Battery dimension measuring tool and battery measuring device

Abstract

The utility model provides a battery dimension measuring tool and a battery measuring device, and belongs to the field of battery measurement. The battery size measuring tool comprises a base, a first positioning assembly, a second positioning assembly and a supporting assembly, the base comprises a first guide rail and a second guide rail which are arranged in parallel at intervals, and the two ends of a third guide rail are connected with the first guide rail and the second guide rail respectively; the first positioning assembly is connected with at least one of the first guide rail and the second guide rail; the first positioning assembly comprises a first positioning part, and the first positioning part is used for providing limiting along a second direction for the to-be-detected workpiece; the second positioning assembly is connected with the third guide rail; the second positioning assembly comprises a second positioning part, and the second positioning part is used for limiting the to-be-detected workpiece in the first direction; the supporting assembly is connected with the base and used for supporting the to-be-tested workpiece in the third direction. The battery dimension measurement tool can improve the reliability of battery measurement and fixation and the convenience of measurement.

Description

Technical Field

[0001] The present application relates to the technical field of battery measurement, and in particular to a battery size measurement tool and a battery measurement device. Background Art

[0002] Energy conservation and emission reduction are the key to the sustainable development of the automobile industry. Electric vehicles have become an important part of the sustainable development of the automobile industry due to their advantages in energy conservation and environmental protection. For electric vehicles, battery technology is an important factor in their development.

[0003] After the battery is produced, its size needs to be measured. The current related battery module measurement tooling lacks the reliability of fixing the battery module, which may cause the battery module to tilt and fall, and each measurement requires repeated positioning, which reduces the measurement efficiency. Utility Model Content

[0004] The present application aims to solve at least one of the technical problems in the background technology. To this end, one object of the present application is to provide a battery size measurement tool and a battery measurement device to improve the reliability of battery measurement fixation and the convenience of measurement.

[0005] An embodiment of the first aspect of the present application provides a battery size measuring tool, which includes a base, a first positioning assembly, a second positioning assembly and a support assembly, the base includes a first guide rail and a second guide rail extending in a first direction and arranged in parallel and spaced relation in a second direction, and a third guide rail extending in the second direction, and both ends of the third guide rail are respectively connected to the first guide rail and the second guide rail; the first positioning assembly is connected to at least one of the first guide rail and the second guide rail; the first positioning assembly includes a first positioning portion, which is configured to be able to translate in the second direction for providing a limit to a workpiece to be measured in the second direction; the second positioning assembly is connected to the third guide rail; the second positioning assembly includes a second positioning portion, which is configured to be able to translate in the first direction for providing a limit to a workpiece to be measured in the first direction; the support assembly is connected to the base and is used to support the workpiece to be measured in a third direction; wherein the first direction and the second direction are intersecting horizontal directions, and the third direction is a vertical direction.

[0006] In the technical solution of the embodiment of the present application, a support component, a first positioning component and a second positioning component are provided, the support component is used to support the battery in the vertical direction, and the first positioning component and the second positioning component are used to limit the battery in different directions on the horizontal plane. The first positioning component and the second positioning component are used to limit the battery, and the battery is provided with a supporting force, which can reduce the probability of the battery tilting and falling. At the same time, for batteries of the same model, the battery size measurement tool does not need to adjust the first positioning component and the second positioning component. By fixing the measurement reference point, it can effectively save measurement time and reduce the error introduced by redetermining the reference point. For batteries of different models, the horizontal dimensions of the first positioning component and the second positioning component can be adjusted according to needs, which also improves the flexibility of the battery size measurement tool and its adaptability to multiple scenarios.

[0007] In some embodiments, the base further includes a fourth guide rail extending along the second direction, the fourth guide rail is connected to at least one of the first guide rail and the second guide rail, and the first positioning portion is movably connected to the fourth guide rail and can translate along the second direction. By providing the fourth guide rail on the first guide rail or the second guide rail, the first positioning portion is movably connected to the fourth guide rail, and the first positioning portion moves along the second direction relative to the fourth guide rail, the first positioning portion can be quickly moved, and the adjustment time required for the contact limit between the first positioning portion and the workpiece to be measured can be shortened.

[0008] In some embodiments, the first positioning assembly further includes a first bracket and a first translation rod, the first bracket is connected to at least one of the first guide rail and the second guide rail; the first translation rod is connected to the first bracket and can translate relative to the first bracket along the second direction, and the first positioning portion is fixedly connected to the end of the first translation rod facing the workpiece to be measured, and is used to provide a limit to the workpiece to be measured along the second direction. By setting the first bracket and the first translation rod, and fixing the first positioning portion to the end of the first translation rod facing the workpiece to be measured, and using the first translation rod to move relative to the first bracket along the second direction, the movement of the first positioning portion can be achieved, so that the first positioning portion and the workpiece to be measured are contacted and limited, and the limit requirement of the second direction of the workpiece to be measured is met.

[0009] In some embodiments, the base also includes a fourth guide rail extending in the second direction, the first bracket includes a first guide rod and a first slider, the first guide rod is connected to the fourth guide rail, and the extension direction of the first guide rod is parallel to the third direction; the first slider is movably connected to the first guide rod and moves in the extension direction of the first guide rod, and the first translation rod is movably connected to the first slider and translates relative to the first slider in the second direction. By setting the first guide rod and the first slider, the first slider is connected to the first translation rod, the first translation rod can drive the first slider to move in the extension direction of the fourth guide rail, the first slider can drive the first translation rod to move in the extension direction of the first guide rod, and the first translation rod can also move relative to the first slider in the second direction, thereby realizing the rapid adjustment of the first positioning portion in the second direction and the movement in the vertical direction, so as to meet the limit requirements of different sizes of workpieces to be measured.

[0010] In some embodiments, the two ends of the third guide rail are movably connected to the first guide rail and the second guide rail, respectively, and the third guide rail can translate together with the second positioning assembly along the first direction. Since the two ends of the third guide rail are movably connected to the first guide rail and the second guide rail, respectively, the movement of the third guide rail along the extension direction of the first guide rail and the second guide rail can quickly drive the second positioning assembly to translate along the first direction, thereby realizing the rapid movement of the second positioning part and shortening the adjustment time required for the contact limit between the second positioning part and the workpiece to be measured.

[0011] In some embodiments, the second positioning assembly includes a second bracket and a second translation rod, the second bracket is connected to the third guide rail; the second translation rod is connected to the second bracket and can translate relative to the second bracket along the first direction, and the second positioning portion is fixedly connected to the end of the second translation rod facing the workpiece to be measured, and is used to provide the workpiece to be measured with a limit position along the first direction. By providing the second bracket and the second translation rod, and fixing the second positioning portion to the end of the second translation rod facing the workpiece to be measured, and using the second translation rod to move relative to the second bracket along the first direction, the movement of the second positioning portion can be achieved, so that the second positioning portion and the workpiece to be measured are contacted and limited, and the limit position requirement of the workpiece to be measured in the first direction is met.

[0012] In some embodiments, the second bracket includes a second guide rod and a second slider, the second guide rod is connected to the third guide rail, and the extension direction of the second guide rod is parallel to the third direction; the second slider is movably connected to the second guide rod and moves along the extension direction of the second guide rod, and the second translation rod is movably connected to the second slider and translates relative to the second slider along the first direction. By setting the second guide rod and the second slider, the second slider is connected to the second translation rod, the second translation rod can drive the second slider to move along the extension direction of the third guide rail, the second slider can drive the second translation rod to move along the extension direction of the second guide rod, and the second translation rod can also move relative to the second slider along the first direction, thereby realizing the movement of the second positioning part along the first direction, the second direction and the vertical direction, so as to meet the limit requirements of different sizes of workpieces to be measured.

[0013] In some embodiments, there are multiple first positioning components, at least one first positioning component is connected to the first guide rail, and at least one first positioning component is connected to the second guide rail; the first positioning component connected to the first guide rail and the first positioning component connected to the second guide rail are arranged opposite to each other, and are used together to limit the position of the workpiece to be measured along the second direction. By respectively arranging the first positioning components on the first guide rail and the second guide rail, and the first positioning components of the first guide rail and the first positioning components of the second guide rail both face the workpiece to be measured, and are used together to limit the position of the workpiece to be measured in the second direction, the shaking of the workpiece to be measured in the second direction is avoided, and the reliability of the battery size measurement tooling in fixing the workpiece to be measured is improved.

[0014] In some embodiments, the support assembly includes a plurality of support plates and lifting rods, wherein the plurality of support plates are used to support the workpiece to be measured; and the lifting rod is connected to each of the plurality of support plates and is used to adjust the height of the support plates. By providing a plurality of support plates and lifting rods, the support plates are used to support the workpiece to be measured, and the lifting rods are used to adjust the height of the support plates, thereby meeting the support requirements of different workpieces to be measured.

[0015] In some embodiments, the base further includes a fifth guide rail extending in the second direction, the two ends of the fifth guide rail are respectively movably connected to the first guide rail and the second guide rail, and can be translated in the first direction, and the lifting rod is movably connected to the fifth guide rail and can be moved in the extension direction of the fifth guide rail. By providing the fifth guide rail, and the two ends of the fifth guide rail are respectively movably connected to the first guide rail and the second guide rail, the movement of the fifth guide rail in the extension direction of the first guide rail and the second guide rail can quickly drive the lifting rod and the support plate to translate in the first direction, and at the same time, the lifting rod and the support plate can also move in the extension direction of the fifth guide rail, thereby realizing the movement of the support plate in the first direction and the second direction, meeting the support requirements of different workpieces to be measured.

[0016] In some embodiments, the support plate is provided with mounting holes with different opening sizes, and the mounting holes are used to install support bosses of different sizes, and the support bosses are used to support workpieces to be measured of different specifications. By providing mounting holes with different opening sizes on the support plate to meet the installation requirements of different support bosses, different support bosses can be used to support workpieces to be measured of different specifications, thereby improving the adaptability of the support plate to multiple types of support.

[0017] In some embodiments, the battery size measuring tool further includes a fixture module, which is fixed on the support plate and clamps the workpiece to be measured together with the support boss, and the workpiece to be measured is a plate-shaped workpiece. By providing the fixture module, the fixture module is used in conjunction with the support plate to fix the plate-shaped workpiece, thereby increasing the application scope of the battery size measuring tool and improving the adjustment flexibility of the battery size measuring tool.

[0018] In some embodiments, the battery size measurement tool further includes a bottom plate, the bottom plate is arranged with matrix positioning holes, and the first guide rail and the second guide rail can be fixed on the bottom plate through different positioning holes. By adding a bottom plate, fixing the base on the bottom plate, and using the bottom plate to support the battery size measurement tool, the requirements of the battery size measurement tool for the support environment can be reduced. At the same time, the bottom plate is arranged with matrix positioning holes, which can flexibly adjust the distance between the first guide rail and the second guide rail, and increase the adjustable measurement stroke of the battery size measurement tool to meet the measurement requirements of multiple types of workpieces to be measured.

[0019] An embodiment of the second aspect of the present application provides a battery measuring device, which includes the battery size measuring tool and the detection element in the above embodiment, the battery size measuring tool is used to carry the workpiece to be measured, and the workpiece to be measured is an electrode assembly, a battery cell or a battery module; the detection element is used to detect the external dimensions of the workpiece to be measured.

[0020] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0022] Figure 1 A schematic diagram of the structure of a battery size measuring tool according to some embodiments of the present application;

[0023] Figure 2A schematic diagram of the structure of another battery size measuring tool according to some embodiments of the present application;

[0024] Figure 3 A schematic structural diagram of a battery size measuring tool from another perspective in some embodiments of the present application;

[0025] Figure 4 A structural side view of a battery size measuring tool according to some embodiments of the present application;

[0026] Figure 5 A structural front view of a battery size measuring tool according to some embodiments of the present application;

[0027] Figure 6 This is a schematic diagram of the structure of a first positioning component in some embodiments of the present application;

[0028] Figure 7 This is a schematic diagram of the support component structure of some embodiments of the present application.

[0029] Description of reference numerals:

[0030] 100. Battery size measuring tool; 110. Base; 111. First guide rail; 112. Second guide rail; 113. Third guide rail; 114. Fourth guide rail; 115. Fifth guide rail; 116. Third slider; 120. First positioning assembly; 121. First positioning portion; 122. First translation rod; 123. First slider; 124. First guide rod; 130. Second positioning assembly; 131. Second positioning portion; 132. Second translation rod; 133. Second slider; 134. Second guide rod; 140. Support assembly; 141. Support plate; 1411. Mounting hole; 1412. Support boss; 142. Lifting rod; 150. Fixture module; 160. Bottom plate; 161. Positioning hole. DETAILED DESCRIPTION

[0031] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0033] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0034] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0035] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0036] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0037] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0038] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0039] At present, from the perspective of market development, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0040] After the electrode assembly, battery cell, battery module and other related battery devices are generated, they need to be measured and analyzed for their dimensional shape and position tolerance using three-coordinate measurement. The shape and position tolerance measurement of the battery needs to ensure the stability of the battery fixation and the convenience of measurement. At present, the relevant measurement scheme first uses the measuring tool to fix the battery. Due to the structural limitations of the tool, the coordinate system needs to be manually established, and then the machine can be used for automated measurement.

[0041] At present, the relevant measuring jigs can only play a supporting role. The measuring jigs cannot meet the requirements of multi-degree-of-freedom positioning of batteries. When measuring the dimensional shape and position tolerance of batteries, there is a risk of the battery tilting and falling, which may cause the battery to be damaged or even pierce the battery cell, causing serious safety accidents. At the same time, because the measuring jig cannot achieve multi-degree-of-freedom positioning, even for batteries of the same model batch, after the battery is installed on the measuring jig manually or by machine, it needs to be manually repositioned. Repositioning reduces the efficiency of measurement and introduces measurement errors, causing inconvenience to the measurement.

[0042] In order to solve the above problems, the battery size measurement tool of the present application is provided with a support component, a first positioning component and a second positioning component, the support component is used to support the battery in the vertical direction, and the first positioning component and the second positioning component are used to limit the battery in different directions on the horizontal plane. The first positioning component and the second positioning component are used to limit the battery, and the battery is provided with a supporting force through the limiting of the first positioning component and the second positioning component, which can reduce the probability of the battery tilting and falling. At the same time, for batteries of the same model, the battery size measurement tool does not need to adjust the first positioning component and the second positioning component. By fixing the measurement reference point, it can effectively save measurement time and reduce the error introduced by redetermining the reference point. For batteries of different models, the horizontal dimensions of the first positioning component and the second positioning component can be adjusted according to needs, which also improves the flexibility of the battery size measurement tool and its adaptability to multiple scenarios.

[0043] The battery size measurement tool disclosed in the embodiment of the present application can be used, but not limited to, for the measurement and analysis of the size and position tolerance of the battery module. Any device structure that needs to be measured can use the battery size measurement tool of the present application, including but not limited to: using the battery size measurement tool of the present application to measure the size of the battery cell and obtain the shape and position tolerance information of the battery cell; using the battery size measurement tool of the present application to measure the size of the electrode assembly and obtain the shape and position tolerance information of the electrode assembly. For the convenience of explanation, the workpiece to be measured is described below using a battery as an example.

[0044] The present application embodiment provides a battery size measuring tool 100, such as Figures 1 to 3 As shown, Figure 1 A schematic diagram of the structure of a battery size measuring tool according to some embodiments of the present application; Figure 2 A schematic diagram of the structure of another battery size measuring tool according to some embodiments of the present application; Figure 3 The battery size measuring tool 100 of some embodiments of the present application is a schematic diagram of another perspective. The battery size measuring tool 100 includes a base 110, a first positioning assembly 120, a second positioning assembly 130 and a support assembly 140. The base 110 includes a first guide rail 111 and a second guide rail 112 extending in a first direction and arranged in parallel and spaced apart in a second direction, and a third guide rail 113 extending in the second direction. The two ends of the third guide rail 113 are respectively connected to the first guide rail 111 and the second guide rail 112; the first positioning assembly 120 is connected to at least one of the first guide rail 111 and the second guide rail 112; the first positioning assembly 120 includes a third guide rail 113; A positioning portion 121, the first positioning portion 121 is constructed to be able to translate along the second direction for providing a limit to the workpiece to be measured along the second direction; the second positioning assembly 130 is connected to the third guide rail 113; the second positioning assembly 130 includes a second positioning portion 131, the second positioning portion 131 is constructed to be able to translate along the first direction for providing a limit to the workpiece to be measured along the first direction; the supporting assembly 140 is connected to the base 110 and is used to support the workpiece to be measured along the third direction; wherein the first direction and the second direction are intersecting horizontal directions, and the third direction is a vertical direction.

[0045] The base 110 is the bottom support structure of the battery size measuring tool 100, including a first guide rail 111 and a second guide rail 112. The first guide rail 111 and the second guide rail 112 are spaced apart along the second direction and both extend along the first direction. The specific material, spacing distance and extension length of the first guide rail 111 and the second guide rail 112 are determined according to actual needs. The first direction and the second direction are intersecting horizontal directions, that is, the first direction is Figure 1 The middle X direction, the second direction is Figure 1The base 110 further includes a third guide rail 113, the two ends of which are respectively connected to the first guide rail 111 and the second guide rail 112, and the angle between the extension direction of the third guide rail 113 and the first guide rail 111 can be an acute angle or a right angle. The connection here includes a fixed connection and a movable connection. The fixed connection means that the third guide rail 113 cannot move relative to the first guide rail 111 and the second guide rail 112, and the movable connection means that the third guide rail 113 can slide along the extension direction of the first guide rail 111 and the second guide rail 112 through structures such as sliders.

[0046] The first positioning assembly 120 is used to abut against the workpiece to be measured so as to limit the workpiece to be measured in the second direction. Figure 1 For the limitation in the Y direction, for the convenience of explanation, the workpiece to be measured is explained by taking the battery as an example. The first positioning assembly 120 is connected to at least one of the first guide rail 111 and the second guide rail 112. The connection here also includes a fixed connection and a movable connection. The movable connection means that the first positioning assembly 120 can move along the extension direction of the first guide rail 111 or the second guide rail 112, that is, move along the first direction. The first positioning assembly 120 includes a first positioning portion 121. Through the movement of the first positioning assembly 120 in the second direction, the first positioning portion 121 can be translated along the second direction, so that the first positioning portion 121 contacts the battery, limits the battery in the second direction, and restricts the movement of the battery along the second direction. Any structure that can make the first positioning portion 121 move in the second direction meets the requirements of this application. For example, the first positioning assembly 120 includes a bracket extending in the second direction, one end of the bracket is connected to the first guide rail 111, the first positioning portion 121 is slidably connected to the bracket, and the first positioning portion 121 moves along the second direction on the bracket.

[0047] The second positioning assembly 130 is used to abut against the battery to limit the battery in a first direction, that is, Figure 1The second positioning assembly 130 is connected to the third guide rail 113, and the connection here also includes a fixed connection and a movable connection. The movable connection means that the second positioning assembly 130 can move along the extension direction of the third guide rail 113, that is, move along the second direction. The second positioning assembly 130 includes a second positioning portion 131. Through the movement of the second positioning assembly 130 in the first direction, the second positioning portion 131 can translate along the first direction, so that the second positioning portion 131 contacts the battery, limits the battery in the first direction, and restricts the movement of the battery along the first direction. Any structure that can enable the second positioning portion 131 to move in the first direction meets the requirements of this application. For example, the second positioning assembly 130 includes a bracket extending in the first direction, one end of the bracket is connected to the third guide rail 113, the second positioning portion 131 is slidably connected to the bracket, and the second positioning portion 131 moves along the first direction on the bracket.

[0048] The support assembly 140 is a device structure for supporting the battery in a third direction, which is a vertical direction. Figure 1 In the Z direction, the support assembly 140 is connected to the base 110, and any structure that can support the battery in the vertical direction meets the requirements of this application, for example, a support column, a support frame, etc.

[0049] By setting the support assembly 140, the first positioning assembly 120 and the second positioning assembly 130, the support assembly 140 is used to support the battery in the vertical direction, and the first positioning assembly 120 and the second positioning assembly 130 are used to limit the battery in different directions on the horizontal plane. The first positioning assembly 120 and the second positioning assembly 130 are used to limit the battery, and the probability of the battery tilting and falling can be reduced. At the same time, for batteries of the same model, the battery size measurement tool 100 does not need to adjust the first positioning assembly 120 and the second positioning assembly 130. By fixing the measurement reference point, it can effectively save measurement time and reduce the error introduced by re-determining the reference point; for batteries of different models, the horizontal dimensions of the first positioning assembly 120 and the second positioning assembly 130 can be adjusted according to needs, which also improves the flexibility of the battery size measurement tool 100 and its adaptability to multiple scenarios.

[0050] According to some embodiments of the present application, Figure 2 As shown, the base 110 further includes a fourth guide rail 114 extending along the second direction, the fourth guide rail 114 is connected to at least one of the first guide rail 111 and the second guide rail 112, and the first positioning portion 121 is movably connected to the fourth guide rail 114 and can translate along the second direction.

[0051] The first positioning portion 121 is movably connected to the fourth guide rail 114, and the fourth guide rail 114 extends along the second direction. The first positioning portion 121 can slide along the extension direction of the fourth guide rail 114, and the fourth guide rail 114 is used to increase the travel of the first positioning portion 121 in the second direction. Figure 1 The Y direction travel in .

[0052] The fourth guide rail 114 is connected to at least one of the first guide rail 111 and the second guide rail 112, and the connection here includes a fixed connection and a movable connection. In the fixed connection, the fourth guide rail 114 cannot move relative to the first guide rail 111 or the second guide rail 112, and the movable connection is through a related structure, such as a slider structure, which enables the fourth guide rail 114 to slide along the extension direction of the first guide rail 111 and the second guide rail 112.

[0053] Exemplarily, the fourth guide rail 114 is connected to the first guide rail 111 via a third slider 116, and the third slider 116 drives the fourth guide rail 114 and the first positioning portion 121 to move along the extension direction of the first guide rail 111, and the first positioning portion 121 can move quickly along the extension direction of the fourth guide rail 114, thereby realizing movement in the first direction and the second direction.

[0054] By providing the fourth guide rail 114 on the first guide rail 111 or the second guide rail 112, the first positioning portion 121 is movably connected to the fourth guide rail 114, and the first positioning portion 121 moves along the second direction relative to the fourth guide rail 114, the first positioning portion 121 can be quickly moved, thereby shortening the adjustment time required for the contact limit between the first positioning portion 121 and the workpiece to be measured.

[0055] According to some embodiments of the present application, Figures 4 to 6 As shown, Figure 4 A structural side view of a battery size measuring tool according to some embodiments of the present application; Figure 5 A structural front view of a battery size measuring tool according to some embodiments of the present application; Figure 6 This is a schematic diagram of the structure of the first positioning assembly of some embodiments of the present application; the first positioning assembly 120 also includes a first bracket and a first translation rod 122, the first bracket is connected to at least one of the first guide rail 111 and the second guide rail 112; the first translation rod 122 is connected to the first bracket and can be translated along the second direction relative to the first bracket, and the first positioning portion 121 is fixedly connected to one end of the first translation rod 122 facing the workpiece to be measured, and is used to provide a limit to the workpiece to be measured along the second direction.

[0056] The first bracket is a structure that provides support for the first translation rod 122, and the first bracket is connected to at least one of the first guide rail 111 and the second guide rail 112. The connection here includes direct connection and indirect connection. The direct connection is that the first bracket is directly connected to the first guide rail 111 or the second guide rail 112, and the first bracket can move or be fixed relative to the first guide rail 111 or the second guide rail 112; the indirect connection is that the first bracket is connected to the fourth guide rail 114, and then connected to the first guide rail 111 or the second guide rail 112 by the fourth guide rail 114, and the first bracket can move along the extension direction of the fourth guide rail 114.

[0057] One end of the first translation rod 122 facing the workpiece to be measured is fixedly connected to the first positioning portion 121 , and the first translation rod 122 can drive the first positioning portion 121 to translate along the second direction relative to the first bracket.

[0058] Exemplarily, the first bracket moves along the extension direction of the first guide rail 111 or the second guide rail 112, and the first bracket can drive the first translation rod 122 and the first positioning portion 121 to move along the first direction, and the first translation rod 122 translates relative to the first bracket along the second direction, thereby realizing the movement of the first positioning portion 121 along the first direction and the second direction, and limiting the position of the workpiece to be measured in the second direction. Exemplarily, the first bracket is fixed relative to the first guide rail 111 or the second guide rail 112, and the first translation rod 122 translates relative to the first bracket along the second direction, thereby realizing the movement of the first positioning portion 121 along the second direction, and limiting the position of the workpiece to be measured in the second direction.

[0059] By setting a first bracket and a first translation rod 122, and fixing the first positioning portion 121 to the end of the first translation rod 122 facing the workpiece to be measured, the first translation rod 122 is moved relative to the first bracket along the second direction, so that the first positioning portion 121 can be moved in contact with the workpiece to be measured to meet the limitation requirement of the second direction of the workpiece to be measured.

[0060] According to some embodiments of the present application, Figures 1 to 3 As shown, the base 110 also includes a fourth guide rail 114 extending along the second direction, the first bracket includes a first guide rod 124 and a first slider 123, the first guide rod 124 is connected to the fourth guide rail 114, and the extension direction of the first guide rod 124 is parallel to the third direction; the first slider 123 is movably connected to the first guide rod 124 and moves along the extension direction of the first guide rod 124, and the first translation rod 122 is movably connected to the first slider 123, and translates along the second direction relative to the first slider 123.

[0061] The first guide rod 124 is connected to the fourth guide rail 114, and the connection here includes a movable connection and a fixed connection. Exemplarily, the first guide rod 124 is connected to the fourth guide rail 114 through the third slider 116, and the fourth guide rail 114 is connected to the first guide rail 111 through the third slider 116, and the first guide rod 124 can move along the extension direction of the fourth guide rail 114 and the extension direction of the first guide rail 111.

[0062] The extending direction of the first guide rod 124 is parallel to the third direction, that is, Figure 1 In the middle Z direction, the first guide rod 124 is connected to the first slider 123 , and the first slider 123 can be lifted and moved along the extension direction of the first guide rod 124 . The first translation rod 122 is movably connected to the first slider 123 and translates relative to the first slider 123 along the second direction.

[0063] When the first guide rod 124 can move along the extension direction of the fourth guide rail 114 and the extension direction of the first guide rail 111, the first slider 123 on the first guide rod 124 and the first translation rod 122 and the first positioning portion 121 can also move accordingly, and the first slider 123 can drive the first positioning portion 121 to rise and fall in the vertical direction, and the first positioning portion 121 can translate in the second direction relative to the first slider 123, so that the first positioning portion 121 can be adjusted in the first direction, the second direction and the third direction.

[0064] By setting the first guide rod 124 and the first slider 123, the first slider 123 is connected to the first translation rod 122, the first translation rod 122 can drive the first slider 123 to move along the extension direction of the fourth guide rail 114, the first slider 123 can drive the first translation rod 122 to move along the extension direction of the first guide rod 124, and the first translation rod 122 can also move in the second direction relative to the first slider 123, thereby realizing the rapid adjustment of the first positioning part 121 along the second direction and the movement in the vertical direction, so as to meet the limit requirements of different sizes of workpieces to be measured.

[0065] According to some embodiments of the present application, Figures 1 to 3 As shown, two ends of the third guide rail 113 are movably connected to the first guide rail 111 and the second guide rail 112 respectively, and the third guide rail 113 can translate along the first direction together with the second positioning assembly 130 .

[0066] The two ends of the third guide rail 113 are movably connected to the first guide rail 111 and the second guide rail 112, respectively. The third guide rail 113 is moved relative to the extension direction of the first guide rail 111 and the second guide rail 112, thereby driving the second positioning assembly 130 on the third guide rail 113 to quickly move along the extension direction of the first guide rail 111 and the second guide rail 112. Any structure that can realize the movement of the third guide rail 113 relative to the first guide rail 111 and the second guide rail 112 meets the requirements of this application. For example, both ends of the third guide rail 113 are connected to the first guide rail 111 and the second guide rail 112 through the third slider 116.

[0067] By movably connecting the two ends of the third guide rail 113 with the first guide rail 111 and the second guide rail 112 respectively, the movement of the third guide rail 113 along the extension direction of the first guide rail 111 and the second guide rail 112 can quickly drive the second positioning assembly 130 to translate along the first direction, thereby realizing rapid movement of the second positioning portion 131 and shortening the adjustment time required for the contact limit between the second positioning portion 131 and the workpiece to be measured.

[0068] According to some embodiments of the present application, Figure 2 and Figure 5 As shown, the second positioning assembly 130 includes a second bracket and a second translation rod 132, the second bracket is connected to the third guide rail 113; the second translation rod 132 is connected to the second bracket and can translate relative to the second bracket along the first direction, and the second positioning portion 131 is fixedly connected to one end of the second translation rod 132 facing the workpiece to be measured, and is used to provide a limit to the workpiece to be measured along the first direction.

[0069] The second bracket is a structure that provides support for the second translation rod 132. The second bracket is connected to the third guide rail 113. The connection here includes a fixed connection and a movable connection. The fixed connection means that the first bracket cannot move relative to the third guide rail 113. The movable connection is through a related structure, such as a slider structure, which enables the first bracket to slide along the extension direction of the third guide rail 113.

[0070] One end of the second translation rod 132 facing the workpiece to be measured is fixedly connected to the second positioning portion 131 , and the second translation rod 132 can drive the second positioning portion 131 to translate along the first direction relative to the second bracket.

[0071] Exemplarily, when the second bracket moves along the extension direction of the third guide rail 113, the second bracket can drive the second translation rod 132 and the second positioning portion 131 to move along the second direction, and when the second translation rod 132 translates relative to the second bracket along the first direction, the second positioning portion 131 can move along the first direction and the second direction, and the workpiece to be measured can be limited in the first direction. Exemplarily, when the second bracket is fixed relative to the third guide rail 113, the second translation rod 132 translates relative to the second bracket along the first direction, the second positioning portion 131 can move along the first direction, and the workpiece to be measured can be limited in the first direction.

[0072] By setting up a second bracket and a second translation rod 132, and fixing the second positioning portion 131 to the end of the second translation rod 132 facing the workpiece to be measured, the second translation rod 132 can be moved relative to the second bracket along the first direction to achieve movement of the second positioning portion 131, so that the second positioning portion 131 is in contact and limited with the workpiece to be measured, thereby meeting the limiting requirement of the first direction of the workpiece to be measured.

[0073] According to some embodiments of the present application, Figure 2 and Figure 5 As shown, the second bracket includes a second guide rod 134 and a second slider 133. The second guide rod 134 is connected to the third guide rail 113, and the extension direction of the second guide rod 134 is parallel to the third direction. The second slider 133 is movably connected to the second guide rod 134 and moves along the extension direction of the second guide rod 134. The second translation rod 132 is movably connected to the second slider 133 and translates along the first direction relative to the second slider 133.

[0074] The second guide rod 134 is connected to the third guide rail 113, and the connection here includes a movable connection and a fixed connection. Exemplarily, the second guide rod 134 is connected to the third guide rail 113 through a third slider 116, and the two ends of the third guide rail 113 are respectively connected to the first guide rail 111 and the second guide rail 112 through the third slider 116, and the second guide rod 134 can move along the extension direction of the third guide rail 113 and the extension direction of the first guide rail 111.

[0075] The extending direction of the second guide rod 134 is parallel to the third direction, that is, Figure 2 In the middle Z direction, the second guide rod 134 is connected to the second slider 133, and the second slider 133 can be lifted and moved along the extension direction of the second guide rod 134.

[0076] The second translation rod 132 is movably connected to the second sliding block 133 , and translates relative to the second sliding block 133 along the second direction.

[0077] When the second guide rod 134 can move along the extension direction of the third guide rail 113 and the extension direction of the first guide rail 111, the second slider 133, the second translation rod 132 and the second positioning portion 131 on the second guide rod 134 can also move accordingly, and the second slider 133 can drive the second positioning portion 131 to rise and fall in the vertical direction, and the second positioning portion 131 can translate in the second direction relative to the second slider 133, so that the second positioning portion 131 can realize adjustment in the first direction, the second direction and the third direction.

[0078] By setting a second guide rod 134 and a second slider 133, the second slider 133 is connected to the second translation rod 132, and the second translation rod 132 can drive the second slider 133 to move along the extension direction of the third guide rail 113, and the second slider 133 can drive the second translation rod 132 to move along the extension direction of the second guide rod 134, and the second translation rod 132 can also move relative to the second slider 133 along the first direction, thereby realizing the movement of the second positioning part 131 along the first direction, the second direction and the vertical direction to meet the limit requirements of different sizes of workpieces to be measured.

[0079] According to some embodiments of the present application, Figure 2 and Figure 4 As shown, there are multiple first positioning components 120, at least one first positioning component 120 is connected to the first guide rail 111, and at least one first positioning component 120 is connected to the second guide rail 112; the first positioning component 120 connected to the first guide rail 111 and the first positioning component 120 connected to the second guide rail 112 are arranged facing each other, and are jointly used for limiting the workpiece to be measured along the second direction.

[0080] At least one first positioning assembly 120 is connected to each of the first guide rail 111 and the second guide rail 112. For example, two first positioning assemblies 120 are connected to the first guide rail 111, and one first positioning assembly 120 is connected to the second guide rail 112. The first positioning assembly 120 connected to the first guide rail 111 and the first positioning assembly 120 connected to the second guide rail 112 are arranged facing each other in the second direction, so that the first positioning portion 121 of the first positioning assembly 120 connected to the first guide rail 111 and the first positioning portion 121 of the first positioning assembly 120 connected to the second guide rail 112 are both facing the workpiece to be measured, thereby achieving limited clamping of the workpiece to be measured along the second direction.

[0081] By respectively providing the first positioning assembly 120 on the first guide rail 111 and the second guide rail 112, and both the first positioning assembly 120 of the first guide rail 111 and the first positioning assembly 120 of the second guide rail 112 face the workpiece to be measured, and are used together to limit the workpiece to be measured in the second direction, thereby avoiding shaking of the workpiece to be measured in the second direction and improving the reliability of the battery size measuring tool 100 in fixing the workpiece to be measured.

[0082] According to some embodiments of the present application, Figure 2 and Figure 7 As shown, Figure 7 The support assembly 140 includes a plurality of support plates 141 and a lifting rod 142 . The plurality of support plates 141 are used to support the workpiece to be measured. The lifting rod 142 is connected to each of the plurality of support plates 141 and is used to adjust the height of the support plate 141 .

[0083] The support plate 141 is used to provide support force for the workpiece to be measured. The shape, size and number of the support plate 141 can be adjusted and changed according to the actual situation of the workpiece to be measured. The bottom of each support plate 141 is independently connected to a lifting rod 142, and the lifting rod 142 can adjust the height of the support plate 141 by lifting and lowering, thereby adjusting the height of the workpiece to be measured.

[0084] By providing a plurality of support plates 141 and lifting rods 142 , the support plates 141 are used to support the workpiece to be measured, and the lifting rods 142 are used to adjust the height of the support plates 141 , thereby meeting the support requirements of different workpieces to be measured.

[0085] According to some embodiments of the present application, Figure 2 and Figure 7 As shown, the base 110 also includes a fifth guide rail 115 extending along the second direction, and both ends of the fifth guide rail 115 are respectively movably connected to the first guide rail 111 and the second guide rail 112 and can translate along the first direction, and the lifting rod 142 is movably connected to the fifth guide rail 115 and can move along the extension direction of the fifth guide rail 115.

[0086] The two ends of the fifth guide rail 115 are respectively movably connected to the first guide rail 111 and the second guide rail 112, that is, the fifth guide rail 115 can move along the first direction; one end of the lifting rod 142 is movably connected to the fifth guide rail 115, and the fifth guide rail 115 extends along the second direction, that is, the lifting rod 142 can move along the second direction relative to the fifth guide rail 115.

[0087] Exemplarily, one end of the lifting rod 142 is connected to the fifth guide rail 115 via the third slider 116, and the lifting rod 142 can move along the extension direction of the fifth guide rail 115, and both ends of the fifth guide rail 115 are connected to the first guide rail 111 and the second guide rail 112 via the third slider 116, and the fifth guide rail 115 can move along the extension direction of the first guide rail 111 and the second guide rail 112, thereby realizing the movement of the lifting rod 142 along the first direction and the second direction.

[0088] By setting up the fifth guide rail 115, and the two ends of the fifth guide rail 115 are movably connected to the first guide rail 111 and the second guide rail 112 respectively, the movement of the fifth guide rail 115 along the extension direction of the first guide rail 111 and the second guide rail 112 can quickly drive the lifting rod 142 and the support plate 141 to translate along the first direction. At the same time, the lifting rod 142 and the support plate 141 can also move along the extension direction of the fifth guide rail 115, thereby realizing the movement of the support plate 141 along the first direction and the second direction, thereby meeting the support requirements of different workpieces to be measured.

[0089] According to some embodiments of the present application, Figure 2 and Figure 7 As shown, the support plate 141 is provided with mounting holes 1411 with different opening sizes, the mounting holes 1411 are used to install supporting bosses 1412 of different sizes, and the supporting bosses 1412 are used to support workpieces to be measured of different specifications.

[0090] The support plate 141 is provided with mounting holes 1411 with different opening sizes, such as circular holes, square holes, etc. The mounting holes 1411 are used to mount support bosses 1412 of different sizes, such as circular bosses, square bosses, etc.

[0091] By providing mounting holes 1411 with different opening sizes on the support plate 141 to meet the installation requirements of different support bosses 1412 , different support bosses 1412 can be used to support workpieces of different specifications to be measured, thereby improving the adaptability of the support plate 141 to multiple types of supports.

[0092] According to some embodiments of the present application, Figure 2 and Figure 7 As shown, the battery size measuring tool 100 also includes a fixture module 150, which is fixed on the support plate 141 and clamps the workpiece to be measured together with the support boss 1412. The workpiece to be measured is a plate-shaped workpiece.

[0093] The clamp module 150 is a structure for fixing and clamping a plate-like workpiece. The clamp module 150 is fixed on the support plate 141 , and the clamp portion of the clamp module 150 cooperates with the support boss 1412 to clamp the plate-like workpiece in the vertical direction.

[0094] By providing the fixture module 150 and utilizing the fixture module 150 in conjunction with the support plate 141 to fix the plate-shaped workpiece, the application scope of the battery size measuring tool 100 is increased, and the adjustment flexibility of the battery size measuring tool 100 is improved.

[0095] According to some embodiments of the present application, Figure 2As shown, the battery size measuring tool 100 also includes a base plate 160 , and the base plate 160 is arranged with matrix positioning holes 161 . The first guide rail 111 and the second guide rail 112 can be fixed on the base plate 160 through different positioning holes 161 .

[0096] The bottom plate 160 serves as the bottom support structure of the battery size measuring tool 100 . A matrix of positioning holes 161 is arranged on the bottom plate 160 . The shape, size and number of the positioning holes 161 are determined according to actual conditions. The first guide rail 111 and the second guide rail 112 are fixed to the bottom plate 160 through the positioning holes 161 .

[0097] By adding a base plate 160, fixing the base 110 on the base plate 160, and using the base plate 160 to support the battery size measuring tool 100, the demand for the supporting environment of the battery size measuring tool 100 can be reduced. At the same time, the base plate 160 is arranged with matrix positioning holes 161, which can flexibly adjust the distance between the first guide rail 111 and the second guide rail 112, thereby increasing the adjustable measurement stroke of the battery size measuring tool 100 to meet the measurement requirements of multiple types of workpieces to be measured.

[0098] An embodiment of the second aspect of the present application provides a battery measuring device, which includes the battery size measuring tool 100 and the detection element in the above embodiment, the battery size measuring tool 100 is used to carry the workpiece to be measured, and the workpiece to be measured is an electrode assembly, a battery cell or a battery module; the detection element is used to detect the external dimensions of the workpiece to be measured.

[0099] According to some embodiments of the present application, the battery size measuring tool 100 includes a base 110 , a first positioning assembly 120 , a second positioning assembly 130 , a supporting assembly 140 and a bottom plate 160 .

[0100] The base 110 includes a first guide rail 111, a second guide rail 112, a third guide rail 113, a fourth guide rail 114 and a fifth guide rail 115. The first guide rail 111 and the second guide rail 112 extend in the first direction and are fixed on the bottom plate 160 in parallel and spaced apart in the second direction; both ends of the third guide rail 113 are respectively connected to the first guide rail 111 and the second guide rail 112 through a third slider 116, so that the third guide rail 113 can move in the first direction; there are a plurality of fourth guide rails 114 and they extend in the second direction, at least one fourth guide rail 114 is connected to the first guide rail 111 through the third slider 116, and at least one fourth guide rail 114 is connected to the second guide rail 112 through the third slider 116, so that the fourth guide rail 114 can move in the first direction; both ends of the fifth guide rail 115 are respectively connected to the first guide rail 111 and the second guide rail 112 through the third slider 116, so that the fifth guide rail 115 can move in the first direction.

[0101] The first positioning assembly 120 includes a first positioning portion 121, a first translation rod 122, a first slider 123 and a first guide rod 124. The first positioning portion 121 is fixedly connected to one end of the first translation rod 122 facing the workpiece to be measured, the extension direction of the first guide rod 124 is parallel to the vertical direction, at least one first guide rod 124 is connected to the fourth guide rail 114 on the first guide rail 111 through the third slider 116, at least one first guide rod 124 is connected to the fourth guide rail 114 on the second guide rail 112 through the third slider 116, and the first guide rod 124 can move along the extension direction of the fourth guide rail 114. The first slider 123 is connected to the first guide rod 124, and the first slider 123 moves along the extension direction of the first guide rod 124, and the first translation rod 122 can move relative to the first slider 123 along the second direction.

[0102] The second positioning assembly 130 includes a second positioning portion 131, a second translation rod 132, a second slider 133, and a second guide rod 134. The second positioning portion 131 is fixedly connected to one end of the second translation rod 132 facing the workpiece to be measured, the extension direction of the second guide rod 134 is parallel to the vertical direction, the second guide rod 134 is connected to the third guide rail 113 through the third slider 116, and the second guide rod 134 can move along the extension direction of the third guide rail 113. The second slider 133 is connected to the second guide rod 134, and the second slider 133 moves along the extension direction of the second guide rod 134, and the second translation rod 132 can move along the first direction relative to the second slider 133.

[0103] The support assembly 140 includes a plurality of support plates 141 and a lifting rod 142. The plurality of support plates 141 are used to support the workpiece to be measured, and the lifting rod 142 is connected to each of the plurality of support plates 141 and is used to adjust the height of the support plate 141. One end of the lifting rod 142 is connected to the fifth guide rail 115 through the third slider 116, and the lifting rod 142 can move along the extension direction of the fifth guide rail 115.

[0104] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A battery size measuring tool, characterized in that: include: A base, comprising a first guide rail and a second guide rail extending in a first direction and arranged in parallel and spaced apart in a second direction, and a third guide rail extending in the second direction, wherein two ends of the third guide rail are respectively connected to the first guide rail and the second guide rail; A first positioning assembly connected to at least one of the first guide rail and the second guide rail; the first positioning assembly includes a first positioning portion, and the first positioning portion is configured to be able to translate along the second direction to provide a limit to the workpiece to be measured along the second direction; a second positioning assembly connected to the third guide rail; the second positioning assembly includes a second positioning portion, the second positioning portion being configured to be able to translate along the first direction so as to provide a limit position for the workpiece to be measured along the first direction; A supporting assembly connected to the base and used to support the workpiece to be measured along a third direction; The first direction and the second direction are intersecting horizontal directions, and the third direction is a vertical direction.

2. The battery size measuring tool according to claim 1, characterized in that: The base further includes a fourth guide rail extending along the second direction, the fourth guide rail being connected to at least one of the first guide rail and the second guide rail, and the first positioning portion is movably connected to the fourth guide rail and can translate along the second direction.

3. The battery size measuring tool according to claim 1, characterized in that: The first positioning component also includes: a first bracket connected to at least one of the first guide rail and the second guide rail; The first translation rod is connected to the first bracket and can translate relative to the first bracket along the second direction. The first positioning portion is fixedly connected to one end of the first translation rod facing the workpiece to be measured, and is used to provide a limit for the workpiece to be measured along the second direction.

4. The battery size measuring tool according to claim 3, characterized in that: The base further includes a fourth guide rail extending along the second direction, and the first bracket includes: A first guide rod connected to the fourth guide rail, wherein an extending direction of the first guide rod is parallel to the third direction; The first sliding block is movably connected to the first guide rod and moves along the extension direction of the first guide rod. The first translation rod is movably connected to the first sliding block and translates relative to the first sliding block along the second direction.

5. The battery size measuring tool according to claim 1, characterized in that: Both ends of the third guide rail are movably connected to the first guide rail and the second guide rail respectively, and the third guide rail can translate along the first direction together with the second positioning assembly.

6. The battery size measuring tool according to claim 1, characterized in that: The second positioning component comprises: A second bracket connected to the third guide rail; The second translation rod is connected to the second bracket and can translate relative to the second bracket along the first direction. The second positioning portion is fixedly connected to one end of the second translation rod facing the workpiece to be measured, and is used to provide a limit for the workpiece to be measured along the first direction.

7. The battery size measuring tool according to claim 6, characterized in that: The second bracket comprises: A second guide rod connected to the third guide rail, wherein an extending direction of the second guide rod is parallel to the third direction; The second sliding block is movably connected to the second guide rod and moves along the extension direction of the second guide rod. The second translation rod is movably connected to the second sliding block and translates relative to the second sliding block along the first direction.

8. The battery size measuring tool according to any one of claims 1 to 7, characterized in that: There are multiple first positioning components, at least one of which is connected to the first guide rail, and at least one of which is connected to the second guide rail; The first positioning assembly connected to the first guide rail and the first positioning assembly connected to the second guide rail are arranged facing each other and are used together to limit the position of the workpiece to be measured along the second direction.

9. The battery size measuring tool according to any one of claims 1 to 7, characterized in that: The support assembly comprises: A plurality of support plates, used for supporting the workpiece to be measured; and A lifting rod is connected to each of the plurality of support plates and is used to adjust the height of the support plates.

10. The battery size measuring tool according to claim 9, characterized in that: The base also includes a fifth guide rail extending along the second direction, both ends of the fifth guide rail are movably connected to the first guide rail and the second guide rail respectively, and can translate along the first direction, and the lifting rod is movably connected to the fifth guide rail and can move along the extension direction of the fifth guide rail.

11. The battery size measuring tool according to claim 9, characterized in that: The support plate is provided with mounting holes with different opening sizes, the mounting holes are used to install support bosses with different sizes, and the support bosses are used to support workpieces to be measured with different specifications.

12. The battery size measuring tool according to claim 11, characterized in that: The battery size measuring tool also includes a fixture module, which is fixed on the support plate and clamps the workpiece to be measured together with the support boss. The workpiece to be measured is a plate-shaped workpiece.

13. The battery size measuring tool according to claim 1, characterized in that: The battery size measuring tool also includes a bottom plate, and the bottom plate is arranged with matrix positioning holes. The first guide rail and the second guide rail can be fixed on the bottom plate through different positioning holes.

14. A battery measuring device, characterized in that: include: The battery size measuring tool according to any one of claims 1 to 13, wherein the battery size measuring tool is used to carry a workpiece to be measured, and the workpiece to be measured is an electrode assembly, a battery cell or a battery module; The detection element is used to detect the external dimensions of the workpiece to be detected.

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