A size measuring device

Abstract

This invention provides a size measuring device, relating to the field of size detection technology. In this invention, a first laser probe measures a first vertical distance between itself and the side of the target object extending along a first horizontal direction; a second laser probe measures a second vertical distance between itself and the side of the target object extending along a second horizontal direction; and a third laser probe measures a third vertical distance between itself and the upper surface of the target object. A calculation unit is connected to the first, second, and third laser probes and receives measurement data from them to calculate the length, width, and thickness of the target object. This technical solution, through the cooperation of the laser probes and the calculation unit, measures the target object. Compared with traditional manual measurement, this device improves the accuracy of size measurement and reduces measurement errors.

Description

Technical Field

[0001] This utility model relates to the field of dimensional inspection technology, and in particular to a dimensional testing device. Background Technology

[0002] In the production and quality inspection of new energy batteries, lithium batteries typically require measurement of their length, width, and height before and after assembly to ensure that the product meets design specifications. Current measurement methods generally rely on manual operation of tools such as calipers and rulers, which suffers from low efficiency, high labor intensity, and operational instability. Furthermore, manual measurement is susceptible to influences from operator experience, methods, and environmental factors, leading to data deviations and making it difficult to meet the requirements for high precision and consistency in testing.

[0003] To address the aforementioned shortcomings, there is an urgent need for a dimensional measuring device that is simple in structure, easy to operate, highly accurate, and widely applicable, in order to improve detection efficiency and reduce human error, thereby enhancing the accuracy and efficiency of measurement during lithium battery dimensional inspection and minimizing the impact of human error. Utility Model Content

[0004] One objective of this invention is to provide a size measuring device that solves the problems of low measurement efficiency, insufficient accuracy, and large human error in the prior art.

[0005] A further objective of this invention is to improve the versatility of the dimension measuring device.

[0006] This utility model provides a dimension measuring device, the dimension measuring device comprising:

[0007] A test base is used to place a square target object to be measured and to limit the position of the target object to be measured;

[0008] The first sliding guide rail is mounted on the test base and arranged along the first horizontal direction;

[0009] The second sliding guide rail is mounted on the test base and arranged along the second horizontal direction, which is perpendicular to the first horizontal direction.

[0010] A first laser probe is slidably mounted on a first sliding guide rail. The first laser probe is used to measure a first vertical distance between itself and the side of the target object extending along the first horizontal direction.

[0011] The second laser probe is slidably mounted on the second sliding guide rail and is used to measure the second vertical distance between itself and the side of the target object extending along the second horizontal direction.

[0012] The measuring assembly includes an interconnected bracket and a third laser probe. The bracket is mounted on the test base, and the third laser probe is located above the target object to be measured for measuring a third vertical distance between the laser probe and the upper surface of the target object.

[0013] The calculation unit, connected to the first laser probe, the second laser probe, and the third laser probe, is used to determine the length of the target object to be measured along the second horizontal direction based on the first vertical distance, to determine the length of the target object to be measured along the first horizontal direction based on the second vertical distance, and to determine the thickness of the target object to be measured along the vertical direction based on the third vertical distance.

[0014] Optionally, it also includes:

[0015] The third sliding guide rail is mounted on the test base and arranged along the first horizontal direction. The third sliding guide rail and the first sliding guide rail are respectively arranged on opposite sides of the test base. The bracket is slidably mounted on the third sliding guide rail.

[0016] Optionally, it also includes:

[0017] A fourth sliding guide rail is arranged vertically and slidably mounted on the third sliding guide rail, and the bracket is slidably mounted on the fourth sliding guide rail.

[0018] Optionally, it also includes:

[0019] The fifth sliding rail is arranged vertically and is slidably mounted on the first sliding rail, and the first laser probe is slidably mounted on the fifth sliding rail.

[0020] Optionally, it also includes:

[0021] The sixth sliding rail is arranged vertically and is slidably mounted on the second sliding rail, and the second laser probe is slidably mounted on the sixth sliding rail.

[0022] Optionally, the bracket is bent and includes a first part and a second part. One end of the first part is slidably connected to the fourth sliding guide rail, and the second part is formed by extending downward from the other end of the first part. The third laser probe is installed at the end of the second part.

[0023] Optionally, the first part and the second part are rotatably connected.

[0024] Optionally, it also includes:

[0025] A limiting baffle is arranged along the second horizontal direction. The limiting baffle is located on the side of the test base opposite to the second sliding guide rail. The limiting baffle abuts against the first side of the target object to be measured, and the third sliding guide rail abuts against the second side of the target object to be measured, thereby limiting the target object to be measured. The first side is perpendicular to the second side.

[0026] Optionally, it also includes:

[0027] An LCD screen, connected to the test base and the computing unit, is used to display the length of the target object to be measured along the first horizontal direction, the length of the target object to be measured along the second horizontal direction, and the thickness of the target object to be measured along the vertical direction.

[0028] Optionally, the target object to be measured is a lithium battery.

[0029] In this invention, a first laser probe is used to measure the first vertical distance between itself and the side of the target object extending along the first horizontal direction; a second laser probe is used to measure the second vertical distance between itself and the side of the target object extending along the second horizontal direction; and a third laser probe is used to measure the third vertical distance between itself and the upper surface of the target object. A calculation unit is connected to the first, second, and third laser probes and is used to receive the measurement data from the first, second, and third laser probes and calculate the length, width, and thickness of the target object. The above technical solution measures the target object by cooperating with the laser probes and the calculation unit. Compared with traditional manual measurement, this device improves the accuracy of dimensional measurement and reduces measurement errors.

[0030] In this invention, the first laser probe is slidably mounted on the first sliding guide rail, and the second laser probe is slidably mounted on the second sliding guide rail. This technical solution, by making the first and second laser probes slidable, allows for adjustment of their positions according to the target object of different sizes, satisfying the measurement needs of target objects of different lengths and widths. It has wide applicability, is simple to operate, and has high measurement efficiency. Furthermore, in this invention, the fourth sliding guide rail is arranged vertically and slidably mounted on the third sliding guide rail, and the bracket is slidably mounted on the fourth sliding guide rail. This technical solution allows the third laser probe mounted on the bracket to be precisely adjusted vertically, adapting to target objects of different thicknesses and improving the versatility of the size measurement device.

[0031] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0032] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0033] Figure 1 This is a schematic structural diagram of a size measuring device according to an embodiment of the present invention;

[0034] Figure 2 This is a schematic structural diagram of a fifth sliding guide rail and a first laser probe according to an embodiment of the present invention;

[0035] Figure 3 This is a schematic structural diagram of a limiting baffle according to an embodiment of the present utility model.

[0036] Figure label:

[0037] 100-Dimensional measuring device, 1-Test base, 2-First sliding guide rail, 3-Second sliding guide rail, 4-Third sliding guide rail, 5-Fourth sliding guide rail, 6-Fifth sliding guide rail, 7-Sixth sliding guide rail, 8-Bracket, 81-First part, 82-Second part, 9-Measuring component, 10-First laser probe, 11-Second laser probe, 12-Third laser probe, 13-LCD display screen, 141-First stop, 142-Second baffle, 143-Third baffle, 144-Fourth baffle, 145-Fifth baffle, 146-Sixth baffle, 147-Seventh baffle, 15-Limiting baffle, 16-Computing center. Detailed Implementation

[0038] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0039] In the description of this utility model, it should be noted that the terms "upper", "lower", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0041] Unless otherwise expressly specified and limited, the terms "connection," "installation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] Unless otherwise specified, all terms (including technical and scientific terms) used in the description of this embodiment have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0043] Figure 1 This is a schematic structural diagram of a size measuring device according to an embodiment of the present invention. Figure 2 This is a schematic structural diagram of the fifth sliding guide rail and the first laser probe according to an embodiment of the present invention. Figure 3 This is a schematic structural diagram of a limiting baffle according to an embodiment of the present utility model.

[0044] like Figures 1 to 3As shown, in one specific embodiment, the size measuring device 100 includes a test base 1, a first sliding guide rail 2, a second sliding guide rail 3, a first laser probe 10, a second laser probe 11, a measuring component 9, and a computing unit 16. The test base 1 is used to place a square-shaped target object to be measured and to limit the target object's position. The first sliding guide rail 2 is mounted on the test base 1 and arranged along a first horizontal direction. The second sliding guide rail 3 is mounted on the test base 1 and arranged along a second horizontal direction, which is perpendicular to the first horizontal direction. The first laser probe 10 is slidably mounted on the first sliding guide rail 2 and is used to measure a first vertical distance between itself and the side of the target object extending along the first horizontal direction. The second laser probe 11 is slidably mounted on the second sliding guide rail 3 and is used to measure a second vertical distance between itself and the side of the target object extending along the second horizontal direction. The measuring component 9 includes an interconnected bracket 8 and a third laser probe 12. The bracket 8 is mounted on the test base 1, and the third laser probe 12 is positioned above the target object to be measured, used to measure the third vertical distance between the target object and its upper surface. The calculation unit 16 is connected to the first laser probe 10, the second laser probe 11, and the third laser probe 12, and is used to determine the length of the target object along a second horizontal direction based on the first vertical distance, the length of the target object along a first horizontal direction based on the second vertical distance, and the thickness of the target object along a vertical direction based on the third vertical distance. In this embodiment, the target object is a lithium battery. In other embodiments, the dimensional measuring device 100 is not limited to lithium batteries; it is also applicable to three-dimensional objects with regular geometric shapes. This embodiment measures the target object by cooperating with the laser probe and the calculation unit 16. Compared with traditional manual measurement, this device improves the accuracy of dimensional measurement and reduces measurement errors.

[0045] This embodiment, by setting the first laser probe 10 and the second laser probe 11 to be slidable, can adjust the position according to the target object to be measured of different sizes, which can meet the measurement of the size of target objects of different lengths and widths. It has wide applicability, is simple to operate, and has high measurement efficiency.

[0046] In some embodiments, such as Figure 1As shown, the dimensional measuring device 100 also includes a third sliding guide rail 4, which is mounted on the test base 1 and arranged along the first horizontal direction. The third sliding guide rail 4 and the first sliding guide rail 2 are respectively arranged on opposite sides of the test base 1, and the bracket 8 is slidably mounted on the third sliding guide rail 4. This can be understood as follows: on the one hand, the bracket 8 can move in the first horizontal direction, thereby adjusting the position of the third laser probe 12 in the first horizontal direction, which can meet the measurement needs of target objects of different sizes. On the other hand, the third laser probe 12 can measure the thickness of the target object at different locations, and the thickness of the target object can be determined based on multiple measurement results, thereby reducing measurement errors.

[0047] In some embodiments, the two ends of the second sliding guide rail 3 abut against the side of the first sliding guide rail 2 and the side of the third sliding guide rail 4, respectively, which can limit the second laser probe 11 and prevent the second laser probe 11 from sliding out of the second sliding guide rail 3. In another embodiment, the size measuring device 100 further includes a first stop 141, such as Figure 1 As shown, the first stop 141 is fixedly installed on the end of the second sliding guide rail 3 away from the first sliding guide rail 3 by screws, which is used to limit the sliding stroke of the second laser probe 11 on the second sliding guide rail 3 and prevent accidental disengagement.

[0048] In some embodiments, the calculation unit 16 stores a first preset distance between the first laser probe 10 and the third sliding guide rail 4. After the calculation unit 16 obtains the first vertical distance, it calculates the length of the target object along the second horizontal direction based on the first vertical distance and the first preset distance. Specifically, the difference between the first preset distance and the first vertical distance is the length of the target object along the second horizontal direction.

[0049] The calculation unit 16 also stores a second preset distance between the second laser probe 11 and the side of the test base 1 furthest from the second sliding guide rail. After obtaining the second vertical distance, the calculation unit 16 calculates the length of the target object along the first horizontal direction based on the second vertical distance and the second preset distance. Specifically, the difference between the second preset distance and the second vertical distance is the length of the target object along the first horizontal direction.

[0050] The calculation unit 16 also stores a third preset distance between the third laser probe 12 and the upper surface of the test base 1. After the calculation unit 16 obtains the third vertical distance, it calculates the thickness of the target object along the vertical direction based on the third vertical distance and the third preset distance. Specifically, the difference between the third preset distance and the third vertical distance is the length of the target object along the vertical direction.

[0051] In some embodiments, such as Figure 1As shown, the dimensional measuring device 100 also includes a fourth sliding guide rail 5, which is arranged vertically and slidably mounted on the third sliding guide rail 4. A bracket 8 is slidably mounted on the fourth sliding guide rail 5. This can be understood as the fourth sliding guide rail 5 being able to slide relative to the third sliding guide rail 4 in a first horizontal direction, and the bracket 8 being able to move relative to the fourth sliding guide rail 5 in a vertical direction. This allows for independent adjustment of the bracket 8 and its connected third laser probe 12 in the first horizontal and vertical directions, meeting the measurement requirements for targets of different sizes, and simultaneously enabling rapid alignment of the third laser probe 12 with the upper surface of the target object.

[0052] In some embodiments, such as Figure 1 and Figure 2 As shown, the size measuring device 100 also includes a fifth sliding guide rail 6, which is arranged vertically and slidably mounted on the first sliding guide rail 2. The first laser probe 10 is slidably mounted on the fifth sliding guide rail 6. It can be understood that the fifth sliding guide rail 6 can slide relative to the first sliding guide rail 2 in a first horizontal direction, and the first laser probe 10 can slide relative to the fifth sliding guide rail 6 in a vertical direction. This enables independent adjustment of the first laser probe 10 in the first horizontal and vertical directions, meeting the measurement needs of targets of different sizes, and simultaneously enabling rapid alignment of the first laser probe 10 with the side of the target object extending in the first horizontal direction.

[0053] In some embodiments, such as Figure 1 As shown, the size measuring device 100 also includes a sixth sliding guide rail 7, arranged vertically and slidably mounted on the second sliding guide rail 3. The second laser probe 11 is slidably mounted on the sixth sliding guide rail 7. It can be understood that the sixth sliding guide rail 7 can slide relative to the second sliding guide rail 3 in a second horizontal direction, and the second laser probe 11 can slide relative to the sixth sliding guide rail 7 in a vertical direction. This enables independent adjustment of the second laser probe 11 in the second horizontal and vertical directions, meeting the measurement requirements for targets of different sizes, and simultaneously enabling rapid alignment of the second laser probe 11 with the side of the target object extending along the second horizontal direction.

[0054] Specifically, in a preferred embodiment, the first laser measuring probe 10 is detachably connected to the fifth sliding guide rail 6, the second laser measuring probe 11 is detachably connected to the sixth sliding guide rail 7, and the third laser measuring probe 12 is detachably connected to the bracket 8. This allows for quick replacement of the first laser measuring probe 10, the second laser measuring probe 11, and the third laser measuring probe 12, and allows for the replacement of laser probes with different precision requirements.

[0055] Specifically, in a preferred embodiment, the size measuring device 100 further includes a second stop 142 and a third stop 143, such as Figure 1 As shown, the second stop 142 and the third stop 143 are fixedly installed at both ends of the first sliding guide rail 2 by screws, which are used to limit the sliding stroke of the first laser probe 10 on the first sliding guide rail 2 and prevent accidental disengagement.

[0056] Specifically, in a preferred embodiment, such as Figure 1 As shown, the size measuring device 100 also includes a fourth stop 144, which is fixedly installed on the end of the third sliding guide rail 4 away from the second sliding guide rail 3 by screws, and is used to limit the sliding stroke of the bracket 8 on the third sliding guide rail 4 and prevent accidental disengagement.

[0057] Specifically, in a preferred embodiment, such as Figure 1 As shown, the size measuring device 100 also includes a fifth stop 145, which is fixedly installed on the free end of the fourth sliding guide rail 5 by screws, and is used to limit the sliding stroke of the bracket 8 on the fourth sliding guide rail 5 and prevent accidental disengagement.

[0058] Specifically, in a preferred embodiment, such as Figure 1 and 2 As shown, it also includes a sixth stop 146, which is fixedly installed on the free end of the fifth sliding guide rail 6 by screws, and is used to limit the sliding stroke of the first laser probe 10 on the fifth sliding guide rail 5 and prevent accidental disengagement.

[0059] Specifically, in a preferred embodiment, such as Figure 1 As shown, it also includes a seventh stop 147, which is fixedly installed on the free end of the sixth sliding guide rail 7 by screws, and is used to limit the sliding stroke of the second laser probe 11 on the sixth sliding guide rail 7 and prevent accidental disengagement.

[0060] In some embodiments, the bracket 8 is bent and includes a first portion 81 and a second portion 82. One end of the first portion 81 is slidably connected to the fourth sliding guide rail 5, and the second portion 82 extends downward from the other end of the first portion 81. A third laser probe 12 is mounted on the end of the second portion 82. The third laser probe 12 is positioned directly above the target object to be measured.

[0061] In some embodiments, the first part 81 and the second part 82 are rotatably connected. The connection structure between the first part 81 and the second part 82 is preferably a pin type or a hinge type, and the bending angle between the first part 81 and the second part 82 can be adjusted arbitrarily within the range of 0° to 270°, which improves the convenience and stability of alignment for thickness measurement of the target object.

[0062] In some embodiments, such as Figure 3As shown, the dimensional measuring device 100 also includes a limiting baffle 15, arranged along the second horizontal direction. The limiting baffle 15 is located on the side of the test base 1 opposite to the second sliding guide rail 3. The limiting baffle 15 abuts against the first side of the target object to be measured, and the third sliding guide rail 4 abuts against the second side of the target object to be measured, thereby limiting the target object to be measured. The first side is perpendicular to the second side. It can be understood that in this embodiment, the limiting baffle 15 and the third sliding guide rail 4 form limiting edges on both sides in two orthogonal directions, constraining the position of the target object to be measured on the test base 1 to determine the measurement reference point of the target object to be measured, which can improve the measurement accuracy.

[0063] In this embodiment, the test base 1 limits the target object to form a stable placement reference and alignment reference, thereby improving the stability and accuracy of the measurement of the target object.

[0064] Specifically, in a preferred embodiment, the contact surface between the limiting baffle 15 and the target object to be measured is covered with a flexible buffer layer to prevent scratching or crushing of the surface of the target object to be measured during the limiting process.

[0065] In some embodiments, such as Figure 1 As shown, the dimension measuring device 100 also includes a liquid crystal display screen 13, which is mounted on the test base 1 and connected to the calculation unit 16. The liquid crystal display screen 13 displays the length of the target object to be measured along a first horizontal direction, the length of the target object to be measured along a second horizontal direction, and the thickness of the target object to be measured along a vertical direction. The liquid crystal display screen 13 is used to visually display the length, width, and thickness of the target object output by the calculation unit 16.

[0066] Specifically, in a preferred embodiment, the size measuring device 100 further includes a memory card, which is disposed on the control board of the LCD display 13 and connected to the computing unit 16. The memory card can continuously store measurement data, and the operator can query historical stored data through the LCD display 13.

[0067] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A size measuring device, characterized in that, include: A test base is used to place a square target object to be measured and to limit the position of the target object to be measured. The first sliding guide rail is mounted on the test base and arranged along the first horizontal direction; The second sliding guide rail is mounted on the test base and arranged along the second horizontal direction, which is perpendicular to the first horizontal direction. A first laser probe is slidably mounted on a first sliding guide rail. The first laser probe is used to measure a first vertical distance between itself and the side of the target object extending along the first horizontal direction. The second laser probe is slidably mounted on the second sliding guide rail and is used to measure the second vertical distance between itself and the side of the target object extending along the second horizontal direction. The measuring assembly includes an interconnected bracket and a third laser probe. The bracket is mounted on the test base, and the third laser probe is located above the target object to be measured for measuring a third vertical distance between the laser probe and the upper surface of the target object. The calculation unit, connected to the first laser probe, the second laser probe, and the third laser probe, is used to determine the length of the target object to be measured along the second horizontal direction based on the first vertical distance, to determine the length of the target object to be measured along the first horizontal direction based on the second vertical distance, and to determine the thickness of the target object to be measured along the vertical direction based on the third vertical distance.

2. The size measuring device according to claim 1, characterized in that, Also includes: The third sliding guide rail is mounted on the test base and arranged along the first horizontal direction. The third sliding guide rail and the first sliding guide rail are respectively arranged on opposite sides of the test base. The bracket is slidably mounted on the third sliding guide rail.

3. The size measuring device according to claim 2, characterized in that, Also includes: A fourth sliding guide rail is arranged vertically and slidably mounted on the third sliding guide rail, and the bracket is slidably mounted on the fourth sliding guide rail.

4. The size measuring device according to claim 1, characterized in that, Also includes: The fifth sliding rail is arranged vertically and is slidably mounted on the first sliding rail, and the first laser probe is slidably mounted on the fifth sliding rail.

5. The size measuring device according to claim 1, characterized in that, Also includes: The sixth sliding rail is arranged vertically and is slidably mounted on the second sliding rail, and the second laser probe is slidably mounted on the sixth sliding rail.

6. The size measuring device according to claim 3, characterized in that, The bracket is bent and includes a first part and a second part. One end of the first part is slidably connected to the fourth sliding guide rail. The second part is formed by extending downward from the other end of the first part. The third laser probe is installed at the end of the second part.

7. The size measuring device according to claim 6, characterized in that, The first part and the second part are rotatably connected.

8. The size measuring device according to claim 2 or 3, characterized in that, Also includes: A limiting baffle is arranged along the second horizontal direction. The limiting baffle is located on the side of the test base opposite to the second sliding guide rail. The limiting baffle abuts against the first side of the target object to be measured, and the third sliding guide rail abuts against the second side of the target object to be measured, thereby limiting the target object to be measured. The first side is perpendicular to the second side.

9. The size measuring device according to claim 8, characterized in that, Also includes: An LCD screen, connected to the test base and the computing unit, is used to display the length of the target object to be measured along the first horizontal direction, the length of the target object to be measured along the second horizontal direction, and the thickness of the target object to be measured along the vertical direction.

10. The size measuring device according to claim 9, characterized in that, The target object to be measured is a lithium battery.

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