A measuring caliper

Abstract

The application relates to the technical field of size measuring devices, and discloses a measuring caliper, which comprises two distance measuring bodies, one end of the two distance measuring bodies is connected, the length direction of one of the distance measuring bodies is a first direction, the length direction of the other distance measuring body is a second direction, and the first direction and the second direction are arranged in a non-parallel mode; two display instruments are arranged on the surfaces of the two distance measuring bodies respectively, the display instruments are suitable for moving along the length directions of the distance measuring bodies, and are suitable for displaying digital information of real-time distances from the reference ends of the distance measuring bodies. The display instruments of the application are movably arranged on the surfaces of the distance measuring bodies, the display instruments can be used for measuring the sizes of products of different specifications, and the use cost is reduced; the two distance measuring bodies can be used for simultaneously measuring the sizes of a to-be-measured area in different directions, the difficulty of measurement operation is reduced, and the measurement efficiency is improved; the display instruments can display the digital information of the moving distances, the measurement personnel can conveniently observe, and the measurement accuracy is improved.

Description

Technical Field

[0001] This application relates to the field of size measuring device technology, specifically to a measuring caliper. Background Technology

[0002] After the battery cells undergo pad printing, an initial inspection is required, which includes dimensional measurements of the pad-printed and inkjet-printed contents.

[0003] In the existing technology, due to the different sizes of different battery cells and the different specifications of finished battery products, the pad printing and inkjet printing areas are different. This requires the development of corresponding size jigs for different product specifications, which increases the cost of use. When using conventional measuring rulers for measurement, there are problems such as difficult measurement operation and inaccurate readings, which affect the measurement accuracy of the first inspection. Utility Model Content

[0004] In view of this, this application provides a measuring caliper to solve the problems of high cost, difficult operation and poor accuracy in measuring pad printing and inkjet printing areas.

[0005] An embodiment of this application provides a measuring caliper, comprising:

[0006] Two ranging bodies are connected at one end. The length direction of one ranging body is a first direction, and the length direction of the other ranging body is a second direction. The first direction and the second direction are not parallel.

[0007] Two displays are respectively disposed on the surfaces of the two ranging bodies. The displays are adapted to move along the length direction of the ranging bodies and to display digital information of the real-time distance to the reference end of the ranging bodies.

[0008] Beneficial effects: The display can be movably mounted on the surface of the measuring body, enabling the measurement of products of different specifications and reducing operating costs; the two measuring bodies working together can simultaneously measure the size of the area to be measured in different directions, reducing the difficulty of measurement operations and improving measurement efficiency; the display can show digital information of its moving distance, making it convenient for measurement personnel to observe and improving measurement accuracy.

[0009] Optionally, the display is provided with a guide portion, which is adapted to conform to the edge contour of the area to be measured.

[0010] Beneficial effects: The guide protrudes from the display, and during measurement, the guide is used to position the display by fitting it against the area to be measured, which facilitates measurement and improves measurement accuracy.

[0011] Optionally, a connecting part is provided between the two ranging bodies, and the two ranging bodies are rotatably connected through the connecting part.

[0012] Beneficial effects: The rotatable connection between the two measuring bodies allows for adjustment of the included angle between them, expanding the applicability of the measuring caliper and reducing usage costs.

[0013] Optionally, an angle measuring device is provided on the connecting part, which is suitable for measuring the included angle between the two distance measuring bodies.

[0014] Beneficial effects: The angle measuring device displays the included angle between the two measuring bodies in real time, thus enabling the measurement of product angles. Simultaneously, the angle measuring device, in conjunction with the two guide parts, can measure the edge angle of the area to be measured, expanding the applicability of the measuring calipers.

[0015] Optionally, the connecting part includes a protrusion, which is fixed to the surface of one of the ranging bodies, and the surface of the other ranging body is provided with a mounting hole, through which the protrusion passes and is adapted to the mounting hole.

[0016] Beneficial effects: The combination of mounting holes and protruding posts allows for relative rotation between the two measuring bodies, and the connection structure is simple, reducing the production cost of the measuring calipers.

[0017] Optionally, a limiting member is provided between the display and the ranging body, the limiting member being adapted to restrict the movement of the display along the length direction of the ranging body.

[0018] Beneficial effect: The limiting component is used to restrict the movement direction of the display instrument, preventing the display instrument from deviating and affecting the accuracy of the measurement.

[0019] Optionally, the limiting member includes a matching protrusion and a recess, wherein one of the display and the ranging body is provided with the protrusion and the other is provided with the recess.

[0020] Beneficial effects: The combination of protruding and recessed parts results in a simple structure and convenient use.

[0021] Optionally, the two guide portions are adapted to be disposed on different horizontal planes so that the two guide portions are staggered in the vertical direction.

[0022] Beneficial effects: The staggered design of the two guide parts avoids conflict when the two guide parts move in different directions, allowing the guide parts to fit the contour of the area to be measured normally, making the measurement operation simple and convenient.

[0023] Optionally, a scale portion is provided on the surface of the ranging body.

[0024] Beneficial effects: The scale section works in conjunction with the display to determine the working status of the display when it is damaged or has a large reading error, thus enabling timely maintenance of the display.

[0025] Optionally, the display is one of a grating-type length display, a laser interferometer-type length display, or a capacitive grating-type length display.

[0026] Beneficial effects: The display uses the above structure, which makes it easy to use and provides high measurement accuracy. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram illustrating the use of the measuring calipers according to an embodiment of this application;

[0029] Figure 2 This is a schematic diagram illustrating the connection relationship between the two ranging entities in an embodiment of this application;

[0030] Figure 3 This is a schematic diagram showing the connection relationship between the display and the ranging body in an embodiment of this application;

[0031] Figure 4 This is a schematic diagram showing the positional relationship between the angle measuring device and the distance measuring body in an embodiment of this application.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Distance measuring body; 2. Display instrument; 201. Display screen; 202. Carrier component; 3. Guide part; 4. Connecting part; 401. Protruding post; 402. Mounting hole; 5. Angle measuring instrument; 501. Pointer; 502. Angle scale; 6. Limiting part; 601. Protrusion; 602. Recess; 7. Scale part. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] After pad printing, battery cells require initial inspection, which includes dimensional measurement of the pad-printed and inkjet-printed areas (hereinafter referred to as the test areas). Currently, the measurement method involves developing corresponding dimensional fixtures for the pad-printed and inkjet-printed locations. However, different battery cells have different dimensions and different safety certifications for finished batteries, resulting in different pad-printed and inkjet-printed areas. While the markings on the dimensional fixtures are unique and matched one-to-one with the battery cell model, multiple models cannot share the same fixtures, leading to the development of numerous corresponding dimensional fixtures and significantly increasing the cost of measurement fixtures. Using a conventional ruler for measurement presents difficulties in operation and low accuracy, ultimately affecting measurement efficiency.

[0036] To solve the above problem, please refer to Figures 1-4 This application provides a measuring caliper, including two measuring bodies 1 and two display instruments 2. The two measuring bodies 1 are connected at one end, with the length direction of one measuring body 1 being a first direction and the length direction of the other measuring body 1 being a second direction. The first and second directions are not parallel. The two display instruments 2 are respectively disposed on the surface of the measuring bodies 1, and the display instruments 2 are adapted to move along the length direction of the measuring bodies 1 and to display digital information of the real-time distance to the reference end of the measuring body 1.

[0037] In this embodiment, the measuring body 1 is preferably a plate-shaped structure with a certain length. The first direction and the second direction are both the length directions of the plate-shaped structure. One end of the two measuring bodies 1 is connected so that the two measuring bodies 1 cannot be separated. Moreover, the measuring directions of the two measuring bodies 1 are not parallel, so that the measuring caliper can display the measurement dimensions in two directions, which facilitates the measurement operation of the area to be measured.

[0038] A display 2 is provided on each ranging body 1. The display 2 can move along the length direction of the ranging body 1. A reference end is provided on the ranging body 1, which is used as the zero point position on the ranging body 1. Another reference end is provided on the display 2. When the display 2 moves relative to the ranging body 1, the reference end on the display 2 moves accordingly, and can digitally display the distance between the reference end of the display 2 and the reference end of the ranging body 1.

[0039] In this way, when measuring the size of the area to be measured, the reference end of the display instrument 2 is moved to be flush with the outline edge of the area to be measured. At this time, the number displayed by the display instrument 2 is the size of the area to be measured, which makes the entire size measurement operation simple, convenient and highly accurate.

[0040] Specifically, the display device 2 includes a display screen 201 and a carrier component 202. The carrier component 202 and the ranging body 1 are slidably coupled. A ranging unit is provided inside the carrier component 202. The ranging unit realizes the ranging function and feeds back the ranging result to the display screen 201, so that the display screen 201 displays the measurement data in a digital direction, which is convenient for the measurement personnel to observe and read, and improves the accuracy of the measurement.

[0041] When the above-mentioned setting method is adopted, the display 2 can be movably set on the surface of the measuring body 1. The display 2 can be used to measure the size of products of different specifications, reducing the cost of use; the two measuring bodies 1 can work together to measure the size of the area to be measured in different directions at the same time, reducing the difficulty of measurement operation and improving measurement efficiency; the display 2 can display the digital information of its moving distance, which is convenient for the measuring personnel to observe and improves the measurement accuracy.

[0042] Understandably, the aforementioned measuring calipers can also measure the dimensions of battery cells or batteries, or the dimensions of other products that require inspection and control in two or fewer directions (including two).

[0043] Optionally, refer to Figure 1 , Figure 2 The display 2 is provided with a guide part 3, which is adapted to fit the edge contour of the area to be measured.

[0044] In this embodiment, the guide portion 3 extends along a direction perpendicular to the movement direction of the display 2. The display 2 has a reference end, and one end of the guide portion 3 is fixedly connected to and aligned with the reference end of the display 2. When the display 2 is moved, the guide portion 3 moves with it and can be used as a pointer. When the projection of the guide portion 3 onto the battery cell coincides with or nearly coincides with the edge of the area to be measured, the size displayed on the display 2 is the edge size of the area to be measured. Thus, by using the guide portion 3 to position the display 2 against the area to be measured during measurement, measurement is facilitated while improving accuracy.

[0045] Among them, the guide part 3 is a long plate or long rod protruding from the surface of the display 2.

[0046] Furthermore, the guide section 3 is provided with scale lines along its extension direction, and an indicator block protruding from the surface of the guide section 3 is slidably connected to the guide section 3. When the area to be measured is a rectangular area, by using the cooperation of the two guide sections 3 and the two indicator blocks, the projection of the four on the cell can fit the four sides of the area to be measured. Through simple calculation, the size of the area to be measured can be directly obtained, improving the ease of measurement operation.

[0047] Optionally, refer to Figure 1 , Figure 2A connecting part 4 is provided between the two ranging bodies 1, and the two ranging bodies 1 are rotatably connected through the connecting part 4.

[0048] In this embodiment, the connecting part 4 is used to connect one end of the two measuring bodies 1, and to enable the two measuring bodies 1 to be rotatably connected. In this way, the included angle between the two measuring bodies 1 can be adjusted and changed. When the area to be measured is irregular in shape, the length of the area to be measured can be ensured by adjusting the position of the two measuring bodies 1, thereby expanding the applicable range of the measuring caliper and reducing the cost of use.

[0049] Optionally, refer to Figure 4 An angle measuring device 5 is provided on the connecting part 4. The angle measuring device 5 is suitable for measuring the included angle between the two distance measuring bodies 1.

[0050] In this embodiment, the angle measuring device 5 is disposed on the connecting part 4. When the relative angle between the two measuring bodies 1 changes, the angle measuring device 5 displays the angle between the two measuring bodies 1 in real time, thereby enabling the measurement of the product's angle. At the same time, the angle measuring device 5, in conjunction with the two guide parts 3, can measure the edge angle of the area to be measured, expanding the applicability of the measuring caliper.

[0051] Specifically, the guide section 3 on the two displays 2 is extended, and the angle generated by the projection of the two guide sections 3 on the battery cell is equal to the angle between the two measuring bodies 1. By using the angle between the two measuring bodies 1, the angle at different positions in the area to be measured can be measured.

[0052] Optionally, refer to Figure 2 The connecting part 4 includes a protrusion 401, which is fixed to the surface of one ranging body 1. The surface of the other ranging body 1 is provided with a mounting hole 402, and the protrusion 401 passes through the mounting hole 402 and is adapted to the mounting hole 402.

[0053] In this embodiment, the protruding post 401 is a columnar structure protruding from the surface of the measuring body 1. The protruding post 401 passes through the mounting hole 402 of another measuring body 1, which enables the other measuring body 1 to rotate around the protruding post 401 as the center, thereby realizing relative rotation between the two measuring bodies 1. Moreover, the connecting part 4 has a simple structure, reducing the production cost of the measuring caliper.

[0054] Furthermore, an anti-detachment protrusion is installed on the protrusion 401. After the protrusion 401 passes through the mounting hole 402, the anti-detachment protrusion is installed after extending out from the other side of the mounting hole 402 to prevent the two ranging bodies 1 from separating.

[0055] Based on the above, and considering the specific structure of the connecting part 4, when an angle measuring device 5 is provided on the connecting part 4, the angle measuring device 5 includes a pointer 501 and an angle scale 502. The pointer 501 is fixed to the top surface of the protrusion 401, and the angle scale 502 is arranged on the surface of the ranging body 1, which is provided with the mounting hole 402. In this way, using the ranging body 1 with the pointer 501 as a reference, when rotating another ranging body 1, the included angle between the two ranging bodies 1 can be displayed in real time by observing the position of the pointer 501 pointing to the angle scale 502.

[0056] Optionally, refer to Figure 1 , Figure 3 A limiting element 6 is provided between the display 2 and the ranging body 1. The limiting element 6 is adapted to restrict the movement of the display 2 along the length direction of the ranging body 1.

[0057] In this embodiment, the display 2 is slidably engaged with the ranging body 1 through the limiting member 6. The limiting member 6 is used to restrict the movement direction of the display 2 to prevent the display 2 from deviating from its movement, which would cause inaccurate readings and affect the accuracy of the measurement.

[0058] Optionally, refer to Figure 3 The limiting member 6 includes a matching protrusion 601 and a recess 602. One of the display instrument 2 and the ranging body 1 is provided with the protrusion 601 and the other is provided with the recess 602.

[0059] In this embodiment, the limiting member 6 adopts a combination of a protrusion 601 and a recess 602, which is simple in structure and easy to use. The following is a detailed description using an example where the ranging body 1 has a protrusion 601 and the display 2 has a recess 602.

[0060] The protrusion 601 is a slide rail protruding from the surface of the ranging body 1, and the recess 602 is a groove recessed into the surface of the carrier component 202 of the display 2. By cooperating with the slide rail and the groove, when the display 2 moves along the length direction of the ranging body 1, the display 2 cannot be laterally misaligned relative to the length direction, thereby avoiding the problem of reading error of the display 2.

[0061] Preferably, the slide rail and the groove adopt a dovetail groove mating structure, or other slide rail and groove mating structure, so that the groove cannot detach from the slide rail in the direction perpendicular to the slide rail, which facilitates the measurement of dimensions and the storage of measuring calipers.

[0062] Optionally, refer to Figure 1 , Figure 4 The two guide parts 3 are suitable for being set on different horizontal planes so that the two guide parts 3 are staggered in the vertical direction.

[0063] In this embodiment, the two guide parts 3 are set on different horizontal planes along the thickness direction of the measuring caliper, so that the two guide parts 3 are staggered to avoid conflict when the two guide parts 3 move in different directions, so that the guide parts 3 can fit normally with the contour of the area to be measured, and the measurement operation can be performed simply and conveniently.

[0064] Optionally, refer to Figure 1 , Figure 4 A scale section 7 is provided on the surface of the ranging body 1.

[0065] In this embodiment, the scale section 7 is a length scale laid on the surface of the distance measuring body 1. The scale section 7 and the display instrument 2 are set together so that when the display instrument 2 is damaged or the reading error is large, the working status of the display instrument 2 can be judged according to the scale section 7, so as to maintain the display instrument 2 in a timely manner.

[0066] Optionally, the display 2 is one of a grating-type length display, a laser interferometer-type length display, or a capacitive grating-type length display.

[0067] In this embodiment, the display 2 adopts the above-described structure, which is simple to use and has high measurement accuracy.

[0068] For example, display 2 uses a grating-type length display. The grating ruler utilizes the interference effect of grating fringes and a photoelectric sensor to detect changes in light intensity and calculate the displacement. The grating ruler and reading head are installed together to convert the signal into digital information, which is then displayed on display screen 201.

[0069] Display 2 uses a laser interferometer length display. It uses laser ranging to emit laser pulses, measures the time difference or phase difference of the reflected light, and calculates the distance. The distance signal is then converted into digital information and displayed on the display screen 201.

[0070] Although embodiments of this application have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of this application, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A measuring caliper, characterized in that, include: Two ranging bodies (1) are connected at one end. The length direction of one ranging body (1) is a first direction, and the length direction of the other ranging body (1) is a second direction. The first direction and the second direction are not parallel. Two displays (2) are respectively disposed on the surfaces of the two ranging bodies (1). The displays (2) are adapted to move along the length direction of the ranging body (1) and to display digital information of the real-time distance to the reference end of the ranging body (1).

2. The measuring caliper according to claim 1, characterized in that, The display (2) is provided with a guide (3), which is adapted to fit the edge contour of the area to be measured.

3. The measuring caliper according to claim 1, characterized in that, A connecting part (4) is provided between the two ranging bodies (1), and the two ranging bodies (1) are rotatably connected through the connecting part (4).

4. The measuring caliper according to claim 3, characterized in that, An angle measuring device (5) is provided on the connecting part (4), and the angle measuring device (5) is suitable for measuring the included angle between the two distance measuring bodies (1).

5. The measuring caliper according to claim 3, characterized in that, The connecting part (4) includes a protrusion (401), which is fixed to the surface of one of the ranging bodies (1). The surface of the other ranging body (1) is provided with a mounting hole (402), and the protrusion (401) passes through the mounting hole (402) and is adapted to the mounting hole (402).

6. The measuring caliper according to any one of claims 1-5, characterized in that, A limiting member (6) is provided between the display (2) and the ranging body (1), and the limiting member (6) is adapted to restrict the movement of the display (2) along the length direction of the ranging body (1).

7. The measuring caliper according to claim 6, characterized in that, The limiting member (6) includes a matching protrusion (601) and a recess (602). One of the display (2) and the ranging body (1) is provided with the protrusion (601), and the other is provided with the recess (602).

8. The measuring caliper according to claim 2, characterized in that, The two guide parts (3) are adapted to be set on different horizontal planes so that the two guide parts (3) are staggered in the vertical direction.

9. The measuring caliper according to any one of claims 1-5, characterized in that, The distance measuring body (1) has a scale section (7) on its surface.

10. The measuring caliper according to any one of claims 1-5, characterized in that, The display (2) is one of a grating length display, a laser interference length display, or a capacitive grating length display.

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