Measuring equipment

Abstract

The utility model discloses a measuring device which comprises a rack, a first range finder and a second range finder, and the rack is used for bearing a roll core to be measured; the first range finder is connected with the rack, and the first range finder is used for measuring the distance L1 between the first point to be measured and the first range finder; the second range finder is connected with the rack and used for measuring the distance L2 between the second point to be measured and the second range finder. Compared with the prior art, through the first range finder and the second range finder, the diameter of the roll core can be measured under the condition that the roll core is not contacted, errors caused by manual measurement by using a vernier caliper are eliminated, the data accuracy is high, the diameter data of the roll core can be accurately obtained, the response is quick, the use is convenient, the operation is easy, and the maintenance is simple.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery technology field especially relates to a measuring equipment. BACKGROUND

[0002] In the battery production process, especially in large-scale production, it is very critical to ensure the consistency of the diameter of each battery roll core, because the consistency of the diameter of the battery roll core is directly related to the consistency of the battery performance. And the battery roll core is fixed in the shell volume, if the roll core size does not meet the standard, the roll core cannot or is difficult to enter the shell in the mass production process, resulting in the increase of the defective rate, which increases the manufacturing cost. At this time, engineers need to measure the diameter data of the roll core to ensure that the roll core meets the production standard.

[0003] However, when measuring the diameter of the roll core now, the method usually adopted is to use a vernier caliper to clamp the roll core and read the diameter data of the roll core. The problem of this is that the vernier caliper is a contact type measuring method, and the material of the battery roll core is soft, the measuring force of the staff is different, which will lead to the measurement result being different from person to person, there is a big error, and if the force is too much, it will also cause the roll core to deform, affecting the quality of the roll core. UTILITY MODEL CONTENT

[0004] One purpose of the utility model is to provide a kind of measuring equipment, it aims at solving the technical problem that roll core is not accurately measured.

[0005] To achieve the above purpose, a kind of scheme provided by the utility model is: a kind of measuring equipment, the measuring equipment includes rack, first range finder and second range finder, rack is used to support the roll core to be measured;First range finder is connected with the rack, and the first range finder is used to measure the distance L1 of the first measuring point from it;Second range finder is connected with the rack, and the second range finder is used to measure the distance L2 of the second measuring point from it.

[0006] Optionally, the measuring equipment includes displacement assembly, the displacement assembly is connected with the rack, and is arranged between the first range finder and the second range finder, and the displacement assembly is used to support the roll core and drive the roll core to move along its axial direction.

[0007] Optionally, the displacement assembly includes driving part, slide rail and sliding block, the driving part is connected with the rack, the slide rail is connected with the rack, and is arranged between the first range finder and the second range finder, the sliding block is connected with the slide rail in sliding mode, the output end of the driving part is connected with the sliding block, and the sliding block is used to support the roll core.

[0008] Optionally, the displacement assembly further comprises a plurality of support rods, each of the plurality of support rods being connected with the slide rail and the rack and being arranged along a length direction of the slide rail.

[0009] Optionally, the measuring device further comprises a clamp assembly, the clamp assembly being connected with the output end of the displacement assembly, and the clamp assembly being configured to carry the winding core.

[0010] Optionally, the clamp assembly is provided with a circular arc surface configured to wrap the winding core.

[0011] Optionally, the clamp assembly comprises a fixing seat, a carrying seat and a fixing member, the fixing seat being connected with the output end of the displacement assembly, the carrying seat being provided with the circular arc surface, and the fixing member being detachably connected with the fixing seat and the carrying seat.

[0012] Optionally, the fixing seat is provided with a mounting groove, and the carrying seat is assembled in the mounting groove.

[0013] Optionally, the clamp assembly comprises a base, a first fixing ring and a second fixing ring, the base being connected with the output end of the displacement assembly, the first fixing ring and the second fixing ring being arranged at opposite ends of the base, and the first fixing ring and the second fixing ring being configured to jointly suspend the winding core.

[0014] Optionally, at least one of the first fixing ring and the second fixing ring is slidingly connected with the base.

[0015] The application provides a measuring device, which comprises a rack, a first distance meter and a second distance meter, the rack being configured to carry a winding core to be measured, the first distance meter being connected with the rack and being configured to measure a distance L1 from a first measurement point, and the second distance meter being connected with the rack and being configured to measure a distance L2 from a second measurement point. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative labor.

[0017] Figure 1 is a structural schematic view of the measuring equipment provided by the utility model;

[0018] Figure 2 is another structural schematic view of the measuring equipment provided by the utility model;

[0019] Figure 3 is a structural schematic view of the clamp assembly provided by the utility model;

[0020] Figure 4 is another structural schematic view of the clamp assembly provided by the utility model;

[0021] Figure 5 is another structural schematic view of the measuring equipment provided by the utility model.

[0022] Explanation of reference numerals: 10, rack; 20, first distance meter; 30, second distance meter; 40, displacement assembly; 50, clamp assembly; 60, winding core; 401, driving piece; 402, sliding rail; 403, sliding block; 404, support rod; 501, circular arc surface; 502, fixed seat; 503, bearing seat; 504, fixing piece; 505, base; 506, first fixing ring; 507, second fixing ring; 5021, mounting groove. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figure 1 The utility model embodiment provides a kind of measuring equipment, including rack 10, first distance meter 20 and second distance meter 30, rack 10 is used to carry the winding core 60 to be measured;First distance meter 20 is connected with rack 10, and first distance meter 20 is used to measure the distance L1 of first to be measured point from it;Second distance meter 30 is connected with rack 10, and second distance meter 30 is used to measure the distance L2 of second to be measured point from it.

[0025] In actual application, the surface of the winding core 60 has a first to-be-measured point and a second to-be-measured point in the radial direction thereof, the first to-be-measured point and the second to-be-measured point should be located on the same circle, the rack 10 is connected with a first distance meter 20 and a second distance meter 30, the first distance meter 20 and the second distance meter 30 are arranged at a preset distance L3, the winding core 60 is placed between the first distance meter 20 and the second distance meter 30, the first distance meter 20 emits a measuring light to the first to-be-measured point of the winding core 60, and the straight-line distance L1 between the first distance meter 20 and the first to-be-measured point is measured, the second distance meter 30 emits a measuring light to the second to-be-measured point of the winding core 60, and the straight-line distance L2 between the second distance meter 30 and the second to-be-measured point is measured, and the distance between the first to-be-measured point and the second to-be-measured point, that is, the diameter of the winding core 60, is obtained by calculating L3-L2-L1. The first distance meter 20 and the second distance meter 30 can adopt a structure such as a mechanism displacement sensor.

[0026] Compared with the prior art, the first distance meter 20 and the second distance meter 30 can measure the diameter of the winding core 60 without contacting the winding core 60, exclude the error caused by manual measurement using a vernier caliper, have high data accuracy, can accurately obtain the diameter data of the winding core 60, have fast response, are convenient to use, easy to operate, and simple to maintain.

[0027] It should be noted that the winding core 60 is taken as an embodiment for description.

[0028] Please refer to Figure 1 The measuring device further includes a displacement assembly 40, the displacement assembly 40 is connected with the rack 10 and arranged between the first distance meter 20 and the second distance meter 30, and the displacement assembly 40 is used for carrying the winding core 60 and driving the winding core 60 to move along the axial direction thereof.

[0029] In actual application, one common abnormal problem in the production of the winding core 60 is that the winding core 60 is difficult to be placed into a shell due to the large diameter, which may be related to the overlarge design of the winding core 60, or related to the factors such as the overlarge volume caused by the overthickness of the pole piece, the diameter overlimit caused by the difference in the lug welding position, etc. At this time, an engineer on site needs to measure the diameter data of the winding core 60 at different positions, analyze the reason for the winding core 60 diameter overlimit and difficult to enter the shell, and indicate the direction for subsequent improvement.

[0030] Therefore, the displacement assembly 40 is arranged in the application, the displacement assembly 40 is installed on the rack 10, the displacement assembly 40 can be used for carrying the roll core 60 and driving the roll core 60 to move along the axial direction of the roll core 60, during the movement, the first to-be-measured point and the second to-be-measured point measured by the first distance meter 20 and the second distance meter 30 are changed, that is, along the axial direction of the roll core 60, the first distance meter 20 and the second distance meter 30 measure the first to-be-measured point and the second to-be-measured point at multiple positions, the diameter of the roll core 60 at multiple positions is obtained, so that the position with the largest diameter is found, and the cause of the problem is facilitated for engineers to analyze.

[0031] Please refer to Figure 1 , the displacement assembly 40 includes a driving piece 401, a sliding rail 402 and a sliding block 403, the driving piece 401 is connected with the rack 10, the sliding rail 402 is connected with the rack 10 and is arranged between the first distance meter 20 and the second distance meter 30, the sliding block 403 is slidingly connected with the sliding rail 402, and the output end of the driving piece 401 is connected with the sliding block 403, and the sliding block 403 is used for carrying the roll core 60.

[0032] In actual application, the sliding rail 402 extends along the axial direction of the roll core 60, the sliding block 403 is slidingly connected with the sliding rail 402, and the output end of the driving piece 401 is connected with the sliding block 403, the driving piece 401 is used for driving the sliding block 403 to move along the length direction of the sliding rail 402, that is, the axial direction of the roll core 60, and then driving the roll core 60 to move in the axial direction, so that the first distance meter 20 and the second distance meter 30 can measure the first to-be-measured point and the second to-be-measured point at different positions respectively, and the diameter of the roll core 60 at different positions is obtained.

[0033] It should be noted that the driving piece 401 can adopt a structure such as a motor or an electric push rod.

[0034] Please refer to Figure 2 , the displacement assembly 40 further includes a plurality of support rods 404, the plurality of support rods 404 are respectively connected with the sliding rail 402 and the rack 10 and are arranged at intervals along the length direction of the sliding rail 402.

[0035] In order to ensure that the light measured by the first distance meter 20 and the second distance meter 30 can be perpendicular to the axial direction of the roll core 60, the roll core 60 needs to be placed absolutely horizontally, therefore, during the measurement, especially when the sliding block 403 moves, the sliding rail 402 should be ensured to be horizontal to avoid shaking, which causes the roll core 60 to shake and causes measurement error, therefore, the application sets the plurality of support rods 404, the plurality of support rods 404 are sequentially arranged along the length direction of the sliding rail 402 and are used for supporting the sliding rail 402, preventing the sliding rail 402 from being deformed under stress when the sliding block 403 drives the roll core 60 to slide, maintaining the straightness of the sliding rail 402; and reducing the vibration caused by the sliding of the sliding block 403.

[0036] Please refer toFigure 3 The measuring device further comprises a clamp assembly 50, which is connected with the output end of the displacement assembly 40 and used for carrying the winding core 60. In actual application, the clamp assembly 50 is mainly used for carrying and fixing the winding core 60, the driving member 401 of the displacement assembly 40 can be connected with the clamp assembly 50, the clamp assembly 50 can be connected with the sliding block 403 to realize the sliding connection between the clamp assembly 50 and the sliding rail 402, and the driving member 401 can drive the clamp assembly 50 to move in the axial direction, so that the clamp assembly 50 drives the winding core 60 to move in the axial direction, and the diameters of the winding core 60 at different positions are measured. By adopting the clamp assembly 50, the displacement of the winding core 60 during sliding can be prevented, and measurement errors are avoided.

[0037] Please refer to Figure 3 The clamp assembly 50 is provided with a circular arc surface 501, which is used for wrapping the winding core 60. The circular arc surface 501 can better adapt to the outer side of the winding core 60 and plays a role in limiting the winding core 60 from moving radially.

[0038] Please refer to Figure 3 The clamp assembly 50 further comprises a fixing seat 502, a bearing seat 503 and a fixing member 504, the fixing seat 502 is connected with the output end of the displacement assembly 40, the bearing seat 503 is provided with the circular arc surface 501, and the fixing member 504 is detachably connected with the fixing seat 502 and the bearing seat 503.

[0039] In actual application, the bearing seat 503 and the fixing seat 502 are detachably connected through the fixing member 504, which is beneficial to replacing the bearing seat 503 of different sizes to adapt to winding cores 60 of different diameters. The fixing member 504 can be a bolt or a screw.

[0040] It should be noted that the bearing seat 503 and the fixing seat 502 are both provided with an avoiding hole through which the measuring light passes.

[0041] In one embodiment, as shown in Figure 3 The bearing seat 503 can be an integral component, which is simple to install and convenient to replace; as shown in Figure 4 The bearing seat 503 can also comprise two symmetrical semicircular seats, which jointly carry the winding core 60. In this way, the distance between the two semicircular seats can be adjusted by moving one of the semicircular seats, so as to adapt to winding cores 60 of different diameters.

[0042] Please refer to Figure 4The fixed seat 502 is provided with a mounting groove 5021, and the bearing seat 503 is assembled in the mounting groove 5021. The mounting groove 5021 provides a fixed position for the bearing seat 503, which can protect the bearing seat 503 and the winding core 60 mounted therein from external impurities.

[0043] Please refer to Figure 5 In an embodiment, the clamp assembly 50 can also have other forms. For example, the clamp assembly 50 can include a base 505, a first fixed ring 506 and a second fixed ring 507. The base 505 is connected to the output end of the displacement assembly 40. The first fixed ring 506 and the second fixed ring 507 are arranged at opposite ends of the base 505. The first fixed ring 506 and the second fixed ring 507 are used to jointly suspend the winding core 60.

[0044] In actual application, the first fixed ring 506 and the second fixed ring 507 are in the form of a circular arc, or are provided with a circular arc surface to adapt to the outer circumferential surface of the winding core 60. The first fixed ring 506 and the second fixed ring 507 are respectively connected to the two ends of the base 505 along the axial direction of the winding core 60. The opposite ends of the winding core 60 are respectively overlapped on the first fixed ring 506 and the second fixed ring 507. At the same time, the opposite ends of the winding core 60 can respectively extend out of the first fixed ring 506 and the second fixed ring 507. In this way, on the one hand, the first fixed ring 506 and the second fixed ring 507 can be applied to winding cores 60 of various lengths. On the other hand, the position of the winding core 60 blocked by the first fixed ring 506 and the second fixed ring 507 is small, and the positions that can be measured by the first distance meter 20 and the second distance meter 30 are more, thereby improving the measurement accuracy.

[0045] It should be noted that the base 505 can be connected to the sliding block 403, and the output end of the driving member 401 can be connected to the base 505, so that the driving member 401 drives the base 505 to move on the sliding rail 402.

[0046] Please refer to Figure 5At least one of the first fixing ring 506 and the second fixing ring 507 is in sliding connection with the base 505. The first fixing ring 506 and the second fixing ring 507 are used for lapping the opposite ends of the winding core 60. In order to improve the practicability of the device and make it suitable for winding cores 60 of more different lengths, the first fixing ring 506 or (and) the second fixing ring 507 is in sliding connection with the base 505. By moving the first fixing ring 506 or the second fixing ring 507, the distance between the first fixing ring 506 and the second fixing ring 507 is adjusted, so as to be suitable for winding cores 60 of different lengths. It should be noted that when the first fixing ring 506 or (and) the second fixing ring 507 is in sliding connection with the base 505, after the positions of the first fixing ring 506 and the second fixing ring 507 are adjusted, the first fixing ring 506 or (and) the second fixing ring 507 needs to be locked together with the base 505 by a locking member such as a bolt or a screw, so as to avoid relative movement during measurement.

[0047] Compared with the prior art, the first distance meter 20 and the second distance meter 30 can measure the diameter of the winding core 60 without contacting the winding core 60, exclude errors caused by manual measurement using a vernier caliper, have high data accuracy, can accurately obtain the diameter data of the winding core 60, are fast in response, convenient to use, easy to operate and simple to maintain.

[0048] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the utility model are only used for explaining the relative positional relationship, movement condition and the like between components in a certain specific posture, and if the specific posture changes, the directional indications also change accordingly.

[0049] It should be further noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or can have a middle element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or can be indirectly connected to the other element through a middle element.

[0050] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features or implying the number of the technical features indicated. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, nor in the protection scope required by the present application.

[0051] The above is only the preferred embodiment of the present application, and does not limit the patent range of the present application. Any equivalent structural transformation made by using the content of the present application specification and drawings, or directly / indirectly applied in other related technical fields under the utility model concept of the present application is included in the patent protection scope of the present application.

Claims

1. A measuring device for measuring the diameter of a winding core, wherein the surface of the winding core has a first point to be measured and a second point to be measured in its radial direction, characterized in that: The measuring device comprises: a frame, used for carrying the winding core to be measured; a first rangefinder connected to the frame, the first rangefinder being used to measure a distance L1 from a first point to be measured to the frame; and A second rangefinder is connected to the frame, and is used to measure a distance L2 between a second point to be measured and the frame.

2. The measuring device according to claim 1, characterized in that The measuring device includes a displacement assembly, which is connected to the frame and arranged between the first rangefinder and the second rangefinder. The displacement assembly is used to carry the winding core and drive the winding core to move along its axial direction.

3. The measuring device according to claim 2, characterized in that The displacement assembly includes a driving member, a slide rail and a slider. The driving member is connected to the frame. The slide rail is connected to the frame and is arranged between the first rangefinder and the second rangefinder. The slider is slidably connected to the slide rail. The output end of the driving member is connected to the slider. The slider is used to carry the winding core.

4. The measuring device according to claim 3, characterized in that The displacement assembly further includes a plurality of support rods, which are respectively connected to the slide rail and the frame and are arranged at intervals along the length direction of the slide rail.

5. The measuring device according to any one of claims 2 to 4, characterized in that The measuring device further includes a fixture assembly, which is connected to an output end of the displacement assembly and is used to carry the winding core.

6. The measuring device according to claim 5, characterized in that The clamp assembly is provided with an arc surface, and the arc surface is used to wrap the winding core.

7. The measuring device according to claim 6, characterized in that The clamp assembly includes a fixed seat, a bearing seat and a fixing piece. The fixed seat is connected to the output end of the displacement assembly. The bearing seat is provided with the arc surface. The fixing piece is detachably connected to the fixed seat and the bearing seat.

8. The measuring device according to claim 7, characterized in that The fixing seat is provided with a mounting groove, and the bearing seat is assembled in the mounting groove.

9. The measuring device according to claim 5, characterized in that The clamp assembly includes a base, a first fixing ring and a second fixing ring. The base is connected to the output end of the displacement assembly. The first fixing ring and the second fixing ring are arranged at opposite ends of the base. The first fixing ring and the second fixing ring are used to jointly suspend the winding core.

10. The measuring device according to claim 9, characterized in that At least one of the first fixing ring and the second fixing ring is slidably connected to the base.

Images