Size measurement clamp for lower plastic of battery top cover

Abstract

The utility model relates to the technical field of batteries, and discloses a size measuring clamp for lower plastic cement of a battery top cover, which comprises a base and at least one set of positioning assembly connected to the base, and the positioning assembly comprises a positioning block, at least two supporting blocks and at least one limiting block. The positioning block is slidably connected with the base in the first direction and used for positioning the liquid injection position of the lower plastic, and the two supporting blocks are arranged on the two opposite sides of the positioning block in the first direction and slidably connected with the base in the first direction. The two supporting blocks are used for supporting the end of the lower plastic in the length direction, and the limiting blocks are slidably connected with the base in the second direction perpendicular to the first direction and used for limiting the short edge of the lower plastic. The measuring fixture mainly solves the technical problem that an existing measuring fixture cannot adapt to different lower plastic cement of the top cover.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a size measuring fixture for the lower plastic of a battery top cover. Background Art

[0002] The current structure of a battery cell includes a shell, a top cover and a battery cell, wherein the battery cell is accommodated in the shell, and the top cover is used to seal the opening of the shell. The top cover is provided with a positive electrode column and a negative electrode column, wherein the positive electrode column is connected to the positive electrode ear of the battery cell inside the shell, and the negative electrode column is connected to the negative electrode ear of the battery cell inside the shell. In addition, the cover plate body of the top cover is a metal part, so a lower plastic is usually provided at the bottom of the top cover, and the lower plastic is used to insulate and separate the top surface of the battery cell and the bottom surface of the top cover to prevent internal short circuit of the battery cell.

[0003] Specifically, the size of the lower plastic currently needs to be tested before it is assembled to the top cover to ensure that the size of the lower plastic is qualified, thereby ensuring that the subsequent top cover can be correctly assembled with the shell. During measurement, the lower plastic needs to be placed on a corresponding measuring fixture, and then the measuring fixture is placed on a 2.5-dimensional device to measure the size of the lower plastic. However, due to the large number of types of top covers, there are also many types of lower plastics, and the sizes of different types of lower plastics are also different, that is, the shapes of the lower plastics are different. At present, in order to measure whether the size of each lower plastic is qualified, different fixtures need to be designed to match it, resulting in waste of resources and high production costs.

[0004] Therefore, there is a need to improve the existing technology. Utility Model Content

[0005] The utility model provides a size measuring fixture for the lower plastic of a battery top cover, which mainly solves the technical problem that the existing measuring fixture cannot adapt to different lower plastics of the top cover.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A size measuring fixture for the lower plastic of a battery top cover, comprising a base and at least one positioning assembly connected to the base, the positioning assembly comprising a positioning block, at least two support blocks and at least one limit block, the positioning block being slidably connected to the base along a first direction and used to locate the injection position of the lower plastic, the two support blocks being arranged on opposite sides of the positioning block in the first direction and both being slidably connected to the base in the first direction, the two support blocks both being used to support the ends of the lower plastic in the length direction, the limit blocks both being slidably connected to the base in a second direction perpendicular to the first direction and used to limit the short side of the lower plastic.

[0008] In one of the technical solutions, a raised bump is provided at the injection position of the lower plastic, and a through injection hole is provided in the bump. The positioning block limits the injection position of the lower plastic by being inserted into the injection hole or by providing a groove for the bump to be embedded.

[0009] In one of the technical solutions, when the positioning block is inserted into the injection hole to limit the injection position of the lower plastic, the base is provided with a supporting surface for supporting the middle part of the lower plastic on the side where the positioning component is provided.

[0010] In one of the technical solutions, when the positioning block limits the injection position of the lower plastic by providing a groove for the projection to be embedded in, the positioning block is provided with a supporting surface for supporting the lower plastic on the outer side of the notch of the groove.

[0011] In one of the technical solutions, the base is provided with scale lines at positions adjacent to the positioning block.

[0012] In one of the technical solutions, the size measuring fixture includes two sets of positioning assemblies, which are connected to opposite sides of the base. The support blocks in one set of the positioning assemblies are used to support the top surface of the lower plastic, and the support blocks in the other set of the positioning assemblies are used to support the bottom surface of the lower plastic.

[0013] In one of the technical solutions, the base is provided with a first slide groove and a second slide groove, both extending along the first direction, and the second slide groove is provided on both sides of the first slide groove along the second direction. The support blocks in one set of the positioning components slide along the first slide groove, and the support blocks in another set of the positioning components slide along the two second slide grooves at the same time.

[0014] In one of the technical solutions, the positioning block also slides along the first sliding groove.

[0015] In one of the technical solutions, a first fastener for locking the base and the support block in one set of the positioning assembly is provided in the first slide groove, and a second fastener for locking the base and the support block in another set of the positioning assembly is provided in the second slide groove.

[0016] In one of the technical solutions, a penetrating adjustment hole is provided on the limit block, and the adjustment hole extends in the second direction. The adjustment hole is used to adjust the position of the limit block relative to the base in the second direction.

[0017] Compared with the prior art, the size measuring fixture for the lower plastic of the battery top cover provided by the present invention has at least the following beneficial effects:

[0018] During use, the position of the positioning block in the first direction is pre-adjusted according to the position of the injection position of the lower plastic to be measured, and then the lower plastic is placed on the measuring fixture. At this time, the injection position of the lower plastic is just limited by the positioning block. At the same time, the two support blocks in the positioning assembly respectively support the two end portions of the lower plastic part in the length direction, so that the lower plastic will not deform downward due to being a soft plastic part, ensuring that the lower plastic can be in a relatively flat posture, thereby improving the accuracy of subsequent measurement of the lower plastic size. Then, by adjusting the position of the limit block in the second direction, the short side of the lower plastic is limited by the limit block. At this time, the length and width directions of the lower plastic are limited by the measuring fixture. At this time, the measuring fixture with the lower plastic can be placed on the 2.5-dimensional measuring device and the size measurement operation can be completed. When different types of lower plastics need to be measured, the position of the positioning block in the first direction, the position of the two support blocks in the first direction, or the position of the limit block in the second direction can be adjusted to meet the clamping requirements of lower plastics of various sizes. That is, this solution adopts an adjustable design, which solves the problem that the existing measuring fixture cannot adapt to different types of plastics under the top cover, thereby improving resource utilization and significantly reducing the production cost of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a structural diagram of the lower plastic in the prior art;

[0021] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0022] Figure 3 A front view schematic diagram of a size measuring fixture for the lower plastic of a battery top cover provided in an embodiment of the present application;

[0023] Figure 4 A schematic diagram of the back side of a size measuring fixture for the lower plastic of a battery top cover provided in an embodiment of the present application;

[0024] Figure 5 for Figure 3 The schematic diagram of the structure of the size measuring fixture after clamping the lower plastic;

[0025] Figure 6 for Figure 4 The diagram shows the structure of the dimension measuring fixture after clamping the lower plastic.

[0026] Reference numerals:

[0027] 1. Base; 12. Scale line; 13. First slide groove; 14. Second slide groove; 2. Positioning assembly; 21. Positioning block; 211. Groove; 22. Support block; 23. Limit block; 231. Adjustment hole; 3. Bump; 31. Injection hole; 4. Support surface; 5. First fastener; 6. Second fastener. DETAILED DESCRIPTION

[0028] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0029] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0030] It should be understood that the terms, "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0031] Furthermore, 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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0032] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0033] Please also refer to Figures 3 to 6An embodiment of the present utility model provides a size measuring fixture for the lower plastic of a battery top cover, comprising a base 1 and at least one positioning assembly 2 connected to the base 1. The positioning assembly 2 specifically comprises a positioning block 21, at least two support blocks 22, and at least one limit block 23. The positioning block 21 is slidably connected to the base 1 along a first direction (i.e., the X direction) and is used to locate the injection position of the lower plastic. The two support blocks 22 are respectively arranged on opposite sides of the positioning block 21 in the X direction. Both support blocks 22 are slidably connected to the base 1 in the X direction. Both support blocks 22 are used to support the ends of the lower plastic in the length direction. The limit block 23 is slidably connected to the base 1 along a second direction (i.e., the Y direction) and is used to limit the short side of the lower plastic. The X direction and the Y direction are perpendicular to each other.

[0034] Preferably, the positioning assembly 2 of this embodiment includes two limit blocks 23, both of which are slidably connected to the base 1 in the Y direction. The two limit blocks 23 are used to jointly limit the short side of the lower plastic. In other embodiments, only one limit block 23 can be provided in the positioning assembly 2, and the limit block 23 and the base 1 jointly limit the short side of the lower plastic.

[0035] During use, the position of the positioning block 21 in the X direction is pre-adjusted according to the position of the injection position of the lower plastic to be measured, and then the lower plastic is placed on the measuring fixture. At this time, the injection position of the lower plastic is just limited by the positioning block 21. At the same time, the two support blocks 22 in the positioning assembly 2 respectively support the two end portions of the lower plastic part in the length direction, so that the lower plastic will not deform downward due to being a soft plastic part, ensuring that the lower plastic can be in a relatively flat posture, thereby improving the accuracy of subsequent measurement of the lower plastic size. Then, by adjusting the position of the two limit blocks 23 in the Y direction, the short side of the lower plastic is limited by the two limit blocks 23. At this time, the length and width directions of the lower plastic are limited by the measuring fixture. At this time, the measuring fixture with the lower plastic can be placed on the 2.5-dimensional measuring device and the size measurement operation can be completed. When different types of lower plastics need to be measured, the position of the positioning block 21 in the X direction, the positions of the two support blocks 22 in the X direction, or the position of the limit block 23 in the Y direction can be adjusted to meet the clamping requirements of lower plastics of various sizes. That is, this solution adopts an adjustable design, which solves the problem that the existing measuring fixture cannot adapt to different types of top cover lower plastics, thereby improving resource utilization and significantly reducing the production cost of the battery.

[0036] In this embodiment, after adjusting the positions of the positioning block 21, the support block 22 and the limit block 23, it is preferred to fix the positioning block 21, the support block 22 and the limit block 23 to the base 1 respectively by using fasteners (such as bolts) to prevent the lower plastic from loosening and causing deviation and affecting the measurement accuracy.

[0037] See also Figure 1 and Figure 2 , usually, the injection position of the lower plastic is provided with a raised bump 3, and a through injection hole 31 is provided in the bump 3. In this regard, the positioning block 21 can be inserted into the injection hole 31 to limit the injection position of the lower plastic, or the positioning block 21 can be provided with a groove 211 for the bump 3 to be embedded in to limit the injection position of the lower plastic. Specifically, when the positioning block 21 is inserted into the injection hole 31 to limit the injection position of the lower plastic, as shown in FIG. Figure 4 As shown, preferably, the base 1 is provided with a support surface 4 for supporting the middle part of the lower plastic on the side where the positioning component 2 is provided. More specifically, when the positioning block 21 is provided with a groove 211 for the projection 3 to be embedded to limit the injection position of the lower plastic, as shown in FIG. Figure 3 As shown, the positioning block 21 is provided with a support surface 4 for supporting the middle part of the lower plastic on the outside of the notch of the groove 211. The above two ways of setting the support surface 4 can both support the middle part of the lower plastic to prevent the lower plastic from sinking in the middle due to the soft material, ensuring that the posture of the lower plastic after clamping is relatively flat, thereby improving the accuracy of the measurement of the lower plastic size.

[0038] In this embodiment, the base 1 is preferably provided with a scale line 12 at a position adjacent to the positioning block 21. The scale line 12 facilitates the operator to quickly adjust the positioning block 21 to the desired position to quickly meet the clamping requirements of various lower plastics, thereby helping to improve the efficiency of the size measurement of the lower plastic.

[0039] In this embodiment, the dimension measuring fixture includes two sets of positioning components 2, which are connected to opposite sides of the base 1. Figure 3 Shown is a set of positioning components 2 located on one side of the base 1. Figure 4 Shown is another set of positioning assemblies 2 located on the other side of the base 1. Specifically, the support blocks 22 in one set of positioning assemblies 2 support the top surface of the lower plastic, allowing the bottom surface of the lower plastic to be exposed upward, while the support blocks 22 in the other set of positioning assemblies 2 support the bottom surface of the lower plastic, allowing the top surface of the lower plastic to be exposed upward. By providing two sets of positioning assemblies 2, the dimensional measurement fixture of this embodiment can quickly meet the purpose of measuring both sides of the lower plastic. By reducing the number of fixtures used, it has the advantages of high utilization rate and reduced manufacturing costs.

[0040] In this embodiment, the base 1 is provided with a first slide groove 13 and a second slide groove 14, both extending in the X direction. A second slide groove 14 is provided on both sides of the first slide groove 13 in the Y direction. The support block 22 in one set of positioning assemblies 2 slides along the first slide groove 13, while the support block 22 in the other set of positioning assemblies 2 slides simultaneously along the two second slide grooves 14. By staggering the slide grooves in the Y direction, the measuring fixture of this embodiment has the advantage of being thinner while enabling the support blocks 22 in both sets of positioning assemblies to slide and adjust in the X direction. Because the second slide groove 14 is far from the center, designing the support block 22 in one set of positioning assemblies 2 to slide simultaneously along the two second slide grooves 14 can improve the sliding accuracy of the support block 22. Furthermore, the positioning block 21 preferably also slides along the first slide groove 13.

[0041] In this embodiment, the first slide groove 13 and the second slide groove 14 preferably pass through the base 1, so that a first fastener 5 for locking the base 1 and the support block 22 in one set of positioning components 2 can be set in the first slide groove 13, and a second fastener 6 for locking the base 1 and the support block 22 in another set of positioning components 2 can be set in the second slide groove 14.

[0042] In this embodiment, a penetrating adjustment hole 231 is provided on the limit block 23, and the adjustment hole 231 extends in the Y direction. The adjustment hole 231 is used for passing bolts to realize the function of fixing the limit block 23 on the base 1 by bolts and the limit block 23 can be adjusted in the Y direction relative to the base 1.

[0043] The above is merely a preferred embodiment of the present invention and only specifically describes the technical principles of the present invention. These descriptions are intended only to explain the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention, as well as other specific embodiments of the present invention that can be imagined by those skilled in the art without inventive effort, shall be included within the scope of protection of the present invention.

Claims

1. A size measuring fixture for the lower plastic of a battery top cover, characterized in that: It includes a base and at least one positioning assembly connected to the base, the positioning assembly includes a positioning block, at least two support blocks and at least one limit block, the positioning block is slidably connected to the base along a first direction and is used to position the injection position of the lower plastic, the two support blocks are respectively arranged on two opposite sides of the positioning block in the first direction and are both slidably connected to the base in the first direction, the two support blocks are both used to support the end of the lower plastic in the length direction, the limit block is slidably connected to the base along a second direction perpendicular to the first direction, and is used to limit the short side of the lower plastic.

2. The size measuring fixture for the lower plastic of the battery top cover according to claim 1, characterized in that: The injection position of the lower plastic is provided with a raised bump, and a penetrating injection hole is provided in the bump. The positioning block limits the injection position of the lower plastic by being inserted into the injection hole or by providing a groove for the bump to be embedded.

3. The size measuring fixture for the lower plastic of the battery top cover according to claim 2, characterized in that: When the positioning block is inserted into the injection hole to limit the injection position of the lower plastic, the base is provided with a supporting surface for supporting the middle part of the lower plastic on the side where the positioning component is provided.

4. The size measuring fixture for the lower plastic of the battery top cover according to claim 2, characterized in that: When the positioning block limits the injection position of the lower plastic by providing a groove for the projection to be embedded, the positioning block is provided with a supporting surface for supporting the lower plastic on the outer side of the notch of the groove.

5. The size measuring fixture for the lower plastic of the battery top cover according to claim 1, characterized in that: The base is provided with scale lines at positions adjacent to the positioning block.

6. The size measuring fixture for the lower plastic of the battery top cover according to claim 1, characterized in that: The size measuring fixture includes two sets of positioning components, which are connected to opposite sides of the base. The support blocks in one set of positioning components are used to support the top surface of the lower plastic, and the support blocks in the other set of positioning components are used to support the bottom surface of the lower plastic.

7. The size measuring fixture for the lower plastic of the battery top cover according to claim 6, characterized in that: The base is provided with a first slide groove and a second slide groove, both extending along the first direction, and the second slide groove is provided on both sides of the first slide groove along the second direction. The support blocks in one set of the positioning components slide along the first slide groove, and the support blocks in another set of the positioning components slide along the two second slide grooves at the same time.

8. The size measuring fixture for the lower plastic of the battery top cover according to claim 7, characterized in that: The positioning block also slides along the first sliding groove.

9. The size measuring fixture for the lower plastic of the battery top cover according to claim 7, characterized in that: The first slide groove and the second slide groove both pass through the base, and a first fastener for locking the base and the support block in one set of the positioning assembly is provided in the first slide groove, and a second fastener for locking the base and the support block in another set of the positioning assembly is provided in the second slide groove.

10. The size measuring fixture for the lower plastic of the battery top cover according to claim 1, characterized in that: The limiting block is provided with a penetrating adjustment hole, the adjustment hole extending in the second direction, and the adjustment hole is used to adjust the position of the limiting block relative to the base in the second direction.

Images