Universal fixture for measuring size of top cover

Abstract

The utility model discloses a general fixture for measuring the size of a top cover, and relates to the technical field of battery top cover measuring devices. Comprising a base, a linear guide rail, a positioning mechanism and a fixed positioning pin, the linear guide rail is fixed to the base, the positioning mechanism is slidably installed on the linear guide rail, and installation holes are formed in the two ends of the positioning mechanism; the surface of the base is provided with a plurality of positioning holes matched with different types of top covers, the surface of the base is engraved with top cover type identifiers corresponding to the positioning holes, and the fixed positioning pins can be inserted into the mounting holes and the positioning holes so as to be matched with the measuring positions of the different types of top covers. The utility model is used for solving the problems of resource cost waste and low efficiency, improves the flexibility and universality of measurement, optimizes the resource utilization, and improves the working efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of battery top cover measuring devices, specifically, it relates to a universal fixture for measuring the size of a top cover. Background Technology

[0002] As a crucial component of battery modules, the battery top cover not only plays a vital role in sealing the battery's interior and protecting its internal structure from external environmental interference, but its dimensional accuracy also directly affects the battery's assembly efficiency, safety, and overall performance. Therefore, precise measurement of the top cover's dimensions is particularly critical during battery production.

[0003] In current battery cover production processes, dimensional measurements are typically performed using specialized measuring fixtures. These fixtures are custom-designed based on the specific length, width, and shape of the cover to ensure measurement accuracy and stability. During measurement, the cover is placed in the corresponding fixture, which is then placed on a 2.5D measuring machine. The machine's high-precision probe measures the key dimensions of the cover.

[0004] As battery cover models become increasingly diverse, this dedicated fixture design has revealed numerous problems in practical applications. Firstly, because each cover is equipped with a dedicated fixture, these fixtures occupy significant laboratory space when idle, resulting in resource waste. Secondly, when operators need to switch between different cover models for measurement, they must spend time searching for the corresponding fixture, increasing their workload, reducing efficiency, and delaying the entire measurement process. Furthermore, the existence of numerous idle fixtures means that the company's investment in fixture production is idle and cannot be effectively utilized, resulting in resource waste. Frequent production of different fixture models also increases production costs. Finally, dedicated fixtures are difficult to adapt to covers with slight variations in size or shape, limiting the wide applicability of the measurements.

[0005] Therefore, there is an urgent need for a universal fixture that can adapt to various sizes and shapes of top cover dimensions to meet the needs of the rapidly developing battery industry. Utility Model Content

[0006] This utility model provides a universal fixture for measuring the size of a top cover, which solves the problems of wasted resources and low efficiency, improves the flexibility and versatility of measurement, optimizes resource utilization, and improves work efficiency.

[0007] The technical solution used in this utility model is as follows:

[0008] A universal fixture for measuring the dimensions of a top cover includes a base, a linear guide, a positioning mechanism, and a fixing pin.

[0009] The linear guide is fixed to the base, and the positioning mechanism is slidably mounted on the linear guide. The positioning mechanism has mounting holes at both ends.

[0010] The base surface is provided with multiple positioning holes that can be adapted to different top cover models. The base surface is engraved with top cover model markings corresponding to the positioning holes. The fixing positioning pin can be inserted into the mounting hole and the positioning hole to adapt to the measurement position of different top cover models.

[0011] Furthermore, the linear guide is provided in three sections, two of which are arranged in parallel, and the third section is arranged along the perpendicular bisector of the two parallel sections.

[0012] Furthermore, the positioning mechanism includes a slider and a top cover support block. The slider is slidably connected to the linear rail, and two sliders are symmetrically distributed on each linear rail. The top cover support block is fixedly installed on the top of the slider, and mounting holes are provided at both ends of the top cover support block.

[0013] Furthermore, the top cover support block is provided with elastic rubber on the side facing the top cover it is clamped.

[0014] Furthermore, a top cover support block is fixedly installed on the top of each of the two sliders on each of the said rails.

[0015] Furthermore, the tops of the sliders on the same side of the two parallel rails are fixedly connected to a top cover support block, the length of which covers the distance between the two sliders.

[0016] Furthermore, the positioning mechanism also includes a clamping component, which is fixed to the upper surface of the top cover support block for clamping and fixing the top cover.

[0017] Furthermore, the clamping assembly includes a pressure plate, a pressure rod, a top rod, a spring, and a hexagonal nut. The top rod and the pressure rod are threaded to the top two ends of the top cover support block, respectively. The spring is sleeved on the outside of the pressure rod. The two ends of the pressure plate are connected to the top of the top rod and the top of the pressure rod, respectively. The hexagonal nut is threaded to the top of the pressure rod. By rotating the hexagonal nut, the pressure rod is driven to move axially, thereby causing the pressure plate to clamp or loosen the top cover.

[0018] Furthermore, the positioning holes are distributed on both sides of the rail, and there are multiple sets of positioning holes. Each set of positioning holes is engraved with the corresponding top cover model mark.

[0019] Furthermore, the base is made of aluminum alloy.

[0020] The beneficial effects of this utility model are:

[0021] 1. This utility model, through the design of a positioning mechanism that can be slidably mounted on a linear guide, combined with multiple positioning holes on the base adapted to different top cover models, can quickly adjust and fix battery top covers of different sizes and shapes without the need to customize special clamps for each top cover. This not only greatly improves the flexibility and versatility of measurement, but also saves storage space, avoids the waste of resources caused by a large number of idle clamps, reduces the need for frequent production of different types of clamps, and lowers the production costs for enterprises.

[0022] 2. This utility model uses a fixed positioning pin to quickly lock the positioning mechanism in the appropriate position, allowing measurement to begin immediately without the need to find and replace special fixtures. This shortens measurement preparation time, improves work efficiency, reduces the workload of operators, and also reduces measurement delays caused by fixture replacements. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the universal fixture for measuring the top cover dimensions provided in Example 1;

[0024] Figure 2 A schematic diagram of the positioning mechanism provided by this utility model;

[0025] Figure 3 This is a top view of the universal fixture for measuring the top cover dimensions provided in Example 2.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Base; 2. Linear rail; 3. Positioning mechanism; 4. Fixed positioning pin; 5. Positioning hole; 6. Top cover model identification; 31. Slider; 32. Top cover support block; 33. Elastic rubber; 34. Pressing assembly; 35. Mounting hole; 341. Pressure plate; 342. Pressure rod; 343. Top rod; 344. Spring; 345. Hexagonal nut. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0030] Example 1

[0031] like Figure 1 and Figure 2As shown, this embodiment provides a universal fixture for measuring the dimensions of top covers, including a base 1, a linear guide 2, a positioning mechanism 3, and a fixing positioning pin 4. The base 1 is made of aluminum alloy, which is lightweight and high-strength, ensuring the stability of the fixture during use, facilitating handling and installation, and its good corrosion resistance extends the service life of the fixture. The linear guide 2 is fixed to the base 1, and the positioning mechanism 3 is slidably mounted on the linear guide 2. The positioning mechanism 3 has mounting holes 35 at both ends. The surface of the base 1 has multiple positioning holes 5 adapted to different top cover models. The positioning holes 5 are distributed on both sides of the linear guide 2, and there are multiple sets of positioning holes 5. In this embodiment, there are six sets. The surface of the base 1 and each set of positioning holes 5 is engraved with a corresponding top cover model identifier 6. The fixing positioning pin 4 can be inserted into the mounting holes 35 and the positioning holes 5 to adapt to the measurement position of different top cover models, making it convenient to quickly find the corresponding positioning hole 5 according to the top cover model and improving measurement efficiency.

[0032] In this embodiment, there are three rails 2, two of which are arranged in parallel and the third rail 2 is arranged along the perpendicular line of the two parallel rails 2, so that the positioning mechanism 3 can flexibly adjust its position in different directions to meet the measurement needs of top covers of different shapes and sizes.

[0033] Specifically, such as Figure 2 As shown, the positioning mechanism 3 includes a slider 31, a top cover support block 32, and a clamping assembly 34. The slider 31 is slidably connected to the linear rail 2, and two sliders 31 are symmetrically distributed on each linear rail 2. The top cover support block 32 is fixedly installed on the top of the slider 31, and one top cover support block 32 is fixedly installed on the top of each of the two sliders 31 on each linear rail 2. The top cover support block 32 has mounting holes 35 at both ends for positioning with the fixed positioning pin 4. The side of the top cover support block 32 facing the clamped top cover is provided with elastic rubber 33. The elastic rubber 33 has good flexibility and friction, which can not only fit tightly against the surface of the top cover so that the top cover will not easily slide during the measurement process, but also use its elasticity to compensate for the slippage.

[0034] The top cover manufacturing tolerances; on the other hand, it can effectively avoid scratches on the top cover surface during clamping, thus protecting the appearance quality of the top cover.

[0035] The clamping assembly 34 is fixed to the upper surface of the top cover support block 32 and is used to clamp and fix the top cover. The clamping assembly 34 includes a pressure plate 341, a pressure rod 342, a top rod 343, a spring 344, and a hexagonal nut 345. The top rod 343 and the pressure rod 342 are threaded to both ends of the top of the top of the top cover support block 32, respectively. The spring 344 is sleeved on the outside of the pressure rod 342, which plays a role in buffering and assisting in resetting. The two ends of the pressure plate 341 are connected to the top ends of the top rod 343 and the top ends of the pressure rod 342, respectively. The hexagonal nut 345 is threaded to the top end of the pressure rod 342. By rotating the hexagonal nut 345, the pressure rod 342 is driven to move axially, thereby causing the pressure plate 341 to clamp or loosen the top cover. According to the thickness of the top cover, the clamping force of the pressure plate 341 on the top cover is precisely adjusted by rotating the hexagonal nut 345 to ensure that the top cover is firmly fixed during the measurement process.

[0036] Example 2

[0037] In Embodiment 2, three rails 2 are provided, two of which are arranged in parallel, and the third rail 2 is arranged along the perpendicular bisector of the two parallel rails 2. The difference from Embodiment 1 is as follows: Figure 3 As shown, the tops of the sliders 31 on the same side of the two parallel linear rails 2 are jointly fixedly connected to a top cover support block 32. The length of the top cover support block 32 covers the distance between the two sliders 31, increasing the stability and rigidity of the support. This design reduces the number of top cover support blocks 32, making the overall structure simpler and facilitating smooth overall movement. It also reduces the operational complexity caused by multiple independent support blocks, making the clamp more flexible and faster to operate when adapting to different types of top covers.

[0038] The working principle of this utility model is as follows.

[0039] Based on the model of the top cover to be measured, locate the corresponding top cover model mark 6 and the corresponding positioning hole 5 on the surface of the base 1. Then, slide the positioning mechanism 3 on the rail 2 via the slider 31 to adjust it to a suitable position so that the mounting holes 35 at both ends of the positioning mechanism 3 are aligned with the selected positioning holes 5 on the base 1.

[0040] Next, place the top cover on the base 1. The elastic rubber 33 on the top cover support block 32 contacts the surface of the top cover, increasing friction and protecting the surface of the top cover. Insert the fixing positioning pin 4 into the mounting hole 35 and the positioning hole 5 to fix the positioning mechanism 3 on the base 1, thus completing the clamping of the top cover.

[0041] Then, rotating the hexagonal nut 345 in the clamping assembly 34 drives the pressure rod 342 to move axially. Since the two ends of the pressure plate 341 are connected to the top of the push rod 343 and the top of the pressure rod 342 respectively, the movement of the pressure rod 342 will cause the pressure plate 341 to move downward, thereby clamping the top cover. During the clamping process, the spring 344 acts as a buffer to prevent excessive pressure from damaging the top cover. When it is necessary to loosen the top cover, rotating the hexagonal nut 345 in the opposite direction moves the pressure rod 342 upward, and the spring 344 assists the pressure plate 341 to return to its original position, thus loosening the top cover.

[0042] After the top cover is fixed, place the top cover and the clamp together on a 2.5D measuring device to measure the flatness and other dimensions of the top cover.

[0043] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A universal fixture for measuring the dimensions of a top cover, characterized in that, Includes a base (1), a linear guide (2), a positioning mechanism (3), and a fixing pin (4). The linear guide (2) is fixed on the base (1), and the positioning mechanism (3) is slidably mounted on the linear guide (2). The positioning mechanism (3) has mounting holes (35) at both ends. The base (1) has multiple positioning holes (5) on its surface that are adapted to different top cover models. The base (1) has a top cover model mark (6) engraved on its surface that corresponds to the positioning hole (5). The fixing positioning pin (4) can be inserted into the mounting hole (35) and the positioning hole (5) to adapt to the measurement position of different top cover models.

2. The universal fixture for measuring the dimensions of a top cover according to claim 1, characterized in that, The linear guide (2) is provided in three sections, two of which are arranged in parallel, and the third is arranged along the perpendicular line of the two parallel linear guides (2).

3. The universal fixture for measuring the size of a top cover according to claim 2, characterized in that, The positioning mechanism (3) includes a slider (31) and a top cover support block (32). The slider (31) is slidably connected to the linear rail (2), and two sliders (31) are symmetrically distributed on each linear rail (2). The top cover support block (32) is fixedly installed on the top of the slider (31), and mounting holes (35) are provided at both ends of the top cover support block (32).

4. The universal fixture for measuring the dimensions of a top cover according to claim 3, characterized in that, The top cover support block (32) is provided with elastic rubber (33) on the side facing the top cover it is clamped.

5. A universal fixture for measuring the dimensions of a top cover according to claim 3, characterized in that, Each of the two sliders (31) on each of the rails (2) has a top cover support block (32) fixedly installed on its top.

6. A universal fixture for measuring the dimensions of a top cover according to claim 3, characterized in that, The top of the sliders (31) on the same side of the two parallel rails (2) are fixedly connected to a top cover support block (32), the length of which covers the distance between the two sliders (31).

7. A universal fixture for measuring the dimensions of a top cover according to claim 3, characterized in that, The positioning mechanism (3) further includes a pressing component (34), which is fixed on the upper surface of the top cover support block (32) for pressing and fixing the top cover.

8. A universal fixture for measuring the dimensions of a top cover according to claim 7, characterized in that, The clamping assembly (34) includes a pressure plate (341), a pressure rod (342), a top rod (343), a spring (344), and a hexagonal nut (345). The top rod (343) and the pressure rod (342) are threaded to the top two ends of the top cover support block (32), respectively. The spring (344) is sleeved on the outside of the pressure rod (342). The two ends of the pressure plate (341) are connected to the top end of the top rod (343) and the top end of the pressure rod (342), respectively. The hexagonal nut (345) is threaded to the top end of the pressure rod (342). By rotating the hexagonal nut (345), the pressure rod (342) is driven to move axially, thereby causing the pressure plate (341) to clamp or loosen the top cover.

9. A universal fixture for measuring the dimensions of a top cover according to claim 1, characterized in that, The positioning holes (5) are distributed on both sides of the rail (2). There are multiple sets of positioning holes (5), and each set of positioning holes (5) is engraved with the corresponding top cover model mark (6).

10. A universal fixture for measuring the dimensions of a top cover according to claim 9, characterized in that, The base (1) is made of aluminum alloy.

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