Detection positioning device and detection system

Abstract

The utility model discloses a detection positioning device and a detection system, and belongs to the technical field of batteries. The detecting and positioning device comprises a supporting seat, a detecting assembly and a distance adjusting assembly. The battery roll core can be placed in the positioning groove, and the plurality of detection probes can movably penetrate through the first supporting piece in the first direction and point to the positioning groove, so that pressing force towards the supporting seat can be applied to the first supporting plate through the distance adjusting assembly. Therefore, one end, pointing to the positioning groove, of the test probe is in contact with the surface of the battery roll core. The test probe is movably connected with the first support plate in the through hole, so that the height of one end, deviating from the battery roll core, of the test probe can change according to different flatness of the end face of the battery roll core. The flatness of the end face of the battery roll core can be accurately determined by measuring the height difference of the ends, deviating from the battery roll core, of the test probes. Compared with the prior art, the measuring error can be obviously reduced.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a detection and positioning device and a detection system. Background Art

[0002] With the rapid development of battery technology, batteries have become an indispensable component of many modern devices. Cylindrical batteries are a common type of battery, typically consisting of a metal casing, a winding core, a busbar, and a cap. They offer high energy density, fast charge and discharge, and a long lifespan.

[0003] Typically, busbars are welded to each end of a cylindrical battery core, ensuring stable current flow out of the battery cells. To ensure good weld quality between the core and the busbars, the flatness of the core end faces must be repeatedly tested to ensure consistent and reliable product quality. Existing technology primarily measures end face flatness using a dial indicator.

[0004] However, when measuring directly with a dial indicator, there is a lack of positioning reference, and the operations of different operators vary greatly, resulting in large measurement errors. Utility Model Content

[0005] The present invention provides a detection and positioning device and a detection system. This invention can solve the problem of large measurement errors in the prior art. The technical solution is as follows:

[0006] In one aspect, a detection and positioning device is provided, comprising:

[0007] Support base, detection assembly and distance adjustment assembly;

[0008] The support seat has a positioning groove, the positioning groove extends along a first direction, and the positioning groove is suitable for placing the object to be detected extending along the first direction;

[0009] The detection assembly is located on one side of the support seat in the first direction, and the detection assembly includes a first support member and a plurality of detection probes, wherein the plurality of detection probes are movably inserted through the first support member along the first direction and point to the positioning groove;

[0010] The distance adjustment component is connected to the detection component and is used to drive the detection component to move along the first direction.

[0011] Optionally, the support seat further has a support surface, the support surface is connected to an end of the positioning groove away from the first support member, and the first direction is perpendicular to the support surface.

[0012] Optionally, the cross section of the positioning groove is V-shaped.

[0013] Optionally, the detection assembly further includes a plurality of first elastic members, which are sleeved on the detection probe; and the first elastic members are located between the first support member and an end of the detection probe away from the first support member.

[0014] Optionally, each of the detection probes comprises: a probe body and a radial protrusion, wherein the radial protrusion is located at an end of the probe body away from the first support member;

[0015] Wherein, the first elastic member respectively abuts against the radial protrusion and the first supporting member.

[0016] Optionally, the support base includes at least one support column, and the support column passes through the first support member along the first direction and is connected to the distance adjustment assembly.

[0017] Optionally, the detection assembly further includes: a second elastic member sleeved on the support column, the second elastic member is located between the first support member and the support seat, and abuts against the first support member and the support seat.

[0018] Optionally, a side of the first support member facing the support seat has a first limiting groove, and a side of the support seat facing the first support member has a second limiting groove;

[0019] Two ends of the second elastic member are respectively located in the first limiting groove and the second limiting groove.

[0020] Optionally, the distance adjustment assembly includes: a second support member, and an adjustment screw movably connected to the second support member;

[0021] Wherein, the second support member is connected to at least one of the support columns, and the adjusting screw passes through the second support member and abuts against a side of the first support member away from the support seat.

[0022] On the other hand, a detection system is provided, comprising: a test instrument and a detection and positioning device, wherein the detection and positioning device is any of the detection and positioning devices described above;

[0023] The test instrument is used to detect the ends of the multiple detection probes that are away from the detection component.

[0024] The beneficial effects of the technical solutions provided in the embodiments of the present application include at least:

[0025] Since the battery roll core can be placed in the positioning groove, and multiple detection probes can be movably passed through the first support member along the first direction and point to the positioning groove, the distance adjustment component can be used to apply a pressing force toward the support seat to the first support plate. In this way, the end of the test probe pointing to the positioning groove will contact the surface of the battery roll core. Since the test probe is movably connected to the first support plate in the through hole, after the distance adjustment component applies a pressing force toward the support seat to the first support plate, the height of the end of the test probe away from the battery roll core will change according to the flatness of the end face of the battery roll core. By measuring the height difference of these test probes away from one end of the battery roll core, the flatness of the end face of the battery roll core can be accurately determined. Therefore, compared with the existing technology, this method can significantly reduce the measurement error. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0027] Figure 1 This is a schematic structural diagram of a detection and positioning device provided in an embodiment of the present application;

[0028] Figure 2 This is a schematic structural diagram of another detection and positioning device provided in an embodiment of the present application;

[0029] Figure 3 is a top view of a detection and positioning device provided in an embodiment of the present application;

[0030] Figure 4 yes Figure 3 A cross-sectional view at A-A';

[0031] Figure 5 This is a schematic diagram of a combination of a detection probe and a first elastic member provided in an embodiment of the present application;

[0032] Figure 6 yes Figure 3 A cross-sectional view at B-B';

[0033] Figure 7 This is a schematic diagram of the structure of another detection and positioning device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0034] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0035] Please refer to Figure 1 , Figure 1 Schematic diagram of a detection and positioning device according to an embodiment of the present application. The detection and positioning device 000 may include: a support base 100, a detection component 200, and a distance adjustment component 300.

[0036] The support base 100 in the detection and positioning device 000 may have a positioning groove C, which may extend along the first direction X. The positioning groove C is suitable for placing the object to be detected 001 extending along the first direction X. For example, the object to be detected 001 may be a battery coil.

[0037] The detection assembly 200 in the detection and positioning device 000 is located on one side of the support base 100 in the first direction X. The detection assembly 200 may include a first support member 201 and a plurality of detection probes 202. The plurality of detection probes 202 may movably pass through the first support member 201 along the first direction X and point toward the positioning slots C. In other words, the plurality of detection probes 202 may be movably connected to the first support plate 201, and the extension direction of the plurality of detection probes 202 is parallel to the first direction X.

[0038] The distance adjustment component 300 in the detection and positioning device 000 can be connected to the detection component 200 to drive the detection component 200 to move along the first direction X.

[0039] Typically, to ensure good welding quality between the battery core and the busbar, the flatness of the battery core end faces must be tested multiple times to ensure stable and reliable product quality. Existing technology primarily uses a dial indicator to measure the flatness of the battery core end faces. However, direct measurement with a dial indicator lacks a positioning reference, resulting in significant measurement errors.

[0040] In the embodiment of the present application, the battery core 001 is placed in the positioning groove C. Since the multiple test probes 202 can be movably extended along the first direction X through the first support member 201 and pointed toward the positioning groove C, the distance adjustment assembly 300 can apply a compressive force to the first support plate 201 toward the support base 100. In this way, the ends of the multiple test probes 202 pointing toward the positioning groove C will contact the surface of the battery core 001. Since the multiple test probes 202 are movably connected to the first support plate 201, after the distance adjustment assembly 300 applies a compressive force toward the support base 100 to the first support plate 201, the height of the ends of the multiple test probes 202 facing away from the battery core 001 will vary depending on the flatness of the end surface of the battery core 001. By measuring the height difference of the multiple test probes 202 facing away from the end surface of the battery core 001, the flatness of the end surface of the battery core 001 can be accurately determined. Therefore, compared with the existing technology, this method can significantly reduce measurement errors.

[0041] In summary, the present application proposes a detection and positioning device, comprising: a support seat, a detection assembly, and a distance adjustment assembly. Since the battery roll core can be placed in the positioning groove, and multiple detection probes can be movably passed through the first support member along the first direction and pointed to the positioning groove, the distance adjustment assembly can be used to apply a pressing force toward the support seat to the first support plate. In this way, the end of the multiple test probes pointing to the positioning groove will contact the surface of the battery roll core. Since the multiple test probes are movably connected to the first support plate, after the distance adjustment assembly applies a pressing force toward the support seat to the first support plate, the height of the end of the multiple test probes away from the battery roll core will change according to the flatness of the end face of the battery roll core. Therefore, by measuring the height difference of the multiple test probes away from one end of the battery roll core, the flatness of the end face of the battery roll core can be accurately determined. Therefore, compared with the existing technology, this method can significantly reduce the measurement error.

[0042] Figure 2 This is another structural diagram of a detection and positioning device provided in an embodiment of the present application. Figure 2 As shown, the support base 100 in the detection and positioning device 000 may further include a support surface S, which may be connected to the end of the positioning groove C away from the first support member 201. The support surface S is perpendicular to the first direction X. In this case, since the multiple test probes 202 all extend parallel to the first direction X, and the support surface S is perpendicular to the first direction X, this ensures that the measurement operation can be performed perpendicular to the central axis of the object to be detected 001, thereby effectively evaluating its flatness.

[0043] Optional, such as Figure 2 As shown, the cross-section of the positioning groove C in the support base 100 is V-shaped. In this case, the V-shaped groove design can better adapt to the different diameters of the objects to be detected 001. The inclined surfaces on both sides of the V-shaped groove provide additional support and guidance, ensuring that the object to be detected 001 can be automatically centered and stably fixed in the positioning groove C when placed, reducing measurement errors caused by position offset.

[0044] For example, the surface of the positioning groove C that contacts the object to be inspected 001 is made of a non-metallic material. Since non-metallic materials are relatively soft, using a non-metallic material as the contact surface ensures that even slight movement or friction during the inspection process will not damage the surface of the object to be inspected 001, thereby ensuring the safety of the inspection process and the integrity of the object to be inspected.

[0045] In the examples of this application, please refer to Figure 3 and Figure 4 , Figure 3 is a top view of a detection and positioning device provided in an embodiment of the present application; Figure 4 yes Figure 3A cross-sectional view at A-A'. The detection assembly 200 in the detection and positioning device 000 may also include a plurality of first elastic members 203, which are sleeved on the detection probe 202. The first elastic member 203 is located between the end of the detection probe 202 away from the first support member 201 and the first support member 201. In this case, the first elastic member 203 can provide a certain elastic restoring force for the detection probe 202. When the detection probe 202 contacts the surface of the object to be detected 001, the elastic member 203 can absorb the impact force caused by the uneven surface, prevent the detection probe 202 from causing damage to the object to be detected 001, and ensure that the detection probe 202 can smoothly contact the object to be detected 001, thereby improving the accuracy and reliability of the detection.

[0046] Optional, please refer to Figure 5 , Figure 5 Schematic diagram of a detection probe and a first elastic member assembly provided in an embodiment of the present application. Each detection probe 202 in the detection assembly 200 may include a probe body 2021 and a radial protrusion 2022 located at an end of the probe body 2021 away from the first support member 201 .

[0047] Among them, the first elastic member 203 in the detection assembly 200 is respectively against the radial protrusion 2022 and the first support member 201. In this case, the first elastic member 203 can be a compression spring. Because the first elastic member 203 is located between the radial protrusion 2022 and the first support member 201, it can provide appropriate cushioning when the detection probe 202 contacts the object to be detected 001, preventing hard collisions from causing damage to the detection probe 202 or the object to be detected 001. At the same time, the uniform elastic force distribution of the compression spring can ensure close and uniform contact between the detection probe 202 and the surface of the object to be detected 001, thereby improving the accuracy and reliability of the measurement.

[0048] In the examples of this application, please refer to Figure 6 , Figure 6 yes Figure 3 A cross-sectional view at BB'. The support base 100 in the detection and positioning device 000 may include at least one support column 101, which passes through the first support member 201 along the first direction X and is connected to the distance adjustment assembly 300. For example, the support base 100 in the detection and positioning device 000 includes two oppositely disposed support columns 101, and both oppositely disposed support columns 101 pass through the first support member 201 along the first direction X and are connected to the distance adjustment assembly 300.

[0049] In this case, the provision of support columns 101 enhances the connection strength between detection assembly 200 and distance adjustment assembly 300, making the entire detection and positioning device 000 more stable and reliable during operation. Furthermore, since support columns 101 are connected to distance adjustment assembly 300, the distance between detection assembly 200 and object 001 can be conveniently adjusted by adjusting distance adjustment assembly 300, thereby meeting different detection requirements. Furthermore, the two opposing support columns 101 provide improved balance and symmetry, helping to further enhance detection accuracy and reliability.

[0050] Optional, such as Figure 6 As shown, the detection assembly 200 in the detection and positioning device 000 may also include: a second elastic member 204 sleeved on the support column 101, the second elastic member 204 is located between the first support member 201 and the support base 100, and is in contact with the first support member 201 and the support base 100. For example, the second elastic member 204 can be a spring. In this case, a second elastic member 204 is provided on the support column 101 to abut against the first support member 201 and the support base 100. The second elastic member 204 can absorb and disperse the impact force caused by the uneven surface of the object to be detected 001 or the uneven detection force during the detection process, thereby providing flexibility and buffering in the vertical direction for the detection assembly 200, thereby protecting the detection probe 202 and the object to be detected 001 from damage. In addition, the elastic restoring force provided by the second elastic member 204 can ensure that the detection probe 202 always maintains an appropriate contact pressure with the object to be detected 001, thereby improving the accuracy and stability of the detection.

[0051] In the embodiments of this application, Figure 6 As shown, the first support member 201 in the detection assembly 200 has a first limiting groove P1 on a side facing the support base 100 , and the support base 100 has a second limiting groove P2 on a side facing the first support member 201 .

[0052] The ends of the second elastic member 204 in the detection assembly 200 are located in the first limiting groove P1 and the second limiting groove P2, respectively. In this case, the first limiting groove P1 and the second limiting groove P2 can effectively limit the position of the second elastic member 204, ensuring that it does not shift or fall off during the detection process, thereby ensuring the stability and reliability of the detection assembly 200.

[0053] Figure 7 This is another structural diagram of a detection and positioning device provided in an embodiment of the present application. Figure 7As shown, the distance adjustment assembly 300 in the detection and positioning device 000 may include: a second support member 301, and an adjustment screw 302 movably connected to the second support member 301. For example, there are two adjustment screws 302, which are respectively provided at both ends of the second support member 301.

[0054] The second support member 301 in the distance adjustment assembly 300 is connected to at least one support column 101, and the adjustment screw 302 passes through the second support member 301 and abuts against the side of the first support member 201 facing away from the support base 100. For example, the second support member 301 in the distance adjustment assembly 300 is connected to both support columns 101.

[0055] In this case, because the adjustment screw 302 passes through the second support member 301 and abuts against the side of the first support member 201 facing away from the support base 100, by rotating the two adjustment screws 302 to apply a pressing force to the first support member 201 toward the support base 100, the height of the end of the test probe 202 facing away from the battery core 001 will vary depending on the flatness of the end surface of the battery core 001. By measuring the height difference of the end of the test probe 202 facing away from the battery core 001, the flatness of the end surface of the battery core 001 can be accurately determined.

[0056] In summary, the present application proposes a detection and positioning device, comprising: a support seat, a detection assembly and a distance adjustment assembly. Since the battery roll core can be placed in the positioning groove, and multiple detection probes can be movably passed through the first support member along the first direction and point to the positioning groove, the distance adjustment assembly can be used to apply a pressing force toward the support seat to the first support plate. In this way, the end of the multiple test probes pointing to the positioning groove will contact the surface of the battery roll core. Since the multiple test probes are movably connected to the first support plate, after the distance adjustment assembly applies a pressing force toward the support seat to the first support plate, the height of the end of the multiple test probes away from the battery roll core will change according to the flatness of the end face of the battery roll core. By measuring the height difference of the multiple test probes away from one end of the battery roll core, the flatness of the end face of the battery roll core can be accurately determined. Therefore, compared with the existing technology, this method can significantly reduce the measurement error.

[0057] An embodiment of the present application further provides a detection system, comprising: a test instrument and a detection and positioning device, wherein the detection and positioning device is any of the above-mentioned detection and positioning devices.

[0058] The test instrument in the detection system is used to detect the ends of the plurality of detection probes 202 that are away from the detection assembly 200 .

[0059] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more than two, unless expressly limited otherwise.

[0060] The above description is merely an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A detection and positioning device, characterized in that: include: A support base (100), a detection assembly (200) and a distance adjustment assembly (300); The support seat (100) has a positioning groove (C), the positioning groove (C) extends along a first direction (X), and the positioning groove (C) is suitable for placing an object to be detected (001) extending along the first direction (X); The detection assembly (200) is located on one side of the support seat (100) in the first direction (X), and the detection assembly (200) comprises a first support member (201) and a plurality of detection probes (202), wherein the plurality of detection probes (202) are movably passed through the first support member (201) along the first direction (X) and point to the positioning groove (C); The distance adjustment component (300) is connected to the detection component (200) and is used to drive the detection component (200) to move along the first direction (X).

2. The detection and positioning device according to claim 1, characterized in that: The support seat (100) further comprises a support surface (S), the support surface (S) being connected to an end of the positioning groove (C) away from the first support member (201), and the first direction (X) being perpendicular to the support surface (S).

3. The detection and positioning device according to claim 1, characterized in that: The cross section of the positioning groove (C) is V-shaped.

4. The detection and positioning device according to claim 1, characterized in that: The detection assembly (200) further comprises a plurality of first elastic members (203), wherein the first elastic members (203) are sleeved on the detection probe (202); the first elastic members (203) are located between an end of the detection probe (202) away from the first support member (201) and the first support member (201).

5. The detection and positioning device according to claim 4, characterized in that: Each detection probe (202) comprises: a probe body (2021) and a radial protrusion (2022), wherein the radial protrusion (2022) is located at an end of the probe body (2021) facing away from the first support member (201); Wherein, the first elastic member (203) respectively abuts against the radial protrusion (2022) and the first supporting member (201).

6. The detection and positioning device according to any one of claims 1 to 5, characterized in that: The support seat (100) comprises at least one support column (101), and the support column (101) passes through the first support member (201) along the first direction (X) and is connected to the distance adjustment assembly (300).

7. The detection and positioning device according to claim 6, characterized in that: The detection assembly (200) further comprises: a second elastic member (204) sleeved on the support column (101), wherein the second elastic member (204) is located between the first support member (201) and the support seat (100), and abuts against the first support member (201) and the support seat (100).

8. The detection and positioning device according to claim 7, characterized in that: The first support member (201) has a first limiting groove (P1) on a side facing the support seat (100), and the support seat (100) has a second limiting groove (P2) on a side facing the first support member (201); Two ends of the second elastic member (204) are respectively located in the first limiting groove (P1) and the second limiting groove (P2).

9. The detection and positioning device according to claim 6, characterized in that: The distance adjustment assembly (300) comprises: a second support member (301), and an adjustment screw (302) movably connected to the second support member (301); The second support member (301) is connected to at least one of the support columns (101), and the adjusting screw (302) passes through the second support member (301) and abuts against a side of the first support member (201) facing away from the support seat (100).

10. A detection system, characterized in that: include: A test instrument and a detection and positioning device, wherein the detection and positioning device is the detection and positioning device according to any one of claims 1 to 9; The test instrument is used to detect the ends of the plurality of detection probes (202) that are away from the detection assembly (200).

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