Rolling groove structure lithium battery shoulder positioning and measuring device

Abstract

The utility model discloses a shoulder positioning and measuring device for a lithium battery with a rolling groove structure. The shoulder positioning and measuring device comprises a bottom plate; the bracket is fixed on the bottom plate, and the top surface of the bracket is provided with a bearing structure matched with the appearance of a battery to be tested; the linear measuring element is provided with two measuring needle ends which are oppositely arranged; the linear measuring element comprises a base plate, a bracket and at least two clamping pieces, the at least two clamping pieces are symmetrically fixed on the base plate and located at the side ends of the bracket, a clamping space matched with a linear measuring element body is formed between the at least two clamping pieces, and the top surface of the bracket is provided with a bearing structure matched with the appearance of a battery to be measured, so that the battery can be stably supported; the clamping structure at the top of the limiting column is matched with the battery rolling groove, the limiting disc and the limiting column are oppositely arranged to jointly position the battery, and a stable measuring basis is formed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of measurement technology, concretely relates to a kind of shoulder positioning measurement device of groove structure lithium battery. BACKGROUND

[0002] In the production and manufacturing process of groove structure lithium battery, shoulder positioning precision is the key index that influences battery assembly performance and use safety. The relative position deviation of shoulder and groove is too large to cause battery to be not tightly packed, electrolyte to leak, even to cause short circuit and other security risks, so it needs to be accurately measured.

[0003] At present, the measurement of shoulder positioning of groove structure lithium battery in the industry is mostly in the mode of manual hand-held measuring tool (such as caliper, micrometer), which lacks stable bearing and positioning structure during measurement. The battery is prone to shaking or tilting, resulting in unstable measurement reference, large deviation of multiple measurement results of the same battery, and difficult to guarantee precision. Moreover, the contact position and force of measuring tool and battery are inconsistent, which easily introduces human error, especially for batch-produced batteries, poor measurement consistency, unable to meet the demand of high-precision production. UTILITY MODEL CONTENT

[0004] Therefore, the utility model provides a kind of shoulder positioning measurement device of groove structure lithium battery to overcome the problems of prior art, such as lack of stable bearing and positioning structure during measurement, battery prone to shaking or tilting, resulting in unstable measurement reference, large deviation of multiple measurement results of the same battery, and difficult to guarantee precision. Moreover, the contact position and force of measuring tool and battery are inconsistent, which easily introduces human error, especially for batch-produced batteries, poor measurement consistency, unable to meet the demand of high-precision production.

[0005] The utility model is implemented by the following technical solutions:

[0006] A kind of shoulder positioning measurement device of groove structure lithium battery, comprising: bottom plate;Bracket, the bracket is fixed on the bottom plate, the bracket top surface is equipped with the bearing structure that is adapted to the appearance of battery to be measured;Linear measurement element, the linear measurement element has two measuring needles ends that are oppositely arranged;Two clamping pieces, the two clamping pieces are symmetrically fixed on the bottom plate and located at the side end of bracket, to the clamping space that is adapted to the main body of linear measurement element between two clamping pieces, the main body of linear measurement element is clamped in clamping space;Limiting column, the limiting column is fixed on the bottom plate, the limiting column top is equipped with the clamping structure that is adapted to the groove of battery to be measured, one measuring needle end of the linear measurement element is connected with limiting column;Limiting disc, the limiting disc is fixed on the other measuring needle end of linear measurement element, the limiting disc can move along the measurement axis direction of linear measurement element, and it is oppositely arranged with limiting column to jointly position battery to be measured.

[0007] Preferably, the clamping pieces are left and right stop clamps, and locking bolts are respectively screwed on the left and right stop clamps, the locking bolts pass through the clamping pieces and abut against the side surface of the linear measuring element.

[0008] Preferably, the support frame is further provided, and the support frame is fixed on the bottom plate, and the fixed end of the screw rod of the linear measuring element penetrates the positioning support frame.

[0009] Preferably, the support frame comprises first and second positioning blocks, the first positioning block is fixed on the bottom plate, the second positioning block is fixed on the top of the first positioning block through a connecting assembly, and the first and second positioning blocks are respectively provided with oppositely arranged arc-shaped grooves which are matched with the screw rod of the linear measuring element.

[0010] Preferably, the connecting assembly comprises a key-shaped connecting plate, and two bolts are screwed on the key-shaped connecting plate, the bolts pass through the key-shaped connecting plate and are screwed on the first and second positioning blocks, respectively.

[0011] Preferably, the bearing structure on the top surface of the bracket is an arc-shaped groove matched with the battery to be measured.

[0012] Preferably, the clamping structure on the top of the limiting column is a clamping groove matched with the flared shape of the rolling groove of the battery to be measured.

[0013] Preferably, the linear measuring element is a micrometer.

[0014] The utility model discloses the advantages are as follows: the bearing structure matched with the appearance of the battery to be measured is arranged on the top surface of the bracket, and the battery can be stably supported, the clamping structure on the top of the limiting column is matched with the rolling groove of the battery, the limiting disc and the limiting column are oppositely arranged to jointly position the battery, a stable measurement reference is formed, compared with manual measurement, the battery shaking or tilting is effectively avoided, the consistency of the measurement results of the same battery is ensured, the measurement precision is improved, and the measuring needle end of the linear measuring element is connected with the limiting column and the limiting disc, respectively, measurement is realized through the stable contact of the limiting column and the limiting disc with the battery, and the operation mode of manual holding of the measuring tool is replaced. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0016] Figure 1 The structure of the utility model is shown in the figure.

[0017] Figure 2 The main view structure schematic diagram is used for the utility model.

[0018] In the figure: battery to be measured 1, bracket 2, left side stop clamp 3, bottom plate 4, right side stop clamp 5, support frame 6, limiting column 7, limiting disc 8, linear measurement element 9, first positioning block 10, second positioning block 11, connecting assembly 12. DETAILED DESCRIPTION

[0019] 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, not 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.

[0020] As shown in Figure 1 , Figure 2 A lithium battery shoulder positioning and measuring device with a groove structure, comprising a bracket 2 for placing a battery to be measured 1, the bracket 2 is fixed on the bottom plate 4.

[0021] The bottom plate 4 serves as the basic bearing component of the whole device, providing a mounting reference surface for all other components, and ensuring the relative position accuracy of each component.

[0022] The bracket 2 is fixed in the middle position of the bottom plate 4 by bolts, and the top surface is processed with an arc-shaped groove matching the shape of the battery to be measured 1 as a bearing structure. The curvature radius of the arc-shaped groove matches the radius of the outer cylindrical surface of the battery to be measured 1, ensuring stable fitting when the battery to be measured 1 is placed, and avoiding shaking.

[0023] The clamping piece includes a left side stop clamp 3 and a right side stop clamp 5, which are symmetrically fixed on the bottom plate 4 and located at the side end of the bracket 2, forming a clamping space between them. Locking bolts are screwed on both the left side stop clamp 3 and the right side stop clamp 5.

[0024] The linear measurement element 9 is selected as a micrometer, and the main part is clamped in the space formed by the left side stop clamp 3 and the right side stop clamp 5. By tightening the locking bolts on both sides, the bolts pass through the stop clamp and abut against the side surface of the micrometer, achieving the fixation of the main body of the micrometer.

[0025] The support frame 6 is fixed on the bottom plate 4 and located on the side of the clamping piece away from the bracket 2. The support frame 6 is composed of a first positioning block 10 and a second positioning block 11. The first positioning block 10 is fixed on the bottom plate 4 by bolts. The second positioning block 11 is fixed on the top of the first positioning block 10 by a connecting assembly 12. The connecting assembly 12 adopts a key-shaped connecting piece. Two bolts are screwed on the key-shaped connecting piece. The bolts pass through the key-shaped connecting piece and are screwed to the first positioning block 10 and the second positioning block 11, thereby tightly connecting the two. The first positioning block 10 and the second positioning block 11 are respectively provided with oppositely arranged arc-shaped grooves. The radius of the arc-shaped grooves is matched with the outer diameter of the screw rod of the micrometer. The fixed end of the screw rod of the micrometer penetrates the passage formed by the arc-shaped grooves and is locked, thereby further enhancing the stability of the micrometer.

[0026] The limiting column 7 is fixed on the bottom plate 4 by bolts and located on the side of the bracket 2 close to the clamping piece and connected to one measuring needle end of the micrometer. The top of the limiting column 7 is provided with a clamping groove matched with the outer flared shape of the rolling groove of the battery to be measured as a clamping structure. The shape and size of the clamping groove are accurately matched with the outer flared shape of the rolling groove.

[0027] The limiting disc 8 is fixed on the other measuring needle end of the micrometer and is oppositely arranged with the limiting column 7. The limiting disc 8 can move along the measuring axis direction with the measuring needle of the micrometer.

[0028] The battery to be measured 1 is placed in the arc-shaped groove on the top surface of the bracket 2, so that the rolling groove part of the battery is aligned with the clamping groove on the top of the limiting column 7, and the outer flared mouth of the rolling groove is clamped into the clamping groove, thereby realizing the preliminary positioning of the battery at the rolling groove.

[0029] The knob of the micrometer is rotated, so that the measuring needle of the micrometer drives the limiting disc 8 to move towards the shoulder of the battery to be measured 1, until the limiting disc 8 is in close contact with the shoulder of the battery. At this time, the limiting column 7 and the limiting disc 8 jointly form positioning for the battery to be measured 1.

[0030] The value on the micrometer is read, which is the position parameter of the shoulder of the battery to be measured 1 relative to the rolling groove, thereby completing one measurement.

[0031] After the measurement is completed, the knob of the micrometer is rotated in the opposite direction, so that the limiting disc 8 moves away from the shoulder of the battery. The measured battery is removed, a new battery to be measured is replaced, and the above steps are repeated for the next measurement.

[0032] Actual working process:

[0033] The arc-shaped slot of the bracket 2 provides stable support for the battery to be measured 1, so that the battery is kept in a horizontal placement state, avoiding measurement errors caused by unstable placement. The clamping slot at the top of the limiting column 7 is matched with the outer flared port of the battery rolling groove. Through the clamping and matching of the clamping slot and the rolling groove, the battery is accurately positioned at the rolling groove position, the measurement reference point is determined, and the limiting disc 8 can move along the measurement axis under the driving of the micrometer measuring needle. When the limiting disc 8 contacts the shoulder of the battery, combined with the positioning action of the limiting column 7, the position of the shoulder of the battery is fixed relative to the position of the rolling groove, ensuring that the posture of the battery is consistent during each measurement, providing a reliable positioning basis for accurate measurement.

[0034] The linear measurement element is a micrometer, which uses the screw transmission principle to convert the micro displacement of the measuring needle into a readable scale value. The two measuring needle ends of the micrometer are connected to the limiting column 7 and the limiting disc 8, respectively. When the limiting column 7 is positioned with the battery rolling groove and the limiting disc 8 contacts the shoulder of the battery, the displacement of the micrometer measuring needle is the distance from the shoulder of the battery to the rolling groove. By reading the scale of the micrometer, the distance parameter can be directly obtained, realizing accurate measurement of the shoulder positioning of the rolling groove structure lithium battery.

[0035] The left stop clamp 3 and the right stop clamp 5 fix the main body of the micrometer through locking bolts, preventing the micrometer from moving horizontally during measurement. The first positioning block 10 and the second positioning block 11 of the support frame 6 support and position the screw rod of the micrometer through the arc-shaped groove, preventing the screw rod from shaking radially when moving axially. The two work together to ensure the stability of the micrometer during measurement, ensuring measurement accuracy. At the same time, all components are fixed on the bottom plate 4, forming a rigid structure as a whole, reducing the influence of external factors such as vibration on measurement, further ensuring the accuracy and repeatability of measurement.

[0036] The above only describes the preferred embodiments of the present application and does not limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A roll-groove-structured lithium battery shoulder positioning measurement device, characterized in that, The utility model relates to a battery testing device, including: a base plate (4); a bracket (2) fixed on the base plate (4), the top surface of the bracket (2) is provided with a bearing structure matched with the shape of a battery (1) to be tested; a linear measuring element (9) having two oppositely arranged measuring needles; two clamping pieces symmetrically fixed on the base plate (4) and located at the side ends of the bracket (2), forming a clamping space matched with the main body of the linear measuring element (9) between the two clamping pieces, the main body of the linear measuring element (9) is clamped in the clamping space; a limiting column (7) fixed on the base plate (4), the top of the limiting column (7) is provided with a clamping structure matched with the rolling groove of the battery (1) to be tested, one measuring needle end of the linear measuring element (9) is connected with the limiting column (7); a limiting disc (8) fixed on the other measuring needle end of the linear measuring element (9), the limiting disc (8) can move along the measuring axis direction of the linear measuring element (9) and is oppositely arranged with the limiting column (7) to jointly position the battery (1) to be tested.

2. The roll-groove-structured lithium battery shoulder positioning measurement device according to claim 1, characterized in that, The two clamping pieces are a left side stop clamp (3) and a right side stop clamp (5), lock bolts are respectively screwed on the left side stop clamp (3) and the right side stop clamp (5), the lock bolts pass through the clamping pieces and abut against the side surface of the linear measuring element (9).

3. The roll-groove-structured lithium battery shoulder positioning measurement device according to claim 1, characterized in that, It also includes a support frame (6) fixed on the base plate (4), and the fixed end of the screw rod of the linear measuring element (9) penetrates the positioning support frame (6).

4. The roll-groove-structured lithium battery shoulder positioning measurement device according to claim 3, characterized in that, The support frame (6) includes a first positioning block (10) and a second positioning block (11), the first positioning block (10) is fixed on the base plate (4), the second positioning block (11) is fixed on the top of the first positioning block (10) through a connecting assembly (12), and the first positioning block (10) and the second positioning block (11) are respectively provided with oppositely arranged arc-shaped grooves matched with the screw rod of the linear measuring element (9).

5. The roll-groove-structured lithium battery shoulder positioning measurement device according to claim 4, characterized in that, The connecting assembly (12) includes a key-shaped connecting piece, two bolts are screwed on the key-shaped connecting piece, and the bolts respectively pass through the key-shaped connecting piece and are screwed on the first positioning block (10) and the second positioning block (11).

6. The roll-groove-structured lithium battery shoulder positioning measurement device according to claim 1, characterized in that, The bearing structure on the top surface of the bracket (2) is an arc-shaped groove matched with the battery (1) to be tested.

7. The roll-groove-structured lithium battery shoulder positioning measurement device according to claim 1, characterized in that, The clamping structure on the top of the limiting column (7) is a clamping groove matched with the flared port form of the rolling groove of the battery (1) to be tested.

8. The roll-groove-structured lithium battery shoulder positioning measurement device according to claim 1, characterized in that, The linear measuring element (9) is a micrometer.

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