CN220490036U

CN220490036U - Flatness detection device

Info

Publication number: CN220490036U
Application number: CN202321878983.XU
Authority: CN
Inventors: 张猛
Original assignee: Xinwangda Power Technology Co ltd
Current assignee: Xinwangda Power Technology Co ltd
Priority date: 2023-07-17
Filing date: 2023-07-17
Publication date: 2024-02-13
Anticipated expiration: 2033-07-17

Abstract

The utility model relates to the technical field of power battery processing, and discloses a flatness detection device which comprises a base frame, a sliding frame and a detection piece, wherein the base frame is provided with a plurality of grooves; the sliding frame comprises a sliding rod and a connecting rod; the sliding rod is arranged on the base frame in a sliding way along the first direction, and the connecting rod is arranged on the sliding rod in a sliding way along the second direction; the detection parts are arranged on the connecting rod at intervals, are movably connected with the connecting rod along the first direction and are used for detecting the displacement of the detection parts relative to the connecting rod along the first direction. Through controlling the slide bar to remove along first direction, and then drive the connecting rod and the detection piece remove in the lump, make detection piece and electric core shell offset produce the displacement, through carrying out the calculation to the biggest difference of displacement volume between a plurality of detection pieces, can obtain the planarization of electric core shell, can not lead to the deformation of electric core shell in the measurement process, guarantee measurement accuracy, overall structure is simple simultaneously, reduce measuring cost.

Description

Flatness detection device

Technical Field

The utility model relates to the technical field of power battery processing, in particular to a flatness detection device.

Background

The shape of the power battery mainly comprises three types of cylinders, squares and soft packages, wherein the squares take up the main market position. The flatness of the surface of the battery cell shell of the square power battery can influence the coating of the battery cell and the winding core into the shell, so that the flatness measurement of the battery cell shell is very important. The traditional flatness measuring device of the battery cell shell mainly comprises a plug gauge measuring instrument and a laser plane interferometer; the plug gauge is needed to be inserted by the plug gauge measuring instrument, so that the surface of the battery cell shell is deformed, and the measurement precision is poor; and the use of a laser plane interferometer results in an increase in flatness measurement cost.

Disclosure of Invention

The utility model aims to solve the technical problems that:

the existing measurement mode of the battery cell shell is difficult to ensure measurement precision and cost control at the same time.

In order to solve the above technical problem, the present utility model provides a flatness detection apparatus, which is characterized by comprising:

a base frame;

the sliding frame comprises a sliding rod and a connecting rod; the sliding rod is arranged on the base frame in a sliding manner along a first direction, and the connecting rod is arranged on the sliding rod in a sliding manner along a second direction; and

The detection pieces are provided with at least two detection pieces, the detection pieces are arranged on the connecting rod at intervals, the detection pieces are movably connected with the connecting rod along the first direction, and the detection pieces are used for detecting the displacement of the detection pieces relative to the connecting rod in the first direction;

wherein the first direction intersects the second direction.

In one embodiment, the sliding rod and the connecting rod are both in a straight rod shape, the sliding rod extends along the second direction, the connecting rod extends along the third direction, and the sliding rod is arranged at two ends of the connecting rod along the third direction;

the first direction, the second direction and the third direction are intersected in pairs.

In one embodiment, the sliding rod is provided with an adjusting hole, and the adjusting hole extends in the second direction in a strip shape; the sliding frame further comprises an adjusting bolt, the adjusting bolt is arranged in the adjusting hole in a sliding mode, the adjusting bolt sequentially penetrates through the sliding rod and the connecting rod, the connecting rod is clamped and fixed on the sliding rod, the adjusting hole is formed in the sliding rod, the adjusting bolt is arranged in the adjusting hole in a sliding mode and connected with the connecting rod, the connecting rod can be adjusted along the second direction relative to the sliding rod, the specification and the size of different battery cell shells are adapted, and the use adaptability is improved. In one embodiment, the jack is arranged on the connecting rod, the jack is communicated with two sides of the connecting rod along the first direction, the detecting element is inserted into the jack, the number of the jacks is at least two, the jacks are arranged on the connecting rod along the third direction at intervals, the detecting elements are inserted into different jacks through the jacks arranged on the connecting rod at intervals, so that the setting positions of the detecting elements in the third direction are adjusted, the detecting element is suitable for the specification and the size of different battery cell shells, and the use adaptability is improved.

In one embodiment, the number of the engagement rods is at least two, and the engagement rods are arranged between the sliding rods at two ends at intervals in parallel along the second direction.

In one embodiment, the detecting member includes a probe, a sensing member, and a stopper; the probe is movably arranged on the connecting rod in a penetrating mode along the first direction, the sensing piece is connected with the probe, the sensing piece is used for detecting the displacement of the probe, the limiting block is sleeved on the outer side of the probe, the limiting block is in butt joint with the connecting rod, the probe is supported on the connecting rod, the initial position of each probe is guaranteed to be flush through the limiting block arranged on the probe, the accuracy of displacement detection is guaranteed when the displacement is detected, and the accuracy of deformation measurement of the battery cell shell is improved.

In one embodiment, the base frame comprises a first plate and a second plate; the first plate and the second plate are both in a straight plate shape, the first plate is arranged on one side of the sliding frame along the first direction, the second plate is connected with the first plate, and the sliding rod is arranged on the second plate in a sliding mode.

In one embodiment, the base frame further comprises a locating block; the positioning block is movably connected with the second plate, and is elongated and arranged along the first direction.

In one embodiment, the base frame further comprises a guide bar and a fixing member; the guide strip is arranged on one side, far away from the first plate, of the second plate, is in a strip shape and extends along a third direction, the guide strip is embedded into the positioning block, the positioning block can move along the third direction relative to the guide strip, the fixing piece is in threaded connection with the positioning block, and the fixing piece passes through the positioning block to abut against the guide strip so as to fix the positioning block on the guide strip;

the first direction, the second direction and the third direction are intersected in pairs, the positioning blocks are arranged on the base frame, the setting positions of the battery cell shells are positioned by adjusting the positions of the positioning blocks, the positioning of the battery cell shells in three directions is achieved, and the accuracy of the placement positions of the battery cell shells is ensured.

In one embodiment, the second plate is provided with a strip-shaped hole, and the strip-shaped hole extends along the first direction in a strip shape; the sliding frame further comprises a locking piece, the locking piece penetrates through the strip-shaped hole and is in threaded connection with the sliding rod, and the locking piece and the sliding frame are clamped and fixed on the second plate.

Compared with the prior art, the flatness detection device has the beneficial effects that:

the sliding rod is controlled to move along the first direction, so that the connecting rod and the detecting piece are driven to move together, the detecting piece and the cell shell are propped against to generate displacement, the flatness of the cell shell can be obtained by calculating the maximum difference value of the displacement between the detecting pieces, the deformation of the cell shell can not be caused in the measuring process, the measuring precision is ensured, the whole structure is simple, and the measuring cost is reduced; and the connecting rod can move along a second direction relative to the sliding rod, so that measurement of the cell shells with different sizes is realized, the measurement cost is further reduced, and the measurement adaptability is improved.

Drawings

FIG. 1 is a schematic view of a flatness detecting device according to an embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of a portion of circle A in FIG. 1;

FIG. 3 is an enlarged schematic view of a portion B of FIG. 1;

FIG. 4 is a schematic side view of the flatness detection apparatus of FIG. 1;

fig. 5 is a schematic structural view of the probe in fig. 1.

The meaning of the reference numerals in the drawings are:

100. flatness detecting means;

10. a base frame; 11. a first plate member; 12. a second plate member; 125. a bar-shaped hole; 13. a positioning block; 14. a guide bar; 15. a fixing member;

20. a carriage; 21. a slide bar; 215. an adjustment aperture; 22. a connecting rod; 225. a jack; 23. an adjusting bolt; 24. a locking piece;

30. a probe; 31. a probe; 32. an induction member; 33. a limiting block;

40. a display;

90. and a battery cell housing.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

It should be noted that, according to the embodiment of the present utility model, the X-axis direction and the Y-axis direction are in a coplanar and perpendicular relationship, and the Z-axis direction is perpendicular to the common plane of the X-axis and the Y-axis, so that for convenience of description, the first direction is defined as the X-axis direction, the second direction is defined as the Y-axis direction, and the third direction is defined as the Z-axis direction. The first direction, the second direction and the third direction are mutually perpendicular. Further, in the specification, the definition of vertical as floating by ninety degrees should be understood as vertical, i.e. the definition of the angle between the first direction and the second direction as being between eighty degrees and ninety degrees should be understood as vertical.

Referring to fig. 1 to 5, a flatness detecting device 100 according to an embodiment of the utility model includes a base frame 10, a carriage 20 and a detecting member 30. The base frame 10 is used for supporting and mounting the whole device; the carriage 20 comprises a slide bar 21 and an engagement bar 22; the slide bar 21 is arranged on the base frame 10 in a sliding way along a first direction, and the connecting rod 22 is arranged on the slide bar 21 in a sliding way along a second direction; the detecting members 30 are provided with at least two detecting members 30, the detecting members 30 are arranged on the connecting rod 22 at intervals, the detecting members 30 are movably connected with the connecting rod 22 along the first direction, the detecting members 30 are used for detecting the displacement of the detecting members relative to the connecting rod 22 in the first direction, and the sliding rods 21 and the connecting rod 22 are used for adjusting the setting positions of the detecting members 30 in the first direction and the second direction so as to meet the use requirements of the battery cell shells 90 with different specifications and sizes.

Further, the base frame 10 includes a first plate 11 and a second plate 12. The first plate 11 is in a straight plate shape, the first plate 11 extends along a plane direction common to the second direction and the third direction, the first plate 11 is arranged at one side of the carriage 20 along the first direction, the first plate 11 is used for contacting with an external detection environment, and the base frame 10 is supported and placed in the external detection environment; the second plate 12 is in a straight plate shape, the second plate 12 is connected with the first plate 11, the second plate 12 extends along a plane direction common to the first direction and the third direction, the second plate 12 is perpendicular to the first plate 11, the sliding rod 21 is slidably disposed on the second plate 12, and the first plate 11 and the second plate 12 enable the base frame 10 to be in an L-shaped structure. In this embodiment, the base frame 10 is an integral part, so as to improve the overall strength of the base frame 10 and ensure the stability of the base frame 10.

Further, the base frame 10 further includes a positioning block 13. The positioning block 13 is movably connected with the second plate 12, the positioning block 13 is in a strip shape and extends along the first direction, the positioning block 13 is propped against one side of the battery cell housing 90 along the third direction, the first plate 11 is propped against one side of the battery cell housing 90 along the first direction, the second plate 12 is propped against one side of the battery cell housing 90 along the second direction, and therefore the positioning and the installation of the three directions of the battery cell housing 90 are realized, and the accuracy of the detection position of the battery cell housing 90 is ensured.

Further, the base frame 10 further includes a guide bar 14 and a fixing member 15. The guide strip 14 is arranged on one side, far away from the first plate 11, of the second plate 12, the guide strip 14 is in a strip shape and extends along a third direction, the guide strip 14 is embedded into the positioning block 13 to provide support for the positioning block 13, the positioning block 13 can move along the third direction relative to the guide strip 14, the fixing piece 15 is in threaded connection with the positioning block 13, the fixing piece 15 passes through the positioning block 13 and is abutted against the guide strip 14 to fix the positioning block 13 on the guide strip 14, the support and adjustment guide of the positioning block 13 are realized through the guide strip 14, the positioning block 13 is fixed through the fixing piece 15, the whole structure is simple, and the cost is reduced. In the present embodiment, the guide bar 14 and the second plate 12 are integrated, so as to improve the strength between the guide bar 14 and the second plate 12 and the stability of supporting the positioning block 13.

Further, the sliding rod 21 is in a straight rod shape, the sliding rod 21 extends along the second direction, and the extending direction of the sliding rod 21 is perpendicular to the extending plane of the second plate 12. In this embodiment, the second plate 12 is provided with a strip-shaped hole 125, the strip-shaped hole 125 extends along the first direction, and the sliding rod 21 corresponds to the location of the strip-shaped hole 125; the carriage 20 further includes a locking member 24, wherein the locking member 24 passes through the bar-shaped hole 125 and is in threaded connection with the sliding rod 21, and the locking member 24 and the carriage 20 are clamped and fixed on the second plate 12, so as to realize adjustment and fixation of the sliding rod 21 relative to the base frame 10 along the first direction.

Further, the connecting rod 22 is in a straight rod shape, the connecting rod 22 extends along a third direction, the sliding rods 21 are arranged at two ends of the connecting rod 22 along the third direction, the extending direction of the connecting rod 22 is perpendicular to the extending direction of the sliding rods 21, and the connecting rod 22 is used for mounting and supporting the detecting member 30. In this embodiment, the sliding rod 21 is provided with an adjusting hole 215, and the adjusting hole 215 extends in a strip shape along the second direction; the sliding frame 20 further comprises an adjusting bolt 23, the adjusting bolt 23 is slidably disposed in the adjusting hole 215, and the adjusting bolt 23 sequentially passes through the sliding rod 21 and the connecting rod 22 to clamp and fix the connecting rod 22 on the sliding rod 21, thereby realizing adjustment and fixation of the connecting rod 22 relative to the sliding rod 21 along the second direction.

Further, the engagement rod 22 is provided with a receptacle 225. The jack 225 is circular through hole, the jack 225 is along the both sides of first direction intercommunication connecting rod 22, this detecting element 30 inserts and establishes in this jack 225, the setting quantity of jack 225 is two at least, and the jack 225 is along third direction interval arrangement on connecting rod 22, through inserting detecting element 30 in different jacks 225, can adjust the control to detecting element 30's setting position, and then cooperate slide bar 21 to adjust along first direction relative bed frame 10, connecting rod 22 adjusts along the second direction relative slide bar 21, realize the omnidirectional three-dimensional regulation control to detecting element 30 setting position, in order to satisfy the detection demand of electric core shell 90 of different specifications, improve the adaptability of equipment.

Further, the number of the engagement bars 22 is at least two, and the engagement bars 22 are arranged between the sliding bars 21 at two ends at intervals in parallel along the second direction, so as to realize the overall flatness detection of the top surface of the battery cell housing 90. It will be appreciated that the specific number of the connection rods 22 is not particularly limited herein, so long as it is ensured that the cell housing 90 can be inspected in a common planar direction of the second direction and the third direction.

Further, the detecting member 30 includes a probe 31, a sensing member 32 and a stopper 33. The probe 31 is arranged in a strip shape along a first direction, the probe 31 is movably arranged on the connecting rod 22 along the first direction, the sensing piece 32 is connected with the probe 31, and the sensing piece 32 is used for detecting the displacement of the probe 31; the limiting block 33 is sleeved on the outer side of the probe 31, and the limiting block 33 is abutted against the connecting rod 22 so as to support the probe 31 on the connecting rod 22, and the position of the probe 31 on the connecting rod 22 can be set on the same horizontal plane by adjusting the position of the limiting block 33 on the probe 31, so that the zeroing operation of detecting the initial position is realized. In this embodiment, the sensing element 32 is a displacement sensor.

Further, the flatness detecting device 100 further includes a display 40. The display 40 is arranged at one side of the carriage 20 along the third direction, the display 40 is electrically connected with each detecting element 30 to display the displacement of the probes 31 detected by each sensing element 32, the detecting personnel can intuitively see the displacement of each probe 31, the operation is simpler and more convenient, and the user experience is improved.

The working process of the utility model is as follows: when the electric core shell is used, the setting position of the positioning block 13 is adjusted according to the specification and the size of the electric core shell 90, so that the middle position of the electric core shell 90 coincides with the middle position of the first plate 11 in the third direction, and after the adjustment is finished, the setting position of the electric core shell 90 is positioned and installed through the first plate 11, the second plate 12 and the positioning block 13; after the installation, the setting position of each detecting member 30 is adjusted, the position of the detecting member 30 in the second direction is adjusted by moving the connecting rod 22 relative to the slide rod 21 in the second direction, and the position of the detecting member 30 in the third direction is adjusted by inserting the detecting member 30 into different insertion holes 225; after the position of the detecting member 30 is adjusted, the locking member 24 is loosened, the whole carriage 20 moves along the first direction towards the direction close to the cell housing 90, the cell housing 90 jacks up each probe 31, the sensing member 32 correspondingly detects the displacement amount jacked up by each probe 31 and displays the displacement amount through the display 40, and the flatness between two points can be obtained by calculating the difference value between the two displacement amounts.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A flatness detection apparatus (100), characterized by comprising:

a base frame (10);

the sliding frame (20), the sliding frame (20) comprises a sliding rod (21) and a connecting rod (22); the sliding rod (21) is arranged on the base frame (10) in a sliding manner along a first direction, and the connecting rod (22) is arranged on the sliding rod (21) in a sliding manner along a second direction; and

The detection pieces (30) are arranged at least two, the detection pieces (30) are arranged on the connecting rod (22) at intervals, the detection pieces (30) are movably connected with the connecting rod (22) along the first direction, and the detection pieces (30) are used for detecting the displacement of the detection pieces per se relative to the connecting rod (22) in the first direction;

wherein the first direction intersects the second direction.

2. The flatness detection apparatus (100) according to claim 1, wherein the slide bar (21) and the engagement bar (22) each have a straight bar shape, the slide bar (21) extends in the second direction, the engagement bar (22) extends in a third direction, and the slide bar (21) is provided at both ends of the engagement bar (22) in the third direction;

3. The flatness detection apparatus (100) according to claim 2, characterized in that the slide bar (21) is provided with an adjustment hole (215), the adjustment hole (215) extending in the second direction in a long strip shape; the sliding frame (20) further comprises an adjusting bolt (23), the adjusting bolt (23) is arranged in the adjusting hole (215) in a sliding mode, and the adjusting bolt (23) sequentially penetrates through the sliding rod (21) and the connecting rod (22) to clamp and fix the connecting rod (22) on the sliding rod (21).

4. The flatness detection apparatus (100) according to claim 2, wherein the engagement rod (22) is provided with insertion holes (225), the insertion holes (225) communicate with both sides of the engagement rod (22) in the first direction, the detecting pieces (30) are inserted into the insertion holes (225), the number of the insertion holes (225) is at least two, and the insertion holes (225) are arranged on the engagement rod (22) at intervals in the third direction.

5. The flatness detection apparatus (100) according to any one of claims 1 to 4, wherein the number of the engagement bars (22) is at least two, and the engagement bars (22) are arranged between the slide bars (21) at both ends in parallel at intervals along the second direction.

6. The flatness detection apparatus (100) according to claim 1, wherein the detecting member (30) includes a probe (31), a sensing member (32), and a stopper (33); the probe (31) is movably arranged on the connecting rod (22) in a penetrating mode along the first direction, the sensing piece (32) is connected with the probe (31), the sensing piece (32) is used for detecting the displacement of the probe (31), the limiting block (33) is sleeved on the outer side of the probe (31), and the limiting block (33) is abutted to the connecting rod (22) so as to support the probe (31) on the connecting rod (22).

7. The flatness detection apparatus (100) according to claim 1, wherein the base frame (10) includes a first plate (11) and a second plate (12); the first plate (11) and the second plate (12) are both in a straight plate shape, the first plate (11) is arranged on one side of the sliding frame (20) along the first direction, the second plate (12) is connected with the first plate (11), and the sliding rod (21) is arranged on the second plate (12) in a sliding mode.

8. The flatness detection apparatus (100) according to claim 7, characterized in that the base frame (10) further comprises a positioning block (13); the positioning block (13) is movably connected with the second plate (12), and the positioning block (13) is arranged in a strip shape along the first direction in an extending mode.

9. The flatness detection apparatus (100) according to claim 8, wherein the base frame (10) further comprises a guide bar (14) and a fixing member (15); the guide strip (14) is arranged on one side, far away from the first plate (11), of the second plate (12), the guide strip (14) is arranged in a strip shape and extends along a third direction, the guide strip (14) is embedded into the positioning block (13), the positioning block (13) can move along the third direction relative to the guide strip (14), the fixing piece (15) is in threaded connection with the positioning block (13), and the fixing piece (15) passes through the positioning block (13) to abut against the guide strip (14) so as to fix the positioning block (13) on the guide strip (14);

10. The flatness detection apparatus (100) according to claim 7, characterized in that the second plate member (12) is provided with a strip-shaped hole (125), the strip-shaped hole (125) extending in the first direction in a strip-shape; the sliding frame (20) further comprises a locking piece (24), the locking piece (24) penetrates through the strip-shaped hole (125) and is in threaded connection with the sliding rod (21), and the locking piece (24) and the sliding frame (20) are clamped and fixed on the second plate (12).