Visual detection spacing device and battery cell detection equipment

Abstract

The utility model provides a visual detection spacing device and battery cell detection equipment, and the visual detection spacing device comprises a mounting plate which is installed on a double-shaft moving mechanism so as to move along a first direction and a second direction; the first detection group comprises a first bidirectional driving mechanism, a first height detector and a first image detector, and the first bidirectional driving mechanism can drive the first height detector and the first image detector to symmetrically move in the second direction; the second detection group comprises a second bidirectional driving mechanism, a second height detector and a second image detector, and the second bidirectional driving mechanism can drive the second height detector and the second image detector to symmetrically move in the second direction; the center lines of the two sets of symmetrical movement coincide, and the first height detector, the second height detector, the second image detector and the first image detector are sequentially arranged in the second direction. According to the visual detection spacing device, the number of motors can be reduced, the space is saved, and the structure is simple.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of battery production, and more particularly relates to a visual detection spacing device and a battery cell detection equipment. BACKGROUND

[0002] In production, the entire lithium battery Pack box needs to be photographed and measured in distance, the height of two battery cells needs to be detected, and the two battery cells need to be photographed and detected, so two profile gauges and two line scan cameras need to work together. Two profile gauges need to be adjusted in position to measure two rows of pole columns first, and then the line scan cameras need to be adjusted in position to take pictures, so the distance needs to be changed between the two line scan cameras and the two profile gauges, at least four sets of servo motors are needed, the structure is complex, and the space is not allowed. CONTENT OF THE UTILITY MODEL

[0003] The embodiment of the application provides a visual detection spacing device which can reduce the number of motors, save space and has a simple structure.

[0004] The technical scheme adopted by the embodiment of the application is as follows: a visual detection spacing device is provided, which comprises:

[0005] A mounting plate is arranged on a double-shaft moving mechanism to move along a first direction and a second direction, and the first direction and the second direction are perpendicular to each other;

[0006] A first detection group comprises a first bidirectional driving mechanism, a first height detector and a first image detector, the first bidirectional driving mechanism can drive the first height detector and the first image detector to move symmetrically along the second direction on the mounting plate; and

[0007] A second detection group comprises a second bidirectional driving mechanism, a second height detector and a second image detector, the second bidirectional driving mechanism can drive the second height detector and the second image detector to move symmetrically along the second direction on the mounting plate;

[0008] The center line of the symmetric movement of the first detection group coincides with the center line of the symmetric movement of the second detection group, and the first height detector, the second height detector, the second image detector and the first image detector are arranged in sequence along the second direction.

[0009] Further, the mounting plate comprises a first plate surface and a second plate surface which are away from each other;

[0010] The first height detector is arranged on the first plate surface, and the first image detector is arranged on the second plate surface;

[0011] The second height detector is arranged on the first plate surface, and the second image detector is arranged on the second plate surface.

[0012] Further, a guide assembly is included, the guide assembly includes a guide rail, two first sliders and two second sliders, the guide rail is arranged on the second surface along the second direction, the first sliders and the second sliders are slidingly arranged on the guide rail, and the two second sliders are located between the two first sliders;

[0013] The mounting plate is provided with a through opening extending along the second direction;

[0014] The first height detector is connected with one of the first sliders, and the first image detector is connected with another of the first sliders through the opening;

[0015] The second height detector is connected with one of the second sliders, and the second image detector is connected with another of the second sliders through the opening.

[0016] Further, the first bidirectional driving mechanism and the second bidirectional driving mechanism are arranged on the first surface, the first bidirectional driving mechanism is connected with the first image detector through the opening, and the second bidirectional driving mechanism is connected with the second image detector through the opening.

[0017] Further, the first bidirectional driving mechanism and the second bidirectional driving mechanism are arranged on the first surface, the first bidirectional driving mechanism is connected with the first image detector through the opening, and the second bidirectional driving mechanism is connected with the second image detector through the opening.

[0018] Further, the first bidirectional driving mechanism includes a first driver, a first screw rod and two first nuts, the first screw rod is rotatably arranged on the mounting plate and arranged along the second direction, the first screw rod includes a first threaded segment and a second threaded segment, the screw thread directions of the first threaded segment and the second threaded segment are opposite, one of the first nuts is matched and sleeved on the first threaded segment, and the other of the first nuts is matched and sleeved on the second threaded segment, the first height detector is connected with one of the first nuts, the first image detector is connected with the other of the first nuts, and the first driver is used for driving the first screw rod to rotate.

[0019] Further, the second bidirectional driving mechanism comprises a second driver, a second screw rod and two second nuts, the second screw rod is rotatably arranged on the mounting plate and arranged along the second direction, the second screw rod comprises a third threaded section and a fourth threaded section, the third threaded section is opposite to the fourth threaded section in terms of threaded direction, one second nut is matched and sleeved on the third threaded section, and the other second nut is matched and sleeved on the fourth threaded section, the second height detector is connected with one second nut, the second image detector is connected with the other second nut, and the second driver is used for driving the second screw rod to rotate.

[0020] Further, a light source is further included, and the mounting plate is arranged to provide light when the first image detector and the second image detector capture images.

[0021] Further, a substrate and a third driver are further included, the substrate is connected with the biaxial moving mechanism, the mounting plate is movably arranged on the substrate along a third direction, the third driver is used for driving the mounting plate to move, and the third direction is perpendicular to the first direction and the second direction.

[0022] The embodiment of the present application further provides an electric core detection device, which comprises a biaxial moving mechanism and the visual detection spacing device as described above, and the biaxial moving mechanism is movable along the first direction and the second direction.

[0023] The visual detection spacing device provided by the embodiment of the present application has the following beneficial effects:

[0024] 1.The visual detection spacing device of the embodiment of the present application, when measuring a plurality of battery cells arranged in an array (the battery cells have A and B poles and are arranged in a second direction in turn, the first direction is the row, and the second direction is the column), the second bidirectional driving mechanism can first adjust the spacing between the second height detector and the second image detector to the spacing between the two adjacent poles of the upper and lower rows (for example, the spacing between the B pole of the first row and the A pole of the second row), and then the first bidirectional driving mechanism adjusts the spacing between the first height detector and the second height detector to equal the spacing between the two poles of the same battery cell (i.e., the spacing between the A and B poles). Due to the symmetrical motion and the coincidence of the center lines of the symmetrical motion of the first detection group and the symmetrical motion of the second detection group, the first height detector, the second height detector, the second image detector, and the first image detector are arranged in the second direction in turn, and at this time, the spacing between the first image detector and the second image detector is equal to the spacing between the two poles of the same battery cell (i.e., the spacing between the A and B poles). After adjusting the position, the mounting plate is moved along the first direction by the double-shaft moving mechanism, and the first height detector and the second height detector detect the height of the two poles of the battery cell in the same row, respectively. After one row of height detection is completed, the mounting plate is moved along the second direction by the double-shaft moving mechanism by one row spacing, so that the first height detector and the second height detector detect the height of the poles of the next row of battery cells. At this time, the second image detector and the first image detector are aligned with the two poles of the previous row of battery cells, respectively, and when the next row of battery cells is being detected in height, the previous row can be detected in image at the same time.

[0025] 2.The visual detection spacing device provided by the embodiment of the present application can realize the spacing adjustment of the four detectors through two bidirectional driving mechanisms, thereby reducing the use of driving mechanisms (such as motors), saving space, and having a simple structure. In addition, when the battery cell is modified and the pole spacing and row spacing are changed, the spacing of each detector can be adjusted again through the above-mentioned method to adapt to the new battery cell, thereby having good applicability. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0027] Figure 1 The perspective structural schematic diagram of the visual detection spacing device provided by the embodiment of the present application;

[0028] Figure 2 The perspective structural schematic diagram of the visual detection spacing device provided by the embodiment of the present application from another angle;

[0029] Figure 3 A top view schematic diagram of the visual detection spacing device provided by the embodiment of the present application when detecting the battery cell array.

[0030] In the drawings, various reference numerals are used to refer to the same or similar elements throughout the several views of the drawings.

[0031] 10, mounting plate; 11, first plate surface; 12, second plate surface; 13, opening;

[0032] 20, base plate;

[0033] 30, first detection group; 31, first bidirectional driving mechanism; 311, first driver; 312, first screw rod; 313, first nut; 32, first height detector; 33, first image detector; 34, first connecting plate;

[0034] 40, second detection group; 41, second bidirectional driving mechanism; 411, second driver; 412, second screw rod; 413, second nut; 42, second height detector; 43, second image detector; 44, second connecting plate;

[0035] 50, guiding assembly; 51, guide rail; 52, first sliding block; 53, second sliding block;

[0036] 60, light source; 70, third driver;

[0037] 80, battery cell; 81, A pole; 82, B pole. DETAILED DESCRIPTION

[0038] In order to make the technical problems to be solved by the present application, technical solutions and beneficial effects more clearly understood, the present application will be further described in detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0039] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0040] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like, indicate directions or positions based on the directions or positions shown in the drawings, and are used for convenience only to describe the application and simplify the description, and thus cannot be construed as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus cannot be construed as limiting the application.

[0041] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and cannot be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined as "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0042] Please refer to Figure 1 and Figure 2 , the visual detection spacing device provided by the embodiment of the application will be described.

[0043] Please refer to Figure 1 and Figure 2 , the visual detection spacing device provided by the embodiment of the application, comprising a mounting plate 10, a first detection group 30 and a second detection group 40.

[0044] Please refer to Figure 1 and Figure 2 , the mounting plate 10 is installed on a double-axis moving mechanism (shown in the figure) to move in a first direction and a second direction, and the first direction and the second direction are perpendicular. The mounting plate is a basic load-bearing component of the entire device, which is installed on the double-axis moving mechanism. The double-axis moving mechanism can drive the mounting plate 10 to move in two perpendicular directions, one of which is defined as the first direction (for example, left and right), and the other perpendicular direction is defined as the second direction (for example, front and back). For example, when detecting the arranged products (batteries 80) in a production workshop, the mounting plate 10 can be flexibly moved to the position above the product to be detected by the double-axis moving mechanism, so as to facilitate the detection work of the subsequent components.

[0045] Please refer to Figure 1 and Figure 2 , the first detection group 30 comprises a first bidirectional driving mechanism 31, a first height detector 32 and a first image detector 33, and the first bidirectional driving mechanism 31 can drive the first height detector 32 and the first image detector 33 to move symmetrically along the second direction of the mounting plate 10.

[0046] Please refer to Figure 1and Figure 2 The first bidirectional driving mechanism 31 can drive the first height detector 32 and the first image detector 33 to move symmetrically, ensuring that they maintain a relative symmetrical relationship during movement.

[0047] The first height detector 32 is used to detect the height information of an object. For example, when detecting the pole of the battery cell 80, the first height detector 32 can accurately measure the height value of the pole of the battery cell 80, and it can move along the second direction (i.e., the front and back direction) to detect the height of objects at different positions. The first height detector 32 can be a laser range finder or a profilometer.

[0048] The first image detector 33 is used to collect image information of an object and can be a CCD camera or a CMOS camera or a line scan camera. The first image detector 33 is installed on the mounting plate 10 and can also move along the second direction to take pictures of the target object at the appropriate position, etc., to obtain image data for subsequent analysis and judgment, such as detecting poor welding of the pole of the battery cell 80, such as welding bumps.

[0049] Referring to Figure 1 and Figure 2 The second detection group 40 includes a second bidirectional driving mechanism 41, a second height detector 42, and a second image detector 43. The second bidirectional driving mechanism 41 can drive the second height detector 42 and the second image detector 43 to move symmetrically along the second direction of the mounting plate 10.

[0050] The second bidirectional driving mechanism 41 is similar to the first bidirectional driving mechanism 31 and is also a structure component with bidirectional driving capability. The second bidirectional driving mechanism 41 is responsible for driving the second height detector 42 and the second image detector 43 to move symmetrically, ensuring the symmetry and coordination of the two during movement.

[0051] The second height detector 42 has the same function as the first height detector 32, which is to detect the height information of an object, and can be a laser range finder or a profilometer.

[0052] The second image detector 43 is similar to the first image detector 33 and is used to obtain the image of an object and can be a CCD camera or a CMOS camera or a line scan camera.

[0053] The center line of the symmetrical movement of the first detection group 30 coincides with the center line of the symmetrical movement of the second detection group 40, and the first height detector 32, the second height detector 42, the second image detector 43 and the first image detector 33 are arranged in sequence along the second direction. The distance between the first height detector 32 and the second height detector 42 is equal to the distance between the second image detector 43 and the first image detector 33, which can be adjusted, and the distance between the second height detector 42 and the second image detector 43 can be adjusted as needed.

[0054] Referring to Figure 3 In operation, a plurality of battery cells 80 are arranged in an array, the first direction is the row direction, and the second direction is the column direction. The battery cell 80 has an A pole 81 and a B pole 82, and the A pole 81 and the B pole 82 are arranged in sequence along the second direction on the same battery cell 80.

[0055] Referring to Figure 3 The second bidirectional driving mechanism 41 is started to drive the second height detector 42 and the second image detector 43 to move symmetrically in the second direction (front-back direction), so that the distance between the second height detector 42 and the second image detector 43 is accurately adjusted to the distance between the adjacent two poles in the upper and lower rows, that is, the distance L1 between the first row of B poles 82 and the second row of A poles 81.

[0056] Referring to Figure 3 Then, the first bidirectional driving mechanism 31 starts to drive the first height detector 32 and the second height detector 42 to move symmetrically in the second direction (front-back direction), so that the distance between the first height detector 32 and the second height detector 42 is equal to the distance between the two poles of the same battery cell 80, that is, the distance between the A pole 81 and the B pole 82. Since the center line of the symmetrical movement of the first detection group 30 coincides with the center line of the symmetrical movement of the second detection group 40, and the first height detector 32, the second height detector 42, the second image detector 43 and the first image detector 33 are arranged in sequence along the second direction, the distance between the first image detector 33 and the second image detector 43 is also naturally equal to the distance between the two poles of the same battery cell 80 (that is, the distance L2 between the A pole 81 and the B pole 82).

[0057] After the distance between each detector is adjusted, the biaxial moving mechanism starts to work, driving the mounting plate 10 to move along the first direction (left-right direction). During the movement, the first height detector 32 and the second height detector 42 are aligned with the A-pole 81 and the B-pole 82 of the same row of battery cells 80 respectively, and the height of the two poles of the row of battery cells 80 is detected, the height data of the poles of all battery cells 80 in the row is obtained, and the data can be transmitted to the external data processing device (such as a computer) connected thereto in real time for recording and subsequent analysis.

[0058] When the height detection of a row of battery cells 80 is completed, the biaxial moving mechanism works again, driving the mounting plate 10 to move along the second direction (front-back direction) by a row distance, so that the first height detector 32 and the second height detector 42 can be aligned with the poles of the next row of battery cells 80, preparing for height detection of the poles of the next row of battery cells 80. Due to the reasonable setting of the distance between each detector, the second image detector 43 and the first image detector 33 are aligned with the two poles of the previous row of battery cells 80 respectively at this time, and while the first height detector 32 and the second height detector 42 are detecting the height of the next row of battery cells 80, the second image detector 43 and the first image detector 33 use their image acquisition functions to detect the image of the previous row of battery cells 80, and obtain the appearance image information of the poles of the battery cells 80. Similarly, the image data is also transmitted to the external data processing device for further checking the welding condition of the poles of the battery cells 80.

[0059] When the battery cells 80 are modified, the pole distance and the row distance are changed, and the above adjustment process can be repeated according to the specific values of the same pole distance and the row distance of the modified battery cells 80. After the above adjustment is completed, the new battery cells 80 array can be detected again according to the normal process, and the device can continue to accurately obtain the related information of the poles of the battery cells 80, showing good adaptability.

[0060] The visual detection distance device provided by the embodiment of the application can realize the distance adjustment of the four detectors through two bidirectional driving mechanisms, thereby reducing the use of driving mechanisms (such as motors), saving space, and having a simple structure. In addition, when the battery cells 80 are modified and the pole distance and the row distance are changed, the distance between each detector can be adjusted again through the above method, so that the device can adapt to the new battery cells 80 and has good applicability.

[0061] Referring to Figure 1 and Figure 2 , further, the mounting plate 10 comprises a first plate surface 11 and a second plate surface 12 which are away from each other; the first height detector 32 is arranged on the first plate surface 11, and the first image detector 33 is arranged on the second plate surface 12; the second height detector 42 is arranged on the first plate surface 11, and the second image detector 43 is arranged on the second plate surface 12.

[0062] The two plate surfaces of the mounting plate 10 provide different position areas for the installation of subsequent detection components, facilitating the reasonable layout of the components and enabling orderly detection work.

[0063] The arrangement of the various detectors on the two plate surfaces of the mounting plate 10 is for the rational use of space. The first plate surface 11 is provided with the first height detector 32 and the second height detector 42, which are conveniently adjusted in spacing and cooperatively detect height, avoiding disordered layout and complex transmission. The second plate surface 12 is provided with the first image detector 33 and the second image detector 43, which cooperate with the components of the first plate surface 11 to enable synchronous height detection and image detection, making the entire device more compact and the detection more efficient.

[0064] With reference to Figure 1 and Figure 2 , the visual detection spacing device further comprises a guide assembly 50, the guide assembly 50 comprising a guide rail 51, two first sliders 52, and two second sliders 53, the guide rail 51 being provided on the second plate surface 12 along the second direction, the first sliders 52 and the second sliders 53 being slidingly provided on the guide rail 51, and the two second sliders 53 being located between the two first sliders 52.

[0065] The mounting plate 10 is provided with a through opening 13 extending along the second direction, which is like a "passage" opened on the mounting plate 10, penetrating from one side of the mounting plate 10 to the other side. The opening 13 is used to enable some components to pass through the mounting plate 10, achieving the connection and layout between different plate surfaces.

[0066] The first height detector 32 is connected to one of the first sliders 52, and the first image detector 33 is connected to the other first slider 52 through the opening 13. Both the first height detector 32 and the first image detector 33 can move through the guide rail 51.

[0067] The second height detector 42 is connected to one of the second sliders 53, and the second image detector 43 is connected to the other second slider 53 through the opening 13. Both the second height detector 42 and the second image detector 43 can move through the guide rail 51.

[0068] Through such a structural design, the guide assembly 50 and the opening 13 on the mounting plate 10 are used to reasonably connect the various detectors with the sliders and enable movement along the guide rail 51.

[0069] With reference to Figure 1 and Figure 2The first bidirectional driving mechanism 31 and the second bidirectional driving mechanism 41 are arranged on the first plate surface 11, the first bidirectional driving mechanism 31 is connected with the first image detector 33 through the opening 13, and the second bidirectional driving mechanism 41 is connected with the second image detector 43 through the opening 13.

[0070] That is, the two bidirectional driving mechanisms are arranged on the first plate surface 11 and can be connected with the two image detectors on the first plate surface 11, and simultaneously connected with the two image detectors on the second plate surface 12 through the opening 13, so that the spatial layout of the device is optimized, the spatial conflict between components is avoided, and the bidirectional symmetric driving of the height detectors is effectively realized.

[0071] With reference to Figure 1 and Figure 2 , the first bidirectional driving mechanism 31 and the second bidirectional driving mechanism 41 are arranged on the second plate surface 12 in a third direction, the first height detector 32 is connected with the first bidirectional driving mechanism 31 through a first connecting plate 34, the second height detector 42 is connected with the second bidirectional driving mechanism 41 through a second connecting plate 44, the positions of the first height detector 32 and the second height detector 42 in the third direction are the same, and the third direction is perpendicular to the first direction and the second direction.

[0072] Through the above structure, the first bidirectional driving mechanism 31 and the second bidirectional driving mechanism 41 are arranged on the second plate surface 12 in a reasonable interval, and are connected with the corresponding height detectors through the connecting plates, while ensuring that the positions of the height detectors in the third direction are the same, so that the connection between the components of the entire device is more close, the collaborative work is more smooth, the detection object such as the battery cell 80 can be more efficiently and accurately detected, and the advantages of each part of the structure in realizing the detection function are fully exerted.

[0073] With reference to Figure 1 and Figure 2 , the first bidirectional driving mechanism 31 comprises a first driver 311, a first lead screw 312 and two first nuts 313, the first lead screw 312 is rotatably arranged on the mounting plate 10 and arranged in the second direction, the first lead screw 312 comprises a first threaded segment and a second threaded segment, the screw directions of the first threaded segment and the second threaded segment are opposite, one of the first nuts 313 is matched and sleeved on the first threaded segment, and the other of the first nuts 313 is matched and sleeved on the second threaded segment, the first height detector 32 is connected with one of the first nuts 313, the first image detector 33 is connected with the other of the first nuts 313, and the first driver 311 is used for driving the first lead screw 312 to rotate.

[0074] The first bidirectional driving mechanism 31 is a bidirectional screw-nut mechanism. The first driver 311 can be a servo motor. When the positions of the detectors need to be adjusted, the first driver 311 starts to work. It drives the first screw rod 312 to rotate. Since the first screw rod 312 is arranged on the mounting plate 10 along the second direction (for example, the front-back direction), and the first screw thread segment and the second screw thread segment contained therein have opposite screw thread directions.

[0075] When the first screw rod 312 rotates, the two first nuts 313 respectively sleeved on the first screw thread segment and the second screw thread segment will move relatively. For example, one first nut 313 will move forward along the first screw rod 312, and the other first nut 313 will move backward, because they are matched with the screw rod by opposite screw threads. The first height detector 32 connected with one of the first nuts 313 will move along the second direction with the corresponding first nut 313; at the same time, the first image detector 33 connected with the other first nut 313 will also move in the second direction in the opposite direction with the first nut 313.

[0076] By controlling the rotation direction and rotation number of the first screw rod 312 by the first driver 311, the distance between the first height detector 32 and the first image detector 33 and their positions in the second direction can be accurately adjusted, so as to meet the layout requirements when different battery cells 80 and other detection objects are detected, so that they can accurately carry out subsequent height detection and image acquisition and other work.

[0077] Referring to Figure 1 and Figure 2 , the second bidirectional driving mechanism 41 includes a second driver 411, a second screw rod 412, and two second nuts 413. The second screw rod 412 is rotatably arranged on the mounting plate 10 and arranged along the second direction. The second screw rod 412 includes a third screw thread segment and a fourth screw thread segment, the screw thread directions of the third screw thread segment and the fourth screw thread segment are opposite, one second nut 413 is matched and sleeved on the third screw thread segment, the other second nut 413 is matched and sleeved on the fourth screw thread segment, the second height detector 42 is connected with one second nut 413, the second image detector 43 is connected with the other second nut 413, and the second driver 411 is used to drive the second screw rod 412 to rotate.

[0078] The second bidirectional driving mechanism 41 is a bidirectional screw-nut mechanism. The second driver 411 can be a servo motor. When the positions of the related detectors need to be adjusted to adapt to different battery cell 80 specifications or detection requirements, the second bidirectional driving mechanism 41 will be started. The second driver 411 starts to work, which provides power for the entire driving process and drives the second screw rod 412 to rotate.

[0079] The second screw rod 412 is rotatably mounted on the mounting plate 10, and is arranged in a second direction (such as the front-rear direction, just like the column direction of the array of the battery cells 80). The second screw rod 412 has a third threaded section and a fourth threaded section, and the threaded directions of the two threaded sections are opposite. When the second screw rod 412 starts to rotate under the driving of the second driver 411, the two second nuts 413 respectively matched with the third threaded section and the fourth threaded section will produce relative movement due to the action of the threads. For example, if the second nut 413 matched with the third threaded section moves in a direction (such as the front direction) along the screw rod, the other second nut 413 matched with the fourth threaded section will move in the opposite direction (that is, the rear direction).

[0080] Since the second height detector 42 is connected with one of the second nuts 413, it will move along the second direction with the corresponding second nut 413; similarly, the second image detector 43 is connected with the other second nut 413, and it will also move in the corresponding direction along the second direction with the connected second nut 413.

[0081] By precisely controlling the rotation direction, rotation speed and rotation number of the second screw rod 412 by the second driver 411, the distance between the second height detector 42 and the second image detector 43 and the positions of them in the second direction can be precisely adjusted.

[0082] Referring to Figure 1 and Figure 2 , the visual detection distance device of the embodiment of the application further comprises a light source 60 arranged on the mounting plate 10, for lighting when the first image detector 33 and the second image detector 43 take images. The light source 60 is arranged on the mounting plate 10, and when image shooting is to be performed, the light source 60 is turned on to emit light to the direction where the detection target is located, so that the surface of the detection object such as the electrode post of the battery cell 80 is clearly presented, facilitating the two image detectors to shoot clear images, and assisting the whole device to better complete the detection task.

[0083] When taking images, attention should be paid to the depth of field. If the height difference between the electrode posts is greater than the depth of field of the image detector, the image will be blurred.

[0084] Therefore, referring to Figure 1 and Figure 2The embodiment of the present application makes the following improvements: the visual detection spacing device of the embodiment of the present application further comprises a base plate 20 and a third driver 70, the base plate 20 is connected with the double-shaft moving mechanism, the mounting plate 10 is movably arranged on the base plate 20 along a third direction, and the third driver 70 is used to drive the mounting plate 10 to move, and the third direction is perpendicular to the first direction and the second direction. That is, the mounting plate 10 can be driven to move along the third direction by the third driver 70, so that the positions of the two height detectors and the two image detectors in the third direction are changed. Specifically, the third direction can be a height direction.

[0085] For the above problems, first, the whole visual detection spacing device starts to work, the base plate 20 can move along the first direction and the second direction under the driving of the double-shaft moving mechanism, so that the mounting plate 10 reaches a suitable position to detect the battery cell 80.

[0086] Then, each component on the mounting plate 10 performs height detection work on the electrode posts of the first row of battery cells 80 according to the flow, and after obtaining the corresponding height data, the average value of the height difference between the electrode posts is calculated.

[0087] When image shooting is to be performed, the depth of field of the image detector needs to be considered. If it is found that the height difference between the electrode posts is greater than the depth of field of the image detector, the image shot will be blurred and cannot meet the detection requirements. At this time, the third driver 70 starts to play a role, which drives the mounting plate 10 to move along the third direction (that is, the direction perpendicular to the first direction and the second direction, such as the up-down direction), and adjusts the position of the mounting plate 10 in this direction to compensate for the height difference between the electrode posts, so that each electrode post can be in the depth of field of the image detector as much as possible.

[0088] In this way, when the first image detector 33 and the second image detector 43 are used for image shooting in the subsequent process, the image quality can be ensured to be clear, and the image information such as the appearance of the electrode posts of the battery cell 80 can be accurately obtained, so that the whole detection task can be better completed.

[0089] Reference Figure 1 and Figure 2 Specifically, the third driver 70 can be a servo motor.

[0090] The embodiment of the present application further provides a battery cell 80 detection device, which comprises a double-shaft moving mechanism and a visual detection spacing device as in any of the above embodiments, and the double-shaft moving mechanism can move along the first direction and the second direction.

[0091] The battery cell 80 detection device of the embodiment of the present application has the beneficial effects brought by the visual detection spacing device in any of the above embodiments due to comprising the visual detection spacing device in any of the above embodiments, which will not be repeated here.

[0092] The above only provides the preferred embodiments of the present application and should not be used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A vision inspection spacing device, characterized by, The application relates to a double-axis moving mechanism for detecting a surface, comprising: a mounting plate arranged on a double-axis moving mechanism to move in a first direction and a second direction, wherein the first direction and the second direction are perpendicular to each other; a first detection group comprising a first bidirectional driving mechanism, a first height detector and a first image detector, wherein the first bidirectional driving mechanism can drive the first height detector and the first image detector to move symmetrically in the second direction on the mounting plate; a second detection group comprising a second bidirectional driving mechanism, a second height detector and a second image detector, wherein the second bidirectional driving mechanism can drive the second height detector and the second image detector to move symmetrically in the second direction on the mounting plate; wherein the center line of the symmetric movement of the first detection group coincides with the center line of the symmetric movement of the second detection group, and the first height detector, the second height detector, the second image detector and the first image detector are arranged in the second direction in sequence. The mounting plate comprises a first plate surface and a second plate surface which are opposite to each other; 2. The vision inspection spacing apparatus of claim 1, wherein, the first height detector is arranged on the first plate surface, and the first image detector is arranged on the second plate surface; the second height detector is arranged on the first plate surface, and the second image detector is arranged on the second plate surface. The application further comprises a guide assembly comprising a guide rail, two first sliders and two second sliders, wherein the guide rail is arranged on the second plate surface in the second direction, the first sliders and the second sliders are slidingly arranged on the guide rail, and the two second sliders are located between the two first sliders; 3. The vision inspection spacing apparatus of claim 2, wherein, a through opening extending in the second direction is arranged on the mounting plate; the first height detector is connected with one of the first sliders, and the first image detector passes through the opening and is connected with the other first slider; the second height detector is connected with one of the second sliders, and the second image detector passes through the opening and is connected with the other second slider. The first bidirectional driving mechanism and the second bidirectional driving mechanism are arranged on the first plate surface, the first bidirectional driving mechanism passes through the opening and is connected with the first image detector, and the second bidirectional driving mechanism passes through the opening and is connected with the second image detector.

4. The vision inspection spacing apparatus of claim 3, wherein, The first bidirectional driving mechanism and the second bidirectional driving mechanism are arranged in a third direction on the second plate surface, the first height detector is connected with the first bidirectional driving mechanism through a first connecting plate, the second height detector is connected with the second bidirectional driving mechanism through a second connecting plate, the positions of the first height detector and the second height detector in the third direction are the same, and the third direction is perpendicular to the first direction and the second direction.

5. The vision inspection spacing apparatus of claim 4, wherein, ​ 6. The vision inspection spacing apparatus of claim 1, wherein, The first bidirectional driving mechanism comprises a first driver, a first screw rod and two first nuts, the first screw rod is rotatably arranged on the mounting plate and arranged along the second direction, the first screw rod comprises a first threaded section and a second threaded section, the first threaded section and the second threaded section are opposite in threaded direction, one first nut is matched and sleeved on the first threaded section, and the other first nut is matched and sleeved on the second threaded section, the first height detector is connected with one first nut, the first image detector is connected with the other first nut, and the first driver is used for driving the first screw rod to rotate.

7. The vision inspection spacing apparatus of claim 1, wherein The second bidirectional driving mechanism comprises a second driver, a second screw rod and two second nuts, the second screw rod is rotatably arranged on the mounting plate and arranged along the second direction, the second screw rod comprises a third threaded section and a fourth threaded section, the third threaded section and the fourth threaded section are opposite in threaded direction, one second nut is matched and sleeved on the third threaded section, and the other second nut is matched and sleeved on the fourth threaded section, the second height detector is connected with one second nut, the second image detector is connected with the other second nut, and the second driver is used for driving the second screw rod to rotate.

8. The vision inspection spacing apparatus of claim 1, wherein, A light source is further arranged on the mounting plate and used for lighting when the first image detector and the second image detector take images.

9. The vision inspection spacing device of any one of claims 1 to 8, wherein, A substrate and a third driver are further arranged, the substrate is connected with the double-axis moving mechanism, the mounting plate is movably arranged on the substrate along a third direction, and the third driver is used for driving the mounting plate to move.

10. A battery cell detection apparatus, characterized by, The double-axis moving mechanism and the visual detection spacing device as claimed in any one of claims 1 to 9 are comprised.

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