Detection jig, detection device and battery production system

Abstract

The invention provides a detection jig, a detection device and a battery production system. The detection jig comprises a bottom plate which is provided with a station which is configured to place a workpiece to be detected; the detection structure is arranged on the bottom plate and comprises a first detection mechanism which is located on the first side of the station in the first direction of the bottom plate, the first detection mechanism comprises a plurality of detection assemblies, each detection assembly comprises a detection element, and the detection elements can move into threaded holes of a workpiece to be detected so as to detect whether threaded sleeves exist in the threaded holes or not; the moving directions of the at least two detection elements are intersected; the second detection mechanism is arranged on the second side of the station along the first direction of the bottom plate and is configured to detect whether a threaded hole in the second side of the to-be-detected workpiece has a threaded sleeve or not; the second detection mechanism comprises a plurality of detection assemblies, and the moving directions of at least two detection elements in the second detection mechanism intersect. According to the detection jig, the detection efficiency and the accuracy are improved; and multi-direction detection can be realized, and the detection matching adaptability is relatively high.

Description

Technical Field

[0001] The present invention relates to the technical field of battery production, and in particular to a detection fixture, a detection device and a battery production system. Background Art

[0002] The battery module is mainly composed of structural parts, electrical connectors, and battery cells, among which the structural parts include the upper cover, end plate, side plate, etc. Most of the existing end plates are extruded aluminum end plates. The hardness of the aluminum profile itself is relatively low, and a wire screw sleeve needs to be inserted into the threaded hole to enhance the thread strength and prevent thread slippage. Therefore, it is necessary to detect whether a wire screw sleeve is installed in the threaded hole.

[0003] However, existing detection fixtures are prone to missed detections and have low detection efficiency. Summary of the invention

[0004] The detection fixture, detection device and battery production system provided in the present application are intended to solve the problem that existing detection fixtures are prone to missed detections and have low detection efficiency.

[0005] In order to solve the above technical problems, a technical solution adopted in the present application is: to provide a detection fixture, which includes: a base plate, having a work station, and the work station is configured to place a workpiece to be tested; a detection structure, which is arranged on the base plate, and the detection structure includes: a first detection mechanism, which is located on a first side of the work station along a first direction of the base plate, and the first detection mechanism includes a plurality of detection components, the detection component includes a detection element, and the detection element can be moved into a threaded hole of the workpiece to be tested to detect whether there is a screw sleeve in the threaded hole; wherein the moving directions of at least two of the detection elements intersect; a second detection mechanism, which is arranged on a second side of the work station along the first direction of the base plate, and is configured to detect whether there is a screw sleeve in the threaded hole on the second side of the workpiece to be tested; the second detection mechanism includes a plurality of the detection components, and the moving directions of at least two of the detection elements in the second detection mechanism intersect.

[0006] The above-mentioned detection fixture includes a detection structure, the detection structure includes a first detection mechanism, the first detection mechanism is located on the first side of the workstation along the first direction of the bottom plate, and the first detection mechanism includes a plurality of detection components, the detection component includes a detection element, and the detection element can be moved into the threaded hole of the workpiece to be tested to detect whether there is a screw sleeve in the threaded hole. In this way, the detection function of whether the threaded hole of the workpiece to be tested is equipped with a screw sleeve is realized, and multiple threaded holes can be detected at one time; at the same time, compared with manual visual inspection, the risk of missed detection is reduced, thereby improving the detection efficiency and accuracy, and further improving the production efficiency of the battery. In addition, by making the moving directions of at least two of the detection elements intersect; it is possible to simultaneously detect whether at least two threaded holes extending in different directions are equipped with screw sleeves, which can achieve multi-directional detection, and the detection matching adaptability is strong, which can further improve the detection efficiency of the workpiece to be tested and the battery production efficiency. In addition, it is possible to detect whether the threaded holes on both sides of the workpiece to be tested are equipped with screw sleeves; and the first detection mechanism and the second detection mechanism can work simultaneously to detect the threaded holes on both sides of the workpiece to be tested at the same time, and the detection is more efficient and quick. In addition, the second detection mechanism can also simultaneously detect whether at least two threaded holes extending in different directions are equipped with threaded sleeves, and can also realize multi-directional detection. The detection matching adaptability is strong, which can further improve the detection efficiency of the workpiece to be tested and the battery production efficiency.

[0007] In one embodiment, among the multiple detection components in the first detection mechanism and / or the second detection mechanism, the moving direction of the detection element of one of the detection components is parallel to the first direction, and the moving directions of the detection elements of the remaining detection components intersect with the first direction.

[0008] In the above scheme, the first detection mechanism and / or the second detection mechanism can detect whether a threaded hole extending along the first direction on the workpiece to be tested is equipped with a screw sleeve in one detection; it can also simultaneously detect whether other threaded holes extending obliquely relative to the first direction are equipped with screw sleeves, which effectively increases the detection efficiency of the detection fixture; and expands the scope of application of the detection fixture.

[0009] In one embodiment, the detection assembly further includes a driving member, which is connected to the detection element and is configured to drive the detection element to move back and forth.

[0010] In the above solution, the detection element is driven to move by the driving member. Compared with manual driving, the degree of automation is higher and it is convenient to control the force acting on the detection element.

[0011] In one embodiment, the detection element is detachably connected to the driving member.

[0012] The above scheme facilitates the replacement and maintenance of the detection element.

[0013] In one embodiment, the detection assembly includes a plurality of different models of the detection elements, and any one of the plurality of different models of the detection elements can be connected to the driving member; wherein one model of the detection element corresponds to one model of the screw sleeve. The above scheme enables the detection fixture to select and replace the corresponding detection element installed on the driving part according to different versions of the workpiece to be tested, that is, according to the different models of the screw sleeves on the workpiece to be tested, so that the detection fixture can detect whether there are screw sleeves in the threaded holes of different models of workpieces to be tested, thereby realizing fast switching detection of workpieces to be tested of different versions, saving time and labor, and having strong adaptability.

[0014] In one embodiment, the detection component further includes a sensor configured to output a first signal when sensing that the distance between the detection element and the screw sleeve is less than or equal to a preset distance.

[0015] The above scheme uses a sensor to sense whether a screw sleeve is installed in the threaded hole of the workpiece to be tested, so as to complete batch inspection of screw sleeves more efficiently and accurately; reduce the risk of missing screw sleeves and missing parts in the process; and at the same time reduce the intensity of manual work.

[0016] In one embodiment, it further includes: a heightening plate, which is disposed on the workstation of the base plate and is configured to carry the workpiece to be measured so that the threaded hole of the workpiece to be measured and the detection element are at the same height relative to the base plate.

[0017] The above solution enables the threaded hole to be located in the moving path of the detection element, so that the detection element can extend into the threaded hole of the workpiece to be detected during the movement process for detection.

[0018] In one embodiment, the base plate has a plurality of the workstations; the number of the detection structures is a plurality of groups, one group of the detection structures corresponds to one workstation, and each group of the detection structures corresponds to a different type of the workpiece to be detected. The above scheme can detect different types of workpieces to be tested by using the same testing fixture without changing the testing fixture, which saves time and effort and has high testing efficiency.

[0019] In order to solve the above technical problems, another technical solution adopted in the present application is: to provide a detection device, which includes: the detection fixture involved in the above-mentioned; a transfer mechanism, including a manipulator, the manipulator is configured to grab and transfer the workpiece to be tested to the workstation of the detection fixture; or grab and transfer the workpiece to be tested from the workstation to other locations.

[0020] In the above scheme, the workpiece to be tested is loaded by a robot, and the positioning of the workpiece to be tested on the workstation and the detection element is more accurate, which can realize batch detection and save time and labor.

[0021] In one embodiment, it also includes: a first conveyor line, configured to convey the workpiece to be measured with threaded sleeves installed in all the threaded holes of the workpiece to be measured; a second conveyor line, configured to convey the workpiece to be measured with threaded sleeves not installed in at least some of the threaded holes of the workpiece to be measured; the robot is configured to grab and transfer the workpiece to be measured from the workstation to the first conveyor line or the second conveyor line.

[0022] In the above scheme, the robot can transfer the workpiece to be tested after the test to the first conveyor line or the second conveyor line according to the test results, so as to transport it to the preset position through the corresponding conveyor line. The degree of automation is high, which is convenient for the classification of the workpiece to be tested and the subsequent targeted processing of the workpiece to be tested that is not equipped with a screw sleeve, so as to improve the yield of the prepared battery.

[0023] In one embodiment, it also includes: a first controller, which is electrically connected to the robot and the sensor of each of the detection components, and is configured to control the robot to grab and transfer the workpiece to be tested to the workstation; and based on the sensing result of the sensor, controls the robot to transfer the workpiece to be tested on the workstation to the first conveyor line or the second conveyor line.

[0024] The above scheme controls the manipulator to transfer the workpiece to be tested on the workstation to the first conveyor line or the second conveyor line according to the sensing result of the sensor through the first controller. Compared with the scheme of manually operating the manipulator, it has a higher degree of automation, faster detection efficiency, and reduced manual operation intensity.

[0025] In one embodiment, it also includes: a second controller, which is electrically connected to the driving member and the sensor of each detection component and is configured to control the opening and closing of the driving member, and to control the driving force of the corresponding driving member within a preset range based on the first signal output by the sensor. The above scheme controls the driving force of the driving member by the second controller according to whether the sensor is turned on, and can timely adjust the force of the detection element acting on the sleeve to control the strength of the driving force, thereby reducing the risk of deformation of the sleeve due to material stress and damage to the workpiece to be measured.

[0026] In one embodiment, it further includes: a material picking plate having a receiving groove, the receiving groove matches the contour of the workpiece to be measured and is configured to receive the workpiece to be measured; the manipulator is configured to grab the workpiece to be measured from the material picking plate and transfer it to the workstation.

[0027] The above scheme can position the workpiece to be measured through the accommodating groove, so that the robot can grab the workpiece to be measured from the preset position of the workpiece to be measured, thereby improving the alignment accuracy between the workpiece to be measured and the detection element after the workpiece to be measured is placed on the workstation.

[0028] In one embodiment, the workpiece to be measured has a first surface and a second surface opposite to each other along its thickness direction; the manipulator includes an adsorption component and a clamping component; the adsorption component is configured to adsorb the workpiece to be measured from the first surface of the workpiece to be measured; the clamping component is configured to clamp the workpiece to be measured on both sides along a direction perpendicular to the thickness direction of the workpiece to be measured.

[0029] The above scheme can improve the stability of the manipulator in grasping the workpiece to be measured by the adsorption component and the clamping component. Moreover, when the manipulator is fixed in the height direction, the adsorption component can be used to absorb the workpiece to be measured at different heights. In this way, even if the manipulator moves above the workpiece to be measured and is spaced apart from the workpiece to be measured, the adsorption component can be used to adsorb the workpiece to be measured to the surface of the manipulator to grasp the workpiece to be measured.

[0030] In order to solve the above technical problems, another technical solution adopted in the present application is: to provide a battery production system, which includes the above-mentioned detection device.

[0031] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings: Figure 1 A schematic diagram of the overall structure of a detection fixture provided in one embodiment of the present application; Figure 2 for Figure 1 A top view of the inspection fixture shown; Figure 3 For this application, the workpiece to be tested is placed Figure 1 The schematic diagram of the structure on the detection fixture shown; Figure 4 This is a schematic diagram of the position of the detection element in the threaded hole when a threaded sleeve is installed in the threaded hole of the workpiece to be measured in this application; Figure 5This is a schematic diagram of the position of the detection element in the threaded hole when no threaded sleeve is installed in the threaded hole of the workpiece to be measured in this application; Figure 6 A schematic diagram of the structure of a detection element provided in one embodiment of the present application; Figure 7 This is a schematic diagram of the structure in which the step surface of the detection element of the present application abuts against the screw sleeve; Figure 8 A schematic diagram of the structure of a detection fixture provided in another embodiment of the present application; Fig. 9 for Figure 8 A top view of the inspection fixture shown; Fig.10 for Figure 8 A side view of the inspection fixture shown; Fig.11 A schematic diagram of the structure of a detection fixture provided in another embodiment of the present application; Fig.12 for Fig.11 A top view of the inspection fixture shown; Fig.13 for Fig.11 The schematic diagram of the structure of the inspection fixture for inspecting the workpiece to be inspected is shown; Fig.14 A schematic diagram of the structure of a detection device provided in one embodiment of the present application; Fig.15 A simplified structural diagram of a detection device provided in one embodiment of the present application.

[0033] Description of Reference Numerals 10 detection fixture; 1 bottom plate; 2 detection structure; 2a first detection mechanism; 21 detection assembly; 211 detection element; 2111 first detection section; 2112 second detection section; 212 driving member; 2b second detection mechanism; 3 pad plate; 31 positioning column; 20 transfer mechanism; 20a manipulator; 201 clamping assembly; 22 first conveying line; 23 second conveying line; 30: a material taking plate; 301: a receiving slot; 100 workpiece to be measured; 101 threaded hole; 102 positioning hole; 200 threaded sleeve; 300 workbench. DETAILED DESCRIPTION

[0034] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0036] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0037] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0038] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0039] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0040] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the embodiments of the present application.

[0041] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0042] The detection device provided in the embodiment of the present application can be applied to a battery production system to detect whether a threaded sleeve is installed in a threaded hole on a battery product during the battery production process, so as to ensure the assembly efficiency of the battery product.

[0043] Batteries mentioned in the art can be divided into disposable batteries and rechargeable batteries according to whether they are rechargeable. Currently common types of rechargeable batteries include: lead-acid batteries, nickel-metal hydride batteries and lithium-ion batteries.

[0044] The battery described in the embodiments of the present application may refer to a rechargeable battery. The embodiments disclosed in the present application will be described below mainly by taking a lithium-ion battery as an example. It should be understood that the embodiments disclosed in the present application are applicable to any other appropriate type of rechargeable battery. The battery mentioned in the embodiments disclosed in the present application can be directly or indirectly applied to an appropriate device to power the device.

[0045] The battery is a power source for an electric device. The electric device may be a mobile phone, a portable device, a laptop computer, a battery car, an electric car, a ship, a spacecraft, an electric toy, and an electric tool, etc. For example, the spacecraft includes an airplane, a rocket, a space shuttle, and a spacecraft, etc. The electric toy includes a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric airplane toy, etc. The electric tool includes a metal cutting electric tool, a grinding electric tool, an assembly electric tool, and a railway electric tool, such as an electric drill, an electric grinder, an electric wrench, an electric screwdriver, an electric hammer, an impact drill, a concrete vibrator, and an electric planer.

[0046] The battery includes a box body and a battery cell, and the box body has a storage space for accommodating the battery cell. In the battery, there can be one or more battery cells. Each battery cell can be a secondary battery or a primary battery; it can also be a lithium-sulfur battery, a sodium-ion battery or a magnesium-ion battery, but is not limited thereto. The battery cell can be cylindrical, flat, rectangular or other shapes.

[0047] The box body can adopt a variety of structures, for example, it can include an upper cover, end plates, side plates, etc. The end plates or side plates are mostly extruded aluminum plates. The hardness of the aluminum profile itself is relatively low, and a wire screw sleeve needs to be inserted into the threaded hole to enhance the strength of the thread and prevent the thread from slipping. However, in the related art, it is usually based on manual visual inspection to see whether the threaded hole is equipped with a screw sleeve, which is prone to missed inspections, resulting in low detection efficiency and low accuracy.

[0048] Based on the above problems, the present application proposes a detection fixture for detecting whether a threaded hole of a workpiece to be tested (such as an upper cover, an end plate, a side plate, etc.) is equipped with a screw sleeve to ensure the assembly efficiency of the battery.

[0049] The present application is described in detail below with reference to the accompanying drawings and embodiments.

[0050] See also Figures 1 to 3 , Figure 1 A schematic diagram of the overall structure of a detection fixture provided in one embodiment of the present application; Figure 2 for Figure 1 A top view of the inspection fixture shown; Figure 3 For this application, the workpiece 100 to be tested is placed Figure 1 Schematic diagram of the structure on the detection fixture shown. In this embodiment, a detection fixture 10 is provided, which includes a base plate 1 and a detection structure 2; the base plate 1 has a work station, and the work station is configured to place a workpiece 100 to be tested. The detection structure 2 is arranged on the base plate 1, and the detection structure 2 includes a first detection mechanism 2a, the first detection mechanism 2a is located on the first side of the work station along the first direction X of the base plate 1, and the first detection mechanism 2a includes a plurality of detection components 21, and the detection component 21 includes a detection element 211, and the detection element 211 can be moved into the threaded hole 101 of the workpiece 100 to detect whether there is a screw sleeve 200 in the threaded hole 101 (see below) Figure 4 ); wherein the moving directions of at least two detection elements 211 intersect.

[0051] The bottom plate 1 may be a rectangular plate, and the length direction of the bottom plate 1 may be defined as a first direction X. The bottom plate 1 may be provided with fixing holes, and fixing members such as studs and screws may be used to fix the bottom plate 1 to the workbench 300 through the fixing holes (see below). Fig.14 Of course, the bottom plate 1 may not have fixing holes.

[0052] The workstation may be a preset area position on the base plate 1. The base plate 1 may have a plurality of workstations, and each workstation may correspond to a workpiece 100 to be tested. The workpiece 100 to be tested may be an upper cover, an end plate or a side plate of a battery box, etc. The workpiece 100 to be tested has a first side surface and a second side surface relative to each other, and a third side surface and a fourth side surface relative to each other; a plurality of threaded holes 101 arranged at intervals are provided on the first side surface and / or the second side surface of the workpiece 100 to be tested. After the workpiece 100 to be tested is placed on the workstation, the first side surface of the workpiece 100 to be tested faces the first side of the workstation, and the second side surface of the workpiece 100 to be tested faces the second side of the workstation.

[0053] Combination Figure 3 After the workpiece 100 to be measured is placed on the work station, the detection element 211 is aligned and connected with the threaded hole 101. It can be understood that the detection element 211 is coaxially aligned with the threaded hole 101 to facilitate the detection element 211 to be smoothly inserted into the threaded hole 101 to detect whether the screw sleeve 200 is installed.

[0054] The detection mechanism is configured to detect whether a screw sleeve 200 is installed in the threaded hole 101 of the workpiece 100 to be measured. The first direction X can be the length direction of the base plate 1. A plurality of detection components 21 can be arranged at intervals along a second direction Y perpendicular to the first direction X. The number of detection components 21 of the first detection mechanism 2a can be the same as the number of threaded holes 101 on the first side of the workpiece 100 to be measured, and one detection component 21 corresponds to one threaded hole 101. In one embodiment, the number of detection components 21 can be three.

[0055] The detection element 211 may be a pin; one detection component 21 is correspondingly mounted with one detection element 211 .

[0056] See also Figures 4 to 5 , Figure 4 This is a schematic diagram of the position of the detection element 211 in the threaded hole 101 when the threaded sleeve 200 is installed in the threaded hole 101 of the workpiece 100 to be measured in this application; Figure 5 Schematic diagram of the position of the detection element 211 in the threaded hole 101 of the workpiece 100 to be tested when the screw sleeve 200 is not installed in the threaded hole 101 of the workpiece 100 to be tested. The detection element 211 can move back and forth along a preset direction to extend into the threaded hole 101 of the workpiece 100 to be tested. Figure 4 As shown, when there is a screw sleeve 200 in the threaded hole 101 of the workpiece 100 to be measured, the detection element 211 can move to the first position and abut against the screw sleeve 200, and the detection element 211 cannot move forward. Figure 5As shown, when there is no screw sleeve 200 in the threaded hole 101 of the workpiece 100 to be measured, the detection element 211 can continue to move from the first position to the second position. The second position can be the bottom wall of the threaded hole 101, or a position close to the bottom wall of the threaded hole 101. It can be understood that along the extension direction of the threaded hole 101, the second position is closer to the bottom wall of the threaded hole 101 than the first position.

[0057] In some embodiments, see Figure 6 to Figure 7 , Figure 6 A schematic diagram of the structure of a detection element 211 provided in an embodiment of the present application; Figure 7 The schematic diagram of the structure in which the step surface of the detection element 211 of the present application abuts against the screw sleeve 200; the detection element 211 has a first detection section 2111, the outer diameter of the first detection section 2111 is larger than the inner diameter of the screw sleeve 200 and smaller than the outer diameter of the threaded hole 101; when the detection element 211 extends into the threaded hole 101, when the screw sleeve 200 is installed in the threaded hole 101, the end face of the first detection section 2111 will be blocked by the screw sleeve 200 and will not continue to move into the threaded hole 101, so that the detection element 211 is in the first position; when the screw sleeve 200 is not installed in the threaded hole 101, the first detection section 2111 will extend into the threaded hole 101, so that the detection element 211 moves to the second position. Among them, the first detection section 2111 can be located at the end of the detection element 211; of course, it can also be located in the middle of the detection element 211.

[0058] like Figure 6 , the detection element 211 also includes a second detection section 2112, which is connected to one end of the first detection section 2111 close to the work station, and the outer diameter of the second detection section 2112 is smaller than the inner diameter of the screw sleeve 200. In this design, the outer diameter of the second detection section 2112 is smaller than the inner diameter of the screw sleeve 200, so that the second detection section 2112 can be smoothly inserted into the screw sleeve 200 to play a positioning and guiding role for the detection element 211, and at the same time, it can avoid interfering with the first detection section 2111's detection and judgment of whether the screw sleeve 200 is installed, thereby achieving the purpose of improving the detection efficiency.

[0059] In this embodiment, the second detection section 2112 and the first detection section 2111 can be an integrally formed structure, which can ensure connection reliability and simplify the preparation process. The second detection section 2112 and the first detection section 2111 can be a concentric stepped shaft structure, and the second detection section 2112 can be located at the end of the detection element 211. The outer diameter of the first detection section 2111 is greater than the outer diameter of the second detection section 2112 to form a step surface, which is used to abut against the end surface of the screw sleeve 200.

[0060] In one embodiment of the present application, Figure 6As shown, the length of the second detection section 2112 is greater than or equal to the length of the screw sleeve 200. The length of the second detection section 2112 is the axial length of the second detection section 2112, and the length of the screw sleeve 200 is the axial length of the screw sleeve 200.

[0061] The detection fixture 10 provided in this embodiment includes a detection structure 2, and the detection structure 2 includes a first detection mechanism 2a, the first detection mechanism 2a is located on the first side of the workstation along the first direction X of the bottom plate 1, and the first detection mechanism 2a includes a plurality of detection components 21, and the detection component 21 includes a detection element 211, and the detection element 211 can be moved into the threaded hole 101 of the workpiece 100 to be tested to detect whether there is a screw sleeve 200 in the threaded hole 101. In this way, the detection function of whether the threaded hole 101 of the workpiece 100 to be tested is realized, and multiple threaded holes 101 can be detected at one time; at the same time, compared with manual visual inspection, the risk of missed detection is reduced, thereby improving the detection efficiency and accuracy, and then improving the production efficiency of the battery. In addition, by making the moving directions of at least two detection elements 211 intersect, it is possible to simultaneously detect whether the screw sleeve 200 is installed in at least two threaded holes 101 extending in different directions, so that multi-directional detection can be achieved, and the detection matching adaptability is strong, which can further improve the detection efficiency of the workpiece 100 to be tested and the battery production efficiency. In addition, the detection fixture 10 provided in this embodiment has a lower detection cost and a more stable and efficient detection result compared to the solution of visual detection using a camera or the like.

[0062] In one embodiment, threaded holes 101 are respectively formed on the first side and the second side of the workpiece 100 to be measured. Figures 8 to 10 , Figure 8 A schematic diagram of the structure of a detection fixture 10 provided in another embodiment of the present application; Fig. 9 for Figure 8 A top view of the inspection fixture shown; Fig.10 for Figure 8 The detection fixture 10 is shown in side view; the detection structure 2 also includes a second detection mechanism 2b, which is arranged on the second side of the workstation along the first direction X of the base plate 1, and the second detection mechanism 2b is configured to detect whether there is a screw sleeve 200 in the threaded hole 101 on the second side of the workpiece 100 to be tested.

[0063] The structure of the second detection mechanism 2b can be the same or similar to that of the first detection mechanism 2a, and the second detection mechanism 2b and the first detection mechanism 2a are arranged on opposite sides of the workstation. Of course, in other embodiments, the structure of the second detection mechanism 2b can also be different from that of the first detection mechanism 2a.

[0064] In this embodiment, the first detection mechanism 2a and the second detection mechanism 2b can detect whether the threaded holes 101 on both sides of the workpiece 100 are equipped with threaded sleeves 200 from both sides of the workpiece 100; and the first detection mechanism 2a and the second detection mechanism 2b can work simultaneously to detect the threaded holes 101 on both sides of the workpiece 100 at the same time, so that the detection is more efficient and quick.

[0065] In one embodiment, in combination Figure 8 The second detection mechanism 2b includes a plurality of detection components 21, and the moving directions of at least two detection elements 211 in the second detection mechanism 2b intersect.

[0066] The detection components 21 in the second detection mechanism 2b have the same or similar structure and function as the detection components 21 in the first detection mechanism 2a. The multiple detection components 21 in the second detection mechanism 2b are also arranged at intervals along the second direction Y. The number of detection components 21 in the second detection mechanism 2b is the same as the number of detection components 21 in the first detection mechanism 2a; of course, the number of detection components 21 in the second detection mechanism 2b may also be greater than or less than the number of detection components 21 in the first detection mechanism 2a.

[0067] The number of the detection components 21 of the second detection mechanism 2b can be the same as the number of the threaded holes 101 opened on the second side surface of the workpiece 100 to be detected, and one detection component 21 corresponds to one threaded hole 101. In one embodiment, the number of the detection components 21 can be three. The number of the detection components 21 in the first detection mechanism 2a and the second detection mechanism 2b can be specifically designed according to the number of the threaded holes 101 on the corresponding side of the workpiece 100 to be detected.

[0068] In some embodiments, in combination Figure 8 The structure of the first detection mechanism 2a is the same as that of the second detection mechanism 2b, and the first detection mechanism 2a and the second detection mechanism 2b are symmetrically arranged on both sides of the workstation.

[0069] In this embodiment, by making the moving directions of at least two detection elements 211 in the multiple detection components 21 of the second detection mechanism 2b intersect, the second detection mechanism 2b can also simultaneously detect whether the threaded holes 101 extending in different directions are equipped with screw sleeves 200, and can also achieve multi-directional detection. The detection matching adaptability is strong, which can further improve the detection efficiency of the workpiece 100 to be tested and the battery production efficiency.

[0070] In one embodiment, in combination Figure 8Among the multiple detection components 21 in the first detection mechanism 2a, the moving direction of the detection element 211 of one detection component 21 is parallel to the first direction X, and the moving directions of the detection elements 211 of the remaining detection components 21 intersect with the first direction X.

[0071] Alternatively, among the multiple detection components 21 in the second detection mechanism 2b, the moving direction of the detection element 211 of one detection component 21 is parallel to the first direction X, and the moving directions of the detection elements 211 of the remaining detection components 21 intersect with the first direction X.

[0072] Alternatively, for the multiple detection components 21 in the first detection mechanism 2a and the second detection mechanism 2b, the moving direction of the detection element 211 of one detection component 21 is parallel to the first direction X, and the moving directions of the detection elements 211 of the remaining detection components 21 intersect with the first direction X.

[0073] Combination Fig. 9 , the angle α between the moving direction of the detection element 211 and the first direction X may be greater than 10° and less than 60°; preferably, the angle α between the moving direction of the detection element 211 and the first direction X may be greater than 15° and less than 45°; for example, the angle α may be 15°, 20°, 25°, 30°, 35°, 40° or 45°, etc.

[0074] In some embodiments, in combination Figure 8 and Fig. 9 , the distribution mode of all detection components 21 in the first detection mechanism 2a is the same as or similar to the distribution mode of all detection components 21 in the second detection mechanism 2b; the distribution mode of all detection components 21 in each detection mechanism is introduced by taking the first detection mechanism 2a as an example below; for the convenience of description, in the same detection mechanism, the detection component 21 whose moving direction is parallel to the first direction X is defined as the intermediate detection component; the detection component 21 whose moving direction intersects with the first direction X is defined as the tilt detection component.

[0075] Among them, in the first detection mechanism 2a, all the tilt detection components can be symmetrically distributed on both sides of the middle detection component along the second direction Y, and the end of each tilt detection component close to the workstation is tilted along the second direction Y toward the direction close to the middle detection component, and the end of each tilt detection component away from the workstation is tilted along the second direction Y toward the direction away from the middle detection component.

[0076] In this embodiment, the first detection mechanism 2a and / or the second detection mechanism 2b can detect whether a threaded hole 101 extending along the first direction X on the workpiece 100 to be tested is equipped with a screw sleeve 200 through an intermediate detection component during one detection; and can also detect whether other threaded holes 101 extending obliquely relative to the first direction X are equipped with screw sleeves 200 through an inclined detection component at the same time, thereby effectively increasing the detection efficiency of the detection fixture 10 and expanding the scope of application of the detection fixture 10.

[0077] In one embodiment, see Fig.10 The detection component 21 also includes a driving member 212, which is connected to the detection element 211 and is configured to drive the detection element 211 to move back and forth.

[0078] The driving member 212 includes a power source and a piston rod; the power source is connected to the piston rod, and the detection element 211 is connected to the end of the piston rod away from the power source. The power source is configured to drive the piston rod to perform linear reciprocating motion, and then drive the detection element 211 to perform linear reciprocating motion through the piston rod to extend into or move out of the threaded hole 101 of the workpiece 100 to be measured. The power source includes a pneumatic cylinder and / or an electric cylinder.

[0079] In this embodiment, the detection element 211 is driven to move by the driving member 212 . Compared with manually driving the detection element 211 to move, the degree of automation is higher, the detection process is more efficient and faster, and it is easy to control the force acting on the detection element 211 .

[0080] In one embodiment, the detection element 211 is detachably connected to the driving member 212 .

[0081] The detection element 211 can be connected to the piston rod of the driving member 212 in a plug-in manner; or screwed onto the piston rod by threads; or connected to the piston rod by a fixing member such as a clamp.

[0082] In this embodiment, the detection element 211 and the driving member 212 are detachably connected to facilitate replacement and maintenance of the detection element 211 .

[0083] In one embodiment, the detection assembly 21 includes a plurality of different types of detection elements 211 , and any one type of detection element 211 among the plurality of different types of detection elements 211 can be connected to the driving member 212 ; wherein one type of detection element 211 corresponds to one type of screw sleeve 200 .

[0084] Among them, the workpiece 100 to be measured includes different versions, and the apertures of the threaded holes 101 corresponding to the workpieces 100 to be measured of different versions are different. The threaded holes 101 of different apertures have different models of screw sleeves 200. The inner diameters of screw sleeves 200 of different models are different, and the outer diameters are also different. The outer diameters of the first detection sections 2111 of different models of detection elements 211 are different; the outer diameters of the second detection sections 2112 are also different. When the detection element 211 extends into the threaded hole 101 to detect whether the corresponding screw sleeve 200 is installed in the threaded hole 101, a step surface is formed between the first detection section 2111 and the second detection section 2112 of the detection element 211, which can be abutted against the end face of the corresponding screw sleeve 200.

[0085] In a specific embodiment, the workpiece 100 to be measured includes a workpiece 100 to be measured of the S version (i.e., small version), a workpiece 100 to be measured of the standard version (i.e., medium version), and a workpiece 100 to be measured of the P version (i.e., large version). Among the three types of workpieces 100 to be measured, the S version of the workpiece 100 to be measured has the smallest aperture of the threaded hole 101; the P version of the workpiece 100 to be measured has the largest aperture of the threaded hole 101. Correspondingly, the inner diameter of the screw sleeve 200 set in the threaded hole 101 of the S version of the workpiece 100 to be measured is the smallest, and the outer diameters of the first detection section 2111 and the second detection section 2112 of the detection element 211 corresponding to the screw sleeve 200 are also the smallest. The inner diameter of the screw sleeve 200 set in the threaded hole 101 of the workpiece 100 to be measured of the P version is the largest, and the outer diameters of the first detection section 2111 and the second detection section 2112 of the detection element 211 corresponding to the screw sleeve 200 are also the largest.

[0086] In this embodiment, the detection component 21 includes a plurality of different types of detection elements 211, and each detection element 211 can be selectively installed on the driving member 212; in this way, the detection fixture 10 can select to replace the corresponding detection element 211 installed on the driving member 212 according to different versions of the workpiece 100 to be tested, that is, according to the different models of the screw sleeve 200 on the workpiece 100 to be tested, so that the detection fixture can detect whether there is a screw sleeve 200 in the threaded hole 101 of the workpiece 100 to be tested of different versions, thereby realizing fast switching detection of workpieces 100 to be tested of different versions, saving time and effort, and having strong adaptability.

[0087] In one embodiment, the detection assembly 21 further includes a sensor (not shown), which is configured to output a first signal when the distance between the detection element 211 and the screw sleeve 200 is less than or equal to a preset distance.

[0088] Among them, when the distance between the detection element 211 and the screw sleeve 200 is less than or equal to the preset distance, that is, when the screw sleeve 200 is installed in the threaded hole 101 of the workpiece 100 to be measured, the sensor is turned on and outputs the first signal. When the distance between the detection element 211 and the screw sleeve 200 is greater than the preset distance, that is, when the screw sleeve 200 is not installed in the threaded hole 101 of the workpiece 100 to be measured, the sensor is not turned on. In the specific detection process, whether the screw sleeve 200 is installed in the threaded hole 101 of the workpiece 100 to be measured can be judged according to whether the sensor is turned on.

[0089] In a specific embodiment, if the sensors of all the detection components 21 corresponding to the workpiece 100 to be tested all output the first signal, then each threaded hole 101 of the workpiece 100 to be tested is equipped with a screw sleeve 200, and the workpiece 100 to be tested is a qualified product. If the sensors of all the detection components 21 corresponding to the workpiece 100 to be tested, as long as one or more of the sensors do not output the first signal, it means that at least one or more threaded holes 101 of the workpiece 100 to be tested do not have a screw sleeve 200 installed, that is, no screw sleeve 200 is installed, and the workpiece 100 to be tested is an unqualified product.

[0090] The first signal may include a voice signal, a light signal or a control signal. The sensor may be any sensor capable of sensing the distance between the detection element 211 and the screw sleeve 200 .

[0091] The preset distance may be greater than or equal to 0 and less than or equal to 1 mm. In one specific embodiment, when the detection element 211 and the screw sleeve 200 are in contact, the sensor is turned on. In another specific embodiment, when the distance between the detection element 211 and the screw sleeve 200 fixture is greater than 0 and less than 1 mm, the sensor is turned on; in this way, the risk of the screw sleeve 200 being damaged by the extrusion force of the detection element 211 can be reduced.

[0092] In this embodiment, by using a sensor to sense whether a screw sleeve 200 is installed in the threaded hole 101 of the workpiece 100 to be tested, batch inspection of the screw sleeve 200 can be completed more efficiently and accurately; the risk of missing screw sleeves 200 and missing parts in the process is reduced; and the intensity of manual work is reduced.

[0093] In one embodiment, you can continue to refer to Fig.10 The detection fixture 10 also includes a heightening plate 3, which is arranged on the working position of the base plate 1, and is configured to carry the workpiece 100 to be tested, so that the threaded hole 101 of the workpiece 100 to be tested and the detection element 211 are at the same height position relative to the base plate 1.

[0094] The heightening plate 3 is plate-shaped and is arranged on the base plate 1 and is located in the area where the workstations are located. All workstations on the base plate 1 may correspond to one heightening plate 3. Of course, different workstations may correspond to different heightening plates 3. After the workpiece 100 to be measured is placed on the heightening plate 3, the threaded hole 101 of the workpiece 100 to be measured is coaxially arranged with the corresponding detection element 211, so that the detection element 211 can smoothly enter the threaded hole 101 during the movement.

[0095] At the same height position, that is, the straight-line distance between the axis of the threaded hole 101 along its extension direction and the bottom plate 1 is equal to the straight-line distance between the axis of the detection element 211 along its moving direction and the bottom plate 1 .

[0096] In a specific embodiment, in combination Figures 8 to 10 At least one positioning column 31 is also provided on the side surface of the elevated plate 3 facing away from the bottom plate 1; the positioning column 31 is configured to fix the relative position between the workpiece 100 to be measured and the elevated plate 3. There can be two positioning columns 31, and the two positioning columns 31 are arranged at intervals. In this specific embodiment, combined with Figure 4 A positioning hole 102 is opened at a position corresponding to the positioning column 31 on the workpiece 100 to be measured; when the workpiece 100 to be measured is placed on the elevated plate 3, the positioning column 31 is inserted into the positioning hole 102 of the workpiece 100 to fix the relative position between the workpiece 100 to be measured and the elevated plate 3.

[0097] Of course, in other specific embodiments, the number of the positioning column 31 may be one. In order to reduce the risk of the workpiece 100 rotating along the circumferential direction of the positioning column 31, the cross-section of the positioning column 31 along the direction perpendicular to its height may be polygonal; for example, triangular or rectangular.

[0098] In this embodiment, by providing a pad 3 on the bottom plate 1, the threaded hole 101 can be located in the moving path of the detection element 211, so that the detection element 211 can extend into the threaded hole 101 of the workpiece 100 to be detected during the movement.

[0099] In one embodiment, see Figures 11 to 13 , Fig.11 A schematic diagram of the structure of a detection fixture 10 provided in another embodiment of the present application; Fig.12 for Fig.11 A top view of the detection fixture 10 is shown; Fig.13 for Fig.11 The schematic diagram of the structure of the detection fixture for detecting the workpiece to be detected is shown; the base plate 1 has multiple workstations; the number of detection structures 2 is multiple groups, one group of detection structures 2 corresponds to one workstation, and each group of detection structures 2 corresponds to a different type of workpiece 100 to be detected. Among them, the types of workpieces 100 to be tested may include an upper cover, an end plate or a side plate on the battery case. Different stations can be configured to set an upper cover, an end plate or a side plate, respectively, so as to detect whether a screw sleeve 200 is installed in the threaded hole 101 of the upper cover, the end plate or the side plate through the corresponding detection structure 2. Alternatively, the battery case includes a left side plate and a left side plate; the types of workpieces 100 to be tested may include a left side plate and a right side plate. Different stations can be configured to set a left side plate and a right side plate, respectively, so as to detect whether a screw sleeve 200 is installed in the threaded hole 101 of the left side plate and the right side plate through the corresponding detection structure 2. The types of workpieces 100 to be tested can also be divided according to the size of the workpieces 100 to be tested.

[0100] In a specific embodiment, the workpiece 100 to be measured may include a workpiece A to be measured and a workpiece B to be measured. The base plate 1 has a workstation A and a workstation B; the workstation A is configured to place the workpiece A to be measured; and the workstation B is configured to place the workpiece B to be measured.

[0101] The structure and function of each group of detection structures 2 are the same or similar; and the distribution of the detection components 21 in each group of detection structures 2 is the same or similar. In a specific embodiment, there are two workstations on the bottom plate 1, and the number of detection structures 2 is two groups. The two groups of detection structures 2 are arranged at intervals along the second direction Y and correspond to one workstation respectively. One group of detection structures 2 is configured to detect the workpiece A to be detected, and the other detection structure 2 is configured to detect the workpiece B to be detected.

[0102] In this embodiment, the detection fixture 10 is provided with multiple groups of detection structures 2, so that different types of workpieces 100 to be detected can be detected by the same detection fixture 10, without replacing the detection fixture 10, which saves time and labor and has a high detection efficiency.

[0103] In one embodiment, see Fig.14 , Fig.14 A schematic diagram of the structure of a detection device provided in one embodiment of the present application; a detection device is provided, the detection device comprising a detection fixture 10 and a transfer mechanism 20. The detection fixture 10 can be the detection fixture 10 provided in any of the above embodiments. The transfer mechanism 20 comprises a manipulator 20a, the manipulator 20a is configured to grab and transfer a workpiece 100 to be tested to a station of the detection fixture 10; or grab and transfer a workpiece 100 to be tested from a station to another location.

[0104] Combination Fig.14, the detection device can be placed on a workbench 300; the workbench 300 can be any structure with a support surface, such as a bracket, a table, etc. The specific introduction of the detection fixture 10 can be found above. The manipulator 20a grabs the workpiece 100 to be tested and places it on the station of the detection fixture 10; after the detection is completed, the manipulator 20a re-grasps the workpiece 100 to be tested on the station of the detection fixture 10 and transfers it to another position. The manipulator 20a then returns to grab another workpiece 100 to be tested to perform the detection of the next workpiece 100 to be tested.

[0105] The robot arm 20a can grasp the workpiece 100 to be measured by clamping, adsorption and other methods.

[0106] In this embodiment, the workpiece 100 to be tested is loaded by the robot 20a, which improves the automation performance and increases the detection cycle to 1.5 seconds to 2 seconds; and the positioning of the workpiece 100 to be tested on the workstation and the detection element 211 is more accurate, which can realize batch detection and save time and effort.

[0107] In one embodiment, in combination Fig.15 , Fig.15 A simplified structural diagram of a detection device provided in an embodiment of the present application; the detection device further comprises a first conveyor line 22 and a second conveyor line 23. The first conveyor line 22 is configured to convey a workpiece 100 to be detected in which all threaded holes 101 of the workpiece 100 are equipped with screw sleeves 200; the second conveyor line 23 is configured to convey a workpiece 100 to be detected in which at least some of the threaded holes 101 of the workpiece 100 do not have screw sleeves 200; the manipulator 20a is configured to grab and transfer the workpiece 100 to be detected from the workstation to the first conveyor line 22 or the second conveyor line 23.

[0108] The first conveyor line 22 and / or the second conveyor line 23 can convey and transport the workpiece 100 to be tested, and the first conveyor line 22 and / or the second conveyor line 23 can be a roller conveyor line, a chain plate conveyor line, a belt conveyor line / a synchronous belt conveyor line, a top chain conveyor line, a flexible chain plate conveyor line, a double-speed chain conveyor line, a mesh belt conveyor line, etc. The first conveyor line 22 and the second conveyor line 23 can be arranged on the same side of the detection fixture 10 or on opposite sides of the detection fixture 10.

[0109] In some embodiments, when the workpiece 100 to be tested is detected as a qualified product, the robot 20a transfers the corresponding workpiece 100 to be tested to the first conveyor line 22; when the workpiece 100 to be tested is detected as an unqualified product, the robot 20a transfers the corresponding workpiece 100 to be tested to the second conveyor line 23.

[0110] In this embodiment, the robot 20a can transfer the workpiece 100 to be tested after the test is completed to the first conveyor line 22 or the second conveyor line 23 according to the test results, so as to be transported to the preset position through the corresponding conveyor line. The degree of automation is high, which is convenient for the classification of the workpiece 100 to be tested and the subsequent targeted processing of the workpiece 100 to be tested without the screw sleeve 200, so as to improve the yield of the prepared battery.

[0111] In one embodiment, the detection device also includes a first controller, which is electrically connected to the robot 20a and the sensor of each detection component 21, and the first controller is configured to control the robot 20a to grab and transfer the workpiece 100 to be tested to the workstation; and based on the sensing result of the sensor, control the robot 20a to transfer the workpiece 100 to be tested on the workstation to the first conveyor line 22 or the second conveyor line 23.

[0112] The first controller is a device that changes the wiring of the main circuit or control circuit and the resistance value in the circuit in a predetermined order to control the start, speed regulation, braking and reversal of the motor. It is composed of a program counter, an instruction register, an instruction decoder, a timing generator and an operation first controller. It is the "decision-making body" that issues commands, that is, it coordinates and directs the operation of the entire computer system.

[0113] In the specific working process, the detection component 21 configured to detect the workpiece 100 to be tested that is currently transferred to the workstation is referred to as the detection component 21 corresponding to the workpiece 100 to be tested. In response to the first signal output by all sensors of the detection components 21 corresponding to the workpiece 100 to be tested, the first controller controls the manipulator 20a to transfer the workpiece 100 to be tested on the workstation to the first conveyor line 22; in response to at least one sensor in all detection components 21 corresponding to the workpiece 100 to be tested not outputting the first signal, the first controller controls the manipulator 20a to transfer the workpiece 100 to be tested on the workstation to the second conveyor line 23.

[0114] In some specific embodiments, the detection device also includes a touch screen and a first switch (not shown). The touch screen and the first switch are electrically connected to the first controller respectively, and the touch screen is configured to select the first controller to run the first detection program or the second detection program. The first switch is configured to turn on the first controller to run the first detection program (or the second detection program); or turn off the first controller to stop running the first detection program (or the second detection program). Among them, when the first controller runs the first detection program, the robot 20a is controlled to transfer the workpiece 100 to the workstation A, and transfer the workpiece A to be tested on the workstation A to other positions. When the first controller runs the second detection program, the robot 20a is controlled to transfer the workpiece 100 to the workstation B, and transfer the workpiece B to be tested on the workstation B to other positions.

[0115] In some embodiments, the touch screen is further configured to display and record production information of the current workpiece 100 to be tested. The production information includes but is not limited to whether the workpiece 100 to be tested is qualified, the number of workpieces 100 to be tested, the time of testing, etc.

[0116] In this embodiment, the first controller controls the robot 20a to transfer the workpiece 100 to be tested on the workstation to the first conveyor line 22 or the second conveyor line 23 according to the sensing results of the sensor. Compared with the solution of manually operating the robot 20a, the degree of automation is higher, the detection efficiency is faster, and the intensity of manual operation is reduced.

[0117] In one embodiment, the detection device also includes a second controller (not shown), which is electrically connected to the driving member 212 and the sensor of each of the detection components 21, and the second controller is configured to control the opening and closing of the detection component 21, and to control the driving force of the corresponding driving member 212 within a preset range based on the first signal.

[0118] In some embodiments, the detection device further includes a second switch (not shown), which is electrically connected to the second controller and is configured to turn on or off the second controller. When the second controller is turned on, the second controller controls the drive member 212 connected thereto to start working so that the detection element 211 performs linear reciprocating motion. When the second controller is turned off, the drive member 212 electrically connected to the second controller stops working, and the detection element 211 connected to the drive member 212 no longer performs linear reciprocating motion. The first switch and the second switch can be buttons; the first switch and the second switch can be turned on at the same time; or they can be turned on one after another according to actual conditions.

[0119] The second controller controls the driving member 212 where the detection component 21 is located to output a driving force within a preset range in response to receiving the first signal output by the sensor of the corresponding detection component 21. The preset range can be set according to parameters such as the material of the detection element 211 and the screw sleeve 200, the shape of the end of the detection element 211 away from the driving member 212, etc., as long as the damage to the screw sleeve 200 is within an acceptable range after the detection element 211 abuts against the screw sleeve 200.

[0120] In this embodiment, the second controller controls the driving force of the driving member 212 according to whether the sensor is turned on, so that the force of the detection element 211 acting on the screw sleeve 200 can be adjusted in time to control the strength of the driving force and reduce the risk of deformation of the screw sleeve 200 due to material stress and damage to the workpiece 100 to be measured.

[0121] In one embodiment, in combination Fig.14 and Fig.15The detection device further includes a pick-up plate 30, which has a receiving groove 301, which matches the contour of the workpiece 100 to be tested, and is configured to receive the workpiece 100 to be tested. The manipulator 20a is configured to grab the workpiece 100 to be tested from the pick-up plate 30 and transfer it to a workstation.

[0122] The material taking plate 30 is in a plate shape. The material taking plate 30 and the first conveyor line 22 can be arranged on both sides of the inspection fixture 10 .

[0123] In this embodiment, by setting up a material picking plate 30 and opening a receiving groove 301 on the material picking plate 30, the workpiece 100 to be measured can be positioned through the receiving groove 301, so that the robot 20a can grab the workpiece 100 to be measured from a preset position of the workpiece 100, thereby improving the alignment accuracy between the workpiece 100 to be measured and the detection element 211 after the workpiece 100 to be measured is placed on the workstation.

[0124] In one embodiment, the workpiece 100 to be measured has a first surface and a second surface opposite to each other along its thickness direction; the manipulator 20a includes an adsorption component (not shown) and a clamping component 201; the adsorption component is configured to adsorb the workpiece 100 to be measured from the first surface of the workpiece 100 to be measured; the clamping component 201 is configured to clamp the workpiece 100 to be measured on both sides along a direction perpendicular to the thickness direction of the workpiece 100 to be measured.

[0125] When the workpiece 100 to be measured is placed on the pick-up plate 30, the first surface of the workpiece 100 to be measured faces away from the pick-up plate 30. The adsorption assembly can suck the workpiece 100 to be measured out of the receiving groove 301 of the pick-up plate 30 by vacuum adsorption. The clamping assembly 201 can clamp the workpiece 100 to be measured from the third side and the fourth side of the workpiece 100 to reduce the interference caused by the clamping assembly 201 to the process of transferring the workpiece 100 to or from the workstation.

[0126] The clamping assembly 201 includes a driving element and two groups of clamping members connected to the driving element. The two groups of clamping members are configured to clamp the workpiece 100 to be measured from the third side and the fourth side of the workpiece 100 to be measured, respectively. The driving element is configured to drive the two groups of clamping members to move closer to or farther away from each other. The two groups of clamping members move closer to each other to clamp the workpiece 100 to be measured; the two groups of clamping members move away from each other to release the workpiece 100 to be measured. Each group of clamping members may include two clamping columns, and the two clamping columns are configured to abut from both ends of the workpiece 100 to cooperate with the clamping columns of another clamping member to clamp the workpiece 100 to be measured, thereby improving the stability of the manipulator 20a in grasping the workpiece 100 to be measured. The driving element may be a motor.

[0127] In this embodiment, the workpiece 100 to be measured is grasped by the adsorption component and the clamping component 201, which can improve the stability of the manipulator 20a grasping the workpiece 100 to be measured. Moreover, when the position of the manipulator 20a in the height direction remains fixed, the workpiece 100 to be measured at different height positions can be sucked by the adsorption component. In this way, even if the manipulator 20a moves above the workpiece 100 to be measured and there is a certain distance between the manipulator 20a and the workpiece 100 to be measured, the workpiece 100 to be measured can be adsorbed to the surface of the manipulator 20a by the adsorption component to grasp the workpiece 100 to be measured.

[0128] The operation process of the detection device is introduced below.

[0129] The user selects the detection program (such as the first detection program) that the first controller needs to run through the touch screen, and then manually presses the first switch, and the first controller starts running the detection program. The manipulator 20a grabs the workpiece 100 to be tested from the material picking plate 30 and places it on the padding plate 3 of the detection fixture 10. Start the second switch, and the second controller controls the detection element 211 of each detection component 21 to extend into the threaded hole 101 of the workpiece 100 to start detecting the workpiece 100 to be tested; when the detection element 211 reaches a fixed depth in the threaded hole 101, it is determined whether the threaded hole 101 is equipped with a screw sleeve 200 by whether the sensor is turned on or not. If the sensor is turned on, the threaded hole 101 of the workpiece 100 to be tested is equipped with a screw sleeve 200; if the sensor is not turned on, it means that the detection element 211 exceeds the fixed depth, and at this time, there is no screw sleeve 200 in the threaded hole 101 of the workpiece 100 to be tested. After the inspection of the workpiece 100 is completed, the robot 20a grabs the inspected workpiece 100 and transfers it to the first conveyor line 22 or the second conveyor line 23; at the same time, the production interface of the touch screen displays and records the production information of the current workpiece 100 to be inspected.

[0130] In this embodiment, a battery production system is also provided, and the battery production system includes the detection device provided in any of the above embodiments. The specific introduction of the detection device can be found above. Since this battery production system adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.

[0131] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A detection fixture, characterized in that: include: A base plate having a work station configured to place a workpiece to be measured; A detection structure is disposed on the bottom plate, and the detection structure includes: A first detection mechanism is located at a first side of the workstation along a first direction of the bottom plate, and the first detection mechanism includes a plurality of detection components, the detection components include a detection element, and the detection element can be moved into the threaded hole of the workpiece to be tested to detect whether there is a screw sleeve in the threaded hole; wherein the movement directions of at least two of the detection elements intersect; The second detection mechanism is arranged on the second side of the workstation along the first direction of the base plate, and is configured to detect whether there is a screw sleeve in the threaded hole on the second side of the workpiece to be tested; the second detection mechanism includes a plurality of the detection components, and the moving directions of at least two of the detection elements in the second detection mechanism intersect.

2. The detection fixture according to claim 1, characterized in that: Among the multiple detection components in the first detection mechanism and / or the second detection mechanism, the moving direction of the detection element of one detection component is parallel to the first direction, and the moving directions of the detection elements of the remaining detection components intersect with the first direction.

3. The detection fixture according to claim 1, characterized in that: The detection assembly further includes a driving member, which is connected to the detection element and is configured to drive the detection element to move back and forth.

4. The detection fixture according to claim 3, characterized in that: The detection element is detachably connected to the driving member.

5. The detection fixture according to claim 4, characterized in that: The detection assembly includes detection elements of multiple different models, and any one of the detection elements of multiple different models can be connected to the driving member; wherein one model of the detection element corresponds to one model of the screw sleeve.

6. The detection fixture according to claim 1, characterized in that: The detection component also includes a sensor, which is configured to output a first signal when sensing that the distance between the detection element and the screw sleeve is less than or equal to a preset distance.

7. The detection fixture according to claim 1, characterized in that: Also includes: The heightening plate is arranged on the work station of the base plate and is configured to carry the workpiece to be measured so that the threaded hole of the workpiece to be measured and the detection element are at the same height relative to the base plate.

8. The detection fixture according to claim 1, characterized in that: The bottom plate has a plurality of the workstations; The number of the detection structures is multiple groups, one group of the detection structures corresponds to one workstation, and each group of the detection structures corresponds to a different type of the workpiece to be detected.

9. A detection device, characterized in that: include: The detection fixture as described in any one of claims 1 to 8; The transfer mechanism includes a manipulator, and the manipulator is configured to grab and transfer the workpiece to be tested to the workstation of the detection fixture; or grab and transfer the workpiece to be tested from the workstation to other locations.

10. The detection device according to claim 9, characterized in that: Also includes: A first conveying line is configured to convey the workpiece to be tested, in which all threaded holes of the workpiece to be tested are equipped with threaded sleeves; A second conveying line is configured to convey the workpiece to be tested, at least part of which has no threaded sleeve installed in the threaded hole; The robot is configured to grab the workpiece to be tested from the workstation and transfer it to the first conveying line or the second conveying line.

11. The detection device according to claim 10, characterized in that: Also includes: A first controller is electrically connected to the manipulator and the sensor of each detection component, and is configured to control the manipulator to grasp and transfer the workpiece to be detected to the workstation; And based on the sensing result of the sensor, the robot is controlled to transfer the workpiece to be measured on the workstation to the first conveying line or the second conveying line.

12. The detection device according to claim 11, characterized in that: Also includes: The second controller is electrically connected to the driving member and the sensor of each detection component, and is configured to control the opening and closing of the driving member, and to control the driving force of the corresponding driving member to be within a preset range based on the first signal output by the sensor.

13. The detection device according to claim 9, characterized in that: Also includes: A pick-up plate having a receiving groove, the receiving groove matches the contour of the workpiece to be measured and is configured to receive the workpiece to be measured; The robot arm is configured to grab the workpiece to be measured from the picking plate and transfer it to the workstation.

14. The detection device according to claim 9, characterized in that: The workpiece to be measured has a first surface and a second surface opposite to each other along the thickness direction thereof; The manipulator comprises an adsorption component and a clamping component; the adsorption component is configured to adsorb the workpiece to be measured from a first surface of the workpiece to be measured; the clamping component is configured to clamp the workpiece to be measured on both sides along a direction perpendicular to a thickness direction of the workpiece to be measured.

15. A battery production system, characterized in that: Comprising a detection device as described in any one of claims 9 to 14.

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