Screw detection device and battery production line

Abstract

The present application discloses a screw sleeve detection device and a battery production line, and relates to the field of battery production technology, wherein the screw sleeve detection device includes an operating platform, a driving device, a sensing component and a protective component, wherein the operating platform is formed with a positioning portion for placing a workpiece to be inspected; the driving device has a driving portion that can move in a set direction, and a movable plug-in portion is provided on the driving portion, and the plug-in portion is used to be plugged into the threaded hole of the workpiece to be inspected; the sensing component includes a triggering portion and a sensing portion respectively arranged on the driving portion and the plug-in portion, and the sensing portion can send out a sensing signal when it senses the triggering portion within its sensing range; the protective component includes a screw sleeve recognition portion and a control device, and the screw sleeve recognition portion is used to send out a recognition signal when it recognizes the screw sleeve outside the threaded hole of the workpiece to be inspected, and the control device is used to control the driving device to stop the action according to the recognition signal. The technical solution provided by the present application improves the accuracy of screw sleeve missing identification and improves the detection efficiency by automatic induction.

Description

Technical Field

[0001] The present application relates to the technical field of battery production, and in particular to a screw sleeve detection device and a battery production line. Background Art

[0002] With the development of lightweight new energy vehicle industry, more and more aluminum alloy die-castings are used in power battery packs. In order to ensure the strength of the internal threads on aluminum alloy die-castings, the assembly process of aluminum alloy die-castings usually requires the installation process of wire screw inserts. After the installation process of wire screw inserts, it is generally necessary to inspect and identify the wire screw inserts to prevent missing installation of the screw inserts. However, the more common inspection method is manual visual inspection, which leads to a high risk of missing screw inserts without being identified. Utility Model Content

[0003] The main purpose of the present application is to propose a screw sleeve detection device and a battery production line, which aims to improve the problem of a high risk of screw sleeves being missed and not identified in the method of manual visual inspection to identify screw sleeves.

[0004] In the first aspect, the screw sleeve detection device proposed in the present application comprises:

[0005] The working platform is formed with a positioning portion for placing the workpiece to be inspected;

[0006] A driving device, comprising a driving part movable relative to the positioning part in a set direction, wherein the driving part is provided with a plug-in part movable along the set direction, and the plug-in part is used to be plugged into a threaded hole of the workpiece to be inspected;

[0007] The sensing component comprises a sensing part and a triggering part which are opposite to each other in the set direction, wherein one of the sensing part and the triggering part is arranged on the driving part, and the other is arranged on the plug-in part, and within the movable stroke of the plug-in part, the sensing part can send out a sensing signal when sensing the triggering part within its sensing range; and

[0008] The protection component includes a screw sleeve identification part and a control device. The screw sleeve identification part is arranged corresponding to the positioning part, and is used to send an identification signal when the screw sleeve is identified outside the threaded hole of the workpiece to be inspected. The control device electrically connects the screw sleeve identification part and the driving device to control the driving device to stop moving according to the identification signal.

[0009] The technical solution provided by the present application is that the workpiece to be inspected can be positioned and placed on the work platform through the positioning part, and the driving device can drive the plug-in part to move along the set direction through the driving part to extend into the threaded hole of the workpiece to be inspected. If the threaded hole is missing a screw sleeve or the screw sleeve is installed too deep, the plug-in part is difficult to contact the screw sleeve, and there is no relative movement between the sensing part and the triggering part respectively installed on the driving part and the plug-in part, and it is difficult for the sensing part to sense the triggering part within its sensing range, thereby failing to send out a sensing signal; if the screw sleeve is correctly installed in the threaded hole and the plug-in part can contact the screw sleeve, there is relative movement between the sensing part and the triggering part, and the sensing part can sense the triggering part within its sensing range, thereby sending out a sensing signal, and manually determining the presence or absence of the sensing signal, or the system determining whether the sensing signal is received, can replace manual visual determination of whether the screw sleeve is missing in the threaded hole of the workpiece to be inspected, thereby improving the accuracy rate of the screw sleeve missing but not being identified, ensuring product quality, and reducing manual work intensity and improving work efficiency.

[0010] In some embodiments, the sensing portion includes a sensing probe and an indicator light that are electrically connected to each other, the sensing probe is disposed toward the triggering portion, and the indicator light can emit light after the sensing probe sends a sensing signal.

[0011] Among them, by setting the indicator light to be connected with the battery cell of the sensing probe, it can light up after the sensing probe sends a sensing signal. By manually identifying the light of the indicator light, it can be directly determined that there are threaded holes installed in the workpiece to be inspected, thereby improving the detection and identification efficiency.

[0012] In some embodiments, the driving part has an approaching position close to the positioning part within its movable stroke, and when the driving part is in the approaching position, the control device can receive a positioning signal;

[0013] The screw sleeve detection device also includes an alarm device. The control device is electrically connected to the sensing part and the alarm device. When the control device receives the arrival signal but does not receive the sensing signal, the control device can control the alarm device to sound an alarm.

[0014] Among them, the generation of the in-position signal means that the driving unit has completed the driving. At this time, it can be determined whether the threaded sleeve is missing in the threaded hole of the workpiece to be inspected. After that, if the control device receives the sensing signal, it means that the threaded sleeve is correctly installed in the threaded hole. If the control device does not receive the sensing signal, it means that the threaded sleeve is missing in the threaded hole or the threaded sleeve is installed too deep. This determination method makes the control device more accurate in identifying the threaded sleeve, and can intuitively feedback the determination result of "missing the threaded sleeve or the threaded sleeve is installed too deep" to the operator through the alarm device, further reducing the probability of defective products flowing out.

[0015] In some embodiments, a limiting column is provided on one of the driving part and the working platform, and when the driving part moves to the approaching position, the limiting column can abut against the other one of the driving part and the working platform.

[0016] Among them, through the setting of the limit column, on the one hand, it can ensure that the driving part reaches the approach position, so that the sensing part sends out a sensing signal based on this premise, thereby ensuring the accuracy of the sensing result; on the other hand, the existence of the limit column can limit the driving part from continuing to move close to the positioning part, thereby preventing overpressure and protecting the sensing part and the screw sleeve identification part in the screw sleeve detection device.

[0017] In some embodiments, the driving device includes a driving cylinder, and the driving portion includes a cylinder rod of the driving cylinder.

[0018] Among them, the principle and structure of the driving cylinder are simple, easy to install and maintain, and the requirements for operators are not high. At the same time, the purchase cost of the driving cylinder is low, which is conducive to controlling the overall cost of the screw sleeve detection device.

[0019] In some embodiments, a two-hand start switch is further provided on the working platform, and the two-hand start switch is electrically connected to the driving device.

[0020] Among them, the setting of the two-hand start switch has an anti-mistake effect. During the driving process of the driving device, it is ensured that the operator's hands remain in the position of pressing the two-hand start switch. Once one hand is separated from the two-hand start switch, the driving device will stop moving, reducing the probability of the operator's hands being crushed due to the activity of the driving part on the driving device.

[0021] In some embodiments, the screw sleeve identification portion includes an infrared detection probe.

[0022] Among them, the infrared detection probe can measure the height of the target without contacting it, and its use is more convenient and flexible. At the same time, the infrared detection probe also has high detection accuracy, and can accurately determine the floating height of the screw sleeve to perform more precise feedback control on the drive device to prevent the sensing part from being squeezed.

[0023] In some embodiments, the sensing part, the trigger part and the plug-in part correspond one-to-one to form a plug-in sensing group, and a plurality of the plug-in sensing groups are arranged corresponding to the positioning part to respectively plug-in sense the plurality of threaded holes of the workpiece to be inspected.

[0024] Among them, by setting up multiple plug-in sensing groups, under the drive of the same driving unit, the multiple plug-in sensing groups can simultaneously perform plug-in sensing detection on multiple threaded holes of the workpiece to be inspected, thereby ensuring the detection efficiency.

[0025] In some embodiments, a reset member is provided between the plug-in portion and the driving portion, and the reset member is used to provide a reset force for the plug-in portion to move close to the positioning portion.

[0026] Among them, through the setting of the reset member, a reset force can be provided for the plug-in part to move close to the positioning part, thereby ensuring that the plug-in part can always be kept in a position convenient for plug-in. On the one hand, it can improve the detection efficiency of the screw sleeve detection device, and on the other hand, it can limit unnecessary movement of the plug-in part relative to the driving part, preventing the trigger part from frequently triggering the sensing part.

[0027] In some embodiments, the plug-in portion is arranged in an elongated shape in the set direction;

[0028] The reset member comprises a spring, the spring is sleeved on the plug-in portion, and two ends of the spring are respectively connected to the driving portion and the plug-in portion.

[0029] Among them, by setting the spring sleeve on the plug-in part, on the one hand, the direction of the resetting force applied by the spring to the plug-in part can be closer to the set direction, so as to smoothly drive the plug-in part to move, so as to improve the reliability of its resetting drive; on the other hand, the space occupied by the spring partially overlaps with the space occupied by the plug-in part, which can increase the integration level of the screw sleeve detection device and reduce the occupation of the working space.

[0030] In some embodiments, the driving device, the plug-in part and the sensing component correspond one-to-one to form an active detection group, and the active detection group is provided in multiple groups. The driving parts in the multiple active detection groups are set to different corresponding set directions during the activity process, so as to correspond to the threaded holes in different directions on the workpiece to be inspected.

[0031] Among them, by setting up multiple active detection groups along different set directions, multiple threaded holes in different directions in the workpiece to be inspected can be identified, so that the threaded sleeve detection device can detect and identify the workpiece to be inspected with a more complex structure.

[0032] In a second aspect, the present application also proposes a battery production line, which includes the above-mentioned screw sleeve detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0034] Figure 1A structural schematic diagram of an embodiment of a screw sleeve detection device provided in the present application;

[0035] Figure 2 A front view of an embodiment of a screw sleeve detection device provided by the present application;

[0036] Figure 3 for Figure 1 A schematic diagram of the exploded structure of part of the structure of the middle screw sleeve detection device;

[0037] Figure 4 for Figure 1 A side view of part of the structure of the middle screw sleeve detection device.

[0038] Description of Figure Numbers:

[0039] 100. Screw sleeve detection device;

[0040] 1. Work platform; 11. Positioning part; 2. Driving device; 2a. Driving cylinder; 21. Driving part; 21a. Cylinder rod; 21b. Movable plate; 3. Connecting part; 31. Annular protrusion; 4. Sensing component; 41. Sensing part; 411. Sensing probe; 412. Indicator light; 42. Triggering part; 5. Protective component; 51. Screw sleeve identification part; 51a. Infrared detection probe; 52. Control device; 6. Alarm device; 7. Limiting column; 8. Two-hand start switch; 9. Pressing cylinder; X. Set direction;

[0041] 200. Workpiece to be inspected; 210. Threaded hole.

[0042] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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).

[0048] 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, which 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, and therefore should not be understood as a limitation on the embodiments of the present application.

[0049] 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.

[0050] With the development of lightweight in the new energy vehicle industry, more and more aluminum alloy die-castings are used in power battery packs. For example, the module end plates, side plates and other components in the power battery pack are mostly aluminum alloy die-castings. Due to the low hardness of aluminum alloy die-castings themselves, in order to ensure the strength of the internal threads on aluminum alloy die-castings and prevent slipping, aluminum alloy die-castings need to be assembled with wire screw sleeves on the threads after tapping. Wire screw sleeves are a new type of internal thread fasteners suitable for threaded connection scenarios. Wire screw sleeves are screwed into and fastened in the threaded holes of one of the connected parts to form standard internal threads for bolt (or screw) connection. Wire screw sleeves are also called threaded sleeves. Wire screw sleeves are a spring-shaped internal and external thread concentric body made of high-strength, high-precision, smooth-surfaced cold-rolled diamond stainless steel wires, which are mainly used to enhance and protect the internal threads of low-strength materials. The principle is to form an elastic connection between the screw and the internal threads of the base, eliminate thread manufacturing errors, and improve connection strength.

[0051] At present, the assembly of wire thread inserts is generally completed manually. Due to the difficulty in avoiding the problem of human negligence, there may be problems with the thread inserts being missed in some threaded holes during assembly. Therefore, the products generally need to go through an inspection and identification process to prevent the thread inserts from being missed. However, the more common inspection method is still manual visual inspection, which leads to a high risk of the thread inserts being missed and not being identified, affecting product quality.

[0052] Analyzing the causes of the above problems, it can be seen that in the method of manual visual inspection, as the work energy of personnel will decrease, the human eye will easily produce visual fatigue, and the accuracy and detection efficiency of visual identification will also decrease accordingly, which leads to the high risk of missing the screw sleeve and not being identified. Automated or semi-automated detection devices can be designed to replace human visual inspection to reduce the risk of missing the screw sleeve and not being identified.

[0053] Since the wire thread sleeve is installed in the threaded hole, it is difficult to directly identify it from the outside. Considering setting a plug-in part to extend into the threaded hole, the presence of the thread sleeve in the threaded hole can be reflected from the outside through the different plug-in heights of the plug-in part. The sensor part can further identify the change in height, and the information on the presence or absence of the thread sleeve can be fed back through the electrical signal triggered by the sensor part.

[0054] In view of this, the present application provides a screw sleeve detection device, which can at least improve the problem of a high risk of screw sleeves being missed and not identified in the method of identifying screw sleeves by manual visual inspection.

[0055] To facilitate understanding of the screw sleeve detection device 100 provided in the present application, the following is described in conjunction with the accompanying drawings, wherein: Figure 1 A structural schematic diagram of an embodiment of a screw sleeve detection device provided in the present application; Figure 2 for Figure 1 A front view of a partial structure of the middle screw sleeve detection device; Figure 3 for Figure 1 A schematic diagram of the exploded structure of part of the structure of the middle screw sleeve detection device; Figure 4 for Figure 1 A side view of part of the structure of the middle screw sleeve detection device.

[0056] See also Figures 1 to 4 In one embodiment of the present application, the screw sleeve detection device 100 includes a work platform 1, a driving device 2, a sensing component 4 and a protective component 5. The work platform 1 is formed with a positioning portion 11 for placing a workpiece 200 to be inspected; the driving device 2 has a driving portion 21 that can move relative to the positioning portion 11 in a set direction X, and the driving portion 21 is provided with a plug-in portion 3 that can move along the set direction X, and the plug-in portion 3 is used to be plugged into the threaded hole 210 of the workpiece 200 to be inspected; the sensing component 4 includes a sensing portion 41 and a triggering portion 42 that are relative to each other in the set direction X, and the sensing portion 41 One of the trigger parts 42 is arranged on the driving part 21, and the other is arranged on the plug-in part 3. Within the movable stroke of the plug-in part 3, the sensing part 41 can send out a sensing signal when it senses the trigger part 42 within its sensing range; the protective component 5 includes a screw sleeve identification part 51 and a control device 52. The screw sleeve identification part 51 is arranged corresponding to the positioning part 11, and is used to send out an identification signal when the screw sleeve is identified outside the threaded hole 210 of the workpiece 200 to be inspected. The control device 52 is electrically connected to the screw sleeve identification part 51 and the driving device 2 to control the driving device 2 to stop moving according to the identification signal.

[0057] It should be noted that the application scenarios of the threaded sleeve detection device 100 proposed in the present application include but are not limited to the detection of wire threaded sleeves on aluminum alloy die-castings of power battery packs, and may also be the detection of threaded sleeves in threaded holes 210 of cast iron parts or magnesium alloy parts in other devices. The threaded sleeves include but are not limited to wire threaded sleeves, and may also be other types of threaded sleeves, such as pin threaded sleeves.

[0058] The function of the work platform 1 is to place the workpiece 200 to be inspected, and to position the workpiece 200 to be inspected through the positioning portion 11. The structure of the positioning portion 11 is determined according to the specific shape of the workpiece 200 to be inspected. Generally speaking, the positioning portion 11 can be set to a groove structure or a protrusion structure that matches the shape of the workpiece 200 to be inspected, and a clamping structure (such as a clamping cylinder 9) is used to stably hold the workpiece 200 to be inspected on the positioning portion 11, thereby completing the positioning, for example Figure 2 and Figure 3 Of course, the positioning portion 11 can also be configured as a plurality of movably disposed clamping portions to clamp and position the workpiece 200 to be inspected from different directions, and this embodiment is not limited thereto.

[0059] Generally speaking, "drive device 2" refers to an automated drive device 2, which has many specific structural types, such as a push rod motor, a drive cylinder, a drive module, etc. The drive device 2 can be directly or indirectly arranged on the work platform 1, and it usually has a drive part 21 that can move along a set direction X, and the set direction X is the same as the direction of the threaded hole 210 of the workpiece 200 to be inspected after positioning. The specific structure of the drive part 21 depends on the specific type of the drive device 2, and this embodiment does not limit this; in combination with the drive part 21, a plug-in part 3 that is movable relative to the drive part 21 along the set direction X is also arranged on the drive part 21. Within the movable stroke of the drive part 21 close to the positioning part 11 (that is, within the stroke of the drive part 21 close to the positioning part 11 during the detection process), the plug-in part 3 can extend into the threaded hole 210 of the workpiece 200 to be inspected, and the setting position of the plug-in part 3 on the drive part 21 should correspond to the position of the threaded hole 210 of the workpiece 200 to be inspected after positioning in the set direction X.

[0060] There are many forms of specific structures of the "plug-in portion 3", but the end of the plug-in portion 3 for inserting into the threaded hole 210 is usually formed with a slender structure (such as a pin). The outer diameter of the slender structure needs to be smaller than the size of the threaded hole 210 and larger than the inner diameter of the screw sleeve therein, so as to ensure that the end of the plug-in portion 3 can both insert into the threaded hole 210 and abut against the end of the screw sleeve. Therefore, it can be understood that if a screw sleeve is installed in the threaded hole 210, the plug-in portion 3 can be blocked by the screw sleeve after inserting into the threaded hole 210 and move in the opposite direction relative to the driving portion 21 along the set direction X. If the screw sleeve is not installed in the threaded hole 210, the plug-in portion 3 can continue to move along the set direction X with the driving portion 21 after inserting into the threaded hole 210, so that there is no movement relative to the driving portion 21; there are many possible ways for the plug-in portion 3 to move on the driving portion 21. For example, a slide rail extending along the set direction X is provided on the driving portion 21, and the plug-in portion 3 is movably connected to the slide rail through a slider. Figure 3 As shown in the figure, the plug-in part 3 is embedded in the driving part 21, and the plug-in part 3 is movable along the set direction X by means of shaft-hole matching.

[0061] The “sensing component 4” includes a sensing part 41 and a triggering part 42 which are opposite to each other along a set direction X. The specific structure of the sensing part 41 can be a laser sensor or an infrared sensor. No matter which type of sensor it is, it usually has a certain sensing range (which can also be understood as a sensing distance). The triggering part 42 also has a triggering end opposite to the sensing part 41. The triggering end usually has a certain surface accuracy and size to ensure accurate recognition by the sensing part 41; “one of the sensing part 41 and the triggering part 42 is arranged on the driving part 21, and the other is arranged on the plug-in part 3” includes “the sensing part 41 is arranged on the driving part 21, and the triggering part 42 is arranged on the plug-in part 3” and “the triggering part 42 is arranged on the driving part 21, and the sensing part 41 is arranged on the plug-in portion 3", and the sensing portion 41 has a certain sensing range. As the plug-in portion 3 moves in the opposite direction relative to the driving portion 21 along the set direction X, the sensing portion 41 and the triggering portion 42 can move relatively close to each other (one of them is close to the other), and the sensing portion 41 can sense the triggering portion 42 within its sensing range, thereby sending out a sensing signal. The sensing signal can be a visual signal directly sent to the outside world (the visual signal is different from the screw sleeve structure that needs to be recognized by the naked eye in visual detection. It can be a different color signal, or a light-on signal and a light-off signal, which can be more easily judged manually) or an auditory signal, or it can be an electrical signal transmitted to the system of the screw sleeve detection device 100, which is not limited in this embodiment.

[0062] In some cases, although a threaded sleeve is installed in the threaded hole 210 of the workpiece 200 to be inspected, the threaded sleeve is not fully installed in place and is floating, that is, the threaded sleeve is partially outside the threaded hole 210. On the one hand, this may cause the threaded sleeve to be damaged by extrusion during the assembly of the workpiece, or crush the workpiece assembled with it. On the other hand, this may cause the plug-in portion 3 to contact the threaded sleeve prematurely, thereby generating excessive relative displacement relative to the driving portion 21, and further causing the trigger portion 42 to contact the sensing portion 41 and damage it. The "protective component 5" includes a screw sleeve identification part 51 and a control device 52. The specific structure of the screw sleeve identification part 51 can be an infrared sensor, a visual camera or other types of identification components. In short, the screw sleeve identification part 51 can identify the floating screw sleeve in the threaded hole 210 of the workpiece 200 to be inspected, thereby sending out an identification signal, and the identification signal can be received by the control device 52, thereby feedback controlling the driving device 2 to stop the action; there are many possible settings for the screw sleeve identification part 51. For example, the screw sleeve identification part 51 can be fixedly set on the working platform 1, or it can be set on the driving part 21, as long as it can be set toward the positioning part 11 and is not blocked.

[0063] The technical solution provided by the present application is that the work platform 1 can position and place the workpiece 200 to be inspected through the positioning part 11, and the driving device 2 can drive the plug-in part 3 to move along the set direction X through the driving part 21 to extend into the threaded hole 210 of the workpiece 200 to be inspected. If the threaded hole 210 is missing a screw sleeve or the screw sleeve is installed too deep, it is difficult for the plug-in part 3 to contact the screw sleeve, and there is no relative movement between the sensing part 41 and the triggering part 42 respectively installed on the driving part 21 and the plug-in part 3, and it is difficult for the sensing part 41 to sense the triggering part 42 within its sensing range, so that the sensing signal cannot be sent; if the screw sleeve is correctly installed in the threaded hole 210, the plug-in part 3 can contact the screw sleeve, and there is relative movement between the sensing part 41 and the triggering part 42. When the sensing part 41 is moved, the trigger part 42 can be sensed by the sensing part 41 within its sensing range, thereby sending out a sensing signal. By manually determining the presence or absence of the sensing signal, or the system determining whether the sensing signal is received, it can replace the manual visual determination of whether the threaded sleeve is missing in the threaded hole 210 of the workpiece 200 to be inspected, thereby improving the accuracy rate of the missing but unrecognized threaded sleeve, ensuring product quality, and reducing manual labor intensity and improving work efficiency; not only that, for the situation where the threaded sleeve is misinstalled in the threaded hole 210, for example, a threaded sleeve with a smaller outer diameter is installed in the threaded hole 210 of the workpiece 200 to be inspected, the threaded sleeve will fall into the deep part of the threaded hole 210, which will also cause the plug-in part 3 to be unable to contact the threaded sleeve, thereby reflecting the "missing installation" state.

[0064] Moreover, due to the setting of the protection component 5, the screw sleeve identification part 51 therein can identify the screw sleeve that is floating in the threaded hole 210 of the workpiece 200 to be inspected, thereby sending an identification signal, and the control device 52 can feedback control the driving device 2 to stop the action. On the one hand, it prevents the plug-in part 3 from contacting the screw sleeve too early and causing excessive relative reverse movement relative to the driving part 21, so as to prevent the trigger part 42 from crushing the sensing part 41. On the other hand, "the control device 52 feedback controls the driving device 2 to stop the action" can also reflect the existence of the "floating" screw sleeve, thereby reducing the outflow of products with this type of quality problems.

[0065] Please refer to Figure 3 and Figure 4 In one embodiment, the sensing portion 41 includes a sensing probe 411 and an indicator light 412 electrically connected to each other. The sensing probe 411 is disposed toward the trigger portion 42 , and the indicator light 412 can emit light after the sensing probe 411 sends a sensing signal.

[0066] It should be noted that the sensing probe 411 and the indicator light 412 are electrically connected to each other, and the connection method can be direct electrical connection. In this case, the sensing probe 411 and the indicator light 412 are in the same series circuit. When the sensing probe 411 senses the trigger part 42 within its sensing range, the sensing probe 411 can turn on its series circuit, so that the indicator light 412 lights up; the connection method can also be indirect electrical connection. For example, the sensing probe 411 and the indicator light 412 are feedback-connected through the control device 52, which is not limited in this embodiment.

[0067] According to the above technical solution, by setting the indicator light 412 to be connected to the battery cell of the sensing probe 411, it can emit light after the sensing probe 411 sends a sensing signal. By manually identifying the light of the indicator light 412, it can be directly determined that a threaded hole 210 is installed in the workpiece 200 to be inspected, thereby improving the detection and identification efficiency.

[0068] Moreover, since the indicator light 412 corresponds to the sensing probe 411, when inspecting multiple threaded holes 210 of the workpiece 200 at the same time, by identifying whether multiple indicator lights 412 are lit or not, the position and number of missing screw sleeves can be quickly located, which facilitates manual marking for subsequent quality adjustment.

[0069] See also Figure 1 and Figure 2 In one embodiment, the driving portion 21 has an approach position close to the positioning portion 11 within its active stroke. When the driving portion 21 is in the approach position, the control device 52 can receive an in-place signal. The screw sleeve detection device 100 also includes an alarm device 6. The control device 52 is electrically connected to the sensing portion 41 and the alarm device 6. When the control device 52 receives an in-place signal and does not receive a sensing signal, the control device 52 can control the alarm device 6 to sound an alarm.

[0070] It should be noted that the "approach position" and the "arrival signal" are corresponding, that is, when the driving unit 21 reaches the approach position, the control device 52 can receive the arrival signal, and the arrival signal can come from a variety of structures, such as an arrival sensor. The driving unit 21 can trigger the arrival sensor to send an arrival signal when it reaches the approach position. It can also be judged that the driving unit 21 has reached the approach position by the node when the driving device 2 completes the driving action, and the arrival signal is sent through the driving device 2. It can also be judged that the driving unit 21 has reached the approach position by the driving time, and the arrival signal is sent through a timer. The specific source of the arrival signal in the embodiment of the present application is not limited.

[0071] The function of the "alarm device 6" is to intuitively feed back to the operator the information of missing or wrongly installed threaded sleeves in the threaded hole 210 of the workpiece 200 to be inspected. Its specific structural type includes a sound alarm device 6 or a flashing alarm device 6, which is not limited in this embodiment.

[0072] According to the above technical solution, the generation of the in-position signal means that the driving unit 21 has completed the driving. At this time, it can be determined whether the threaded sleeve is missing in the threaded hole 210 of the workpiece 200 to be inspected. Thereafter, if the control device 52 receives the sensing signal, it means that the threaded sleeve is correctly installed in the threaded hole 210. If the control device 52 does not receive the sensing signal, it means that the threaded sleeve is missing in the threaded hole 210 or the threaded sleeve is installed too deep. This determination method makes the control device 52 more accurate in determining the identification of the threaded sleeve, and can intuitively feed back the determination result of "missing the threaded sleeve or the threaded sleeve is installed too deep" to the operator through the alarm device 6, thereby further reducing the probability of defective products flowing out.

[0073] See also Figure 3 and Figure 4 In one embodiment, a limiting column 7 is provided on one of the driving part 21 and the working platform 1 , and when the driving part 21 moves to the approaching position, the limiting column 7 can abut against the other one of the driving part 21 and the working platform 1 .

[0074] It should be noted that the limit column 7 can be set on the driving part 21. In this case, when the driving part 21 reaches the approach position, the limit column 7 can abut against the working platform 1, thereby limiting the position of the driving part 21. The limit column 7 can also be set on the working platform 1. In this case, when the driving part 21 reaches the approach position, the limit column 7 can abut against the limit column 7, thereby limiting the movement of the driving part 21.

[0075] According to the above technical solution, by setting the limit column 7, on the one hand, it can ensure that the driving part 21 reaches the approach position, so that the sensing part 41 sends out a sensing signal based on this premise, thereby ensuring the accuracy of the sensing result. On the other hand, the existence of the limit column 7 can limit the driving part 21 from continuing to move close to the positioning part 11, thereby preventing overpressure and protecting the sensing part 41 and the screw sleeve identification part 51 in the screw sleeve detection device 100.

[0076] See also Figure 1 and Figure 2 In one embodiment, the driving device 2 includes a driving cylinder 2a, and the driving part 21 includes a cylinder rod 21a of the driving cylinder 2a.

[0077] It should be noted that the driving cylinder 2a drives the piston to move through air pressure, thereby driving the cylinder rod 21a to perform telescopic movement; the driving part 21 may only include the cylinder rod 21a, in which case the plug-in part 3 and the sensing component 4 are both arranged on the cylinder rod 21a, and the driving part 21 may also include other components besides the cylinder rod 21a, such as Figure 1 and Figure 2As shown, for example, a movable plate 21b is arranged at the end of the cylinder rod 21a, and the plug-in portion 3 and the sensing component 4 are both arranged on the movable plate 21b. In either case, the plug-in portion 3 and the sensing component 4 are directly or indirectly arranged on the cylinder rod 21a.

[0078] According to the above technical solution, the principle and structure of the driving cylinder 2a are simple, easy to install and maintain, and have low requirements on operators. At the same time, the purchase cost of the driving cylinder 2a is low, which is conducive to controlling the overall cost of the screw sleeve detection device 100.

[0079] In view of the fact that the screw sleeve detection device 100 provided in the embodiment of the present application is driven by the driving device 2, please refer to Figure 1 and Figure 2 In one embodiment, a two-hand start switch 8 is further provided on the working platform 1 , and the two-hand start switch 8 is electrically connected to the driving device 2 .

[0080] It should be noted that the "two-hand activation switch 8" refers to a switch that can be activated only by two hands, for example Figure 2 As shown in the figure, the two-hand start switch 8 includes two left and right parts, and there is a certain interval between the two parts to ensure that the operator needs to press the two parts of the two-hand start switch 8 with both hands to start the drive device 2.

[0081] According to the above technical solution, the setting of the two-hand start switch 8 has an anti-foolproof effect. During the driving process of the driving device 2, it is ensured that the operator's hands remain in the position of pressing the two-hand start switch 8. Once one hand is separated from the two-hand start switch 8, the driving device 2 will stop moving, reducing the probability of the operator's hands being crushed due to the activity of the driving part 21 on the driving device 2.

[0082] In one embodiment, the screw sleeve identification portion 51 includes an infrared detection probe 51 a.

[0083] It should be noted that the detection and identification principle of the infrared detection probe 51a is that the infrared detection probe 51a can perform target height detection on the surface of the workpiece 200 to be inspected. When a target higher than a set size is found at the position of the threaded hole 210, the floating height of the screw sleeve in the threaded hole 210 is determined.

[0084] According to the above technical solution, the infrared detection probe 51a can measure the height of the target without contacting it, and its use is more convenient and flexible. At the same time, the infrared detection probe 51a also has a high detection accuracy and can accurately judge the floating height of the screw sleeve to perform more precise feedback control on the drive device 2 to prevent the sensing part 41 from being squeezed.

[0085] See also Figure 3In one embodiment, the sensing part 41, the triggering part 42 and the plug-in part 3 correspond to each other to form a plug-in sensing group, and a plurality of plug-in sensing groups are arranged corresponding to the positioning part 11 to respectively plug-in sense the plurality of threaded holes 210 of the workpiece 200 to be inspected.

[0086] It should be noted that there are usually multiple threaded holes 210 with the same orientation on the workpiece 200 to be inspected; the plug-in sensing group is composed of a sensing part 41, a triggering part 42 and a plug-in part 3, and multiple plug-in sensing groups should be understood to be arranged on the same driving part 21.

[0087] According to the above technical solution, by setting up multiple plug-in sensing groups, under the drive of the same driving unit 21, the multiple plug-in sensing groups can simultaneously perform plug-in sensing detection on multiple threaded holes 210 of the workpiece 200 to be inspected, thereby ensuring the detection efficiency.

[0088] In one embodiment, a restoring member is disposed between the plug-in portion 3 and the driving portion 21 , and the restoring member is used to provide a restoring force for the plug-in portion 3 to move close to the positioning portion 11 .

[0089] It should be noted that the function of the "resetting member" is to provide a resetting force for the plug-in part 3 to move close to the positioning part 11, that is, the plug-in part 3 should be in a position close to the positioning part 11 relative to the driving part 21 by default, so as to be plugged into the threaded hole 210 of the workpiece 200 to be inspected as soon as possible; there are many possible structural types of the resetting member, such as elastic rubber, a group of repelling or attracting magnetic poles, and the setting position of the resetting member is determined according to its specific structural type, which is not limited in this embodiment.

[0090] According to the above technical scheme, by setting the reset member, a reset force can be provided for the plug-in part 3 to move close to the positioning part 11, thereby ensuring that the plug-in part 3 can always be maintained in a position convenient for plugging. On the one hand, the detection efficiency of the screw sleeve detection device 100 can be improved, and on the other hand, unnecessary movement of the plug-in part 3 relative to the driving part 21 can be limited, thereby preventing the trigger part 42 from frequently triggering the sensing part 41.

[0091] See also Figure 3 and Figure 4 In one embodiment, the plug-in portion 3 is arranged in an elongated shape in the setting direction X; the reset member includes a spring, the spring is sleeved on the plug-in portion 3, and the two ends of the spring are respectively connected to the driving portion 21 and the plug-in portion 3.

[0092] It should be noted that "the plug-in portion 3 is arranged in an elongated shape in the setting direction X" means that the size of the plug-in portion 3 in the setting direction X is larger than the size in other directions. For example, one type of the plug-in portion 3 includes a plug pin, which is arranged in an elongated shape along its axial direction. The spring is one of the structural forms of the reset member. The spring is generally connected or abutted at both ends. The middle part of the spring is hollow, so that it can be sleeved outside the plug-in portion 3. The types of springs generally include tension springs and compression springs. There are two situations in which the setting position of the plug-in portion 3 relative to the driving portion 21 includes, for example, Figure 4 As shown in ( Figure 4 The spring is not shown in the figure, but it does not affect the understanding of the present solution). An annular protrusion 31 is formed on the circumferential side of the end of the plug-in part 3 relative to the driving part 21 close to the positioning part 11, and the spring is supported between the annular protrusion 31 and the driving part 21. In this case, the spring is configured as a compression spring. For another example, an annular protrusion 31 is formed on the circumferential side of the end of the plug-in part 3 relative to the driving part 21 away from the positioning part 11, and the spring is stretched between the annular protrusion 31 and the driving part 21. In this case, the spring is configured as a tension spring.

[0093] According to the above technical solution, by means of a spring sleeve arranged on the plug-in part 3, on the one hand, the direction of the resetting force applied by the spring to the plug-in part 3 can be closer to the set direction X, thereby being able to smoothly drive the plug-in part 3 to move, so as to improve the reliability of its resetting drive; on the other hand, the space occupied by the spring partially overlaps with the space occupied by the plug-in part 3, which can increase the integration level of the screw sleeve detection device 100 and reduce the occupation of the working space.

[0094] See also Figure 3 In one embodiment, the driving device 2, the plug-in part 3 and the sensing component 4 correspond one to one to form an active detection group, and multiple active detection groups are provided. The driving parts 21 in the multiple active detection groups are set to have different corresponding set directions X during the activity process, so as to correspond to the threaded holes 210 with different directions on the workpiece 200 to be inspected.

[0095] It should be noted that there are generally multiple threaded holes 210 with different orientations on the workpiece 200 to be inspected. Obviously, the driving part 21 that moves along a single set direction X is difficult to adapt to the detection of screw sleeves of threaded holes 210 with multiple orientations; wherein, the screw sleeve identification part 51 of the protective device is used to correspond to the positioning part 11, which can at least take into account multiple threaded holes 210 with different orientations. When the axial angles of the multiple threaded holes 210 with different orientations are small, the "floating" screw sleeves in the multiple threaded holes 210 can be identified by a single screw sleeve identification part 51. When the axial angles of the multiple threaded holes 210 with different orientations are large, it is usually necessary to set up multiple screw sleeve identification parts 51, and the "floating" screw sleeves in the corresponding parts of the threaded holes 210 are respectively identified by the multiple screw sleeve identification parts 51.

[0096] According to the above technical solution, by setting multiple active detection groups along different set directions X, multiple threaded holes 210 with different orientations in the workpiece 200 to be inspected can be identified, so that the threaded sleeve detection device 100 can detect and identify the workpiece 200 to be inspected with a more complex structure.

[0097] For example, in Figure 3 In the illustrated embodiment, there are threaded holes 210 on the top, bottom and back of the workpiece 200 to be inspected. In view of this situation, the screw sleeve detection device 100 includes three groups of active detection groups, two larger ones of which are located on the upper and lower sides of the working platform 1, and two driving parts 21 thereof can approach the positioning part 11 of the working platform 1 downward and upward respectively, and the smaller one is located on the rear side of the working platform 1, and the driving part 21 thereof can approach the positioning part 11 of the working platform 1 forward, thereby adapting to this type of workpiece 200 to be inspected.

[0098] The present application also proposes a battery production line, which includes a screw cap detection device 100. The specific structure of the screw cap detection device 100 refers to the above embodiment. Since the battery production line 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.

[0099] The present application proposes a screw sleeve detection device 100, which includes a work platform 1, multiple active detection groups and a protective component 5. The work platform 1 is formed with a positioning portion 11 for placing a workpiece 200 to be inspected. The active detection group includes a driving cylinder 2a, a plug-in portion 3 and a sensing component 4. The driving cylinder 2a in each active detection group has a driving portion 21 that moves along a corresponding set direction X. The plug-in portion 3 can be movably arranged on the driving portion 21 along the set direction X to correspond to a threaded hole 210 in a corresponding direction on the workpiece 200 to be inspected. The sensing component 4 includes a sensing portion 41 and a triggering portion 42. The triggering portion 42 is arranged on a side of the plug-in portion 3 away from the positioning portion 11, and the sensing portion 41 is arranged on the driving portion relative to the triggering portion 42 along the set direction X. 21, in the movable stroke of the driving part 21 close to the positioning part 11, the plug-in part 3 can be inserted into the threaded hole 210 of the workpiece 200 to be inspected, and within the movable stroke of the plug-in part 3 relative to the driving part 21, the trigger part 42 can reach the sensing range of the sensing part 41, so that the sensing part 41 triggers the sensing signal, the protective component 5 includes a screw sleeve identification part 51 and a control device 52, the screw sleeve identification part 51 is arranged corresponding to the positioning part 11, and is used to send an identification signal when the screw sleeve is identified outside the threaded hole 210 of the workpiece 200 to be inspected, and the control device 52 is electrically connected to the screw sleeve identification part 51 and the driving cylinder 2a to control the driving cylinder 2a to stop the action according to the identification signal; a two-hand starting switch 8 is arranged on the working platform 1, and the two-hand starting switch 8 is electrically connected to the driving cylinder 2a.

[0100] In the screw sleeve detection device 100 provided in the present application, the driving air pressure of the driving cylinder 2a is generally greater than 0.6Mpa, and the working voltage is generally 220V. During detection, both hands are required to press the two-handed start switch 8. After starting, the signal is transmitted to the control box. After receiving the signal, the control box controls the driving cylinder 2a to operate.

[0101] 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 screw sleeve detection device, characterized in that: include: The working platform is formed with a positioning portion for placing the workpiece to be inspected; A driving device, comprising a driving part movable relative to the positioning part in a set direction, wherein the driving part is provided with a plug-in part movable along the set direction, and the plug-in part is used to be plugged into a threaded hole of the workpiece to be inspected; The sensing component comprises a sensing part and a triggering part which are opposite to each other in the set direction, wherein one of the sensing part and the triggering part is arranged on the driving part, and the other is arranged on the plug-in part, and within the movable stroke of the plug-in part, the sensing part can send out a sensing signal when sensing the triggering part within its sensing range; and The protection component includes a screw sleeve identification part and a control device. The screw sleeve identification part is arranged corresponding to the positioning part, and is used to send an identification signal when the screw sleeve is identified outside the threaded hole of the workpiece to be inspected. The control device electrically connects the screw sleeve identification part and the driving device to control the driving device to stop moving according to the identification signal.

2. The screw sleeve detection device according to claim 1, characterized in that: The sensing part includes a sensing probe and an indicator light which are electrically connected to each other. The sensing probe is arranged toward the triggering part, and the indicator light can emit light after the sensing probe sends a sensing signal.

3. The screw sleeve detection device according to claim 1, characterized in that: The driving part has an approaching position close to the positioning part within its movable stroke, and when the driving part is at the approaching position, the control device can receive a positioning signal; The screw sleeve detection device also includes an alarm device. The control device is electrically connected to the sensing part and the alarm device. When the control device receives the arrival signal but does not receive the sensing signal, the control device can control the alarm device to sound an alarm.

4. The screw sleeve detection device according to claim 3, characterized in that: A limiting column is arranged on one of the driving part and the working platform, and when the driving part moves to the approaching position, the limiting column can abut against the other one of the driving part and the working platform.

5. The screw sleeve detection device according to claim 1, characterized in that: The driving device includes a driving cylinder, and the driving part includes a cylinder rod of the driving cylinder.

6. The screw sleeve detection device according to claim 1, characterized in that: The working platform is also provided with a two-hand start switch, and the two-hand start switch is electrically connected to the driving device.

7. The screw sleeve detection device according to claim 1, characterized in that: The screw sleeve identification part comprises an infrared detection probe.

8. The screw sleeve detection device according to any one of claims 1 to 7, characterized in that: The sensing part, the trigger part and the plug-in part correspond to each other to form a plug-in sensing group. A plurality of the plug-in sensing groups are arranged corresponding to the positioning part to respectively plug-in sense the plurality of threaded holes of the workpiece to be inspected.

9. The screw sleeve detection device according to any one of claims 1 to 7, characterized in that: A restoring member is provided between the plug-in portion and the driving portion, and the restoring member is used for providing a restoring force for the plug-in portion to move close to the positioning portion.

10. The screw sleeve detection device according to claim 9, characterized in that: The plug-in portion is arranged in an elongated shape in the set direction; The reset member comprises a spring, the spring is sleeved on the plug-in portion, and two ends of the spring are respectively connected to the driving portion and the plug-in portion.

11. The screw sleeve detection device according to any one of claims 1 to 7, characterized in that: The driving device, the plug-in part and the sensing component correspond one by one to form an active detection group. The active detection group is arranged in multiple groups. The driving parts in the multiple active detection groups are set to have different corresponding set directions during the activity process, so as to correspond to the threaded holes in different directions on the workpiece to be inspected.

12. A battery production line, characterized in that: It comprises a screw sleeve detection device as described in any one of claims 1 to 11.

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