Positioning, identifying and tightening system

Abstract

The utility model provides a positioning, identifying and tightening system, which comprises a frame, a positioning device, a tightening device, a positioning device and a tightening device, wherein the top of the frame is provided with a visual identification device; the conveying device is used for conveying the battery, and at least three first positioning labels are arranged in the area, located on the periphery of the battery, of the conveying device; the tightening tool is provided with a second positioning label; and the visual identification device is used for identifying the positions of the first positioning label and the second positioning label, is in communication connection with the tightening tool and is used for controlling the tightening tool. According to the utility model, the actual position of the to-be-tightened bolt on the battery is identified through the first positioning tag, the actual position of the tightening tool is identified through the second positioning tag, and when the visual identification device identifies that the tightening tool carrying the second positioning tag moves to be consistent with the position of the to-be-tightened bolt on the battery, the bolt is prevented from being screwed mistakenly.

Description

TECHNICAL FIELD

[0001] The utility model belongs to vehicle assembly technical field, concretely relates to a positioning and identification tightening system. BACKGROUND

[0002] The bolt tightening is a key step in the assembly and production process of the battery of the automobile, which ensures the stability and safety of the battery. Since the number of bolts is large, the frequency of bolt tightening is high, the workload is large, and the repeatability is strong, so the wrong bolt tightening is prone to occur by manual operation. UTILITY MODEL CONTENTS

[0003] The utility model provides a positioning and identification tightening system to solve the problem of wrong bolt tightening in the prior art.

[0004] In order to solve the above technical problems, the utility model provides a positioning and identification tightening system, the positioning and identification tightening system includes:

[0005] The frame is provided with a visual identification device on the top thereof;

[0006] The conveying device is used for conveying the battery, and the first positioning label is arranged on the region of the conveying device located at the outer periphery of the battery, and the first positioning label is at least three;

[0007] The tightening tool is provided with a second positioning label;

[0008] The visual identification device is used for identifying the positions of the first positioning label and the second positioning label, and the visual identification device is in communication connection with the tightening tool and is used for controlling the tightening tool.

[0009] In an embodiment of the utility model, the first positioning label is four to eight.

[0010] In an embodiment of the utility model, the first positioning label and the second positioning label are both infrared reflective labels.

[0011] In an embodiment of the utility model, the tightening tool includes a tightening gun, and the second positioning label is arranged at the gun head of the tightening gun.

[0012] In an embodiment of the utility model, the conveying device includes a battery tray, the battery tray includes a battery accommodating portion, and the first positioning label is arranged at the outer periphery of the battery accommodating portion.

[0013] In an embodiment of the utility model, the conveying device includes an automatic guided vehicle and a battery tray, the battery tray is used for accommodating the battery, and the first positioning label is arranged on the automatic guided vehicle.

[0014] In an embodiment of the present application, the visual identification device comprises an image acquisition device and a first alarm device in communication connection with the image acquisition device.

[0015] In an embodiment of the present application, the tightening tool comprises a tightening gun and a second alarm device in connection with the tightening gun.

[0016] In an embodiment of the present application, the positioning and identification tightening system comprises a tightening data storage device, which is connected with the tightening tool and the visual identification device.

[0017] In an embodiment of the present application, the positioning and identification tightening system comprises a display device, which is connected with the visual identification device.

[0018] The positioning and identification tightening system provided by the present application can identify the positions of the first positioning label and the second positioning label in real time through the visual identification device, identify the actual position of the bolt to be tightened on the battery through the first positioning label, identify the actual position of the tightening tool through the second positioning label, control the tightening tool to work when the visual identification device identifies that the tightening tool carrying the second positioning label moves to the position consistent with the bolt to be tightened on the battery, and the tightening tool can perform the bolt tightening operation. Conversely, if the tightening tool carrying the second positioning label is not consistent with the position of the bolt to be tightened on the battery, the tightening tool will not perform the tightening operation if the tightening tool is operated at this time, and thus the wrong bolt is avoided.

[0019] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, the content of the specification can be implemented, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic block diagram of the positioning and identification tightening system of an embodiment of the present application.

[0021] Figure 2 It is a structural schematic diagram of the positioning and identification tightening system of an embodiment of the present application.

[0022] In the figure: 1, conveying device; 11, first positioning label; 2, tightening tool; 21, second positioning label; 3, visual identification device; S, conical region; 4, frame; 5, battery; 6, display device. DETAILED DESCRIPTION

[0023] In order to further illustrate the technical means and effects taken by the utility model to achieve the predetermined utility model purposes, the following will be described in detail in combination with the drawings and preferred embodiments, and the specific embodiments and effects of the utility model.

[0024] In this description, for the purpose of explanation, various systems, structures and devices are schematically depicted in the drawings and are not described with all of their features, such as well-known functions or structures, in detail to avoid obscuring the application with unnecessary detail. It should be understood, of course, that in any actual application, numerous implementation decisions can be made to achieve developer's or user's specific goals, such as compliance with system-related and business-related constraints, which will vary from one implementation to another. Moreover, it should be understood that such implementation decisions can have developmental effort devoted to them, but these decisions can merely be a routine part of the software development efforts, with benefits far outweighing the costs to developers' and users' efforts, without need for undue experimentation.

[0025] Unless the content requires, throughout the description and claims of this specification, the word "comprise", and variations such as "comprises" or "comprising", will be understood to mean the term "include", "includes" or "including".

[0026] Throughout the description of this specification, reference to the phrase "one embodiment" means that a specific feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. Therefore, the phrase "in one embodiment" appearing in different places throughout the specification is not necessarily all referring to the same embodiment. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0027] In the description of the embodiments of the application, the 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.

[0028] Figure 1 A schematic block diagram of a positioning and identification tightening system according to an embodiment of the utility model, Figure 2 A structural schematic diagram of a tightening tool according to an embodiment of the utility model. According to one aspect of the utility model, a positioning and identification tightening system is provided, such as Figure 1 and Figure 2As shown, the positioning and identifying tightening system comprises a frame 4, a visual identification device 3 arranged on the top of the frame 4, a conveying device 1 for conveying a battery 5, the conveying device 1 being provided with first positioning labels 11 on the region outside the periphery of the battery 5, the first positioning labels 11 being at least three in number, a tightening tool 2 provided with second positioning labels 21, and the visual identification device 3 for identifying the positions of the first positioning labels 11 and the second positioning labels 21, the visual identification device 3 being in communication connection with the tightening tool 2 for controlling the tightening tool 2.

[0029] The visual identification device 3 can be arranged at any position on the frame 4 and can collect the first positioning labels 11 and the second positioning labels 21.

[0030] In an embodiment of the utility model, the visual identification device 3 is arranged at the center of the frame 4, the visual identification device 3 covers the widest area, and the accuracy of the collected information is also relatively high.

[0031] The visual identification device 3 is preset with the positional relationship between the first positioning labels 11 and the battery 5, and is also preset with the positions of the bolts to be tightened on the battery 5.

[0032] As shown in Figure 1 and Figure 2 The conical region S is the region that can be identified by the visual identification device 3, and the conveying device 1 is located in the conical region S that can be identified by the visual identification device. The first positioning labels 11 are used to reflect the actual position of the conveying device 1, the visual identification device 3 is preset with the positional relationship between the first positioning labels 11 and the battery 5, and is also preset with the positions of the bolts to be tightened on the battery 5. When the visual identification device 3 identifies the actual position of the first positioning labels 11, the actual position of the battery 5 and the actual positions of the bolts on the battery 5 can be calculated.

[0033] Specifically, the battery 5 is placed on the conveying device 1, the relative position between the battery 5 and the conveying device 1 is fixed (or the error is negligible), the relative position between the bolts on the battery 5 and the battery 5 is fixed, therefore, the actual position of the battery 5 and the actual positions of the bolts on the battery 5 can be calculated through the relative positional relationship between the first positioning labels 11 and the battery 5, therefore, the first positioning labels 11 can reflect the actual positions of the bolts to be tightened on the battery 5.

[0034] The second positioning labels 21 are used to reflect the actual position of the tightening tool 2. When the tightening tool 2 moves, the visual identification device 3 can capture the position of the tightening tool 2 in real time through the second positioning labels 21.

[0035] The visual recognition device 3 matches and interacts with the first positioning label 11 and the second positioning label 21, the visual recognition device 3 can recognize the positions of the first positioning label 11 and the second positioning label 21, when the conveying device 1 conveys the battery 5 to below the frame 4, the visual recognition device 3 interacts with the first positioning label 11 and the second positioning label 21, and the positions of the first positioning label 11 and the second positioning label 21 are collected.

[0036] The battery 5 is placed on the conveying device 1, the position of the battery 5 placed on the conveying device 1 is fixed (the error is negligible) each time, the position of the conveying device 1 stopped at the bolt tightening station may be deviated (for example, inclined by a certain angle) each time, the first positioning label 11 can accurately recognize the position of the conveying device 1, and the accuracy of the tightening work is not affected due to the deviation of the conveying device 1, thereby effectively helping the operator to perform the bolt tightening work. Specifically, when the visual recognition device 3 recognizes the first positioning label 11, the actual position of the bolt on the battery 5 can be determined through the first positioning label 11, and the visual recognition device 3 controls the tightening work of the bolt according to the actual position.

[0037] The positioning and recognition tightening system provided by the utility model can realize real-time recognition of the positions of the first positioning label 11 and the second positioning label 21 through the visual recognition device 3, the actual position of the bolt to be tightened on the battery 5 is recognized through the first positioning label 11, the actual position of the tightening tool 2 is recognized through the second positioning label 21, when the visual recognition device 3 recognizes that the tightening tool 2 carrying the second positioning label 21 moves to the position consistent with the bolt to be tightened on the battery 5, the visual recognition device 3 controls the tightening tool 2 to work, and the tightening tool can perform the bolt tightening operation. Conversely, if the tightening tool 2 carrying the second positioning label 21 is inconsistent with the position of the bolt to be tightened on the battery 5, the tightening tool will not perform the tightening operation if the tightening tool 2 is operated at this time, and therefore, the wrong bolt is avoided.

[0038] In addition, since the number of bolts to be tightened on the battery 5 is large, in order to ensure the performance of the battery 5, the tightening sequence of the bolts has certain requirements, for example, if the bolt tightening operation is not performed in the required sequence, the remaining bolts may not be tightened (due to certain objective machining errors), or the tightening quality is poor. Therefore, the visual recognition device 3 is provided with a preset tightening sequence of the bolts, when the tightening tool 2 performs the bolt tightening operation according to the preset sequence, the visual recognition device 3 controls the tightening tool 2 to work normally, and when the tightening tool 2 does not perform the bolt tightening operation according to the preset sequence, the visual recognition device 3 controls the bolt to not perform the tightening operation. That is, the visual recognition device 3 can judge whether the tightening tool is currently at the correct bolt position in real time, and the tightening tool 2 cannot be started if not.

[0039] The number of the first positioning labels 11 can be set as required, and in other embodiments of the utility model, the first positioning labels 11 are four to eight.

[0040] In an embodiment of the utility model, as shown in Figure 1 The number of the first positioning labels 11 is four, wherein three first positioning labels 11 can determine the actual position of the bolt on the battery 5, and the other first positioning label 11 can be used to correct the actual position of the bolt on the battery 5.

[0041] The plurality of first positioning labels 11 define an identification setting interval, and the working interval of the operator (i.e. the identification setting interval) and the information of the bolt that needs to be tightened in the identification setting interval can be set in advance. The second positioning label 21 on the tightening tool 2 plays a role in tracking the tightening tool 2, helping the operator to tighten the bolt on the correct bolt, prompting the operator whether to work in the set interval and whether to tighten the bolt correctly.

[0042] The teaching of accurate positioning of the conveying device 1 provided with the first positioning label 11 and the tightening tool 2 provided with the second positioning label 21 defines the information of the bolt that needs to be tightened in the identification setting interval determined by the positioning label, such as the number information, position information and torque information of the bolt. Through the teaching operation, the bolt tightening can be more accurately performed. When the teaching operation is performed, the information of the bolt that needs to be tightened in the current process can be defined, such as the position information, torque information and number information of the bolt. The embodiment can send the information of the bolt that needs to be tightened to the visual recognition device 3 through the teaching operation, so as to realize the external setting of the tightening information of the bolt. Through the teaching operation, the accurate position information of the bolt can be more effectively obtained.

[0043] The first positioning label 11 and the second positioning label 21 can adopt various structures capable of realizing the positioning function, as long as they can be matched with the visual recognition device 3 and accurately recognized by the visual recognition device 3. The first positioning label 11 and the second positioning label 21 can be the same label or different labels, as long as they can interact with the visual recognition device 3, so that the visual recognition device 3 can determine the positions of the first positioning label 11 and the second positioning label 21.

[0044] In an embodiment of the utility model, the first positioning label 11 and the second positioning label 21 are both infrared reflective labels. The infrared reflective label realizes positioning and tracking by reflecting infrared light, and the visual recognition device 3 can capture the infrared light reflected by the infrared reflective label to determine the position of the infrared reflective label, so that the recognition accuracy is high. Another significant advantage of the infrared reflective label is strong real-time performance. When the infrared light irradiates on the label, the label will immediately reflect the light signal, and these signals are captured and decoded by the visual recognition device 3, so that real-time recognition and tracking are realized.

[0045] In an embodiment of the present application, the tightening tool 2 comprises a tightening gun, and the second positioning label 21 is arranged at the gun head of the tightening gun. The gun head is used to align with the bolt to be tightened on the battery 5. Arranging the second positioning label 21 at the gun head of the tightening gun can more accurately determine whether the gun head of the tightening gun is at the correct bolt position. Arranging the second positioning label 21 at the gun head has high positioning accuracy.

[0046] In an embodiment of the present application, the conveying device 1 comprises a battery 5 tray, and the battery 5 tray comprises a battery accommodating portion, and the first positioning label 11 is arranged at the outer periphery of the battery accommodating portion. In this embodiment, the first positioning label 11 is arranged at the outer periphery of the battery accommodating portion, so that the first positioning label 11 is relatively closer to the battery 5, and the positioning effect on the battery 5 is better.

[0047] The closer the first positioning label 11 is arranged to the battery 5, the higher the positioning accuracy is.

[0048] In an embodiment of the present application, the conveying device 1 comprises an automated guided vehicle and a battery tray, the battery tray is used to accommodate the battery 5, and the first positioning label 11 is arranged on the automated guided vehicle. The automated guided vehicle (Automated Guided Vehicle, AGV for short) is used to convey materials in the battery 5 assembly process. The first positioning label 11 can also be arranged on the automated guided vehicle.

[0049] In an embodiment of the present application, the visual identification device 3 comprises an image acquisition device and a first alarm device in communication connection with the image acquisition device. When the position of the second positioning label 21 acquired by the image acquisition device in the visual identification device 3 is inconsistent with the position of the bolt identified according to the first positioning label 11, the bolt is controlled to be unable to perform the tightening operation, and the first alarm device is controlled to alarm, thereby prompting the operator that the current tightening position is incorrect.

[0050] The first alarm device can be a sound alarm, such as a buzzer, or a photoelectric alarm, such as a light flashing device, or other suitable devices, which are not limited in the present application.

[0051] The image acquisition device preferably adopts a high-definition camera or a high-definition camera.

[0052] In an embodiment of the present application, the tightening tool 2 comprises a tightening gun and a second alarm device connected with the tightening gun.

[0053] When the position of the second positioning label 21 collected by the image collection device in the visual recognition device 3 is inconsistent with the position of the bolt identified according to the first positioning label 11, the control bolt cannot perform the tightening operation, and the second alarm device is controlled to alarm, thereby prompting the operator that the current tightening position is incorrect.

[0054] The second alarm device can be a sound alarm, such as a buzzer, or a photoelectric alarm, such as a light flashing device, or other suitable devices, and the utility model is not limited thereto.

[0055] In an embodiment of the utility model, the positioning and identification tightening system comprises a tightening data storage device, which is connected with the tightening tool 2 and the visual recognition device 3. The tightening data storage device is used to record data information in the tightening process, such as the position information and torque information of the bolt. The tightening information of the bolt can be uploaded as required, and the tightening result data is uploaded and stored, recorded to the archiving system, so as to trace the subsequent problems and trace the tightening information of the specific bolt.

[0056] In an embodiment of the utility model, the positioning and identification tightening system comprises a display device 6, which is connected with the visual recognition device 3.

[0057] The display device 6 is used to display the position of the bolt to be tightened in the bolt tightening process, prompting the operator to tighten the bolt at the correct position.

[0058] It still needs to be reminded that the present application can include any feature or feature combination or its generalization implicitly or explicitly disclosed herein, and is not limited to any limited range listed above. Any element, feature and / or structure arrangement described herein can be combined in any suitable manner.

[0059] The above is only the preferred embodiment of the utility model, and does not limit the utility model in any form, although the utility model has been disclosed as above with the preferred embodiment, however, it is not used to limit the utility model, any skilled person in the art can make some changes or modifications of equivalent embodiments with the disclosed technical content without departing from the technical scheme range of the utility model, as long as it does not depart from the technical scheme of the utility model, any simple modification, equivalent change and modification of the above embodiment according to the technical essence of the utility model, still belongs to the range of the technical scheme of the utility model.

Claims

1. A positioning and identification tightening system, characterized by, The battery pack includes: a frame, a top of the frame is provided with a visual identification device; a conveying device, the conveying device is used for conveying the battery, and a region on the conveying device and located at an outer periphery of the battery is provided with a first positioning label, and the first positioning label is at least three; a tightening tool, the tightening tool is provided with a second positioning label; the visual identification device is used for identifying positions of the first positioning label and the second positioning label, the visual identification device is in communication connection with the tightening tool, and is used for controlling the tightening tool.

2. The positioning and identification tightening system according to claim 1, characterized in that, The first positioning label is four to eight.

3. The positioning and identification tightening system according to claim 1, characterized in that, The first positioning label and the second positioning label are both infrared reflective labels.

4. The positioning and identification tightening system according to claim 1, characterized in that, The tightening tool includes a tightening gun, and the second positioning label is arranged at a gun head of the tightening gun.

5. The positioning and identification tightening system according to any one of claims 1-4, characterized in that, The conveying device includes a battery tray, the battery tray includes a battery accommodating portion, and the first positioning label is arranged at an outer periphery of the battery accommodating portion.

6. The positioning and identification tightening system according to any one of claims 1-4, characterized in that, The conveying device includes an automatic guided vehicle and a battery tray, the battery tray is used for accommodating the battery, and the first positioning label is arranged on the automatic guided vehicle.

7. The positioning and identification tightening system according to any one of claims 1-4, characterized in that, The visual identification device includes an image acquisition device and a first alarm device in communication connection with the image acquisition device.

8. The positioning and identification tightening system according to any one of claims 1-4, characterized in that, The tightening tool includes a tightening gun and a second alarm device connected with the tightening gun.

9. The positioning and identification tightening system according to any one of claims 1-4, characterized in that, The battery pack includes a tightening data storage device connected with the tightening tool and the visual identification device.

10. The positioning and identification tightening system according to any one of claims 1-4, characterized in that, The battery pack includes a display device connected with the visual identification device.

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