A vibration-type standard parts error-proofing device and system
By installing a vibrating standard parts error-proofing device on the error-proofing work clothes, using a vibrator and wireless signal control, and combining the MES system and tightening tools, the problem of incorrect installation and tightening of standard parts on the automobile assembly line was solved, achieving space savings and labor time optimization, and improving production efficiency and intelligent manufacturing level.
Patent Information
- Application Number
- CN202411042399.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2044-07-31
AI Technical Summary
Standard parts on automobile assembly lines are easily misassembled due to their similar appearance. Existing error-proofing devices take up a lot of space and increase labor costs.
A vibration-type standard parts error-proofing device is used. By setting multiple pockets on the error-proofing work clothes, each pocket is equipped with a vibrator. Wireless signals are used to control the vibrator to vibrate to remind the operator to pick up the correct standard parts. Combined with the MES system and the error-proofing unit of the tightening tool, automatic error prevention and rhythm are achieved.
It reduces the space occupied by the line, reduces the labor cost, increases the rate of standard parts on hand, reduces the incidence of incorrect installation and tightening of standard parts, and improves production efficiency and intelligent manufacturing level.
Smart Images

Figure CN118936810B_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of error prevention in the assembly of standard parts on automobile production lines, and in particular to a vibration-type error prevention device and system for standard parts. Background Art
[0002] Automobile assembly lines use a wide variety of standard parts, and a single workstation on the production site must assemble multiple vehicle models, requiring mixed assembly and tightening of multiple types of standard parts. Identical standard parts are usually placed in TP boxes for easy access by employees, but each workstation needs to assemble standard parts for different vehicle models and models, necessitating multiple TP boxes for differentiation. During production, employees often struggle to distinguish standard parts with the naked eye due to their similar dimensions, which can lead to incorrect selection and installation of the wrong parts.
[0003] Currently, for standard parts on the automotive assembly line, error-proofing racks are used to assemble parts in the order of production, enabling different standard parts boxes to be retracted or illuminated to instruct operators to pick up the correct standard parts. However, the following problems exist:
[0004] (1) To prevent errors in the order in which the parts are placed along the line, larger containers, racks, or even equipment are usually needed to assist in this. This results in a large area occupied by small parts such as standard parts, which is not conducive to the overall planning and placement of materials.
[0005] (2) When picking up different standard parts in a workstation, the operator needs to walk to the corresponding error-proofing rack, container or equipment at the line to pick up the parts each time. This adds a lot of walking time from the vehicle assembly position to the line to pick up the parts, which brings unnecessary cost waste and is not conducive to the realization of hand-on operation. After picking up the parts, it is usually necessary to jump to the next step, such as returning the material box or turning off the indicator light, which all results in a waste of labor time costs. Summary of the Invention
[0006] The embodiment of the present application provides a vibration-type standard parts error-proofing device and system to solve the problem in the related art of using error-proofing material racks according to the production sequence and the order of assembling parts at the workstations to realize the telescopic or lighting mode of different standard parts boxes to instruct the operator to pick up the correct standard parts, resulting in occupying line space and long working hours caused by going back and forth to pick up parts.
[0007] In a first aspect, a vibration-type standard component error-proofing device is provided, comprising:
[0008] Error-proof work clothes, which are provided with multiple pockets, each of which is provided with a vibrator and is used to accommodate different types of standard parts;
[0009] The wireless signal receiving controller is connected to the plurality of vibrators and is used to receive a control signal to control the corresponding vibrators to vibrate.
[0010] In some embodiments, the vibrator is provided with a vibration start / stop switch and a charging port.
[0011] In some embodiments, the receiving pocket is provided with a partition sheet that divides the internal space thereof into two parts, the vibrator is arranged in the lower part, and the upper part is used for placing the standard parts.
[0012] In a second aspect, a vibration-type standard part error-proofing system is provided, comprising:
[0013] Downstream production line execution module, which includes multiple vibration-type standard parts error-proofing devices;
[0014] An upstream server execution module is used to obtain the type and quantity of standard parts that need to be tightened in the target workstation according to the vehicle model queue data and vehicle model configuration information, as well as the vibrator corresponding to each standard part that needs to be tightened;
[0015] The line PC industrial computer is used to control the vibration of the vibrator corresponding to the standard part that needs to be tightened according to the type of standard part that needs to be tightened in the target station according to the assembly sequence when assembling standard parts.
[0016] In some embodiments, the downstream production line execution module further includes a station controller matched with the target station; the station controller is used to obtain the tightening result of the tightening tool on the standard part currently tightened;
[0017] The line PC industrial computer is also used to determine whether the tightening tool has completed the tightening operation based on the tightening result; if not, the vibrator corresponding to the currently tightened standard part is controlled to vibrate through the wireless signal receiving controller; if so, the vibrator corresponding to the currently tightened standard part is controlled to stop vibrating through the wireless signal receiving controller.
[0018] In some embodiments, the workstation controller is provided with an indicator light or a speaker; the workstation controller is used to control the operation of the indicator light or the speaker according to the assembly sequence to remind the operator to take the corresponding tightening tool.
[0019] In some embodiments, the station controller is further connected to a contact switch corresponding to each tightening tool; the contact switch is used to detect whether the corresponding tightening tool is taken for use;
[0020] The line PC industrial computer is also used to control the vibrator corresponding to the matching tightening tool to vibrate when the contact switch is disconnected; and to control the vibrator corresponding to the matching tightening tool to stop vibrating when the contact switch is closed.
[0021] In some embodiments, the upstream server execution module includes a tool tightening error proofing unit and a standard part error proofing unit;
[0022] The tool tightening error-proofing unit is used to obtain the assembly sequence and model of the vehicle to be assembled at the target workstation based on the model queue data; based on the model configuration information, obtain the type and quantity of the required tightening standard parts corresponding to each model in the target workstation, as well as the tightening requirements of each standard part;
[0023] The standard part error-proofing unit is used to associate vibrators according to the rule that one standard part corresponds to one vibrator, so as to obtain a vibrator corresponding to each required tightening standard part sorted in the assembly sequence.
[0024] In some embodiments, the tightening requirement includes a tightening quantity and a set tightening torque;
[0025] The station controller is used to obtain the tightening result of the tightening tool on the currently tightened standard part, specifically including the following steps:
[0026] The station controller is used to determine whether the tightening torque of the currently tightened standard part reaches the set tightening torque; if the tightening torque reaches the set tightening torque, it indicates that the currently tightened standard part is tightened and the tightening times are recorded as one; otherwise, no record is made; if the tightening times reach the tightening quantity, it indicates that the tightening operation of this type of standard part is completed.
[0027] In some embodiments, the vibrator is provided with a vibration start / stop switch and a charging port;
[0028] The line PC industrial computer is also used to control the vibration start and stop switch to be disconnected to suspend the vibration function when an abnormal situation occurs on the production line or at a workstation.
[0029] The beneficial effects of the technical solution provided by this application include:
[0030] An embodiment of the present application provides a vibration-type standard parts error-proofing device and system. Since a plurality of storage pockets are provided on the error-proofing work clothes, a vibrator is set in each storage pocket and is used to accommodate different types of standard parts; a wireless signal receiving controller is connected to the signals of the plurality of vibrators and is used to receive control signals to control the corresponding vibrators to vibrate; through the above settings, different types of standard parts corresponding to different vehicle models in the target process can be placed in the corresponding storage pockets, so that the operator can carry the standard parts while wearing the error-proofing work clothes, avoid occupying the line side space, and at the same time do not need to go to the corresponding error-proofing material rack, container or equipment at the line side to pick up the parts, thereby reducing working hours.
[0031] In addition, when assembling a certain type of standard parts, the vibrator in the corresponding pocket will vibrate, thereby reminding the operator to pick it up and avoid taking it incorrectly; when assembling the next type of standard parts, the vibrator corresponding to the next type of standard parts will vibrate, thereby avoiding incorrect installation and wrong screwing of standard parts, taking into account the rhythm of the production line and reducing the working hours of picking up parts back and forth, thereby truly improving the availability of standard parts. BRIEF DESCRIPTION OF THE DRAWINGS
[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. 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 these drawings without any creative work.
[0033] Figure 1 A schematic diagram of the structure of a vibration-type standard part error-proofing device provided in an embodiment of the present application;
[0034] Figure 2 A schematic diagram of the architecture of a vibration-type standard component error-proofing system provided in an embodiment of the present application;
[0035] Figure 3 This is a diagram of the software and hardware architecture of the vibration-type standard parts error-proofing system and MES system provided in the embodiments of the present application.
[0036] In the picture: 1. Anti-error work clothes; 2. Storage pocket; 3. Vibrator. DETAILED DESCRIPTION
[0037] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0038] It should be understood that:
[0039] For standard parts on the automotive assembly line, error-proofing racks are used to assemble parts in the order of production, allowing different standard parts boxes to be retracted or illuminated to indicate to operators which standard parts to pick up. However, the following problems exist:
[0040] 1. Error prevention for the sequential placement of parts along the line usually requires larger containers, racks, or even equipment to assist in this. This results in a large area occupied by small parts such as standard parts, which is not conducive to the overall planning and placement of materials.
[0041] 2. To pick up different standard parts within the workstation, the operator needs to walk to the corresponding error-proofing rack, container or equipment at the line to pick up the parts each time. This adds a lot of walking time from the vehicle assembly position to the line to pick up the parts, which brings unnecessary cost waste and is not conducive to the realization of hands-on work. After picking up the parts, it is usually necessary to jump to the next step, such as returning the material box or turning off the indicator light, which all results in a waste of labor time costs.
[0042] Therefore, the goal we need to achieve is to assemble and tighten standard parts of multiple models and varieties at each workstation on the assembly line. We need to consider how to avoid incorrect installation and tightening of standard parts. At the same time, we must take into account the rhythm of the production line and reduce the working hours of picking up parts back and forth, so as to truly improve the availability of standard parts.
[0043] Therefore, consider individually selecting standard parts prone to errors at workstations, such as bolts with the same thread specifications and head size but different lengths, colors, or with or without thread sealant, and plan for error prevention needs. Furthermore, consider the operator's convenience in accessing parts and increasing the availability of handy parts. Small standard parts should be carried as much as possible, so that a handful can cover multiple vehicles.
[0044] First, refer to the attached Figure 1 , provides a vibration type standard part error proofing device, which includes:
[0045] The error-proofing work clothes 1 are provided with a plurality of receiving pockets 2, each receiving pocket 2 is provided with a vibrator 3 and is used to receive different types of standard parts;
[0046] The wireless signal receiving controller is connected to the plurality of vibrators 3 and is used to receive control signals to control the vibration of the corresponding vibrators 3. The wireless signal receiving controller transmits signals through the WIF control box.
[0047] Through the above settings, different types of standard parts corresponding to different vehicle models in the target process can be placed in the corresponding receiving pockets 2, so that operators can carry standard parts in error-proofing work clothes to avoid occupying the space at the line edge. At the same time, there is no need to go to the corresponding error-proofing material rack, container or equipment at the line edge to pick up the parts, reducing working hours.
[0048] In addition, when assembling a certain type of standard parts, the vibrator 3 of the corresponding pocket 2 will vibrate, thereby reminding the operator to pick it up and avoiding picking errors; when assembling the next type of standard parts, the vibrator 3 corresponding to the next type of standard parts will vibrate accordingly, thereby avoiding wrong installation and wrong screwing of standard parts. At the same time, the rhythm of the production line must be taken into account and the working hours of picking up parts back and forth must be reduced, so as to truly improve the rate of standard parts on hand.
[0049] Furthermore, in order to facilitate reminders and reduce space occupation, a partition is provided in the accommodating pocket 2 to separate its internal space into two parts, the vibrator 3 is arranged in the lower part, and the upper part is used to place standard parts.
[0050] Furthermore, the vibrator 3 is provided with a vibration start-stop switch and a charging interface; the above realizes the convenience of charging, and the error-proofing work clothes 1 can be planned as one in use and one in backup, and the corresponding vibrator 3 is also one in use and one in backup. When the operator is assembling on the production line, the backup error-proofing work clothes 1 containing the vibrator 3 can be charged online. At the same time, considering the maintenance convenience of the vibrator 3, the vibrator needs to be easy to disassemble and install in the work clothes.
[0051] In addition, if an abnormal situation occurs on the production line or at a workstation, the vibration function needs to be suspended. A vibration start-stop switch can be designed at the error-proofing work station 1. When the vibration switch is turned off, all corresponding vibrators stop working. If the abnormal situation requires the vibration function to be suspended for a long time, manual intervention is required to notify the corresponding operation and maintenance or system management personnel to handle it.
[0052] Four to five storage pockets 2 will be designed on the operator's work clothes. The specific design can be made according to the number and size of the error-proofing standard parts. Different standard parts will be placed in different storage pockets 2. At the same time, a partition will be designed under each storage pocket 2 for installing a vibrator. The vibrator must have charging and wireless signal receiving functions. Each pocket corresponds to a standard part that needs to be error-proofed.
[0053] After one standard part is assembled, how to switch to the next standard part? At this time, you can consider using an electric tightening tool. After tightening one standard part, the system will feedback the completion signal to the upstream server. The system will give the next standard part to be assembled in sequence and transmit the wireless signal to the vibrator 3 in the corresponding pocket 2 through WIF. After receiving the signal, the vibrator vibrates to remind the operator to take the standard part in the corresponding pocket.
[0054] Secondly, in order to further realize automatic error prevention for production rhythm and switch to the next standard part, the following settings are available:
[0055] A vibration-type standard parts error-proofing system is proposed, which includes:
[0056] Downstream production line execution module, which includes multiple vibration-type standard parts error-proofing devices;
[0057] An upstream server execution module is used to obtain the type and quantity of standard parts that need to be tightened in the target workstation according to the vehicle model queue data and vehicle model configuration information, as well as the vibrator 3 corresponding to each standard part that needs to be tightened;
[0058] The line PC industrial computer is used to control the vibration of the vibrator 3 corresponding to the standard part that needs to be tightened according to the type of the standard part that needs to be tightened in the target station according to the assembly sequence when assembling the standard part.
[0059] The above realizes switching the corresponding vibrator 3 according to the assembly sequence, realizes automatic switching, and issues reminders.
[0060] For the above considerations, an electric tightening tool is used to tighten a standard part. After tightening a standard part, a completion signal is fed back to the upstream server. The system then gives the next standard part to be assembled in sequence. This can be understood as:
[0061] Since the standard part retrieval error prevention function is added based on the existing MES system and some functions of the tightening error prevention system, it is necessary to obtain the current vehicle model installation process at the workstation and the standard part information corresponding to each work step. If different standard parts are used in different work steps, it is necessary to wait until the current standard part is assembled before jumping to the next standard part. Based on the previous analysis, the tightening of the standard part can be completed by the tightening tool to provide feedback on whether the current standard part is assembled. Therefore, the standard part retrieval error prevention function needs to be linked to the tool's tightening system.
[0062] In some preferred embodiments, the downstream production line execution module further includes a station controller matched with the target station; the station controller is used to obtain the tightening result of the tightening tool on the currently tightened standard part;
[0063] The line PC industrial computer is also used to determine whether the tightening tool has completed the tightening operation based on the tightening result; if not, the vibrator 3 corresponding to the currently tightened standard part is controlled to vibrate through the wireless signal receiving controller; if so, the vibrator 3 corresponding to the currently tightened standard part is controlled to stop vibrating through the wireless signal receiving controller.
[0064] Among them, the work station controller is provided with an indicator light or a speaker; the work station controller is used to control the operation of the indicator light or the speaker according to the assembly sequence to remind the operator to take the corresponding tightening tool.
[0065] The upstream server execution module includes a tool tightening error prevention unit and a standard part error prevention unit; the tool tightening error prevention unit is used to obtain the assembly sequence and model of the vehicles required to be assembled at the target workstation based on the model queue data; based on the model configuration information, the type and quantity of the required tightening standard parts corresponding to each model in the target workstation, as well as the tightening requirements of each standard part, are obtained; the standard part error prevention unit is used to associate the vibrator 3 according to the rule that one standard part corresponds to one vibrator 3, so as to obtain the vibrator 3 corresponding to each required tightening standard part sorted in the assembly order.
[0066] The tightening requirements include the tightening quantity and the set tightening torque; the station controller is used to obtain the tightening results of the tightening tool on the standard part currently being tightened, which specifically includes the following steps: the station controller is used to determine whether the tightening torque of the standard part currently being tightened reaches the set tightening torque; if the tightening torque reaches the set tightening torque, it indicates that the standard part currently being tightened is tightened, and the tightening times are recorded as once; otherwise, it is not recorded; if the tightening times reach the tightening quantity, it means that the tightening operation of this type of standard part is completed.
[0067] The above demonstrates how to accurately pick up the tightening tool and how to feed back the tightening signal to the corresponding vibrator 3, and adapts to different vehicle models and assembly sequences. Therefore, if the standard workwear vibration error prevention function is to be realized, it requires support from upstream and downstream related systems. The specific construction of the reference system architecture diagram is shown in the attached figure. Figure 2 and attached Figure 3 .
[0068] A specific embodiment is given below to illustrate:
[0069] The current vehicle model and corresponding BOM table information are obtained from the MES system. The tool tightening error prevention unit identifies the parts assembled at the workstation and the related standard parts that need to be error-proofed. According to the vehicle model configuration information, vehicle model queue data, and assembly sequence, the information of the standard parts that need to be error-proofed at the current workstation is sent to the PC industrial control computers and standard parts error prevention units on each line of the production line. The standard parts error prevention unit is used to number the corresponding standard parts that need to be error-proofed one by one and correspond one to one with the vibrators in the operator's special error-proofing work clothes at the workstation.
[0070] Among them, the specific process of the tool tightening error prevention unit is: the MES system sends the vehicle model data → the server of the tool tightening error prevention unit obtains the vehicle model queue data and stores it → parses the corresponding line PC and tightening station, tightening controller (including number), tightening controller execution sequence, tightening gun (including program JOB number) according to the vehicle model configuration information → and sends it to the corresponding line PC industrial computer of each line in sequence.
[0071] The specific process of the standard parts error-proofing unit is as follows: the MES system sends vehicle model data → the standard parts error-proofing unit obtains the vehicle model queue data and stores it → parses the corresponding line PC and the standard parts that need to be assembled at the corresponding workstation based on the vehicle model configuration information → matches the standard parts that need error-proofing to the vibrator of the error-proofing work uniform at the workstation → sends them to each line PC industrial computer in sequence.
[0072] The upstream server execution module sends tightening instructions for the workstation corresponding to the current vehicle model to each PC on the production line. The production line PC controls the tightening tool at the corresponding workstation to tighten the corresponding standard parts. The tightening tool can use either wired or wireless tightening methods. The standard part error-proofing vibrator uses wireless signal transmission and communicates with the production line PCs via wireless Wi-Fi.
[0073] The line PC industrial computer obtains the corresponding vibrator number and server tightening instruction information on the error-proofing uniform of each workstation from the upstream server execution module according to the assembly process;
[0074] The line PC receives the tightening instruction information from the server → confirms the tightening station and issues the tightening command according to each station → the controllers of each station receive the tightening command in sequence → the operator takes the corresponding tightening tool → the contact switch feeds back the IO signal of the tool being taken to the line PC;
[0075] The PC in the line receives the IO signal that the tool has been taken and sends the corresponding vibrator number information of the component standard part in sequence → triggers the corresponding vibrator on the error-proofing work clothes to vibrate → the operator picks up the standard part according to the vibration reminder and starts tightening;
[0076] The line body PC industrial computer controls the tightening gun of this station to complete the tightening according to the sequence, tightening points, and set tightening torque angle values. The tightening result data is collected, uploaded, and stored in the line body PC. If there is an abnormality, the three-color light of the tightening controller at the station will turn red or the speaker will alarm until the tightening is completed. The OK result is transmitted to the line body PC.
[0077] For example, if the component being installed at the current workstation requires four different bolts to be assembled and tightened, the error-proofing system will sequentially issue the corresponding standard parts. This triggers the corresponding standard part's vibrator to vibrate in that order. When vibration 1 occurs, the operator retrieves standard part 1 from their pocket and tightens it with their tool. The tool then receives the tightening instruction for the corresponding standard part from the production line PC and completes the tightening of standard part 1. If standard part 1 requires four bolts to be tightened, the error-proofing system determines the required number. Once tightened, a "OK" result is fed back to the production line PC, which stops the corresponding vibrator and uploads the tightening result to the system server. The server then issues the next standard part instruction for that workstation, which is controlled by the production line PC. This triggers the corresponding vibrator 2 on the operator's error-proofing uniform at that workstation to vibrate. The operator, alerted by vibrator 2 in their uniform pocket, retrieves the corresponding standard part and completes the tightening, repeating the cycle.
[0078] In some preferred embodiments, in order to optimize the invalid vibration caused by the operator performing other non-standard parts tightening operations, the following settings are provided:
[0079] The station controller is also connected to a contact switch corresponding to each tightening tool; the contact switch is used to detect whether the corresponding tightening tool is taken for use;
[0080] The line PC industrial computer is also used to control the vibrator 3 corresponding to the matching tightening tool to vibrate when the contact switch is disconnected; and to control the vibrator 3 corresponding to the matching tightening tool to stop vibrating when the contact switch is closed.
[0081] A contact switch is added to the tightening tool placement area. When the tool leaves its placement area, indicating that the standard part needs to be tightened, the contact switch opens, sending an IO signal indicating that the tool has been removed to the production line PC. The production line PC receives the IO signal and issues a removal instruction. The corresponding vibrator 3 in the error-proofing work uniform 1 begins to vibrate, and the operator follows the prompt to remove the standard part from the corresponding pocket 2. This solves the cost and power consumption issues caused by ineffective vibration.
[0082] Through the above settings, the problems of incorrect installation, incorrect tightening and even missing installation of standard parts that often occur on the production line are effectively solved; the function of improving the on-hand rate of standard parts is taken into account. Compared with the traditional error-proofing method, the time for picking up standard parts back and forth is shortened and the production and manufacturing costs are reduced, while improving employee satisfaction; the degree of intelligence and flexibility is high. The standard parts error-proofing technology is fully automated, without additional auxiliary operations such as manual turning of lights or jumping to the next step, which reduces labor costs and greatly improves the level of intelligent manufacturing; compared with the existing standard parts error-proofing solution, it optimizes the area cost waste caused by adding error-proofing devices on the line side, indirectly reduces investment costs and improves the working environment and space.
[0083] Here is a specific practical application case
[0084] The final assembly line produces a mix of models. For example, the interior line stations have a large number of interior and exterior trims and electrical components, as well as a wide variety of standard parts. Standard parts with the same thread vary in length, including Dacromet and ordinary galvanized standard parts, and some are bolts with sealants. If the wrong assembly occurs, it can still be assembled, making it difficult to detect on-site. If the problem is discovered during subsequent quality inspections, it will lead to a large number of reworks and even production line shutdowns, resulting in quality issues and wasted manufacturing costs. Some standard parts that are misassembled are not discovered in time at the factory and are directly released to the market. When quality issues arise later, they lead to user complaints, affecting after-sales service and even future sales.
[0085] Efforts to prevent errors in standard parts have been underway since the product phase. For example, standard parts at the same workstation are standardized as much as possible. However, due to the specific quality requirements of certain vehicle models and parts, as well as R&D cost controls, 100% standardization is not always possible. Some workstations still produce a mix of standard parts. Therefore, manufacturers must consider how to prevent the misplacement and misassembly of standard parts. Furthermore, they must also consider improving production efficiency, increasing the availability of standard parts, reducing unnecessary auxiliary operations, and continuously advancing intelligent manufacturing.
[0086] To solve this problem, we utilized the existing MES system and tightening error proofing system, modified the parts error proofing system to interface with the tightening error proofing system, and purchased several hardware items, including special work clothes for the workstations that require error proofing, wireless rechargeable vibrators, chargers, control switches, wireless Wi-Fi, contact switches for electric tightening tools, and IO signal cables. At the same time, we implemented a system software upgrade and transformation, realizing the error proofing function of placing error proofing standard parts in the cloth pockets of the operator's work clothes, and using vibration reminders to instruct the operator to pick up the correct standard parts. The specific software and hardware architecture diagram can be found in the attached document. Figure 3 .
[0087] By implementing this standard parts error-proofing technology, the problem of incorrectly installed standard parts preventing them from being released has been effectively resolved. This has also increased the availability of standard parts, significantly reducing the number of times operators have to return to the line to retrieve standard parts. The improvement has significantly reduced the rate of defective standard parts being released due to incorrect or missing installations, from 1% to 0.02%. Furthermore, by placing standard parts within work uniforms for nearby vibration error-proofing, the operator's time spent returning to the line to retrieve standard parts has been significantly reduced, saving time and reducing investment costs.
[0088] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.
[0089] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.
[0090] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.
Claims
1. A vibration type standard parts error proofing device, characterized in that: It includes: Error-proof work clothes (1) are provided with a plurality of receiving pockets (2), each receiving pocket (2) is provided with a vibrator (3) and is used to receive different types of standard parts; A wireless signal receiving controller is connected to the plurality of vibrators (3) for signal reception and is used to receive a control signal to control the corresponding vibrator (3) to vibrate; when a certain type of standard part is assembled, the vibrator (3) of the corresponding receiving pocket (2) will vibrate, thereby reminding the operator to take it and avoiding taking errors.
2. The vibration-type standard component error-proofing device according to claim 1, characterized in that: The vibrator (3) is provided with a vibration start / stop switch and a charging interface.
3. The vibration-type standard component error-proofing device according to claim 1, wherein: The receiving pocket (2) is provided with a partition sheet for dividing its internal space into upper and lower parts. The vibrator (3) is arranged in the lower part, and the upper part is used for placing standard parts.
4. A vibration type standard parts error proofing system, characterized in that: It includes: A downstream production line execution module, comprising a plurality of vibration-type standard part error-proofing devices according to any one of claims 1 to 3; An upstream server execution module is used to obtain the type and quantity of standard parts that need to be tightened in the target workstation according to the vehicle model queue data and vehicle model configuration information, and the vibrator corresponding to each standard part that needs to be tightened (3); The line PC industrial control computer is used to control the vibration of the vibrator (3) corresponding to the standard part that needs to be tightened according to the type of the standard part that needs to be tightened in the target station according to the assembly sequence when assembling the standard part.
5. The vibration-type standard component error-proofing system according to claim 4, wherein: The downstream production line execution module further includes a station controller that matches the target station; the station controller is used to obtain the tightening result of the tightening tool on the currently tightened standard part; The line PC industrial computer is also used to judge whether the tightening tool has completed the tightening operation based on the tightening result; if not, the vibrator (3) corresponding to the currently tightened standard part is controlled to vibrate through the wireless signal receiving controller; if so, the vibrator (3) corresponding to the currently tightened standard part is controlled to stop vibrating through the wireless signal receiving controller.
6. The vibration-type standard component error-proofing system according to claim 5, wherein: The station controller is provided with an indicator light or a speaker; the station controller is used to control the operation of the indicator light or the speaker according to the assembly sequence to remind the operator to take the corresponding tightening tool.
7. The vibration-type standard component error-proofing system according to claim 5, wherein: The station controller is also connected to a contact switch corresponding to each tightening tool; the contact switch is used to detect whether the corresponding tightening tool is taken for use; The line PC industrial control computer is also used to control the vibrator (3) corresponding to the matching tightening tool to vibrate when the contact switch is disconnected; and to control the vibrator (3) corresponding to the matching tightening tool to stop vibrating when the contact switch is closed.
8. The vibration-type standard component error-proofing system according to claim 5, wherein: The upstream server execution module includes a tool tightening error proofing unit and a standard part error proofing unit; The tool tightening error-proofing unit is used to obtain the assembly sequence and model of the vehicle to be assembled at the target workstation based on the model queue data; based on the model configuration information, obtain the type and quantity of the required tightening standard parts corresponding to each model in the target workstation, as well as the tightening requirements of each standard part; The standard part error-proofing unit is used to associate the vibrators (3) according to the rule that one standard part corresponds to one vibrator (3), so as to obtain a vibrator (3) corresponding to each required tightening standard part sorted in an assembly order.
9. The vibration-type standard component error-proofing system according to claim 8, wherein: The tightening requirements include tightening quantity and set tightening torque; The station controller is used to obtain the tightening result of the tightening tool on the currently tightened standard part, specifically including the following steps: The station controller is used to determine whether the tightening torque of the currently tightened standard part reaches the set tightening torque; if the tightening torque reaches the set tightening torque, it indicates that the currently tightened standard part is tightened and the tightening times are recorded as one; otherwise, no record is made; if the tightening times reach the tightening quantity, it indicates that the tightening operation of this type of standard part is completed.
10. The vibration-type standard component error-proofing system according to claim 4, wherein: The vibrator (3) is provided with a vibration start / stop switch and a charging interface; The line PC industrial computer is also used to control the vibration start and stop switch to be disconnected to suspend the vibration function when an abnormal situation occurs on the production line or at a workstation.
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