Operation method of multi-station clamp automatic riveting process system

Abstract

The invention relates to the technical field of riveting equipment, in particular to an operation method of a multi-station clamp automatic riveting process system.The operation method comprises the first step, the second step and the third step, the first step comprises a feeding preliminary assembling stage, the second step comprises a workpiece riveting stage, and the third step comprises a workpiece riveting stage; the step 3 comprises a feeding initial assembling stage, a workpiece riveting stage and a ruler handle and lower frame block assembling stage, the workpiece riveting stage is divided into a workpiece forward riveting stage and a workpiece reverse riveting stage, the step 3 comprises a ruler handle and lower frame block assembling stage, and comprehensive automatic management of the riveting process is achieved by designing a plurality of stations such as the feeding initial assembling stage, the workpiece riveting stage and the ruler handle and lower frame block assembling stage. And meanwhile, each stage is provided with an accurate detection and control means, so that the consistency and the stability of riveting quality are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of riveting equipment, and in particular to an operating method of a multi-station fixture automated riveting process system. Background Art

[0002] In the modern machinery manufacturing industry, automated production lines have become a key means to improve production efficiency and product quality. Especially in the field of metal processing, riveting technology is an important method for connecting metal parts, and its degree of automation directly affects the efficiency and cost of the entire production line. However, traditional riveting technology often relies on manual operation, which is not only inefficient, but also difficult to ensure the consistency and stability of riveting quality.

[0003] With the advancement of science and technology and the development of automation technology, automated riveting process systems have gradually emerged. These systems achieve precise control and automated management of the riveting process by integrating multiple technologies such as mechanics, electronics, sensors and control. However, the existing automated riveting process systems still have some shortcomings.

[0004] First, many systems still use a single station design, which limits the flexibility and adaptability of the production line. In the actual production process, it is often necessary to process workpieces of different types and specifications, and the single station design is often difficult to meet such diverse needs.

[0005] Secondly, the detection and control methods of some automated riveting systems are relatively simple, and cannot achieve comprehensive monitoring and precise control of the riveting process, which may lead to unstable riveting quality and even cause safety hazards.

[0006] In addition, existing automated riveting systems often lack a complete fault detection and alarm mechanism. Once a system fails or anomalies occur, manual troubleshooting and repair are often required, which not only affects the continuous operation of the production line, but also increases maintenance costs and time.

[0007] In view of the above problems, the present invention proposes an operation method of a multi-station fixture automated riveting process system. Summary of the invention

[0008] In order to solve some problems existing in the above-mentioned prior art, the present invention provides an operation method of a multi-station fixture automatic riveting process system, which realizes comprehensive automatic management of the riveting process by designing multiple stations such as the initial assembly stage of feeding, the riveting stage of workpieces (including forward riveting of workpieces and reverse riveting of workpieces), and the assembly stage of ruler handles and lower frame blocks. At the same time, each stage is equipped with precise detection and control means to ensure the consistency and stability of the riveting quality. In addition, the system also has a complete fault detection and alarm mechanism, which can promptly detect and handle abnormal conditions in the system, thereby ensuring the continuous operation and efficient production of the production line.

[0009] To achieve the above-mentioned purpose, the present invention provides an operating method for a multi-station fixture automated riveting process system, the operating method comprising step one, step two, and step three, wherein step one comprises a preliminary feeding assembly stage, step two comprises a workpiece riveting stage, the workpiece riveting stage is divided into a workpiece forward riveting stage and a workpiece reverse riveting stage, and step three comprises a ruler handle and lower frame block assembly stage.

[0010] As a further improvement of the present invention, in order to ensure accurate positioning and stable clamping of the workpiece on the production line, avoid the problems of workpiece misalignment and loose installation, and improve the qualified rate of the product, the operation method of the feeding preliminary assembly stage includes the following steps: Step 1: Send the workpiece to be processed, such as workpiece 1 and workpiece A, into the production line. After the workpiece is sent in, the first station inspection is carried out to ensure that the workpiece has been correctly placed in the predetermined position. Once the station inspection is passed, the material pushing operation is carried out to move the workpiece to the position of the next process; Step 2: After clamping the workpiece, perform a second station inspection to ensure that the workpiece has been correctly clamped and is in a position suitable for processing. Depending on production requirements, the workpiece may need to be rotated to a specific angle. If necessary, perform the rotation operation; Step 3: Use the servo motor and the tightening device to tighten workpiece 1 and workpiece A, and check whether the tightening operation meets the predetermined conditions such as torque value, tightening degree, etc. If so, the installation is determined to be successful. If not, use the pneumatic feeding device to perform further tightening operations; Step 4: After completing the tightening operation, perform the third station inspection to ensure that workpiece 1 and workpiece A have been correctly processed and are in preparation for the next process. Use the robot to load the processed assembly from the current workstation to the next process.

[0011] As a further improvement of the present invention, in order to ensure the accuracy and stability of the riveting process, ensure that the next process is carried out after the process requirements are met, and ensure product quality and production efficiency, the operation method of the workpiece reverse riveting stage includes the following steps: Step 1: Place the assembly in the initial assembly stage of the feed to the designated processing position of the workpiece reverse riveting stage through the transfer robot to ensure that the assembly is accurately aligned with the riveting position; Step 2: Determine workpiece 3B as the part to be riveted, perform the first station inspection on workpiece 3B to ensure that the workpiece has been correctly placed in the predetermined position, and after passing the station inspection, use the clamping limit device to fix workpiece 3B to prevent the workpiece from moving or misaligning during the riveting process; Step 3: Rivet the workpiece 3B with the assembly in the initial assembly stage of the feed. After the riveting operation is completed, the semi-finished product after riveting is inspected at the work station. If it meets the process requirements, it is placed in the next process through the transfer robot. If not, it needs to be re-positioned, clamped and riveted according to the operation logic.

[0012] As a further improvement of the present invention, in order to ensure that the workpiece is in the correct riveting position, avoid the riveting failure caused by incorrect workpiece position or insufficient riveting force, and further improve product quality, the operation method of the workpiece forward riveting stage includes the following steps: Step 1: Place the assembly in the preliminary assembly stage of the feed to the designated processing position of the workpiece forward riveting stage through the transfer robot to ensure that the assembly is accurately aligned with the riveting position; Step 2: The sensor detects the position of the workpiece to confirm whether it is in the correct riveting position. If the position is detected to be incorrect, the system will immediately issue a warning and suspend subsequent operations, waiting for manual adjustment of the workpiece position. Once the workpiece position is confirmed to be correct, the system starts the clamping device to firmly fix the workpiece on the workstation; Step 3: Before the riveting operation begins, the system first confirms that the riveting cylinder is in the initial position. If it is not in the initial position, the riveting cylinder is reset; according to the thickness of the workpiece and the required riveting force, the system sets the stroke of the riveting cylinder; Step 4: After confirming that the workpiece is in the correct position, the clamping device is stable, and the cylinder stroke is set correctly, the system starts the riveting operation. The first step is the "riveting one" step. At this time, the riveting cylinder starts to move, pushing the rivet to penetrate the workpiece and form a connection; Step 5: During the riveting process, the system will monitor the stroke of the riveting cylinder in real time. When the preset stroke end is reached, the system determines that the riveting is successful and is ready for the next step; if the set stroke is not reached, it is considered a riveting failure, and the system will stop the operation and issue a warning; Step 6: During the riveting process, multiple riveting may be required to ensure the firmness of the connection. At this time, the system will continue to execute the "Riveting 2" step according to the preset program. Similar to "Riveting 1", "Riveting 2" will also perform stroke judgment to ensure the quality of riveting; Step 7: After completing all riveting operations, the riveting cylinder needs to be reset to the initial position for the next riveting operation. After the riveting reset is completed, the system will decide whether to perform the transfer operation based on the judgment result of whether the riveting is successful or not; if all riveting is completed successfully, the system will issue a command to control the robot to transfer the workpiece from the current process to the next process; if the riveting fails, the robot will not perform the transfer operation and issue an instruction to remind manual intervention.

[0013] As a further improvement of the present invention, in order to ensure the accuracy and stability of the assembly process, ensure the smooth progress of the production process, avoid production interruptions caused by equipment failure or operational errors, and improve production efficiency and product quality, the ruler handle and lower frame block assembly stage includes the following steps: Step 1: Place the assembly in the riveting stage to the designated processing position for the assembly of the ruler handle and the lower frame block through the transfer robot to ensure that the assembly is accurately aligned with the riveting position; Step 2: Start the feeding cylinder and move the ruler handle from the storage position to the processing position, ensuring that the feeding process is smooth without abnormal jamming or collision, start the clamping device and firmly fix the ruler handle on the assembly fixture; Step 3: The feeding cylinder sends the ruler handle and the lower clamping block to the specified position. At this time, the system uses the sensor to detect whether the cylinder has reached the set stroke to determine whether it is working normally. If the cylinder fails to reach the set stroke, the system will sound an alarm and enter the manual intervention procedure to ensure the smooth progress of the production process; Step 4: After the workpiece is clamped and positioned, the cylinder starts working. The system uses sensors to detect whether the cylinder has reached the set stroke to determine whether the assembly process is normal. If the cylinder fails to reach the set stroke, an alarm will also be triggered and the manual intervention procedure will be entered; Step 5: The feeding cylinder sends the ruler handle to the specified position, the clamping device clamps and positions it, the feeding cylinder sends the lower clamping block to the specified position, the clamping device clamps and positions the lower clamping block; Step 6: The feeding cylinder operates again. When the cylinder reaches the set stroke again, the assembly is assembled with the ruler handle and the lower bracket block. Check the assembly of the lower clamp block and the ruler handle. If the feeding cylinder fails to reach the set stroke, an alarm will be triggered and the manual intervention procedure will be entered. Step 7: Use the robot transfer device to remove the assembled finished product from the fixture and move the finished product to the next process.

[0014] When the present invention is working, the workpiece to be processed, such as workpiece 1 and workpiece A, is sent to the production line, and the first station detection is performed to ensure that the workpiece has been correctly placed in the predetermined position. If the detection is passed, the next step of pushing the material is performed. The workpiece is clamped, and then the second station detection is performed to ensure that the workpiece has been correctly clamped and is in a position suitable for processing. The workpiece is tightened using a servo motor and a tightening device, and it is checked whether the tightening operation meets the predetermined conditions. If the conditions are met, the installation is determined to be successful; if not, a pneumatic feeding device is used to perform further tightening operations. After the tightening operation is completed, a third station detection is performed to ensure that the workpiece has been correctly processed and is in a ready state for the next process. A manipulator is used to load the processed assembly from the current workstation to the next process.

[0015] (I) Workpiece forward riveting stage Place the assembly at the designated processing position, detect the workpiece position through the sensor, start the clamping device to fix the workpiece, confirm that the riveting cylinder is in the initial position, if not, reset it, set the stroke of the riveting cylinder according to the workpiece thickness and the required riveting force, start the riveting operation, and perform the "riveting one" and "riveting two" steps in sequence. During the riveting process, monitor the stroke of the riveting cylinder in real time. If it reaches the preset stroke end point, it is determined that the riveting is successful. After the riveting is completed, the riveting cylinder is reset to the initial position. Based on the result of the riveting success, decide whether to perform the transfer operation.

[0016] (II) Workpiece reverse riveting stage Place the assembly at the designated processing position in the reverse riveting stage, and fix the workpiece by the clamping limit device. Perform riveting operation on the workpiece. After riveting, perform station inspection. If it meets the process requirements, it will be transferred to the next process. If not, reposition, clamp and rivet.

[0017] Place the assembly in the riveting stage to the designated processing position for the ruler handle and the lower frame block assembly. Start the feeding cylinder to move the ruler handle and the lower clamp block to the processing position respectively, and ensure that the feeding process is smooth. Start the clamping device to firmly fix the ruler handle and the lower clamp block on the assembly fixture. Use sensors to detect whether the feeding cylinder and the oil cylinder have reached the set stroke to determine whether the assembly process is normal. Use the oil cylinder to push the assembly with the ruler handle and the lower frame block for assembly. Check the assembly status. If it meets the requirements, use the robot transfer device to remove the finished product from the fixture and move it to the next process.

[0018] The beneficial effects of the present invention are: Improved production efficiency: Through the automation system and multi-station design, this method realizes continuous and efficient processing of workpieces. Each station focuses on specific processing tasks, such as initial assembly of feed materials, forward / reverse riveting, ruler handle and lower frame block assembly, etc., thus reducing waiting time and manual intervention and significantly improving production efficiency.

[0019] Ensure processing quality: The method includes multiple station inspections and quality control steps, such as three station inspections during the initial assembly stage of feeding materials, and real-time monitoring of the stroke of the riveting cylinder during the riveting stage. These measures ensure the accurate positioning, clamping and riveting quality of the workpiece during the processing, thereby improving the overall quality and reliability of the product.

[0020] Enhanced flexibility: The system is able to handle different types of workpieces and processing requirements. For example, during the workpiece riveting stage, forward or reverse riveting can be selected according to the processing requirements, and the stroke of the riveting cylinder can be adjusted according to the thickness of the workpiece and the required riveting force. This flexibility enables the system to adapt to a variety of production scenarios and workpiece specifications.

[0021] Reduce human errors: Through automation and intelligent control, this method reduces the need for manual operation, thereby reducing errors and deviations caused by human factors. The system can automatically detect the position of the workpiece, the clamping state and the riveting quality, and issue a warning or stop the operation when necessary to ensure the accuracy and safety of the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to facilitate the understanding of those skilled in the art, the present invention is further described below with reference to the accompanying drawings: Figure 1 It is a workflow diagram of the preliminary material feeding assembly stage and the workpiece riveting stage of the present invention.

[0023] Figure 2 This is a flow chart of the assembly phase of the ruler handle and lower frame block. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution in this application, Figure 1-2 The present invention is further described. The following examples are only used to more clearly illustrate the technical solution of the present invention, and are not intended to limit the protection scope of the present invention.

[0025] like Figure 1-2An operating method of a multi-station fixture automated riveting process system is shown, and the operating method includes step one, step two, and step three. Step one includes a preliminary feeding assembly stage, and step two includes a workpiece riveting stage. The workpiece riveting stage is divided into a workpiece forward riveting stage and a workpiece reverse riveting stage. Step three includes a ruler handle and lower frame block assembly stage.

[0026] The operation method of the feed preliminary assembly stage comprises the following steps: Step 1: Send the workpiece to be processed, such as workpiece 1 and workpiece A, into the production line. After the workpiece is sent in, the first station inspection is carried out to ensure that the workpiece has been correctly placed in the predetermined position. Once the station inspection is passed, the material pushing operation is carried out to move the workpiece to the position of the next process; Step 2: After clamping the workpiece, perform a second station inspection to ensure that the workpiece has been correctly clamped and is in a position suitable for processing. Depending on production requirements, the workpiece may need to be rotated to a specific angle. If necessary, perform the rotation operation; Step 3: Use the servo motor and the tightening device to tighten workpiece 1 and workpiece A, and check whether the tightening operation meets the predetermined conditions such as torque value, tightening degree, etc. If so, the installation is determined to be successful. If not, use the pneumatic feeding device to perform further tightening operations; Step 4: After completing the tightening operation, perform the third station inspection to ensure that workpiece 1 and workpiece A have been correctly processed and are in preparation for the next process. Use the robot to load the processed assembly from the current workstation to the next process.

[0027] The operation method of the workpiece reverse riveting stage comprises the following steps: Step 1: Place the assembly in the initial assembly stage of the feed to the designated processing position of the workpiece reverse riveting stage through the transfer robot to ensure that the assembly is accurately aligned with the riveting position; Step 2: Determine workpiece 3B as the part to be riveted, perform the first station inspection on workpiece 3B to ensure that the workpiece has been correctly placed in the predetermined position, and after passing the station inspection, use the clamping limit device to fix workpiece 3B to prevent the workpiece from moving or misaligning during the riveting process; Step 3: Rivet the workpiece 3B with the assembly in the initial assembly stage of the feed. After the riveting operation is completed, the semi-finished product after riveting is inspected at the work station. If it meets the process requirements, it is placed in the next process through the transfer robot. If not, it needs to be re-positioned, clamped and riveted according to the operation logic.

[0028] The operation method of the workpiece forward riveting stage comprises the following steps: Step 1: Place the assembly in the preliminary assembly stage of the feed to the designated processing position of the workpiece forward riveting stage through the transfer robot to ensure that the assembly is accurately aligned with the riveting position; Step 2: The sensor detects the position of the workpiece to confirm whether it is in the correct riveting position. If the position is detected to be incorrect, the system will immediately issue a warning and suspend subsequent operations, waiting for manual adjustment of the workpiece position. Once the workpiece position is confirmed to be correct, the system starts the clamping device to firmly fix the workpiece on the workstation; Step 3: Before the riveting operation begins, the system first confirms that the riveting cylinder is in the initial position. If it is not in the initial position, the riveting cylinder is reset; according to the thickness of the workpiece and the required riveting force, the system sets the stroke of the riveting cylinder; Step 4: After confirming that the workpiece is in the correct position, the clamping device is stable, and the cylinder stroke is set correctly, the system starts the riveting operation. The first step is the "riveting one" step. At this time, the riveting cylinder starts to move, pushing the rivet to penetrate the workpiece and form a connection; Step 5: During the riveting process, the system will monitor the stroke of the riveting cylinder in real time. When the preset stroke end is reached, the system determines that the riveting is successful and is ready for the next step; if the set stroke is not reached, it is considered a riveting failure, and the system will stop the operation and issue a warning; Step 6: During the riveting process, multiple riveting may be required to ensure the firmness of the connection. At this time, the system will continue to execute the "Riveting 2" step according to the preset program. Similar to "Riveting 1", "Riveting 2" will also perform stroke judgment to ensure the quality of riveting; Step 7: After completing all riveting operations, the riveting cylinder needs to be reset to the initial position for the next riveting operation. After the riveting reset is completed, the system will decide whether to perform the transfer operation based on the judgment result of whether the riveting is successful or not; if all riveting is completed successfully, the system will issue a command to control the robot to transfer the workpiece from the current process to the next process; if the riveting fails, the robot will not perform the transfer operation and issue an instruction to remind manual intervention.

[0029] The assembly stage of the ruler handle and the lower frame block includes the following steps: Step 1: Place the assembly in the riveting stage to the designated processing position for the assembly of the ruler handle and the lower frame block through the transfer robot to ensure that the assembly is accurately aligned with the riveting position; Step 2: Start the feeding cylinder and move the ruler handle from the storage position to the processing position, ensuring that the feeding process is smooth without abnormal jamming or collision, start the clamping device and firmly fix the ruler handle on the assembly fixture; Step 3: The feeding cylinder sends the ruler handle and the lower clamping block to the specified position. At this time, the system uses the sensor to detect whether the cylinder has reached the set stroke to determine whether it is working normally. If the cylinder fails to reach the set stroke, the system will sound an alarm and enter the manual intervention procedure to ensure the smooth progress of the production process; Step 4: After the workpiece is clamped and positioned, the cylinder starts working. The system uses sensors to detect whether the cylinder has reached the set stroke to determine whether the assembly process is normal. If the cylinder fails to reach the set stroke, an alarm will also be triggered and the manual intervention procedure will be entered; Step 5: The feeding cylinder sends the ruler handle to the specified position, the clamping device clamps and positions it, the feeding cylinder sends the lower clamping block to the specified position, the clamping device clamps and positions the lower clamping block; Step 6: The feeding cylinder operates again. When the cylinder reaches the set stroke again, the assembly is assembled with the ruler handle and the lower bracket block. Check the assembly of the lower clamp block and the ruler handle. If the feeding cylinder fails to reach the set stroke, an alarm will be triggered and the manual intervention procedure will be entered. Step 7: Use the robot transfer device to remove the assembled finished product from the fixture and move the finished product to the next process.

[0030] When the present invention is working, the workpiece to be processed, such as workpiece 1 and workpiece A, is sent to the production line, and the first station detection is performed to ensure that the workpiece has been correctly placed in the predetermined position. If the detection is passed, the next step of pushing the material is performed. The workpiece is clamped, and then the second station detection is performed to ensure that the workpiece has been correctly clamped and is in a position suitable for processing. The workpiece is tightened using a servo motor and a tightening device, and it is checked whether the tightening operation meets the predetermined conditions. If the conditions are met, the installation is determined to be successful; if not, a pneumatic feeding device is used to perform further tightening operations. After the tightening operation is completed, a third station detection is performed to ensure that the workpiece has been correctly processed and is in a ready state for the next process. A manipulator is used to load the processed assembly from the current workstation to the next process.

[0031] (I) Workpiece forward riveting stage Place the assembly at the designated processing position, detect the workpiece position through the sensor, start the clamping device to fix the workpiece, confirm that the riveting cylinder is in the initial position, if not, reset it, set the stroke of the riveting cylinder according to the workpiece thickness and the required riveting force, start the riveting operation, and perform the "riveting one" and "riveting two" steps in sequence. During the riveting process, monitor the stroke of the riveting cylinder in real time. If it reaches the preset stroke end point, it is determined that the riveting is successful. After the riveting is completed, the riveting cylinder is reset to the initial position. Based on the result of the riveting success, decide whether to perform the transfer operation.

[0032] (II) Workpiece reverse riveting stage Place the assembly at the designated processing position in the reverse riveting stage, and fix the workpiece by the clamping limit device. Perform riveting operation on the workpiece. After riveting, perform station inspection. If it meets the process requirements, it will be transferred to the next process. If not, reposition, clamp and rivet.

[0033] Place the assembly in the riveting stage to the designated processing position for the ruler handle and the lower frame block assembly. Start the feeding cylinder to move the ruler handle and the lower clamp block to the processing position respectively, and ensure that the feeding process is smooth. Start the clamping device to firmly fix the ruler handle and the lower clamp block on the assembly fixture. Use sensors to detect whether the feeding cylinder and the oil cylinder have reached the set stroke to determine whether the assembly process is normal. Use the oil cylinder to push the assembly with the ruler handle and the lower frame block for assembly. Check the assembly status. If it meets the requirements, use the robot transfer device to remove the finished product from the fixture and move it to the next process.

[0034] The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present invention, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present invention.

Claims

1. An operating method of a multi-station fixture automated riveting process system, characterized in that: The operation method includes step one, step two, and step three. Step one includes a preliminary feeding assembly stage. Step two includes a workpiece riveting stage, which is divided into a workpiece forward riveting stage and a workpiece reverse riveting stage. Step three includes a ruler handle and lower frame block assembly stage.

2. The operating method of the multi-station fixture automated riveting process system according to claim 1 is characterized in that: The operation method of the feed preliminary assembly stage comprises the following steps: Step 1: Send the workpiece to be processed, such as workpiece 1 and workpiece A, into the production line. After the workpiece is sent in, the first station inspection is carried out to ensure that the workpiece has been correctly placed in the predetermined position. Once the station inspection is passed, the material pushing operation is carried out to move the workpiece to the position of the next process; Step 2: After clamping the workpiece, perform a second station inspection to ensure that the workpiece has been correctly clamped and is in a position suitable for processing. Depending on production requirements, the workpiece may need to be rotated to a specific angle. If necessary, perform the rotation operation; Step 3: Use the servo motor and the tightening device to tighten workpiece 1 and workpiece A, and check whether the tightening operation meets the predetermined conditions such as torque value, tightening degree, etc. If so, the installation is determined to be successful. If not, use the pneumatic feeding device to perform further tightening operations; Step 4: After completing the tightening operation, perform the third station inspection to ensure that workpiece 1 and workpiece A have been correctly processed and are in preparation for the next process. Use the robot to load the processed assembly from the current workstation to the next process.

3. The method for operating a multi-station fixture automated riveting process system according to claim 1, characterized in that: The operation method of the workpiece reverse riveting stage comprises the following steps: Step 1: Place the assembly in the initial assembly stage of the feed to the designated processing position of the workpiece reverse riveting stage through the transfer robot to ensure that the assembly is accurately aligned with the riveting position; Step 2: Determine workpiece 3B as the part to be riveted, perform the first station inspection on workpiece 3B to ensure that the workpiece has been correctly placed in the predetermined position, and after passing the station inspection, use the clamping limit device to fix workpiece 3B to prevent the workpiece from moving or misaligning during the riveting process; Step 3: Rivet the workpiece 3B with the assembly in the initial assembly stage of the feed. After the riveting operation is completed, the semi-finished product after riveting is inspected at the work station. If it meets the process requirements, it is placed in the next process through the transfer robot. If not, it needs to be re-positioned, clamped and riveted according to the operation logic.

4. The operating method of the multi-station fixture automated riveting process system according to claim 1 is characterized in that: The operation method of the workpiece forward riveting stage comprises the following steps: Step 1: Place the assembly in the preliminary assembly stage of the feed material to the designated processing position of the workpiece forward riveting stage through the transfer robot to ensure that the assembly is accurately aligned with the riveting position; Step 2: The sensor detects the position of the workpiece to confirm whether it is in the correct riveting position. If the position is detected to be incorrect, the system will immediately issue a warning and suspend subsequent operations, waiting for manual adjustment of the workpiece position. Once the workpiece position is confirmed to be correct, the system starts the clamping device to firmly fix the workpiece on the workstation; Step 3: Before the riveting operation begins, the system first confirms that the riveting cylinder is in the initial position. If it is not in the initial position, the riveting cylinder is reset; according to the thickness of the workpiece and the required riveting force, the system sets the stroke of the riveting cylinder; Step 4: After confirming that the workpiece is in the correct position, the clamping device is stable, and the cylinder stroke is set correctly, the system starts the riveting operation. The first step is the "riveting one" step. At this time, the riveting cylinder starts to move, pushing the rivet through the workpiece and forming a connection; Step 5: During the riveting process, the system will monitor the stroke of the riveting cylinder in real time. When the preset stroke end is reached, the system determines that the riveting is successful and is ready for the next step; if the set stroke is not reached, it is considered a riveting failure, and the system will stop the operation and issue a warning; Step 6: During the riveting process, multiple riveting may be required to ensure the firmness of the connection. At this time, the system will continue to execute the "Riveting 2" step according to the preset program. Similar to "Riveting 1", "Riveting 2" will also perform stroke judgment to ensure the quality of riveting; Step 7: After completing all riveting operations, the riveting cylinder needs to be reset to the initial position for the next riveting operation. After the riveting reset is completed, the system will decide whether to perform the transfer operation based on the judgment result of whether the riveting is successful or not; if all riveting is completed successfully, the system will issue a command to control the robot to transfer the workpiece from the current process to the next process; if the riveting fails, the robot will not perform the transfer operation and issue an instruction to remind manual intervention.

5. The method for operating a multi-station fixture automated riveting process system according to claim 1, characterized in that: The assembly stage of the ruler handle and the lower frame block includes the following steps: Step 1: Place the assembly in the riveting stage to the designated processing position for the assembly of the ruler handle and the lower frame block through the transfer robot to ensure that the assembly is accurately aligned with the riveting position; Step 2: Start the feeding cylinder and move the ruler handle from the storage position to the processing position, ensuring that the feeding process is smooth without abnormal jamming or collision, start the clamping device and firmly fix the ruler handle on the assembly fixture; Step 3: The feeding cylinder sends the ruler handle and the lower clamping block to the specified position. At this time, the system uses the sensor to detect whether the cylinder has reached the set stroke to determine whether it is working normally. If the cylinder fails to reach the set stroke, the system will sound an alarm and enter the manual intervention procedure to ensure the smooth progress of the production process; Step 4: After the workpiece is clamped and positioned, the cylinder starts working. The system uses sensors to detect whether the cylinder has reached the set stroke to determine whether the assembly process is normal. If the cylinder fails to reach the set stroke, an alarm will also be triggered and the manual intervention procedure will be entered; Step 5: The feeding cylinder sends the ruler handle to the specified position, the clamping device clamps and positions it, the feeding cylinder sends the lower clamping block to the specified position, the clamping device clamps and positions the lower clamping block; Step 6: The feeding cylinder operates again. When the cylinder reaches the set stroke again, the assembly is assembled with the ruler handle and the lower bracket block. Check the assembly of the lower clamp block and the ruler handle. If the feeding cylinder fails to reach the set stroke, an alarm will be triggered and the manual intervention procedure will be entered. Step 7: Use the robot transfer device to remove the assembled finished product from the fixture and move the finished product to the next process.

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