Engine bolt tightening intelligent correction device
Patent Information
- Application Number
- CN202522439778.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-18
- Publication Date
- 2026-10-20
- Estimated Expiration
- 2035-11-18
AI Technical Summary
[0002]在发动机装配过程中,主轴承螺栓、连杆螺栓、缸盖螺栓等关键部位的拧紧质量直接影响整机性能,目前多数生产线仍以人工或半自动方式完成拧紧作业,虽配备扭矩枪、角度传感器等工具监控拧紧力矩,但对作业顺序、操作规范的管控能力有限
本申请中,在工作过程中,系统首先通过位置识别模块确认当前工具对应的螺栓位置,随后视觉检测模块验证操作者是否在正确工位执行操作,当拧紧动作开始时,控制主机实时采集力矩与角度数据并与标准值比对;若顺序正确且拧紧参数合格,则系统记录拧紧数据;若顺序错误、漏拧或超差,则立即触发报警反馈单元,阻止下一步操作,并在操作终端显示异常信息,从而完成发动机螺栓拧紧过程中的智能纠错。
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Figure CN224866706U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engine technology, and in particular to an intelligent error correction device for engine bolt tightening. Background Technology
[0002] During engine assembly, the tightening quality of key components such as main bearing bolts, connecting rod bolts, and cylinder head bolts directly affects the overall performance of the engine. Currently, most production lines still complete the tightening operation manually or semi-automatically. Although tools such as torque guns and angle sensors are used to monitor the tightening torque, the ability to control the work sequence and operating procedures is limited.
[0003] Existing engine bolt tightening systems lack sequence control, making it impossible to identify whether operators are tightening bolts in the required sequence. This easily leads to incorrect or missed tightening, and there is no real-time error correction. Abnormal bolt tightening is difficult to alarm in a timely manner, and problems are mostly discovered during subsequent quality inspections. The system has weak operation recognition capabilities and lacks intelligent recognition of operational behaviors, making it unable to determine whether they meet SOP standards. At the same time, the data closed loop is insufficient, and tightening data is not effectively linked to specific locations, personnel, and behaviors, resulting in poor traceability and analysis capabilities. Therefore, it is necessary to design an intelligent error correction device for engine bolt tightening. Utility Model Content
[0004] The purpose of this utility model is to provide an intelligent error correction device for engine bolt tightening in order to solve the above-mentioned problems.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: An intelligent error correction device for tightening engine bolts includes a support frame. The support frame has a first housing fixedly connected to its top and a second housing fixedly connected to its bottom. A shelf is fixedly connected to the top of the first housing. An operating terminal is mounted on the outer wall of the support frame. An intelligent tightening tool is mounted on the support frame. A position recognition module is installed inside the first housing, and a visual inspection module is installed on the inner wall of the first housing. A control host is installed inside the second housing. An alarm feedback unit is located on the top of the operating terminal and is fixedly connected to the side wall of the support frame. A bit replacement box is fixedly connected to the side wall of the shelf.
[0006] Preferably, the intelligent tightening tool includes a housing, a motor output shaft, a motor switch, an internal hex socket, and a cable. The housing is inserted into one side of the support frame, and a motor is installed inside the housing. The motor output shaft is installed at the bottom of the motor, and a motor switch is installed on the side wall of the motor. An internal hex socket is fixedly connected to the bottom of the motor output shaft, and the top of the motor is connected to the control host via a cable.
[0007] Preferably, the bit replacement box includes a storage box, a sealing cover, and a partition plate. The storage box is fixedly connected to the side wall of the shelf, the sealing cover is rotatably connected to the top of the storage box, and the partition plate is fixedly connected to the inner wall of the storage box.
[0008] Preferably, the location identification module is a laser locator.
[0009] Preferably, the vision inspection module is configured as a monocular or binocular industrial camera.
[0010] Preferably, the alarm feedback unit is configured as an audible and visual alarm.
[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: In this application, during the operation, the system first confirms the bolt position corresponding to the current tool through the position recognition module, and then the vision detection module verifies whether the operator is performing the operation in the correct position. When the tightening action begins, the control host collects torque and angle data in real time and compares them with the standard values. If the sequence is correct and the tightening parameters are qualified, the system records the tightening data. If the sequence is incorrect, there are omissions, or the tolerance is exceeded, the alarm feedback unit is immediately triggered to prevent the next operation and display abnormal information on the operation terminal, thereby completing the intelligent error correction in the engine bolt tightening process. Attached Figure Description
[0012] Figure 1 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown; Figure 2 A cross-sectional view of a box structure provided according to an embodiment of the present utility model is shown; Figure 3 A schematic diagram of the bit replacement box structure according to an embodiment of the present invention is shown; Figure 4 A schematic diagram of the structure of the intelligent tightening tool provided according to an embodiment of the present invention is shown.
[0013] Legend: 1. Support frame; 2. Box 1; 3. Box 2; 4. Storage platform; 5. Operating terminal; 6. Intelligent tightening tool; 601. Outer shell; 602. Motor output shaft; 603. Motor switch; 604. Hex socket; 605. Cable; 7. Position recognition module; 8. Vision inspection module; 9. Control host; 10. Alarm feedback unit; 11. Storage box; 12. Sealing cover; 13. Divider. Detailed Implementation
[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0015] Please see Figure 1-4 This utility model provides a technical solution: like Figure 1-4 As shown, an intelligent error correction device for tightening engine bolts includes a support frame 1. A housing 2 is fixedly connected to the top of the support frame 1, and a housing 3 is fixedly connected to the bottom of the support frame 1. A shelf 4 is fixedly connected to the top of the housing 2. An operating terminal 5, which is a touch screen, is installed on the outer wall of the support frame 1. An intelligent tightening tool 6 is installed on the support frame 1. A position recognition module 7 is installed inside the housing 2. A vision detection module 8 is installed on the inner wall of the housing 2. A control host 9, which can be a PLC, an industrial PC, or an embedded control board, is installed inside the housing 3. An alarm feedback unit 10 is provided on the top of the operating terminal 5. The alarm feedback unit 10 is fixedly connected to the side wall of the support frame 1. A bit replacement box is fixedly connected to the side wall of the shelf 4.
[0016] like Figure 4 As shown, the intelligent tightening tool 6 includes a housing 601, a motor output shaft 602, a motor switch 603, an internal hex socket 604, and a cable 605. The housing 601 is inserted into one side of the support frame 1. A motor is installed inside the housing 601. The motor output shaft 602 is installed at the bottom of the motor, and the motor switch 603 is installed on the side wall of the motor. The internal hex socket 604 is fixedly connected to the bottom of the motor output shaft 602. The top of the motor is connected to the control host 9 via the cable 605. Figure 3 As shown, the bit replacement box includes a storage box 11, a sealing cover 12, and a partition plate 13. The storage box 11 is fixedly connected to the side wall of the platform 4, and the sealing cover 12 is rotatably connected to the top of the storage box 11. The partition plate 13 is fixedly connected to the inner wall of the storage box 11, dividing the storage box 11 into multiple spaces. Different sizes of bits are placed in different spaces. In this way, when faced with different sizes of bolts on different engines, the operator can install different sizes of bits onto the intelligent tightening tool 6. The position recognition module 7 is set as a laser locator, the vision detection module 8 is set as a monocular or binocular industrial camera, and the alarm feedback unit 10 is set as an audible and visual alarm.
[0017] Working Principle: In this embodiment, the intelligent error correction device for tightening engine bolts is used by the operator. First, the operator places the engine on the platform 4. Then, the operator takes the intelligent tightening tool 6, rotates the sealing cover 12 to open the storage box 11, and inserts the appropriate bit into the internal hex socket 604. The motor is then started via the motor switch 603, causing the motor output shaft 602 to rotate. The motor output shaft 602, through the internal hex socket 604, causes the bit to rotate, thus tightening the bolts on the engine. Simultaneously, the position recognition module 7 automatically determines the current work position, and the vision detection module 8 identifies the tool posture and bolt status, controlling... The main unit 9 comprehensively judges whether the operation conforms to the standard procedure. When an error in the tightening sequence, omission, or parameter exceeding the limit is detected, the alarm feedback unit 10 is immediately triggered. The alarm feedback unit 10 will remind the staff of the operation error through an audible and visual alarm and display an abnormal prompt on the operation terminal 5 to prevent the erroneous operation from continuing. This device realizes the sequence recognition, action monitoring and real-time error correction of the bolt tightening process through the fusion of multi-sensor information. It has the characteristics of simple structure, fast response and easy integration. Compared with the existing technology, it can realize the standardization and intelligent control of the entire process of tightening key engine bolts, significantly reduce the risk of human error, and improve assembly consistency and product quality stability.
[0018] In summary, during operation, the system first confirms the bolt position corresponding to the current tool through the position recognition module 7. Then, the vision detection module 8 verifies whether the operator is performing the operation in the correct position. When the tightening action begins, the control host 9 collects torque and angle data in real time and compares them with the standard values. If the sequence is correct and the tightening parameters are qualified, the system records the tightening data. If the sequence is incorrect, there are omissions, or the tolerance is exceeded, the alarm feedback unit 10 is immediately triggered to prevent the next operation and display the abnormal information on the operation terminal 5, thereby completing the intelligent error correction in the engine bolt tightening process.
[0019] The above description of the embodiments enables those skilled in the art to make or use the present invention. 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 invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. An intelligent error correction device for engine bolt tightening, comprising a support frame (1), characterized in that, The top of the support frame (1) is fixedly connected to a box body (2), the bottom of the support frame (1) is fixedly connected to a box body (3), the top of the box body (2) is fixedly connected to a shelf (4), the outer wall of the support frame (1) is equipped with an operating terminal (5), the support frame (1) is equipped with an intelligent tightening tool (6), the inside of the box body (2) is equipped with a position recognition module (7), the inner wall of the box body (2) is equipped with a visual inspection module (8), the inside of the box body (3) is equipped with a control host (9), the top of the operating terminal (5) is equipped with an alarm feedback unit (10), the alarm feedback unit (10) is fixedly connected to the side wall of the support frame (1), and the side wall of the shelf (4) is fixedly connected to a bit replacement box.
2. The intelligent error correction device for engine bolt tightening according to claim 1, characterized in that, The intelligent tightening tool (6) includes a housing (601), a motor output shaft (602), a motor switch (603), an internal hex socket (604), and a cable (605). The housing (601) is inserted into one side of the support frame (1). A motor is installed inside the housing (601). The motor output shaft (602) is installed at the bottom of the motor. The motor switch (603) is installed on the side wall of the motor. The internal hex socket (604) is fixedly connected to the bottom of the motor output shaft (602). The top of the motor is connected to the control host (9) through the cable (605).
3. The intelligent error correction device for engine bolt tightening according to claim 1, characterized in that, The bit replacement box includes a storage box (11), a sealing cover (12) and a partition plate (13). The storage box (11) is fixedly connected to the side wall of the shelf (4). The sealing cover (12) is rotatably connected to the top of the storage box (11). The partition plate (13) is fixedly connected to the inner wall of the storage box (11).
4. The intelligent error correction device for engine bolt tightening according to claim 1, characterized in that, The location identification module (7) is set as a laser locator.
5. The intelligent error correction device for engine bolt tightening according to claim 1, characterized in that, The vision inspection module (8) is configured as a monocular or binocular industrial camera.
6. The intelligent error correction device for engine bolt tightening according to claim 1, characterized in that, The alarm feedback unit (10) is configured as an audible and visual alarm.