A component misplacement device during the assembly process of a Yuchai engine
By using part error prevention and limit devices and sensors for real-time detection during engine assembly, the problem of part assembly errors was solved, improving the accuracy and reliability of assembly and reducing rework costs.
Patent Information
- Application Number
- CN202522692521.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-19
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-12-19
AI Technical Summary
Existing engine assembly equipment lacks structures that restrict the shape and position of parts, making it easy for parts to be misplaced during assembly, affecting engine quality. Furthermore, it is difficult to detect in real time whether parts are correctly placed, leading to problems such as missing or incorrect parts that are difficult to detect in a timely manner, increasing subsequent rework costs.
An error-proof placement device was designed, which includes a part error-proof limiting device, a support device, and a sensor mounting device. The part shape and posture are physically constrained by the limiting mounting groove and the mounting notch, and the part mounting status is detected in real time by the sensor to ensure that the part is correctly placed.
It effectively avoids incorrect or missing parts, improves the accuracy and reliability of engine assembly, reduces rework costs, and facilitates maintenance and expansion through modular design.
Smart Images

Figure CN224939998U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of Yuchai engine assembly technology, specifically to a part-prevention device for the assembly process of Yuchai engines. Background Technology
[0002] An engine is a machine that converts other forms of energy into mechanical energy, including internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, and electric motors. Internal combustion engines, for example, typically convert chemical energy into mechanical energy. The term "engine" can refer to both the power-generating device and the entire machine including the power unit (e.g., gasoline engine, aircraft engine). Engines originated in England, so the concept of an engine also originates from English, where it originally meant "a mechanical device that generates power."
[0003] Existing engine assembly equipment lacks structures that restrict the shape and position of parts, making it easy for parts to be misplaced during assembly, leading to assembly errors, affecting engine quality, and making it difficult to detect whether parts are correctly placed in real time. This can easily result in missing or incorrect parts, which are difficult to detect in time and increase subsequent rework costs.
[0004] Therefore, a solution is needed. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this utility model provides a part-prevention device for the assembly process of Yuchai engines, thereby solving the problems mentioned in the background art.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a part misplacement prevention device for the assembly process of a Yuchai engine, comprising a device body, the device body including a base, a part misplacement prevention limiting device, a support device, a part assembly, and a sensor mounting device. The part misplacement prevention limiting device is provided in two sets, and both sets are mounted on the top of the base with screws, the two sets being symmetrically distributed. The support device is provided in one set, and both sets are mounted on the top of the base with screws. The sensor mounting device is mounted on the top of the base and located on the side of the part misplacement prevention limiting device. The component is mounted on two sets of part error prevention and limiting devices and located above the support device; the part error prevention and limiting device includes a mounting base and a limiting cylinder. The mounting base and the limiting cylinder are smoothly transitioned and integrally formed. The mounting base is located at the bottom of the limiting cylinder. The limiting cylinder has a cylindrical structure. A limiting installation groove is opened at the top of the limiting cylinder. The limiting installation groove has a cylindrical structure. An installation notch is opened on the inner side of the limiting cylinder. The installation notch and the limiting installation groove have a through structure. Sensor detection holes are opened on both the left and right sides of the limiting cylinder. The front and rear ends of the mounting base have an arc-shaped structure. Two sets of fixing holes are symmetrically distributed on the surface of the mounting base.
[0009] Preferably, the support device has a T-shaped structure, and the support device includes a support column and a mounting block. The support column and the mounting block have a smooth transition and are integrally formed. The support column has a rectangular structure. A set of mounting blocks is provided, and the set of mounting blocks is located at the bottom left end and the bottom right end of the support column respectively. A weight-reducing groove is opened at the bottom of the support column. Fixing holes are opened on the surface of both the support column and the mounting block.
[0010] Preferably, the sensor mounting device has an L-shaped structure and includes a base block and a support block. The base block and the support block are smoothly transitioned and integrally formed. The support block is located at the inner top of the base block. A set of locking holes is formed on the surface of the base block. Sensor mounting slots are formed on the surface of the support block. The sensor mounting slots are long grooves.
[0011] Preferably, a part position detection sensor is mounted on the sensor mounting strip hole via a nut, and the part position detection sensor is directly opposite the sensor detection hole.
[0012] (III) Beneficial Effects
[0013] This utility model provides a device for preventing incorrect placement of parts during the assembly process of Yuchai engines. It has the following beneficial effects:
[0014] This solution presents a component misplacement prevention device for the assembly process of Yuchai engines. Through the limiting mounting grooves and mounting notches of the component misplacement prevention limit device, it precisely constrains the shape, posture, and installation position of components at a physical level, preventing misplacement from the outset. The component position detection sensor on the sensor mounting device works in conjunction with the sensor detection holes of the component misplacement prevention limit device to monitor the component installation status in real time, eliminating omissions and misplacements. Simultaneously, the stable structure and symmetrical layout of the support device ensure the positioning accuracy and stability of the assembly process. Furthermore, the modular design of each component using screw connections facilitates maintenance and provides good versatility. Ultimately, this solution effectively solves the pain points of difficult detection of misplacement and omissions, and high rework costs, significantly improving the accuracy, reliability, and overall assembly efficiency of Yuchai engines. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the overall front structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the overall side structure of this utility model.
[0018] In the diagram, 1. Device body; 2. Base; 3. Part anti-misalignment limiting device; 4. Support device; 5. Part assembly; 6. Sensor mounting device; 7. Mounting base; 8. Limiting cylinder; 9. Limiting mounting groove; 10. Sensor detection hole; 11. Fixing hole; 12. Support column; 13. Mounting block; 14. Weight reduction groove; 15. Bottom block; 16. Support block; 17. Part position detection sensor; 18. Sensor mounting strip hole; 19. Locking hole; 20. Mounting notch. Detailed Implementation
[0019] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Please see Figure 1-3 This utility model provides a technical solution:
[0021] Example 1
[0022] To address the aforementioned problems: existing engine assembly equipment lacks structures that restrict the shape and position of parts, making it easy for parts to be misplaced during assembly, leading to assembly errors, affecting engine quality, and making it difficult to detect whether parts are correctly placed in real time, resulting in omissions and misplacements that are difficult to detect in a timely manner, increasing subsequent rework costs.
[0023] The solution is as follows: A part misplacement prevention device for the assembly process of Yuchai engines, comprising a device body 1, the device body 1 including a base 2, part misplacement prevention limiting devices 3, support devices 4, part assemblies 5, and sensor mounting devices 6. The part misplacement prevention limiting devices 3 are provided in two sets, and both sets are mounted on the top of the base 2 with screws. The two sets of part misplacement prevention limiting devices 3 are symmetrically distributed. The support devices 4 are provided in one set, and both sets are mounted on the top of the base 2 with screws. The sensor mounting devices 6 are mounted on the top of the base 2 and located on the side of the part misplacement prevention limiting devices 3. The part assemblies 5 are mounted on both sets of part misplacement prevention limiting devices. The part anti-misalignment limiting device 3 is placed on top of the support device 4 and includes a mounting base 7 and a limiting cylinder 8. The mounting base 7 and the limiting cylinder 8 are smoothly transitioned and integrally formed. The mounting base 7 is located at the bottom of the limiting cylinder 8. The limiting cylinder 8 has a cylindrical structure. A limiting installation groove 9 is opened at the top of the limiting cylinder 8. The limiting installation groove 9 has a cylindrical structure. An installation notch 20 is opened on the inner side of the limiting cylinder 8. The installation notch 20 and the limiting installation groove 9 have a through structure. Sensor detection holes 10 are opened on both the left and right sides of the limiting cylinder 8. The front and rear ends of the mounting base 7 have an arc-shaped structure. Two sets of fixing holes 11 are symmetrically distributed on the surface of the mounting base 7.
[0024] Analysis of the above content: The limiting installation groove 9 (cylindrical) on the top of the limiting cylinder 8 and the installation notch 20 on the inner side (connected to the limiting installation groove) physically constrain the shape and installation posture of the parts; at the same time, the sensor detection holes 10 on both sides of the limiting cylinder 8, in conjunction with external sensors, detect the installation status of the parts; if the shape and structure of the parts match the limiting installation groove 9 and the installation notch 20, they can be smoothly placed; if they do not match, they cannot be placed, thus achieving physical error prevention; the sensors can detect whether the parts are in place in real time through the sensor detection holes 10; the mounting base 7 and the limiting cylinder 8 are integrally machined, resulting in high structural strength; the physical limiting structure limiting installation groove 9 and installation notch 20 prevent parts from being misinstalled from the source; the sensor detection holes 10 provide a channel for real-time detection; the fixing holes 11 of the mounting base 7 ensure a stable screw connection with the base 2, resulting in strong overall error prevention reliability.
[0025] Example 2:
[0026] Please see Figure 1-3This utility model provides a technical solution based on Embodiment 1: the support device 4 has a T-shaped structure, the support device 4 includes a support column 12 and a mounting block 13, the support column 12 and the mounting block 13 are smoothly transitioned and integrally formed, the support column 12 has a rectangular structure, the mounting block 13 is provided in a set and the set of mounting blocks 13 is respectively located at the bottom left end and the bottom right end of the support column 12, the bottom of the support column 12 is provided with a weight reduction groove 14, and the surfaces of the support column 12 and the mounting block 13 are provided with fixing holes 11.
[0027] Analysis of the above: The T-shaped support column 12 and the mounting block 13 are integrally machined to provide stable support for the component assembly 5; the weight-reducing groove 14 at the bottom of the support column 12 reduces the overall weight while ensuring structural rigidity; the support device 4 is installed on the base 2 with screws through the fixing holes 11 on the surface of the mounting block 13, and the support column 12 bears the load of the component assembly 5; the integrally molded structure ensures support strength; the T-shaped layout of the support column 12 and the mounting block 13 makes the support more stable and avoids displacement during component assembly; the weight-reducing groove 14 optimizes the structural weight, combining practicality and economy; the fixing holes 11 ensure secure installation and provide a reliable support environment for the component.
[0028] Example 3:
[0029] Please see Figure 1-3 The present invention provides a technical solution based on Embodiment 1: the sensor mounting device 6 has an L-shaped structure, the sensor mounting device 6 includes a base block 15 and a support block 16, the base block 15 and the support block 16 are smoothly transitioned and integrally formed, the support block 16 is located at the top inner end of the base block 15, a set of locking holes 19 are opened on the surface of the base block 15, and a sensor mounting strip hole 18 is opened on the surface of the support block 16, the sensor mounting strip hole 18 has a long groove-shaped structure;
[0030] A part position detection sensor 17 is mounted on the sensor mounting hole 18 by a nut, and the part position detection sensor 17 is directly opposite the sensor detection hole 10.
[0031] Analysis of the above: The L-shaped base block 15 and support block 16 are integrally machined. The sensor mounting slot 18 on the surface of the support block 16 is used to install the part position detection sensor 17. The sensor 17 is directly aligned with the sensor detection hole 10 of the part anti-misalignment limit device 3, thereby detecting in real time whether the part is installed in place. The device is fixed to the base 2 with screws through the locking hole 19 of the base block 15. The part position detection sensor 17 is installed on the sensor mounting slot 18, and the sensor position is adjusted to align with the sensor detection hole 10. The integrally molded structure has good stability. The sensor mounting slot 18 is long and slotted, which makes it easy to adjust the sensor installation position according to the requirements and has strong adaptability. The locking hole 19 of the base block 15 ensures that the installation is firm. Through real-time detection by the sensor, the problem of missing or incorrect installation of parts can be detected in time, avoiding subsequent rework and significantly reducing costs.
[0032] Working principle: During operation, the base 2 serves as the carrier. Two sets of symmetrical part-prevention and limit devices 3 use limit mounting slots 9 and mounting notches 20 to physically constrain the shape and posture of the parts, preventing misassembly from the source. The support device 4 provides stable support for the part assembly 5, ensuring the consistency of the part position during assembly. The part position detection sensor 17 on the sensor mounting device 6 monitors the part installation status in real time through the sensor detection hole 10, promptly detecting omissions and misassemblies. Ultimately, it achieves precise error prevention, real-time detection, and stable support for the assembly of Yuchai engine parts, effectively solving the pain points of easy misassembly and omission of parts and difficulty in real-time detection in existing technologies. It significantly improves the accuracy and reliability of engine assembly, reduces subsequent rework costs, and the modular structural design also facilitates the maintenance and adaptation of the device.
[0033] The present invention comprises: 1. Device body; 2. Base; 3. Part anti-misalignment limiting device; 4. Support device; 5. Part assembly; 6. Sensor mounting device; 7. Mounting base; 8. Limiting cylinder; 9. Limiting mounting groove; 10. Sensor detection hole; 11. Fixing hole; 12. Support column; 13. Mounting block; 14. Weight reduction groove; 15. Base block; 16. Support block; 17. Part position detection sensor; 18. Sensor mounting strip hole; 19. Locking hole; 20. Mounting notch. All components are general standard parts or parts known to those skilled in the art, and their structure and principles are readily understood by those skilled in the art. According to technical manuals or conventional experimental methods, the problem solved by this utility model is that existing engine assembly equipment lacks a structure to restrict the shape and position of parts. Parts are easily misplaced during assembly, leading to assembly errors, affecting engine quality, and it is difficult to detect whether parts are correctly placed in real time. This can easily result in omissions or misplacements, which are difficult to detect in time and increase subsequent rework costs. This utility model, through the combination of the above-mentioned components, greatly improves the accuracy and reliability of engine assembly, reduces subsequent rework costs, and the modular structural design also facilitates the maintenance and adaptation of the device.
[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A part mistake-proof placement device in the assembly process of a Yuchai engine, characterized by: The device includes a main body (1), which includes a base (2), a part error prevention and limiting device (3), a support device (4), a part assembly (5), and a sensor mounting device (6). The part error prevention and limiting device (3) is provided in two sets, and the two sets of the part error prevention and limiting device (3) are installed on the top of the base (2) by screws. The two sets of the part error prevention and limiting device (3) are distributed symmetrically. The support device (4) is provided in one set, and the support device (4) is installed on the top of the base (2) by screws. The sensor mounting device (6) is installed on the top of the base (2) and located on the side of the part error prevention and limiting device (3). The part assembly (5) is installed on the two sets of part error prevention and limiting devices (3) and located above the support device (4). The part anti-misalignment limiting device (3) includes a mounting base (7) and a limiting cylinder (8). The mounting base (7) and the limiting cylinder (8) are smoothly transitioned and integrally formed. The mounting base (7) is located at the bottom of the limiting cylinder (8). The limiting cylinder (8) has a cylindrical structure. A limiting installation groove (9) is opened at the top of the limiting cylinder (8). The limiting installation groove (9) has a cylindrical structure. An installation notch (20) is opened on the inner side of the limiting cylinder (8). The installation notch (20) and the limiting installation groove (9) are through-type structures. Sensor detection holes (10) are opened on both the left and right sides of the limiting cylinder (8). The front and rear ends of the mounting base (7) have an arc-shaped structure. Two sets of fixing holes (11) are symmetrically distributed on the surface of the mounting base (7).
2. The part mistake-proof placement device in the assembly process of Yuchai engine according to claim 1, characterized in that: The support device (4) has a T-shaped structure. The support device (4) includes a support column (12) and a mounting block (13). The support column (12) and the mounting block (13) are smoothly transitioned and integrally formed. The support column (12) has a rectangular structure. The mounting block (13) is provided in a set, and the set of mounting blocks (13) is located at the bottom left end and the bottom right end of the support column (12). The bottom of the support column (12) is provided with a weight reduction groove (14). The surfaces of the support column (12) and the mounting block (13) are provided with fixing holes (11).
3. The part mistake proofing device for Yuchai engine assembly process according to claim 1, characterized in that: The sensor mounting device (6) has an L-shaped structure. The sensor mounting device (6) includes a base block (15) and a support block (16). The base block (15) and the support block (16) are smoothly transitioned and integrally formed. The support block (16) is located at the top inner end of the base block (15). A set of locking holes (19) are opened on the surface of the base block (15). The sensor mounting slot (18) is opened on the surface of the support block (16). The sensor mounting slot (18) has a long groove structure.
4. The part mistake proofing device for Yuchai engine assembly process according to claim 3, characterized in that: A part position detection sensor (17) is mounted on the sensor mounting slot (18) by a nut, and the part position detection sensor (17) is directly opposite the sensor detection hole (10).
