A mold for assembling parts of a press response mechanism

By designing molds for a foolproof mechanism and a toggle assist device, the problem of insufficient assembly precision of the pressing mechanism components was solved, enabling real-time detection and error warning, improving assembly efficiency and reducing rework costs.

CN121776863BActive Publication Date: 2026-05-19ZHU TIAN WU XI JING MI CHONG YA JIAN YOU XIAN GONG SI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHU TIAN WU XI JING MI CHONG YA JIAN YOU XIAN GONG SI
Filing Date
2026-02-26
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

In the existing technology, it is difficult to guarantee the assembly accuracy of the components of the pressing mechanism, which leads to frequent assembly errors, long rework time, low production efficiency, and easy damage to components during the rework process.

Method used

Design a mold that includes a foolproof mechanism and a toggle assist device. Real-time detection and error warning are achieved through mechanical alignment design. The position of the plug-in block is adjusted by the foolproof mechanism and the toggle assist device to ensure assembly accuracy.

Benefits of technology

It enables real-time detection and error warning of assembly accuracy, reduces assembly errors, lowers rework costs and quality risks, and improves assembly efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a kind of mould for press mechanism parts assembly, it is related to the technical field of automobile parts assembly, including: lower mould and the upper mould being set above the lower mould, the inside of the lower mould is placed with automobile accessory, the upper mould will insert piece assembly to the inside of the automobile accessory;Foolproof mechanism is located in one side of the lower mould, for detecting the position of the insert piece assembly, the foolproof mechanism includes the connecting sleeve inserted in the inside of the lower mould, the inside of the connecting sleeve is slidably connected with foolproof rod.The application is equipped with foolproof mechanism, and the mechanical alignment design of the foolproof mechanism is realized in the mould Real-time detection and error warning of assembly accuracy, completely solve the pain point of traditional assembly "judgment by experience, difficult to find wrong loading" staff can immediately identify assembly error, avoid misaligned parts to flow into next process, reduce subsequent rework cost and quality risk from the source.
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Description

Technical Field

[0001] This invention relates to the field of automotive parts assembly technology, specifically a mold for assembling components of a clapper mechanism. Background Technology

[0002] As a key auxiliary component of the core connector module of the intelligent driving domain controller, the assembly accuracy of the button mechanism directly affects the signal transmission stability between the domain controller and various sensors such as LiDAR, millimeter-wave radar, and cameras. This button mechanism component needs to be precisely matched with the "high-density pin header + cylindrical signal terminal" structure of the domain controller connector module. The corresponding assembly area has a high terminal density (30-60 terminals per module) and a pin diameter of only 1.0-1.2mm. Furthermore, the assembly gap between the button mechanism and the pin header / terminal is extremely small; even a slight offset (>0.2mm) can cause the mating between the button mechanism and the terminal / pin header to fail, leading to core assembly problems such as "pin hole misalignment" in the domain controller.

[0003] Meanwhile, the audible button mechanism needs to be installed in enclosed spaces such as the cabin floor or trunk along with the domain controller, where surrounding pipelines are dense and the assembly operation space is limited. The domain controller plug-in module adopts a "floating pin socket" design to absorb vehicle vibrations, which requires the audible button mechanism to be synchronously positioned with the pin socket and terminals during assembly. Otherwise, the triggering accuracy of the audible button mechanism will be insufficient, and it will be unable to effectively feedback the terminal insertion status, further increasing the risk of missed or incorrect insertion.

[0004] In the traditional assembly mode, the assembly of the pressing mechanism with the pin holder and terminal relies on manual operation. Even with the assistance of a magnifying glass, problems such as assembly misalignment of the pressing mechanism and misalignment with the terminal pin holder are prone to occur due to the small size of the parts and the inconsistent assembly positioning benchmarks. Moreover, due to the lack of dedicated assembly molds, it is impossible to achieve synchronous and accurate positioning of the pressing mechanism, pin holder and terminal. Manual insertion and removal adjustments will also cause the pin holder to shift, further deteriorating the assembly accuracy.

[0005] If the button mechanism is misassembled, it will not only lead to misalignment of the domain controller terminals (according to data from a smart driving solution provider, 53% of domain controller assembly defects are due to misalignment of terminals, with a significant proportion indirectly caused by misassembly of the button mechanism), but also require the removal of the domain controller's fixing bolts and the disconnection of all surrounding wiring harnesses before the module can be removed and reassembled with the button mechanism, terminals, and pin headers. Rework time per unit exceeds 2 hours. During rework, the delicate pin header structure is easily damaged (a single pin header set costs over 800 yuan), with 27% of pin header damage caused by rework. Furthermore, reassembly requires complex processes such as sensor calibration and data transmission testing, severely impacting production line cycle time.

[0006] Specifically, there are three major pain points in the assembly process of the button mechanism components: First, the assembly target point of the button mechanism is small, and the precision requirements for the fit with the terminal pin seat are high. Even a slight deviation (>0.2mm) will lead to failure of the fit. Traditional manual assembly, which relies on a magnifying glass for assistance, is still prone to misalignment and omissions. Second, due to the "floating pin seat" design of the domain controller, manual assembly of the button mechanism is prone to causing the pin seat to shift. Traditional assembly tools cannot achieve synchronous positioning of the button mechanism, pin seat, and terminal. Third, disassembly and rework after incorrect assembly of the button mechanism can easily cause bending of the pin seat pins and damage to the button mechanism itself. After reassembly, multiple rounds of performance testing are required, which seriously drags down production efficiency. To address these issues, this invention provides a mold for assembling button mechanism components, specifically solving the problems of inaccurate positioning, low assembly efficiency, and high rework losses in the assembly process of the button mechanism. Summary of the Invention

[0007] The purpose of this invention is to provide a mold for assembling components of a button mechanism, in order to solve the problem that assembly errors are easily generated during the terminal assembly process, and a lot of time is wasted in the rework process, thereby reducing the overall assembly efficiency.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a mold for assembling components of a pressing mechanism, comprising: a lower mold and an upper mold disposed above the lower mold, wherein an automotive part is placed inside the lower mold, and a connector is assembled into the inner side of the automotive part by the upper mold; a foolproof mechanism located on one side of the lower mold for detecting the position of the connector after assembly, the foolproof mechanism comprising a connecting sleeve inserted into the inner side of the lower mold, a foolproof rod slidably connected to the inner side of the connecting sleeve, and a connector block rotatably connected to the bottom of the connector via a damping shaft; a toggle auxiliary device disposed on the connector block and the foolproof rod for toggle the position of the connector block; and a alignment auxiliary device located inside the foolproof rod for adjusting the position of the connector block.

[0009] As a further embodiment of the present invention: the anti-mistake mechanism further includes an anti-mistake hole formed inside the plug block, and a connecting spring is installed between the anti-mistake rod and the connecting sleeve.

[0010] As a further embodiment of the present invention: the toggle assist includes a rotating shaft rotatably connected to the inner side of the anti-fool rod, a rotating wheel is fixedly connected to the outer wall of the rotating shaft, a plurality of second helical teeth are fixedly connected to the outer wall of the rotating wheel, and a circular groove is formed on the outer wall of the plug block, a plurality of first helical teeth are fixedly connected to the outer wall of the circular groove.

[0011] As a further embodiment of the present invention: a plurality of second helical teeth are distributed at equal intervals around the outer wall of the rotating wheel, and the distance between any two second helical teeth is greater than the diameter of the first helical tooth.

[0012] As a further embodiment of the present invention: the actuating aid includes a worm gear fixedly connected to the outer wall of the rotating shaft, a worm is engaged on one side of the worm gear, a power rod is provided at one end of the worm, and one end of the power rod extends through to the outside of the connecting sleeve and is slidably connected to the connecting sleeve.

[0013] As a further embodiment of the present invention: the alignment auxiliary component includes four calibration rods disposed on the outside of the anti-fool rod, the inner side of the anti-fool rod is provided with a groove, a second rectangular rod is fixedly connected to one side of the calibration rod, and one end of the second rectangular rod extends through to the inner side of the groove, a ring is fixedly connected to the outer wall of the second rectangular rod, an auxiliary spring is installed between the ring and the groove, and a roller is rotatably connected to the bottom of the second rectangular rod.

[0014] As a further embodiment of the present invention: the alignment auxiliary component further includes a first rectangular rod fixedly connected to the inner side of the groove, the outer wall of the first rectangular rod is slidably connected to a conical block and a pulling rod, and the conical block is fixedly connected to the pulling rod, and the four rollers abut against the outer side of the conical block.

[0015] As a further embodiment of the present invention: the power rod is rotatably connected to the pull rod, a rectangular block is fixedly connected to one end of the power rod, a connecting groove matching the rectangular block is opened on the inner side of the worm gear, and a power spring is installed between the connecting groove and the rectangular block.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. By setting up a mistake-proof mechanism, the mold achieves real-time detection of assembly accuracy and error warning through the mechanical alignment design of the mistake-proof mechanism, which completely solves the pain point of traditional assembly "judging by experience and difficulty in detecting misassembly". Workers can immediately identify assembly errors and prevent misaligned parts from flowing into the next process, reducing subsequent rework costs and quality risks from the source.

[0018] 2. By setting up a toggle auxiliary device, after the workpiece is assembled incorrectly, the position of the plug block can be adjusted to the correct position, eliminating the need for workers to disassemble the mold and reassemble it later, thereby improving the overall practicality of the device.

[0019] 3. By setting up an alignment auxiliary component, after the anti-fool hole is aligned with the anti-fool rod, the front end of the anti-fool rod is inserted into the anti-fool hole under the push of the connecting spring. Then, the operator can pull the power rod to move away from the connecting sleeve, thereby driving the conical block to move synchronously through the pull rod. The conical surface of the outer wall of the conical block pushes four rollers to drive one calibration rod into the anti-fool hole. With the four calibration rods in contact with the anti-fool hole, the position of the plug block that has slightly deviated is calibrated so that its center position is aligned with the anti-fool rod, thereby improving the accuracy of the plug block after adjustment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a cross-sectional view of the present invention;

[0022] Figure 3 This is a schematic diagram of the error-proof mechanism of the present invention;

[0023] Figure 4 This is a schematic diagram of the plug-in block structure of the present invention;

[0024] Figure 5 This is a cross-sectional view of the connecting sleeve of the present invention;

[0025] Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle;

[0026] Figure 7 This is a schematic diagram of the toggle assist device structure of the present invention;

[0027] Figure 8 This is a cross-sectional view of the worm gear of the present invention.

[0028] In the diagram: 1. Lower mold; 2. Upper mold; 3. Automotive part; 4. Connector; 5. Connecting sleeve; 6. Anti-fooling rod; 7. Connecting block; 8. Calibration rod; 9. Rotating wheel; 10. Circular groove; 11. First helical tooth; 12. Anti-fooling hole; 13. Connecting spring; 14. Power rod; 15. Groove; 16. First rectangular rod; 17. Conical block; 18. Pull rod; 19. Worm gear; 20. Rotating shaft; 21. Worm wheel; 22. Second rectangular rod; 23. Auxiliary spring; 24. Ring; 25. Roller; 26. Second helical tooth; 27. Rectangular block; 28. Connecting groove; 29. ​​Power spring. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0031] Please see Figures 1 to 8This embodiment provides a mold for assembling components of a pressing mechanism, including: a lower mold 1 and an upper mold 2 disposed above the lower mold 1. An automotive part 3 is placed inside the lower mold 1, and a connector 4 is assembled into the inner side of the automotive part 3 using the upper mold 2. A foolproof mechanism, located on one side of the lower mold 1, is used to detect the position of the connector 4 after assembly. The foolproof mechanism includes a connecting sleeve 5 inserted into the inner side of the lower mold 1, a foolproof rod 6 slidably connected to the inner side of the connecting sleeve 5, and a connector block 7 rotatably connected to the bottom of the connector 4 via a damping shaft. A toggle auxiliary device is disposed on the connector block 7 and the foolproof rod 6, used to toggle the position of the connector block 7. A straightening auxiliary device is located inside the foolproof rod 6, used to adjust the position of the connector block 7. The foolproof mechanism also includes a foolproof hole 1 formed inside the connector block 7. 2. A connecting spring 13 is installed between the anti-fooling rod 6 and the connecting sleeve 5. The actuating aid includes a rotating shaft 20 rotatably connected to the inner side of the anti-fooling rod 6. A rotating wheel 9 is fixedly connected to the outer wall of the rotating shaft 20. A plurality of second helical teeth 26 are fixedly connected to the outer wall of the rotating wheel 9. A circular groove 10 is opened on the outer wall of the plug block 7. A plurality of first helical teeth 11 are fixedly connected to the outer wall of the circular groove 10. The plurality of second helical teeth 26 are evenly distributed around the outer wall of the rotating wheel 9, and the distance between each pair of second helical teeth 26 is greater than the diameter of the first helical teeth 11. The actuating aid includes a worm gear 21 fixedly connected to the outer wall of the rotating shaft 20. A worm 19 is meshed on one side of the worm gear 21. A power rod 14 is provided at one end of the worm 19, and one end of the power rod 14 extends through to the outside of the connecting sleeve 5 and is slidably connected to the connecting sleeve 5.

[0032] The inner side of the lower mold 1 is provided with a through groove for inserting the connecting sleeve 5, and the through groove is connected to the installation position of the plug-in 4. After the plug-in 4 is installed into the car part 3 through the upper mold 2, the operator can insert the connecting sleeve 5 into the lower mold 1. If the plug-in 4 is inserted correctly, the anti-fool hole 12 is aligned with the connecting sleeve 5, so that the anti-fool rod 6 can be inserted into the anti-fool hole 12 to prevent fooling. If the plug-in 4 is inserted incorrectly, the anti-fool rod 6 encounters resistance during the insertion process, squeezing the connecting spring 13 relative to the sliding, so that the second helical tooth 26 and the first helical tooth 11 abut against each other. Then the operator can rotate the power rod 14, thereby driving the worm wheel 21 through the worm gear 19 to drive the rotating wheel 9 to rotate in a circle through the rotating shaft 20. Then, the second helical tooth 26 moves the first helical tooth 11 to drive the plug-in block 7 to rotate in a circle to adjust its position, so that the anti-fool hole 12 can be aligned with the anti-fool rod 6, thereby adjusting the position of the plug-in 4 after installation. There is no need for the operator to disassemble the mold and reassemble it later, thus improving the overall practicality of the device.

[0033] The mold, through its anti-misalignment mechanism, achieves real-time detection and error warning of assembly accuracy, completely solving the pain point of traditional assembly that relies on experience and makes it difficult to detect misassemblies. After the connector 4 is pressed into the automotive part 3 by the upper mold 2, the worker inserts the connecting sleeve 5 into the through slot of the lower mold 1. If the insertion position is accurate, the anti-misalignment hole 12 is coaxially aligned with the connecting sleeve 5, and the anti-misalignment rod 6 can be smoothly inserted into the anti-misalignment hole 12, completing the physical verification of "assembly qualified". If the connector 4 has problems such as angular offset or misalignment, the anti-misalignment rod 6 will be blocked by the connector block 7 when it is inserted and cannot enter the anti-misalignment hole 12. Through the intuitive feedback of "can be inserted / cannot be inserted", the worker can immediately identify the assembly error and prevent misaligned parts from flowing into the next process, reducing subsequent rework costs and quality risks from the source.

[0034] Please see Figures 3-8 The alignment auxiliary component includes four calibration rods 8 disposed on the outside of the anti-fool rod 6. A groove 15 is provided on the inner side of the anti-fool rod 6. A second rectangular rod 22 is fixedly connected to one side of the calibration rod 8, and one end of the second rectangular rod 22 extends through the inner side of the groove 15. A ring 24 is fixedly connected to the outer wall of the second rectangular rod 22. An auxiliary spring 23 is installed between the ring 24 and the groove 15. A roller 25 is rotatably connected to the bottom of the second rectangular rod 22. The alignment auxiliary component also includes a first rectangular rod 16 fixedly connected to the inner side of the groove 15. A conical block 17 and a pull rod 18 are slidably connected to the outer wall of the first rectangular rod 16, and the conical block 17 and the pull rod 18 are fixedly connected. The four rollers 25 all abut against the outer side of the conical block 17. A power rod 14 is rotatably connected to the pull rod 18. A rectangular block 27 is fixedly connected to one end of the power rod 14. A connecting groove 28 matching the rectangular block 27 is provided on the inner side of the worm gear 19. A power spring 29 is installed between the connecting groove 28 and the rectangular block 27.

[0035] After the anti-fool hole 12 is aligned with the anti-fool rod 6, the front end of the anti-fool rod 6 is inserted into the anti-fool hole 12 under the reset push of the connecting spring 13. Then, the operator can pull the power rod 14 to move away from the connecting sleeve 5, thereby driving the conical block 17 to move synchronously through the pull rod 18. The conical surface of the outer wall of the conical block 17 pushes the four rollers 25 to drive one calibration rod 8 into the anti-fool hole 12. With the four calibration rods 8 in contact with the inside of the anti-fool hole 12, the position of the plug block 7 that has slightly deviated is calibrated so that its center position can be aligned with the anti-fool rod 6, thereby improving the accuracy of the plug block 7 after adjustment.

[0036] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A mold for assembling components of a pressing mechanism, characterized in that, include: The lower mold (1) and the upper mold (2) are arranged above the lower mold (1), the lower mold (1) has an automotive part (3) placed inside it, and the upper mold (2) assembles the connector (4) into the inside of the automotive part (3); The anti-fool mechanism is located on one side of the lower mold (1) and is used to detect the position of the plug-in (4) after assembly. The anti-fool mechanism includes a connecting sleeve (5) inserted into the inner side of the lower mold (1), an anti-fool rod (6) is slidably connected to the inner side of the connecting sleeve (5), and a plug-in block (7) is rotatably connected to the bottom of the plug-in (4) through a damping shaft. A toggle aid is provided on the plug block (7) and the anti-fool rod (6) for toggling the position of the plug block (7). The toggle aid includes a groove (15) and a roller (25). The alignment aid is located inside the anti-fooling rod (6) and is used to adjust the position of the plug block (7); The toggle assist includes a rotating shaft (20) rotatably connected to the inside of the anti-fool rod (6), a rotating wheel (9) is fixedly connected to the outer wall of the rotating shaft (20), a plurality of second helical teeth (26) are fixedly connected to the outer wall of the rotating wheel (9), and a circular groove (10) is opened on the outer wall of the plug block (7), a plurality of first helical teeth (11) are fixedly connected to the outer wall of the circular groove (10). The actuation aid includes a worm gear (21) fixedly connected to the outer wall of the rotating shaft (20). A worm (19) is engaged on one side of the worm gear (21). A power rod (14) is provided at one end of the worm (19), and one end of the power rod (14) extends through to the outside of the connecting sleeve (5) and is slidably connected to the connecting sleeve (5). The alignment aid also includes a first rectangular rod (16) fixedly connected to the inner side of the groove (15). A conical block (17) and a pull rod (18) are slidably connected to the outer wall of the first rectangular rod (16). The conical block (17) and the pull rod (18) are fixedly connected. All four rollers (25) abut against the outer side of the conical block (17). The power rod (14) is rotatably connected to the pull rod (18). A rectangular block (27) is fixedly connected to one end of the power rod (14). A connecting groove (28) matching the rectangular block (27) is opened on the inner side of the worm gear (19). A power spring (29) is installed between the connecting groove (28) and the rectangular block (27).

2. The mold for assembling components of a pressing mechanism according to claim 1, characterized in that, The anti-fool mechanism also includes an anti-fool hole (12) opened inside the plug block (7), and a connecting spring (13) is installed between the anti-fool rod (6) and the connecting sleeve (5).

3. The mold for assembling components of a pressing mechanism according to claim 1, characterized in that, Multiple second helical teeth (26) are distributed at equal distances around the outer wall of the rotating wheel (9), and the distance between any two second helical teeth (26) is greater than the diameter of the first helical tooth (11).

4. The mold for assembling components of a pressing mechanism according to claim 1, characterized in that, The alignment aid includes four calibration rods (8) disposed on the outside of the anti-fool rod (6). The anti-fool rod (6) has a groove (15) on its inner side. A second rectangular rod (22) is fixedly connected to one side of the calibration rod (8), and one end of the second rectangular rod (22) extends through the inner side of the groove (15). A ring (24) is fixedly connected to the outer wall of the second rectangular rod (22). An auxiliary spring (23) is installed between the ring (24) and the groove (15). A roller (25) is rotatably connected to the bottom of the second rectangular rod (22).