An engine ignition coil tightening device

CN224600977UActive Publication Date: 2026-08-07GAC TOYOTA ENGINE CO LTD
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Patent Information

Application Number
CN202521581701.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-28
Publication Date
2026-08-07
Estimated Expiration
2035-07-28

AI Technical Summary

Technical Problem

[0003]这种拧紧方式,由于发动机在滚道上流动的过程中,需要人手取电枪对准螺栓并完全套入,且还需要双手配合作业等多种因素要求,导致需要高技能作业者来操作,品质保证度低,无法满足总装线0.3%的异常率要求

Benefits of technology

[0017] This invention discloses an engine ignition coil tightening device. Compared with the prior art, its advantages are as follows: By movably locating a fastening mechanism on the top of the frame and correspondingly locating a positioning mechanism, the fastening mechanism includes a mounting plate connected to the frame. An electric gun fixing plate is located at the lower end of the mounting plate, and an electric gun is movably mounted on the electric gun fixing plate. Simultaneously, a pressing mechanism is movably mounted on the electric gun fixing plate corresponding to the electric gun. When an ignition coil needs to be installed on the engine, after the engine is moved into position via a transmission line, the fastening mechanism moves, causing the pressing mechanism to press the ignition coil. Then, the electric gun is aligned with the bolt of the ignition coil, and the bolt is inserted through a reverse function. Finally, the bolt is tightened by rotating the bolt forward. This achieves automatic tightening of the ignition coil, avoiding various defects of manual operation and ensuring engine quality.

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Abstract

The utility model relates to the technical field of engine, disclose a kind of engine ignition coil tightening device, including frame and pressing mechanism, the top of the frame is laterally movably equipped with fastening mechanism, the fastening mechanism includes the mounting plate of connection frame, the lower end of the mounting plate is equipped with electric gun fixed plate, electric gun is equipped on the electric gun fixed plate and can be lifted, the pressing mechanism is correspondingly equipped on the electric gun mounting plate and can be lifted;It further includes positioning mechanism, the positioning mechanism is correspondingly equipped on the frame with the fastening mechanism.When needing to install ignition coil to engine, after engine is moved to position by transmission line, fastening mechanism moves, and makes pressing mechanism to compress ignition coil, then electric gun aims at the bolt of ignition coil, is inserted bolt by reversing function, finally positive rotation is tightened bolt, to realize the automatic tightening of ignition coil, avoid the various defects of manual operation, ensure the quality of engine.
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Description

Technical Field

[0001] This utility model relates to the field of engine technology, and in particular to an engine ignition coil tightening device. Background Technology

[0002] During engine manufacturing, ignition coils need to be installed. Currently, the bolts of the engine ignition coils are tightened manually. The operator holds an electric gun in one hand, aligns it with the bolt, fully inserts the gun, and then uses the other hand to press the ignition coil firmly before activating the electric gun to tighten the bolt.

[0003] This tightening method requires highly skilled operators due to various factors, such as the need for a manual electric gun to align and fully insert the bolts while the engine is moving on the raceway, and the need for both hands to work together. This results in low quality assurance and fails to meet the 0.3% defect rate requirement of the final assembly line. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an engine ignition coil tightening device, which realizes automatic tightening of the ignition coil and ensures the quality of the engine.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] An engine ignition coil tightening device includes a frame and a clamping mechanism. The top of the frame is provided with a fastening mechanism that can be moved laterally. The fastening mechanism includes a mounting plate connected to the frame. The lower end of the mounting plate is provided with an electric gun fixing plate. An electric gun is provided on the electric gun fixing plate that can be raised and lowered. The clamping mechanism is provided on the electric gun fixing plate in a raised and lowered manner corresponding to the electric gun.

[0007] It also includes a positioning mechanism, which is mounted on the frame corresponding to the fastening mechanism.

[0008] Preferably, the top of the frame is provided with a mounting beam, a linear motor is provided on the mounting beam, and the mounting plate is connected to the slider of the linear motor.

[0009] Preferably, the mounting plate is provided with a slide rail arranged in a vertical direction, a sliding block is slidably connected on the slide rail, the electric gun fixing plate is connected to the sliding block, and a drive cylinder is provided on one side of the slide rail on the mounting plate, the extension rod of the drive cylinder is connected to the electric gun fixing plate.

[0010] Preferably, one end of the electric gun fixing plate is provided with a support plate, and the support plate is provided with a switch cylinder corresponding to the button of the electric gun.

[0011] Preferably, the clamping mechanism includes lifting components disposed on both sides of the electric gun fixing plate, and the lower ends of the two lifting components are connected to clamping blocks.

[0012] Preferably, the positioning mechanism includes a coarse positioning mechanism located at one end of the frame and a precision positioning mechanism located on one side of the frame.

[0013] Preferably, the coarse positioning mechanism includes a first mounting base fixed to the top of the frame, a first positioning cylinder is provided on the first mounting base, a baffle is provided on the telescopic rod of the first positioning cylinder, and an elastic stop block is provided on the baffle.

[0014] Preferably, the precision positioning mechanism includes a second mounting base fixed to the top of the frame, a second positioning cylinder is provided on the second mounting base, a positioning pin mounting plate is provided on the telescopic rod of the second positioning cylinder, and positioning pins are respectively provided at both ends of one side of the positioning pin mounting plate.

[0015] Preferably, the device includes a displacement mechanism located inside one side of the frame. The displacement mechanism includes a third mounting base fixed to the frame, a displacement cylinder mounted on the third mounting base, and a top block mounted on the telescopic rod of the displacement cylinder.

[0016] Preferably, the system includes a controller, and the fastening mechanism, the positioning mechanism, and the shifting mechanism are all electrically connected to the controller.

[0017] This invention discloses an engine ignition coil tightening device. Compared with the prior art, its advantages are as follows: By movably locating a fastening mechanism on the top of the frame and correspondingly locating a positioning mechanism, the fastening mechanism includes a mounting plate connected to the frame. An electric gun fixing plate is located at the lower end of the mounting plate, and an electric gun is movably mounted on the electric gun fixing plate. Simultaneously, a pressing mechanism is movably mounted on the electric gun fixing plate corresponding to the electric gun. When an ignition coil needs to be installed on the engine, after the engine is moved into position via a transmission line, the fastening mechanism moves, causing the pressing mechanism to press the ignition coil. Then, the electric gun is aligned with the bolt of the ignition coil, and the bolt is inserted through a reverse function. Finally, the bolt is tightened by rotating the bolt forward. This achieves automatic tightening of the ignition coil, avoiding various defects of manual operation and ensuring engine quality. Attached Figure Description

[0018] Figure 1 This is a side view of the engine ignition coil tightening device of this utility model.

[0019] Figure 2 This is an isometric view of the engine ignition coil tightening device of this utility model.

[0020] Figure 3 This is an isometric view of the fastening mechanism of this utility model.

[0021] Figure 4 This is an isometric view of the fastening mechanism of this utility model from another perspective.

[0022] Figure 5 This is a schematic diagram of the coarse positioning mechanism of this utility model.

[0023] Figure 6 This is a schematic diagram of the precise positioning mechanism of this utility model.

[0024] Figure 7 This is a schematic diagram of the displacement mechanism of this utility model.

[0025] The components are: 1-frame, 2-fastening mechanism, 21-mounting plate, 22-electric gun fixing plate, 23-electric gun, 24-slide rail, 25-drive cylinder, 26-support plate, 27-switching cylinder, 3-mounting beam, 4-linear motor, 5-lifting component, 6-pressing block, 7-coarse positioning mechanism, 71-first mounting seat, 72-first positioning cylinder, 73-baffle, 74-elastic stop block, 8-precision positioning mechanism, 81-second mounting seat, 82-second positioning cylinder, 83-positioning pin mounting plate, 84-positioning pin, 9-shifting mechanism, 91-third mounting seat, 92-shifting cylinder, 93-top block, 10-controller, 100-engine. Detailed Implementation

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0029] like Figure 1-2As shown, a preferred embodiment of the present invention provides an engine ignition coil tightening device, comprising a frame and a clamping mechanism. An engine 100 is conveyed via a conveyor line, passing through the interior of the frame 1 during the conveying process. A fastening mechanism 2 is provided on the top of the frame 1, movably laterally (in the same direction as the conveyor line). The fastening mechanism 2 includes a mounting plate 21 connected to the frame 1. An electric gun fixing plate 22 is provided at the lower end of the mounting plate 21. An electric gun 23 is movably mounted on the electric gun fixing plate 22. The clamping mechanism is movably mounted on the electric gun fixing plate 22 corresponding to the electric gun 23. Specifically, the clamping mechanism includes lifting members 5 on both sides of the electric gun fixing plate 22. A clamping block 6 is connected to the lower end of the two lifting members 5. During clamping, the fastening mechanism 2 moves, causing the clamping block 6 to move downwards, thereby clamping the ignition coil. The fastening mechanism 2 then moves further downward, causing the bolt connecting the electric gun 23 to the ignition coil to be compressed. Therefore, the lifting component 5 can be a buffer rod, a damper, or similar device. Alternatively, the lifting component 5 can be a combination of a sleeve and a rod, with a spring fitted onto the rod. The two ends of the spring abut against the end faces of the clamping block 6 and the sleeve, respectively. This ensures that the lifting component 5 does not interfere with the downward movement of the electric gun 23 during the bolt connection process, and also ensures that the clamping block 6 always exerts a clamping force on the ignition coil.

[0030] The engine ignition coil tightening device also includes a positioning mechanism, which is mounted on the frame 1 corresponding to the fastening mechanism 2, and is used to position the engine 100 to ensure that the fastening mechanism 2 can accurately correspond to the ignition coil.

[0031] In addition, it also includes a controller 10. The fastening mechanism 2 and the positioning mechanism are both electrically connected to the controller 10, thereby achieving automation through the controller. Combined with the existing electric gun 23, it not only has a simple structure, but also has fewer failures during use, which can reduce defects in the assembly line process.

[0032] The engine ignition coil tightening device based on the above technical features has a fastening mechanism 2 that can be moved laterally on the top of the frame 1, and a positioning mechanism corresponding to the fastening mechanism 2. The fastening mechanism 2 includes a mounting plate 21 connected to the frame 1. The lower end of the mounting plate 21 is provided with an electric gun fixing plate 22. An electric gun 23 is movably mounted on the electric gun fixing plate 22. At the same time, a pressing mechanism is movably mounted on the electric gun fixing plate 22 corresponding to the electric gun 23. When it is necessary to install the ignition coil on the engine 100, after the engine 100 is moved into place by the transmission line, the fastening mechanism 2 moves and the pressing mechanism presses the ignition coil. Then, the electric gun 23 is aligned with the bolt of the ignition coil, and the bolt is inserted through the reverse function. Finally, the bolt is tightened by rotating forward, thereby realizing the automatic tightening of the ignition coil, avoiding various defects of manual operation, and ensuring the quality of the engine 100.

[0033] like Figure 3-4 As shown, in this embodiment, the top of the frame 1 is provided with a mounting beam 3, and a linear motor 4 is provided on the mounting beam 3. The mounting plate 21 is connected to the slider of the linear motor 4, thereby driving the lateral movement of the fastening mechanism 2 through the linear motor 4. The mounting plate 21 is provided with a slide rail 24 arranged in the vertical direction, and a sliding block is slidably connected on the slide rail 24. The electric gun fixing plate 22 is connected to the sliding block. A drive cylinder 25 is provided on one side of the mounting plate 21 located on the slide rail 24, and the extension rod of the drive cylinder 25 is connected to the electric gun fixing plate 22. Thus, the electric gun 23 is driven to rise and fall through the drive cylinder 25, and the movement accuracy of the electric gun 23 is ensured by the cooperation of the slide rail 24 and the sliding block. Meanwhile, to ensure the normal switching of the electric gun 23, a support plate 26 is provided at one end of the electric gun fixing plate 22. A switch cylinder 27 is provided on the support plate 26 corresponding to the button of the electric gun. When the electric gun 23 needs to be turned on, the switch cylinder 27 is activated to drive the button of the electric gun 23; when it needs to be stopped, the switch cylinder 27 retracts to disengage it from the button of the electric gun 23.

[0034] Since the engine 100 moves on the conveyor line throughout the production process, the positioning mechanism is required to ensure that the electric gun 23 can be accurately aligned with the ignition coil. Specifically, the positioning mechanism includes a coarse positioning mechanism 7 located at one end of the frame 1 and a precision positioning mechanism 8 located on one side of the frame 1. First, the coarse positioning mechanism 7 is used to achieve coarse positioning so that the engine 100 stops moving. Then, the precision positioning mechanism 8 positions the engine 100 to ensure the accuracy of the engine 100's position.

[0035] like Figure 5-6As shown, the coarse positioning mechanism 7 includes a first mounting base 71 fixed to the top of the frame 1. A first positioning cylinder 72 is mounted on the first mounting base 71, and a baffle 73 is mounted on the telescopic rod of the first positioning cylinder 72. An elastic stop block 74 is mounted on the baffle 73. The precision positioning mechanism 8 includes a second mounting base 81 fixed to the top of the frame 1. A second positioning cylinder 82 is mounted on the second mounting base 81, and a positioning pin mounting plate 83 is mounted on the telescopic rod of the second positioning cylinder 82. Positioning pins 83 are respectively mounted at both ends of one side of the positioning pin mounting plate 83. When the engine 100 is being conveyed, the first positioning cylinder 72 descends first. When the outer wall of the engine 100 abuts against the elastic stop block 74, the engine conveyor line stops operating. Then the second positioning cylinder drives the positioning pin 83 to descend and engage with the positioning hole on the engine 100. If the two positioning pins 83 are completely aligned with the positioning hole on the engine 100, the fastening mechanism 2 moves down to tighten the ignition coil. If the positioning pins 83 cannot be completely aligned with the positioning hole on the engine 100, the position of the engine 100 needs to be adjusted.

[0036] like Figure 7 As shown, when adjusting the position of engine 100, the lateral position of engine 100 can be directly adjusted by moving the engine conveyor line. However, the adjustment of its longitudinal position (since each process in the entire engine production process has a positioning mechanism, its longitudinal position basically does not need adjustment) requires a corresponding structure for adjustment. Specifically, the engine ignition coil tightening device also includes a shifting mechanism 9 located on one side inside the frame 1. The shifting mechanism 9 includes a third mounting base 91 fixed on the frame 1. The third mounting base 91 is equipped with a shifting cylinder 92. The telescopic rod of the shifting cylinder 92 is equipped with a top block 93. When it is necessary to adjust the longitudinal position of engine 100, the shifting cylinder 92 only needs to drive the top block 93 to apply force to the side of engine 100 (generally, only a small position needs to be moved. Engine 100 is supported on a tray, so when driven, the tray of engine 100 moves relative to the conveyor line, while engine 100 does not move relative to the tray). For convenient adjustment, the shifting mechanism 9 is electrically connected to the controller 10.

[0037] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. An engine ignition coil tightening device, characterized in that: The device includes a frame and a clamping mechanism. The top of the frame is provided with a fastening mechanism that can be moved laterally. The fastening mechanism includes a mounting plate that connects to the frame. The lower end of the mounting plate is provided with an electric gun fixing plate. An electric gun is provided on the electric gun fixing plate that can be raised and lowered. The clamping mechanism is provided on the electric gun fixing plate in a raised and lowered manner corresponding to the electric gun. It also includes a positioning mechanism, which is mounted on the frame corresponding to the fastening mechanism.

2. The engine ignition coil tightening device as described in claim 1, characterized in that: The top of the frame is provided with a mounting beam, on which a linear motor is mounted, and the mounting plate is connected to the slider of the linear motor.

3. The engine ignition coil tightening device as described in claim 1, characterized in that: The mounting plate is provided with a slide rail arranged in a vertical direction, and a sliding block is slidably connected on the slide rail. The electric gun fixing plate is connected to the sliding block. A drive cylinder is provided on one side of the slide rail on the mounting plate, and the extension rod of the drive cylinder is connected to the electric gun fixing plate.

4. The engine ignition coil tightening device as described in claim 1, characterized in that: One end of the electric gun mounting plate is provided with a support plate, and a switch cylinder is provided on the support plate corresponding to the button of the electric gun.

5. The engine ignition coil tightening device as described in claim 1, characterized in that: The clamping mechanism includes lifting components located on both sides of the electric gun fixing plate, and clamping blocks are connected to the lower ends of the two lifting components.

6. The engine ignition coil tightening device as described in any one of claims 1-5, characterized in that: The positioning mechanism includes a coarse positioning mechanism located at one end of the frame and a precision positioning mechanism located on one side of the frame.

7. The engine ignition coil tightening device as described in claim 6, characterized in that: The coarse positioning mechanism includes a first mounting base fixed to the top of the frame, a first positioning cylinder on the first mounting base, a baffle on the telescopic rod of the first positioning cylinder, and an elastic stop block on the baffle.

8. The engine ignition coil tightening device as described in claim 6, characterized in that: The precise positioning mechanism includes a second mounting base fixed to the top of the frame, a second positioning cylinder on the second mounting base, a positioning pin mounting plate on the telescopic rod of the second positioning cylinder, and positioning pins on both ends of one side of the positioning pin mounting plate.

9. The engine ignition coil tightening device as described in any one of claims 1-5, characterized in that: The device includes a displacement mechanism located inside one side of the frame. The displacement mechanism includes a third mounting base fixed to the frame. The third mounting base is provided with a displacement cylinder, and the telescopic rod of the displacement cylinder is provided with a top block.

10. The engine ignition coil tightening device as described in claim 9, characterized in that: The device includes a controller, and the fastening mechanism, the positioning mechanism, and the shifting mechanism are all electrically connected to the controller.