Airbag gas generator and wire harness protection sleeve assembly tooling

Abstract

The utility model provides a kind of air bag gas generator and wire harness protective sleeve assembly tool, including operation platform, assembly component and press-fitting component;The operation platform includes horizontal support surface;The assembly component includes base, first support column, and the first clamping unit and second clamping unit being set along the first support column extension direction, the first clamping unit is for clamping gas generator, the second clamping unit is for clamping wire harness protective sleeve, and make wire harness protective sleeve and the press-fitting axis of gas generator coincide;The press-fitting component includes the second support column being set to the base, the slide rail being set to the second support column, the sliding block being connected with the slide rail sliding, and the pressure head being connected with the sliding block, the extension direction of the slide rail is parallel with the press-fitting axis, when the sliding block moves along slide rail, drive the pressure head linear advance along the axis, wire harness protective sleeve is press-fitted to the wire harness end of gas generator.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment manufacturing, specifically to a tooling for an airbag gas generator and a wire harness protection kit. Background Technology

[0002] In the field of automotive safety systems, the assembly of the airbag gas generator and the wiring harness protective sleeve is a crucial step in the final assembly process. Currently, this assembly process mainly relies on manual operation by workers. The specific procedure is as follows: first, the operator manually aligns the wiring harness protective sleeve with the designated end of the gas generator, and then uses hand strength to directly press the wiring harness protective sleeve into the gas generator.

[0003] This assembly method, which relies entirely on manual labor, has several inherent drawbacks. First, regarding assembly quality, because it depends entirely on the operator's subjective feeling and physical strength, uneven force or improper angles can easily lead to incomplete assembly or incorrect relative angles between the wire harness protective sleeve and the gas generator. More importantly, improper force application can easily cause the flexible wire harness protective sleeve to be squeezed, deformed, or even damaged, directly affecting the product's safety and reliability. Second, in terms of operational efficiency and cost, manual assembly is cumbersome, slow, and inefficient. On a fast-paced production line, fatigue or negligence can easily lead to omissions or appearance defects. Once such problems occur, they often directly result in the scrapping of high-value assembly parts, leading to a high scrap rate and significantly increasing product manufacturing costs, making it difficult to meet customers' strict requirements for production efficiency and cost control. Furthermore, this repetitive operation requiring continuous physical exertion violates ergonomic principles, and prolonged operation can easily lead to operator fatigue and even musculoskeletal injuries, posing certain assembly safety risks.

[0004] Therefore, there is an urgent need in this field for a special tooling that can replace manual operation and achieve precise, efficient and reliable assembly in order to overcome the various shortcomings of the prior art.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this utility model, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0006] To address the problems in the prior art, this utility model provides an assembly tooling for an airbag gas generator and a wiring harness protection kit, including an operating table, an assembly assembly, and a pressing assembly.

[0007] The operating table includes a horizontal support surface;

[0008] The assembly assembly includes a base disposed on the horizontal support surface, a first support column disposed on the base, and a first clamping unit and a second clamping unit disposed along the extending direction of the first support column. The first clamping unit is used to clamp the gas generator, and the second clamping unit is used to clamp the wire harness protective sleeve and make the wire harness protective sleeve coincide with the press-fit axis of the gas generator.

[0009] The pressing assembly includes a second support column disposed on the base, a slide rail disposed on the second support column, a slider slidably connected to the slide rail, and a pressing head connected to the slider. The extension direction of the slide rail is parallel to the pressing axis. When the slider moves along the slide rail, it drives the pressing head to advance linearly along the axis, pressing the wire harness protective sleeve to the wire harness end of the gas generator.

[0010] According to some embodiments of the present invention, the assembly fixture further includes a driving component, which is connected to the slider and drives the slider to move along the slide rail.

[0011] According to some embodiments of the present invention, the driving component is a cylinder, and the end of the piston rod of the cylinder is connected to the slider.

[0012] According to some embodiments of the present invention, the first clamping unit includes two opposing first clamping plates, and the first clamping plates are provided with grooves. When the first clamping unit clamps the gas generator, the grooves are used to support the studs of the gas generator.

[0013] According to some embodiments of the present invention, the assembly fixture further includes a contact sensor and a status indicator light;

[0014] The contact sensor is used to detect the state of the groove;

[0015] The status indicator light is electrically connected to the contact sensor and is used to indicate whether the first clamping unit is clamping the gas generator based on the signal from the contact sensor.

[0016] According to some embodiments of the present invention, the assembly assembly further includes a limiting ring groove adapted to one end of the gas generator, the limiting ring groove being disposed on the base.

[0017] According to some embodiments of the present invention, the press-fitting assembly further includes a connecting unit;

[0018] The connecting unit includes a connecting plate, a slot, and a positioning pin that are connected to the slider.

[0019] The slot is disposed on the surface of the connecting plate facing the assembly component;

[0020] The non-working end of the pressure head is engaged in the slot and is positioned and connected to the non-working end by the positioning pin passing through the connecting plate.

[0021] According to some embodiments of the present invention, the press-fitting assembly further includes an operating handle disposed on the connecting plate.

[0022] According to some embodiments of the present invention, the operating table further includes a vertical support surface for mounting a lighting unit and an indicator light system.

[0023] The assembly fixture of this invention has a simple structure and is easy to operate, avoiding the low efficiency of manual assembly and the high scrap rate of assembled parts. Attached Figure Description

[0024] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings.

[0025] Figure 1 This is a schematic diagram of the structure of the airbag gas generator and the wiring harness protection kit before assembly according to an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the assembly tooling for an airbag gas generator and a wiring harness protection kit according to an embodiment of the present invention;

[0027] Figure 3 This is a partial structural schematic diagram of the assembly tooling for the airbag gas generator and wiring harness protection kit according to an embodiment of the present invention.

[0028] Figure 4 This is a partial structural diagram of the assembly unit of the assembly tooling according to an embodiment of the present invention, when assembling the airbag gas generator and the wire harness protective sleeve.

[0029] Figure 5 This is a top view of the airbag gas generator and wiring harness protection kit assembled according to an embodiment of the present invention. Detailed Implementation

[0030] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted.

[0031] In the description of this utility model, it should be understood that 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. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] 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, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and settings are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or settings discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0034] The following description, in conjunction with the accompanying drawings and specific embodiments, further elaborates on the tooling for the airbag gas generator and wiring harness protection kit of this utility model. It should be understood that the various specific embodiments are not intended to limit the scope of protection of this utility model.

[0035] This utility model provides a tooling assembly for an airbag gas generator and a wiring harness protection kit. Figure 1This is a schematic diagram of the structure of an airbag gas generator and a wiring harness protection sleeve before assembly according to an embodiment of the present invention. The gas generator is a core component of the automotive safety system, mainly used in airbags and pre-tensioned seat belt systems, to achieve occupant collision protection by rapidly releasing gas. During a vehicle collision, the gas generator inflates the airbag and deploys to protect the passenger's safety. The gas generator 9 includes a housing 91 and at least one stud 92 disposed on one side of the housing 91. The stud is used for positioning and connecting with the upper or lower cover plate of the airbag. A combustible gas-generating agent is placed inside the housing. One end of the housing is a wiring harness end 93, used to connect to the vehicle's electronic control unit (ECU). During operation, the ECU sends a signal, which enters the detonation assembly through the wiring harness, directly igniting the propellant and generating high-pressure gas that is discharged from the exhaust port of the gas generator body into the airbag. The wiring harness protection sleeve 8 is made of insulating material and includes a connecting part 81 connected to the wiring harness end, and a fastening member 82 and a fastening cover 83 disposed on the opposite end of the connecting part 81 of the wiring harness end. When the airbag gas generator is assembled with the wiring harness protection kit, the connecting part 81 is interference-fitted with the wiring harness end 93 of the gas generator 9.

[0036] Figure 2 This is a schematic diagram of the assembly fixture for an airbag gas generator and wiring harness protection kit according to an embodiment of the present invention. Specifically, the assembly fixture includes an operating table, an assembly assembly, and a pressing assembly. The operating table includes a horizontal support surface 11.

[0037] Figure 3 for Figure 1 A partial structural diagram of the assembly fixture within the dashed box. The assembly assembly includes a base 21 disposed on a horizontal support surface, a first support column 22 disposed on the base 21, and a first clamping unit 23 disposed along the extending direction of the first support column 22 (see...). Figure 3 (Elliptical dashed frame) and a second clamping unit, the first clamping unit is used to clamp the gas generator 9, and the second clamping unit is used to clamp the wire harness protective sleeve 8, and to make the wire harness protective sleeve 8 coincide with the press-fit axis of the gas generator 9. Figure 4 This is a partial structural diagram of the assembly unit of the assembly fixture when assembling the airbag gas generator and the wire harness protective sleeve. It should be noted that the base 21 and the horizontal support surface 11 can be integrated. They are described separately here to illustrate that the base and the assembly and pressing components on it can be detachably connected to the operating table. In practice, for ease of assembly and disassembly, mechanical handles 2111 can be provided on both sides of the base 21, which will not be elaborated here.

[0038] Figure 3In one embodiment, the first clamping unit 23 includes two opposing first clamping plates 231, and the first clamping plates 231 are provided with grooves 2311. When the first clamping unit 23 clamps the gas generator 9, the two first clamping plates 231 clamp the housing 91, and the grooves 2311 are used to support the studs 92 of the gas generator 9. Figure 4 When both first clamping plates 231 have contact sensors in their grooves 2311, the first clamping plates 231 where the studs 92 are placed can be adjusted according to the relative angle between the gas generator and the wire harness protective sleeve.

[0039] The assembly fixture may also include a contact sensor (not shown in the figure) and a status indicator 29. The contact sensor is disposed in the groove 2311 to detect the pressure or positioning status of the groove. The status indicator is electrically connected to the contact sensor to indicate whether the first clamping unit clamps the gas generator according to the signal from the contact sensor.

[0040] To improve the stability of the first clamping unit 23 when clamping the gas generator 9, the assembly may also include a limiting ring groove 232 adapted to one end of the gas generator 9, and the limiting ring groove 232 is disposed on the base 21.

[0041] The second clamping unit may include two opposing second clamping plates 24. During assembly, the fastener 82 of the wire harness protective sleeve 8 is placed between the two second clamping plates 24, and at the same time, one end of the connecting part 81 abuts against the wire harness end 93 of the gas generator 9.

[0042] The press-fit assembly includes a second support column 31 mounted on the base 21, a slide rail (not shown in the figure) mounted on the second support column 31, a slider 32 slidably connected to the slide rail, and a press head 33 connected to the slider 32. The working end of the press head 33 (the end in contact with one end of the wire harness protective sleeve 8) adopts a contour-following design, allowing it to fit well with one end of the wire harness protective sleeve 8 during press-fitting. The extension direction of the slide rail is parallel to the press-fitting axis. When the slider moves along the slide rail, it drives the press head to advance linearly along the axis, pressing the wire harness protective sleeve to the wire harness end of the gas generator. The slider 32 and the slide rail structure together ensure the accuracy and stability of the vertical movement of the press head 33 connected to it.

[0043] In some embodiments, the assembly fixture further includes a drive component connected to the slider and driving the slider to move up and down along the slide rail. The drive component can be a cylinder, with the end of the cylinder's piston rod connected to the slider. The assembly fixture controls the pressure head via the cylinder, causing the wire harness protective sleeve to press down, thus better controlling the force and angle of the force applied to the wire harness protective sleeve. Through the contour design of the clamped portion (fastening cover 83) of the wire harness protective sleeve and the first clamping unit holding the gas generator, the relative angle between the wire harness protective sleeve and the gas generator is made correct and consistent.

[0044] In other embodiments, the press-fit assembly may further include a connecting unit. The connecting unit includes a connecting plate 341 connected to the slider 32, a slot 342, and a positioning pin 343. The slot 342 is disposed on the surface of the connecting plate 341 facing the assembly assembly. The non-working end of the press head 33 can be positioned along the slot 342, and the positioning pin 343 penetrates the connecting plate 341 to achieve a positioning connection with the non-working end. That is, in the above embodiments, the press head 33 is detachably connected to the slider through the connecting unit, thereby allowing the press head to be replaced according to the structure of the connection part 81 of the wire harness protective sleeve and the contact point between the press head and the wire harness protective sleeve, improving the applicability of the assembly tooling of this utility model.

[0045] In addition, the press assembly also includes an operating handle 344 provided on the connecting plate 341 to facilitate the press operation by the operator.

[0046] Of course, the control panel may also include a vertical support surface 12 for mounting lighting units 3 and status indicator lights, etc. The assembly fixture may also be equipped with a storage box 4 for storing wire harness protective sleeves. The storage box 4 can be connected to the horizontal support surface 11 by studs. This design facilitates the removal of wire harness protective sleeves during assembly.

[0047] The structure of this invention is further illustrated below by using the assembly tooling of the airbag gas generator and the wire harness protective sleeve. The assembly method includes the following steps:

[0048] The operator opens the positioning pin 343, installs the designated pressure head 33 in the slot 342, and then uses the positioning pin 343 to fix the pressure head 33.

[0049] The housing 91 of the gas generator 9 is placed between two first clamping plates 231, and its stud 92 is placed in the groove 2311 on the designated side, with its bottom inserted into the limiting ring groove 232.

[0050] The wire harness protective sleeve 8 is placed above the end face of the wire harness end 93 of the gas generator 9, and the two second clamping plates 24 clamp the fastener 82.

[0051] The cylinder drives the slider 32 downwards, and the pressure head 33 connected to the slider moves downwards together until the pressure head 33 contacts the wire harness protective sleeve 8. The pressure head 33 continues to move downwards until the wire harness protective sleeve 8 is completely fitted onto the wire harness end 93 of the gas generator 9. The continuous force of the cylinder ensures that the wire harness protective sleeve is completely pressed into the gas generator. After maintaining this position for several seconds, the cylinder drives the pressure head 33 back to its initial position. Assembly is complete. Remove the finished product. Figure 5 Guided by the assembly fixture of the airbag gas generator and the wire harness protective sleeve of this utility model, the wire harness protective sleeve is ensured to remain intact during the assembly process.

[0052] It should be noted that in the technical solution of the airbag gas generator and wiring harness protection kit of this utility model, each functional module and module unit can correspond to the specific hardware circuit in the integrated circuit structure. Therefore, it only involves the improvement of the specific hardware circuit. The hardware part is not merely a carrier for executing control software or computer programs. Therefore, solving the corresponding technical problem and obtaining the corresponding technical effect does not involve the application of any control software or computer programs. In other words, this utility model can solve the technical problem and obtain the corresponding technical effect by simply using the improvements in the hardware circuit structure involved in these modules and units, without the need for specific control software or computer programs to achieve the corresponding function.

[0053] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

[0054] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A tooling assembly for an airbag gas generator and a wiring harness protection kit, characterized in that, Includes control panel, assembly components, and press-fit components; The operating table includes a horizontal support surface; The assembly assembly includes a base disposed on the horizontal support surface, a first support column disposed on the base, and a first clamping unit and a second clamping unit disposed along the extending direction of the first support column. The first clamping unit is used to clamp the gas generator, and the second clamping unit is used to clamp the wire harness protective sleeve and make the wire harness protective sleeve coincide with the press-fit axis of the gas generator. The pressing assembly includes a second support column disposed on the base, a slide rail disposed on the second support column, a slider slidably connected to the slide rail, and a pressing head connected to the slider. The extension direction of the slide rail is parallel to the pressing axis. When the slider moves along the slide rail, it drives the pressing head to advance linearly along the axis, pressing the wire harness protective sleeve to the wire harness end of the gas generator.

2. The tooling for assembling the airbag gas generator and wiring harness protection kit according to claim 1, characterized in that, It also includes a drive unit, which is connected to the slider and drives the slider to move along the slide rail.

3. The tooling for assembling the airbag gas generator and wiring harness protection kit according to claim 2, characterized in that, The driving component is a cylinder, and the end of the piston rod of the cylinder is connected to the slider.

4. The tooling for assembling the airbag gas generator and wiring harness protection kit according to claim 1, characterized in that, The first clamping unit includes two opposing first clamping plates, and the first clamping plates are provided with grooves. When the first clamping unit clamps the gas generator, the grooves are used to support the studs of the gas generator.

5. The tooling for assembling the airbag gas generator and wiring harness protection kit according to claim 4, characterized in that, It also includes a contact sensor and status indicator lights; The contact sensor is used to detect the state of the groove; The status indicator light is electrically connected to the contact sensor and is used to indicate whether the first clamping unit is clamping the gas generator based on the signal from the contact sensor.

6. The tooling for assembling the airbag gas generator and wiring harness protection device according to claim 1, characterized in that, The assembly also includes a limiting ring groove adapted to one end of the gas generator, the limiting ring groove being disposed on the base.

7. The tooling for assembling the airbag gas generator and wiring harness protection kit according to claim 1, characterized in that, The press-fitting assembly also includes a connecting unit; The connecting unit includes a connecting plate, a slot, and a positioning pin that are connected to the slider. The slot is disposed on the surface of the connecting plate facing the assembly component; The non-working end of the pressure head is engaged in the slot and is positioned and connected to the non-working end by the positioning pin passing through the connecting plate.

8. The tooling for assembling the airbag gas generator and wiring harness protection kit according to claim 7, characterized in that, The press-fit assembly also includes an operating handle disposed on the connecting plate.

9. The tooling for assembling the airbag gas generator and wiring harness protection kit according to claim 1, characterized in that, The control panel also includes a vertical support surface for mounting lighting units and indicator light systems.

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