Single-stud air bag restraint system gas generator on-line detection tool

Abstract

The utility model discloses an on-line detection tool for a single-stud safety airbag gas generator, and aims to provide the on-line detection tool for the single-stud safety airbag gas generator, which has the advantages that the detection efficiency is improved, the precision is low, and the use convenience is improved. The device comprises a fixed base which is provided with a workpiece groove; the fixed base is connected with a guide assembly, and the supporting frame is movably connected with the guide assembly; the rotating plate is arranged above the workpiece groove, the rotating plate is rotationally connected with the supporting frame, the rotating plate is provided with a jacking column and a detection block, the jacking column is movably connected with the rotating plate, and the jacking column is movably connected with the rotating plate through the jacking column; the fixing block and the detection block are provided with mounting holes, the fixing block is detachably connected with one side of the mounting hole, the fixing block is provided with a feeding port and is communicated with the mounting hole, the other side of the mounting hole is detachably connected with a fixing base, and the fixing base is connected with a first spring. The beneficial effects of the utility model are that convenient and rapid detection of a single screw is realized; the detection efficiency is improved, and the detection comprehensiveness and precision are high.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of air bag inflator production, especially a single stud air bag inflator online detection tool. BACKGROUND

[0002] The shell of the air bag inflator usually needs to be welded with a stud, so as to facilitate the installation of the air bag inflator and the vehicle body. During the welding process, the stud and the shell of the air bag inflator may have a virtual welding condition, and the welding quality of the stud may vary. If virtual welding occurs, the connecting column of the stud and the shell of the air bag inflator is prone to breakage during the actual installation process when the nut is tightened. Such an air bag inflator is a defective product. In order to improve product quality and prevent defective products from flowing out, the torsional resistance of the welded stud usually needs to be detected.

[0003] Chinese patent authorization announcement number: CN 106198254U, authorization announcement date: January 29, 2019, the application proposes a kind of air bag inflator shell stud detection tool, including bottom plate, vertical plate perpendicular to bottom plate, mechanical clamp arm for air bag inflator positioning is equipped on bottom plate, motor, torsion sensor, main shaft are sequentially equipped from top to bottom on vertical plate, the lower end of main shaft is equipped with sliding sleeve, the lower end of sliding sleeve is connected with torsion transmission shaft, sliding sleeve and main shaft, torsion transmission shaft between circumferential limit, axial sliding, the lower end of torsion transmission shaft is fixed with screw sleeve, support plate is equipped at the place of torsion transmission shaft on vertical plate, guide sleeve is equipped on support plate, torsion transmission shaft coaxially passes through guide sleeve, iron magnet piece is fixed on torsion transmission shaft, annular electromagnet is equipped at the upper end outside of torsion transmission shaft on vertical plate, torsion transmission shaft passes through annular electromagnet, controller is equipped on vertical plate, motor, torsion sensor, annular electromagnet are all connected with controller. The technical scheme has the following disadvantages: the structure and detection mode of the device are complex, which leads to the decrease of efficiency and accuracy, and the matching degree is low during use, which is not convenient for single stud use.

[0004] In summary, the existing stud detection tool has the disadvantages of low detection efficiency and precision, and inconvenience for use. Utility model content

[0005] The utility model is to overcome the deficiencies of low detection efficiency and precision and inconvenience for use in the prior art, and provides a single stud air bag inflator online detection tool that improves detection efficiency and precision and improves use convenience.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A single stud air bag inflator online detection tool, comprising

[0008] The fixed base is provided with a workpiece groove;

[0009] The support frame is movably connected with the guide assembly;

[0010] The rotating plate is arranged above the workpiece groove and is rotatably connected with the support frame, and the rotating plate is provided with a top column and a detection block, the top column is movably connected with the rotating plate, and the detection block is movably connected with the rotating plate through the top column;

[0011] The fixed block is detachably connected with one side of the mounting hole, the fixed block is provided with a feeding port and is in communication with the mounting hole, the other side of the mounting hole is detachably connected with a fixed seat, and the fixed seat is connected with a spring.

[0012] The fixed base positions and places the workpiece single screw column airbag gas generator through the workpiece groove, so that the workpiece is positioned and placed; the support frame is movably connected with the fixed base through the guide assembly, the detection block on the support frame is precisely connected with the single screw column of the airbag gas generator on the workpiece groove through the feeding port by moving, so that the single screw rod enters the feeding port of the fixed block, and the detection block applies a torsional force to the workpiece by moving on the rotating plate and pressing the moving detection block, so that the detection is realized by rotating the rotating plate, the single screw rod is uniformly stressed and detected at each welding point, and the rapid detection is realized, the detection is comprehensive, time and labor are saved; the fixed block is detachably connected with the mounting hole of the detection block, so as to replace the fixed block after the feeding port is damaged or old, and the detection accuracy is ensured; the fixed seat is connected with the spring and buffers the contact with the workpiece and protects the workpiece. The single screw rod is conveniently and rapidly detected, the detection efficiency is improved, the detection is comprehensive, the accuracy is high, the spare parts are convenient to replace, and the service life of the tool is prolonged.

[0013] As preferred, the guide assembly comprises a guide rod one and a guide cylinder, the fixed base is connected with a telescopic mechanism one, the support frame is connected with the telescopic mechanism one, the support frame is provided with a guide hole three, one end of the guide rod one is connected with the guide hole three, the guide cylinder is connected with the fixed base, and the other end of the guide rod one is inserted into the guide cylinder. The support frame is driven to move up and down by the telescopic mechanism one connected with the fixed base, and the butt joint of the tool and the workpiece is automated, the guide rod one is inserted into the guide cylinder to stably move the support frame up and down and has a guiding function. The automation degree and the operation accuracy are improved.

[0014] As preferred, the rotating plate is provided with a sliding hole, the detection block is provided with a linkage rod, one end of the linkage rod is connected with the detection block, the other end of the linkage rod is movably connected with one end of the top column through the sliding hole, the sliding hole is connected with a guide rod two, the linkage rod is provided with a guide hole one, and the guide rod two is inserted into the guide hole one. The sliding hole has a width greater than the width of the linkage rod, so that the linkage rod can move transversely in the sliding hole, thereby driving the detection block to move to realize the torsional pulling of the workpiece, and the guide rod two improves the connection and movement stability of the linkage rod. The effect of improving the structural assembly and operation stability is achieved.

[0015] As preferred, the sliding hole is provided with a spring two, the spring two is sleeved with the guide rod two, one end of the spring two is connected with the sliding hole, and the other end of the spring two is connected with the linkage rod. The sliding hole is connected with the spring two, so that the linkage rod is compressed after moving under the force of the top column, and the linkage rod and the detection block are guaranteed in the original position without manual resetting or confirmation after the force is removed, so as to facilitate the next docking of the workpiece. The effect of improving the operation accuracy and efficiency is achieved.

[0016] As preferred, the support frame is connected with a rotating mechanism, the rotating mechanism is connected with a fixed column, the fixed column is connected with the rotating plate, one end of the top column is provided with a insertion hole, the fixed column is inserted into the insertion hole, the other end of the top column is provided with a guide inclined surface, the guide inclined surface is provided with a limiting groove matched with the linkage rod. The fixed column is driven by the driving force of the rotating mechanism to rotate through the connection with the rotating mechanism, thereby driving the rotating plate to rotate, the top column is inserted into the fixed column through the insertion hole, so that the up-down moving top column switches between abutting against or leaving the linkage column mode, the guide inclined surface on the top column facilitates the abutting against of the linkage column to make the pushing process more smooth, and the limiting groove on the guide inclined surface prevents the misalignment of the top column and the linkage column. The effects of improving the operation smoothness and improving the contact accuracy are achieved.

[0017] As preferred, the rotating plate is provided with a guide rod three, and the top column is provided with a guide hole two, and the guide rod three is inserted into the guide hole two. The guide rod three on the rotating plate further improves the cooperation accuracy of the top column and the linkage column. The effect of further enhancing the operation accuracy is achieved.

[0018] As preferred, the rotating plate is connected with a support frame, the support frame is connected with a second telescopic mechanism, the second telescopic mechanism is connected with a connecting rod, the top column is inserted with a mounting block, the connecting rod is connected with the mounting block, the mounting block is bolted with a fixed nut, and the fixed nut is arranged on both sides of the top column. The second telescopic mechanism is connected on the rotating plate through the support frame, the top column is fixedly connected with the connecting rod as a whole through the mounting block, the fixed nut guarantees the up-down movement of the top column driven by the second telescopic mechanism to switch the contact state with the linkage column, and the damaged or old top column is convenient to replace. The effects of further improving the degree of automation and detection accuracy are achieved.

[0019] As preferred, the fixing base is provided with a limiting pressing plate, the groove wall of the workpiece groove is provided with a sliding groove and a locking groove, one end of the limiting pressing plate is inserted with the sliding groove, and the other end of the limiting pressing plate is movably connected with the locking groove. The workpiece installed on the workpiece groove is further locked through the limiting pressing plate on the fixing base, and the shell of the airbag gas generator is inserted into the workpiece groove and is docked with the locking groove by moving the limiting pressing plate in the sliding groove, so that the workpiece is prevented from moving on the workpiece groove and affecting the detection of the single screw rod. The effects of improving assembly efficiency and detection result reliability are achieved.

[0020] The utility model discloses the beneficial effect is: realize single screw rod convenient and fast detection;Improve detection efficiency, detection comprehensive and high accuracy;It is convenient to replace accessory and prolong tooling service life;Structure assembly and operation stability;Improve the degree of automation and operation accuracy;Improve assembly efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the utility model's perspective view;

[0022] Figure 2 It is Figure 1 Sectional view of

[0023] Figure 3 It is Figure 2 Enlarged view of A in

[0024] In the drawing: 1. Fixed base, 2. Workpiece groove, 3. Support frame, 4. Turnover board, 5. Top column, 6. Detection block, 7. Fixed block, 8. Inlet, 9. Fixed base, 10. Spring one, 11. Guide rod one, 12. Guide cylinder, 13. Telescopic mechanism one, 14. Slide hole, 15. Linkage rod, 16. Guide rod two, 17. Spring two, 18. Rotary mechanism, 19. Fixed column, 20. Guide inclined plane, 21. Limiting recess, 22. Guide rod three, 23. Bracket, 24. Telescopic mechanism two, 25. Mounting block, 26. Connecting rod, 27. Fixed nut, 28. Limiting pressing plate, 29. Sliding groove, 30. Locking groove, 31. Mounting plate, 32. Fixed bolt. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0026] It is to be understood that the terminology used herein is for the purpose of describing

[0027] The relative arrangement of parts, numerical expressions, and numerical values set forth in the examples are not intended to limit the scope of the present application unless specifically so stated. Spatially relative terms, such as "upper", "lower", "left", "right", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device described herein is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. It will also be understood that, when a part is referred to as being "connected" to or "coupled" to another part, it can be directly connected or coupled to the other part or intervening parts can be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. It will be understood that, although the terms "first", "second", etc. can be used herein to describe various elements or steps, these elements or steps should not be limited by these terms since such elements or steps are only to be distinguished in terms of the order of execution. It will be understood that when a component is referred to as being "configured to" perform a task or process, it can be understood that the component is "configured to" perform the task or process, but is not necessarily directly capable of doing so, but can be capable of doing so when activated, for example, by software.

[0028] In addition, it should be noted that the use of "first", "second", and the like, terminology to describe components does not constitute a limitation on the scope of the present application unless otherwise stated. Thus, the terms "first", "second", and the like, are used to distinguish different components from each other, but do not otherwise limit the scope of the present application. Embodiments

[0029] As Figure 1 , 3As shown, a single stud airbag gas generator online detection tool, including fixed base 1, fixed base 1 is provided with workpiece groove 2; support frame 3, fixed base 1 is connected with guide assembly, support frame 3 and guide assembly moving connection; rotating plate 4, rotating plate 4 is placed above the workpiece groove 2, rotating plate 4 and support frame 3 rotationally connected, rotating plate 4 is equipped with top column 5 and detection block 6, top column 5 and rotating plate 4 movably connected, detection block 6 is movably connected with rotating plate 4 through top column 5; fixed block 7, detection block 6 is provided with mounting hole, fixed block 7 is detachably connected with one side of the mounting hole, fixed block 7 is provided with feed port 8 and is communicated with the mounting hole, the other side of the mounting hole is detachably connected with fixed seat 9, and fixed seat 9 is connected with spring 10.

[0030] As shown in Figure 1 , the guide assembly includes guide rod 11 and guide cylinder 12, fixed base 1 is connected with telescopic mechanism 13, support frame 3 is connected with telescopic mechanism 13, support frame 3 is provided with guide hole three, one end of guide rod 11 is connected with guide hole three, guide cylinder 12 is connected with fixed base 1, the other end of guide rod 11 is inserted into guide cylinder 12.

[0031] As shown in Figure 2 , 3 , rotating plate 4 is provided with sliding hole 14, detection block 6 is provided with linkage rod 15, one end of linkage rod 15 is connected with detection block 6, the other end of linkage rod 15 is movably connected with one end of top column 5 through sliding hole 14, sliding hole 14 is connected with guide rod 16, linkage rod 15 is provided with guide hole 1, guide rod 16 is inserted into guide hole 1.

[0032] As shown in Figure 3 , sliding hole 14 is provided with spring 17, spring 17 is sleeved with guide rod 16, one end of spring 17 is connected with sliding hole 14, the other end of spring 17 is connected with linkage rod 15.

[0033] As shown in Figure 2 , 3 , support frame 3 is connected with rotating mechanism 18, rotating mechanism 18 is connected with fixed column 19, fixed column 19 is connected with rotating plate 4, one end of top column 5 is provided with insertion hole, fixed column 19 is inserted into insertion hole, the other end of top column 5 is provided with guide inclined surface 20, guide inclined surface 20 is provided with limiting groove 21, limiting groove 21 is matched with linkage rod 15.

[0034] As shown in Figure 3 , rotating plate 4 is provided with guide rod 22, top column 5 is provided with guide hole 2, guide rod 22 is inserted into guide hole 2.

[0035] As shown in Figure 2As shown, the rotating plate 4 is connected with a support 23, the support 23 is connected with a second telescopic mechanism 24, the second telescopic mechanism 24 is connected with a connecting rod 26, the top column 5 is inserted with a mounting block 25, the connecting rod 26 is connected with the mounting block 25, the mounting block 25 is bolted with a fixing nut 27, and the fixing nut 27 is arranged on both sides of the top column 5.

[0036] As shown in the figure, Figure 1 As shown, the fixed base 1 is provided with a limiting pressing plate 28, the groove wall of the workpiece groove 2 is provided with a sliding groove 29 and a locking groove 30, one end of the limiting pressing plate 28 is inserted with the sliding groove 29, and the other end of the limiting pressing plate 28 is movably connected with the locking groove 30.

[0037] As shown in the figure, Figures 1-3 As shown: the support frame 3 is connected with a mounting plate 31, the mounting plate 31 is connected with the rotating mechanism 18, and the mounting plate 31 and the support frame 3 are connected with a fixing bolt 32, so that the rotating mechanism 18 can be stably connected and supported below the connected structure, and the structural stability is improved.

[0038] The size of the workpiece groove 2 is based on the size of the stud shell of the airbag gas generator, and after the stud shell of the airbag gas generator is inserted into the workpiece groove 2, the shell cannot be moved by the movement of the limiting pressing plate 28.

[0039] The opening end face of the feeding port 8 is chamfered to make the workpiece more smoothly inserted.

[0040] The first telescopic mechanism 13 and the second telescopic mechanism 24 are the existing technology of the cylinder structure, the rotating mechanism 18 is the existing technology of the rotating motor structure, and the spring 10 and the spring 18 are the existing technology of the spring structure.

[0041] In use: insert the single stud airbag gas generator shell to be detected into the workpiece groove 2, and move the limiting pressing plate 28 on the sliding groove 29 to insert into the locking groove 30 to lock the shell. Start the first telescopic mechanism 13 to make the support frame 3 descend, and then the feeding port 8 of the fixing block 7 moves towards the single screw to be detected, until the single screw is inserted into the feeding port 8, and then stop moving, start the second telescopic mechanism 24, make the top column 5 move down to push the linkage rod 15, make the linkage rod 15 drive the detection block 6 to move outward to exert a certain torque on the single screw, start the rotating mechanism 18, make the rotating plate 4 rotate to make the detection block 6 exert a torque on the single screw for a whole circle, detect whether the whole circle welding point of the single screw is virtual welding, and if the single screw does not fall off from the gas generator shell under the torque, the welding quality is qualified, otherwise, the single screw welding is unqualified, and the welding quality detection of the single screw and the shell is completed.

[0042] The above examples are only used to illustrate the technical solutions of the present application, and are not limiting; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features therein can be replaced by equivalents; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the present application embodiments.

Claims

1. An online testing fixture for a single-stud airbag gas generator, characterized in that, include Fixed base (1), the fixed base (1) is provided with workpiece groove (2); The support frame (3) is connected to the fixed base (1) with a guide component, and the support frame (3) is movably connected to the guide component; Rotating plate (4), the rotating plate (4) is placed above the workpiece groove (2), the rotating plate (4) is rotatably connected to the support frame (3), the rotating plate (4) is provided with a top column (5) and a detection block (6), the top column (5) is movably connected to the rotating plate (4), and the detection block (6) is movably connected to the rotating plate (4) through the top column (5); The fixing block (7) has a mounting hole, the detection block (6) is detachably connected to one side of the mounting hole, the fixing block (7) has a feed inlet (8) and is connected to the mounting hole, the other side of the mounting hole is detachably connected to a fixing seat (9), and the fixing seat (9) is connected to a spring (10).

2. The online testing fixture for a single-stud airbag gas generator according to claim 1, characterized in that, The guiding assembly includes a guide rod (11) and a guide cylinder (12). The fixed base (1) is connected to a telescopic mechanism (13). The support frame (3) is connected to the telescopic mechanism (13). The support frame (3) is provided with a guide hole (3). One end of the guide rod (11) is connected to the guide hole (3). The guide cylinder (12) is connected to the fixed base (1). The other end of the guide rod (11) is inserted into the guide cylinder (12).

3. The online testing fixture for a single-stud airbag gas generator according to claim 2, characterized in that, The rotating plate (4) is provided with a sliding hole (14), the detection block (6) is provided with a linkage rod (15), one end of the linkage rod (15) is connected to the detection block (6), the other end of the linkage rod (15) passes through the sliding hole (14) and is movably connected to one end of the top column (5), the sliding hole (14) is connected to a guide rod two (16), the linkage rod (15) is provided with a guide hole one, and the guide rod two (16) is inserted into the guide hole one.

4. The online testing fixture for a single-stud airbag gas generator according to claim 3, characterized in that, The sliding hole (14) is provided with a second spring (17), which is sleeved with a second guide rod (16). One end of the second spring (17) is connected to the sliding hole (14), and the other end of the second spring (17) is connected to the linkage rod (15).

5. An online testing fixture for a single-stud airbag gas generator according to claim 1 or 4, characterized in that, The support frame (3) is connected to a rotating mechanism (18), the rotating mechanism (18) is connected to a fixed column (19), the fixed column (19) is connected to the rotating plate (4), one end of the top column (5) is provided with an insertion hole, the fixed column (19) is inserted into the insertion hole, the other end of the top column (5) is provided with a guide slope (20), the guide slope (20) is provided with a limiting groove (21), the limiting groove (21) is adapted to the linkage rod (15).

6. The online testing fixture for a single-stud airbag gas generator according to claim 3, characterized in that, The rotating plate (4) is provided with a guide rod three (22), and the top column (5) is provided with a guide hole two. The guide rod three (22) is inserted into the guide hole two.

7. The online testing fixture for a single-stud airbag gas generator according to claim 5, characterized in that, The rotating plate (4) is connected to a bracket (23), the bracket (23) is connected to a telescopic mechanism (24), the telescopic mechanism (24) is connected to a connecting rod (26), the top column (5) is inserted with an installation block (25), the connecting rod (26) is connected to the installation block (25), the installation block (25) is bolted with a fixing nut (27), and the fixing nut (27) is placed on both sides of the top column (5).

8. The online testing fixture for a single-stud airbag gas generator according to claim 1, characterized in that, The fixed base (1) is provided with a limiting pressure plate (28), and the groove wall of the workpiece groove (2) is provided with a sliding groove (29) and a locking groove (30). One end of the limiting pressure plate (28) is inserted into the sliding groove (29), and the other end of the limiting pressure plate (28) is movably connected to the locking groove (30).

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