Efficient automatic press-fitting device and automatic press-fitting method for pyrotechnic gas generator

Abstract

The application discloses a high-efficiency automatic press-fitting device and method for a pyrotechnic gas generator, and belongs to the technical field of press-fitting devices for pyrotechnic gas generators.The technical scheme is characterized in that: a base is provided with a storage device and a positioning press-fitting seat side by side; a plurality of feeding assembly lines and discharging assembly lines are further arranged on the base; a plurality of feeding mechanical arms are further fixedly arranged on the base; and a cross-connection of the storage device and the positioning press-fitting seat is movably connected to the base based on a screw sliding assembly, so as to realize the feeding, detection and press-fitting of the lower shell, the cartridge, the filter screen and the upper shell of the pyrotechnic gas generator and the automatic press-fitting of the finished pyrotechnic gas generator.The device has the technical effects of simple structure, high production efficiency and low manufacturing cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pyrotechnic gas generator press-fitting device, in particular to a high-efficiency automatic press-fitting device and method for pyrotechnic gas generator. BACKGROUND

[0002] The pyrotechnic gas generator is used in the steering wheel of a car. When the car collides, the gas generator can explode in a very short time to provide a certain amount of gas for the opening of the safety airbag, and plays an extremely important role in the entire safety system of the car. Therefore, the production and installation of the pyrotechnic gas generator require very strict requirements. At present, the production of the gas generator is mostly completed by manual and professional equipment. The manual operation is responsible for the feeding and discharging of the materials. Many human disturbances are generated in the production process, resulting in low production efficiency, poor safety and low automation.

[0003] At present, the Chinese invention with the publication number CN116511876A discloses an automatic press-fitting production equipment for pyrotechnic gas generator, which comprises a controller and driving mechanisms one and two electrically connected with the controller. The driving mechanisms one and two drive the spaced-apart rotating discs one and two to stepwise rotate. A transfer mechanism is arranged between the rotating discs one and two. The automatic press-fitting production equipment further comprises a lower shell and a cartridge feeding mechanism, a lower shell detection mechanism, a lower shell marking mechanism, a cartridge press-fitting mechanism, a filter screen feeding and detection mechanism, a filter screen press-fitting mechanism, an upper end cover feeding and detection mechanism and an upper end cover press-fitting mechanism which are electrically connected with the controller and installed on the rack.

[0004] The existing invention drives the rotating discs one and two to rotate, and the lower shell and cartridge feeding mechanism, the lower shell detection mechanism, the lower shell marking mechanism, the cartridge press-fitting mechanism, the filter screen feeding and detection mechanism, the filter screen press-fitting mechanism and the height measuring mechanism are arranged around the rotating disc one, so as to automatically detect, mark and feed the lower shell, and automatically install the cartridge and filter screen on the lower shell. At the same time, the transfer mechanism can transfer the lower shell with the cartridge and filter screen on the rotating disc one to the rotating disc two. The weighing mechanism, the upper end cover feeding and detection mechanism and the upper end cover press-fitting mechanism are arranged around the rotating disc two, so as to automatically install the upper end cover on the lower shell. Finally, the transfer mechanism automatically discharges. On the one hand, the existing invention needs to sequentially feed and detect the lower shell, cartridge and filter screen, and then press-fits them during the production process of the gas generator. Subsequently, the transfer mechanism transfers the produced semi-finished product to the rotating disc two to feed and detect the upper end cover, and then press-fits it to complete the production of the pyrotechnic gas generator. The production process has many steps, and only one gas generator can be assembled at each step, resulting in low production efficiency. On the other hand, the existing invention has a complex structure and high manufacturing cost, and needs to be improved. SUMMARY

[0005] The first object of the present application is to provide a high-efficiency automatic press-fitting device for a pyrotechnic gas generator, which has the advantages of simple structure, high production efficiency and low manufacturing cost.

[0006] The above technical object of the present application is achieved by the following technical solution: a high-efficiency automatic press-fitting device for a pyrotechnic gas generator, comprising a base; the base is provided with a storage device and a positioning press-fitting seat side by side; the base is also provided with a plurality of feeding lines for respectively conveying a lower shell, a cartridge, a filter screen and an upper shell, and a discharging line for conveying finished pyrotechnic gas generators; a plurality of feeding manipulators are also fixedly arranged on the base and used for clamping and conveying the lower shell, the cartridge, the filter screen and the upper shell from the feeding lines to the storage device; the base is movably connected with a cross-connection of the storage device and the positioning press-fitting seat based on a screw sliding assembly, which is used for realizing the feeding, detection and press-fitting of the lower shell, the cartridge, the filter screen and the upper shell of the pyrotechnic gas generator and can realize the automatic press-fitting of the finished pyrotechnic gas generators.

[0007] The present application is further provided that: the storage device comprises a storage disc rotatably connected to the base and a rotating motor used for driving the storage disc to rotate; the storage disc is coaxially provided with four groups of storage positioning assemblies used for respectively storing the lower shell, the cartridge, the filter screen and the upper shell from the inside to the outside; the storage positioning assemblies are composed of a plurality of storage positioning holes uniformly arranged along the circumferential direction of the storage disc; the number of the storage positioning holes of the four groups of storage positioning assemblies is equal, and each group of the storage positioning assemblies is provided with an even number of the storage positioning holes; the positioning press-fitting seat is uniformly and interval provided with positioning press-fitting holes equal in number to the storage positioning holes along the circumferential direction.

[0008] The present application is further provided that: the automatic press-fitting device comprises a first rotating disc rotatably connected to the screw sliding assembly along the horizontal direction and a first adjusting assembly used for adjusting the relative angle between the first rotating disc and the screw sliding assembly; a plurality of second rotating discs are uniformly and interval rotatably connected to the first rotating disc along the circumferential direction; the first rotating disc is provided with a second adjusting assembly used for synchronously adjusting the second rotating discs; a plurality of press-fitting assemblies, composite visual detection assemblies and flexible clamping assemblies are uniformly and interval arranged on the second rotating discs along the circumferential direction; the press-fitting assemblies, the composite visual detection assemblies and the flexible clamping assemblies are all movably connected to the second rotating discs based on lifting adjusting assemblies.

[0009] The application is further provided with: the first adjusting assembly comprises a first adjusting gear fixedly connected to the first rotating disc on the same axis and a second adjusting gear rotatably connected to the screw sliding assembly, used for cooperating with the first adjusting gear, the screw sliding assembly is fixedly connected with a first adjusting motor used for driving the second adjusting gear, and the tooth number ratio between the first adjusting gear and the second adjusting gear is not less than 2:1.

[0010] The application is further provided with: the second adjusting assembly comprises a third adjusting gear fixedly connected to the first rotating disc on the same axis and a fourth adjusting gear fixedly connected to the second rotating disc and cooperating with the third adjusting gear for transmission, and the screw sliding assembly is fixedly connected with a second adjusting motor used for driving the third adjusting gear to rotate.

[0011] The application is further provided with: the lifting adjusting assembly comprises a lifting adjusting electric cylinder fixedly connected to the second rotating disc along the vertical direction and a lifting mounting base fixedly connected to the telescopic end of the lifting adjusting electric cylinder, and the pressing assembly, the composite visual detection assembly and the flexible clamping assembly are all fixedly connected to the lifting mounting base.

[0012] The application is further provided with: the pressing assembly is provided with three groups, respectively used for pressing the medicine box, the filter screen into the lower shell and used for pressing the upper shell to the upper shell, the pressing assembly comprises a servo press fixedly connected to the lifting mounting base and a pressing head fixedly connected to the servo press, used for matching the pressing requirements of the medicine box, the filter screen and the upper shell.

[0013] The application is further provided with: the flexible clamping assembly comprises a synchronous clamping air cylinder fixedly connected to the lifting mounting base and a flexible clamping block fixedly connected to the clamping end of the synchronous clamping air cylinder.

[0014] The application is further provided with: the first rotating disc is provided with half or equal number of the second rotating discs of the storage positioning holes, each group of the storage positioning assemblies is provided with at least 4 storage positioning holes and at most 8 storage positioning holes.

[0015] The second object of the application is to provide a high-efficiency automatic pressing method for a pyrotechnic gas generator, which has the advantages of simple structure, high production efficiency and low manufacturing cost.

[0016] The above technical objects of the application are achieved by the following technical solutions: a high-efficiency automatic pressing method for a pyrotechnic gas generator, which applies a high-efficiency automatic pressing device for a pyrotechnic gas generator as described in any of the above technical solutions; comprising:

[0017] Step 1, the lower shell, the medicine box, the filter screen and the upper shell are conveyed on the feeding assembly line respectively, and the feeding manipulator places the lower shell, the medicine box, the filter screen and the upper shell into the storage positioning holes of the storage positioning assembly respectively;

[0018] Step 2, the screw sliding assembly drives the automatic press-fitting device to move to the upper end of the storage device so that the first rotating disc coincides with the axis of the storage disc, in the sliding process, the second adjusting assembly adjusts the relative position of the flexible clamping assembly and the second rotating disc by adjusting the rotation angle of the second rotating disc, so that the flexible clamping assembly clamps the components of the pyrotechnic gas generator in different storage positioning assemblies, and at the same time, the first adjusting assembly adjusts the relative position between the first rotating disc as a whole and the storage disc, so that the flexible clamping assembly is aligned with the storage positioning hole to realize accurate clamping of the components, when the distance between the flexible clamping assembly and the axis of the first rotating disc is the largest, the flexible clamping assembly is used to clamp the components in the outermost storage positioning assembly of the storage disc, when the distance between the flexible clamping assembly and the axis of the first rotating disc is the smallest, the flexible clamping assembly is used to clamp the components in the innermost storage positioning assembly of the storage disc, and when the distance between the flexible clamping assembly and the axis of the first rotating disc is between the maximum value and the minimum value, the flexible clamping assembly is used to clamp the components between the outermost and innermost storage positioning assemblies of the storage disc;

[0019] Step 3, the flexible clamping assembly first clamps the lower shell from the storage seat into the positioning and press-fitting hole of the positioning and press-fitting seat, and then the first adjusting assembly and the second adjusting assembly cooperate to adjust the positions of the first rotating disc and the second rotating disc, so that the medicine box on the storage disc is clamped into the lower shell located in the positioning and press-fitting hole;

[0020] Step 4, the first adjusting assembly and the second adjusting assembly cooperate to adjust the composite visual detection assembly and the press-fitting assembly for press-fitting the medicine box into the lower shell to be located above the positioning and press-fitting hole in sequence, after visual detection, the lifting adjusting assembly drives the press-fitting assembly to press-fit the medicine box into the lower shell;

[0021] Step 5, step 2 is repeated to clamp the filter screen from the storage seat into the medicine box located in the positioning and press-fitting hole, and then step 4 is repeated;

[0022] Step 6, step 2 is repeated to clamp the upper shell from the storage seat into the upper shell located in the positioning and press-fitting hole, and then step 4 is repeated to complete the finished product press-fitting of the pyrotechnic gas generator;

[0023] Step 7, the flexible clamping assembly clamps the finished product pyrotechnic gas generator, the screw sliding assembly drives the finished product pyrotechnic gas generator to move to the discharging assembly line to complete the discharging of the finished product pyrotechnic gas generator, and step 1 is repeated.

[0024] In summary, the present application has the following advantages:

[0025] 1. The storage equipment is arranged by setting a plurality of layers of storage positioning assemblies on the storage base and a plurality of sets of feeding assembly lines and feeding manipulators on the base, and the lower shell, the cartridge, the filter screen and the upper shell are respectively conveyed on the feeding assembly line, and the feeding manipulator places the lower shell, the cartridge, the filter screen and the upper shell into the storage positioning holes of the storage positioning assemblies respectively, so as to complete the arrangement and storage of the components of the pyrotechnic gas generator, and an automatic press-fitting assembly is arranged, which includes a first rotating disc and a second rotating disc assembly arranged uniformly along the circumferential direction of the first rotating disc, and a plurality of press-fitting assemblies, composite visual detection assemblies and flexible clamping assemblies are integrated uniformly along the circumferential direction of the second rotating disc, when the lower shell, the cartridge, the filter screen and the upper shell placed in the storage positioning holes of the storage positioning assemblies need to be moved into the positioning and press-fitting holes of the positioning and press-fitting base, the relative position of the flexible clamping assembly and the second rotating disc is adjusted by adjusting the rotation angle of the second rotating disc, so as to realize clamping of the components of the pyrotechnic gas generator in different storage positioning assemblies, when the distance between the flexible clamping assembly and the axis of the first rotating disc is the largest, the flexible clamping assembly is used to clamp the components in the outermost storage positioning assembly of the storage disc, when the distance between the flexible clamping assembly and the axis of the first rotating disc is the smallest, the flexible clamping assembly is used to clamp the components in the innermost storage positioning assembly of the storage disc, and when the distance between the flexible clamping assembly and the axis of the first rotating disc is between the maximum value and the minimum value, the flexible clamping assembly is used to clamp the components between the outermost and innermost storage positioning assemblies of the storage disc, and the first adjusting assembly adjusts the relative position between the whole first rotating disc and the storage disc, so that the flexible clamping assembly is aligned with the storage positioning hole to realize accurate clamping of the components, on the one hand, the process of press-fitting the components of the pyrotechnic gas generator only includes transporting a plurality of components of the pyrotechnic gas generator into corresponding positioning and press-fitting holes, and then the first adjusting assembly and the second adjusting assembly are adjusted in turn to realize adjustment of the composite visual detection assembly and the corresponding step press-fitting assembly to the upper side of the positioning and press-fitting hole, and after visual detection, the press-fitting assembly is driven by the lifting adjusting assembly to realize press-fitting of the components of the pyrotechnic gas generator, which reduces the number of production processes and avoids the need to transport the semi-finished product of the pyrotechnic gas generator, can realize press-fitting of a plurality of pyrotechnic gas generators at the same time, greatly reduces the average press-fitting cycle of the pyrotechnic gas generator, and improves the production efficiency; on the other hand, the transportation of all components of the pyrotechnic gas generator can be realized by a simple structure, which reduces the complexity of the structure and the manufacturing cost of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structural schematic diagram of the whole embodiment;

[0027] Figure 2is a structural schematic view of the screw sliding assembly and the automatic press fitting device of the embodiment;

[0028] Figure 3 is a structural schematic view of the press fitting assembly, the composite visual inspection assembly, the flexible clamping assembly and the lifting adjusting assembly of the embodiment.

[0029] Reference signs: 1, base; 11, feeding line; 12, discharging line; 13, feeding manipulator; 2, storage device; 21, storage disc; 22, rotary motor; 23, storage positioning assembly; 24, storage positioning hole; 3, positioning press fitting seat; 31, positioning press fitting hole; 4, screw sliding assembly; 5, automatic press fitting device; 51, first rotary disc; 52, first adjusting assembly; 521, first adjusting gear; 522, second adjusting gear; 523, first adjusting motor; 53, second rotary disc; 54, second adjusting assembly; 541, third adjusting gear; 542, fourth adjusting gear; 543, second adjusting motor; 55, press fitting assembly; 551, servo press; 552, press fitting head; 56, composite visual inspection assembly; 57, flexible clamping assembly; 571, synchronous clamping air cylinder; 572, flexible clamping block; 58, lifting adjusting assembly; 581, lifting adjusting electric cylinder; 582, lifting mounting seat. DETAILED DESCRIPTION

[0030] The application will be further described in detail below with reference to the drawings.

[0031] Embodiment 1:

[0032] Reference Figures 1 to 3The utility model provides a high -efficient automatic press -fitting device of pyrotechnic gas generator, including horizontal fixedly arranged base 1, is respectively and parallelly provided with storage device 2 and positioning press -fitting seat 3 on base 1, and still be provided with a plurality of for respectively conveying lower shell, cartridge, filter screen and upper shell's material flow line 11 and for conveying finished product pyrotechnic gas generator's unloading flow line 12 on base 1, and storage device 2, positioning press -fitting seat 3 and unloading flow line 12 are on the same straight line, to facilitate the component conveying of pyrotechnic gas generator to positioning press -fitting seat 3 and press -fitting and the conveying of the pyrotechnic gas generator of press -fitting completion to unloading flow line 12 realizes unloading, still fixedly provided with a plurality of for the upper shell, cartridge, filter screen and upper shell are clamped and conveyed to storage device 2 from material flow line 11's material mechanical arm 13, and material mechanical arm 13 and material flow line 11 are correspondingly set up, and the automatic press -fitting device 5 for realizing the upper shell, cartridge, filter screen and upper shell of pyrotechnic gas generator's material, detection and press -fitting and can realize finished product pyrotechnic gas generator unloading is movably connected with bridging storage device 2 and positioning press -fitting seat 3 on base 1 based on screw sliding component 4, in the embodiment, material flow line 11 and material mechanical arm 13 are provided with 4 groups, for respectively conveying lower shell, cartridge, filter screen and upper shell accurately into storage device 2, but not only can be provided with 4 groups, can be adapted to the kind number of pyrotechnic gas generator component, at the same time, also adaptively adjust storage device 2 and automatic press -fitting device 5.

[0033] Reference Figure 1 , specifically, storage device 2 includes rotatably connected on base 1 storage tray 21 and is used to drive storage tray 21 rotation's rotation motor 22, in the material loading process, rotation motor 22 is stepped rotation by driving storage tray 21, and 4 groups of storage positioning components 23 for respectively storing lower shell, cartridge, filter screen and upper shell are coaxially provided on storage tray 21 from inside to outside, and storage positioning component 23 is composed of a plurality of storage positioning holes 24 evenly arranged on storage tray 21 along the circumferential direction, the number of storage positioning holes 24 of 4 groups of storage positioning components 23 is equal, and each group of storage positioning components 23 is provided with an even number of storage positioning holes 24, and a plurality of positioning press -fitting holes 31 equal to the number of storage positioning holes 24 are evenly spaced on positioning press -fitting seat 3 along the circumferential direction, and lower shell, cartridge, filter screen and upper shell are stored on storage tray 21 in order of size, and not only can 4 groups of storage positioning components 23 be provided on storage tray 21, but also a plurality of storage positioning components 23 can be provided on storage tray 21 according to the type of pyrotechnic gas generator parts, or a plurality of storage devices 2 can be provided on base 1 to meet the storage requirements of pyrotechnic gas generator components.

[0034] Reference Figures 2 to 3, Specifically, the automatic press-fitting device 5 comprises a first rotating disc 51 rotatably connected to the screw sliding assembly 4 along a horizontal direction and a first adjusting assembly 52 for adjusting the relative angle between the first rotating disc 51 and the screw sliding assembly 4, a plurality of second rotating discs 53 are uniformly and circumferentially rotatably connected to the first rotating disc 51, a second adjusting assembly 54 is arranged on the first rotating disc 51 for synchronously adjusting the second rotating discs 53, a plurality of press-fitting assemblies 55, composite visual detection assemblies 56 and flexible clamping assemblies 57 are uniformly and circumferentially arranged on the second rotating disc 53, the press-fitting assemblies 55, the composite visual detection assemblies 56 and the flexible clamping assemblies 57 are movably connected to the second rotating disc 53 based on a lifting adjusting assembly 58, when it is needed to move the lower shell, the medicine box, the filter screen and the upper shell placed in the storage positioning hole 24 of the storage positioning assembly 23 to the positioning press-fitting hole 31 of the positioning press-fitting seat 3, the relative position between the flexible clamping assembly 57 and the second rotating disc 53 is adjusted by adjusting the rotating angle of the second rotating disc 53, so as to clamp the pyrotechnic gas generator parts in different storage positioning assemblies 23, when the distance between the flexible clamping assembly 57 and the axis of the first rotating disc 51 is the largest, the flexible clamping assembly 57 is used for clamping the parts in the outermost storage positioning assembly 23 of the storage disc 21, when the distance between the flexible clamping assembly 57 and the axis of the first rotating disc 51 is the smallest, the flexible clamping assembly 57 is used for clamping the parts in the innermost storage positioning assembly 23 of the storage disc 21, when the distance between the flexible clamping assembly 57 and the axis of the first rotating disc 51 is between the maximum value and the minimum value, the flexible clamping assembly 57 is used for clamping the parts between the outermost and the innermost storage positioning assemblies 23 of the storage disc 21, and meanwhile the first adjusting assembly 52 adjusts the relative position between the first rotating disc 51 as a whole and the storage disc 21, so as to align the flexible clamping assembly 57 with the storage positioning hole 24 to realize accurate clamping of the parts. In the embodiment, the number of the second rotating discs 53 is half or equal to the number of the storage positioning holes 24 on the first rotating disc 51, when the number of the second rotating discs 53 is half of the number of the storage positioning holes 24 on the first rotating disc 51, it is needed to transport twice to transport one kind of parts from the storage disc 21 to the positioning press-fitting hole 31 of the positioning press-fitting seat 3, which needs longer transportation time to a certain extent, but the force of the first adjusting assembly 52 acting on the second rotating disc 53 is lower, which is beneficial to the improvement of the adjusting speed, when the number of the second rotating discs 53 is half of the number of the storage positioning holes 24 on the first rotating disc 51, it is only needed to transport once to transport one kind of parts from the storage disc 21 to the positioning press-fitting hole 31 of the positioning press-fitting seat 3, which reduces the transportation time of the parts, but the force of the first adjusting assembly 52 acting on the second rotating disc 53 is higher, which needs to provide greater torque, each storage positioning assembly 23 is provided with at least 4 storage positioning holes 24 and at most 8 storage positioning holes 24.

[0035] Reference Figure 2 Specifically, the first adjusting assembly 52 comprises a first adjusting gear 521 fixedly connected to the first rotating disc 51 coaxially and a second adjusting gear 522 rotatably connected to the lead screw sliding assembly 4 and used for cooperating with the first adjusting gear 521, and the lead screw sliding assembly 4 is fixedly connected with a first adjusting motor 523 used for driving the second adjusting gear 522, the first adjusting motor 523 drives the second adjusting gear 522 to rotate, thereby driving the first adjusting gear 521 to rotate, thereby driving the first rotating disc 51 to rotate as a whole, so as to realize the adjustment of the relative position between the second rotating disc 53 and the storage seat or the positioning press-fitting seat 3, thereby realizing the accurate clamping and positioning of the parts. In the embodiment, the tooth number ratio between the first adjusting gear 521 and the second adjusting gear 522 is not less than 2:1, and is preferably 3:1.

[0036] Reference Figure 2 Specifically, the second adjusting assembly 54 comprises a third adjusting gear 541 fixedly connected to the first rotating disc 51 coaxially and a fourth adjusting gear 542 fixedly connected to the second rotating disc 53 coaxially and cooperating with the third adjusting gear 541 for transmission, and the lead screw sliding assembly 4 is fixedly connected with a second adjusting motor 543 used for driving the third adjusting gear 541 to rotate, the third adjusting gears 541 and the fourth adjusting gears 542 of the plurality of second adjusting assemblies 54 form a planetary gear set, share one third adjusting gear 541, and based on the third adjusting gear 541 driving the fourth adjusting gears 542 of all the second adjusting assemblies 54 to rotate synchronously, the synchronous adjustment of the clamping position is realized, when the third adjusting gear 541 drives a smaller number of fourth adjusting gears 542, the torque force acting on the fourth adjusting gears 542 is smaller, but the conveying time is increased, and when the third adjusting gear 541 drives a larger number of fourth adjusting gears 542, the torque force acting on the fourth adjusting gears 542 is larger, but the conveying time is reduced.

[0037] Reference Figure 3 Specifically, the lifting adjusting assembly 58 comprises a lifting adjusting electric cylinder 581 fixedly connected to the second rotating disc 53 along the vertical direction and a lifting mounting seat 582 fixedly connected to the telescopic end of the lifting adjusting electric cylinder 581, and the press-fitting assembly 55, the composite visual detection assembly 56 and the flexible clamping assembly 57 are all fixedly connected to the lifting mounting seat 582, when the parts are clamped and detected, and the press-fitting assembly 55 is lifted, the lifting adjusting assembly 58 drives the composite visual detection assembly 56 and the flexible clamping assembly 57 to descend.

[0038] Reference Figures 2 to 3Specifically, the press-fitting assembly 55 is provided with three groups, respectively used for press-fitting the medicine box, the filter screen into the lower shell and used for press-fitting the upper shell to the upper shell, the press-fitting assembly 55 includes a servo press 551 fixedly connected to the lifting mounting seat 582 and a press-fitting head 552 fixedly connected to the servo press 551 and used for matching the press-fitting requirements of the medicine box, the filter screen and the upper shell. The flexible clamping assembly 57 includes a synchronous clamping cylinder 571 fixedly connected to the lifting mounting seat 582 and a flexible clamping block 572 fixedly connected to the clamping end of the synchronous clamping cylinder 571, and the synchronous clamping cylinder 571 has a large clamping range to adapt to the clamping requirements of different sizes of parts.

[0039] Embodiment 2:

[0040] A high-efficiency automatic press-fitting method of a pyrotechnic gas generator, which applies a high-efficiency automatic press-fitting device of a pyrotechnic gas generator as shown in embodiment 1, and includes:

[0041] Step 1, the lower shell, the medicine box, the filter screen and the upper shell are respectively conveyed on the feeding line 11, and the feeding manipulator 13 respectively places the lower shell, the medicine box, the filter screen and the upper shell into the storage positioning holes 24 of the storage positioning assembly 23;

[0042] Step 2, the screw sliding assembly 4 drives the automatic press-fitting device 5 to move to the upper end of the storage device 2 so that the first rotating disc 51 coincides with the axis of the storage disc 21, in the sliding process, the second adjusting assembly 54 adjusts the relative position between the flexible clamping assembly 57 and the second rotating disc 53 by adjusting the rotation angle of the second rotating disc 53, so as to clamp the pyrotechnic gas generator parts in the different storage positioning assemblies 23, at the same time, the first adjusting assembly 52 adjusts the relative position between the first rotating disc 51 and the storage disc 21 as a whole, so that the flexible clamping assembly 57 is aligned with the storage positioning hole 24 to realize accurate clamping of the parts, when the distance between the flexible clamping assembly 57 and the axis of the first rotating disc 51 is the largest, the flexible clamping assembly 57 is used for clamping the parts in the storage positioning assembly 23 at the outermost layer of the storage disc 21, when the distance between the flexible clamping assembly 57 and the axis of the first rotating disc 51 is the smallest, the flexible clamping assembly 57 is used for clamping the parts in the storage positioning assembly 23 at the innermost layer of the storage disc 21, and when the distance between the flexible clamping assembly 57 and the axis of the first rotating disc 51 is between the maximum value and the minimum value, the flexible clamping assembly 57 is used for clamping the parts between the storage positioning assemblies 23 at the outermost layer and the innermost layer of the storage disc 21;

[0043] Step 3, the flexible clamping assembly 57 first clamps the lower shell from the storage seat into the positioning and pressing hole 31 of the positioning and pressing seat 3, and then the first adjusting assembly 52 and the second adjusting assembly adjust the positions of the first rotating disc 51 and the second rotating disc 53 to clamp the cartridge on the storage disc 21 into the lower shell in the positioning and pressing hole 31 correspondingly;

[0044] Step 4, the first adjusting assembly 52 and the second adjusting assembly adjust the composite visual detection assembly 56 and the pressing assembly 55 for pressing the cartridge into the lower shell to be above the positioning and pressing hole 31 in sequence, and the lifting adjusting assembly 58 drives the pressing assembly 55 to press the cartridge into the lower shell after the visual detection is completed;

[0045] Step 5, repeat step 2 to clamp the filter screen from the storage seat into the cartridge in the positioning and pressing hole 31, and then repeat step 4;

[0046] Step 6, repeat step 2 to clamp the upper shell from the storage seat into the upper shell in the positioning and pressing hole 31, and then repeat step 4 to complete the finished product pressing of the pyrotechnic gas generator;

[0047] Step 7, the flexible clamping assembly 57 clamps the finished product pyrotechnic gas generator, the screw sliding assembly 4 drives the finished product pyrotechnic gas generator to move to the unloading assembly line 12 to complete the unloading of the finished product pyrotechnic gas generator, and at the same time, step 1 is repeated.

[0048] The specific embodiment is only an explanation of the present application, and is not a limitation of the present application. Those skilled in the art can make creative contributions to the modification of the embodiment according to the needs after reading the specification, and as long as it is within the scope of the claims of the present application, it is protected by the patent law.

Claims

1. A high-efficiency automatic press-fitting device for a pyrotechnic gas generator, comprising a base (1); characterized in that, The base (1) is respectively provided with a storage device (2) and a positioning and pressing seat (3), the base (1) is further provided with a plurality of feeding assembly lines (11) for respectively conveying lower shells, medicine boxes, filter screens and upper shells and a lower assembly line (12) for conveying finished pyrotechnic gas generators, and a plurality of feeding manipulators (13) are fixedly arranged for clamping and conveying the lower shells, the medicine boxes, the filter screens and the upper shells from the feeding assembly lines (11) to the storage device (2), the base (1) is movably connected with an automatic pressing device (5) for realizing the feeding, detection and pressing of the lower shells, the medicine boxes, the filter screens and the upper shells of the pyrotechnic gas generator and capable of realizing the lower feeding of the finished pyrotechnic gas generator based on a screw sliding assembly (4) and crossing the storage device (2) and the positioning and pressing seat (3); The storage device (2) comprises a storage disc (21) rotatably connected to the base (1) and a rotating motor (22) for driving the storage disc (21) to rotate, the storage disc (21) is coaxially provided with four groups of storage positioning assemblies (23) for respectively storing the lower shells, the medicine boxes, the filter screens and the upper shells from the inside to the outside, the storage positioning assembly (23) is composed of a plurality of storage positioning holes (24) uniformly arranged on the storage disc (21) along the circumferential direction, the number of the storage positioning holes (24) of the four groups of storage positioning assemblies (23) is equal, and each group of the storage positioning assemblies (23) is provided with an even number of the storage positioning holes (24), and the positioning and pressing seat (3) is uniformly and interval provided with positioning and pressing holes (31) equal in number to the storage positioning holes (24) along the circumferential direction; The automatic pressing device (5) comprises a first rotating disc (51) rotatably connected to the screw sliding assembly (4) along the horizontal direction and a first adjusting assembly (52) for adjusting the relative angle between the first rotating disc (51) and the screw sliding assembly (4), a plurality of second rotating discs (53) are uniformly and interval rotatably connected to the first rotating disc (51) along the circumferential direction, the first rotating disc (51) is provided with a second adjusting assembly (54) for synchronously adjusting the second rotating discs (53), a plurality of pressing assemblies (55), composite visual detection assemblies (56) and flexible clamping assemblies (57) are uniformly and interval arranged on the second rotating discs (53) along the circumferential direction, and the pressing assemblies (55), the composite visual detection assemblies (56) and the flexible clamping assemblies (57) are movably connected to the second rotating discs (53) based on lifting adjusting assemblies (58); when it is needed to move the lower shells, the medicine boxes, the filter screens and the upper shells in the storage positioning holes (24) into the positioning and pressing holes (31) of the positioning and pressing seat (3), the relative position between the flexible clamping assembly (57) and the second rotating disc (53) is adjusted by adjusting the rotation angle of the second rotating disc (53) to realize the clamping of the pyrotechnic gas generator parts in different storage positioning assemblies (23).

2. The high-efficiency automatic press-fitting device for a pyrotechnic gas generator according to claim 1, characterized in that, The first adjusting assembly (52) comprises a first adjusting gear (521) fixedly connected to the first rotating disc (51) on the same axis and a second adjusting gear (522) rotatably connected to the screw sliding assembly (4) for cooperating with the first adjusting gear (521), and the screw sliding assembly (4) is fixedly connected with a first adjusting motor (523) for driving the second adjusting gear (522), and the tooth number ratio between the first adjusting gear (521) and the second adjusting gear (522) is not less than 2:

1.

3. The high-efficiency automatic press-fitting device for a pyrotechnic gas generator according to claim 1, characterized in that, The second adjusting assembly (54) comprises a third adjusting gear (541) fixedly connected to the first rotating disc (51) on the same axis and a fourth adjusting gear (542) fixedly connected to the second rotating disc (53) and cooperating with the third adjusting gear (541) for transmission, and the screw sliding assembly (4) is fixedly connected with a second adjusting motor (543) for driving the third adjusting gear (541) to rotate.

4. The high-efficiency automatic press-fitting device for a pyrotechnic gas generator according to claim 1, characterized in that, The lifting adjusting assembly (58) comprises a lifting adjusting electric cylinder (581) fixedly connected to the second rotating disc (53) along the vertical direction and a lifting mounting base (582) fixedly connected to the telescopic end of the lifting adjusting electric cylinder (581), and the press fitting assembly (55), the composite visual detection assembly (56) and the flexible clamping assembly (57) are all fixedly connected to the lifting mounting base (582).

5. The high-efficiency automatic press-fitting device for a pyrotechnic gas generator according to claim 4, characterized in that, The press fitting assembly (55) is provided with three groups, which are respectively used for press fitting the medicine box, the filter screen into the lower shell and used for press fitting the upper shell to the upper shell, and the press fitting assembly (55) comprises a servo press (551) fixedly connected to the lifting mounting base (582) and a press fitting head (552) fixedly connected to the servo press (551) and used for matching the press fitting requirements of the medicine box, the filter screen and the upper shell.

6. The high-efficiency automatic press-fitting device for a pyrotechnic gas generator according to claim 4, characterized in that, The flexible clamping assembly (57) comprises a synchronous clamping air cylinder (571) fixedly connected to the lifting mounting base (582) and a flexible clamping block (572) fixedly connected to the clamping end of the synchronous clamping air cylinder (571).

7. The high-efficiency automatic press-fitting device for a pyrotechnic gas generator according to claim 1, characterized in that, The first rotating disc (51) is provided with half or equal number of the second rotating disc (53) of the storage positioning hole (24), each group of the storage positioning assembly (23) is provided with at least 4 storage positioning holes (24) and at most 8 storage positioning holes (24).

8. A high-efficiency automatic press-fitting method of a pyrotechnic gas generator, using the high-efficiency automatic press-fitting device of any one of claims 1 to 7; characterized in that, Comprise: Step 1, the lower shell, the medicine box, the filter screen and the upper shell are conveyed on the feeding line (11) respectively, and the feeding manipulator (13) places the lower shell, the medicine box, the filter screen and the upper shell into the storage positioning hole (24) of the storage positioning assembly (23) respectively; Step 2, the screw slide assembly (4) drives the automatic press-fitting device (5) to move to the upper end of the storage device (2) to make the first rotating disc (51) coincide with the axis of the storage disc (21), in the process of sliding, the second adjusting assembly (54) adjusts the relative position of the flexible clamping assembly (57) and the second rotating disc (53) by adjusting the rotation angle of the second rotating disc (53), so as to clamp the pyrotechnic gas generator parts in different storage positioning assemblies (23), at the same time, the first adjusting assembly (52) adjusts the relative position between the first rotating disc (51) and the storage disc (21) to make the flexible clamping assembly (57) align with the storage positioning hole (24) to realize accurate clamping of the parts, when the distance between the flexible clamping assembly (57) and the axis of the first rotating disc (51) is the largest, the flexible clamping assembly (57) is used to clamp the parts in the outermost storage positioning assembly (23) of the storage disc (21), when the distance between the flexible clamping assembly (57) and the axis of the first rotating disc (51) is the smallest, the flexible clamping assembly (57) is used to clamp the parts in the innermost storage positioning assembly (23) of the storage disc (21), when the distance between the flexible clamping assembly (57) and the axis of the first rotating disc (51) is between the maximum and the minimum, the flexible clamping assembly (57) is used to clamp the parts between the outermost and the innermost storage positioning assemblies (23) of the storage disc (21); Step 3, the flexible clamping assembly (57) first clamps the lower shell from the storage disc (21) into the positioning and press-fitting hole (31) of the positioning and press-fitting seat (3), then the first adjusting assembly (52) and the second adjusting assembly (54) cooperate to adjust the positions of the first rotating disc (51) and the second rotating disc (53) to clamp the cartridge on the storage disc (21) into the lower shell in the positioning and press-fitting hole (31); Step 4, the first adjusting assembly (52) and the second adjusting assembly (54) cooperate to sequentially realize the adjustment of the composite visual detection assembly (56) and the press-fitting assembly (55) for press-fitting the cartridge into the lower shell to the directly above the positioning and press-fitting hole (31), after the visual detection is completed, the lifting adjusting assembly (58) drives the press-fitting assembly (55) to realize the press-fitting of the cartridge into the lower shell; Step 5, repeat step 2 to clamp the filter screen from the storage disc (21) into the cartridge in the positioning and press-fitting hole (31), then repeat step 4; Step 6, repeat step 2 to clamp the upper shell from the storage disc (21) onto the upper shell in the positioning and press-fitting hole (31), then repeat step 4 to complete the finished product press-fitting of the pyrotechnic gas generator; Step 7, the flexible clamping assembly (57) clamps the finished product pyrotechnic gas generator, the screw slide assembly (4) drives the finished product pyrotechnic gas generator to move to the unloading assembly line (12) to complete the unloading of the finished product pyrotechnic gas generator, at the same time, repeat step 1.

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