An automobile airbag ball tube flaring device

Abstract

The present invention relates to the technical field of tube processing, and proposes a flaring device for an automotive airbag tube, which includes a device housing and a knocking block. A multifunctional flaring assembly is installed inside the device housing. A support plate is welded and fixed inside the device housing. A hole groove is provided on the support plate. A forming template is installed and fixed on the bottom end surface of the support plate. A forming cavity is penetrated and provided inside the forming template. An automatic liquid supplementing assembly is installed on the support plate. A feeding frame is welded and fixed on the top of the device housing. A first blanking groove is penetrated and provided at the bottom of the feeding frame. A limiting frame is welded and fixed on the bottom end surface of the feeding frame. A second blanking groove is provided at the top of the limiting frame. Guide grooves are provided on both sides of the bottom of the limiting frame. Through the above technical solutions, the problems in the prior art that the flaring device for an automotive airbag tube is prone to cause clamping marks on the tube and the tube and the mold are prone to wear are solved.

Description

Technical Field

[0001] The invention relates to the technical field of ball tube processing, and in particular to a device for expanding a ball tube of an automobile safety air bag. Background Art

[0002] The automobile airbag tube is a key component in the airbag system. It is the pipe part used to transport gas when the airbag is inflated. This pipe structure can guide the gas from the gas generator into the airbag bag, thereby helping the airbag to inflate quickly and provide protection for the occupants. During the production and processing of the tube, it is necessary to use a flaring device to flare its end to facilitate its connection with other accessories.

[0003] However, there are some problems with the existing automobile airbag tube expanding devices. For example, an airbag tube and explosion tube expanding mold with publication number CN218835859U uses a lower clamp and an upper clamp to clamp and position the tube, and expands and forms the tube in the mold cavity of the lower clamp and the upper clamp. However, in actual operation, since there is a certain gap between the mold positions of the lower clamp and the upper clamp, it is very easy for the tube to produce clamp marks at this place during the subsequent expansion and forming process; and in actual operation, it is not possible to automatically and stably lubricate the expanding punch and the molding cavity of the mold. Therefore, when the tube is expanded and formed in the molding cavity of the mold, the contact parts between the tube and the expanding punch and the contact parts between the tube and the molding cavity are very likely to cause friction and wear, which will affect the final product quality and appearance, and also affect the service life of the mold. Therefore, it is necessary to provide an automobile airbag tube expanding device to meet the needs of users. Summary of the invention

[0004] The invention provides a device for expanding a ball tube of an automobile safety airbag, which solves the problem in the related art that the device for expanding a ball tube of an automobile safety airbag easily causes mold marks on the ball tube, and the ball tube and the mold are easily worn.

[0005] The technical solution of the present invention is as follows:

[0006] A device for expanding a tube of an automobile airbag comprises a device shell and a knocking block, a multifunctional expanding component is installed in the device shell, a support plate is welded and fixed in the device shell, a hole groove is provided on the support plate, a forming template is installed and fixed on the bottom end surface of the support plate, a forming cavity is penetrated in the forming template, an automatic liquid replenishing component is installed on the support plate, a loading frame is welded and fixed on the top of the device shell, a first unloading trough is penetrated in the bottom of the loading frame, a limiting frame is welded and fixed on the bottom end surface of the loading frame, a second unloading trough is provided on the top of the limiting frame, and guide grooves are provided on both sides of the bottom of the limiting frame, a second hydraulic rod is installed and fixed on the device shell, a push block is fixedly connected to the end of the second hydraulic rod, a unloading frame is welded and fixed on the inner wall of the device shell, and a rubber pad is fixedly connected in the unloading frame.

[0007] As a preferred scheme of the present invention, wherein: the multifunctional expanding assembly is provided with three groups, and the three groups of multifunctional expanding assemblies are equidistantly distributed on the inner wall of the device shell, the multifunctional expanding assembly includes a first hydraulic rod, one end of the first hydraulic rod is installed and fixed on the inner wall of the device shell, the other end of the first hydraulic rod is fixedly connected to a fixing plate, a through groove is penetrated through the bottom of the fixing plate, a first servo motor is welded and fixed on the fixing plate, a turntable and a limit plate are welded and fixed on the output shaft of the first servo motor, a shift rod is welded and fixed on the turntable, a rotating shaft is rotatably connected to the middle part of the side end of the fixing plate, a guide plate and a connecting frame are welded and fixed on the rotating shaft, and a guide groove is provided on the guide plate.

[0008] As a preferred solution of the present invention, wherein: the first hydraulic rod is fixed to the middle part of the side end of the fixed plate, the side end surface of the guide plate is arc-shaped, the limit plate is in contact with the guide plate, four guide grooves are provided, and the four guide grooves are distributed at equal angles on the guide plate, and the rotating shaft is fixed to the middle part of the connecting frame.

[0009] As a preferred solution of the present invention, wherein: a flaring punch is bolted on the connecting frame, a driven shaft is rotatably connected to the connecting frame, a sponge tube and a coil are fixedly connected to the driven shaft, a traction rope is wound on the coil, a sliding tube and a fixed frame are welded and fixed to the connecting frame, a volute spring is welded and fixed in the fixed frame, the inner end of the volute spring is welded and fixed to the driven shaft, a guide wheel is rotatably connected in the sliding tube, and the sliding tube is limitedly slidably connected in the sleeve.

[0010] As a preferred solution of the present invention, wherein: the driven shaft is fixed in the middle part of the sponge tube, the diameter of the sponge tube is larger than the inner diameter of the molding cavity, the cross-section of the sliding tube is rectangular, the sliding tube is fixed in the center part of the side end of the connecting frame, the end of the sleeve is rotatably connected in the hole groove, and the end of the traction rope is fixedly connected to the inner end face of the sleeve.

[0011] As a preferred solution of the present invention, wherein: the automatic fluid replenishment component includes a connecting plate and a liquid storage tank, the connecting plate and the liquid storage tank are both welded and fixed on the top end surface of the support plate, the connecting plates and the forming templates are each provided with three, the three connecting plates and the three forming templates are evenly distributed on the support plate, the connecting plate is located directly above the forming template, a connecting groove is provided in the connecting plate, the cross-section of the connecting groove is circular, the top limit sliding connection of the connecting plate is connected with a slider, the cross-section of the slider is "T" shaped, a connecting spring is welded and fixed to the side end of the slider, and the other end of the connecting spring is welded and fixed in the connecting plate.

[0012] As a preferred solution of the present invention, a connecting rod is welded and fixed on the top surface of the slider, a rack is welded and fixed on the side surface of the connecting rod, a circular gear is meshingly connected to the rack, a spiral rod is welded and fixed on the circular gear, the spiral rod is rotatably connected in the conveying cylinder, the conveying cylinder is welded and fixed in the liquid storage tank, the top side end of the conveying cylinder is connected to a liquid guide tube, the other end of the liquid guide tube is connected to a liquid guide frame, the liquid guide frame is fixedly connected to the inner wall of the connecting groove, and an atomizing nozzle is installed on the liquid guide frame.

[0013] As a preferred solution of the present invention, wherein: the racks are symmetrically distributed on both sides of the connecting rod, the racks correspond one-to-one with the spiral rods through circular gears, the spiral rods correspond one-to-one with the liquid storage tanks through conveying tubes, the liquid guide frame is cylindrical as a whole, and the atomizing nozzles are distributed at equal angles on the cylindrical inner wall of the liquid guide frame.

[0014] As a preferred scheme of the present invention, wherein: a knocking groove is provided on the inner wall of the limit frame, a rotating cylinder is rotatably connected in the limit frame, a transfer groove is provided on the rotating cylinder, a storage groove is provided on the rotating cylinder, a telescopic sleeve and a reset spring are welded and fixed in the storage groove, the other end of the telescopic sleeve and the other end of the reset spring are welded and fixed on the knocking block, the knocking groove is arc-shaped, the knocking grooves are symmetrically distributed on the upper and lower sides of the inner wall of the limit frame, the outer wall of the rotating cylinder is in contact with the inner wall of the limit frame, the storage grooves are distributed at equal angles on both sides of the rotating cylinder, the storage grooves correspond one-to-one with the knocking blocks through the telescopic sleeve, the knocking block is semi-spherical, and the output shaft of the second servo motor is welded and fixed on the rotating cylinder.

[0015] As a preferred solution of the present invention, there are three loading frames, which are equidistantly distributed in the device housing, the loading frames correspond to the limit frames one by one, the inner bottom end surface of the loading frames is inclined, the width of the first feeding trough is equal to the width of the second feeding trough, and the horizontal center line of the guide trough, the horizontal center line of the molding cavity and the horizontal center line of the push block are located on the same horizontal line.

[0016] The working principle and beneficial effects of the present invention are:

[0017] 1. The present invention is provided with a multifunctional expanding component, which utilizes a turntable to drive the lever to perform stable circular motion, and combined with the various guide grooves on the guide plate, it can drive the connecting frame on the rotating shaft to perform automatic and stable intermittent rotation, and each time it rotates 90°, the intermittent rotation of the connecting frame can automatically and stably switch the positions of the sponge tube and the expanding punch, and the position-switched sponge tube and the expanding punch can automatically and stably perform the expanding molding of the ball tube inside the molding cavity and the lubrication treatment inside the molding cavity, thereby effectively avoiding the wear of the outer wall of the ball tube during the expanding molding process, affecting the final product quality and appearance, and in the process of the sponge tube moving into the molding cavity, combined with the volute spring, it can drive the sponge tube on the driven shaft to automatically rotate, thereby automatically and evenly lubricating various parts inside the molding cavity, thereby increasing the convenience and stability of the expanding device, and utilizing the overall molding cavity can effectively avoid the problem of clamping marks on the ball tube during the expanding process.

[0018] 2. The present invention is provided with an automatic fluid replenishing component, which utilizes a sponge tube or a flaring punch with a switched position to expand the ball tube inside the molding cavity or lubricate the inside of the molding cavity. The switched sponge tube or flaring punch can also be automatically inserted into the connecting groove on the connecting plate. At the same time, the fixed plate can push the rack on the connecting rod to move automatically, and the circular gear can drive the spiral rod to rotate automatically, so that the lubricating liquid in the liquid storage tank can be automatically transported to the liquid guide frame, and the atomizing nozzle can be combined to spray and replenish the lubricating liquid on the switched sponge tube or the flaring punch. By automatically replenishing the lubricating liquid, the stability of the sponge tube's multiple working states can be ensured, and by spraying the lubricating liquid on the flaring punch, the wear of the inner wall of the flared ball tube can be further avoided. In summary, the cooperation of the multifunctional flaring component and the automatic fluid replenishing component can automatically complete the lubrication of the molding cavity and the flaring punch, so that the wear of the inner and outer walls of the flared part of the ball tube can be effectively avoided, thereby increasing the diversity and convenience of the flaring device.

[0019] 3. The present invention is provided with a rotating cylinder, which can be driven by a second servo motor to rotate stably. Combined with the first feeding trough, the second feeding trough and the transfer trough, the ball tube can be automatically loaded. In the process of rotation of the rotating cylinder, the knocking blocks on each telescopic sleeve can be driven to move to the knocking groove one by one. Combined with the reset spring, the limit frame can be automatically knocked and vibrated to avoid the ball tube from getting stuck during the unloading process, thereby ensuring the stability of the ball tube unloading work. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the connection structure between the driven shaft and the sponge tube of the present invention;

[0023] Figure 3 It is a schematic diagram of the connection structure of the support plate and the connecting plate of the present invention;

[0024] Figure 4 It is a schematic diagram of the connection structure of the traction rope and the sleeve of the present invention;

[0025] Figure 5 It is a schematic diagram of the connection structure between the limit frame and the rotating cylinder of the present invention;

[0026] Figure 6 It is a schematic diagram of the overall main cross-sectional structure of the present invention;

[0027] Figure 7 The present invention Figure 6 The enlarged structural diagram at A in the middle;

[0028] Figure 8 It is a schematic diagram of the side view structure of the scroll spring of the present invention;

[0029] Fig. 9 It is a schematic diagram of the side view structure of the guide plate of the present invention;

[0030] Fig.10 It is a schematic diagram of the side view structure of the expansion punch of the present invention;

[0031] Fig.11 It is a schematic diagram of the side cross-sectional structure of the connection plate of the present invention;

[0032] Fig.12 It is a schematic diagram of the top view of the rack structure of the present invention;

[0033] Fig.13 It is a schematic diagram of the main cross-sectional structure of the liquid storage tank of the present invention;

[0034] Fig.14 The present invention Figure 6 The enlarged structural diagram at B in the middle;

[0035] Fig.15 It is a schematic diagram of the side structure of the rotating cylinder of the present invention.

[0036] In the figure: 1. device housing; 2. multifunctional flaring assembly; 201. first hydraulic rod; 202. fixing plate; 203. through slot; 204. first servo motor; 205. turntable; 206. limit plate; 207. lever; 208. rotating shaft; 209. guide plate; 210. guide slot; 211. connecting frame; 212. flaring punch; 213. driven shaft; 214. sponge cylinder; 215. coil; 216. traction rope; 217. sliding tube; 218. guide wheel; 219. sleeve; 220. fixing frame; 221. scroll spring; 3. support plate; 4. hole slot; 5. forming template; 6. forming cavity; 7. automatic liquid replenishing assembly; 701. Connecting plate; 702, connecting groove; 703, connecting spring; 704, sliding block; 705, connecting rod; 706, rack; 707, circular gear; 708, screw rod; 709, conveying cylinder; 710, liquid storage tank; 711, liquid guide tube; 712, liquid guide frame; 713, atomizing nozzle; 8, loading frame; 9, first unloading trough; 10, limiting frame; 11, second unloading trough; 12, guiding trough; 13, knocking groove; 14, rotating cylinder; 15, transfer trough; 16, storage groove; 17, telescopic sleeve rod; 18, reset spring; 19, knocking block; 20, second hydraulic rod; 21, push block; 22, unloading frame; 23, rubber pad; 24, second servo motor. DETAILED DESCRIPTION

[0037] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1

[0038] like Figure 1 to Figure 15As shown, the present embodiment proposes an automobile airbag tube expansion device, comprising a device shell 1 and a knocking block 19, a multifunctional expansion component 2 is installed in the device shell 1, a support plate 3 is welded and fixed in the device shell 1, a hole groove 4 is opened on the support plate 3, a forming template 5 is fixedly installed on the bottom end surface of the support plate 3, a forming mold cavity 6 is penetrated in the forming template 5, an automatic liquid replenishing component 7 is installed on the support plate 3, a loading frame 8 is welded and fixed on the top of the device shell 1, a first unloading trough 9 is penetrated at the bottom of the loading frame 8, a limiting frame 10 is welded and fixed on the bottom end surface of the loading frame 8, the limiting frame 10 is welded and fixed on the support plate 3, a second unloading trough 11 is opened on the top of the limiting frame 10, and two sides of the bottom of the limiting frame 10 are opened. A material guide trough 12 is provided, a second hydraulic rod 20 is fixedly installed on the device housing 1, a push block 21 is fixedly connected to the end of the second hydraulic rod 20, a material discharge frame 22 is welded and fixed on the inner wall of the device housing 1, a rubber pad 23 is fixedly connected inside the material discharge frame 22, and the multifunctional expanding component 2 can automatically and stably perform the expanding molding of the ball tube inside the molding cavity 6 and the lubrication treatment inside the molding cavity 6, thereby effectively avoiding the wear of the outer wall of the ball tube during the expanding molding process, affecting the final product quality and appearance, and combined with the automatic liquid replenishing component 7, the multifunctional expanding component 2 can be automatically replenished with lubricating fluid to ensure the stability of the multifunctional expanding component 2 in multiple working states, thereby increasing the diversity and convenience of the use of the expanding device. Example 2

[0039] like Figure 1 to Figure 15 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment also proposes a vehicle safety airbag tube expansion device.

[0040] In the present embodiment, three groups of multifunctional flaring components 2 are provided, and the three groups of multifunctional flaring components 2 are equidistantly distributed on the inner wall of the device housing 1. The multifunctional flaring components 2 include a first hydraulic rod 201, one end of the first hydraulic rod 201 is fixedly installed on the inner wall of the device housing 1, and the other end of the first hydraulic rod 201 is fixedly connected with a fixing plate 202, and a through groove 203 is penetrated through the bottom of the fixing plate 202, and a first servo motor 204 is welded and fixed on the fixing plate 202, and a turntable 205 and a limit plate 206 are welded and fixed on the output shaft of the first servo motor 204, and a lever 207 is welded and fixed on the turntable 205, and a rotating shaft 208 is rotatably connected to the middle part of the side end of the fixing plate 202, and a guide plate 209 and a connecting frame 211 are welded and fixed on the rotating shaft 208, and the guide plate 2 09 is provided with a guide groove 210, the connecting frame 211 is fitted with the fixed plate 202, the first hydraulic rod 201 is fixed to the middle part of the side end of the fixed plate 202, the side end surface of the guide plate 209 is arc-shaped, the limit plate 206 is fitted with the guide plate 209, four guide grooves 210 are provided, and the four guide grooves 210 are distributed on the guide plate 209 at equal angles, the rotating shaft 208 is fixed to the middle part of the connecting frame 211, the fixed plate 202 and the connecting frame 211 are both made of steel plates, the turntable 205 is used to drive the lever 207 to perform stable circular motion, and the guide grooves 210 on the guide plate 209 can drive the connecting frame 211 on the rotating shaft 208 to perform automatic and stable intermittent rotation, and each rotation is 90°, so as to ensure the stability and convenience of its subsequent working state.

[0041] In this embodiment, a flaring punch 212 is bolted to the connecting frame 211, a driven shaft 213 is rotatably connected to the connecting frame 211, a sponge tube 214 and a coil 215 are fixedly connected to the driven shaft 213, a traction rope 216 is wound around the coil 215, a sliding tube 217 and a fixed frame 220 are welded and fixed to the connecting frame 211, a volute spring 221 is welded and fixed in the fixed frame 220, the inner end of the volute spring 221 is welded and fixed to the driven shaft 213, a guide wheel 218 is rotatably connected in the sliding tube 217, the sliding tube 217 is limitedly slidably connected in the sleeve 219, the driven shaft 213 is fixed to the middle part of the sponge tube 214, the diameter of the sponge tube 214 is larger than the inner diameter of the molding cavity 6, the cross-section of the sliding tube 217 is rectangular, and the sliding tube 217 is Fixed at the center of the side end of the connecting frame 211, the sleeve 219 is arranged in the hole groove 4, the diameter of the hole groove 4 is larger than the diameter of the sleeve 219, the end of the sleeve 219 is rotatably connected in the hole groove 4, the traction rope 216 passes through and is slidably connected in the sliding tube 217, the traction rope 216 is slidably connected to the guide wheel 218, and the end of the traction rope 216 is fixedly connected to the inner end face of the sleeve 219. By utilizing the intermittent rotation of the connecting frame 211, the sponge tube 214 and the expanding punch 212 can be automatically and stably switched in position. By utilizing the sponge tube 214 and the expanding punch 212 that have been switched in position, the expansion molding of the ball tube inside the molding cavity 6 and the lubrication treatment inside the molding cavity 6 can be automatically and stably performed, thereby effectively avoiding the wear of the outer wall of the ball tube during the expansion molding process.

[0042] In this embodiment, the automatic liquid replenishment component 7 includes a connecting plate 701 and a liquid storage tank 710, and the connecting plate 701 and the liquid storage tank 710 are both welded and fixed on the top surface of the support plate 3. There are three connecting plates 701 and three forming templates 5, and the three connecting plates 701 and the three forming templates 5 are evenly distributed on the support plate 3. The connecting plate 701 is located directly above the forming template 5. A connecting groove 702 is opened in the connecting plate 701, and the cross-section of the connecting groove 702 is circular. The top of the connecting plate 701 is limited and slidably connected to a slider 704, and the slider 704 The cross section is in a "T" shape. A connecting spring 703 is welded and fixed to the side end of the slider 704. The other end of the connecting spring 703 is welded and fixed in the connecting plate 701. A connecting rod 705 is welded and fixed to the top surface of the slider 704. A rack 706 is welded and fixed to the side end surface of the connecting rod 705. A circular gear 707 is meshed and connected to the rack 706. A spiral rod 708 is welded and fixed to the circular gear 707. The spiral rod 708 is rotatably connected to the conveying cylinder 709. The conveying cylinder 709 is welded and fixed in the liquid storage tank 710. The spiral rod 70 8 is rotatably connected to the liquid storage tank 710, the top side end of the delivery cylinder 709 is connected to a liquid guide tube 711, the other end of the liquid guide tube 711 is connected to a liquid guide frame 712, the liquid guide frame 712 is fixedly connected to the inner wall of the connecting groove 702, an atomizing nozzle 713 is installed on the liquid guide frame 712, the racks 706 are symmetrically distributed on both sides of the connecting rod 705, the racks 706 correspond to the spiral rods 708 one by one through the circular gears 707, the spiral rods 708 correspond to the liquid storage tank 710 one by one through the delivery cylinder 709, and the liquid guide frame 712 is cylindrical as a whole. The atomizing nozzles 713 are distributed at equal angles on the cylindrical inner wall of the liquid guide frame 712. The fixed plate 202 can push the rack 706 on the connecting rod 705 to move automatically. Combined with the circular gear 707, the spiral rod 708 can be driven to rotate automatically, and the lubricating liquid in the liquid storage tank 710 can be automatically transported to the liquid guide frame 712. Combined with the atomizing nozzles 713, the switched sponge tube 214 or the expanding punch 212 can be sprayed and supplemented with lubricating liquid. By automatically replenishing the lubricating liquid, the stability of the sponge tube 214 in multiple working states can be guaranteed.

[0043] In the present embodiment, a knocking groove 13 is provided on the inner wall of the limit frame 10, a rotating cylinder 14 is rotatably connected in the limit frame 10, a transfer groove 15 is provided on the rotating cylinder 14, a receiving groove 16 is provided on the rotating cylinder 14, a telescopic sleeve 17 and a reset spring 18 are welded and fixed in the receiving groove 16, the other end of the telescopic sleeve 17 and the other end of the reset spring 18 are welded and fixed on the knocking block 19, the reset spring 18 is sleeved on the telescopic sleeve 17, the knocking groove 13 is arc-shaped, the knocking grooves 13 are symmetrically distributed on the upper and lower sides of the inner wall of the limit frame 10, the outer wall of the rotating cylinder 14 is fitted with the inner wall of the limit frame 10, the receiving grooves 16 are distributed at equal angles on both sides of the rotating cylinder 14, the receiving grooves 16 correspond one-to-one with the knocking blocks 19 through the telescopic sleeve 17, the knocking blocks 19 are semi-spherical, the output shaft of the second servo motor 24 is welded and fixed on the rotating cylinder 14, the output shaft of the second servo motor 24 is welded and fixed on the The output shaft is rotatably connected to the device housing 1, the support plate 3 and the limit frame 10. Three loading frames 8 are provided, and the three loading frames 8 are equidistantly distributed in the device housing 1. The loading frames 8 correspond to the limit frames 10 one by one. The inner bottom end surface of the loading frame 8 is inclined. The width of the first feeding trough 9 is equal to the width of the second feeding trough 11. The horizontal center line of the guide trough 12, the horizontal center line of the molding cavity 6 and the horizontal center line of the push block 21 are located on the same horizontal line. The push block 21 is disc-shaped, and the diameter of the push block 21 is equal to the internal width of the guide trough 12. The internal width of the guide trough 12 is equal to the inner diameter of one end of the molding cavity 6. During the rotation of the rotating cylinder 14, the knocking blocks 19 on each telescopic sleeve 17 can be driven to move to the knocking groove 13 one by one. Combined with the reset spring 18, the limit frame 10 can be automatically knocked and vibrated to avoid the ball tube from getting stuck during the feeding process.

[0044] It should be noted that the present invention is a device for expanding the tube of an automobile safety airbag. First, when the device starts working, the staff can first place the tube in the loading frame 8, and then the staff can drive the first servo motor 204 on the fixed plate 202. At this time, the first servo motor 204 can drive the turntable 205 and the limit plate 206 to rotate synchronously through the output shaft. Under the rotation action of the turntable 205, the lever 207 can be driven to move to the guide groove 210 on the guide plate 209, and the guide plate 209 can be driven to rotate stably through the lever 207. Then the lever 207 moves to the next guide groove 210 and can The guide plate 209 can be driven to rotate, and this reciprocating movement can drive the guide plate 209 to rotate intermittently, and each time it rotates 90°, the intermittent rotation of the guide plate 209 can drive the connecting frame 211 to rotate synchronously through the rotating shaft 208, and the intermittent rotation of the connecting frame 211 can drive the expanding punch 212 and the sponge tube 214 on the driven shaft 213 to switch positions every time the connecting frame 211 rotates 180°, and when the guide plate 209 stops rotating, the guide plate 209 and the limiting plate 206 are fitted to limit the position, so as to avoid shaking of the guide plate 209 when it stops rotating, thereby ensuring the stability of the intermittent rotation work;

[0045] The sponge tube 214 first moves to align with the connecting groove 702, and then pushes the fixed plate 202 to move toward the support plate 3 through the first hydraulic rod 201. At this time, the sponge tube 214 can be stably inserted into the connecting groove 702. At the same time, the flaring punch 212 is aligned with the forming cavity 6 and inserted into the forming cavity 6. Under the movement of the fixed plate 202, it can contact the connecting rod 705 and push the connecting rod 705 to move toward the connecting plate 701. At this time, the connecting rod 705 can drive the circular gear 707 to mesh and rotate through the rack 706, and then drive the spiral rod 708 to rotate automatically. Under the rotation of the spiral rod 708, the lubricating liquid in the liquid storage tank 710 can be spirally transported to the liquid guide frame 712 through the liquid guide tube 711 in combination with the conveying tube 709. In combination with each atomizing nozzle 713, the lubricating liquid can be atomized and sprayed on the sponge tube 214;

[0046] At the same time, under the action of the movement of the fixed plate 202, the sliding tube 217 can be pushed to move inside the sleeve 219. At this time, under the elastic action of the spiral spring 221 inside the fixed frame 220, the driven shaft 213 can be driven to rotate automatically, and the traction rope 216 can be automatically reeled up through the coil 215. At this time, the driven shaft 213 can drive the sponge tube 214 to rotate automatically, ensuring that the sponge tube 214 is sprayed evenly everywhere. Similarly, the first hydraulic rod 201 drives the sponge tube 214 and the flaring punch 212 to move away from the connecting groove 702 and the forming cavity 6 through the fixed plate 202;

[0047] When resetting, the sliding tube 217 can be pulled to move and reset, and the traction rope 216 is pulled to ensure the stability of the subsequent repeated working state of the traction rope 216;

[0048] Then, the expanding punch 212 and the sponge tube 214 are driven to switch positions. At this time, under the driving action of the first hydraulic rod 201, the expanding punch 212 can be pushed to be inserted into the connecting groove 702, and the sponge tube 214 is inserted into the forming cavity 6. Similarly, at this time, the lubricating liquid can be evenly sprayed on the expanding punch 212 through each atomizing nozzle 713, and the movement and rotation of the sponge tube 214 can be used to evenly lubricate the inner wall of the forming cavity 6. Then, the expanding punch 212 and the sponge tube 214 are driven to switch positions. At this time, the expanding punch 212 is aligned with the forming cavity 6;

[0049] During the position switching process of the expanding punch 212 and the sponge cylinder 214, the second servo motor 24 can drive the rotating cylinder 14 to rotate stably. When the transfer groove 15 on the rotating cylinder 14 is aligned with the first feeding groove 9 and the second feeding groove 11, the ball tube in the loading frame 8 can automatically move to the transfer groove 15 through the first feeding groove 9 and the second feeding groove 11 to complete the automatic loading. Then, after the expanding punch 212 moves to the bottom, the rotating cylinder 14 drives the ball tube to move to the guide groove 12 on the limit frame 10 through the transfer groove 15. Then, under the driving action of the second hydraulic rod 20, the ball tube can be pushed to the forming cavity 6 on the forming template 5 through the push block 21. Combined with the expanding punch 212, the ball tube can be expanded. After the ball tube is expanded, the expanding punch 212 and the sponge tube 214 move in a circle of 90° to avoid obstruction to the discharge of the ball tube. Then, the second hydraulic rod 20 is continued to push the expanded ball tube to pass through the forming cavity 6 and fall on the discharge frame 22 to perform automatic and stable guided discharge. In summary, this reciprocating process can automatically and stably complete the automatic loading and unloading of the ball tube and the stability of the automatic lubrication expanding process. During the rotation of the rotating cylinder 14, the knocking blocks 19 on each telescopic sleeve 17 can be driven to move to the knocking groove 13 one by one. Combined with the reset spring 18, the limit frame 10 can be automatically knocked and vibrated to avoid the ball tube from getting stuck during the discharge process, thereby ensuring the stability of the ball tube discharge work.

[0050] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for expanding the tube of an automobile airbag, characterized in that: The invention comprises a device housing (1) and a knocking block (19), wherein a multifunctional flaring component (2) is installed in the device housing (1), a support plate (3) is welded and fixed in the device housing (1), a hole groove (4) is provided on the support plate (3), a molding template (5) is fixedly installed on the bottom end surface of the support plate (3), a molding cavity (6) is provided through the molding template (5), an automatic liquid replenishing component (7) is installed on the support plate (3), and the multifunctional flaring component (2) is provided in three groups, and the three groups of multifunctional flaring components (2) are equidistantly distributed at The multifunctional flaring assembly (2) comprises a first hydraulic rod (201) on the inner wall of the device housing (1), one end of the first hydraulic rod (201) being mounted and fixed on the inner wall of the device housing (1), the other end of the first hydraulic rod (201) being fixedly connected to a fixing plate (202), a through slot (203) being provided through the bottom of the fixing plate (202), a first servo motor (204) being welded and fixed to the fixing plate (202), and a rotating disk (205) and a limit stop being welded and fixed to the output shaft of the first servo motor (204). The rotating plate (206) is welded and fixed with a lever (207), the middle part of the side end of the fixed plate (202) is rotatably connected with a rotating shaft (208), the rotating shaft (208) is welded and fixed with a guide plate (209) and a connecting frame (211), the guide plate (209) is provided with a guide groove (210), the connecting frame (211) is bolted with a flaring punch (212), the top of the device housing (1) is welded and fixed with a loading frame (8), and the bottom of the loading frame (8) is penetrated by a A first material discharge trough (9) is provided, a limit frame (10) is welded and fixed on the bottom end surface of the material loading frame (8), a second material discharge trough (11) is provided on the top of the limit frame (10), material guide grooves (12) are provided on both sides of the bottom of the limit frame (10), a second hydraulic rod (20) is fixedly mounted on the device housing (1), a push block (21) is fixedly connected to the end of the second hydraulic rod (20), a material discharge frame (22) is welded and fixedly mounted on the inner wall of the device housing (1), and a rubber pad (23) is fixedly connected inside the material discharge frame (22).

2. The automobile airbag tube expansion device according to claim 1, characterized in that: The first hydraulic rod (201) is fixed to the middle part of the side end of the fixed plate (202); the side end surface of the guide plate (209) is in an arc shape; the limit plate (206) is in contact with the guide plate (209); four guide grooves (210) are provided; the four guide grooves (210) are distributed at equal angles on the guide plate (209); and the rotating shaft (208) is fixed to the middle part of the connecting frame (211).

3. The automobile airbag tube expansion device according to claim 2, characterized in that: A driven shaft (213) is rotatably connected to the connecting frame (211), a sponge tube (214) and a coil (215) are fixedly connected to the driven shaft (213), a traction rope (216) is wound around the coil (215), a sliding tube (217) and a fixed frame (220) are welded and fixed to the connecting frame (211), a spiral spring (221) is welded and fixed inside the fixed frame (220), the inner end of the spiral spring (221) is welded and fixed to the driven shaft (213), a guide wheel (218) is rotatably connected inside the sliding tube (217), and the sliding tube (217) is limitedly slidably connected inside the sleeve (219).

4. The automobile airbag tube expansion device according to claim 3, characterized in that: The driven shaft (213) is fixed to the middle part of the sponge tube (214); the diameter of the sponge tube (214) is larger than the inner diameter of the molding cavity (6); the cross section of the sliding tube (217) is rectangular; the sliding tube (217) is fixed to the center part of the side end of the connecting frame (211); the end of the sleeve (219) is rotatably connected to the hole groove (4); and the end of the traction rope (216) is fixedly connected to the inner end surface of the sleeve (219).

5. The automobile airbag tube expansion device according to claim 1, characterized in that: The automatic liquid replenishing component (7) comprises a connecting plate (701) and a liquid storage tank (710), wherein the connecting plate (701) and the liquid storage tank (710) are both welded and fixed on the top surface of the supporting plate (3), and three connecting plates (701) and three forming templates (5) are provided, and the three connecting plates (701) and the three forming templates (5) are evenly distributed on the supporting plate (3), and the connecting plate (701) is located directly above the forming template (5). A connecting groove (702) is provided in the connecting plate (701), and the cross section of the connecting groove (702) is circular. A slider (704) is slidably connected to the top of the connecting plate (701), and the cross section of the slider (704) is "T"-shaped. A connecting spring (703) is welded and fixed to the side end of the slider (704), and the other end of the connecting spring (703) is welded and fixed in the connecting plate (701).

6. The automobile airbag tube expansion device according to claim 5, characterized in that: A connecting rod (705) is welded and fixed on the top surface of the slider (704), a rack (706) is welded and fixed on the side surface of the connecting rod (705), a circular gear (707) is meshed and connected to the rack (706), a spiral rod (708) is welded and fixed to the circular gear (707), the spiral rod (708) is rotatably connected in a conveying cylinder (709), the conveying cylinder (709) is welded and fixed in a liquid storage tank (710), a liquid guide tube (711) is connected to the top side end of the conveying cylinder (709), the other end of the liquid guide tube (711) is connected to a liquid guide frame (712), the liquid guide frame (712) is fixedly connected to the inner wall of the connecting groove (702), and an atomizing nozzle (713) is installed on the liquid guide frame (712).

7. The automobile airbag tube expansion device according to claim 6, characterized in that: The racks (706) are symmetrically distributed on both sides of the connecting rod (705); the racks (706) correspond one-to-one with the screw rods (708) via the circular gears (707); the screw rods (708) correspond one-to-one with the liquid storage tank (710) via the delivery cylinders (709); the liquid guide frame (712) is cylindrical in shape as a whole; and the atomizing nozzles (713) are equiangularly distributed on the cylindrical inner wall of the liquid guide frame (712).

8. The automobile airbag tube expansion device according to claim 1, characterized in that: A striking groove (13) is provided on the inner wall of the limit frame (10), a rotating cylinder (14) is rotatably connected in the limit frame (10), a transfer groove (15) is provided on the rotating cylinder (14), a receiving groove (16) is provided on the rotating cylinder (14), a telescopic sleeve rod (17) and a return spring (18) are welded and fixed in the receiving groove (16), the other end of the telescopic sleeve rod (17) and the other end of the return spring (18) are welded and fixed on the striking block (19), the striking groove (13) is in an arc shape, and the striking The striking grooves (13) are symmetrically distributed on the upper and lower sides of the inner wall of the limit frame (10); the outer wall of the rotating cylinder (14) is in contact with the inner wall of the limit frame (10); the receiving grooves (16) are distributed at equal angles on both sides of the rotating cylinder (14); the receiving grooves (16) correspond one-to-one with the striking blocks (19) through the telescopic sleeve (17); the striking blocks (19) are semi-spherical; a second servo motor (24) is welded and fixed on the device housing (1); and the output shaft of the second servo motor (24) is welded and fixed on the rotating cylinder (14).

9. The automobile airbag tube expansion device according to claim 1, characterized in that: Three loading frames (8) are provided, and the three loading frames (8) are equidistantly distributed in the device housing (1). The loading frames (8) correspond to the limit frames (10) one by one. The inner bottom end surface of the loading frames (8) is inclined. The width of the first material discharge trough (9) is equal to the width of the second material discharge trough (11). The horizontal center line of the guide trough (12), the horizontal center line of the molding cavity (6) and the horizontal center line of the push block (21) are located on the same horizontal line.

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