A multi-process intelligent assembling device for safety helmets

Abstract

This invention relates to the field of safety helmet processing technology and discloses a multi-process intelligent assembly device for safety helmets. The device includes a processing table with several circumferentially arranged support rods installed in the center. A top plate is installed at the top of each support rod. Several circumferentially arranged conveyor belt mechanisms are installed on the processing table, and a discharge port is provided in the center of the processing table, directly opposite each conveyor belt mechanism. Several sets of supports are installed on the processing table, each set containing two individual units symmetrically arranged on both sides of the corresponding conveyor belt mechanism. The device also includes a detachable support component, a flipping component, a negative pressure adsorption component, and a transmission component. Under normal conditions, the detachable movable seat is in a separated state, which can fully avoid the overall movement trajectory of the negative pressure adsorption component and the flipping component, preventing obstruction of workpiece flipping and material transfer. This eliminates component interference problems in the loading and flipping process, effectively improving the stability and smoothness of equipment operation.

Description

Technical Field

[0001] This invention relates to the field of safety helmet manufacturing technology, specifically a multi-process intelligent assembly device for safety helmets. Background Technology

[0002] As an important type of head protection equipment, the production and assembly of safety helmets involves the precise combination of multiple components such as the helmet shell, inner liner (hat liner), and chin strap. When automating the assembly of the helmet shell and inner liner, it is usually necessary to accurately place the injection-molded helmet shell into the contour positioning groove of the processing table with its opening facing upwards, so that the robot arm can press the inner liner in and clamp it in place.

[0003] In existing technologies, when pressing the helmet shell and inner liner together, multi-degree-of-freedom articulated robotic arms are often used, with multiple suction cups at their ends. These suction cups apply negative pressure to grip the outer wall of the helmet shell, which is placed on the conveyor belt with the opening facing upwards. Subsequently, the robotic arm drives the suction cup assembly to lift the helmet shell and flip it 180 degrees in the air so that the opening faces upwards. Then, it is lowered into a fixed contour groove for positioning.

[0004] However, with this feeding method, the suction cup assembly protrudes from the outside of the cap shell, making it very easy for the workpiece to interfere with the contour groove structure during the process of falling into the groove. In order to avoid collisions and scratches, the equipment needs to add multiple avoidance fine-tuning actions, which not only lengthens the operation cycle and reduces production efficiency, but also makes it easy for the cap shell to shift during repeated position adjustments, resulting in insufficient stability of the assembly datum.

[0005] To address the problems mentioned above, those skilled in the art have proposed a multi-process intelligent assembly device for safety helmets. Summary of the Invention

[0006] The purpose of this invention is to provide a multi-process intelligent assembly device for safety helmets to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A multi-process intelligent assembly device for safety helmets includes a processing table, several circumferentially arranged support rods installed in the middle of the processing table, a top plate installed at the top of the support rods, several circumferentially arranged conveyor belt mechanisms installed on the processing table, several sets of brackets installed on the processing table, each set of brackets including two units symmetrically arranged on both sides of the corresponding conveyor belt mechanism, and further includes: a detachable support component, a flipping component, a negative pressure adsorption component, and a transmission component.

[0009] The detachable support component is located on the top of the bracket. The detachable support component includes a detachable movable seat, a support frame, and a limiting member. The support frame is fixedly installed on the top of the bracket. The limiting member is located between the detachable movable seat and the inner wall of the support frame. The limiting member is used to provide elastic force to the detachable movable seat, keeping the detachable movable seat in a detached state under normal conditions and deviating from the flipping path of the flipping component and the negative pressure adsorption component, so as to avoid interference when placing the safety helmet shell. The detachable movable seat has a contoured groove for placing the safety helmet shell.

[0010] The flipping component is located at the bottom of the support frame and is used to drive the negative pressure adsorption component to rotate the helmet shell that is adsorbed and fixed by 180 degrees, so that the helmet shell is aligned with the contour groove.

[0011] The negative pressure adsorption component is installed on the flipping component and is used to adsorb the safety helmet shell conveyed by the conveyor belt mechanism under negative pressure.

[0012] The transmission component is located between the separate movable seat and the flipping component. When the flipping component drives the helmet shell to complete a 180-degree flipping operation, the flipping component triggers the transmission component to operate. The transmission component drives the separate movable seat to move towards each other and close, and the helmet shell is positioned and constrained by the contour groove.

[0013] As a preferred embodiment of the present invention, the limiting member includes telescopic rods installed on the inner wall of the support bracket and symmetrically distributed thereon. The telescopic rods are fixedly connected to the detachable movable seat, and a spring sleeved on the outside of the telescopic rods is provided between the support bracket and the detachable movable seat.

[0014] As a preferred embodiment of the present invention, the flipping component includes a mounting frame installed at the bottom of the support bracket, a rotating shaft rotatably disposed inside the mounting frame, a rotating frame installed in the middle of the rotating shaft, a limit stop bar installed between the mounting frames located on both sides of the conveyor belt mechanism, a motor installed on one of the mounting frames, and a buffer component disposed between the motor output shaft and the rotating shaft.

[0015] As a preferred embodiment of the present invention, the buffer includes a turntable rotatably connected to the end of the rotating shaft and located within the mounting frame. A fan-shaped buffer cavity is formed in the turntable, and a transmission rod connected to the motor drive shaft is installed at one end of the turntable opposite to the rotating shaft. A lever located within the buffer cavity is installed on the rotating shaft, and the lever is connected to the end of the buffer cavity through an elastic element.

[0016] As a preferred embodiment of the present invention, the negative pressure adsorption component includes an adsorption frame, on which two sets of suction cups are symmetrically distributed, and the adsorption frame is connected to the rotating frame through a first hydraulic rod. The contour groove is provided with a movable groove that matches the adsorption frame.

[0017] As a preferred embodiment of the present invention, the transmission component includes a transmission cavity formed within a support bracket, a transmission shaft rotatably disposed within the transmission cavity and inserted into a mounting bracket, a transmission gear mounted at the top of the transmission shaft, a rack meshing with the transmission gear mounted at the bottom of the separable movable seat, both the transmission gear and the rack being located within the transmission cavity, a transmission bevel gear mounted at the bottom of the transmission shaft, and an incomplete bevel gear capable of meshing with the transmission bevel gear mounted on the outer wall of the turntable.

[0018] As a preferred embodiment of the present invention, it further includes a pressing component, which includes several second hydraulic rods arranged circumferentially on the top plate and corresponding to the conveyor belt mechanism. The telescopic ends of the second hydraulic rods are equipped with lifting frames, and several third hydraulic rods arranged circumferentially are installed on the lifting frames. The telescopic ends of the third hydraulic rods are equipped with inner support blocks.

[0019] As a preferred embodiment of the present invention, the processing table has a discharge port in the middle that is directly opposite to the conveyor belt mechanism.

[0020] The present invention has the following advantages:

[0021] This invention uses a conveyor belt mechanism to transport the properly aligned helmet shell to a negative pressure adsorption component. The negative pressure adsorption component then adsorbs the outer wall of the helmet shell to complete the material removal. Subsequently, a flipping component drives the negative pressure adsorption component and the helmet shell to rotate synchronously by 180 degrees and define their positions. After flipping into place, a transmission component is triggered to drive the detachable moving seats to close in opposite directions, ensuring that the contouring groove precisely matches the inverted helmet shell. Then, a pressing component completes the pressing and assembly of the helmet shell and its inner liner. In normal operation, the detachable moving seats are in a separated state, which can fully avoid the overall movement trajectory of the negative pressure adsorption component and the flipping component, and will not obstruct the workpiece flipping or material transfer. This eliminates component interference problems in the feeding and flipping process, effectively improving the stability of equipment operation and the smoothness of operation. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of a multi-process intelligent assembly device for safety helmets.

[0023] Figure 2 This is a schematic diagram of the structure of a multi-process intelligent assembly device for safety helmets, showing the cooperation between a flipping component and a separate support component.

[0024] Figure 3 This is a schematic diagram of the flipping component and the negative pressure adsorption component in a multi-process intelligent assembly device for safety helmets.

[0025] Figure 4 This is a schematic diagram of the structure of a detachable support component in a multi-process intelligent assembly device for safety helmets.

[0026] Figure 5 This is a schematic diagram of the transmission component in a multi-process intelligent assembly device for safety helmets.

[0027] Figure 6 This is a schematic diagram of the structure of a buffer component in a multi-process intelligent assembly device for safety helmets.

[0028] Figure 7 This is a schematic diagram of the support bracket in a multi-process intelligent assembly device for safety helmets.

[0029] Figure 8 This is a schematic diagram of the detachable movable seat in a multi-process intelligent assembly device for safety helmets.

[0030] Figure 9 This is a schematic diagram of the conveyor belt mechanism in a multi-process intelligent assembly device for safety helmets.

[0031] Figure 10 This is a schematic diagram of the press-fit component in a multi-process intelligent assembly device for safety helmets.

[0032] In the diagram: 110, processing table; 120, support rod; 130, top plate; 140, conveyor belt mechanism; 150, discharge port; 160, bracket; 2. Separable support component; 210, support frame; 220, separable movable seat; 230, limiting component; 231, telescopic rod; 232, spring; 240, contour groove; 3. Tilting component; 310, mounting frame; 320, rotating shaft; 330, rotating frame; 340, limiting stop bar; 350, buffer component; 351, turntable; 352, buffer cavity; 3 53. Transmission rod; 354. Toggle lever; 355. Elastic element; 360. Motor; 4. Negative pressure adsorption component; 410. First hydraulic rod; 420. Adsorption frame; 430. Suction cup; 440. Movable groove; 5. Transmission component; 510. Transmission cavity; 520. Transmission shaft; 530. Transmission gear; 540. Rack; 550. Transmission bevel gear; 560. Incomplete bevel gear; 6. Pressing component; 610. Second hydraulic rod; 620. Lifting frame; 630. Third hydraulic rod; 640. Inner support block. Detailed Implementation

[0033] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0034] Please see Figure 1-3A multi-process intelligent assembly device for safety helmets includes a processing table 110, several circumferentially arranged support rods 120 installed in the middle of the processing table 110, and a top plate 130 installed at the top of the support rods 120. Several circumferentially arranged conveyor belt mechanisms 140 (the conveyor belt is a conventional conveying equipment in the art and will not be described in detail here) are installed on the processing table 110. Several sets of brackets 160 are installed on the processing table 110, each set of brackets 160 includes two units and is symmetrically arranged on both sides of the corresponding conveyor belt mechanism 140. It also includes: a separable support component 2, a flipping component 3, a negative pressure adsorption component 4, and a transmission component 5.

[0035] The detachable support component 2 is disposed on the top of the bracket 160. The detachable support component 2 includes a detachable movable seat 220, a support frame 210, and a limiting member 230. The support frame 210 is fixedly installed on the top of the bracket 160. The limiting member 230 is disposed between the inner wall of the detachable movable seat 220 and the support frame 210. The limiting member 230 is used to provide elastic force to the detachable movable seat 220, so that the detachable movable seat 220 is kept in a detached state under normal conditions and deviates from the flipping path of the flipping component 3 and the negative pressure adsorption component 4, so as to avoid interference when placing the safety helmet shell. The detachable movable seat 220 is provided with a contour groove 240 for placing the safety helmet shell.

[0036] The flipping component 3 is located at the bottom of the support bracket 210 and is used to drive the negative pressure adsorption component 4 to rotate the safety helmet shell that is adsorbed and fixed by 180 degrees, so that the safety helmet shell is aligned with the contour groove 240.

[0037] The negative pressure adsorption component 4 is disposed on the flipping component 3 and is used to adsorb the safety helmet shell conveyed by the negative pressure adsorption conveyor belt mechanism 140.

[0038] The transmission component 5 is located between the separate movable seat 220 and the flipping component 3. When the flipping component 3 drives the helmet shell to complete a 180-degree flipping operation, the flipping component 3 triggers the transmission component 5 to operate. The transmission component 5 drives the separate movable seat 220 to move towards each other and close, and the helmet shell is positioned and constrained by the contour groove 240.

[0039] The conveyor belt mechanism 140 transports the properly aligned helmet shell to the area below the negative pressure adsorption component 4, where the negative pressure adsorption component 4 adsorbs the outer wall of the helmet shell to complete the material removal. Subsequently, the flipping component 3 drives the negative pressure adsorption component 4 and the helmet shell to rotate synchronously by 180 degrees and complete the position setting. After flipping into place, the transmission component 5 is triggered simultaneously, driving the split-type moving seat 220 to close in opposite directions, so that the contour groove 240 is precisely adapted to the inverted helmet shell. Then, the pressing component 6 completes the pressing and assembly of the helmet shell and the inner liner. Under normal conditions, the split-type moving seat 220 is in a separated state, which can fully avoid the overall movement trajectory of the negative pressure adsorption component 4 and the flipping component 3, and will not obstruct the workpiece flipping and material transfer actions, thereby eliminating the component interference problem in the feeding and flipping process and effectively improving the stability of equipment operation and the smoothness of operation.

[0040] Please see Figure 4 In one embodiment, the limiting member 230 includes telescopic rods 231 that are installed on the inner wall of the support bracket 210 and symmetrically distributed. The telescopic rods 231 are fixedly connected to the separate movable seat 220. A spring 232 is provided between the support bracket 210 and the separate movable seat 220 and is sleeved on the outside of the telescopic rods 231. The spring 232 is in a stretched state.

[0041] The separable movable seat 220 has an assembly hole on the side wall facing the support bracket 210 that is adapted to the telescopic rod 231. The telescopic rod 231 passes through the assembly hole and is fixedly connected to the separable movable seat 220. This is used to guide and constrain the movement direction of the separable movable seat 220, so that it can only make linear reciprocating movements along the axial direction of the telescopic rod 231, avoiding deviation or jamming.

[0042] Since the spring 232 is always in a stretched state, in the initial state, the stretched spring 232 will apply an elastic force to the separable movable seat 220 toward the side wall of the support bracket 210, so that the separable movable seat 220 is pulled tight and attached to the inner side wall of the support bracket 210, thereby keeping the left and right sets of separable movable seats 220 in a separated state.

[0043] In this state, the two sets of separate movable seats 220 are located on both sides of the flipping motion path of the flipping component 3 and the negative pressure adsorption component 4, respectively, completely avoiding the movement space of the helmet shell flipping and moving. Structurally, this completely avoids the movement interference between the separate movable seats 220 and the flipping component 3 and the negative pressure adsorption component 4, ensuring that the helmet shell can complete the 180-degree flipping and positioning action without obstruction.

[0044] When the transmission component 5 drives the separable movable seat 220 to close in opposite directions, the separable movable seat 220 overcomes the tension of the spring 232 and moves outward along the telescopic rod 231; when the transmission component 5 unloads the driving force, the elastic tension of the spring 232 can keep the separable movable seat 220 in its initial separated state.

[0045] Please see Figure 2 , Figure 3 , Figure 5 and Figure 6 In one embodiment, the flipping component 3 includes a mounting bracket 310 installed at the bottom of the support bracket 210. A rotating shaft 320 is rotatably arranged inside the mounting bracket 310. A rotating frame 330 is installed in the middle of the rotating shaft 320. A limit stop bar 340 is installed between the mounting brackets 310 on both sides of the conveyor belt mechanism 140. A motor 360 is installed on one of the mounting brackets 310. A buffer 350 is provided between the output shaft of the motor 360 and the rotating shaft 320.

[0046] In the initial state, i.e., the separate movable seat 220 is in the initial separated state, the rotating frame 330 is in a vertical downward state, and the negative pressure adsorption component 4 is located directly above the conveyor belt mechanism 140, so that the negative pressure adsorption component 4 can accurately adsorb the safety helmet shell that has been delivered to the position. When the rotating frame 330 rotates 180 degrees to a vertical upward state, the limiting stop bar 340 will constrain the rotating frame 330 to limit the rotating frame 330 from continuing to rotate and maintain the vertical upward posture, so that the separate movable seat 220 can close, so that the contour groove 240 can limit and fix the safety helmet shell that is adsorbed and fixed by the negative pressure adsorption component 4, and at the same time, it is convenient to continue to drive the transmission component 5 so that the separate movable seat 220 can complete the closing action.

[0047] During actual operation, the conveyor belt mechanism 140 continuously places the properly positioned safety helmet shell onto the conveyor belt mechanism 140, and then transports the safety helmet shell to the negative pressure adsorption position of the negative pressure adsorption component 4. The negative pressure adsorption component 4 adsorbs the safety helmet shell under negative pressure. Subsequently, the equipment controller starts the motor 360, and the power output shaft of the motor 360 is transmitted through the buffer 350 to drive the rotating shaft 320 to rotate. This allows the rotating shaft 320 to drive the rotating frame 330 to rotate 180 degrees, which in turn drives the negative pressure adsorption component 4. The safety helmet shell, which is fixed by adsorption, is rotated 180 degrees until it is fully rotated. The rotating frame 330 then rotates to the limit stop 340 and locks the angle. As the motor 360 continues to drive, the transmission component 5 is triggered through the cooperation of the buffer component 350. This allows the transmission component 5 to drive the two separate movable seats 220 on both sides of the conveyor belt mechanism 140 to move synchronously until they close. This allows the contour groove 240 in the separate movable seat 220 to position the rotated helmet shell, after which the helmet shell and inner liner can be pressed together.

[0048] After the pressing is completed, the equipment controller starts the motor 360 to rotate in the opposite direction, which first causes the separable moving seat 220 to gradually separate and reset. At the same time, the buffer 350 rebounds and resets synchronously. After the separable moving seat 220 completes the separation action and the buffer 350 resets, the flipping component 3 can drive the negative pressure adsorption component 4 to reset and flip 180 degrees, returning to the initial standby position, waiting for the next round of material feeding.

[0049] Furthermore, the buffer 350 includes a turntable 351 rotatably connected to the end of the rotating shaft 320 and located within the mounting bracket 310. The turntable 351 has a fan-shaped buffer cavity 352. A transmission rod 353 connected to the drive shaft of the motor 360 is installed at one end of the turntable 351 relative to the rotating shaft 320. A lever 354 located within the buffer cavity 352 is installed on the rotating shaft 320. The lever 354 is connected to the end of the buffer cavity 352 through an elastic element 355. The specific structure of the elastic element 355 is not limited, as long as it can realize the functions of buffering, accumulating force, and resetting drive within the buffer cavity 352. The elastic element 355 can be set as a torsion spring, a metal spring, or a disc spring, which will not be elaborated here.

[0050] In the initial state, under the elastic force of the elastic element 355, the elastic element 355 pushes the lever 354 so that the lever 354 is located at the end of the buffer cavity 352. When the motor 360 starts, the output shaft of the motor 360 drives the transmission rod 353 to rotate. When the transmission rod 353 rotates, it drives the turntable 351 to rotate. The turntable 351 drives the lever 354 to rotate synchronously through the elastic element 355, thereby driving the rotating shaft 320, the rotating frame 330 and the negative pressure adsorption component 4 to complete the flipping action together.

[0051] When the rotating frame 330 rotates 180 degrees to the limit stop 340, the rotating frame 330 is immediately locked and cannot continue to deflect due to the limit stop 340, and the position of the lever 354 is fixed. The motor 360 continues to drive the transmission rod 353 to rotate, which drives the turntable 351 to continue to rotate relative to the lever 354, so that the turntable 351 begins to squeeze the elastic element 355 between the lever 354 and the end of the buffer cavity 352. During this process, the transmission component 5 is driven synchronously to complete the closing of the two separate movable seats 220.

[0052] After the helmet shell and inner liner are pressed together, the equipment controller drives the motor 360 to rotate in the opposite direction, causing the turntable 351 to start rotating in the opposite direction. The transmission component 5 drives the detachable moving seat 220 to separate and reset, avoiding the flipping path of the flipping component 3 and the negative pressure adsorption component 4, thus preventing motion interference. When the detachable moving seat 220 has reset, the elastic element 355 rebounds and resets, and the lever 354 is once again in contact with the end of the buffer cavity 352. Then, the rotating shaft 320 can be driven to rotate in the opposite direction, driving the rotating frame 330 and the negative pressure adsorption component 4 to rotate back to their original positions and return to their initial standby posture.

[0053] Please see Figure 3 In one embodiment, the negative pressure adsorption component 4 includes an adsorption frame 420, on which two sets of symmetrically distributed suction cups 430 are mounted, and the adsorption frame 420 is connected to the rotating frame 330 through a first hydraulic rod 410.

[0054] Before the safety helmet shell is conveyed by the conveyor belt mechanism 140, the external robot arm pre-calibrates and precisely positions the placement angle, position, and assembly posture of the safety helmet shell. This ensures that the adsorption points on the outer wall of the shell match the positions of the two symmetrically arranged suction cups 430 on the adsorption frame 420, and that the contact surfaces are compatible. This ensures that the suction cups 430 can reliably adsorb and grip the outer wall of the shell with the best contact area and stable negative pressure suction, avoiding loosening, displacement, or detachment of the adsorption due to posture deviation. This provides a stable gripping foundation for subsequent flipping, positioning, and pressing processes.

[0055] The first hydraulic rod 410 between the suction frame 420 and the rotating frame 330 is used to adjust the distance between the safety helmet shell after it is suctioned and fixed by the suction cup 430 and the rotation axis of the rotating frame 330. This allows the suctioned helmet shell to be separated from the conveyor belt mechanism 140 and smoothly carried out the flipping operation, or it can accurately send the flipped helmet shell into the contour groove 240.

[0056] Furthermore, the contour groove 240 is provided with a movable groove 440 that matches the adsorption rack 420.

[0057] When the helmet shell is positioned within the contour groove 240, the movable groove 440 provides clearance for the suction cup 420 and the first hydraulic rod 410, preventing the structures from rubbing against each other and ensuring the smooth completion of the flipping and positioning action. Furthermore, the vertical suction cup 420 can slide up and down along the movable groove 440, facilitating the extension and retraction of the first hydraulic rod 410 to adjust the height of the helmet shell adsorbed by the suction cup 430 within the contour groove 240, thus ensuring a proper fit between the helmet shell and the contour groove 240.

[0058] Please see Figure 5 In one embodiment, the transmission component 5 includes a transmission cavity 510 formed within the support bracket 210. A transmission shaft 520, which passes through the mounting bracket 310, is rotatably disposed within the transmission cavity 510. A transmission gear 530 is mounted at the top of the transmission shaft 520. A rack 540, which meshes with the transmission gear 530, is mounted at the bottom of the separable movable seat 220. Both the transmission gear 530 and the rack 540 are located within the transmission cavity 510. A transmission bevel gear 550 is mounted at the bottom of the transmission shaft 520. An incomplete bevel gear 560, which meshes with the transmission bevel gear 550, is mounted on the outer wall of the turntable 351.

[0059] In the initial state, the separable movable seat 220 is in the initial state of separation, and the rotating frame 330 is in a vertical downward position. In this state, the incomplete bevel gear 560 and the transmission bevel gear 550 are in a misaligned state and there is no power engagement transmission. When the rotating frame 330 rotates 180 degrees to a vertical upward position and is locked by the limit stop 340, the incomplete bevel gear 560 begins to mesh with the transmission bevel gear 550. Thus, the separable movable seat 220 can be driven to close through the transmission gear 530 and rack 540 structure.

[0060] Specifically, after the negative pressure adsorption component 4 completes the adsorption and fixation of the safety helmet shell on the conveyor belt mechanism 140, the motor 360 starts to drive the rotating shaft 320 to rotate through the buffer component 350, so that the rotating frame 330 starts to rotate 180 degrees. When the rotating frame 330 rotates to the vertical and completes the 180-degree rotation, the rotating frame 330 is limited by the limiting stop bar 340, and the incomplete bevel gear 560 starts to mesh with the transmission bevel gear 550. As the motor 360 continues to drive, the turntable 351 continues to drive the incomplete bevel gear 560 to rotate, thereby driving the transmission bevel gear 550 to rotate. When the transmission bevel gear 550 rotates, it can drive the transmission shaft 520 to rotate synchronously. When the transmission shaft 520 rotates, it will drive the transmission gear 530 to rotate synchronously, so that the transmission gear 530 can drive the rack 540 and drive the separate moving seat 220 to close. Thus, the closed contour groove 240 can perform contour positioning on the rotated safety helmet shell.

[0061] Please see Figure 1 and Figure 10 In one embodiment, the device further includes a pressing component 6. The pressing component 6 includes several second hydraulic rods 610 arranged circumferentially on the top plate 130 and corresponding to the conveyor belt mechanism 140. The telescopic ends of the second hydraulic rods 610 are equipped with lifting frames 620. Several third hydraulic rods 630 arranged circumferentially are installed on the lifting frames 620. The telescopic ends of the third hydraulic rods 630 are equipped with inner support blocks 640.

[0062] The pressing component 6 is used to internally support and fix the safety helmet liner, and to apply pressure to the fixed safety helmet liner so that the safety helmet shell and the liner can be pressed and engaged in the slot seat. The liner is fed by a robot.

[0063] During operation, while the helmet shell is positioned and locked, the second hydraulic rod 610 extends and drives the overall pressing mechanism downward, so that the inner support block 640 enters the inner liner below the pressing component 6. Then, the third hydraulic rod 630 drives the inner support block 640 to expand outward, tightening the inner liner from the inside to achieve pre-fixation, and fine-tuning the inner liner so that the inner liner is aligned with the helmet shell, making it easy to snap on.

[0064] Subsequently, the second hydraulic rod 610 drives the overall pressing mechanism to move the inner liner down synchronously, smoothly pressing and assembling the inner liner into the inside of the cap shell, completing the tight assembly of the inner liner and the cap shell.

[0065] Please see Figure 9 In one embodiment, the processing table 110 has a discharge port 150 in the middle that is directly opposite the conveyor belt mechanism 140.

[0066] The conveyor belt mechanism 140 transports the helmet shell without the inner liner to the negative pressure adsorption component 4 for loading and positioning; after the inner liner is pressed and assembled, the finished helmet shell returns to the conveyor belt mechanism 140 after being reset by the flipping mechanism, and is then transported by the conveyor belt to the discharge port 150 for discharge.

[0067] The working principle of this invention is as follows: In the initial standby state, under the elastic tension of the spring 232, the two separate movable seats 220 are separated from each other and distributed on both sides of the flipping component 3 and the negative pressure adsorption component 4, so as to make enough room for movement; the rotating frame 330 is kept in a vertical downward posture, the negative pressure adsorption component 4 is suspended directly above the conveyor belt mechanism 140, the transmission component 5 is in a disconnected state, and all components of the whole machine are in position and ready to be used.

[0068] After the operation starts, the robot arm pre-calibrates the placement posture of the safety helmet shell, and the conveyor belt mechanism 140 smoothly transports the helmet shell with a regular posture to the negative pressure adsorption station; the two sets of suction cups 430 on the adsorption frame 420 adhere to the outer wall of the helmet shell to generate negative pressure suction and firmly grasp the workpiece; then the first hydraulic rod 410 slightly extends and retracts to adjust the distance between the helmet shell and the rotation axis, so that the helmet shell is separated from the surface of the conveyor belt and prepared for the flipping action.

[0069] The equipment controller issues a command to start the motor 360. The power of the motor 360 drives the rotating shaft 320 and the rotating frame 330 to rotate synchronously via the buffer 350, causing the cap shell that is fixed by adsorption to rotate 180 degrees. When the rotating frame 330 rotates to the vertical upward position, it touches the limit stop bar 340 to lock the angle and cannot continue to deflect. At the same time, the incomplete bevel gear 560 on the outer wall of the turntable 351 rotates synchronously to the meshing position and meshes with the transmission bevel gear 550 at the bottom of the transmission shaft 520, and the transmission passage is connected.

[0070] After the rotating frame 330 stops rotating at the limit, the motor 360 continues to output power. The turntable 351 rotates relative to the fixed lever 354, squeezing the internal elastic element 355 to store power. This allows the transmission bevel gear 550 and the incomplete bevel gear 560 to drive the transmission shaft 520 to rotate. Then, through the meshing transmission gear 530 and rack 540, the transmission shaft 520 is driven to pull the two separate movable seats 220 to move towards each other and close.

[0071] After closing, the contour groove 240 covers the cap shell from the outside, forming a double limiting structure with the help of negative pressure adsorption, which firmly fixes the cap shell in the inverted state; the movable groove 440 opened on the inner side of the contour groove 240 can avoid the adsorption frame 420 and the first hydraulic rod 410, so as to avoid structural scraping and jamming. At the same time, it can be used with hydraulic telescopic adjustment to finely adjust the vertical height of the cap shell, ensuring that the cap shell and the groove are accurately fitted and positioned.

[0072] While the cap shell is positioned, the third hydraulic rod 630 of the pressing component 6 expands outwards, driving the inner support block 640 to tighten the inner liner from the inside, achieving inner support clamping. Then, the second hydraulic rod 610 extends downwards, driving the lifting frame 620 to descend to the assembly area inside the cap shell. The pressing structure is pressed down and pushed forward as a whole, tightly pressing the inner liner onto the inner wall of the cap shell, completing the inner liner assembly process.

[0073] After the pressing process is completed, the controller controls the motor 360 to rotate in reverse; the buffer 350 springs back to its original position, the turntable 351 rotates in reverse, and through the transmission component 5, it drives the two separate movable seats 220 to separate and return to their original positions, making way for the flipping motion path again; after the separate movable seats 220 are completely separated and the buffer 350 is reset to its original position, the motor 360 continues to drive the rotating shaft 320 to rotate 180 degrees, so that the rotating frame 330 and the negative pressure adsorption component 4 are reset to their initial vertical downward position.

[0074] Subsequently, the negative pressure adsorption component 4 releases the negative pressure adsorption on the helmet shell, allowing the assembled finished helmet shell to fall back to the conveyor belt mechanism 140, which then transports it to the discharge port 150 in the middle of the processing table 110 for discharge. This process is repeated continuously to complete the batch automated assembly of safety helmets.

[0075] The power supply and control of the electrical equipment in this application are all existing technologies and will not be elaborated upon here. The control of each component can be achieved using a PLC controller disclosed in the prior art, and the model and circuit connection of each component are not specifically limited. All electrical equipment involved are existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The scope of protection of this invention does not involve improvements to the software and methods.

[0076] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0077] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-process intelligent assembly device for safety helmets, comprising a processing table, a plurality of support rods arranged in a circle are installed in the middle of the processing table, and a top plate is installed at the top end of the support rods; a plurality of conveying belt mechanisms arranged in a circle are installed on the processing table, characterized in that, The processing table is equipped with several sets of brackets. Each set of brackets includes two individual units and is symmetrically arranged on both sides of the corresponding conveyor belt mechanism. It also includes: a separable support component, a flipping component, a negative pressure adsorption component, and a transmission component. The detachable support component is located on the top of the bracket. The detachable support component includes a detachable movable seat, a support frame, and a limiting member. The support frame is fixedly installed on the top of the bracket. The limiting member is located between the detachable movable seat and the inner wall of the support frame. The limiting member is used to provide elastic force to the detachable movable seat, keeping the detachable movable seat in a detached state under normal conditions and deviating from the flipping path of the flipping component and the negative pressure adsorption component, so as to avoid interference when placing the safety helmet shell. The detachable movable seat has a contoured groove for placing the safety helmet shell. The flipping component is located at the bottom of the support frame and is used to drive the negative pressure adsorption component to rotate the helmet shell that is adsorbed and fixed by 180 degrees, so that the helmet shell is aligned with the contour groove. The negative pressure adsorption component is installed on the flipping component and is used to adsorb the safety helmet shell conveyed by the conveyor belt mechanism under negative pressure. The transmission component is located between the separate movable seat and the flipping component. When the flipping component drives the helmet shell to complete a 180-degree flipping operation, the flipping component triggers the transmission component to operate. The transmission component drives the separate movable seat to move towards each other and close, and the helmet shell is positioned and constrained by the contour groove.

2. The multi-process intelligent assembly device for safety hat of claim 1, wherein, The limiting component includes telescopic rods installed on the inner wall of the support bracket and symmetrically distributed. The telescopic rods are fixedly connected to the detachable movable seat, and a spring sleeved on the outside of the telescopic rods is provided between the support bracket and the detachable movable seat.

3. The multi-process intelligent assembly device of safety helmet according to claim 2, characterized in that, The flipping component includes a mounting frame installed at the bottom of the support bracket. A rotating shaft is rotatably installed inside the mounting frame. A rotating frame is installed in the middle of the rotating shaft. A limit stop is installed between the mounting frames on both sides of the conveyor belt mechanism. A motor is installed on one of the mounting frames. A buffer is provided between the motor output shaft and the rotating shaft.

4. The multi-process intelligent assembly device for safety hat of claim 3, wherein, The buffer includes a turntable rotatably connected to the end of the rotating shaft and located in the mounting frame. The turntable has a fan-shaped buffer cavity. A transmission rod connected to the motor drive shaft is installed at one end of the turntable opposite to the rotating shaft. A lever located in the buffer cavity is installed on the rotating shaft. The lever is connected to the end of the buffer cavity through an elastic element.

5. The multi-process intelligent assembly device for safety hat of claim 1, wherein, The negative pressure adsorption component includes an adsorption frame with two symmetrically distributed suction cups mounted on it, and the adsorption frame is connected to the rotating frame via a first hydraulic rod.

6. The multi-process intelligent assembly device of safety helmet according to claim 5, wherein, The contour groove has a movable groove that matches the adsorption rack.

7. The intelligent assembly device for multi-process safety helmets according to claim 4, characterized in that, The transmission component includes a transmission cavity opened in the support bracket, a transmission shaft rotatably disposed in the transmission cavity and inserted into the mounting bracket, a transmission gear installed at the top of the transmission shaft, a rack meshing with the transmission gear installed at the bottom of the separable movable seat, both the transmission gear and the rack being located in the transmission cavity, a transmission bevel gear installed at the bottom of the transmission shaft, and an incomplete bevel gear capable of meshing with the transmission bevel gear installed on the outer wall of the turntable.

8. The intelligent assembly device for multi-process safety helmets according to claim 1, characterized in that, It also includes a pressing component, which includes several circumferentially arranged second hydraulic rods installed on the top plate and corresponding to the conveyor belt mechanism. The telescopic ends of the second hydraulic rods are equipped with lifting frames, and several circumferentially distributed third hydraulic rods are installed on the lifting frames. The telescopic ends of the third hydraulic rods are equipped with inner support blocks.

9. The intelligent assembly device for multi-process safety helmets according to claim 1, characterized in that, The processing table has a discharge port in the middle that is directly opposite the conveyor belt mechanism.

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