Automatic inserting and mounting equipment for bulb filament holder

Abstract

The application discloses a lamp bulb filament support automatic inserting and assembling equipment and relates to the technical field of lamp bulb assembling. The equipment comprises a rotating disc type assembling device and a clamping and blanking manipulator. The clamping and blanking manipulator comprises a mounting frame and a clamping hand. The clamping hand comprises a base, two sliding seats, two sliding blocks, two clamping parts, a driving assembly and a buffer assembly. The two sliding seats are fixed symmetrically on the base, and the two sliding blocks are slidably arranged on the sliding seats respectively. The two clamping parts are fixed above the sliding blocks respectively and are used for clamping objects. The driving assembly is used for driving the two sliding blocks to move synchronously and reciprocally in the clamping direction. The buffer assembly is arranged on each clamping part. The lamp bulb filament support automatic inserting and assembling equipment can realize multi-section self-adaptive adjustment and overall pre-adjustment of clamping force, effectively protects the lamp bulb while reliably clamping, and can be flexibly adapted to various models, and the structure is simple and reliable.

Description

Technical Field

[0001] This invention relates to the field of light bulb assembly technology, and in particular to an automatic light bulb filament holder insertion device. Background Technology

[0002] The automatic bulb filament holder insertion equipment belongs to the field of automated assembly technology. Its core typically includes a rotary assembly mechanism. In this process, a rotary table driven by a divider carries multiple workstation fixtures and rotates intermittently, sequentially assembling and inserting small parts such as the filament holder at each stationary workstation, ultimately integrating multiple parts into a single unit. The assembled bulb is then gripped and unloaded by a dedicated robotic arm. This robotic arm, usually driven by a cylinder and fixedly mounted on the equipment's worktable, uses its end-effector gripping mechanism to grasp the bulb and remove it from the fixture.

[0003] In existing technologies, the reliability of the clamping and unloading process is crucial in automated insertion operations like light bulbs. Current robotic arm structures face common challenges when dealing with fragile workpieces. On one hand, to achieve a stable grip and prevent slippage, the robotic arm needs to provide sufficient clamping force; on the other hand, to avoid excessive clamping force leading to bulb shell breakage or filament deformation, the clamping action must possess good flexibility and cushioning. Traditional clamping mechanisms often use fixed elastic buffers or simple cylinder direct drives, resulting in a constant and uniform clamping force. This makes it difficult to provide differentiated optimal clamping force at different stages of initial contact, stable gripping, and final locking, easily causing initial impact damage or weak end-grip. Furthermore, for light bulb varieties with different materials, sizes, or brittleness, the single buffer hardness lacks adjustability, resulting in limited equipment adaptability and protective effectiveness.

[0004] Therefore, the existing technology still has shortcomings and deficiencies. How to provide an assembly device that can both flexibly protect fragile light bulbs and reliably hold them is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic bulb filament bracket insertion device, which solves the technical problem that the existing clamping mechanism in bulb filament bracket assembly is difficult to balance the flexible protection and reliable gripping of fragile bulbs due to its single clamping force and lack of dynamic and static adjustability.

[0006] To achieve the above objectives, the present invention provides an automatic bulb filament bracket insertion device, including a rotary assembly device and a gripping and unloading robot; the gripping and unloading robot includes an mounting frame and a clamping hand;

[0007] The gripper includes a base, two slides, two sliders, two gripping parts, a drive assembly, and a buffer assembly. The two slides are symmetrically fixed to the base, and the two sliders are slidably sleeved on one slide and can slide along the gripping direction.

[0008] Two clamping parts are fixed above a slider to clamp objects; a driving component is used to drive the two sliders to move synchronously in opposite directions and back directions along the clamping direction.

[0009] The buffer assembly is provided on each clamping part, and includes a damping cylinder fixed to the clamping part, an adjustable piston slidably disposed in the damping cylinder, a telescopic rod connected to the adjustable piston, and a contact plate fixed to the outer end of the telescopic rod;

[0010] The adjustable piston is dynamically sealed to the inner wall of the damping cylinder and is provided with an overflow port. The effective flow area of ​​the overflow port can be changed as the adjustable piston moves in the damping cylinder to adjust the damping force of the buffer assembly.

[0011] Preferably, the drive assembly includes a turntable, a connecting rod, and a slide, with the turntable rotatably mounted on the base and located between two sliders;

[0012] There are two connecting rods symmetrically distributed on both sides of the turntable. The first end of each connecting rod is connected to the outer periphery of the turntable through the drive shaft, and the second end is connected to a slider through the limiting shaft. The slide groove is opened on the slide block and extends along the clamping direction. The bottom end of the limiting shaft is inserted into the slide groove and can slide therein.

[0013] Preferably, the adjustable piston includes a piston body and an adjusting disc, with the piston body fixedly connected to the telescopic rod;

[0014] The adjusting disc is rotatably mounted on the end of the piston body facing the inner cavity of the damping cylinder, and is dynamically sealed to the end face of the piston body;

[0015] The piston body and the adjusting plate are respectively provided with corresponding flow ports. Rotating the adjusting plate can change the relative position of the two flow ports to adjust the effective flow area.

[0016] Preferably, a fixed semi-annular groove is provided on the piston body, and a movable semi-annular groove is provided on the adjusting plate;

[0017] When the regulating disc rotates, the overlapping area of ​​the movable semi-annular groove and the fixed semi-annular groove changes, thereby changing the effective flow area of ​​the flow port.

[0018] Preferably, the inner wall of the damping cylinder is provided with a drive groove, and a plug shaft is fixed on the outer periphery of the adjusting disc, with the plug shaft inserted into the drive groove;

[0019] The drive groove extends along the axial direction of the damping cylinder and is divided into at least two segments in the axial direction. The at least two drive groove segments are located at different positions in the circumferential direction and are connected by a transition segment between adjacent segments.

[0020] When the adjustable piston moves axially within the damping cylinder, the insert shaft slides along the drive groove and is driven at the transition section to rotate the adjusting disc.

[0021] Preferably, the drive groove includes a starting section, a middle section, and a final section distributed sequentially along the axial direction;

[0022] When the insert shaft is located in the initial section, the effective flow area of ​​the flow port is a first preset value; when the insert shaft is located in the middle section, the effective flow area of ​​the flow port is a second preset value that is less than the first preset value.

[0023] When the insertion shaft is at the end, the effective flow area of ​​the flow port is a third preset value that is less than the second preset value.

[0024] Preferably, it also includes a rotation limiter for adjusting and locking the initial angular position of the adjusting disc relative to the piston body.

[0025] Preferably, the rotation limiting component includes a connecting shaft, an inner gear plate, an outer ring, a toothed insert, and an adjusting shaft. One end of the connecting shaft is fixed concentrically with the adjusting plate, and the other end passes through the piston body and the telescopic rod and extends to the outside of the contact plate.

[0026] The inner gear disc is fixed coaxially with the connecting shaft; the outer ring is fixed to the end of the telescopic rod, the inner gear disc is rotatably set inside the outer ring, and the insert teeth are set inside the outer ring and form a one-way meshing with the tooth grooves on the outer periphery of the inner gear disc;

[0027] The adjusting shaft is connected to the internal gear plate, and a knob is provided at its end.

[0028] Preferably, it also includes a return spring, which is sleeved on the outside of the telescopic rod and its two ends abut against the contact plate and the clamping part, respectively.

[0029] Preferably, the slider has two longitudinally arranged through slots along its sliding direction. The lower through slot is fitted outside the slide block, and the upper through slot is connected to the limiting shaft of the drive assembly.

[0030] The present invention has the following advantages:

[0031] (1) Compared with the above-mentioned background technology, the automatic bulb filament bracket insertion device provided by the present invention achieves adaptive control of the clamping force for the bulb through a mechanical segmented damping adjustment mechanism. Its core lies in the fact that the adjustable piston integrated inside the elastic buffer works in concert with the specific contour drive groove to convert the linear displacement of the contact plate during the clamping process into the staged rotation of the adjustment disk, thereby precisely controlling the opening of the damping fluid outlet, so that the system can automatically switch between the three segments of "low, medium and high" in a single clamping stroke. This mechanical feedback mechanism enables the clamping action to automatically simulate the process of "gentle contact to protect the bulb shell, stable force increase to firmly grasp the bulb body, and finally locking to prevent slippage", which ensures the reliability of the gripping while avoiding damage to the filament bracket or glass bulb shell due to impact.

[0032] (2) Compared with the above-mentioned background technology, the automatic bulb filament holder insertion equipment provided by the present invention can pre-adjust the initial opening of the flow port by rotating the limiting component, and can move the reference level of the above three clamping forces as a whole. This pre-adjustment function allows the same robot arm to flexibly adapt to different types of bulbs of different materials, sizes or brittleness on the production line without changing the hardware, such as from more brittle glass bulbs to more resilient plastic bulbs. Without relying on complex electrical control and sensors, the process window of the equipment is significantly broadened, and the adaptability to various bulb models and the safety of the assembly process are improved. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 This is a schematic diagram of the clamping hand structure of the present invention;

[0036] Figure 3 This is a schematic diagram of the turntable structure of the present invention;

[0037] Figure 4 This is a schematic diagram of the slider and slide block structure of the present invention;

[0038] Figure 5 This is another schematic view of the slider and slide block of the present invention;

[0039] Figure 6 This is a schematic diagram of the internal structure of the damping cylinder of the present invention;

[0040] Figure 7 For the present invention Figure 6 A magnified schematic diagram of the structure at point A;

[0041] Figure 8 This is a schematic diagram of the adjusting disc structure of the present invention;

[0042] Figure 9 This is a schematic diagram of the planar structure of the internal drive groove of the damping cylinder of the present invention;

[0043] Figure 10 For the present invention Figure 6 A magnified schematic diagram of the structure at point B;

[0044] Figure 11 This is a schematic diagram of the inner turntable and gear structure of the present invention.

[0045] In the diagram: 1. Clamping hand; 2. Cylinder; 3. Through slot; 4. Contact plate; 5. Elastic buffer; 6. Return spring; 7. Rotation limiter; 8. Knob; 9. Drive slot; 10. Transition section; 11. Insert shaft; 12. Turntable assembly equipment; 13. Mounting frame; 101. Base; 102. Drive assembly; 103. Slide rail; 104. Clamping part; 1031. Slide block; 1032. Slider; 1021. Turntable; 1022. Connecting rod; 1 023, Drive shaft; 1024, Limiting shaft; 1025, Slide groove; 1041, Base plate; 1042, Clamping plate; 501, Damping cylinder; 502, Adjustable piston; 503, Flow port; 504, Telescopic rod; 5021, Piston body; 5022, Adjusting disc; 5023, Connecting shaft; 5031, Fixed semi-annular groove; 5032, Movable semi-annular groove; 701, Outer ring; 702, Toothed gear; 703, Internal gear disc; 704, Adjusting shaft. Detailed Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0048] This invention provides an automatic bulb filament bracket insertion device, which realizes multi-segment adaptive adjustment and overall pre-adjustment of clamping force. It effectively protects the bulb while reliably clamping it, and can flexibly adapt to various models. The structure is simple and reliable. It can solve the problem that the clamping mechanism in the assembly of bulb filament brackets in the prior art has a single clamping force and lacks dynamic and static adjustability, making it difficult to take into account both flexible protection and reliable gripping of fragile bulbs.

[0049] Please refer to this as well. Figures 1 to 11 The present invention provides an automatic bulb filament bracket insertion device, which includes a turntable assembly device. The turntable assembly process is driven by a dividing disc rotating disk to drive the fixtures at each station to complete the assembly of various parts. During the movement, multiple small parts are assembled together. After the assembly is completed, a robotic arm is used to pick up and unload the parts. The robotic arm is composed of cylinders and is installed on the worktable of the turntable assembly device. It is used to hold the bulb and then insert it for assembly.

[0050] Specifically, the gripping and unloading robot consists of a gripper and a mounting frame. The mounting frame is fixed to the worktable of the assembly equipment, while the gripper is mounted longitudinally on the worktable via a cylinder. The gripper 1 is mounted at the end of the cylinder 2. The cylinder 2 can be designed as a multi-axis structure to allow the gripper 1 to be adjusted in multiple angles. The gripper 1 consists of at least two gripping parts 104 that can move horizontally in opposite directions, thereby realizing the gripping operation of the light bulb.

[0051] Specifically, please refer to the following: Figures 1 to 4 The gripper 1 includes a base 101, a drive assembly 102, a slide rail 103, and gripping parts 104. The base 101 is fixedly mounted on the end of the cylinder 2, and the gripping parts 104 are slidably disposed on both sides above it via the slide rail 103. The drive assembly 102 is located below the base 101 and is used to drive the gripping parts 104 on the slide rail 103 to move horizontally, thereby realizing the gripping and releasing actions.

[0052] Further explanation: The slide rail component 103 includes a slide block 1031 and a slider 1032. The number of slide blocks 1031 is the same as the number of clamping parts 104. In this embodiment, both slide blocks 1031 and clamping parts 104 are provided in pairs. The two slide blocks 1031 are respectively fixed on both sides of the base 101, and a slider 1032 is slidably sleeved on each slide block 1031. The slider 1032 can slide relative to the slide block 1031 along the clamping direction.

[0053] The slider 1032 has two through slots 3 extending along its sliding direction, arranged longitudinally. The lower through slot 3 is fitted onto the outside of the slide block 1031 to guide and limit the movement of the slider 1032; the upper through slot 3 is used to connect with the drive assembly 102 to transmit power to drive the slider 1032 to perform clamping motion. In this embodiment, the drive assembly 102 is used to drive the two sliders 1032 to perform synchronous reciprocating motion along the clamping direction. Various transmission methods can be used (such as screw transmission), but a crank mechanism is selected here to achieve this motion.

[0054] Please refer to this as well. Figures 2 to 5 The drive assembly 102 includes a turntable 1021, a connecting rod 1022, a drive shaft 1023, a limiting shaft 1024, and a groove 1025. The turntable 1021 is rotatably mounted above the base 101, and its rotational driving force is increased by a drive motor (not shown in the figure). The turntable 1021 is located at the center between two sliders 1032 and is connected to the sliders 1032 on both sides via the connecting rod 1022. Specifically, the two ends of the connecting rod 1022 are rotatably connected to the drive shaft 1023 and the limiting shaft 1024, respectively, along the longitudinal direction. Both shafts are perpendicular to the connecting rod 1022. The drive shaft 1023 is connected to the outer circumference of the turntable 1021, and the bottom end of the limiting shaft 1024 is inserted into the groove 1025 opened on the slider 1031. The groove 1025 extends through the upper and lower end faces of the slide block 1031 along the clamping direction, allowing the limiting shaft 1024 to slide within it, thus restricting its movement trajectory. The bottom end of the limiting shaft 1024 is connected to the bottom wall of the through groove 3 above the slider 1032. When the drive motor rotates, it drives the turntable 1021 to rotate, causing the slider 1032 to reciprocate via the connecting rod 1022. By arranging the connecting rod 1022, the sliders 1032 on both sides can move towards or away from each other when the turntable 1021 rotates, thereby completing the clamping or releasing action.

[0055] The clamping part 104 consists of a base plate 1041 fixed above the slider 1032 and a clamping plate 1042 mounted above the base plate 1041. Considering that direct rigid contact between the clamping plate 1042 and the bulb may damage the bulb, the clamping plate 1042 is designed to have an elastic buffer function in this embodiment.

[0056] Specifically, contact plates 4 are provided on opposite sides of the two clamping plates 1042. The contact plates 4 are connected to the clamping plates 1042 by elastic buffers 5 to provide a cushioning effect. During clamping, the two clamping plates 1042 move towards each other. The contact plates 4 first contact the bulb, and then compress the elastic buffers 5 as the clamping plates 1042 continue to advance, thereby gradually increasing the clamping force and preventing damage to the bulb from instantaneous rigid impact.

[0057] To further optimize the clamping process, this embodiment designs the elastic buffer 5 as a segmented buffer structure to adapt to the different force requirements at each stage of clamping. Specifically, in the initial clamping stage, the contact plate 4 provides a gentle clamping force after contacting the bulb, avoiding excessive initial pressure; subsequently, the clamping force is gradually increased until it reaches stability. Therefore, not only is an elastic buffer 5 provided between the contact plate 4 and the clamping plate 1042, but it also possesses variable hardness characteristics, achieving a gradual transition from soft to hard during clamping.

[0058] Specifically, please refer to the following: Figure 1 , Figures 6 to 9 The elastic buffer 5 includes a damping cylinder 501, an adjustable piston 502, an outlet 503, and a telescopic rod 504. The damping cylinder 501 is fixed to the clamping plate 1042, and the adjustable piston 502 is slidably mounted inside it. The open end of the damping cylinder 501 faces the direction between the two clamping plates 1042. A telescopic rod 504 is fixed to the open end of the adjustable piston 502, with one end extending outside the damping cylinder 501 and fixedly connected to the corresponding contact plate 4. A return spring 6 is sleeved on the outside of the telescopic rod 504, located between the contact plate 4 and the clamping plate 1042, used to maintain the distance between the contact plate 4 and the clamping plate 1042 under normal conditions. During clamping, the contact plate 4 is pressed and moves, compressing the return spring 6, while the piston moves within the damping cylinder 501, adjusting the damping force through the outlet 503. The flow cross-sectional area of ​​the outlet 503 can change with the movement of the piston.

[0059] The adjustable piston 502 includes a piston body 5021, an adjusting disc 5022, and a connecting shaft 5023. The piston body 5021 is fixed to one end of the telescopic rod 504, and the adjusting disc 5022 is rotatably mounted on the other end. The connecting shaft 5023 is concentrically fixed to the side of the adjusting disc 5022 facing the piston body 5021. The connecting shaft 5023 is rotatably connected to the piston body 5021, and the adjusting disc 5022 and the end face of the piston body 5021 are in contact and maintain a dynamic seal. Both the adjusting disc 5022 and the piston body 5021 have flow ports 503. The effective flow area of ​​the flow ports 503 can be adjusted in real time by rotating the adjusting disc 5022.

[0060] The flow port 503 consists of a fixed semi-annular groove 5031 and a movable semi-annular groove 5032. The fixed semi-annular groove 5031 is formed on the piston body 5021, and is a concentric semi-annular structure that penetrates both ends of the piston body 5021. The corresponding movable semi-annular groove 5032 is formed on the adjusting plate 5022, and is also a concentric semi-annular structure that penetrates both ends of the adjusting plate 5022. When the movable semi-annular groove 5032 is offset from the fixed semi-annular groove 5031 in the end face view of the piston body 5021, the two overlap only slightly, and the effective area of ​​the flow port 503 is at its minimum. When they are fully overlapped, they form a complete semi-annular channel, and the flow area is at its maximum. To control the rotation of the adjusting plate 5022 in real time, a shaft 11 is fixed to the outer circumference of the adjusting plate 5022, and a drive groove 9 is provided at a corresponding position on the inner wall of the damping cylinder 501.

[0061] The drive groove 9 extends axially along the damping cylinder 501 and is divided into three sections. Each section is positioned differently in the circumferential direction, and the sections are connected by a transition section 10 that extends both axially and circumferentially. The insert shaft 11 is inserted into the drive groove 9. When the adjustable piston 502 is at the open end of the damping cylinder 501, the telescopic rod 504 is in its maximum extended position, the return spring 6 is extended, and the insert shaft 11 is located in the initial section of the drive groove 9. At this time, the overlapping area of ​​the movable semi-annular groove 5032 and the fixed semi-annular groove 5031 is the largest, the area of ​​the flow port 503 is the largest, the damping force is small, and the clamping force is gentle. As clamping progresses, the adjustable piston 502 gradually moves inward, and the insert shaft 11 enters the middle section of the drive groove 9 through the transition section 10. The adjusting disk 5022 rotates at a certain angle, reducing the overlapping area of ​​the two semi-annular grooves, increasing the damping force, and making the buffer stiffer. Finally, the insert shaft 11 enters the third section of the drive groove 9, the flow port 503 is further reduced, and the stiffness of the buffer continues to increase, thereby achieving a greater clamping force. This system enables three-stage clamping force adjustment.

[0062] In addition, to further enhance adjustability, please refer to the following: Figure 6 , Figure 10 as well as Figure 11 In this embodiment, one end of the connecting shaft 5023 extends to the outside of the telescopic rod 504 and passes through the contact plate 4, with a rotation limiter 7 fixed at its end.

[0063] The rotation limiting component 7 includes an outer ring 701, a toothed insert 702, an inner geared disc 703, and an adjusting shaft 704. The outer ring 701 is fixed to the end of the telescopic rod 504, and the inner geared disc 703 is rotatably mounted at its center. The inner geared disc 703 is concentrically fixed to the connecting shaft 5023. The inner ring 701 has radially elastically telescopic toothed inserts 702, which mesh with multiple tooth grooves distributed on the outer circumference of the inner geared disc 703, and the meshing structure is unidirectional. The adjusting shaft 704 is fixed at the center of the inner geared disc 703, and a knob 8 is mounted at the end of the adjusting shaft 704. By rotating the knob 8, the inner geared disc 703 can be driven to rotate, thereby driving the connecting shaft 5023 to rotate. The cooperation between the gear 702 and the internal gear plate 703 allows the operator to switch gears and provide feedback on the rotation angle when turning the knob 8, thus enabling the operator to more accurately control the rotation angle of the connecting shaft 5023. Therefore, the initial overlap angle between the movable semi-annular groove 5032 and the fixed semi-annular groove 5031 is pre-adjusted, and the initial softness and hardness of the buffer are adjusted, making the adjustment selection more flexible and diverse.

[0064] In this embodiment, during operation: First, before clamping, the operator can rotate the knob 8 on the outside of the contact plate 4 according to the characteristics of the bulb being clamped (such as material, brittleness, or surface requirements). This, via the one-way engagement mechanism within the rotation limit member 7, drives the connecting shaft 5023 and the connected adjusting plate 5022 to rotate. This operation pre-sets the initial overlap angle between the fixed semi-annular groove 5031 on the piston body 5021 and the movable semi-annular groove 5032 on the adjusting plate 5022, thus determining the initial flow area of ​​the flow port 503 within the damping cylinder 501. The larger the initial area, the higher the preset "softness" of the system, and the smaller the damping; conversely, the higher the "hardness," the greater the damping, and the greater the initial preset force. Not only is the initial contact stage "harder," but the force level corresponding to each subsequent automatic segment will also shift upwards accordingly. This function enables the buffer system to have an adjustable overall stiffness baseline, which is a key preliminary step for achieving wide adaptability to different objects and providing rich clamping force curves.

[0065] After the preset is completed, the drive motor starts, driving the sliders 1032 on both sides and the clamping part 104 to move towards each other through the crank connecting rod 1022 mechanism. The entire clamping process then enters the automatic segmented adjustment stage: In the initial contact section, the contact plate 4 touches the bulb first. At this time, the adjustable piston 502 is located at the front end of the damping cylinder 501, the insert shaft 11 is located at the starting section of the drive groove 9, and the flow port 503 maintains a preset large opening. The system mainly provides gentle resistance generated by the return spring 6 to ensure gentle contact and initial engagement, avoiding impact. As the clamping advances into the stable clamping section, the piston moves inward, the insert shaft 11 slides into the transition section 10 of the drive groove 9 and is forced to drive the adjusting plate 5022 to rotate a certain angle, so that the overlapping area of ​​the movable semi-annular groove 5032 and the fixed semi-annular groove 5031 is reduced, the flow cross section of the flow port 503 shrinks, the damping force increases significantly, the system stiffness increases, and the clamping force increases rapidly to reliably grip the bulb. Finally, at the end of the stroke, in the final locking section, the insert shaft 11 enters the third section of the drive groove 9, and the adjusting disc 5022 is driven to rotate again, causing the opening of the overflow port 503 to drop to the preset minimum value, the damping force reaches its peak, and the buffer system becomes almost rigid, thereby providing the maximum final locking force.

[0066] In summary, this robotic arm, through the organic combination of static initial preset and dynamic automatic stroke adjustment, transforms the uniform rotation of the motor into a clamping force applied to the light bulb in stages. Pre-adjustment lays the foundation for adapting to the hardness of different objects, broadening its application range; the automatic three-stage adjustment ensures that the force adaptively transitions from "gentle" to "stable" to "locking" during a single clamping stroke, protecting the light bulb while ensuring reliable gripping.

[0067] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0068] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the present invention.

Claims

1. An automatic bulb filament holder insertion device, comprising a rotary assembly device (12), characterized in that, It also includes a gripping and unloading robot; the gripping and unloading robot includes a mounting frame and a gripper (1). The clamping hand (1) includes a base (101), two slides (1031), two sliders (1032), two clamping parts (104), a drive assembly (102), and a buffer assembly. The two slides (1031) are symmetrically fixed to the base (101), and the two sliders (1032) are slidably sleeved on one of the slides (1031) and can slide along the clamping direction. The two clamping parts (104) are respectively fixed above one of the sliders (1032) for clamping objects; the driving assembly (102) is used to drive the two sliders (1032) to perform synchronous reciprocating movements towards and away from each other along the clamping direction; The buffer assembly is disposed on each clamping part (104), and includes a damping cylinder (501) fixed to the clamping part (104), an adjustable piston (502) slidably disposed in the damping cylinder (501), a telescopic rod (504) connected to the adjustable piston (502), and a contact plate (4) fixed to the outer end of the telescopic rod (504). The adjustable piston (502) is dynamically sealed to the inner wall of the damping cylinder (501) and is provided with an outlet (503). The effective flow area of ​​the outlet (503) can be changed as the adjustable piston (502) moves in the damping cylinder (501) to adjust the damping force of the buffer assembly.

2. The automatic bulb filament holder insertion device according to claim 1, characterized in that, The drive assembly (102) includes a turntable (1021), a connecting rod (1022), and a slide (1025). The turntable (1021) is rotatably mounted on the base (101) and located between the two sliders (1032). Two connecting rods (1022) are provided and symmetrically distributed on both sides of the turntable (1021). The first end of each connecting rod (1022) is connected to the outer periphery of the turntable (1021) through the drive shaft (1023), and the second end is connected to a slider (1032) through the limiting shaft (1024). The slide groove (1025) is opened on the slide block (1031) and extends along the clamping direction. The bottom end of the limiting shaft (1024) is inserted into the slide groove (1025) and can slide therein.

3. The automatic bulb filament holder insertion device according to claim 2, characterized in that, The adjustable piston (502) includes a piston body (5021) and an adjusting disc (5022), wherein the piston body (5021) is fixedly connected to the telescopic rod (504); The adjusting disc (5022) is rotatably mounted on one end of the piston body (5021) facing the inner cavity of the damping cylinder (501), and is dynamically sealed to the end face of the piston body (5021); The piston body (5021) and the adjusting plate (5022) are respectively provided with corresponding flow ports (503). Rotating the adjusting plate (5022) can change the relative position of the two flow ports (503) to adjust the effective flow area.

4. The automatic bulb filament holder insertion device according to claim 3, characterized in that, The piston body (5021) is provided with a fixed semi-annular groove (5031), and the adjusting plate (5022) is provided with a movable semi-annular groove (5032). When the regulating disc (5022) rotates, the overlapping area of ​​the movable semi-annular groove (5032) and the fixed semi-annular groove (5031) changes, thereby changing the effective flow area of ​​the flow port (503).

5. The automatic bulb filament holder insertion device according to claim 4, characterized in that, The inner wall of the damping cylinder (501) is provided with a drive groove (9), and the outer periphery of the adjusting plate (5022) is fixed with a plug shaft (11), which is inserted into the drive groove (9); The drive groove (9) extends along the axial direction of the damping cylinder (501) and is divided into at least two segments in the axial direction. The at least two segments of the drive groove (9) are in different positions in the circumferential direction and are connected by a transition segment (10) between adjacent segments. When the adjustable piston (502) moves axially within the damping cylinder (501), the insert shaft (11) slides along the drive groove (9) and is driven at the transition section (10) to rotate the adjusting disc (5022).

6. The automatic bulb filament holder insertion device according to claim 5, characterized in that, The drive groove (9) includes a starting section, a middle section and a ending section distributed sequentially along the axial direction; When the insert shaft (11) is located in the starting section, the effective flow area of ​​the flow port (503) is a first preset value; when the insert shaft (11) is located in the middle section, the effective flow area of ​​the flow port (503) is a second preset value that is less than the first preset value. When the insert shaft (11) is located at the end, the effective flow area of ​​the flow port (503) is a third preset value that is less than the second preset value.

7. The automatic bulb filament holder insertion device according to claim 3, characterized in that, It also includes a rotation limiter (7) for adjusting and locking the initial angular position of the adjustment disc (5022) relative to the piston body (5021).

8. The automatic bulb filament holder insertion device according to claim 7, characterized in that, The rotation limiting component (7) includes a connecting shaft (5023), an inner gear plate (703), an outer ring (701), a toothed plate (702), and an adjusting shaft (704). One end of the connecting shaft (5023) is concentrically fixed with the adjusting plate (5022), and the other end passes through the piston body (5021) and the telescopic rod (504) and extends to the outside of the contact plate (4). The internal gear disk (703) is coaxially fixed with the connecting shaft (5023); the outer ring (701) is fixed to the end of the telescopic rod (504); the internal gear disk (703) is rotatably disposed in the outer ring (701); the insert teeth (702) are disposed in the outer ring (701) and form a one-way meshing with the tooth groove on the outer periphery of the internal gear disk (703); The adjusting shaft (704) is connected to the internal gear disk (703), and a knob (8) is provided at its end.

9. The automatic bulb filament holder insertion device according to claim 1, characterized in that, The device also includes a return spring (6), which is sleeved on the outside of the telescopic rod (504) and its two ends abut against the contact plate (4) and the clamping part (104) respectively.

10. The automatic bulb filament holder insertion device according to claim 2, characterized in that, The slider (1032) has two longitudinally arranged through slots (3) along its sliding direction. The lower through slot (3) is sleeved on the outside of the slide block (1031), and the upper through slot (3) is connected to the limiting shaft (1024) of the drive assembly (102).

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