Automatic alignment device for conveying parts of firework type generator

Abstract

The invention discloses an automatic position aligning device for conveying parts of a smoke and fire type generator. The automatic position aligning device comprises a part adjusting mechanism and a part limiting mechanism. The part limiting mechanism comprises a fixing plate and a positioning seat arranged at the right upper end of the fixing plate, a circular limiting groove is formed in the center of the positioning seat, the limiting groove is matched with the generator base, a limiting column is arranged in the center of the limiting groove, and two limiting pins with an included angle of 135 degrees are arranged on the peripheral side of the limiting column; the limiting column and the limiting pin are matched with a center hole and a limiting hole formed in the center of the generator base respectively, a through first mounting hole is formed in the center of the fixing plate, and two second mounting holes are further formed in the fixing plate and are symmetrically arranged relative to the first mounting hole. The technical problems that in the technical field of automatic production of firework type generators, due to the fact that incoming material angles of parts are random, the parts cannot be accurately in butt joint with tool positioning pins, and then a production line is frequently shut down, the assembly efficiency is low, and the assembly quality is unstable are solved.

Description

Technical Field

[0001] This invention relates to the field of pyrotechnic generator production equipment technology, specifically to an automatic alignment device for conveying parts of a pyrotechnic generator. Background Technology

[0002] As a device with special functions, the production and assembly process of a pyrotechnic generator requires extremely high precision for its components, especially the angular position control during transport, which directly affects the smooth progress of subsequent assembly processes. Among the core components of a pyrotechnic generator, the generator base is a key assembly part. This base has two semi-circular holes, the centers of which lie on the same circumference, and the included angle between the two centers is precisely controlled at 135°. During the assembly process, the base needs to be accurately placed into the two limiting pins of the tooling to achieve precise positioning before subsequent assembly operations can proceed.

[0003] However, in current automated production lines for pyrotechnic generators, the angles at which parts arrive are often random and disordered, making it difficult for the semi-circular holes of the base to align naturally with the tooling limit pins. This results in the generator base failing to be installed smoothly in the designated position. This problem not only interrupts the assembly process but also requires manual intervention for adjustment, increasing labor costs and easily leading to assembly errors. Furthermore, misaligned parts cause frequent shutdowns of the automated production line, severely reducing production efficiency. The instability of manual adjustments can even affect the assembly quality of the pyrotechnic generator, thus hindering the large-scale and efficient operation of the entire production line. The existing production model lacks an efficient and precise automatic part alignment device suitable for automated production lines. Summary of the Invention

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and provide an automatic alignment device for conveying parts of a pyrotechnic generator. This device solves the technical problem in the field of automated production technology of pyrotechnic generators where the random angle of incoming parts leads to the inability to accurately align with the tooling positioning pins, resulting in frequent production line shutdowns, low assembly efficiency, and unstable assembly quality.

[0005] To achieve the above-mentioned technical objectives, the present invention provides an automatic alignment device for conveying parts of a pyrotechnic generator, comprising: The system includes a component adjustment mechanism and a component limiting mechanism. The component limiting mechanism includes a fixed plate and a positioning seat located at the top of the fixed plate. A circular limiting groove is formed at the center of the positioning seat. The limiting groove is adapted to the generator base. A limiting post is provided at the center of the limiting groove, and two limiting pins with an included angle of 135° are provided around the periphery of the limiting post. The limiting post and the limiting pins are adapted to the center hole and the limiting hole respectively formed at the center of the generator base. A first through mounting hole is formed at the center of the fixed plate. The fixed plate also has two second mounting holes. The two second mounting holes are symmetrically arranged about the first mounting hole. A first guide rod is provided in the first mounting hole, and an elastic element is sleeved on the first guide rod. The upper end of the elastic element abuts against the lower end face of the positioning seat, and the lower end of the elastic element abuts against the upper end face of the fixed plate.

[0006] Compared with the prior art, the beneficial effects of the present invention include: 1. The automatic alignment device for conveying parts of a pyrotechnic generator provided by this invention adopts a mechanical alignment structure. Compared with the existing manual calibration method, the alignment accuracy is higher, effectively ensuring the accuracy of the angular position of the parts, thereby ensuring the reliability of the assembly quality of the pyrotechnic generator. The device has a compact overall structure, with smooth cooperation among all components. It is simple and reliable, requiring no complex maintenance operations, thus reducing the operating cost and maintenance difficulty of the equipment.

[0007] 2. The automatic alignment device for conveying parts of the pyrotechnic generator provided by this invention achieves automated operation of the alignment process of sensor parts through the coordinated control of position sensing unit and PLC. It completely solves the problem of frequent shutdowns and low production efficiency of automated production lines due to misalignment of parts, reduces manual intervention, improves the operating efficiency of the entire production line, and provides stable equipment support for the large-scale production of pyrotechnic generators. Attached Figure Description

[0008] Figure 1 This is a three-dimensional structural diagram of the automatic alignment device for conveying parts of a fireworks generator provided by the present invention; Figure 2 This is an exploded view of the component limiting mechanism provided by the present invention; Figure 3 This is a three-dimensional structural diagram of the component adjustment mechanism provided by the present invention; Figure 4 This is a three-dimensional structural diagram of the positioning seat and limiting pin provided by the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the generator base provided by the present invention; Figure 6 This is a schematic diagram of the exploded structure of the generator components provided by the present invention.

[0009] The attached icons are numbered as follows: Component adjustment mechanism 1, fixing plate 1-1, first mounting hole 1-11, second mounting hole 1-12, positioning seat 1-2, limiting groove 1-21, limiting post 1-22, limiting pin 1-23, first guide rod 1-3, elastic element 1-4, sliding connector 1-5, second guide rod 1-6, connecting plate 1-7, movable support plate 1-8, fixed support plate 1-9, position sensing unit 1-10, component limiting mechanism 2, rotary drive source 2-1, clamping drive source 2-2, gripper 2-3, fixing seat 2-4, generator components 3, generator base 3-1, generator housing 3-2, center hole 3-11, limiting hole 3-12. Detailed Implementation

[0010] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0011] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0012] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0013] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 This embodiment provides an automatic alignment device for conveying parts of a pyrotechnic generator, including a parts adjustment mechanism 1 and a parts limiting mechanism 2.

[0014] Furthermore, the component limiting mechanism 1 includes a fixing plate 1-1 and a positioning seat 1-2 disposed at the upper end of the fixing plate 1-1. The positioning seat 1-2 is circular in shape.

[0015] Furthermore, a circular limiting groove 1-21 is provided at the center of the positioning seat 1-2. The limiting groove 1-21 is adapted to the generator base 3-1 and is used to limit the positioning seat 1-2.

[0016] Furthermore, a limiting post 1-22 is provided at the center of the limiting groove 1-21, and two limiting pins 1-23 with an included angle of 135° are provided on the periphery of the limiting post 1-22. The limiting post 1-22 and the limiting pins 1-23 are respectively adapted to the central hole 3-11 and the limiting hole 3-12 opened in the center of the generator base 3-1, so as to limit the generator base 3-1.

[0017] Furthermore, the fixing plate 1-1 has a through first mounting hole 1-11 at its center, and the fixing plate also has two second mounting holes 1-12.

[0018] Furthermore, the two second mounting holes 1-12 are symmetrically arranged about the first mounting hole 1-11. A first guide rod 1-3 is provided in the first mounting hole 1-11. An elastic element 1-4 is sleeved on the first guide rod 1-3. The upper end of the elastic element 1-4 abuts against the lower end face of the positioning seat 1-2, and the lower end of the elastic element 1-4 abuts against the upper end face of the fixing plate 1-1.

[0019] Furthermore, preferably, the elastic elements 1-4 are selected as conventional metal helical springs, which have the advantages of wear resistance, fatigue resistance, and suitability for long-term operation of the production line, while also being inexpensive.

[0020] Furthermore, a sliding connector 1-5 is provided in the second mounting hole 1-12, and a second guide rod 1-6 is slidably connected to the sliding connector 1-5. The upper end of the second guide rod 1-6 is fixedly connected to the bottom end face of the positioning seat 1-2, and the lower ends of the two second guide rods 1-6 are fixedly connected by a connecting plate 1-7.

[0021] Furthermore, preferably, the sliding connectors 1-5 are selected as linear bearings.

[0022] Furthermore, a movable support plate 1-8 is fixedly connected to one side of the fixed plate 1-1, and a fixed support plate 1-9 is detachably fixedly connected to the lower end of the movable support plate 1-8. A position sensing unit 1-10 is provided on the movable support plate 1-8 in the area opposite to the connecting plate 1-7. The fixed support plate 1-9 has two bolt holes, and the movable support plate 1-8 has a through groove corresponding to the bolt holes. The relative height of the movable support plate 1-8 and the fixed support plate 1-9 can be adjusted by the relative position of the bolt holes and the through groove.

[0023] Furthermore, when it is necessary to adjust the height between the movable support plate 1-8 and the fixed support plate 1-9, loosen the bolts between the through groove and the bolt holes, adjust the height of the movable support plate 1-8, and tighten the bolts between the through groove and the bolt holes again to fix the movable support plate 1-8 and the fixed support plate 1-9 together.

[0024] Furthermore, the component adjustment mechanism 2 includes a rotation drive source 2-1, a clamping drive source 2-2, and a gripper 2-3.

[0025] Furthermore, preferably, the rotary drive source 2-1 is a rotary electric cylinder, and the clamping drive source 2-2 is a clamping pneumatic cylinder, both powered by high-pressure gas. The specific reasons for choosing a rotary electric cylinder are as follows: 1. The included angle between the two limiting holes 3-12 of the generator base 3-1 is 135°, and they must be precisely aligned with the limiting pins 1-23 (the deviation must be controlled within ±0.5° to avoid jamming between the holes and the pins). The angle control accuracy of the rotary electric cylinder can reach ±0.01°-±0.1°, which is much higher than that of pneumatic rotary actuators (usually ±1°-±2°). This ensures that when the generator base 3-1 is rotated under PLC control, the "hole-pin alignment" position is accurately found. The design logic of "mechanical alignment + electric control assistance" of the device is completely consistent. 2. Although the generator base 3-1 is a small component, it must maintain stability in the clamping state during rotation (to avoid tilting of the base due to torque fluctuations, which would affect the hole alignment). The rotary electric cylinder has a constant output torque and no torque pulsation at low speeds, smoothly driving the clamping drive source 2-2 and the gripper 2-3 to rotate. This avoids positional shifts in the generator base 3-1 due to sudden torque fluctuations, ensuring the continuity of the "rotation-alignment" process. The alignment process of this device relies on a closed-loop control: "connecting plate 1-7 triggers the position sensing unit 1-10 → PLC commands the rotary drive source 2-1 to start → alignment completes and then stops." The rotary drive source 2-1 supports "adjustable start / stop response speed," allowing for rapid response to PLC rotation commands and immediate shutdown when the position sensing unit 1-10 detects "hole-pin alignment," preventing over-rotation of the generator base 3-1 due to inertia. Furthermore, its rotation speed can be flexibly set according to the production line cycle time, ensuring the alignment process does not slow down the overall production line efficiency.

[0026] Furthermore, the specific reasons for choosing a clamping cylinder are as follows: 1. The generator base 3-1 is mostly made of aluminum alloy or engineering plastic, which is easily scratched and has a relatively thin structure. Excessive clamping can easily lead to deformation. The clamping force of the clamping cylinder can be adjusted by a pressure regulating valve. The force can be set to "just firmly clamp" according to the material and weight of the generator base 3-1. This avoids the generator base 3-1 from falling off during rotation or downward movement due to excessive clamping, and also prevents the generator base 3-1 from deforming or being damaged due to excessive clamping, thus ensuring the dimensional accuracy of the generator component 3 in subsequent assembly. 2. In the automated production line, the generator component 3 needs to be quickly transferred from the upstream conveying station to the alignment station, and then quickly conveyed to the next process after alignment. The pneumatic gripper has a fast opening and closing response speed and can quickly complete the "clamping-aligning-releasing" action cycle. It matches the angle adjustment rhythm of the rotary electric cylinder to ensure that the processing efficiency of a single device can keep up with the production line pace and avoid becoming a bottleneck in the production line.

[0027] Furthermore, a fixing seat 2-4 is fixedly connected to the fixed end of the rotary drive source 2-1 for fixing the rotary drive source 2-1 to other devices or production lines. The output end of the rotary drive source 2-1 is fixedly connected to the fixed end of the clamping drive source 2-2, and two grippers 2-3 are fixedly connected to the output end of the clamping drive source 2-2.

[0028] Furthermore, the gripping surface curvature of the gripper 2-3 is adapted to the outer wall surface of the generator base 3-1, thereby enabling the gripping of the generator base 3-1.

[0029] Furthermore, the generator component 3 includes the generator base 3-1 and the generator housing 3-2, with the generator housing 3-2 fixedly connected to the generator base 3-1.

[0030] Specifically, after the generator component 3 is clamped by the gripper 2-3, it is pressed onto the positioning seat 1-2. Due to the random angle at which the generator component 3 arrives, the limiting hole 3-12 of the generator base 3-1 is misaligned with the limiting pin 1-23, causing the generator base 3-1 to press against the limiting pin 1-23. As the generator base 3-1 moves downward, the positioning seat 1-2, which is fixed to the limiting pin 1-23, moves downward synchronously, and the connecting plate 1-7, located below the fixing plate 1-1, also moves downward. The downward movement of the connecting plate 1-7 triggers the position sensing unit 1-10. When the connecting plate approaches the position sensing unit 1-10, it feeds back a misalignment signal to the PLC, which then sends a signal to the rotary drive source 2-1 to control it to start rotating.

[0031] Furthermore, the rotary drive source 2-1 drives the clamping drive source 2-2 and the gripper 2-3, as well as the generator component 3 held by the gripper 2-3, to rotate together until the limiting hole 3-12 of the generator base 3-1 is completely aligned with the limiting pin 1-23. At this time, the positioning seat 1-2 rebounds under the rebound force of the elastic element 1-4, and the limiting pin 1-23 is precisely inserted into the limiting hole 3-12 of the generator base 3-1. The connecting plate 1-7 rebounds together with the positioning seat 1-2. After the position sensing unit 1-10 senses the alignment, it outputs a signal to the PLC. The PLC controls the rotary drive source 2-1 to stop rotating, and the generator component 3 is conveyed to the next process in this aligned state.

[0032] In this embodiment, the PLC control is existing technology and will not be described in detail in this specification.

[0033] Working Principle: The automatic alignment device for conveying parts of a pyrotechnic generator provided by this invention includes a part adjustment mechanism 1 and a part limiting mechanism 2. The part limiting mechanism 1 includes a fixed plate 1-1 and a positioning seat 1-2 disposed on the upper end of the fixed plate 1-1. The positioning seat 1-2 is circular in shape. A circular limiting groove 1-21 is formed in the center of the positioning seat 1-2, which is adapted to the generator base 3-1 and is used to limit the positioning seat 1-2. A limiting post 1-22 is provided in the center of the limiting groove 1-21, and two limiting pins 1-23 with an included angle of 135° are provided on the periphery of the limiting post 1-22. The limiting post 1-22 and the limiting pins 1-23 are adapted to the central hole 3-11 and the limiting hole 3-12 formed in the center of the generator base 3-1, respectively.

[0034] Specifically, after the generator component 3 is clamped by the gripper 2-3, it is pressed onto the positioning seat 1-2. Due to the random angle at which the generator component 3 arrives, the limiting hole 3-12 of the generator base 3-1 is misaligned with the limiting pin 1-23, causing the generator base 3-1 to press against the limiting pin 1-23. As the generator base 3-1 moves downward, the positioning seat 1-2, which is fixed to the limiting pin 1-23, moves downward synchronously, and the connecting plate 1-7, located below the fixing plate 1-1, also moves downward. The downward movement of the connecting plate 1-7 triggers the position sensing unit 1-10. When the connecting plate approaches the position sensing unit 1-10, it feeds back a misalignment signal to the PLC, which then sends a signal to the rotary drive source 2-1 to control it to start rotating.

[0035] Furthermore, the rotary drive source 2-1 drives the clamping drive source 2-2 and the gripper 2-3, as well as the generator component 3 held by the gripper 2-3, to rotate together until the limiting hole 3-12 of the generator base 3-1 is completely aligned with the limiting pin 1-23. At this time, the positioning seat 1-2 rebounds under the rebound force of the elastic element 1-4, and the limiting pin 1-23 is precisely inserted into the limiting hole 3-12 of the generator base 3-1. The connecting plate 1-7 rebounds together with the positioning seat 1-2. After the position sensing unit 1-10 senses the alignment, it outputs a signal to the PLC. The PLC controls the rotary drive source 2-1 to stop rotating, and the generator component 3 is conveyed to the next process in this aligned state.

[0036] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An automatic alignment device for conveying parts in a pyrotechnic generator, characterized in that, include: The system includes a component adjustment mechanism and a component limiting mechanism. The component limiting mechanism includes a fixed plate and a positioning seat located at the top of the fixed plate. A circular limiting groove is formed at the center of the positioning seat. The limiting groove is adapted to the generator base. A limiting post is provided at the center of the limiting groove, and two limiting pins with an included angle of 135° are provided around the periphery of the limiting post. The limiting post and the limiting pins are adapted to the center hole and the limiting hole respectively formed at the center of the generator base. A first through mounting hole is formed at the center of the fixed plate. The fixed plate also has two second mounting holes. The two second mounting holes are symmetrically arranged about the first mounting hole. A first guide rod is provided in the first mounting hole, and an elastic element is sleeved on the first guide rod. The upper end of the elastic element abuts against the lower end face of the positioning seat, and the lower end of the elastic element abuts against the upper end face of the fixed plate.

2. The automatic alignment device for conveying parts of a pyrotechnic generator according to claim 1, characterized in that, A sliding connector is provided in the second mounting hole; the sliding connector is slidably connected to a second guide rod, the upper end of the second guide rod is fixedly connected to the bottom end face of the positioning seat, and the lower ends of the two guide rods are fixedly connected by a connecting plate.

3. The automatic alignment device for conveying parts of a pyrotechnic generator according to claim 2, characterized in that, A movable support plate is fixedly connected to one side of the fixed plate; a fixed support plate is detachably fixedly connected to the lower end of the movable support plate; a position sensing unit is provided on the movable support plate in the area opposite to the connecting plate; the fixed support plate has two bolt holes; the movable support plate has through slots corresponding to the bolt holes; the relative height of the movable support plate and the fixed support plate can be adjusted by the relative position of the bolt holes and the through slots.

4. The automatic alignment device for conveying parts of a pyrotechnic generator according to claim 3, characterized in that, The component adjustment mechanism includes a rotary drive source, a clamping drive source, and grippers; a fixed base is fixedly connected to the fixed end of the rotary drive source; the output end of the rotary drive source is fixedly connected to the fixed end of the clamping drive source; and two grippers are fixedly connected to the output end of the clamping drive source.

5. The automatic alignment device for conveying parts of a pyrotechnic generator according to claim 4, characterized in that, The gripping surface curvature of the gripper is adapted to the outer wall surface of the generator base, thereby enabling the gripping of the generator base.

6. The automatic alignment device for conveying parts of a pyrotechnic generator according to claim 5, characterized in that, The generator components include the generator base and the generator housing; the generator housing is fixedly connected to the generator base.

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