Wiring terminal production laser cutting device and process thereof

Abstract

The invention discloses a wiring terminal production laser cutting device and process, and relates to the field of laser cutting devices.The wiring terminal production laser cutting device comprises a machine body, bases are symmetrically installed at the top of the machine body, and the tops of the bases are connected with a positioning plate through air cylinders; a dust collection wave tube is rotationally arranged at the top of the positioning plate, a swing range adjusting assembly for the dust collection wave tube is arranged in the positioning plate, the two sides of the dust collection wave tube are connected with the inner side faces of the long ends of side plates, and the side plates and the dust collection wave tube form a fan-shaped dust collection structure; a base plate is arranged on the outer end face of the positioning plate, a clamping spring is arranged between the outer end face of the positioning plate and the base plate, and a pre-tightening force adjusting assembly of the clamping spring is arranged in the positioning plate. According to the laser cutting device and process for wiring terminal production, through linkage operation of clamping positioning, synchronous dust collection range adjustment, reciprocating swing dust collection and pre-tightening force adjustment, wiring terminal clamping, cutting dust efficient cleaning and clamping force self-adaption are achieved, and the laser cutting quality is improved.

Description

Technical Field

[0001] This invention relates to the field of laser cutting equipment technology, specifically to a laser cutting device and process for manufacturing terminal blocks. Background Technology

[0002] Terminal blocks, as core components of electrical connection systems, are widely used in industrial control, automotive electronics, new energy equipment, and home appliance manufacturing. They are typically made of metals such as copper, aluminum, and brass, and their structure usually includes key components such as leads, wiring holes, and mounting lugs. The dimensional accuracy of these components (e.g., lead length tolerance ±0.05mm, hole diameter tolerance ±0.03mm), cut smoothness, and surface quality directly determine the stability, conductivity, and lifespan of the electrical connection. Laser cutting technology, with its advantages of high cutting speed, narrow kerf, high processing precision, and no mechanical stress, has gradually replaced traditional punching and abrasive wheel cutting processes, becoming the core processing method for mass production of terminal blocks. However, laser cutting generates a large amount of metal dust and fine waste debris. Existing cutting tables are mostly solid flat plates or simple grid structures, making it easy for dust and debris to accumulate on the cutting station surface. This accumulated waste comes into contact with the terminal surface, causing uneven heating during cutting and scratching the terminal surface plating, affecting the product's appearance and conductivity.

[0003] To address the aforementioned deficiencies, the existing technology (Chinese Patent No. CN105562945B, published on March 9, 2018) provides a laser cutting device for a light guide plate. The device places the light guide plate to be processed on a vacuum adsorption plate and positions it directly below the horizontal plate of a support frame. Then, a lifting cylinder is activated, and its piston rod drives the vacuum adsorption plate and the light guide plate through the through-hole of the worktable and upwards until the light guide plate is directly below the cutting mechanism. Depending on the size of the light guide plate to be cut, the laser cutter can be adjusted to slide on the corresponding linear slide rail. During the cutting of the light guide plate, the dust collection hood of the dust collection mechanism covers the outside of the linear slide rail, with the lower end of the hood tightly pressed against the upper surface of the light guide plate. The debris and dust generated by the laser cutter during the cutting process are blocked by the dust collection hood to prevent them from spreading to the external environment. Simultaneously, a fan is activated, and the dust collection pipe sucks the debris and dust out of the dust collection hood. The prior art (Chinese patent announcement number CN218695111U, announcement date 2023-03-24) describes a precision laser cutting device for sheet metal parts. Through a drive component, a dust collection component is used in conjunction, enabling precise dust collection during sheet metal part processing. In use, the motor and micro air pump are turned on, causing the final gear to drive the threaded rod to rotate, which in turn moves the slider and the laser cutter. Simultaneously, due to the presence of the connecting frame, the flexible hose fixed to the input end of the micro air pump also moves along with the displacement, thus achieving dust collection during sheet metal part processing. This solves the problem that existing devices cannot collect the cutting debris, resulting in significant time wasted on subsequent cleaning, and the debris affecting the working environment of the workers.

[0004] The above solution involves positioning the workpiece before laser cutting and using a dust collection component to absorb dust during the cutting process. However, the dust collection range is fixed and the operation is limited. When processing small terminals, the dust collection force is dispersed, resulting in dust residue. When processing large terminals, insufficient coverage leads to waste accumulation, affecting cutting quality and equipment lifespan. This makes it difficult to adapt the dust collection range to the size of the workpiece. In addition, the positioning part requires manual adjustment, using fixed pressure clamps or manual adjustment bolts. Thin terminals are easily damaged, and thick terminals are easily loosened, resulting in low dimensional accuracy and product qualification rate. Summary of the Invention

[0005] The purpose of this invention is to provide a laser cutting device and process for manufacturing terminal blocks, in order to solve the problems mentioned in the background art. In the process of using existing laser cutting devices for manufacturing terminal blocks, the workpiece to be processed is positioned and then laser-cut. A dust collection component is set up to absorb the dust during the cutting process. However, during operation, the dust collection range is fixed and the movement state is monotonous. When processing small terminals, the dust collection force is dispersed, resulting in dust residue. When processing large terminals, insufficient coverage leads to waste accumulation, affecting the cutting quality and equipment life. Therefore, it is not convenient to adapt the dust collection range according to the size of the workpiece being processed. At the same time, the positioning part needs to be manually adjusted and positioned, using fixed pressure clamps or manual adjustment bolts. Thin terminals are easily damaged, and thick terminals are easily loosened, resulting in low dimensional accuracy and product qualification rate.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a laser cutting device for producing terminal blocks, comprising a machine body, a multi-axis laser cutting arm mounted on the side wall of the machine body, a base symmetrically mounted on the top of the machine body, and a positioning plate for clamping terminal blocks connected to the top of the base via a cylinder; The top of the positioning plate is rotatably equipped with a dust-suction wave tube, and the inside of the positioning plate is equipped with an adjustment component for the swing range of the dust-suction wave tube. The two sides of the dust-suction wave tube are connected to the inner side of the long end of the side plate which is scissor-shaped and rotatably connected, and the side plate and the dust-suction wave tube form a fan-shaped dust-suction structure. A pad is provided on the outer end face of the positioning plate, and the pad is in contact with the wiring terminal. A clamping spring is provided between the outer end face of the positioning plate and the pad. A preload adjustment component for the clamping spring is provided inside the positioning plate.

[0007] Furthermore, the swing range adjustment assembly includes a sleeve fixed to the inner wall of the transverse groove, the transverse groove being symmetrically opened on the side of the positioning plate, a piston rod being slidably connected in the sleeve, the sleeve being connected to the inner wall of the adjustment sleeve through a connecting pipe, the adjustment sleeve being disposed between the opposite faces of the short ends of the side plate, and sliding rods being slidably connected through and sealed on both sides of the adjustment sleeve, the outer side of the sliding rods being fixedly connected to the opposite face of the short ends of the side plate.

[0008] Furthermore, a fixing plate is symmetrically installed on the base, a connecting rod is hinged to the fixing plate, a slider is hinged to the end of the connecting rod, the slider is slidably connected in the transverse groove, the slider is fixedly connected to the end of the piston rod, and the piston rod forms a telescopic sliding structure with the sleeve through the connecting rod.

[0009] Furthermore, both the adjusting sleeve and the sliding rod are designed with an arc shape, and the side plate drives the suction wave tube through the adjusting sleeve and the sliding rod to form a suction range adjustment structure.

[0010] Furthermore, the suction wave tube has symmetrically fixed ribs at both ends. The ribs are slidably connected to the inner wall of the side plate via a return spring. The ribs on both sides are divided into upper and lower parts. The upper and lower parts of each single-sided rib are fixedly connected to the inner wall of the opposite side plate via a first pull rope. The suction wave tube forms a suction maintaining structure through the ribs, return spring, and first pull rope. The suction wave tube is connected to the vacuuming equipment in the machine body via a tube.

[0011] Furthermore, a motor is installed inside the positioning plate, and a half gear is connected to the output end of the motor. A full gear is meshed with the outer side of the half gear. Both the half gear and the full gear are rotatably connected to the inner middle of the positioning plate. The mounting shaft of the full gear extends through to the top of the positioning plate, and a first torsion spring is connected between the mounting shaft of the full gear and the inside of the positioning plate. The mounting shaft of the full gear is fixed to the bottom of the rotating shaft of the side plate. The suction tube forms a reciprocating oscillating structure through the half gear, the full gear, and the first torsion spring.

[0012] Furthermore, a piezoelectric element is embedded in the outer surface of the pad, and the electricity generated by the piezoelectric element is stored in a battery. The battery is installed inside the positioning plate. The battery powers the motor. After the positioning plate clamps the wiring terminals, the suction tube begins to move and suck up dust.

[0013] Furthermore, the preload adjustment assembly includes a telescopic rod symmetrically rotatably connected to the top of the base. The internal sliding cavity of the telescopic rod is configured as a rectangular structure. The inner rod of the telescopic rod is rectangular, and the outer end of the inner rod is fitted and connected to the axis of the threaded rod. The threaded rod is symmetrically rotatably connected to the inside of the positioning plate. A pressure plate is threadedly connected to the outer side of the threaded rod, and the outer end of the pressure plate abuts against the clamping spring.

[0014] Furthermore, the outer side of the clamping spring abuts against the pad, the inner surface of the outer end face of the positioning plate has a reserved sliding space for the pressure plate, the pressure plate is configured as a comb-shaped structure when viewed from above, and the clamping spring forms a preload adjustment structure through the threaded rod and the pressure plate.

[0015] Furthermore, the outer cylinder end of the telescopic rod is connected to the rotating rod via a bevel gear connector. The rotating rod is rotatably connected to the side of the fixed plate. A second torsion spring is provided at the rotation point of the rotating rod and the fixed plate. A second pull rope is wound around the middle of the rotating rod, and the end of the second pull rope is fixedly connected to the back of the positioning plate.

[0016] A laser cutting process for manufacturing terminal blocks includes the following steps: 1. According to the specifications of the terminal block to be processed, adjust the moving distance of the positioning plates on both sides by the cylinder until the positioning plates clamp the terminal block, start the dust collection device inside the machine body and connect the dust collection wave tube, and align the multi-axis laser cutting arm with the focal position of the laser cutting head to perform laser cutting. 2. During the movement and clamping of the positioning plate, the suction tube adaptively adjusts the opening range and size through the swing range adjustment component, expanding the arc while shortening the opening height to maintain suction power. 3. After the positioning plate and the wiring terminal are pressed together, the electric power generated by the piezoelectric effect is increased to drive the motor to work. The suction tube oscillates back and forth through the half gear, the full gear and the first torsion spring to improve the suction effect. IV. During the movement and clamping of the positioning plate, the preload adjustment component synchronously adjusts the preload of the clamping spring, so that the contact pressure between the positioning plate and the terminal block can be adaptive, maintaining stability for large sizes and avoiding damage to small sizes, thereby improving processing quality.

[0017] Compared with the prior art, the beneficial effects of the present invention are: The laser cutting device and process for manufacturing terminal blocks utilize a linkage operation of clamping and positioning, synchronous dust suction range adjustment, reciprocating oscillating dust suction, and pre-tightening force adjustment to achieve efficient cleaning of cutting dust during terminal block clamping and cutting, as well as adaptive clamping force, thereby improving the quality of laser cutting.

[0018] Furthermore, relying on the linkage structure of the rotating rod, telescopic rod, and threaded rod, the comb-shaped pressure plate can automatically adjust the preload of the clamping spring as the positioning plate moves. When clamping large / thick terminals, the pressure plate squeezes the spring to increase the compression amount, and the preload is increased to a suitable and stable value to avoid loosening during cutting. When clamping small / thin terminals, the pressure plate moves back to reduce the spring compression amount, and the preload becomes less flexible. Combined with the buffer design of the pad, it prevents the terminal from being crushed and deformed. At the same time, the piezoelectric pad embedded in the pad can provide real-time feedback on the contact status, further improving the positioning accuracy.

[0019] Furthermore, when the positioning plate moves, the connecting rod drives the slider to push the piston rod, and the sleeve pressure drives the adjusting sleeve and the arc-shaped sliding rod to control the opening and closing angle of the scissor-shaped side plate: when the terminal size is large, the side plate opens, and the fan-shaped dust suction range formed by the dust suction wave tube expands simultaneously; when the terminal size is small, the side plate closes, and the dust suction range is focused. Combined with the suction maintenance structure of the rib and the return spring, it not only avoids dust leakage when cutting large-sized terminals, but also prevents the suction force from being dispersed when cutting small-sized terminals, thus reducing the dust residue rate.

[0020] Furthermore, the piezoelectric sheet inside the pad can convert the pressure when the terminal is clamped into electrical energy, which is stored in the battery and supplied to the motor to drive the oscillating dust collection structure. With the help of the battery-powered motor, the half gear and the full gear periodically mesh and disengage. Combined with the reset action of the first torsion spring, the dust collection tube is driven to form a reciprocating oscillating trajectory. Compared with the fixed dust collection method, this structure can fully cover the entire working surface of laser cutting, improve the metal dust adsorption rate, not only reduce the interference of dust on the cutting head precision, but also reduce the impact of dust diffusion on the operating environment and personnel health. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall front view of the present invention; Figure 2 This is a top view of the overall distribution of the base, cylinder, positioning plate, and suction wave tube of the present invention. Figure 3 This is a top view of the positioning plate structure of the present invention; Figure 4 This is a schematic diagram of the distribution structure of the connecting rod and positioning plate of the present invention; Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A in the middle; Figure 6 This is a top-section schematic diagram of the positioning plate structure of the present invention; Figure 7 For the present invention Figure 6 Enlarged structural diagram at point B; Figure 8 This is a schematic cross-sectional view of the inner middle part of the positioning plate of the present invention; Figure 9For the present invention Figure 8 Enlarged structural diagram at point C; Figure 10 This is a schematic diagram of the swing range adjustment component of the present invention; Figure 11 This is a schematic diagram of the overall structure of the dust-collecting wave tube and side plate of the present invention; Figure 12 This is a schematic diagram of the exploded structure of the dust-collecting wave tube and side plate of the present invention; Figure 13 This is a schematic diagram showing the separation state of the connection between the rib, the reset spring, and the side plate of the present invention; Figure 14 This is a schematic diagram of the preload adjustment component of the present invention; Figure 15 This is a cross-sectional view of the telescopic rod, threaded rod, and pressure plate of the present invention.

[0022] In the diagram: 1. Machine body; 2. Laser cutting arm; 3. Base; 4. Cylinder; 5. Positioning plate; 6. Suction tube; 7. Fixing plate; 8. Connecting rod; 9. Slider; 10. Horizontal groove; 11. Sleeve; 12. Piston rod; 13. Side plate; 14. Adjusting sleeve; 15. Slide rod; 16. Rib; 17. Return spring; 18. First pull rope; 19. Clamping spring; 20. Pad; 21. Piezoelectric sheet; 22. Battery; 23. Motor; 24. Half gear; 25. Full gear; 26. First torsion spring; 27. Rotating rod; 28. Second pull rope; 29. ​​Second torsion spring; 30. Telescopic rod; 31. Threaded rod; 32. Pressure plate. Detailed Implementation

[0023] 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. Example 1:

[0024] Please see Figure 1 - Figure 7 and Figure 14 - Figure 15The present invention provides the following technical solution: a laser cutting device for producing terminal blocks, comprising a body 1, a multi-axis laser cutting arm 2 mounted on the side wall of the body 1, a base 3 symmetrically mounted on the top of the body 1, a positioning plate 5 for clamping terminal blocks connected to the top of the base 3 via a cylinder 4, a dust suction tube 6 rotatably mounted on the top of the positioning plate 5, an adjustment component for the swing range of the dust suction tube 6 being provided inside the positioning plate 5, and the dust suction tube 6 being connected to the inner side of the long end of a scissor-shaped rotating side plate 13 on both sides, and the side plate 13 and the dust suction tube 6 forming a fan-shaped dust suction structure, a pad 20 being provided on the outer end face of the positioning plate 5, and the pad 20 contacting the terminal block, a clamping spring 19 being provided between the outer end face of the positioning plate 5 and the pad 20, and a preload adjustment component for the clamping spring 19 being provided inside the positioning plate 5. The core effect achieved by the above solution is as follows: the displacement of the positioning plate 5 serves as the core trigger signal, which synchronously links the two core modules of pre-tightening force adjustment and dust collection range adaptation. At the same time, the piezoelectric energy recovery enables the self-powered swing suction, ultimately forming a fully automated closed loop of "clamping and positioning → dust cleaning → reset and standby". Through the linkage of the rotating rod 27, the threaded rod 31 and the clamping spring 19, the pre-tightening force is dynamically matched with the terminal specifications, which also solves the pain point of "large terminals being missed and small terminals having dispersed suction" in the fixed suction method. Relying on the opening and closing adjustment of the side plate 13 and the reciprocating swing of the suction wave tube 6, the dust in the cutting area is adsorbed without dead angles, which not only protects the precision and stability of the laser cutting head, but also improves the health and safety of the working environment. With the energy recovery of the piezoelectric sheet 21, energy consumption can also be reduced.

[0025] refer to Figure 3 - Figure 13As shown, specifically, the swing range adjustment assembly includes a sleeve 11 fixed to the inner wall of the transverse groove 10. The transverse groove 10 is symmetrically opened on the side of the positioning plate 5. A piston rod 12 is slidably connected in the sleeve 11. The sleeve 11 is connected to the inner wall of the adjusting sleeve 14 through a connecting pipe. The adjusting sleeve 14 is set between the opposite faces of the short ends of the side plate 13. Sliding rods 15 are slidably connected through both sides of the adjusting sleeve 14. The outer side of the sliding rods 15 is fixedly connected to the opposite face of the short ends of the side plate 13. A fixing plate 7 is symmetrically installed on the base 3. A connecting rod 8 is hinged to the fixing plate 7. A slider 9 is hinged to the end of the connecting rod 8. The slider 9 is slidably connected in the transverse groove 10. The slider 9 is fixedly connected to the end of the piston rod 12. The piston rod 12 is connected through... The connecting rod 8 and the sleeve 11 form a telescopic sliding structure. The adjusting sleeve 14 and the sliding rod 15 are both set as arc-shaped structures. The side plate 13 drives the suction wave tube 6 through the adjusting sleeve 14 and the sliding rod 15 to form a suction range adjustment structure. Four ribs 16 are symmetrically fixed at both ends of the suction wave tube 6. The ribs 16 are slidably connected to the inner wall of the side of the side plate 13 through the return spring 17. The two sides of the ribs 16 are divided into upper and lower parts. The upper and lower parts of each single side rib 16 are fixedly connected to the inner wall of the opposite side plate 13 through the first pull rope 18. The suction wave tube 6 forms a suction maintaining structure through the ribs 16, the return spring 17 and the first pull rope 18. The suction wave tube 6 is connected to the suction equipment in the body 1 through the tube.

[0026] refer to Figure 3 - Figure 13 As shown, the adaptive adjustment of the suction range during use is as follows: During the movement of the positioning plate 5, the connecting rod 8 drives the slider 9 to slide along the transverse groove 10. The slider 9 pushes the piston rod 12 to slide inside the sleeve 11. The sleeve 11 is connected to the adjusting sleeve 14 through the connecting pipe. Liquid flows between the sleeve 11 and the adjusting sleeve 14, driving the arc-shaped sliding rod 15 to slide inward along the adjusting sleeve 14, thereby driving the scissor-shaped side plate 13 to rotate. When the terminal size is small, the side plate 13 retracts, and the suction range is focused. When the side plate 13 retracts, it affects the first pull... When the tension of the rope 18 decreases, the return spring 17 in the stretched state will drive the two sides of the suction wave tube 6 to expand in height through the rib 16, so as to concentrate the dust collection in a small area. Conversely, when the terminal size is large, the opening angle of the side plate 13 increases, and the fan-shaped dust collection range formed by the suction wave tube 6 expands simultaneously, and the opening height is shortened, forming a large fan-shaped flat opening. The suction is maintained by the cooperation of the rib 16, the return spring 17 and the first pull rope 18, so as to ensure that the dust collection force is concentrated when cutting terminals of different sizes, and avoid the problem of dust residue or insufficient coverage. Example 2:

[0027] Based on Example 1, a reciprocating oscillating enhanced dust collection method is also disclosed; please refer to [reference needed]. Figure 8 - Figure 12As shown, its specific structure is as follows: A motor 23 is installed inside the positioning plate 5. The output end of the motor 23 is connected to a half gear 24. A full gear 25 is meshed with the outer side of the half gear 24. Both the half gear 24 and the full gear 25 are rotatably connected to the middle of the inner side of the positioning plate 5. The mounting shaft of the full gear 25 extends through to the top of the positioning plate 5. A first torsion spring 26 is connected between the mounting shaft of the full gear 25 and the inside of the positioning plate 5. The mounting shaft of the full gear 25 is fixed to the bottom of the rotating shaft of the side plate 13. The suction wave tube 6 forms a reciprocating swing structure through the half gear 24, the full gear 25 and the first torsion spring 26. A piezoelectric sheet 21 is embedded in the outer surface of the pad 20. The electricity generated by the piezoelectric sheet 21 is stored in the battery 22. The battery 22 is installed inside the positioning plate 5. The battery 22 supplies power to the motor 23. After the positioning plate 5 clamps the terminal, the suction wave tube 6 begins to move and suction.

[0028] refer to Figure 8 - Figure 12 As shown, during use, when the pad 20 is fully attached to the terminal, it will exert a squeezing force on the piezoelectric sheet 21. The electrical charge generated by the piezoelectric sheet 21 under pressure is stored in the battery 22. The battery 22 is directly connected to the motor 23 through the circuit, driving the motor 23 to start. The motor 23 then drives the half gear 24 to rotate. When the half gear 24 meshes with the full gear 25, it drives the full gear 25 to rotate. The first torsion spring 26 stores power, and the mounting shaft of the full gear 25 drives the side plate 13 and the suction wave tube 6 to swing synchronously. When the half gear 24 disengages from the full gear 25, the first torsion spring 26 resets and drives the full gear 25 to rotate in the opposite direction. The suction wave tube 6 returns to its initial position, forming a reciprocating swing trajectory. The suction wave tube 6 is connected to the vacuuming equipment inside the machine body 1 through the tube. During the swing, it fully covers the cutting area and efficiently adsorbs metal dust and debris. Example 3:

[0029] Based on Embodiment 2, an adaptive preload clamping and positioning mechanism is also disclosed. Please refer to [link / reference]. Figure 3 , Figure 6 - Figure 8 and Figure 14 - Figure 15As shown, its specific structure is as follows: The preload adjustment assembly includes a telescopic rod 30 symmetrically rotatably connected to the top of the base 3. The internal sliding cavity of the telescopic rod 30 is set as a rectangular structure. The inner rod of the telescopic rod 30 is a rectangular structure, and the outer end of the inner rod is fitted and connected to the axis of the threaded rod 31. The threaded rod 31 is symmetrically rotatably connected to the inside of the positioning plate 5. A pressure plate 32 is threadedly connected to the outer side of the threaded rod 31. The outer end of the pressure plate 32 abuts against the clamping spring 19. The outer side of the clamping spring 19 abuts against the pad 20. The inner surface of the outer end face of the plate 5 has a reserved sliding space for the pressure plate 32. The pressure plate 32 is designed as a comb-shaped structure when viewed from above. The clamping spring 19 forms a pre-tightening force adjustment structure through the threaded rod 31 and the pressure plate 32. The outer end of the telescopic rod 30 is connected to the rotating rod 27 through a bevel tooth connector. The rotating rod 27 is rotatably connected to the side of the fixed plate 7. A second torsion spring 29 is provided at the rotation point of the rotating rod 27 and the fixed plate 7. A second pull rope 28 is wound around the middle of the rotating rod 27. The end of the second pull rope 28 is fixedly connected to the back of the positioning plate 5.

[0030] refer to Figure 3 , Figure 6 - Figure 8 and Figure 14 - Figure 15 As shown, during use, after starting cylinder 4, cylinder 4 pushes the two side positioning plates 5 to move towards each other until the pad 20 is in contact with the terminal block. When the positioning plate 5 moves, the second pull rope 28 fixed on the back pulls the rotating rod 27 to rotate. At this time, the second torsion spring 29 stores power, and the rotating rod 27 drives the telescopic rod 30 to rotate through the bevel gear connector. The inner rod of the telescopic rod 30 drives the threaded rod 31 with the shaft to rotate synchronously. The comb-shaped pressure plate 32 connected to the outer thread of the threaded rod 31 moves along the sliding space inside the positioning plate 5. The specific situation of adjusting the preload by contacting the clamping spring 19 is as follows: When clamping large-sized terminals, the pressure plate 32 moves outward, and the pressure plate 32 squeezes the clamping spring 19, increasing the compression amount and increasing the preload to ensure stability; when clamping small-sized thin terminals, the pressure plate 32 moves inward, reducing the preload on the clamping spring 19 to avoid damaging the terminals. At the same time, the piezoelectric sheet 21 embedded in the pad 20 generates a piezoelectric effect due to compression, and the electricity is stored in the battery 22 for backup to power the motor 23.

[0031] A laser cutting process for manufacturing terminal blocks includes the following steps: 1. According to the specifications of the terminal block to be processed, adjust the moving distance of the positioning plates 5 on both sides by the cylinder 4 until the positioning plates 5 clamp the terminal block, start the dust collection device inside the machine body 1, and connect the dust collection wave tube 6. The multi-axis laser cutting arm 2 is aligned with the focal position of the laser cutting head to perform laser cutting. 2. During the movement and clamping process of the positioning plate 5, the suction wave tube 6 adaptively adjusts the opening range and opening size through the swing range adjustment component, while expanding the arc and shortening the opening height to maintain suction power. Third, after the positioning plate 5 is pressed against the wiring terminal, the electric power generated by the piezoelectric effect drives the motor 23 to work, and the suction tube 6 oscillates back and forth through the half gear 24, the full gear 25 and the first torsion spring 26 to improve the suction effect. Fourth, during the movement and clamping process of the positioning plate 5, the preload adjustment component synchronously adjusts the preload of the clamping spring 19, so that the contact pressure between the positioning plate 5 and the terminal block can be adaptive, maintaining stability for large sizes and avoiding damage to small sizes, thereby improving processing quality.

[0032] After cutting, cylinder 4 drives positioning plate 5 to move in the opposite direction, second pull rope 28 loosens, second torsion spring 29 resets and drives rotating rod 27, telescopic rod 30 and threaded rod 31 to rotate in the opposite direction, pressure plate 32 moves back, clamping spring 19 returns to its initial state; at the same time, connecting rod 8 pulls slider 9 and piston rod 12 to reset, pressure in adjusting sleeve 14 is released, side plate 13 retracts, dust suction tube 6 stops swinging, dust suction equipment is turned off, device returns to standby state, waiting for the next batch of terminal processing.

[0033] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A laser cutting device for producing terminal blocks, comprising a body (1), wherein a multi-axis laser cutting arm (2) is installed on the side wall of the body (1), and a base (3) is symmetrically installed on the top of the body (1), wherein a positioning plate (5) for clamping terminal blocks is connected to the top of the base (3) via a cylinder (4). Its features are: The top of the positioning plate (5) is rotatably provided with a dust-absorbing wave tube (6). The interior of the positioning plate (5) is provided with an adjustment component for the swing range of the dust-absorbing wave tube (6). The two sides of the dust-absorbing wave tube (6) are connected to the inner side of the long end of the side plate (13) which is scissor-shaped and rotatably connected. The side plate (13) and the dust-absorbing wave tube (6) form a fan-shaped dust-absorbing structure. A pad (20) is provided on the outer end face of the positioning plate (5), and the pad (20) is in contact with the wiring terminal. A clamping spring (19) is provided between the outer end face of the positioning plate (5) and the pad (20). A preload adjustment component for the clamping spring (19) is provided inside the positioning plate (5).

2. The laser cutting device for manufacturing terminal blocks according to claim 1, characterized in that: The swing range adjustment assembly includes a sleeve (11) fixed on the inner wall of the transverse groove (10). The transverse groove (10) is symmetrically opened on the side of the positioning plate (5). A piston rod (12) is slidably connected in the sleeve (11). The sleeve (11) is connected to the inner wall of the adjustment sleeve (14) through a connecting pipe. The adjustment sleeve (14) is set between the opposite faces of the short ends of the side plate (13). The two sides of the adjustment sleeve (14) are sealed and slidably connected with a slide rod (15). The outer side of the slide rod (15) is fixedly connected to the opposite face of the short end of the side plate (13). The adjustment sleeve (14) and the slide rod (15) are both set as arc-shaped structures. The side plate (13) drives the dust suction tube (6) through the adjustment sleeve (14) and the slide rod (15) to form a dust suction range adjustment structure.

3. The laser cutting device for producing terminal blocks according to claim 2, characterized in that: A fixing plate (7) is symmetrically installed on the base (3). A connecting rod (8) is hinged on the fixing plate (7). A slider (9) is hinged to the end of the connecting rod (8). The slider (9) is slidably connected in the transverse groove (10). The slider (9) is fixedly connected to the end of the piston rod (12). The piston rod (12) forms a telescopic sliding structure with the sleeve (11) through the connecting rod (8).

4. The laser cutting device for manufacturing terminal blocks according to claim 3, characterized in that: The suction wave tube (6) has four ribs (16) symmetrically fixed at both ends. The ribs (16) are slidably connected to the inner wall of the side plate (13) by a return spring (17). The ribs (16) on both sides are divided into upper and lower parts. The upper and lower parts of each single-sided rib (16) are fixedly connected to the inner wall of the opposite side plate (13) by a first pull rope (18). The suction wave tube (6) forms a suction maintenance structure through the ribs (16), the return spring (17) and the first pull rope (18). The suction wave tube (6) is connected to the suction equipment in the body (1) through a tube.

5. The laser cutting device for producing terminal blocks according to claim 4, characterized in that: The positioning plate (5) is equipped with a motor (23), and the output end of the motor (23) is connected to a half gear (24). The outer side of the half gear (24) is meshed with a full gear (25). The half gear (24) and the full gear (25) are rotatably connected to the middle of the inner side of the positioning plate (5). The mounting shaft of the full gear (25) extends through to the top of the positioning plate (5), and a first torsion spring (26) is connected between the mounting shaft of the full gear (25) and the inside of the positioning plate (5). The mounting shaft of the full gear (25) is fixed to the bottom of the rotating shaft of the side plate (13). The dust suction pipe (6) forms a reciprocating swing structure through the half gear (24), the full gear (25) and the first torsion spring (26).

6. The laser cutting device for producing terminal blocks according to claim 5, characterized in that: A piezoelectric element (21) is embedded in the outer surface of the pad (20), and the electricity generated by the piezoelectric element (21) is stored in the battery (22). The battery (22) is installed inside the positioning plate (5). The battery (22) supplies power to the motor (23). After the positioning plate (5) clamps the terminal block, the suction tube (6) starts to move and suction.

7. The laser cutting device for producing terminal blocks according to claim 6, characterized in that: The preload adjustment assembly includes a telescopic rod (30) symmetrically rotatably connected to the top of the base (3). The internal sliding cavity of the telescopic rod (30) is set as a rectangular structure. The inner rod of the telescopic rod (30) is a rectangular structure, and the outer end of the inner rod is fitted and connected to the axis of the threaded rod (31). The threaded rod (31) is symmetrically rotatably connected to the inside of the positioning plate (5). The outer side of the threaded rod (31) is threadedly connected to a pressure plate (32). The outer end of the pressure plate (32) abuts against the clamping spring (19).

8. The laser cutting device for producing terminal blocks according to claim 7, characterized in that: The outer side of the clamping spring (19) abuts against the pad (20). The inner side of the outer end face of the positioning plate (5) has a reserved sliding space for the pressure plate (32). The pressure plate (32) is configured as a comb-shaped structure when viewed from above. The clamping spring (19) forms a preload adjustment structure through the threaded rod (31) and the pressure plate (32).

9. A laser cutting device for producing terminal blocks according to claim 8, characterized in that: The outer cylinder end of the telescopic rod (30) is connected to the rotating rod (27) through a bevel tooth connector. The rotating rod (27) is rotatably connected to the side of the fixed plate (7). A second torsion spring (29) is provided at the rotation point of the rotating rod (27) and the fixed plate (7). A second pull rope (28) is wound around the middle of the rotating rod (27). The end of the second pull rope (28) is fixedly connected to the back of the positioning plate (5).

10. A laser cutting process for manufacturing terminal blocks, applied to the laser cutting apparatus for manufacturing terminal blocks as described in any one of claims 1-9, characterized in that: Includes the following steps:

1. According to the specifications of the terminal block to be processed, adjust the moving distance of the positioning plates (5) on both sides by the cylinder (4) until the positioning plates (5) clamp the terminal block, start the dust collection device inside the machine body (1), and connect the dust collection wave tube (6). The multi-axis laser cutting arm (2) is aligned with the focal position of the laser cutting head to perform laser cutting.

2. During the movement and clamping process of the positioning plate (5), the suction wave tube (6) adjusts the opening range and opening size adaptively through the swing range adjustment component, while expanding the arc and shortening the opening height to maintain suction power.

3. After the positioning plate (5) is pressed against the wiring terminal, the electric power generated by the piezoelectric effect drives the motor (23) to work. The suction tube (6) swings back and forth through the half gear (24), the full gear (25) and the first torsion spring (26) to improve the suction effect. IV. During the movement and clamping process of the positioning plate (5), the pre-tightening force adjustment component synchronously adjusts the pre-tightening force of the clamping spring (19), so that the contact pressure between the positioning plate (5) and the terminal can be adaptive, maintaining stability in large sizes and avoiding damage in small sizes, thus improving the processing quality.

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