A laser cutting machine suitable for new energy battery connecting piece processing

Abstract

The application relates to the technical field of laser cutting and discloses a laser cutting machine suitable for new energy battery connecting piece processing, which comprises a machine table, a blanking assembly, a leveling assembly and multiple sets of feeding assemblies; the machine table is a frame type welded frame, a cutting movement module composed of a linear guide rail and a laser cutting head is arranged on the machine table; the leveling assembly is installed at the feeding end of the machine table and is used for roll pressing and straightening of a blank D; multiple sets of feeding assemblies are arranged in an equidistant array along the length direction of the machine table, a multi-station parallel processing mode is formed, compared with a traditional single-station equipment, multi-position feeding and cutting operations can be synchronously carried out, the overall production capacity is greatly improved, and the new energy battery connecting piece mass continuous production demand is adapted. Each set of feeding assembly is independently configured with a cutting seat and a clamping unit, blank clamping and conveying are completed by relying on a built-in feeding cylinder drive, feeding actions are stable and quick in response, and orderly operation of each station is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of laser cutting technology, and more specifically to a laser cutting machine suitable for processing connectors for new energy batteries. Background Technology

[0002] Against the backdrop of the rapid development of new energy vehicles and energy storage industries, the demand for battery connectors such as flexible copper busbars used in power batteries continues to rise. Flexible copper busbars are made of multiple layers of ultra-thin copper foil composites. The material is thin and light, the surface is easily damaged, and high processing precision is required. Traditional tool cutting and stamping cutting are mechanical contact processing methods. The processing involves extrusion, impact, and friction, which can easily cause copper foil delamination, warping, burrs on the cut, and workpiece deformation. It is also easy to create indentations on the surface. At the same time, the wear and tear on tools and molds is high, and it is inconvenient to switch specifications, making it difficult to ensure the quality of finished products and production flexibility.

[0003] Laser cutting, with its core advantage of non-contact processing, has become the mainstream process for processing soft copper busbars: the entire processing is without mechanical contact or rigid external force, which can effectively avoid damage and deformation of copper foil; the laser energy is concentrated, the kerf is narrow, the heat-affected zone is small, the cut surface is flat and smooth without burrs, no secondary trimming is required, the quality of the finished product is far superior to traditional cutting methods, and it can be flexibly adapted to different specifications of workpieces, making it more versatile.

[0004] Currently, conventional soft copper busbar laser cutting equipment on the market still has significant shortcomings, especially in the coordination of material feeding and cutting operations. Existing equipment mostly adopts a single independent feeding structure, with the feeding station and laser cutting station operating independently. The feeding and laser cutting actions cannot be effectively linked, and most rely on manual step-by-step operation or separate electrical control systems for driving. This results in delayed process connections and low overall production efficiency. At the same time, the single-station operation mode makes it difficult to achieve continuous cyclic processing, which cannot meet the needs of mass production.

[0005] Some simple multi-station equipment simply adds feeding points without realizing the mechanical and electrical linkage between cutting movement and automatic material replenishment. When the laser cutting head moves, each station cannot complete the automatic feeding and replenishment actions synchronously, resulting in asynchronous actions and insufficient automation.

[0006] In summary, existing laser equipment fails to optimize the multi-station linked feeding and synchronous laser cutting working mode for the characteristics of soft copper busbar processing, thus failing to fully leverage the technological advantages of laser cutting and restricting production efficiency and processing stability. Therefore, designing a dedicated laser cutting machine that can realize multi-station array feeding, automatic material replenishment triggered by laser cutting head movement, and equipped with leveling and unloading structures is an urgent need in this field. Summary of the Invention

[0007] To address the aforementioned shortcomings of existing technologies, this invention provides a laser cutting machine suitable for processing new energy battery connectors. It employs multiple sets of feeding components arranged in an equidistant array along the length of the machine, forming a multi-station parallel processing mode. Compared to traditional single-station equipment, it can simultaneously perform multi-position feeding and cutting operations, significantly increasing overall production capacity. This machine is well-suited to the large-scale continuous production needs of new energy battery connectors and effectively solves the problem that existing laser equipment has failed to optimize the multi-station linkage feeding + synchronous laser cutting working mode for the characteristics of soft copper busbar processing, thus failing to fully leverage the technological advantages of laser cutting.

[0008] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a laser cutting machine suitable for processing connectors of new energy batteries, including a machine base, a feeding assembly, a leveling unit, and multiple feeding assemblies; The machine is a frame-type welding machine, and the machine is equipped with a cutting motion module consisting of linear guide rails and a laser cutting head. The leveling unit is installed at the feed end of the machine and is used to straighten the billet using D-roller pressure. Multiple sets of the feeding components are arranged in an equidistant array along the length of the machine. Each set of feeding components includes a cutting seat and a clamping unit. The clamping unit has a built-in feeding cylinder, which drives the clamping unit to clamp the blank D and transport it to the cutting seat station. The feeding assembly is located on the discharge side of the cutting station and includes a flip-up support frame; The linear guide rail sliding end is equipped with an electrical trigger, which is electrically linked to the feeding cylinder of each feeding assembly. During the laser cutting head movement, the corresponding feeding cylinder is triggered to complete automatic material replenishment.

[0009] Furthermore, the clamping unit includes a U-shaped frame, a clamping plate, and a conversion component; the feeding cylinder is connected to the conversion component, and when the conversion component moves horizontally with the feeding cylinder, it drives the clamping plate to move vertically downward, cooperating with the U-shaped frame to clamp the blank D; The inner bottom surface of the U-shaped frame and the bottom surface of the clamping plate are both coated with an elastic clamping layer.

[0010] Furthermore, the conversion component is a U-shaped connecting seat, which is fixed to the top of the U-shaped frame and connected to the telescopic end of the feeding cylinder; the connecting seat is symmetrically provided with inclined guide grooves Q on the left and right sides, and a guide rod is rotatably mounted on the upper end of the clamping plate, with both ends of the guide rod embedded in the inclined guide grooves Q on both sides; a vertical guide pair is provided between the clamping plate and the inner wall of the U-shaped frame to constrain the clamping plate to slide only in the vertical direction.

[0011] Furthermore, toothed plate seats C1 are fixed on both the left and right outer sides of the connecting seat, and gears C2 are coaxially fixed at both ends of the guide rod. The gears C2 mesh with the toothed plate seats C1 on the same side to form a gear and rack transmission pair.

[0012] Furthermore, the electrical triggering element includes a touch frame and a touch switch K1; the touch frame is fixed to the sliding end of the linear guide rail and moves synchronously with the laser cutting head, and a touch switch K1 is embedded in the outer wall of each group of cutting seats; after the touch frame presses the touch switch K1, the touch switch K1 sends a reset command to the corresponding feeding cylinder.

[0013] Furthermore, the cutting seat is provided with a through-hole for the blank D to pass through, and the cutting seat is also provided with a secondary positioning and locking mechanism, which includes a vertically movable abutment block and a horizontally movable transmission block. The transmission block and the clamping block form an inclined transmission pair through an inclined contact surface. The horizontal sliding of the transmission block can drive the clamping block to move down and press the blank D. The lower end face of the clamping block is provided with an elastic clamping part.

[0014] Furthermore, the upper outer side of the clamping plate is integrally formed with an inclined protrusion, and the force-bearing end of the transmission block extending outward is an inclined surface. The inclined protrusion is adapted to the force-bearing inclined surface of the transmission block. When the clamping unit feeds the material into place, the inclined protrusion squeezes the transmission block, and simultaneously realizes the secondary clamping of the blank D and the downward pressing and locking of the clamping block.

[0015] Furthermore, a guide rail is horizontally installed on the inner sidewall of the cutting seat, and the clamping unit is assembled on the sliding end of the guide rail; The guide rail includes a guide frame and a guide seat, with the guide seat fixedly connected to the U-shaped frame; a stopper is installed at the discharge end of the guide frame, the stopper including two symmetrically arranged stop plates, an elastic abutment layer on the inner side of the stop plate, and the stop plate is hinged by a rotating shaft and equipped with a torsion spring to form a one-way material stopping structure.

[0016] Furthermore, a positioning and locking limit block is slidably installed inside the guide frame. A touch switch K2 is embedded inside the limit block. The touch switch K2 is connected to the control circuit of the feeding cylinder. When the guide seat is reset to the limit position, it touches the touch switch K2 to control the feeding cylinder to stop. The single feeding length can be changed by sliding and adjusting the position of the limit block.

[0017] Furthermore, the feeding assembly also includes a belt conveyor; one end of the support frame is hinged to a hinge seat, which is fixed to the outside of the cutting seat, and a counterweight is fixed to the bottom of the support frame; the support frame is provided with adjustable positioning parts on both sides for limiting and correcting the width direction of the billet D.

[0018] The technical solution provided by this invention has the following advantages compared with the prior art: 1. This equipment adopts multiple sets of feeding components arranged in an equidistant array along the length of the machine, forming a multi-station parallel processing mode. Compared with traditional single-station equipment, it can simultaneously carry out multi-position feeding and cutting operations, significantly improving overall production capacity and adapting to the needs of large-scale continuous production of new energy battery connectors. Each set of feeding components is independently equipped with a cutting seat and clamping unit, relying on the built-in feeding cylinder to complete the clamping and conveying of the blank. The feeding action is stable and responsive, ensuring orderly operation of each station.

[0019] 2. The machine is equipped with a cutting motion module consisting of a linear guide rail and a laser cutting head. An electrical trigger is installed at the sliding end of the linear guide rail, and it is electrically linked to the feeding cylinders of each feeding component. During the laser cutting head's movement along the guide rail, the corresponding feeding cylinder is automatically triggered to complete the material replenishment action. This achieves integrated operation of laser shifting, automatic material replenishment, and continuous cutting, eliminating the need for manual intervention or separate timing control. The process is tightly connected, completely solving the problems of disconnected feeding and cutting actions and delayed cycle time in traditional equipment.

[0020] 3. The clamping unit can stably clamp the blank and accurately transport it to the cutting station. The clamping and feeding actions are integrated into one unit, with a simple structure and low failure rate. The clamping action is achieved by mechanical transmission, which ensures firm clamping and uniform force distribution. It can effectively avoid blank slippage and displacement during feeding, ensuring that the blank is in a consistent position every time it is fed. This provides a precise positioning basis for laser cutting and ensures consistent cutting dimensions from the source. Attached Figure Description

[0021] 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 some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a planar schematic diagram of the present invention; Figure 3 This is a schematic diagram of the feeding assembly of the present invention; Figure 4 This is a schematic diagram of the cutting seat of the present invention; Figure 5 This is a cross-sectional view of the cutting seat of the present invention; Figure 6 This is a schematic diagram of the clamping unit of the present invention; Figure 7 This is a cross-sectional front view of the clamping unit of the present invention; Figure 8This is a cross-sectional view of the guide rail of the present invention; Figure 9 This is a schematic diagram of the structure of the stopper of the present invention.

[0023] The labels in the diagram represent: 10. Machine base; 11. Linear guide rail; 12. Laser cutting head; 13. Contact frame; 20. Feeding assembly; 21. Support frame; 22. Belt conveyor; 23. Articulated seat; 24. Counterweight; 25. Positioning part; 30. Leveling unit; 40. Feeding assembly; 41. Cutting seat; 411. Clamping block; 412. Transmission block; 413. Inclined protrusion; 42. Clamping unit; 421. Feeding cylinder; 422. U-shaped frame; 423. Clamping plate; 424. Connecting seat; 425. Guide rod; 43. Guide rail; 431. Guide frame; 432. Guide seat; 433. Stop plate; 434. Limit block. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0025] The present invention will be further described below with reference to embodiments.

[0026] Example: Please see Figures 1 to 9 This invention provides a technical solution: a laser cutting machine suitable for processing connectors for new energy batteries. The main body of the machine is integrated from four functional units: a machine base 10, a feeding assembly 20, a leveling unit 30, and multiple feeding assemblies 40. The machine base 10, as the supporting base of the whole machine, adopts a frame-type welded frame, which has high rigidity and vibration resistance, and can effectively offset the vibration generated by the high-speed laser cutting motion and copper cutting, ensuring processing accuracy. The laser cutting actuator is mounted on the machine base 10, which consists of a linear guide rail 11 and a laser cutting head 12, forming a linear cutting motion module.

[0027] The feeding assembly 40 is an independent automatic clamping and feeding unit. A single feeding assembly 40 includes a cutting seat 41 and a clamping unit 42 with integrated clamping function. The clamping unit 42 has a built-in feeding cylinder 421 as a linear drive power source. The feeding cylinder 421 outputs linear thrust, which drives the clamping unit 42 and the clamped strip blank D to be conveyed to the cutting seat 41 station along a preset trajectory, completing the automated feeding action. No manual intervention is required throughout the process, which is suitable for the mass continuous production needs of new energy battery connectors.

[0028] The unloading assembly 20 undertakes the processes of receiving, flipping, and conveying the workpiece after cutting. The core component is the support frame 21. The support frame 21 adopts an angle-flipping hinge structure. Under normal conditions, it maintains a horizontal posture to support the cutting area of ​​the blank D, avoiding problems such as blank suspension and shaking, large burrs, and dimensional deviation during laser cutting. When the blank D is completely cut by the laser and the finished battery connector is separated from the raw material, the support frame 21 flips and tilts downward under the weight of the workpiece. Gravity is used to make the finished workpiece slide automatically down the inclined surface of the support frame, realizing unpowered tilting unloading.

[0029] The leveling unit 30 is integrally and securely assembled at the feeding end of the machine base 10. It performs leveling treatment on the thin copper strip and soft copper busbar billets D commonly used in new energy battery connectors. Since long copper billets are prone to bending, warping, and local uneven deformation during the slitting, rolling, and transfer processes, the leveling unit 30 uses multiple sets of upper and lower pressure rollers to roll straighten the billet D, ensuring that the surface of the billet D fed into the cutting station is flat, thus avoiding defects such as cutting contour deviation and inaccurate positioning caused by billet deformation from the source.

[0030] Multiple sets of feeding components 40 are arranged in a linear, equidistant array along the length of the machine base 10, forming a multi-station parallel processing layout. The overall frame of the laser-cut part is fixedly installed above the cutting seat 41 of each set of feeding components 40. The linear guide rail 11 serves as the motion reference for the laser cutting head 12, which can drive the laser cutting head 12 to reciprocate along a straight line, sequentially completing contour cutting and fixed-length cutting of the blanks D at each station to process standard new energy battery connectors. An electrical trigger is fixedly installed at the sliding end of the linear guide rail 11. This trigger forms an electrical linkage logic with the feeding cylinder 421 of each set of feeding components 40. When the laser cutting head 12 completes the cutting of the blank D at the current station and moves along the linear guide rail 11 to the cutting area of ​​the next adjacent cutting seat 41, the trigger moves synchronously, automatically controlling the corresponding feeding component 40 to complete the blank D replenishment action, realizing the full-process linkage of cutting, shifting, and automatic replenishment, greatly improving the automation level of the equipment and the overall processing cycle.

[0031] See attached document Figure 6 and Figure 7The clamping unit 42 is a linkage mechanism integrating linear conveying and synchronous clamping, mainly composed of a U-shaped frame 422, a clamping plate 423, and a conversion component with a built-in transmission structure. The feeding cylinder 421 provides linear reciprocating power for the entire mechanism. When the feeding cylinder 421 extends and drives the U-shaped frame 422 and the clamping plate 423 to make a linear feeding displacement, the matching conversion component synchronously generates a mechanical transmission action, driving the clamping plate 423 to move vertically downward, so that the clamping plate 423 and the U-shaped frame 422 cooperate to form a clamping pair, clamping and fixing the blank D placed between them. This realizes a self-clamping feeding mode that completes the moving feeding and workpiece clamping simultaneously, eliminating the separate clamping and releasing steps, simplifying the action logic, and shortening the process time.

[0032] An elastic clamping layer is laminated and pasted on the inner bottom surface of the U-shaped frame 422 and the pressing bottom surface of the clamping plate 423. This elastic layer is made of wear-resistant rubber or polyurethane. On the one hand, it can increase the friction coefficient of the clamping contact surface, improve the clamping stability of thin copper strip blanks D, and prevent the workpiece from slipping or moving during feeding. On the other hand, the elastic material can form a flexible contact, avoiding the appearance defects such as indentations, dents, and scratches caused by rigid clamping on the surface of thin copper material, ensuring the surface quality of the finished battery connector, and at the same time, it can be adapted to blanks with slight thickness deviations, improving the versatility of the mechanism.

[0033] See attached document Figure 6 and Figure 7 The conversion component is an inclined plane transmission mechanism that realizes the conversion of "linear motion to vertical clamping motion". The core component is a U-shaped connecting seat 424. The connecting seat 424 is fixedly mounted on the top of the U-shaped frame 422, and the center position of the connecting seat 424 is rigidly connected to the telescopic end of the feeding cylinder 421 to ensure that the cylinder thrust can be completely transmitted to the entire clamping mechanism.

[0034] The connecting seat 424 has symmetrical inclined guide grooves Q on both sides. The guide grooves Q are inclined sliding groove structures and are the core working surfaces for realizing motion conversion. At least one guide rod 425 is rotatably mounted on the upper end of the clamping plate 423 through the bracket. The left and right ends of the guide rod 425 extend and are embedded in the inclined guide grooves Q on both sides respectively. A vertical guide pair is assembled between the clamping plate 423 and the inner wall of the U-shaped frame 422. The guide pair consists of guide posts and guide sleeves, which strictly constrain the clamping plate 423 to slide vertically in a straight line, limiting its horizontal displacement and deflection.

[0035] When the feeding cylinder 421 drives the U-shaped frame 422 and the connecting seat 424 to make a horizontal linear feeding displacement, the inclined guide groove Q moves horizontally synchronously with the connecting seat 424. The thrust of the inclined surface drives the guide rod 425 to generate a vertical displacement along the trajectory of the guide groove Q, which in turn drives the clamping plate 423 to slide downward, ultimately achieving automatic clamping of the billet D. The entire mechanism relies on pure mechanical inclined surface transmission to achieve action linkage, without the need for additional clamping cylinders, electromagnets, or other driving components. It has a compact structure, low failure rate, and fast response speed.

[0036] See attached document Figure 7 The left and right outer walls of the connecting seat 424 are respectively fixedly installed with toothed plate seats C1, which are long straight tooth structures; the two ends of the guide rod 425 are respectively fixed with gears C2, and the gears C2 on both sides correspond one-to-one with the toothed plate seats C1 on the same side to form a gear and rack meshing pair.

[0037] When the guide rod 425 undergoes downward displacement under the action of the inclined guide groove Q, the gear C2 rolls along the tooth surface of the gear plate seat C1. The gear and rack meshing structure can precisely constrain the motion trajectory of the guide rod 425, making the inclined plane transmission process smoother and more stable, effectively avoiding faults such as the guide rod 425 getting stuck, unevenly worn, or jammed in the groove. At the same time, rolling friction replaces the traditional sliding friction of the groove, significantly reducing the contact wear between the guide rod 425 and the inner wall of the guide groove Q, extending the service life of the transmission components, reducing the frequency of later maintenance and operation and maintenance costs, and ensuring that the transmission accuracy of the mechanism remains unchanged under long-term continuous operation.

[0038] See attached document Figure 1 , Figure 2 , Figure 4 and Figure 5 The trigger is an electrical sensing component that enables the linkage control between the laser cutting head 12 and the feeding cylinder 421. It consists of two parts: a touch switch K1 and a touch frame 13. The touch frame 13, as a follower actuator, is rigidly fixed to the sliding end of the linear guide rail 11 and can synchronously perform linear reciprocating motion with the laser cutting head 12. The touch switch K1 is a contact-type electrical control switch, which is embedded in the outer wall of each cutting seat 41 in an embedded installation manner. It has strong protection and can avoid switch failure caused by dust and copper shavings contamination.

[0039] The vertical contact surface of the contact frame 13 remains in contact with the outer wall of the cutting seat 41. During the movement of the laser cutting head 12, the contact frame 13 passes through the contact switches K1 of each station in sequence. The electrical logic of this mechanism is as follows: when the contact frame 13 contacts and briefly presses the contact switch K1 and then moves away with the cutting head, the contact switch K1 receives the on / off signal and immediately sends a reset control command to the feeding cylinder 421 of the corresponding station, driving the feeding cylinder 421 to retract back to its original position, completing the gripping and feeding of the new round of blank D. The station linkage is achieved by mechanical contact, the control logic is simple and reliable, the anti-interference ability is strong, it is suitable for the complex electromagnetic environment of the workshop, and realizes automatic cyclic feeding of multiple stations.

[0040] See attached document Figure 5 The cavity of the cutting seat 41 has a through-hole that runs from front to back. The through-hole is a conveying channel for the blank D. After the clamping unit 42 clamps the blank D, it can drive the blank D through the through-hole and extend to the laser cutting area above the cutting seat 41 to complete the positioning and cutting.

[0041] The cutting seat 41 integrates a two-stage positioning and locking mechanism, including a clamping block 411 that can move vertically up and down, and a transmission block 412 that can slide horizontally left and right. The lower end face of the clamping block 411 is fitted with an elastic clamping part, which further protects the surface of the thin copper billet through flexible contact, while increasing pre-tightening friction. The inner end of the transmission block 412 and the top of the clamping block 411 are both machined into matching inclined contact surfaces, forming an inclined transmission pair. When the transmission block 412 is subjected to external force and slides horizontally, the inclined surface pressure drives the clamping block 411 to overcome its own weight and move vertically downwards, ultimately pressing the clamping block 411 against the billet D inside the through-hole, thus performing a secondary clamping and locking of the fed billet D. This structure, together with the front clamping unit 42, forms a dual positioning system, completely eliminating the slight displacement of the billet D during high-speed laser cutting, ensuring the accuracy of the cut position and the consistency of the dimensions.

[0042] See attached document Figure 5 and Figure 7 The upper outer side of the clamping plate 423 is integrally formed with an inclined protrusion 413; the force-bearing end of the transmission block 412 extends outward and extends beyond the cutting seat 41, and the force-bearing end is also processed into an inclined surface. The angle of the inclined surface is parallel to and perfectly matched with the inclined surface of the inclined protrusion 413, and the two are at the same horizontal height.

[0043] When the clamping unit 42 carries the blank D forward and moves as a whole to the preset position of the cutting seat 41, the inclined protrusion 413 on the top of the clamping plate 423 first contacts and squeezes the force-bearing inclined surface of the transmission block 412. On the one hand, it can form a reverse pushing force on the clamping plate 423, further improving the downward clamping strength of the clamping plate 423 on the blank D and preventing the workpiece from loosening. On the other hand, the inclined protrusion 413 pushes the transmission block 412 to move horizontally inward, and then drives the clamping block 411 to move downward to press the blank D through the inclined surface transmission between the transmission block 412 and the clamping block 411. The entire structure relies on the clamping unit 42, the transmission block 412, and the clamping block 411 to form a purely mechanical linkage clamping transmission chain. The secondary locking is automatically completed at the same time as the material is fed into place, without the need for additional power components and electrical control. The action synchronization is high and the response is without delay.

[0044] See attached document Figure 3 , Figure 8 and Figure 9 The cutting seat 41 is fixedly mounted on the machine frame of the machine base 10. The guide slide rail 43 is horizontally installed on the inner side wall of the cutting seat 41. The clamping unit 42 is mounted on the sliding execution end of the guide slide rail 43. When the feeding cylinder 421 drives the clamping unit 42 to perform feeding and resetting movements, the entire mechanism strictly slides along the straight trajectory of the guide slide rail 43 to ensure that the feeding path is straight and to prevent deviation or running off course.

[0045] The guide rail 43 consists of a guide frame 431 and a guide seat 432 forming a sliding pair. The guide seat 432 is slidably fitted inside the guide frame 431 with clearance. The outer wall of the guide seat 432 is rigidly fixed to the U-shaped frame 422 to achieve synchronous transmission of power and motion. A stop element is installed at the discharge end of the guide frame 431. The stop element consists of two stop plates 433 arranged symmetrically on the left and right. The inner surfaces of the two stop plates 433 are covered with elastic abutment layers, and the two stop plates 433 are arranged symmetrically and inclined to form a constricted limiting structure.

[0046] When the clamping unit 42 completes feeding and the loading cylinder 421 drives the mechanism to reset backward, if the billet D tends to move in the opposite direction with the clamping mechanism, the billet D will press against the inclined stop plates 433 on both sides. Utilizing the self-locking principle of the inclined surface and the friction of the elastic pressing layer, the two stop plates 433 firmly press against the upper and lower surfaces of the billet D, effectively preventing the billet D from moving in the opposite direction with the clamping unit 42, ensuring that the workpiece always stays at the cutting position. The two stop plates 433 are fixed to the end of the guide frame 431 by a special mounting bracket. The root of the stop plate 433 adopts a pivot hinge structure, and a torsion spring is installed at the pivot position. The torsion spring continuously provides a reset preload force for the stop plate 433. During normal feeding, the billet can push the stop plate 433 forward to pass through. During reset, the stop plate 433 automatically returns to its original position and locks the workpiece, realizing the one-way material stopping function.

[0047] See attached document Figure 8See attached Figure 8 A limiting block 434 is slidably installed inside the cavity of the guide frame 431. A touch switch K2 is embedded in the inner end face of the limiting block 434. The touch switch K2 is electrically connected to the control circuit of the feeding cylinder 421. When the clamping unit 42 returns to its original position and slides to its limit position along with the guide seat 432, the end of the guide seat 432 touches the touch switch K2. The switch immediately outputs an electrical signal to control the feeding cylinder 421 to stop its retraction action, thus completing the reset limit and cylinder start / stop control.

[0048] The limiting block 434 is mounted inside the guide frame 431 with a sliding adjustable structure. After the position is adjusted, it is mechanically locked in place by fastening bolts. Operators can slide the limiting block 434 back and forth to adjust its installation position according to the target processing length of the battery connector, thereby changing the reset stroke of the guide seat 432 and thus changing the single feeding length, achieving fixed-length cutting of workpieces of different specifications and lengths. This equipment is equipped with multiple independent feeding components 40, each of which can individually adjust the position of the limiting block 434. Therefore, the equipment can simultaneously process new energy battery connectors of various lengths at different workstations, significantly improving the equipment's flexibility and processing adaptability.

[0049] See attached document Figure 1 , Figure 2 , Figure 4 and Figure 5 In addition to the support frame 21, the unloading assembly 20 also includes a belt conveyor 22 fixedly installed on the discharge side of the machine base 10; the finished battery connectors after laser cutting and separation slide down along the support frame 21 at an incline and fall directly onto the carrying belt of the belt conveyor 22, and are centrally transported by the belt conveyor 22 to the receiving box or the next process station to realize automated continuous material receiving.

[0050] The outer end of the support frame 21 is hinged to the hinge seat 23, which is fixed to the outer side of the cutting seat 41 by fasteners, so that the support frame 21 can swing up and down around the hinge axis. The bottom outer side of the support frame 21 is fixedly equipped with a counterweight 24, which forms a torque balance by its own weight: when there is no workpiece load on the support frame 21, the counterweight 24 makes the support frame 21 automatically maintain a horizontal support posture, waiting for the next batch of blank D to be positioned and supported; when the cutting is completed and the finished workpiece is pressed on the support frame, the weight of the workpiece breaks the torque balance, the support frame 21 flips and tilts downward to complete the material sliding and unloading. After the workpiece slides down, the counterweight 24 drives the support frame 21 to automatically return to the horizontal state, realizing the cycle action.

[0051] The upper end of the support frame 21 is provided with a limiting part, and the left and right sides of the support frame are respectively equipped with adjustable positioning parts 25; the two positioning parts 25 can be finely adjusted left and right according to the width of the blank D, and perform double-sided limiting and correction of the blank D conveyed to the cutting area, limiting the left and right deviation of the workpiece, further ensuring the lateral dimensional accuracy of laser cutting, and adapting to the processing of battery connector blanks of different width specifications.

[0052] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A laser cutting machine suitable for processing connectors for new energy batteries, characterized in that: It includes a machine base (10), a feeding assembly (20), a leveling unit (30), and multiple feeding assemblies (40); The machine base (10) is a frame welding frame, and the machine base (10) is equipped with a cutting motion module consisting of a linear guide rail (11) and a laser cutting head (12); The leveling unit (30) is installed at the feed end of the machine base (10) and is used to straighten the billet by roller pressing; Multiple sets of the feeding components (40) are arranged in an equidistant array along the length of the machine (10). Each set of feeding components (40) includes a cutting seat (41) and a clamping unit (42). The clamping unit (42) has a built-in feeding cylinder (421). The feeding cylinder (421) drives the clamping unit (42) to clamp the blank D and transport it to the cutting seat (41) station. The unloading assembly (20) is located on the unloading side of the cutting station and includes a flip-up support frame (21). The linear guide rail (11) is equipped with an electrical trigger at its sliding end. The electrical trigger is electrically linked to the feeding cylinder (421) of each feeding assembly (40). During the movement of the laser cutting head (12), the corresponding feeding cylinder (421) is triggered to complete the automatic feeding.

2. The laser cutting machine for processing new energy battery connectors according to claim 1, characterized in that: The clamping unit (42) includes a U-shaped frame (422), a clamping plate (423), and a conversion component; the feeding cylinder (421) is connected to the conversion component. When the conversion component moves horizontally with the feeding cylinder (421), it drives the clamping plate (423) to move vertically downward, and cooperates with the U-shaped frame (422) to clamp the blank D. The inner bottom surface of the U-shaped frame (422) and the pressing bottom surface of the clamping plate (423) are both coated with an elastic clamping layer.

3. A laser cutting machine suitable for processing new energy battery connectors according to claim 2, characterized in that: The conversion component is a U-shaped connecting seat (424), which is fixed to the top of the U-shaped frame (422) and is fixedly connected to the telescopic end of the feeding cylinder (421). The connecting seat (424) is symmetrically provided with inclined guide grooves Q on the left and right sides. The upper end of the clamping plate (423) is rotatably equipped with a guide rod (425), and the two ends of the guide rod (425) are respectively embedded in the inclined guide grooves Q on both sides. A vertical guide pair is provided between the clamping plate (423) and the inner wall of the U-shaped frame (422) to constrain the clamping plate (423) to slide only in the vertical direction.

4. A laser cutting machine suitable for processing connectors for new energy batteries according to claim 3, characterized in that: The connecting seat (424) has a toothed plate seat C1 fixed on both the left and right sides. The guide rod (425) has a gear C2 fixed on both ends coaxially. The gear C2 meshes with the toothed plate seat C1 on the same side to form a gear and rack transmission pair.

5. A laser cutting machine suitable for processing connectors for new energy batteries according to claim 1, characterized in that: The electrical triggering device includes a touch frame (13) and a touch switch K1; the touch frame (13) is fixed to the sliding end of the linear guide rail (11) and moves synchronously with the laser cutting head (12); each set of cutting seats (41) has a touch switch K1 embedded in the outer wall; after the touch frame (13) presses the touch switch K1, the touch switch K1 sends a reset command to the corresponding feeding cylinder (421).

6. A laser cutting machine suitable for processing connectors for new energy batteries according to claim 2, characterized in that: The cutting seat (41) is provided with a through opening for the blank D to pass through. The cutting seat (41) is also provided with a secondary positioning and locking mechanism, which includes a vertically movable abutting block (411) and a horizontally movable transmission block (412). The transmission block (412) and the pressing block (411) form an inclined transmission pair through the inclined contact surface. The horizontal sliding of the transmission block (412) can drive the pressing block (411) to move down and press the blank D. The lower end face of the pressing block (411) is provided with an elastic pressing part.

7. A laser cutting machine suitable for processing new energy battery connectors according to claim 6, characterized in that: The clamping plate (423) has an integrally formed inclined protrusion (413) on the outer side of the upper end. The force-bearing end of the transmission block (412) is an inclined surface. The inclined protrusion (413) is adapted to the force-bearing inclined surface of the transmission block (412). When the clamping unit (42) feeds the material into place, the inclined protrusion (413) squeezes the transmission block (412) to simultaneously realize the secondary clamping of the blank D and the downward locking of the pressing block (411).

8. A laser cutting machine suitable for processing connectors for new energy batteries according to claim 1, characterized in that: The inner wall of the cutting seat (41) is horizontally equipped with a guide rail (43), and the clamping unit (42) is assembled on the sliding end of the guide rail (43); The guide rail (43) includes a guide frame (431) and a guide seat (432), and the guide seat (432) is fixedly connected to the U-shaped frame (422); a stopper is installed at the discharge end of the guide frame (431), and the stopper includes two symmetrically arranged stop plates (433). An elastic abutment layer is provided on the inner side of the stop plate (433). The stop plate (433) is hinged by a rotating shaft and equipped with a torsion spring to form a one-way material stopping structure.

9. A laser cutting machine suitable for processing new energy battery connectors according to claim 8, characterized in that: The guide frame (431) has a slidably mounted positioning and locking limit block (434) inside. The limit block (434) has a touch switch K2 embedded inside. The touch switch K2 is connected to the control circuit of the feeding cylinder (421). When the guide seat (432) is reset to the limit position, it touches the touch switch K2, which controls the feeding cylinder (421) to stop. The position of the limit block (434) can be adjusted by sliding to change the single feeding length.

10. A laser cutting machine suitable for processing connectors of new energy batteries according to claim 1, characterized in that: The feeding assembly (20) also includes a belt conveyor (22); one end of the support frame (21) is hinged to a hinge seat (23), the hinge seat (23) is fixed on the outside of the cutting seat (41), and a counterweight (24) is fixed at the bottom of the support frame (21); the support frame (21) is provided with adjustable positioning parts (25) on both sides for limiting and correcting the width direction of the blank D.

Images