Special-shaped copper strip finish rolling forming device

Abstract

The invention discloses a special-shaped copper strip finish rolling forming device, and relates to the technical field of copper strip production and processing. A special-shaped copper strip finish rolling forming device comprises a main body mechanism which comprises an input bin and an output bin. A finish rolling assembly is arranged between the input bin and the output bin; the finish rolling assembly is composed of four forming assemblies. The forming assembly comprises a shaping mechanism, the shaping mechanism comprises two bottoms, and a first bottom roller assembly is installed between the two bottoms; the upper surface of the bottom is fixedly connected with rail frames, and a molding assembly is installed between the two rail frames. Pressing mechanisms are arranged on the two sides of the shaping mechanism correspondingly, each pressing mechanism comprises two base plates, and a second bottom roller assembly is installed between the two base plates; second rail grooves are formed in the upper portion of the base plate in a penetrating mode, and a pressing assembly is arranged between the two second rail grooves. And the total deformation of the anisotropic copper strip is decomposed into four gradients, so that the stress concentration problem is remarkably reduced, and the forming stability is improved.

Description

Technical Field

[0001] This invention relates to the field of copper strip production and processing technology, specifically to a precision rolling forming device for irregularly shaped copper strips. Background Technology

[0002] Irregularly shaped copper strips (such as copper strips with non-flat cross-sections like curved grooves) are widely used in high-end electronic connectors, conductive components for precision instruments, and busbars for new energy vehicles due to their excellent conductivity, mechanical properties, and spatial adaptability. As downstream industries continue to demand higher product precision, the precision rolling process has become a core factor restricting product quality.

[0003] Existing irregularly shaped copper strip precision rolling forming equipment mainly uses symmetrically arranged rolls to roll and form copper strips, with the roll profile matching the irregular cross-section. This structure relies on a single pressure adjustment to achieve deformation, which has the following defects: stress concentration easily occurs on the inner side of the arc-shaped cross-section (residual stress can reach 150-200MPa), leading to warping in subsequent processing; uneven pressure distribution between the roll surface and the copper strip easily forms indentations or cracks at the root of the arc groove.

[0004] Therefore, in order to address the problems of poor surface quality and large tension fluctuations during the precision rolling process of irregular copper strips, it is urgent to develop a precision rolling forming device for irregular copper strips to solve the aforementioned problems. Summary of the Invention

[0005] The purpose of this invention is to provide a precision rolling and forming apparatus for irregularly shaped copper strips to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a special-shaped copper strip precision rolling forming device, comprising a main body structure, the main body structure comprising a base, an input chamber fixedly connected to one end of the upper surface of the base, and an output chamber fixedly connected to the other end of the upper surface of the base;

[0007] A precision rolling assembly is provided between the input and output compartments;

[0008] The finishing rolling assembly consists of four forming components arranged in sequence;

[0009] The molding component includes a shaping mechanism, which includes a bottom with two fixedly connected bases, and a first bottom roller assembly is installed between the two bottoms;

[0010] A rail frame is fixedly connected to the center of the upper surface of each bottom, and an adjustable molding component is installed between two rail frames;

[0011] The shaping mechanism is provided with pressing mechanisms installed on the bottom on both sides. Each pressing mechanism includes two base plates, and a second bottom roller assembly flush with the first bottom roller assembly is installed between the two base plates.

[0012] Each of the substrates has a second groove extending through its upper part, and an adjustable pressing component is provided between the two second grooves.

[0013] A first support mechanism for reinforcement is connected between the second shaping roller of the shaping component and the third roller shaft of the pressing component, and a second support mechanism for reinforcement is connected between the first roller shaft of the first bottom roller component and the second roller shaft of the second bottom roller component.

[0014] As a preferred embodiment of the present invention, the first bottom roller assembly includes a centrally located first bottom roller, the first bottom roller is connected to a coaxial first roller shaft through the first bottom roller, and both ends of the first roller shaft pass through the bottom and are equipped with rotators fixed to the outer side of the bottom.

[0015] The upper sides of the first bottom roller assembly are respectively provided with first support rollers, the upper side of the first support roller is flush with the upper side of the first bottom roller, and the end of the first support roller is movably connected to the bottom through a bearing.

[0016] The molding component is directly opposite the first bottom roller component. The molding component includes a centrally located first molding roller. A coaxial second molding roller is inserted through the first molding roller. Both ends of the second molding roller are movably sleeved with bearings. The end sleeves are adapted to slide rail frames. A first cylinder is fixedly connected to the upper end of the rail frame. The output shaft of the first cylinder passes through the upper wall of the rail frame and is fixedly connected to the end sleeve.

[0017] Electrical rails are respectively embedded at both ends of the two opposing surfaces of the bottom.

[0018] Each of the first cylinders has a top post fixedly connected to its upper side at the fixed end, and the two top posts have a first track groove on their opposite surfaces.

[0019] As a preferred technical solution of the present invention, an oiling mechanism for applying oil is provided above the molding component. The oiling mechanism includes an oil tank corresponding to the first molding roller. A tank cover is embedded in the middle of the upper wall of the oil tank. Box rods adapted to be inserted into the first rail groove are fixedly connected to both sides of the oil tank.

[0020] The lower surface of the oil tank is fixedly connected to two sides of a limiting rod for limiting the first shaping roller, and the lower end of the limiting rod is fixedly connected to a limiting clamp adapted to snap onto the second shaping roller.

[0021] An oil drum that fits the first shaping roller is fixedly connected to the middle of the lower surface of the oil tank. The inside of the oil drum is filled with an inner block that fits the first shaping roller. An oil inlet that connects to the oil tank is opened through the inner block.

[0022] As a preferred embodiment of the present invention, the second bottom roller assembly includes a centrally located second bottom roller, the second bottom roller being connected through and coaxially to a second roller shaft, and a first motor embedded in the substrate is installed at both ends of the second roller shaft.

[0023] The upper sides of the second bottom roller assembly are respectively provided with second support rollers, the upper side of the second support roller is flush with the upper side of the second bottom roller, and the end of the second support roller is movably connected to the base plate through a bearing.

[0024] The pressing assembly is directly opposite the second bottom roller assembly. The pressing assembly includes a centrally located first pressing roller. The first pressing roller is connected to a coaxial third roller shaft. A second motor that slides into the second rail groove is installed at both ends of the third roller shaft. A second cylinder is fixedly connected to the upper end of the substrate. The output shaft of the second cylinder passes through the upper wall of the second rail groove and is fixedly connected to the second motor.

[0025] A second pressing roller is fixedly sleeved at the middle of the first pressing roller;

[0026] The surface of the second pressing roller near the input chamber is provided with a diamond-shaped groove;

[0027] Limiting rings are fixedly sleeved at both ends of the first pressing roller, and the cross-section of the limiting rings is trapezoidal.

[0028] The back sides of the two substrates are respectively fixedly connected with second pressing rollers that fit the bottom, and the lower parts of the back sides of the two second pressing rollers are respectively fixedly connected with rail blocks for sliding insertion of electric rails.

[0029] As a preferred embodiment of the present invention, an oil collection mechanism for scraping oil is provided above the pressing component near the output chamber. The oil collection mechanism includes a scraper that fits against the pressing component. The scraper is inclined and close to the oiling mechanism.

[0030] A U-shaped rod is fixedly connected to the side of the scraper away from the pressing component. Rod blocks are fixedly connected to both ends of the rod, and the rod blocks are fixedly connected to the upper side of the fixed end of the second cylinder.

[0031] A suction hood is fixedly connected to the upper surface of the scraper, and a suction pipe is connected between the suction hood and the oil tank through the pump body.

[0032] As a preferred technical solution of the present invention, the first support mechanism includes a first collar that is movably sleeved on the second shaping roller through a bearing and a second collar that is movably sleeved on the third roller shaft through a bearing, and a first hydraulic cylinder is fixedly connected between the first collar and the second collar.

[0033] The second support mechanism includes a third sleeve ring that is movably sleeved on the first roller shaft via a bearing and a fourth sleeve ring that is movably sleeved on the second roller shaft via a bearing, and a second hydraulic cylinder is fixedly connected between the third sleeve ring and the fourth sleeve ring.

[0034] As a preferred embodiment of the present invention, a detection mechanism for detection is provided on the pressing mechanism near the input chamber. The detection mechanism is directly opposite the pressing component and the shaping component. The detection mechanism includes a main block, in which detection cylinders are vertically embedded at equal intervals. A top plate is fixedly mounted on the upper surface of the main block. Three bars are movably inserted at equal intervals on the top plate. The bars are inserted into the detection cylinders. An identification disc inside the detection cylinder is fixedly sleeved on the bars. A ball cover is fixedly connected to the lower end of the bars. A spherical rolling ball is movably sleeved on the ball cover. A connecting arm is fixedly connected between the main block and the second cylinder.

[0035] Compared with the prior art, the beneficial effects of the present invention are:

[0036] (1) A special-shaped copper strip precision rolling forming device, which gradually approaches the standard size through four forming components, decomposes the total deformation of the special-shaped copper strip into four gradients, reduces the residual stress inside the arc groove of the special-shaped copper strip, reduces the warping amount in subsequent processing, avoids the problem of cracking at the root of the arc groove, significantly reduces the stress concentration problem, and improves the forming stability.

[0037] (2) A special copper strip precision rolling forming device, wherein the forming component forms a clamping effect on the special copper strip through the pressing mechanism before and after the forming mechanism, and the second pressing roller operates synchronously to apply a stable tension to the special copper strip, forming a tensile stress field, offsetting the lateral thrust during plastic deformation, reducing the amount of side bending generated during the processing of the special copper strip, reducing dynamic offset, and improving deformation stability.

[0038] (3) A special copper strip precision rolling forming device, through the interlocking of the arc groove of the special copper strip and the second pressing roller of the pressing component, keeps the deviation of the special copper strip from the positioning reference small when it is output from this section, and can be directly used as the positioning reference of the subsequent forming component, avoiding the reference reset error caused by the interval between forming components, improving the positioning continuity of adjacent forming components, reducing the cumulative positioning deviation, and improving the continuity of the positioning reference.

[0039] (4) A special copper strip precision rolling forming device, wherein a detection mechanism is set at the position where the forming component docks with the special copper strip, the ball fits into the arc groove on the special copper strip under the action of gravity, and the position of the identification disk on the three bars is identified by the detection cylinder, thereby assisting in the detection of the position of the arc groove, and improving the positioning accuracy of the special copper strip by cooperating with the positive docking of the front and rear forming components.

[0040] (5) A special copper strip precision rolling forming device, which can alarm and reverse the conveying of special copper strip to rework and adjust it when the detection cylinder detects that the identification disk on the three bars does not coincide with the set arc groove. In severe cases, manual adjustment can be carried out. The detection mechanism can detect whether the processing of special copper strip meets the standard between the forming components and make timely processing adjustments to effectively reduce the defect rate.

[0041] (6) A special copper strip precision rolling forming device, wherein under the action of rolling tension, the second pressing roller causes slight deformation in the arc-shaped groove area of ​​the special copper strip by pressure, forming a uniform tension field along the travel direction, and the auxiliary pressing force of the first pressing roller on the two sides of the flat section of the special copper strip ensures that the edge of the special copper strip is in close contact with the first pressing roller, avoiding the edge of the special copper strip from lifting due to the middle part during the pressing process, thereby improving the uniformity of the tension distribution of the special copper strip.

[0042] (7) A special copper strip precision rolling forming device, which slides along the electric rail through the control rail block to the pressing mechanism on both sides of the shaping mechanism, thereby changing the distance between the pressing mechanisms on both sides of the shaping mechanism, adapting to the characteristics of different materials, thereby changing the springback time of the pressing mechanism on the special copper strip, and flexibly adjusting it to be compatible with special copper strips of different materials, which can meet the processing needs of multiple products, improve versatility, and reduce the cost of changing the shape.

[0043] (8) A special copper strip precision rolling forming device, wherein the first support mechanism and the second support mechanism form a support between the forming mechanism and the pressing mechanism, effectively reducing the amount of structural deformation under the action of rolling force, ensuring that the dimensional tolerance of the arc cross section is stable within the design range, and improving durability and forming accuracy.

[0044] (9) A special copper strip precision rolling forming device, which uses a first support roller and a second support roller to support the conveying gap of the special copper strip, solves the problem of sagging caused by the weight of the special copper strip support gap, avoids wave-shaped deformation or cross-sectional size deviation caused by suspension, ensures that the special copper strip maintains the reference shape when entering the next forming component, and improves the surface quality stability.

[0045] (10) A special copper strip precision rolling forming device, wherein the oiling mechanism above the shaping component limits the position of the first shaping roller by limiting rods on both sides, which not only solves the maintenance problem of the first shaping roller of the shaping component, but also ensures the stability of the rolling process and greatly improves the replacement efficiency of the first shaping roller.

[0046] (11) A special copper strip precision rolling forming device, wherein an oil drum is attached to a first forming roller. When the first forming roller shapes the special copper strip, the first forming roller rolls and then the lubricating oil in the oil tank is evenly applied to the surface of the first forming roller through the oil inlet. The lubricating oil is then applied to the surface of the special copper strip through the first forming roller. The oil is automatically applied during the shaping process, thereby improving the processing efficiency of the special copper strip.

[0047] (12) A special copper strip precision rolling forming device, wherein an oil collection mechanism is mounted on the pressing mechanism near the output chamber, so as to cooperate with the rotation of the pressing component, the excess lubricating oil adhering to the second pressing roller is scraped into the oil tank by the scraper, and then the excess lubricating oil is sucked back into the oil tank by the suction pipe through the suction hood, so as to avoid the waste of lubricating oil, form the circulation of lubricating oil, and improve the green and environmentally friendly performance. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of the structure of the present invention;

[0049] Figure 2 This is a schematic diagram of the molding component of the present invention;

[0050] Figure 3 This is a schematic diagram showing the position of the oiling mechanism of the present invention;

[0051] Figure 4 This is a schematic diagram of the shaping mechanism of the present invention;

[0052] Figure 5 This is a schematic diagram of the plastic component of the present invention;

[0053] Figure 6 This is a schematic diagram of the oiling mechanism of the present invention;

[0054] Figure 7 This is a bottom view schematic diagram of the oiling mechanism of the present invention;

[0055] Figure 8 This is a schematic diagram of the pressing mechanism of the present invention;

[0056] Figure 9 This is a schematic diagram of the pressing component of the present invention;

[0057] Figure 10 This is a schematic diagram of the limiting ring of the present invention.

[0058] Figure 11 This is a schematic diagram showing the location of the oil collection mechanism of the present invention;

[0059] Figure 12 This is a schematic diagram of the oil collection mechanism of the present invention;

[0060] Figure 13 This is a schematic diagram showing the position of the first support mechanism of the present invention;

[0061] Figure 14 This is a schematic diagram of the first support mechanism of the present invention;

[0062] Figure 15 This is a schematic diagram of the testing mechanism of the present invention;

[0063] Figure 16 This is a schematic diagram of the interior of the main block of the present invention.

[0064] In the diagram: 1. Main body mechanism; 101. Base; 102. Input chamber; 103. Output chamber; 2. Shaping mechanism; 201. Bottom; 202. First bottom roller; 203. First roller shaft; 204. Rotator; 205. First support roller; 206. Rail frame; 207. First shaping roller; 208. Second shaping roller; 209. End sleeve; 210. First cylinder; 211. Electric rail; 212. Top column; 213. First rail groove; 3. Oiling mechanism; 301. Oil tank; 302. Tank cover; 303. Tank rod; 304. Limiting rod; 305. Limiting clamp; 306. Oil drum; 307. Inner block; 308. Oil inlet; 4. Pressing mechanism; 401. Base plate; 402. Second bottom roller; 403. Second roller shaft; 404. First motor; 405. Second support roller; 40 6. Second track groove; 407. First pressing roller; 408. Third roller shaft; 409. Second motor; 410. Second cylinder; 411. Second pressing roller; 412. Diamond groove; 413. Limiting ring; 414. Plate cover; 415. Track block; 5. Oil collection mechanism; 501. Scraper; 502. Plate rod; 503. Rod block; 504. Suction cover; 505. Suction pipe; 6. First support mechanism; 601. First collar; 602. First hydraulic cylinder; 603. Second collar; 7. Second support mechanism; 701. Third collar; 702. Second hydraulic cylinder; 703. Fourth collar; 8. Detection mechanism; 801. Main block; 802. Detection cylinder; 803. Top plate; 804. Strip rod; 805. Identification disc; 806. Ball cover; 807. Rolling ball; 808. Connecting arm. Detailed Implementation

[0065] 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.

[0066] Example: Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 8 , Figure 9, Figure 13 A special-shaped copper strip precision rolling forming device includes a main body 1, the main body 1 includes a base 101, an input chamber 102 is fixedly connected to one end of the upper surface of the base 101, and an output chamber 103 is fixedly connected to the other end of the upper surface of the base 101.

[0067] A finishing mill assembly is provided between the input chamber 102 and the output chamber 103;

[0068] The finishing rolling assembly consists of four forming components arranged in sequence, with the finishing dimensions of the four forming components gradually approaching the standard dimensions;

[0069] The molding assembly includes a shaping mechanism 2, which includes two bottoms 201 that are fixedly connected to bases 101, and a first bottom roller assembly is installed between the two bottoms 201.

[0070] Each bottom 201 has a rail frame 206 fixedly connected to the middle of its upper surface, and an adjustable molding component is installed between the two rail frames 206.

[0071] The shaping mechanism 2 is provided with pressing mechanism 4 installed on the bottom 201 on both sides. Each pressing mechanism 4 includes two base plates 401, and a second bottom roller assembly flush with the first bottom roller assembly is installed between the two base plates 401.

[0072] Each substrate 401 has a second groove 406 extending through its upper part, and an adjustable pressing component is provided between the two second grooves 406.

[0073] A first support mechanism 6 for reinforcement is connected between the second shaping roller 208 of the shaping assembly and the third roller shaft 408 of the pressing assembly, and a second support mechanism 7 for reinforcement is connected between the first roller shaft 203 of the first bottom roller assembly and the second roller shaft 403 of the second bottom roller assembly.

[0074] Please see Figure 4 , Figure 5 The first bottom roller assembly includes a centrally located first bottom roller 202, through which a coaxial first roller shaft 203 is fixedly connected. Both ends of the first roller shaft 203 pass through the bottom 201 and are mounted with a rotator 204 fixedly connected to the outside of the bottom 201.

[0075] First support rollers 205 are respectively provided on the upper two sides of the first bottom roller assembly. The upper side of the first support roller 205 is flush with the upper side of the first bottom roller 202. The end of the first support roller 205 is movably connected to the bottom 201 through a bearing.

[0076] The molding assembly is directly opposite the first bottom roller assembly. The molding assembly includes a centrally located first molding roller 207. A coaxial second molding roller 208 is inserted through the first molding roller 207. Both ends of the second molding roller 208 are movably sleeved with end sleeves 209 through bearings. The end sleeves 209 are adapted to slide rail frames 206. A first cylinder 210 is fixedly connected to the upper end of the rail frame 206. The output shaft of the first cylinder 210 passes through the upper wall of the rail frame 206 and is fixedly connected to the end sleeves 209.

[0077] Electrical rails 211 are respectively embedded at both ends of the opposite surfaces of the two bottom surfaces 201;

[0078] Each first cylinder 210 has a top post 212 fixedly connected to the upper side of its fixed end, and the opposite surfaces of the two top posts 212 are provided with first rail grooves 213.

[0079] Please see Figure 3 , Figure 6 , Figure 7 An oiling mechanism 3 for applying oil is provided above the molding component. The oiling mechanism 3 includes an oil tank 301 corresponding to the first molding roller 207. A tank cover 302 is embedded in the middle of the upper wall of the oil tank 301. A box rod 303 adapted to be inserted into the first rail groove 213 is fixedly connected to both sides of the oil tank 301.

[0080] The lower surface of the oil tank 301 is fixedly connected to two sides of the limiting rod 304 for limiting the first shaping roller 207, and the lower end of the limiting rod 304 is fixedly connected to the limiting clamp 305 adapted to snap onto the second shaping roller 208.

[0081] An oil drum 306 is fixedly connected to the middle of the lower surface of the oil tank 301 and fits the first shaping roller 207. The inside of the oil drum 306 is filled with an inner block 307 that fits the first shaping roller 207. An oil inlet 308 that connects to the oil tank 301 is opened through the inner block 307.

[0082] Please see Figure 8 , Figure 9 , Figure 10 The second bottom roller assembly includes a centrally located second bottom roller 402, through which a coaxial second roller shaft 403 is fixedly connected, and at both ends of the second roller shaft 403 a first motor 404 embedded in the base plate 401 is installed.

[0083] The upper sides of the second bottom roller assembly are respectively provided with second support rollers 405. The upper side of the second support roller 405 is flush with the upper side of the second bottom roller 402. The end of the second support roller 405 is movably connected to the base plate 401 through bearings.

[0084] The pressing assembly is directly opposite the second bottom roller assembly. The pressing assembly includes a centrally located first pressing roller 407. The first pressing roller 407 is connected to a coaxial third roller shaft 408. The two ends of the third roller shaft 408 are respectively equipped with a second motor 409 that slides into the second track groove 406. The upper end of the base plate 401 is fixedly connected to a second cylinder 410. The output shaft of the second cylinder 410 passes through the upper wall of the second track groove 406 and is fixedly connected to the second motor 409.

[0085] The second pressing roller 411 is fixedly sleeved in the middle of the first pressing roller 407;

[0086] A diamond-shaped groove 412 is provided on the surface of the second pressing roller 411 near the input chamber 102;

[0087] Limiting rings 413 are fixedly sleeved at both ends of the first pressing roller 407, and the cross section of the limiting rings 413 is trapezoidal.

[0088] The back sides of the two substrates 401 are respectively fixedly connected with second pressing rollers 411 that fit the bottom 201, and the lower parts of the back sides of the two second pressing rollers 411 are respectively fixedly connected with rail blocks 415 of sliding plug-in electric rails 211.

[0089] Please see Figure 11 , Figure 12 An oil collection mechanism 5 for scraping oil is provided above the pressing component near the output chamber 103. The oil collection mechanism 5 includes a scraper 501 that fits against the pressing component. The scraper 501 is inclined and close to the oiling mechanism 3.

[0090] A U-shaped rod 502 is fixedly connected to the side of the scraper 501 away from the pressing component. Rod blocks 503 are fixedly connected to both ends of the rod 502. The rod blocks 503 are fixedly connected to the upper side of the fixed end of the second cylinder 410.

[0091] A suction hood 504 is fixedly connected to the upper surface of the scraper 501. A suction pipe 505 is connected between the suction hood 504 and the oil tank 301 through the pump body. The suction pipe 505 is retractable.

[0092] Please see Figure 13 , Figure 14 The first support mechanism 6 includes a first collar 601 that is movably sleeved on the second shaping roller 208 via a bearing and a second collar 603 that is movably sleeved on the third roller shaft 408 via a bearing. A first hydraulic cylinder 602 is fixedly connected between the first collar 601 and the second collar 603.

[0093] The second support mechanism 7 includes a third collar 701 that is movably sleeved on the first roller shaft 203 via a bearing and a fourth collar 703 that is movably sleeved on the second roller shaft 403 via a bearing. A second hydraulic cylinder 702 is fixedly connected between the third collar 701 and the fourth collar 703.

[0094] Please see Figure 15 , Figure 16 A detection mechanism 8 for detection is provided on the pressing mechanism 4 near the input chamber 102. The detection mechanism 8 is directly opposite the pressing component and the shaping component. The detection mechanism 8 includes a main block 801. A detection cylinder 802 is vertically embedded in the main block 801 at equal intervals. A top plate 803 is fixedly mounted on the upper surface of the main block 801. Three bars 804 are movably inserted in the top plate 803 at equal intervals. The bars 804 are inserted into the detection cylinder 802. An identification disk 805 is fixedly sleeved on the bars 804 and is located inside the detection cylinder 802. The radius of the identification disk 805 is smaller than the inner diameter of the detection cylinder 802. A ball cover 806 is fixedly connected to the lower end of the bars 804. A spherical rolling ball 807 is movably sleeved on the ball cover 806. A connecting arm 808 is fixedly connected between the main block 801 and the second cylinder 410.

[0095] The working principle of this invention is as follows:

[0096] The finishing rolling assembly consists of four sequentially arranged forming components. By progressively approaching the standard dimensions through these four forming components, the total deformation of the irregular copper strip is decomposed into four gradients. The deformation of each forming component is controlled at around 20%, which avoids the stress peak caused by concentrated deformation of the irregular copper strip in single-forming rolling. The residual stress inside the arc groove of the irregular copper strip is reduced, the warping in subsequent processing is reduced, the problem of cracking at the root of the arc groove is avoided, the stress concentration problem is significantly reduced, and the forming stability is improved.

[0097] A shaping mechanism 2 is set in the middle of each forming component, and a pressing mechanism 4 is set on both sides of the shaping mechanism 2. The irregular copper strip first passes through the pressing component of a pressing mechanism 4 to achieve tension pre-tightening and position calibration, and then enters the shaping component of the shaping mechanism 2 to complete the arc-shaped body deformation. Finally, it passes through the pressing component of another pressing mechanism 4 to perform dimensional finishing and stress release, forming a continuous operation chain of constraint, deformation and shaping.

[0098] A diamond-shaped groove 412 is formed on the second pressing roller 411 of the pressing mechanism 4 near the input chamber 102. This increases friction through micro-mechanical interlocking, rather than forming the copper strip. The edges of the diamond-shaped groove 412 are rounded to avoid sharp edges causing scratches on the irregular copper strip. The pressure of the second pressing roller 411 with the diamond-shaped groove 412 is adjusted by the second cylinder 410 to about 20% of the forming pressure of the shaping component. Under this pressure, only micro-interlocking force is generated on the surface of the irregular copper strip, rather than permanent shaping indentation.

[0099] In existing technologies, irregularly shaped copper strips are directly formed using shaping components. However, irregularly shaped copper strips are prone to longitudinal movement due to instantaneous deformation and resistance fluctuations (the offset can reach ±0.1mm).

[0100] The forming component forms a clamping effect on the irregular copper strip through the pressing mechanism 4 before and after the forming mechanism 2. A diamond groove 412 is opened on one of the second pressing rollers 411 to increase the friction with the irregular copper strip and improve the positioning accuracy of the irregular copper strip. The other second pressing roller 411 operates synchronously to apply a stable tension to the irregular copper strip, forming a tensile stress field to counteract the lateral thrust during plastic deformation, reduce the side bending caused by the processing of the irregular copper strip, reduce dynamic offset, and improve deformation stability.

[0101] The shaping mechanism 2 and the pressing mechanisms 4 on both sides form a step-by-step pressing, shaping, and pressing mode, which can achieve gradient deformation of the irregular copper strip. The pressing component of the pressing mechanism 4 near the input chamber 102 pre-presses the arc-shaped groove of the irregular copper strip into a rough shape, providing a uniform reference for the shaping component. The shaping component of the shaping mechanism 2 shapes the irregular copper strip and avoids local stress concentration. The pressing component of the pressing mechanism 4 in the clean output chamber 103 "irons" the arc-shaped groove of the deformed irregular copper strip through the second pressing roller 411, so that the cross-sectional dimensional tolerance is tightened.

[0102] The precision rolling dimensions of the four forming components gradually approach the standard dimensions. The pressing mechanism 4 of the front forming component connects with the pressing mechanism 4 of the rear forming component. After the pressing component of the front forming component completes the finishing of this section, the arc-shaped groove of the non-standard copper strip and the second pressing roller 411 of the pressing component keep the deviation between the non-standard copper strip and the positioning reference small when the non-standard copper strip is output from this section. It can be directly used as the positioning reference of the rear forming component, avoiding the reference reset error caused by the interval between forming components, improving the positioning continuity of adjacent forming components, reducing the cumulative positioning deviation, and improving the continuity of the positioning reference.

[0103] A detection mechanism 8 is set at the position where the forming component docks with the non-standard copper strip. The ball 807 fits into the arc groove on the non-standard copper strip under the action of gravity. The detection cylinder 802 identifies the position of the identification disk 805 on the three bars 804, thereby assisting in the detection of the position of the arc groove. With the proper docking of the front and rear forming components, the positioning accuracy of the non-standard copper strip is improved.

[0104] When the detection cylinder 802 detects that the identification disk 805 on the three bars 804 does not coincide with the set arc groove, it can alarm and reverse the conveying of the non-standard copper strip for rework adjustment. In severe cases, manual adjustment can be performed. The detection mechanism 8 can detect whether the processing of the non-standard copper strip meets the standard between the forming components and make timely processing adjustments to effectively reduce the defect rate.

[0105] A limiting ring 413 is added to the outside of the first pressing roller 407, and guide bevels are machined on both sides of the limiting ring 413. A gap is left between the limiting ring 413 and the edge of the irregular copper strip, which not only allows space for thermal expansion, but also corrects the lateral displacement of the copper strip through the guiding effect of the bevel of the limiting ring 413.

[0106] When the irregularly shaped copper strip enters the pressing mechanism 4 near the input chamber 102, the second pressing roller 411 of the pressing assembly engages with the arc-shaped groove of the irregularly shaped copper strip, and the diamond-shaped groove 412 generates meshing friction with the arc-shaped groove of the irregularly shaped copper strip, forming a mechanical anchor. Under the action of rolling tension, the second pressing roller 411 causes a slight deformation in the arc-shaped groove area of ​​the irregularly shaped copper strip through pressure, forming a uniform tension field along the direction of travel. The auxiliary pressing force of the first pressing roller 407 on the two planar sections of the irregularly shaped copper strip ensures that the edge of the irregularly shaped copper strip is in close contact with the first pressing roller 407, avoiding the edge of the irregularly shaped copper strip from lifting due to the middle part during the pressing process, and improving the uniformity of the tension distribution of the irregularly shaped copper strip.

[0107] The pressing mechanisms 4 on both sides of the shaping mechanism 2 can be slid along the electric rail 211 via the control rail block 415, thereby changing the distance between the pressing mechanisms 4 on both sides of the shaping mechanism 2 to adapt to the characteristics of different materials. This allows for changing the springback time of the pressing mechanism 4 on the irregular copper strip, enabling flexible adjustment to make it compatible with irregular copper strips of different materials. This can meet the processing needs of various products, improve versatility, and reduce changeover costs.

[0108] The forming component and the pressing component are connected by the first support mechanism 6, and the first bottom roller component and the second bottom roller component are connected by the second support mechanism 7. The pressing mechanism 4 slides along the electric rail 211 and locks the oil inlet and outlet of the first hydraulic cylinder 602 and the second hydraulic cylinder 702 simultaneously after it is in place. The first support mechanism 6 and the second support mechanism 7 form a support between the forming mechanism 2 and the pressing mechanism 4, which effectively reduces the amount of structural deformation under the action of rolling force, ensures that the tolerance of the arc cross-section is stable within the design range, and improves durability and forming accuracy.

[0109] The upper sides of the first bottom roller assembly are respectively provided with first support rollers 205, the upper side of the first support roller 205 is flush with the upper side of the first bottom roller 202. The upper sides of the second bottom roller assembly are respectively provided with second support rollers 405, the upper side of the second support roller 405 is flush with the upper side of the second bottom roller 402. The first support rollers 205 and the second support rollers 405 support the conveying gap of the irregular copper strip, solve the problem of sagging caused by the weight of the irregular copper strip support gap, avoid the wavy deformation or cross-sectional size deviation caused by suspension, ensure that the irregular copper strip maintains the reference shape when entering the next forming assembly, and improve the surface quality stability.

[0110] The first shaping roller 207 is prone to damage due to its shaping action. Therefore, the first shaping roller 207 is movably sleeved on the second shaping roller 208, which facilitates the operation when replacing the first shaping roller 207. When using the first shaping roller 207, the oiling mechanism 3 above the shaping component limits the position of the first shaping roller 207 through the limiting rods 304 on both sides. This not only solves the maintenance problem of the first shaping roller 207 of the shaping component, but also ensures the stability of the rolling process and greatly improves the replacement efficiency of the first shaping roller 207.

[0111] The oil drum 306 is attached to the first shaping roller 207. When the first shaping roller 207 shapes the irregular copper strip, the first shaping roller 207 rolls and then the lubricating oil in the oil tank 301 is evenly applied to the surface of the first shaping roller 207 through the oil inlet 308. The lubricating oil is then applied to the surface of the irregular copper strip through the first shaping roller 207. The oil is automatically applied during the shaping process, which improves the processing efficiency of the irregular copper strip.

[0112] The first shaping roller 207 is always in contact with the lower part of the inner block 307, thereby blocking the oil outlet 308 and preventing the oil outlet 308 from causing leakage of lubricating oil in the oil tank 301.

[0113] An oil collection mechanism 5 is mounted on the pressing mechanism 4 near the output chamber 103. In conjunction with the rotation of the pressing assembly, the scraper 501 scrapes the excess lubricating oil adhering to the second pressing roller 411 into the oil tank 301. Then, the suction hood 504 connects to the oil tank 301, and the suction pipe 505 sucks the excess lubricating oil back into the oil tank 301, avoiding the waste of lubricating oil, forming a circulation of lubricating oil, and improving the green and environmentally friendly performance.

[0114] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A special copper strip precision rolling forming device, comprising a main body (1), the main body (1) comprising a base (101), an input chamber (102) fixedly connected to one end of the upper surface of the base (101), and an output chamber (103) fixedly connected to the other end of the upper surface of the base (101); A finishing mill assembly is provided between the input chamber (102) and the output chamber (103); Its features are: The finishing rolling assembly consists of four forming components arranged in sequence; The molding assembly includes a shaping mechanism (2), which includes a bottom (201) with two fixedly connected bases (101), and a first bottom roller assembly is installed between the two bottoms (201); Each bottom (201) has a rail frame (206) fixedly connected to the middle of its upper surface, and an adjustable molding component is installed between the two rail frames (206); The shaping mechanism (2) is provided with pressing mechanisms (4) installed on the bottom (201) on both sides. Each pressing mechanism (4) includes two base plates (401), and a second bottom roller assembly flush with the first bottom roller assembly is installed between the two base plates (401). Each of the substrates (401) has a second track groove (406) extending through its upper part, and an adjustable pressing component is provided between the two second track grooves (406). A first support mechanism (6) for reinforcement is connected between the second shaping roller (208) of the shaping component and the third roller shaft (408) of the pressing component, and a second support mechanism (7) for reinforcement is connected between the first roller shaft (203) of the first bottom roller assembly and the second roller shaft (403) of the second bottom roller assembly.

2. The irregular copper strip precision rolling forming device according to claim 1, characterized in that: The first bottom roller assembly includes a centrally located first bottom roller (202), the first bottom roller (202) is connected to a coaxial first roller shaft (203) through it, and the two ends of the first roller shaft (203) pass through the bottom (201) and are mounted with a rotator (204) fixed to the outside of the bottom (201); The upper sides of the first bottom roller assembly are respectively provided with first support rollers (205), the upper side of the first support roller (205) is flush with the upper side of the first bottom roller (202), and the end of the first support roller (205) is movably connected to the bottom (201) through a bearing. The molding assembly is directly opposite the first bottom roller assembly. The molding assembly includes a centrally located first molding roller (207). A coaxial second molding roller (208) is inserted through the first molding roller (207). Both ends of the second molding roller (208) are respectively movably sleeved with end sleeves (209) through bearings. The end sleeves (209) are adapted to a sliding rail frame (206). A first cylinder (210) is fixedly connected to the upper end of the rail frame (206). The output shaft of the first cylinder (210) passes through the upper wall of the rail frame (206) and is fixedly connected to the end sleeves (209). Electrical rails (211) are respectively embedded at both ends of the opposite surfaces of the two bottom surfaces (201); Each of the first cylinders (210) has a top post (212) fixedly connected to the upper side of the fixed end, and the two top posts (212) have a first track groove (213) on their opposite surfaces.

3. The irregular copper strip precision rolling forming device according to claim 2, characterized in that: The upper part of the molding component is provided with an oiling mechanism (3) for applying oil. The oiling mechanism (3) includes an oil tank (301) corresponding to the first molding roller (207). A tank cover (302) is embedded in the middle of the upper wall of the oil tank (301). The two sides of the oil tank (301) are respectively fixedly connected with a box rod (303) adapted to insert into the first rail groove (213). The lower surface of the oil tank (301) is fixedly connected to two sides of a limiting rod (304) for limiting the first shaping roller (207), and the lower end of the limiting rod (304) is fixedly connected to a limiting clamp (305) adapted to snap onto the second shaping roller (208). An oil drum (306) that fits the first shaping roller (207) is fixedly connected to the middle of the lower surface of the oil tank (301). The inside of the oil drum (306) is filled with an inner block (307) that fits the first shaping roller (207). An oil inlet (308) that connects to the oil tank (301) is opened through the inner block (307).

4. The irregular copper strip precision rolling forming device according to claim 3, characterized in that: The second bottom roller assembly includes a centrally located second bottom roller (402), through which a coaxial second roller shaft (403) is fixedly connected, and at both ends of the second roller shaft (403) a first motor (404) embedded in a base plate (401) is installed; The upper sides of the second bottom roller assembly are respectively provided with second support rollers (405), the upper side of the second support roller (405) is flush with the upper side of the second bottom roller (402), and the end of the second support roller (405) is movably connected to the substrate (401) through bearings. The pressing assembly is directly opposite the second bottom roller assembly. The pressing assembly includes a centrally located first pressing roller (407). The first pressing roller (407) is connected to a coaxial third roller shaft (408). The two ends of the third roller shaft (408) are respectively equipped with a second motor (409) that slides into the second track groove (406). The upper end of the base plate (401) is fixedly connected to a second cylinder (410). The output shaft of the second cylinder (410) passes through the upper wall of the second track groove (406) and is fixedly connected to the second motor (409). The second pressing roller (411) is fixedly sleeved at the middle of the first pressing roller (407); A diamond-shaped groove (412) is provided on the surface of the second pressing roller (411) near the input chamber (102); Limiting rings (413) are fixedly sleeved at both ends of the first pressing roller (407), and the cross section of the limiting rings (413) is trapezoidal; The back sides of the two substrates (401) are respectively fixedly connected to the second pressing rollers (411) that fit the bottom (201), and the lower part of the back sides of the two second pressing rollers (411) is respectively fixedly connected to the rail blocks (415) of the sliding plug-in electric rails (211).

5. The irregular copper strip precision rolling forming device according to claim 4, characterized in that: An oil collection mechanism (5) for scraping oil is provided above the pressing assembly near the output chamber (103). The oil collection mechanism (5) includes a scraper (501) that fits against the pressing assembly. The scraper (501) is inclined and close to the oiling mechanism (3). A U-shaped rod (502) is fixedly connected to the side of the scraper (501) away from the pressing component. Rod blocks (503) are fixedly connected to both ends of the rod (502). The rod blocks (503) are fixedly connected to the upper side of the fixed end of the second cylinder (410). A suction cover (504) is fixedly connected to the upper surface of the scraper (501), and a suction pipe (505) is connected between the suction cover (504) and the oil tank (301) through the pump body.

6. The irregular copper strip precision rolling forming device according to claim 5, characterized in that: The first support mechanism (6) includes a first collar (601) that is movably sleeved on the second shaping roller (208) through a bearing and a second collar (603) that is movably sleeved on the third roller shaft (408) through a bearing. A first hydraulic cylinder (602) is fixedly connected between the first collar (601) and the second collar (603). The second support mechanism (7) includes a third collar (701) that is movably sleeved on the first roller shaft (203) via a bearing and a fourth collar (703) that is movably sleeved on the second roller shaft (403) via a bearing. A second hydraulic cylinder (702) is fixedly connected between the third collar (701) and the fourth collar (703).

7. The irregular copper strip precision rolling forming device according to claim 4, characterized in that: A detection mechanism (8) for detection is provided on the pressing mechanism (4) near the input chamber (102). The detection mechanism (8) is directly opposite the pressing component and the shaping component. The detection mechanism (8) includes a main block (801). Detection cylinders (802) are vertically inserted into the main block (801) at equal and uniform intervals. A top plate (803) is fixedly attached to the upper surface of the main block (801). The top plate (803) has movable passages at equal and uniform intervals. Three bars (804) are inserted, and the bars (804) are inserted into the detection cylinder (802). An identification disk (805) is fixedly sleeved on the bars (804) and is located inside the detection cylinder (802). A ball cover (806) is fixedly connected to the lower end of the bars (804). A spherical rolling ball (807) is movably sleeved on the ball cover (806). A connecting arm (808) is fixedly connected between the main block (801) and the second cylinder (410).

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