Continuous stamping equipment for stamping aluminum plate

Abstract

The invention discloses continuous stamping equipment for stamping an aluminum plate. The continuous stamping equipment comprises a workbench, double positioning mechanisms which are symmetrically arranged, a middle displacement mechanism and a plurality of sets of die assemblies. The positioning mechanism bears two stamping aluminum plates through the placing plate, the position changing mechanism is driven by a hydraulic cylinder, the placing plate can be switched between an inverted splayed shape and a linear shape, and therefore the posture of a workpiece is automatically adjusted to adapt to different stamping procedures. A sliding female die is arranged in the positioning pipe on each side and is matched with an independent punch to finish two-pass punching; the position of the female die is accurately adjusted by a thin cylinder to ensure punching alignment. The supporting frame and the positioning pin provide double limiting, the attitude sensor achieves closed-loop control, and the guide column and the guide sleeve guarantee movement precision. The equipment can synchronously complete two punching procedures of two workpieces in one-time clamping, the production efficiency, the forming consistency and the automation degree are greatly improved, and the equipment is suitable for an automatic punching production line.

Description

A continuous stamping equipment for stamping aluminum sheets Technical Field

[0001] This invention relates to the technical field of maize breeding, and more specifically to a continuous stamping equipment for stamping aluminum plates. Background Technology

[0002] In existing stamping processes, multi-stage stamping of thin-walled aluminum sheet parts typically employs single-station or progressive die methods. However, traditional equipment generally suffers from the following shortcomings: First, a single stroke can only process one workpiece, limiting production efficiency; second, if multiple punching operations at different angles or positions are required (such as process hole one and process hole two), multiple clamping or die changes are often necessary, which is not only time-consuming but also prone to hole position deviations due to positioning errors, affecting product consistency; third, for workpieces that need to be stamped in different spatial postures (such as punching vertically first and then at an angle), existing equipment lacks automatic positioning capabilities, relying on manual adjustments and making it difficult to integrate into automated production lines.

[0003] Therefore, there is an urgent need for a continuous stamping equipment that can simultaneously clamp two workpieces, automatically switch postures, and complete two different stamping processes in one cycle, so as to improve cycle time, ensure accuracy, and reduce manual intervention. Summary of the Invention

[0004] The purpose of this invention is to solve the technical problems of existing stamping equipment that can only process a single workpiece at a time and that multiple clamping operations are required for multiple processes, resulting in low efficiency and poor accuracy. The invention provides a continuous stamping equipment that can process two stamped aluminum plates simultaneously and automatically complete two different stamping processes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a continuous stamping equipment for stamping aluminum plates, comprising a worktable, a positioning mechanism, a displacement mechanism, and multiple sets of mold assemblies; the displacement mechanism is located in the middle of the worktable and includes a hydraulic cylinder and a linkage assembly connected thereto; a pair of positioning mechanisms are symmetrically arranged on both sides of the displacement mechanism, each positioning mechanism including a placement plate and a positioning tube one and a positioning tube two fixed on the placement plate, the placement plate being connected to the hydraulic cylinder through the linkage assembly, the hydraulic cylinder driving the two placement plates to synchronously retract inward into an inverted V-shape or expand outward into a straight line, thereby adapting to the requirements of different stamping processes for the workpiece angle; the two ends of the positioning tube two are symmetrically provided with stamping holes, each set of mold assemblies including a die, a punch one, and a punch two installed in the corresponding stamping holes, the die being provided with punch holes one and two corresponding to punch holes one and two, respectively.

[0006] Preferably, linear guide rails are installed parallel to each other on the front and rear sides of the workbench, and sliding blocks are slidably connected to each linear guide rail. A right-angled trapezoidal sliding frame is fixed on the upper side of each sliding block. Multiple positioning pins are evenly distributed on the inclined surface of the sliding frame. Positioning holes corresponding to each positioning pin are provided on the front and rear sides of the placement plate. Positioning tube one and positioning tube two are fixed parallel to each other on the upper side of the placement plate. Positioning plates are symmetrically connected to the front and rear ends of positioning tube two. A U-shaped support frame is provided below each of the punching holes on the placement plate. The inner and outer ends of the support frame are used to provide inclined support and horizontal support for the placement plate, respectively.

[0007] Furthermore, each corner of the support frame is fixedly connected with a reinforcing rib.

[0008] Furthermore, an attitude sensor is connected to the lower side of the placement plate.

[0009] Preferably, the hydraulic cylinder is mounted below the workbench via a fixing plate, the fixing plate is connected to the middle of the workbench via multiple threaded rods, the piston rod of the hydraulic cylinder extends upward and is connected to a lifting plate, a connecting rod is fixedly connected between the front and rear sliding frames, a pair of hinge bars are hinged parallel to the connecting rod and the lifting plate, a linkage plate is connected above the lifting plate via a helical spring, and a pair of hinge seats are symmetrically hinged between the placement plate and the linkage plate.

[0010] Furthermore, guide posts are vertically provided on both sides of the linkage plate, and the guide posts slide in cooperation with the lifting plate through guide sleeves.

[0011] Preferably, the die is slidably disposed within the stamping hole, and one end of the die is connected to a thin cylinder.

[0012] Compared with the prior art, the present invention has the following advantages: The present invention realizes that two stamped aluminum plates can automatically complete two stamping processes at different angles in one clamping by means of a dual-station symmetrical layout, a hydraulically driven posture displacement mechanism and an adjustable die structure, which significantly improves production efficiency, processing consistency and automation level. Attached Figure Description

[0013] Figure 1 is a schematic diagram of the overall three-dimensional structure of the present invention.

[0014] Figure 2 is a schematic diagram of the overall front view of the present invention.

[0015] Figure 3 is a schematic diagram of the overall three-dimensional structure of the positioning mechanism.

[0016] Figure 4 is a partial first-view structural schematic diagram of the positioning mechanism.

[0017] Figure 5 is a partial second-view structural schematic diagram of the positioning mechanism.

[0018] Figure 6 is a structural schematic diagram of the displacement mechanism from a first-person perspective.

[0019] Figure 7 is a structural schematic diagram of the displacement mechanism from a second perspective.

[0020] Figure 8 is a partial first-view structural schematic diagram of the mold assembly.

[0021] Figure 9 is a partial second-view structural schematic diagram of the mold assembly.

[0022] Figure 10 is a schematic diagram of the structure of the stamped aluminum sheet after continuous stamping.

[0023] Wherein: 10-Workbench; 20-Positioning mechanism; 201-Linear guide rail; 202-Sliding block; 203-Sliding frame; 204-Positioning pin; 205-Placement plate; 205a-Positioning hole; 206-Positioning tube one; 207-Positioning tube two; 207a-Punching hole; 208-Positioning plate; 209-Support frame; 210-Reinforcing rib; 211-Attitude sensor; 30-Displacement mechanism; 301-Fixing plate; 302-Threaded rod; 3 03-Hydraulic cylinder; 304-Lifting plate; 305-Connecting rod; 306-Hinge bar; 307-Helical spring; 308-Linkage plate; 309-Guide post; 310-Guide sleeve; 311-Hinge seat; 40-Mold assembly; 401-Thin cylinder; 402-Die; 402a-Punch 1; 402b-Punch 2; 404-Punch 1; 405-Punch 2; 50-Stamped aluminum plate; 50a-Process hole 1; 50b-Process hole 2. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0025] As shown in Figures 1 to 10, this embodiment provides a continuous stamping equipment for stamping aluminum plates, including a worktable 10, a positioning mechanism 20, a displacement mechanism 30, and multiple sets of mold assemblies 40. The displacement mechanism 30 is located in the middle of the worktable 10 and includes a hydraulic cylinder 303 and a linkage assembly connected thereto. A pair of positioning mechanisms 20 are symmetrically arranged on both sides of the displacement mechanism 30. Each positioning mechanism 20 includes a placement plate 205 and a positioning tube 206 and a positioning tube 207 fixed on the placement plate 205. The placement plate 205 is connected to the linkage assembly. The part is connected to the hydraulic cylinder 303, which drives the two side placement plates 205 to synchronously retract inward into an inverted V-shape or expand outward into a straight line, thereby adapting to the requirements of different stamping processes for the workpiece angle; the two ends of the positioning tube 207 are symmetrically provided with stamping holes 207a, and each set of the mold assembly 40 includes a die 402, a punch 404 and a punch 405 installed in the corresponding stamping holes 207a. The die 402 is provided with punch holes 402a and 402b corresponding to punch holes 404 and 405, respectively.

[0026] This overall layout enables two stamped aluminum plates 50 to automatically switch postures and complete multi-station continuous stamping in a single clamping, avoiding frequent disassembly and assembly of workpieces and significantly improving production cycle time and processing consistency.

[0027] In this embodiment, linear guide rails 201 are installed parallel to each other on the front and rear sides of the workbench 10. Sliding blocks 202 are slidably connected to each linear guide rail 201. A right-angled trapezoidal sliding frame 203 is fixed on the upper side of each sliding block 202. Multiple positioning pins 204 are evenly distributed on the inclined surface of the sliding frame 203. Positioning holes 205a corresponding to each positioning pin 204 are provided on the front and rear sides of the placement plate 205. Positioning tube 1 206 and positioning tube 207 are fixed parallel to each other on the upper side of the placement plate 205. Positioning plates 208 are symmetrically connected to the front and rear ends of the positioning tube 207. A U-shaped support frame 209 is provided below each stamping hole 207a on the placement plate 205. The inner and outer ends of the support frame 209 are used to provide inclined support and horizontal support for the placement plate 205, respectively.

[0028] Furthermore, each corner of the support frame 209 is fixedly connected with a reinforcing rib 210.

[0029] The reinforcing ribs significantly improve the structural rigidity and bending resistance of the support frame 209, preventing fatigue cracking or plastic deformation under high-frequency stamping loads and extending the service life of the equipment.

[0030] Furthermore, an attitude sensor 211 is connected to the lower side of the placement plate 205.

[0031] The attitude sensor 211 can collect the spatial angle information of the placement plate 205 in real time and feed it back to the control system to realize the closed-loop adjustment of the stamping attitude and ensure that the workpiece positioning accuracy meets the high consistency stamping requirements.

[0032] In this embodiment, the hydraulic cylinder 303 is installed below the workbench 10 via a fixing plate 301. The fixing plate 301 is connected to the middle of the workbench 10 via multiple threaded rods 302. The piston rod of the hydraulic cylinder 303 extends upward and is connected to a lifting plate 304. A connecting rod 305 is fixedly connected between the front and rear sliding frames 203. A pair of hinge bars 306 are hinged parallel to the connecting rod 305 and the lifting plate 304. A linkage plate 308 is connected above the lifting plate 304 via a helical spring 307. A pair of hinge seats 311 are symmetrically hinged between the placement plate 205 and the linkage plate 308.

[0033] When the piston rod of the hydraulic cylinder 303 retracts, the lifting plate 304 descends and drives the sliding frames 203 on both sides to move inward synchronously through the hinge bars 306 on both sides. At the same time, the linkage plate 308 also moves downward under the traction of the lifting plate 304 and drives the placement plate 205 to swing inward and downward through the hinge seats 311 on both sides. When the inner edge of the placement plates 205 on both sides abuts against the inner end face of the corresponding support frame 209, the linkage plate 308 stops descending. Thereafter, as the piston rod continues to retract, the lifting plate 304 descends further, causing the helical spring 307 to be stretched. At the same time, the positioning pin 204 on the sliding frame 203 is inserted into the positioning hole 205a corresponding to the placement plate 205. Through the double limiting and support of the positioning pin 204 and the support frame 209, a stable and reliable reaction force support is provided for the punch 404 to punch the process hole 50a in the stamping process.

[0034] When the piston rod of the hydraulic cylinder 303 extends, the lifting plate 304 moves upward and drives the sliding frames 203 on both sides to move outward synchronously through the hinge bars 306 on both sides. The positioning pins 204 on the sliding frames 203 on both sides disengage from the corresponding positioning holes 205a. At this time, the coil spring 307 begins to return to its original length. As the piston rod continues to extend, the lifting plate 304 continues to drive the sliding frames 203 on both sides to move outward. At the same time, the linkage plate 308 also moves upward under the push of the lifting plate 304 and drives the placement plate 205 to swing outward and upward through the hinge seats 311 on both sides. When the lower surface of the placement plate 205 abuts against the outer end face of the support frame 209, the linkage plate 308 stops moving upward. Through the support of the support frame 209, a stable and reliable reaction force is provided for the punch 405 to punch the process hole 50b in the stamping process.

[0035] Furthermore, guide posts 309 are vertically provided on both sides of the linkage plate 308, and the guide posts 309 are slidably engaged with the lifting plate 304 through the guide sleeve 310.

[0036] The guide post 309 and the guide sleeve 310 form a precision guide pair, which limits the lateral sway of the linkage plate 308, ensures the stability of the lifting motion trajectory, and improves the repeatability accuracy of the entire displacement mechanism.

[0037] In this embodiment, the die 402 is slidably disposed within the stamping hole 207a, and one end of the die 402 is connected to a thin cylinder 401.

[0038] By driving the die 402 to move axially along the positioning tube 207 by the thin cylinder 401, the position of the die can be precisely adjusted before stamping: before stamping to form the process hole 50a on the stamped aluminum plate 50, the punch 404 is aligned directly above the punch hole 402a on the die 402; before stamping to form the process hole 50b, the punch 405 is aligned directly above the punch hole 402b, ensuring accurate stamping positioning and consistent forming quality of each process hole.

[0039] The working principle of a continuous stamping equipment for aluminum plates: S1. Clamping: Place two aluminum plates 50 on the left and right placement plates 205 respectively, aligning their preset areas with positioning tube 1 206 and positioning tube 2 207; S2. First stamping preparation: The piston rod of hydraulic cylinder 303 retracts, lifting plate 304 descends, linkage plate 308 pulls down, placement plate 205 swings inward and downward in an inverted V-shape, and at the same time, positioning pin 204 on sliding frame 203 inserts into positioning hole 205a of placement plate 205, and the inner edge of placement plate 205 abuts against the inner end face of support frame 209 to form rigid support; thin cylinder 401 pushes die 402 into position, aligning punch hole 1 402a with punch 1 404; S3. First stamping: punch 1 404 descends to punch process hole 1 50a; S4. Second stamping preparation: The piston rod of hydraulic cylinder 303 extends, driving the lifting plate 304 to move upward. Through the hinge bar 306, the sliding frame 203 is driven to unfold outward. The linkage plate 308 pushes upward in sync, causing the placement plate 205 to swing outward and upward to a horizontal state (in a straight line). At this time, the lower surface of the placement plate 205 abuts against the outer end face of the support frame 209, providing stable support for the second punch 405. The thin cylinder 401 pushes the die 402 into position, so that the second punch 402b is aligned with the second punch 405. S5. Second stamping: The second punch 405 moves downward to punch the second process hole 50b.

[0040] The entire process does not require disassembling the workpiece. The shifting mechanism 30 automatically completes the posture switching and support conversion, achieving efficient and high-precision continuous stamping.

[0041] Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not exhaustive. All modifications within the scope of this invention or its equivalents are included in this invention.

Claims

1. A continuous stamping equipment for aluminum sheets, characterized in that: The system includes a worktable (10), a positioning mechanism (20), a displacement mechanism (30), and multiple sets of mold assemblies (40). The displacement mechanism (30) is located in the middle of the worktable (10) and includes a hydraulic cylinder (303) and a linkage assembly connected thereto. A pair of positioning mechanisms (20) are symmetrically arranged on both sides of the displacement mechanism (30). Each positioning mechanism (20) includes a placement plate (205) and a positioning tube (206) and a positioning tube (207) fixed on the placement plate (205). The placement plate (205) is connected to the hydraulic cylinder (303) through the linkage assembly. The pressure cylinder (303) drives the two side placement plates (205) to synchronously retract inward into an inverted V-shape or expand outward into a straight line, thereby adapting to the requirements of different stamping processes for the workpiece angle; the two ends of the positioning tube (207) are symmetrically provided with stamping holes (207a), and each set of the mold assembly (40) includes a die (402), a punch (404) and a punch (405) installed in the corresponding stamping hole (207a). The die (402) is provided with punch hole (402a) and punch hole (402b) corresponding to punch hole (404) and punch hole (402b) respectively.

2. The continuous stamping equipment for aluminum plates according to claim 1, characterized in that: Linear guide rails (201) are installed parallel to each other on the front and rear sides of the workbench (10). Sliding blocks (202) are slidably connected to each linear guide rail (201). A right-angled trapezoidal sliding frame (203) is fixed on the upper side of the sliding block (202). Multiple positioning pins (204) are evenly distributed on the inclined surface of the sliding frame (203). Positioning holes (205a) corresponding to each positioning pin (204) are provided on the front and rear sides of the placement plate (205). Positioning tube one (206) and positioning tube two (207) are fixed parallel to each other on the upper side of the placement plate (205). Positioning plates (208) are symmetrically connected to the front and rear ends of positioning tube two (207). A U-shaped support frame (209) is provided below each stamping hole (207a) on the placement plate (205). The inner and outer ends of the support frame (209) are used to provide inclined support and horizontal support for the placement plate (205), respectively.

3. The continuous stamping equipment for aluminum plates according to claim 2, characterized in that: The hydraulic cylinder (303) is installed below the workbench (10) via a fixing plate (301). The fixing plate (301) is connected to the middle of the workbench (10) via multiple threaded rods (302). The piston rod of the hydraulic cylinder (303) extends upward and is connected to a lifting plate (304). A connecting rod (305) is fixedly connected between the front and rear sliding frames (203). A pair of hinge bars (306) are parallelly hinged between the connecting rod (305) and the lifting plate (304). A linkage plate (308) is connected above the lifting plate (304) via a helical spring (307). A pair of hinge seats (311) are symmetrically hinged between the placement plate (205) and the linkage plate (308).

4. The continuous stamping equipment for aluminum plates according to claim 2, characterized in that: Each corner of the support frame (209) is fixedly connected with a reinforcing rib (210).

5. The continuous stamping equipment for aluminum plates according to claim 2, characterized in that: An attitude sensor (211) is connected to the lower side of the placement plate (205).

6. The continuous stamping equipment for aluminum plates according to claim 3, characterized in that: The linkage plate (308) is provided with guide posts (309) on both sides, and the guide posts (309) are slidably engaged with the lifting plate (304) through the guide sleeve (310).

7. The continuous stamping equipment for aluminum plates according to claim 1, characterized in that: The die (402) is slidably disposed in the punching hole (207a), and one end of the die (402) is connected to a thin cylinder (401).

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