Four-column double-acting oil press for stretch forming of aluminum sheet

Abstract

The utility model relates to the technical field of aluminum sheet machining, and discloses a four-column double-acting oil press for aluminum sheet stretch forming, which comprises a fixed seat, the upper end of the fixed seat is fixedly connected with the four-column double-acting oil press, two mounting frames are symmetrically arranged on one side of the fixed seat, the mounting frames are close to each other and fixedly connected with sponge, and one side of each mounting frame is fixedly connected with a moving ring. The movable ring is in threaded connection with threaded rods, the sides, close to each other, of the two threaded rods are fixedly connected, the lower ends of the threaded rods are fixedly connected with gears, one sides of the gears are meshed with half gears, and a discontinuous and continuous lubricating mechanism is introduced in the aluminum plate stretching forming process, so that the problems that traditional manual oiling efficiency is low, oiling is uneven, and the use amount of lubricating oil is difficult to control are solved; the stepping motor drives the half gear and the gear to rotate to drive the threaded rod and the moving ring, so that the mounting frame and the sponge are close to or away from the aluminum plate, the surface of the aluminum plate is lubricated, the use amount of lubricating oil is effectively controlled through an intermittent lubricating mode, excessive use is avoided, and the cleaning cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of aluminum sheet processing, and in particular to a four-column double-action hydraulic press for stretching and forming aluminum sheets. Background Art

[0002] The four-column, double-action hydraulic press is a high-precision machine used for stretching aluminum sheet metal, suitable for metal forming processes requiring complex shapes and high quality. Its dual-action function allows for independent control of the movement of the blank holder and punch, effectively preventing wrinkles or tears in the sheet metal during stretching. The machine's hydraulic system provides strong pressure and stable speed control, ensuring uniform force distribution during plastic deformation and achieving high forming precision. It is widely used in the production of aluminum parts in the automotive, aerospace, and electronics industries, improving production efficiency and quality consistency.

[0003] At present, when aluminum plates are stretched and formed, the aluminum plates are squeezed and stretched by the hydraulic press, and the friction between the two needs to be controlled. Excessive friction will cause excessive squeezing of the aluminum plates during extrusion, causing the aluminum plates to crack directly. The manual application method is slow in efficiency and cannot be evenly applied to the surface of the aluminum plates. The setting of continued application cannot well control the application amount. Therefore, a four-column double-acting hydraulic press for stretching and forming aluminum thin plates is designed to solve the above-mentioned problems. Utility Model Content

[0004] In order to solve the problem, the present application provides a four-column double-action hydraulic press for stretching aluminum sheet.

[0005] The present application provides a four-column double-acting hydraulic press for aluminum sheet stretching, which adopts the following technical solution:

[0006] A four-column double-acting hydraulic press for stretching and forming aluminum thin plates includes a fixed base, the upper end of which is fixedly connected to the four-column double-acting hydraulic press, two mounting frames are symmetrically provided on one side of the fixed base, the mounting frames are close to each other and fixedly connected to a sponge, one side of the mounting frame is fixedly connected to a movable ring, a threaded rod is threadedly connected to the movable ring, the two threaded rods are fixedly connected on one side close to each other, the lower end of the threaded rod is fixedly connected to a gear, one side of the gear is engaged with a half gear, and the upper end of the half gear is fixedly connected to a stepping motor.

[0007] Preferably, the lower end of the gear is fixedly connected to the torsion spring, the lower end of the torsion spring is fixedly connected to the mounting ring, the lower end of the mounting ring is clamped to the fixing ring, and the lower end of the fixing ring is fixedly connected to the fixing seat.

[0008] Preferably, both sides of the mounting ring are rotatably connected to the fixing blocks, one side of the fixing blocks is fixedly connected to the tension spring, one side of the tension spring is fixedly connected to the plug-in rack, and the plug-in rack is plugged into the fixing ring.

[0009] Preferably, one side of the fixing block is slidably connected to the limiting rod, and one side of the limiting rod passes through a tension spring to be fixedly connected to the plug-in bracket.

[0010] Preferably, one side of the stepper motor is fixedly connected to the mounting bracket, and the lower end of the mounting bracket is fixedly connected to the fixing seat.

[0011] Preferably, the middle portion of the lower end of the half gear is fixedly connected to a protection rod, and the lower end of the protection rod is rotatably connected to a fixing seat.

[0012] Preferably, one side of the installation frame is fixedly connected to a limiting ring, the limiting ring is slidably connected to a fixing rod, and the lower end of the fixing rod is fixedly connected to a fixing seat.

[0013] In summary, this application has the following beneficial technical effects:

[0014] In the utility model, by introducing intermittent and continuous lubrication mechanisms in the stretch forming process of the aluminum plate, the problems of low efficiency, uneven application and difficult control of lubricating oil dosage of traditional manual oiling are solved. The stepper motor drives the half gear and gear to rotate, driving the threaded rod and the moving ring, so that the mounting frame and the sponge are close to or away from the aluminum plate, thereby achieving lubrication of the aluminum plate surface. The intermittent lubrication mode effectively controls the amount of lubricating oil, avoids excessive use, and reduces cleaning costs, while the continuous lubrication mode ensures the uniformity of friction on the aluminum plate surface in complex forming processes, reduces the wear between the mold and the aluminum plate, thereby improving the forming effect. It is especially suitable for occasions with high requirements for stretching technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the main body of the application embodiment;

[0016] Figure 2 This is a schematic structural diagram of the mounting frame and sponge of an embodiment of the application;

[0017] Figure 3 Schematic diagram of the structure of the gear and half gear of the embodiment of the application;

[0018] Figure 4 It is a schematic structural diagram of the mounting ring and the fixing ring of the embodiment of the application.

[0019] Explanation of the accompanying symbols: 1. Fixed seat; 2. Four-column double-acting hydraulic press; 3. Mounting frame; 4. Sponge; 5. Moving ring; 6. Threaded rod; 7. Gear; 8. Half gear; 81. Protective rod; 9. Stepper motor; 10. Mounting frame; 11. Torsion spring; 12. Mounting ring; 13. Fixed ring; 14. Fixed block; 15. Tension spring; 16. Plug-in rack; 17. Limit rod; 18. Limit ring; 19. Fixed rod. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-4 This application is described in further detail.

[0021] The present application discloses a four-column double-action hydraulic press for stretching aluminum sheets. Figure 1-4 A four-column double-acting hydraulic press for stretching and forming aluminum thin plates includes a fixed base 1, the upper end of the fixed base 1 is fixedly connected to the four-column double-acting hydraulic press 2, two mounting frames 3 are symmetrically provided on one side of the fixed base 1, the mounting frames 3 are close to each other and fixedly connected to sponges 4, one side of the mounting frame 3 is fixedly connected to a moving ring 5, a threaded rod 6 is threadedly connected to the moving ring 5, the two threaded rods 6 are fixedly connected on one side close to each other, the lower end of the threaded rod 6 is fixedly connected to a gear 7, one side of the gear 7 engages with a half gear 8, and the upper end of the half gear 8 is fixedly connected to a stepping motor 9, the stepping motor 9 is used to drive the half gear 8 to rotate one circle, and after the half gear 8 rotates, it will drive the gear 7 on one side to rotate, and the gear 7 drives the threaded rod 6 to rotate, so that the threaded rod 6 drives the moving ring 5 to move, and the moving ring 5 drives the mounting frames 3 to approach each other, so that the sponges 4 approach each other and contact the upper and lower surfaces of the aluminum plate respectively, and the lubricating oil contained in the sponge 4 is applied to the surface of the aluminum plate.

[0022] One side of the stepping motor 9 is fixedly connected to the mounting bracket 10 , and the lower end of the mounting bracket 10 is fixedly connected to the fixing seat 1 , which plays the role of fixing the stepping motor 9 .

[0023] By adopting the above technical solution, the lower end of the gear 7 is fixedly connected to the torsion spring 11, the lower end of the torsion spring 11 is fixedly connected to the mounting ring 12, the lower end of the mounting ring 12 is clamped to the fixing ring 13, and the lower end of the fixing ring 13 is fixedly connected to the fixing seat 1. After the mounting ring 12 and the fixing ring 13 are clamped, the upper end torsion spring 11 is fixed. After the gear 7 rotates and the torsion spring 11 is torsioned, the gear 7 can be restored by the restoration of the torsion spring 11.

[0024] By adopting the above technical solution, when the torsion spring 11 is no longer needed, it is still necessary to remove the torsion spring 11. To facilitate the removal of the torsion spring 11, fixed blocks 14 are rotatably connected on both sides of the mounting ring 12. One side of the fixed block 14 is fixedly connected to the tension spring 15, and one side of the tension spring 15 is fixedly connected to the insertion bracket 16. The insertion bracket 16 is inserted into the fixing ring 13. The insertion bracket 16 on both sides can be pulled to separate the insertion bracket 16 from the fixing ring 13, and the fixed block 14 is rotated so that the fixed block 14 drives the insertion bracket 16 to rotate upward so that the insertion bracket 16 remains out of contact with the fixing ring 13. At this time, the mounting ring 12 is no longer fixed to the fixing ring 13, rendering the upper torsion spring 11 ineffective.

[0025] By adopting the above technical solution, one side of the fixed block 14 is slidably connected to the limit rod 17, and one side of the limit rod 17 passes through the tension spring 15 and is fixedly connected to the rack 16. The limit rod 17 is provided to limit the rack 16 to prevent the rack 16 from tilting.

[0026] By adopting the above technical solution, the middle part of the lower end of the half gear 8 is fixedly connected to the protection rod 81 , and the lower end of the protection rod 81 is rotatably connected to the fixing seat 1 to support the half gear 8 .

[0027] By adopting the above technical solution, one side of the mounting frame 3 is fixedly connected to the limiting ring 18, the limiting ring 18 is slidably connected to the fixing rod 19, the lower end of the fixing rod 19 is fixedly connected to the fixing seat 1, and the fixing rod 19 and the limiting ring 18 arranged on the left are used to limit the mounting frame 3 to prevent the mounting frame 3 and the movable ring 5 from rotating with the threaded rod 6.

[0028] The implementation principle of a four-column double-acting hydraulic press for stretching and forming aluminum thin plates in the embodiment of the present application is as follows: the aluminum thin plate to be stretched is passed through between the two sponges 4 and placed on the four-column double-acting hydraulic press 2. During this period, the stepper motor 9 can be started to drive the stepper motor 9 to drive the half gear 8 to rotate one circle. After the half gear 8 rotates, it will drive the gear 7 on one side to rotate. The gear 7 drives the threaded rod 6 to rotate, so that the threaded rod 6 drives the moving ring 5 to move, and the moving ring 5 drives the mounting frames 3 to approach each other, so that the sponges 4 approach each other and contact the upper and lower surfaces of the aluminum plate respectively, and the lubricating oil contained in the sponge 4 is applied to the surface of the aluminum plate. At the same time, the gear 7 drives the torsion spring 11 to twist. When the half gear 8 continues to rotate and separates from the gear 7, the torsion spring 11 drives the gear 7 to recover, so that the gear 7 rotates and drives the threaded rod 6 to rotate again. The threaded rod 6 drives the moving ring 5 to move, so that the two mounting frames 3 drive the sponge 4 away from the aluminum plate. After that, the stepper motor 9 can be started again and the above steps are repeated, thereby completing the intermittent lubrication of the aluminum plate. Intermittent oiling can control the amount of lubricant used, avoid excessive use of lubricants, save costs, and reduce the burden of cleaning. It can be used when the requirements for the aluminum sheet forming process are not high.

[0029] In addition, the racks 16 on both sides can be pulled to separate the racks 16 from the fixing ring 13, and the fixing block 14 can be rotated so that the fixing block 14 drives the rack 16 to rotate to the upper part, so that the rack 16 remains out of contact with the fixing ring 13. At this time, the mounting ring 12 is no longer fixed to the fixing ring 13, causing the upper torsion spring 11 to fail. When the half gear 8 rotates, the gear 7 is driven, so that the gear 7 drives the threaded rod 6 to rotate, and the moving ring 5 drives the mounting frame 3 to approach each other, so that the sponges 4 approach each other and contact the upper and lower surfaces of the aluminum plate respectively, and the lubricating oil contained in the sponge 4 is applied to the surface of the aluminum plate, and is not affected by the torsion spring 11, so that the sponge 4 is in continuous contact with the aluminum plate and continuously lubricated. Continuous oiling can ensure that the surface friction of the aluminum plate remains uniform during the forming process, reduce the wear between the mold and the material, improve the stability of the material flow during the stretching process, and help to obtain better forming effects, especially for complex forming processes.

[0030] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0031] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0032] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0033] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A four-column double-action hydraulic press for stretching aluminum sheets, comprising a fixed seat (1), characterized in that: The upper end of the fixing seat (1) is fixedly connected to a four-column double-acting hydraulic press (2); two mounting frames (3) are symmetrically provided on one side of the fixing seat (1); the mounting frames (3) are close to each other and fixedly connected to a sponge (4); one side of the mounting frame (3) is fixedly connected to a moving ring (5); a threaded rod (6) is threadedly connected to the moving ring (5); the two threaded rods (6) are close to each other and fixedly connected on one side; the lower end of the threaded rod (6) is fixedly connected to a gear (7); one side of the gear (7) is engaged with a half gear (8); the upper end of the half gear (8) is fixedly connected to a stepping motor (9).

2. The four-column double-action hydraulic press for aluminum sheet stretching according to claim 1, characterized in that: The lower end of the gear (7) is fixedly connected to a torsion spring (11), the lower end of the torsion spring (11) is fixedly connected to a mounting ring (12), the lower end of the mounting ring (12) is clamped to a fixing ring (13), and the lower end of the fixing ring (13) is fixedly connected to a fixing seat (1).

3. The four-column double-action hydraulic press for aluminum sheet stretching according to claim 2, characterized in that: The two sides of the mounting ring (12) are rotatably connected to the fixing blocks (14), one side of the fixing block (14) is fixedly connected to the tension spring (15), one side of the tension spring (15) is fixedly connected to the plug-in bracket (16), and the plug-in bracket (16) is plugged into the fixing ring (13).

4. The four-column double-action hydraulic press for aluminum sheet stretching according to claim 3, characterized in that: One side of the fixing block (14) is slidably connected to a limiting rod (17), and one side of the limiting rod (17) passes through a tension spring (15) and is fixedly connected to a plug-in bracket (16).

5. The four-column double-action hydraulic press for aluminum sheet stretching according to claim 1, characterized in that: One side of the stepping motor (9) is fixedly connected to a mounting frame (10), and the lower end of the mounting frame (10) is fixedly connected to a fixing seat (1).

6. The four-column double-action hydraulic press for aluminum sheet stretching according to claim 1, characterized in that: The middle portion of the lower end of the half gear (8) is fixedly connected to a protection rod (81), and the lower end of the protection rod (81) is rotatably connected to a fixing seat (1).

7. The four-column double-action hydraulic press for aluminum sheet stretching according to claim 1, characterized in that: One side of the installation frame (3) is fixedly connected to a limiting ring (18), the limiting ring (18) is slidably connected to a fixing rod (19), and the lower end of the fixing rod (19) is fixedly connected to a fixing seat (1).

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