Flange piece punching device

Abstract

The utility model relates to a flange piece punching device. The flange piece punching device comprises an installation base connected with a piston rod of a hydraulic cylinder of a press machine, a fixing base fixed to a workbench of the press machine and a lifting disc arranged between the installation base and the fixing base. Two guide columns and two guide rods are vertically mounted on the bottom surface of the mounting seat, each guide column sequentially penetrates through the lifting disc and the fixed seat, each guide rod penetrates through the lifting disc, and a limiting stopper for supporting the lifting disc is arranged at the tail end of each guide rod; a pressing correction mechanism used for clamping a workpiece is arranged between the lifting disc and the fixing base. And a punching mechanism for punching a workpiece is mounted on the bottom surface of the mounting seat. The upper correction die and the lower correction die are used in cooperation to conduct pressure correction on a flange workpiece, so that the situation that the flange workpiece deforms during punching can be effectively avoided, and the machining quality of the flange workpiece is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of flange manufacturing technology, and in particular to a flange punching device. Background Technology

[0002] The flange workpieces of a certain model produced by our factory need to be punched by a press during the production process. The conventional punching structure is as follows: a mounting seat is fixed on the piston rod of the hydraulic cylinder of the press, and a punch is provided on the mounting seat. When punching, the workpiece is placed on the worktable of the press, and the punch is raised and lowered to punch holes in the workpiece.

[0003] Conventional punching structures have the following drawbacks during use: During the punching process, the lack of a corresponding limiting and correction structure on the workpiece can lead to deformation, thus affecting the processing quality of the flange.

[0004] Based on the above technical problems, the inventors have developed a flange punching device that can effectively solve the problem of workpiece deformation during the punching process. The punching device has been manufactured and tested, and its performance has met the expected requirements. Utility Model Content

[0005] This utility model addresses the shortcomings of existing technologies by providing a flange punching device.

[0006] This utility model is achieved through the following technical solution: a flange punching device is provided, including a mounting base connected to the piston rod of a hydraulic cylinder of a press, a fixed base fixed to the worktable of the press, and a lifting plate disposed between the mounting base and the fixed base; two guide columns and two guide rods are vertically mounted on the bottom surface of the mounting base, each guide column passing through the lifting plate and the fixed base in sequence, and each guide rod passing through the lifting plate, with a limiting stop at the end of each guide rod for supporting the lifting plate; a clamping and correction mechanism for clamping the workpiece is provided between the lifting plate and the fixed base; and a punching mechanism for punching the workpiece is mounted on the bottom surface of the mounting base.

[0007] Preferably, the punching mechanism includes multiple punches and an elastic pressure-applying component for applying pressure to the lifting plate; a mounting platform is provided on the bottom surface of the mounting base, and the multiple punches are vertically mounted on the mounting platform.

[0008] Preferably, the elastic pressure assembly includes a plurality of gas springs mounted on the bottom surface of the mounting base and arranged circumferentially, the cylinder of the gas spring being fixed to the mounting base, and the piston rod of the gas spring being used to press against the lifting plate.

[0009] Preferably, a limit bar for limiting the lifting plate is installed on the bottom surface of the mounting base.

[0010] Preferably, the clamping and correction mechanism includes an upper correction mold and a lower correction mold, wherein the upper correction mold is installed on the bottom surface of the lifting plate and the lower correction mold is installed on the top surface of the fixed base.

[0011] Preferably, the upper correction die is provided with an upper clearance hole for multiple punches to pass through, and the lower correction die is provided with a lower clearance hole for multiple punches to pass through, with the upper clearance hole and the lower clearance hole arranged opposite each other.

[0012] Preferably, the top surface of the lower correction mold is provided with a slot for the boss on the workpiece to be inserted.

[0013] Preferably, a discharge through hole is provided in the center of the fixed base, through which the punched waste material is discharged.

[0014] Preferably, a central hole is provided at the center of the lifting plate for the punch to pass through.

[0015] Preferably, ear plates are provided on both sides of the fixing base, and each ear plate is provided with a guide hole for the guide post to pass through.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention uses the combined use of an upper and lower correction mold to apply pressure and correct the flange workpiece, thereby effectively preventing deformation of the flange workpiece during punching and ensuring the processing quality of the flange parts. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention from one angle;

[0019] Figure 2 This is another perspective view of the present invention;

[0020] Figure 3 This is a perspective view showing the positional relationship between the mounting base and the lifting plate of this utility model.

[0021] Figure 4 This is another perspective view showing the positional relationship between the mounting base and the lifting plate of this utility model;

[0022] Figure 5 This is a perspective view of the lower correction mold of this utility model;

[0023] Figure 6 This is a perspective view of the flange component of this utility model;

[0024] Figure 7 This is a perspective view of the upper calibration mold of this utility model;

[0025] Figure 8 This is a perspective view of the fixing base of this utility model;

[0026] Figure 9 This is a perspective view showing the assembly relationship between the fixed base, lower correction mold, flange, and upper correction mold of this utility model.

[0027] As shown in the figure:

[0028] 1. Mounting base, 2. Guide rod, 3. Limit stop, 4. Lifting plate, 5. Guide column, 6. Ear plate, 7. Fixed base, 8. Upper alignment mold, 9. Lower clearance hole, 10. Workpiece, 11. Lower alignment mold, 12. Mounting platform, 13. Gas spring, 14. Limit bar, 15. Punch, 16. Center hole, 17. Upper clearance hole, 18. Slot, 19. Boss, 20. Discharge through hole. Detailed Implementation

[0029] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0030] like Figure 1-9 As shown, this utility model includes a mounting base 1 connected to the piston rod of the hydraulic cylinder of a press, a fixed base 7 fixed to the worktable of the press, and a lifting plate 4 disposed between the mounting base 1 and the fixed base 7. Two guide columns 5 and two guide rods 2 are vertically mounted on the bottom surface of the mounting base 1. Each guide column 5 passes through the lifting plate 4 and the fixed base 7 sequentially, and each guide rod 2 passes through the lifting plate 4. A limiting stop 3 for supporting the lifting plate 4 is provided at the end of each guide rod 2. A clamping and correcting mechanism for clamping the workpiece 10 is provided between the lifting plate 4 and the fixed base 7. A punching mechanism for punching holes in the workpiece 10 is mounted on the bottom surface of the mounting base 1.

[0031] The punching mechanism includes multiple punches 15 and an elastic pressure-applying assembly for applying pressure to the lifting plate 4. A mounting platform 12 is provided on the bottom surface of the mounting base 1, and the multiple punches 15 are vertically mounted on the mounting platform 12. The elastic pressure-applying assembly includes multiple gas springs 13 arranged circumferentially on the bottom surface of the mounting base 1. The cylinder of each gas spring 13 is fixed to the mounting base 1, and the piston rod of each gas spring 13 is used to press against the lifting plate 4.

[0032] Furthermore, a limit bar 14 for limiting the lifting plate 4 is installed on the bottom surface of the mounting base 1.

[0033] The clamping and correction mechanism includes an upper correction mold 8 and a lower correction mold 11. The upper correction mold 8 is mounted on the bottom surface of the lifting plate 4, and the lower correction mold 11 is mounted on the top surface of the fixed base 7. The upper correction mold 8 is provided with an upper clearance hole 17 for multiple punches 15 to pass through, and the lower correction mold 11 is provided with a lower clearance hole 9 for multiple punches 15 to pass through. The upper clearance hole 17 and the lower clearance hole 9 are arranged vertically opposite each other.

[0034] In this embodiment, a slot 18 is provided on the top surface of the lower correction mold 11 for the boss 19 on the workpiece 10 to be inserted.

[0035] In this embodiment, a discharge through hole 20 is provided at the center of the fixed base 7, and the punched waste material is discharged through the discharge through hole 20.

[0036] In this embodiment, a central hole 16 is provided in the center of the lifting plate 4 for the punch 15 to pass through.

[0037] In this embodiment, ear plates 6 are respectively provided on both sides of the fixed base 7, and each ear plate 6 is provided with a guide hole for the guide post 5 to pass through.

[0038] In practical use, the workpiece 10 to be punched is placed on the lower straightening die 11. Driven by the hydraulic cylinder, the mounting base 1 descends, and the lifting plate 4 descends accordingly. The upper straightening die 8 and the lower straightening die 11 close, clamping the flange workpiece 10 in the middle. As the mounting base 1 descends further, the gas spring 13 is compressed, and the reaction force of the gas spring 13 is applied to the lifting plate 4, causing the upper straightening die 8 and the lower straightening die 11 to cooperate and clamp the workpiece 10. At the same time, multiple punches 15 also descend synchronously to punch the flange workpiece. After punching is completed, the mounting base 1 rises, the lifting plate 4 rises, the upper straightening die 8 and the lower straightening die 11 separate, and the punched flange workpiece can be removed.

[0039] This invention uses the combined use of the upper correction mold 8 and the lower correction mold 11 to apply pressure and correct the flange workpiece, thereby effectively avoiding deformation of the flange workpiece during punching and ensuring the processing quality of the flange workpiece.

[0040] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A flange piercing apparatus characterized by: The device comprises a mounting base connected with a piston rod of a hydraulic cylinder of a press, a fixing base fixed with a workbench of the press, and a lifting disc arranged between the mounting base and the fixing base; two guide columns and two guide rods are vertically arranged on the bottom surface of the mounting base, each of the guide columns penetrates the lifting disc and the fixing base in sequence, and each of the guide rods penetrates the lifting disc, and a limiting stopper for supporting the lifting disc is arranged at the end of each of the guide rods; a pressing and correcting mechanism for clamping a workpiece is arranged between the lifting disc and the fixing base; and a punching mechanism for punching the workpiece is arranged on the bottom surface of the mounting base.

2. The flange punching device of claim 1, wherein: The punching mechanism comprises a plurality of punches and an elastic pressure applying assembly for applying pressure to the lifting disc; and a mounting table is arranged on the bottom surface of the mounting base, and the plurality of punches are vertically arranged on the mounting table.

3. A flange punching device according to claim 2, characterized in that: The elastic pressure applying assembly comprises a plurality of gas springs arranged in a circumferential direction on the bottom surface of the mounting base, and the cylinder body of each of the gas springs is fixed with the mounting base, and the piston rod of each of the gas springs is used for abutting against the lifting disc.

4. The flange punching device of claim 1, wherein: A limiting rod for limiting the lifting disc is arranged on the bottom surface of the mounting base.

5. The flange piercing device of claim 1, wherein: The pressing and correcting mechanism comprises an upper correcting die and a lower correcting die, the upper correcting die is arranged on the bottom surface of the lifting disc, and the lower correcting die is arranged on the top surface of the fixing base.

6. A flange punching device according to claim 5, characterized in that: An upper avoiding hole through which the plurality of punches pass is arranged on the upper correcting die, and a lower avoiding hole through which the plurality of punches pass is arranged on the lower correcting die, and the upper avoiding hole and the lower avoiding hole are arranged oppositely.

7. A flange punching device according to claim 6, characterized in that: A clamping groove into which a boss on the workpiece is embedded is arranged on the top surface of the lower correcting die.

8. The flange punching device of claim 1, wherein: A discharging through hole is arranged in the center of the fixing base.

9. The flange piercing apparatus of claim 2 wherein: A central hole through which the punch passes is arranged in the center of the lifting disc.

10. The flange piercing apparatus of claim 1 wherein: An ear plate is arranged on each of the two sides of the fixing base, and a guide hole through which the guide column penetrates is arranged on each of the ear plates.

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