Multi-station bending machine

Abstract

The utility model discloses a multi-station bending machine, which aims to solve the problem that at least two lower bending dies are mounted on a bending table and at least two upper bending dies are fixedly mounted at the bottom end of a lifting plate in the conventional multi-station bending machine, so that a workpiece cannot be processed when the workpiece is larger or longer. A guide sleeve (7) is installed on a workbench (13), a hydraulic oil cylinder (9) is arranged in machine frames (8) below the workbench (13), an oil cylinder rod on the hydraulic oil cylinder (9) penetrates through the workbench (13) and the guide sleeve (7) to be connected with a top frame (1), the transverse sections of the multiple machine frames (8) are arranged in a polygon shape, and a hydraulic station is arranged in the polygon formed by the multiple machine frames (8).

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of machining equipment, in particular to a kind of multi-station bending machine consisting of rack, workbench, hydraulic cylinder, lower bending die, upper bending die and top frame. BACKGROUND

[0002] Chinese patent CN221581557U discloses such a multi-station bending device, comprising a base, the top of the base is provided with a bending table, the top of the bending table is respectively fixedly installed with a lower bending die and a top frame, the surface of the top frame is embedded with a hydraulic telescopic rod, the telescopic end of the hydraulic telescopic rod is fixedly installed with a lifting plate, the lifting plate is slidably connected with the inner wall of the top frame, the bottom end of the lifting plate is fixedly installed with an upper bending die, the positions of the lower bending die and the upper bending die correspond, a quick discharge assembly is arranged between the base and the bending table, since the structure is installed with at least two lower bending dies on the bending table and fixedly installed with at least two upper bending dies at the bottom end of the lifting plate, when the workpiece is larger or longer, it cannot be processed. SUMMARY

[0003] The utility model aims at providing a kind of multi-station bending machine with simple structure, small floor area, can process larger or longer workpiece, ensure processing accuracy, improve production efficiency.

[0004] To achieve the above-mentioned purpose, the utility model discloses a kind of multi-station bending machine, which is composed of rack, workbench, hydraulic cylinder, lower bending die, upper bending die and top frame, the lower bending die is arranged on the workbench, the upper bending die is installed in the lower part of the top frame, the positions of the lower bending die and the upper bending die correspond, the workbench is arranged on the rack, the guide sleeve is installed on the workbench, the hydraulic cylinder is arranged in the rack below the workbench, the cylinder rod on the hydraulic cylinder passes through the workbench and the guide sleeve and is connected with the top frame, and a plurality of racks are arranged in a polygonal shape in the transverse section, and a hydraulic station is arranged in the polygon formed by the plurality of racks.

[0005] The guide sleeve is arranged in a cross shape in the axial section, a plurality of holes are arranged on the radial shoulder of the cross shape for facilitating the passage of bolts, the lower end of the cross-shaped guide sleeve is placed in the workbench, and threads that can cooperate with adjusting nuts are arranged on the outer surface of the upper end of the cross-shaped guide sleeve.

[0006] The guide sleeve can also be arranged in a cross shape in the axial section, a plurality of holes are arranged on the radial shoulder of the cross shape for facilitating the passage of bolts, the lower end of the cross-shaped guide sleeve is placed in the workbench, and threads that can cooperate with adjusting nuts are arranged on the outer surface of the upper end of the cross-shaped guide sleeve, and a copper sleeve is arranged on the inner surface of the upper end of the cross-shaped guide sleeve.

[0007] Limiting structures, including sleeves and limiting blocks, are provided at both ends of the top frame. The sleeves and limiting blocks form an axial cross section in the shape of a T, and the limiting blocks correspond to the adjusting nuts.

[0008] The workbench is provided with through holes at both ends to facilitate the entry of the guide sleeve, and multiple holes for fixing the guide sleeve are evenly distributed around the through holes to facilitate the passage of bolts.

[0009] Alternatively, multiple workbenches can be configured with a transverse cross-section of an annular polygon, and one side can be configured as a maintenance door for easy access to the hydraulic station.

[0010] The workbench and frame are designed with a vertical cross-section in the shape of a door.

[0011] With this structure, guide sleeves are installed on the worktable, and hydraulic cylinders are located within the frame below the worktable. The cylinder rods of the hydraulic cylinders pass through the worktable and guide sleeves and connect to the top frame. Multiple frames are arranged in a polygonal cross-section, with hydraulic stations located within the polygon formed by the multiple frames. Furthermore, since only one set of lower and upper bending dies is installed on each frame, the structure is simple, the footprint is small, it can process larger or longer workpieces, ensures processing accuracy, and improves production efficiency. Attached Figure Description

[0012] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0013] Appendix Figure 1 This is a schematic sectional view of a multi-station bending machine according to the present invention.

[0014] Appendix Figure 2 It is attached Figure 1 Left sectional view.

[0015] Appendix Figure 3 It is attached Figure 1 A diagram showing the view from below.

[0016] In the diagram: 1. Top frame 2. Upper bending die 3. Lower bending die 4. Limiting structure 5. Sleeve 6. Copper sleeve 7. Guide sleeve 8. Frame 9. Hydraulic cylinder 10. Shoulder 11. Adjusting nut 12. Limiting block 13. Worktable. Detailed Implementation

[0017] Appendix Figure 1 Appendix Figure 2 and attached Figure 3The utility model discloses a kind of multi-station bending machines, by rack 8, workbench 13, hydraulic cylinder 9, lower bending die 3, upper bending die 2 and top frame 1, lower bending die 3 is arranged on workbench 13, upper bending die 2 is installed in the lower part of top frame 1, the position of lower bending die 3 and upper bending die 2 corresponds, workbench 13 is provided on rack 8, guiding sleeve 7 is installed on the workbench 13, hydraulic cylinder 9 is arranged in the rack 8 below workbench 13, the cylinder rod on hydraulic cylinder 9 passes through workbench 13 and guiding sleeve 7 and is connected with top frame 1, and multiple rack 8 is arranged into polygonal arrangement of horizontal cross section, preferably, four rack 8 is arranged into quadrilateral arrangement of horizontal cross section, and hydraulic station is arranged in the quadrilateral formed by four rack 8;The guiding sleeve 7 is arranged into cross shape of axial cross section, a plurality of holes for facilitating bolt passing are provided on radial shoulder 10 in cross shape, so that the lower end of guiding sleeve 7 in cross shape is placed in workbench 13, and thread that can cooperate with adjusting nut 11 for controlling the stroke of upper bending die 2 is provided on the outer surface of the upper end of guiding sleeve 7 in cross shape;The guiding sleeve 7 can also be arranged into cross shape of axial cross section, a plurality of holes for facilitating bolt passing are provided on radial shoulder 10 in cross shape, so that the lower end of guiding sleeve 7 in cross shape is placed in workbench 13, and thread that can cooperate with adjusting nut 11 for controlling the stroke of upper bending die 2 is provided on the outer surface of the upper end of guiding sleeve 7 in cross shape, copper sleeve 6 is provided on the inner surface of the upper end of guiding sleeve 7 in cross shape;Limiting structure 4 including sleeve pipe 5 and limiting block 12 is respectively provided at both ends of the top frame 1, the sleeve pipe 5 sleeved with the rod of hydraulic cylinder 9 and limiting block 12 form inverted T shape of axial cross section, and limiting block 12 corresponds with adjusting nut 11;Through hole for facilitating guiding sleeve 7 to enter is respectively provided at both ends of the workbench 13, a plurality of holes for facilitating bolt passing that can fix guiding sleeve 7 are uniformly distributed on the periphery of the through hole;Multiple workbench 13 can also be arranged into annular polygon of horizontal cross section, and one side is arranged as maintenance door for facilitating access to hydraulic station;Workbench 13 and rack 8 are arranged into door shape of longitudinal cross section.

Claims

1. A multi-station bending machine, comprising a frame, a worktable, a hydraulic cylinder, a lower bending die, an upper bending die and a top frame, the lower bending die is arranged on the worktable, the upper bending die is installed on the lower part of the top frame, the positions of the lower bending die and the upper bending die correspond to each other, and the worktable is arranged on the frame, characterized in that: The guiding sleeve (7) is installed on the workbench (13), the hydraulic cylinder (9) is arranged in the frame (8) below the workbench (13), the cylinder rod on the hydraulic cylinder (9) is connected with the top frame (1) through the workbench (13) and the guiding sleeve (7), and the multiple frames (8) are arranged in a polygonal shape in the transverse section, and the hydraulic station is arranged in the polygonal shape formed by the multiple frames (8).

2. A multi-station bending machine according to claim 1, characterized in that: The guiding sleeve (7) is arranged in a cross shape in the axial section, a plurality of bolt passing holes are arranged on the radial shoulder (10) in the cross shape, the lower end of the guiding sleeve (7) in the cross shape is arranged in the workbench (13), and the outer surface of the upper end of the guiding sleeve (7) in the cross shape is provided with threads matched with the adjusting nut (11).

3. A multi-station bending machine according to claim 1, characterized in that: The guiding sleeve (7) is arranged in a cross shape in the axial section, a plurality of bolt passing holes are arranged on the radial shoulder (10) in the cross shape, the lower end of the guiding sleeve (7) in the cross shape is arranged in the workbench (13), and the outer surface of the upper end of the guiding sleeve (7) in the cross shape is provided with threads matched with the adjusting nut (11), and the inner surface of the upper end of the guiding sleeve (7) in the cross shape is provided with the copper sleeve (6).

4. A multi-station bending machine according to claim 1, characterized in that: The limiting structure (4) including the sleeve pipe (5) and the limiting block (12) is arranged at both ends of the top frame (1), the sleeve pipe (5) and the limiting block (12) are arranged in a T shape in the axial section, and the limiting block (12) corresponds to the adjusting nut (11).

5. A multi-station bending machine according to claim 1, characterized in that: The through hole through which the guiding sleeve (7) enters is arranged at both ends of the workbench (13), and a plurality of bolt passing holes for fixing the guiding sleeve (7) are uniformly distributed around the through hole.

6. A multi-station bending machine according to claim 1, characterized in that: The multiple workbenches (13) are arranged in a ring-shaped polygon in the transverse section, and one side is arranged as a maintenance door for entering and exiting the hydraulic station.

7. A multi-station bending machine according to claim 1, characterized in that: The workbench (13) and the frame (8) are arranged in a door shape in the longitudinal section.

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