Multi-station bending machine

Abstract

The invention discloses a multi-station bending machine in order to solve the problem that according to an existing multi-station bending machine, at least two lower bending dies are installed on a bending table, and at least two upper bending dies are fixedly installed at the bottom end of a lifting plate, so that when a workpiece is large or long, the workpiece cannot be machined. 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 invention relates to mechanical processing equipment, in particular to a multi-station bending machine composed of a frame, a workbench, a hydraulic cylinder, a lower bending die, an upper bending die and a top frame. Background Art

[0002] Chinese patent CN221581557U discloses a multi-station bending device, including a base, a bending table is arranged on the top of the base, a lower bending die and a top frame are fixedly installed on the top of the bending table, a hydraulic telescopic rod is embedded on the surface of the top frame, a lifting plate is fixedly installed on the telescopic end of the hydraulic telescopic rod, the lifting plate is slidably connected to the inner wall of the top frame, an upper bending die is fixedly installed on the bottom end of the lifting plate, the positions of the lower bending die and the upper bending die correspond, and a quick discharge assembly is arranged between the base and the bending table. Since the structure is that at least two lower bending dies are installed on the bending table and at least two upper bending dies are fixedly installed on the bottom end of the lifting plate, when the workpiece is large or long, it cannot be processed. Summary of the invention

[0003] The purpose of the present invention is to provide a multi-station bending machine with a simple structure, a small footprint, the ability to process larger or longer workpieces, ensure processing accuracy, and improve production efficiency.

[0004] To achieve the above-mentioned purpose, the present invention provides a multi-station bending machine, which is composed of a frame, a workbench, a hydraulic cylinder, a lower bending die, an upper bending die and a top frame. The lower bending die is arranged on the workbench, and the upper bending die is installed at the lower part of the top frame. The positions of the lower bending die and the upper bending die correspond to each other. A workbench is arranged on the frame, and a guide sleeve is installed on the workbench. The hydraulic cylinder is arranged in the frame below the workbench, and the cylinder rod on the hydraulic cylinder passes through the workbench and the guide sleeve to be connected to the top frame. The multiple frames are arranged to be arranged in a polygonal shape with a transverse cross-section, and a hydraulic station is arranged in the polygon formed by the multiple frames.

[0005] The guide sleeve is arranged to have a cross-shaped axial cross-section, and a plurality of holes for bolts to pass through are arranged on the cross-shaped radial shoulder, so that the lower end of the cross-shaped guide sleeve is placed in the workbench, and a thread that can cooperate with the adjusting nut is arranged on the outer surface of the upper end of the cross-shaped guide sleeve.

[0006] The guide sleeve can also be arranged to have a cross-shaped axial cross-section, and a plurality of holes for bolts to pass through can be arranged on the cross-shaped radial shoulder, so that the lower end of the cross-shaped guide sleeve is placed on the workbench, a thread that can cooperate with the adjusting nut is 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 respectively arranged at both ends of the top frame. The sleeves and the limiting blocks form a T-shaped axial cross section, and the limiting blocks correspond to the adjusting nuts.

[0008] Through holes for the guide sleeve to enter are respectively arranged at both ends of the workbench, and a plurality of holes for fixing the guide sleeve to facilitate the passage of bolts are evenly distributed around the through holes.

[0009] The plurality of workbenches may also be arranged to have a transverse cross-section that is an annular polygon, and one of the sides may be arranged as an inspection door for easy access to the hydraulic station.

[0010] The workbench and the frame are arranged so that the longitudinal section is in the shape of a gate.

[0011] After adopting this structure, since a guide sleeve is installed on the workbench, the hydraulic cylinder is arranged in the frame below the workbench, the cylinder rod on the hydraulic cylinder passes through the workbench and the guide sleeve and is connected to the top frame, and multiple frames are arranged to be arranged in a polygonal cross-section, and a hydraulic station is arranged in the polygon formed by the multiple frames. Since only one set of lower bending die and upper bending die is arranged on each frame, the purpose of simple structure, small footprint, ability to process larger or longer workpieces, ensuring processing accuracy, and improving production efficiency is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0013] Attached Figure 1 It is a main cross-sectional schematic diagram of a multi-station bending machine of the present invention.

[0014] Attached Figure 2 Yes Figure 1 Schematic diagram of the left section.

[0015] Attached Figure 3 Yes Figure 1 Schematic diagram of the top view.

[0016] In the figure: 1. top frame 2. upper bending die 3. lower bending die 4. limit structure 5. sleeve 6. copper sleeve 7. guide sleeve 8. frame 9. hydraulic cylinder 10. waistcoat 11. adjusting nut 12. limit block 13. workbench. DETAILED DESCRIPTION

[0017] Attached Figure 1 , Attachment Figure 2 and attached Figure 3The multi-station bending machine of the present invention is shown, which is composed of a frame 8, a workbench 13, a hydraulic cylinder 9, a lower bending die 3, an upper bending die 2 and a top frame 1. The lower bending die 3 is arranged on the workbench 13, and the upper bending die 2 is installed at the lower part of the top frame 1. The positions of the lower bending die 3 and the upper bending die 2 correspond to each other. The workbench 13 is arranged on the frame 8, and a guide 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 passes through the workbench 13 and the guide sleeve 7 and the top frame 1. The guide sleeve 7 is connected, and multiple racks 8 are arranged in a polygonal arrangement in a transverse cross section. Preferably, four racks 8 are arranged in a quadrilateral arrangement in a transverse cross section, and a hydraulic station is arranged in the quadrilateral formed by the four racks 8; the guide sleeve 7 is arranged in a cross-shaped axial cross section, and a plurality of holes for bolts to pass through are arranged on the cross-shaped radial shoulder 10, so that the lower end of the cross-shaped guide sleeve 7 is placed in the workbench 13, and an adjusting nut 11 capable of controlling the stroke of the upper bending die 2 is arranged on the outer surface of the upper end of the cross-shaped guide sleeve 7 The guide sleeve 7 can also be set to have a cross-shaped axial cross section, and a plurality of holes for bolts to pass through are provided on the cross-shaped radial shoulder 10, so that the lower end of the cross-shaped guide sleeve 7 is placed in the workbench 13, and a thread that can cooperate with the adjusting nut 11 for controlling the stroke of the upper bending die 2 is provided on the outer surface of the upper end of the cross-shaped guide sleeve 7, and a copper sleeve 6 is provided on the inner surface of the upper end of the cross-shaped guide sleeve 7; the limiting structures 4 including the sleeve 5 and the limiting blocks 12 are respectively provided at both ends of the top frame 1, and the sleeve The sleeve 5 equipped with the hydraulic cylinder 9 rod and the limit block 12 form an inverted T-shaped axial section, and the limit block 12 corresponds to the adjusting nut 11; through holes are provided at both ends of the workbench 13 to facilitate the entry of the guide sleeve 7, and a plurality of holes that can fix the guide sleeve 7 and facilitate the passage of bolts are evenly distributed around the through hole; the plurality of workbenches 13 can also be arranged to have a ring-shaped polygonal transverse section, and one of the sides is arranged to be an inspection door for easy entry and exit of the hydraulic station; the workbench 13 and the frame 8 are arranged to have a door-shaped longitudinal section.

Claims

1. A multi-station bending machine, consisting of a frame, a workbench, a hydraulic cylinder, a lower bending die, an upper bending die and a top frame, wherein the lower bending die is arranged on the workbench, the upper bending die is arranged at the lower part of the top frame, the positions of the lower bending die and the upper bending die correspond to each other, and a workbench is arranged on the frame, characterized in that: A guide sleeve (7) is installed on the workbench (13), a hydraulic cylinder (9) is arranged in a frame (8) below the workbench (13), a cylinder rod on the hydraulic cylinder (9) passes through the workbench (13) and the guide sleeve (7) to be connected to the top frame (1), and a plurality of frames (8) are arranged to form a polygonal arrangement in transverse cross-section, and a hydraulic station is arranged in the polygon formed by the plurality of frames (8).

2. A multi-station bending machine according to claim 1, characterized in that: The guide sleeve (7) is arranged to have a cross-shaped axial cross section, and a plurality of holes for bolts to pass through are arranged on the cross-shaped radial shoulder (10), so that the lower end of the cross-shaped guide sleeve (7) is placed in a workbench (13), and a thread that can cooperate with the adjusting nut (11) is arranged on the outer surface of the upper end of the cross-shaped guide sleeve (7).

3. A multi-station bending machine according to claim 1, characterized in that: The guide sleeve (7) is arranged to have a cross-shaped axial cross section, and a plurality of holes for bolts to pass through are arranged on the cross-shaped radial shoulder (10), so that the lower end of the cross-shaped guide sleeve (7) is placed in a workbench (13), a thread that can cooperate with the adjusting nut (11) is arranged on the outer surface of the upper end of the cross-shaped guide sleeve (7), and a copper sleeve (6) is arranged on the inner surface of the upper end of the cross-shaped guide sleeve (7).

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

5. The multi-station bending machine according to claim 1, characterized in that: Through holes for the guide sleeve (7) to enter are respectively provided at both ends of the workbench (13), and a plurality of holes for fixing the guide sleeve (7) and for bolts to pass through are evenly distributed around the through holes.

6. The multi-station bending machine according to claim 1, characterized in that: The plurality of workbenches (13) are arranged to have a transverse cross-section that is an annular polygon, and one of the sides is arranged to be an inspection door for easy access to the hydraulic station.

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

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