Multi-cylinder pull-down type large ring piece bulging machine
By designing a multi-cylinder pull-down large ring forming machine, and utilizing an inverted conical forming mandrel and a hydraulic system, the problems of elliptical deformation and taper of the ring were solved, achieving material cost savings and improved processing accuracy.
Patent Information
- Application Number
- CN202423285429.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-30
AI Technical Summary
In the aerospace field, aluminum alloy and high-temperature alloy rings exhibit elliptical deformation and taper issues after quenching, leading to increased machining allowances and higher costs.
Design a multi-cylinder pull-down large ring forming machine, which adopts an inverted conical forming mandrel, a forming inclined block and an expandable mold, and controls the forming process through a hydraulic system. Combined with rotation and reset actions, it improves ellipticity and taper.
By using bulging, the machining allowance of ring parts is reduced, material costs are lowered, and machining accuracy is improved.
Smart Images
Figure CN223588062U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a ring piece expander, specifically to a multi-cylinder down-drawing type large ring piece expander. BACKGROUND
[0002] In the field of aerospace, aluminum alloy is generally quenched after being rolled and expanded, and there is oval deformation and stress after quenching. The ovality can be corrected and part of the quenching stress can be eliminated through the expanding process of the ring piece expander, thereby greatly improving the strength of the aluminum alloy.
[0003] High-temperature alloy and titanium alloy are prone to taper and oval phenomena during rolling and expansion, which leads to the need to increase the machining allowance of the ring piece during rolling and expansion, thereby greatly increasing the cost of the workpiece. UTILITY MODEL CONTENT
[0004] To solve the above problems, the utility model aims to provide a multi-cylinder down-drawing type large ring piece expander.
[0005] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows: a multi-cylinder down-drawing type large ring piece expander, comprising a fixed upper beam and a workbench fixed above the fixed upper beam, a vertical intermediate pull rod penetrating the center of the workbench, the lower end of the intermediate pull rod being fixedly connected with an intermediate sliding block below the fixed upper beam, the upper surface of the intermediate sliding block being fixedly connected with the fixed upper beam through a lower pressing oil cylinder on both sides, the lower surface of the intermediate sliding block being fixedly connected with a fixed base below the intermediate sliding block through a lifting oil cylinder on both sides, the upper end of the intermediate pull rod being fixed with an inverted conical expander core, a plurality of uniformly arranged expander inclined blocks being sleeved on the periphery of the bottom of the expander core, and an expandable expander die being sleeved on the periphery of the expander inclined blocks.
[0006] Further, a plurality of reset oil cylinders for driving the expander inclined blocks to expand, slide back and reset are arranged on the lower surface of the workbench.
[0007] Further, the workbench, the fixed upper beam and the fixed base are fixedly connected with different parts of the bottom surface of the shell through fixed footings.
[0008] Further, a pull rod guide sleeve is sleeved on the part of the intermediate pull rod penetrating the fixed upper beam.
[0009] Further, a plurality of vertical guide columns penetrate the intermediate sliding block, and the upper and lower ends of each guide column are fixedly connected with the fixed upper beam and the fixed base, respectively.
[0010] Further, guide column guide sleeves are respectively sleeved on the parts of the guide columns penetrating the intermediate sliding block.
[0011] Further, the lower end of the intermediate pull rod is fixedly connected with the intermediate sliding block through a pull rod locking nut.
[0012] Through the above setting, the utility model discloses can carry out expansion treatment to ring piece, through the utility model discloses expansion treatment, can greatly improve the ovality and taper of ring piece, thereby reduce the machining allowance of ring piece, greatly save the material cost. BRIEF DESCRIPTION OF DRAWINGS
[0013] The utility model makes further explanation in combination with the drawings.
[0014] Fig. 1 It is the front view structural schematic diagram of the utility model;
[0015] Fig. 2 It is the side view structural schematic diagram of the utility model. DETAILED DESCRIPTION
[0016] As Figs. 1-2 The utility model discloses a multi -cylinder lower pull type large -scale ring piece expansion machine, including fixed upper beam 1 and the workstation 2 of fixed in fixed upper beam 1 top, the center of workstation 2 is vertically through with intermediate pull rod 3, and the lower end of intermediate pull rod 3 is fixedly connected with the intermediate slide block 4 below fixed upper beam 1, and the upper surface both sides of intermediate slide block 4 are fixedly connected with fixed upper beam 1 through the down -pressing oil cylinder 5 respectively, and the lower surface both sides of intermediate slide block 4 are fixedly connected with the fixed base 7 below intermediate slide block 4 through the lifting oil cylinder 6 respectively, and the upper end of intermediate pull rod 3 is fixed with the expansion core cone 8 of inverted cone, and the periphery of expansion core cone 8 bottom is sheathed with a plurality of evenly arranged expansion inclined blocks 17, and the periphery of expansion inclined block 17 is sheathed with the expansion die 9 of inflatable, and the diameter of down -pressing oil cylinder 5 is greater than the diameter of lifting oil cylinder 6, so that the down -pressing oil cylinder 5 forms greater downward force, and improves expansion degree, and when ascending, only needs the force of lifting oil cylinder 6 to be much lower than down -pressing oil cylinder 5, can promote, can make the power of hydraulic oil more act on the expansion of down -pressing.
[0017] The lower surface of workstation 2 is provided with a plurality of reset oil cylinders 10 for driving expansion inclined block 17 to expand, slide and reset, and workstation 2, fixed upper beam 1 and fixed base 7 are fixedly connected with different parts of the bottom surface of the shell through fixed foot 11.
[0018] Intermediate slide block 4 is vertically through with a plurality of guide columns 13, and the upper and lower ends of each guide column 13 are fixedly connected with fixed upper beam 1 and fixed base 7 respectively, and the parts of guide column 13 through intermediate slide block 4 are respectively sheathed with guide column guide sleeve 14, and the lower end of intermediate pull rod 3 is fixedly connected with intermediate slide block 4 through pull rod locking nut 15.
[0019] The utility model discloses a working principle: the ring piece 16 is set into the bulging mould 9, and the electric control system sends the order, and the hydraulic system supplies the oil to the down pressure oil cylinder 5, and the down pressure oil cylinder 5 drives the intermediate sliding block 4, the intermediate pull rod 3, the bulging core cone 8 down, and the taper of the bulging core cone 8 is driven to the bulging inclined block 17, the bulging mould 9 moves along the diameter outward, and the ring piece 16 is forced to expand outward. When reaches the specified size, the electric control system sends the order, and the hydraulic system works and supplies the oil to the lifting oil cylinder 6, and it drives the intermediate sliding block 4 and the intermediate pull rod 3, the bulging core cone 8 up, and the hydraulic system supplies the oil to the reset oil cylinder 10 simultaneously, and it drives the bulging inclined block 17, the bulging mould 9 moves along the diameter inward, reaches the electric control specified position. The workstation 2 can be provided with the rotating roller for driving the ring piece 16 to rotate, and the rotating roller drives the ring piece 16 to rotate through the hydraulic drive, rotates to the specified angle, and the electric control system sends the order, and makes it stop rotating, then starts to repeat the above action until the bulging is completed, and its working process can be simply described as follows:
[0020] Place the ring piece→bulging→reset→rotate→bulging→reset→rotate……→end.
[0021] The above only is the specific implementation of the utility model of the illustrative mode, and is not used to limit the range of the utility model. Any person skilled in the art, under the premise of not departing from the concept and principle of the utility model, the equivalent change and modification made, should belong to the range of the utility model protection.
Claims
1. A multi-cylinder down-draw large ring expander machine comprising a fixed upper beam (1) and a worktable (2) fixed above the fixed upper beam (1), characterized in that: The center of the workbench (2) is vertically penetrated by a middle pull rod (3), the lower end of the middle pull rod (3) is fixedly connected with a middle sliding block (4) below the fixed upper beam (1), the upper surface of the middle sliding block (4) is fixedly connected with the fixed upper beam (1) through a lower pressing oil cylinder (5) on both sides, the lower surface of the middle sliding block (4) is fixedly connected with a fixed base (7) below the middle sliding block (4) through a lifting oil cylinder (6) on both sides, the upper end of the middle pull rod (3) is fixedly connected with an inverted conical bulging core cone (8), the periphery of the bottom of the bulging core cone (8) is sleeved with a plurality of uniformly arranged bulging inclined blocks (17), the periphery of the bulging inclined block (17) is sleeved with an expandable bulging die (9).
2. A multi-cylinder down-draw large ring expander machine as claimed in claim 1, characterized in that: The lower surface of the workbench (2) is provided with a plurality of reset oil cylinders (10) for driving the bulging inclined blocks (17) to expand, slide and reset.
3. A multi-cylinder down-draw large ring expander machine as claimed in claim 1, characterized in that: The workbench (2), the fixed upper beam (1) and the fixed base (7) are fixedly connected with different parts of the bottom surface of the shell through fixed feet (11) respectively.
4. A multi-cylinder down-draw large ring expander machine as claimed in claim 1, characterized in that: The part of the middle pull rod (3) penetrating the fixed upper beam (1) is sleeved with a pull rod guide sleeve (12).
5. A multi-cylinder down-draw large ring expander machine as claimed in claim 1, characterized in that: The middle sliding block (4) is vertically penetrated by a plurality of guide columns (13), the upper and lower ends of each guide column (13) are fixedly connected with the fixed upper beam (1) and the fixed base (7) respectively.
6. A multi-cylinder down-draw large ring expander machine as claimed in claim 5, characterized in that: The part of the guide column (13) penetrating the middle sliding block (4) is sleeved with a guide column guide sleeve (14) respectively.
7. A multi-cylinder down-draw large ring expander machine as claimed in claim 1, characterized in that: The lower end of the middle pull rod (3) is fixedly connected with the middle sliding block (4) through a pull rod locking nut (15).
8. A multi-cylinder down-draw large ring expander machine as claimed in claim 1, characterized in that: The diameter of the lower pressing oil cylinder (5) is greater than the diameter of the lifting oil cylinder (6).