A water pump blade bending forming die

Abstract

The present invention relates to the technical field of cold pressing molds, and the present invention discloses a water pump blade bending forming mold, including a workbench, a lower positioning plate, an upper positioning plate, a lower cold pressing shaping block, an upper cold pressing shaping block and a positioning assisting capsule, wherein the lower positioning plate is fixedly arranged on the workbench, the upper positioning plate is located directly above the lower positioning plate, the top end of the lower positioning plate and the bottom end of the upper positioning plate are both provided with a slide groove, a long slider is provided in the slide groove for sliding engagement, the lower cold pressing shaping block is fixedly arranged on the long slider in contact with the lower positioning plate, the upper cold pressing shaping block is fixedly arranged on the long slider in contact with the upper positioning plate, and the positioning assisting capsule is fixedly arranged on the lower positioning plate. The present invention specifically provides a water pump blade bending forming mold including a shaping assisting capsule and a demoulding assisting capsule.

Description

Technical Field

[0001] The invention relates to the technical field of cold pressing molds, in particular to a water pump blade bending forming mold. Background Art

[0002] A patent application with application number CN202122361313.8 discloses a spiral blade cold stamping forming mold, and specifically discloses the technical solution of "using 3D software to establish a 3D solid model of the spiral blade during use, and at the same time using 3D software to unfold the spiral blade, and then formulate a suitable adjustment block, install the adjustment block in the corresponding fixed groove, plug in the pin to fix it, and then install the fixed plate on the press through the fixed hole, place the spiral blade plate on the lower mold adjustment block, and stamp it into shape."

[0003] While the technical solution in this application offers the ability to flexibly adjust the cold-pressed shape, the blades are only partially subjected to the extrusion force from the upper and lower mold adjustment blocks during the cold-pressing process. This results in excessively concentrated load during the cold-pressing process, hindering the quality of the finished product. Furthermore, the upper and lower sides of the cold-pressed blades fit tightly against the upper and lower mold adjustment blocks, respectively, making demolding difficult. Summary of the Invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a water pump blade bending forming mold. In order to solve the problem of excessive concentration of cold pressing load and inconvenience of demolding of blades in the prior art, the present invention proposes a water pump blade bending forming mold comprising a shaping assisting capsule and a demolding assisting capsule.

[0005] The technical solution adopted by the present invention is as follows: A water pump blade bending forming mold, including a workbench, a lower positioning plate, an upper positioning plate, a lower cold pressing shaping block, an upper cold pressing shaping block and a shaping assisting capsule, the lower positioning plate is fixed on the workbench, the upper positioning plate is located directly above the lower positioning plate, the top end of the lower positioning plate and the bottom end of the upper positioning plate are both provided with a sliding groove, a long slider is provided for sliding engagement in the sliding groove, the lower cold pressing shaping block is fixed on the long slider in contact with the lower positioning plate, the upper cold pressing shaping block is fixed on the long slider in contact with the upper positioning plate, and the shaping assisting capsule is fixed on the lower positioning plate.

[0006] Furthermore, the top end of the lower positioning plate and the bottom end of the upper positioning plate are each provided with multiple groups of slide grooves, the long sliders are provided with multiple groups, and the multiple groups of long sliders are slidably engaged in the multiple groups of slide grooves in a one-to-one manner. The lower cold-pressed shaping blocks and the upper cold-pressed shaping blocks are both provided with multiple groups, and the multiple groups of lower cold-pressed shaping blocks are fixed one-to-one on the multiple groups of long sliders in contact with the lower positioning plate, and the multiple groups of upper cold-pressed shaping blocks are fixed one-to-one on the multiple groups of long sliders in contact with the upper positioning plate. The left and right sides of the shaping assisting capsule are respectively fitted and connected with a group of lower cold-pressed shaping blocks, and the shaping assisting capsule is filled with electrorheological fluid. Two parallel plate capacitors are symmetrically fixed on the left and right sides of the workbench.

[0007] Furthermore, a demoulding assisting sac is fixedly provided on the top of the shaping assisting sac, a connecting bend is fixedly provided below the shaping assisting sac, the connecting bend is connected to the bottom of the shaping assisting sac, the connecting bend is connected to the lower positioning plate, a boosting box is fixed on the workbench, the boosting box is connected to the connecting bend, a piston plate is slidingly provided in the boosting box, a piston rod is fixed on the piston plate, and magnetic fluid is filled between the boosting box, the connecting bend and the demoulding assisting sac.

[0008] Furthermore, a vibrator is fixedly provided under the upper positioning plate, an elastic rope is fixedly provided at the bottom end of the vibrator, an electromagnet is fixedly provided at the bottom end of the elastic rope, and the magnetic fluid and the demoulding assisting capsule form a demoulding assisting protrusion cone under the action of the magnetic field force of the electromagnet.

[0009] Furthermore, the shaping assisting capsule, demoulding assisting capsule, connecting elbow, vibrator, elastic rope and electromagnet are provided in multiple groups.

[0010] Furthermore, a return spring is fixedly provided between the piston rod and the boost box.

[0011] Furthermore, a plurality of guide columns are fixedly provided on the workbench, wherein the guide columns are fixedly connected to the lower positioning plate, and the guide columns are slidably connected to the upper positioning plate.

[0012] The beneficial effects achieved by the present invention using the above structure are as follows:

[0013] 1. The present invention can adapt to the cold bending forming requirements of blades with different shapes by using the shaping assist capsule, electrorheological fluid and parallel plate capacitor in combination, and can provide a larger support area to avoid the problem of excessive load concentration during cold pressing.

[0014] 2. The present invention utilizes a demolding assist bladder, connecting elbow, booster box, piston plate, piston rod, actuator, elastic cord, and electromagnet in conjunction to maintain a flat surface during cold press molding, thus preventing degradation of the finished product quality. During demolding, the demolding assist bladder swells, and the magnetic field of the electromagnet creates a demolding assist protrusion, facilitating demolding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of a water pump blade bending forming mold of the present invention.

[0016] Figure 2 It is a schematic front view of a water pump blade bending forming die of the present invention.

[0017] Figure 3 The figure is a cross-sectional schematic diagram of a water pump blade bending forming die in the AA direction according to the present invention.

[0018] Figure 4 The present invention is a schematic diagram of a front cross-section of a water pump blade bending forming die.

[0019] Figure 5 It is a three-dimensional schematic diagram of the upper positioning plate and the slide groove of the present invention.

[0020] Figure 6 It is a three-dimensional schematic diagram of the lower cold-pressed shaping block, the shaping assisting capsule and the demoulding assisting capsule of the present invention.

[0021] Figure 7 It is a three-dimensional schematic diagram of the demoulding assisting capsule and the demoulding assisting protruding cone of the present invention.

[0022] Figure 8 It is a three-dimensional schematic diagram of the connecting elbow, booster box, piston rod and return spring of the present invention.

[0023] Among them, 1. workbench, 2. guide column, 3. lower positioning plate, 4. upper positioning plate, 5. slide groove, 6. long slider, 7. lower cold pressing shaping block, 8. upper cold pressing shaping block, 9. shaping assist capsule, 10. parallel plate capacitor, 11. demoulding assist capsule, 12. demoulding assist raised cone, 13. connecting elbow, 14. booster box, 15. piston plate, 16. piston rod, 17. return spring, 18. oscillator, 19. elastic rope, 20. electromagnet.

[0024] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0027] like Figures 1 to 8 As shown, a water pump blade bending forming mold includes a workbench 1, a lower positioning plate 3, an upper positioning plate 4, a lower cold-pressed shaping block 7, an upper cold-pressed shaping block 8 and a shaping assisting capsule 9. The lower positioning plate 3 is fixed on the workbench 1, and the upper positioning plate 4 is located directly above the lower positioning plate 3. A slide groove 5 is provided at the top end of the lower positioning plate 3 and the bottom end of the upper positioning plate 4. A long slider 6 is provided in the slide groove 5 for sliding engagement. The lower cold-pressed shaping block 7 is fixed on the long slider 6 in contact with the lower positioning plate 3, and the upper cold-pressed shaping block 8 is fixed on the long slider 6 in contact with the upper positioning plate 4. The shaping assisting capsule 9 is fixed on the lower positioning plate 3.

[0028] like Figures 1 to 8 As shown, the top of the lower positioning plate 3 and the bottom of the upper positioning plate 4 are provided with multiple groups of slide grooves 5, and there are multiple groups of long sliders 6. The multiple groups of long sliders 6 are one-to-one slidably engaged in the multiple groups of slide grooves 5. There are multiple groups of lower cold-pressed shaping blocks 7 and upper cold-pressed shaping blocks 8. The multiple groups of lower cold-pressed shaping blocks 7 are fixed one-to-one on the multiple groups of long sliders 6 in contact with the lower positioning plate 3, and the multiple groups of upper cold-pressed shaping blocks 8 are fixed one-to-one on the multiple groups of long sliders 6 in contact with the upper positioning plate 4. The left and right sides of the shaping assisting capsule 9 are respectively fitted and connected with a group of lower cold-pressed shaping blocks 7. The shaping assisting capsule 9 is filled with electrorheological fluid, and two parallel plate capacitors 10 are fixed symmetrically on the left and right sides of the workbench 1.

[0029] like Figures 1 to 8As shown, a demoulding assisting sac 11 is fixedly provided through the top of the shaping assisting sac 9, a connecting bend 13 is fixedly provided below the demoulding assisting sac 11, the connecting bend 13 is connected through the bottom of the shaping assisting sac 9, the connecting bend 13 is connected through the lower positioning plate 3, a boosting box 14 is fixedly provided on the workbench 1, the boosting box 14 is connected through the connecting bend 13, a piston plate 15 is slidingly provided in the boosting box 14, a piston rod 16 is fixed on the piston plate 15, and magnetic fluid is filled between the boosting box 14, the connecting bend 13 and the demoulding assisting sac 11.

[0030] like Figures 1 to 8 As shown, a vibrator 18 is fixedly provided under the upper positioning plate 4, an elastic rope 19 is fixedly provided at the bottom end of the vibrator 18, and an electromagnet 20 is fixedly provided at the bottom end of the elastic rope 19. The magnetic fluid and the demolding assisting capsule 11 form a demolding assisting protrusion cone 12 under the action of the magnetic field force of the electromagnet 20.

[0031] like Figures 1 to 8 As shown, the shaping assisting capsule 9, the demoulding assisting capsule 11, the connecting elbow 13, the vibrator 18, the elastic rope 19 and the electromagnet 20 are all provided in multiple groups.

[0032] like Figures 1 to 8 As shown, a return spring 17 is fixed between the piston rod 16 and the boost box 14 .

[0033] like Figures 1 to 8 As shown, a plurality of guide columns 2 are fixedly provided on the workbench 1 , the guide columns 2 are fixedly connected to the lower positioning plate 3 , and the guide columns 2 are slidably connected to the upper positioning plate 4 .

[0034] During specific use, the sliding engagement connection between the slide groove 5 and the long slider 6 enables the lower cold-pressing shaping block 7 and the upper cold-pressing shaping block 8 between the upper positioning plate 4 and the lower positioning plate 3 to be replaced to accommodate cold-bending processing of blades with different shapes. Before cold-bending processing, a finished blade is placed on the lower cold-pressing shaping block 7. The finished blade will squeeze the shaping assisting capsule 9 so that the outer surface of the shaping assisting capsule 9 conforms to the shape of the blade to be formed. Subsequently, the parallel plate capacitor 10 is energized, and an electric field is formed between the two parallel plate capacitors 10, causing the shaping assisting capsule 9 filled with electrorheological fluid to solidify, thereby playing a supporting role in the subsequent cold-pressing forming process, and avoiding excessive load concentration during the blade pressure processing.

[0035] After the blades are cold-pressed, the parallel plate capacitor 10 loses power, and the electrorheological fluid in the shaping assist capsule 9 returns to its liquid state. Simultaneously, the electromagnet 20 and the oscillator 18 are activated. Because magnetic fluid always points in the direction of greater magnetic field intensity, the electromagnet 20 has an attractive effect on the magnetic fluid in the demolding assist capsule 11. Furthermore, magnetic fluid has the property of forming a conical protrusion on its surface under the action of a magnetic field. Therefore, under the magnetic field force of the electromagnet 20, a demolding assisting protrusion cone 12 is formed on the surface of the demolding assist capsule 11. The oscillator 18 drives the electromagnet 20 to swing via the elastic rope 19, so that at any fixed spatial position, the magnetic field intensity emitted by the electromagnet 20 continuously changes. The demolding assist capsule 11 and the demolding assisting protrusion cone 12 below, which are filled with magnetic fluid, continuously swing in response to the changes in magnetic field intensity, thereby assisting demolding.

[0036] The above are only preferred specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A water pump blade bending forming die, characterized in that: The invention comprises a workbench (1), a lower positioning plate (3), an upper positioning plate (4), a lower cold-pressing shaping block (7), an upper cold-pressing shaping block (8) and a shaping assisting capsule (9), wherein the lower positioning plate (3) is fixedly arranged on the workbench (1), the upper positioning plate (4) is located directly above the lower positioning plate (3), a slide groove (5) is provided at the top end of the lower positioning plate (3) and the bottom end of the upper positioning plate (4), a long slider (6) is slidably engaged in the slide groove (5), the lower cold-pressing shaping block (7) is fixedly arranged on the long slider (6) in contact with the lower positioning plate (3), the upper cold-pressing shaping block (8) is fixedly arranged on the long slider (6) in contact with the upper positioning plate (4), and the shaping assisting capsule (9) is fixedly arranged on the lower positioning plate (3); The top end of the lower positioning plate (3) and the bottom end of the upper positioning plate (4) are both provided with a plurality of slide grooves (5), the long sliders (6) are provided with a plurality of groups, and the plurality of groups of the long sliders (6) are one-to-one slidably engaged in the plurality of slide grooves (5), the lower cold-pressed shaping blocks (7) and the upper cold-pressed shaping blocks (8) are both provided with a plurality of groups, the plurality of groups of the lower cold-pressed shaping blocks (7) are one-to-one fixedly arranged on the plurality of long sliders (6) in contact with the lower positioning plate (3), and the plurality of groups of the upper cold-pressed shaping blocks (8) are one-to-one fixedly arranged on the plurality of long sliders (6) in contact with the upper positioning plate (4), the left and right sides of the shaping assisting capsule (9) are respectively fitted and connected with a group of the lower cold-pressed shaping blocks (7), the shaping assisting capsule (9) is filled with an electrorheological fluid, and two parallel plate capacitors (10) are symmetrically fixedly arranged on the left and right sides of the workbench (1); A demoulding assisting sac (11) is fixedly provided through the top of the shaping assisting sac (9), a connecting bend (13) is fixedly provided below the shaping assisting sac (11), the connecting bend (13) is connected through the bottom of the shaping assisting sac (9), the connecting bend (13) is connected through the lower positioning plate (3), a boosting box (14) is fixedly provided on the workbench (1), the boosting box (14) is connected through the connecting bend (13), a piston plate (15) is slidably provided in the boosting box (14), a piston rod (16) is fixedly provided on the piston plate (15), and a magnetic fluid is filled between the boosting box (14), the connecting bend (13) and the demoulding assisting sac (11); A vibrator (18) is fixedly provided below the upper positioning plate (4), an elastic rope (19) is fixedly provided at the bottom end of the vibrator (18), an electromagnet (20) is fixedly provided at the bottom end of the elastic rope (19), and the magnetic fluid and the demoulding assisting capsule (11) form a demoulding assisting protruding cone (12) under the action of the magnetic field force of the electromagnet (20).

2. A water pump blade bending forming die according to claim 1, characterized in that: The shaping assisting capsule (9), the demoulding assisting capsule (11), the connecting curved pipe (13), the vibrator (18), the elastic rope (19) and the electromagnet (20) are all provided in multiple groups.

3. A water pump blade bending forming die according to claim 2, characterized in that: A return spring (17) is fixedly provided between the piston rod (16) and the booster box (14).

4. A water pump blade bending forming die according to claim 3, characterized in that: A plurality of groups of guide columns (2) are fixedly provided on the workbench (1); the guide columns (2) are fixedly connected to the lower positioning plate (3); and the guide columns (2) are slidably connected to the upper positioning plate (4).

Images