Spiral vane press forming device and processing method thereof

Abstract

The present application relates to the field of spiral shaft manufacturing, and discloses a spiral blade press forming device and a processing method thereof, the blade press forming device comprising a base, a first vertical plate fixedly arranged on one end of the base, a sliding seat slidably arranged on the base, a second vertical plate fixedly arranged on the sliding seat and facing the first vertical plate, and a hydraulic drive mechanism for driving the sliding seat to move laterally to approach or move away from the first vertical plate; the first vertical plate is provided with a first press mold, and the second vertical plate is provided with a second press mold matched with the first press mold; lifting mechanisms are arranged on the two sides of the base respectively, and the first press mold and the second press mold each comprise a mounting panel and a mold body arranged on the mounting panel, the mold body is provided with a press curved surface, and the press curved surface gradually increases in press curving capacity from bottom to top. The blade press forming device satisfies the production and processing of spiral blades with large thickness, improves production efficiency, and eliminates the cost caused by the casting production mode.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of spiral shaft manufacturing, in particular to a spiral blade pressing forming device and a processing method thereof. BACKGROUND

[0002] The spiral shaft mainly conveys materials with large viscosity and compressibility through spiral blades, and simultaneously stirs and mixes the materials during the conveying process. The existing spiral shaft is large in size and the blade is spiral-shaped. The spiral blade is welded to the shaft body after being manufactured and formed, to form a spiral shaft. Due to the irregularity and complexity of the spiral blade in space shape, the existing spiral blade is mainly cast by a mold. However, if the enterprise adopts the casting method to produce the spiral blade, not only high cost is required to configure the casting equipment, but also a wide space is required to provide for the casting equipment. One casting mold needs to be configured for each type of spiral blade, and therefore, multiple casting molds need to be developed to meet the production requirements. The development cost of the mold is high, and the construction period is long.

[0003] The existing technology provides a method for manufacturing a spiral blade by cold stretching a fan-shaped steel plate, that is, clamping both ends of the fan-shaped steel plate, and then simultaneously stretching both ends of the fan-shaped steel plate in opposite directions, so that the fan-shaped steel plate is pressed and curved into a spiral blade. However, the spiral shape of the spiral blade obtained by this processing method is not very regular, and the spiral parameter size error is large. In addition, this processing method can only process fan-shaped steel plates with a relatively thin thickness (thickness of 3-15 mm). If the thickness of the fan-shaped steel plate is relatively thick (such as a thickness of 40 mm), the required stretching stress is extremely large, and the existing equipment cannot meet the processing of such blades.

[0004] It can be seen that the existing technology needs to be improved and enhanced. SUMMARY

[0005] In view of the above shortcomings of the prior art, the purpose of the present application is to provide a spiral blade pressing forming device and a processing method thereof, which can manufacture spiral blades with a large thickness, improve production efficiency, and eliminate the cost caused by the casting production method.

[0006] In order to achieve the above purpose, the present application adopts the following technical solutions:

[0007] The utility model provides a spiral blade press forming device, including the base, the first vertical board of fixed setting on the one end of base, the slide of fixed setting on the base, the second vertical board of fixed setting slide and to the first vertical board, and the hydraulic drive mechanism for driving slide transverse movement realizes the hydraulic drive mechanism of approaching or away from the first vertical board, first mould is provided on the first vertical board, second mould is provided on the second vertical board and is matched with first mould, the both sides of base are provided with lifting mechanism respectively, and two lifting mechanisms are used for common support and lift steel sheet to the set height, and the press bending forming station is formed between first mould and second mould, first mould and second mould all include mounting panel, the mould body of setting on mounting panel, be equipped with press bending curved surface on the mould body, and the press bending curved surface gradually increases from below to above, and the lead of blade can form gradually increases.

[0008] As a further improvement of the above technical solution, the mould body is in the shape of a "claw", and two lightening grooves are formed in the mould body.

[0009] As a further improvement of the above technical solution, the lifting mechanism comprises a transverse frame, an adjusting mechanism for adjusting the transverse position of the transverse frame, a lifting oil cylinder arranged on the transverse frame, the piston rod of the lifting oil cylinder extends upward, a receiving seat is arranged on the end of the piston rod, a rotatable supporting roller is arranged on the receiving seat, and the axis of the supporting roller extends in the transverse direction.

[0010] As a further improvement of the above technical solution, the adjusting mechanism comprises a lead screw, a guide rod, a front plate and a rear plate fixed to the side surface of the base, the guide rod extends in the front-rear direction and is fixed to the front plate and the rear plate at both ends, the lead screw extends in the front-rear direction and is rotatably connected to the front plate and the rear plate at both ends, a lead screw nut is sleeved on the lead screw, the lead screw nut is fixed to the transverse frame, and one end of the lead screw is connected to a driver.

[0011] As a further improvement of the above technical solution, the hydraulic drive mechanism comprises a pressing oil cylinder and a support frame arranged on the other end of the base, the cylinder body of the pressing oil cylinder is fixed to the support frame, and the end of the piston rod of the pressing oil cylinder is connected to the slide.

[0012] As a further improvement of the above technical solution, two sliding guide rods extending in the front-rear direction are arranged on the both sides of the base, and the bottom of the slide is slidably connected to the sliding guide rods through sliding blocks.

[0013] As a further improvement of the above technical solution, the slide comprises a bottom plate, two pressure distribution vertical plates arranged on the bottom plate, and a top plate arranged on the top of the two pressure distribution vertical plates, the two pressure distribution vertical plates and the top plate are connected to the back of the second vertical plate, and the two pressure distribution vertical plates are reinforcedly connected to the bottom plate through reinforcing ribs.

[0014] As a further improvement of the above technical solution, the top of the top plate is provided with a first control button, and the side of one of the pressure distribution vertical plates is provided with a second control button.

[0015] The application also provides a processing method of the spiral blade press forming device, comprising the following steps:

[0016] A. First, hoist the fan-shaped steel plate to the top of the first press mold;

[0017] B. Adjust the supporting height of the two lifting mechanisms, then place the steel plate into the press bending forming station and vertically place it on the two lifting mechanisms, so that the two lifting mechanisms jointly support the steel plate;

[0018] C. Rotate the steel plate so that one end of the steel plate is completely located in the press bending forming station;

[0019] D. The hydraulic drive mechanism drives the second press mold to approach the first press mold, so that the first press mold and the second press mold are pressed together, and the steel plate in the press bending forming station is press bent and formed;

[0020] E. The hydraulic drive mechanism drives the second press mold to move away from the first press mold, and then rotates the steel plate to turn a part of the press bent and formed steel plate out of the press bending forming station, and a part of the unpress bent and formed steel plate into the press bending forming station;

[0021] F. Repeat steps D and E until the entire steel plate is processed into a spiral blade.

[0022] The beneficial effects of the present application: the press bending forming device provided by the present application processes the steel plate in a segmented manner by pressing the first press mold and the second press mold together, which solves the problem of difficult cold processing caused by the large thickness of the spiral blade, requires less hydraulic driving force, has better press bending effect of the spiral blade, and has smaller springback of the spiral blade, meets the processing of spiral blades with large thickness, and the shape of the spiral blade is coherent and smooth, and the size parameters are more accurate. Compared with the prior art, the present application has the following advantages: 1. The high cost of configuring casting equipment and casting molds is saved, and the operation is simple and the production efficiency is high. 2. Spiral blades of the same processing specification can be processed in large quantities and continuously, and the processing efficiency is extremely high; when processing spiral blades of another processing specification, only the supporting height of the lifting mechanism needs to be adjusted to adjust the press bending spiral angle, which is simple to operate and can be applied to the processing of spiral blades of all different specifications. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 for the blade press bending forming device Figure 1 .

[0024] Figure 2 for the blade press bending forming device Figure 2 .

[0025] Figure 3 is a perspective view of the first pressing die.

[0026] Figure 4 is a structural schematic view of the fan-shaped steel plate.

[0027] Figure 5 is a structural schematic view of the fan-shaped steel plate after being pressed and curved into a spiral blade.

[0028] Main element symbol explanation: 1 - base, 10 - limiting frame, 21 - first vertical plate, 22 - second vertical plate, 3 - hydraulic drive mechanism, 31 - support frame, 32 - pressing oil cylinder, 41 - first pressing die, 411 - mounting panel, 412 - die main body, 413 - weight-reducing groove, 414 - pressing curved surface, 42 - second pressing die, 50 - scale, 5 - lifting mechanism, 51 - transverse moving frame, 521 - screw rod, 522 - guide rod, 523 - front plate, 524 - rear plate, 53 - lifting oil cylinder, 54 - receiving seat, 55 - supporting roller, 50 - pressing and curving forming station, 6 - sliding seat, 61 - bottom plate, 62 - pressure-dividing vertical plate, 63 - top plate, 64 - reinforcing rib, 71 - first control button, 72 - second control button, 81 - sliding guide rod, 82 - sliding block, 91 - steel plate, 92 - spiral blade. DETAILED DESCRIPTION

[0029] The present application provides a spiral blade pressing and forming device, in order to make the purpose, technical scheme and effect of the present application more clear and definite, the present application is further described in detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application, and are not used to limit the protection scope of the present application.

[0030] In this paper, "front" is the direction of the second pressing die 42 towards the first pressing die 41, "front" and "rear" are reversed, and the front and rear directions are the transverse directions.

[0031] Please refer to Figures 1-5The present application provides a spiral blade press forming device, which comprises a base 1, a first vertical plate 21 fixedly arranged on one end of the base 1, a sliding seat 6 slidingly arranged on the base 1, a second vertical plate 22 fixedly arranged on the sliding seat 6 and facing the first vertical plate 21, and a hydraulic drive mechanism 3 for driving the sliding seat 6 to move laterally to realize approaching or moving away from the first vertical plate 21; a first press mold 41 is arranged on the first vertical plate 21, and a second press mold 42 matched with the first press mold 41 is arranged on the second vertical plate 22; lifting mechanisms 5 are arranged on both sides of the base 1 respectively, and the two lifting mechanisms 5 are used for jointly supporting and lifting a steel plate to a set height; a press bending forming station 50 is formed between the first press mold 41 and the second press mold 42; the first press mold 41 and the second press mold 42 each comprise a mounting panel 411 and a mold body 412 arranged on the mounting panel 411, the mold body 412 is provided with a press bending surface 414, and the press bending capacity of the press bending surface 414 gradually increases from bottom to top, so that the lead of the spiral blade 92 gradually increases.

[0032] In practical applications, the helical blade 92 is made in two steps. The staff cuts the steel plate 91 into a sector in advance, and uses the elastic deformation characteristics of the steel plate 91 to process the helical blade by the helical blade pressing forming device provided by the application. The specific processing steps are as follows: first, hoist the sector-shaped steel plate 91 above the two lifting mechanisms 5; adjust the supporting height of the two lifting mechanisms 5 according to the outer diameter, inner diameter and final molding helical angle of the sector-shaped steel plate 91, then put the steel plate 91 into the bending forming station 50 and vertically place it on the two lifting mechanisms 5, so that the two lifting mechanisms 5 jointly support the steel plate 91. In order to ensure the bending forming effect and reduce the working load of the hydraulic drive mechanism 3, in fact, the first pressing die 41 and the second pressing die 42 can only process a part of the steel plate 91 locally each time, that is, different parts of the steel plate 91 need to be processed separately. Before processing, first rotate the steel plate 91 so that one end of the steel plate 91 is completely located in the bending forming station 50; then the hydraulic drive mechanism 3 drives the second pressing die 42 to approach the first pressing die 41, so that the first pressing die 41 and the second pressing die 42 are pressed together, and finally the steel plate 91 in the bending forming station 50 is bent into a helical shape; it should be noted that the first pressing die 41 and the second pressing die 42 can be appropriately retained for a period of time (such as 5s-10s) after being pressed together, so as to ensure that the helical blade 92 is formed in place and the material springback degree is reduced. Then the hydraulic drive mechanism 3 drives the second pressing die 42 away from the first pressing die 41 (i.e. the first pressing die 41 and the second pressing die 42 are separated), then rotate the steel plate 91 to turn out a part of the steel plate 91 which has been bent and formed from the bending forming station 50, so that a part of the steel plate 91 which has not been bent and formed is turned into the bending forming station 50, and the above bending step is repeated until all parts of the steel plate 91 are processed and formed. The staff takes out the blade to complete the processing and forming of the helical blade. Therefore, the same processing specification of the helical blade 92 can be processed in large quantities and continuously, and the processing efficiency is very high; when another processing specification of the helical blade 92 is processed, only the supporting height of the lifting mechanism 5 needs to be adjusted to adjust the bending helical angle, which is simple to operate and can be applied to the processing of all different specifications of the helical blade 92.

[0033] It needs to be understood that the pressing curved surface 414 provided by the first pressing die 41 and the second pressing die 42 is a curved surface with variable curvature, that is, the pressing ability of the pressing curved surface 414 gradually increases from bottom to top, and it can also be understood that the spiral angle of the spiral blade 92 obtained by pressing the steel plate 91 by using the upper region of the pressing curved surface 414 is greater than the spiral angle of the spiral blade 92 obtained by pressing the steel plate 91 by using the lower region of the pressing curved surface 414. The greater the spiral angle of the spiral blade 92, the greater the lead of the spiral blade 92. Because the degree of pressing is larger, the output force of the hydraulic driving mechanism 3 also needs to be larger, so the lifting mechanism 5 needs to be set to a suitable supporting height according to the parameters of the finally formed blade (such as the outer diameter, inner diameter, lead and thickness of the blade), and the hydraulic driving mechanism 3 needs to be set to a suitable output force. That is, different types of blades correspond to a better supporting height and hydraulic driving mechanism 3 output force during production. The specific values of the supporting height and the hydraulic driving mechanism 3 output force can be obtained in advance by a limited number of tests, so that the blade can be directly used in batch production.

[0034] Therefore, compared with the prior art production method of directly casting a spiral blade by a mold and the production method of stretching a spiral blade, the production method is completely different, saves the high cost of configuring casting equipment and manufacturing a casting mold, is simple to operate and has high production efficiency. In the development and trial production of a new spiral shaft, the size, material and spiral angle of the new specification spiral blade 92 may change, so that it is difficult to control the rebound degree of the steel plate 91 during pressing. That is, the staff can select a plurality of same steel plate 91 samples to perform pressing test by using the blade pressing forming device provided by the present application, and record the values of the supporting height and the hydraulic driving mechanism 3 output force in each pressing test, and then analyze the best test sample to obtain the values of the supporting height and the hydraulic driving mechanism 3 output force corresponding to the best test sample as the reference parameters for actual production in the future. Compared with the traditional mold development, the development cycle and the debugging cycle are greatly shortened, the cost of mold scrap and mold reconstruction is saved, and the development cost is extremely small.

[0035] Compared with the prior art production method of stretching a spiral blade, the pressing forming device provided by the present application processes the steel plate 91 in a segmented manner by pressing the first pressing die 41 and the second pressing die 42, solves the problem of difficult cold working caused by the large thickness of the spiral blade, requires smaller hydraulic driving force, has better pressing effect of the spiral blade 92, has smaller rebound of the spiral blade 92, has coherent and smooth shape of the spiral blade 92, and has more accurate size parameters.

[0036] Specifically, the first pressing die 41 comprises a mounting panel 411, a die body 412 arranged on the mounting panel 411, and a pressing curved surface 414 arranged on the die body 412, wherein the pressing curved surface 414 has a gradually increasing pressing curvature from bottom to top, so that the lead of the spiral blade 92 gradually increases.

[0037] Further, the die body 412 has a "claw" shape, so that when the lower part of the die body 412 is used to process the steel plate 91, the upper part of the die body 412 is located at the inner ring position of the steel plate 91, and does not interfere with the unprocessed part of the steel plate 91. In addition, two weight-reducing grooves 413 are arranged on the die body 412, so that two triangular structures are formed on the die body 412. Compared with the die body 412 without the weight-reducing grooves 413, the structure strength and load distribution of the weight-reduced die body 412 are more uniform, and the service life of the die body 412 is improved.

[0038] Specifically, the lifting mechanism 5 comprises a horizontal moving frame 51, an adjusting mechanism for adjusting the horizontal position of the horizontal moving frame 51, a lifting oil cylinder 53 arranged on the horizontal moving frame 51, wherein the piston rod of the lifting oil cylinder 53 extends upward, and a receiving seat 54 is arranged on the end of the piston rod, and a rotatable supporting roller 55 is arranged on the receiving seat 54, and the axis of the supporting roller 55 extends horizontally. By controlling the extension length of the piston rod of the lifting oil cylinder 53, the height of the supporting roller 55 can be adjusted, so that the contact position of the steel plate 91 and the pressing curved surface 414 can be adjusted.

[0039] Since the die body 412 has a "claw" shape, in order to stably support the steel plate 91 by the two lifting mechanisms 5 without interfering with the first pressing die 41 and the second pressing die 42, the lifting oil cylinder 53 is arranged obliquely, and the slope of the lifting oil cylinder 53 is the same as the slope of the side surface of the die body 412.

[0040] In the embodiment, a scale 50 is arranged on the side surface of the first vertical plate 21, so that the current height of the supporting roller 55 can be obtained according to the scale of the scale 50, and the data can be recorded by the worker during the test.

[0041] Further, the adjusting mechanism comprises a screw rod 521, a guide rod 522, a front plate 523 and a rear plate 524 fixed on the side of the base 1, the guide rod 522 extends along the front and back and its two ends are fixed on the front plate 523 and the rear plate 524 respectively, the screw rod 521 extends along the front and back and its two ends are rotatably connected with the front plate 523 and the rear plate 524 respectively, a screw rod nut is sleeved on the screw rod 521, the screw rod nut is fixedly connected with the transverse moving frame 51, and one end of the screw rod 521 is connected with a driver. When the screw rod 521 is driven to rotate through the driver, the transverse moving frame 51 can be driven to move transversely under the transmission of the screw rod nut and the guide rod 522, so that the position of the supporting roller 55 is adjusted, and it is ensured that the supporting roller 55 stably supports the steel plate 91.

[0042] The driver can be a hand wheel or a handle for manual adjustment.

[0043] Specifically, the hydraulic driving mechanism 3 comprises a pressing oil cylinder 32 and a support frame 31 arranged on the other end of the base 1, the cylinder body of the pressing oil cylinder 32 is fixed on the support frame 31, and the piston rod end of the pressing oil cylinder 32 is connected with the sliding seat 6. That is, the pressing oil cylinder 32 is arranged in suspension, the piston rod end of the pressing oil cylinder 32 is opposite to and drivingly connected with the center of the back of the second pressing die 42, and the output force of the pressing oil cylinder 32 is better converted into the pressure on the second pressing die 42.

[0044] Further, two sliding guide rods 81 extending along the front and back are arranged on the two sides of the base 1 respectively, the bottom of the sliding seat 6 is slidably connected with the sliding guide rods 81 through sliding blocks 82, one end of the sliding guide rod 81 is fixedly connected with the base 1 through a wing block, and the other end is fixedly connected with the first vertical plate 21, so that the sliding seat 6 slides stably and is reliable in use. In order to improve the transverse moving stability of the transverse moving frame 51, the sliding guide rod 81 is transversely arranged through the transverse moving frame 51 and connected with the transverse moving frame 51 through a thrust ball bearing.

[0045] Specifically, the sliding seat 6 comprises a bottom plate 61, two pressure distribution vertical plates 62 arranged on the bottom plate 61, and a top plate 63 arranged on the top of the two pressure distribution vertical plates 62, the two pressure distribution vertical plates 62 and the top plate 63 are connected with the back of the second vertical plate 22, and the two pressure distribution vertical plates 62 are reinforcedly connected with the bottom plate 61 through reinforcing ribs 64. In this way, the pressure distribution vertical plates 62, the top plate 63 and the reinforcing ribs 64 provide reliable support behind the second vertical plate 22, prevent the first vertical plate 21 from being deformed or inclined under stress, ensure that the second vertical plate 22 is always perpendicular to the bottom plate 61, and ensure the accuracy and matching of the pressing of the first pressing die 41 and the second pressing die 42.

[0046] Similarly, the back of the first vertical plate 21 is also fixedly connected with a limiting frame 10 connected with the base 1. The limiting frame 10 provides reliable support to the back of the first vertical plate 21, prevents the first vertical plate 21 from being deformed or inclined under force, ensures the verticality of the first vertical plate 21, and prevents the position of the first pressing die 41 from being changed.

[0047] The hydraulic drive mechanism 3 and the lifting mechanism 5 are respectively electrically connected with an electric control box. The electric control box comprises a box body, a PLC controller, an industrial control screen and related control circuits. The top of the top plate 63 is provided with a first control button 71, and the side surface of one of the pressure distribution vertical plates 62 is provided with a second control button 72. The first control button 71 and the second control button 72 are electrically connected. The second control button 72 is used for controlling the initial working position of the second pressing die 42 on the sliding seat 6. Specifically, when the forward button on the second control button 72 is pressed, the piston rod of the pressing oil cylinder 32 extends, and the sliding seat 6 and the second pressing die 42 advance. When the backward button on the second control button 72 is pressed, the piston rod of the pressing oil cylinder 32 retracts, and the sliding seat 6 and the second pressing die 42 retreat. When the second control button 72 is not triggered, the position of the sliding seat 6 and the second pressing die 42 is the initial working position. The length between the first pressing die 41 and the second pressing die 42 is appropriate, and does not interfere with the placement and rotation of the steel plate 91. When the first control button 71 is pressed, the piston rod of the pressing oil cylinder 32 continuously extends forward to provide pressure for the second pressing die 42. The first pressing die 41 and the second pressing die 42 jointly press the steel plate 91 into a spiral blade 92. When the first control button 71 is released, the piston rod of the pressing oil cylinder 32 automatically resets to the initial working position, waiting for the next bending operation. Through such a setting, not only can the operator operate conveniently and safely, but also the moving efficiency of the second pressing die 42 can be improved, and the processing time of the blade can be reduced.

[0048] The application further provides a processing method of the spiral blade pressing forming device.

[0049] A. The fan-shaped steel plate 91 is first hoisted to the upper side of the two lifting mechanisms 5;

[0050] B. The support height of the two lifting mechanisms 5 is adjusted, then the steel plate 91 is placed in the bending forming station 50 and vertically placed on the two lifting mechanisms 5, so that the two lifting mechanisms 5 jointly support the steel plate 91;

[0051] C. The steel plate 91 is rotated, so that one end of the steel plate 91 is completely located in the bending forming station 50;

[0052] D. The hydraulic drive mechanism 3 drives the second pressing die 42 to approach the first pressing die 41, so that the first pressing die 41 and the second pressing die 42 are pressed together to bend and form the steel plate 91 in the bending forming station 50;

[0053] E. The hydraulic drive mechanism 3 drives the second die 42 away from the first die 41, and then rotates the steel plate to turn a part of the press-formed steel plate 91 out of the press-forming station 50 and a part of the unpress-formed steel plate 91 into the press-forming station 50;

[0054] F. Repeat steps D and E until the entire steel plate 91 is processed into the spiral blade 92.

[0055] The press-forming of the steel plate is achieved by the reciprocating movement of the second die 42 relative to the first die 41 driven by the hydraulic drive mechanism 3, and the press-forming surface of the first die 41 and the second die 42 is moderate in size, forming a segmented local processing mode for the steel plate, solving the problem of difficult cold processing caused by the large thickness of the spiral blade 92, requiring less hydraulic drive force, achieving better press-forming effect of the spiral blade 92, and smaller springback of the spiral blade 92, meeting the processing requirements of the spiral blade 92 with large thickness, and the shape of the spiral blade 92 is coherent and smooth, and the size parameters are more accurate. In addition, according to the characteristics of the press-forming surface, the supporting height of the lifting mechanism 5 is reasonably adjusted to achieve the purpose of adjusting the press-forming spiral angle, which is simple to operate and can be applied to the processing of spiral blades 92 of all different specifications.

[0056] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0057] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection or can communicate with each other; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0058] It can be understood that for those skilled in the art, equivalent replacement or change can be made according to the technical solutions and inventive concepts of the present application, and all such changes or replacements shall fall within the protection scope of the present application.

Claims

1. A spiral blade pressing and forming device, characterized in that, The device includes a base, a first vertical plate fixedly mounted on one end of the base, a slide block slidably mounted on the base, a second vertical plate fixedly mounted on the slide block and facing the first vertical plate, and a hydraulic drive mechanism for driving the slide block to move laterally closer to or further away from the first vertical plate; a first pressing mold is provided on the first vertical plate, and a second pressing mold that cooperates with the first pressing mold is provided on the second vertical plate; lifting mechanisms are respectively provided on both sides of the base, and the two lifting mechanisms are used to jointly support and lift the steel plate to a set height; a bending forming station is formed between the first pressing mold and the second pressing mold; both the first pressing mold and the second pressing mold include a mounting panel and a mold body provided on the mounting panel, and the mold body is provided with a pressing curved surface, the bending capacity of the pressing curved surface gradually increases from bottom to top, so that the lead that the spiral blade can form gradually increases; The main body of the mold is claw-shaped, and two weight-reducing grooves are provided on the main body of the mold; The lifting mechanism includes a transverse frame, an adjustment mechanism for adjusting the lateral position of the transverse frame, and a lifting cylinder mounted on the transverse frame. The piston rod of the lifting cylinder extends upward and a receiving seat is provided at the end of the piston rod. A rotatable roller is provided on the receiving seat, and the axis of the roller extends laterally. The adjustment mechanism includes a lead screw, a guide rod, a front plate and a rear plate fixed to the side of the base. The guide rod extends forward and backward and its two ends are fixed to the front plate and the rear plate respectively. The lead screw extends forward and backward and its two ends are rotatably connected to the front plate and the rear plate respectively. A lead screw nut is fitted on the lead screw and the lead screw nut is fixed to the transverse frame. One end of the lead screw is connected to a driver.

2. The spiral blade pressing and forming device according to claim 1, characterized in that, The hydraulic drive mechanism includes a pressing cylinder and a support frame disposed at the other end of the base. The cylinder body of the pressing cylinder is fixed on the support frame, and the piston rod end of the pressing cylinder is connected to the slide.

3. The spiral blade pressing and forming device according to claim 1, characterized in that, Two sliding guide rods extending in the front-to-back direction are respectively provided on both sides of the base, and the bottom of the slide block is slidably connected to the sliding guide rods through a slider.

4. The spiral blade pressing and forming device according to claim 1, characterized in that, The slide includes a base plate, two pressure-dividing vertical plates disposed on the base plate, and a top plate disposed on top of the two pressure-dividing vertical plates. The two pressure-dividing vertical plates and the top plate are all connected to the back of the second vertical plate. The two pressure-dividing vertical plates are reinforcedly connected to the base plate by reinforcing ribs.

5. The spiral blade pressing and forming device according to claim 4, characterized in that, The top of the top plate is provided with a first control button, and one of the pressure-distributing vertical plates is provided with a second control button on its side.

6. The processing method of the spiral blade pressing and forming device as described in claim 1, characterized in that, Includes the following steps: A. First, hoist the fan-shaped steel plate above the first pressing mold; B. Adjust the support height of the two lifting mechanisms, then place the steel plate into the pressing and forming station and place it vertically on the two lifting mechanisms so that the two lifting mechanisms jointly support the steel plate; C. Rotate the steel plate so that one end of the steel plate is completely within the bending forming station; D. The hydraulic drive mechanism drives the second die to approach the first die, causing the first die and the second die to press together, thus bending the steel plate in the bending forming station into shape. E. The hydraulic drive mechanism drives the second die away from the first die, and then rotates the steel plate to move a portion of the already bent steel plate out of the bending and forming station, and move a portion of the unbent steel plate into the bending and forming station. F. Repeat steps D and E until the entire steel plate is machined into a helical blade.

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