CN118122849B - Fan blade section bar torsion angle equipment - Google Patents

Abstract

The invention relates to the technical field of fan blade forming, in particular to fan blade profile torsion equipment which comprises a base, wherein a support frame which is symmetrical in front and back is arranged on the upper end face of the base, a loading platform is arranged on the upper end face of the base, and a side clamping mechanism for fixing the right end of a fan blade profile is arranged between the support frames. This fan blade section bar torsion angle equipment uses through the mutual cooperation of feed mechanism, limit clamp mechanism, torsion mechanism and the stress eliminating mechanism that set up, has realized automatic feeding to fan blade section bar, dual spacing is fixed, accurate torsion angle and effectual stress relief, carries out multiple spot elastic support through the terminal surface under the torsion angle in-process to the section bar to combine heating and slight vibrations, guarantee that the blade section bar atress is even when processing, avoided inhomogeneous deformation and local stress concentration, promoted the stability of production process and the uniformity of product, and guaranteed that the blade handles unanimously through the operation in batches, finally promoted axial fan's wholeness ability.

Description

Fan blade section bar torsion angle equipment

Technical Field

The invention relates to the technical field of fan blade forming, in particular to fan blade profile torsion angle equipment.

Background

An axial flow fan is common airflow conveying equipment and mainly comprises an impeller, a driving device, a flow guiding device and other components. When the fan is started, the impeller rotates to enable air to generate air flow along the direction of the axis of the driving shaft through the fan to realize functions such as ventilation, the axial flow fan is mainly used in the fields such as large ventilation systems and air transmission, the torsion angle of the impeller blade of the axial flow fan refers to the deflection angle of the blade relative to the axis of the impeller, in order to ensure that the torsion angle of the blade can optimize the inlet and outlet speed distribution of the air flow, the efficiency of the fan is improved, therefore, the blade needs to be subjected to torsion angle adjustment during the production of the impeller, the air flow guiding and rotating characteristics of the axial flow fan can be improved, and the performance of the axial flow fan is improved.

However, the following disadvantages exist when the fan blade profile is twisted at present: 1. when the fan blades are twisted, the operations such as fixing and positioning of the fan blade profile and the like are required to be manually completed, so that the production time and cost are increased, the production efficiency is lower, the fan blades are twisted one by one during production, the consistency and accuracy of the processing of a plurality of fan blades are easy to be reduced due to the manual operation, and the higher force than the expected load is born by certain blades due to the deviation of the twisting angles of the blades, so that the load of a fan motor is increased, the power consumption is increased, and the service life of the fan is shortened; 2. when torsion angle processing is performed, shear stress can appear in the fan blade section bar, and stress can concentrate in the region that fan blade section bar warp, leads to this position to have higher local stress, distributes under inhomogeneous or concentrated stress effect, and the blade easily appears structural fatigue and leads to formation and the extension of microcrack, finally influences the structural integrity and the performance of blade to influence the wholeness performance of loading this blade axial fan.

Therefore, in order to ensure that the blade with the adjusted torsion angle can improve the airflow guiding and rotating characteristics of the axial flow fan and improve the performance of the axial flow fan, the invention provides the fan blade profile torsion angle equipment.

Disclosure of Invention

In order to solve the technical problems, the invention provides fan blade section bar torsion angle equipment, which is achieved by the following specific technical means: the fan blade section bar torsion angle equipment comprises a base, wherein the upper end face of the base is provided with support frames which are symmetrical front and back, the upper end face of the base is provided with a loading platform, a side clamping mechanism for fixing the right end of the fan blade section bar is arranged between the support frames, and a feeding mechanism for matching with the side clamping mechanism to realize automatic alignment feeding is also arranged between the support frames; the side clamping mechanism comprises a matching part arranged on one of the supporting frames, a first fixing part is arranged on the matching part, and a second fixing part for implementing secondary limiting on the fan blade section bar fixed by the first fixing part is arranged on the first fixing part.

The base is provided with a torsion mechanism for uniformly implementing torsion angles on the fan blade profiles by matching with the edge clamping mechanism; the torsion mechanism comprises a torsion corner part which is arranged on the base and used for twisting the fan blade section bar, and a clamping part which is used for double fixing of the left end of the fan blade section bar is arranged on the torsion corner part.

The loading platform is provided with a stress eliminating mechanism for implementing multipoint elastic pressing and heating on the fan blade profile in the twisting process; the stress eliminating mechanism comprises a pressing part arranged on the loading platform, and a vibration part for eliminating torsional stress of the fan blade profile through vibration is arranged on the pressing part.

As a preferable technical scheme of the invention, the feeding mechanism comprises a supporting plate frame, a pushing slide block, a connecting straight plate, an L-shaped pressing plate and a rotating shaft frame, wherein the supporting plate frame is fixedly installed at the left end of the supporting plate frame, a plurality of slide ways penetrating through the right end face of the supporting plate frame are arranged on the upper end face of the supporting plate frame in a linear array mode, the pushing slide block is slidably installed in the slide ways, an arc supporting block for pushing fan blade sections is integrally formed at the upper end of the pushing slide block, the connecting straight plate is fixedly installed at the lower end of the pushing slide block, the right end of the connecting straight plate is hinged with the L-shaped pressing plate, the rotating shaft frame positioned at the rightmost end of the slide ways is fixedly installed at the lower end face of the supporting plate frame, a folding point of the L-shaped pressing plate is hinged with the rotating shaft frame, and a triangular plate is arranged at the right end of the L-shaped pressing plate.

As a preferable technical scheme of the invention, the matching part comprises a bearing square shaft, a first electric push rod, an equipment bin, a grooved pulley deflector rod and a first motor, wherein the bearing square shaft is arranged between the supporting frames through bearings, the first electric push rod is fixedly arranged on the supporting frame at the front side, a limiting hole corresponding to the telescopic end of the first electric push rod is formed in the bearing square shaft, the equipment bin is fixedly arranged on the supporting frame at the rear side, a rotating shaft penetrating through the equipment bin is arranged on the bearing square shaft, the grooved pulley is fixedly sleeved on the rotating shaft in the equipment bin, the first motor is fixedly arranged in the equipment bin, and the grooved pulley deflector rod in matched transmission connection with the grooved pulley is fixedly sleeved at the output end of the first motor.

As a preferable technical scheme of the invention, the first fixing part comprises a first clamping bin, a first clamping plate, a first bidirectional screw, a transmission shaft and a second motor, wherein the first clamping bin corresponding to the pushing sliding blocks one by one is fixedly arranged on the bearing square shaft, the first clamping plate which is vertically symmetrical is slidably arranged at the right end of the first clamping bin through a limiting slideway which is arranged, the first bidirectional screw penetrating through the upper end surface of the first clamping bin is arranged in the first clamping bin through an inner bearing, the first bidirectional screw is in threaded connection with the first clamping plate, the upper end of the first bidirectional screw is provided with a first bevel gear, the upper end surface of the first clamping bin is connected with the transmission shaft together through a supporting block and a bearing which are arranged, a second bevel gear meshed and connected with the first bevel gear is arranged on the transmission shaft, and the second motor fixedly connected with the transmission shaft is fixedly arranged on the first clamping bin at the rear side.

As a preferable technical scheme of the invention, the secondary fixing part comprises an elliptic bin, bolts and a third motor, wherein the elliptic bin is fixedly arranged on the upper end face of the first clamping plate on the upper side, the bolts which penetrate through the lower end face of the first clamping plate on the upper side and are bilaterally symmetrical are connected and arranged on the first clamping plate on the upper side through bearings, screw holes corresponding to the bolts are formed in the first clamping plate on the lower side, belt pulleys positioned in the elliptic bin are fixedly sleeved on the bolts, the belt pulleys are connected through a belt transmission, and the third motor with an output end fixedly connected with one of the bolts is fixedly arranged on the elliptic bin.

As a preferable technical scheme of the invention, the torsion corner comprises a supporting vertical plate, a turntable, connecting gears, racks and a first air cylinder, wherein the supporting vertical plate positioned on the right side of a loading platform is fixedly arranged on the upper end face of the base, the turntable which corresponds to the first clamping bins one by one is arranged on the left end face of the supporting vertical plate through a bearing, the turntable penetrates through the right end face of the supporting vertical plate, the connecting gears are fixedly sleeved on the right end of the turntable, the connecting gears are connected with the supporting vertical plate through the bearing, the racks which are simultaneously meshed and connected with the connecting gears are slidably arranged on the right end face of the supporting vertical plate, and the first air cylinder which is fixedly connected with the racks is fixedly arranged on the supporting vertical plate through a telescopic end.

As a preferable technical scheme of the invention, the clamping part comprises a second clamping bin, a second clamping plate, a second bidirectional screw and a fourth motor, wherein the second clamping bin is fixedly arranged on the left end face of the turntable, the second clamping plate which is vertically symmetrical is slidably arranged on the left end face of the second clamping bin through a limiting slideway, the second bidirectional screw which is in threaded connection with the second clamping plate is arranged in the second clamping bin through a bearing, and the fourth motor of which the output end is fixedly connected with the second bidirectional screw is fixedly arranged on the second clamping bin.

As a preferable technical scheme of the invention, a guiding profiled bar is arranged on the first clamping plate at the upper side, a slot corresponding to the guiding profiled bar is arranged on the first clamping plate at the lower side, the guiding profiled bar is matched with the slot to limit the fan blade profile, a plurality of limiting vertical bars are arranged on the second clamping plate at the upper side in an array manner, jacks corresponding to the limiting vertical bars one by one are arranged on the second clamping plate at the lower side, a plurality of rubber rings for increasing friction force between the limiting vertical bars and the corresponding jacks are arranged on the limiting vertical bars in a linear array manner, and jacks corresponding to the limiting vertical bars are arranged on the second clamping plate at the lower side.

As a preferable technical scheme of the invention, the pressing part comprises a supporting platform, a sliding rail, a second electric push rod, a second air cylinder and an electric heating rod, wherein the loading platform consists of a sliding plate and a carrying plate above the sliding plate, the sliding plate and the carrying plate are fixedly connected through guide rods which are distributed in a rectangular shape, the base is provided with the sliding rail which is in sliding connection with the sliding plate, the front end of the sliding rail is fixedly provided with the second electric push rod which is fixedly connected with the sliding plate through a telescopic end, the sliding plate is fixedly provided with the second air cylinder which is fixedly connected with the carrying plate through the telescopic end, the carrying plate is fixedly provided with supporting platforms which are in one-to-one correspondence with the turntable through a triangular bracket, the carrying plate is fixedly provided with inclined surface sliding ways which are distributed in a staggered manner with the supporting platform, the supporting platform is provided with a plurality of electric heating rods which are distributed in a matrix and penetrate through the lower end face of the supporting platform in a sliding manner, and the electric heating rod is fixedly connected with the supporting platform through a spring which is arranged.

As a preferable technical scheme of the invention, the vibration part comprises a fifth motor, cams and a contact rod, wherein the fifth motor is fixedly arranged on one of the triangular brackets at the lower end of the supporting platform, the cams are fixedly sleeved at the output end of the fifth motor, the contact rod which is in contact with the cams is fixedly arranged on the supporting platform, and the outer surface of the contact rod is coated with a rubber layer.

Compared with the prior art, the invention has the following beneficial effects: 1. this fan blade section bar torsion angle equipment uses through the mutual cooperation of feed mechanism, limit clamp mechanism, torsion mechanism and the mechanism that disappears that sets up, realized automatic feeding to fan blade section bar, dual spacing is fixed, accurate torsion angle and effectual stress relief, through carrying out multiple spot elastic support to section bar lower extreme face at torsion angle in-process, and combine heating and slight vibrations, the atress of blade section bar when processing is even, uneven deformation and local stress concentration have been avoided, still the plastic deformation ability of material has been strengthened, thereby machining precision and surface quality have been improved when reducing internal stress, in addition, automated operation has reduced artifical reloading latency, machining speed and production efficiency have been improved, repeatability and reliability of course of working have been guaranteed simultaneously, the stability of production process and the uniformity of product have been promoted, and the blade is handled consistently through the operation of batches has been ensured, finally the wholeness of axial fan has been promoted.

2. This fan blade section bar torsion angle equipment uses through the mutual cooperation of limit clamp mechanism and feed mechanism that sets up, only needs the manual work to place the fan blade section bar that waits to process in relevant position, the follow-up operation of loading, centre gripping is fixed and unloading can be carried out to a plurality of fan blade section bars automatically, the latency of middle reloading has been reduced, thereby through increasing production automation, show improvement process speed and production efficiency, and automation equipment's repeatability and reliability are higher than manual operation, help guaranteeing the stability of production process and improve the uniformity of product, and can adapt to the fan blade section bar processing demand of different specifications fast, the adaptability of increase equipment.

3. This fan blade section bar torsion angle equipment uses through the mutual cooperation of limit clamp mechanism and the torsion mechanism that sets up, it is all fixed to carry out dual spacing to the both ends of fan blade section bar before carrying out the torsion angle, avoid fan blade section bar because of the unstable processing error that takes place the position deviation and lead to in follow-up processing of centre gripping, thereby improve the precision and the uniformity of torsion angle processing, and unified torsion angle is carried out to a plurality of fan blade section bars simultaneously, shorten single processing cycle through batch operation, further production efficiency has been promoted, synchronous and unified torsion angle's mode that adopts simultaneously, can ensure that every blade accepts the torsion treatment of the same degree, improve fan blade torsion angle's uniformity, and then guarantee that the blade provides more outstanding air current direction and rotation characteristic for the fan, improve axial fan's performance.

4. This fan blade section bar torsion angle equipment uses through the stress eliminating mechanism that sets up, at torsion angle in-process, heats its compliance and plasticity to the fan blade section bar is inside to this stress of fan blade section bar when reducing torsion angle improves the wholeness ability of fan, and carries out slight vibrations to the fan blade section bar, reduces its internal stress again when the fan blade section bar carries out plastic deformation, improves the stability and the durability of fan blade after the production.

5. This fan blade section bar torsion angle equipment uses through the cooperation of the mechanism that disappears that sets up, limit clamp mechanism and torsion mechanism, carries out multiple spot elastic support to the lower terminal surface of section bar when the torsion angle to it is more even to stress when the torsion angle with heating cooperation makes the blade, avoids because support uneven and lead to local stress concentration and produce the surface damage that uneven deformation arouses, and is more easily plastic deformation under the effect of being heated and vibrations, the blade material can accomplish torsion angle processing in the less time under the combined action of heating and vibrations reinforcing, has improved production efficiency once more, then improves the machining precision of final product.

Drawings

Fig. 1 is a schematic perspective view of the present invention in operation.

Fig. 2 is a schematic top perspective view of the present invention.

Fig. 3 is a schematic view of a partially cut-away perspective structure of a feeding mechanism according to the present invention.

Fig. 4 is an enlarged schematic view of the structure at a in fig. 3.

Fig. 5 is an enlarged schematic view of the structure at B in fig. 3.

Fig. 6 is a schematic perspective view of the first and second fixing portions of the present invention.

Fig. 7 is an enlarged schematic view of the structure at C in fig. 6.

Fig. 8 is a schematic perspective view of the stress relieving mechanism of the present invention.

Fig. 9 is an enlarged schematic view of the structure at D in fig. 8.

Fig. 10 is a schematic perspective view of a clamping portion according to the present invention.

Fig. 11 is an enlarged schematic view of the structure at E in fig. 10.

Fig. 12 is a schematic view of a partially cut-away perspective of the torsion mechanism of the present invention.

In the figure: 1. a base; 2. a support frame; 3. loading a platform; 4. a feeding mechanism; 401. a support plate frame; 402. a pushing slide block; 403. connecting a straight plate; 404. an L-shaped pressing plate; 405. a rotating shaft bracket; 5. a side clamping mechanism; 51. a mating portion; 511. carrying a square shaft; 512. a first electric push rod; 513. an equipment bin; 514. a sheave; 515. a sheave deflector rod; 516. a first motor; 52. a head fixing part; 521. a first clamping bin; 522. a first clamping plate; 523. a first bi-directional screw; 524. a transmission shaft; 525. a second motor; 526. guiding the special-shaped plate; 53. a secondary fixing part; 531. an elliptic bin; 532. a bolt; 533. a third motor; 6. a torsion mechanism; 61. a torsion corner; 611. supporting a vertical plate; 612. a turntable; 613. a connecting gear; 614. a rack; 615. a first cylinder; 62. a clamping part; 621. a second clamping bin; 622. a second clamping plate; 623. a second bidirectional screw; 624. a fourth motor; 625. limiting upright posts; 7. a stress eliminating mechanism; 71. a pressing part; 711. a support platform; 712. a slide rail; 713. a second electric push rod; 714. a second cylinder; 715. an electric heating rod; 72. a vibration part; 721. a fifth motor; 722. a cam; 723. and a contact lever.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1 and 2, a fan blade section bar torsion angle device comprises a base 1, wherein a support frame 2 which is symmetrical in front and back is arranged on the upper end face of the base 1, a loading platform 3 is arranged on the upper end face of the base 1, a side clamping mechanism 5 for fixing the right end of the fan blade section bar is arranged between the support frames 2, and a feeding mechanism 4 for matching with the side clamping mechanism 5 to implement automatic alignment feeding is also arranged between the support frames 2; the side clamping mechanism 5 comprises a matching part 51 arranged on one of the supporting frames 2, a first fixing part 52 is arranged on the matching part 51, and a second fixing part 53 for carrying out secondary limiting on the fan blade profile fixed by the first fixing part 52 is arranged on the first fixing part 52. The two support frames 2 are controlled to move left and right along the base 1 by the same existing linear driving source.

Referring to fig. 1 and 2, a torsion mechanism 6 for implementing a unified torsion angle on a plurality of fan blade profiles by matching with a side clamping mechanism 5 is arranged on a base 1; the twisting mechanism 6 comprises a twisting corner 61 arranged on the base 1 and used for twisting the fan blade profile, and a clamping part 62 used for double fixing of the left end of the fan blade profile is arranged on the twisting corner 61.

Referring to fig. 1 and 2, a loading platform 3 is provided with a stress relieving mechanism 7 for performing multi-point elastic pressing and heating on fan blade profiles during torsion; the stress eliminating mechanism 7 comprises a pressing part 71 arranged on the loading platform 3, and a vibration part 72 for eliminating the torsional stress of the fan blade profile through vibration is arranged on the pressing part 71.

Referring to fig. 1,2, 3 and 5, the feeding mechanism 4 includes a support frame 401, a pushing slider 402, a connecting straight plate 403, an L-shaped pressing plate 404 and a rotating shaft frame 405, where the support frame 401 is fixedly installed at the left end of the support frame 2, a plurality of slideways penetrating through the right end surface of the support frame 401 are provided on the upper end surface of the support frame 401 in a linear array manner, the pushing slider 402 is slidably installed in the slideways, the left end of the pushing slider 402 is connected with the inner wall of the slideways through a set spring, an arc supporting block for pushing fan blade sections is integrally formed at the upper end of the pushing slider 402, a connecting straight plate 403 is fixedly installed at the lower end of the pushing slider 402, an L-shaped pressing plate 404 is hinged at the right end of the connecting straight plate 403, a rotating shaft frame 405 located at the rightmost end of the slideways is fixedly installed at the lower end surface of the support frame 401, a folding point of the L-shaped pressing plate 404 is hinged with the rotating shaft frame 405, and a triangle is provided at the right end of the L-shaped pressing plate 404.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, the matching portion 51 includes a bearing square shaft 511, a first electric push rod 512, an equipment bin 513, a sheave 514, a sheave deflector 515 and a first motor 516, the bearing square shaft 511 is installed between the supporting frames 2 through bearings, the first electric push rod 512 is fixedly installed on the supporting frame 2 at the front side, a limit hole corresponding to the telescopic end of the first electric push rod 512 is formed in the bearing square shaft 511, the equipment bin 513 is fixedly installed on the supporting frame 2 at the rear side, a rotating shaft penetrating through the equipment bin 513 is arranged on the bearing square shaft 511, a sheave 514 is fixedly sleeved on the rotating shaft located in the equipment bin 513, the sheave 516 is fixedly installed in the equipment bin 513, and the sheave deflector 515 connected with the sheave 514 in a matched transmission mode is fixedly sleeved at the output end of the first motor 516.

Referring to fig. 1, fig. 2, fig. 3, fig. 6 and fig. 7, the first fixing portion 52 includes a first clamping bin 521, a first clamping plate 522, a first bidirectional screw 523, a transmission shaft 524 and a second motor 525, the first clamping bin 521 corresponding to the pushing sliders 402 is fixedly installed on the bearing square shaft 511, the first clamping plate 522 symmetrical up and down is slidingly installed at the right end of the first clamping bin 521 through a set limit slideway, a guiding profiled plate 526 is provided on the first clamping plate 522 at the upper side, a slot corresponding to the guiding profiled plate 526 is provided on the first clamping plate 522 at the lower side, the guiding profiled plate 526 cooperates with the slot to limit the fan blade profile, a first bidirectional screw 523 penetrating through the upper end face of the first clamping bin 521 is installed in the first clamping bin 521 through a bearing, the first bidirectional screw 523 is in threaded connection with the first clamping plate 522, a first bevel gear is jointly connected with the upper end face of the first clamping bin through a set supporting block and a bearing 524, a second bevel gear connected with the first bevel gear 521 in a meshed manner is provided on the transmission shaft 524, and the second bevel gear is fixedly connected with the second bevel gear 521 at the rear side of the first clamping bin 521.

When the fan blade profile is required to be twisted, the first motor 516 is reversely started to reversely rotate the sheave deflector rod 515, the sheave deflector rod 515 is matched with the sheave 514 to enable the bearing square shaft 511 to rotate 180 degrees anticlockwise between the supporting frames 2 on the two sides, and then the first electric push rod 512 is started to limit the bearing square shaft 511 through the telescopic end and the limiting hole. When the first clamping bin 521 is turned over, the second motor 525 is in an unactuated state, and when the first clamping bin 521 rotates 180 degrees with the first clamping plate 522, the first clamping plate 522 is not in contact with the triangular plate, a worker places fan blade profiles to be processed on the supporting plate frame 401 one by one, and the left end of the fan blade profiles are attached to the inner cambered surface of the arc-resisting block, so that the placement of materials is completed.

Then, the second motor 525 is started to rotate with the transmission shaft 524, so that the first bi-directional screw 523 is rotated through the mutual matching of the first bevel gear and the second bevel gear, the first clamping plates 522 which are symmetrical up and down are moved in opposite directions, so that the first clamping plates 522 which are positioned below after overturning are contacted with the triangular plates and are pressed down, the L-shaped pressing plate 404 is rotated by taking the rotating shaft frame 405 as a center point, the pushing slide block 402 is pulled rightwards through the connecting straight plate 403, the right end of the fan blade profile to be processed is moved between the upper first clamping plates 522 and the lower first clamping plates 522 through the arc abutting blocks, and then the second motor 525 can be started to enable the upper first clamping plates 522 and the lower first clamping plates 522 to move close to each other through the first fixing part 52 and clamp the end of the fan blade profile, so that the right end of the fan blade profile is fixed.

Then reversely starting the first electric push rod 512 to unlock, and rotating the fan blade profile fixed by the first fixing part 52 clockwise by 180 degrees to reach the position to be processed through the matching part 51, and locking again by the first electric push rod 512, so that the subsequent operation can be continued, after the fan blade profile is twisted, reversely starting the second motor 525 to unlock the clamping of the first clamping plate 522, the twisted fan blade profile can fall down, therefore, the fan blade profile to be processed is only required to be manually placed at the corresponding position, the subsequent operation of feeding, clamping, fixing and unloading can be automatically performed on a plurality of fan blade profiles, the waiting time of intermediate material changing is reduced, thereby remarkably improving the processing speed and the production efficiency through increasing the production automation degree, being better than the manual operation in repeatability and reliability of the automatic equipment, being beneficial to ensuring the stability of the production process and improving the consistency of the products, being capable of rapidly adapting to the processing requirements of the fan blade profiles with different specifications, and increasing the adaptability of the equipment.

Referring to fig. 1,2 and 6, the secondary fixing portion 53 includes an oval bin 531, a bolt 532 and a third motor 533, the oval bin 531 is fixedly mounted on the upper end surface of the upper first clamping plate 522, the bolt 532 penetrating through the lower end surface and being bilaterally symmetrical is connected to the upper first clamping plate 522 through a bearing, a screw hole corresponding to the bolt 532 is provided in the lower first clamping plate 522, a belt pulley located in the oval bin 531 is fixedly sleeved on the bolt 532, the belt pulleys are connected through a belt transmission, and the third motor 533 with an output end fixedly connected with one of the bolts 532 is fixedly mounted on the oval bin 531.

During specific work, after the fixing of the fan blade profile by the first fixing portion 52 is completed, the third motor 533 is started to rotate with the bolt 532 fixed by the third motor, the bolt 532 is synchronously rotated by the cooperation of the belt pulley and the belt, and under the mutual cooperation of the bolt 532 and the screw hole, the first clamping plate 522 on the lower side is enabled to be in an immobilized state, so that the first clamping plate 522 on the upper side and the lower side is locked, the fan blade profile fixed by the first fixing portion 52 is limited secondarily, and machining errors caused by position deviation of the fan blade profile in subsequent machining due to unstable clamping are avoided.

Referring to fig. 1,2, 10 and 12, the torsion portion 61 includes a supporting vertical plate 611, a turntable 612, a connecting gear 613, a rack 614 and a first cylinder 615, the supporting vertical plate 611 is fixedly mounted on the upper end surface of the base 1 and located on the right side of the loading platform 3, the turntable 612 is mounted on the left end surface of the supporting vertical plate 611 through a bearing and corresponds to the first clamping bin 521 one by one, the turntable 612 penetrates through the right end surface of the supporting vertical plate 611, the connecting gear 613 is fixedly sleeved on the right end of the turntable 612 and is connected with the supporting vertical plate 611 through a bearing, the rack 614 which is simultaneously meshed and connected with the connecting gears 613 is slidably mounted on the right end surface of the supporting vertical plate 611, a first cylinder 615 is fixedly mounted on the supporting vertical plate 611, and a telescopic end of the first cylinder 615 is connected with an air pump mounted on the supporting vertical plate 611.

Referring to fig. 1, 2,10 and 11, the clamping portion 62 includes a second clamping chamber 621, a second clamping plate 622, a second bidirectional screw 623 and a fourth motor 624, the second clamping chamber 621 is fixedly mounted on the left end surface of the turntable 612, the second clamping plate 622 is slidably mounted on the left end surface of the second clamping chamber 621 through a limiting slideway, a plurality of limiting uprights 625 are arranged on the upper side of the second clamping plate 622 in an array manner, jacks corresponding to the limiting uprights 625 one by one are arranged on the lower side of the second clamping plate 622, a plurality of rubber rings for increasing friction force between the limiting uprights 625 and the corresponding jacks are arranged on the limiting uprights 625 in a linear array manner, the second bidirectional screw 623 is mounted in the second clamping chamber 621 through a bearing, and the fourth motor 624 is fixedly mounted on the second clamping chamber and has an output end fixedly connected with the second bidirectional screw 623.

During specific work, the fan blade profile after the fixing of the first fixing part 52 is clockwise rotated by 180 degrees to reach a position to be processed through the matching of the first motor 516 and the matching part 51, at the moment, the other end of the fan blade profile is located between the upper and lower second clamping plates 622, then the fourth motor 624 is started to enable the fan blade profile to synchronously approach the second clamping plates 622 on the upper side and the lower side through the second bidirectional screw 623 until the second clamping plates 622 finish fixing the other end of the fan blade profile, in the process that the second clamping plates 622 on the upper side and the lower side approach, the limiting upright rod 625 can be inserted into the jack, and when a plurality of rubber rings on the limiting upright rod 625 are inserted into the jack, the friction force between the limiting upright rod 625 and the jack is increased, so that the connection stability between the upper and the lower two second clamping plates 622 is improved, and the end of the fan blade profile is secondarily limited, so that the clamping and fixing of the fan blade profile is finished.

Then, the first cylinder 615 can be started to enable the telescopic end of the first cylinder to move backwards along with the rack 614, so that the rotary table 612 is rotated simultaneously through the connecting gear 613, one end of the clamping part 62 clamping the fan blade section is subjected to torsion processing, the operation of uniformly twisting angles on a plurality of fan blade section is achieved, a single processing period is shortened through batch operation, the production efficiency is further improved, meanwhile, the synchronous and uniformly twisting angle mode adopted can ensure that each blade receives the same degree of torsion processing, the consistency of the twisting angles of the fan blade is improved, more excellent airflow guiding and rotating characteristics are guaranteed for the fan, and the performance of the axial flow fan is improved.

Referring to fig. 1, fig. 2, fig. 8 and fig. 9, the pressing portion 71 includes a supporting platform 711, a sliding rail 712, a second electric push rod 713, a second cylinder 714 and an electric heating rod 715, the loading platform 3 is composed of a sliding plate and a carrying plate above the sliding plate, the sliding plate and the carrying plate are fixedly connected through a guiding rod in rectangular distribution, the sliding rail 712 in sliding connection with the sliding plate is arranged on the base 1, a second electric push rod 713 in fixed connection with a telescopic end and the sliding plate is fixedly arranged at the front end of the sliding rail 712, a second cylinder 714 in fixed connection with the carrying plate is fixedly arranged on the sliding plate, the second cylinder 714 is connected with an air pump arranged on the loading platform 3, supporting platforms 711 in one-to-one correspondence with the rotary table 612 are fixedly arranged on the carrying plate through a triangular bracket, a plurality of electric heating rods 715 in matrix distribution and penetrating through the lower end face of the supporting platform 711 are fixedly arranged on the supporting platform, and the electric heating rods 715 are fixedly connected with the supporting platform 711 through the arranged springs.

During specific work, before torsion, the loading platform 3 is pushed by the telescopic end of the second electric push rod 713, so that the supporting platform 711 is moved to the lower part of the fan blade profile to be processed, then the second air cylinder 714 is started to move upwards through the carrying plate with the supporting platform 711, then the upper end of the electric heating rod 715 is contacted with the lower end face of the fan blade profile, when the torsion angle fan blade profile is deformed, the electric heating rod 715 is always attached to the fan blade profile under the action of the spring, so that the electric heating rod 715 carries out multi-point support on the fan blade profile when the torsion angle is carried out, the stress on the fan blade profile is more uniform when the torsion angle is carried out, the surface damage caused by uneven deformation due to local stress concentration caused by uneven support is avoided, the electric heating rod 715 is started to heat the fan blade profile at the same time, and meanwhile, the fan blade profile is heated while the lower end face of the fan blade profile is carried out multi-point elastic support, the softness and the plasticity of the fan blade profile are improved, and the internal stress of the fan blade profile is reduced when the torsion angle is reduced.

After the torsion angle is finished, the second electric push rod 713 is started to enable the telescopic end of the second electric push rod 713 to move the inclined surface slide way to the lower side of the fan blade profile through the abutting part 71, then the clamping of the first clamping plate 522 and the second clamping plate 622 to the fan blade profile is sequentially released, after the first clamping plate 522 is released, the support frame 2 moves leftwards under the control of the linear driving source, the left end of the fan blade profile is no longer positioned between the first clamping plates 522, then when the second clamping plate 622 is released, the fan blade profile can freely fall onto the inclined surface slide way and slide out along the inclined surface slide way, and accordingly the discharging of a finished product is finished, and then the feeding mechanism 4 is reset and the support frame 2 moves rightwards to be reset.

Referring to fig. 1,2 and 9, the vibration part 72 includes a fifth motor 721, a cam 722 and a contact rod 723, wherein the fifth motor 721 is fixedly mounted on one of the triangular brackets at the lower end of the supporting platform 711, the cam 722 is fixedly sleeved at the output end of the fifth motor 721, the contact rod 723 which is in contact with the cam 722 is fixedly mounted on the supporting platform 711, and the outer surface of the contact rod 723 is coated with a rubber layer.

In specific operation, when the pressing portion 71 performs multipoint pressing, the fifth motor 721 is started to make the fifth motor drive the cam 722 to reciprocate to continuously strike the contact rod 723, so that the supporting platform 711 vibrates, the fan blade profile in the torsion angle process is vibrated, the internal stress of the fan blade profile is reduced again while the fan blade profile is subjected to plastic deformation, the stability and durability of the fan blade after production are improved, the plastic deformation capacity of the blade material under the combined action of heating and vibration is improved, torsion angle treatment can be completed in a short time, the production efficiency is improved again, and the machining precision of a final product is improved.

Working principle: when the fan blade profile needs to be twisted, the first motor 516 is reversely started to enable the first clamping bin 521 to be turned over through the matching part 51, so that a worker can place the fan blade profile to be processed on the support plate frame 401 one by one, and the fan blade profile is located in the arc supporting block of the pushing slide block 402, and accordingly placement of materials is completed.

Then the second motor 525 is reversely started to be matched with the feeding mechanism 4 through the matching part 51, the fan blade profile to be processed is moved between the upper and lower first clamping plates 522, then the second motor 525 can be positively started to be close to the upper and lower first clamping plates 522 through the first fixing part 52, the end part of the fan blade profile is fixed, then the fan blade profile fixed by the first fixing part 52 is clockwise rotated by 180 degrees through the matching part 51 to reach the position to be processed, and the third motor 533 is started to lock the first clamping plates 522 on the upper side and the lower side through the second fixing part 53, so that the fan blade profile fixed by the first fixing part 52 is secondarily limited.

After the side clamping mechanism 5 finishes clamping, the fourth motor 624 is started to clamp and fix the finished fan blade profiles through the clamping part 62 in the same way, and then the first air cylinder 615 can be started to enable the telescopic end of the first air cylinder to move backwards along with the rack 614, so that the turntable 612 can simultaneously twist one end of the fan blade profiles clamped by the clamping part 62, and the operation of uniformly twisting the fan blade profiles is achieved.

Before twisting, the loading platform 3 is pushed by starting the telescopic end of the second electric push rod 713 to move the supporting platform 711 below the fan blade profile to be processed, then starting the second air cylinder 714 to enable the upper end of the electric heating rod 715 to be in contact with the lower end surface of the fan blade profile, simultaneously starting the electric heating rod 715 to heat the fan blade profile, and starting the fifth motor 721 to vibrate the supporting platform 711 through the vibration part 72 while the pressing part 71 performs multi-point pressing, so as to vibrate the fan blade profile in the twisting process.

After the torsion angle is finished, the second electric push rod 713 is started to enable the telescopic end of the second electric push rod 713 to move the inclined surface slideway to the lower side of the fan blade profile through the pressing part 71, the clamping of the first clamping plate 522 and the second clamping plate 622 on the fan blade profile is sequentially released by the cooperation of the first fixing part 52, the fan blade profile after the torsion angle is released, and the fan blade profile slides out along the inclined surface slideway, so that the discharge of a finished product is completed.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a fan blade section bar torsion angle equipment, includes base (1), its characterized in that: the automatic alignment device is characterized in that support frames (2) which are symmetrical in front and back are arranged on the upper end face of the base (1), a loading platform (3) is arranged on the upper end face of the base (1), a side clamping mechanism (5) for fixing the right end of a fan blade profile is arranged between the support frames (2), and a feeding mechanism (4) for matching the side clamping mechanism (5) to implement automatic alignment feeding is also arranged between the support frames (2);

The side clamping mechanism (5) comprises a matching part (51) arranged on one of the supporting frames (2), a first fixing part (52) is arranged on the matching part (51), and a secondary fixing part (53) for carrying out secondary limit on fan blade profiles fixed by the first fixing part (52) is arranged on the first fixing part (52);

The cooperation portion (51) comprises a bearing square shaft (511), a first electric push rod (512), an equipment bin (513), a grooved pulley (514), a grooved pulley deflector rod (515) and a first motor (516), wherein the bearing square shaft (511) is installed between the support frames (2) through bearings, the first electric push rod (512) is fixedly installed on the support frames (2) at the front side, a limiting hole corresponding to the telescopic end of the first electric push rod (512) is formed in the bearing square shaft (511), the equipment bin (513) is fixedly installed on the support frames (2) at the rear side, a rotating shaft penetrating through the equipment bin (513) is arranged on the bearing square shaft (511), the grooved pulley (514) is fixedly sleeved on the rotating shaft located in the equipment bin (513), the first motor (516) is fixedly installed in the equipment bin, and the grooved pulley deflector rod (515) in matched transmission connection with the grooved pulley (514) is fixedly sleeved at the output end of the first motor (516).

The first fixing part (52) comprises a first clamping bin (521), a first clamping plate (522), a first bidirectional screw (523), a transmission shaft (524) and a second motor (525), wherein the first clamping bin (521) corresponding to the pushing sliding blocks (402) one by one is fixedly arranged on the bearing square shaft (511), the first clamping plate (522) which is vertically symmetrical is slidingly arranged at the right end of the first clamping bin (521) through a limiting slideway which is arranged, the first bidirectional screw (523) penetrating through the upper end surface of the first clamping bin (521) is arranged in a bearing in the first clamping bin (521), the first bidirectional screw (523) is in threaded connection with the first clamping plate (522), the first bevel gear is arranged at the upper end of the first bidirectional screw (523), the transmission shaft (524) is jointly connected with the upper end surface of the first clamping bin (521) through a supporting block and a bearing which are arranged, the second bevel gear which is in meshed connection with the first bevel gear is arranged on the transmission shaft (524), and the second motor (525) which is fixedly connected with the transmission shaft (524) is fixedly arranged on the first clamping bin (521) at the rear side;

The base (1) is provided with a torsion mechanism (6) for matching with the edge clamping mechanism (5) to implement unified torsion angles on a plurality of fan blade profiles;

The torsion mechanism (6) comprises a torsion corner (61) which is arranged on the base (1) and is used for twisting the fan blade profile, and a clamping part (62) which is used for double fixing of the left end of the fan blade profile is arranged on the torsion corner (61);

the torsion corner (61) comprises a supporting vertical plate (611), a rotary table (612), connecting gears (613), racks (614) and a first cylinder (615), wherein the supporting vertical plate (611) positioned on the right side of the loading platform (3) is fixedly installed on the upper end face of the base (1), the rotary table (612) which corresponds to the first clamping bins (521) one by one is installed on the left end face of the supporting vertical plate (611) through a bearing, the rotary table (612) penetrates through the right end face of the supporting vertical plate (611), the connecting gears (613) are fixedly sleeved on the right end of the rotary table (612), the connecting gears (613) are connected with the supporting vertical plate (611) through the bearing, the racks (614) which are simultaneously meshed and connected with the connecting gears (613) are slidably installed on the right end face of the supporting vertical plate (611), and the first cylinder (615) which is fixedly connected with the telescopic end and the racks (614) are fixedly installed on the supporting vertical plate (611);

The loading platform (3) is provided with a stress relieving mechanism (7) for performing multipoint elastic pressing and heating on the fan blade profile in the twisting process;

The stress eliminating mechanism (7) comprises a pressing part (71) arranged on the loading platform (3), and a vibration part (72) for eliminating torsional stress of the fan blade profile through vibration is arranged on the pressing part (71);

The supporting and pressing part (71) comprises a supporting platform (711), a sliding rail (712), a second electric push rod (713), a second air cylinder (714) and electric heating rods (715), the loading platform (3) is composed of sliding plates and object carrying plates above the sliding plates, the sliding plates and the object carrying plates are fixedly connected through guide rods which are distributed in a rectangular mode, the sliding rail (712) which is in sliding connection with the sliding plates is arranged on the base (1), the second electric push rod (713) which is fixedly connected with the telescopic end and the sliding plate is fixedly arranged at the front end of the sliding rail (712), the second air cylinder (714) which is fixedly connected with the telescopic end and the object carrying plates is fixedly arranged on the sliding plates, supporting platforms (711) which are in one-to-one correspondence with the rotary tables (612) are fixedly arranged on the object carrying plates, a plurality of electric heating rods (715) which are distributed in a matrix mode and penetrate through the lower end faces of the supporting platforms (711) are fixedly connected with the supporting platforms (711) through springs which are arranged.

2. A fan blade profile corner apparatus as in claim 1, wherein: feed mechanism (4) are including supporting plate frame (401), pushing away material slider (402), connect straight board (403), L type clamp plate (404) and pivot frame (405), support frame (2) left end fixed mounting jointly has supporting plate frame (401), a plurality of slides that run through supporting plate frame (401) right-hand member face have been seted up to supporting plate frame (401) up end in linear array mode, sliding mounting has pushing away material slider (402) in the slide, pushing away material slider (402) upper end integrated into one piece has the arc that is used for promoting fan blade section bar to support the piece, pushing away material slider (402) lower extreme fixed mounting has and connects straight board (403), connect straight board (403) right-hand member hinge have L type clamp plate (404), the buckle point and the pivot frame (405) of L type clamp plate (404) are articulated that are located slide rightmost end, the right-hand member of L type clamp plate (404) is provided with the set-square.

3. A fan blade profile corner apparatus as in claim 1, wherein: the secondary fixing part (53) comprises an elliptic bin (531), bolts (532) and a third motor (533), wherein the elliptic bin (531) is fixedly installed on the upper end face of the first clamping plate (522) at the upper side, the bolts (532) penetrating through the lower end face of the upper side and symmetrically arranged left and right are connected to the first clamping plate (522) at the upper side through bearings, screw holes corresponding to the bolts (532) are formed in the first clamping plate (522) at the lower side, belt pulleys located in the elliptic bin (531) are fixedly sleeved on the bolts (532), the belt pulleys are connected through a belt transmission, and the third motor (533) with an output end fixedly connected with one of the bolts (532) is fixedly installed on the elliptic bin (531).

4. A fan blade profile corner apparatus as in claim 1, wherein: clamping part (62) are including second centre gripping storehouse (621), second splint (622), second bidirectional screw (623) and fourth motor (624), revolving stage (612) left end face fixed mounting has second centre gripping storehouse (621), and second splint (622) of symmetry about second centre gripping storehouse (621) left end face through the spacing slide slidable mounting that sets up are installed in second centre gripping storehouse (621) through bearing and second bidirectional screw (623) of second splint (622) threaded connection, and fixed mounting has fourth motor (624) of output and second bidirectional screw (623) fixed connection on second centre gripping storehouse (621).

5. The fan blade profile corner apparatus of claim 4, wherein: the fan blade is characterized in that a guiding profiled plate (526) is arranged on the first clamping plate (522) at the upper side, a slot corresponding to the guiding profiled plate (526) is arranged on the first clamping plate (522) at the lower side, the guiding profiled plate (526) is matched with the slot to limit fan blade profiles, a plurality of limiting vertical rods (625) are arranged on the second clamping plate (622) at the upper side in an array mode, jacks corresponding to the limiting vertical rods (625) one to one are arranged on the second clamping plate (622) at the lower side, a plurality of rubber rings for increasing friction force between the limiting vertical rods and the corresponding jacks are arranged on the limiting vertical rods (625) in a linear array mode, and jacks corresponding to the limiting vertical rods (625) are arranged on the second clamping plate (622) at the lower side.

6. A fan blade profile corner apparatus as in claim 1, wherein: the vibration part (72) comprises a fifth motor (721), a cam (722) and a contact rod (723), wherein the fifth motor (721) is fixedly installed on one of the triangular brackets at the lower end of the supporting platform (711), the cam (722) is fixedly sleeved at the output end of the fifth motor (721), the contact rod (723) which is in contact with the cam (722) is fixedly installed on the supporting platform (711), and a rubber layer is coated on the outer surface of the contact rod (723).