Blade positioning mechanism and impeller machining device

Abstract

A kind of vane positioning mechanism and the impeller processing device with the vane positioning mechanism, vane positioning mechanism includes mounting bracket, first cover and several groups of clamping module, mounting bracket and first cover coaxial assembly, several groups of clamping module are distributed along the center ring of mounting bracket. First cover is driven by first drive cylinder to realize rotation relative to mounting bracket. Each group of clamping module includes inner clamping component and outer clamping component, inner clamping component is assembled with mounting bracket, and outer clamping component is assembled with first cover. Compared with prior art, the present application drives first cover to rotate relative to mounting bracket by first drive cylinder, so that the vane clamped by clamping component rotates with inner clamping component fixed to mounting bracket as the rotation center, realizes the quick adjustment of the angle of all vanes, avoids inefficient operation of adjusting piece by piece, and significantly improves the efficiency of multi-vane synchronous positioning.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of impeller machining, and particularly relates to a blade positioning mechanism and an impeller machining device with the same. BACKGROUND

[0002] An impeller is a key component in many mechanical devices and is widely used in the fields of fans, pumps, compressors, etc. In the manufacturing process of the impeller, welding the blade to the bottom plate is an important step. The traditional impeller welding machining technology usually adopts manual or semi-automatic mode, which specifically includes the steps of carrying the bottom plate, conveying the blade, positioning and welding, etc. However, the traditional operation mode has the following disadvantages:

[0003] 1. The current impeller welding machining still highly depends on manual operation, which specifically includes the following aspects: the bottom plate needs to be carried manually, the blade needs to be conveyed manually one by one, the welding position needs to be positioned manually, and the welding process needs to be intervened by the operator all the time. This traditional operation mode has the following disadvantages: on the one hand, heavy carrying and repetitive labor can easily cause the operator's physical fatigue, which significantly increases the risk of work accidents; on the other hand, the inefficiency of manual operation leads to slow production rhythm, which is difficult to meet the requirements of modern industry on production efficiency.

[0004] 2. The blade needs to be carried to the bottom plate one by one for positioning and welding, and displacement errors are easily caused in the assembly process, which directly leads to unstable welding quality and even causes imbalance of the blade, which greatly affects the aerodynamic performance and service life of the impeller. SUMMARY

[0005] In order to solve the above technical problems, the present application is solved by the following technical scheme.

[0006] A blade positioning mechanism, comprising a mounting frame, a first cover and a plurality of groups of clamping modules, the mounting frame and the first cover are coaxially assembled, and the plurality of groups of clamping modules are distributed in a ring shape along the center of the mounting frame. The first cover is driven by a first driving cylinder to rotate relative to the mounting frame. Each group of clamping modules comprises an inner clamping assembly and an outer clamping assembly, the inner clamping assembly is assembled and connected with the mounting frame, and the outer clamping assembly is assembled and connected with the first cover.

[0007] Further, a second cover is coaxially arranged with the first cover, and the second cover is driven by a second driving cylinder to rotate relative to the first cover. The inner clamping assembly comprises a first clamping seat, the top of the first clamping seat is provided with a first hinge, the back of the first clamping seat is provided with a second hinge, and the front of the first clamping seat is provided with a first clamping piece for clamping the blade; a rotating ring seat is arranged on the mounting frame, the first hinge is connected with the mounting frame, and the second hinge is connected with the rotating ring seat. The outer clamping assembly comprises a second clamping seat, the top of the second clamping seat is provided with a third hinge, the back of the second clamping seat is provided with a fourth hinge, and the front of the second clamping seat is provided with a second clamping piece for clamping the blade; the third hinge is connected with the first cover, and the fourth hinge is connected with the second cover.

[0008] Further, the third hinge is provided with a sliding rod, the first cover is provided with a first sliding groove designed in a linear shape along the radial direction, and the mounting frame is provided with a second sliding groove in an arc shape; the sliding rod passes through the first sliding groove and the second sliding groove; the fourth hinge is connected with a linear actuator, and the linear actuator is arranged on the second cover.

[0009] Further, the second hinge is provided with a guide rod, the rotating ring seat is provided with a guide sleeve matched with the guide rod and a reset piece for assisting the guide rod to reset.

[0010] Further, the first clamping piece and the second clamping piece each comprise a clamping block, the top of the clamping block is provided with a magnetic block, and the clamping block is provided with symmetrically arranged inflatable clamping fingers.

[0011] Further, the back of the clamping block is provided with a limiting block, the limiting block is provided with elastic pieces on both sides, and the first clamping seat or the second clamping seat is provided with a rotating groove for accommodating the limiting block and the elastic pieces.

[0012] A kind of impeller processing device, including base, base is equipped with handling mechanism, for installing bottom plate and blade processing table, for conveying blade feeding mechanism. The above-mentioned blade positioning mechanism is installed on handling mechanism;Handling mechanism includes conveying frame, first crossbeam is arranged on conveying frame by transverse shift module, mounting plate is arranged on first crossbeam by lifting module, mounting plate is equipped with rotating assembly, mounting frame is connected with rotating assembly.

[0013] Further, the second crossbeam is arranged on the conveying frame by the transverse shift module, the handling seat is arranged on the second crossbeam by the lifting module, and the handling seat is equipped with a plurality of suction heads for adsorbing the bottom plate.

[0014] Further, the base is also equipped with a loading rack, the loading rack includes a receiving plate, a plurality of limiting plates are connected to the side of the receiving plate, and the plurality of limiting plates cooperate with the receiving plate to form a discharging cavity for stacking the bottom plate;The bottom of the receiving plate is provided with a through hole, and the base is provided with a jacking device corresponding to the through hole.

[0015] Compared with the prior art, the present application has the following beneficial technical effects:

[0016] 1. The impeller positioning mechanism drives the first cover to rotate relative to the mounting frame through the first driving cylinder, so that the blades clamped by the clamping assembly rotate around the inner clamping assembly fixed to the mounting frame as the center of rotation, realizing rapid adjustment of the angles of all blades, avoiding inefficient operation of adjusting blades one by one, and significantly improving the synchronous positioning efficiency of multiple blades.

[0017] 2. The impeller positioning mechanism drives the second cover to rotate relative to the first cover through the second driving cylinder, so that the blades are inclined relative to the bottom plate, realizing rapid adjustment of the inclination angle between the blades and the bottom plate, avoiding inefficient operation of adjusting blades one by one, and significantly improving the synchronous positioning efficiency of multiple blades.

[0018] 3. The flexible clamping of the blades is realized by the combination of the magnetic suction block built in the clamping block and the inflatable clamping fingers, avoiding damage to the surface of the blades. The elastic limiting structure composed of the limiting block and the elastic element can increase the friction force between the blades and the inflatable clamping fingers through the torsion provided by the elastic element during angle adjustment, further improving the stability of clamping.

[0019] 4. The impeller machining device provided by the application can realize automatic machining through the cooperation between the blade positioning mechanism, the carrying mechanism, the feeding mechanism and the charging rack, solving the problem of low efficiency of traditional manual machining. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a perspective view of the impeller machining device.

[0021] Figure 2 It is a plan view of the impeller machining device.

[0022] Figure 3 It is a perspective view of the charging rack and the machining table.

[0023] Figure 4 It is a perspective view of the blade positioning mechanism Figure 1 .

[0024] Figure 5 It is a perspective view of the blade positioning mechanism Figure 2 .

[0025] Figure 6 It is a sectional view at the outer clamping assembly.

[0026] Figure 7 It is a sectional view at the inner clamping assembly.

[0027] Figure 8 It is a sectional view of the outer clamping assembly at the limiting block.

[0028] Figure 9 It is a perspective view of the mounting frame.

[0029] Figure 10 It is a perspective view of the first cover.

[0030] The following is a description of reference numerals:

[0031] 100, base station; 110, processing station; 120, feeding mechanism;

[0032] 200, carrying mechanism; 210, conveying frame; 220, transverse moving module; 230, lifting module; 240, first cross beam; 241, mounting plate; 242, rotating assembly; 250, second cross beam; 251, carrying seat; 252, suction head;

[0033] 300, blade positioning mechanism; 310, mounting frame; 311, rotating ring seat; 312, second sliding groove; 313, guide sleeve; 314, reset member; 320, first cover; 321, first bearing; 322, first driving cylinder; 323, first sliding groove; 330, second cover; 331, second bearing; 332, second driving cylinder; 340, inner clamping assembly; 341, first clamping seat; 342, first hinged member; 343, second hinged member; 344, first clamping member; 345, guide rod; 350, outer clamping assembly; 351, second clamping seat; 352, third hinged member; 353, fourth hinged member; 354, second clamping member; 355, sliding rod; 356, linear actuator; 360, clamping block; 361, magnetic suction block; 362, inflatable clamp finger; 363, limiting block; 364, elastic member; 365, rotating groove;

[0034] 400, loading frame; 410, material receiving plate; 420, limiting plate; 430, jacking device. DETAILED DESCRIPTION

[0035] The application will be further described below in conjunction with the drawings and specific embodiments.

[0036] In the following embodiments, the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the application and cannot be understood as a limitation of the application.

[0037] In the description of the present application, it should be understood that the terms: center, longitudinal, transverse, length, width, thickness, upper, lower, front, rear, left, right, vertical, horizontal, top, bottom, inner, outer, clockwise, counterclockwise, etc. Indicate the orientation or positional relationship based on the orientation or positional relationship 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 limiting the present application. In addition, the terms: first, second, etc. Are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features shown. In the description of the present application, unless otherwise explicitly specified and limited, the terms: mounting, connecting, connecting, etc. Should be understood in a broad sense, and those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0038] Reference Figures 1 to 3 A kind of impeller processing device, including base 100, base 100 is equipped with handling mechanism 200, welding mechanism (not shown in the drawing), processing table 110 for installing bottom plate and blade, feeding mechanism 120 for conveying blade, loading rack 400 for stacking bottom plate. Handling mechanism 200 includes conveying frame 210, conveying frame 210 is equipped with first crossbeam 240 and second crossbeam 250 respectively through transverse movement module 220, first crossbeam 240 is equipped with mounting plate 241 through lifting module 230, mounting plate 241 is equipped with rotating assembly 242, rotating assembly 242 is connected with blade positioning mechanism 300. Second crossbeam 250 is equipped with handling seat 251 through lifting module 230, the bottom of handling seat 251 is equipped with a plurality of suction heads 252 for adsorbing bottom plate.

[0039] The working principle of the impeller processing device is as follows: first, the handling seat 251 carries the bottom plate from the loading rack 400 to the processing table 110, then the blade positioning mechanism 300 picks up the blade from the feeding belt and adjusts the blade to the required angle, and then places it on the bottom plate located on the processing table 110. The welding mechanism welds the blade and the bottom plate to form an impeller. Through the cooperation between the blade positioning mechanism 300, the handling mechanism 200, the feeding mechanism 120 and the loading rack 400, the impeller processing device can form a full-process automation of material carrying, positioning and welding.

[0040] Among them, the loading rack 400 includes a material receiving plate 410, a plurality of limiting plates 420 are connected to the side surface of the material receiving plate 410, and the plurality of limiting plates 420 cooperate with the material receiving plate 410 to form a material placing cavity for stacking the bottom plate. The design of the limiting plate 420 allows the bottom plate to be neatly stacked. The bottom of the material receiving plate 410 is provided with a through hole, and the base 100 is equipped with a jacking device 430 corresponding to the through hole. The jacking device 430 can lift the bottom plate, which facilitates subsequent handling and processing, and can increase the loading capacity of the loading rack 400 without increasing the length of the first lifting module 230.

[0041] Embodiment 1

[0042] As an embodiment of the present application, referring to Figures 4 to 10 The blade positioning mechanism 300 comprises a mounting frame 310, a first cover 320, and a plurality of clamping modules. The mounting frame 310 and the first cover 320 are coaxially assembled, and are connected by a first bearing 321. The plurality of clamping modules are distributed in a ring shape along the center of the mounting frame 310. The mounting frame 310 is equipped with a first driving cylinder 322, and the first cover 320 is driven by the first driving cylinder 322 to rotate relative to the mounting frame 310. Each clamping module comprises an inner clamping assembly 340 and an outer clamping assembly 350. The inner clamping assembly 340 is connected to the mounting frame 310, and the outer clamping assembly 350 is connected to the first cover 320. The blade positioning mechanism 300 drives the first cover 320 to rotate relative to the mounting frame 310 by the first driving cylinder 322, so that the blades clamped by the clamping assemblies rotate around the inner clamping assembly 340 fixed to the mounting frame 310 as the center, thereby achieving rapid adjustment of the angles of all blades, avoiding inefficient operation of adjusting each blade, and significantly improving the efficiency of synchronous positioning of multiple blades.

[0043] Embodiment 2

[0044] As an embodiment of the present application, on the basis of embodiment 1, the vane positioning mechanism 300 further comprises a second cover 330 coaxially assembled with the first cover 320, and the first cover 320 and the second cover 330 are assembled and connected through a second bearing 331. The mounting frame 310 is assembled with a second driving cylinder 332, and the second cover 330 is driven to rotate relative to the first cover 320 through the second driving cylinder 332. The inner clamping assembly 340 comprises a first clamping seat 341, the top of which is provided with a first hinge 342, the back is provided with a second hinge 343, and the front is provided with a first clamping piece 344 for clamping the vane; the mounting frame 310 is assembled with a rotating ring seat 311, the first hinge 342 is connected with the mounting frame 310, and the second hinge 343 is connected with the rotating ring seat 311. The outer clamping assembly 350 comprises a second clamping seat 351, the top of which is provided with a third hinge 352, the back is provided with a fourth hinge 353, and the front is provided with a second clamping piece 354 for clamping the vane; the third hinge 352 is connected with the first cover 320, and the fourth hinge 353 is assembled and connected with the second cover 330. The impeller positioning mechanism drives the second cover 330 to rotate relative to the first cover 320 through the second driving cylinder 332, so that the vane is inclined relative to the bottom plate, realizing the rapid adjustment of the inclination angle between the vane and the bottom plate, avoiding the low-efficiency operation of adjusting piece by piece, and significantly improving the synchronous positioning efficiency of multiple vanes. In addition, the present embodiment can also adjust the angle of the vane rotating around the inner clamping assembly 340 as in embodiment 1, which can be achieved by rotating the first cover 320 and the second cover 330 through the same angle at the same time.

[0045] Further, in order to cooperate with the vane adjustment, the third hinge 352 is provided with a slide rod 355, the first cover 320 has a first sliding groove 323 designed in a radial straight line, and the mounting frame 310 has a second sliding groove 312 designed in an arc shape, and the slide rod 355 passes through the first sliding groove 323 and the second sliding groove 312. The fourth hinge 353 is connected with a linear actuator 356, and the linear actuator 356 is assembled on the second cover 330. When the vane is adjusted in angle around the inner clamping assembly 340, the first cover 320 rotates, driving the slide rod 355 to slide along the second sliding groove 312, and at the same time, the slide rod 355 slides along the first sliding groove 323, so that the upper part of the outer clamping assembly 350 moves towards the axis of the mounting frame 310, and at the same time, the linear actuator 356 drives the lower part of the outer clamping assembly 350 to move towards the axis of the mounting frame 310, so as to ensure that the whole outer clamping assembly 350 approaches the axis of the mounting frame 310 in a vertical posture.

[0046] To match the blade adjustment, the inner clamping assembly 340 is also designed: the second hinge 343 is provided with a guide rod 345, the rotating ring seat 311 is provided with a guide sleeve 313 matched with the guide rod 345 and a reset member 314 assisting the reset of the guide rod 345. When the inclination adjustment between the blade and the bottom plate is performed, the second cover 330 is rotated, the outer clamping assembly 350 drives the lower part of the blade to tilt, and during the process, the linear actuator 356 performs the corresponding extension and retraction actions, and the blade drives the guide rod 345 of the second hinge 343 to perform the corresponding extension and retraction.

[0047] In addition, to ensure the smooth movement of the outer clamping assembly 350 and the inner clamping assembly 340, the hinge structure including the first to fourth hinges 353 is designed as a ball head hinge.

[0048] Embodiment 3

[0049] As an embodiment of the present application, the first clamping member 344 and the second clamping member 354 each include a clamping block 360, the top of the clamping block 360 is provided with a magnetic block 361, the clamping block 360 is provided with symmetrically arranged inflatable clamping fingers 362, the back of the clamping block 360 is provided with a limiting block 363, the two sides of the limiting block 363 are provided with elastic members 364, and the first clamping seat 341 or the second clamping seat 351 is provided with a rotating groove 365 accommodating the limiting block 363 and the elastic members 364. The magnetic block 361 built in the clamping block 360 and the inflatable clamping fingers 362 are combined to flexibly clamp the blade, which can avoid damaging the surface of the blade. The elastic limiting structure composed of the limiting block 363 and the elastic members 364 can increase the friction between the blade and the inflatable clamping fingers 362 by the torsional force provided by the elastic members 364 during the blade adjustment process, further improving the stability of clamping.

[0050] The protection scope of the present application includes but is not limited to the above embodiments, the protection scope of the present application is subject to the claims, any replacement, deformation, improvement of the present technology easily thought by the skilled in the art falls within the protection scope of the present application.

Claims

1. A blade positioning mechanism, characterized in that, The device includes a mounting frame (310), a first cover (320), a second cover (330), and several sets of clamping modules. The mounting frame (310), the second cover (330), and the first cover (320) are coaxially assembled. The second cover (330) is driven by a second drive cylinder (332) to achieve rotation relative to the first cover (320). Several sets of clamping modules are distributed in a ring around the center of the mounting frame (310). The first cover (320) is driven by a first drive cylinder (322) to achieve rotation relative to the mounting frame (310). The clamping module includes an inner clamping component (340) and an outer clamping component (350). The inner clamping component (340) is assembled and connected to the mounting frame (310), and the outer clamping component (350) is assembled and connected to the first cover (320). The inner clamping assembly (340) includes a first clamping seat (341), a first hinge (342) on the top of the first clamping seat (341), a second hinge (343) on the back, and a first clamping member (344) for clamping the blade on the front; a rotating ring seat (311) is mounted on the mounting frame (310), the first hinge (342) is connected to the mounting frame (310), and the second hinge (343) is connected to the rotating ring seat (311); The external clamping assembly (350) includes a second clamping seat (351), the top of the second clamping seat (351) is provided with a third hinge (352), the back is provided with a fourth hinge (353), and the front is provided with a second clamping member (354) for clamping the blade; the third hinge (352) is connected to the first cover (320), and the fourth hinge (353) is assembled and connected to the second cover (330).

2. The blade positioning mechanism according to claim 1, characterized in that, The third hinge (352) is provided with a slide rod (355), the first housing (320) has a first groove (323) with a radial straight design, and the mounting bracket (310) has an arc-shaped second groove (312); the slide rod (355) passes through the first groove (323) and the second groove (312); the fourth hinge (353) is connected to a linear actuator (356), and the linear actuator (356) is mounted on the second housing (330).

3. The blade positioning mechanism according to claim 2, characterized in that, The second hinge (343) is provided with a guide rod (345), and the rotating ring seat (311) is provided with a guide sleeve (313) that cooperates with the guide rod (345) and a reset member (314) that helps the guide rod (345) to reset.

4. The blade positioning mechanism according to claim 1, characterized in that, Both the first clamping member (344) and the second clamping member (354) include a clamping block (360), a magnetic block (361) is provided on the top of the clamping block (360), and symmetrically arranged inflatable clamping fingers (362) are provided inside the clamping block (360).

5. A blade positioning mechanism according to claim 4, characterized in that, The clamping block (360) has a limiting block (363) on its back, and elastic elements (364) are provided on both sides of the limiting block (363). The first clamping seat (341) or the second clamping seat (351) has a rotating groove (365) for accommodating the limiting block (363) and the elastic elements (364).

6. An impeller processing device, characterized in that, It includes a base (100), on which a conveying mechanism (200), a processing table (110) for mounting the base plate and blades, and a feeding mechanism (120) for conveying the blades are mounted. The blade positioning mechanism (300) according to any one of claims 1-5 is mounted on the transport mechanism (200); the transport mechanism (200) includes a conveyor frame (210), a first crossbeam (240) is mounted on the conveyor frame (210) via a transverse module (220), a mounting plate (241) is mounted on the first crossbeam (240) via a lifting module (230), a rotating component (242) is mounted on the mounting plate (241), and the mounting frame (310) is connected to the rotating component (242).

7. The impeller processing device according to claim 6, characterized in that, A second crossbeam (250) is mounted on the conveyor frame (210) via a transverse module (220), and a transport seat (251) is mounted on the second crossbeam (250) via a lifting module (230). The bottom of the transport seat (251) is equipped with several adsorption heads (252) for adsorbing the base plate.

8. The impeller processing device according to claim 7, characterized in that, The base (100) is also equipped with a loading rack (400), which includes a support plate (410). The side of the support plate (410) is connected to several limiting plates (420). The limiting plates (420) cooperate with the support plate (410) to form a material discharge cavity for stacking the bottom plate. The bottom of the support plate (410) is provided with a through hole, and the base (100) is equipped with a lifting device (430) at the corresponding through hole.

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