A gripping and holding device based on blower wheel assembly

Abstract

The application discloses to the technical field of fan processing, and particularly discloses a grabbing and holding device based on blower impeller assembly, which comprises a two-axis linear module, the sliding table side surface of the two-axis linear module is fixedly connected with a mounting rack, the lower end of the mounting rack is fixedly installed with a bearing seat, the bearing seat is installed with a rotary adjusting mechanism, the lower end of the rotary adjusting mechanism is fixedly installed with an annular upper cover, the lower end of the annular upper cover is fixedly installed with an annular base, and the annular upper cover and the annular base are installed with a clamping mechanism for grabbing the impeller; the application has the beneficial effects that when the impeller needs to be grabbed, the two-axis linear module drives the mounting rack to move to adjust the position of the grabbing device, the clamping mechanism is moved to the inner side of the wheel cover at the upper end of the impeller, then the rotary adjusting mechanism drives the clamping mechanism to rotate, the clamping claw is located at the gap between the upper blades of the impeller, and the clamping claw is prevented from colliding with the blades in the process of moving outward.

Description

TECHNICAL FIELD

[0001] The application relates to the fan processing technical field, in particular to a grabbing and holding device based on blower wheel assembly. BACKGROUND

[0002] The blower is relatively important in the automobile air conditioning system and the heating system, and is mainly responsible for air circulation and temperature regulation. The blower mainly comprises a motor, a volute, a current collector and a blower wheel, the blower wheel is installed in the volute and is driven by the motor. In the process of processing the fan, the blower wheel is usually clamped by a grabbing device first, and then the blower wheel is moved to the volute for assembly by the grabbing device. Most of the existing grabbing devices are hoisting equipment, which cannot stably clamp and position the blower wheel, so that the blower wheel cannot be accurately placed in the volute during assembly, and the position of the blower wheel often needs to be repeatedly adjusted, which greatly reduces the assembly efficiency. Moreover, in order to prevent the blower wheel from falling during clamping, the existing grabbing equipment usually uses rigid clamping jaws to clamp the blower wheel with large force, which causes scratches, indentations and other damages on the surface of the blower wheel, thereby affecting the appearance and quality of the blower wheel. Moreover, since the side surface of the blower wheel is annularly arrayed with multiple blades, the clamping difficulty is increased, the blower wheel cannot be stably clamped and fixed, and the accuracy and efficiency of the subsequent blower wheel assembly are not favorable. SUMMARY

[0003] The purpose of the present application is to provide a grabbing and holding device based on blower wheel assembly to solve the problems raised in the background.

[0004] To achieve the above purpose, the application provides the following technical scheme: a grabbing and holding device based on blower wheel assembly, comprising a two-axis linear module, a mounting frame is fixedly connected to the side surface of the sliding table of the two-axis linear module, a bearing seat is fixedly installed at the lower end of the mounting frame, a rotary adjusting mechanism is installed on the bearing seat, an annular upper cover is fixedly installed at the lower end of the rotary adjusting mechanism, an annular base is fixedly installed at the lower end of the annular upper cover, and a clamping mechanism for grabbing the blower wheel is installed in the annular upper cover and the annular base.

[0005] A wheel cover is arranged on the outer side of the annular base, a hub is arranged below the wheel cover, a plurality of blades are fixedly installed in an annular array between the hub and the wheel cover, a conical protruding portion is protrudingly arranged on the side surface of the hub, a plurality of negative pressure suction mechanisms are arranged in an annular array below the annular base, the negative pressure suction mechanisms are connected with the conical protruding portion on the side surface of the hub, and a plurality of transmission mechanisms are installed in an annular array in the annular base, the transmission mechanisms are used for controlling the suction locking of the negative pressure suction mechanisms.

[0006] As a further scheme of the present application, the inner side of the bearing seat is provided with a rotating groove, the bottom of the rotating groove is provided with a circular through groove downward, the rotating adjusting mechanism comprises a disc rotatingly installed in the rotating groove, the upper end of the disc is fixedly connected with a circular shaft, the circular shaft penetrates the bearing seat upward and extends to the outside, the upper end of the circular shaft is fixedly sleeved with a worm wheel, the upper end of the bearing seat is fixedly connected with a support frame, the inner side of the support frame is rotatingly installed with a worm, the worm is engaged with the worm wheel, the worm is driven by the motor shaft of the first servo motor fixedly installed on the outer side of the support frame, the lower end of the disc is fixedly connected with a plurality of fixing frames in a ring shape, the lower end of the fixing frame penetrates the through groove downward and is fixedly connected with the annular cover, and the plurality of fixing frames are commonly installed on the upper end of the annular cover.

[0007] As a further scheme of the present application, the clamping mechanism comprises a driving assembly and a clamping assembly, the bottom of the annular cover is provided with an annular cavity upwardly recessed, the driving assembly is installed in the annular cavity, the top of the annular base is provided with a plurality of contraction grooves in a ring array, and the clamping assembly is installed in the annular base.

[0008] As a further scheme of the present application, the driving assembly comprises an annular driving plate rotatingly installed in the annular cavity, the upper end of the annular driving plate is provided with a plurality of arc-shaped grooves in a ring array, the inner side of the annular driving plate is fixedly connected with an internal gear ring, the inner side of the internal gear ring is engaged with a driving gear, and the driving gear is driven by the output shaft of the second servo motor fixedly installed on the top of the annular cover.

[0009] As a further scheme of the present application, the clamping assembly comprises a plurality of clamping claws slidingly installed on the annular base in a ring array, the clamping claws are slidingly installed in the adjacent contraction grooves, the end of the clamping claw away from the annular base is provided with a clamping groove, the end of the clamping claw provided with the clamping groove is clamped with the wheel cover, and the upper end of each clamping claw is fixedly connected with a driving column, and the driving column is slidingly connected with the adjacent arc-shaped groove.

[0010] As a further scheme of the present application, the negative pressure adsorption mechanism comprises a fan-shaped negative pressure box arranged below the annular base, the lower end of the fan-shaped negative pressure box is an inclined curved surface, the upper end of the fan-shaped negative pressure box is fixedly connected with a supporting vertical plate, the upper end of the supporting vertical plate is fixedly connected with the annular base, a gas storage cylinder is arranged above the fan-shaped negative pressure box, the upper end of the gas storage cylinder is fixedly installed with a sealing cover, the upper end of the sealing cover penetrates and is inserted with a plug rod, the lower end of the plug rod extends to the inner cavity of the gas storage cylinder and is fixedly connected with a piston head, a connecting pipe is fixedly inserted at the upper end of the fan-shaped negative pressure box.

[0011] As a further further scheme of the present application, the bottom of the fan-shaped negative pressure box is matched with the conical protruding part of the hub side surface, and a sealing washer is fixedly connected to the lower end of the fan-shaped negative pressure box, and the sealing washer is tightly attached to the side surface of the conical protruding part of the hub.

[0012] As a further further scheme of the present application, the upper end of the annular base is provided with a plurality of circular grooves in an annular array, the transmission mechanism comprises an internally threaded sleeve rotatably installed in the circular groove, an external gear ring is fixedly sleeved to the outside of the internally threaded sleeve, a threaded rod is threadedly installed on the inside of the internally threaded sleeve, a lifting frame is fixedly connected to the lower end of the threaded rod, a guide plate is inserted through and connected to the upper end of the lifting frame, the upper end of the guide plate is fixedly connected to the annular base, and the lower end of the lifting frame is fixedly connected to the upper end of the plug rod.

[0013] As a further further scheme of the present application, the upper end of the internally threaded sleeve penetrates through the annular cavity and is rotatably connected to the upper end of the annular upper cover, the external gear ring is installed in the annular cavity, and the external gear ring is engaged with the internal gear ring.

[0014] The present application has the following advantages:

[0015] 1. When the impeller needs to be grabbed, the position of the grabbing device is adjusted by moving the mounting frame driven by the two-axis linear module, so that the clamping mechanism moves to the inside of the wheel cover at the upper end of the impeller, and then the clamping mechanism is rotated by the rotary adjusting mechanism, so that the clamping claw is located in the gap between the upper blades of the impeller, preventing the clamping claw from colliding with the blades during outward movement.

[0016] 2. The clamping mechanism and the transmission mechanism are moved by the driving assembly, the transmission mechanism drives the negative pressure suction mechanism to move, the wheel cover of the impeller is clamped and fixed by the cooperation of the plurality of clamping claws, and the plurality of negative pressure suction mechanisms are arranged in an annular array on the conical protruding part of the hub side surface, so that the inner cavity of the fan-shaped negative pressure box also forms a negative pressure, and the fan-shaped negative pressure box is firmly adsorbed on the side surface of the conical protruding part, and the conical protruding part is adsorbed and locked by the cooperation of the plurality of fan-shaped negative pressure boxes.

[0017] 3、Through the two-axis linear module drives the grabbing device to move, the grabbing device drives the impeller to move to the upper of the pump shaft in the volute, makes the mounting hole of the hub and the pump shaft up and down alignment, again through the rotating adjusting mechanism drives the clamping mechanism to rotate, thereby drives the impeller to rotate, makes the keyway in the mounting hole of the hub and the keyway mouth on the pump shaft alignment, at this time again through the two-axis linear module drives the grabbing device to move down, makes the impeller to move down and the pump shaft butt joint, through the clamping mechanism and multiple negative pressure adsorption mechanism cooperation that is arranged can firmly hold the impeller, through the rotating adjusting mechanism that is arranged can conveniently rotate the impeller, guarantees the impeller and the pump shaft accurate butt joint, greatly improves work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structure perspective drawing of grabbing and holding device for the impeller assembly of the application;

[0019] Figure 2 It is the local structure partial sectional view of grabbing and holding device for the impeller assembly of the application;

[0020] Figure 3 It is the structure sectional view of grabbing and holding device for the impeller assembly of the application;

[0021] Figure 4 It is Figure 3 It is the structure enlarged schematic view of A in the middle;

[0022] Figure 5 It is the local structure perspective drawing of grabbing and holding device of the application;

[0023] Figure 6 It is the local structure sectional view of grabbing and holding device of the application;

[0024] Figure 7 It is the structure explosion drawing of annular upper cover, annular base, clamping mechanism, transmission mechanism and negative pressure adsorption mechanism of the application;

[0025] Figure 8 It is the structure explosion drawing of annular base, transmission mechanism and negative pressure adsorption mechanism of the application.

[0026] In the figure: 1, two-axis linear module; 11, mounting frame; 12, bearing seat; 13, rotating groove; 14, through groove; 2, disc; 21, round shaft; 22, worm; 23, support frame; 24, worm; 25, fixed frame; 3, annular upper cover; 31, annular cavity; 32, annular base; 33, contraction groove; 34, circular groove; 4, annular drive plate; 41, arc-shaped groove; 42, internal gear ring; 43, drive gear; 44, clamping claw; 45, clamping groove; 46, drive column; 5, wheel cover; 51, blade; 52, hub; 6, fan-shaped negative pressure box; 61, sealing washer; 62, support vertical plate; 63, air cylinder; 64, sealing cover; 65, connecting pipe; 66, plug rod; 67, piston head; 7, internal thread sleeve; 71, external gear ring; 72, threaded rod; 73, lifting frame; 74, guide plate. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0028] Please refer to Figures 1 to 8 The present application provides a technical solution: a grabbing and holding device based on blower impeller assembly, comprising a two-axis linear module 1, the slide table side of the two-axis linear module 1 is fixedly connected with a mounting frame 11, the lower end of the mounting frame 11 is fixedly installed with a bearing seat 12, the bearing seat 12 is installed with a rotating adjusting mechanism, the bearing seat 12 is composed of two circular plates spliced together, which facilitates the installation or disassembly of the rotating adjusting mechanism, the lower end of the rotating adjusting mechanism is fixedly installed with an annular upper cover 3, the lower end of the annular upper cover 3 is fixedly installed with an annular base 32, the annular upper cover 3 and the annular base 32 are installed with a clamping mechanism for grabbing the impeller;

[0029] The rotating adjusting mechanism drives the annular upper cover 3 and the annular base 32 to rotate and adjust, and then the clamping mechanism drives the impeller to rotate and adjust, so that the impeller is aligned with the pump shaft in the volute, and the key groove of the two is aligned, thereby ensuring the accurate installation of the impeller;

[0030] When the impeller is grabbed, the impeller is directly below the annular base 32, the outer side of the annular base 32 is provided with a wheel cover 5, the clamping mechanism supports and clamps the wheel cover 5 from the inner side of the wheel cover 5, the lower side of the wheel cover 5 is provided with a hub 52, a plurality of blades 51 are fixedly installed in an annular array between the hub 52 and the wheel cover 5, a tapered protruding portion is protrudingly arranged on the side surface of the hub 52, a plurality of negative pressure suction mechanisms are arranged in an annular array below the annular base 32, the negative pressure suction mechanisms are connected with the tapered protruding portion on the side surface of the hub 52, the hub 52 is suctioned and fixed by the negative pressure suction mechanism, and the wheel cover 5 is clamped and fixed by the clamping mechanism, so that the impeller can be stably carried, and the impeller can be accurately assembled; a plurality of transmission mechanisms are installed in an annular array in the annular base 32, the number of the transmission mechanisms is the same as that of the negative pressure suction mechanisms, and the transmission mechanisms are used for controlling the suction locking of the negative pressure suction mechanisms.

[0031] Please refer to Figure 1 and Figure 2 , the inner side of the bearing seat 12 is provided with a rotating groove 13, the bottom of the rotating groove 13 is provided with a circular through groove 14 downward, the rotating adjusting mechanism comprises a disc 2 rotatably installed in the rotating groove 13, the upper end of the disc 2 is fixedly connected with a circular shaft 21, the circular shaft 21 penetrates the bearing seat 12 upward and extends to the outside, the circular shaft 21 is rotatably connected with the bearing seat 12 through a bearing, the upper end of the circular shaft 21 is fixedly sleeved with a worm wheel 22, the upper end of the bearing seat 12 is fixedly connected with a support frame 23, the inner side of the support frame 23 is rotatably installed with a worm 24, both ends of the worm 24 are rotatably connected with the support frame 23 through bearings, the worm 24 is engaged with the worm wheel 22, the worm 24 is driven by the motor shaft of the first servo motor fixedly installed on the outer side surface of the support frame 23, one end of the motor shaft of the first servo motor is fixedly connected with the worm 24, the lower end of the disc 2 is fixedly connected with a plurality of fixing frames 25 in an annular shape, the lower end of the fixing frame 25 penetrates the through groove 14 downward and is fixedly connected with the annular upper cover 3, the plurality of fixing frames 25 are commonly installed on the upper end of the annular upper cover 3, and the plurality of fixing frames 25 are movably installed in the through groove 14.

[0032] When the impeller needs to be rotated and adjusted, the worm 24 is driven to rotate by the motor shaft of the first servo motor, the worm 24 drives the worm wheel 22 to rotate, the worm wheel 22 drives the disc 2 to rotate along the rotating groove 13 through the circular shaft 21, the disc 2 drives the plurality of fixing frames 25 to rotate synchronously when the disc 2 rotates, the annular upper cover 3 and the annular base 32 are driven to rotate through the plurality of fixing frames 25, the annular upper cover 3 and the annular base 32 drive the impeller to rotate through the clamping mechanism, so that the impeller is aligned with the key groove on the pump shaft, the impeller can be accurately assembled, the adjustment mode of the impeller is simple and convenient, and the working efficiency is greatly improved.

[0033] Please refer to Figure 3 , Figures 5 to 7The clamping mechanism includes a drive assembly and a clamping assembly. The bottom of the annular cover 3 is recessed upward to form an annular cavity 31. The drive assembly is installed in the annular cavity 31. The top of the annular base 32 has multiple shrinkage grooves 33 arranged in an annular array. The clamping assembly is installed in the annular base 32.

[0034] The drive assembly includes an annular drive plate 4 rotatably mounted in an annular cavity 31. The upper end of the annular drive plate 4 has multiple arc-shaped grooves 41 arranged in an annular array. The arc-shaped grooves 41 gradually bend closer to the axis of the annular drive plate 4. An internal gear ring 42 is fixedly connected to the inner side of the annular drive plate 4. A drive gear 43 is meshed on the inner side of the internal gear ring 42. The drive gear 43 is driven by the output shaft of a second servo motor fixedly mounted on the top of the annular cover 3. The output shaft of the second servo motor passes through the annular cover 3 and is fixedly connected to the drive gear 43. The output shaft is rotatably connected to the annular cover 3 through a bearing.

[0035] The clamping assembly includes multiple clamping claws 44 slidably mounted in a ring array on an annular base 32. The number of clamping claws 44 is the same as the number of contraction grooves 33 and the number of arc grooves 41. The clamping claws 44 are slidably mounted in adjacent contraction grooves 33. Both the clamping claws 44 and the contraction grooves 33 are fan-shaped, and the curvature of the clamping claws 44 and the contraction grooves 33 is the same. A slot 45 is provided at the end of the clamping claw 44 away from the annular base 32. The end of the clamping claw 44 with the slot 45 is engaged with the wheel cover 5. When the clamping claw 44 is engaged with the wheel cover 5, the position of the clamping claw 44 and the blade 51 is staggered, that is, the clamping claw 44 is between two adjacent blades 51, so as not to damage the blades 51. A drive post 46 is fixedly connected to the upper end of each clamping claw 44. The drive post 46 is slidably connected to the adjacent arc groove 41 and extends into the arc groove 41.

[0036] When it is necessary to grip the impeller, the mounting frame 11 is moved by the two-axis linear module 1. The mounting frame 11 moves the annular upper cover 3 through the bearing seat 12 and the rotary adjustment mechanism, thereby moving the clamping mechanism to move to the inside of the wheel cover 5 at the upper end of the impeller, so that the slot 45 is aligned with the wheel cover 5. At this time, the clamping mechanism is rotated by the rotary adjustment mechanism so that the clamping claw 44 is in the gap between the blades 51 on the impeller, preventing the clamping claw 44 from colliding with the blades 51 during the outward movement.

[0037] The output shaft of the second servo motor drives the drive gear 43 to rotate, the drive gear 43 drives the inner gear ring 42 to rotate, the inner gear ring 42 drives the annular drive plate 4 to rotate, and when the annular drive plate 4 rotates, the arc groove 41 on it pushes the drive column 46 to move. The drive column 46 drives the clamping claw 44 to slide along the shrinkage groove 33. By controlling the output shaft of the second servo motor to rotate forward or reverse, the clamping claw 44 slides outward or inward along the shrinkage groove 33.

[0038] When the plurality of clamping claws 44 move outward, the wheel cover 5 of the impeller is clamped and fixed by the plurality of clamping claws 44 cooperating, and when the plurality of clamping claws 44 move inward, the plurality of clamping claws 44 are separated from the wheel cover 5 of the impeller, thereby releasing the fixation of the wheel cover 5.

[0039] Please refer to Figures 3 to 8 The negative pressure suction mechanism comprises a fan-shaped negative pressure box 6 arranged below the annular base 32, the lower end of the fan-shaped negative pressure box 6 is an inclined curved surface, the upper end of the fan-shaped negative pressure box 6 is fixedly connected with a supporting vertical plate 62, the upper end of the supporting vertical plate 62 is fixedly connected with the annular base 32, an air storage cylinder 63 is arranged above the fan-shaped negative pressure box 6, a sealing cover 64 is fixedly installed at the upper end of the air storage cylinder 63, a plug rod 66 is inserted through the upper end of the sealing cover 64, the plug rod 66 is slidably connected with the sealing cover 64, the lower end of the plug rod 66 extends into the inner cavity of the air storage cylinder 63 and is fixedly connected with a piston head 67, the piston head 67 is slidably connected with the inner side wall of the air storage cylinder 63, a connecting pipe 65 is fixedly inserted at the lower end of the fan-shaped negative pressure box 6, and the two ends of the connecting pipe 65 are respectively communicated with the inner cavity of the fan-shaped negative pressure box 6 and the inner cavity of the air storage cylinder 63.

[0040] The bottom of the fan-shaped negative pressure box 6 is matched with the conical protruding portion on the side surface of the hub 52, and the lower end of the fan-shaped negative pressure box 6 is fixedly connected with a sealing gasket 61, which is tightly attached to the side surface of the conical protruding portion on the hub 52.

[0041] When the two-axis linear module 1 drives the clamping mechanism to move to the inside of the wheel cover 5 at the upper end of the impeller, the clamping groove 45 is aligned with the wheel cover 5, at this time, a plurality of negative pressure suction mechanisms are arranged in an annular array on the conical protruding portion on the side surface of the hub 52, and each sealing gasket 61 is in extrusion contact with the side surface of the conical protruding portion, so that the sealing gasket 61 is deformed to a certain extent, thereby sealingly connecting the fan-shaped negative pressure box 6 with the conical protruding portion on the side surface of the hub 52.

[0042] Then, the plug rod 66 drives the piston head 67 to move upward along the inner cavity of the air storage cylinder 63, so that the inner cavity of the air storage cylinder 63 forms a negative pressure, the gas in the inner cavity of the fan-shaped negative pressure box 6 is sucked away through the connecting pipe 65, so that the inner cavity of the fan-shaped negative pressure box 6 also forms a negative pressure, thereby firmly adsorbing the fan-shaped negative pressure box 6 on the side surface of the conical protruding portion, adsorbing and locking the conical protruding portion through the cooperation of a plurality of fan-shaped negative pressure boxes 6, and adsorbing and locking the hub 52 through the cooperation of a plurality of negative pressure suction mechanisms.

[0043] When the impeller is locked, the two-axis linear module 1 drives the grabbing device to move, at this time, the impeller can be firmly grabbed and locked through the cooperation of the clamping mechanism and the negative pressure suction mechanism, so as to prevent the impeller from shaking and ensure the stability of the impeller carrying, and ensure that the impeller can be accurately assembled.

[0044] When the plug rod 66 moves downward, the plug rod 66 drives the piston head 67 to move downward along the inner cavity of the gas cylinder 63, pushes the gas in the gas cylinder 63 into the fan-shaped negative pressure box 6 through the piston head 67, weakens or eliminates the negative pressure of the fan-shaped negative pressure box 6, so that the negative pressure adsorption mechanism loosens the adsorption locking of the hub 52.

[0045] Please refer to Figure 6 and Figure 8 , the upper end of the annular base 32 is provided with a plurality of circular grooves 34 in an annular array, the number of the circular grooves 34 is the same as that of the negative pressure adsorption mechanisms, the transmission mechanism comprises an inner threaded sleeve 7 rotatably installed in the circular groove 34, an outer gear ring 71 fixedly sleeved on the outer side of the inner threaded sleeve 7, a threaded rod 72 threadedly installed on the inner side of the inner threaded sleeve 7, a lifting frame 73 fixedly connected to the lower end of the threaded rod 72, and a guide plate 74 penetratingly inserted into the upper end of the lifting frame 73, the upper end of the guide plate 74 being fixedly connected with the annular base 32, the lifting frame 73 being in sliding connection with the guide plate 74, and the lower end of the lifting frame 73 being fixedly connected with the upper end of the plug rod 66.

[0046] The upper end of the inner threaded sleeve 7 penetrates through the annular cavity 31 and is rotatably connected with the upper end of the annular upper cover 3, the outer gear ring 71 is installed in the annular cavity 31, the outer gear ring 71 is in meshing connection with the inner gear ring 42, and the upper and lower sides of the outer gear ring 71 are in rotational contact with the top plate of the annular cavity 31 and the top plate of the annular base 32, respectively.

[0047] In the process that the driving assembly drives the clamping assembly to clamp the wheel cover 5, at this time, the inner gear ring 42 rotates, the inner gear ring 42 drives the plurality of outer gear rings 71 to synchronously rotate at the same time, the plurality of outer gear rings 71 drive the plurality of inner threaded sleeves 7 to synchronously rotate, the inner threaded sleeves 7 drive the threaded rods 72 on the inner sides of the inner threaded sleeves 7 to move upward or downward when the inner threaded sleeves 7 rotate, the threaded rods 72 drive the lifting frames 73 to move upward or downward, the lifting frames 73 stably slide upward or downward along the guide plates 74, and the lifting frames 73 drive the plug rods 66 to move upward or downward, so that the negative pressure adsorption mechanisms adsorb or loosen the locking of the hub 52.

[0048] Working principle: when it is necessary to grab the impeller, the mounting frame 11 is driven by the two-axis linear module 1 to move to adjust the position of the grabbing device, so that the clamping mechanism moves to the inner side of the wheel cover 5 at the upper end of the impeller, at this time, the clamping mechanism is driven by the rotary adjusting mechanism to rotate, so that the clamping jaw 44 is located at the gap between the upper blades 51 of the impeller, preventing the clamping jaw 44 from colliding with the blades 51 in the process of moving outward;

[0049] After the adjustment is completed, the two-axis linear module 1 continues to operate, the card slot 45 is aligned with the wheel cover 5, and the multiple negative pressure suction mechanisms are arranged in an annular array on the conical protruding portion on the side of the wheel hub 52, so that the sealing gasket 61 is deformed to a certain extent, thereby enabling the fan-shaped negative pressure box 6 to be sealingly connected with the conical protruding portion on the side of the wheel hub 52.

[0050] The output shaft of the second servo motor drives the driving gear 43 to rotate, the driving gear 43 drives the internal gear ring 42 to rotate, the internal gear ring 42 drives the annular driving plate 4 and the multiple external gear rings 71 to rotate, when the annular driving plate 4 rotates, the arc-shaped slot 41 thereon pushes the driving column 46 to move, so that the clamping claws 44 extend outward along the contraction slot 33 and are clamped with the wheel cover 5, and the multiple clamping claws 44 cooperate to clamp and fix the wheel cover 5 of the impeller;

[0051] When the external gear ring 71 rotates, the internal threaded sleeve 7 rotates synchronously, when the internal threaded sleeve 7 rotates, the threaded rod 72 inside the internal threaded sleeve 7 moves upward, the threaded rod 72 drives the lifting frame 73 to move upward, the lifting frame 73 drives the plug rod 66 to move upward, the plug rod 66 drives the piston head 67 to move upward along the inner cavity of the gas cylinder 63, the gas in the inner cavity of the fan-shaped negative pressure box 6 is drawn away through the connecting pipe 65, so that the inner cavity of the fan-shaped negative pressure box 6 also forms negative pressure, and then the fan-shaped negative pressure box 6 is firmly adsorbed on the side of the conical protruding portion, and the multiple fan-shaped negative pressure boxes 6 cooperate to adsorb and lock the conical protruding portion;

[0052] The multiple negative pressure suction mechanisms adsorb and lock the wheel hub 52, the clamping mechanism clamps and fixes the wheel cover 5, and the clamping mechanism and the multiple negative pressure suction mechanisms cooperate to clamp and lock the impeller, so that the impeller can be stably transported.

[0053] The two-axis linear module 1 drives the grabbing device to move, the grabbing device drives the impeller to move above the pump shaft in the volute, the mounting hole of the wheel hub 52 is aligned with the key groove on the pump shaft, the rotating adjustment mechanism is driven to rotate, so that the impeller rotates, the key groove in the mounting hole of the wheel hub 52 is aligned with the key groove on the pump shaft, and then the two-axis linear module 1 drives the grabbing device to move downward, so that the impeller moves downward and is connected with the pump shaft.

[0054] The clamping mechanism and the multiple negative pressure suction mechanisms cooperate to firmly clamp and fix the impeller, and the rotating adjustment mechanism can conveniently rotate and adjust the impeller, so that the impeller is accurately connected with the pump shaft, and the working efficiency is greatly improved.

[0055] After the impeller is assembled, the output shaft of the second servo motor is reversely rotated, the driving gear 43 drives the inner gear ring 42 to reversely rotate, the inner gear ring 42 drives the annular driving plate 4 and the plurality of outer gear rings 71 to reversely rotate, the clamping claws 44 are retracted into the contraction grooves 33, and thus the plurality of clamping claws 44 are loosened from the clamping and fixing of the wheel cover 5;

[0056] Meanwhile, the plug rod 66 drives the piston head 67 to move downward along the inner cavity of the gas cylinder 63, the gas in the gas cylinder 63 is pushed into the fan-shaped negative pressure box 6 through the piston head 67, the negative pressure of the fan-shaped negative pressure box 6 is weakened or disappears, and thus the negative pressure adsorption mechanism is loosened from the adsorption and locking of the wheel hub 52; when the clamping mechanism and the negative pressure adsorption mechanism are both loosened from the clamping and locking of the impeller, the two-axis linear module 1 drives the grabbing device to move away, and the next set of impellers and volutes are placed, so that the next set of impellers and volutes are assembled; in order to improve the assembly efficiency and the application range, the two-axis linear module 1 is replaced by a three-axis linear module, so that the moving range of the grabbing device is improved.

[0057] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gripping holding device based on blower impeller assembly, comprising a two-axis linear module (1), characterized in that: The two-axis linear module (1) is fixedly connected with a mounting frame (11) on the side of the sliding table, a bearing seat (12) is fixedly installed at the lower end of the mounting frame (11), a rotary adjusting mechanism is installed on the bearing seat (12), an annular upper cover (3) is fixedly installed at the lower end of the rotary adjusting mechanism, an annular base (32) is fixedly installed at the lower end of the annular upper cover (3), and a clamping mechanism for grabbing the impeller is installed in the annular upper cover (3) and the annular base (32). A wheel cover (5) is arranged on the outer side of the annular base (32), a hub (52) is arranged below the wheel cover (5), a plurality of blades (51) are fixedly installed in an annular array between the wheel cover (5) and the hub (52), a conical protruding portion is protrudingly arranged on the side of the hub (52), a plurality of negative pressure suction mechanisms are arranged in an annular array below the annular base (32), the negative pressure suction mechanisms are connected with the conical protruding portion on the side of the hub (52), and a plurality of transmission mechanisms are installed in an annular array in the annular base (32), and the transmission mechanisms are used for controlling the suction locking of the negative pressure suction mechanisms. The negative pressure suction mechanism comprises a fan-shaped negative pressure box (6) arranged below the annular base (32), the lower end of the fan-shaped negative pressure box (6) is an inclined curved surface, a supporting vertical plate (62) is fixedly connected to the upper end of the fan-shaped negative pressure box (6), the upper end of the supporting vertical plate (62) is fixedly connected with the annular base (32), a gas storage cylinder (63) is arranged above the fan-shaped negative pressure box (6), a sealing cover (64) is fixedly installed at the upper end of the gas storage cylinder (63), a plug rod (66) is inserted through the upper end of the sealing cover (64), the lower end of the plug rod (66) extends into the inner cavity of the gas storage cylinder (63) and is fixedly connected with a piston head (67), a connecting pipe (65) is fixedly inserted at the lower end of the gas storage cylinder (63), and the lower end of the connecting pipe (65) is fixedly inserted into the upper end of the fan-shaped negative pressure box (6). The bottom of the fan-shaped negative pressure box (6) is matched with the conical protruding portion on the side of the hub (52), a sealing gasket (61) is fixedly connected to the lower end of the fan-shaped negative pressure box (6), and the sealing gasket (61) is tightly attached to the side of the conical protruding portion on the hub (52).

2. A gripping and holding device based on the assembly of a blower impeller according to claim 1, characterized in that: The inner side of the bearing seat (12) is provided with a rotating groove (13), and the bottom of the rotating groove (13) is provided with a circular through groove (14) downwardly, the rotating adjusting mechanism comprises a disc (2) rotatably installed in the rotating groove (13), the upper end of the disc (2) is fixedly connected with a circular shaft (21), the circular shaft (21) penetrates the bearing seat (12) upwardly and extends to the outside, the upper end of the circular shaft (21) is fixedly sleeved with a worm wheel (22), the upper end of the bearing seat (12) is fixedly connected with a support frame (23), the inner side of the support frame (23) is rotatably installed with a worm (24), the worm (24) is engaged with the worm wheel (22), the worm (24) is driven by the motor shaft of the first servo motor fixedly installed on the outer side of the support frame (23), the lower end of the disc (2) is fixedly connected with a plurality of fixing frames (25) in a ring shape, the lower end of the fixing frame (25) penetrates the through groove (14) downwardly and is fixedly connected with the annular upper cover (3), and the plurality of fixing frames (25) are jointly installed on the upper end of the annular upper cover (3).

3. A gripping and holding device based on assembly of a blower impeller according to claim 1, characterized in that: The clamping mechanism comprises a driving assembly and a clamping assembly, the bottom of the annular upper cover (3) is recessed upwardly to form an annular cavity (31), the driving assembly is installed in the annular cavity (31), and the top of the annular base (32) is annularly arrayed with a plurality of contraction grooves (33).

4. A gripping and holding device based on the assembly of a blower impeller according to claim 3, characterized in that: The driving assembly comprises an annular driving plate (4) rotatably installed in the annular cavity (31), the upper end of the annular driving plate (4) is annularly arrayed with a plurality of arc-shaped grooves (41), the inner side of the annular driving plate (4) is fixedly connected with an internal gear ring (42), the inner side of the internal gear ring (42) is engaged with a driving gear (43), and the driving gear (43) is driven by the output shaft of the second servo motor fixedly installed on the top of the annular upper cover (3).

5. A gripping and holding device based on the assembly of a blower impeller according to claim 4, characterized in that: The clamping assembly comprises a plurality of clamping claws (44) slidably installed on the annular base (32) in a ring shape, the clamping claw (44) is slidably installed in the adjacent contraction groove (33), the end of the clamping claw (44) away from the annular base (32) is provided with a clamping groove (45), the end of the clamping claw (44) provided with the clamping groove (45) is clamped with the wheel cover (5), the upper end of each clamping claw (44) is fixedly connected with a driving column (46), and the driving column (46) is slidably connected with the adjacent arc-shaped groove (41).

6. A gripping and holding device based on assembly of a blower impeller according to claim 1, characterized in that: The upper end of the annular base (32) is annularly arrayed with a plurality of circular grooves (34), the transmission mechanism comprises an internal thread sleeve (7) rotatably installed in the circular groove (34), the outer side of the internal thread sleeve (7) is fixedly sleeved with an external gear ring (71), the inner side of the internal thread sleeve (7) is threadedly installed with a threaded rod (72), the lower end of the threaded rod (72) is fixedly connected with a lifting frame (73), the lifting frame (73) is inserted with a guide plate (74) penetratingly, the upper end of the guide plate (74) is fixedly connected with the annular base (32), and the lower end of the lifting frame (73) is fixedly connected with the upper end of the plug rod (66).

7. A gripping and holding device based on the assembly of a blower impeller according to claim 6, characterized in that: The upper end of the female threaded sleeve (7) penetrates through the annular cavity (31) and is rotationally connected with the upper end of the annular upper cover (3), and the external gear ring (71) is installed in the annular cavity (31) and meshes with the internal gear ring (42).

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