An impeller assembling device capable of automatically calibrating an angle and a method thereof

Abstract

The application discloses a kind of impeller assembly device and method that can be automatically calibrated angle, device includes workbench, the top of the workbench is fixedly connected with installation shaft feed base.By the above mode, in the process of installation shaft rising, by pressing piece and pressing ring, the impeller is positioned, prevent the impeller from being pushed out, at this time, the clamping block is withdrawn from the hole wall of the impeller under the contraction of sliding rod and lifting spring, then the key of installation shaft is fully connected with the keyway of impeller, realize the operation of installation shaft and impeller automatic adjustment angle and installation, when installation shaft and impeller are assembled, discharge through discharge chute, start second cylinder to let semicircle ring, stop block and lack of ring reset, start first cylinder to let driving shaft, shaft disc and wheel disc reset, realize assembly cycle, assembly is simple, and efficiency is higher.

Description

Technical Field

[0001] This invention relates to the field of chemical pump technology, and specifically to an impeller assembly device and method with automatic angle calibration. Background Technology

[0002] When assembling the impeller, the impeller and the mounting shaft need to be installed together. To ensure stability, the impeller and the mounting shaft are connected by a key.

[0003] Chinese patent CN114871739B discloses an automatic assembly device for a water pump rotor, including an impeller feeding mechanism, a rotor feeding mechanism, a plug-in assembly mechanism for automatically assembling the rotor and impeller, and a discharge box for storing the assembled material. The impeller feeding mechanism, rotor feeding mechanism, and discharge box are all located on the side of the plug-in assembly mechanism. The impeller is then pushed and plugged onto the rotor through the plug-in assembly mechanism, thereby completing the automated assembly of the impeller and rotor.

[0004] However, when installing the impeller in the existing device, it is necessary to first align the angle between the impeller and the mounting shaft, and then continue to press and assemble the impeller using a pressing structure. The impeller assembly requires manual adjustment of the angle, which is troublesome and results in low assembly efficiency.

[0005] Based on this, the present invention designs an impeller assembly device and method that can automatically calibrate the angle to solve the above problems. Summary of the Invention

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an impeller assembly device and method that can automatically calibrate the angle.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] An impeller assembly device with automatic angle calibration includes a worktable, a mounting shaft feed base fixedly connected to the top of the worktable, an impeller feed platform fixedly connected to the right side of the mounting shaft feed base, and a discharge chute provided on the impeller feed platform.

[0009] The worktable is connected to a drive shaft via a first drive assembly. A shaft disc is fixedly connected to the lower part of the outer wall of the drive shaft, and a wheel disc is fixedly connected to the upper part of the outer wall of the drive shaft.

[0010] A side column is fixedly connected to the middle right side of the mounting shaft feed base, and the side column is connected to a second slider through a second drive assembly;

[0011] A semi-circular ring is fixedly connected to the lower left side of the outer wall of the second slider, a stop block is fixedly connected to the upper left side of the outer wall of the second slider, an extension rod is fixedly connected to the top left side of the outer wall of the second slider, and a missing circular ring is fixedly connected to the top of the extension rod.

[0012] The top of both the missing ring and the wheel is provided with a pressing component for limiting the impeller;

[0013] The top of the workbench is provided with a lifting assembly for lifting the mounting shaft.

[0014] The top of the impeller feeding platform is fixedly connected to a gantry frame, and the gantry frame is connected to a sliding frame through a third drive assembly;

[0015] A sliding limit rod slides through the sliding frame, and a shaft plate is fixedly connected to the bottom end of the sliding limit rod. A locking block is connected to the right side of the outer wall of the shaft plate through an elastic component. The locking block slides and fits against the hole wall of the impeller.

[0016] The sliding limit bar is connected to the sliding frame via a lifting and retraction assembly.

[0017] Furthermore, the first drive assembly includes a first cylinder, a first slide rail, a first slider, and a motor. The first cylinder is fixedly connected to the top of the worktable, and the output end of the first cylinder is fixedly connected to the outer wall of the first slider. The first slide rail is fixedly connected to the top of the worktable, the first slider is slidably connected to the first slide rail, and the motor is fixedly connected to the top of the first slider.

[0018] Furthermore, the drive shaft is fixedly connected to the output shaft of the motor.

[0019] Furthermore, the second drive assembly includes a second cylinder and a second slide rail. The output end of the second cylinder is fixedly connected to the outer wall of the second slider. The second cylinder is fixedly connected to the top of the side column, and the second slide rail is fixedly connected to the top left side of the side column.

[0020] The second slider is slidably connected to the second slide rail.

[0021] Furthermore, the pressing assembly includes a pressing plate and a pressing ring, wherein the pressing plate is fixedly connected to the outer edge of the missing ring, and the pressing ring is fixedly connected to the top of the wheel;

[0022] The bottom surfaces of both the pressing plate and the pressing ring are in contact with and pressed against the outer edge of the impeller.

[0023] Furthermore, the lifting assembly includes a lifting cylinder and a lifting block. The output end of the lifting cylinder is fixedly connected to the bottom of the lifting block. The lifting cylinder is fixedly connected to the top of the worktable. The lifting block slides through the inner bottom of the mounting shaft feed base.

[0024] The top of the lifting block contacts the bottom of the mounting shaft.

[0025] Furthermore, the third drive assembly includes a third cylinder, a third slide rail, a fourth cylinder, and a push rod. The third cylinder is fixedly connected to the top of the gantry frame, and the output end of the third cylinder is fixedly connected to the top of the slide frame. The third slide rail is fixedly connected to the front side of the outer wall of the gantry frame. The fourth cylinder is fixedly connected to the bottom of the slide frame, and the slide frame is slidably connected to the third slide rail. The push rod is fixedly connected to the output end of the fourth cylinder.

[0026] Furthermore, the elastic component includes a spring rod, a spring sheet, and a retraction spring. There are two spring rods. The spring rods are fixedly connected to the right side of the outer wall of the shaft plate. The spring sheet is slidably connected to the spring rod. One end of the retraction spring is fixed to the outer wall of the spring sheet, and the other end of the retraction spring is fixedly connected to the right side of the outer wall of the shaft plate.

[0027] The left end of the push rod contacts the upper part of the right side of the outer wall of the spring piece, and the bottom end of the spring piece is fixedly connected to the top end of the locking block.

[0028] Furthermore, the lifting and retracting assembly includes a sliding rod and a lifting spring. The sliding rod is fixedly connected to the left side of the sliding limit rod and slides through the sliding frame. The lifting spring is sleeved on the outer wall of the sliding rod, with one end of the lifting spring fixed to the bottom of the sliding frame and the other end of the lifting spring fixedly connected to the bottom of the sliding rod.

[0029] To better achieve the objectives of this invention, the present invention also provides an assembly method for an impeller assembly device capable of automatically calibrating angles, comprising the following steps:

[0030] Step 1: The mounting shaft and impeller are transported to the processing position through the input end of the mounting shaft feed base and the impeller feed platform;

[0031] Step 2: The second cylinder pushes the second slider to move, which in turn moves the semi-circular ring, the stop block, and the missing ring, respectively limiting the mounting shaft and impeller. Then, the first cylinder pushes the first slider to move, which in turn moves the motor, causing the drive shaft to move. This brings the shaft disc and wheel disc into contact with the mounting shaft and impeller. The motor then starts, causing the drive shaft to rotate, which in turn rotates the shaft disc and wheel disc, and then the mounting shaft and impeller. When the mounting shaft rotates to a certain angle, it will be blocked by the stop block, thus limiting the mounting shaft assembly angle.

[0032] Step 3: The sliding frame is lowered by the third cylinder, and the spring is moved by the fourth cylinder, causing the contraction spring to contract. This allows the locking block to enter the inner wall of the impeller shaft hole. When the impeller rotates to a certain angle, the locking block will protrude to the right under the action of the contraction spring and lock with the keyway of the impeller, thus limiting the assembly angle of the impeller. At this time, the lifting cylinder is activated to drive the lifting block to rise. The lifting block will drive the mounting shaft to move upward. The key of the mounting shaft will cooperate with the keyway of the impeller. The mounting shaft gradually rises and pushes out the locking block. During the process of the mounting shaft rising, the pressing plate and pressing ring limit the impeller to prevent the impeller from being pushed out.

[0033] Step 4: At this point, the locking block retracts from the impeller hole wall under the contraction of the sliding rod and the lifting spring. Then, the key of the mounting shaft is fully engaged with the keyway of the impeller, realizing the automatic adjustment of the angle between the mounting shaft and the impeller and the installation operation.

[0034] Step 5: After the installation shaft and impeller are assembled, start the second cylinder to reset the semi-circular ring, stop block and missing ring, and start the first cylinder to reset the drive shaft, shaft disc and wheel disc, thus completing the assembly cycle.

[0035] The present invention has the following technical effects:

[0036] 1. During the upward movement of the mounting shaft, the present invention limits the impeller by pressing plates and pressing rings to prevent the impeller from being pushed out. At this time, the locking block exits the hole wall of the impeller under the contraction of the sliding rod and the lifting spring. Then, the key of the mounting shaft and the keyway of the impeller are fully engaged, realizing the automatic adjustment and installation of the mounting shaft and impeller. After the mounting shaft and impeller are assembled, the material is discharged through the discharge chute. The second cylinder is activated to reset the semi-circular ring, the stop block and the missing ring. The first cylinder is activated to reset the drive shaft, the shaft disc and the wheel disc, realizing the assembly cycle. The assembly is simple and efficient. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0038] Figure 1 This invention provides a three-dimensional impeller assembly device with an automatically calibrated angle. Figure 1 ;

[0039] Figure 2 This invention provides a three-dimensional impeller assembly device with an automatically calibrated angle. Figure 2 ;

[0040] Figure 3This is a front view of an impeller assembly device with automatically calibrated angles according to the present invention;

[0041] Figure 4 This is a schematic diagram of the first drive assembly and the installation structure of the drive shaft, shaft disk, wheel disk and pressing ring of an impeller assembly device with automatic angle calibration according to the present invention.

[0042] Figure 5 This is a schematic diagram showing the connection between the lifting assembly and the mounting shaft feed base;

[0043] Figure 6 A schematic diagram showing the connection structure between the second drive assembly and the semi-circular ring, extension rod, missing circular ring, and stop block;

[0044] Figure 7 A schematic diagram showing the connection structure between the third drive assembly and the shaft plate, locking block, spring rod, spring sheet, retraction spring, and sliding limit rod;

[0045] Figure 8 This is a schematic diagram of the connection structure between the lifting and retracting assembly and the shaft plate, locking block, spring rod, spring sheet, retraction spring, and sliding limit rod.

[0046] The labels in the diagram represent:

[0047] 1. Workbench; 2. Mounting shaft feed base; 3. Impeller feed platform; 31. Discharge chute; 4. First drive assembly; 41. First cylinder; 42. First slide rail; 43. First slider; 44. Motor; 5. Drive shaft; 51. Shaft disc; 52. Wheel disc; 6. Side column; 7. Second drive assembly; 71. Second cylinder; 72. Second slide rail; 73. Second slider; 8. Semicircular ring; 9. Extension rod; 91. Missing circular ring; 10. Stop block; 11. Pressing assembly; 111. Pressing... 112. Pressing ring; 12. Lifting assembly; 121. Lifting cylinder; 122. Lifting block; 13. Gantry frame; 14. Sliding frame; 15. Third drive assembly; 151. Third cylinder; 152. Third slide rail; 153. Fourth cylinder; 154. Push rod; 16. Shaft plate; 161. Locking block; 162. Spring rod; 163. Spring piece; 164. Retraction spring; 165. Sliding limit rod; 17. Lifting and retraction assembly; 171. Sliding rod; 172. Lifting spring. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0049] The present invention will be further described below with reference to embodiments.

[0050] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0051] Example 1

[0052] Please refer to the instruction manual appendix. Figure 1-8 An impeller assembly device capable of automatically calibrating angles includes a worktable 1;

[0053] The top of the workbench 1 is fixedly connected to the mounting shaft feed base 2, and the right side of the mounting shaft feed base 2 is fixedly connected to the impeller feed platform 3, which has a discharge chute 31.

[0054] The workbench 1 is connected to a drive shaft 5 via a first drive assembly 4. A shaft disk 51 is fixedly connected to the lower part of the outer wall of the drive shaft 5, and a wheel disk 52 is fixedly connected to the upper part of the outer wall of the drive shaft 5.

[0055] A side column 6 is fixedly connected to the middle right side of the mounting shaft feed base 2, and the side column 6 is connected to a second slider 73 through the second drive assembly 7.

[0056] A semi-circular ring 8 is fixedly connected to the lower left side of the outer wall of the second slider 73, a stop block 10 is fixedly connected to the upper left side of the outer wall of the second slider 73, an extension rod 9 is fixedly connected to the top left side of the outer wall of the second slider 73, and a missing circular ring 91 is fixedly connected to the top of the extension rod 9.

[0057] Both the top of the missing ring 91 and the wheel 52 are provided with a pressing component 11 for limiting the impeller;

[0058] The top of the worktable 1 is provided with a lifting assembly 12 for lifting the mounting shaft;

[0059] A gantry frame 13 is fixedly connected to the top of the impeller feeding platform 3, and a sliding frame 14 is connected to the gantry frame 13 through the third drive assembly 15;

[0060] A sliding limit rod 165 slides through the sliding frame 14. A shaft plate 16 is fixedly connected to the bottom end of the sliding limit rod 165. A locking block 161 is connected to the right side of the outer wall of the shaft plate 16 through an elastic component. The locking block 161 slides and fits against the hole wall of the impeller.

[0061] The sliding limit bar 165 is connected to the sliding frame 14 via the lifting and retraction assembly 17.

[0062] In use, the height of the mounting shaft feeding base 2 is lower than the height of the impeller feeding platform 3, so the mounting shaft will not be obstructed during feeding. First, the impeller and the mounting shaft are transported to the mounting shaft feeding base 2 and the impeller feeding platform 3 through the conveying end. When the impeller and the mounting shaft are in the appropriate position, the second drive assembly 7 is activated to drive the semi-circular ring 8 to limit the mounting shaft. The second drive assembly 7 drives the missing circular ring 91 to limit the impeller. Then, the first drive assembly 4 is activated to drive the shaft disk 51 and the wheel disk 52 to adhere to the side walls of the mounting shaft and the impeller and drive the mounting shaft and the impeller to rotate. When the mounting shaft rotates to a certain angle, due to the obstruction of the stop block 10, the mounting shaft will be at the loading angle, and the impeller will be at the loading angle due to the locking block 161. At this time, the mounting shaft and the impeller are connected and installed by the lifting assembly 12, thereby realizing rapid installation under automatic alignment angle.

[0063] Example 2

[0064] like Figure 1-8 As shown, in a preferred embodiment of the present invention, the first drive assembly 4 includes a first cylinder 41, a first slide rail 42, a first slider 43, and a motor 44. The first cylinder 41 is fixedly connected to the top of the worktable 1, the output end of the first cylinder 41 is fixedly connected to the outer wall of the first slider 43, the first slide rail 42 is fixedly connected to the top of the worktable 1, the first slider 43 is slidably connected to the first slide rail 42, and the motor 44 is fixedly connected to the top of the first slider 43.

[0065] Drive shaft 5 is fixedly connected to the output shaft of motor 44;

[0066] The second drive assembly 7 includes a second cylinder 71 and a second slide rail 72. The output end of the second cylinder 71 is fixedly connected to the outer wall of the second slider 73. The second cylinder 71 is fixedly connected to the top of the side column 6, and the second slide rail 72 is fixedly connected to the top left side of the side column 6.

[0067] The second slider 73 is slidably connected to the second slide rail 72;

[0068] The pressing assembly 11 includes a pressing plate 111 and a pressing ring 112. The pressing plate 111 is fixedly connected to the outer edge of the missing ring 91, and the pressing ring 112 is fixedly connected to the top of the wheel 52.

[0069] The bottom surfaces of both the pressing plate 111 and the pressing ring 112 are in contact with the outer edge of the impeller and pressed down.

[0070] The lifting assembly 12 includes a lifting cylinder 121 and a lifting block 122. The output end of the lifting cylinder 121 is fixedly connected to the bottom of the lifting block 122. The lifting cylinder 121 is fixedly connected to the top of the worktable 1. The lifting block 122 slides through the inner bottom of the mounting shaft feed base 2.

[0071] The top of the lifting block 122 contacts the bottom of the mounting shaft;

[0072] The third drive assembly 15 includes a third cylinder 151, a third slide rail 152, a fourth cylinder 153, and a push rod 154. The third cylinder 151 is fixedly connected to the top of the gantry frame 13, and the output end of the third cylinder 151 is fixedly connected to the top of the sliding frame 14. The third slide rail 152 is fixedly connected to the front side of the outer wall of the gantry frame 13. The fourth cylinder 153 is fixedly connected to the bottom of the sliding frame 14. The sliding frame 14 is slidably connected to the third slide rail 152. The push rod 154 is fixedly connected to the output end of the fourth cylinder 153.

[0073] The elastic component includes a spring rod 162, a spring piece 163, and a compression spring 164. There are two spring rods 162. The spring rods 162 are fixedly connected to the right side of the outer wall of the shaft plate 16. The spring piece 163 is slidably connected to the spring rod 162. One end of the compression spring 164 is fixed to the outer wall of the spring piece 163, and the other end of the compression spring 164 is fixedly connected to the right side of the outer wall of the shaft plate 16.

[0074] The left end of the push rod 154 contacts the upper part of the right side of the outer wall of the spring piece 163, and the bottom end of the spring piece 163 is fixedly connected to the top end of the locking block 161.

[0075] The left end of the push rod 154 contacts the upper part of the right side of the outer wall of the spring 163;

[0076] The lifting and retraction assembly 17 includes a sliding rod 171 and a lifting spring 172. The sliding rod 171 is fixedly connected to the left side of the sliding limit rod 165. The sliding rod 171 slides through the sliding frame 14. The lifting spring 172 is sleeved on the outer wall of the sliding rod 171. One end of the lifting spring 172 is fixed to the bottom of the sliding frame 14, and the other end of the lifting spring 172 is fixedly connected to the bottom of the sliding rod 171.

[0077] In use, the input ends of the mounting shaft feeding base 2 and the impeller feeding platform 3 are configured as roller conveyors. The roller conveyors transport the mounting shaft and impeller to the processing position. The mounting shaft and impeller are transported to the processing position via the input ends of the mounting shaft feeding base 2 and the impeller feeding platform 3. The second cylinder 71 pushes the second slider 73 to move, which in turn moves the semi-circular ring 8, the stop block 10, and the missing circular ring 91, respectively limiting the mounting shaft and impeller. Then, the first cylinder 41 pushes the first slider 43 to move, which in turn moves the motor 44, causing the drive shaft to move. 5. The drive shaft moves, causing the shaft disc 51 and wheel disc 52 to contact the mounting shaft and impeller. Then, the motor 44 starts, driving the drive shaft 5 to rotate, which in turn drives the shaft disc 51 and wheel disc 52 to rotate, and then drives the mounting shaft and impeller to rotate. When the mounting shaft rotates to a certain angle, the key of the mounting shaft will contact and be blocked by the stop block 10, thus fixing the mounting shaft at a certain angle, thereby limiting the mounting shaft assembly angle. The third cylinder 151 drives the sliding frame 14 to descend, and the fourth cylinder 153 pushes the spring 163 to retract, allowing the locking block 161 to enter the shaft hole of the impeller. On the inner wall, the third cylinder 151 retracts, the spring 163 resets, causing the locking block 161 to reset, and then drives the impeller to rotate. When the impeller rotates to a certain angle, the locking block 161 will protrude to the right under the action of the contraction spring 164 and lock with the keyway of the impeller, thereby limiting the assembly angle of the impeller. At this time, the lifting cylinder 121 is activated to drive the lifting block 122 to rise. The lifting block 122 will drive the mounting shaft to move upward. The key of the mounting shaft will cooperate with the keyway of the impeller. The mounting shaft gradually rises and pushes out the locking block 161. During the process of the mounting shaft rising, the pressing plate 111 is pressed. The pressing ring 112 limits the impeller to prevent it from being pushed out. At this time, the locking block 161 exits the hole wall of the impeller under the contraction of the sliding rod 171 and the lifting spring 172. Then, the key of the mounting shaft is fully engaged with the keyway of the impeller, realizing the automatic adjustment of the angle between the mounting shaft and the impeller and the installation operation. After the mounting shaft and the impeller are assembled, the material is discharged through the discharge chute 31. The second cylinder 71 is started to reset the semi-circular ring 8, the stop block 10 and the missing ring 91. The first cylinder 41 is started to reset the drive shaft 5, the shaft disk 51 and the wheel disk 52, realizing the assembly cycle. The assembly is simple and the efficiency is high.

[0078] Example 3

[0079] like Figure 1-8 As shown, to better achieve the objectives of this invention, the present invention also provides an assembly method for an impeller assembly device capable of automatically calibrating angles, comprising the following steps:

[0080] Step 1: The mounting shaft and impeller are transported to the processing position through the input ends of the mounting shaft feed base 2 and the impeller feed platform 3;

[0081] Step 2: The second cylinder 71 pushes the second slider 73 to move, which in turn moves the semi-circular ring 8, the stop block 10, and the missing circular ring 91 to limit the mounting shaft and impeller respectively. Then, the first cylinder 41 pushes the first slider 43 to move, which in turn moves the motor 44, causing the drive shaft 5 to move. This makes the shaft disc 51 and the wheel disc 52 contact the mounting shaft and impeller. Then, the motor 44 starts and drives the drive shaft 5 to rotate, which in turn drives the shaft disc 51 and the wheel disc 52 to rotate, which in turn drives the mounting shaft and impeller to rotate. When the mounting shaft rotates to a certain angle, it will be blocked by the stop block 10, thus limiting the mounting shaft assembly angle.

[0082] Step 3: The sliding frame 14 is lowered by the third cylinder 151, and the spring 163 is moved by the fourth cylinder 153, causing the contraction spring 164 to contract, so that the locking block 161 can enter the inner wall of the impeller shaft hole. When the impeller rotates to a certain angle, the locking block 161 will protrude to the right under the action of the contraction spring 164 and lock with the keyway of the impeller, thereby limiting the assembly angle of the impeller. At this time, the lifting cylinder 121 is activated to drive the lifting block 122 to rise. The lifting block 122 will drive the mounting shaft to move upward. The key of the mounting shaft will cooperate with the keyway of the impeller. The mounting shaft gradually rises and pushes out the locking block 161. During the process of the mounting shaft rising, the pressing plate 111 and the pressing ring 112 limit the impeller to prevent the impeller from being pushed out.

[0083] Step 4: At this time, the locking block 161 is disengaged from the impeller hole wall under the contraction of the sliding rod 171 and the lifting spring 172. Then, the key of the mounting shaft is fully engaged with the keyway of the impeller, realizing the operation of automatically adjusting the angle of the mounting shaft and the impeller and installing it.

[0084] Step 5: After the installation shaft and impeller are assembled, start the second cylinder 71 to reset the semi-circular ring 8, the stop block 10 and the missing ring 91, and start the first cylinder 41 to reset the drive shaft 5, the shaft disc 51 and the wheel disc 52, thus completing the assembly cycle.

[0085] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An impeller assembly device capable of automatically calibrating angles, comprising a worktable (1), characterized in that: The top of the workbench (1) is fixedly connected to a mounting shaft feed base (2), and the right side of the mounting shaft feed base (2) is fixedly connected to an impeller feed platform (3), and a discharge chute (31) is provided on the impeller feed platform (3). The workbench (1) is connected to a drive shaft (5) via a first drive assembly (4). A shaft disc (51) is fixedly connected to the lower part of the outer wall of the drive shaft (5), and a wheel disc (52) is fixedly connected to the upper part of the outer wall of the drive shaft (5). A side column (6) is fixedly connected to the middle right side of the mounting shaft feed base (2), and the side column (6) is connected to a second slider (73) through a second drive assembly (7); A semi-circular ring (8) is fixedly connected to the lower left side of the outer wall of the second slider (73), a stop block (10) is fixedly connected to the upper left side of the outer wall of the second slider (73), an extension rod (9) is fixedly connected to the top left side of the outer wall of the second slider (73), and a missing circular ring (91) is fixedly connected to the top of the extension rod (9). The top of both the missing ring (91) and the wheel (52) is provided with a pressing assembly (11) for limiting the impeller; The top of the workbench (1) is provided with a lifting assembly (12) for lifting the mounting shaft; The top of the impeller feeding platform (3) is fixedly connected to a gantry frame (13), and the gantry frame (13) is connected to a sliding frame (14) through a third drive assembly (15); A sliding limit rod (165) slides through the sliding frame (14). A shaft plate (16) is fixedly connected to the bottom end of the sliding limit rod (165). A locking block (161) is connected to the right side of the outer wall of the shaft plate (16) through an elastic component. The locking block (161) slides and fits against the hole wall of the impeller. The sliding limit bar (165) is connected to the sliding frame (14) via the lifting and retraction assembly (17).

2. The impeller assembly device with automatically calibrated angle according to claim 1, characterized in that, The first drive assembly (4) includes a first cylinder (41), a first slide rail (42), a first slider (43), and a motor (44). The first cylinder (41) is fixedly connected to the top of the worktable (1), and the output end of the first cylinder (41) is fixedly connected to the outer wall of the first slider (43). The first slide rail (42) is fixedly connected to the top of the worktable (1), and the first slider (43) is slidably connected to the first slide rail (42). The motor (44) is fixedly connected to the top of the first slider (43).

3. The impeller assembly device with automatically calibrated angle according to claim 2, characterized in that, The drive shaft (5) is fixedly connected to the output shaft of the motor (44).

4. The impeller assembly device with automatically calibrated angle according to claim 3, characterized in that, The second drive assembly (7) includes a second cylinder (71) and a second slide rail (72). The output end of the second cylinder (71) is fixedly connected to the outer wall of the second slider (73). The second cylinder (71) is fixedly connected to the top of the side column (6). The second slide rail (72) is fixedly connected to the top left side of the side column (6). The second slider (73) is slidably connected to the second slide rail (72).

5. The impeller assembly device with automatically calibrated angle according to claim 4, characterized in that, The pressing assembly (11) includes a pressing plate (111) and a pressing ring (112). The pressing plate (111) is fixedly connected to the outer edge of the missing ring (91), and the pressing ring (112) is fixedly connected to the top of the wheel (52). The bottom surfaces of the pressing plate (111) and the pressing ring (112) are both in contact with the outer edge of the impeller and pressed.

6. The impeller assembly device with automatically calibrated angle according to claim 5, characterized in that, The lifting assembly (12) includes a lifting cylinder (121) and a lifting block (122). The output end of the lifting cylinder (121) is fixedly connected to the bottom of the lifting block (122). The lifting cylinder (121) is fixedly connected to the top of the worktable (1). The lifting block (122) slides through the inner bottom of the mounting shaft feed base (2). The top of the lifting block (122) contacts the bottom of the mounting shaft.

7. The impeller assembly device with automatically calibrated angle according to claim 6, characterized in that, The third drive assembly (15) includes a third cylinder (151), a third slide rail (152), a fourth cylinder (153), and a push rod (154). The third cylinder (151) is fixedly connected to the top of the gantry (13), and the output end of the third cylinder (151) is fixedly connected to the top of the sliding frame (14). The third slide rail (152) is fixedly connected to the front side of the outer wall of the gantry (13). The fourth cylinder (153) is fixedly connected to the bottom of the sliding frame (14), and the sliding frame (14) is slidably connected to the third slide rail (152). The push rod (154) is fixedly connected to the output end of the fourth cylinder (153).

8. The impeller assembly device with automatically calibrated angle according to claim 7, characterized in that, The elastic component includes a spring rod (162), a spring piece (163), and a contraction spring (164). There are two spring rods (162). The spring rods (162) are fixedly connected to the right side of the outer wall of the shaft plate (16). The spring piece (163) is slidably connected to the spring rod (162). One end of the contraction spring (164) is fixed to the outer wall of the spring piece (163), and the other end of the contraction spring (164) is fixedly connected to the right side of the outer wall of the shaft plate (16). The left end of the push rod (154) contacts the upper part of the right side of the outer wall of the spring (163), and the bottom end of the spring (163) is fixedly connected to the top end of the locking block (161).

9. The impeller assembly device with automatically calibrated angle according to claim 8, characterized in that, The lifting and retraction assembly (17) includes a sliding rod (171) and a lifting spring (172). The sliding rod (171) is fixedly connected to the left side of the sliding limit rod (165). The sliding rod (171) slides through the sliding frame (14). The lifting spring (172) is sleeved on the outer wall of the sliding rod (171). One end of the lifting spring (172) is fixed to the bottom of the sliding frame (14), and the other end of the lifting spring (172) is fixedly connected to the bottom of the sliding rod (171).

10. An assembly method for an impeller assembly device capable of automatically calibrating angles as described in claim 9, characterized in that, Includes the following steps: Step 1: The mounting shaft and impeller are transported to the processing position through the input ends of the mounting shaft feed base (2) and the impeller feed platform (3); Step 2: The second cylinder (71) pushes the second slider (73) to move, which in turn drives the semi-circular ring (8), the stop block (10) and the missing ring (91) to move, respectively limiting the mounting shaft and the impeller. Then, the first cylinder (41) pushes the first slider (43) to move, which in turn drives the motor (44) to move, causing the drive shaft (5) to move, thereby making the shaft disc (51) and the wheel disc (52) contact the mounting shaft and the impeller. Then, the motor (44) starts to drive the drive shaft (5) to rotate, which in turn drives the shaft disc (51) and the wheel disc (52) to rotate, which in turn drives the mounting shaft and the impeller to rotate. When the mounting shaft rotates to a certain angle, it will be blocked by the stop block (10), thereby limiting the mounting shaft assembly angle. Step 3: The sliding frame (14) is lowered by the third cylinder (151), and the spring (163) is moved by the fourth cylinder (153), which causes the contraction spring (164) to contract, so that the locking block (161) can enter the inner wall of the shaft hole of the impeller. When the impeller rotates to a certain angle, the locking block (161) will protrude to the right under the action of the contraction spring (164) and lock with the keyway of the impeller, thereby limiting the assembly angle of the impeller. At this time, the lifting cylinder (121) is started to drive the lifting block (122) to rise. The lifting block (122) will drive the mounting shaft to move upward. The key of the mounting shaft will cooperate with the keyway of the impeller. The mounting shaft gradually rises and pushes out the locking block (161). During the process of the mounting shaft rising, the impeller is limited by the pressing plate (111) and the pressing ring (112) to prevent the impeller from being pushed out. Step 4: At this time, the locking block (161) is disengaged from the impeller hole wall under the contraction of the sliding rod (171) and the lifting spring (172), and then the key of the mounting shaft is fully engaged with the keyway of the impeller, realizing the operation of automatically adjusting the angle of the mounting shaft and the impeller and installing it. Step 5: After the installation shaft and impeller are assembled, start the second cylinder (71) to reset the semi-circular ring (8), the stop block (10) and the missing ring (91), and start the first cylinder (41) to reset the drive shaft (5), the shaft disc (51) and the wheel disc (52) to complete the assembly cycle.

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