Impeller three-foot powder shaft sleeve riveting end jump correcting tool

Abstract

The utility model provides an impeller three-foot powder shaft sleeve riveting and end jump correcting tool which comprises riveting equipment, an upper riveting tool, an end face correcting tool, lower riveting tools, an impeller feeding disc and a divider, the impeller feeding disc is driven by the divider to rotate around the center shaft of the impeller feeding disc by a preset angle, the impeller feeding disc is evenly provided with a plurality of lower riveting tools, and the lower riveting tools are arranged on the upper riveting tool and the lower riveting tool. The multiple lower riveting tools can sequentially move to the riveting station under the upper riveting tool through rotation of the impeller feeding disc. The end face correcting tool is installed on the riveting upper tool, a through hole matched with the impeller is formed in the end face correcting tool, and after the three-pin powder shaft sleeve and the impeller are riveted, the end face correcting tool makes contact with a lower piece of the impeller and corrects the lower piece of the impeller. By the adoption of the end face correcting tool, when the impeller shaft sleeve is riveted, the end face is corrected after the impeller lower piece is stressed, deformation of the impeller lower piece is reduced, it is guaranteed that the end face of the impeller jumps within a hole range, the procedure of manually correcting the end face jumps is omitted, and labor cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of impeller technology, specifically to a tooling for riveting and straightening the end of a three-foot powder shaft sleeve of an impeller. Background Technology

[0002] Small outer diameter vacuum cleaner impeller: Its features include a rotation speed of up to 80,000 rpm or more, and the impeller base plate is made of aluminum with a thickness of 0.6mm-0.8mm. The center hole needs to be riveted with a 3-pin powder bushing to ensure that the connection between the impeller center hole and the motor shaft does not loosen or deform under high speed for a long time.

[0003] The 3-pin powder shaft sleeve uses a structure in which three small pillars are riveted to the impeller. Its shaft hole and motor are assembled using a press-fit process, which changes the original nut and washer assembly process, simplifying the installation process and saving labor costs.

[0004] Due to the thickness of the impeller base material, the impeller base and the three pillars of the bushing are subjected to deformation under stress when riveting the three-pin powder bushing, which may increase the risk of runout of the impeller end face.

[0005] A Chinese patent with publication number CN204700530U discloses an impeller bushing riveting machine, comprising an impeller feeding device, an impeller moving device, a bushing feeding device, a flat pad feeding device, a bushing pressing device, a flat pad pressing device, and a riveting device; wherein, the flat pad feeding device is disposed on one side of the impeller moving device, and the bushing feeding device is disposed on the other side of the impeller moving device; the bushing pressing device is disposed at the discharge port end of the bushing feeding device and is disposed below the impeller moving device; the flat pad feeding device is disposed at the discharge port end of the flat pad feeding device and is disposed above the impeller moving device; the impeller feeding device, the impeller moving device, and the riveting device are connected sequentially.

[0006] For products with riveted impeller bushings, not only must the bonding strength be guaranteed, but the runout of the end face after riveting also needs to be controlled. Large runout amplitude or numerous runouts can easily reduce the yield rate and require manual correction later, increasing the workload. Therefore, a tooling solution is needed to improve the runout issue of the end face of the riveted 3-pin powder bushing on vacuum cleaner impellers. Utility Model Content

[0007] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a tooling for riveting and straightening the end of the impeller 3-foot powder shaft sleeve.

[0008] According to the present invention, a riveting and end-scratching fixture for a three-foot powder shaft sleeve of an impeller is provided, comprising: a riveting device, an upper riveting fixture, an end-face straightening fixture, a lower riveting fixture, an impeller feeding disc, and a divider. The upper riveting fixture is mounted on the riveting device and can move up and down by being driven by the riveting device. The divider is connected to the impeller feeding disc and can rotate around its central axis by a preset angle by being driven by the divider. Multiple lower riveting fixtures are evenly arranged on the circumference of the impeller feeding disc. The multiple lower riveting fixtures can be moved sequentially to the riveting position directly below the upper riveting fixture by the rotation of the impeller feeding disc.

[0009] A 3-foot powder bushing is placed on the riveting fixture, and the impeller is placed on the 3-foot powder bushing. The 3 riveting mounting holes of the impeller correspond one-to-one with the 3 riveting cylinders of the 3-foot powder bushing.

[0010] The end face straightening fixture is installed on the riveting upper fixture. The end face straightening fixture is provided with a through hole that matches the impeller. When one of the riveting lower fixtures moves to the riveting station, the pressing device of the riveting upper fixture is driven by the riveting equipment to move downward through the end face straightening fixture and cooperate with the riveting lower fixture to rivet the 3-pin powder bushing and the impeller. After the riveting is completed, the end face straightening fixture is driven by the riveting upper fixture to move downward to contact and straighten the lower plate of the impeller. After the straightening is completed, the riveting upper fixture and the end face straightening fixture are driven by the riveting equipment to move upward to reset. The impeller feeding plate moves another riveting lower fixture to the riveting station.

[0011] Preferably, the riveting upper tooling further includes: an upper tooling pad, a pressure spring, a riveting punch, and a punch fixing block. The upper tooling pad is fastened to the riveting equipment. The riveting punch passes through the punch fixing block, and its two ends are respectively connected to the upper tooling pad and the pressure device. The riveting punch can move up and down by being driven by the riveting equipment.

[0012] Preferably, the pressing device is provided with an installation groove, and the riveting punch is installed in the installation groove. The pressing device includes a large cylinder at the top and a small cylinder at the bottom, and the size of the small cylinder matches the area of ​​the circle formed by the three riveting cylinders.

[0013] Preferably, the punch fixing block extends downward to form a protrusion, the upper part of the inner wall of the end face straightening fixture is fastened to the protrusion, and the inner diameter of the lower part of the inner wall of the end face straightening fixture is greater than the diameter of the upper impeller blade and smaller than the diameter of the lower impeller blade.

[0014] Preferably, the riveting upper fixture is driven by the riveting equipment to move up and down and drive the end face straightening fixture to move up and down. When the pressing device is riveting, the end face straightening fixture is driven by the riveting upper fixture to move above the impeller and does not contact the impeller. After the riveting is completed, the end face straightening fixture is driven by the riveting upper fixture to move down and cooperate with the riveting lower fixture to straighten the impeller.

[0015] Preferably, the riveting fixture includes: a positioning component, a lower fixture pressure block, a lifting device, a lifting spring, a lower fixing fixture, and a lower limit block. The lower fixture pressure block, the lifting device, the lower fixing fixture, and the lower limit block are arranged sequentially from top to bottom. The lifting spring is arranged between the lifting device and the lower fixing fixture. The lower limit block is fastened to the impeller feeding disc.

[0016] Preferably, the positioning element is inserted at the center of the lower tooling block and extends to the top of the lower tooling block. The top of the positioning element is provided with a positioning cavity, and the 3-pin powder bushing is placed in the positioning cavity.

[0017] Preferably, the bottom of the 3-pin powder bushing has a protrusion, the shape of the positioning cavity matches the protrusion, and the outer diameter of the 3-pin powder bushing matches the outer diameter of the positioning element.

[0018] Preferably, the impeller feeding disc rotates counterclockwise, and the impeller feeding disc includes a feeding station, a riveting station, and a discharging station arranged sequentially in a counterclockwise direction. The 3-pin powder bushing and the impeller are respectively placed on the riveting fixture of the feeding station through the feeding device. The riveted finished products of the 3-pin powder bushing and the impeller are transferred away from the riveting fixture of the discharging station through the material handling device.

[0019] Preferably, eight riveting fixtures are evenly arranged on the impeller feed disc, and the divider can drive the impeller feed disc to rotate 45° each time.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] This invention adds an end-face correction fixture to the impeller bushing riveting fixture by using a 3-foot powder bushing riveting fixture. During impeller bushing riveting, the rear end face of the lower impeller blade under force is corrected, reducing deformation and ensuring that the impeller end face runout remains within acceptable limits. By using the 3-foot powder bushing riveting end-face correction fixture, the original manual end-face runout correction process after impeller bushing riveting is eliminated, saving labor costs. The operation is safe and reliable; operators do not need to contact the mold cavity or equipment, ensuring a high safety factor for operators. Attached Figure Description

[0022] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0023] Figure 1 This is a schematic diagram of the structure of the impeller 3-foot powder shaft sleeve riveting and straightening fixture, which is the main feature of this utility model.

[0024] Figure 2 This is a schematic diagram illustrating the structure of the riveting fixture, which is the main feature of this utility model.

[0025] Figure 3 This is a schematic diagram of the structure of the riveting fixture, which is the main feature of this utility model.

[0026] Figure 4 This is a schematic diagram illustrating the structure of the 3-pin powder bushing, which is the main feature of this utility model.

[0027] Figure 5 This is a schematic diagram illustrating the structure of the impeller, which is the main feature of this utility model.

[0028] Figure 6 This is a schematic diagram of the finished product after the 3-pin powder shaft sleeve and impeller are riveted together, which is the main feature of this utility model.

[0029] Figure label:

[0030]

[0031] Detailed Implementation

[0032] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0033] like Figure 1-6As shown, the present invention provides a riveting and end-straightening fixture for a 3-foot powder bushing of an impeller, comprising: a riveting device 1, an upper riveting fixture 2, an end-face straightening fixture 3, a lower riveting fixture 6, an impeller feeding disc 7, and a divider 8. The upper riveting fixture 2 is mounted on the riveting device 1 and can move up and down driven by the riveting device 1. The divider 8 is connected to the impeller feeding disc 7 and can rotate around its central axis by a preset angle driven by the divider 8. Multiple lower riveting fixtures 6 are evenly arranged circumferentially on the impeller feeding disc 7. The multiple lower riveting fixtures 6 can be moved sequentially to the riveting position directly below the upper riveting fixture 2 by the rotation of the impeller feeding disc 7. A 3-foot powder bushing 4 is placed on the lower riveting fixture 6, and the impeller 5 is placed on the 3-foot powder bushing 4. Furthermore, the three riveting mounting holes 51 of the impeller 5 correspond one-to-one with the three riveting cylinders 41 of the three-foot powder bushing 4; the end face straightening fixture 3 is installed on the riveting upper fixture 2, and the end face straightening fixture 3 is provided with through holes that match the impeller 5. When one riveting lower fixture 6 moves to the riveting station, the pressing device 25 of the riveting upper fixture 2 is driven by the riveting equipment 1 to move downward through the end face straightening fixture 3 and cooperate with the riveting lower fixture 6 to rivet the three-foot powder bushing 4 and the impeller 5. After the three-foot powder bushing 4 and the impeller 5 are riveted, the end face straightening fixture 3 contacts and straightens the lower plate of the impeller 5. After the straightening is completed, the riveting upper fixture 2 and the end face straightening fixture 3 are driven by the riveting equipment 1 to move upward for reset, and the impeller feeding plate 7 moves another riveting lower fixture 6 to the riveting station.

[0034] The riveting upper fixture 2 also includes: an upper fixture pad 21, a pressure spring 22, a riveting punch 23, and a punch fixing block 24. The upper fixture pad 21 is fastened to the riveting equipment 1. The riveting punch 23 passes through the punch fixing block 24, and its two ends are respectively connected to the upper fixture pad 21 and the pressure device 25. The riveting punch 23 can move up and down driven by the riveting equipment 1. The upper fixture pad 21, the riveting punch 23, the punch fixing block 24, the pressure device 25, the end face straightening fixture 3, the impeller 5, and the 3-foot powder bushing 4 all share a common central shaft.

[0035] The pressing device 25 is provided with an installation groove, and the riveting punch 23 is installed in the installation groove. The pressing device 25 includes a large cylinder at the top and a small cylinder at the bottom. The size of the small cylinder matches the area of ​​the circle formed by the three riveting cylinders 41.

[0036] The punch fixing block 24 extends downward to form a protrusion. The upper part of the inner wall of the end face straightening fixture 3 is fastened to the protrusion. The inner diameter of the lower part of the inner wall of the end face straightening fixture 3 is greater than the diameter of the upper blade of the impeller 5 and smaller than the diameter of the lower blade of the impeller 5.

[0037] The riveting upper fixture 2 is driven by the riveting equipment 1 to move up and down, and also drives the end face straightening fixture 3 to move up and down. When the pressing device 25 is riveting, the end face straightening fixture 3 is driven by the riveting upper fixture 2 to move above the impeller 5 and not in contact with the impeller 5. After the riveting is completed, the end face straightening fixture 3 is driven by the riveting upper fixture 2 to move down and cooperate with the riveting lower fixture 6 to straighten the impeller 5.

[0038] The riveting fixture 6 includes: a positioning component 61, a lower fixture pressure block 62, a lifting device 63, a lifting spring 64, a lower fixing fixture 65, and a lower limit block 66. The lower fixture pressure block 62, lifting device 63, lower fixing fixture 65, and lower limit block 66 are arranged sequentially from top to bottom. The lifting spring 64 is positioned between the lifting device 63 and the lower fixing fixture 65. The lower limit block 66 is securely connected to the impeller feeding disc 7. The positioning component 61, lower fixture pressure block 62, lifting device 63, lower fixing fixture 65, lower limit block 66, and the 3-foot powder bushing 4 share a common central shaft.

[0039] The positioning element 61 is inserted at the center of the lower tooling pressure block 62, and its top extends above the lower tooling pressure block 62. The top of the positioning element 61 is provided with a positioning cavity, and the 3-foot powder bushing 4 is placed in the positioning cavity.

[0040] The bottom of the 3-pin powder bushing 4 has a protrusion, the shape of the positioning cavity matches the protrusion, and the outer diameter of the 3-pin powder bushing 4 matches the outer diameter of the positioning member 61.

[0041] The impeller feed plate 7 rotates counterclockwise. The impeller feed plate 7 includes, in a counterclockwise direction, a loading station, a riveting station, and a unloading station. The 3-pin powder bushing 4 and the impeller 5 are placed on the riveting fixture 6 at the loading station via a loading device. The riveted finished product of the 3-pin powder bushing 4 and the impeller 5 is transferred away from the riveting fixture 6 at the unloading station via a material handling device.

[0042] Eight riveting fixtures 6 are evenly arranged on the impeller feed plate 7, and the divider 8 can drive the impeller feed plate 7 to rotate 45° each time.

[0043] The working process of this application includes the following steps:

[0044] Step 1: The riveting fixture 2 and the end face straightening fixture 3 are combined and assembled together to form a 3-foot bushing riveting end face straightening fixture.

[0045] Step 2: Connect the assembly of the 3-foot bushing riveting end face straightening fixture to the riveting equipment 1.

[0046] Step 3: Rivet the assembled 3-foot powder shaft sleeve 4 with 8 riveting fixtures 6 and evenly distribute them on the impeller feed plate 7, and align them with the upper fixture.

[0047] Step 4: Adjust the coordination of each process of the equipment;

[0048] Step 5: Press the start switch;

[0049] Step 6: The 3-pin powder bushing 4 is placed into the cavity of the riveting fixture 6 through the bushing feeding device;

[0050] Step 7: The conveyor feeder 7 rotates 45° under the drive of the divider 8 and moves to the next station;

[0051] Step 8: The impeller 5 is fed to the 3-foot powder bushing 4 of the riveting fixture 6 by the feeding device. The 3 riveting mounting holes 51 of the impeller 5 are aligned with the 3 riveting cylinders 41 of the 3-foot powder bushing 4 and inserted.

[0052] Step 9: The impeller feeding disc 7 moves to the underside of the riveting fixture 2 under the drive of the divider 8. The riveting equipment 1 drives the riveting fixture 2 to move downward to start the riveting of the impeller shaft sleeve. When the impeller shaft sleeve is riveted, the end face straightening fixture 3 contacts the lower blade of the impeller 5 to ensure that the lower blade of the impeller 5 does not deform when the impeller 5 is subjected to riveting force.

[0053] Step 10: After the impeller 5 and the 3-foot powder shaft sleeve 4 are riveted to the required size, the riveting equipment 1 drives the riveting fixture 2 to return to its original position.

[0054] Step 11: The divider 8 drives the impeller feeding disc 7 to start transmitting the next riveting fixture 6 to the area directly below the riveting fixture 2. At the same time, the 3-foot powder bushing 4 and the impeller 5 continue to feed material, and the material removal device removes the riveted impeller product.

[0055] Step 12, repeated continuously, forms a continuous product riveting process.

[0056] The impeller 3-foot powder bushing riveting fixture of this application adds an end face correction fixture 3 during impeller bushing riveting. During impeller bushing riveting, the rear end face of the lower impeller 5 under force is corrected, reducing the deformation of the lower impeller 5 and ensuring that the impeller end face runout is within the acceptable range. By using the impeller 3-foot powder bushing riveting end face correction fixture, the original manual end face runout correction process after impeller bushing riveting is eliminated, saving labor costs. This application is safe and reliable to operate; operators do not need to contact the mold cavity or equipment, ensuring a high safety factor for operators.

[0057] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0058] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A tooling for riveting and straightening the end runout of a three-foot powder shaft sleeve on an impeller, characterized in that, include: The riveting equipment (1), the riveting upper fixture (2), the end face straightening fixture (3), the riveting lower fixture (6), the impeller feeder (7), and the divider (8) are provided. The riveting upper fixture (2) is installed on the riveting equipment (1). The riveting upper fixture (2) can move up and down by being driven by the riveting equipment (1). The divider (8) is connected to the impeller feeder (7) by transmission. The impeller feeder (7) can rotate around its central axis by a preset angle by being driven by the divider (8). Multiple riveting lower fixtures (6) are evenly arranged on the impeller feeder (7) along the circumference. The multiple riveting lower fixtures (6) can move sequentially to the riveting position directly below the riveting upper fixture (2) by rotating the impeller feeder (7). A 3-foot powder bushing (4) is placed on the riveting fixture (6), and an impeller (5) is placed on the 3-foot powder bushing (4). The 3 riveting mounting holes (51) of the impeller (5) are set one-to-one with the 3 riveting cylinders (41) of the 3-foot powder bushing (4). The end face straightening fixture (3) is installed on the riveting upper fixture (2). The end face straightening fixture (3) is provided with a through hole that matches the impeller (5). When one of the riveting lower fixtures (6) moves to the riveting station, the pressing device (25) of the riveting upper fixture (2) is driven by the riveting equipment (1) to move downward through the end face straightening fixture (3) and cooperate with the riveting lower fixture (6) to rivet the 3-pin powder bushing (4) and the impeller (5). After the riveting is completed, the end face straightening fixture (3) is driven by the riveting upper fixture (2) to move downward and contact the lower plate of the impeller (5) for straightening. After the straightening is completed, the riveting upper fixture (2) and the end face straightening fixture (3) are driven by the riveting equipment (1) to move upward for reset. The impeller feeding plate (7) moves another riveting lower fixture (6) to the riveting station.

2. The impeller 3-foot powder shaft sleeve riveting and straightening fixture as described in claim 1, characterized in that, The riveting upper tooling (2) further includes: upper tooling pad (21), pressure spring (22), riveting punch (23) and punch fixing block (24). The upper tooling pad (21) is fastened to the riveting equipment (1). The riveting punch (23) passes through the punch fixing block (24) and its two ends are respectively connected to the upper tooling pad (21) and the pressure device (25). The riveting punch (23) can move up and down by being driven by the riveting equipment (1).

3. The impeller 3-foot powder shaft sleeve riveting and straightening fixture as described in claim 2, characterized in that, The pressing device (25) is provided with an installation groove, and the riveting punch (23) is installed in the installation groove. The pressing device (25) includes a large cylinder at the top and a small cylinder at the bottom. The size of the small cylinder matches the area of ​​the circle formed by the three riveting cylinders (41).

4. The tooling for jump riveting the end of a 3-legged powder hub shaft as defined in claim 2, wherein, The punch fixing block (24) extends downward to form a protrusion. The upper part of the inner wall of the end face straightening fixture (3) is fastened to the protrusion. The inner diameter of the lower part of the inner wall of the end face straightening fixture (3) is greater than the diameter of the upper plate of the impeller (5) and smaller than the diameter of the lower plate of the impeller (5).

5. The impeller 3-foot powder shaft sleeve riveting and straightening fixture as described in claim 4, characterized in that, The riveting upper fixture (2) is driven by the riveting equipment (1) to move up and down and drive the end face straightening fixture (3) to move up and down. When the pressing device (25) rivets, the end face straightening fixture (3) is driven by the riveting upper fixture (2) to move above the impeller (5) and not in contact with the impeller (5). After the riveting is completed, the end face straightening fixture (3) is driven by the riveting upper fixture (2) to move down and cooperate with the riveting lower fixture (6) to straighten the impeller (5).

6. The impeller 3-foot powder shaft sleeve riveting and straightening fixture as described in claim 1, characterized in that, The riveting fixture (6) includes: a positioning component (61), a lower fixture pressure block (62), a lifting device (63), a lifting spring (64), a lower fixing fixture (65), and a lower limit block (66). The lower fixture pressure block (62), the lifting device (63), the lower fixing fixture (65), and the lower limit block (66) are arranged sequentially from top to bottom. The lifting spring (64) is arranged between the lifting device (63) and the lower fixing fixture (65). The lower limit block (66) is fastened to the impeller feeding disc (7).

7. The impeller 3-foot powder shaft sleeve riveting and straightening fixture as described in claim 6, characterized in that, The positioning element (61) is inserted in the center of the lower tooling block (62) and its top extends above the lower tooling block (62). The top of the positioning element (61) is provided with a positioning cavity, and the 3-pin powder bushing (4) is placed in the positioning cavity.

8. The impeller 3-foot powder shaft sleeve riveting and straightening fixture as described in claim 7, characterized in that, The bottom of the 3-pin powder bushing (4) has a protrusion, the shape of the positioning cavity matches the protrusion, and the outer diameter of the 3-pin powder bushing (4) matches the outer diameter of the positioning member (61).

9. The impeller 3-foot powder shaft sleeve riveting and straightening fixture as described in claim 1, characterized in that, The impeller feeding disc (7) rotates counterclockwise. The impeller feeding disc (7) includes a loading station, a riveting station and a unloading station arranged in a counterclockwise direction. The 3-pin powder bushing (4) and the impeller (5) are placed on the riveting fixture (6) of the loading station by the loading device. The riveted finished products of the 3-pin powder bushing (4) and the impeller (5) are transferred away from the riveting fixture (6) of the unloading station by the material handling device.

10. The impeller 3-foot powder shaft sleeve riveting and straightening fixture as described in claim 9, characterized in that, The impeller feed plate (7) is evenly provided with eight riveting fixtures (6), and the divider (8) can drive the impeller feed plate (7) to rotate 45° each time.

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