Impeller outer cover edge window stamping forming improved die tool

Abstract

The utility model provides an improved die tool for stamping and forming a side window of an impeller outer cover. The improved die tool comprises an upper side window stamping and forming tool, a gear shifting fork device, a shifting fork driving device, a rotary pressing device, a gear rotating device, a lower side window stamping and forming tool and a base. The upper side window punch forming tool comprises a side window profiling insert, the lower side window punch forming tool comprises a lower profiling punch, the impeller outer cover is driven by a rotating gear to rotate, and water outlet side windows at equal intervals are formed through punching. According to the rotary material pressing device, after an impeller outer cover is placed in the rotary material pressing device, a material pressing block presses the impeller outer cover and a positioning disc under the action of a material pressing spring, so that it is ensured that feeding and discharging are convenient and rapid for an operator, and it is ensured that the edge distances from side windows to an opening on a cover shell are consistent; the shifting fork is used for shifting the gear to rotate for continuous stamping, operation is safe and reliable, an operator does not need to make contact with a die cavity and equipment, and the safety production coefficient of the operator is ensured.

Description

Technical Field

[0001] This utility model relates to the field of impeller equipment technology, specifically to an improved mold tooling for stamping and forming the side window of an impeller outer cover. Background Technology

[0002] The impeller cover for wet and dry vacuum cleaners is a water outlet cover made of thin material stretched into shape. It resembles a cylinder with an R-shaped bottom, and the center of the R-shaped top has air inlets of varying diameters. The central air inlet has an inwardly flared edge. The surface of the wet / dry impeller cover has multiple outwardly protruding, irregularly shaped water outlet windows. These windows serve as the water outlet for the wet / dry vacuum cleaner when sucking in solids or liquids.

[0003] A Chinese patent with publication number CN104492970A discloses a multi-stage forming mold, specifically relating to a hole-forming punch. The hole-forming punch includes an upper mold and a lower mold, wherein the upper mold is a punch and the lower mold is a groove. The lower mold is mounted on a lower mold base, and the upper mold is mounted on an upper mold base. It also includes a hydraulic rod, an adjusting lever, and a punch connected in sequence. The hydraulic rod is connected to the power arm of the adjusting lever, and the punch is connected to the resistance arm of the adjusting lever. The punch has a groove matching a preset hole shape. The upper mold has a through hole through which the hydraulic rod passes. The adjusting lever is located at the lower mold base. The punch penetrates the lower mold and enters the groove, with the top of the punch matching the shape of the groove.

[0004] However, existing impeller cover side window stamping equipment cannot meet the production needs of products with diverse types and sizes, and cannot guarantee equidistant dimensions.

[0005] Therefore, there is a need for an improved die tooling for stamping impeller outer cover side windows, which can meet the product appearance shape requirements of different stamped impeller outer cover side windows, with uniform 360-degree edge distance, and is easy and quick to install and remove during production, and safe and reliable to operate. Utility Model Content

[0006] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide an improved mold tooling for stamping and forming the impeller outer cover side window.

[0007] An improved mold tooling for stamping and forming an impeller outer cover side window according to the present invention includes: an upper tooling for stamping and forming a side window, a gear shift fork device, a shift fork driving device, a rotating pressing device, a gear rotating device, a lower tooling for stamping and forming a side window, and a base.

[0008] The side window stamping and forming upper fixture is installed on the stamping equipment, and the gear shift fork device is installed on the side window stamping and forming upper fixture. The side window stamping and forming upper fixture and the shift fork driving device can move up and down synchronously through the stamping equipment.

[0009] The gear shift fork device, the rotary pressing device, the gear rotating device, and the side window stamping forming lower tooling are all mounted on the base. The gear shift fork device includes a gear shift fork, which is located below the shift fork driving device. The impeller cover is mounted on the rotary pressing device. The rotating gear is connected to the rotary pressing device through a linkage shaft. The impeller cover can rotate synchronously with the rotating gear.

[0010] The upper tooling for stamping the side window includes a side window profile insert, and the lower tooling for stamping the side window includes a lower profile punch. When the side window profile insert is driven downward by the stamping equipment to cooperate with the lower profile punch to stamp the side window on the impeller cover, the fork drive device can drive the gear fork to move downward. The gear fork is provided with a horizontal gear lever, which is locked in the tooth groove of the rotating gear of the gear rotating device. The gear lever is driven downward by the gear fork to move to the next tooth groove of the rotating gear.

[0011] After the stamping is completed, the side window stamping forming fixture and the shift fork drive device are driven upward to reset by the stamping equipment. The bottom of the gear shift fork is provided with a vertical shift fork reset spring. The gear shift fork is elastically driven upward to reset by the shift fork reset spring. The gear lever drives the rotating gear to rotate around its central axis by one tooth pitch.

[0012] The impeller casing is driven to rotate by a rotating gear, and is formed by stamping to create equally spaced water outlet windows.

[0013] Preferably, the upper tooling for stamping and forming the side window includes: a workpiece for docking with the equipment, a side window shape-following insert, a side window forming fixing insert, and an upper tooling fixing plate. The upper tooling for stamping and forming the side window is fastened to the stamping equipment through the workpiece for docking with the equipment. The upper tooling fixing plate is fastened to the bottom of the workpiece for docking with the equipment. The side window forming fixing insert is installed on the upper tooling fixing plate. The side window shape-following insert is embedded inside the side window forming fixing insert.

[0014] Preferably, the shift fork drive device includes: a shift fork drive device fixing component and a shift fork drive adjusting bolt. One end of the shift fork drive device fixing component is fastened to the workpiece docking with the equipment, and the shift fork drive adjusting bolt is movably installed at the other end of the shift fork fixing component. The shift fork drive adjusting bolt is threadedly connected to the shift fork drive device fixing component, and the shift fork drive adjusting bolt can move up and down in the vertical direction.

[0015] Preferably, the gear fork device further includes a fork fixing groove, which is arranged vertically. The gear fork is provided with a guide rod that matches the fork fixing groove. The guide rod slides in conjunction with the fork fixing groove, and the gear fork can move up and down along the fork fixing groove. The gear lever is horizontally inserted at one end of the gear fork, with one end of the gear lever abutting against the rotating gear and the other end abutting against the gear lever via a spring. The gear lever can move horizontally.

[0016] Preferably, the lower tooling for the side window stamping further includes: a lower lifting plate and a stamping forming pad, wherein multiple springs are evenly arranged between the lower lifting plate and the stamping forming pad, and the lower contour punch passes through the lower lifting plate and cooperates with the window shape contouring insert and the side window forming fixing insert for stamping.

[0017] Preferably, the rotary pressing device includes: a pressing block, a positioning seat, and a positioning disk. The impeller cover is installed on the positioning seat and the positioning disk. The pressing block is provided with a pressing spring and a limiting post inside. The pressing block is fastened to the positioning disk through a locking bolt to press the impeller cover.

[0018] Preferably, the gear rotating device further includes: a connecting shaft and a bearing seat, the connecting shaft is mounted on the bearing seat, the rotating gear is fastened to the positioning disk through the connecting shaft, and the positioning disk can rotate synchronously with the rotating gear.

[0019] Preferably, the bearing housing is provided with one or more sets of positioning devices, the positioning devices including: compression springs and spherical positioning pins, the rotating gear having a plurality of pin holes evenly arranged along the circumference, and the spherical positioning pins being able to be inserted into the pin holes by being driven by the compression springs.

[0020] Preferably, the tooth pitch of the rotating gear is consistent with the edge distance of the water outlet window.

[0021] Preferably, the stamping equipment is equipped with a quantity controller.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. This utility model employs a rotary pressing device. After the impeller cover is placed into the rotary pressing device, the pressing block presses the impeller cover against the positioning plate under the action of the pressing spring, ensuring convenient and quick loading and unloading for operators and ensuring that the edge distance from all side windows to the opening on the cover is consistent. By using a lower tooling with a shift fork to drive the gear for continuous stamping, the product has significant advantages in production quality and quantity. The operation is safe and reliable, and the operator does not need to contact the mold cavity or equipment, ensuring the safety of the operator's production.

[0024] 2. This utility model adds a profile part of the impeller outer cover side window inside the fixed cavity of the stamping die of the side window stamping forming tooling. The profile part is processed by the machining center according to the outline drawing of the impeller water outlet outer cover side window to ensure that the shape of the cover side window is consistent with the drawing and to ensure that the outline line of the side window is smooth.

[0025] 3. This utility model adds radial side window equidistant positioning to the bearing seat. When the gear shift fork device drives the rotating gear to rotate by an equal distance, the front end of the ball positioning pin enters the positioning hole of the rotating gear under the action of the compression spring to make precise positioning, so as to ensure that the side windows are evenly distributed in the radial 360-degree position of the cover. Attached Figure Description

[0026] 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:

[0027] Figure 1 This is a schematic diagram of the improved mold tooling for stamping and forming the impeller outer cover side window, which is the main feature of this utility model.

[0028] Figure 2 This is an exploded view of the shift fork drive device, which is the main feature of this utility model.

[0029] Figure 3 This utility model mainly shows the exploded view of the tooling for the stamping and forming of the side window;

[0030] Figure 4 This is a schematic diagram illustrating the structure of the contour-following inlay for the side window, which is the main feature of this utility model.

[0031] Figure 5 This is a schematic diagram illustrating the structure of the contour-following inlay for the side window, which is the main feature of this utility model.

[0032] Figure 6 This is an exploded view of the gear shift fork device, which is the main feature of this utility model.

[0033] Figure 7 This utility model mainly embodies the exploded view of the tooling for the side window stamping process;

[0034] Figure 8 This is an exploded view showing the rotary pressing device and the gear rotating device that are the main features of this utility model;

[0035] Figure 9 This is a schematic diagram showing the structure of the base, which is the main feature of this utility model.

[0036] Figure 10 This is a schematic diagram of the structure of the finished side window, which is the main feature of this utility model.

[0037] Figure label:

[0038] Detailed Implementation

[0039] 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.

[0040] like Figure 1-10 As shown, an improved die tooling for stamping and forming an impeller cover side window according to this utility model includes: an upper die tooling 1 for stamping and forming a side window, a gear fork device 2, a fork drive device 3, a rotary pressing device 4, a gear rotating device 5, a lower die tooling 6 for stamping and forming a side window, and a base 7. The upper die tooling 1 for stamping and forming a side window is installed on a stamping machine, and the gear fork device 2 is installed on the upper die tooling 1 for stamping and forming a side window. The upper die tooling 1 for stamping and forming a side window and the fork drive device 3 can move up and down synchronously through the stamping machine. The gear fork device 2, the rotary pressing device 4, the gear rotating device 5, and the lower die tooling 6 for stamping and forming a side window are all installed on the base 7. The gear fork device 2 includes a gear fork 21, which is located below the fork drive device 3. The impeller cover is installed on the rotary pressing device 4, and the rotating gear 51 is connected to the rotary pressing device 4 through a linkage shaft. The impeller cover can rotate synchronously with the rotating gear 51. The upper die tooling 1 for stamping and forming a side window includes a side window. The profile insert, the lower tooling 6 for stamping the side window includes a lower profile punch 62. When the profile insert is driven downward by the stamping equipment to cooperate with the lower profile punch 62 to stamp the side window on the impeller cover, the shift fork drive device 3 can drive the gear shift fork 21 to move downward. The gear shift fork 21 is provided with a horizontal gear lever 22. The gear lever 22 is locked in the tooth groove of the rotating gear 51 of the gear rotating device 5. The gear lever 22 is driven downward by the gear shift fork 21 to rotate. In the next tooth groove of the rotating gear 51; after the stamping is completed, the side window stamping forming upper tooling 1 and the shift fork drive device 3 are driven upward to reset by the stamping equipment. The bottom of the gear shift fork 21 is provided with a vertical shift fork reset spring 24. The gear shift fork 21 is elastically driven upward to reset by the shift fork reset spring 24. The gear lever 22 drives the rotating gear 51 to rotate around its central axis by one tooth pitch. The impeller cover is driven to rotate by the rotating gear 51, and the equally spaced water outlet side window is formed by stamping.

[0041] The upper tooling 1 for side window stamping includes: a workpiece 11 for docking with the equipment, a side window shape-following insert 12, a side window forming fixing insert 13, and an upper tooling fixing plate 14. The upper tooling 1 for side window stamping is fastened to the stamping equipment through the workpiece 11 for docking with the equipment. The upper tooling fixing plate 14 is fastened to the bottom of the workpiece 11 for docking with the equipment. The side window forming fixing insert 13 is installed on the upper tooling fixing plate 14, and the side window shape-following insert 12 is embedded inside the side window forming fixing insert 13.

[0042] The shift fork drive device 3 includes a shift fork drive device fixing part 31 and a shift fork drive adjusting bolt 32. One end of the shift fork drive device fixing part 31 is fastened to the workpiece 11 of the equipment docking, and the shift fork drive adjusting bolt 32 is movably installed on the other end of the shift fork fixing part 21. The shift fork drive adjusting bolt 32 is threadedly connected to the shift fork drive device fixing part 31. The shift fork drive adjusting bolt 32 can move up and down in the vertical direction to adjust the movement distance of the shift fork.

[0043] The gear shift fork device 2 also includes a shift fork fixing groove 23, which is arranged vertically. A guide rod matching the shift fork fixing groove 23 is provided on the gear shift fork 21. The guide rod slides in cooperation with the shift fork fixing groove 23, and the gear shift fork 21 can move up and down along the shift fork fixing groove 23. The gear shift rod 22 is horizontally inserted at one end of the gear shift fork 21. One end of the gear shift rod 22 abuts against the rotating gear 51, and the other end abuts against the gear shift rod 22 through a spring. The spring enables the gear shift rod 22 to move horizontally and always contact the rotating gear (51).

[0044] The lower tooling 6 for side window stamping also includes: a lower lifting plate 61 and a stamping forming pad 63. Multiple springs 64 are evenly arranged between the lower lifting plate 61 and the stamping forming pad 63 to prevent deformation of the edge of the cover opening. The lower contour punch 62 passes through the lower lifting plate 61 and cooperates with the window shape contour insert 12 and the side window forming fixing insert 13 for stamping.

[0045] The rotary pressing device 4 includes a pressing block 44, a positioning seat 45, and a positioning plate 46. The impeller cover is installed on the positioning seat 45 and the positioning plate 46. The pressing block 44 is equipped with a pressing spring 41 and a limiting post 43. The pressing block 44 passes through the positioning seat 45 and is fastened to the positioning plate 46 by a locking bolt 42 to press the impeller cover.

[0046] The gear rotating device 5 also includes a connecting shaft 52 and a bearing seat 53. The connecting shaft 52 is mounted on the bearing seat 53. The rotating gear 51 is fastened to the positioning disk 46 through the connecting shaft 52. The positioning disk 46 can rotate synchronously with the rotating gear 51.

[0047] The bearing housing 53 is provided with one or more sets of positioning devices 54. The positioning devices include: compression spring 541 and ball positioning pin 542. Multiple pin holes are evenly arranged along the circumference of the rotating gear 51. The ball positioning pin 542 can be inserted into the pin hole by being driven by the compression spring 541.

[0048] The tooth pitch of the rotating gear 51 is the same as the edge distance of the water outlet window.

[0049] The stamping equipment is equipped with a quantity controller.

[0050] The working process of this application includes the following steps:

[0051] Step S1: Connect the assembled side window stamping fixture 1 to the stamping equipment through the bolt holes;

[0052] Step S2: Adjust the movement coordination and movement distance of each component;

[0053] Step S3: Place the impeller cover to be stamped into the positioning seat 45, so that it is attached to the positioning plate 46 and the pressure block 44 is installed. Under the action of the pressure spring 41, the four protruding feet of the pressure block 44 press it firmly.

[0054] Step S4: Start the stamping equipment;

[0055] In step S5, the stamping equipment drives the upper tooling 1 for stamping the side window downwards. The fork drive adjusting bolt 32 installed on the upper tooling 1 for stamping the side window contacts the gear fork 21, causing the gear fork 21 to move vertically downwards in the fork fixing groove 23. When the side window forming fixing insert 13 contacts the outer diameter of the impeller cover, stamping begins until the lower contour punch 62 pierces and pushes out one of the stamping points of the outer diameter of the impeller cover, contacting the side window shape contour insert 12 to form an outwardly convex window, completing the stamping of one impeller cover side window. At this time, the gear fork 21 moves downwards under the action of the fork drive adjusting bolt 32, and the gear lever 22 moves backwards in parallel under the action of the rotating gear 51. When the gear fork 21 moves to the lower limit position, the gear lever 22 moves to the lower part of the other tooth of the rotating gear 51, and the gear lever 22 is pushed out under the action of the spring and contacts the tooth groove.

[0056] Step S6: After the side window of the impeller cover is stamped and formed, the equipment drives the side window stamping and forming upper tooling 1 to return to its original position. At the same time, the gear fork 21 moves back to its original position under the action of the fork return spring 24. The gear lever 22 moves the rotating gear 51 to drive the impeller cover to rotate a distance along the axis.

[0057] Step S7: After the equipment returns to its original position, the positioning device 54, under the action of the compression spring 541, inserts the ball positioning pin 542 into the positioning hole of the rotating gear 51 to ensure consistent rotation position.

[0058] Step S8, the above actions are repeated continuously for stamping;

[0059] Step S9: When the number of holes in the cover side window reaches the required quantity, the controller issues a stop command to complete the stamping of the radial 360-degree polygonal holes in the cover.

[0060] This application utilizes a combination of traditional mechanical transmission and stamping die structure to achieve a tooling for continuous stamping forming of the outer cover of the water outlet impeller of a wet and dry vacuum cleaner with an outwardly protruding irregular side window.

[0061] This application adds a profile part of the impeller outer cover side window to the fixed cavity of the stamping die of the tooling 1 for side window stamping. The profile part is processed by a machining center according to the outline drawing of the impeller water outlet outer cover side window to ensure that the shape of the cover side window is consistent with the drawing and to ensure that the outline of the side window is smooth.

[0062] This application adds two cover side windows in the bearing housing 53 to achieve precise radial side window equidistant positioning. Through the cooperation of compression spring 541 and spherical positioning pin 542, when the gear shift fork device 2 drives the rotating gear 51 to rotate by an equal distance, the front end of the spherical positioning pin 542 enters the positioning hole of the rotating gear 51 under the action of compression spring 541 to achieve precise positioning, so as to ensure that the side windows are evenly distributed in the radial 360-degree position of the cover.

[0063] This application adds a rotary pressing device 4. After the impeller cover is placed into the rotary pressing device 4, the pressing block 44 presses the impeller cover and the positioning plate together under the action of the pressing spring 41, so as to ensure that the operator can load and unload materials conveniently and quickly, and to ensure that the edge distance from all the side windows to the opening on the cover is consistent.

[0064] This application fully meets the requirements for the stamping and forming of the impeller outer cover side window, with uniform 360-degree edge spacing, making installation and handling convenient and quick for operators during production. Due to the use of a lower tooling with a fork-driven gear for continuous stamping, the product has significant advantages in terms of production quality and quantity. Operation is safe and reliable, as operators do not need to contact the mold cavity or equipment, ensuring a high level of safety for operators.

[0065] 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.

[0066] 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. An improved die and tooling for stamping and forming the side window of an impeller casing, characterized in that, include: The side window stamping forming upper tooling (1), gear shift fork device (2), shift fork drive device (3), rotary pressing device (4), gear rotation device (5), side window stamping forming lower tooling (6), and base (7); The side window stamping forming upper tooling (1) is installed on the stamping equipment, the gear shift fork device (2) is installed on the side window stamping forming upper tooling (1), and the side window stamping forming upper tooling (1) and the shift fork driving device (3) can move up and down synchronously by being driven by the stamping equipment; The gear shift fork device (2), the rotary pressing device (4), the gear rotating device (5), and the side window stamping forming lower tooling (6) are all installed on the base (7). The gear shift fork device (2) includes a gear shift fork (21), which is located below the shift fork driving device (3). The impeller cover is installed on the rotary pressing device (4). The rotating gear (51) is connected to the rotary pressing device (4) through a linkage shaft. The impeller cover can rotate synchronously with the rotating gear (51). The upper tooling (1) for stamping the side window includes a side window profile insert, and the lower tooling (6) for stamping the side window includes a lower profile punch (62). When the side window profile insert is driven to move downward by the stamping equipment and cooperates with the lower profile punch (62) to stamp the side window on the impeller cover, the fork drive device (3) can drive the gear fork (21) to move downward. The gear fork (21) is provided with a horizontal gear lever (22). The gear lever (22) is locked in the tooth groove of the rotating gear (51) of the gear rotating device (5). The gear lever (22) is driven to move downward to the next tooth groove of the rotating gear (51) by the gear fork (21). After the stamping is completed, the side window stamping forming upper tooling (1) and the fork drive device (3) are driven upward to reset by the stamping equipment. The bottom of the gear fork (21) is provided with a vertical fork reset spring (24). The gear fork (21) is elastically driven upward to reset by the fork reset spring (24). The gear lever (22) drives the rotating gear (51) to rotate around its central axis by one tooth pitch. The impeller casing is driven to rotate by a rotating gear (51) and is formed by stamping to create equally spaced water outlet windows.

2. The improved die and tooling for stamping and forming the impeller outer casing side window as described in claim 1, characterized in that, The upper tooling (1) for stamping the side window includes: a workpiece (11) for docking the equipment, a side window shape imitation insert (12), a side window forming fixing insert (13), and an upper tooling fixing plate (14). The upper tooling (1) for stamping the side window is fastened to the stamping equipment through the workpiece (11). The upper tooling fixing plate (14) is fastened to the bottom of the workpiece (11). The side window forming fixing insert (13) is installed on the upper tooling fixing plate (14). The side window shape imitation insert (12) is embedded inside the side window forming fixing insert (13).

3. The improved die and tooling for stamping and forming the impeller outer casing side window as described in claim 2, characterized in that, The shift fork drive device (3) includes: a shift fork drive device fixing part (31) and a shift fork drive adjusting bolt (32). One end of the shift fork drive device fixing part (31) is fastened to the workpiece (11) of the equipment docking. The shift fork drive adjusting bolt (32) is movably installed at the other end of the shift fork fixing part (21). The shift fork drive adjusting bolt (32) and the shift fork drive device fixing part (31) are connected by threads. The shift fork drive adjusting bolt (32) can move up and down in the vertical direction.

4. The improved die and tooling for stamping and forming the impeller outer casing side window as described in claim 1, characterized in that, The gear shift fork device (2) further includes a shift fork fixing groove (23), which is arranged vertically. The gear shift fork (21) is provided with a guide rod that matches the shift fork fixing groove (23). The guide rod slides in cooperation with the shift fork fixing groove (23). The gear shift fork (21) can move up and down along the shift fork fixing groove (23). The gear lever (22) is horizontally inserted into one end of the gear shift fork (21). One end of the gear lever (22) abuts against the rotating gear (51), and the other end abuts against the gear lever (22) through a spring. The gear lever (22) can move horizontally.

5. The improved die and tooling for stamping and forming the impeller outer casing side window as described in claim 2, characterized in that, The lower tooling (6) for stamping the side window also includes a lower lifting plate (61) and a stamping forming pad (63). Multiple springs (64) are evenly arranged between the lower lifting plate (61) and the stamping forming pad (63). The lower contour punch (62) passes through the lower lifting plate (61) and cooperates with the window shape contour insert (12) and the side window forming fixing insert (13) for stamping.

6. The improved die and tooling for stamping and forming the impeller outer casing side window as described in claim 1, characterized in that, The rotary pressing device (4) includes a pressing block (44), a positioning seat (45), and a positioning plate (46). The impeller cover is installed on the positioning seat (45) and the positioning plate (46). The pressing block (44) is provided with a pressing spring (41) and a limiting post (43). The pressing block (44) is fastened to the positioning plate (46) by a locking bolt (42) passing through the positioning seat (45) to press the impeller cover.

7. The improved die and tooling for stamping and forming the impeller outer casing side window as described in claim 6, characterized in that, The gear rotating device (5) further includes a connecting shaft (52) and a bearing seat (53). The connecting shaft (52) is mounted on the bearing seat (53). The rotating gear (51) is fastened to the positioning disk (46) through the connecting shaft (52). The positioning disk (46) can rotate synchronously with the rotating gear (51).

8. The improved die and tooling for stamping and forming the impeller outer casing side window as described in claim 7, characterized in that, The bearing housing (53) is provided with one or more positioning devices (54), the positioning device includes a compression spring (541) and a spherical positioning pin (542), the rotating gear (51) is provided with a plurality of pin holes evenly arranged along the circumference, and the spherical positioning pin (542) can be inserted into the pin hole by the spring drive of the compression spring (541).

9. The improved die and tooling for stamping and forming the impeller outer casing side window as described in claim 1, characterized in that, The tooth pitch of the rotating gear (51) is consistent with the edge distance of the water outlet window.

10. The improved die and tooling for stamping and forming the impeller outer casing side window as described in claim 1, characterized in that, The stamping equipment is equipped with a quantity controller.

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