Impeller riveting machining die

Abstract

The utility model relates to the field of impeller machining, in particular to an impeller riveting machining die which comprises a bottom frame (1), and a support (2) for bearing an impeller and a stamping part (18) for assembling the impeller in a riveting mode are installed on the two sides of the upper portion of the bottom frame (1) respectively. A bearing plate (3) is installed on the side, close to the stamping part (18), of the support (2), a plurality of arc-shaped clamping strips (4) are evenly connected to the bearing plate (3), an arc-shaped clamping groove facilitating bending and embedding of the edge of an impeller cover plate is formed in the position, between every two adjacent clamping strips (4), of the bearing plate (3), and a positioning mechanism assisting in supporting the impeller to be placed is installed in the support (2). Compared with the prior art, the device has the advantages that firstly, the stamping part matched with the size of the impeller is adopted, the stamping part exerts pressure on the whole impeller at the same time in a stamping mode, point location synchronization is achieved, riveting is completed at a time, and under the condition that the impeller is evenly stressed, riveting efficiency is improved. The situation that the impeller deforms and even loosens due to uneven stress is avoided, the quality of the impeller is improved, and meanwhile the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of impeller processing, specifically to an impeller riveting processing mold. Background Technology

[0002] Impellers are generally composed of a cover plate and several blades. Most companies on the market use manual methods to assemble impellers by tapping each point one by one. Even some companies that use equipment still rivet each point individually. This may cause structural deformation of the parts due to uneven stress. Furthermore, when subsequent points are riveted, the previously riveted parts may deform and loosen. Therefore, an impeller riveting processing mold is provided. Utility Model Content

[0003] I. Technical problems to be solved

[0004] The technical problem this invention aims to solve is that impellers assembled using point-to-point riveting are prone to deformation or loosening. This application seeks to avoid this problem by using a stamping-integrated riveting method.

[0005] II. Technical Solution

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: an impeller riveting processing mold, comprising:

[0007] The base frame has supports for bearing the impeller and stamped components for assembling the impeller by riveting installed on both sides above it.

[0008] A bearing plate is installed on the side of the support near the stamping component. Multiple arc-shaped clips are evenly connected on the bearing plate. An arc-shaped groove is provided between two adjacent clips to facilitate the bending and embedding of the impeller cover edge. A positioning mechanism to assist in the placement of the impeller is installed inside the support.

[0009] The support is equipped with a buffer component that provides pressure protection for the bearing plate.

[0010] The base frame is equipped with a traveling assembly that supports the stamping components and drives them to move on one side of the bearing plate to perform impeller stamping and riveting.

[0011] Furthermore, the positioning mechanism includes multiple screws evenly arranged in the support and in a rotating state. A drive assembly for driving the screws to rotate synchronously is installed in the support. A screw sleeve is threadedly connected to the screw. Multiple sliding grooves are connected to the bearing plate. A stop plate is connected to the screw sleeve, the end of which passes through the sliding groove and can abut against the edge of the impeller cover plate and slide against the bearing plate.

[0012] Furthermore, the drive assembly includes a support shaft rotatably connected to a support. One end of the support shaft extends into the support and is fitted with a drive disc. A driven disc is fitted at one end of each screw close to the other. Multiple guide rods are connected to the edges of both the drive disc and the driven disc. The drive disc, through the end of its guide rods, is embedded into the gap between adjacent guide rods of the driven disc, thereby achieving the transmission effect between the support shaft and the screw. The end of the support shaft away from the drive disc extends to the outside of the support and is connected to a hand-drive structure that facilitates rotation of the support shaft by hand.

[0013] Furthermore, the hand-drive structure includes a support block, which is connected to the end of the support shaft. The support block has multiple insertion holes, and a plug rod that passes through the insertion holes and can be flexibly installed and removed from the support block is mounted on the support block.

[0014] Furthermore, the buffer assembly includes multiple dampers, and multiple support plates are evenly installed inside the support. The dampers are installed between the load-bearing plate and the support plates.

[0015] Furthermore, the walking assembly includes a hydraulic push rod installed in the base frame, a support frame is installed on the moving end of the hydraulic push rod, a pressure plate for installing stamping parts is installed on the top of the support frame, and walking frames are connected to both sides of the pressure plate by means of the bottom end being embedded in the base frame and slidably connected to the base frame.

[0016] III. Beneficial Effects

[0017] The advantages of this invention compared to the prior art are as follows: The device firstly uses a stamping component with a matching impeller size. By using the stamping method, the stamping component applies pressure to the entire impeller simultaneously. Therefore, the riveting is completed synchronously and in one go. With the impeller under uniform force, the deformation or even loosening of the impeller caused by uneven force is avoided. This improves the quality of the impeller and also increases production efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the external structure of an impeller riveting die according to this utility model. Figure 1 .

[0019] Figure 2 This is a schematic diagram of the external structure of an impeller riveting die according to this utility model. Figure 2 .

[0020] Figure 3 This is a schematic diagram of the internal structure of an impeller riveting die according to this utility model. Figure 1 .

[0021] Figure 4This is a schematic diagram of the internal structure of an impeller riveting die according to this utility model. Figure 2 .

[0022] Figure 5 yes Figure 2 A schematic diagram of the structure of part A.

[0023] Figure 6 yes Figure 3 A partial structural diagram.

[0024] Figure 7 yes Figure 4 A schematic diagram of the structure of part B.

[0025] As shown in the figure: 1. Base frame, 2. Support, 3. Bearing plate, 4. Clip, 5. Slide groove, 6. Support plate, 7. Damper, 8. Screw, 9. Screw sleeve, 10. Abutment plate, 11. Support shaft, 12. Support block, 13. Insertion hole, 14. Insert rod, 15. Drive plate, 16. Driven plate, 17. Pressure plate, 18. Stamping part, 19. Support frame, 20. Hydraulic push rod, 21. Walking frame, 22. Guide rod. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings.

[0027] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: an impeller riveting processing mold, combined with the attached... Figure 1-2 It includes a base frame 1, on which supports 2 for bearing impellers and stamping components 18 for assembling impellers by riveting are respectively installed on both sides of the base frame 1. A bearing plate 3 is installed on the side of the support 2 near the stamping component 18. Multiple arc-shaped clips 4 are evenly connected on the bearing plate 3. The bearing plate 3 has an arc-shaped groove between two adjacent clips 4 to facilitate the bending and embedding of the impeller cover plate edge.

[0028] An impeller can be simply understood as consisting of two cover plates and blades evenly distributed between the cover plates. Using mechanical stamping, a stamped part 18 with a shape similar to the impeller cover plate is pressed onto the impeller. The impeller is assembled by riveting. During this process, the axial force on the impeller will be relatively uniform, thereby avoiding damage to the impeller and improving production efficiency.

[0029] The support plate 3, which serves as the support platform for the impeller before processing, contains some retaining strips 4. There are grooves between adjacent retaining strips 4, which facilitates the impeller to be embedded in the cover plate by bending the edge of the cover plate for positioning. These retaining strips 4 form multiple annular protrusions, which can support impellers and cover plates of different diameters within a certain range for placement.

[0030] Combined with appendix Figure 3-4and appendix Figure 7 The support 2 is equipped with a positioning mechanism to assist in the placement of the impeller. The positioning mechanism includes multiple screws 8 evenly arranged and rotating within the support 2. A drive assembly for synchronously rotating the screws 8 is also installed within the support 2. The drive assembly includes a support shaft 11 rotatably connected to the support 2. One end of the support shaft 11 extends into the support 2 and is fitted with a drive disc 15. Driven discs 16 are mounted close to each other at their respective ends. Multiple guide rods 22 are connected to the edges of both the drive disc 15 and the driven disc 16. The drive disc 15, through the ends of its guide rods 22, is embedded into the gaps between adjacent guide rods 22 of the driven disc 16, achieving a transmission effect between the support shaft 11 and the screws 8. Figure 2 and appendix Figure 5 The support shaft 11 extends to the outside of the support 2 at the end away from the drive disk 15 and is connected to a hand drive structure for easy rotation by hand. The hand drive structure includes a support block 12, which is connected to the end of the support shaft 11. The support block 12 is provided with multiple insertion holes 13. A plug rod 14 is installed on the support block 12, which passes through the insertion holes 13 and can be flexibly installed and removed from the support block 12. A screw sleeve 9 is threadedly connected to the screw rod 8. Multiple sliding grooves 5 are connected to the bearing plate 3. A stop plate 10 is connected to the screw sleeve 9, the end of which passes through the sliding groove 5 and can abut against the edge of the impeller cover plate and slide against the bearing plate 3.

[0031] Since the bending dimensions of the cover plate edge are generally small, to prevent the impeller from moving radially when compressed, an auxiliary positioning mechanism is added inside the support 2. The movement of this mechanism is manually controlled in this specification; however, in actual use, it can be electrically controlled depending on the site conditions and requirements. In this specification, a long insert rod 14 is inserted into the insertion hole 13 at the end of the support shaft 11, and force is applied to rotate the support shaft 11. The drive disc 15, which contains guide rods 22 on the support shaft 11, is then turned... The driven disc 16, which also contains a set of guide rods 22, rotates, thereby causing the screw 8 carrying the driven disc 16 to rotate. The screw sleeve 9 on the screw 8 has a limiting condition formed by the abutment plate 10 connected to it being embedded in the slide groove 5 of the bearing plate 3. Therefore, the screw sleeve 9 can only carry the abutment plate 10 to move along the slide groove 5. From the outside of the support 2, the abutment plates 10 are either far apart or close together. When they are close together and one side is pressed against the edge of the impeller cover plate, they can help the bearing plate 3 to fasten the impeller and prevent the impeller from moving along its radial surface.

[0032] Combined with appendix Figure 1-4The base frame 1 is equipped with a traveling assembly that supports the stamping component 18 and drives it to move on one side of the bearing plate 3 to perform impeller stamping and riveting. The traveling assembly includes a hydraulic push rod 20 installed in the base frame 1. A support frame 19 is installed on the moving end of the hydraulic push rod 20. A pressure plate 17 for installing the stamping component 18 is installed on the top of the support frame 19. Traveling frames 21 are connected to both sides of the pressure plate 17 and are slidably connected to the base frame 1 by being embedded in the base frame 1 at their bottom ends.

[0033] The pressure plate 17 is a moving part of the relevant stamping equipment. The stamping equipment includes stamping machines, etc., which are all existing technologies. Therefore, the specific structure and technology of the stamping equipment will not be described in detail here. The difference of the pressure plate 17 is that it has a structure on one side that is adapted to the installation of the stamping component 18. The pressure plate 17 mainly moves on the side of the impeller and the bearing plate 3 by being carried by the hydraulic push rod 20. The stamping component 18 is driven by the traveling component and moves towards the bearing plate 3. The pressure provided by the hydraulic push rod 20 forces the cover plate and blade of the impeller to be riveted together.

[0034] Combined with appendix Figure 3-4 and appendix Figure 6 The support 2 is equipped with a buffer assembly that provides pressure protection for the bearing plate 3. The buffer assembly includes multiple dampers 7. Multiple support plates 6 are evenly installed in the support 2. The dampers 7 are installed between the bearing plate 3 and the support plates 6.

[0035] Since most impellers are large in size but thin in plate, and there are many transmission parts between the bearing plate 3 and the support 2, in order to protect them during the pressure process, some dampers 7 are evenly arranged between the bearing plate 3 and the support 2 to relieve excessive pressure.

[0036] In specific implementation, the device is installed on a relevant workbench or stamping equipment via a base frame 1. The pressure plate 17, which houses the stamping component 18, is part of the stamping equipment. The stamping component 18 is always installed on the pressure plate 17, provided that the specifications of the processed impeller remain unchanged. When assembling the impeller, the roughly assembled impeller is first placed on the bearing plate 3, with the edge of one side of the cover plate embedded in the annular groove as much as possible. This slightly fixes the impeller in place. Then, the insert rod 14 on the outside of the support 2 is held to rotate the support shaft 11. At this moment, the abutment plate 10 around the impeller will move towards it until it is firmly against it. Next, the operation of the hydraulic push rod 20 is used to move the stamping component 18 closer to the impeller. When it contacts the cover plate, appropriate force is applied to rivet the impeller into shape. After completion, the pressure plate 17 returns to its original position, the support shaft 11 is reversed, the abutment plate 10 releases the impeller, and it can be removed.

[0037] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A mold for riveting impellers, characterized in that, include: The base frame (1) is provided with a support (2) for bearing the impeller and a stamped component (18) for assembling the impeller by riveting on both sides above the base frame (1); The support (2) is provided with a bearing plate (3) on the side near the stamping part (18). Multiple arc-shaped clips (4) are evenly connected on the bearing plate (3). The bearing plate (3) has an arc-shaped groove between two adjacent clips (4) to facilitate the bending and embedding of the impeller cover edge. The support (2) is provided with a positioning mechanism to assist in the placement of the impeller. The support (2) is equipped with a buffer component that provides pressure protection for the bearing plate (3); The base frame (1) is equipped with a walking assembly that supports the stamping component (18) and drives it to move on one side of the bearing plate (3) to perform impeller stamping and riveting.

2. The impeller riveting die according to claim 1, characterized in that: The positioning mechanism includes multiple screws (8) evenly arranged in the support (2) and in a rotating state. A drive assembly for driving the screws (8) to rotate synchronously is installed in the support (2). A screw sleeve (9) is threadedly connected to the screw (8). Multiple sliding grooves (5) are connected to the bearing plate (3). A stop plate (10) is connected to the screw sleeve (9) with its end passing through the sliding groove (5), which can abut against the edge of the impeller cover plate and slide against the bearing plate (3).

3. The impeller riveting die according to claim 2, characterized in that: The drive assembly includes a support shaft (11), which is rotatably connected to a support (2). One end of the support shaft (11) extends into the support (2) and is fitted with a drive disc (15). A driven disc (16) is fitted at one end of each screw (8) close to each other. Multiple guide rods (22) are connected to the edges of both the drive disc (15) and the driven disc (16). The drive disc (15) is embedded in the gap between adjacent guide rods (22) of the driven disc (16) through the end of the guide rod (22) it contains, thereby realizing the transmission effect between the support shaft (11) and the screw (8). The end of the support shaft (11) away from the drive disc (15) extends to the outside of the support (2) and is fitted with a hand-drive structure that facilitates the rotation of the support shaft (11) by hand.

4. The impeller riveting die according to claim 3, characterized in that: The hand-drive structure includes a support block (12), which is connected to the end of the support shaft (11). The support block (12) has multiple insertion holes (13), and the support block (12) is equipped with insertion rods (14) that pass through the insertion holes (13) and can be flexibly installed and removed from the support block (12).

5. The impeller riveting die according to claim 1, characterized in that: The buffer assembly includes multiple dampers (7), and multiple support plates (6) are evenly installed inside the support (2). The dampers (7) are installed between the bearing plate (3) and the support plate (6).

6. The impeller riveting die according to claim 1, characterized in that: The walking assembly includes a hydraulic push rod (20) installed in the base frame (1). A support frame (19) is installed on the moving end of the hydraulic push rod (20). A pressure plate (17) for installing a stamping component (18) is installed on the top of the support frame (19). A walking frame (21) is connected to both sides of the pressure plate (17) by means of a bottom end embedded in the base frame (1) and slidingly connected to the base frame (1).

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