Long-shaft impeller machining tool
By combining the base, impeller, shaft, limiting components, and moving components, the problem of fixing long-shaft impellers in machining is solved, achieving precise positioning and adjustment, and improving machining accuracy and stability.
Patent Information
- Application Number
- CN202520082365.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-01-14
AI Technical Summary
Existing impeller machining fixtures cannot meet the machining requirements of long-shaft impellers, and existing jigs cannot restrict the position of the bottom of the long shaft, resulting in vibration of the long shaft and a decrease in accuracy during machining.
It adopts a combination structure of base, impeller, shaft, limiting component, limiting block and moving component. The position of the long shaft impeller is effectively limited by the limiting component and limiting block, and precise control and self-locking are achieved by using rotating component, worm gear and worm to prevent vibration.
This achieves effective support and fixation of the long-shaft impeller, improves machining accuracy and stability, avoids vibration during machining, and enhances machining efficiency.
Smart Images
Figure CN223684919U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of impeller, especially a long shaft impeller machining frock. BACKGROUND
[0002] In prior art, impeller refers to the disk equipped with moving blades, which is a component of impulse steam turbine rotor. Some impellers are composed of disk and rotating blades installed thereon, and some impellers are integrated structure. Due to the particularity of the blade surface of impeller, it is generally necessary to use five-axis machining center for machining. The efficiency and precision of frock will directly affect the machining efficiency and precision of five-axis machining center.
[0003] Compared with ordinary impeller, long shaft impeller is integrated with shaft and impeller, and long shaft impeller often has no inner hole. During five-axis milling process, long shaft impeller is difficult to clamp, and special frock is needed, which brings great test to the machining of long shaft impeller. At present, the existing impeller machining frock is applicable to impeller separated from shaft. For long shaft impeller, the shaft needs to be sunk into the inside of frock during machining process. The existing frock cannot meet the machining of long shaft impeller. Meanwhile, the existing clamp cannot limit the position of the bottom of long shaft, so that the long shaft has no fixing effect during machining process, resulting in vibration of long shaft and decline of machining precision. SUMMARY
[0004] The embodiment of the present application provides a long shaft impeller machining frock, which solves the problem that the shaft needs to be sunk into the inside of frock during machining process in prior art. The existing frock cannot meet the machining of long shaft impeller. Meanwhile, the existing clamp cannot limit the position of the bottom of long shaft, so that the long shaft has no fixing effect during machining process, resulting in vibration of long shaft and decline of machining precision.
[0005] The technical scheme adopted by the embodiment of the present application is as follows.
[0006] A long shaft impeller machining frock, comprising a base, an impeller arranged on the base, a shaft arranged on the impeller, a limiting piece for limiting the position of the impeller, a limiting block for limiting the shaft, and a moving piece for driving the limiting block to limit the position of the shaft; the limiting piece is arranged on the base; a first groove is arranged on the base; the first groove corresponds to the shaft; a plurality of limiting blocks are arranged on the base in uniform array with the first groove as the center; the limiting blocks slide along the first groove; a second groove is arranged on the sidewall of the first groove; and the moving piece is arranged in the second groove.
[0007] As a further improvement of the above technical scheme, a first rod is arranged in the first groove; the first rod penetrates the limiting piece; and a plurality of first rods are arranged in circumferential array.
[0008] As a further improvement of the above technical solution: a third groove is formed in the limiting block; an inclined surface is formed on the third groove; and the inclined surface is in contact with the bottom round edge of the shaft body.
[0009] As a further improvement of the above technical solution: the moving part comprises a rotating part, a worm gear arranged on the rotating part, and a worm arranged to rotate the worm gear; the rotating part rotates in the first groove; the worm gear is arranged in the second groove; the worm is arranged in the second groove; and the worm is in mesh with the worm gear.
[0010] As a further improvement of the above technical solution: a threaded groove is formed in the rotating part; the side wall of the limiting block is in threaded connection with the threaded groove; and the rotating part rotates to drive the limiting block to move up and down.
[0011] As a further improvement of the above technical solution: a hexagonal groove is formed on the side wall of the worm.
[0012] The one or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
[0013] 1. The base, impeller, shaft body, limiting part, limiting block and moving part are adopted, so that the long shaft impeller can be effectively supported and fixed during machining, and the machining problem caused by sinking of the shaft body into the tool is avoided; the limiting part and the limiting block are arranged to effectively limit the position of the long shaft impeller, and vibration of the long shaft during machining is avoided, so that the machining precision is improved. Specifically, the limiting block slides along the first groove, the side wall of the limiting block is in threaded connection with the threaded groove, so that the limiting block can move up and down when the rotating part rotates, thereby limiting the position of the bottom of the shaft body; the first rod is arranged in the first groove, and the first rod is arranged in the limiting part, so that the limiting block can move up and down; the third groove is formed in the limiting block, and the inclined surface is formed on the third groove, and the inclined surface is in contact with the bottom round edge of the shaft body, so that the limiting block can better adapt to the shape of the long shaft impeller, and the stability during machining is improved; the rotating part, worm gear and worm are arranged to realize accurate control of the limiting block. The rotating part rotates in the first groove, the worm gear is arranged in the second groove, the worm is arranged in the second groove, and the worm is in mesh with the worm gear. This structure enables the tool to realize accurate positioning and adjustment during machining, and self-locking can be realized; the hexagonal groove is formed on the side wall of the worm, so that the worm can be rotated, and the position of the shaft body is limited to prevent vibration during machining. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a structural schematic view of the long shaft impeller machining tool.
[0015] Figure 2 It is a structural schematic view of the long shaft impeller machining tool.
[0016] Figure 3 It is a sectional view of the long shaft impeller machining tool of the utility model.
[0017] In the figure: 1, base; 11, first slot; 12, second slot; 13, first rod; 2, impeller; 3, shaft body; 4, limiting piece; 5, limiting block; 51, third slot; 52, inclined surface; 6, moving piece; 61, rotating piece; 611, threaded groove; 62, worm wheel; 63, worm; 631, hexagonal slot. DETAILED DESCRIPTION
[0018] The long shaft impeller machining tool provided in the embodiment of the application solves the problem in the prior art that the shaft needs to be sunk into the inside of the tool during machining, and the current tool cannot meet the machining of the long shaft impeller; meanwhile, the current clamp cannot limit the position of the bottom of the long shaft, so that the long shaft is not fixed during machining, the long shaft vibrates and the machining precision is reduced.
[0019] The technical scheme in the embodiment of the application is to solve the above problem, and the general idea is as follows
[0020] In order to better understand the above technical scheme, the above technical scheme will be described in detail in combination with the drawings of the specification and the specific embodiments.
[0021] A long shaft impeller machining tool, comprising a base 1, an impeller 2 arranged on the base 1, a shaft body 3 arranged on the impeller 2, a limiting piece 4 for limiting the position of the impeller 2, a limiting block 5 for limiting the shaft body 3, and a moving piece 6 for driving the limiting block 5 to limit the position of the shaft body 3; the limiting piece 4 is arranged on the base 1; the base 1 is provided with a first slot 11; the first slot 11 corresponds to the shaft body 3; the limiting block 5 is uniformly arranged with a plurality of first slots 11 as the center; the limiting block 5 slides along the first slot 11; the sidewall of the first slot 11 is provided with a second slot 12; and the moving piece 6 is arranged in the second slot 12.
[0022] The first slot 11 is provided with a first rod 13; the first rod 13 is arranged in the limiting piece 4; and the first rod 13 is circumferentially arranged with a plurality of first rods 13.
[0023] The limiting block 5 is provided with a third slot 51; the third slot 51 is provided with an inclined surface 52; and the inclined surface 52 is in contact with the bottom round edge of the shaft body 3.
[0024] The moving piece 6 comprises a rotating piece 61, a worm wheel 62 arranged on the rotating piece 61, and a worm 63 for driving the worm wheel 62 to rotate; the rotating piece 61 rotates in the first slot 11; the worm wheel 62 is arranged in the second slot 12; the worm 63 is arranged in the second slot 12; and the worm 63 is in mesh with the worm wheel 62.
[0025] A threaded groove 611 is formed in the rotary member 61, and the side wall of the limiting block 5 is threadedly connected with the threaded groove 611; the rotary member 61 rotates to drive the limiting block 5 to move up and down.
[0026] A hexagonal groove 631 is formed in the side wall of the worm 63.
[0027] The base 1, the impeller 2, the shaft body 3, the limiting member 4, the limiting block 5 and the moving member 6 and the like structures can effectively support and fix the long-shaft impeller 2 during the machining process, avoiding the machining problem caused by the sinking of the shaft body 3 into the inside of the tooling; by setting the limiting member 4 and the limiting block 5, the position of the long-shaft impeller 2 is effectively limited, avoiding the vibration of the long shaft during the machining process, thereby improving the machining precision. Specifically, the limiting block 5 slides along the first groove 11, the side wall of the limiting block 5 is threadedly connected with the threaded groove 611, so that the limiting block 5 can move up and down when the rotary member 61 rotates, thereby realizing the limitation of the position of the bottom of the shaft body 3; the first rod 13 is arranged in the first groove 11, the first rod 13 is arranged in the limiting member 4, so that the limiting block 5 can move up and down; the third groove 51 is formed in the limiting block 5, and the inclined surface 52 is formed on the third groove 51, the inclined surface 52 is in contact with the bottom round edge of the shaft body 3, so that the limiting block 5 can better adapt to the shape of the long-shaft impeller 2, improving the stability during the machining process; the precise control of the limiting block 5 is realized by the rotary member 61, the worm wheel 62 and the worm 63. The rotary member 61 rotates in the first groove 11, the worm wheel 62 is arranged in the second groove 12, the worm 63 is arranged in the second groove 12, and the worm 63 is engaged with the worm wheel 62. This structure can realize accurate positioning and adjustment during the machining process, and can realize self-locking at the same time; the hexagonal groove 631 is formed in the side wall of the worm 63, so as to facilitate the rotation of the worm 63.
[0028] Due to the adoption of the base 1, the impeller 2, the shaft body 3, the limiting piece 4, the limiting block 5 and the moving piece 6 and other structures, the long shaft impeller 2 can be effectively supported and fixed during the machining process, and the machining problem caused by the sinking of the shaft body 3 into the tooling is avoided; by setting the limiting piece 4 and the limiting block 5, the position of the long shaft impeller 2 is effectively limited, and the vibration of the long shaft during the machining process is avoided, thereby improving the machining precision. Specifically, the limiting block 5 slides along the first groove 11, the side wall of the limiting block 5 is threadedly connected with the threaded groove 611, so that the limiting block 5 can move up and down when the rotating piece 61 rotates, thereby realizing the limitation of the position of the bottom of the shaft body 3; the first rod 13 is arranged in the first groove 11, the first rod 13 is arranged in the limiting piece 4, so that the limiting block 5 can move up and down; the third groove 51 is arranged in the limiting block 5, and the inclined surface 52 is arranged on the third groove 51, the inclined surface 52 is in contact with the bottom round edge of the shaft body 3, so that the limiting block 5 can better adapt to the shape of the long shaft impeller 2, and the stability during the machining process is improved; the precise control of the limiting block 5 is realized through the rotating piece 61, the worm wheel 62 and the worm 63. The rotating piece 61 rotates in the first groove 11, the worm wheel 62 is arranged in the second groove 12, the worm 63 is arranged in the second groove 12, and the worm 63 is engaged with the worm wheel 62. This structure enables the tooling to realize accurate positioning and adjustment during the machining process, and self-locking can also be realized; the hexagonal groove 631 is arranged on the side wall of the worm 63, so that the worm 63 can be rotated, and the position of the shaft body 3 is limited to prevent vibration during machining.
[0029] Although the preferred embodiments of the present application have been described, those skilled in the art who have the basic inventive concept can make further changes and modifications to the embodiments. Therefore, the appended claims are intended to include the preferred embodiments and all changes and modifications falling within the scope of the present application.
[0030] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.
Claims
1. A machining fixture for a long-shaft impeller, characterized in that, The device includes a base (1), an impeller (2) mounted on the base (1), a shaft (3) mounted on the impeller (2), a limiting member (4) that restricts the position of the impeller (2), a limiting block (5) that restricts the shaft (3), and a moving member (6) that drives the limiting block (5) to restrict the position of the shaft (3); the limiting member (4) is mounted on the base (1); a first groove (11) is provided on the base (1); the first groove (11) corresponds to the shaft (3); a plurality of limiting blocks (5) are evenly arranged in an array with the first groove (11) as the center; the limiting blocks (5) slide along the first groove (11); a second groove (12) is provided on the side wall of the first groove (11); the moving member (6) is disposed in the second groove (12).
2. The long-shaft impeller machining fixture as described in claim 1, characterized in that, A first rod (13) is provided in the first groove (11); the first rod (13) passes through the limiting member (4); a plurality of the first rods (13) are arranged in a circumferential array.
3. The long-shaft impeller machining fixture as described in claim 1, characterized in that, The limiting block (5) has a third groove (51); the third groove (51) has an inclined surface (52); the inclined surface (52) is in contact with the bottom round edge of the shaft (3).
4. The long-shaft impeller machining fixture as described in claim 1, characterized in that, The moving part (6) includes a rotating part (61), a worm wheel (62) disposed on the rotating part (61), and a worm (63) that drives the worm wheel (62) to rotate; the rotating part (61) rotates within the first groove (11); the worm wheel (62) is disposed within the second groove (12); the worm (63) is disposed within the second groove (12); and the worm (63) meshes with the worm wheel (62).
5. The long-shaft impeller machining fixture as described in claim 4, characterized in that, The rotating component (61) has a threaded groove (611) inside; the side wall of the limiting block (5) is threadedly connected to the threaded groove (611); when the rotating component (61) rotates, it drives the limiting block (5) to move up and down.
6. The long-shaft impeller machining fixture as described in claim 4, characterized in that, The worm (63) has a hexagonal groove (631) on its side wall.