CN217667916U - Bottom support device for internal turning of rocket tank bottom - Google Patents
Bottom support device for internal turning of rocket tank bottom Download PDFInfo
- Publication number
- CN217667916U CN217667916U CN202220855452.8U CN202220855452U CN217667916U CN 217667916 U CN217667916 U CN 217667916U CN 202220855452 U CN202220855452 U CN 202220855452U CN 217667916 U CN217667916 U CN 217667916U
- Authority
- CN
- China
- Prior art keywords
- pressing plate
- support
- screw
- vertical lathe
- bottom support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Jigs For Machine Tools (AREA)
- Gripping On Spindles (AREA)
- Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
Abstract
The utility model provides a bottom support device for internal turning of the bottom of a rocket tank, which comprises a bottom support and a fourth slide block, wherein the bottom support is used for supporting the bottom surface of the tank; the bottom support is connected with the vertical lathe chuck through the fourth sliding block. The bottom supporting device provided by the utility model is used for supporting the bottom surface of the storage box, thereby reducing the influence of clamping stress on the turning process effect of the inner shape of the box bottom.
Description
The application is filed on 31/8/2021 and is named as a port supporting device turned on the inner type of the bottom of a rocket tank, and the application number is the divisional application of a utility model patent of 202122073797.6.
Technical Field
The utility model relates to a carrier rocket tank processing field, concretely relates to bottom sprag device of interior type turning of rocket tank bottom of case.
Background
The bottom of the carrier rocket tank is a large-diameter thin-wall ellipsoidal shell, and the material of the bottom is generally an aluminum alloy plate which can be strengthened by thermal treatment. For example, chinese patent CN110640019A has a formula of an integral forming method for a large-diameter storage tank bottom with a hole flanging structure, and a tank bottom circular ring is obtained by adopting an integral forming mode of an aluminum alloy plate. However, the integrally formed blank cannot be directly applied to welding the bottom of the storage tank of the carrier rocket due to the limitations of technology, equipment, process and the like, and the inner and outer surfaces must be machined.
According to the technical process, the machining of the whole circular ring mainly comprises three procedures of inner shape, outer shape and circular hole. The processing of the inner shape as the first process mainly has two problems of large roundness deformation and weak thin-wall rigidity. The whole circular ring is subjected to internal stress accumulation after the technological processes of spinning or hydraulic forming, heat treatment strengthening and the like, is released in the natural aging process, and the irregular deformation of the product is large. In addition, in the processes of clamping, machining and hoisting of the ring, if a forced constraint mode is adopted, external deformation is easily introduced, the roundness deformation of a product is further increased, and the difficulty of subsequent appearance turning is increased.
In order to reduce the influence of clamping stress on the effect of the box bottom inner-type turning process, it is very important to design a bottom supporting device for inner-type turning of the rocket tank bottom.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a bottom supporting device for internal turning of the bottom of a rocket tank.
The utility model provides a port strutting arrangement of interior type turning of rocket tank bottom of case, a serial communication port, include: a support rod and a pressing plate; the upper end of the supporting rod is connected with the pressing plate; the lower end of the supporting rod is connected with the vertical lathe chuck through a first sliding block, and the first sliding block is used for driving the supporting rod to move along the radial direction of the vertical lathe chuck and is used for adaptively connecting the pressing plate with the outer edge of the bottom port of the box.
According to the utility model discloses an embodiment, the upper end of bracing piece with clamp plate threaded connection, the bracing piece runs through the clamp plate, and through clamp plate up end and lower terminal surface set up first nut and second nut respectively will the clamp plate with the bracing piece is fixed.
According to the utility model discloses an embodiment still includes: the height of the first screw rod and the second screw rod is adjustable; the lower ends of the first screw and the second screw are connected with a vertical lathe chuck through a second sliding block and a third sliding block respectively; the first screw, the support rod and the second screw are sequentially arranged from the center of the vertical lathe chuck to the outside along the same radial direction of the vertical lathe chuck; the upper ends of the first screw rod and the second screw rod are in contact with the lower end surface of the pressing plate and are used for supporting the pressing plate; the upper end of the supporting rod is in threaded connection with the pressing plate, the supporting rod penetrates through the pressing plate, and the supporting rod, the first screw rod, the second screw rod and the pressing plate are fixed through a third nut.
According to the utility model discloses an embodiment, including at least four port strutting arrangement is along circumference evenly distributed on the merry go round machine flower disc for support bottom of the case port.
Another aspect of the utility model provides a bottom support device for internal turning of the bottom of the rocket tank, which comprises a bottom support and a fourth slide block, wherein the bottom support is used for supporting the bottom surface of the tank; the bottom support is connected with the vertical lathe chuck through the fourth sliding block.
The utility model discloses a further aspect provides a bottom support device for internal turning of the bottom of a rocket tank, which comprises a bottom support, a first pressing plate, a second pressing plate, a first supporting rod, a second supporting rod, a third screw and a fourth screw, wherein the bottom support is used for supporting the bottom surface of the tank; the heights of the third screw and the fourth screw are adjustable; the upper ends of the first supporting rod and the second supporting rod respectively penetrate through the first pressing plate and the second pressing plate and are respectively connected with the first pressing plate and the second pressing plate through a fifth nut and a sixth nut, and the lower ends of the first supporting rod and the second supporting rod are respectively connected with a vertical lathe chuck through a fifth sliding block and a sixth sliding block; the third screw, the first support rod, the bottom support, the second support rod and the fourth screw are sequentially arranged from the center of the vertical lathe chuck to the outside along the radial direction of the vertical lathe chuck; the third screw and the fourth screw are placed on a flower disc of the vertical lathe, and the upper ends of the third screw and the fourth screw are respectively contacted with the lower end surfaces of one ends of the first pressing plate and the second pressing plate and are respectively used for supporting the first pressing plate and the second pressing plate; the left side surface and the right side surface of the bottom support are respectively provided with a groove; the other ends of the first pressing plate and the second pressing plate are respectively arranged in the grooves of the bottom support.
According to the utility model discloses an embodiment, the last side of bottom sprag is the arc to the arc of adaptation bottom of the case.
According to the utility model discloses an embodiment, including at least four bottom sprag device is along circumference evenly distributed on the merry go round machine flower disc.
Another aspect of the utility model provides a central support device of interior type turning of rocket tank bottom of case, include: the upper pressing block, the lower cushion block and the connecting piece are arranged on the upper die; the connecting piece is used for fixing the upper pressing block, the lower cushion block and the center of the box bottom with the vertical lathe chuck.
According to the utility model discloses an embodiment, the connecting piece includes: the connecting piece comprises a bolt and a fourth nut; the bolt sequentially penetrates through the vertical lathe chuck, the lower cushion block, the box bottom central position and the upper pressing block, and one side, away from the box bottom central position, of the upper pressing block is fixed by using a fourth nut.
According to the utility model discloses a lathe workstation of interior type turning of rocket tank bottom of the case adopts the little forced deformation clamping bottom of the case ring of flexible simple and easy frock, has reduced the clamping stress to the influence of clamping stress to bottom of the case interior type turning technology effect has been reduced. Furthermore, the utility model provides a central strutting arrangement of interior type turning of rocket tank bottom of case adopts combination formula frock design thinking, and is simple and convenient swift, easily adjustment. And the adaptability is strong, and the machine tool workbench can adapt to box bottom circular rings with different wall thicknesses and different deformation states.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification of the invention, illustrate exemplary embodiments of the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a perspective view of a bottom joint of a vertically turned chuck plate and a bottom of a rocket tank according to an embodiment of the present invention;
FIG. 2 is a top view of a bottom attachment of a vertically turned chuck of a rocket tank bottom according to an embodiment of the present invention;
FIG. 3 isbase:Sub>A cross-sectional view A-A of FIG. 2;
FIG. 4 is an enlarged view of B in FIG. 3;
FIG. 5 isbase:Sub>A cross-sectional view A-A of the interior turned vertical lathe chuck and bottom attachment ofbase:Sub>A rocket tank bottom according to one embodiment of the present invention;
FIG. 6 is an enlarged view of C in FIG. 5;
fig. 7 is an enlarged view of D in fig. 5.
Description of reference numerals:
1-vertical lathe pattern disc, 2-support component, 3-support rod, 4-press plate, 5-first slide block, 6-linear guide rail, 7-outer edge of bottom port of box, 8-central support device, 9-first nut, 10-second nut, 11-first screw rod, 12-second screw rod, 13-second slide block, 14-third slide block, 15-third nut, 16-bottom support, 17-fourth slide block, 18-upper press block, 19-lower cushion block, 20-connecting piece, 21-bolt, 22-fourth nut, 23-flanging, 24-first press plate, 25-second press plate, 26-first support rod, 27-second support rod, 28-fifth slide block, 29-sixth slide block 29, 30-third screw rod 30, 31-fourth screw rod.
Detailed Description
The features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention, for the purposes of illustrating the principles of the invention. Additionally, the components in the drawings are not necessarily to scale. For example, the dimensions of some of the structures or regions in the figures may be exaggerated relative to other structures or regions to help improve understanding of embodiments of the present invention.
The directional terms appearing in the following description are directions shown in the drawings and do not limit the specific structure of the embodiments of the present invention. In the description of the present invention, it should be noted that, unless otherwise stated, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as the case may be, by those of ordinary skill in the art.
Furthermore, the terms "comprises," "comprising," "includes," "including," "has," "having" or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a structure or component comprising a list of elements does not include only those elements but may include other mechanical components not expressly listed or inherent to such structure or component. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of another like element in an article or device comprising the element.
Spatially relative terms such as "under," "below," "…," "low," "above," "…," "high," and the like are used to facilitate description to explain the positioning of one element relative to a second element, indicating that these terms are intended to encompass different orientations of the device in addition to different orientations than those illustrated in the figures. Further, for example, the phrase "one element is over/under another element" may mean that the two elements are in direct contact, or that there is another element between the two elements. Furthermore, terms such as "first", "second", and the like, are also used to describe various elements, regions, sections, etc. and should not be taken as limiting. Like terms refer to like elements throughout the description.
In describing the present invention, it is possible to use only "rocket," "launch vehicle" or "missile" in a certain scenario description, which is for convenience of description only and the content is not limited to the specific words used. In general, rockets of the invention may include launch vehicles, missiles, space vehicles and similar products capable of launching a payload into the air. Those skilled in the art, in interpreting the above specific terms, should not be construed as limiting the rocket to only one of a launch vehicle or a missile, depending on the specific terms used in describing the scenario, thereby reducing the scope of the present invention.
It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by illustrating examples thereof.
FIG. 1 is a perspective view of a bottom joint of a vertically turned chuck plate and a bottom of a rocket tank according to an embodiment of the present invention; FIG. 2 is a top view of a bottom attachment of a vertically turned chuck of a rocket tank bottom according to an embodiment of the present invention; FIG. 3 isbase:Sub>A cross-sectional view A-A of FIG. 2; FIG. 4 is an enlarged view of B in FIG. 3; FIG. 5 isbase:Sub>A cross-sectional view A-A of the interior turned vertical lathe chuck and bottom attachment ofbase:Sub>A rocket tank bottom according to one embodiment of the present invention; FIG. 6 is an enlarged view of C in FIG. 5; fig. 7 is an enlarged view of D in fig. 5.
As shown in fig. 1, 2 and 3, the present invention provides a port support device for internal turning of rocket tank bottoms, comprising: a support bar 3 and a pressure plate 4. The upper end of bracing piece 3 is connected with clamp plate 4, and the lower extreme of bracing piece 3 is connected with merry go round machine flower disc 1 through first slider 5. The first sliding block 5 is used for driving the supporting rod 3 to move along the radial direction of the vertical lathe chuck 1 and is used for adaptively connecting the pressing plate 4 with the outer edge 7 of the bottom port of the box.
Specifically, the bottom of the carrier rocket tank is a large-diameter thin-wall ellipsoidal shell, and the material of the bottom is generally an aluminum alloy plate which can be strengthened by thermal treatment. The integrally formed blank cannot be directly applied to welding of the bottom of the storage box of the carrier rocket due to the limitations of technology, equipment, process and the like, and the inner and outer surfaces must be machined.
According to the technical process, the machining of the whole circular ring mainly comprises three procedures of inner shape, outer shape and circular hole. The processing of the inner mold as the first process mainly has two problems of large roundness deformation and weak thin-wall rigidity. The whole circular ring is subjected to internal stress accumulation after the technological processes of spinning or hydraulic forming, heat treatment strengthening and the like, and is released in the natural aging process, and the irregular deformation of the product is large. In addition, in the processes of clamping, machining and hoisting of the circular ring, if a forced constraint mode is adopted, external deformation is easily introduced, the roundness deformation of a product is further increased, and the difficulty of subsequent appearance turning is increased.
In this embodiment, the port supporting device turned on the inner shape of the rocket tank bottom adopts a clamping tank bottom ring slightly forced to deform by a flexible simple tool. The lower end of the support rod 3 is connected with the vertical lathe chuck 1 through a first slide block 5, and the upper end is connected with a press plate 4. And placing the box bottom port upwards on the vertical lathe chuck 1 and righting the position. The first sliding block 5 is moved along the radial direction of the vertical lathe chuck 1 to drive the supporting rod 3 and the pressing plate 4 to move towards the bottom of the case until the pressing plate 4 can be connected with the outer edge 7 of the bottom port of the case, so that the bottom of the case is fixed on the vertical lathe chuck 1. By adopting the port supporting device provided by the embodiment, the box bottom is fixed on the workbench, and the port of the box bottom is supported by the supporting component 2, so that the clamping stress is reduced, the influence of the clamping stress on the inner turning process effect of the box bottom is reduced, and the turning quality consistency is improved. The port supporting device provided by the embodiment supports the box bottom port, and can prevent the box bottom port from deforming during internal turning. In addition, the workbench adopts a combined tool design idea, is simple, convenient and quick, is easy to adjust, and has strong adaptability. The box bottom with different wall thicknesses and different deformation states can be adapted by moving the position of the supporting rod 3. The problem of whole bottom of the case profile precision turning deformation is solved.
Further, the vertical lathe chuck 1 is provided with a linear guide rail 6 along the radial direction of the vertical lathe chuck 1, and the first sliding block 5 drives the support rod 3 to move along the linear guide rail 6. The linear guide rail 6 is an inverted T-shaped groove formed in the chuck 1 of the vertical lathe, and correspondingly, the first sliding block 5 is an inverted T-shaped sliding block arranged in the groove.
In this embodiment, the linear guide rail may also be a T-shaped protrusion disposed on the vertical lathe chuck 1, and the corresponding first slider 5 is provided with a T-shaped groove matched with the linear guide rail 6.
As shown in fig. 3 and 4, according to an embodiment of the present invention, the upper end of the support rod 3 is screw-coupled to the pressing plate 4. The supporting rod 3 penetrates through the pressing plate 4, and the pressing plate 4 and the supporting rod 3 are fixed by respectively arranging a first nut 9 and a second nut 10 on the upper end face and the lower end face of the pressing plate 4.
Specifically, a linear guide 6 arranged along the radial direction of the vertical lathe chuck 1 moves the first slider 5 to drive the support rod 3 and the pressing plate 4 to move towards the bottom of the box until the pressing plate 4 can be connected with the outer edge 7 of the bottom port of the box. And loosening the first nut 9 and the second nut 10, adjusting the height of the pressing plate 4 to enable the circular ring at the bottom port of the box to be at the same height, and then screwing the first nut 9 and the second nut 10 to fix the pressing plate 4 and the supporting rod 3. The circular rings at the port of the box bottom are positioned at the same height, so that the position and the precision of subsequent internal turning can be ensured.
According to the utility model discloses an embodiment, 3 lower extremes of bracing piece and 5 threaded connection of first slider.
As shown in fig. 5 and 6, according to an embodiment of the present invention, the port supporting device includes a first screw 11 and a second screw 12 in addition to the supporting rod 3 and the pressing plate 4, and the first screw 11 and the second screw 12 are adjustable in height. The lower ends of the first screw 11 and the second screw 12 are respectively connected with the vertical lathe chuck 1 through a second slide block 13 and a third slide block 14, and the first screw 11, the support rod 3 and the second screw 12 are sequentially arranged from the center of the vertical lathe chuck outwards along the linear guide rail 6. The upper ends of the first screw 11 and the second screw 12 contact the lower end surface of the pressure plate 4 for supporting the pressure plate 4. The upper end of the supporting rod 3 is in threaded connection with the pressing plate 4, the supporting rod 3 penetrates through the pressing plate 4, and the supporting rod 3, the first screw rod 11, the second screw rod 12 and the pressing plate 4 are fixed through a third nut 15.
Specifically, the linear guide 6 arranged along the radial direction of the vertical lathe chuck 1 moves the first slider 5, the second slider 13 and the third slider 14 to drive the first screw 11, the support rod 3, the second screw 12 and the pressing plate 4 to move towards the bottom of the box until the pressing plate 4 can be connected with the outer edge 7 of the bottom port of the box. And loosening the third nut 15, adjusting the height of the pressing plate 4 to enable the circular ring at the bottom port of the box to be at the same height, adjusting the heights of the first screw rod 11 and the second screw rod 12 to enable the upper ends of the first screw rod 11 and the second screw rod 12 to be in contact with the lower end face of the pressing plate 4, and supporting the pressing plate 4. The third nut 15 is screwed down to fix the support rod 3, the first screw rod 11, the second screw rod 12 and the pressing plate 4. The first slider 5, the second slider 13 and the third slider 14 may be independent of each other, integrally formed or fixedly connected between adjacent sliders.
The vertical lathe chuck that this embodiment provided adopts lever principle, utilize bracing piece 3, height-adjustable's first screw 11, height-adjustable's second screw 12, clamp plate 4, third nut 15, first slider 5, a set of lever system is constituteed to second slider 13 and third slider 14, fix the bottom of the case on vertical lathe chuck, can prevent that type turning in-process bottom sprag 16 from sideslipping on vertical lathe chuck 1, it is more firm during messenger's follow-up type turning, make bottom of the case port ring be in same height, can guarantee the position and the precision of follow-up type turning.
Take the case bottom with the outward flange arranged at the outer edge of the case bottom port as an example. The port of the box bottom is welded with an outward flange, so that the box bottom does not need to be punched. One side of the pressing plate 4 close to the box bottom is arranged at the upper end of the outward flanging, and the upper end of the first screw 11 is contacted with the lower end face of the outward flanging to abut against the outward flanging. The upper end of the second screw 12 is contacted with the lower end face of the pressure plate 4 to abut against the pressure plate, and the third nut 15 is screwed, so that the support component 2 can support and fix the flanging, namely the bottom of the box. After turning is finished, the outward flanging welded at the port of the box bottom is cut off, so that the box bottom with the finished inner cutting can be obtained, and marks such as drilling holes and the like cannot be left on the box bottom.
It should be noted that the above is only one embodiment of the present invention, and is not intended to limit the present invention. For example, the lower ends of the first screw 11 and the second screw 12 may be directly placed on the chuck 1 without being connected to the chuck 1 via a slider.
According to an embodiment of the present invention, it comprises at least four port supporting devices 2 and a corresponding number of first sliders 5. The supporting component 2 is respectively connected with the vertical lathe chuck 1 through a first sliding block 5 and linear guide rails 6 which are uniformly arranged along the circumferential direction of the vertical lathe chuck 1 and correspond to the vertical lathe chuck in quantity. According to the conditions of roundness deformation, size and the like of the box bottom, the number of the supporting components 2 can be increased, and the stability during inner shape turning is improved.
Another aspect of the utility model provides a bottom sprag device of the type turning of rocket tank bottom. As shown in fig. 3, the bottom support means comprises a bottom support 16 and a fourth slider 17, the bottom support 16 being adapted to support the bottom surface of the tank. The bottom support 16 is connected with the vertical lathe chuck 1 through a fourth slide block 17.
Further, the upper side of the base support 16 is curved to accommodate the curvature of the bottom surface of the tank. The side surface on the bottom support 16 is adapted to the arc shape of the bottom surface of the box and is matched with the bottom surface of the box, so that the outward turning force in the inner turning process is prevented from extruding and deforming the outer wall of the circular ring.
Further, at least 4 bottom supporting devices can be included, so that the supporting force of the bottom support 16 to the box bottom can be increased, and the stability during inner turning is improved. The bottom support device can be arranged along the same radial direction as the port support device, so that the bottom support effect is better.
The bottom support device can also be directly fixed on the vertical lathe flower disc 1 through screws.
Further, the bottom support means may be arranged at a profile position 2/3 from the centre of the bottom of the tank.
As shown in fig. 5 and 7, another aspect of the present invention provides a bottom support device for internal turning of the bottom of a rocket tank bottom, comprising a bottom support 16, a first pressing plate 24, a second pressing plate 25, a first support rod 26, a second support rod 27, a third screw 30 and a fourth screw 31, wherein the bottom support 16 is used for supporting the bottom surface of the tank. The third screw 30 and the fourth screw 31 are adjustable in height. The upper ends of the first supporting rod 26 and the second supporting rod 27 respectively penetrate through the first pressing plate 24 and the second pressing plate 25 and are respectively connected with the first pressing plate 24 and the second pressing plate 25 through a fifth nut 32 and a sixth nut 33, and the lower ends of the first supporting rod 26 and the second supporting rod 27 are respectively connected with the vertical lathe chuck 1 through a fifth sliding block 28 and a sixth sliding block 29. The third screw 30, the first support rod 26, the bottom support 16, the second support rod 27 and the fourth screw 31 are sequentially arranged along the linear guide 6 from the center of the vertical lathe chuck 1 to the outside. The third screw 30 and the fourth screw 31 are placed on the vertical lathe chuck 1, and the upper ends of the third screw 30 and the fourth screw 31 are respectively contacted with the lower end faces of one ends of the first pressing plate 24 and the second pressing plate 25 and are respectively used for supporting the first pressing plate 24 and the second pressing plate 25. The left side surface and the right side surface of the bottom support 16 are respectively provided with a groove, and the ends, close to each other, of the first pressing plate 24 and the second pressing plate 25 along the radial direction of the vertical lathe chuck 1 are respectively arranged in the grooves of the bottom support.
Specifically, the linear guide 6 disposed along the radial direction of the vertical lathe disc 1 moves the fifth slider 28 and the sixth slider 29 to respectively drive the first support rod 26 and the second support rod 27 to move toward the bottom support 16 until one end of the first pressing plate 24 and one end of the second pressing plate 25 are respectively placed in two grooves of the bottom support 16. And loosening the fifth nut 32 and the sixth nut 33, adjusting the heights of the first pressing plate 24 and the second pressing plate 25 until the lower end faces of the first pressing plate 24 and the second pressing plate 25 press the bottom support 16 through two grooves of the bottom support 16, and adjusting the heights of the third screw 30 and the fourth screw 31 to enable the upper end faces of the third screw 30 and the fourth screw 31 to respectively contact the lower end faces of the first pressing plate 24 and the second pressing plate 25 to respectively support the first pressing plate 24 and the second pressing plate 25. The fifth nut 32 and the sixth nut 33 are tightened to fix the bottom support 16 to the vertical lathe disc 1. The bottom support 16 is fixed on the vertical lathe chuck 1 by using the first support rod 26, the second support rod 27, the third screw rod 30, the fourth screw rod 31, the first pressure plate 24 and the second pressure plate 25, so that the bottom support 16 can be prevented from sliding laterally on the vertical lathe chuck 1 in the internal type turning process.
In the present embodiment, the third screw 30 and the fourth screw 31 may be connected to the vertical lathe disc 1 by a slider.
The utility model discloses do not do specific restriction to the material of bottom sprag, size and the connected mode of merry go round machine flower disc etc..
Another embodiment of the present invention provides a center support device for inner turning of the bottom of a rocket tank. As shown in fig. 3, the center support device includes: an upper press block 18, a lower cushion block 19 and a connecting piece 20. The connecting piece 20 is used for fixing the upper pressing block 18, the lower cushion block 19 and the center of the box bottom with the vertical lathe chuck 1. Before the turning of the inner shape of the box bottom, a through hole is prefabricated in the center of the box bottom in advance. Before the box bottom is placed on the vertical lathe chuck 1, a lower cushion block 19 is arranged on the vertical lathe chuck, the box bottom is placed on the lower cushion block 19, the center of the box bottom corresponds to the lower cushion block 19, an upper pressing block 18 is arranged from the upper end of the center of the box bottom, and finally the upper pressing block 18, the box bottom center and the vertical lathe chuck 1 are fixedly connected through a connecting piece 20. When the type turning, the utility model provides a central support device can make the bottom of the case fix on the workstation more steadily, prevents that the bottom from taking place the skew, has reduced the bottom of the case and has rocked the influence to the turning effect. The upper pressing block 18 and the lower cushion block 19 can support the center of the box bottom, and the box bottom is prevented from being extruded and deformed when the box bottom and the vertical lathe chuck 1 are fixed and when the inner lathe is turned.
Further, the connector 20 includes a bolt 21 and a fourth nut 22. The bolt 21 penetrates through the vertical lathe chuck 1, the lower cushion block 19, the center of the bottom of the case and the upper pressing block 18 in sequence, and is fixed by using a fourth nut 22 on one side of the upper pressing block 18 far away from the center of the bottom of the case.
Further, a handwheel is provided at the upper end of the fourth nut 22 to facilitate the application of torque when tightening the fourth nut 22.
Further, to prevent loosening of the fourth nut 22 during inside turning, the direction of the thread helix on the fourth nut 22 is opposite to the inside turning direction. For example, turning in a right-hand manner, the threads on the fourth nut 22 are left-hand, and thus, the fourth nut 22 is not unscrewed during turning.
The above embodiments of the present invention can be combined with each other, and have corresponding technical effects.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The bottom support device for internal turning of the rocket tank bottom is characterized by comprising a bottom support and a fourth sliding block, wherein the bottom support is used for supporting the bottom surface of the tank; the bottom support is connected with the vertical lathe chuck through the fourth sliding block.
2. The base support apparatus of claim 1, wherein the upper side of the base support is curved to accommodate the curvature of the base of the tank.
3. The bottom support apparatus according to claim 1, comprising at least four bottom support apparatuses evenly distributed on the faceplate in a circumferential direction.
4. The bottom support apparatus of claim 1, wherein the bottom support is disposed at a profile location 2/3 from a bottom center.
5. The bottom supporting device according to claim 1, wherein the vertical lathe chuck is provided with a linear guide rail along the radial direction of the vertical lathe chuck, and the fourth sliding block drives the bottom support to move along the linear guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220855452.8U CN217667916U (en) | 2021-08-31 | 2021-08-31 | Bottom support device for internal turning of rocket tank bottom |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122073797.6U CN217991693U (en) | 2021-08-31 | 2021-08-31 | Port supporting device for internal turning of rocket tank bottom |
| CN202220855452.8U CN217667916U (en) | 2021-08-31 | 2021-08-31 | Bottom support device for internal turning of rocket tank bottom |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122073797.6U Division CN217991693U (en) | 2021-08-31 | 2021-08-31 | Port supporting device for internal turning of rocket tank bottom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217667916U true CN217667916U (en) | 2022-10-28 |
Family
ID=83743443
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220855506.0U Active CN218017130U (en) | 2021-08-31 | 2021-08-31 | Center support device for internal turning of rocket tank bottom |
| CN202122073797.6U Active CN217991693U (en) | 2021-08-31 | 2021-08-31 | Port supporting device for internal turning of rocket tank bottom |
| CN202220855452.8U Active CN217667916U (en) | 2021-08-31 | 2021-08-31 | Bottom support device for internal turning of rocket tank bottom |
| CN202220851881.8U Active CN219152158U (en) | 2021-08-31 | 2021-08-31 | Bottom support structure for internal turning of rocket tank bottom |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220855506.0U Active CN218017130U (en) | 2021-08-31 | 2021-08-31 | Center support device for internal turning of rocket tank bottom |
| CN202122073797.6U Active CN217991693U (en) | 2021-08-31 | 2021-08-31 | Port supporting device for internal turning of rocket tank bottom |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220851881.8U Active CN219152158U (en) | 2021-08-31 | 2021-08-31 | Bottom support structure for internal turning of rocket tank bottom |
Country Status (1)
| Country | Link |
|---|---|
| CN (4) | CN218017130U (en) |
-
2021
- 2021-08-31 CN CN202220855506.0U patent/CN218017130U/en active Active
- 2021-08-31 CN CN202122073797.6U patent/CN217991693U/en active Active
- 2021-08-31 CN CN202220855452.8U patent/CN217667916U/en active Active
- 2021-08-31 CN CN202220851881.8U patent/CN219152158U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN218017130U (en) | 2022-12-13 |
| CN217991693U (en) | 2022-12-09 |
| CN219152158U (en) | 2023-06-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110421368A (en) | A kind of turning tool and method of large thin-wall circular cone Al-alloy parts | |
| CN215393955U (en) | Inner support clamping device for large-sized cylinder part | |
| CN113814451B (en) | Self-adaptive tool and flexible clamping method for annular rotary thin-wall part | |
| CN216264643U (en) | Annular thin-wall part machining tool | |
| CN217667916U (en) | Bottom support device for internal turning of rocket tank bottom | |
| CN113751731A (en) | Inner-type turning process for bottom of rocket tank | |
| CN216298542U (en) | Machine tool workbench for internal turning of rocket tank bottom | |
| CN113249560A (en) | Heat treatment shape-preserving device for bottom of storage tank of carrier rocket | |
| CN205237418U (en) | Positioning fixture and conduit head bottom of case circumferential weld welding equipment | |
| CN115635343A (en) | Wall thickness compensation processing method for welding frame ring with super-large diameter | |
| CN109551008A (en) | A kind of thin-wall part brill reaming clamping tooling | |
| CN213136496U (en) | Universal clamping auxiliary supporting pad | |
| CN210451453U (en) | Barrel component longitudinal joint laser welding regulation and control device | |
| CN105127656A (en) | Positioning fixture and storage case girth welding equipment | |
| CN210358872U (en) | Stamping combined die | |
| CN216542036U (en) | Clamp for machining heat pipe groove | |
| CN221185664U (en) | Aluminum profile machining tool applied to numerical control machine tool | |
| CN219074986U (en) | Clamping tool for processing easily-deformed parts | |
| CN219234619U (en) | Clamp for thin-wall semiconductor parts | |
| CN220659111U (en) | Jig for forging and pressing | |
| CN215091647U (en) | Water heater water pipe head welding tool | |
| CN212822802U (en) | Technological equipment for machining nine holes in return disc of hydraulic axial plunger pump | |
| CN212192174U (en) | Aluminum profile machining clamp | |
| CN219025968U (en) | Clamping device for machining precise easily-deformed parts | |
| CN113926934A (en) | Flaring device for marine metal pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |