CN221984457U - A rocket engine ball socket nozzle male ball turning tool - Google Patents
A rocket engine ball socket nozzle male ball turning tool Download PDFInfo
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- CN221984457U CN221984457U CN202323455743.1U CN202323455743U CN221984457U CN 221984457 U CN221984457 U CN 221984457U CN 202323455743 U CN202323455743 U CN 202323455743U CN 221984457 U CN221984457 U CN 221984457U
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- 238000006748 scratching Methods 0.000 claims abstract description 5
- 230000002393 scratching effect Effects 0.000 claims abstract description 5
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 7
- 238000003754 machining Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 11
- 239000007787 solid Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
本实用新型涉及一种火箭发动机球窝喷管阳球车削工装。包括定位盘，压盘及压紧螺栓，所述定位盘对阳球端面及阳球大端最大外径进行支撑定位，定位盘上加工了台阶内孔，其孔径按照阳球大端最大外径进行加工并留有装配间隙，定位盘上还加工了螺纹孔；所述压盘将阳球压紧在定位盘上，压盘的内型面为内球面，其尺寸与阳球的球面尺寸相对应，压盘上设置与定位盘相同数量的螺栓装配通槽；所述压紧螺栓固定定位盘及压盘。所述压盘内球面与端面相交棱边处作倒圆角处理，防止压盘球面与端面相交处的棱边划伤阳球球面。本实用新型保证了装夹时阳球球面受力均匀，有效避免因受力不均而引起的装夹变形，同时消除了夹伤已加工球面的风险。
The utility model relates to a tool for turning the male ball of a ball-socket nozzle of a rocket engine. It comprises a positioning plate, a pressure plate and a clamping bolt. The positioning plate supports and positions the end face of the male ball and the maximum outer diameter of the large end of the male ball. A stepped inner hole is processed on the positioning plate, and its diameter is processed according to the maximum outer diameter of the large end of the male ball and an assembly gap is left. A threaded hole is also processed on the positioning plate. The pressure plate presses the male ball onto the positioning plate. The inner profile of the pressure plate is an inner spherical surface, and its size corresponds to the spherical size of the male ball. The pressure plate is provided with the same number of bolt assembly slots as the positioning plate. The clamping bolt fixes the positioning plate and the pressure plate. The edges where the inner spherical surface of the pressure plate intersects with the end face are chamfered to prevent the edges where the spherical surface of the pressure plate intersects with the end face from scratching the spherical surface of the male ball. The utility model ensures that the spherical surface of the male ball is subjected to uniform force during clamping, effectively avoids clamping deformation caused by uneven force, and eliminates the risk of clamping the processed spherical surface.
Description
Technical Field
The utility model relates to the technical field of metal machining, in particular to a tool for turning a ball socket spray pipe Yang Qiu of a rocket engine.
Background
The internal and external shapes of the male ball of the ball socket spray pipe of a certain medium solid rocket engine are shown in figure 1, and for the finish turning process of the internal and external shapes of the male ball, the existing turning method comprises the following steps: and (3) loading an aluminum blanking cover at the inner column surface of the big end of the male ball, clamping the quenched spherical surface of the male ball by four claws, enabling the end surface of the big end of the male ball to lean against the end surface of the claw, enabling the outer dimension of the big end of the male ball to be within a design tolerance range in Che Yangqiu, turning around a workpiece, loading and pressing the stepped surface of the small end of the male ball by using a tool, and aligning the inner and outer dimensions of the spherical surface of the big end of the male ball to be within the design tolerance range.
Although the clamping deformation in the turning process can be effectively avoided in the clamping mode, the structure of the male ball shown in fig. 1 is different from other male balls, the large end inner shape of the male ball is only provided with an inner conical surface, the large end opening part is not provided with a cylindrical surface structure, an aluminum blanking cover cannot be installed at the large end inner surface, the male ball can be deformed to a large extent by directly clamping the spherical surface by four claws, the length of the outer cylindrical surface of the middle section of the male ball shown in fig. 1 is small, and the small end step surface cannot be clamped by using a pressing plate, so that the male ball shown in fig. 1 cannot be processed by adopting the original processing method.
Disclosure of Invention
Technical problem to be solved by the utility model
The utility model provides a tool for turning a ball socket spray pipe Yang Qiu of a rocket engine, which solves the problem that the existing turning method cannot clamp a male ball similar to that shown in fig. 1, and can effectively reduce the deformation of the male ball in the turning process, thereby ensuring the dimensional accuracy of the inner and outer shapes of the male ball.
In order to solve the technical problems, the utility model adopts the technical proposal
A rocket engine ball socket spray tube Yang Qiu turning tool comprises a positioning disk 1, a pressure disk 2 and a compression bolt 3.
The positioning disc 1 supports and positions the maximum outer diameter of the end face and the large end of the male ball, a step inner hole 11 is processed on the male ball positioning disc, the aperture of the step inner hole is processed according to the maximum outer diameter of the large end of the male ball, an assembly gap is reserved, and a threaded hole 12 is processed on the positioning disc;
The male ball is pressed on the positioning disc by the pressing disc 2, the inner surface of the pressing disc is an inner spherical surface 22, the size of the inner spherical surface corresponds to that of the male ball, 4 uniformly distributed bolt assembly through grooves (21) are formed in the pressing disc, and the number of the bolt assembly through grooves is the same as that of threaded holes in the positioning disc.
The compression bolt 3 is used for fixing the positioning disc 1 and the pressure disc 2.
Further, the inner spherical surface of the pressure plate 2 and the intersecting edge of the end surface are processed by rounding 23, so that the edge of the intersecting part of the spherical surface of the pressure plate and the end surface is prevented from scratching Yang Qiu spherical surfaces.
Further, the positioning disc is processed into a circular ring shape, so that the weight of the tool is reduced.
Further, the number of the uniformly distributed threaded holes machined on the positioning disk 1 is 4 or more.
Further, a round hole with a smaller size on one side of the bolt assembly through groove 21 on the pressure plate is machined according to the large diameter size of the threads of the bolt, an assembly gap is reserved, a round hole with a larger size on the other side is machined according to the maximum outer diameter size of the head of the bolt, and an assembly gap is reserved, so that the pressure plate is convenient to assemble and disassemble in the machining process.
The utility model has the technical effects that
The utility model skillfully utilizes the processed spherical surface and the end surface of the male ball to carry out clamping and positioning, and the contact mode between the inner molded surface of the pressure plate and the spherical surface of the male ball is surface contact, so that the uniform stress of the spherical surface Yang Qiu during clamping is ensured, the clamping deformation caused by uneven stress is effectively avoided, and the risk of clamping the processed spherical surface is eliminated.
Drawings
Fig. 1: yang Qiu inner and outer schematic views;
fig. 2a: a tooling structure positioning disc schematic diagram;
Fig. 2b: a tooling structure pressure plate schematic diagram;
Fig. 3: a tooling and male ball assembly schematic diagram;
Wherein: the device comprises a positioning disc 1, a pressing disc 2, a pressing bolt 3, a step inner hole 11, a threaded hole 12, a bolt assembly through groove 21, an inner spherical surface 22 and a rounding angle 23.
Detailed Description
The utility model relates to a tool for turning the inner and outer shapes of ball socket spray pipes Yang Qiu of a medium-sized solid rocket engine, which mainly comprises a positioning disc, a pressure plate and a compression bolt, as shown in figure 2. Threaded holes for assembling bolts everywhere are processed on the positioning disc, the step inner hole is processed according to the maximum outer diameter size of the big end of the male ball, the inner molded surface of the pressure plate is a spherical surface, and the size is processed according to the spherical surface size of the male ball; in order to prevent the edge at the intersection of the spherical surface of the pressure plate and the end surface from scratching the Yang Qiu spherical surface, the edge at the intersection is subjected to rounding treatment; the round hole with smaller size on one side of the through groove is processed according to the large diameter size of the screw thread of the bolt and is provided with an assembly gap, and the round hole with larger size on the other side is processed according to the maximum outer diameter size of the head of the bolt and is provided with an assembly gap, so that the pressing disc is convenient to assemble and disassemble in the processing process. The utility model skillfully utilizes the processed spherical surface and the end surface of the male ball to carry out clamping and positioning, ensures that the spherical surface of the male ball is uniformly stressed in the processing process, and simultaneously eliminates the risk of clamping the processed spherical surface. The assembly of the tool and the male ball is shown in fig. 3.
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 2 and 3, the turning tool for the inner and outer shapes of the ball socket nozzle Yang Qiu of the medium solid rocket engine comprises a positioning disc, a pressure plate and a compression bolt.
The positioning disk has the functions of supporting and positioning the end face of the male ball and the maximum outer diameter of the large end of the male ball so as to quickly align in the process of clamping the male ball, the aperture of the step inner hole on the positioning disk of the male ball is processed according to the maximum outer diameter of the large end of the male ball and an assembly gap is reserved, the positioning disk is clamped on a four-jaw chuck of a lathe spindle when in use, the clamping position is the outer circle of the positioning disk, the step inner hole and the inner end face of the positioning disk are aligned, and the radial and end face jumping amount is ensured to be not more than 0.01mm. The through hole in the middle part on the positioning disk has the effect of lightening the weight of the tool, and is convenient for an operator to clamp and align the tool in the processing process.
The function of the pressure plate is to compress Yang Qiu on the positioning plate. During processing, the outer circle of the small end of the main shaft is clamped by the four-jaw chuck Yang Qiu, an aluminum blanking cover is arranged in an inner hole of the small end, clamping deformation is prevented, the large end spherical surface and the inner surface are turned to be within a designed dimensional tolerance range after alignment, then the male ball is turned around, and the inner and outer shapes of the small end are finely turned by using the fixture to clamp Yang Qiu. The inner molded surface of the pressing plate is a spherical surface, and the size of the inner molded surface of the pressing plate is processed according to the spherical surface size of the male ball, so that the contact mode between the inner molded surface of the pressing plate and the spherical surface of the male ball is surface contact, uniform stress of the spherical surface Yang Qiu during clamping is ensured, and deformation of the male ball caused by uneven stress is avoided; the intersection edge of the inner molded surface of the pressure plate and the end surface is rounded, so that the pressure plate is prevented from scratching Yang Qiu spherical surfaces during clamping; the round hole with smaller size on one side of the through groove is processed according to the large diameter size of the screw thread of the bolt, an assembly gap is reserved, the round hole with larger size on the other side is processed according to the maximum outer diameter size of the head of the bolt, and the assembly gap is reserved.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
The utility model is processed into objects and is successfully applied to the finish turning process of the inner and outer shapes of the ball socket nozzle Yang Qiu of a medium-sized solid rocket engine. The problem that the male ball cannot be clamped in the finish turning process is solved, the tool is convenient to install and align, the contact mode between the inner molded surface of the tool pressing disc and the male ball surface is surface contact, the uniform stress of the Yang Qiu ball surface during clamping is ensured, clamping deformation caused by uneven stress is effectively avoided, the risk of clamping the machined ball surface is eliminated, and the inner molded surface, the external molded surface and the surface quality of the machined male ball meet the design technical requirements.
Claims (5)
1. A rocket engine ball socket spray tube Yang Qiu turning frock, its characterized in that: comprises a positioning disc (1), a pressure disc (2) and a compression bolt (3),
The positioning disc (1) supports and positions the end face of the male ball and the maximum outer diameter of the large end of the male ball, a step inner hole (11) is processed on the male ball positioning disc, the aperture of the step inner hole is processed according to the maximum outer diameter of the large end of the male ball, an assembly gap is reserved, and threaded holes (12) are symmetrically formed in the positioning disc;
The pressing plate (2) is used for pressing Yang Qiu on the positioning plate, the inner surface of the pressing plate is an inner spherical surface (22), the size of the inner spherical surface corresponds to that of the male ball, and the pressing plate is provided with bolt assembly through grooves (21) with the same number as the positioning plate;
The compression bolt (3) is used for fixing the positioning disc (1) and the pressure disc (2).
2. The rocket engine ball socket nozzle Yang Qiu turning tool according to claim 1, wherein: the inner spherical surface and the end surface of the pressure plate (2) are processed by rounding (23) at the intersecting edge, so that the edge at the intersecting position of the spherical surface and the end surface of the pressure plate is prevented from scratching Yang Qiu spherical surfaces.
3. The rocket engine ball socket nozzle Yang Qiu turning tool according to claim 1, wherein: the positioning disk is processed into a circular ring shape so as to reduce the weight of the tool.
4. A rocket engine ball socket nozzle Yang Qiu turning fixture as recited in claim 3, wherein: the number of the uniformly distributed threaded holes machined on the positioning disc (1) is 4 or more.
5. A rocket engine ball socket nozzle Yang Qiu turning fixture as recited in claim 3, wherein: the round hole with smaller size on one side of the bolt assembly through groove (21) on the pressure plate is machined according to the large diameter size of the screw thread of the bolt, an assembly gap is reserved, the round hole with larger size on the other side is machined according to the maximum outer diameter size of the head of the bolt, and the assembly gap is reserved, so that the pressure plate can be conveniently assembled and disassembled under the condition that the compression bolt is not disassembled in the machining process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323455743.1U CN221984457U (en) | 2023-12-19 | 2023-12-19 | A rocket engine ball socket nozzle male ball turning tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323455743.1U CN221984457U (en) | 2023-12-19 | 2023-12-19 | A rocket engine ball socket nozzle male ball turning tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221984457U true CN221984457U (en) | 2024-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323455743.1U Active CN221984457U (en) | 2023-12-19 | 2023-12-19 | A rocket engine ball socket nozzle male ball turning tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221984457U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117620728A (en) * | 2023-12-19 | 2024-03-01 | 内蒙古航天红岗机械有限公司 | A kind of rocket engine socket nozzle male ball turning tool |
-
2023
- 2023-12-19 CN CN202323455743.1U patent/CN221984457U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117620728A (en) * | 2023-12-19 | 2024-03-01 | 内蒙古航天红岗机械有限公司 | A kind of rocket engine socket nozzle male ball turning tool |
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