CN217019262U - Machining deformation control device for large thin-wall titanium alloy welding cylinder - Google Patents
Machining deformation control device for large thin-wall titanium alloy welding cylinder Download PDFInfo
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- CN217019262U CN217019262U CN202220403840.2U CN202220403840U CN217019262U CN 217019262 U CN217019262 U CN 217019262U CN 202220403840 U CN202220403840 U CN 202220403840U CN 217019262 U CN217019262 U CN 217019262U
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Abstract
The utility model discloses a machining deformation control device of a large thin-wall titanium alloy welding barrel, which comprises an inner diameter supporting tool and an outer diameter control tool, wherein the inner diameter supporting tool and the outer diameter control tool are both composed of a supporting frame, adjustable bolts and a conformal top plate, the supporting frame is of a cylindrical gridding structure, the adjustable bolts are distributed on the supporting frame in a matrix shape, the conformal top plate is arranged at the end part of the free end of the adjustable bolt, the conformal top plate is an arc-shaped plate, and the curvature radius of the conformal top plate is the same as the radius of the titanium alloy welding barrel. The mechanical processing deformation control device for the large thin-wall titanium alloy welding cylinder can realize dynamic adjustment of the outline dimension and accurate control of small-area deformation in the processing process of the titanium alloy cylinder.
Description
Technical Field
The utility model belongs to the technical field of deformation control of thin-wall welded cylinders, and relates to a mechanical processing deformation control device of a large thin-wall titanium alloy welded cylinder.
Background
The titanium alloy has the excellent performances of low density, high specific strength, corrosion resistance and the like, and is widely applied to the military field of aviation, aerospace, weapons, ships and the like. The titanium alloy cylinder is in service in a seawater corrosion environment for a long time and performs high-speed reciprocating motion, and the requirements on the dimensional accuracy and the dimensional stability of cylinder parts are high. The titanium alloy cylinder has the wall thickness of 5mm and the diameter of 2100mm, and because the length-thickness ratio is large, a component is easy to generate instability deformation under the welding residual stress, the processing precision of a product is influenced, and the titanium alloy cylinder cannot be assembled with other workpieces in the subsequent assembly process.
The titanium alloy barrel is formed by welding a rolled plate, the welding strength of a welding part is lower than that of a titanium alloy body, a large amount of welding stress exists in the welding seam, the rough machining allowance is increased by the method adopted at present, a tool is supported by clamping in the finish machining process, after machining is finished, the workpiece is deformed due to the fact that large residual stress is generated in machining, the size cannot meet the technical requirements, the phenomenon that the size of the part is out of tolerance and scrapped often occurs, and huge economic loss is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a machining deformation control device for a large thin-wall titanium alloy welding cylinder, which can dynamically and accurately control the machining deformation of the thin-wall titanium alloy welding cylinder at multiple points.
The technical scheme includes that the machining deformation control device of the large thin-wall titanium alloy welding barrel comprises an inner diameter supporting tool and an outer diameter control tool, wherein the inner diameter supporting tool and the outer diameter control tool are respectively composed of a supporting frame, adjustable bolts and a shape following top plate, the supporting frame is of a cylindrical gridding structure, the adjustable bolts are distributed on the supporting frame in a matrix shape, the shape following top plate is installed at the end portion of the free end of each adjustable bolt, the shape following top plate is an arc-shaped plate, and the curvature radius of the shape following top plate is the same as that of the titanium alloy welding barrel.
The support frame is formed by connecting the annular ribs and the longitudinal ribs in a staggered manner, the adjustable bolts are installed on staggered points of the annular ribs and the longitudinal ribs and are in threaded connection with the support frame, and the conformal top plate is in threaded connection with the adjustable bolts.
The inner diameter supporting tool is composed of a supporting frame A, an adjustable bolt A and a shape following top plate A, the supporting frame A is formed by welding a ring rib A and a longitudinal rib A in a staggered mode, the adjustable bolt A is installed on a staggered point of the ring rib A and the longitudinal rib A, and the shape following top plate A is arranged outside the supporting frame A and is in threaded connection with the free end of the adjustable bolt A.
The outer diameter control tool is composed of a support frame B, an adjustable bolt B and a shape following top plate B, the support frame B is composed of a ring rib B and a longitudinal rib B in a staggered welding mode, the adjustable bolt B is installed on a staggered point of the ring rib B and the longitudinal rib B, and the shape following top plate B is arranged inside the support frame B and is in threaded connection with the free end of the adjustable bolt B.
The wall thickness of the support frame is 1.5-2.5 times of that of the titanium alloy welding cylinder.
The machining deformation control device has the beneficial effects that the machining deformation control device of the thin-wall titanium alloy welding barrel is formed by the inner diameter supporting tool and the outer diameter control tool, the inner diameter supporting tool and the outer diameter control tool are both formed by the supporting frame, the adjustable bolt and the conformal top plate, the conformal top plate is an arc-shaped plate and is attached to the inner wall and the outer wall of the barrel in the machining process, acting force in the direction opposite to that of the machining tool is applied to the titanium alloy thin-wall barrel, and the rigidity of the titanium alloy thin-wall barrel is enhanced; the adjustable bolts distributed in a matrix shape can be adjusted in real time according to the deformation size of the barrel, so that the titanium alloy thin-wall barrel is uniformly stressed, the deformation of the barrel is controllable, the deformation control device is arranged on the outer circle and the inner circle of the barrel, the barrel with thin wall thickness and large diameter can be prevented from being extruded and deformed by a cutter, the processing precision is improved, the dynamic adjustment of the overall dimension and the accurate control of small-area deformation in the processing process of the titanium alloy barrel are realized, the deformation problem in the processing process of the titanium alloy thin-wall barrel is well solved, the machining precision and the product percent of pass are improved, and the adjustable bolts can be widely applied to the machining of aviation thin-wall barrel parts, ship launching devices and pressure-resistant shells.
Drawings
FIG. 1 is a schematic structural diagram of an inner diameter support tool in a machining deformation control device of a large thin-wall titanium alloy welded cylinder according to the utility model;
FIG. 2 is a schematic structural diagram of an outer diameter control tool in the machining deformation control device for the large thin-wall titanium alloy welded cylinder according to the present invention;
FIG. 3 is a schematic view of a local structure of a mechanical processing deformation control device of a large thin-wall titanium alloy welded cylinder according to the present invention.
In the figure, 1 is an inner diameter supporting tool, 2 is an outer diameter control tool, 3 is a titanium alloy welding cylinder, 11 is a support frame A, 12 is an adjustable bolt A, 13 is a conformal top plate A, 21 is a support frame B, 22 is an adjustable bolt B, 23 is a conformal top plate B, 111 is an annular rib A, 112 is a longitudinal rib A, 211 is an annular rib B, 212 is a longitudinal rib B.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The utility model relates to a mechanical processing deformation control device of a large thin-wall titanium alloy welding cylinder, which comprises an inner diameter supporting tool 1 and an outer diameter control tool 2, wherein the inner diameter supporting tool 1 and the outer diameter control tool 2 are respectively composed of a support frame, an adjustable bolt and a shape following top plate, the wall thickness of the support frame is 2 times of that of the titanium alloy welding cylinder 3, the support frame is of a cylindrical gridding structure, the adjustable bolts are distributed on the support frame in a matrix shape, the shape following top plate is arranged at the free end part of the adjustable bolt, the shape following top plate is an arc-shaped plate, and the curvature radius of the shape following top plate is the same as that of the titanium alloy welding cylinder 3 (see figure 3).
The support frame is composed of an annular rib and a longitudinal rib which are connected in a staggered mode, the adjustable bolt is installed on a staggered point of the annular rib and the longitudinal rib and is in threaded connection with the support frame, and the conformal top plate is in threaded connection with the adjustable bolt.
The inner diameter supporting tool 1 is composed of a supporting frame A11, an adjustable bolt A12 and a conformal top plate A13, the supporting frame A11 is composed of a ring rib A111 and a longitudinal rib A112 in a staggered welding mode, the adjustable bolt A12 is installed on a staggered point of the ring rib A111 and the longitudinal rib A112, and the conformal top plate A13 is arranged outside the supporting frame A11 and in threaded connection with the free end of the adjustable bolt A12.
Outer diameter control frock 2 comprises support frame B21, adjustable bolt B22 and following shape roof B23, and support frame B21 comprises ring muscle B211 and the crisscross welding of indulging muscle B212, and adjustable bolt B22 is installed on the crisscross point of ring muscle B211 and indulging muscle B212, and following shape roof B23 sets up inside support frame B21, with adjustable bolt B22 free end threaded connection.
The machining deformation control device for the large thin-wall titanium alloy welded cylinder is used for machining the phi 2100_ phi 2068X 1100 titanium alloy thin-wall welded cylinder and is made of TC4, and the machining deformation control device comprises the following steps:
step 4, after the first shaping heat treatment, performing semi-finish machining on the titanium alloy cylinder by using a vertical common lathe, selecting a hard alloy knife YG813 to firstly lathe the outer circle of the cylinder, then removing an inner diameter supporting tool 1, installing an outer diameter control tool 2 on the outer circle of the cylinder, and finally selecting a hard alloy knife YG6A to lathe the inner circle of the cylinder, wherein the reserved machining amount of the inner hole of the cylinder is 1 mm;
step 5, secondary shaping heat treatment, namely putting the titanium alloy welding cylinder and the inner diameter supporting tool 1 into a vacuum heat treatment furnace, heating to 750 ℃ at the speed of 160 ℃ 00, preserving heat for 140min, and finally cooling to below 200 ℃ along with the furnace and discharging;
and 6, performing finish machining on the titanium alloy barrel by adopting a vertical numerical control lathe, firstly installing the outer diameter control tool 2 on the outer circle of the barrel, selecting a hard alloy knife YG6A to lathe the inner circle of the barrel, after the drawing requirement is met, installing the inner diameter support tool 1 in the barrel, and selecting a hard alloy knife YG813 to lathe the outer circle of the barrel by taking the inner diameter of the barrel as a reference so as to meet the drawing requirement.
And the formed cylinder body is detected, the smooth finish of the inner circle and the outer circle reaches Ra0.8, the roundness of the titanium alloy cylinder body is 0.02mm, and the cylindricity is 0.03mm, so that the requirement on machining precision is met.
Claims (5)
1. The utility model provides a machining deformation control device of large-scale thin wall titanium alloy welding barrel, its characterized in that, support frock (1) and external diameter control frock (2) including the internal diameter, internal diameter supports frock (1) and external diameter control frock (2) and comprises support frame, adjustable bolt and shape following roof, and the support frame is the latticed structure of tube-shape, and adjustable bolt is the matrix form and distributes on the support frame, and the shape following roof is installed at adjustable bolt free end tip, and the shape following roof is the arc, and the radius of curvature of shape following roof is the same with titanium alloy welding barrel radius.
2. The device for controlling the mechanical processing deformation of the large thin-wall titanium alloy welding cylinder according to claim 1, wherein the support frame is formed by connecting annular ribs and longitudinal ribs in a staggered manner, the adjustable bolt is installed at the staggered point of the annular ribs and the longitudinal ribs and is in threaded connection with the support frame, and the conformal top plate is in threaded connection with the adjustable bolt.
3. The machining deformation control device for the large thin-wall titanium alloy welded cylinder according to claim 2, characterized in that the inner diameter support tool (1) is composed of a support frame A (11), an adjustable bolt A (12) and a shape following top plate A (13), the support frame A (11) is composed of a ring rib A (111) and a longitudinal rib A (112) in a staggered welding mode, the adjustable bolt A (12) is installed on a staggered point of the ring rib A (111) and the longitudinal rib A (112), and the shape following top plate A (13) is arranged outside the support frame A (11) and is in threaded connection with a free end of the adjustable bolt A (12).
4. The machining deformation control device for the large thin-wall titanium alloy welded cylinder according to claim 2, characterized in that the outer diameter control tool (2) consists of a support frame B (21), an adjustable bolt B (22) and a shape following top plate B (23), the support frame B (21) consists of a ring rib B (211) and a longitudinal rib B (212) which are welded in a staggered manner, the adjustable bolt B (22) is installed at a staggered point of the ring rib B (211) and the longitudinal rib B (212), and the shape following top plate B (23) is arranged inside the support frame B (21) and is in threaded connection with a free end of the adjustable bolt B (22).
5. The mechanical processing deformation control device for the large thin-wall titanium alloy welding cylinder body as claimed in claim 1, wherein the wall thickness of the support frame is 1.5-2.5 times of that of the titanium alloy welding cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220403840.2U CN217019262U (en) | 2022-02-25 | 2022-02-25 | Machining deformation control device for large thin-wall titanium alloy welding cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220403840.2U CN217019262U (en) | 2022-02-25 | 2022-02-25 | Machining deformation control device for large thin-wall titanium alloy welding cylinder |
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| Publication Number | Publication Date |
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| CN217019262U true CN217019262U (en) | 2022-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220403840.2U Active CN217019262U (en) | 2022-02-25 | 2022-02-25 | Machining deformation control device for large thin-wall titanium alloy welding cylinder |
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- 2022-02-25 CN CN202220403840.2U patent/CN217019262U/en active Active
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