CN113664569A - Thin-wall cylindrical part outer surface machining clamp - Google Patents
Thin-wall cylindrical part outer surface machining clamp Download PDFInfo
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- CN113664569A CN113664569A CN202111237791.6A CN202111237791A CN113664569A CN 113664569 A CN113664569 A CN 113664569A CN 202111237791 A CN202111237791 A CN 202111237791A CN 113664569 A CN113664569 A CN 113664569A
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- mandrel
- rod
- support mandrel
- pressing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/103—Retention by pivotal elements, e.g. catches, pawls
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- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a thin-wall cylindrical part outer surface machining clamp which comprises a supporting mandrel, wherein the supporting mandrel is arranged on the supporting mandrel; a plurality of movable rods which are annularly distributed by taking the support mandrel as a central shaft; any one of the movable rods comprises a distal end moving in the radial direction of the support mandrel; a pressure plate disposed at any one of the distal ends; the mounting seat is arranged on the supporting mandrel and moves along the axial direction of the supporting mandrel; a drawbar disposed between any of said distal ends and said mounting socket; the two ends of the rod body of the traction rod are respectively hinged with the far end and the mounting seat. The clamp for processing the outer surface of the thin-wall cylindrical part can be used for clamping and positioning the thin-wall cylindrical part. An operator enables the mounting seat to move along the axial direction of the supporting mandrel, and then the traction rod drives all the far ends to move along the radial direction of the supporting mandrel, so that workpieces are clamped and loosened, the clamping requirements of thin-wall barrel pieces of different sizes are met, the machining efficiency is improved, and the machining cost is reduced.
Description
Technical Field
The invention relates to the field of mechanical manufacturing, in particular to a clamp for machining the outer surface of a thin-wall cylindrical part.
Background
The thin-wall barrel part is widely applied to the fields of vehicles, aviation, aerospace and the like. Bearing type thin-wall cylindrical parts such as aeroengine casings play a role in connecting, bearing, supporting and containing engines, so the requirements on machining precision and performance are higher. However, due to various reasons such as different shapes and sizes of the cavities in the casing and uneven wall thickness of the casing, such thin-walled tubular members are difficult to machine and have low machining efficiency.
At present, the inner surface and the outer surface of the thin-wall cylinder part adopt a turning process and a milling process, on one hand, the processing procedure of a single workpiece is complex and various, and a special clamp is often required to be arranged for clamping and positioning; on the other hand, the casings are produced in a large variety and mostly in small batches, and the application range of a single special fixture is narrow, so that manufacturers often need to prepare a large number of special fixtures with different models and different structures, the cost is high, the operation by workers is not convenient, and the processing efficiency and the processing quality are seriously affected.
Disclosure of Invention
The invention aims to provide a clamp for processing the outer surface of a thin-wall cylindrical part, which can meet the clamping and positioning requirements of thin-wall cylindrical parts of different types.
In order to achieve the above object, the present invention provides a thin-walled cylindrical member outer surface processing clamp, including:
a support mandrel;
a plurality of movable rods which are annularly distributed by taking the support mandrel as a central shaft; any one of the movable rods comprises a distal end moving in the radial direction of the support mandrel;
a pressure plate disposed at any one of the distal ends;
the mounting seat is arranged on the supporting mandrel and moves along the axial direction of the supporting mandrel;
a drawbar disposed between any of said distal ends and said mounting socket; the two ends of the rod body of the traction rod are respectively hinged with the far end and the mounting seat.
Preferably, any one of the movable rods comprises an outer rod and an inner rod; the outer rod and the inner rod are sleeved to form a telescopic rod structure; the end of the inner rod, which is far away from the outer rod, is the far end.
Preferably, the device further comprises a hub sleeved and fixed on the support mandrel; all the outer rods are fixed to the outer peripheral wall of the hub.
Preferably, the pressing plate is provided with a hinge shaft between the pressing plate and the far end; the axial direction of the articulated shaft is vertical to the axial direction of the supporting mandrel.
Preferably, the pressure plate comprises a positioning plate and a positioning seat; the positioning plate is provided with a strip-shaped pressing surface; the positioning seat is provided with a strip-shaped pressing strip and a hinged support arranged in the middle of the pressing strip in the length direction; the pressing strip and the pressing surface are respectively positioned on two pairs of side surfaces of the positioning plate; the length direction of the pressing strip and the length direction of the pressing surface are in the same direction.
Preferably, the pressing surface is a columnar arch surface made of rubber; the columnar arch surface protrudes towards one side away from the supporting mandrel.
Preferably, the periphery of the support mandrel is provided with an external thread; the mounting seat comprises a sliding sleeve in threaded fit with the supporting mandrel; the sliding sleeve is connected with a rotating handle.
Preferably, the number of all the pressing plates is four, and the four pressing plates are uniformly distributed around the support mandrel.
Preferably, a three-jaw chuck is also included; one axial end of the supporting mandrel is tightly matched in a central hole of the three-jaw chuck; the movable rod and the mounting seat are arranged at the other axial end of the support mandrel.
Preferably, a transition sleeve is further arranged between the support mandrel and the central hole; the supporting mandrel, the transition sleeve and the central hole are sequentially sleeved from inside to outside and are in interference fit.
Compared with the prior art, the clamp for processing the outer surface of the thin-wall cylindrical part, provided by the invention, comprises a support mandrel, a plurality of movable rods which are annularly distributed by taking the support mandrel as a central shaft, a mounting seat which is arranged on the support mandrel and moves along the axial direction of the support mandrel, and a traction rod which is arranged between any far end and the mounting seat.
In the clamp for processing the outer surface of the thin-wall cylindrical part, one end of a rod body of the movable rod is a far end, and the far end can move along the radial direction of the supporting mandrel to be close to the supporting mandrel and far away from the supporting mandrel. And a pressing plate is arranged at any one far end, and the pressing plate realizes clamping and positioning of the thin-wall barrel by pressing a workpiece, such as the inner wall of the thin-wall barrel. The draw bar is arranged between the far end and the mounting seat, and two ends of a rod body of the draw bar are respectively hinged with the far end and the mounting seat, so that an operator can quickly drive all the far ends to move by changing the axial position of the mounting seat along the supporting mandrel, and the workpiece is clamped and loosened.
The axial installation position of the movable rod on the support mandrel is used as an original point, and the length of the traction rod is unchanged, so that the second end of the traction rod drives the far end of the movable rod to be more away from the support mandrel along the radial direction of the support mandrel if the installation seat and the first end of the traction rod connected to the installation seat are closer to the original point. On the contrary, if the first ends of the mounting seat and the traction rod are farther away from the original point, the second end of the traction rod drives the distal end of the movable rod to be closer to the support mandrel along the radial direction of the support mandrel.
Therefore, the operator can make all the press plates move synchronously by adjusting the mounting seat
And when all the far ends and the pressure plates are radially close to the supporting mandrel along the supporting mandrel, the clamping and positioning requirements of the thin-wall barrel part with the smaller inner diameter are met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is an isometric view of a thin-walled cylindrical member outer surface machining fixture provided by an embodiment of the invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a cross-sectional view of FIG. 1;
FIG. 4 is a schematic view of the assembly of the mounting base, the telescoping cylinder, the pressure plate and the hub used in the embodiment of the present invention;
fig. 5 is a schematic structural diagram of a telescopic cylinder used in the embodiment of the present invention.
The device comprises a support mandrel 1, a movable rod 2, an outer rod 21, an inner rod 22, a large ring 221, a small ring 222, a limiting sliding groove 23, a limiting screw 24, a pressing plate 3, a positioning plate 31, a pressing surface 311, a positioning seat 32, a pressing bar 321, a hinge support 322, a traction rod 5, a hinge shaft 6, a sliding sleeve 7, a first sliding sleeve 71, a second sliding sleeve 72, a rotating handle 8, a hub 9, a three-jaw chuck 10, a transition sleeve 11, a gasket 12 and a nut 13.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 5, fig. 1 is an isometric view of a clamp for processing an outer surface of a thin-walled cylindrical member according to an embodiment of the present invention; FIG. 2 is a top view of FIG. 1; FIG. 3 is a cross-sectional view of FIG. 1; FIG. 4 is a schematic view of the assembly of the mounting base, the telescoping cylinder, the pressure plate and the hub used in the embodiment of the present invention; fig. 5 is a schematic structural diagram of a telescopic cylinder used in the embodiment of the present invention.
The invention provides a thin-wall cylindrical part outer surface machining clamp which comprises a supporting mandrel 1, a plurality of movable rods 2, a pressing plate arranged at the far end of any movable rod 2, a mounting seat arranged on the supporting mandrel 1 and a traction rod 5 arranged between any pressing plate and the mounting seat.
In the clamp for processing the outer surface of the thin-wall cylindrical part, all the movable rods 2 are arranged around the support mandrel 1 by taking the support mandrel 1 as a central shaft. For any one of the movable rods 2, the end of the rod body far away from the support mandrel 1 is a far end, and the far end moves along the radial direction of the support mandrel 1, including being far away from the support mandrel 1 and being close to the support mandrel 1 along the radial direction of the support mandrel 1. The pressing plate is arranged at the far end, and the far end can drive the pressing plate to move relative to the supporting core shaft 1 along the radial direction of the supporting core shaft 1, so that all the pressing plates clamp the workpiece. For example, the workpiece is sleeved with all the pressure plates, so that the workpiece is positioned by the outward bracing of all the pressure plates by utilizing the outward pressure exerted by all the pressure plates from the inside of the workpiece.
In addition, the mounting seat of the clamp for processing the outer surface of the thin-walled cylindrical part is arranged on the support mandrel 1, for example, the support mandrel 1 is sleeved or slidably mounted on one side of the support mandrel 1. A draw bar 5 is arranged between the mounting seat and any one of the far ends, so that when the mounting seat moves along the axial direction of the support mandrel 1, the mounting seat drives the far end to move through the draw bar 5.
For convenience of description, two ends of the rod body of the traction rod 5 are a first end and a second end respectively; the first end is hinged with the mounting seat, and the second end is hinged with the far end. Taking the axial installation position of the movable rod 2 on the support mandrel 1 as an origin, since the length of the traction rod 5 is unchanged, if the first ends of the installation seat and the traction rod 5 are closer to the origin, the second end of the traction rod 5 drives the distal end of the movable rod 2 to be further away from the support mandrel 1 along the radial direction of the support mandrel 1. On the contrary, when the first ends of the mounting seat and the traction rod 5 are farther away from the original point, the second end of the traction rod 5 drives the distal end of the movable rod 2 to be closer to the support mandrel 1 along the radial direction of the support mandrel 1. It can be seen that, in the clamp for processing the outer surface of the thin-wall cylindrical part, an operator drives the far end to apply acting force to a workpiece to be clamped by utilizing the displacement of the mounting seat along the axial direction of the support mandrel 1.
The clamp for processing the outer surface of the thin-wall cylindrical part can be used for clamping a workpiece with the characteristics of thin wall and cylinder. For such thin-wall cylinder, an operator can quickly drive all the far ends to move by changing the axial position of the mounting seat along the supporting mandrel 1, so as to clamp and loosen the workpiece. All the far ends are far away from the supporting mandrel 1 along the radial direction of the supporting mandrel 1, so that the clamping and positioning requirements of the thin-wall barrel part with larger inner diameter can be met; all the far ends are close to the supporting mandrel 1 along the radial direction of the supporting mandrel 1, and the clamping and positioning requirements of thin-wall cylinder parts with smaller inner diameters can be met.
The thin-wall cylindrical part outer surface processing clamp provided by the invention is further described below with reference to the accompanying drawings and an embodiment.
On the basis of the structure, the movable rod 2 of the clamp for processing the outer surface of the thin-wall cylindrical part can adopt a telescopic rod. Specifically, the movable rod 2 may include an outer rod 21 and an inner rod 22 that are sleeved with each other; the outer rod 21 is tubular, and the inner rod 22 can be tubular or solid rod-shaped; the axial direction of the outer rod 21 is parallel to the axial direction of the inner rod 22.
One of the outer rod 21 and the inner rod 22 of the movable rod 2 can be connected to the support mandrel 1, so that the support mandrel 1 and the movable rod 2 can be installed and positioned. Taking the example of the outer rod 21 being connected to the support mandrel 1, the outer rod 21 may be fixed to the support mandrel 1 or may be slidably connected to the support mandrel 1.
When the outer rod 21 is fixed to the support mandrel 1, the outer rod 21 and the support mandrel 1 are fixed to each other, and one end of the inner rod 22, which is away from the outer rod 21, is a far end. Since the inner rod 22 is inserted and slid in the outer rod 21, the distal end of the inner rod 22 can move along the axial direction of the inner rod 22, thereby achieving the purpose that the distal end is close to and far away from the support mandrel 1 along the radial direction of the support mandrel 1.
When the outer rod 21 is slidably connected to the support mandrel 1, the outer rod 21 and the support mandrel 1 can be axially engaged, so that the outer rod 21 and the support mandrel 1 have only a freedom of movement along the radial movement of the support mandrel 1. At this time, not only the telescopic rod structures of the outer rod 21 and the inner rod 22 can realize the movement of the distal ends relative to the support mandrel 1, but also the assembly relationship of the outer rod 21 and the support mandrel 1 can enable the distal ends to move relative to the support mandrel 1.
In consideration of the limited shaft diameter of the support mandrel 1, in various embodiments provided by the invention, the positioning connection between the movable rod 2 and the support mandrel 1 is preferably realized by fixedly connecting the outer rod 21 with the support mandrel 1.
In particular, the telescopic rod structure assembled by the outer rod 21 and the inner rod 22 may be a telescopic cylinder, in other words, the outer rod 21 refers to a cylinder body of the telescopic cylinder. The cylinder body of the telescopic cylinder can be provided with a limiting sliding groove 23 and a limiting screw 24 for restricting the stroke of the inner rod 22 in the cylinder body.
In addition, in order to fix all the outer rods 21 to the support mandrel 1 conveniently, the clamp for processing the outer surface of the thin-wall cylindrical part further comprises a hub 9 sleeved on the support mandrel 1. The hub 9 is fixedly connected with the support mandrel 1, the peripheral outer wall of the hub 9 can comprise a plurality of planes, and all the outer rods 21 are correspondingly arranged on the planes one by one. Taking the outer rod 21 as the cylinder body of the telescopic cylinder as an example, the plurality of telescopic cylinders can be respectively fastened and mounted on the plurality of planes on the peripheral side of the hub 9 by fasteners such as bolts.
The hub 9 is usually fixed to the axial middle of the support mandrel 1 by a rectangular spline, and the end face of the hub 9 can be clamped by parts such as a gasket 12 and a nut 13, so that the fixed connection strength between the hub 9 and the support mandrel 1 is improved.
In order to achieve better technical effects, in the clamp for processing the outer surface of the thin-wall cylindrical part, a hinged shaft 6 is arranged between the pressing plate 3 and the far end, and the axial direction of the hinged shaft 6 is vertical to the axial direction of the supporting mandrel 1 and is also vertical to the axial direction of the movable rod 2 at the far end. Since the distal end has only one degree of freedom of movement relative to the support mandrel 1, the hinged relationship of the pressure plate 3 and the distal end causes the pressure plate 3 to pivot about the hinge axis 6.
Referring to fig. 3, taking the axial vertical distribution of the support mandrel 1 as an example, the axial horizontal distribution of the articulated shafts 6 is obtained. For any one of the pressing plates 3, it can be turned around the hinge shaft 6, so as to be adapted to clamp workpieces having different inner wall shapes. The number of all the press plates 3 is usually set to three or more, for example, four press plates 3 are provided in fig. 1 and 2, and the four press plates 3 are uniformly distributed around the support mandrel 1.
For example, if the interior of the workpiece has a cylindrical cavity, the pressing plate 3 abuts against and presses the inner wall of the workpiece at vertically distributed angles; if the inside of the workpiece has a circular truncated cone-shaped cavity, the pressing plate 3 deflects in accordance with the inner wall of the workpiece, and the pressing surface 311 of the pressing plate 3 for pressing the workpiece can be ensured to be closely attached to the inner wall of the workpiece. Of course, for a part of the workpiece having an irregular inner wall shape, the pressing plate 3 can also be adapted to the deflection of the inner wall of the workpiece, thereby realizing that the pressing plate 3 clamps the workpiece at a more stable and reliable angle.
Therefore, by utilizing the movement of all the far ends relative to the supporting core shaft 1 and combining the hinged relation of the pressing plate 3 and the far ends, the outer surface machining clamp for the thin-wall cylindrical part can be applied to thin-wall cylindrical parts with different inner diameters and can also be adaptive to thin-wall cylindrical parts with different inner shapes, the clamping and positioning of various thin-wall cylindrical parts can be met without replacing the outer surface machining clamp for the thin-wall cylindrical part, the machining efficiency and the machining precision of the thin-wall cylindrical parts are improved, and the operation difficulty is reduced.
The workpiece is usually a thin-wall cylindrical part, and the thin-wall cylindrical part has the characteristics of thin wall and large axial dimension, so the pressing plate 3 adopted by the clamp for processing the outer surface of the thin-wall cylindrical part specifically comprises a positioning plate 31 and a positioning seat 32. The positioning plate 31 has a strip-shaped pressing surface 311, and the pressing surface 311 is used for attaching and pressing the inner wall of the thin-wall cylinder; the positioning seat 32 includes an elongated bead 321 and a hinge support 322 disposed at a middle portion of the bead 321 in a length direction.
The strip-shaped pressing strip 321 and the strip-shaped pressing surface 311 are distributed in the same direction, for example, the length directions of the pressing strip 321 and the pressing surface 311 are vertically distributed, so that the thin-walled tube with the vertically distributed central shaft can be better clamped. The strip-shaped pressing bar 321 and the strip-shaped pressing surface 311 are respectively located on two pairs of side surfaces of the positioning plate 31, specifically, the pressing bar 321 is positioned and installed on a side plate surface of the positioning plate 31 facing the support mandrel 1, and the pressing surface 311 is a side plate surface of the positioning plate 31 departing from the support mandrel 1.
The hinge support 322 is provided at the middle of the pressing bar 321 in the length direction, and is used to satisfy the installation of the hinge shaft 6 between the hinge support 322 and the distal end. Under the action of the hinge shaft 6, the hinge support 322 and the pressing bar 321, the acting force applied to the positioning plate 31 from the far end is uniformly distributed along the length direction of the positioning plate 31, so that the attaching and extruding effects of the positioning plate 31 and the pressing surface 311 thereof to the inner wall of the workpiece are improved.
In the above structure, since the distal end of the movable rod 2 needs to be both fixedly hinged to the hinge support 322 through the hinge shaft 6 and hinged to the end of the rod body of the drawbar 5, reference can be made to fig. 5. In fig. 5, the distal end of the movable rod 2 may be provided with a double ring structure, wherein one large ring 221 is used as a mounting hole of the hinge shaft 6, and the other small ring 222 is provided with the outer wall of the large ring 221 for satisfying the hinge mounting of the traction rod 5.
Further, in the clamp for processing the outer surface of the thin-walled cylindrical part, the pressing surface 311 of the positioning plate 31 is specifically a columnar arch surface made of rubber, and the columnar arch surface protrudes to one side away from the support mandrel 1. The pressing surface 311 made of rubber can increase the contact area and the friction force between the positioning plate 31 and the inner wall of the thin-wall cylinder, so that the thin-wall cylinder can be clamped more stably and safely, the impact and the damage to the thin-wall cylinder can be reduced, and the actual shape of the thin-wall cylinder can be better adapted to the proper deformation of the pressing surface 311.
In the turning process of the thin-wall cylinder, the temperature of the thin-wall cylinder is relatively high under the influence of the service environment, and for this reason, the positioning plate 31 may be a heat-resistant rubber plate or a heat-resistant rubber layer may be compounded on the surface of the positioning plate 31, so that the pressing surface 311 of the positioning plate 31 has a heat-resistant property.
The specific structure of the movable rod 2 and the pressing plate 3 of the clamp for processing the outer surface of the thin-walled cylindrical part is described above. As for the mount base which can be operated by the operator in the thin-walled cylindrical member outer surface machining jig, the following arrangement can be adopted.
The mounting seat of the thin-wall cylindrical part outer surface machining clamp comprises a sliding sleeve 7 sleeved with a supporting mandrel 1, wherein a threaded hole is formed in the sliding sleeve 7 and is used for being assembled with external threads located on the peripheral side of the supporting mandrel 1. The operator can rotate the sliding sleeve 7 to make the sliding sleeve 7 along the axial direction of the supporting mandrel 1.
Further, the sliding sleeve 7 is provided with a rotating handle 8, the rotating handle 8 can radially extend from the outer periphery of the sliding sleeve 7 to the sliding sleeve 7, and an operator can conveniently drive the sliding sleeve 7 to rotate quickly and easily through the rotating handle 8. Of course, the installation position of the rotating handle 8 on the sliding sleeve 7 should reasonably avoid the installation position of the traction rod 5 on the sliding sleeve 7, and a space for an operator to perform specific operation by hand is always reserved between the rotating handle 8 and the traction rod 5. For example, the sliding sleeve 7 comprises a first sliding sleeve 71 and a second sliding sleeve 72 which are coaxially arranged and relatively fixed, the rotating handle 8 is installed on the first sliding sleeve 71, the traction rod 5 is installed on the second sliding sleeve 72, and the first sliding sleeve 71 and the second sliding sleeve 72 are arranged in parallel with a preset thickness or interval.
The above-mentioned combination structure of the sliding sleeve 7 and the rotating handle 8 can be regarded as a thread wheel. The thread wheel disc is operated by manpower, energy consumption can be reduced, pollution to workpieces caused by the clamp for machining the outer surface of the thin-wall cylindrical part can be avoided, based on the wheel disc structure of the thread wheel disc, the force required by the clamp for clamping and loosening the workpieces is not large, and machining precision and machining quality can be effectively guaranteed.
In addition, the clamp for processing the outer surface of the thin-wall cylindrical part further comprises a three-jaw chuck 10 assembled with the support mandrel 1.
A central hole is formed in the three-jaw chuck 10, and one axial end of the supporting mandrel 1 is inserted into and tightly matched with the central hole, so that the supporting mandrel 1 is fixedly connected with the three-jaw chuck 10; the other axial end of the support mandrel 1 is connected with the mounting seat and the movable rod 2.
The three-jaw chuck 10 simplifies the use of the clamp for machining the outer surface of the thin-wall cylindrical part on one hand, and simply, the three-jaw chuck 10 is generally applied to a lathe, so that the clamp for machining the outer surface of the thin-wall cylindrical part can be quickly positioned and connected to the lathe through the three-jaw chuck 10. On the other hand, the movable jaws of the three-jaw chuck 10 can assist in clamping and positioning the workpiece by the clamp for machining the outer surface of the thin-wall cylindrical part. For example, the workpiece refers to a thin-wall cylinder, and an operator can tightly support the inner wall of the thin-wall cylinder by using the pressing plate 3 of the clamp for processing the outer surface of the thin-wall cylinder, so that the thin-wall cylinder is positioned and clamped from the inside of the thin-wall cylinder, and a lathe can conveniently perform turning processing on the outer surface of the thin-wall cylinder; an operator can utilize the movable clamping jaws of the three-jaw chuck 10 to clamp and position the axial end part of the thin-wall cylinder part, so that the axial positioning strength of the thin-wall cylinder part is improved.
Compared with the pressing plate 3 of the clamp for processing the outer surface of the thin-wall cylindrical part, the three-jaw chuck 10 only has a positioning effect on the thin-wall cylindrical part, and the thin-wall cylindrical part is prevented from being damaged structurally or deformed seriously by the three-jaw chuck 10.
The three-jaw chuck 10 is mostly a standard component, so the size of the central hole of the three-jaw chuck 10 is a fixed value, and is usually much larger than the design size of the support mandrel 1 of the thin-wall cylindrical component outer surface machining clamp. In order to reasonably control the shaft diameter of the support mandrel 1 and reduce the material cost and the assembly difficulty of the support mandrel 1 and the quality of the clamp for processing the outer surface of the thin-wall cylindrical part, a transition sleeve 11 can be arranged between the support mandrel 1 and the central hole. The axial one end of support dabber 1 is located to the transition sleeve 11 cover, plays the effect of the local diameter of axle of increase support dabber 1 to under the prerequisite that does not increase the diameter of axle of support dabber 1, satisfy support dabber 1, transition sleeve 11 and centre bore three from inside to outside in proper order the cover establish with interference fit.
The thin-wall cylindrical part outer surface processing clamp provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (9)
1. A thin wall cylinder surface adds clamping apparatus which characterized in that includes:
a support mandrel (1);
a plurality of movable rods (2) which are annularly distributed by taking the support mandrel (1) as a central shaft; any one of the movable rods (2) comprises a far end moving along the radial direction of the support mandrel (1); any one of the movable rods (2) comprises an outer rod (21) and an inner rod (22); the outer rod (21) and the inner rod (22) are sleeved to form a telescopic rod structure; one end of the inner rod (22) departing from the outer rod (21) is the far end;
a pressure plate (3) arranged at any one of the far ends;
the mounting seat is arranged on the support mandrel (1) and moves along the axial direction of the support mandrel (1);
a drawbar (5) disposed between any of said distal ends and said mounting seat; the two ends of the rod body of the traction rod (5) are respectively hinged with the far end and the mounting seat.
2. The thin-walled cylindrical member outer surface machining jig according to claim 1, further comprising a hub (9) which is fitted around and fixed to the support mandrel (1); all the outer rods (21) are fixed to the outer peripheral wall of the hub (9).
3. The thin-walled cylindrical member outer surface machining jig according to claim 1 or 2, characterized in that an articulated shaft (6) is provided between the pressing plate (3) and the distal end; the axial direction of the articulated shaft (6) is vertical to the axial direction of the supporting mandrel (1).
4. The thin-walled cylindrical member outer surface machining jig according to claim 3, characterized in that the pressing plate (3) comprises a positioning plate (31) and a positioning seat (32); the positioning plate (31) is provided with a long pressing surface (311); the positioning seat (32) is provided with a strip-shaped pressing strip (321) and a hinged support (322) arranged in the middle of the pressing strip (321) in the length direction; the pressing strip (321) and the pressing surface (311) are respectively positioned on two pairs of side surfaces of the positioning plate (31); the length direction of the pressing strip (321) and the length direction of the pressing surface (311) are the same.
5. The thin-walled cylindrical member outer surface machining jig according to claim 4, characterized in that the pressing surface (311) is a columnar arch surface made of rubber; the columnar arch is convex towards the side facing away from the support mandrel (1).
6. The thin-walled cylindrical member outer surface machining jig according to claim 1, characterized in that an external thread is provided on the circumferential side of the support mandrel (1); the mounting seat comprises a sliding sleeve (7) in threaded fit with the supporting mandrel (1); the sliding sleeve (7) is connected with a rotating handle (8).
7. The thin-walled cylindrical outer surface machining fixture according to claim 1, characterized in that the number of all the pressing plates (3) is four, and the four pressing plates (3) are uniformly distributed around the support mandrel (1).
8. The thin walled cylinder outer surface machining fixture according to claim 1, further comprising a three-jaw chuck (10); one axial end of the support mandrel (1) is tightly matched in a central hole of the three-jaw chuck (10); the movable rod (2) and the mounting seat are arranged at the other axial end of the support core shaft (1).
9. The thin-walled cylindrical outer surface machining clamp according to claim 8, characterized in that a transition sleeve (11) is further arranged between the support mandrel (1) and the central hole; the supporting mandrel (1), the transition sleeve (11) and the center hole are sequentially sleeved from inside to outside in an interference fit mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111237791.6A CN113664569A (en) | 2021-10-25 | 2021-10-25 | Thin-wall cylindrical part outer surface machining clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111237791.6A CN113664569A (en) | 2021-10-25 | 2021-10-25 | Thin-wall cylindrical part outer surface machining clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113664569A true CN113664569A (en) | 2021-11-19 |
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| CN202111237791.6A Pending CN113664569A (en) | 2021-10-25 | 2021-10-25 | Thin-wall cylindrical part outer surface machining clamp |
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| CN114571237A (en) * | 2022-04-11 | 2022-06-03 | 天召名达门窗制造河北有限公司 | Anti-settling aluminum alloy window cutting equipment and machining process |
| CN115213471A (en) * | 2022-09-20 | 2022-10-21 | 西安成立航空制造有限公司 | Processing equipment for thin-wall barrel type double-layer casing of aerospace engine |
| CN115870562A (en) * | 2023-03-08 | 2023-03-31 | 贵州航宇科技发展股份有限公司 | Cutting anti-falling device and barrel cutting method |
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Application publication date: 20211119 |