CN109648363B - Turning clamping structure for thin-wall long pipe fitting with non-linear variable inner and outer diameters - Google Patents
Turning clamping structure for thin-wall long pipe fitting with non-linear variable inner and outer diameters Download PDFInfo
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- CN109648363B CN109648363B CN201811463922.0A CN201811463922A CN109648363B CN 109648363 B CN109648363 B CN 109648363B CN 201811463922 A CN201811463922 A CN 201811463922A CN 109648363 B CN109648363 B CN 109648363B
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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
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
- B23Q3/064—Work-clamping means adapted for holding workpieces having a special form or being made from a special material for holding elongated workpieces, e.g. pipes, bars or profiles
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Abstract
The invention discloses a turning and clamping structure for a thin-wall long pipe fitting with a non-linear variable inner and outer diameters, and belongs to the technical field of aviation manufacturing. The invention comprises a locking nut I (1), an expansion sleeve (2), a plunger (3), a steel ball (4), a sector plate (5), a belleville spring (6), a screw (7), a wedge rod (8), a locking nut II (9), a main shaft (10) and an inner hexagonal set screw (11). The invention realizes the positioning and fixing of the inner hole by adjusting the fit degree of the sector plate (5) and the inner curved surface of the processed thin-wall long pipe fitting with the inner and outer diameters changing in a nonlinear way in real time. The structure of the invention improves the processing efficiency of the thin-wall long pipe fitting with the inner and outer diameter non-linear change, and simultaneously converts the non-linear curved surface processing with extremely weak rigidity into the processing with good structural rigidity, thereby effectively reducing the deformation in the processing of parts, simplifying the whole processing process flow and improving the processing quality.
Description
Technical Field
The invention discloses a turning and clamping structure for a thin-wall long pipe fitting with a non-linear variable inner and outer diameters, and belongs to the technical field of aviation manufacturing.
Technical Field
In the existing processing of thin-wall pipe fittings which are positioned and clamped by inner holes, a plurality of core rods are generally adopted to realize the positioning of products, and the method is suitable for processing cylindrical surfaces with low position precision requirements. However, when the size of the inner circle positioning surface is processed to be changed in a nonlinear way, particularly when the size of the inner diameter structure and the outer diameter structure are changed in a nonlinear way, the method adopting the adaptive core rod is not suitable any more. Because the nonlinear change of the inner and outer diameter structure sizes leads to a clearance between the positioning surfaces all the time, the clearance can cause partial deformation when a thin-wall product is clamped. For a certain type of parts, the sizes of the positioning holes of the parts are distributed within a tolerance range, the core rods need to be designed in a grading mode, the machining difficulty of the revolving body core shaft with the multi-curved-surface appearance structure is high, and when grading is involved, the machining difficulty coefficient of the revolving body core shaft is far larger than that of a product.
Therefore, the turning and clamping structure of the thin-wall long pipe fitting with the inner diameter and the outer diameter being changed in a nonlinear mode can be improved, the use convenience of the turning and clamping structure is improved, and the positioning precision of the turning and clamping structure is improved. And simultaneously, the application range of the single structure in machining is expanded.
Disclosure of Invention
The purpose of the invention is as follows: the clamping structure is high in positioning accuracy, convenient and reliable to install and wide in application range.
The technical scheme of the invention is as follows: a turning and clamping structure for a thin-wall long pipe fitting with a non-linear variable inner diameter and outer diameter comprises a locking nut I1, an expansion sleeve 2, a plunger 3, a steel ball 4, a sector plate 5, a belleville spring 6, a screw 7, a wedge rod 8, a locking nut II 9, a shaft 10 and an inner hexagonal set screw 11;
the expansion sleeve 2 is of a cylindrical structure, and a groove is formed in the inner wall of a cylinder of a circular truncated cone hole part of the expansion sleeve 2;
the shaft 10 comprises a cylinder body I with an external thread, a circular truncated cone body with an axial through hole, a cylinder body II and a limiting block structure which are coaxially connected in sequence; the outer diameter of the first cylinder body is smaller than that of the second cylinder body; the taper of the cone is matched with the taper of the cone hole of the expansion sleeve 2, one end of the small bottom surface of the cone is connected with the first cylinder, and one end of the large bottom surface of the cone is connected with the second cylinder; the inner diameter of the first cylinder body and the inner diameter of the second cylinder body are the same as the inner diameter of the axial through hole of the cone;
a radial threaded hole is formed in the cylinder II; a radial through hole I is formed in the outer side of the cylinder II on the shaft 10;
one end, close to the hole part of the circular truncated cone, of the expansion sleeve 2 is sleeved on the outer side of the first cylinder of the shaft 10, the first locking nut 1 is screwed on the external thread of the first cylinder of the shaft 10, and the first locking nut 1 is rotated;
the center of the circular truncated cone structure is provided with an axial through hole, the end face of the circular truncated cone structure is trisected along the circumferential direction of the circular truncated cone structure, one of the trisections is the structure of the sector plate 5, and the side face of the circular truncated cone of the sector plate 5 is provided with a radial through hole II; the distance from the radial through hole II to the larger bottom surface of the circular truncated cone is the same as the distance from the center of the threaded hole on the cylinder II of the shaft 10 to the joint of the cylinder II of the shaft 10 and the limiting block structure;
pushing the end surface of one end of the expansion sleeve 2 close to the cylindrical hole part to move along the axial direction of the expansion sleeve until one end, provided with a groove, of the expansion sleeve 2 contacts the end surface of the smaller bottom surface of the circular truncated cone of the sector plate 5;
the inner circular arc surface of the sector plate 5 is jointed and fixed on the outer side of the two parts of the cylinder body of the shaft 10; installing steel balls 4 in a cylindrical hole of the shaft 10, and then installing a plunger 3 on the steel balls 4, wherein the plunger 3 is contacted with the inner arc surface of the sector plate 5, and the steel balls 4 are contacted with the outer arc surface of the wedge rod 8;
a locking nut 1 at the threaded end of the adjusting shaft 10 drives the expansion sleeve 2 to axially displace until the slotted end of the expansion sleeve 2 contacts the end surface of the sector plate 5.
The wedge rod 8 is of a cylinder structure, the outer side surface of the middle part of the cylinder is formed by alternately connecting a cylindrical surface and a concave curved surface, an external thread is arranged at one end of the wedge rod 8, one end, without the external thread, of the wedge rod 8 penetrates into the central through hole of the shaft 10, one end, with the external thread, of the wedge rod 8 is exposed out of the central through hole, the locking nut II 9 is screwed on the external thread of the wedge rod 8 until the end surface of the locking nut II 9 is attached to the end surface of the limiting block structure;
the wedge 8 moves along the axial direction under the tensioning action of the second locking nut 9, the steel ball 4 is pushed to move along the axial direction in a radial through hole formed in the outer side of the second cylinder on the shaft 10, the steel ball 4 pushes the plunger 3 to move along the axial direction of the radial through hole in the outer side of the second cylinder on the shaft 10 when moving, the sector plate 5 is further pushed to move along the axial direction of the radial through hole in the outer side of the second cylinder on the shaft 10 until the outer arc surface of the sector plate 5 is attached to the inner arc surface of a processed product, and the nut 9 is tightened to a locking position by a knob.
The expansion sleeve 2 is of a cylindrical structure, the inner cavity of the cylindrical structure comprises a cylindrical hole part and a circular truncated cone hole part which are coaxially connected, and the cylindrical hole and the circular truncated cone hole are in circular arc transition.
A groove is formed in the inner wall of a cylinder of the circular truncated cone hole part of the expansion sleeve 2, a cross-shaped groove is formed in the outer cylindrical surface from one end in the axial direction, the groove extends to the joint position of the cylindrical surface of the inner cavity and the circular truncated cone hole, and the bottom of the groove is an arc surface.
The invention has the beneficial effects that: in the clamping structure, a locking nut II 9 is adopted to drive a wedge rod 8 to move along the axial direction, a wedge-shaped structure of a conical surface of the wedge rod 8 is utilized to drive a steel ball 3 and a plunger 4 to move along the axial direction of a hole, and further a sector plate 5 is driven to move outwards along the diameter direction, so that the outer side surface of the sector plate is driven to be in self-adaptive contact with a thin-wall long pipe fitting with the inner diameter and the outer diameter being changed in a nonlinear mode until a processed product is clamped. The structure can adaptively adjust the contact position according to the change of the diameter size of the pipe fitting when fixing the thin-wall long pipe fitting with the inner diameter and the outer diameter which are nonlinearly changed, and realize clamping. Meanwhile, the wedge-shaped mechanism is used for driving, so that stable and controllable adjustment can be realized in a smaller stroke range; the steel ball contact wedge-shaped mechanism is utilized to avoid the situations of blocking caused by common mechanical factors, the self-rotation function of the steel ball can be well suitable for the driving of the wedge-shaped mechanism, the contact between the steel ball and the inner hole is linear contact, and the blocking caused by the single motion mode in the inner hole can be avoided; meanwhile, the driving of the steel balls to the plunger structure is point contact, so that the driving force of the wedge-shaped mechanism can be better transmitted to the plunger, and the sector plate is driven to uniformly move along the radial direction.
The clamping structure improves the processing efficiency of the thin-wall long pipe fitting with the inner diameter and the outer diameter changing in a nonlinear mode, improves the application range of a single clamping structure, shortens the research and development and manufacturing period of products, and saves a large amount of research and development cost. Particularly, due to the realization of the flexible clamping mechanism, a large number of tools are reduced, and the storage work of the tools is simplified.
Drawings
FIG. 1 is a schematic view of a preferred embodiment of a clamping structure according to the present invention;
FIGS. 2 and 3 are schematic structural views of the construction of the shaft 10 of the present invention;
fig. 4 and 5 are schematic structural views of a sector plate 5 of the present invention;
fig. 6 is a schematic structural view of the wedge 8 of the present invention;
the locking device comprises a locking nut I, an expansion sleeve 2, a plunger 3, a steel ball 4, a sector plate 5, a butterfly spring 6, a screw 7, a wedge rod 8, a locking nut II, a shaft 10 and an inner hexagonal set screw 11.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
A turning and clamping structure for a thin-wall long pipe fitting with a non-linear variable inner diameter and outer diameter comprises a locking nut I1, an expansion sleeve 2, a plunger 3, a steel ball 4, a sector plate 5, a belleville spring 6, a screw 7, a wedge rod 8, a locking nut II 9, a shaft 10 and an inner hexagonal set screw 11;
the expansion sleeve 2 is of a cylindrical structure, and a groove is formed in the inner wall of a cylinder of a circular truncated cone hole part of the expansion sleeve 2;
the shaft 10 comprises a cylinder body I with an external thread, a circular truncated cone body with an axial through hole, a cylinder body II and a limiting block structure which are coaxially connected in sequence; the outer diameter of the first cylinder body is smaller than that of the second cylinder body; the taper of the cone is matched with the taper of the cone hole of the expansion sleeve 2, one end of the small bottom surface of the cone is connected with the first cylinder, and one end of the large bottom surface of the cone is connected with the second cylinder; the inner diameter of the first cylinder body and the inner diameter of the second cylinder body are the same as the inner diameter of the axial through hole of the cone;
a radial threaded hole is formed in the cylinder II; a radial through hole I is formed in the outer side of the cylinder II on the shaft 10;
one end, close to the hole part of the circular truncated cone, of the expansion sleeve 2 is sleeved on the outer side of the first cylinder of the shaft 10, the first locking nut 1 is screwed on the external thread of the first cylinder of the shaft 10, and the first locking nut 1 is rotated;
the center of the circular truncated cone structure is provided with an axial through hole, the end face of the circular truncated cone structure is trisected along the circumferential direction of the circular truncated cone structure, one of the trisections is the structure of the sector plate 5, and the side face of the circular truncated cone of the sector plate 5 is provided with a radial through hole II; the distance from the radial through hole II to the larger bottom surface of the circular truncated cone is the same as the distance from the center of the threaded hole on the cylinder II of the shaft 10 to the joint of the cylinder II of the shaft 10 and the limiting block structure;
pushing the end surface of one end of the expansion sleeve 2 close to the cylindrical hole part to move along the axial direction of the expansion sleeve until one end, provided with a groove, of the expansion sleeve 2 contacts the end surface of the smaller bottom surface of the circular truncated cone of the sector plate 5;
the inner circular arc surface of the sector plate 5 is jointed and fixed on the outer side of the two parts of the cylinder body of the shaft 10; installing steel balls 4 in a cylindrical hole of the shaft 10, and then installing a plunger 3 on the steel balls 4, wherein the plunger 3 is contacted with the inner arc surface of the sector plate 5, and the steel balls 4 are contacted with the outer arc surface of the wedge rod 8;
a locking nut 1 at the threaded end of the adjusting shaft 10 drives the expansion sleeve 2 to axially displace until the slotted end of the expansion sleeve 2 contacts the end surface of the sector plate 5.
The wedge rod 8 is of a cylinder structure, the outer side surface of the middle part of the cylinder is formed by alternately connecting a cylindrical surface and a concave curved surface, an external thread is arranged at one end of the wedge rod 8, one end, without the external thread, of the wedge rod 8 penetrates into the central through hole of the shaft 10, one end, with the external thread, of the wedge rod 8 is exposed out of the central through hole, the locking nut II 9 is screwed on the external thread of the wedge rod 8 until the end surface of the locking nut II 9 is attached to the end surface of the limiting block structure;
the wedge 8 moves along the axial direction under the tensioning action of the second locking nut 9, the steel ball 4 is pushed to move along the axial direction in a radial through hole formed in the outer side of the second cylinder on the shaft 10, the steel ball 4 pushes the plunger 3 to move along the axial direction of the radial through hole in the outer side of the second cylinder on the shaft 10 when moving, the sector plate 5 is further pushed to move along the axial direction of the radial through hole in the outer side of the second cylinder on the shaft 10 until the outer arc surface of the sector plate 5 is attached to the inner arc surface of a processed product, and the second locking nut 9 is turned to a locking position.
The expansion sleeve 2 is of a cylindrical structure, the inner cavity of the cylindrical structure comprises a cylindrical hole part and a circular truncated cone hole part which are coaxially connected, and the cylindrical hole and the circular truncated cone hole are in circular arc transition.
A groove is formed in the inner wall of a cylinder of the circular truncated cone hole part of the expansion sleeve 2, a cross-shaped groove is formed in the outer cylindrical surface from one end in the axial direction, the groove extends to the joint position of the cylindrical surface of the inner cavity and the circular truncated cone hole, and the bottom of the groove is an arc surface.
Please refer to fig. 1, which is a schematic structural diagram of a clamping structure according to a preferred embodiment of the present invention. The clamping structure comprises a locking nut I1, an expansion sleeve 2, a steel ball 3, a plunger 4, a sector plate 5, a belleville spring 6, a screw 7, a wedge rod 8, a locking nut II 9, a shaft 10 and an inner hexagonal set screw 11; when the special-shaped thin-wall pipe fitting clamping device is used, the tightness of the second locking nut 9 is adjusted, the wedge rod 8 is driven to move along the axial direction, the wedge-shaped surface on the wedge rod 8 is in contact with the steel ball 3, the steel ball 3 is displaced in the vertical direction relative to the axial movement of the wedge rod 8, further, the axial displacement is carried out in the side wall hole of the shaft 10, the sector plate 5 is driven to move outwards along the diameter direction, and therefore the outer side surface of the sector plate is driven to be in self-adaptive contact with the special-shaped thin-wall pipe.
The plunger 4 is driven to move along the axial direction, the steel ball 4 is pushed to move along the axial direction of the inner hole of the shaft 10 under the tensioning action, the plunger 3 is pushed to move along the axial direction when the steel ball 4 moves, and then the sector plate 5 is pushed to move along the axial direction of the plunger 3 until the outer arc surface of the sector plate 5 is attached to the inner arc surface of the processed product. When the sector plate 5 moves outwards along the axis of the plunger 3, the butterfly spring 6 is compressed, the position locking effect is achieved, and finally the second locking nut 9 is locked.
As shown in fig. 2 and 3, the shaft is a schematic view of the clamping structure. The shaft 10 is a revolving body structure, and a through hole is formed in the center of the revolving body along the axis direction; the inner wall of the cylindrical hole is provided with a cylindrical hole along the diameter direction and is used for installing the steel ball 3 and the plunger 4; a threaded hole structure is arranged on the outer circular surface of the revolving body along the diameter direction and used for installing the screw 7; a thread structure is reserved at the smaller end of the diameter of the revolving body; the side surface of the larger diameter end of the revolving body is reserved with a thread counter bore structure for installing the inner hexagonal set screw 11. In practice, the mechanisms are mounted around the shaft 10.
As shown in fig. 4 and 5, the sector plate 5 is a structure in which a revolving body is trisected from an end surface, the shapes of the sector plate are cylindrical surfaces with different diameters, the cylindrical surfaces are connected to form a conical curved surface, the sector plate is fixed on a shaft 10 by a belleville spring 6 and a screw 7, and the connection position of the sector plate 5 is a counter bore position and a threaded hole position of the shaft 10.
As shown in fig. 6, the wedge 8 is a bamboo-joint-structure revolving body, and is formed by alternately connecting cylindrical cylinders and curved cylinders, wherein one end is a cylindrical cylinder, the other end is a threaded structure, the wedge 8 penetrates through a hollow inner hole of a shaft 10, the threaded end of the wedge 8 is fastened by a second lock nut 9, and the end face of the second lock nut 9 is positioned at the end face of the excircle of the shaft 10.
In one embodiment of the invention, the product is a slender thin-wall revolving body part, the maximum length-diameter ratio reaches 60, the material is martensite precipitation hardening stainless steel which is difficult to process, the appearance is a large conical cylinder structure, the transition structure is a nonlinear arc, the size of the inner diameter of the hole is nonlinearly changed, the diameter of the straight hole and the conical hole are alternately changed, the wall thickness is changed in 8 places, the wall thickness is changed nonlinearly, integral processing is required during processing, and deformation of the inner circle and the outer circle is avoided. The clamping structure adopts a locking nut II 9 to drive a wedge rod 8 to move along the axial direction, and a wedge-shaped structure of the conical surface of the wedge rod 8 is utilized to drive the steel ball 3 and the plunger 4 to move along the axial direction of the hole, so that the sector plate 5 is driven to move outwards along the diameter direction, and the outer side surface of the sector plate is driven to be in self-adaptive contact with a processed thin-wall long pipe fitting with the inner and outer diameters changing nonlinearly until a processed product is clamped. The structure can adaptively adjust the contact position according to the change of the diameter size of the pipe fitting when fixing the thin-wall long pipe fitting with the inner diameter and the outer diameter which are nonlinearly changed, and realize clamping. Meanwhile, the wedge-shaped mechanism is used for driving, so that stable and controllable adjustment can be realized in a smaller stroke range; the steel ball contact wedge mechanism is utilized to avoid the situations of blocking caused by common mechanical factors, the self-rotation function of the steel ball is well suitable for the driving of the wedge mechanism, the contact between the steel ball and the inner hole is linear contact, and the blocking caused by the single motion mode in the inner hole can be avoided; meanwhile, the driving of the steel balls to the plunger structure is point contact, so that the driving force of the wedge-shaped mechanism can be better transmitted to the plunger, and the sector plate is driven to uniformly move along the radial direction.
The structure is convenient to install, and overcomes the defects of installation complexity, large additional weight and the like caused by the traditional clamping mode. The processing reliability and the size universality solve the problems of replacement, maintenance and the like of the clamp caused by a single clamping structure. The clamping structure improves the processing efficiency of the thin-wall long pipe fitting with the inner and outer diameters changing in a nonlinear mode, and expands the application range of a single clamping structure.
Claims (1)
1. A turning and clamping structure for a thin-wall long pipe fitting with a non-linear variable inner diameter and outer diameter is characterized by comprising a locking nut I (1), an expansion sleeve (2), a plunger (3), a steel ball (4), a sector plate (5), a belleville spring (6), a screw (7), a wedge rod (8), a locking nut II (9), a main shaft (10) and an inner hexagonal set screw (11);
the expansion sleeve (2) is of a cylindrical structure, and a groove is formed in the inner wall of a cylinder of a circular truncated cone hole part of the expansion sleeve (2);
the shaft (10) comprises a cylinder body I with an external thread, a circular truncated cone body with an axial through hole, a cylinder body II and a limiting block structure which are coaxially connected in sequence; the outer diameter of the first cylinder body is smaller than that of the second cylinder body; the taper of the cone is matched with the taper of the cone hole of the expansion sleeve (2), one end of the small bottom surface of the cone is connected with the first cylinder, and one end of the large bottom surface of the cone is connected with the second cylinder; the inner diameter of the first cylinder body and the inner diameter of the second cylinder body are the same as the inner diameter of the axial through hole of the cone;
a radial threaded hole is formed in the cylinder II; a radial through hole I is formed in the outer side of the cylinder II on the shaft (10);
one end, close to the circular truncated cone hole part, of the expansion sleeve (2) is sleeved on the outer side of the first cylinder body of the shaft (10), the first locking nut (1) is screwed on the external thread of the first cylinder body of the shaft (10), and the first locking nut (1) is rotated;
the center of the circular truncated cone structure is provided with an axial through hole, the end face of the circular truncated cone structure is trisected along the circumferential direction of the circular truncated cone structure, one of the trisections is the structure of the sector plate (5), and the side face of the circular truncated cone of the sector plate (5) is provided with a radial through hole II; the distance from the radial through hole II to the larger bottom surface of the circular truncated cone is the same as the distance from the center of a threaded hole in the shaft (10) cylinder II to the joint of the shaft (10) cylinder II and the limiting block structure;
pushing the end surface of one end of the expansion sleeve (2) close to the cylindrical hole part to move along the axial direction of the expansion sleeve until one end with a groove of the expansion sleeve (2) contacts the end surface of the smaller bottom surface of the circular truncated cone of the sector plate (5);
the inner circular arc surface of the sector plate (5) is attached and fixed on the outer side of the second part of the cylinder body of the shaft (10); installing steel balls (4) in cylindrical holes of a shaft (10), and then installing a plunger (3) on the steel balls (4), wherein the plunger (3) is in contact with the inner arc surface of a sector plate (5), and the steel balls (4) are in contact with the outer arc surface of a wedge rod (8);
a locking nut I (1) at the threaded end of the adjusting shaft (10) drives the expansion sleeve (2) to axially displace until the slotted end of the expansion sleeve (2) contacts the end surface of the sector plate (5);
the wedge rod (8) is of a cylinder structure, the outer side surface of the middle part of the cylinder is formed by alternately connecting a cylindrical surface and a concave curved surface, one end of the wedge rod (8) is provided with an external thread, the end of the wedge rod (8) without the external thread penetrates into a central through hole of the shaft (10), the end of the wedge rod (8) with the external thread is exposed out of the central through hole, and the locking nut II (9) is screwed on the external thread of the wedge rod (8) until the end surface of the locking nut II (9) is attached to the end surface of the limiting block structure;
the wedge rod (8) moves along the axial direction under the tensioning action of a second locking nut (9), the steel ball (4) is pushed to move in a radial through hole formed in the outer side of the second cylinder on the shaft (10) along the axial direction, the plunger (3) is pushed to move along the axial direction of the radial through hole in the outer side of the second cylinder on the shaft (10) when the steel ball (4) moves, the sector plate (5) is further pushed to move along the axial direction of the radial through hole in the outer side of the second cylinder on the shaft (10) until the outer arc surface of the sector plate (5) clings to the inner arc surface of a processed product, the second knob locking nut (9) reaches a locking position, the expansion sleeve (2) is of a cylindrical structure, the inner cavity of the cylindrical structure comprises a cylindrical hole part and a coaxially connected circular platform hole part, and the cylindrical hole is; a groove is formed in the inner wall of a cylinder of the circular truncated cone hole part of the expansion sleeve (2), a cross-shaped groove is formed in the outer cylindrical surface from one end along the axis direction, the groove extends to the joint position of the cylindrical surface of the inner cavity and the circular truncated cone hole, and the bottom of the groove is an arc surface; the butterfly spring (6) is arranged in a counter bore of the outer curved surface of the sector plate (5) and is pressed tightly by a screw (7), and the thread part of the screw is screwed into a threaded hole of the main shaft (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811463922.0A CN109648363B (en) | 2018-11-30 | 2018-11-30 | Turning clamping structure for thin-wall long pipe fitting with non-linear variable inner and outer diameters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811463922.0A CN109648363B (en) | 2018-11-30 | 2018-11-30 | Turning clamping structure for thin-wall long pipe fitting with non-linear variable inner and outer diameters |
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| Publication Number | Publication Date |
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| CN109648363A CN109648363A (en) | 2019-04-19 |
| CN109648363B true CN109648363B (en) | 2020-12-25 |
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| CN111604837B (en) * | 2020-06-03 | 2022-02-01 | 李让勤 | Clamping tool for fitter machining |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203875632U (en) * | 2014-05-23 | 2014-10-15 | 淮南市龙湖公园 | Special fixture for machining outer circle and end surface of thin-walled round tube |
| CN105728770A (en) * | 2016-03-30 | 2016-07-06 | 句容五星机械制造有限公司 | Clamp tool used for turning thin-wall cylindrical workpiece |
| CN205834846U (en) * | 2016-07-08 | 2016-12-28 | 西安西航集团莱特航空制造技术有限公司 | A kind of for precise thin-wall tubular member clamp for machining |
| CN107498076A (en) * | 2017-09-21 | 2017-12-22 | 中国电子科技集团公司第四十八研究所 | A kind of clamping device for Vehicle Processing thin-wall pipe |
| CN108356559A (en) * | 2018-04-04 | 2018-08-03 | 洛阳鹏起实业有限公司 | A kind of thin-wall pipe clamping tooling |
| CN108581567A (en) * | 2018-05-30 | 2018-09-28 | 姚冬冬 | A kind of thin-wall sleeve parts clamping tooling |
-
2018
- 2018-11-30 CN CN201811463922.0A patent/CN109648363B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203875632U (en) * | 2014-05-23 | 2014-10-15 | 淮南市龙湖公园 | Special fixture for machining outer circle and end surface of thin-walled round tube |
| CN105728770A (en) * | 2016-03-30 | 2016-07-06 | 句容五星机械制造有限公司 | Clamp tool used for turning thin-wall cylindrical workpiece |
| CN205834846U (en) * | 2016-07-08 | 2016-12-28 | 西安西航集团莱特航空制造技术有限公司 | A kind of for precise thin-wall tubular member clamp for machining |
| CN107498076A (en) * | 2017-09-21 | 2017-12-22 | 中国电子科技集团公司第四十八研究所 | A kind of clamping device for Vehicle Processing thin-wall pipe |
| CN108356559A (en) * | 2018-04-04 | 2018-08-03 | 洛阳鹏起实业有限公司 | A kind of thin-wall pipe clamping tooling |
| CN108581567A (en) * | 2018-05-30 | 2018-09-28 | 姚冬冬 | A kind of thin-wall sleeve parts clamping tooling |
Non-Patent Citations (3)
| Title |
|---|
| 卧式车床上加工薄壁长铝管件内孔的夹具设计;陈水明;《新技术新工艺》;20110425(第04期);全文 * |
| 薄壁管件内胀式车削工装设计;周润锋;《科技视界》;20160125(第03期);全文 * |
| 车加工薄壁管内孔的专用夹具;阎青松;《机械制造》;20020625(第06期);全文 * |
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