CN114393222A - Semi-arc surface part machining device and machining method thereof - Google Patents
Semi-arc surface part machining device and machining method thereof Download PDFInfo
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- CN114393222A CN114393222A CN202210308317.6A CN202210308317A CN114393222A CN 114393222 A CN114393222 A CN 114393222A CN 202210308317 A CN202210308317 A CN 202210308317A CN 114393222 A CN114393222 A CN 114393222A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
- B23B5/36—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning specially-shaped surfaces by making use of relative movement of the tool and work produced by geometrical mechanisms, i.e. forming-lathes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B1/00—Methods for turning or working essentially requiring the use of turning-machines; Use of auxiliary equipment in connection with such methods
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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
Abstract
The invention discloses a semi-arc surface part processing device and a processing method thereof.A semi-arc surface part is directly arranged on a clamping surface on a clamp body through a positioning piece, so that the semi-arc surface part and the clamp body form an integral revolving body, and the clamp body is driven to rotate through a lathe so as to realize turning processing of the arc surface profile of the semi-arc surface part; the semi-arc surface part is installed on the clamping surface of the clamp body through the spliced outer arc obtained through fitting so as to reduce installation errors, and the semi-arc surface part is machined in a turning mode, so that the machining efficiency of the semi-arc surface part is improved, and meanwhile, the surface machining quality of the semi-arc surface part is further guaranteed.
Description
Technical Field
The invention belongs to the technical field of cambered surface contour machining of semi-cambered surface parts, and particularly relates to a semi-cambered surface part machining device and a semi-cambered surface part machining method.
Background
With the rapid development of the field of aviation manufacturing, the number of airplane models is gradually increased, and the diversity of requirements finally leads to the diversity of product parts. Parts with different structures and sizes need different clamping schemes, the processing efficiency and the quality control of the parts are important links for new project development, and particularly the control of the development cost of various machine types is particularly important for enterprises. For the processing of a semi-arc part, the traditional milling processing method has the following problems:
(1) when a part is milled, a lot of blank materials of the part are wasted, and meanwhile, the height of a residual ridge exists in the process of machining the arc surface of the part, so that the surface quality is difficult to ensure, and the weight tolerance of the part is difficult to ensure;
(2) when the part is milled, the milling efficiency of the cambered surface profile of the semi-cambered surface part is low, the production period of the part is long, and the processing cost is high.
The invention provides a semi-arc surface part machining device and a machining method thereof, aiming at the defects of part blank waste, low machining efficiency and insufficient surface machining quality in the traditional semi-arc surface part milling machining.
Disclosure of Invention
The invention aims to provide a semi-arc surface part machining device, wherein a semi-arc surface part is directly arranged on a clamping surface on a clamp body through a positioning piece, so that the semi-arc surface part and the clamp body form an integral revolving body, and the clamp body is driven to rotate through a lathe so as to realize turning machining of an arc surface outline of the semi-arc surface part; the invention also discloses a semi-arc surface part processing method, the semi-arc surface part is installed on the clamping surface on the clamp body through the fitted spliced outer arc to reduce installation errors, and the semi-arc surface part is processed in a turning mode, so that the processing efficiency of the semi-arc surface part is improved, and the surface processing quality of the semi-arc surface part is further ensured.
The invention is realized by the following technical scheme:
a semi-arc surface part machining device comprises a clamp body for fixing an arc surface part, wherein at least one clamping surface is arranged on the outer side of the clamp body along the circumferential direction, a plurality of positioning threaded holes are uniformly distributed in the clamping surface, and positioning pieces are arranged in the positioning threaded holes in a threaded mode; the clamp is characterized in that limiting bosses are arranged at two ends of the clamping face, and central holes are coaxially arranged at two ends of the clamp body.
The semi-arc surface part is arranged on the clamping surface, and is clamped and locked through the fixed file, so that the semi-arc surface part and the clamp body form an integral structure. Then, center holes at two ends of the clamp body are tightly pushed through a thimble of the lathe, and then the clamp body and the semi-cambered surface part on the clamp body are driven to rotate through a lathe spindle, so that the cambered surface profile of the semi-cambered surface part is turned. And then replaced the tradition and adopted the mode of milling to mill the cambered surface profile of semi-arc surface part, effectively avoided parts machining extravagant. The processing efficiency of the cambered surface profile of the semi-cambered surface part is improved through the turning mode, meanwhile, the residual ridge height caused by traditional milling is avoided, and the processing effect of the cambered surface profile of the semi-cambered surface part is further guaranteed.
In order to better realize the invention, the outer side of the clamp body is uniformly provided with two clamping surfaces along the circumferential direction, and the two clamping surfaces are arranged in parallel.
In order to better realize the invention, the positioning part comprises a positioning bolt, the positioning bolt comprises a thread section which is in threaded connection with the positioning thread hole on the clamping surface correspondingly, a cylindrical section which is matched with the positioning hole of the cambered surface part, and an inner hexagonal section which is arranged at one end of the cylindrical section and is used for compressing the cambered surface part.
In order to better realize the invention, the positioning piece further comprises a pressing block used for pressing flanges at two ends of the cambered surface part, and step positioning holes are formed in the pressing block corresponding to the positioning bolts.
In order to better realize the invention, the positioning piece further comprises a positioning boss, the bottom end face of the positioning boss is spliced with the clamping face, and a stepped positioning hole is formed in the bottom end face of the positioning boss corresponding to the positioning threaded hole in the clamping face; the top of the positioning boss is provided with at least one bulge for tightly pushing the inner side surface of the cambered surface part.
In order to better realize the invention, the positioning piece further comprises a positioning hoop, positioning grooves are arranged on the inner side surface of the positioning hoop and correspond to the two sides of the clamping surface, and positioning convex edges in sliding connection with the positioning grooves are arranged on the two sides of the clamping surface.
A semi-arc surface part machining method is realized based on the semi-arc surface part machining device and comprises the following steps:
and 3, tightly pushing the center holes at the two ends of the clamp body through a machine tool thimble, and then driving the clamp body to rotate by adopting the machine tool so as to turn the cambered surface profile of the cambered surface part installed on the clamp body.
In order to better implement the present invention, further, in step 2, if there is no positioning hole on the arc-shaped part, flanges are provided at two ends of the arc-shaped part, and then the flanges are pressed towards the clamping surface by using a pressing block.
In order to better implement the invention, further, in the step 2, if the length of the arc-shaped part is greater than or equal to mm, the installation position of the positioning hoop along the axial direction of the clamp body is adjusted by sliding, and then the positioning hoop is adopted to clamp the arc-shaped profile of the arc-shaped part.
In order to better implement the invention, further, in the step 2, if the arc-shaped part is a thin-shell part, a positioning boss is assembled on the clamping surface in advance, and then the inner side surface of the arc-shaped part is tightly pushed by the protrusion of the positioning boss.
Compared with the prior art, the invention has the following advantages and beneficial effects:
according to the invention, the clamp body is arranged, the at least one clamping surface is arranged on the outer side of the clamp body along the circumferential direction, the semi-arc surface part is directly assembled and installed on the clamping surface, then the semi-arc surface part is locked through the positioning part, so that after the arc surface profile of the semi-arc surface part is superposed with the assembled outer arc, the center holes at two ends of the clamp body are tightly propped through the ejector pin on the lathe, the clamp body and the semi-arc surface part on the clamp body are driven to rotate, the turning processing of the arc surface profile of the semi-arc surface part is further realized, the traditional milling processing is replaced, the residual ridge caused by the milling processing can be avoided while the processing efficiency of the semi-arc surface part is improved, and the processing quality of the arc surface profile of the semi-arc surface part is further ensured.
Drawings
FIG. 1 is a schematic structural diagram of a half-arc surface part machining device;
FIG. 2 is a schematic view of the clamping of a half-cambered surface part;
FIG. 3 is a schematic view of the installation of the compact;
FIG. 4 is a schematic view of the installation of the positioning hoop;
FIG. 5 is a schematic view of the installation of the positioning boss;
FIG. 6 is a schematic view of the positioning boss for clamping and positioning the semi-cambered surface part.
Wherein: 1-a clamp body; 2-limiting boss; 3-a central hole; 4-clamping surface; 5-a positioning member; 51-a positioning bolt; 52-a compact; 53-positioning the boss; 54-positioning anchor ear.
Detailed Description
Example 1:
the semi-arc surface part machining device comprises a clamp body 1 for fixing a semi-arc surface part, wherein at least one clamping surface 4 is arranged on the outer side of the clamp body 1 along the circumferential direction, a plurality of positioning threaded holes are uniformly distributed in the clamping surface 4, and positioning pieces 5 are arranged in the positioning threaded holes in a matched mode, as shown in fig. 1; the clamp is characterized in that limiting bosses 2 are arranged at two ends of the clamping face 4, and central holes 3 are coaxially arranged at two ends of the clamp body 1.
The clamping surface 4 is arranged corresponding to the positioning surface at the bottom of the semi-arc surface part and is used for being spliced with the positioning surface at the bottom of the semi-arc surface part. The semi-arc surface part is provided with a plurality of positioning holes in advance, and two ends of the semi-arc surface part are provided with flanges for positioning. The installation position of the semi-arc surface part in the axial direction of the clamp body 1 is limited by the limiting bosses 2 at the two ends of the clamping surface 4. The semi-cambered surface part is provided with a step positioning hole in advance, and the clamping surface 4 is provided with a plurality of positioning threaded holes corresponding to the step positioning hole on the semi-cambered surface part. After the semi-arc surface parts are assembled on the clamping surface 4, the positioning piece 5 is assembled in the aligned stepped positioning hole and the positioning threaded hole, and then the positions of the semi-arc surface parts are locked through the positioning piece 5.
After the semi-arc surface part is positioned and clamped, the center holes 3 at the two ends of the clamp body 1 can be tightly pushed through the ejector pins of the machine tool, the machine tool is used for driving the clamp body 1 and the semi-arc surface part to rotate by taking the axis of the clamp body 1 as a rotating shaft, and turning is carried out on the arc surface contour of the semi-arc surface part through a turning tool on the machine tool.
Further, the outside of anchor clamps body 1 evenly is provided with two clamping face 4 along circumference, and two clamping face 4 parallel arrangement through evenly setting up two clamping face 4 that are parallel to each other along circumference in the outside of anchor clamps body 1, and then can install two semi-cambered surface parts in the outside of anchor clamps body 1, guarantees the pivoted stationarity of anchor clamps body 1 and semi-cambered surface part in follow-up lathe work simultaneously.
Further, the central hole 3 is a B-shaped central hole.
Example 2:
the embodiment is further optimized on the basis of the embodiment 1, as shown in fig. 2, the positioning member 5 includes a positioning bolt 51, the positioning bolt 51 includes a threaded section corresponding to the threaded connection with the positioning threaded hole on the clamping surface 4, a cylindrical section matched with the positioning hole of the semi-arc surface part, and an inner hexagonal section arranged at one end of the cylindrical section and used for compressing the semi-arc surface part.
The screw thread section extends to in the locating screw hole on the clamping face 4 and with locating screw hole threaded connection, the cylinder section of the coaxial setting of screw thread section one end cooperates with the ladder locating hole on the semi-arc face part simultaneously, and then realize the location to the semi-arc face part, simultaneously through screwing up positioning bolt 51, make interior hexagonal section be absorbed in inside the ladder locating hole and compress tightly semi-arc face part towards clamping face 4, and then realize that the clamping of semi-arc face part is fixed, guarantee simultaneously that positioning bolt 51 can not influence subsequent lathe work.
Preferably, the diameter of the large hole of the stepped positioning hole is D1, and the diameter of the small hole is D3; the diameter of the cylindrical section is D2, the diameter of the inner hexagonal section is D4, and D1 is more than D2, t/3 is more than D3-D4 is more than t/5, wherein t is the manufacturing tolerance of the cylindrical section.
Other parts of this embodiment are the same as embodiment 1, and thus are not described again.
Example 3:
the present embodiment is further optimized on the basis of the foregoing embodiment 1 or 2, as shown in fig. 3, the positioning element 5 further includes a pressing block 52 for pressing flanges at two ends of the half arc surface part, and a stepped positioning hole is formed in the pressing block 52 corresponding to the positioning bolt 51.
When the number of the stepped positioning holes which are inconvenient to arrange on the half arc surface part is small, in order to further fix the half arc surface part, flanges are symmetrically arranged at the left end and the right end of the half arc surface part, and pressing blocks 52 are arranged corresponding to the flanges. The flange is pressed towards the clamping surface 4 through the pressing block 52, and then the positioning bolt 51 is installed in the stepped positioning hole in the pressing block 52 and the positioning threaded hole in the clamping surface 4, so that the semi-cambered surface part is further clamped and positioned.
Further, a pressing groove is formed on the pressing surface of the pressing block 52 corresponding to the flange.
The rest of this embodiment is the same as embodiment 1 or 2, and therefore, the description thereof is omitted.
Example 4:
in this embodiment, further optimization is performed on the basis of any one of the embodiments 1 to 3, as shown in fig. 5 and 6, the positioning member 5 further includes a positioning boss 53, a bottom end surface of the positioning boss 53 is spliced with the clamping surface 4, and a stepped positioning hole is formed in the bottom end surface of the positioning boss 53 corresponding to the positioning threaded hole in the clamping surface 4; the top of the positioning boss 53 is provided with at least one protrusion for tightly pushing the inner side surface of the semi-cambered surface part.
When the semi-arc surface part is in a thin shell shape, the splicing area between the semi-arc surface part and the clamping surface 4 is very small, and the semi-arc surface part is very easy to deform due to the fact that the thin shell-shaped semi-arc surface part is lack of rigid support between the clamping surface 4 and the thin shell-shaped semi-arc surface part, when the semi-arc surface part is pressed tightly through the positioning bolt 51. At this time, the positioning boss 53 can be mounted on the clamping surface 4 in advance.
The bottom of location boss 53 is direct to be amalgamated with clamping face 4, and the top of location boss 53 is provided with at least one arch tight with the medial surface top of semi-arc face part, and the arch carries out the rigidity support to the medial surface of semi-arc face part simultaneously, effectively avoids semi-arc face part compressive deformation. Then, the positioning bolt 51 can be installed in the stepped positioning hole on the positioning boss 53 and the positioning threaded hole on the clamping surface 4, so that the thin-shell-shaped semi-arc surface part can be stably clamped.
Other parts of this embodiment are the same as any of embodiments 1 to 3, and thus are not described again.
Example 5:
this embodiment is further optimized on the basis of any one of the embodiments 1 to 4, as shown in fig. 4, the positioning member 5 further includes a positioning hoop 54, positioning grooves are disposed on the inner side surface of the positioning hoop 54 corresponding to the two sides of the clamping surface 4, and positioning ribs slidably connected with the positioning grooves are disposed on the two sides of the clamping surface 4.
For the semi-arc surface part with the length being more than or equal to 200mm, in order to further ensure the clamping stability of the semi-arc surface part, the positioning bolt 51 is adopted to fix the semi-arc surface part in a strand manner, the positioning hoop 54 is also required to be installed on the outer side of the semi-arc surface part, and the middle position of the semi-arc surface part is clamped and fixed through the positioning hoop 54. Meanwhile, the positioning grooves on the inner side surface of the positioning hoop 54 are in sliding fit with the positioning convex ribs on the side surface of the clamping surface 4, so that the axial mounting position of the positioning hoop 54 along the clamping surface 4 is adjusted to adapt to clamping of semi-arc-surface parts with different lengths. During the turning process, attention should be paid to avoid the clamping area of the positioning hoop 54, after the rest of the processes are completed, the positioning hoop 54 is slid to expose the unprocessed area of the semi-cambered surface part, and then the unprocessed area is turned.
Other parts of this embodiment are the same as any of embodiments 1 to 4, and thus are not described again.
Example 6:
a semi-arc surface part machining method is realized based on a semi-arc surface part machining device and comprises the following steps:
And 3, tightly jacking center holes 3 at two ends of the clamp body 1 through a machine tool thimble, then driving the clamp body 1 to rotate by adopting the machine tool, and further turning the cambered surface profile of the semi-cambered surface part installed on the clamp body 1.
The other parts of this embodiment are the same as those of embodiments 1 to 4, and therefore, the description thereof is omitted.
Example 7:
in step 2, if there is no positioning hole on the arc-shaped part, flanges are provided at two ends of the arc-shaped part, and then the flanges are pressed toward the clamping surface 4 by using the pressing block 52.
After the flange is pressed towards the clamping surface 4 by the pressing block 52, the turning processing can be carried out on the cambered surface profile of the semi-cambered surface part, and after the cambered surface profile processing is finished, the flanges at the two ends of the clamp body 1 are cut off by a three-axis numerical control milling machine.
The rest of this embodiment is the same as embodiment 6, and thus, the description thereof is omitted.
Example 8:
in step 2, if the length of the arc-shaped part is greater than or equal to 200mm, the installation position of the positioning hoop 54 along the axial direction of the fixture body 1 is adjusted by sliding, and then the positioning hoop 54 is used to clamp the arc-shaped profile of the arc-shaped part.
Furthermore, aiming at the semi-arc surface parts which are inconvenient to be provided with the step positioning holes and have the length of more than or equal to 200mm, the semi-arc surface parts can be clamped in a mode that the pressing block 52 is matched with the positioning hoop 54.
The rest of this embodiment is the same as embodiment 6 or 7, and therefore, the description thereof is omitted.
Example 9:
in this embodiment, a further optimization is performed on the basis of any one of the embodiments 6 to 8, in the step 2, if the arc-shaped part is a thin-shell-type part, the positioning boss 53 is assembled on the clamping surface 4 in advance, and then the inner side surface of the arc-shaped part is tightly pressed by the protrusion of the positioning boss 53.
The top of the positioning boss 53 is provided with a protrusion, so that the whole positioning boss 53 is of a triangular structure, and the triangular positioning boss 53 is suitable for arc surface parts with arc surface central angle span of less than or equal to 30 degrees.
As shown in fig. 6, at least two protrusions are disposed on the top of the positioning boss 53, so that the entire positioning boss 53 is in a polygonal structure, and the polygonal positioning boss 53 is suitable for arc-surface parts with arc-surface central angle span greater than 30 °.
Other parts of this embodiment are the same as any of embodiments 6 to 8 described above, and therefore, description thereof is omitted.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.
Claims (10)
1. A semi-arc surface part machining device comprises a clamp body (1) for fixing a semi-arc surface part, and is characterized in that at least one clamping surface (4) is arranged on the outer side of the clamp body (1) along the circumferential direction, a plurality of positioning threaded holes are uniformly distributed in the clamping surface (4), and positioning pieces (5) are arranged in the positioning threaded holes in a threaded manner; the clamp is characterized in that limiting bosses (2) are arranged at two ends of the clamping face (4), and central holes (3) are coaxially arranged at two ends of the clamp body (1).
2. The semi-arc surface part machining device according to claim 1, characterized in that two clamping surfaces (4) are uniformly arranged on the outer side of the clamp body (1) along the circumferential direction, and the two clamping surfaces (4) are arranged in parallel.
3. The semi-arc surface part machining device according to claim 1 or 2, wherein the positioning piece (5) comprises a positioning bolt (51), the positioning bolt (51) comprises a threaded section which is in threaded connection with a positioning threaded hole in the clamping surface (4) correspondingly, a cylindrical section which is matched with the positioning hole of the semi-arc surface part, and an inner hexagonal section which is arranged at one end of the cylindrical section and used for pressing the semi-arc surface part.
4. The semi-cambered surface part machining device according to claim 3 is characterized in that the positioning piece (5) further comprises a pressing block (52) used for pressing flanges at two ends of the semi-cambered surface part, and stepped positioning holes are formed in the pressing block (52) corresponding to the positioning bolts (51).
5. The semi-arc surface part machining device according to claim 4, wherein the positioning piece (5) further comprises a positioning boss (53), the bottom end face of the positioning boss (53) is spliced with the clamping surface (4), and a stepped positioning hole is formed in the bottom end face of the positioning boss (53) and corresponds to a positioning threaded hole in the clamping surface (4); the top of the positioning boss (53) is provided with at least one bulge for tightly propping the inner side surface of the semi-cambered surface part.
6. The semi-arc surface part machining device according to claim 5, wherein the positioning piece (5) further comprises a positioning hoop (54), positioning grooves are formed in the inner side surface of the positioning hoop (54) and correspond to two sides of the clamping surface (4), and positioning convex ribs in sliding connection with the positioning grooves are formed in two sides of the clamping surface (4).
7. A half-cambered part machining method is realized based on the half-cambered part machining device according to any one of claims 1-6, and is characterized by comprising the following steps of:
step 1, performing outer circular arc fitting by taking the axis of the clamp body (1) as a rotating shaft and the cambered surface profile of the semi-cambered surface part as a fitting profile;
step 2, splicing the semi-arc surface part on a clamping surface (4) according to the spliced outer arc obtained by fitting, adjusting the splicing position of the semi-arc surface part to enable the contact ratio between the arc surface contour of the semi-arc surface part and the spliced outer arc to reach the standard, and then fixing the semi-arc surface part by adopting a positioning piece (5);
and 3, tightly jacking center holes (3) at two ends of the clamp body (1) through a machine tool thimble, then driving the clamp body (1) to rotate by adopting the machine tool, and further turning the cambered surface profile of the semi-cambered surface part installed on the clamp body (1).
8. The method for machining the semi-arc-surface part according to claim 7, wherein in the step 2, if the semi-arc-surface part is not provided with the positioning holes, flanges are arranged at two ends of the semi-arc-surface part, and then the flanges are pressed towards the clamping surface (4) by using a pressing block (52).
9. The method for processing the semi-arc-surface part according to claim 7, wherein in the step 2, if the length of the semi-arc-surface part is greater than or equal to 100mm, the installation position of the positioning hoop (54) along the axial direction of the clamp body (1) is adjusted by sliding, and then the positioning hoop (54) is adopted to clamp the arc-surface profile of the semi-arc-surface part.
10. The method for processing the semi-arc-surface part according to claim 7, wherein in the step 2, if the semi-arc-surface part is a thin-shell type part, the positioning boss (53) is assembled on the clamping surface (4) in advance, and then the inner side surface of the semi-arc-surface part is tightly pressed through the protrusion of the positioning boss (53).
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| CN102366901A (en) * | 2011-11-02 | 2012-03-07 | 山东常林机械集团股份有限公司 | Semi-circular arc turning tool for swash plate bracket |
| CN102962687A (en) * | 2012-10-26 | 2013-03-13 | 西安航空动力控制科技有限公司 | Fixture for processing excircle and processing method for semicircular pump tilting tray |
| CN202922232U (en) * | 2012-10-30 | 2013-05-08 | 攀钢集团工程技术有限公司 | Combination fixture used for machining semicircular bearing bushes and lathe adopting combination fixture |
| CN103753141A (en) * | 2014-01-03 | 2014-04-30 | 常熟市精工模具制造有限公司 | Method and special fixture for glass mould cylindrical machining |
| CN104723151A (en) * | 2015-03-31 | 2015-06-24 | 洛阳理工学院 | Device for turning and grinding outer cylindrical surfaces |
| CN104875033A (en) * | 2015-05-08 | 2015-09-02 | 武汉船用机械有限责任公司 | Semicircular thin-wall workpiece processing tool and use method thereof |
| CN204800335U (en) * | 2015-06-02 | 2015-11-25 | 北华航天工业学院 | Valve head seat part numerical control milling process frock |
| CN105855567A (en) * | 2016-06-20 | 2016-08-17 | 辽宁科技大学 | Method for processing asymmetric double eccentric arc surface of contact backstop wedge block |
| CN205852358U (en) * | 2016-08-01 | 2017-01-04 | 咸阳盛翼机械制造有限公司 | A kind of mounting tool of multiple large radius arc faces class part vehicle processing simultaneously |
| CN107414426A (en) * | 2017-08-16 | 2017-12-01 | 中冶陕压重工设备有限公司 | A kind of processing method of semicircle insert |
| CN108274283A (en) * | 2018-01-26 | 2018-07-13 | 宝鸡石油机械有限责任公司 | A kind of processing method that arc board group closes size |
| CN108942344A (en) * | 2018-07-18 | 2018-12-07 | 长沙金信诺防务技术有限公司 | A kind of cylindrical part method for turning and tooling |
| CN209774104U (en) * | 2019-03-29 | 2019-12-13 | 洛阳晶奥电子材料有限公司 | Clamping device for turning three-petal graphite crucible |
| CN210306754U (en) * | 2019-06-20 | 2020-04-14 | 盐城市鑫海机械有限公司 | Turning tool |
| CN213969061U (en) * | 2020-11-26 | 2021-08-17 | 湖北双航机电装备科技有限公司 | Tooling for machining outer circular surface of thin part of ultra-long barrel |
| CN214519014U (en) * | 2020-12-01 | 2021-10-29 | 西安航空学院 | Lathe test piece positioning fixture |
| CN215966319U (en) * | 2020-12-29 | 2022-03-08 | 国营第八〇三厂 | Device for processing arc surface of product |
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