CN110125219B - Processing device for thin-wall special-shaped piece - Google Patents
Processing device for thin-wall special-shaped piece Download PDFInfo
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- CN110125219B CN110125219B CN201910246778.3A CN201910246778A CN110125219B CN 110125219 B CN110125219 B CN 110125219B CN 201910246778 A CN201910246778 A CN 201910246778A CN 110125219 B CN110125219 B CN 110125219B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
- B21D22/025—Stamping using rigid devices or tools for tubular articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
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- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
Abstract
The invention discloses a processing device for a thin-wall special-shaped piece, and belongs to the field of machining. The positioning unit in the first stamping tool is used for positioning the ring blank on the support ring, the first curved surface on the compression ring is gradually reduced in the direction towards the support ring, and the first curved surface on the compression ring compresses the ring blank on the second curved surface of the support ring to obtain the ring blank with the inner edge area being stamped. The inner edge region of the ring blank is secured between the retaining ring and the base. The fifth curved surface arranged on the stamping ring can compress the part, which is not stamped, of the circular ring blank on the base, and the third curved surface on the positioning ring is combined to complete the integral stamping of the circular ring blank. The inner edge area and the outer edge area of the circular ring blank are not punched at one time, the stress of the circular ring blank is uniform, and the quality of the obtained thin-wall special-shaped piece is good.
Description
Technical Field
The invention relates to the field of machining, in particular to a machining device for a thin-wall special-shaped piece.
Background
There currently exists a thin-walled profile which is the main component of the gas turbine head inlet duct. The quality of the molded line of the thin-wall special-shaped piece needs to be ensured to be good because the airflow flowing in the air inlet channel at the head part of the gas turbine needs to be kept stable. However, the precision of the thin-wall special-shaped piece obtained by the manufacturing method is not high, the problem of uneven wall thickness of a part is easy to occur, and the quality of the molded line of the obtained thin-wall special-shaped piece is poor.
Disclosure of Invention
The embodiment of the invention provides a processing device of a thin-wall special-shaped piece, which can improve the quality of the thin-wall special-shaped piece. The technical scheme is as follows:
the embodiment of the invention provides a processing device of a thin-wall special-shaped piece, which comprises a first stamping tool and a second stamping tool, wherein the first stamping tool is used for stamping an inner edge area of a circular ring blank to obtain a stamped inner edge area, the second stamping tool is used for stamping the stamped inner edge area and an outer edge area of the circular ring blank,
the first stamping tool comprises a pressing ring, a positioning unit and a support ring, the pressing ring is superposed with the axis of the support ring, the pressing ring and the support ring are arranged at intervals, a first curved surface is arranged on the outer wall of the pressing ring, a second curved surface is arranged on the inner wall of the support ring, the minimum diameter of the first curved surface is smaller than the minimum diameter of the second curved surface, the diameter of the first curved surface is gradually reduced in the direction from one end of the pressing ring, which is far away from the support ring, to the end, which is close to the support ring, the variation trend of the diameter of the second curved surface is the same as that of the diameter of the first curved surface, the positioning unit fixes the ring blank on the support ring, and the pressing ring is used for pressing the ring blank on the support ring,
the second punching tool comprises a punching ring, a positioning ring and a base, the punching ring is superposed with the axis of the positioning ring, the punching ring is arranged at an interval with the positioning ring, the punching ring is superposed with the axis of the positioning ring, the inner edge region is tightly pressed on the base by the positioning ring, a third curved surface corresponding to the first curved surface is arranged on the outer wall of the positioning ring, a fourth curved surface is arranged on the base, a positioning space is formed between the fourth curved surface and the third curved surface, the positioning space is used for positioning the inner edge region of the circular ring blank, the variation trend of the diameter of the third curved surface is the same as that of the diameter of the first curved surface,
be provided with the fifth curved surface on the inner wall on the punching ring, minimum diameter on the fifth curved surface is greater than maximum diameter on the third curved surface, the trend of change of the diameter of fifth curved surface with the trend of change of the diameter of first curved surface is opposite, the punching ring be used for with the outward flange region compresses tightly on the fourth curved surface of base.
Optionally, the positioning unit includes an annular groove and an annular plate, the annular groove is coaxially disposed at an end of the support ring close to the clamp ring, the annular plate is coaxially connected to the support ring, the annular plate is used for clamping the outer edge region in the annular groove, and an inner diameter of the annular plate is larger than an outer diameter of the clamp ring.
Optionally, the second punching press frock still includes the guide unit, the guide unit includes deflector and a plurality of guide bolt, the deflector is fixed the holding ring is close to the one end of punching press ring, guide bolt connects the deflector with the base, every guide bolt's axis all with the axis of holding ring is parallel.
Optionally, the base includes shaping ring and fixing base, the shaping ring is fixed on the fixing base, the shaping ring with the holding ring is coaxial, the fourth curved surface is located the shaping ring is close to on one end of stamping ring.
Optionally, a positioning spigot is arranged on the fixed seat, and the inner diameter of the positioning spigot is equal to the outer diameter of the forming ring.
Optionally, an avoidance curved surface is arranged in the circumferential direction of the inner wall of the stamping ring, the minimum diameter of the avoidance curved surface is larger than the maximum diameter of the fifth curved surface, and the outer diameter of the forming ring is equal to the minimum diameter of the avoidance curved surface.
Optionally, be provided with a plurality of through-holes in the circumference of stamping ring, it is protruding that the coaxial annular that is provided with on the shaping ring, be provided with on the annular arch with a plurality of unthreaded holes of a plurality of through-hole one-to-ones, every the through-hole with every all insert in the unthreaded hole and establish a bolt, the bolt is close to trapezoidal hole has been seted up on the end of stamping ring, be provided with in the trapezoidal hole with trapezoidal hole matched with wedge, the wedge will the bolt fastening is in on the stamping ring.
Optionally, a U-shaped groove is provided on the wedge block.
Optionally, the annular plate is connected with the support ring through a bolt, and a nut corresponding to the bolt is arranged on the annular plate.
Optionally, a circular hole coaxial with the positioning ring is arranged on the guide plate.
The technical scheme provided by the embodiment of the invention has the following beneficial effects: the positioning unit in the first stamping tool is used for positioning the ring blank on the support ring, the first curved surface on the compression ring is gradually reduced in the direction towards the support ring, and the first curved surface on the compression ring compresses the ring blank on the second curved surface of the support ring to obtain the ring blank with the inner edge area being stamped. Because the change trend of the diameter of the second curved surface is the same as that of the diameter of the first curved surface, the inner edge area of the ring blank punched by the first curved surface and the second curved surface can keep better uniformity. Further fix the inner fringe region of ring blank between the third curved surface of holding ring and the fourth curved surface of base, the third curved surface corresponds with first curved surface, and the inner fringe region that compresses tightly through first curved surface and obtain can be well fixed by the holding ring. And the minimum diameter that sets up on the punching ring is greater than the maximum diameter on the third curved surface and the trend of change of diameter is opposite with the trend of change of the diameter of first curved surface, can compress tightly the outer fringe region of ring blank on the fourth curved surface, can combine the third curved surface to accomplish the punching press simultaneously in punching press inner fringe region and outer fringe region. In the structure, the inner edge region of the ring blank is preliminarily stamped through the first stamping tool to obtain a stamped blank, and then the second stamping tool is used for integrally stretching and stamping the stamped blank (stamping the inner edge region and the outer edge region) instead of stamping the inner edge region and the outer edge region of the ring blank at one time, so that the ring blank is stressed uniformly, and the obtained thin-wall irregular part is good in quality.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below,
fig. 1 is a schematic structural diagram of a ring blank of a thin-walled profile provided by an embodiment of the invention;
FIG. 2 is a schematic diagram of a stamped blank according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a thin-wall special-shaped piece provided by the embodiment of the invention;
fig. 4 is a schematic view of a use state of a first stamping tool provided in an embodiment of the present invention;
fig. 5 is a schematic view of a use state of a second stamping tool provided in an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a base according to an embodiment of the present invention;
fig. 7 is a schematic view illustrating another use state of the second stamping tool according to the embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a wedge provided in an embodiment of the present invention;
fig. 9 is a side view of a wedge block provided by an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
To facilitate understanding of the present invention, fig. 1 is provided, and fig. 1 is a schematic structural view of a ring blank of a thin-walled profile according to an embodiment of the present invention. As shown in fig. 1, the ring blank 10 is a ring-shaped plate, and during the actual stamping process, the ring blank 10 can be divided into an inner edge region 101 and an outer edge region 102, the inner edge region 101 is located within the boundary diameter 10a of the ring blank 10, and the outer edge region 102 is located outside the boundary diameter 10a of the ring blank 10. The ratio of the dividing diameter 10a to the outer diameter of the ring blank 10 is 5: 6.
Fig. 2 is a schematic structural diagram of a punched blank according to an embodiment of the present invention, and as shown in fig. 2, an inner edge region 101 of a ring blank 10 is punched, and an outer edge region 102 of the ring blank 10 is not punched yet.
Fig. 3 is a schematic structural diagram of a thin-walled profile member according to an embodiment of the present invention, and as shown in fig. 3, after the punching of the punching inner edge region 101a and the punching outer edge region 102, the thin-walled profile member 20 is obtained.
Fig. 4 is a schematic view of a use state of a first stamping tool according to an embodiment of the present invention, and as shown in fig. 4, the first stamping tool 1 includes a pressing ring 11, a positioning unit 12, and a support ring 13. The axis of the compression ring 11 coincides with that of the support ring 13, the compression ring 11 and the support ring 13 are arranged at an interval, a first curved surface 111 is arranged on the outer wall of the compression ring 11, a second curved surface 131 is arranged on the inner wall of the support ring 13, the minimum diameter of the first curved surface 111 is smaller than that of the second curved surface 131, the diameter of the first curved surface 111 is gradually reduced in the direction A from one end, far away from the support ring 13, of the compression ring 11 to one end close to the support ring 13, the variation trend of the diameter of the second curved surface 131 is the same as that of the diameter of the first curved surface 111, the positioning unit 12 fixes the ring blank 10 on the support ring 13, and the compression ring 11 is used for compressing the ring blank 10 on the support ring 13.
Fig. 5 is a schematic view of a second stamping tool according to an embodiment of the present invention, where the second stamping tool 2 is used for stamping the circular ring blank 10 to obtain the thin-walled special-shaped member 20. As shown in fig. 5, the second stamping tool 2 includes a stamping ring 21, a positioning ring 22 and a base 23. The axis of the punching ring 21 coincides with that of the positioning ring 22, the punching ring 21 and the positioning ring 22 are arranged at intervals, the axis of the punching ring 21 coincides with that of the positioning ring 22, the inner edge region 101 is pressed on the base 23 by the positioning ring 22, the outer wall of the positioning ring 22 is provided with a third curved surface 221 corresponding to the first curved surface 111, the base 23 is provided with a fourth curved surface 231, a positioning space B is formed between the fourth curved surface 231 and the third curved surface 221, the positioning space B is used for positioning the inner edge region 101 of the circular ring blank 10, and the variation trend of the diameter of the third curved surface 221 is the same as that of the diameter of the first curved surface 111.
The inner wall of the stamping ring 21 is provided with a fifth curved surface 211, the minimum diameter of the fifth curved surface 211 is larger than the maximum diameter of the third curved surface 221, the change trend of the diameter of the fifth curved surface 211 is opposite to the change trend of the diameter of the first curved surface 111, and the stamping ring 21 is used for pressing the outer edge area 102 on the fourth curved surface 231 of the base 23.
The positioning unit 12 in the first stamping tool 1 is firstly used to position the ring blank 10 on the support ring 13, the first curved surface 111 on the compression ring 11 is gradually reduced in the direction toward the support ring 13, and the first curved surface 111 on the compression ring 11 presses the ring blank 10 on the second curved surface 131 of the support ring 13, so as to obtain the ring blank 10 with the punched inner edge region 101. Since the diameter of the second curved surface 131 has the same variation tendency as that of the first curved surface 111, the inner edge region 101 of the ring blank 10 punched by the first curved surface 111 and the second curved surface 131 can maintain a better uniformity. Further, the inner edge region 101 of the ring blank 10 is fixed between the third curved surface 221 of the positioning ring 22 and the fourth curved surface 231 of the base 23, the third curved surface 221 corresponds to the first curved surface 111, and the inner edge region 101 obtained by compressing the first curved surface 111 can be well fixed by the positioning ring 22. And the fifth curved surface 211 which is provided on the punching ring 21 and has a minimum diameter larger than the maximum diameter of the third curved surface 221 and a diameter variation tendency opposite to the diameter variation tendency of the first curved surface 111 can press the outer edge region of the ring blank 10 against the fourth curved surface 231, and can complete the simultaneous punching of the inner edge region 101 and the outer edge region 102 in combination with the third curved surface 221. In the structure, the inner edge region 101 of the ring blank 10 is firstly subjected to preliminary stamping through the first stamping tool 1 to obtain the ring blank 10, and then the second stamping tool 2 is used for completing the overall stretching and stamping (the inner edge region 101 and the outer edge region 102) of the ring blank 10 instead of stamping the inner edge region 101 and the outer edge region 102 of the ring blank 10 at one time, so that the ring blank 10 is stressed uniformly, and the obtained thin-wall irregular part is good in quality.
Moreover, by adopting the structure of respectively stamping the inner edge region 101 and the outer edge region 102 of the annular blank 10, the problem that the thin-wall special-shaped piece is directly pressed on the workpiece and cannot be taken out can be avoided.
As shown in fig. 4, the positioning unit 12 may include an annular groove 121 and an annular plate 122, the annular groove 121 is coaxially disposed at one end of the support ring 13 close to the pressing ring 11, the annular plate 122 is coaxially connected to the support ring 13, the annular plate 122 is used for pressing the annular blank 10 in the annular groove 121, and the inner diameter of the annular plate 122 is larger than the outer diameter of the pressing ring 11. Due to the arrangement, the pressing ring 11 can smoothly stamp the inner edge region 101 of the ring blank 10, the accurate positioning of the ring blank 10 can be ensured, and the stamping precision of the ring blank 10 can be ensured.
As shown in fig. 4, the pressing ring 11 is detachably connected to the punch 40 to punch the ring blank 10 on the support ring 13, and this arrangement also facilitates the detachment.
Alternatively, the annular plate 122 and the support ring 13 may be connected by bolts, and nuts corresponding to the bolts are provided on the annular plate 122. This connection is easy to implement.
As shown in fig. 5, the inner wall of the press ring 21 is provided with a curved relief surface 212 in the circumferential direction, the minimum diameter of the curved relief surface 212 is larger than the maximum diameter of the fifth curved surface 211, and the outer diameter of the forming ring 231 is equal to the minimum diameter of the curved relief surface 212. The arrangement of the avoiding curved surface 212 can enable the stamping ring 21 to be smoothly pressed on the fourth curved surface 231, and the stamping quality of the outer edge region 102 is prevented from being influenced by the impact which may be generated between the base 23 and the stamping ring 21.
As shown in fig. 5, the second stamping tool 2 further includes a guiding unit 24, the guiding unit 24 includes a guiding plate 241 and a plurality of guiding bolts 242, the guiding plate 241 is fixed at one end of the positioning ring 22 close to the stamping ring 21, the guiding bolts 242 connect the guiding plate 241 and the base 23, and an axis of each guiding bolt 242 is parallel to an axis of the positioning ring 22. The guide plate 241 in the guide unit 24 is fixedly connected with the positioning ring 22, the guide plate 241 is connected with the base 23 through the guide bolt 242, the guide bolt 242 can make the positioning ring 22 displace in the radial direction of the guide bolt 242 on the surface, and the positioning ring 22 is ensured to stably fix the ring blank 10 on the base 23.
The guide bolt 242 and the base 23 may be connected by a nut.
Alternatively, the guide plate 241 may be provided with a circular hole coaxial with the positioning ring 22. The circular hole may facilitate the guiding and positioning of the guide plate 241.
As shown in fig. 5, the second stamping tool 2 may further include a connecting plate 25, one surface of the connecting plate 25 is connected to the stamping machine 40, the other surface of the connecting plate 25 is connected to the stamping ring 21, and the connecting plate 25 is perpendicular to the axial direction of the stamping ring 21. The connecting plate 25 can enhance the connection stability between the stamping ring 21 and the stamping machine 40, and ensure that the stamping ring 21 can stamp the outer edge area 102 of the ring blank 10 stably.
Fig. 6 is a schematic structural diagram of the base according to the embodiment of the present invention, as shown in fig. 6, the base 23 includes a forming ring 231 and a fixing seat 232, the forming ring 231 is fixed on the fixing seat 232, the forming ring 231 is coaxial with the positioning ring 22, and the fourth curved surface 231 is located at one end of the forming ring 231 close to the stamping ring 21. The base 23 is provided with a structure of the forming ring 231 and the fixing seat 232, which is convenient for manufacturing and dismounting.
A portion of the fourth curved surface 231 corresponding to the third curved surface 221 may be an inner region 231a, a portion of the fourth curved surface 231 corresponding to the fifth curved surface 211 may be an outer region 231b, the inner region 231a and the outer region 231b are separated by a separation diameter 10a, a variation trend of the diameter of the inner region 231a is the same as a variation trend of the diameter of the third curved surface 221, and a variation trend of the diameter of the outer region 231b is the same as a variation trend of the diameter of the fifth curved surface 211. This arrangement results in a thinner-walled profile 20 with a more uniform wall thickness and a guaranteed quality.
The inner region 231a and the outer region 231b of the fourth curved surface 231 are both located at one end of the forming ring 231 close to the stamping ring 21, and the inner region 231a and the outer region 231b are respectively located on the inner wall and the outer wall of the forming ring 231.
Wherein, the fixing seat 232 can be provided with a positioning spigot 232a, and the inner diameter of the positioning spigot 232a is equal to the outer diameter of the forming ring 231. The setting of location tang can be convenient for the shaping ring 231 fix a position on fixing base 232 fast, and when the dismouting of being convenient for, also can guarantee the positioning accuracy of ring blank 10 on the second frock and then guarantee the machining precision of ring blank 10.
It should be noted that, in the present invention, although the inner edge region 101 and the outer edge region 102 of the ring blank 10 are respectively punched by the first punching tool 1 and the second punching tool 2, since the inner edge region 101 and the outer edge region 102 both receive a punching pulling force during punching, when the ring blank 10 is preliminarily punched, a gap that may exist between the pressing ring 11 and the ring plate 122 does not leave a trace on the ring blank 10, and a gap between the pressing ring 21 and the positioning ring 22 in the second punching tool 2 does not leave a trace on the ring blank 10.
Fig. 7 is a schematic view of another use state of the second punching tool provided in the embodiment of the present invention, in which the punching ring 21 in the second punching tool 2 presses the outer edge region 102 of the ring blank 10 against the forming ring 231.
With reference to fig. 5 to 7, a plurality of through holes 21a are formed in the circumferential direction of the stamping ring 21, an annular protrusion 233 is coaxially formed on the forming ring 231, a plurality of light holes 233a corresponding to the plurality of through holes 21a one to one are formed in the annular protrusion 233, a bolt 234 is inserted into each of the through holes 21a and each of the light holes 233a, a trapezoidal hole 234a is formed in the end of the bolt 234 close to the stamping ring 21, a wedge 235 matched with the trapezoidal hole 234a is formed in the trapezoidal hole 234a, and the bolt 234 is fixed to the stamping ring 21 by the wedge 235. After the second punching tool 2 finishes punching the outer edge area 102 of the ring blank 10, the second tool can be kept in the state shown in fig. 6, and then the punching ring 21 is removed from the punching machine 40, the bolt 234 is inserted into the light hole 233a of the annular protrusion 233 and the corresponding through hole 21a of the punching ring 21, the wedge 235 is inserted into the trapezoidal hole 234a of the bolt 234, and the bolt 234 is used for connecting the punching ring 21 and the forming ring 231. Further, the thin-wall special-shaped piece 20 can be subjected to heat treatment, stress existing in the thin-wall special-shaped piece 20 is eliminated, and the processing quality of the thin-wall special-shaped piece 20 is improved. The engagement of wedge 235 with bolt 234 facilitates removal and the prior art arrangement of a nut to secure bolt 234 to stamped ring 21 may present a problem in that bolt 234 cannot be removed.
Fig. 8 is a schematic structural view of a wedge-shaped block provided in an embodiment of the present invention, and fig. 9 is a side view of the wedge-shaped block provided in the embodiment of the present invention, and as shown in fig. 9, a U-shaped groove 235a is provided on the wedge-shaped block 235. The U-shaped groove 235a is arranged to enable the wedge-shaped block 235 to have certain elasticity, the space of the U-shaped groove 235a on the wedge-shaped block 235 is pressed to enable the wedge-shaped block 235 to enter the trapezoidal hole 234a, after the wedge-shaped block 235 enters the trapezoidal hole 234a, the space of the U-shaped groove 235a rebounds, and the trapezoidal hole 234a is propped open to fix the wedge-shaped block 235 in the trapezoidal hole 234 a.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A processing device for thin-wall special-shaped pieces is characterized by comprising a first punching tool (1) and a second punching tool (2), wherein the first punching tool (1) is used for punching an inner edge region (101) of a circular ring blank (10) to obtain a punched inner edge region (101a), the second punching tool (2) is used for punching the punched inner edge region (101a) and an outer edge region (102) of the circular ring blank (10),
the first stamping tool (1) comprises a pressing ring (11), a positioning unit (12) and a support ring (13), wherein the axis of the pressing ring (11) is overlapped with that of the support ring (13), the pressing ring (11) and the support ring (13) are arranged at intervals, the pressing ring (11) is used for pressing the inner edge area (101) on the support ring (13), a first curved surface (111) is arranged on the outer wall of the pressing ring (11), a second curved surface (131) is arranged on the inner wall of the support ring (13), the minimum diameter of the first curved surface (111) is smaller than that of the second curved surface (131), the diameter of the first curved surface (111) is gradually reduced in the direction from one end, far away from the support ring (13), of the pressing ring (11) to one end close to the support ring (13), and the variation trend of the diameter of the second curved surface (131) is the same as that of the first curved surface (111), the positioning unit (12) fixes the ring blank (10) on the support ring (13),
the second punching tool (2) comprises a punching ring (21), a positioning ring (22) and a base (23), the punching ring (21) and the positioning ring (22) are overlapped in axis, the punching ring (21) and the positioning ring (22) are arranged at intervals, the inner edge region (101) is tightly pressed on the base (23) by the positioning ring (22), a third curved surface (221) corresponding to the first curved surface (111) is arranged on the outer wall of the positioning ring (22), a fourth curved surface (231) is arranged on the base (23), a positioning space (B) is formed between the fourth curved surface (231) and the third curved surface (221), the positioning space (B) is used for positioning the punching inner edge region (101a), and the variation trend of the diameter of the third curved surface (221) is the same as that of the diameter of the first curved surface (111),
be provided with fifth curved surface (211) on the inner wall on punching ring (21), minimum diameter on fifth curved surface (211) is greater than maximum diameter on third curved surface (221), the trend of change of the diameter of fifth curved surface (211) with the trend of change of the diameter of first curved surface (111) is opposite, punching ring (21) be used for with outer border region (102) compress tightly on fourth curved surface (231).
2. A processing apparatus of a thin-walled profile according to claim 1, wherein the positioning unit (12) comprises an annular groove (121) and an annular plate (122), the annular groove (121) is coaxially arranged at one end of the support ring (13) close to the compression ring (11), the annular plate (122) is coaxially connected to the support ring (13), the annular plate (122) is used for compressing the outer edge region (102) of the ring blank (10) in the annular groove (121), and the inner diameter of the annular plate (122) is larger than the outer diameter of the compression ring (11).
3. The thin-walled profile machining device according to claim 1, wherein the second punching tool (2) further comprises a guide unit (24), the guide unit (24) comprises a guide plate (241) and a plurality of guide bolts (242), the guide plate (241) is fixed at one end of the positioning ring (22) close to the punching ring (21), the guide bolts (242) connect the guide plate (241) with the base (23), and the axis of each guide bolt (242) is parallel to the axis of the positioning ring (22).
4. A processing apparatus of a thin-walled profile according to any one of claims 1 to 3, wherein the base (23) comprises a forming ring (231) and a fixing seat (232), the forming ring (231) is fixed on the fixing seat (232), the forming ring (231) is coaxial with the positioning ring (22), and the fourth curved surface (231) is located at an end of the forming ring (231) close to the stamping ring (21).
5. A processing apparatus of a thin-walled profile according to claim 4, wherein the fixing holder (232) is provided with a positioning spigot (232a), and the inner diameter of the positioning spigot (232a) is equal to the outer diameter of the forming ring (231).
6. The processing device of the thin-wall special-shaped piece according to claim 4, wherein an avoiding curved surface (212) is arranged on the inner wall of the stamping ring (21) in the circumferential direction, the minimum diameter of the avoiding curved surface (212) is larger than the maximum diameter of the fifth curved surface (211), and the outer diameter of the forming ring 231 is equal to the minimum diameter of the avoiding curved surface (212).
7. The processing device of the thin-wall special-shaped piece according to claim 4, wherein a plurality of through holes (21a) are formed in the circumferential direction of the stamping ring (21), the forming ring 231 is coaxially provided with an annular protrusion (233), the annular protrusion (233) is provided with a plurality of light holes (233a) corresponding to the through holes (21a) one by one, each of the through holes (21a) and the light holes (233a) is provided with a bolt (234), the end of the bolt (234) close to the stamping ring (21) is provided with a trapezoidal hole (234a), a wedge-shaped hole (235) matched with the trapezoidal hole (234a) is formed in the trapezoidal hole (234a), and the bolt (234) is fixed on the stamping ring (21) by the wedge-shaped block (235).
8. A thin-walled profile according to claim 7, wherein the wedge-shaped blocks (235) are provided with U-shaped grooves (235 a).
9. A processing apparatus of a thin-walled profile according to claim 2, wherein the annular plate (122) is connected to the support ring (13) by bolts, and nuts corresponding to the bolts are provided on the annular plate (122).
10. A device for processing a thin-walled profile according to claim 3, wherein the guide plate (241) is provided with a circular hole coaxial with the positioning ring (22).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910246778.3A CN110125219B (en) | 2019-03-29 | 2019-03-29 | Processing device for thin-wall special-shaped piece |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910246778.3A CN110125219B (en) | 2019-03-29 | 2019-03-29 | Processing device for thin-wall special-shaped piece |
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| CN110125219A CN110125219A (en) | 2019-08-16 |
| CN110125219B true CN110125219B (en) | 2020-12-08 |
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| CN113500141B (en) * | 2021-07-16 | 2023-06-23 | 深圳市鹏福创新科技有限公司 | High-light-transmission light and thin cover plate and production process thereof |
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|---|---|---|---|---|
| US4377084A (en) * | 1980-12-29 | 1983-03-22 | The Stolle Corporation | Press apparatus having resilient stop blocks |
| US8727169B2 (en) * | 2010-11-18 | 2014-05-20 | Ball Corporation | Metallic beverage can end closure with offset countersink |
| CN202877384U (en) * | 2012-10-26 | 2013-04-17 | 苏州银艺文化发展有限公司 | Roll rim composite die |
| CN104438597A (en) * | 2014-12-07 | 2015-03-25 | 绥阳县耐环铝业有限公司 | Punching machine for aluminium plate |
| CN107614140B (en) * | 2015-05-27 | 2020-04-14 | 斯多里机械有限责任公司 | Container, selectively shaped shell and tool for providing shell and related method |
| CN108043969A (en) * | 2017-11-10 | 2018-05-18 | 武汉船用机械有限责任公司 | A kind of processing unit (plant) and processing method of gas turbine rectification cover wall |
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2019
- 2019-03-29 CN CN201910246778.3A patent/CN110125219B/en active Active
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