Stamping forming die and forming method for cable support ring sleeve

Abstract

The invention relates to a cable support ring sleeve punch forming die and a forming method. The device comprises a first stamping die, the first stamping die comprises a first lower die and a first upper die which are matched with each other, the first upper die is provided with a shaping groove matched with a first outline in shape, and the first lower die is provided with a shaping male die matched with the shaping groove in shape; the second stamping die comprises a second lower die and a second upper die which are matched with each other, the second lower die comprises a first positioning groove and a second positioning groove, the first positioning groove is matched with the first outline in shape, the second positioning groove is located in the middle of the first positioning groove and matched with the second linear section and the transition section in shape, and the second upper die comprises a stamping male die. The processing efficiency of punch forming of the cable support ring sleeve is improved, the processing precision is improved, the deviation of finished products is reduced, the operation process is simplified, and the labor intensity is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of industrial manufacturing, and in particular to a cable support ring sleeve stamping forming die and a forming method. Background Art

[0002] The cable bracket ring is a common connector that plays a vital role in the installation and fixing of the cable bracket. The cable bracket ring usually needs to have high-precision dimensions, good mechanical strength and stable processing quality to meet the needs of practical applications.

[0003] However, due to the complex structure of the cable bracket ring and the high processing precision requirements, the traditional multi-step processing method has a long production cycle and cannot meet the needs of large-scale production. In addition, the operation is complex and the position of the workpiece and the mold needs to be adjusted frequently during the processing, which increases the difficulty of operation and the labor intensity of workers. It is easy to cause inaccurate positioning of the workpiece, resulting in processing deviation and affecting product quality. In addition, the existing mold design is not optimized enough, and does not fully consider the workpiece positioning, stamping accuracy and operation convenience, resulting in a low yield rate. Summary of the invention

[0004] To this end, the present invention provides a cable bracket ring sleeve stamping forming die and forming method, which improves the processing efficiency of the cable bracket ring sleeve stamping forming, and improves the processing accuracy, reduces the deviation of the finished product, simplifies the operation process and reduces the labor intensity.

[0005] In order to solve the above technical problems, the present invention provides a punching and forming die for a cable bracket ring sleeve, wherein the cable bracket ring sleeve has a semi-finished state and a finished state during the punching and forming process, and when in the semi-finished state, the cable bracket ring sleeve has a symmetrical first contour, wherein the first contour includes a horizontal first straight line segment and a first curved portion symmetrically extending at two ends of the first straight line segment, wherein the first curved portion includes a first arc segment respectively bent downwardly along two ends of the first straight line segment and a second arc segment bent upwardly along the end of each first curved segment; when in the finished state, the cable bracket ring sleeve has a symmetrical second contour, wherein the second contour includes a second straight line segment, a transition segment bent and extended to the second straight line segment, and a second curved portion extending to the transition segment and having the same contour as the first curved portion; The stamping die comprises: The first stamping die comprises a first lower die and a first upper die which cooperate with each other, wherein the first upper die is provided with a shaping groove which matches the first contour shape, and the first lower die is provided with a shaping convex die which matches the shape of the shaping groove; wherein the shaping convex die can be plugged into the shaping groove to form a shaping cavity which matches the shape of the cable bracket sleeve in the semi-finished state between the two; The second stamping die comprises a second lower die and a second upper die which cooperate with each other, the second lower die comprises a first positioning groove and a second positioning groove, the first positioning groove is adapted to the first contour shape, the second positioning groove is located in the middle of the first positioning groove and is adapted to the shape of the second straight line segment and the transition segment, and the second upper die comprises a stamping punch; wherein, when the cable holder ring sleeve in the semi-finished state is placed on the first positioning groove, the stamping punch can abut against the middle of the first straight line segment so that the middle of the first straight line segment enters the second positioning groove, and at the same time, the first curved portion rotates and abuts against the side end of the stamping punch to form the second curved portion, thereby obtaining the cable holder ring sleeve in the finished state.

[0006] In one embodiment of the present invention, a first mold positioning portion, a first mold separation portion and a first workpiece positioning portion are arranged between the first lower mold and the first upper mold, the first mold positioning portion is used for guiding and positioning the first upper mold and the first lower mold during stamping, the first mold separation portion is used for separating the first upper mold and the first lower mold, and the first workpiece positioning portion is used for positioning between the workpiece and the first lower mold.

[0007] In one embodiment of the present invention, the first mold positioning portion includes a first lower mold guide column arranged on the first lower mold and a first upper mold guide hole arranged on the first upper mold and slidingly matched with the first lower mold guide column, and the first workpiece positioning portion includes a punch guide column arranged on the shaping punch and capable of passing through the positioning hole of the workpiece, and a groove guide hole arranged on the shaping groove and slidingly matched with the punch guide column.

[0008] In one embodiment of the present invention, the first mold separation portion includes a first threaded column threadedly connected and passing through the bottom end of the first upper mold, and the first threaded column can extend and push the top end of the first lower mold when rotating to separate the first upper mold and the first lower mold.

[0009] In one embodiment of the present invention, a second mold positioning portion, a second mold separation portion and a second workpiece positioning portion are provided between the second lower mold and the second upper mold, the second mold positioning portion is used for guiding and positioning the second upper mold and the second lower mold during stamping, the second mold separation portion is used for separating the second upper mold and the second lower mold, and the second workpiece positioning portion is used for positioning between the workpiece and the second lower mold.

[0010] In one embodiment of the present invention, the second mold positioning portion includes a second lower mold guide column arranged on the second lower mold and a second upper mold guide hole arranged on the second upper mold and slidingly matched with the second lower mold guide column, and the second workpiece positioning portion includes a positioning groove guide column arranged on the second positioning groove and capable of passing through the positioning hole of the workpiece and a punch guide hole arranged on the stamping punch and slidingly matched with the positioning groove guide column.

[0011] In one embodiment of the present invention, the second mold separation portion includes a second threaded column threadedly connected and passing through the bottom end of the second upper mold, and the second threaded column can extend and push the top end of the second lower mold when rotating to separate the second upper mold and the second lower mold.

[0012] In one embodiment of the present invention, first grooves are provided on both sides of the stamping punch, and second grooves are provided on both sides of the first positioning groove. When the second lower die and the second upper die are matched, a clearance cavity for the first curved part to rotate is formed between the first groove and the second groove.

[0013] In one embodiment of the present invention, the stamping punch is cylindrical and includes a radial positioning surface. When the first curved portion rotates, the second arc segment can be against the radial positioning surface to control the size of the opening end of the cable holder ring sleeve. The opening end of the cable holder ring sleeve is formed between the second arc segments of each of the two second curved portions.

[0014] The present invention also provides a cable support ring sleeve punching forming method, using the cable support ring sleeve punching forming die, the punching forming method comprises: Providing a workpiece blank, and placing the workpiece blank on a shaping punch of a first lower die; Controlling and starting the first stamping die, so that the shaping groove of the first upper die and the shaping punch of the first lower die are closed, and the workpiece blank is shaped into a semi-finished workpiece with a first contour by the punching force; After the stamping is completed, the first upper die and the first lower die are separated by the first separation part to take out the semi-finished workpiece; Placing the semi-finished cable bracket ring sleeve in the first positioning groove of the second lower mold so that its first contour matches the first positioning groove; Controlling and starting the second stamping die, so that the stamping punch of the second upper die cooperates with the second lower die, and the middle part of the first straight line segment is pressed downward into the second positioning groove. During the stamping process, the first straight line segment of the first contour is deformed to form a second straight line segment and a transition segment, and at the same time, the first curved portion is rotated and abuts against the side end of the stamping punch to form the second curved portion, thereby obtaining a finished workpiece with a second contour; After the stamping is completed, the second upper die is separated from the second lower die by the second die separation part to take out the finished workpiece.

[0015] The above technical solution of the present invention has the following advantages compared with the prior art: The cable bracket ring sleeve stamping forming die and forming method described in the present invention are designed with two sets of stamping dies, the first set of dies is used for semi-finished product processing, and the second set of dies is used for finished product processing. The processing stability and efficiency are improved by the step-by-step stamping method. The die adopts a reasonable positioning structure and pressure distribution design to ensure stamping accuracy and reduce the generation of offset and defective products. At the same time, by optimizing the die structure and process flow, the operation complexity is reduced and the service life of the die is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the main structure of the cable support ring sleeve in a semi-finished state of the present invention.

[0018] Figure 2 It is a schematic diagram of the top view of the cable support ring sleeve in a semi-finished state of the present invention.

[0019] Figure 3 It is a schematic diagram of the main structure of the cable support ring sleeve in the finished product state of the present invention.

[0020] Figure 4 It is a schematic diagram of the top view of the cable support ring sleeve in the finished product state of the present invention.

[0021] Figure 5 It is a schematic diagram of the main structure of the workpiece blank of the present invention.

[0022] Figure 6 It is a schematic diagram of the top view of the workpiece blank of the present invention.

[0023] Figure 7 It is a schematic diagram of the main structure of the first stamping die of the present invention.

[0024] Figure 8 It is a schematic diagram of the top structure of the first stamping die of the present invention.

[0025] Fig. 9 It is a schematic cross-sectional structural diagram of the first stamping die of the present invention.

[0026] Fig.10 It is a schematic diagram of the main structure of the first upper mold of the present invention.

[0027] Fig.11 It is a schematic diagram of the bottom view of the structure of the first upper mold of the present invention.

[0028] Fig.12 It is a schematic diagram of the top structure of the first upper mold of the present invention.

[0029] Fig.13 yes Fig.12 Cross-sectional view along the AA direction.

[0030] Fig.14 It is a schematic diagram of the main structure of the first lower mold of the present invention.

[0031] Fig.15 It is a schematic diagram of the top structure of the first lower mold of the present invention.

[0032] Fig.16 It is a schematic diagram of the main structure of the second stamping die of the present invention.

[0033] Fig.17 It is a schematic diagram of the top structure of the second stamping die of the present invention.

[0034] Fig.18 It is a schematic cross-sectional structural diagram of the second stamping die of the present invention.

[0035] Fig.19 It is a schematic diagram of the main structure of the second lower mold of the present invention.

[0036] Fig. 20 It is a schematic diagram of the top structure of the second lower mold of the present invention.

[0037] Fig.21 It is a schematic diagram of the main structure of the second upper mold of the present invention.

[0038] Fig. 22 It is a schematic diagram of the top structure of the second upper mold of the present invention.

[0039] Fig.23 yes Fig. 22 Cross-sectional view along direction BB.

[0040] Fig.24 It is a schematic diagram of the cable support ring sleeve forming process of the present invention.

[0041] Description of the Figures in the Specification: 1. Semi-finished product state; 11. First contour; 111. First straight line segment; 112. First curved portion; 113. First arc segment; 114. Second arc segment; 2. Finished product state; 21. Second contour; 211. Second straight line segment; 222. Transition segment; 223. Second curved line portion; 22. Open end; 3. First stamping die; 3a. First lower die; 31a. Shaping punch; 3b. First upper die; 31b. Shaping groove; 32. First die positioning part; 321. First lower die guide column; 322. First upper die guide hole; 33. First die separation part; 331. First threaded column; 34. First workpiece positioning part; 341. Punch guide column; 342. Groove guide hole; 4. Second stamping die; 4a. Second lower die; 41a. First positioning groove; 42a. Second positioning groove; 4b. Second upper die; 41b. Punch die; 411b. Radial positioning surface; 42. Second die positioning portion; 421. Second lower die guide column; 422. Second upper die guide hole; 43. Second die separation portion; 431. Second threaded column; 44. Second workpiece positioning portion; 441. Positioning groove guide column; 442. Punch die guide hole; 45. Make way cavity; 45a. First groove; 45b. Second groove; 5. Workpiece blank; 51. Positioning hole. DETAILED DESCRIPTION

[0042] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0043] In the present invention, if directions (up, down, left, right, front and back) are described, it is only for the convenience of describing the technical solution of the present invention, and does not indicate or imply that the technical features referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation of the present invention.

[0044] In the present invention, "several" means one or more, "multiple" means more than two, "greater than", "less than", "exceed" and the like are understood to exclude the number itself; "above", "below", "within" and the like are understood to include the number itself. In the description of the present invention, if there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0045] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected or electrically connected or able to communicate with each other; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0046] Reference Figures 1 to 4 As shown, a punching and forming die for a cable support ring of the present invention, the cable support ring has a semi-finished state 1 and a finished state 2 during the punching and forming process, when in the semi-finished state 1, the cable support ring has a symmetrical first contour 11, the first contour 11 includes a horizontal first straight line segment 111 and a first curved portion 112 symmetrically extending at both ends of the first straight line segment 111, the first curved portion 112 includes first arc segments 113 bent downward along both ends of the first straight line segment 111 and second arc segments 114 bent upward along the ends of each first arc segment 113; when in the finished state 2, the cable support ring has a symmetrical second contour 21, the second contour 21 includes a second straight line segment 211, a transition segment 222 bent and extending from the second straight line segment 211, and a second curved portion 223 extending from the transition segment 222 and having the same contour as the first curved portion 112.

[0047] Reference Figure 7 , Fig.16 As shown, the stamping die comprises: The first stamping die 3 comprises a first lower die 3a and a first upper die 3b which cooperate with each other, wherein the first upper die 3b is provided with a shaping groove 31b which is adapted to the shape of the first contour 11, and the first lower die 3a is provided with a shaping punch 31a which is adapted to the shape of the shaping groove 31b; wherein the shaping punch 31a can be plugged with the shaping groove 31b to form a shaping cavity which is adapted to the shape of the cable bracket ring sleeve in the semi-finished state 1 between the two; The second stamping die 4 includes a second lower die 4a and a second upper die 4b that cooperate with each other, the second lower die 4a includes a first positioning groove 41a and a second positioning groove 42a, the first positioning groove 41a is adapted to the shape of the first contour 11, the second positioning groove 42a is located in the middle of the first positioning groove 41a and is adapted to the shape of the second straight line segment 211 and the transition segment 222, and the second upper die 4b includes a stamping punch 41b; wherein, when the cable holder ring sleeve in the semi-finished state 1 is placed on the first positioning groove 41a, the stamping punch 41b can abut against the middle of the first straight line segment 111, so that the middle of the first straight line segment 111 enters the second positioning groove 42a, and at the same time, the first curved portion 112 rotates and abuts against the side end of the stamping punch 41b to form the second curved portion 223, thereby obtaining the cable holder ring sleeve in the finished state 2.

[0048] Through the above arrangement, by dividing the stamping forming into two stages, namely, semi-finished product state 1 and finished product state 2, the precision error caused by one-time forming of complex shapes is avoided, the difficulty of mold manufacturing is reduced, and it helps to ensure the dimensional accuracy of the final product.

[0049] Reference Figure 8 As shown, in one embodiment, a first mold positioning portion 32, a first mold separation portion 33 and a first workpiece positioning portion 34 are provided between the first lower mold 3a and the first upper mold 3b, the first mold positioning portion 32 is used for guiding and positioning the first upper mold 3b and the first lower mold 3a during stamping, the first mold separation portion 33 is used for separating the first upper mold 3b and the first lower mold 3a, and the first workpiece positioning portion 34 is used for positioning between the workpiece and the first lower mold 3a.

[0050] Specifically, refer to Figures 9 to 15 As shown, the first mold positioning part 32 includes a first lower mold guide column 321 provided on the first lower mold 3a and a first upper mold guide hole 322 provided on the first upper mold 3b and slidingly matched with the first lower mold guide column 321, and the first workpiece positioning part 34 includes a punch guide column 341 provided on the shaping punch 31a and capable of passing through the positioning hole 51 of the workpiece, and a groove guide hole 342 provided on the shaping groove 31b and slidingly matched with the punch guide column 341. Exemplarily, the punch guide column 341 is located in the middle of the shaping punch 31a and is provided with two in the longitudinal direction. At this time, the positioning hole 51 is correspondingly provided on the workpiece (i.e., the blank), and the two first lower mold guide columns 321 are distributed at the two lateral ends of the first lower mold guide column 321 and the punch guide column 341 can be cylindrical pins.

[0051] Specifically, the first mold separation part 33 includes a first threaded column 331 that is threadedly connected and passes through the bottom end of the first upper mold 3b. The first threaded column 331 can extend and push the top end of the first lower mold 3a when rotating to separate the first upper mold 3b from the first lower mold 3a. Exemplarily, four first threaded columns 331 are distributed at the four corners of the first upper mold 3b, and hexagon socket screws can be used.

[0052] The shaping groove 31b of the first upper die 3b and the shaping convex die 31a of the first lower die 3a are fully matched to ensure that the first contour 11 after the blank is formed is symmetrical in shape and consistent in size. The design of the first die separation part 33 (threaded column) makes it easier to separate the upper and lower dies, reduces the additional stress on the workpiece, and improves the operating efficiency. The design of the positioning part (such as the guide column and the guide hole) ensures the guiding accuracy during the stamping process and prevents the processing deviation caused by the displacement of the workpiece position.

[0053] In one embodiment, referring to Fig.17As shown, a second mold positioning portion 42, a second mold separation portion 43 and a second workpiece positioning portion 44 are arranged between the second lower mold 4a and the second upper mold 4b, the second mold positioning portion 42 is used for guiding and positioning the second upper mold 4b and the second lower mold 4a during stamping, the second mold separation portion 43 is used for separating the second upper mold 4b and the second lower mold 4a, and the second workpiece positioning portion 44 is used for positioning between the workpiece and the second lower mold 4a.

[0054] Specifically, refer to Figures 19 to 23 As shown, the second mold positioning part 42 includes a second lower mold guide column 421 provided on the second lower mold 4a and a second upper mold guide hole 422 provided on the second upper mold 4b and slidably matched with the second lower mold guide column 421, and the second workpiece positioning part 44 includes a positioning groove guide column 441 provided on the second positioning groove 42a and capable of passing through the positioning hole 51 of the workpiece, and a punch guide hole 442 provided on the punch 41b and slidably matched with the positioning groove guide column 441. Exemplarily, the positioning groove guide column 441 is located in the middle of the second positioning groove 42a and is provided with two in the longitudinal direction, and passes through the corresponding positioning hole 51 on the workpiece (i.e., the cable bracket ring sleeve in the semi-finished state 1) at this time, and the two second lower mold guide columns 421 are distributed at the two lateral ends of the second lower mold 4a, and the second lower mold guide column 421 and the positioning groove guide column 441 can adopt cylindrical pins.

[0055] Specifically, the second mold separation part 43 includes a second threaded column 431 that is threadedly connected and passes through the bottom end of the second upper mold 4b, and the second threaded column 431 can extend and push the top end of the second lower mold 4a when rotating to separate the second upper mold 4b from the second lower mold 4a. Exemplarily, four second threaded columns 431 are distributed at the four corners of the second upper mold 4b, and hexagon socket screws can be used.

[0056] The first positioning groove 41a is completely consistent with the first contour 11 of the semi-finished product, ensuring that the workpiece is fixed and stable, providing a good foundation for subsequent stamping. The design of the clearance cavity 45 allows the first curved portion 112 to rotate freely during the stamping process, avoiding interference when the shape changes, and ensuring the consistency of the finished product contour. The design of the second mold separation part 43 (threaded column) simplifies the separation process of the upper and lower molds, can evenly separate the upper and lower molds, reduce mold damage caused by eccentric force, and improve operational convenience.

[0057] In one embodiment, first grooves 45a are provided on both sides of the stamping punch 41b, and second grooves 45b are provided on both sides of the first positioning groove 41a. When the second lower mold 4a and the second upper mold 4b are matched, a clearance cavity 45 for the first curved portion 112 to rotate is formed between the first groove 45a and the second groove 45b.

[0058] In one embodiment, the punching punch 41b is cylindrical and includes a radial positioning surface 411b. When the first curved portion 112 rotates, the second arc segment 114 can abut against the radial positioning surface 411b to control the size of the opening end 22 of the cable support ring. The opening end 22 of the cable support ring is formed between the second arc segments 114 of the two second curved portions 223. The radial positioning surface 411b of the punching punch 41b limits the maximum deviation of the first curved portion 112 when it rotates, ensuring the uniformity of the size of the opening end 22 of the cable support ring.

[0059] Reference Fig.24 As shown, the present invention also provides a cable bracket ring sleeve stamping forming method, using the cable bracket ring sleeve stamping forming die, the stamping forming method comprises: S1, providing a workpiece blank 5, which needs to meet the processing requirements of the subsequent stamping process, such as having certain ductility and strength, and being a rectangular metal sheet structure, and having a positioning hole 51 in the middle for positioning in the subsequent stamping process, and placing the workpiece blank 5 on the shaping punch 31a of the first lower die 3a; S2, control and start the first stamping die 3, so that the shaping groove 31b of the first upper die 3b and the shaping punch 31a of the first lower die 3a are closed, and the workpiece blank 5 is shaped into a semi-finished workpiece with a first profile 11 by the punching force; the first profile 11 includes a horizontal first straight line segment 111 and a first curved portion 112 symmetrically extending at both ends of the first straight line segment 111, and the first curved portion 112 includes first arc segments 113 respectively extending downward along both ends of the first straight line segment 111 and second arc segments 114 extending upward along the ends of each first arc segment 113; at this time, the positioning hole 51 is located on the first straight line segment 111; S3, after the stamping is completed, the first upper die 3b and the first lower die 3a are separated by the first separation portion (the pushing action of the first threaded column 331), and the semi-finished workpiece is taken out; S4, placing the cable support ring in the semi-finished state 1 in the first positioning groove 41a of the second lower mold 4a, so that the first contour 11 thereof matches the first positioning groove 41a; S5, control and start the second stamping die 4, so that the stamping punch 41b of the second upper die 4b cooperates with the second lower die 4a, and presses the middle part of the first straight segment 111 downward into the second positioning groove 42a. During the stamping process, the first straight segment 111 of the first profile 11 is deformed to form the second straight segment 211 and the transition segment 222, and at the same time, the first curved portion 112 rotates and abuts against the side end of the stamping punch 41b to form the second curved portion 223, thereby obtaining a finished workpiece having a second profile 21; the second profile 21 includes the second straight segment 211, the transition segment 222 that bends and extends from the second straight segment 211, and the second curved portion 223 that extends from the transition segment 222 and has the same profile as the first curved portion 112; at this time, the positioning hole 51 is located on the second straight segment 211; S6. After the stamping is completed, the second upper die 4b and the second lower die 4a are separated by the second die separation portion 43 (the pushing effect of the second threaded column 431), and the finished workpiece is taken out.

[0060] S7. Check whether the size and shape of the finished workpiece meet the design requirements to ensure the symmetry of the finished contour and the smoothness of the transition section 222.

[0061] The above method is closely connected through a multi-step process and is suitable for mass production, ensuring the consistency and accuracy of product size and shape.

[0062] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A cable bracket ring sleeve stamping die, characterized in that: The cable support ring has a semi-finished state (1) and a finished state (2) during the stamping process. In the semi-finished state (1), the cable support ring has a symmetrical first profile (11), the first profile (11) comprising a horizontal first straight line segment (111) and first curved portions (112) symmetrically extending at two ends of the first straight line segment (111), the first curved portion (112) comprising first arc segments (113) respectively extending downwardly along two ends of the first straight line segment (111) and second arc segments (114) extending upwardly along the ends of each first curved portion (113); in the finished state (2), the cable support ring has a symmetrical second profile (21), the second profile (21) comprising a second straight line segment (211), a transition segment (222) extending from the second straight line segment (211), and a second curved portion (223) extending from the transition segment (222) and having the same profile as the first curved portion (112); The stamping die comprises: A first stamping die (3) comprises a first lower die (3a) and a first upper die (3b) which cooperate with each other, wherein the first upper die (3b) is provided with a shaping groove (31b) which is adapted to the shape of the first contour (11), and the first lower die (3a) is provided with a shaping punch (31a) which is adapted to the shape of the shaping groove (31b); wherein the shaping punch (31a) can be plugged into the shaping groove (31b) to form a shaping cavity between the two which is adapted to the shape of the cable support ring sleeve in the semi-finished state (1); The second stamping die (4) comprises a second lower die (4a) and a second upper die (4b) which cooperate with each other, the second lower die (4a) comprising a first positioning groove (41a) and a second positioning groove (42a), the first positioning groove (41a) being adapted in shape to the first contour (11), the second positioning groove (42a) being located in the middle of the first positioning groove (41a) and being adapted in shape to the second straight line segment (211) and the transition segment (222), and the second upper die (4b) comprising a stamping punch (41b) wherein, when the cable support ring in the semi-finished state (1) is placed on the first positioning groove (41a), the stamping punch (41b) can abut against the middle of the first straight segment (111) so that the middle of the first straight segment (111) enters the second positioning groove (42a), and at the same time, the first curved portion (112) rotates and abuts against the side end of the stamping punch (41b) to form the second curved portion (223), thereby obtaining the cable support ring in the finished state (2).

2. A cable bracket ring sleeve stamping die and forming method according to claim 1, characterized in that: A first mold positioning portion (32), a first mold separation portion (33) and a first workpiece positioning portion (34) are provided between the first lower mold (3a) and the first upper mold (3b); the first mold positioning portion (32) is used for guiding and positioning the first upper mold (3b) and the first lower mold (3a) during stamping; the first mold separation portion (33) is used for separating the first upper mold (3b) from the first lower mold (3a); and the first workpiece positioning portion (34) is used for positioning the workpiece and the first lower mold (3a).

3. A cable bracket ring sleeve stamping die according to claim 2, characterized in that: The first mold positioning portion (32) comprises a first lower mold guide column (321) arranged on the first lower mold (3a) and a first upper mold guide hole (322) arranged on the first upper mold (3b) and slidingly matched with the first lower mold guide column (321); the first workpiece positioning portion (34) comprises a punch guide column (341) arranged on the shaping punch (31a) and capable of passing through the positioning hole (51) of the workpiece, and a groove guide hole (342) arranged on the shaping groove (31b) and slidingly matched with the punch guide column (341).

4. A cable bracket ring sleeve stamping die according to claim 2, characterized in that: The first mold separation portion (33) comprises a first threaded column (331) threadedly connected to and passing through the bottom end of the first upper mold (3b); the first threaded column (331) can extend out and push the top end of the first lower mold (3a) when rotating, so as to separate the first upper mold (3b) from the first lower mold (3a).

5. A cable bracket ring sleeve stamping die according to claim 1, characterized in that: A second mold positioning portion (42), a second mold separation portion (43) and a second workpiece positioning portion (44) are provided between the second lower mold (4a) and the second upper mold (4b); the second mold positioning portion (42) is used for guiding and positioning the second upper mold (4b) and the second lower mold (4a) during stamping; the second mold separation portion (43) is used for separating the second upper mold (4b) and the second lower mold (4a); and the second workpiece positioning portion (44) is used for positioning the workpiece and the second lower mold (4a).

6. A cable bracket ring sleeve stamping die according to claim 5, characterized in that: The second mold positioning portion (42) comprises a second lower mold guide column (421) arranged on the second lower mold (4a) and a second upper mold guide hole (422) arranged on the second upper mold (4b) and slidingly matched with the second lower mold guide column (421); the second workpiece positioning portion (44) comprises a positioning groove guide column (441) arranged on the second positioning groove (42a) and capable of passing through the positioning hole (51) of the workpiece, and a punch guide hole (442) arranged on the stamping punch (41b) and slidingly matched with the positioning groove guide column (441).

7. A cable bracket ring sleeve stamping die according to claim 5, characterized in that: The second mold separation portion (43) comprises a second threaded column (431) threadedly connected to and passing through the bottom end of the second upper mold (4b), and the second threaded column (431) can extend out and push the top end of the second lower mold (4a) when rotating, so as to separate the second upper mold (4b) and the second lower mold (4a).

8. A cable bracket ring sleeve stamping die according to claim 1, characterized in that: First grooves (45a) are provided on both sides of the punching punch (41b), and second grooves (45b) are provided on both sides of the first positioning groove (41a). When the second lower die (4a) and the second upper die (4b) are matched, a clearance cavity (45) for the first curved portion (112) to rotate is formed between the first groove (45a) and the second groove (45b).

9. A cable bracket ring sleeve stamping die according to claim 1, characterized in that: The punching punch (41b) is columnar and includes a radial positioning surface (411b); when the first curved portion (112) rotates, the second arc segment (114) can abut against the radial positioning surface (411b) to control the size of the opening end (22) of the cable support ring; the opening end (22) of the cable support ring is formed between the second arc segments (114) of the two second curved portions (223).

10. A cable support ring sleeve stamping method, characterized in that: Using the cable bracket ring sleeve stamping die according to any one of claims 1 to 9, the stamping method comprises: Providing a workpiece blank (5), and placing the workpiece blank (5) on a shaping punch (31a) of a first lower die (3a); Controlling and starting the first punching die (3) so that the shaping groove (31b) of the first upper die (3b) and the shaping punch (31a) of the first lower die (3a) are closed, and the workpiece blank (5) is shaped into a semi-finished workpiece having a first contour (11) by the punching force; After the stamping is completed, the first upper die (3b) and the first lower die (3a) are separated by the first separation portion to take out the semi-finished workpiece; Placing the cable support ring sleeve in a semi-finished state (1) in the first positioning groove (41a) of the second lower mold (4a) so that the first contour (11) matches the first positioning groove (41a); Controlling and starting the second stamping die (4) so ​​that the stamping punch (41b) of the second upper die (4b) cooperates with the second lower die (4a) to press the middle portion of the first straight segment (111) downward into the second positioning groove (42a); during the stamping process, the first straight segment (111) of the first contour (11) is deformed to form a second straight segment (211) and a transition segment (222); at the same time, the first curved portion (112) rotates and abuts against the side end of the stamping punch (41b) to form the second curved portion (223), thereby obtaining a finished workpiece having the second contour (21); After the stamping is completed, the second upper die (4b) and the second lower die (4a) are separated by the second die separation portion (43) to remove the finished workpiece.

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