High-precision metal bending part preparation mold
By combining molds for three bending and shaping processes, the problems of scratches, pits, and precision during the 90° bending of metal parts were solved, enabling the production of high-precision metal bent parts.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAMEN YONGXIANGYU TECH CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-26
AI Technical Summary
Existing metal parts are prone to scratches and pits during 90° bending, and inconsistent material thickness makes it difficult to meet high precision requirements.
The material is bent sequentially using 45° bending dies, 80° bending dies, and 90° bending dies, combined with bending and shaping dies and upsetting and shaping dies. Through three bending and shaping processes, the material avoids the damage caused by direct 45°-90° bending and ensures that the material enters the die cavity before the punch contacts the die.
It enables the production of high-precision metal bending parts, avoids surface scratches on metal, and ensures bending accuracy and consistency.
Smart Images
Figure CN224272968U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bending die technology, specifically relating to a high-precision metal bending part preparation die. Background Technology
[0002] Existing metal part bending processes typically involve a 90° angle and are usually performed in two steps. Because metal materials have inherent tensile strength, the bending die applies a bending force during the 90° bending process. This force exerts a compressive effect on the metal, creating noticeable scratches or pits on the surface, especially when the material is thick and the bending height is ≤2t (t is the material thickness). Furthermore, the material thickness varies from batch to batch. Therefore, conventional bending methods are insufficient to meet high-precision requirements for the thickness and bending height of the bent portion. This solution was developed to address these high-precision bending requirements. Utility Model Content
[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a high-precision metal bending part preparation mold, which can produce high-precision metal bending parts.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a high-precision metal bending part preparation mold, including a 45° bending mold, an 80° bending mold, a 90° bending mold, a bending and shaping mold, and an upsetting and shaping mold. The 45° bending mold, 80° bending mold, 90° bending mold, bending and shaping mold, and upsetting and shaping mold are arranged sequentially from left to right. The 45° bending mold, 80° bending mold, and 90° bending mold sequentially bend the raw material at 45°, 80°, and 90°. The bending and shaping mold shapes the bent raw material. The upsetting and shaping mold upsetting and shaping the bent and shaped raw material.
[0005] Furthermore, the 45° bending die includes a first upper die assembly and a first lower die assembly. The first upper die assembly includes a first upper die base and a first bending punch, with the first bending punch disposed on the lower surface of the first upper die base.
[0006] The first lower die assembly includes a first lower die base and a first concave die plate. The first concave die plate is disposed on the upper surface of the first lower die base. A first bending die is disposed on the first concave die plate. The first bending punch and the first bending die are adapted to each other. First abutments are formed on both sides of the lower surface of the first bending punch.
[0007] Furthermore, the first upper module also includes a first upper pad, a first fixing plate, a first height limiting plate and a first unloading plate. The first upper mold base, the first upper pad, the first fixing plate, the first height limiting plate and the first unloading plate are arranged sequentially from top to bottom. The first bending punch is arranged inside the first fixing plate, the first height limiting plate and the first unloading plate and extends out of the lower surface of the first unloading plate.
[0008] The first lower mold assembly also includes a first lower pad, which is located between the first lower mold base and the first concave mold plate.
[0009] Furthermore, the 80° bending die includes a second upper die assembly and a second lower die assembly. The second upper die assembly includes a second upper die base and a second bending punch. The second bending punch is disposed on the lower surface of the second upper die base.
[0010] The second lower die assembly includes a second lower die base and a second concave die plate. The second concave die plate is disposed on the upper surface of the second lower die base. A second bending die is disposed on the second concave die plate. The second bending punch and the second bending die are adapted to each other. Second abutments are formed on both sides of the lower surface of the second bending punch.
[0011] Furthermore, the second upper module also includes a second upper pad, a second fixing plate, a second height limiting plate, and a second unloading plate. The second upper mold base, the second upper pad, the second fixing plate, the second height limiting plate, and the second unloading plate are arranged sequentially from top to bottom. The second bending punch is disposed inside the second fixing plate, the second height limiting plate, and the second unloading plate and extends out of the lower surface of the second unloading plate.
[0012] The second lower mold assembly also includes a second lower pad, which is located between the second lower mold base and the second concave mold plate.
[0013] Furthermore, the 80° bending die includes a third upper die assembly and a third lower die assembly. The third upper die assembly includes a third upper die base and a third bending punch, with the third bending punch disposed on the lower surface of the third upper die base.
[0014] The third lower module includes a third lower die base and a third concave die plate. The third concave die plate is disposed on the upper surface of the third lower die base. A third bending die is disposed on the third concave die plate. The third bending punch and the third bending die are adapted to each other. Third abutments are formed on both sides of the lower surface of the third bending punch.
[0015] Furthermore, the third upper module also includes a third upper pad, a third fixing plate, a third height limiting plate, and a third unloading plate. The third upper mold base, the third upper pad, the third fixing plate, the third height limiting plate, and the third unloading plate are arranged sequentially from top to bottom. The third bending punch is arranged inside the third fixing plate, the third height limiting plate, and the third unloading plate and extends out of the lower surface of the third unloading plate.
[0016] The third lower module also includes a third lower pad, which is located between the third lower mold base and the third concave mold plate.
[0017] Furthermore, a corner-clearing arc plate is provided at the corner of the first bending die.
[0018] Furthermore, the bending and shaping die includes a fourth upper die assembly and a fourth lower die assembly. The fourth upper die assembly includes a fourth upper die base, a fourth upper pad, a fourth fixing plate, a fourth height limiting plate, and a fourth unloading plate. The fourth upper die base, the fourth upper pad, the fourth fixing plate, the fourth height limiting plate, and the fourth unloading plate are arranged sequentially from top to bottom. The fourth fixing plate, the fourth height limiting plate, and the fourth unloading plate form two through-holes. The two fixing holes are arranged opposite to each other, and an adjusting punch is installed in the two fixing holes.
[0019] The fourth lower module includes a fourth lower mold base, a fourth lower pad, and a fourth concave mold plate. The fourth lower mold base, the fourth lower pad, and the fourth concave mold plate are arranged sequentially from bottom to top. A shaping die is provided on the fourth concave mold plate. Two shaping sliders are provided above the shaping die. The two adjusting punches extend from both sides of the shaping die and push the two shaping sliders to move closer to each other.
[0020] Furthermore, the upsetting and shaping mold includes a fifth upper mold assembly and a fifth lower mold assembly. The fifth upper mold assembly includes a fifth upper mold base, a fifth upper pad, a fifth fixing plate, a fifth height limiting plate, and a fifth unloading plate. The fifth upper mold base, the fifth upper pad, the fifth fixing plate, the fifth height limiting plate, and the fifth unloading plate are arranged sequentially from top to bottom. An upsetting unloading plate insert is provided on the fifth unloading plate.
[0021] The fifth lower module includes a fifth lower die base, a fifth lower pad, and a fifth concave die plate. The fifth lower die base, the fifth lower pad, and the fifth concave die plate are arranged sequentially from bottom to top. An extrusion die insert is provided on the fifth concave die plate. The extrusion unloading plate insert and the extrusion die insert are compatible.
[0022] Compared with the prior art, the present invention has the following beneficial effects:
[0023] 1. This utility model uses a 45° bending die, an 80° bending die, and a 90° bending die to sequentially bend the raw material at 45°, 80°, and 90°, changing the traditional two-bending process to three-bending process. This avoids the significant scratches on the metal material surface caused by the traditional direct bending from 45° to 90°. After bending, the product is shaped by a bending forming die, and finally, the product is pressed by an upsetting forming die to form a high-precision product.
[0024] 2. A first stop, a second stop, and a third stop are provided on both sides of the lower surface of the first bending punch of the 45° bending die, on both sides of the lower surface of the second bending punch of the 80° bending die, and on both sides of the lower surface of the third bending punch of the 90° bending die. This ensures that the raw material has already entered the first bending die, the second bending die, or the third bending die before it comes into contact with the raw material. This avoids the punch being subjected to horizontal lateral force (in the opposite direction of bending) during the bending process, which would affect the bending accuracy. Attached Figure Description
[0025] Figure 1 This is a top view of the structure of this utility model;
[0026] Figure 2 This is a cross-sectional view of the 45° bending die in this utility model.
[0027] Figure 3 This utility model Figure 2 A magnified schematic diagram of the local structure at point A;
[0028] Figure 4 This is a cross-sectional view of the 80° bending die in this utility model.
[0029] Figure 5 This utility model Figure 4 A magnified view of the structure at point B in the middle;
[0030] Figure 6 This is a cross-sectional view of the 90° bending die in this utility model.
[0031] Figure 7 This utility model Figure 6 A magnified schematic diagram of the local structure at point A;
[0032] Figure 8 This is a cross-sectional view of the bending and shaping mold in this utility model.
[0033] Figure 9 This is a cross-sectional structural diagram of the forming die for extrusion in this utility model.
[0034] Markings in the diagram: 1. 45° bending die; 11. First upper die assembly; 111. First upper die base; 112. First upper pad; 113. First fixing plate; 114. First height limiting plate; 115. First stripper plate; 116. First bending punch; 1161. First stop; 12. First lower die assembly; 121. First lower die base; 122. First lower pad; 123. First concave die; 124. First bending concave die; 2. 80° bending die; 21. Second upper die assembly; 211. Second upper die base; 212. Second upper pad. 213. Second fixing plate; 214. Second height limiting plate; 215. Second unloading plate; 216. Second bending punch; 2161. Second stop; 22. Second lower die assembly; 221. Second lower die base; 222. Second lower pad plate; 223. Second concave die plate; 224. Second bending concave die; 3. 90-degree bending die; 31. Third upper die assembly; 311. Third upper die base; 312. Third upper pad plate; 313. Third fixing plate; 314. Third height limiting plate; 315. Third unloading plate; 316. Third bending punch; 3 161. Third stop; 32. Third lower die assembly; 321. Third lower die base; 322. Third lower backing plate; 323. Third concave die plate; 324. Third bending die; 4. Bending and shaping die; 41. Fourth upper die assembly; 411. Fourth upper die base; 412. Fourth upper backing plate; 413. Fourth fixing plate; 414. Fourth height limiting plate; 415. Fourth stripper plate; 416. Adjusting punch; 42. Fourth lower die assembly; 421. Fourth lower die base; 422. Fourth lower backing plate; 423. Fourth concave die plate; 424. Shaping die ; 4241, Fixed base; 4242, convex seat; 4243, Return spring; 425, Shaping slider; 426, Stop block; 5, Upsetting and shaping mold; 51, Fifth upper mold assembly; 511, Fifth upper mold base; 512, Fifth upper pad; 513, Fifth fixing plate; 514, Fifth height limit plate; 515, Fifth unloading plate; 516, Upsetting and unloading plate insert; 52, Fifth lower mold assembly; 521, Fifth lower mold base; 522, Fifth lower pad; 523, Fifth concave mold plate; 524, Upsetting and concave mold insert; 6, Corner clearing arc plate. Detailed Implementation
[0035] To make the above-mentioned features and advantages of this utility model more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings for detailed explanation.
[0036] like Figures 1-9 As shown, this embodiment provides a high-precision metal bending part preparation mold, including a 45° bending mold 1, an 80° bending mold 2, a 90° bending mold 3, a bending and shaping mold 4, and an upsetting and shaping mold 5, which are arranged from left to right.
[0037] The 45° bending die 1 bends the raw material at a 45° angle. The 45° bending die 1 includes a first upper die 11 and a first lower die 12.
[0038] The first upper module 11 includes a first upper mold base 111, a first upper pad 112, a first fixing plate 113, a first height limiting plate 114, and a first unloading plate 115. The first upper mold base 111, the first upper pad 112, the first fixing plate 113, the first height limiting plate 114, and the first unloading plate 115 are arranged sequentially from top to bottom. The first bending punch 116 is disposed inside the first fixing plate 113, the first height limiting plate 114, and the first unloading plate 115 and extends out of the lower surface of the first unloading plate 115.
[0039] The first lower die assembly 12 includes a first lower die base 121, a first lower pad 122, and a first concave die 123. The first lower pad 122 is located between the first lower die base 121 and the first concave die 123. The first concave die 123 is disposed on the upper surface of the first lower die base 121. A first bending die 124 is disposed on the first concave die 123. A first bending punch 116 is adapted to the first bending die 124. A first stop 1161 is formed on both sides of the lower surface of the first bending punch 116 to ensure that the raw material has entered the first bending die 124 before the first bending punch 116 contacts the raw material, thereby avoiding the punch being subjected to horizontal lateral force (in the opposite direction of bending) during the bending process, which would affect the bending accuracy.
[0040] Preferably, a corner clearing arc plate 6 is provided at the corner of the first bending die 124. During the bending process, the inner material is squeezed and the outer material is stretched. Therefore, the corner clearing arc plate 6 on the first bending die 124 avoids the material protrusion caused by material squeezing from affecting the size of the part.
[0041] Working principle: After the raw material enters the mold, the machine travels down a certain distance. The first unloading plate 115 and the first concave die 123 position and clamp the raw material. The machine continues its downward stroke, and the first bending punch 116 descends. Due to the presence of the first stop 1161, the raw material is already inside the first bending die 124 before the first bending punch 116 contacts the raw material. This avoids the first bending punch 116 being subjected to horizontal lateral force (in the opposite direction of bending) during the bending process, thus preventing it from affecting the bending accuracy. After continuing to descend, the first bending punch 116 pushes the raw material to complete a 45° bend.
[0042] The 80° bending die 2 bends the raw material at an 80° angle; the 80° bending die 2 includes a second upper die 21 and a second lower die 22.
[0043] The second upper module 21 includes a second upper mold base 211, a second upper pad 212, a second fixing plate 213, a second height limiting plate 214, and a second unloading plate 215. The second upper mold base 211, the second upper pad 212, the second fixing plate 213, the second height limiting plate 214, and the second unloading plate 215 are arranged sequentially from top to bottom. The second bending punch 216 is disposed inside the second fixing plate 213, the second height limiting plate 214, and the second unloading plate 215 and extends out of the lower surface of the second unloading plate 215.
[0044] The second lower die assembly 22 includes a second lower die base 221, a second lower pad 222, and a second concave die 223. The second lower pad 222 is located between the second lower die base 221 and the second concave die 223. The second concave die 223 is disposed on the upper surface of the second lower die base 221. A second bending die 224 is disposed on the second concave die 223. A second bending punch 216 is adapted to the second bending die 224. Second abutments 2161 are formed on both sides of the lower surface of the second bending punch 216 to ensure that the raw material has entered the second bending die 224 before the second bending punch 216 contacts the raw material, thus avoiding the punch being subjected to horizontal lateral force (in the opposite direction of bending) during the bending process, which would affect the bending accuracy.
[0045] Working principle: After the part from the previous process enters this process, the machine travels down a certain distance, and the second unloading plate 215 and the second concave die 223 position and clamp the raw material. The machine continues its downward stroke, and the second bending punch 216 descends. Due to the presence of the second stop 2161, the raw material is already inside the second bending die 224 before the second bending punch 216 contacts it, avoiding the second bending punch 216 being subjected to horizontal lateral force (in the opposite direction of bending) during the bending process, which would affect the bending accuracy. After continuing to descend, the second bending punch 216 pushes the raw material to complete an 80° bend.
[0046] The 90° bending die bends the raw material at a 90° angle; the 90° bending die includes a third upper die 31 and a third lower die 32.
[0047] The third upper module 31 includes a third upper mold base 311, a third upper pad 312, a third fixing plate 313, a third height limiting plate 314, and a third unloading plate 315. The third upper mold base 311, the third upper pad 312, the third fixing plate 313, the third height limiting plate 314, and the third unloading plate 315 are arranged sequentially from top to bottom. The third bending punch 316 is arranged inside the third fixing plate 313, the third height limiting plate 314, and the third unloading plate 315 and extends out of the lower surface of the third unloading plate 315.
[0048] The third lower module 32 includes a third lower die base 321, a third lower pad 322, and a third concave die 323. The third lower pad 322 is located between the third lower die base 321 and the third concave die 323. The third concave die 323 is disposed on the upper surface of the third lower die base 321. A third bending die 324 is disposed on the third concave die 323. The third bending punch 316 and the third bending die 324 are adapted to each other. Third abutments 3161 are formed on both sides of the lower surface of the third bending punch 316 to ensure that the raw material has entered the third bending die 324 before the third bending punch 316 contacts the raw material, thus avoiding the punch being subjected to horizontal lateral force (in the opposite direction of bending) during the bending process, which would affect the bending accuracy.
[0049] Working principle: After the part from the previous process enters this process, the machine travels down a certain distance, and the third unloading plate 315 and the third concave die 323 position and clamp the raw material. The machine continues its downward stroke, and the third bending punch 316 descends. Due to the presence of the third stop 3161, the raw material is already inside the third bending die 324 before the third bending punch 316 contacts the raw material, avoiding the third bending punch 316 being subjected to horizontal lateral force (in the opposite direction of bending) during the bending process, thus preventing it from affecting the bending accuracy. After continuing to descend, the third bending punch 316 pushes the raw material to complete a 90° bend.
[0050] The bending and shaping die 4 shapes the bent raw material; the bending and shaping die 4 includes a fourth upper die 41 and a fourth lower die 42.
[0051] The fourth upper module 41 includes a fourth upper mold base 411, a fourth upper pad 412, a fourth fixing plate 413, a fourth height limiting plate 414, and a fourth unloading plate 415. The fourth upper mold base 411, the fourth upper pad 412, the fourth fixing plate 413, the fourth height limiting plate 414, and the fourth unloading plate 415 are arranged sequentially from top to bottom. An unloading plate insert is provided in the middle of the fourth unloading plate 415. The fourth fixing plate 413, the fourth height limiting plate 414, and the fourth unloading plate 415 form two through-holes. The two fixing holes are arranged opposite each other, and an adjusting punch 416 is installed in the two fixing holes.
[0052] Preferably, mounting grooves are formed on both sides of the fourth upper pad 412, and an adjusting rod is provided in the mounting groove. The position of the adjusting rod and the adjusting punch 416 are connected by an adjusting block.
[0053] The fourth lower mold assembly 42 includes a fourth lower mold base 421, a fourth lower pad 422, and a fourth concave mold plate 423. The fourth lower mold base 421, the fourth lower pad 422, and the fourth concave mold plate 423 are arranged sequentially from bottom to top. A shaping die 424 is provided on the fourth concave mold plate 423. Two shaping sliders 425 are provided on the upper surface of the shaping die 424. The shaping die 424 and the lower pad are connected by a shaping die 424 insert. The shaping die 424 includes a fixed base 4241 and a boss 4242. The boss 4242 is located on the upper surface of the fixed base 4241. Grooves are formed on the two side walls of the boss 4242. A return spring 4243 is installed in the groove. Two adjusting punches 416 extend from both sides of the shaping die 424 and push the two shaping sliders 425 to move closer to each other.
[0054] Preferably, a stop 426 is provided between the fourth concave template 423 and the shaping concave template 424.
[0055] Working principle: After the part from the previous process enters this process, the machine travels down a certain distance, and the fourth unloading plate 415 and the fourth die plate 423 position and clamp the raw material. The machine continues its downward stroke, adjusting the punch 416 downward. The inclined surface of the punch 416 interacts with the forming slider 425, pushing the forming slider 425 towards the part. Because the forming die 424 and the forming slider 425 have a negative forming angle, the part is formed to the required size under the pushing and pressing of both. Then the machine moves upward, adjusting the punch 416 upward, and the forming slider 425 returns to its original position under the action of the return spring 4243, completing one stamping cycle.
[0056] The upsetting and forming die 5 performs upsetting and forming on the bent and formed raw material. The upsetting and forming die 5 includes a fifth upper die group 51 and a fifth lower die group 52. The fifth upper die group 51 includes a fifth upper die base 511, a fifth upper pad 512, a fifth fixing plate 513, a fifth height limiting plate 514 and a fifth unloading plate 515. The fifth upper die base 511, the fifth upper pad 512, the fifth fixing plate 513, the fifth height limiting plate 514 and the fifth unloading plate 515 are arranged sequentially from top to bottom. An upsetting and unloading plate insert 516 is provided on the fifth unloading plate 515.
[0057] The fifth lower mold assembly 52 includes a fifth lower mold base 521, a fifth lower pad 522, and a fifth concave mold plate 523. The fifth lower mold base 521, the fifth lower pad 522, and the fifth concave mold plate 523 are arranged sequentially from bottom to top. An extrusion die insert 524 is provided on the fifth concave mold plate 523. The extrusion unloading plate insert 516 is compatible with the extrusion die insert 524.
[0058] Working principle: After the part from the previous process enters this process, the machine moves downwards, and the inserts of the upsetting unloading plate 516 and the upsetting die insert 524 completely enclose the part for upsetting and shaping, and the part is completed.
[0059] The foregoing has shown and described the basic principles and main features of this invention, as well as its advantages. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications may be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.
Claims
1. A high-precision metal bending part manufacturing mold, characterized in that: The assembly includes a 45° bending die, an 80° bending die, a 90° bending die, a bending and shaping die, and an upsetting and shaping die. These dies are arranged sequentially from left to right. The 45° bending die, 80° bending die, 90° bending die, bending and shaping die, and upsetting and shaping die sequentially bend the raw material at 45°, 80°, and 90°. The bending and shaping die shapes the bent raw material, and the upsetting and shaping die upsetting and shaping the bent and shaped raw material.
2. The high-precision metal bending part manufacturing mold according to claim 1, characterized in that: The 45° bending die includes a first upper die assembly and a first lower die assembly. The first upper die assembly includes a first upper die base and a first bending punch, with the first bending punch disposed on the lower surface of the first upper die base. The first lower die assembly includes a first lower die base and a first concave die plate. The first concave die plate is disposed on the upper surface of the first lower die base. A first bending die is disposed on the first concave die plate. The first bending punch and the first bending die are adapted to each other. First abutments are formed on both sides of the lower surface of the first bending punch.
3. The high-precision metal bending part manufacturing mold according to claim 2, characterized in that: The first upper module also includes a first upper pad, a first fixing plate, a first height limiting plate and a first unloading plate. The first upper mold base, the first upper pad, the first fixing plate, the first height limiting plate and the first unloading plate are arranged in order from top to bottom. The first bending punch is arranged inside the first fixing plate, the first height limiting plate and the first unloading plate and extends out of the lower surface of the first unloading plate. The first lower mold assembly also includes a first lower pad, which is located between the first lower mold base and the first concave mold plate.
4. The high-precision metal bending part manufacturing mold according to claim 2, characterized in that: The 80° bending die includes a second upper die assembly and a second lower die assembly. The second upper die assembly includes a second upper die base and a second bending punch. The second bending punch is disposed on the lower surface of the second upper die base. The second lower die assembly includes a second lower die base and a second concave die plate. The second concave die plate is disposed on the upper surface of the second lower die base. A second bending die is disposed on the second concave die plate. The second bending punch and the second bending die are adapted to each other. Second abutments are formed on both sides of the lower surface of the second bending punch.
5. A high-precision metal bending part manufacturing mold according to claim 4, characterized in that: The second upper module also includes a second upper pad, a second fixing plate, a second height limiting plate, and a second unloading plate. The second upper mold base, the second upper pad, the second fixing plate, the second height limiting plate, and the second unloading plate are arranged sequentially from top to bottom. The second bending punch is arranged inside the second fixing plate, the second height limiting plate, and the second unloading plate and extends out of the lower surface of the second unloading plate. The second lower mold assembly also includes a second lower pad, which is located between the second lower mold base and the second concave mold plate.
6. The high-precision metal bending part manufacturing mold according to claim 1, characterized in that: The 80° bending die includes a third upper die assembly and a third lower die assembly. The third upper die assembly includes a third upper die base and a third bending punch. The third bending punch is disposed on the lower surface of the third upper die base. The third lower module includes a third lower die base and a third concave die plate. The third concave die plate is disposed on the upper surface of the third lower die base. A third bending die is disposed on the third concave die plate. The third bending punch and the third bending die are adapted to each other. Third abutments are formed on both sides of the lower surface of the third bending punch.
7. A high-precision metal bending part manufacturing mold according to claim 6, characterized in that: The third upper module also includes a third upper pad, a third fixing plate, a third height limiting plate and a third unloading plate. The third upper mold base, the third upper pad, the third fixing plate, the third height limiting plate and the third unloading plate are arranged in order from top to bottom. The third bending punch is arranged inside the third fixing plate, the third height limiting plate and the third unloading plate and extends out of the lower surface of the third unloading plate. The third lower module also includes a third lower pad, which is located between the third lower mold base and the third concave mold plate.
8. A high-precision metal bending part manufacturing mold according to claim 2 or 4, characterized in that: A corner clearing arc plate is provided at the corner of the first bending die.
9. A high-precision metal bending part manufacturing mold according to claim 1, characterized in that: The bending and shaping mold includes a fourth upper mold assembly and a fourth lower mold assembly. The fourth upper mold assembly includes a fourth upper mold base, a fourth upper pad, a fourth fixing plate, a fourth height limiting plate, and a fourth unloading plate. The fourth upper mold base, the fourth upper pad, the fourth fixing plate, the fourth height limiting plate, and the fourth unloading plate are arranged sequentially from top to bottom. The fourth fixing plate, the fourth height limiting plate, and the fourth unloading plate form two through-holes. The two fixing holes are arranged opposite to each other, and an adjusting punch is installed in the two fixing holes. The fourth lower module includes a fourth lower mold base, a fourth lower pad, and a fourth concave mold plate. The fourth lower mold base, the fourth lower pad, and the fourth concave mold plate are arranged sequentially from bottom to top. A shaping die is provided on the fourth concave mold plate. Two shaping sliders are provided above the shaping die. The two adjusting punches extend from both sides of the shaping die and push the two shaping sliders to move closer to each other.
10. A high-precision metal bending part manufacturing mold according to claim 1, characterized in that: The upsetting and shaping mold includes a fifth upper mold assembly and a fifth lower mold assembly. The fifth upper mold assembly includes a fifth upper mold base, a fifth upper pad, a fifth fixing plate, a fifth height limiting plate, and a fifth unloading plate. The fifth upper mold base, the fifth upper pad, the fifth fixing plate, the fifth height limiting plate, and the fifth unloading plate are arranged sequentially from top to bottom. An upsetting unloading plate insert is provided on the fifth unloading plate. The fifth lower module includes a fifth lower die base, a fifth lower pad, and a fifth concave die plate. The fifth lower die base, the fifth lower pad, and the fifth concave die plate are arranged sequentially from bottom to top. An extrusion die insert is provided on the fifth concave die plate. The extrusion unloading plate insert and the extrusion die insert are compatible.