Part locking and limiting mechanism for stamping die

Abstract

The invention provides a part locking and limiting mechanism for a stamping die, and relates to the technical field of stamping dies, the part locking and limiting mechanism comprises a base, and an upper pressing plate is arranged above the base; a material guide frame is arranged on the front side of the top of the base; a driving mechanism is arranged at the bottom of the material guide frame; transmission assemblies are arranged on the left side and the right side of the material guide frame. The guide roller corresponds to the through groove of the guide frame, so that continuous feeding action can be realized; the transmission assembly and the driving mechanism are used in cooperation to relieve limiting and push the metal plate backwards after stamping is completed, the feeding action and the plate clamping action are linked and combined together in sequence through mechanical transmission to be carried out at a time, and the stamping efficiency of equipment is effectively improved; the problems that due to the fact that a metal plate is manually pushed to a stamping part to be limited and clamped, the feeding action and the plate clamping action need to be carried out step by step in a matched mode, the production efficiency of equipment is poor, an unloading component needs to be provided with an extra drive control assembly, and the weight and cost of the equipment are increased are solved.

Description

Technical Field

[0001] The invention relates to the technical field of stamping dies, and in particular to a part locking and limiting mechanism for a stamping die. Background Art

[0002] Stamping dies are special process equipment used to process materials (metal or non-metal) into parts (or semi-finished products) during cold stamping. They are called cold stamping dies (commonly known as cold stamping dies). Stamping is a pressure processing method that uses a die installed on a press to apply pressure to the material at room temperature to separate or plastically deform it, thereby obtaining the desired parts.

[0003] However, as far as the locking and limiting mechanisms of parts used in traditional stamping dies are concerned, most of them require manual pushing of metal sheets to the stamping site for limiting clamping. The continuous stamping process is rather cumbersome and laborious, resulting in the need for the feeding action and the sheet clamping action to be coordinated and performed in steps, resulting in poor production efficiency of the equipment. In addition, the unloading parts need to be equipped with additional drive control components, which are more troublesome to use and increase the weight and cost of the equipment. Summary of the invention

[0004] In view of this, the present invention provides a locking and limiting mechanism for parts of a stamping die, wherein the guide roller thereof corresponds to the through slot of the guide frame, and can realize continuous feeding action; the transmission assembly and the drive mechanism are used in conjunction with each other to release the limit and push the metal sheet backward after the stamping is completed, and the feeding action and the sheet clamping action are linked and combined in sequence through mechanical transmission to be performed at one time, thereby effectively improving the stamping efficiency of the equipment.

[0005] The present invention provides a part locking and limiting mechanism for a stamping die, which specifically includes: a base, an upper pressure plate is provided above the base; a material guide frame is provided on the front side of the top of the base; a driving mechanism is provided at the bottom of the material guide frame; transmission components are provided on the left and right sides of the material guide frame, and the two transmission components are distributed in a symmetrical manner; a support frame is provided at the rear of the transmission component, and a limiting clamp is provided above the support frame; a pushing frame is provided on the left side of the material guide frame, and a sliding frame is provided at the rear end of the pushing frame; a lower mold and a lower cutter are provided on the top of the base, and the lower mold is located at the rear end of the material guide frame, and the lower cutter is located in front of the sliding frame; an upper mold and an upper cutter are provided at the bottom of the upper pressure plate, and the upper mold and the upper cutter correspond to the positions of the lower mold and the lower cutter.

[0006] Optionally, a material discharge chute is provided on the rear side of the top of the base, and the material discharge chute is located behind the lower cutting knife. A collecting box is provided at the rear end of the base, and the collecting box is communicated with the material discharge chute.

[0007] Optionally, a through groove is provided in the middle of the bottom plate of the material guide frame, and limiting grooves are provided on the left and right sides of the material guide frame, and the limiting grooves correspond to the lower mold, and the limiting clamps correspond to the positions of the limiting grooves.

[0008] Optionally, the driving mechanism includes a servo motor, a rotating shaft, a missing gear, a material guide roller, a rotating disk and a cam shaft. The servo motor is fixedly installed on the top of the base, and the servo motor is located on the right side of the material guide frame. The servo motor is provided with a rotating shaft, and the rotating shaft is located below the material guide frame, and the rotating shaft is rotatably connected to the material guide frame through a bearing. Two missing gears are provided on the rotating shaft, and the missing gears correspond to the transmission assembly. A material guide roller is provided on the rotating shaft, and the material guide roller is a three-quarter columnar structure, and the material guide roller matches the missing teeth of the missing gear, and the material guide roller corresponds to the through groove of the material guide frame. A rotating disk is provided at the left end of the rotating shaft, and a cam shaft is provided on the left side of the rotating disk, and the rotating disk corresponds to the pushing frame.

[0009] Optionally, the transmission assembly includes a mounting base and a rack, the mounting base is fixedly mounted on the top of the base, and the support frame is sleeved on the mounting base, a rack is provided on the top of the mounting base, and the rack is distributed in parallel with the mounting base, and the rack is meshed with the missing gear; A plug hole is provided at the middle position of the front end of the mounting base, and a slide groove is provided at the top of the mounting base.

[0010] A slide bar is provided at the bottom of the rack, a pad is provided at the rear end of the rack, and a chamfer is provided at the rear end of the pad. A connecting rod is provided at the front end of the rack, and an insertion rod is provided on the connecting rod. The insertion rod is distributed in parallel with the rack, and a first tension spring is mounted on the insertion rod.

[0011] Optionally, the rack is slidably connected to a slide groove of the mounting base via a slide bar, and the insertion rod is slidably inserted into the insertion hole, and both ends of the first tension spring are respectively connected to the connecting rod and the mounting base.

[0012] Optionally, the support frame is a U-shaped frame structure, and a through hole is opened in the middle position of the top plate of the support frame, two limiting round rods are provided on the top of the support frame, and a second tension spring is mounted on the limiting round rods, the limiting round rods slide through the limiting clamping plate, and the two ends of the second tension spring are respectively connected to the limiting clamping plate and the support frame.

[0013] Optionally, a pressure block is provided on one side of the bottom end of the limiting clamp, and the pressure block contacts the metal plate on the top of the lower mold, a sliding rod is provided at the bottom of the limiting clamp, and a connecting block is provided at the bottom end of the sliding rod, and a chamfer is provided on the front side of the bottom end of the connecting block, the sliding rod slides through the through hole of the support frame, and the connecting block is suspended in the frame of the support frame, the connecting block is located above the mounting base, and the connecting block corresponds to the pad.

[0014] Optionally, a track bar is provided at the front end of the pushing frame, and the track bar is slidably inserted into and matched with the convex shaft of the rotating disk. The sliding sleeve on the pushing frame is provided with two guide sleeves, and the guide sleeves are fixedly installed on the top of the base.

[0015] Optionally, the sliding frame is provided with two mounting blocks, the two mounting blocks are provided with clips on the inner sides thereof, a compression spring is provided between the clips and the mounting blocks, and the clips are in contact with parts at the lower cutting knife.

[0016] Beneficial Effects Compared with the traditional parts locking and limiting mechanism, the parts locking and limiting mechanism for stamping dies according to the embodiments of the present invention has a three-quarter columnar structure, and the material guide roller matches the missing tooth portion of the missing gear, the material guide roller corresponds to the through groove of the material guide frame, and the material guide roller contacts the metal material plate on the material guide frame, so that continuous feeding action can be achieved, which saves the trouble of manually pushing the material forward during the stamping process, simplifies the operating steps of the equipment, and is quick, convenient and labor-saving to use.

[0017] In addition, a pressure block is provided on one side of the bottom end of the limit clamp, and the pressure block contacts the metal plate on the top of the lower mold. Since the position of the limit clamp corresponds to the limit groove, interference with the stamping mold during the stamping process is avoided, and the metal sheet can be effectively limited and clamped.

[0018] In addition, when the pad block is slid into the bottom of the connecting block, the limit clamp can be lifted upward to release the clamping of the metal sheet. The transmission assembly and the drive mechanism can be used together to release the limit and push the metal sheet backward after the stamping is completed. Through mechanical transmission, the feeding action and the sheet clamping action are linked and combined in sequence and performed at one time, eliminating the trouble of step-by-step operation and effectively improving the stamping efficiency of the equipment.

[0019] In addition, since the track bar corresponds to the convex shaft of the rotating disk and is slidably fitted, the pushing frame can drive the sliding frame to slide backward. Through the reciprocating cooperation of the track bar and the rotating disk, the clips on the sliding frame can loosen the finished parts at the lower cutting knife, so that they can smoothly reach the collection box through the discharge chute. The feeding action and the unloading action can share a motor drive, and do not require complex control and drive components, which helps to reduce the weight of the equipment and reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0021] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0022] In the attached picture: Figure 1 A schematic diagram showing the overall structure of a part locking and limiting mechanism for a stamping die according to an embodiment of the present invention; Figure 2 The invention shows a locking and limiting mechanism for a stamping die part according to an embodiment of the present invention. Figure 1Schematic diagram of the resulting rotational perspective; Figure 3 The invention shows a locking and limiting mechanism for a stamping die part according to an embodiment of the present invention. Figure 1 The schematic diagram after the upper pressure plate is removed; Figure 4 The invention shows a locking and limiting mechanism for a stamping die part according to an embodiment of the present invention. Figure 3 The schematic diagram after the base is removed is shown; Figure 5 A schematic diagram showing a material guide frame and a lower die of a part locking and limiting mechanism for a stamping die according to an embodiment of the present invention is shown; Figure 6 A schematic diagram showing a driving mechanism of a part locking and limiting mechanism for a stamping die according to an embodiment of the present invention; Figure 7 A schematic diagram showing an explosion state of a transmission assembly of a part locking and limiting mechanism for a stamping die according to an embodiment of the present invention; Figure 8 A schematic diagram showing an exploded state of a support frame and a limiting clamping plate of a part locking and limiting mechanism for a stamping die according to an embodiment of the present invention; Fig. 9 A schematic diagram of a push frame and a slide frame of a part locking and limiting mechanism for a stamping die according to an embodiment of the present invention is shown.

[0023] Reference numerals list 1. Base; 101. Feed chute; 102. Collecting box; 2. Upper pressing plate; 3. Feed guide rack; 301. Through slot; 302. Limiting slot; 4. Driving mechanism; 401. Servo motor; 402. Rotating shaft; 403. Gear; 404. Feed guide roller; 405. Rotating plate; 406. Protruding shaft; 5. Transmission assembly; 501. Mounting chassis; 5011. Socket; 5012. Slideway; 502. Rack; 5021. Slide; 50 22. Pad; 5023. Insert rod; 5024. First tension spring; 6. Support frame; 601. Through hole; 602. Limiting round rod; 603. Second tension spring; 7. Limiting splint; 701. Pressing block; 702. Sliding rod; 703. Connecting block; 8. Pushing frame; 801. Track bar; 802. Guide sleeve; 9. Sliding frame; 901. Mounting block; 902. Clip; 903. Compression spring; 10. Lower mold; 11. Lower cutting knife. DETAILED DESCRIPTION

[0024] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the usual meanings in the art. The same reference numerals in the drawings represent the same components.

[0025] Example: Please refer to Figures 1 to 9 : The present invention proposes a locking and limiting mechanism for parts of a stamping die, comprising: a base 1, an upper pressing plate 2 is arranged above the base 1; a material guide frame 3 is arranged on the front side of the top of the base 1; a driving mechanism 4 is arranged at the bottom of the material guide frame 3; transmission components 5 are arranged on the left and right sides of the material guide frame 3, and the two transmission components 5 are distributed in a symmetrical manner; a support frame 6 is arranged at the rear of the transmission component 5, and a limiting clamping plate 7 is arranged above the support frame 6; a pushing frame 8 is arranged on the left side of the material guide frame 3, and a sliding frame 9 is arranged at the rear end of the pushing frame 8; a lower mold 10 and a lower cutter 11 are arranged on the top of the base 1, and the lower mold 10 is located at the rear end of the material guide frame 3, and the lower cutter 11 is located in front of the sliding frame 9; an upper mold and an upper cutter are arranged at the bottom of the upper pressing plate 2, and the upper mold and the upper cutter correspond to the positions of the lower mold 10 and the lower cutter 11.

[0026] In addition, according to an embodiment of the present invention, Figures 4 to 6 As shown, a through slot 301 is provided in the middle of the bottom plate of the guide frame 3, and limiting slots 302 are provided on the left and right sides of the guide frame 3, and the limiting slots 302 correspond to the lower mold 10; The driving mechanism 4 includes a servo motor 401, a rotating shaft 402, a missing gear 403, a guide roller 404, a rotating disk 405 and a convex shaft 406. The servo motor 401 is fixedly installed on the top of the base 1, and the servo motor 401 is located on the right side of the guide frame 3. The rotating shaft of the servo motor 401 is provided with a rotating shaft 402, and the rotating shaft 402 is located below the guide frame 3, and the rotating shaft 402 is rotatably connected to the guide frame 3 through a bearing. Two missing gears 403 are provided on the rotating shaft 402, and the missing gears 403 are connected to the transmission Corresponding to component 5, a guide roller 404 is provided on the rotating shaft 402. The device is powered by a servo motor 401, and the rotating shaft 402 is used to drive the guide roller 404 to rotate. Since the guide roller 404 is a three-quarter columnar structure, and the guide roller 404 matches the missing tooth part of the missing gear 403, the guide roller 404 corresponds to the through groove 301 of the guide frame 3, and the guide roller 404 is in contact with the metal plate on the guide frame 3, it can realize continuous feeding action, which saves the trouble of manually pushing the material forward during the stamping process.

[0027] In addition, according to an embodiment of the present invention, Figure 4 and Figure 8As shown, the support frame 6 is a U-shaped frame structure, and a through hole 601 is opened in the middle of the top plate of the support frame 6, two limiting round rods 602 are provided on the top of the support frame 6, and a second tension spring 603 is sleeved on the limiting round rod 602, the limiting round rod 602 slides through the limiting clamping plate 7, and the two ends of the second tension spring 603 are respectively connected to the limiting clamping plate 7 and the support frame 6; A pressure block 701 is provided on one side of the bottom end of the limiting clamp 7, and the pressure block 701 contacts the metal plate on the top of the lower mold 10. Since the position of the limiting clamp 7 corresponds to the position of the limiting groove 302, it avoids interference with the stamping mold during the stamping process and can effectively limit and clamp the metal sheet.

[0028] In addition, according to an embodiment of the present invention, Figures 6 to 8 As shown, the transmission assembly 5 includes a mounting base 501 and a rack 502. The mounting base 501 is fixedly mounted on the top of the base 1, and the support frame 6 is sleeved on the mounting base 501. The top of the mounting base 501 is provided with a rack 502, and the rack 502 is distributed in parallel with the mounting base 501, and the rack 502 is meshed and connected with the missing gear 403; A plug hole 5011 is provided in the middle of the front end of the mounting base 501, and a slide groove 5012 is provided on the top of the mounting base 501; A slide bar 5021 is provided at the bottom of the rack 502, a pad 5022 is provided at the rear end of the rack 502, and a chamfer is provided at the rear end of the pad 5022, a connecting rod is provided at the front end of the rack 502, and an insert rod 5023 is provided on the connecting rod, the insert rod 5023 is distributed in parallel with the rack 502, and a first tension spring 5024 is sleeved on the insert rod 5023; The rack 502 is slidably connected to the slide groove 5012 of the mounting base 501 through the slide bar 5021, and the insertion rod 5023 is slidably inserted into the insertion hole 5011, and the two ends of the first tension spring 5024 are respectively connected to the connecting rod and the mounting base 501; A slide bar 702 is provided at the bottom of the limiting clamp 7, and a connecting block 703 is provided at the bottom end of the slide bar 702, and a chamfer is provided at the front side of the bottom end of the connecting block 703. The slide bar 702 slides through the through hole 601 of the support frame 6, and the connecting block 703 is suspended in the frame of the support frame 6. The connecting block 703 is located above the mounting base 501, and the connecting block 703 corresponds to the cushion block 5022. During the rotation process of the rotating shaft 402 of the present invention, the gear 403 and the rack 502 are used for transmission, so that the rack 502 drives the cushion block 5022 along the slide groove of the mounting base 501. When 5012 slides and the missing gear 403 and the rack 502 are not in a connected state, the elastic action of the first tension spring 5024 is used to drive the rack 502 to slide, so that the pad 5022 returns to its initial position. When the pad 5022 is slidably inserted at the bottom of the connecting block 703, the limiting clamp 7 can be lifted upward to release the clamping of the metal sheet. The transmission assembly 5 and the driving mechanism 4 can be used in conjunction with each other to release the limit and push the metal sheet backward after the stamping is completed. Through mechanical transmission, the feeding action and the sheet clamping action are linked and combined in sequence and performed at one time.

[0029] In addition, according to an embodiment of the present invention, Figure 3 , Figure 6 and Fig. 9 As shown, a material discharge chute 101 is provided at the rear side of the top of the base 1, and the material discharge chute 101 is located behind the lower cutter 11, and a collection box 102 is provided at the rear end of the base 1, and the collection box 102 is communicated with the material discharge chute 101; A rotating disk 405 is provided at the left end of the rotating shaft 402, and a convex shaft 406 is provided on the left side of the rotating disk 405, and the rotating disk 405 corresponds to the pushing frame 8; A track bar 801 is provided at the front end of the push frame 8, and two guide sleeves 802 are provided on the sliding sleeve of the push frame 8, and the guide sleeves 802 are fixedly installed on the top of the base 1; Two mounting blocks 901 are provided on the sliding frame 9, and clips 902 are provided on the inner sides of the two mounting blocks 901 relative to each other, and a compression spring 903 is provided between the clips 902 and the mounting blocks 901, and the clips 902 are in contact with the parts at the lower cutting knife 11. When the rotating shaft 402 drives the rotating disk 405 to rotate, since the track bar 801 corresponds to the convex shaft 406 of the rotating disk 405 and slides in cooperation, the pushing frame 8 can drive the sliding frame 9 to slide backward. Through the reciprocating cooperation between the track bar 801 and the rotating disk 405, the clips 902 on the sliding frame 9 can loosen the finished parts at the lower cutting knife 11, so that they can smoothly reach the collection box 102 through the discharge chute 101, wherein the feeding action and the unloading action can share a motor drive, and do not require complex control and drive components, which helps to reduce the weight of the equipment and reduce costs.

[0030] Specific usage and function of this embodiment: In the present invention, the servo motor 401 provides power, and the rotating shaft 402 is used to drive the guide roller 404 to rotate. Since the guide roller 404 is a three-quarter columnar structure, and the guide roller 404 matches the missing tooth part of the missing gear 403, the guide roller 404 corresponds to the through groove 301 of the guide frame 3, and the guide roller 404 contacts the metal plate on the guide frame 3, so that continuous feeding action can be achieved; a pressure block 701 is provided on one side of the bottom end of the limiting clamp 7, and the pressure block 701 contacts the metal plate on the top of the lower mold 10, so that the metal sheet can be effectively limited and clamped during the stamping process; during the rotation process of the rotating shaft 402 of the present invention, the missing gear 403 and the rack 502 are used for transmission, so that the rack 502 drives the pad 5022 to slide along the slide groove 5012 of the mounting base 501, and the missing gear 403 and the rack When 502 is not in a connected state, the elastic action of the first tension spring 5024 is used to drive the rack 502 to slide, so that the pad 5022 returns to its initial position. When the pad 5022 is slidably inserted at the bottom of the connecting block 703, the limit clamp 7 can be lifted upward, thereby releasing the clamping of the metal sheet. The transmission assembly 5 and the driving mechanism 4 can be used in conjunction with each other to release the limit and push the metal sheet backward after the stamping is completed; when the rotating shaft 402 drives the rotating disk 405 to rotate, due to the sliding insertion cooperation of the track bar 801 corresponding to the convex shaft 406 of the rotating disk 405, the pushing frame 8 can drive the sliding frame 9 to slide backward. Through the reciprocating cooperation of the track bar 801 and the rotating disk 405, the clip 902 on the sliding frame 9 can loosen the finished parts at the lower cutting knife 11, so that it can smoothly reach the collection box 102 through the discharge chute 101, thereby completing the continuous stamping process.

[0031] Finally, it should be noted that when describing the position of each component and the matching relationship between them, the present invention usually takes one / a pair of components as an example. However, those skilled in the art should understand that such position, matching relationship, etc. are also applicable to other components / other pairs of components.

[0032] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. A locking and limiting mechanism for parts of a stamping die, characterized in that: A part locking and limiting mechanism for a stamping die comprises: a base (1), wherein an upper pressing plate (2) is provided above the base (1); a guide frame (3) is provided at the front side of the top of the base (1); a driving mechanism (4) is provided at the bottom of the guide frame (3); transmission components (5) are provided on the left and right sides of the guide frame (3), and the two transmission components (5) are symmetrically distributed; a support frame (6) is provided at the rear of the transmission component (5), and a limiting clamping plate (7) is provided above the support frame (6); a pushing frame (8) is provided on the left side of the guide frame (3), and a sliding frame (9) is provided at the rear end of the pushing frame (8); a lower die (10) and a lower cutter (11) are provided at the top of the base (1), and the lower die (10) is located at the rear end of the guide frame (3), and the lower cutter (11) is located in front of the sliding frame (9); an upper die and an upper cutter are provided at the bottom of the upper pressing plate (2), and the upper die and the upper cutter correspond to the positions of the lower die (10) and the lower cutter (11).

2. The part locking and limiting mechanism for a stamping die according to claim 1, characterized in that: A material discharge chute (101) is provided at the rear side of the top of the base (1), and the material discharge chute (101) is located behind the lower cutter (11). A collection box (102) is provided at the rear end of the base (1), and the collection box (102) is communicated with the material discharge chute (101).

3. The part locking and limiting mechanism for a stamping die according to claim 1, characterized in that: A through slot (301) is provided in the middle of the bottom plate of the material guide rack (3), and limiting slots (302) are provided on the left and right sides of the material guide rack (3), the limiting slots (302) correspond to the lower mold (10), and the limiting clamping plates (7) correspond to the limiting slots (302).

4. The part locking and limiting mechanism for a stamping die according to claim 1, characterized in that: The driving mechanism (4) comprises a servo motor (401), a rotating shaft (402), a missing gear (403), a material guide roller (404), a rotating disk (405) and a convex shaft (406), wherein the servo motor (401) is fixedly mounted on the top of the base (1), and the servo motor (401) is located on the right side of the material guide frame (3), a rotating shaft (402) is provided on the rotating shaft of the servo motor (401), and the rotating shaft (402) is located below the material guide frame (3), and the rotating shaft (402) is connected to the material guide frame (3) via a bearing. The rotating shaft (402) is provided with two missing gears (403), and the missing gears (403) correspond to the transmission assembly (5); the rotating shaft (401) is provided with a material guide roller (404), the material guide roller (404) is a three-quarter columnar structure, and the material guide roller (404) matches the missing teeth of the missing gear (403); the left end of the rotating shaft (401) is provided with a rotating disk (405), and the left side of the rotating disk (405) is provided with a convex shaft (406), and the rotating disk (405) corresponds to the pushing frame (8).

5. The part locking and limiting mechanism for a stamping die as claimed in claim 4, characterized in that: The transmission assembly (5) comprises a mounting base (501) and a rack (502), wherein the mounting base (501) is fixedly mounted on the top of the base (1), and the support frame (6) is sleeved on the mounting base (501), and a rack (502) is provided on the top of the mounting base (501), and the rack (502) and the mounting base (501) are arranged in parallel, and the rack (502) is meshedly connected with the missing gear (403); A plug hole (5011) is provided in the middle of the front end of the mounting base (501), and a slide groove (5012) is provided at the top of the mounting base (501); A sliding bar (5021) is provided at the bottom of the rack (502), a cushion block (5022) is provided at the rear end of the rack (502), and a chamfer is provided at the rear end of the cushion block (5022), a connecting rod is provided at the front end of the rack (502), and an insertion rod (5023) is provided on the connecting rod, the insertion rod (5023) and the rack (502) are distributed in parallel, and a first tension spring (5024) is sleeved on the insertion rod (5023).

6. The part locking and limiting mechanism for a stamping die as claimed in claim 5, characterized in that: The rack (502) is slidably connected to the slide groove (5012) of the mounting base (501) via a slide bar (5021), and the insertion rod (5023) is slidably inserted into the insertion hole (5011), and the two ends of the first tension spring (5024) are respectively connected to the connecting rod and the mounting base (501).

7. The part locking and limiting mechanism for a stamping die as claimed in claim 5, characterized in that: The support frame (6) is a U-shaped frame structure, and a through hole (601) is opened in the middle of the top plate of the support frame (6). Two limiting round rods (602) are provided on the top of the support frame (6), and a second tension spring (603) is sleeved on the limiting round rod (602). The limiting round rod (602) slides through the limiting clamping plate (7), and the two ends of the second tension spring (603) are respectively connected to the limiting clamping plate (7) and the support frame (6).

8. The part locking and limiting mechanism for a stamping die as claimed in claim 7, characterized in that: A pressure block (701) is provided on one side of the bottom end of the limiting clamp (7), and the pressure block (701) contacts the metal plate on the top of the lower mold (10); a sliding rod (702) is provided at the bottom of the limiting clamp (7), and a connecting block (703) is provided at the bottom end of the sliding rod (702), and a chamfer is provided on the front side of the bottom end of the connecting block (703); the sliding rod (702) slides through the through hole (601) of the support frame (6), and the connecting block (703) is suspended in the frame of the support frame (6); the connecting block (703) is located above the mounting base (501), and the connecting block (703) corresponds to the cushion block (5022).

9. The part locking and limiting mechanism for a stamping die as claimed in claim 4, characterized in that: The front end of the push frame (8) is provided with a track bar (801), and the track bar (502) is slidably inserted into and matched with the convex shaft (406) of the rotating disk (405). The push frame (8) is slidably sleeved with two guide sleeves (802), and the guide sleeves (802) are fixedly installed on the top of the base (1).

10. The part locking and limiting mechanism for a stamping die according to claim 1, characterized in that: The sliding frame (9) is provided with two mounting blocks (901), the two mounting blocks (901) are provided with clips (902) on the inner sides thereof, a compression spring (903) is provided between the clips (902) and the mounting blocks (901), and the clips (902) are in contact with parts at the lower cutting knife (11).

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