Punch protection structure of stamping die

Abstract

The utility model relates to the technical field of punch protection structures, and discloses a stamping die punch protection structure which comprises an insert A and an insert B arranged on one side of the insert A. A plurality of guide grooves are formed between the insert A and the insert B at equal intervals, and punch parts are arranged in inner cavities of the guide grooves respectively. The technology is suitable for a cutting die in the stamping field, in particular to a die with a punch for blanking, the insert A and the insert B are used for carrying out double guide protection on the punch, so that the problem of fracture of the punch in the die closing and blanking process is solved, the insert A and the insert B are additionally arranged for guiding and limiting the punch and the straight body section of the punch, and the service life of the punch is prolonged. By means of the structure, it can be guaranteed that the punch smoothly passes through the insert during die assembly, in the blanking process, force borne by the punch can be concentrated in the blanking direction of the punch as much as possible, breakage is avoided, and the stability of the punch on the insert A and the insert B can be improved through the arrangement of the fastening plate A and the fastening plate B.

Description

Technical Field

[0001] The utility model relates to the technical field of punch protection structures, in particular to a punch protection structure for a stamping die. Background Technique

[0002] With the miniaturization of electronic components, the terminals in connectors are also becoming more and more miniaturized. Therefore, the corresponding stamping die parts are becoming more and more slender. During the blanking process, slender punches will bear relatively large impact forces. If the punches lack guiding protection, the slender punches are very easy to break. The inserts of the traditional structure are processed by wire cutting electrical discharge machining, and only use the inserts to provide a guiding protection for the straight body section of the punch. The reinforcing section of the punch is completely cleared. During the blanking process, the force on the punch and the vibration caused by the movement of the punch itself along with the upper die, the punch is very easy to break from its straight body root, which cannot meet the requirements of mass production. In addition, during the die closing process of the punch, the traditional structure is prone to unsmooth cooperation with the insert due to the shaking of the punch, resulting in punch breakage or damage to the cutting edge angle of the punch.

[0003] Therefore, we propose a punch protection structure for a stamping die to facilitate the solution of the problems raised above. Content of the Utility Model

[0004] The purpose of the utility model is to provide a punch protection structure for a stamping die to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a flushing protection structure for a stamping die, including insert A and insert B arranged on one side of insert A. A number of guiding grooves are equidistantly opened between insert A and insert B, and punch parts are respectively arranged in the inner cavities of the guiding grooves. On one side of each punch part, a fastening plate B is respectively fitted and installed, and the sides of the fastening plate B away from the punch parts are respectively fixedly installed in the inner cavities of the guiding grooves. On one side of the top of insert A, a fastening component is installed.

[0006] Preferably, the bottom of the punch part is the straight body section of the punch, and a through groove for protecting the straight body section of the punch is opened at the bottom of the inner cavity of the guiding groove. The straight body sections of the punches respectively pass through the through grooves and extend to the outside of insert A and insert B.

[0007] Preferably, the fastening component includes a fastening plate A fitted and installed on the other side of the punch part and a moving rod fixedly installed on the outside of the fastening plate A. The ends of the moving rods away from the fastening plate A respectively slide through insert A and are jointly fixedly installed with an adjusting plate. A threaded hole is opened in the middle of the adjusting plate, and a threaded rod is threadedly penetrated and installed in the inner cavity of the threaded hole. One end of the threaded rod is rotatably installed on insert A.

[0008] Preferably, a knob is fixedly installed at the other end of the threaded rod.

[0009] Preferably, square holes are respectively formed near the front and rear sides of the adjusting plate, and L-shaped square rods are respectively installed through the inner cavities of the square holes in a sliding manner. One ends of the L-shaped square rods are respectively fixedly installed on the insert A, and the lower ends of the L-shaped square rods are respectively fixedly installed on the insert A.

[0010] Preferably, the fastening plate A is located in the inner cavity of the guiding groove, and the fastening plate A is arranged linearly from front to back.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] This technology is applicable to cutting dies in the stamping field, especially dies with punches for blanking. By using insert A and insert B to provide double guiding protection for the punch, the problem of punch fracture during die closing and blanking is solved. By adding insert A and insert B to guide and limit the punch and the straight section of the punch, it can ensure that the punch smoothly passes through the insert during die closing. During the blanking process, the force received by the punch can be concentrated as much as possible in the blanking direction of the punch, avoiding fracture. The setting of the fastening plate A and the fastening plate B can improve the stability of the punch in the insert A and the insert B. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the overall three-dimensional view of the utility model;

[0014] Figure 2 is the left-side three-dimensional view of the utility model;

[0015] Figure 3 is the partial sectional three-dimensional view of the utility model;

[0016] Figure 4 is the partial left-side three-dimensional view of the utility model;

[0017] Figure 5 is the partial sectional expanded three-dimensional view of the utility model;

[0018] Figure 6 is the Figure 3 enlarged view at A of the utility model;

[0019] Figure 7 is the Figure 4 enlarged view at B of the utility model.

[0020] In the figure: 1. Insert A; 2. Insert B; 3. Punch part; 31. Straight section of the punch; 4. Fastening assembly; 41. Fastening plate A; 42. Moving rod; 43. Adjusting plate; 431. Square hole; 432. L-shaped square rod; 44. Threaded hole; 45. Threaded rod; 451. Knob; 5. Fastening plate B. DETAILED DESCRIPTION OF THE INVENTION

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Embodiment 1: Please refer to Figures 1-5 , a punch protection structure for a stamping die, including insert A1 and insert B2 arranged on one side of insert A1. A plurality of guide grooves are equidistantly opened between insert A1 and insert B2, and punch parts 3 are respectively arranged in the inner cavities of the guide grooves. Fastening plates B5 are respectively and fittingly installed on one side of the punch parts 3, and the sides of the fastening plates B5 away from the punch parts 3 are respectively fixedly installed in the inner cavities of the guide grooves. A fastening assembly 4 is installed on one side of the top of insert A1. Through the setting of the fastening assembly 4, the punch parts 3 can be fastened and fixed.

[0023] The bottom of the punch part 3 is the punch straight section 31, and through grooves for protecting the punch straight section 31 are opened at the bottom of the inner cavity of the guide groove. The punch straight sections 31 respectively pass through the through grooves and extend to the outside of insert A1 and insert B2, improving the protection of the punch parts 3.

[0024] Embodiment 2: This embodiment is an improvement made on the basis of Embodiment 1. Specifically, please refer to Figures 1-2 and Figures 6-7 , the fastening assembly 4 includes a fastening plate A41 fittingly installed on the other side of the punch part 3 and a moving rod 42 fixedly installed on the outside of the fastening plate A41. The ends of the moving rod 42 away from the fastening plate A41 respectively slide through insert A1 and are jointly fixedly installed with an adjusting plate 43. A threaded hole 44 is opened in the middle of the adjusting plate 43, and a threaded rod 45 is threadedly installed through the inner cavity of the threaded hole 44. One end of the threaded rod 45 is rotatably installed on insert A1. Through the setting of the fastening plate A41, the punch part 3 can be fixed in cooperation with the fastening plate B5.

[0025] The other end of the threaded rod 45 is fixedly installed with a knob 451. Through the setting of the knob 451, the threaded rod 45 can be driven to rotate.

[0026] Square holes 431 are respectively opened near the front and rear sides of the adjusting plate 43, and L-shaped square rods 432 are respectively slidably installed through the inner cavities of the square holes 431. One ends of the L-shaped square rods 432 are respectively fixedly installed on insert A1, and the lower ends of the L-shaped square rods 432 are respectively fixedly installed on insert A1, which can guide and limit the movement of the adjusting plate 43.

[0027] The fastening plate A41 is located in the inner cavity of the guiding groove, and the fastening plates A41 are linearly arranged from front to back, and can fasten a plurality of punch parts 3.

[0028] Working principle: When in use, by adding the insert A1 and the insert B2, the guiding and limiting of the punch part 3 and the straight body part 31 of the punch can be realized, which can ensure that the punch part 3 smoothly passes through the insert A1 and the insert B2 during mold closing. During the punching process, the force received by the punch part 3 can be concentrated as much as possible in the punching direction of the punch to avoid fracture. In addition, after the punch part 3 passes through the guiding grooves on the insert A1 and the insert B2, the knob 451 can be rotated to drive the threaded rod 45 to rotate. When the threaded rod 45 rotates, it will drive the adjusting plate 43 to move towards the punch part 3 through the threaded hole 44. At this time, the fastening plate A41 will be driven to move towards the punch part 3 through the moving rod 42, so as to cooperate with the fastening plate B5 to realize the fastening of the punch part 3.

[0029] The content not described in detail in this specification belongs to the prior art well known to those skilled in the art.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A punch protection structure for a stamping die, comprising an insert A (1) and an insert B (2) arranged on one side of the insert A (1), characterized in that: A plurality of guide grooves are provided at equal intervals between the insert A (1) and the insert B (2), and the inner cavities of the guide grooves are provided with punch parts (3), and fastening plates B (5) are fitted and installed on one side of the punch parts (3), and the sides of the fastening plates B (5) away from the punch parts (3) are fixedly installed in the inner cavities of the guide grooves, and a fastening assembly (4) is installed on one side of the top of the insert A (1).

2. A punch protection structure for a stamping die according to claim 1, characterized in that: The bottom of the punch component (3) is a punch straight section (31), and a through slot for protecting the punch straight section (31) is provided at the bottom of the inner cavity of the guide slot, and the punch straight section (31) extends through the through slot to the outside of the insert A (1) and the insert B (2).

3. A punch protection structure for a stamping die according to claim 1, characterized in that: The fastening assembly (4) comprises a fastening plate A (41) fitted to the other side of the punch member (3) and a moving rod (42) fixedly mounted on the outside of the fastening plate A (41); one end of the moving rod (42) away from the fastening plate A (41) slides through the insert A (1) and is fixedly mounted with an adjustment plate (43); a threaded hole (44) is provided at the middle of the adjusting plate (43); a threaded rod (45) is installed through the inner thread of the threaded hole (44); one end of the threaded rod (45) is rotatably mounted on the insert A (1).

4. A punch protection structure for a stamping die according to claim 3, characterized in that: A knob (451) is fixedly mounted on the other end of the threaded rod (45).

5. A punch protection structure for a stamping die according to claim 3, characterized in that: The adjusting plate (43) is provided with square holes (431) near the front and rear sides, and an L-shaped square rod (432) is slidably installed in the inner cavity of the square hole (431), one end of the L-shaped square rod (432) is fixedly installed on the insert A (1), and the lower end of the L-shaped square rod (432) is fixedly installed on the insert A (1).

6. A punch protection structure for a stamping die according to claim 3, characterized in that: The fastening plates A (41) are all located in the inner cavity of the guide groove, and the fastening plates A (41) are arranged linearly from front to back.

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