A copper contact stamping jig

Abstract

The utility model discloses a copper contact stamping jig, comprising an upper die base, a lower die base and a buffer component arranged between the upper die base and the lower die base, wherein a guide punching station, an outer shape pre-punching station, a shaping station, a first empty step station, a second empty step station and a cutting and blanking station are sequentially arranged on the lower die base, the overall structure of the copper contact processed by the jig is controllable, and the shape processing of the copper contact is more precise.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a copper contact stamping jig. Background Art

[0002] Electrical contact points are important components in the fields of switches, relays and electrical connections. Copper contacts are a common contact material and are often riveted on metal shrapnel for use. At present, when copper contacts are made on metal shrapnel, a spiral vibration plate is usually used to transport the small copper contacts to the installation position. The shape of the copper contacts must be convenient for the spiral vibration plate to transport, so the stamping of the copper contacts is crucial. Utility Model Content

[0003] The utility model aims to provide a copper contact stamping jig, the shape of the copper contact finished product of which is controllable and has a low defect rate.

[0004] The purpose of the utility model is achieved by the following technical solutions:

[0005] A copper contact stamping jig comprises an upper die base, a lower die base and a buffer assembly arranged between the upper die base and the lower die base, wherein the lower die base is provided with:

[0006] The guide punching station is used to punch out a number of equidistant guide holes on both sides of the strip;

[0007] The external shape pre-punching station includes two symmetrical punching slots, the length direction of which is perpendicular to the length direction of the material strip, and one long side of which is provided with a plurality of convex slots of equal size extending outwards. The external shape pre-punching station punches a plurality of external shape holes on the material strip, and a plurality of prefabricated points are formed between two adjacent external shape holes;

[0008] A shaping station is used to arrange the contact shape on the prefabricated point to form a copper point unit;

[0009] The first empty step station;

[0010] The second empty step station;

[0011] The cutting and blanking station is used to punch the copper dot units out of the material strip and drop them out of the lower die base.

[0012] Furthermore, the guiding punching station includes a guiding groove, and the upper die seat is provided with a first through hole at a position corresponding to the guiding groove, and an external stamping part passes through the first through hole to punch out the guiding holes on both sides of the material strip.

[0013] Furthermore, at the outer pre-punching station, the convex groove connected to the punching groove on the left side faces the guide punching station, and the convex groove connected to the punching groove on the right side faces the shaping station.

[0014] Furthermore, the upper die base is provided with a second through hole at a position corresponding to the punching slot, and the externally arranged forming part passes through the second through hole to arrange the contact shape at the prefabricated point.

[0015] Furthermore, the cutting and blanking station includes a cutting platform and a blanking hole arranged on the cutting platform, the blanking hole passes through the lower die base, and the upper die base is provided with a third through hole at a position corresponding to the cutting platform, and an external cutting piece passes through the third through hole to cut the copper dot unit on the cutting platform.

[0016] Furthermore, a waste cutting station is provided after the cutting and blanking station, and a fourth through hole is provided at the upper die base at a position corresponding to the waste cutting station, and an external cutting piece passes through the fourth through hole and cuts the material strip into strip-shaped waste along the width direction of the material strip.

[0017] Furthermore, the upper die seat includes an upper base and an upper functional seat arranged under the upper base, and the lower die seat includes a lower base and a lower functional seat arranged on the lower base.

[0018] Furthermore, the buffer assembly includes a first support rod, a second support rod and a spring member, the first support rod is arranged on the lower base, the second support rod is arranged on the upper base, and the spring member is arranged on the first support rod and the second support rod.

[0019] Furthermore, guide posts are provided on both sides of the material strip, and the guide posts are arranged on the lower die base, and positioning pieces for fixing the guide holes are provided on the inner sides of the guide posts.

[0020] The beneficial effects of the utility model are:

[0021] The utility model firstly cuts the outer shape holes on the material strip, that is, forms multiple rows and columns of prefabricated points with equal spacing on the material strip, and the shaping station arranges the contact shape at the prefabricated point position. Different from arranging the contact shape directly on the material strip, arranging the contact shape on the prefabricated point can preset the position of the contact unit on the one hand, and control the shape of the prefabricated point on the other hand. The overall structure of the copper contact is controllable, and the shape processing of the copper contact is more precise. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a copper contact stamping jig of the utility model.

[0023] Figure 2 It is a top view of the lower die base in the utility model.

[0024] Figure 3 It is a processing flow chart of the material belt in the utility model.

[0025] In the figure: 1, upper die seat; 101, upper base; 102, upper functional seat; 2, lower die seat; 201, lower base; 202, lower functional seat; 3, buffer assembly; 301, first support rod; 302, second support rod; 303, spring member; 4, guide punching station; 401, guide groove; 5, external pre-punching station; 501, punching groove; 502, convex groove; 6, shaping station; 7, first Empty step station; 8. Second empty step station; 9. Cutting and blanking station; 901. Cutting platform; 902. Blanking hole; 10. Waste cutting station; 11. Material strip; 12. Guide hole; 13. Shape hole; 14. Prefabricated point; 15. Contact shape; 16. First through hole; 17. Second through hole; 18. Third through hole; 19. Fourth through hole; 20. Guide column; 21. Positioning piece; 22. Fifth through hole. DETAILED DESCRIPTION

[0026] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clearly understood, the utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0027] like Figures 1 to 3 As shown, the utility model provides a copper contact stamping jig, including an upper die base 1, a lower die base 2 and a buffer assembly 3 arranged between the upper die base 1 and the lower die base 2, and the lower die base 2 is sequentially provided with a guide punching station 4, an outer shape pre-punching station 5, a shaping station 6, a first empty step station 7, a second empty step station 8 and a cutting and blanking station 9.

[0028] The guiding punching station 4 is used to punch out a number of equidistant guiding holes 12 on both sides of the material strip 11; the outer shape pre-punching station 5 is used to punch out outer shape holes 13 on the material strip 11. Due to the shape of the outer shape holes 13, multiple rows and columns of prefabricated points 14 are formed around the outer shape holes 13; the shaping station 6 is used to arrange the contact shape 15 on the prefabricated points 14 to form copper point units; the cutting and blanking station 9 is used to punch out the copper point units from the material strip 11 and drop them out of the lower die base 2.

[0029] Specifically, the exterior pre-punching station 5 includes two symmetrical punching slots 501, the length direction of the punching slots 501 is perpendicular to the length direction of the material strip 11, and one long side of the punching slots 501 is provided with a plurality of convex slots 502 of equal size extending outward. The exterior pre-punching station 5 punches out a plurality of exterior holes 13 on the material strip 11, and a plurality of prefabricated points 14 are formed between two adjacent exterior holes 13.

[0030] The material strip 11 passes through the guiding punching station 4, the outer shape pre-punching station 5, the shaping station 6, the first empty step station 7 and the second empty step station 8 in sequence, and finally forms the copper dot finished product at the cutting and blanking station 9, and the finished product is collected under the lower die base 2.

[0031] The utility model first cuts the outer shape holes 13 on the material strip 11, that is, forms multiple rows and columns of prefabricated points 14 with equal spacing on the material strip 11, and the shaping station 6 arranges the contact shape 15 at the position of the prefabricated point 14. Different from arranging the contact shape 15 directly on the material strip 11, arranging the contact shape 15 on the prefabricated point 14 can, on the one hand, preset the position of the contact unit, and on the other hand, control the shape of the prefabricated point 14. Therefore, compared with the prior art, the overall structure of the copper contact is controllable and the shape processing of the copper contact is more precise.

[0032] The shape of the prefabricated point 14 depends on the shapes of the punching slot 501 and the convex slot 502 . According to actual needs, the shapes of the punching slot 501 and the convex slot 502 are adjusted to adjust the shape of the prefabricated point 14 .

[0033] Furthermore, the guiding punching station 4 includes a guiding groove 401 , and the upper die base 1 is provided with a first through hole 16 at a position corresponding to the guiding groove 401 . The external stamping part passes through the first through hole 16 to punch out guiding holes 12 on both sides of the material strip 11 .

[0034] Furthermore, in the outer pre-punching station 5 , the convex groove 502 connected to the left punching groove 501 faces the guiding punching station 4 , and the convex groove 502 connected to the right punching groove 501 faces the shaping station 6 .

[0035] Furthermore, the upper die base 1 is provided with a second through hole 17 at a position corresponding to the punching slot 501 , and the externally arranged molded part passes through the second through hole 17 to arrange the contact shape 15 on the prefabricated point 14 .

[0036] Furthermore, the cutting and blanking station 9 includes a cutting platform 901 and a blanking hole 902 arranged on the cutting platform 901. The blanking hole 902 passes through the lower mold base 2. The upper mold base 1 is provided with a third through hole 18 at a position corresponding to the cutting platform 901. The external cutting piece passes through the third through hole 18 to cut the copper point unit on the cutting platform 901.

[0037] Furthermore, a waste cutting station 10 is provided after the cutting and blanking station 9. The upper mold base 1 is provided with a fourth through hole 19 at a position corresponding to the waste cutting station 10. The external cutting piece passes through the fourth through hole 19 and cuts the material strip 11 into strip-shaped waste along the width direction of the material strip 11, which is convenient for waste collection.

[0038] Furthermore, the upper die base 1 is provided with a fifth through hole 22 at a position corresponding to the shaping station 6 .

[0039] Furthermore, the upper mold base 1 includes an upper base 101 and an upper functional base 102 disposed under the upper base 101 , and the lower mold base 2 includes a lower base 201 and a lower functional base 202 disposed on the lower base 201 .

[0040] Furthermore, the buffer assembly 3 includes a first support rod 301 , a second support rod 302 and a spring member 303 . The first support rod 301 is disposed on the lower base 201 , the second support rod 302 is disposed on the upper base 101 , and the spring member 303 is disposed on the first support rod 301 and the second support rod 302 .

[0041] Furthermore, guide columns 20 are provided on both sides of the material strip 11, and the guide columns 20 are arranged on the lower mold base 2. Positioning members 21 for fixing the guide holes 12 are provided on the inner side thereof. The positioning members 21 fix the guide holes 12 to ensure that the material strip 11 will not shake during processing at each workstation, thereby ensuring processing accuracy.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall fall within the protection scope of the present invention.

Claims

1. A copper contact stamping jig, characterized in that: The invention comprises an upper die base (1), a lower die base (2), and a buffer assembly (3) arranged between the upper die base (1) and the lower die base (2), wherein the lower die base (2) is provided with: A guide punching station (4) for punching a plurality of equidistant guide holes (12) on both sides of the material strip (11); The outer shape pre-punching station (5) comprises two symmetrical punching slots (501), the length direction of the punching slots (501) is perpendicular to the length direction of the material strip (11), one long side of the punching slots (501) is provided with a plurality of convex slots (502) of equal size extending outwards, the outer shape pre-punching station (5) punches out a plurality of outer shape holes (13) on the material strip (11), and a plurality of prefabricated points (14) are formed between two adjacent outer shape holes (13); A shaping station (6) is used to arrange a contact shape (15) on the prefabricated point (14) to form a copper point unit; First empty step station (7); The second empty step station (8); The cutting and blanking station (9) is used to punch out the copper dot units from the material strip (11) and drop them out of the lower die base (2).

2. A copper contact stamping jig according to claim 1, characterized in that: The guiding punching station (4) comprises a guiding groove (401), the upper die seat (1) is provided with a first through hole (16) at a position corresponding to the guiding groove (401), and an external punching part passes through the first through hole (16) to punch out the guiding holes (12) on both sides of the material strip (11).

3. A copper contact stamping jig according to claim 1, characterized in that: At the outer shape pre-punching station (5), the convex groove (502) connected to the punching groove (501) on the left side faces the guiding punching station (4), and the convex groove (502) connected to the punching groove (501) on the right side faces the shaping station (6).

4. A copper contact stamping jig according to claim 1, characterized in that: The upper die base (1) is provided with a second through hole (17) at a position corresponding to the punching slot (501), and an externally arranged molded part passes through the second through hole (17) to arrange a contact shape (15) on the prefabricated point (14).

5. The copper contact stamping jig according to claim 1, characterized in that: The cutting and blanking station (9) comprises a cutting platform (901) and a blanking hole (902) provided on the cutting platform (901); the blanking hole (902) passes through the lower die base (2); the upper die base (1) is provided with a third through hole (18) at a position corresponding to the cutting platform (901); an external cutting piece passes through the third through hole (18) to cut the copper dot unit on the cutting platform (901).

6. A copper contact stamping jig according to claim 1, characterized in that: A waste cutting station (10) is further provided after the cutting and blanking station (9); a fourth through hole (19) is provided on the upper die base (1) at a position corresponding to the waste cutting station (10); an external cutting piece passes through the fourth through hole (19) and cuts the material strip (11) into strip-shaped waste along the width direction of the material strip (11).

7. A copper contact stamping jig according to claim 1, characterized in that: The upper die base (1) comprises an upper base (101) and an upper functional base (102) arranged below the upper base (101); the lower die base (2) comprises a lower base (201) and a lower functional base (202) arranged on the lower base (201).

8. A copper contact stamping jig according to claim 7, characterized in that: The buffer assembly (3) comprises a first support rod (301), a second support rod (302) and a spring member (303); the first support rod (301) is arranged on the lower base (201), the second support rod (302) is arranged on the upper base (101), and the spring member (303) is arranged on the first support rod (301) and the second support rod (302).

9. The copper contact stamping jig according to claim 1, characterized in that: Guide columns (20) are provided on both sides of the material strip (11); the guide columns (20) are arranged on the lower die base (2), and positioning pieces (21) for fixing the guide holes (12) are provided on the inner sides of the guide columns (20).

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