Stamping equipment and stamping method for producing vacuum electrical contact

Abstract

The present application relates to the technical field of stamping equipment, and specifically to stamping equipment and a stamping method for producing vacuum electrical contacts. The present application provides a stamping equipment for producing vacuum electrical contacts, including an upper die seat, an upper template is arranged below the upper die seat, a first return spring is arranged between the upper template and the upper template, a punch is arranged on the upper die seat, a lower template is arranged below the punch, a punching hole is provided on the lower template, a pair of conveying rollers for cooperating with the conveying of copper plates are arranged on one side of the lower template, and also includes: a pair of guide plates, fixedly connected to the lower template, and an avoidance groove for avoiding the guide plate is provided on the upper template; a cutter, mounted on the upper die seat, and a groove that can cooperate with the cutter is provided on the lower template, and a baffle is arranged on the side of the lower template away from the conveying roller, and the baffle is used to block the conveying of the copper plate, and a rotating mechanism is arranged on the lower template, and the rotating mechanism is used to drive the baffle to rotate. The present application can improve the utilization rate of copper plates.

Description

Technical Field

[0001] The present application relates to the technical field of stamping equipment, and in particular to stamping equipment and a stamping method for producing vacuum electrical contacts. Background Art

[0002] A vacuum electrical contact is a key component used in a vacuum circuit breaker or vacuum contactor. It is usually made of metal materials and is used to transfer current or disconnect circuits in electrical equipment. Common vacuum electrical contacts include plum blossom contacts, which include contact pieces, support frames, tension springs, and spring contact fingers. Stamping is a processing technology that applies pressure to metal sheets through a mold to cause them to undergo plastic deformation. In the process of producing contacts, stamping is usually used to ensure precise shape and size, improve production efficiency, improve the mechanical properties of the material, and reduce material waste.

[0003] Commonly used stamping equipment usually includes an upper die base, a punch is arranged on the upper die base, a support rod is slidably connected to the upper die base, an upper die plate is connected to the end of the support rod away from the upper die base, a return spring is arranged between the upper die base and the upper die plate, a lower die plate and a lower die base are arranged below the upper die base in sequence, and a punching hole is opened on the lower die plate. Referring to the Chinese patent document with the authorization announcement number CN113102616B, the subject name is a sheet metal stamping equipment. In this patent, a punch is arranged on the frame, a lower die that can cooperate with the punch for stamping is arranged below the punch, a reeling device for placing raw materials is arranged on one side of the frame, and a pair of conveying rollers are arranged on the frame, and the pair of conveying rollers rotate and cooperate to convey the raw materials.

[0004] With regard to the above-mentioned related technologies, when the copper plate is transported by the conveyor roller, slipping may occur due to the small friction between the conveyor roller and the copper plate. The slipping reduces the transmission distance, and the reduced transmission distance may cause the risk of unqualified stamping products. In order to reduce the impact of slipping on the stamping process during the production process, a larger stamping interval is usually set. However, a larger stamping interval will affect the utilization rate of the copper plate. Summary of the invention

[0005] In order to improve the utilization rate of copper plates, the present application provides a stamping device and a stamping method for producing vacuum electrical contacts.

[0006] To solve the above technical problems, in the first aspect, the present application provides a stamping device for producing vacuum electrical contacts, which adopts the following technical scheme: a stamping device for producing vacuum electrical contacts, comprising an upper die base, an upper template, a punch and a lower template, a first return spring is arranged between the upper die base and the upper template, a pair of conveying rollers for cooperating in conveying copper plates are arranged on one side of the lower template, and also includes: a pair of guide plates, fixedly connected to the lower template, a avoidance groove for avoiding the guide plates is provided on the upper template; a cutter, mounted on the upper die base, a groove that can cooperate with the cutter is provided on the lower template, a baffle is arranged on the side of the lower template away from the conveying roller, the baffle is used to block the conveying of the copper plates, and a rotating mechanism is provided on the lower template, the rotating mechanism is used to drive the baffle to rotate.

[0007] By adopting the above technical scheme, when the copper plate is stamped, during the downward movement of the upper die seat, the first return spring can be compressed and the elastic force of the first return spring can press the copper plate, and at the same time, the setting of the first return spring can play a buffering role, reducing the risk of the copper plate being crushed; the setting of the guide plate can guide the movement of the copper plate; the cutter and the groove can cooperate to cut the stamped copper plate, thereby reducing the space occupied by the stamped copper plate; the setting of the baffle to block the conveying of the copper plate makes it possible for the distance moved by the copper plate in one stamping to be the distance between the cutter and the baffle regardless of whether the conveying roller slips, thereby reducing the risk of uncertain moving distance due to slipping of the conveying roller, and the rotation of the baffle can reduce the risk of the cut copper plate being stuck between the lower template and the baffle when cutting the stamped copper plate.

[0008] In the present application, the baffle can block the continuous conveyance of the copper plate, so that regardless of whether the conveying roller slips or not, the distance the copper plate moves in one stamping is the distance between the cutter and the baffle, reducing the risk of uncertain moving distance due to slippage of the conveying roller, reducing the need for large intervals in stamping, and helping to improve the utilization rate of the copper plate.

[0009] Optionally, a pressure sensor is provided on the baffle, and the conveying roller stops conveying the copper plate when the copper plate contacts the baffle.

[0010] By adopting the above technical solution, the conveying roller can stop conveying the copper plate after the copper plate contacts the baffle, which can reduce the risk of deformation of the copper plate on the one hand and the risk of the baffle being continuously stressed and affecting its life on the other hand.

[0011] Optionally, the rotating mechanism includes a first sliding groove opened on the lower template, a pair of support seats are arranged in the first sliding groove, the support seat and the bottom wall of the first sliding groove are connected by a second return spring, a sliding member is arranged between the pair of support seats, the sliding member protrudes from the first sliding groove, a sliding plate is fixedly connected to the support seat, a second sliding groove is opened on the lower template for the sliding plate to slide up and down, the baffle is hinged on the sliding plate, a fixing rod is fixedly connected to the guide plate, and a third sliding groove is opened on the baffle for the fixing rod to slide.

[0012] By adopting the above technical scheme, when the upper template moves downward, the sliding member can be pushed downward, and the downward movement of the sliding member drives the sliding plate downward and compresses the second return spring. The downward movement of the sliding plate drives the baffle to rotate upward, and the baffle loses its blocking effect on the copper plate; when the upper template moves upward, the sliding member can move upward under the action of the restoring force of the second return spring and drive the sliding plate upward. The upward movement of the sliding plate drives the baffle to rotate downward, and the baffle restores its blocking ability to the copper plate. Through the setting of the second return spring, the rotating roller can automatically reset when the upper mold base moves upward.

[0013] By setting the rotating mechanism, the baffle can be driven to rotate simultaneously when the upper template moves up and down, thereby reducing the need for an additional power source and saving energy.

[0014] Optionally, the sliding member is a rotating roller, and the rotating roller is rotatably disposed between a pair of support seats.

[0015] By setting the rotating roller, when the copper plate is conveyed, the rotating roller can replace the lower template surface to contact the copper plate and convert the sliding friction into rolling friction, thereby reducing the friction force on the copper plate and reducing the risk of scratches on the copper plate.

[0016] Optionally, the maximum distance between the bottom of the second sliding groove and the sliding plate is greater than the maximum distance that the rotating roller protrudes from the first sliding groove.

[0017] By adopting the above technical solution, the risk that the second sliding groove blocks the sliding plate from moving and the rotating roller cannot fully enter the first sliding groove can be reduced, thereby facilitating the stamping of the copper plate.

[0018] Optionally, the lower template is provided with an inclined groove connected to the groove, a push plate is hinged in the inclined groove, and a driving mechanism is provided on the lower template, and the driving mechanism can drive the push plate to rotate.

[0019] Through the arrangement of the push plate and the driving mechanism, after the punched copper plate is cut off, the push plate can be rotated under the drive of the driving mechanism, and the cut copper plate can be pushed by the rotation of the push plate, thereby reducing the risk of the cut copper plate being stuck between the lower templates.

[0020] Optionally, the driving mechanism includes a connecting rod fixedly connected to the sliding plate, a fourth sliding groove for the connecting rod to move up and down is opened on the lower template, and one end of the connecting rod away from the sliding plate is slidably connected to the push plate.

[0021] By adopting the above technical solution, when the rotating roller moves downward, the rotating roller moves downward to drive the connecting rod to move downward and the push plate to rotate downward. When the rotating roller moves upward, the rotating roller moves upward to drive the connecting rod to move upward and the push plate to rotate upward.

[0022] Optionally, a fifth sliding groove is provided on the push plate, the fifth sliding groove is in an elongated strip shape, and the connecting rod can slide along the fifth sliding groove.

[0023] By adopting the above technical solution, the connecting rod can slide along the fifth sliding groove when moving up and down, thereby reducing the risk of the connecting rod being unable to move.

[0024] A stamping method for producing vacuum electrical contactors, comprising:

[0025] S1, conveying the copper plate, firstly, a pair of conveying rollers rotate and cooperate to convey the copper plate, the copper plate moves above the lower template under the action of the rotating rollers, then the copper plate contacts the baffle, and the conveying rollers stop rotating to convey the copper plate;

[0026] S2, punching and cutting the copper plate, first the upper die seat moves downward to drive the upper die plate, punch and cutter to move downward, the upper die plate moves downward to push the rotating roller to move downward, and the first return spring and the second return spring are compressed, the rotating roller moves downward to drive the baffle to rotate and drive the push plate to rotate downward, then the rotating roller stops moving downward, the baffle cancels the obstruction of the copper plate, the upper die seat continues to move downward and drives the upper end of the first return spring to move downward, the upper die plate is pressed against the copper plate under the action of the first return spring, the punch moves downward to punch the copper plate, and at the same time the cutter cooperates with the groove to cut the stamped copper plate, then the upper die seat moves upward to drive the upper die plate, punch and cutter to move upward, the upper die plate returns to its initial position under the drive of the upper die seat and the action of the restoring force of the first return spring, and at the same time the rotating roller moves upward under the action of the restoring force of the second return spring, the rotating roller moves upward to drive the baffle to rotate to restore the blocking ability of the copper plate, and drives the push plate to rotate upward.

[0027] By adopting the above method, the length of the copper plate conveyed by the conveying roller during each stamping process can be maintained at a certain distance, so there is no need to set a larger conveying interval, which is beneficial to improving the utilization rate of the copper plate.

[0028] In summary, the present application includes at least one of the following beneficial effects:

[0029] 1. In the present application, the baffle can block the continuous conveying of the copper plate, so that no matter whether the conveying roller slips or not, the distance the copper plate moves in one stamping is the distance between the cutter and the baffle, which reduces the risk of uncertain moving distance due to slipping of the conveying roller, reduces the need for large intervals in stamping, and is conducive to improving the utilization rate of the copper plate.

[0030] 2. By setting the rotating roller, when the copper plate is conveyed, the rotating roller can replace the lower template surface to contact the copper plate and convert the sliding friction into rolling friction, thereby reducing the friction force on the copper plate and reducing the risk of scratches on the copper plate.

[0031] 3. Through the setting of the push plate and the driving mechanism, after the punched copper plate is cut off, the push plate can be rotated under the drive of the driving mechanism, and the cut copper plate can be pushed by the rotation of the push plate, reducing the risk of the cut copper plate being stuck between the lower templates. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application;

[0033] Figure 2 This is a schematic diagram of the structure of the rotating mechanism in the embodiment of the present application;

[0034] Figure 3 This is a schematic diagram of the structure of the fourth sliding slot in the embodiment of the present application;

[0035] Figure 4 This is a schematic diagram of the structure of the second sliding groove in the embodiment of the present application;

[0036] Figure 5 Schematic diagram of the structure of the driving mechanism in the embodiment of the present application.

[0037] Explanation of the accompanying drawings: 1. upper die seat; 11. punch; 12. cutter; 2. upper die plate; 21. first return spring; 22. avoidance groove; 3. lower die plate; 31. punching hole; 32. guide plate; 33. groove; 34. first sliding groove; 35. second sliding groove; 36. inclined groove; 37. fourth sliding groove; 4. conveying roller; 5. baffle; 51. third sliding groove; 6. rotating mechanism; 61. support seat; 62. second return spring; 63. rotating roller; 64. sliding plate; 65. fixing rod; 7. push plate; 71. fifth sliding groove; 8. driving mechanism; 81. connecting rod. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the embodiments of the present application. Figure 1-Figure 5, the technical scheme of the embodiment of the present application is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present application, not all of the embodiments. Based on the described embodiment of the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0039] In a first aspect, an embodiment of the present application discloses a stamping device for producing vacuum electrical contacts.

[0040] Reference Figure 1 to Figure 2 A stamping device for producing vacuum electrical contacts comprises an upper die base 1, an upper die plate 2 is arranged below the upper die base 1, a first reset spring 21 is arranged between the upper die base 1 and the upper die plate 2, a punch 11 is arranged on the upper die base 1, a lower die plate 3 is arranged below the punch 11, a punching hole 31 is provided on the lower die plate 3, a pair of conveying rollers 4 for cooperating with the conveying of copper plates are arranged on one side of the lower die plate 3, and a pair of guide plates 32 are fixedly connected to the lower die plate 3, an avoidance groove 22 for avoiding the guide plate 32 is provided on the upper die plate 2, the upper die plate 2 can press the copper plate, a cutter 12 is arranged on the upper die base 1, a groove 33 that can cooperate with the cutter 12 is arranged on the lower die base, a baffle 5 is arranged on the side of the lower die plate 3 away from the conveying roller 4, the baffle 5 is used to block the conveying of the copper plate, and a rotating mechanism 6 is arranged on the lower die plate 3, and the rotating mechanism 6 is used to drive the baffle 5 to rotate.

[0041] When the copper plate is stamped, during the downward movement of the upper die seat 1, the first return spring 21 can be compressed and the elastic force of the first return spring 21 can press the copper plate, and at the same time, the setting of the first return spring 21 can play a buffering role, reducing the risk of the copper plate being crushed; the setting of the guide plate 32 can guide the movement of the copper plate; the punched copper plate can be cut off by the cooperation of the cutter 12 and the groove 33, thereby reducing the space occupied by the punched copper plate; the setting of the baffle 5 to block the conveying of the copper plate makes it possible that regardless of whether the conveying roller 4 slips, the distance the copper plate moves in one stamping is the distance between the cutter 12 and the baffle 5, thereby reducing the risk of uncertain moving distance due to slipping of the conveying roller 4, and the rotation of the baffle 5 can reduce the risk of the cut copper plate being stuck between the lower template 3 and the baffle 5 when the stamped copper plate is cut.

[0042] In the present application, the baffle 5 can block the continuous conveying of the copper plate, so that regardless of whether the conveying roller 4 slips, the distance the copper plate moves in one stamping is the distance between the cutter 12 and the baffle 5, reducing the risk of uncertain moving distance due to slipping of the conveying roller 4, reducing the need for large intervals in stamping, and helping to improve the utilization rate of the copper plate.

[0043] A pressure sensor is provided on the baffle plate 5 , and the conveying roller 4 stops conveying the copper plate when the copper plate contacts the baffle plate 5 .

[0044] By setting the pressure sensor, the conveying roller 4 can stop conveying the copper plate after the copper plate contacts the baffle 5, which can reduce the risk of deformation of the copper plate on the one hand and reduce the risk of the baffle 5 being continuously stressed and affecting its life on the other hand.

[0045] Reference Figures 2 to 4 The rotating mechanism 6 includes two first sliding grooves 34 opened on the lower template 3, a pair of support seats 61 are arranged in each first sliding groove 34, the support seat 61 and the bottom wall of the first sliding groove 34 are connected by a second return spring 62, a rotating roller 63 is rotatably arranged between the pair of support seats 61, and the rotating roller 63 protrudes from the first sliding groove 34, a sliding plate 64 is fixedly connected to the support seat 61 on the side close to the baffle 5, a second sliding groove 35 for the sliding plate 64 to slide up and down is opened on the lower template 3, the baffle 5 is hinged on the sliding plate 64, a fixing rod 65 is fixedly connected to the guide plate 32, and a third sliding groove 51 for the fixing rod 65 to slide is opened on the baffle 5, and the maximum distance between the bottom of the second sliding groove 35 and the sliding plate 64 is greater than the maximum distance of the rotating roller 63 protruding from the first sliding groove 34.

[0046] When the upper template 2 moves downward, it can push the rotating roller 63 to move downward and compress the second reset spring 62. The rotating roller 63 moves downward and drives the sliding plate 64 to move downward. The sliding plate 64 moves downward and drives the baffle 5 to rotate upward, and the baffle 5 loses its blocking effect on the copper plate; when the upper template 2 moves upward, the rotating roller 63 moves upward under the action of the restoring force of the second reset spring 62, drives the sliding plate 64 to move upward, and drives the baffle 5 to rotate downward, and the baffle 5 restores its blocking ability to the copper plate. Through the setting of the second reset spring 62, the rotating roller 63 can automatically reset when the upper mold base 1 moves upward.

[0047] By setting the rotating mechanism 6, the baffle 5 can be driven to rotate simultaneously when the upper template 2 moves up and down, reducing the need for additional power source and saving energy; by setting the rotating roller 63, when the copper plate is conveyed, the rotating roller 63 can replace the surface of the lower template 3 to contact the copper plate and convert the sliding friction into rolling friction, reducing the friction force on the copper plate and reducing the risk of scratches on the copper plate.

[0048] Reference Figure 3 and Figure 4 The lower template 3 is provided with an inclined groove 36, and a push plate 7 is hingedly connected to the side of the inclined groove 36 away from the conveying roller 4. The lower template 3 is provided with a driving mechanism 8, which can drive the push plate 7 to rotate.

[0049] By setting the push plate 7 and the driving mechanism 8, after the punched copper plate is cut off, the push plate 7 can be rotated under the drive mechanism 8, and the cut copper plate can be pushed by the rotation of the push plate 7, thereby reducing the risk of the cut copper plate being stuck between the lower templates 3.

[0050] Reference Figures 3 to 5 The driving mechanism 8 includes a connecting rod 81 fixedly connected to the sliding plate 64, a fourth sliding groove 37 is provided on the lower template 3 for the connecting rod 81 to move up and down, and a fifth sliding groove 71 is provided on the push plate 7. The fifth sliding groove 71 is long and narrow, and the end of the connecting rod 81 away from the sliding plate 64 can slide along the fifth sliding groove 71.

[0051] When the rotating roller 63 moves downward, the rotating roller 63 drives the connecting rod 81 downward and causes the push plate 7 to rotate downward. When the rotating roller 63 moves upward, the rotating roller 63 drives the connecting rod 81 upward and causes the push plate 7 to rotate upward.

[0052] The implementation principle of the stamping equipment for producing vacuum electrical contactors in the embodiment of the present application is as follows:

[0053] When stamping the copper plate, first a pair of conveying rollers 4 rotate to cooperate to convey the copper plate, then the copper plate contacts the baffle 5, the sensor controls the conveying roller 4 to stop rotating to convey the copper plate, then the upper die base 1 moves downward to drive the upper template 2, the punch 11 and the cutter 12 to move downward, the upper template 2 moves downward to first abut against the copper plate and then pushes the rotating roller 63 and the copper plate to move downward, during this process the first return spring 21 and the second return spring 62 are compressed, the rotating roller 63 moves downward to drive the baffle 5 to rotate and drive the push plate 7 to rotate downward, then the rotating roller 63, the copper plate and the upper template 2 stop moving downward, the baffle 5 cancels the obstruction to the copper plate, the upper die base 1 continues to move downward and drives the upper end of the first return spring 21 to move downward, and the upper die Plate 2 is pressed against the copper plate under the action of the elastic force of the first return spring 21, the punch 11 cooperates with the punching hole 31 to punch the copper plate, and at the same time, the cutter 12 cooperates with the groove 33 to cut the stamped copper plate, and then the upper die base 1 moves up to drive the upper template 2, the punch 11 and the cutter 12 to move up, and the upper template 2 returns to the initial position under the drive of the upper die base 1 and the action of the restoring force of the first return spring 21, and the rotating roller 63 moves up under the action of the restoring force of the second return spring 62, and the rotating roller 63 moves up to drive the baffle 5 to rotate to restore the blocking ability of the copper plate, and drives the push plate 7 to rotate upward to push the cut copper plate, and then repeats the process of conveying and punching the copper plate.

[0054] In a second aspect, an embodiment of the present application provides a stamping method for producing a vacuum electrical contact, comprising:

[0055] S1, conveying the copper plate. First, a pair of conveying rollers 4 rotate and cooperate to convey the copper plate. The copper plate moves above the lower template 3 under the action of the rotating roller 63. Then the copper plate contacts the baffle 5, and the conveying rollers 4 stop rotating to convey the copper plate.

[0056] S2, punching and cutting the copper plate, first the upper die seat 1 moves downward to drive the upper die plate 2, the punch 11 and the cutter 12 to move downward, the upper die plate 2 moves downward to push the rotating roller 63 to move downward, and the first return spring 21 and the second return spring 62 are compressed, the rotating roller 63 moves downward to drive the baffle 5 to rotate and drive the push plate 7 to rotate downward, then the rotating roller 63 stops moving downward, the baffle 5 cancels the obstruction to the copper plate, the upper die seat 1 continues to move downward and drives the upper end of the first return spring 21 to move downward, and the upper die plate 2 is pressed under the action of the first return spring 21 Tightly on the copper plate, the punch 11 moves down to punch the copper plate, and at the same time, the cutter 12 cooperates with the groove 33 to cut the stamped copper plate. Then, the upper die base 1 moves up to drive the upper template 2, the punch 11 and the cutter 12 to move up. The upper template 2 returns to its initial position under the drive of the upper die base 1 and the restoring force of the first return spring 21. At the same time, the rotating roller 63 moves up under the restoring force of the second return spring 62. The rotating roller 63 moves up to drive the baffle 5 to rotate to restore the blocking ability of the copper plate, and drives the push plate 7 to rotate upward.

[0057] In the present application, unless otherwise clearly stipulated and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0058] The above is a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A stamping device for producing vacuum electrical contactors, comprising an upper die base (1), an upper die plate (2), a punch (11) and a lower die plate (3), wherein a first return spring (21) is arranged between the upper die base (1) and the upper die plate (2), and a pair of conveying rollers (4) for cooperating in conveying copper plates are arranged on one side of the lower die plate (3), characterized in that: Also includes: A pair of guide plates (32) fixedly connected to the lower template (3), and an avoidance groove (22) for avoiding the guide plates (32) is provided on the upper template (2); A cutter (12) is mounted on the upper die seat (1); a groove (33) capable of cooperating with the cutter (12) is provided on the lower die plate (3); a baffle (5) is provided on the side of the lower die plate (3) away from the conveying roller (4); the baffle (5) is used to block the conveying of the copper plate; a rotating mechanism (6) is provided on the lower die plate (3); the rotating mechanism (6) is used to drive the baffle (5) to rotate; The rotating mechanism (6) comprises a first sliding groove (34) formed on the lower template (3), a pair of support seats (61) being arranged in the first sliding groove (34), the support seats (61) and the bottom wall of the first sliding groove (34) being connected via a second return spring (62), a sliding member being arranged between the pair of support seats (61), the sliding member protruding from the first sliding groove (34), a sliding plate (64) being fixedly connected to the support seat (61), a second sliding groove (35) being formed on the lower template (3) for the sliding plate (64) to slide up and down, the baffle plate (5) being hinged on the sliding plate (64), a fixing rod (65) being fixedly connected to the guide plate (32), and a third sliding groove (51) being formed on the baffle plate (5) for the fixing rod (65) to slide; The sliding member is a rotating roller (63), and the rotating roller (63) is rotatably disposed between a pair of support seats (61).

2. A stamping device for producing vacuum electrical contactors according to claim 1, characterized in that: A pressure sensor is provided on the baffle plate (5), and the conveying roller (4) stops conveying the copper plate when the copper plate contacts the baffle plate (5).

3. A stamping device for producing vacuum electrical contactors according to claim 2, characterized in that: The maximum distance between the bottom of the second sliding groove (35) and the sliding plate (64) is greater than the maximum distance that the rotating roller (63) protrudes from the first sliding groove (34).

4. A stamping device for producing vacuum electrical contactors according to claim 3, characterized in that: The lower template (3) is provided with an inclined groove (36) which can communicate with the groove (33), and a push plate (7) is hinged in the inclined groove (36). The lower template (3) is provided with a driving mechanism (8), and the driving mechanism (8) can drive the push plate (7) to rotate.

5. A stamping device for producing vacuum electrical contactors according to claim 4, characterized in that: The driving mechanism (8) comprises a connecting rod (81) fixedly connected to the sliding plate (64), a fourth sliding groove (37) for the connecting rod (81) to move up and down is provided on the lower template (3), and one end of the connecting rod (81) away from the sliding plate (64) is slidably connected to the push plate (7).

6. A stamping device for producing vacuum electrical contactors according to claim 5, characterized in that: The push plate (7) is provided with a fifth sliding groove (71), the fifth sliding groove (71) is in an elongated strip shape, and the connecting rod (81) can slide along the fifth sliding groove (71).

7. A stamping method for producing vacuum electrical contact, comprising the stamping equipment for producing vacuum electrical contact according to claim 5, characterized in that: include: S1, conveying the copper plate, firstly, a pair of conveying rollers (4) rotate and cooperate to convey the copper plate, and the copper plate moves above the lower template (3) under the action of the rotating rollers (63), and then the copper plate contacts the baffle (5), and the conveying rollers (4) stop rotating to convey the copper plate; S2, punching and cutting the copper plate, first the upper die seat (1) moves downward to drive the upper die plate (2), the punch (11) and the cutter (12) to move downward, the upper die plate (2) moves downward to push the rotating roller (63) to move downward, and the first return spring (21) and the second return spring (62) are compressed, the rotating roller (63) moves downward to drive the baffle plate (5) to rotate and drive the push plate (7) to rotate downward, then the rotating roller (63) stops moving downward, the baffle plate (5) cancels the obstruction to the copper plate, the upper die seat (1) continues to move downward and drives the upper end of the first return spring (21) to move downward, the upper die plate (2) moves downward under the action of the first return spring (21), The upper die seat (1) is pressed down against the copper plate, the punch (11) moves downward to punch the copper plate, and the cutter (12) cooperates with the groove (33) to cut the punched copper plate. Then, the upper die seat (1) moves upward to drive the upper die plate (2), the punch (11) and the cutter (12) to move upward. The upper die plate (2) returns to the initial position under the drive of the upper die seat (1) and the action of the restoring force of the first return spring (21). At the same time, the rotating roller (63) moves upward under the action of the restoring force of the second return spring (62). The upward movement of the rotating roller (63) drives the baffle plate (5) to rotate to restore the blocking ability of the copper plate, and drives the push plate (7) to rotate upward.

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