A strip punching tool for producing silver-nickel contacts

Abstract

The utility model relates to the technical field of metal stamping workpieces, specifically to a strip punching tool for producing silver-nickel contacts, comprising a punching table, a shaping device is arranged at one end of the upper surface of the punching table, a conveying device and a punching driving machine are arranged in the middle of the upper surface of the punching table, and the conveying device is movably connected with the punching driving machine, and a cylinder guide device is arranged on the upper surface of the punching table and at the ends of the conveying device and the shaping device; in the strip punching tool for producing silver-nickel contacts, by arranging the shaping device, the conveying device, the punching driving machine, the cylinder guide device and the stamping discharge component on the punching table, the silver-nickel extruded strip is automatically shaped, conveyed, stamped and cut, and collected during the stamping and cutting process, so as to achieve the effect of not being easy to deform, and the stamped and cut silver-nickel contacts being evenly stressed and not easy to splash.

Description

Technical Field

[0001] The utility model relates to the technical field of metal stamping workpieces, in particular to a strip punching tool for producing silver-nickel contacts. Background Art

[0002] Silver-nickel contacts are electrical contact materials made of silver and nickel alloys, commonly used in electronic equipment and electrical switches. They establish and disconnect current in circuits to achieve normal operation of electrical appliances. They have good conductivity and wear resistance. In the process of producing silver-nickel contacts, they are extruded into strips and strips, and then impacted and deformed by stamping dies to achieve cutting and breaking to generate silver-nickel contacts. When the stamped silver-nickel contacts are subjected to uneven force and splash, they are difficult to aggregate and recover.

[0003] The existing strip punching tooling for producing silver-nickel contacts has the defects of angle error and poor punching quality due to the failure to adjust the die and strip during transmission. In addition, the strip punching tooling requires a large number of stamping operations, which may cause wear on the die surface. Wear will cause the gap between the punch and the die to increase, which may make the product size not meet the requirements. In addition, the strip will bend and deform due to the force during transmission, affecting the stamping process effect. Utility Model Content

[0004] The purpose of the utility model is to provide a strip punching tool for producing silver-nickel contacts to solve the technical problems mentioned in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model discloses a strip punching tool for producing silver-nickel contacts, including a punching table, a shaping device is provided at one end of the upper surface of the punching table, a conveying device and a punching drive machine are provided in the middle of the upper surface of the punching table, and the conveying device is movably connected with the punching drive machine, a cylinder guide device is provided on the upper surface of the punching table and at the ends of the conveying device and the shaping device, a stamping discharge assembly and a discharge chute are provided at the other end of the upper surface of the punching table, and the upper surface of one end of the discharge chute is movably connected to one end of the stamping discharge assembly close to the lower surface, and silver-nickel extrusion strips are movably sleeved in the shaping device, the stamping drive machine and the stamping discharge assembly.

[0006] Optionally, the structure of the shaping device includes a bracket block, a silo is provided inside the front of the bracket block, a fixing plate groove is provided inside one end of the bracket block, a group of feeding rollers are movably connected to the upper surface of the other end of the bracket block, a limit strip and a roller connecting rod are provided inside the silo, and the roller connecting rod is movably sleeved on the limit strip, a rotating shaft is provided in the middle of the front of the roller connecting rod, a shaping roller is movably sleeved on the side of the rotating shaft, and a pitch adjusting screw is provided in the middle of the bottom surface of the roller connecting rod;

[0007] The structure of the punching table includes a bottom plate, one side of the upper surface of the bottom plate is fixedly connected to a limit plate, and the lower surfaces of both ends of the limit plate are movably connected to pad blocks through screws.

[0008] Optionally, the structure of the punching drive machine includes a driving cylinder, a power cord is fixedly connected to the side of the driving cylinder, a pneumatic tube is movably connected to the other side of the driving cylinder, a stamping plate is fixedly connected to the lower surface of the driving cylinder, a piston rod is movably connected to the four sides of one of the stamping plates, and the bottom of the piston rod is movably connected to another stamping plate, and rollers are arranged on both sides of the front of the other stamping plate, a material bin is arranged in the middle of the lower surface of one of the stamping plates, and a rod groove is opened on the side of the other stamping plate;

[0009] The structure of the conveying device includes a sliding track and a pneumatic telescopic rod; the structure of the cylinder guide device includes a cylinder barrel and a seal, and the cylinder barrel is movably connected to the seal, the sliding track is movably connected to the cylinder barrel, and the rod groove inside the other stamping plate is sleeved and connected to the pneumatic telescopic rod.

[0010] Optionally, the structure of the stamping discharge assembly includes a lower module, a discharge port is opened in the middle of the lower surface of the lower module, the lower surface of the lower module is fixedly connected to a connecting table, the upper surface of the connecting table is movably connected to an upper module through a limiting rod, the lower surface of the upper module and the lower surface of the discharge port are both provided with cutting knives, and the interior of one end of the connecting table is movably connected to a discharge slide.

[0011] Optionally, the roller rolls inside the slide track, the ends of the bracket block and the pneumatic telescopic rod are movably sleeved inside the two ends of the cylinder barrel, the width between the two feeding rollers is equal to the width of the silver-nickel extrusion strip, and the side of the feeding roller is used to shape the front and back sides of the silver-nickel extrusion strip. The distance between the upper and lower shaping rollers is equal to the thickness of the silver-nickel extrusion strip, and the material of the shaping roller is rubber, and the surface finish Ra of the contacting silver-nickel extrusion strip is ≤0.1μm, which is used to extrude the silver-nickel extrusion strip to shape the upper and lower surfaces.

[0012] Optionally, the middle of the feeding roller, the middle of the upper and lower shaping rollers, the middle of the silo and the middle of the discharge port are on the same horizontal line, so that the silver-nickel extruded strips shaped by the shaping device are passed through the silo and clamped and transported to the stamping discharge assembly for stamping under the action of the conveying device and the cylinder guide device, and the stamped silver-nickel contacts are gathered and recovered in the discharge chute. The height of the adjusting screw is equal to half the height of the silo, which is used to adjust the distance between the shaping rollers.

[0013] Optionally, the material of the feeding roller is the same as that of the shaping roller, and the sizes are equal, and it has the characteristics of gripping force, softness and corrosion resistance, and is used to shape the silver-nickel extruded strip while conveying the silver-nickel extruded strip. The limit rod can adjust the distance between the discharge port and the upper module, and the bottoms of the two cutting knives facing each other are flush with the upper and lower edges of the discharge port, and is used to drive the silver-nickel extruded strip to be stamped and cut between the cutting knives to produce silver-nickel contact products when the punching drive machine moves vertically. The material of the silo is elastic cotton, which is used to wrap the silver-nickel extruded strip to prevent friction and play a clamping role.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] In the strip punching tooling for producing silver-nickel contacts, a shaping device, a conveying device, a punching driver, a cylinder guide device and a punching discharge assembly are arranged on the punching table, so that the silver-nickel extruded strip can be automatically shaped, conveyed, punched and cut and collected during the punching and cutting process, so that the silver-nickel contacts are not easy to deform, and the punched and cut silver-nickel contacts are evenly stressed and not easy to splash. The strip can be adjusted according to the size of the silver-nickel extruded strip to expand the scope of application. The silver-nickel extruded strip will not be worn during the transmission and punching and cutting process to affect the product quality, thereby ensuring the quality and specification requirements of the punching material. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a schematic diagram of the strip punching tooling structure for producing silver-nickel contacts.

[0017] Figure 2 It is a structural schematic diagram of the shaping device of the utility model.

[0018] Figure 3 The utility model is a schematic diagram of the partial structure of a strip punching tool for producing silver-nickel contacts.

[0019] Figure 4 It is a schematic diagram of the explosion structure of the punching discharging component and the unloading slideway of the utility model.

[0020] Figure 5 It is a schematic diagram of the structure of the punching driving machine of the utility model.

[0021] The accompanying drawings are marked as follows: 1. punching table; 101. bottom plate; 102. limit plate; 103. screw; 104. padding block; 2. shaping device; 201. bracket block; 202. silo; 203. plate fixing groove; 204. feeding roller; 205. limit strip; 206. roller connecting rod; 207. pitch adjusting screw; 208. rotating shaft; 209. shaping roller; 3. conveying device; 301. slide rail; 302. pneumatic telescopic rod; 4. punching drive machine; 4 01. Driving cylinder; 402. Power cord; 403. Pneumatic tube; 404. Stamping plate; 405. Piston rod; 406. Roller; 407. Bin; 408. Rod groove; 5. Cylinder guide device; 501. Cylinder barrel; 502. Seal; 6. Stamping discharge assembly; 601. Lower module; 602. Discharge port; 603. Connecting table; 604. Limit rod; 605. Upper module; 606. Cutter; 7. Discharge slide; 8. Silver-nickel extrusion strip. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is described in detail below through specific embodiments.

[0023] Reference Figure 1-5 As shown, the utility model discloses a strip punching tooling structure for producing silver-nickel contacts, including a punching table 1, a shaping device 2 is arranged at one end of the upper surface of the punching table 1, a conveying device 3 and a punching driving machine 4 are arranged in the middle of the upper surface of the punching table 1, and the conveying device 3 is movably connected with the punching driving machine 4, a cylinder guide device 5 is arranged on the upper surface of the punching table 1 and at the ends of the conveying device 3 and the shaping device 2, a stamping discharge component 6 and a discharge chute 7 are arranged at the other end of the upper surface of the punching table 1, and the upper surface of one end of the discharge chute 7 is movably connected with one end of the stamping discharge component 6 close to the lower surface, and a silver-nickel extrusion strip 8 is movably sleeved in the shaping device 2, the stamping driving machine 4 and the stamping discharge component 6.

[0024] Preferably, the structure of the shaping device 2 includes a bracket block 201, a silo 202 is provided inside the front of the bracket block 201, a fixing plate groove 203 is provided inside one end of the bracket block 201, a group of feeding rollers 204 are movably connected to the upper surface of the other end of the bracket block 201, a limit strip 205 and a roller connecting rod 206 are provided inside the silo 202, and the roller connecting rod 206 is movably sleeved on the limit strip 205, a rotating shaft 208 is provided in the middle of the front of the roller connecting rod 206, a shaping roller 209 is movably sleeved on the side of the rotating shaft 208, and a pitch adjusting screw 207 is provided in the middle of the bottom surface of the roller connecting rod 206;

[0025] The structure of the punching table 1 includes a base plate 101, and a limiting plate 102 is fixedly connected to one side of the upper surface of the base plate 101 for limiting the position of the punching discharge assembly 6 and the unloading chute 7. The lower surfaces of both ends of the limiting plate 102 are movably connected to a pad block 104 through screws 103 for shock absorption.

[0026] Preferably, the structure of the punching drive machine 4 includes a driving cylinder 401, a power cord 402 is fixedly connected to the side of the driving cylinder 401, a pneumatic tube 403 is movably connected to the other side of the driving cylinder 401, a stamping plate 404 is fixedly connected to the lower surface of the driving cylinder 401, a piston rod 405 is movably connected to the four sides of one stamping plate 404, and the bottom of the piston rod 405 is movably connected to another stamping plate 404, and rollers 406 are arranged on both sides of the front of the other stamping plate 404, a silo 407 is arranged in the middle of the lower surface of one stamping plate 404, and a rod groove 408 is opened on the side of the other stamping plate 404;

[0027] The structure of the conveying device 3 includes a slide rail 301 and a pneumatic telescopic rod 302; the structure of the cylinder guide device 5 includes a cylinder barrel 501 and a seal 502, and the cylinder barrel 501 is movably connected to the seal 502, the slide rail 301 is movably connected to the cylinder barrel 501, and the internal rod groove 408 of another stamping plate 404 is sleeved and connected to the pneumatic telescopic rod 302.

[0028] Preferably, the structure of the stamping discharge component 6 includes a lower module 601, a discharge port 602 is opened in the middle of the lower surface of the lower module 601, the lower surface of the lower module 601 is fixedly connected to a connecting platform 603, the upper surface of the connecting platform 603 is movably connected to an upper module 605 through a limiting rod 604, the lower surface of the upper module 605 and the lower surface of the discharge port 602 are both provided with a cutter 606, and the internal movably connected to a discharge slide 7 at one end of the connecting platform 603.

[0029] Preferably, the roller 406 rolls inside the slide track 301, and the ends of the bracket block 201 and the pneumatic telescopic rod 302 are movably connected to the inside of the two ends of the cylinder barrel 501. The width between the two feeding rollers 204 is equal to the width of the silver-nickel extrusion strip 8, and the side of the feeding roller 204 is used to shape the front and back sides of the silver-nickel extrusion strip 8. The distance between the upper and lower shaping rollers 209 is equal to the thickness of the silver-nickel extrusion strip 8, and the material of the shaping roller 209 is rubber, and the surface finish Ra of the contacting silver-nickel extrusion strip 8 is ≤0.1μm, which is used to extrude the silver-nickel extrusion strip 8 to shape the upper and lower surfaces to avoid scratches while bending and affecting product quality.

[0030] Preferably, the middle of the feeding roller 204, the middle of the upper and lower shaping rollers 209, the middle of the silo 407 and the middle of the discharge port 602 are in the same horizontal straight line, which is used to pass the silver-nickel extruded strip 8 shaped by the shaping device 2 through the silo 407 and clamp it, and then transfer it to the stamping discharge assembly 6 for stamping under the action of the conveying device 3 and the cylinder guide device 5. The stamped silver-nickel contacts are collected and recovered in the unloading chute 7 to avoid splashing and deformation of the silver-nickel contacts during stamping, thereby ensuring the quality of the product during stamping and the convenience of automatic collection. The height of the pitch-adjusting screw 207 is equal to half the height of the silo 202, which is used to adjust the distance between the shaping rollers 209, and is regulated according to the thickness of the product to expand the scope of application.

[0031] Preferably, the material of the feeding roller 204 is the same as that of the shaping roller 209, and the sizes are equal. It has the characteristics of gripping force, softness and corrosion resistance, and is used to shape the silver-nickel extruded strip 8 while conveying the silver-nickel extruded strip 8. The limiting rod 604 can adjust the distance between the discharge port 602 and the upper module 605, and the bottoms of the two cutters 606 facing each other are flush with the upper and lower edges of the discharge port 602, and are used to drive the silver-nickel extruded strip 8 to be stamped and cut between the cutters 606 to produce silver-nickel contact products when the punching drive machine 4 moves vertically. The material of the silo 407 is elastic cotton, which is used to wrap the silver-nickel extruded strip 8 to prevent friction and play a clamping role.

[0032] Working principle: First, pass the silver-nickel extrusion strip 8 through the middle of the feeding roller 204 on the bracket block 201, and pass through between the shaping rollers 209 inside the silo 202. By adjusting the position of the pitch-adjusting screw 207, the connecting roller rod 206 can be adjusted in height and sleeved on the limit strip 205. At the same time, insert the silver-nickel extrusion strip 8 into the silo 407, then connect the power cord 402, and start the driving cylinder 401 and the cylinder barrel 501, so that the rod groove 408 sleeved on the pneumatic telescopic rod 302 connected to the cylinder barrel 501 drives the stamping plate 404 and the driving cylinder 401 to move in the horizontal direction, and the roller 406 on the stamping plate 404 rolls in the slide track 301. The punching drive machine 4 remains stable when moving horizontally. Secondly, after the driving cylinder 401 is started, it moves up and down in the vertical direction through the piston rod 405, so that the silver-nickel extruded strips 8 in the silo 407 are subjected to the up and down punching force of the driving cylinder 401 when entering the discharge port 602 in the lower module 601, and are cut into pieces under the pressure of the discharge port 602 and the cutter 606 in the upper module 605. As for the size of the silver-nickel contacts after stamping and cutting, it is controlled by the time of the action frequency of the driving cylinder 401, and the horizontal movement of the cylinder barrel 501 can also make the silver-nickel contacts after stamping and cutting be tilted, gathered and recovered along the discharge slide 7 connected to the connecting table 603.

[0033] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the utility model should be included in the protection scope of the utility model.

Claims

1. A strip punching tool for producing silver-nickel contacts, characterized in that: The invention comprises a punching table (1), wherein a shaping device (2) is arranged at one end of the upper surface of the punching table (1), a conveying device (3) and a punching driving machine (4) are arranged in the middle of the upper surface of the punching table (1), and the conveying device (3) is movably connected with the punching driving machine (4), a cylinder guide device (5) is arranged on the upper surface of the punching table (1) and at the ends of the conveying device (3) and the shaping device (2), a punching discharge assembly (6) and a discharge chute (7) are arranged at the other end of the upper surface of the punching table (1), and the upper surface of one end of the discharge chute (7) is movably connected with one end of the punching discharge assembly (6) close to the lower surface, and the shaping device (2), the punching driving machine (4) and the punching discharge assembly (6) are all movably sleeved with silver-nickel extrusion strips (8).

2. A strip punching tool for producing silver-nickel contacts according to claim 1, characterized in that: The structure of the shaping device (2) comprises a support block (201), a silo (202) is provided inside the front of the support block (201), a fixing plate groove (203) is provided inside one end of the support block (201), a group of feeding rollers (204) are movably connected to the upper surface of the other end of the support block (201), a limit strip (205) and a roller connecting rod (206) are provided inside the silo (202), and the roller connecting rod (206) is movably sleeved on the limit strip (205), a rotating shaft (208) is provided in the middle of the front of the roller connecting rod (206), a shaping roller (209) is movably sleeved on the side of the rotating shaft (208), and a pitch adjusting screw (207) is provided in the middle of the bottom surface of the roller connecting rod (206); The structure of the punching table (1) comprises a bottom plate (101), one side of the upper surface of the bottom plate (101) is fixedly connected to a limit plate (102), and the lower surfaces of both ends of the limit plate (102) are movably connected to a padding block (104) via screws (103).

3. A strip punching tool for producing silver-nickel contacts according to claim 2, characterized in that: The structure of the punching drive machine (4) includes a driving cylinder (401), a power line (402) is fixedly connected to the side of the driving cylinder (401), a pneumatic tube (403) is movably connected to the other side of the driving cylinder (401), a stamping plate (404) is fixedly connected to the lower surface of the driving cylinder (401), a piston rod (405) is movably connected to the four sides of one stamping plate (404), and the bottom of the piston rod (405) is movably connected to another stamping plate (404), and rollers (406) are arranged on both sides of the front of the other stamping plate (404), a material bin (407) is arranged in the middle of the lower surface of one stamping plate (404), and a rod groove (408) is opened on the side of the other stamping plate (404); The structure of the conveying device (3) includes a slide rail (301) and a pneumatic telescopic rod (302); the structure of the cylinder guide device (5) includes a cylinder barrel (501) and a sealing member (502), and the cylinder barrel (501) and the sealing member (502) are movably connected, the slide rail (301) and the cylinder barrel (501) are movably connected, and the rod groove (408) inside the other stamping plate (404) is sleeved and connected with the pneumatic telescopic rod (302).

4. The strip punching tool for producing silver-nickel contacts according to claim 3, characterized in that: The structure of the stamping discharge assembly (6) includes a lower module (601), a discharge port (602) is provided in the middle of the lower surface of the lower module (601), the lower surface of the lower module (601) is fixedly connected to a connection platform (603), the upper surface of the connection platform (603) is movably connected to an upper module (605) via a limit rod (604), the lower surface of the upper module (605) and the lower surface of the discharge port (602) are both provided with a cutter (606), and a discharge slide (7) is movably connected inside one end of the connection platform (603).

5. The strip punching tool for producing silver-nickel contacts according to claim 4, characterized in that: The roller (406) rolls inside the slide track (301), and the ends of the bracket block (201) and the pneumatic telescopic rod (302) are movably sleeved inside the two ends of the cylinder barrel (501). The width between the two feeding rollers (204) is equal to the width of the silver-nickel extrusion strip (8), and the distance between the upper and lower shaping rollers (209) is equal to the thickness of the silver-nickel extrusion strip (8). The shaping roller (209) is made of rubber, and the surface finish Ra of the surface in contact with the silver-nickel extrusion strip (8) is ≤0.1μm.

6. The strip punching tool for producing silver-nickel contacts according to claim 4, characterized in that: The middle of the feeding roller (204), the middle of the upper and lower shaping rollers (209), the middle of the silo (407) and the middle of the discharge port (602) are on the same horizontal line, and the height of the pitch-adjusting screw (207) is equal to half the height of the silo (202).

7. The strip punching tool for producing silver-nickel contacts according to claim 4, characterized in that: The material of the loading roller (204) is the same as that of the shaping roller (209), and the sizes are equal. The limiting rod (604) can adjust the distance between the discharge port (602) and the upper module (605), and the bottoms of the two cutting knives (606) facing each other are flush with the upper and lower edges of the discharge port (602). The material of the silo (407) is elastic cotton.

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