CN220992532U - Silver contact perforating device - Google Patents

Abstract

The utility model belongs to the technical field of electric switch silver contact punching equipment, in particular to a silver contact punching device, which comprises a base, wherein the base is provided with a base; the automatic feeding device comprises a support arm, a V-shaped cantilever, a sliding cylinder, a blanking sucker, a lifting cylinder, a puncher, a turntable, a workbench, a sliding chute, a clamping block, a vibrating feeding disc, a feeding groove and a vibrating feeding disc, wherein the V-shaped cantilever is fixedly arranged at one end of the support arm, the sliding cylinder is fixedly arranged at the other end of the V-shaped cantilever, the lifting sucker is fixedly arranged at the inner top end of the sliding cylinder, the puncher is fixedly connected with the front end of a piston rod of the lifting cylinder, the puncher is slidably arranged at the lower end of the sliding cylinder, a stepped hole is formed in a base, the turntable is rotatably arranged in the stepped hole, the workbench is fixedly arranged at the upper part of the turntable, the sliding chute is formed in two sides of the upper part of the workbench, the sliding table is fixedly provided with the clamping block at the top of the sliding table, the vibrating feeding disc is fixedly arranged at the other corner upper part of the base, and the feeding cylinder is fixedly arranged at the tail end of the feeding groove; through this setting, can go up the unloading voluntarily, improve work efficiency.

Description

Silver contact perforating device

Technical Field

The utility model relates to the technical field of silver contact punching equipment of electrical switches, in particular to silver contact punching equipment.

Background

The silver contact has the advantages of good conductivity, strong fatigue resistance, good ductility and weldability, and the like, and is widely applied to various electronic components such as switches, contacts, connectors, relays, connectors, and the like. Particularly has very high market application value in the industries of high performance and high added value such as new energy automobiles, chargeable electronic equipment and the like.

The punching equipment comprises a positioning assembly for positioning the silver contact, a clamping assembly for conveying the part conveyed by the conveying assembly to the positioning assembly, a punching mechanism for punching the silver contact, and a collecting mechanism for collecting punched raw materials.

Most of the existing punching equipment clamps a single workpiece, when a worker loosens a jig to take down the machined workpiece, the punching equipment is always in an idle state, and the worker needs to wait for clamping the workpiece again and then machining the next workpiece, so that the working efficiency is low; accordingly, a silver contact punching apparatus is proposed for the above-described problems.

Disclosure of utility model

In order to make up for the defects of the prior art, the prior punching equipment is used for clamping a single workpiece, when a worker loosens a jig to take down the machined workpiece, the punching equipment is always in an idle state, and the worker needs to wait for clamping the workpiece again and then machining the next workpiece, so that the problem of low working efficiency is solved.

The technical scheme adopted for solving the technical problems is as follows: the silver contact punching device comprises a base; the base is fixedly provided with a support arm at one corner, the top of the support arm is fixedly provided with a V-shaped cantilever, one end of the V-shaped cantilever is provided with a round hole, a sliding cylinder is fixedly arranged in the round hole, the other end of the V-shaped cantilever is internally fixedly provided with a blanking sucker, the inner top of the sliding cylinder is fixedly provided with a lifting cylinder, the front end of a piston rod of the lifting cylinder is fixedly connected with a puncher, the puncher is slidably arranged at the lower end of the inner part of the sliding cylinder, the base is provided with a stepped hole, a turntable is rotatably arranged in the stepped hole, four groups of struts are fixedly arranged at the upper part of the turntable at an interval of 90 degrees, the top of each strut is fixedly provided with a workbench, the center of the upper part of the workbench is provided with a placing groove, two sides of the upper part of the workbench are provided with sliding grooves, sliding tables are slidably arranged in the sliding grooves, the top of each sliding table is fixedly provided with a clamping block, the lower part of the sliding table is fixedly provided with a fixed shaft, the fixed shaft is rotatably provided with a connecting rod, the other end of the connecting rod is rotatably arranged on the fixed block through a rotating shaft, a limiting block is fixedly arranged at the center of the bottom of the workbench, a through hole is formed in the limiting block, a sliding rod is slidably arranged in the through hole, one side of the limiting block is provided with a sliding rail fixedly arranged at the bottom of the workbench, one end of the sliding rod is fixedly arranged on the fixed block, the other end of the sliding rod is fixedly provided with a sliding column, a spring is arranged between the limiting block and the sliding column and sleeved on the sliding rod, the upper part of the sliding column is welded with a sliding block, the sliding column is slidably arranged at the bottom of the sliding rail through the sliding block, the other end of the sliding column is positioned above the outer side of the turntable, a vibrating feeding disc is fixedly arranged at the other corner upper part of the base, a feeding groove is fixedly arranged on the vibrating feeding disc, one side of the vibrating feeding disc is fixedly provided with a supporting column, the top end of the supporting column is fixedly connected with the top of the feeding groove, the tail end of the feeding groove is fixedly provided with a feeding cylinder, through setting up a plurality of workstations, can punch the silver contact in the material loading, will punch the silver contact of hole simultaneously and carry out the unloading.

Preferably, the support is fixedly arranged on two sides of the bottom of the base, the rotating motor is fixedly arranged in the center of the support, the front end of the rotating shaft of the rotating motor is fixedly connected with the bottom of the turntable, and the turntable is controlled to rotate by the rotating motor to drive the workbench to move on the base.

Preferably, the feeding cylinder is fixedly arranged at the top of the feeding cylinder, a pressing plate is fixedly arranged at the front end of a piston rod of the feeding cylinder, the pressing plate is slidably arranged in the feeding cylinder, a feeding port is formed in one side, connected with the feeding groove, of the feeding cylinder, a conical feeding port is fixedly arranged at the bottom of the feeding cylinder, grooves are uniformly formed in the conical feeding port, and the feeding of silver contacts is controlled by the aid of the feeding cylinder.

Preferably, an adjusting cylinder is fixedly arranged on the upper part of the base below one side of the puncher, a wedge block is fixedly arranged at the front end of a piston rod of the adjusting cylinder, the center of the wedge block is positioned on the central axis of the plane of the turntable, the silver contacts are clamped and positioned by matching the wedge block with the sliding column, the positions of the wedge block are changed by setting the adjusting cylinder, and the silver contacts with different diameters are clamped and positioned.

Preferably, the unloading sucking disc upper portion fixed mounting has the connecting pipe, the connecting pipe other end below is provided with the collection bucket, the collection bucket top cap passes through nut fixed connection with the connecting pipe, the inside one side fixed mounting of collection bucket has the filter, it has the venthole to gather materials bucket one side, venthole outside fixed mounting has the outlet duct, outlet duct one side is provided with the air exhauster, air exhauster fixed mounting is on base upper portion, the outlet duct other end is connected on the air inlet of air exhauster, leads to setting up collection bucket and filter, when the silver contact unloading on the workstation, clear up the piece in its hole.

Preferably, a dust collecting cloth bag is arranged on the air outlet of the exhaust fan, and waste materials formed by punching are collected by arranging the dust collecting cloth bag.

The utility model has the advantages that:

1. When punching the silver contacts, the utility model starts the vibration feeding tray, the silver contacts in the vibration feeding tray are conveyed to the top of the vibration feeding tray side by side and enter the feeding groove, the front end of the feeding groove is vertical to the upper part of the silver contacts under the condition of lower part, then the silver contacts slide in the feeding groove and enter the feeding cylinder through the feeding hole, the silver contacts slide in the feeding cylinder to the upper end of the conical feeding hole, the feeding cylinder is started, the silver contacts are pressed down through the pressing plate, the silver contacts are pressed down into the placing groove in the center of the lower workbench through the conical feeding hole, the rotating motor is started, the turntable is driven to rotate, the workbench with the silver contacts placed on the turntable moves to the position right below the punching machine, and when the sliding column is contacted with the wedge-shaped block, the wedge promotes the slide column and removes to the workstation axis under the slide rail, promote the slide bar simultaneously and slide in the stopper, the slide bar promotes the fixed block and simultaneously pulls the slip table through the connecting rod and slide, when the slide column top removes to wedge top center, the clamp splice is with silver contact centre gripping at the workstation center, the spring is compressed at this in-process simultaneously, structural design that punches the silver contact through the puncher, the function of automatic unloading of going up has been realized, current drilling equipment has been solved and has mostly been the clamping single work piece, when the work piece after the processing is taken off at the staff unclamped the tool, drilling equipment is in idle state always, need wait that the staff to clamp the work piece again and process next work piece again, work efficiency is low problem, work efficiency has been improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic diagram of a punching apparatus;

FIG. 2 is a schematic diagram of a rotating device;

FIG. 3 is a schematic diagram of a perforating device;

FIG. 4 is a schematic view of a clamping device;

FIG. 5 is a schematic structural view of a feeding device;

fig. 6 is a schematic diagram of a filter arrangement.

In the figure: 1. a base; 2. a support arm; 3. a V-shaped cantilever; 4. a slide cylinder; 5. a lifting cylinder; 6. a puncher; 7. vibrating the feeding disc; 8. feeding a trough; 9. a feeding cylinder; 10. a feeding cylinder; 11. a pressing plate; 12. a bracket; 13. a work table; 14. a support post; 15. a sliding table; 16. a connecting rod; 17. a spool; 18. a slide bar; 19. a slide rail; 20. a fixed block; 21. a rotating motor; 22. a turntable; 23. clamping blocks; 24. wedge blocks; 25. adjusting a cylinder; 26. discharging a sucker; 27. a connecting pipe; 28. a nut; 29. a collecting barrel; 30. a filter plate; 31. an air outlet pipe; 32. an exhaust fan; 33. a dust collecting cloth bag; 34. a conical feeding port; 35. and (3) a spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, a silver contact punching apparatus includes a base 1; a support arm 2 is fixedly arranged at one corner of the base 1, a V-shaped cantilever 3 is fixedly arranged at the top of the support arm 2, a round hole is formed in one end of the V-shaped cantilever 3, a sliding cylinder 4 is fixedly arranged in the round hole, a discharging sucker 26 is fixedly arranged in the other end of the V-shaped cantilever, a lifting cylinder 5 is fixedly arranged at the inner top end of the sliding cylinder 4, a puncher 6 is fixedly connected to the front end of a piston rod of the lifting cylinder 5, the puncher 6 is slidably arranged at the lower end of the inner part of the sliding cylinder 4, a stepped hole is formed in the base 1, a turntable 22 is rotatably arranged in the stepped hole, four groups of struts 14 are fixedly arranged at the upper part of the turntable 22 at intervals of 90 degrees, a workbench 13 is fixedly arranged at the top of the struts 14, the center of the upper part of the workbench 13 is provided with a placing groove, both sides of the upper part of the workbench 13 are provided with sliding grooves, a sliding table 15 is slidably arranged in each sliding groove, a clamping block 23 is fixedly arranged at the top of each sliding table 15, a fixed shaft is fixedly arranged at the lower part of each sliding table 15, a connecting rod 16 is rotatably arranged on each fixed shaft, the other end of each connecting rod 16 is rotatably arranged on each fixed block 20 through a rotating shaft, a limiting block is fixedly arranged at the center of the bottom of the workbench 13, a through hole is formed in each limiting block, a sliding rod 18 is slidably arranged in each through hole, a sliding rail 19 is fixedly arranged at one side of each limiting block at the bottom of the workbench 13, one end of each sliding rod 18 is fixedly arranged on each fixed block 20, a sliding column 17 is fixedly arranged at the other end of the base, a spring 35 is arranged between a limiting block and the sliding column 17 and sleeved on a sliding rod 18, a sliding block is welded at the upper part of the sliding column 17, the sliding column 17 is slidably arranged at the bottom of a sliding rail 19 through the sliding block, the other end of the sliding column 17 is positioned above the outer side of a turntable 22, a vibration feeding disc 7 is fixedly arranged at the upper part of the other corner of the base 1, a feeding groove 8 is fixedly arranged on the vibration feeding disc 7, a supporting column is fixedly arranged at one side of the vibration feeding disc 7, the top end of the supporting column is fixedly connected with the top of the feeding groove 8, and a feeding cylinder 9 is fixedly arranged at the tail end of the feeding groove 8; when the punching device works, the existing punching device clamps a single workpiece, when a worker loosens a jig to take down the machined workpiece, the punching device is always in an idle state, the worker needs to wait for clamping the workpiece again and then machining the next workpiece, the working efficiency is low, the vibration feeding disc 7 is started, silver contacts in the vibration feeding disc 7 are conveyed to the top of the vibration feeding disc 7 side by side and enter the feeding groove 8, the front end of the feeding groove 8 stands up under the condition that the large end of the silver contacts is arranged below, then the silver contacts slide in the feeding groove 8 and enter the feeding cylinder 9 through a feeding hole, slide down to the upper end of the conical feeding hole 34 in the feeding cylinder 9, and the feeding cylinder 10 is started, the silver contact is pressed down by the pressing plate 11, the silver contact is pressed down into a placing groove in the center of the lower workbench 13 by the conical feeding hole 34, the rotating motor 21 is started to drive the turntable 22 to rotate, the workbench 13 with the silver contact placed on the turntable 22 moves to the position right below the puncher 6, when the slide column 17 is contacted with the wedge block 24, the wedge block 24 pushes the slide column 17 to move towards the central axis of the workbench 13 under the slide rail 19, meanwhile pushes the slide rod 18 to slide in the limiting block, the slide rod 18 pushes the fixed block 20 to simultaneously pull the slide table 15 to slide by the connecting rod 16, when the top end of the slide column 17 moves to the center of the top end of the wedge block 24, the clamping block 23 clamps the silver contact at the center of the workbench 13, simultaneously, the spring 35 is compressed in the process, the lifting cylinder 5 is started to push the puncher 6 to slide downwards in the sliding cylinder 4 until the puncher 6 completes punching of the silver contact, the puncher 6 is lifted, the rotating motor 21 is started to drive the turntable 22 to rotate, the punched silver contact is moved to the lower part of the blanking sucker 26, meanwhile, the workbench 13 at the rear is moved to the lower part of the puncher 6, in the process, the spring 35 is decompressed, the clamping block 23 is moved to the original position on the workbench 13, meanwhile, the clamping of the silver contact is released, the exhaust fan 32 is started, the silver contact on the workbench 13 and impurities formed during punching are sucked into the collecting barrel 29 together through the air outlet pipe 31, the collecting barrel 29, the connecting pipe 27 and the blanking sucker 26, under the suction of the suction fan 32, the silver contact is filtered in the collecting barrel 29 under the action of the filter plate 30, fine impurities are pumped out of the collecting barrel 29 by the suction fan 32 through the filter holes, and meanwhile, the impurities in the silver contact are cleaned.

The two sides of the bottom of the base 1 are fixedly provided with brackets 12, the center in the brackets 12 is fixedly provided with a rotating motor 21, and the front end of a rotating shaft of the rotating motor 21 is fixedly connected with the bottom of a turntable 22; during operation, when punching the silver contact, the silver contact is placed on the workbench 13 through the feeding cylinder 9, and after the placement is completed, the rotary motor 21 is started to drive the rotary table 22 to rotate, so that the silver contact is moved below the puncher 6, and the punching is performed.

The top of the feeding cylinder 9 is fixedly provided with a feeding cylinder 10, the front end of a piston rod of the feeding cylinder 10 is fixedly provided with a pressing plate 11, the pressing plate 11 is slidably arranged in the feeding cylinder 9, one side, connected with the feeding groove 8, of the feeding cylinder 9 is provided with a feeding hole, the bottom of the feeding cylinder 9 is fixedly provided with a conical feeding hole 34, and the conical feeding hole 34 is uniformly provided with grooves; during operation, when carrying out the material loading to the silver contact, the silver contact is through sliding to the feed inlet on last silo 8, in entering feed cylinder 9 through the feed inlet, and along feed cylinder 9 inner wall landing to the bottom under the effect of gravity, fall into toper feed inlet 34, start material loading cylinder 10, promote clamp plate 11 and slide down in feed cylinder 9, through clamp plate 11 with the silver contact through toper feed inlet 34 bottom fall into the standing groove on the workstation 13 under perpendicularly.

An adjusting cylinder 25 is fixedly arranged at the upper part of the base 1 below one side of the puncher 6, a wedge block 24 is fixedly arranged at the front end of a piston rod of the adjusting cylinder 25, and the center of the wedge block 24 is positioned on the central axis of the plane of the turntable 22; during operation, when punching the silver contact, because the silver contact diameters of different specifications are different, the silver contact is clamped through the cooperation of the wedge block 24 and the slide column 17, the distance between the front end of the wedge block 24 and the front end of the slide column 17 determines the moving distance of the clamping block 23, the adjusting cylinder 25 is started, the wedge block 24 is moved, and the distance between the wedge block 24 and the slide column 17 is adjusted.

The upper part of the blanking sucker 26 is fixedly provided with a connecting pipe 27, a collecting barrel 29 is arranged below the other end of the connecting pipe 27, the top cover of the collecting barrel 29 is fixedly connected with the connecting pipe 27 through a nut 28, a filter plate 30 is fixedly arranged on one side of the inside of the collecting barrel 29, one side of the collecting barrel 29 is provided with an air outlet hole, the outer side of the air outlet hole is fixedly provided with an air outlet pipe 31, one side of the air outlet pipe 31 is provided with an exhaust fan 32, the exhaust fan 32 is fixedly arranged on the upper part of the base 1, and the other end of the air outlet pipe 31 is connected with an air inlet of the exhaust fan 32; during operation, when punching of the silver contacts is completed, the exhaust fan 32 is started, the silver contacts on the workbench 13 are sucked into the collecting barrel 29 together with impurities formed during punching through the air outlet pipe 31, the collecting barrel 29, the connecting pipe 27 and the blanking sucker 26, the silver contacts are filtered in the collecting barrel 29 under the action of the filter plate 30 under the suction force of the exhaust fan 32, fine impurities are pumped out of the collecting barrel 29 by the exhaust fan 32 through the filter holes, and meanwhile the impurities in the silver contacts are cleaned.

A dust collection cloth bag 33 is arranged on the air outlet of the exhaust fan 32; in operation, the exhaust fan 32 sucks the filtered impurities through the air outlet pipe 31, discharges the filtered impurities into the dust collecting cloth bag 33 through the air outlet, and collects the impurities under the action of the dust collecting cloth bag 33.

The working principle is that the existing punching equipment clamps a single workpiece, when a worker loosens a jig to take down the machined workpiece, the punching equipment is always in an idle state, the worker needs to wait for clamping the workpiece again and then machining the next workpiece, the working efficiency is low, the vibration feeding disc 7 is started, silver contacts in the vibration feeding disc 7 are conveyed to the top of the vibration feeding disc 7 side by side and enter the feeding groove 8, the front end of the feeding groove 8 stands up under the condition that the large end of the silver contacts is arranged at the lower part, then the silver contacts slide in the feeding groove 8 and enter the feeding cylinder 9 through a feeding hole, the silver contacts slide down to the upper end of the conical feeding hole 34 in the feeding cylinder 9, the feeding cylinder 10 is started, the silver contacts are pressed down through the pressing plate 11, the silver contacts are pressed down to a placing groove in the center of the lower workbench 13 through the conical feeding hole 34, the rotating motor 21 is started, the turntable 22 is driven to rotate, the workbench 13 with silver contacts placed on the turntable 22 moves to the position right below the puncher 6, when the slide column 17 is contacted with the wedge block 24, the wedge block 24 pushes the slide column 17 to move to the central axis of the workbench 13 below the slide rail 19, meanwhile, the slide rod 18 pushes the fixed block 20 to slide in the limiting block, the slide table 15 is pulled by the connecting rod 16 to slide, when the top end of the slide column 17 moves to the center of the top end of the wedge block 24, the clamping block 23 clamps the silver contacts to the center of the workbench 13, meanwhile, the spring 35 is compressed in the process, the lifting cylinder 5 is started to push the puncher 6 to slide in the slide cylinder 4 until the puncher 6 finishes punching the silver contacts, the puncher 6 is lifted, the rotating motor 21 is started to drive the turntable 22 to rotate, the punched silver contacts are moved to the position below the blanking sucker 26, meanwhile, the workbench 13 at the rear is moved to the position below the puncher 6, in the process, the spring 35 is decompressed, the clamping block 23 is moved to the original position on the workbench 13, meanwhile, the clamping of the silver contact is released, the exhaust fan 32 is started, the silver contact on the workbench 13 and impurities formed during punching are sucked into the collecting barrel 29 together through the air outlet pipe 31, the collecting barrel 29, the connecting pipe 27 and the blanking sucker 26, the silver contact is filtered into the collecting barrel 29 under the action of the filter plate 30 under the suction force of the exhaust fan 32, fine impurities are pumped out of the collecting barrel 29 through the filtering hole by the exhaust fan 32, meanwhile, the impurities in the silver contact are cleaned, the exhaust fan 32 sucks the filtered impurities through the air outlet pipe 31, the impurities are discharged into the dust collecting bag 33 through the air outlet, the impurities are collected under the action of the dust collecting bag 33, the process continues until the punching is completed, the equipment power supply is closed, the collecting barrel 29 is disassembled through the nut 28, the silver contact in the collecting barrel 29 is taken out, the silver contact is installed, meanwhile, the dust collecting bag 33 is removed, the impurities in the silver contact are subjected to collection treatment, and the silver contact is reinstalled under the action of the suction of the dust collecting barrel, and the dust collecting bag 33, and the silver contact is completed.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims (6)

1. A silver contact perforating device which is characterized in that: comprises a base (1); the utility model discloses a rotary table type drilling machine, including base (1), support arm (2) are fixed mounting in one corner, V type cantilever (3) are installed at support arm (2) top fixed mounting, round hole is opened to V type cantilever (3) one end, fixed mounting has slide cylinder (4) in the round hole, and other end internal fixation has unloading sucking disc (26), top fixed mounting has lift cylinder (5) in slide cylinder (4), lift cylinder (5) piston rod front end fixedly connected with puncher (6), puncher (6) slidable mounting is at slide cylinder (4) inside lower extreme, open on base (1) has the shoulder hole, and rotating in the shoulder hole installs carousel (22), carousel (22) upper portion interval 90 fixed mounting has four sets of pillars (14), pillar (14) top fixed mounting has workstation (13), open at workstation (13) upper portion central authorities has the standing groove, workstation (13) upper portion both sides open and have the spout, all slidable mounting has slip table (15) in the spout, slip table (15) top fixed mounting has clamp block (23), slider (16) are installed at the inside lower end, pivot (16) fixed link (16) are installed through the fixed axle (16) in the fixed link, the fixed mounting is installed on the fixed top of the pivot (16), the sliding device comprises a through hole, a sliding rod (18) is arranged in the through hole in a sliding mode, a sliding rail (19) is fixedly arranged at the bottom of a workbench (13), one end of the sliding rod (18) is fixedly arranged on a fixed block (20), a sliding column (17) is fixedly arranged at the other end of the sliding rod, a spring (35) is sleeved on the sliding rod (18) between the limiting block and the sliding column (17), a sliding block is welded on the upper portion of the sliding column (17), the sliding column (17) is slidably arranged at the bottom of the sliding rail (19) through the sliding block, the other end of the sliding column (17) is located above the outer side of a turntable (22), a vibrating feeding disc (7) is fixedly arranged at the other corner upper portion of a base (1), a supporting column is fixedly arranged at one side of the vibrating feeding disc (7), the top end of the supporting column is fixedly connected with the top of the feeding disc (8), and a feeding cylinder (9) is fixedly arranged at the tail end of the feeding disc (8).

2. A silver contact perforating device as defined in claim 1, wherein: the rotary table is characterized in that brackets (12) are fixedly arranged on two sides of the bottom of the base (1), a rotary motor (21) is fixedly arranged in the center of the bracket (12), and the front end of a rotary shaft of the rotary motor (21) is fixedly connected with the bottom of the rotary table (22).

3. A silver contact perforating device as defined in claim 1, wherein: the feeding device is characterized in that a feeding cylinder (10) is fixedly arranged at the top of the feeding cylinder (9), a pressing plate (11) is fixedly arranged at the front end of a piston rod of the feeding cylinder (10), the pressing plate (11) is slidably arranged in the feeding cylinder (9), a feeding port is formed in one side, connected with the feeding groove (8), of the feeding cylinder (9), a conical feeding port (34) is fixedly arranged at the bottom of the feeding cylinder (9), and grooves are uniformly formed in the conical feeding port (34).

4. A silver contact perforating device as defined in claim 1, wherein: an adjusting cylinder (25) is fixedly arranged on the upper part of the base (1) below one side of the perforating machine (6), a wedge block (24) is fixedly arranged at the front end of a piston rod of the adjusting cylinder (25), and the center of the wedge block (24) is positioned on the central axis of the plane of the turntable (22).

5. A silver contact perforating device as defined in claim 1, wherein: unloading sucking disc (26) upper portion fixed mounting has connecting pipe (27), connecting pipe (27) other end below is provided with collection bucket (29), collection bucket (29) top cap and connecting pipe (27) pass through nut (28) fixed connection, collection bucket (29) inside one side fixed mounting has filter (30), collection bucket (29) one side is opened there is the venthole, venthole outside fixed mounting has outlet duct (31), outlet duct (31) one side is provided with air exhauster (32), air exhauster (32) fixed mounting is on base (1) upper portion, the air inlet of air exhauster (32) is connected to the outlet duct (31) other end.

6. A silver contact perforating device as defined in claim 5, wherein: a dust collecting cloth bag (33) is arranged on the air outlet of the exhaust fan (32).