CN112548787B

CN112548787B - Polishing device for electric appliance pins

Info

Publication number: CN112548787B
Application number: CN202011543216.4A
Authority: CN
Inventors: 王瑞
Original assignee: State Grid Fujian Electric Power Co Ltd; Putian Power Supply Co of State Grid Fujian Electric Power Co Ltd
Current assignee: State Grid Fujian Electric Power Co Ltd; Putian Power Supply Co of State Grid Fujian Electric Power Co Ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2022-10-21
Anticipated expiration: 2040-12-24
Also published as: CN112548787A

Abstract

The invention relates to a polishing device, in particular to an electrical appliance pin polishing device. The technical problem to be solved is as follows: the electric appliance pin polishing device can automatically polish and grind two side surfaces of the pin. The technical scheme is as follows: an electric appliance pin polishing device comprises a base, a rack, a motor, a first bracket, a second bracket, a third bracket and the like; the base is provided with a rack, a first support, a second support and a third support, wherein the rack and the second support are positioned on two sides of the base, the first support and the third support are positioned in the middle of the base, and two sides of the third support are respectively contacted with the first support and the second support. According to the invention, the grinding assembly is added, so that the device can simultaneously polish two side surfaces of the pin, and can polish the pin twice during pin polishing, thereby not only improving the processing efficiency, but also enabling the pin polishing to be more thorough.

Description

Polishing device for electric appliance pins

Technical Field

The invention relates to a polishing device, in particular to an electrical appliance pin polishing device.

Background

The existing electric appliance pin generally comprises a pin, a rubber core and an outer pipe, wherein the pin and the outer pipe are respectively matched with a central terminal and a spring sheet in an electric appliance socket to conduct and transmit electricity. Current electrical apparatus is participated in, and its outer tube is the stamping process with participating in and forms, and the surface is comparatively smooth, is unfavorable for welding process, and the fastness after the welding is also relatively poor. In order to increase the welding stability between the pin and the wire core of the outer tube and the wire, the tail end of the pin and the outer surface of the outer tube are polished to increase the surface roughness after the direct current electric appliance is assembled.

Traditional polishing mode is that the manual work is picked up and is participated in and carry out burnishing and polishing on the burnishing machine, and this kind of production mode is under the demand of present efficient production environment and the drive of the cost of labor that rises constantly for the enterprise is difficult to survive. The product quality is limited by the working process of workers, and a large amount of heavy metal dust is generated in the polishing process, so that the physical health of the workers is seriously affected.

In view of the above, there is a need for an electrical pin polishing device capable of automatically polishing and grinding two sides of a pin.

Disclosure of Invention

In order to overcome the artifical speed of participating in that polishes slowly, can only polish a face at every turn to the polishing process can produce a large amount of heavy metal dusts, is unfavorable for workman's healthy shortcoming, the technical problem who solves: the electric pin polishing device can automatically polish and grind two side surfaces of a pin.

The technical scheme is as follows: the utility model provides an electrical apparatus participates in burnishing device, which comprises a base, a machine support, including a motor, an end cap, a controller, and a cover plate, a first support, the second support, the cylinder slide, the third support, the U support, the fourth support, the subassembly of polishing, drive assembly and material loading subassembly, install the frame on the base, first support, the second support, third support and fourth support, wherein frame and second support are located the both sides of base, first support and third support are located the centre of base, the both sides of third support respectively with first support and second support contact, the motor concreties in the frame, the cylinder slide sets up the one side of keeping away from the base at the second support, the U support sets up the position that is close to the cylinder slide at the second support, the subassembly of polishing is provided with two along first support symmetry, the subassembly of polishing sets up on first support, the drive assembly is installed on second support and third support, the material loading unit mount is on first support.

Furthermore, the polishing component comprises a first rotating shaft, a first belt wheel, a second rotating shaft, a second belt wheel, a polishing belt, a third belt wheel and a first belt, wherein the first rotating shaft and the second rotating shaft are both rotatably connected to a first support, the first belt wheel is fixedly connected with the first rotating shaft, one of the first belt wheel is fixedly connected with an output shaft of the motor, the second belt wheel and the third belt wheel are both fixedly connected with the first rotating shaft, the second belt wheel is located inside the first support, the third belt wheel is located on one side, close to the motor, of the outer portion of the first support, the polishing belt is wound on the first belt wheel and the second belt wheel, and the two symmetrical third belt wheels are connected through the first belt.

Further, the transmission assembly comprises a fourth belt wheel, a fifth belt wheel, a second belt, a spline shaft, a threaded shaft, a trigger rod, a power storage nut assembly, a lock pin assembly and a reset assembly, the fourth belt wheel is fixedly connected to the output shaft of the motor, the reset assembly is slidably connected to the third support, the power storage nut assemblies are symmetrically arranged in two numbers, the power storage nut assembly is fixedly connected to the U support, the trigger rod is slidably connected to the cylindrical slide and the U support, the threaded shaft penetrates through the trigger rod in a rotating mode, the spline shaft penetrates through the fourth support, the third support, the cylinder and the threaded shaft are rotated, the fifth belt wheel is fixedly connected to one end, close to the fourth support, of the spline shaft, and the second belt is wound on the fourth belt wheel and the fifth belt wheel.

Further, hold power nut component including sliding shaft, half nut, extension spring and stir the cylinder, the sliding shaft is equipped with two side by side, sliding shaft and U support sliding connection, the inner circle is equipped with the internal thread that cooperates with the screw shaft on the half nut, the one end fixed connection of U support is kept away from with the sliding shaft to the lateral wall of half nut, the both ends of extension spring fixed connection respectively on U support and half nut, stir the cylinder at half nut upper portion fixedly connected with, stir the cylinder and touch with the trigger bar.

Furthermore, the lockpin subassembly is including latch segment, sliding pin and little spring, and the sliding pin symmetry is provided with two, the sliding pin wear to establish with the U support on, little spring housing is on the sliding pin, latch segment fixed connection is in the one end of sliding pin, the latch segment with half nut grafting cooperation, the latch segment has with the trigger lever to touch.

Further, the reset assembly comprises a rotating cylinder, a large spring and a limiting plate, the rotating cylinder is connected to the third support in a sliding mode, the rotating cylinder is connected with the threaded shaft in a rotating mode, the limiting plate is connected to the third support in a sliding mode, the limiting plate is in contact with the limiting plate 5, the large spring is sleeved on the rotating cylinder, and the large spring is in contact with the limiting plate.

Further, the material loading subassembly is including feed bin, chute, scraping wings and connect the flitch, and feed bin fixed connection is on first support, and chute fixed connection is on the feed bin, and the upper portion and the chute cooperation of scraping wings, scraping wings and the equal sliding connection of chute and feed bin connect flitch detachable to install the position that is close to the feed bin on the scraping wings.

The long round pin and the reset springs are arranged in parallel, the long round pin penetrates through the straight slideway in a sliding mode, the reset springs are sleeved on the long round pin, one end, close to the material pushing plate, of the long round pin is fixedly connected with the touch plate, and the touch plate is in contact with the material pushing plate.

The material pushing device comprises a U support, a connecting plate, a material pushing rod, a short spring and a guide plate, wherein one side of the connecting plate is fixedly connected to one side, far away from the base, of the U support, the material pushing rod penetrates through the connecting plate in a sliding mode, the material pushing rod is in sliding contact with a material pushing plate, the short spring is sleeved on the material pushing rod, and the guide plate is installed on one side, close to the third support, of the first support.

Has the beneficial effects that:

1. according to the invention, the grinding assembly is added, so that the device can simultaneously polish two side surfaces of the pin, and can polish the pin twice during pin polishing, thereby not only improving the processing efficiency, but also enabling the pin polishing to be more thorough.

2. According to the transmission assembly, the transmission assembly replaces manual hand-held pin polishing, so that iron chips generated in the polishing process are reduced, and the harm to the health of workers is reduced.

3. According to the automatic loading and unloading device, automatic loading and unloading of the pins can be realized through the loading assembly, the pushing rod, the short spring and the guide plate, so that automation of the device can be realized, and the labor cost is reduced.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Figure 2 is a schematic perspective view of a sanding assembly according to the present invention.

Fig. 3 is a schematic perspective view of the transmission assembly of the present invention.

Fig. 4 is a partial structural schematic diagram of the present invention.

FIG. 5 is a perspective view of a power nut assembly of the present invention.

FIG. 6 is a perspective view of the latch assembly of the present invention.

Fig. 7 is a schematic perspective view of the feeding assembly of the present invention.

Fig. 8 is a schematic perspective view of the connecting plate, the material pushing rod, the short spring and the guide plate according to the present invention.

Reference numerals: 1_ base, 101_ frame, 1011_ motor, 102_ first support, 103_ second support, 1031_ cylinder slide, 104_ third support, 1041 \usupport, 105_ fourth support, 2_ first rotating shaft, 201_ first pulley, 202_ second rotating shaft, 203_ second pulley, 204_ sanding belt, 205_ third pulley, 206_ first belt, 3_ fourth pulley, 301_ fifth pulley, 302_ second belt, 303_ spline shaft, 304_ screw shaft, 305_ trigger lever, 4_ slide shaft, 401_ half nut, 402_ tension spring, 403_ toggle cylinder, 5_ rotating cylinder, 501_ large spring, 502_ limit plate, 6_ lock block, 601_ slide pin, 602_ small spring, 7_ silo 701, 803_ straight slide, 702_ material pushing plate, 703_ material receiving plate, 7011_ long round pin, 7012_ touch plate, 7013_ reset spring, 8_ link plate, 8_ short spring, 802_ guide plate, 801_ guide plate.

Detailed Description

The invention is further described below with reference to the figures and examples.

Example 1

The utility model provides an electrical apparatus pin burnishing device, as shown in fig. 1, including base 1, frame 101, motor 1011, first support 102, second support 103, cylinder slide 1031, third support 104, U support 1041, fourth support 105, the subassembly of polishing, drive assembly and material loading subassembly, frame 101 is installed on base 1 upper portion, first support 102, second support 103, third support 104 and fourth support 105, wherein frame 101 is located the upper right side of base 1, second support 103 is located the upper left side of base 1, first support 102 is located the middle of the upper side of base 1, first support 102 is located the frame 101 left side, third support 104 is located the middle of base 1, third support 104 is located first support 102 left side, the both sides of third support 104 respectively with first support 102 and second support 103 contact, motor 1011 concreties in the frame 101 upside, cylinder slide 1031 sets up in the upper portion of second support 103, the left side of U support 1041 is fixed in the right side of cylinder 1031, the subassembly of polishing is provided with two first support 102 front and back symmetries and sets up on the second support 102, the subassembly of polishing is installed on second support 102, the third support 102, the material loading subassembly 102.

Participate in before polishing processing, the staff will treat that participating in of processing places in the material loading subassembly earlier, be equipped with the vibrations dish in the material loading subassembly, participate in to drop downwards in proper order waiting to process, later opening motor 1011, motor 1011 can drive the subassembly operation of polishing and drive assembly operation, when drive assembly is in the motion process, can catch the bottom one of material loading subassembly and treat the machined part, and drive this machined part motion, at this moment, treat that the machined part can be driven along the horizontal direction motion by drive assembly, the subassembly of polishing can be passed during, at this moment, the subassembly of polishing can will treat two sides of machined part and polish, when drive assembly drives the machined part and returns, can treat the machined part once more and polish, reciprocal polishing can participate in more thoroughly of polishing like this, after participating in and finishing the staff will polish participating in, then next treat that to process participate in and just can continue to process on the transport assembly, so just, it is artifical to replace, the automation of participating in is polished to the realization.

Example 2

On the basis of embodiment 1, as shown in fig. 3 to 6, the grinding assembly includes a first rotating shaft 2, a first pulley 201, a second rotating shaft 202, a second pulley 203, a grinding belt 204, a third pulley 205 and a first belt 206, the first rotating shaft 2 and the second rotating shaft 202 are both rotatably connected to the first bracket 102, the first rotating shaft is located right above the second rotating shaft 202, the first pulley 201 is fixedly connected to the first rotating shaft 2, one of the first pulleys 201 on the rear side is fixedly connected to an output shaft of a motor 1011, the second pulley 203 and the third pulley 205 are both fixedly connected to the first rotating shaft 2, the second pulley 203 is located inside the first bracket 102, the third pulley 205 is located on the right side of the first bracket 102, the grinding belt 204 is wound around the first pulley 201 and the second pulley 203, and the two symmetrical third pulleys 205 are connected through the first belt 206.

After starter motor 1011, motor 1011 can drive first pivot 2 and rotate, first pivot 2 can drive first band pulley 201 again and rotate, first band pulley 201 is through polishing belt 204 on with power transmission to second band pulley 203, second pivot 202 also can follow when second band pulley 203 rotates and rotate, second pivot 202 can drive third band pulley 205 again and rotate, two third band pulleys 205 are again connected through first belt 206 transmission, at this moment, two polishing assembly all can be moved, two symmetrical polishing belt 204 can participate in the processing of passing in its clearance and polish with treating that it participates in the motion process, just so replace the manual work to accomplish the automatic of participating in and polish.

The transmission assembly comprises a fourth belt pulley 3, a fifth belt pulley 301, a second belt 302, a spline shaft 303, a threaded shaft 304, a trigger rod 305, a power storage nut assembly, a lock pin assembly and a reset assembly, wherein the fourth belt pulley 3 is fixedly connected to the left end of an output shaft of a motor 1011, the reset assembly is slidably connected to the middle of the upper side of the third support 104, two power storage nut assemblies are symmetrically arranged, the power storage nut assemblies are fixedly connected to a U support 1041, the trigger rod 305 is slidably connected to a cylindrical slideway 1031 and the U support 1041, the threaded shaft 304 rotates to penetrate through the trigger rod 305, the spline shaft 303 penetrates through the fourth support 105, the third support 104, a rotating cylinder 5 and the threaded shaft 304, the fifth belt pulley 301 is fixedly connected to the right end of the spline shaft 303, and the second belt 302 is wound on the fourth belt pulley 3 and the fifth belt pulley 301.

After the motor 1011 starts, the fourth belt pulley 3 connected to the output shaft of the motor 1011 rotates along with the motor, then the power is transmitted to the fifth belt pulley 301 through the second belt 302, the spline shaft 303 is driven by the fifth belt pulley 301 to rotate, at this time, the threaded shaft 304 meshed with the spline shaft 303 rotates along with the spline shaft, at this time, the threaded shaft 304 is meshed with the power storage nut component, then the threaded shaft 304 drives the trigger rod 305, the reset component and part of the feeding component to move towards the direction of the polishing component, so that the pin to be processed is driven to be polished, when the trigger rod 305 touches and pushes the lock pin component, the power storage nut component is not meshed with the threaded shaft 304, at this time, the whole transmission component resets through the driving of the reset component, the workpiece to be processed is also driven to move together, then a worker can take the processed pin down, and thus the movement of the pin is driven.

The power accumulating nut assembly comprises a sliding shaft 4, a half nut 401, a tension spring 402 and a toggle cylinder 403, wherein the sliding shaft 4 is arranged in parallel up and down, the sliding shaft 4 is connected with a U support 1041 in a sliding manner, an inner ring on the half nut 401 is provided with an inner thread matched with the threaded shaft 304, the outer side wall of the half nut 401 is fixedly connected with one end of the inner side of the sliding shaft 4, two ends of the tension spring 402 are respectively fixedly connected to the U support 1041 and the half nut 401, the upper part of the half nut 401 is fixedly connected with the toggle cylinder 403, and the toggle cylinder 403 is contacted with the trigger rod 305; the locking pin assembly comprises two locking blocks 6, a sliding pin 601 and a small spring 602, the sliding pin 601 is symmetrically arranged, the sliding pin 601 penetrates through the U-shaped bracket 1041, the small spring 602 is sleeved on the sliding pin 601, the locking block 6 is fixedly connected to the right end of the sliding pin 601, the locking block 6 is in inserted fit with the half nut 401, and the locking block 6 is in contact with the trigger lever 305; reset assembly is including rotating cylinder 5, big spring 501 and limiting plate 502, rotates cylinder 5 sliding connection on third support 104, rotates cylinder 5 and is connected with the rotation of threaded shaft 304, and limiting plate 502 sliding connection is on third support 104, and limiting

plate

502 and 5 contact, big spring 501 cover are on rotating cylinder 5, and big spring 501 and limiting plate 502 contact.

When the threaded shaft 304 is engaged with the half nuts 401, the threaded shaft 304 will thread through the half nuts 401, when the threaded shaft 304 drives the trigger lever 305 to touch the locking block 6, the locking block 6 will slide along the sliding pin 601, at this time, the small spring 602 is compressed, until the locking block 6 is out of contact with the half nuts 401, the locking block 6 will not lock the half nuts 401, at this time, the two separated half nuts 401 will be pulled to both sides by the respective connected tension springs 402, so that the two half nuts 401 will be separated, at this time, the threaded shaft 304 will not be engaged with the half nuts 401 any more, when the half nuts 401 are pulled by the tension springs 402, the sliding shaft 4 will slide along the U bracket 1041, when the distance is slid, the limit ring on the rotating cylinder 5 will be clamped on the U bracket 1041, so that the half nuts 401 will not move to both sides any more, at this moment, the big spring 501 which is squeezed rebounds quickly to drive the threaded shaft 304 and the trigger rod 305 to move towards the opposite direction of the polishing assembly, the polished plug pins can also penetrate out of the polishing assembly to achieve polishing again, when the trigger rod 305 is driven to return, the triangular block on the trigger rod 305 can touch the toggle cylinders 403 on the half nuts 401, the two toggle cylinders 403 driven by the triangular block can be drawn close to the middle, the half nuts 401 can be driven to move towards the middle, so that the half nuts 401 can be attached to each other, the locking block 6 can be matched with the threaded shaft 304 in an inserted mode, the half nuts 401 can be locked, the small spring 602 and the big spring 501 can be expanded again, the tension spring 402 can be stretched again, and the plug pins can be driven to enter and exit the polishing assembly.

Example 3

On the basis of embodiment 2, as shown in fig. 7-8, the feeding assembly includes a bin 7, a straight slideway 701, a pushing plate 702 and a receiving plate 703, the bin 7 is fixedly connected to the left side of the first support 102, the straight slideway 701 is fixedly connected to the bin 7, the upper portion of the pushing plate 702 is matched with the straight slideway 701, the pushing plate 702 is slidably connected with both the straight slideway 701 and the bin 7, and the receiving plate 703 is detachably mounted on the pushing plate 702 at a position close to the bin 7; the push plate type push plate mechanism further comprises three long round pins 7011, a touch plate 7012 and reset springs 7013, the three long round pins 7011 and the three reset springs 7013 are arranged side by side, the long round pins 7011 penetrate through the straight slide ways 701 in a sliding mode, the reset springs 7013 are sleeved on the long round pins 7011, the touch plate 7012 is fixedly connected to the right end of the long round pins 7011, and the touch plate 7012 is in contact with the push plate 702.

The bin 7 is internally provided with a vibration disc, the pins can sequentially fall downwards through the action of the vibration disc, when the pushing plate 702 moves towards the direction of the polishing assembly along the straight slideway 701, the receiving plate 703 can receive the pins falling from the bin 7, thereby driving the pins to enter the polishing assembly, when the pushing plate 702 moves towards the opposite direction of the polishing assembly along the straight slideway 701, when the pins pass through the blanking port at the lower end of the bin 7, the blanking port of the bin 7 can be opened, after the processed pins are taken down, the workpiece can fall onto the receiving plate 703, when the pushing plate 702 returns, the pushing plate 702 touches the touch plate 7012, the pushing plate 702 can press and lock the reset spring 7013, at the moment, the touch plate 7012 is matched with the reset spring 7013 to play a buffering role on the pushing plate 702, and thus the blanking and the feeding can be completed.

The material pushing device further comprises a connecting plate 8, a material pushing rod 801, a short spring 802 and a guide plate 803, wherein the lower side of the connecting plate 8 is fixedly connected to the upper side of the U-shaped support 1041, the material pushing rod 801 penetrates through the connecting plate 8 in a sliding mode, the front side of the material pushing rod 801 is in sliding contact with the rear side face of the material pushing plate 702, the short spring 802 is sleeved on the material pushing rod 801, and the guide plate 803 is installed on the left front side of the first support 102.

When the material pushing plate 702 moves towards the polishing assembly, the material pushing plate 702 can press the material pushing rod 801, and the material pushing rod 801 can press the shortening spring 802, at this time, the material pushing rod 801 can slide on the material pushing plate 702, when the material pushing plate 702 moves towards the opposite direction of the polishing assembly, the material receiving plate 703 is arranged on the material pushing plate 702, the material pushing rod 801 can be separated from the material pushing plate 702, at this time, the accumulated short spring 802 can push the material pushing rod 801 to push the processed pins on the material receiving plate 703 to the guide plate 803, and then the pins slide from the guide plate 803, so that the material returning of the finished product is completed.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. An electric appliance pin polishing device comprises a base (1), a frame (101), a motor (1011), a first bracket (102), a second bracket (103), a cylindrical slideway (1031), a third bracket (104), a U bracket (1041) and a fourth bracket (105), wherein the frame (101), the first bracket (102), the second bracket (103), the third bracket (104) and the fourth bracket (105) are arranged on the base (1), wherein the rack (101) and the second support (103) are positioned at two sides of the base (1), the first support (102) and the third support (104) are positioned in the middle of the base (1), two sides of the third support (104) are respectively contacted with the first support (102) and the second support (103), the motor (1011) is fixedly connected on the rack (101), the cylindrical slideway (1031) is arranged at one side of the second support (103) far away from the base (1), the U-shaped support (1041) is arranged at the position of the second support (103) close to the cylindrical slideway (1031), the grinding and feeding device is characterized by further comprising two grinding assemblies, two transmission assemblies and two feeding assemblies, wherein the two grinding assemblies are symmetrically arranged along the first support (102), the grinding assemblies are arranged on the first support (102), the transmission assemblies are arranged on the second support (103) and the third support (104), and the feeding assemblies are arranged on the first support (102);

the grinding assembly comprises a first rotating shaft (2), a first belt wheel (201), a second rotating shaft (202), a second belt wheel (203), grinding belts (204), third belt wheels (205) and a first belt (206), wherein the first rotating shaft (2) and the second rotating shaft (202) are rotatably connected to a first support (102), the first belt wheel (201) is fixedly connected with the first rotating shaft (2), one of the first belt wheels (201) is fixedly connected with an output shaft of a motor (1011), the second belt wheel (203) and the third belt wheel (205) are fixedly connected with the first rotating shaft (2), the second belt wheel (203) is positioned inside the first support (102), the third belt wheel (205) is positioned on one side, close to the motor (1011), of the outer part of the first support (102), the grinding belts (204) are wound on the first belt wheel (201) and the second belt wheel (203), and two symmetrical third belt wheels (205) are connected through the first belt (206);

the transmission assembly comprises a fourth belt pulley (3), a fifth belt pulley (301), a second belt pulley (302), a spline shaft (303), a threaded shaft (304), a trigger rod (305), a power storage nut assembly, a lock pin assembly and a reset assembly, wherein the fourth belt pulley (3) is fixedly connected to an output shaft of a motor (1011), the reset assembly is slidably connected to a third support (104), two power storage nut assemblies are symmetrically arranged, the power storage nut assembly is fixedly connected to a U support (1041), the trigger rod (305) is slidably connected to a cylindrical slide way (1031) and the U support (1041), the threaded shaft (304) rotates to penetrate through the trigger rod (305), the spline shaft (303) penetrates through the fourth support (105), the third support (104), a rotating cylinder (5) and the threaded shaft (304), the fifth belt pulley (301) is fixedly connected to one end, close to the fourth support (105), of the spline shaft (303), and the second belt pulley (302) is wound on the fourth belt pulley (3) and the fifth belt pulley (301);

the power storage nut assembly comprises two sliding shafts (4), half nuts (401), tension springs (402) and a toggle cylinder (403), the two sliding shafts (4) are arranged side by side, the sliding shafts (4) are slidably connected with a U support (1041), inner rings on the half nuts (401) are provided with internal threads matched with a threaded shaft (304), the outer side walls of the half nuts (401) are fixedly connected with one ends, far away from the U support (1041), of the sliding shafts (4), the two ends of the tension springs (402) are fixedly connected to the U support (1041) and the half nuts (401) respectively, the upper portions of the half nuts (401) are fixedly connected with the toggle cylinder (403), and the toggle cylinder (403) is in contact with a trigger rod (305);

the locking pin assembly comprises two locking blocks (6), a sliding pin (601) and a small spring (602), the sliding pin (601) is symmetrically arranged, the sliding pin (601) penetrates through the U-shaped support (1041), the small spring (602) is sleeved on the sliding pin (601), the locking blocks (6) are fixedly connected to one end of the sliding pin (601), the locking blocks (6) are in inserted fit with the half nuts (401), and the locking blocks (6) are in contact with the trigger rod (305);

the reset assembly comprises a rotating cylinder (5), a large spring (501) and a limiting plate (502), the rotating cylinder (5) is connected to the third support (104) in a sliding mode, the rotating cylinder (5) is connected with the threaded shaft (304) in a rotating mode, the limiting plate (502) is connected to the third support (104) in a sliding mode, the limiting plate (502) is in contact with the rotating cylinder (5), the large spring (501) is sleeved on the rotating cylinder (5), and the large spring (501) is in contact with the limiting plate (502);

the feeding assembly comprises a stock bin (7), a straight slideway (701), a material pushing plate (702) and a material receiving plate (703), the stock bin (7) is fixedly connected to the first support (102), the straight slideway (701) is fixedly connected to the stock bin (7), the upper portion of the material pushing plate (702) is matched with the straight slideway (701), the material pushing plate (702) is connected with the straight slideway (701) and the stock bin (7) in a sliding mode, and the material receiving plate (703) is detachably mounted on the material pushing plate (702) and close to the position of the stock bin (7).

2. The electric appliance pin polishing device according to claim 1, further comprising three long round pins (7011), a touch plate (7012) and a return spring (7013), wherein the long round pins (7011) and the return spring (7013) are arranged side by side, the long round pins (7011) slide through the straight slide way (701), the return spring (7013) is sleeved on the long round pins (7011), the touch plate (7012) is fixedly connected to one end of the long round pins (7011) close to the push plate (702), and the touch plate (7012) is in contact with the push plate (702).

3. The electrical appliance pin polishing device according to claim 2, further comprising a connecting plate (8), a material pushing rod (801), a short spring (802) and a guide plate (803), wherein one side of the connecting plate (8) is fixedly connected to one side of the U-shaped bracket (1041) far away from the base (1), the material pushing rod (801) slides through the connecting plate (8), the material pushing rod (801) is in sliding contact with the material pushing plate (702), the short spring (802) is sleeved on the material pushing rod (801), and the guide plate (803) is installed on one side, close to the third bracket (104), of the first bracket (102).