CN210147788U

CN210147788U - Automatic chamfering machine

Info

Publication number: CN210147788U
Application number: CN201921036721.2U
Authority: CN
Inventors: 赖泽民; 赖新优; 赖芳宇
Original assignee: Guangzhou Youchuang Intelligent Equipment Co Ltd
Current assignee: Guangzhou Youchuang Intelligent Equipment Co Ltd
Priority date: 2019-07-04
Filing date: 2019-07-04
Publication date: 2020-03-17
Anticipated expiration: 2029-07-04

Abstract

The utility model discloses an automatic chamfering machine, the output shaft of intermittent type graduator with press from both sides the material carousel and connect, intermittent type graduator is used for driving to press from both sides the material carousel and rotates certain angle, evenly be provided with the hole groove of placing of a plurality of placing the magnetic core work piece on the clamp material carousel and be used for pressing from both sides the clamping device who places the magnetic core work piece in the hole groove, clamping device's top is provided with the gyro wheel, be provided with on the outer loop of clamp material carousel and press from both sides the material belt winding and be in on the gyro wheel, swing arm device is used for upwards lifting up the clamping device who presss from both sides on the material carousel to make and place the magnetic core work piece on placing the hole groove not compressed tightly, the transport end of feed plate is just to placing the hole groove on one of the clamp material carousel, the both sides of clamp material carousel are provided with first chamfer grinding device and second chamfer grinding device respectively, first chamfer grinding device and second chamfer grinding device are just to placing one of them .

Description

Automatic chamfering machine

Technical Field

The utility model relates to a grinding device especially relates to an automatic chamfering machine.

Background

Along with the development of economy, the popularization rate of computers and household appliances in the world is higher and higher, so that the using amount of anti-interference soft magnetic ferrite magnetic cores is larger and larger, the yield of the magnetic cores in China occupies more than half of the yield in the world, for a long time, after cylindrical RH and H magnetic cores and annular magnetic ring products are pressed by a forming machine, burrs are generated on the inner circle and the outer circle of two end surfaces, the burrs of the inner circle are removed by a manual chamfering method, the manual chamfering method is that a motor is installed on a table top, then a conical grinding wheel is installed on the motor, a worker holds the magnetic core by hand to sleeve the inner hole of the magnetic core on the rotating conical grinding wheel to complete inner hole chamfering, and the magnetic core is turned over to the other end surface by turning over one end surface, the manual inner angle chamfering method is not only slow in speed, large in labor intensity and poor in safety, the most important defect is that the quality and the consistency of the product are poor, and the rough selvedge of the excircle at the two ends of the magnetic core can not be removed together, the traditional method for removing the rough selvedge of the excircle comprises the steps of manually chamfering the inner angle, sintering the magnetic core, putting the sintered magnetic core into a ball mill, adding small stones into the sintered magnetic core for vibration grinding together, and then cleaning the sintered magnetic core by ultrasonic waves, so that a large amount of product unfilled corners can be caused in the plurality of procedures, the appearance is damaged, and the speed is low.

An automatic chamfering machine with Chinese patent application number 200820000273.6 comprises a frame, wherein a feeding device and a discharging device are arranged on the frame, a base is arranged on the frame, a turntable main shaft is arranged on the base, a clamping turntable is fixed on the turntable main shaft, and the conveying end of the feeding device is aligned to the surface of the clamping turntable; axial chamfer grinding devices on the left side and the right side are arranged on the machine frame; the material clamping rotary table is provided with a plurality of placing hole grooves for pre-chamfering parts, the conveying end of the feeding device is opposite to one of the placing hole grooves, the other side of the placing hole groove is provided with a material baffle plate, and the axial chamfering grinding devices on the left side and the right side are respectively opposite to one placing hole groove; the material clamping rotary table is provided with a clamping device for placing a pre-chamfering part in the hole groove; an intermittent indexing device is arranged and fixed on the base, and an output shaft of the intermittent indexer is a main shaft of the turntable; a discharging device is arranged below the material clamping turntable; and a control box is arranged and is in line connection with the feeding device, the axial chamfer grinding devices on the two sides, the clamping device, the intermittent graduator and the discharging device. The conveying end of the feeding device of the patent is aligned to the disc surface of the material clamping turntable, the feeding conveyer belt is driven by a feeding conveyer belt motor to rotate to send the magnetic core into the V-shaped groove of the material clamping turntable, when the end surface of the magnetic core touches the baffle plate on the other side of the V-shaped groove, the operation of the feeding conveyer belt is stopped; feeding inaccuracy appears very easily directly through the feeding conveyer belt with the magnetic core to the feeding mode in "V" shape groove, makes the magnetic core landing, and when the magnetic core was polished, the magnetic core appeared very easily with the unstable condition of "V" shape groove block to lead to the magnetic core displacement to appear at the in-process of polishing.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide an automatic chamfering machine, it is through being provided with swing arm device and blevile of push, blevile of push is used for pushing away the magnetic core work piece to placing the hole inslot, and swing arm device is used for upwards lifting up the clamping device on the double-layered material carousel to the magnetic core work piece of placing on placing the hole groove is not compressed tightly, will place originally simultaneously and place this magnetic core work piece of placing the hole inslot and not being compressed tightly and push away to down on the silo.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an automatic chamfering machine comprises a material clamping turntable, an intermittent graduator, a feeding plate, a feeding device, a swing arm device, a material pushing device and a discharging groove, wherein an output shaft of the intermittent graduator is connected with the material clamping turntable, the intermittent graduator is used for driving the material clamping turntable to rotate for a certain angle, a plurality of placing hole grooves for placing magnetic core workpieces and clamping devices for clamping the magnetic core workpieces in the placing hole grooves are uniformly arranged on the material clamping turntable, rollers are arranged at the top of the clamping devices, a material pressing belt is arranged on an outer ring of the material clamping turntable and wound on the rollers, the feeding device is used for conveying the magnetic core workpieces to the feeding plate, the swing arm device is used for lifting the clamping devices on the material clamping turntable upwards so as to prevent the magnetic core workpieces placed on the placing hole grooves from being pressed, and the conveying end of the feeding plate is opposite to one of the placing hole grooves on the material clamping turntable, the pushing device is used for pushing the magnetic core workpiece into the placing hole groove and pushing the magnetic core workpiece originally placed in the placing hole groove onto the discharging groove; the two sides of the clamping turntable are respectively provided with a first chamfer grinding device and a second chamfer grinding device, the first chamfer grinding device and the second chamfer grinding device are respectively opposite to one of the placing hole grooves on the clamping turntable, and the first chamfer grinding device and the second chamfer grinding device are used for grinding a magnetic core workpiece.

Furthermore, the automatic chamfering machine further comprises a control box, and the intermittent indexer, the feeding device, the swing arm device, the material pushing device, the first chamfering grinding device and the second chamfering grinding device are respectively connected with the control box.

Furthermore, the material pushing device comprises a material pushing cylinder and a material pushing block, the material pushing cylinder is connected with the control box, a piston rod of the material pushing cylinder is connected with the material pushing block, and the material pushing cylinder is used for pushing the material pushing block to move forwards so as to push the magnetic core workpiece into the placing hole groove.

Further, the swing arm device comprises a swing arm motor, a swing arm rod and a swing arm block, the swing arm motor is connected with the control box, a protrusion is arranged on the swing arm block, one end of the swing arm rod is connected with the swing arm block, the other end of the swing arm rod is connected with an output shaft of the swing arm motor, and the swing arm motor is used for driving the swing arm rod to rotate so as to drive the swing arm block and the protrusion to rotate, so that the clamping device on the material clamping turntable is lifted.

Furthermore, the automatic chamfering machine further comprises a first polishing gas and a first workpiece pushing device cylinder, wherein the first workpiece pushing device is used for pushing the magnetic core workpiece, the first workpiece pushing device comprises a first workpiece pushing plate and a first workpiece connecting rod, one end of the first workpiece connecting rod is connected with the first workpiece pushing plate, and the other end of the first workpiece connecting rod is connected with the first chamfering polishing device; the piston rod of the first polishing cylinder is connected with the first chamfer polishing device, the first polishing cylinder is used for pushing the first chamfer polishing device and the first workpiece pushing device to move back and forth, the first chamfer polishing device comprises a first polishing motor and a first polishing blade, the output end of the first polishing motor is connected with the first polishing blade, the first polishing motor is used for driving the first polishing blade to rotate, and the first polishing cylinder and the first polishing motor are respectively connected with the control box.

Furthermore, the automatic chamfering machine further comprises a second grinding cylinder and a second workpiece pushing device, the second workpiece pushing device is used for pushing the magnetic core workpiece, the second workpiece pushing device comprises a second workpiece pushing plate and a second workpiece connecting rod, one end of the second workpiece connecting rod is connected with the second workpiece pushing plate, and the other end of the second workpiece connecting rod is connected with the second chamfering grinding device; the piston rod of the second polishing cylinder is connected with the second chamfer polishing device, the second polishing cylinder is used for pushing the second chamfer polishing device and the second workpiece pushing device to move back and forth, the second chamfer polishing device comprises a second polishing motor and a second polishing blade, the output end of the second polishing motor is connected with the second polishing blade, the second polishing motor is used for driving the second polishing blade to rotate, and the second polishing cylinder and the second polishing motor are respectively connected with the control box.

Further, a feeding chute is arranged on the feeding device, and the feeding chute is obliquely arranged.

Further, the inclination angle of the feeding chute is 10-30 °.

Furthermore, the placing hole groove is a V-shaped groove, and the thickness of the material clamping rotary disc is smaller than that of the magnetic core workpiece.

Furthermore, clamping device includes left clamp plate, right clamp plate, back shaft and briquetting, left clamp plate and right clamp plate set up respectively in press from both sides the material carousel, the briquetting set up in between left clamp plate and the right clamp plate, left clamp plate and right clamp plate respectively with the briquetting is connected, connect through the back shaft between left clamp plate, the right clamp plate and the material carousel of pressing from both sides.

Compared with the prior art, the utility model has the advantages that the output shaft of the intermittent graduator is connected with the material clamping turntable, the intermittent graduator is used for driving the material clamping turntable to rotate for a certain angle, the material clamping turntable is evenly provided with a plurality of placing hole grooves for placing magnetic core workpieces and clamping devices for clamping the magnetic core workpieces in the placing hole grooves, the top of each clamping device is provided with a roller, the outer ring of the material clamping turntable is provided with a material pressing belt, the material pressing belt is arranged on the roller, the material feeding device is used for conveying the magnetic core workpieces to the feeding plate, the swing arm device is used for lifting the clamping devices on the material clamping turntable upwards, thereby the magnetic core workpieces placed on the placing hole slots are not pressed tightly, the conveying end of the feeding plate is over against one of the placing hole slots on the material clamping turntable, the material pushing device is used for pushing the magnetic core workpieces into the placing hole slots, meanwhile, the magnetic core workpiece which is originally placed in the placing hole groove and is not pressed is pushed onto the discharging groove; a first chamfer polishing device and a second chamfer polishing device are respectively arranged on two sides of the clamping turntable, the first chamfer polishing device and the second chamfer polishing device are respectively opposite to one placing hole groove on the clamping turntable, and the first chamfer polishing device and the second chamfer polishing device are used for polishing a magnetic core workpiece; the utility model discloses a be provided with clamping device, swing arm device and blevile of push, clamping device can compress tightly the magnetic core work piece, prevent that the magnetic core work piece from appearing the displacement at the in-process of polishing, swing arm device can upwards lift clamping device, thereby make and place the magnetic core work piece on placing the hole groove not compressed tightly, blevile of push can push away the magnetic core work piece to placing the hole inslot, will place originally simultaneously and place on this places the magnetic core work piece that the hole inslot is not compressed tightly pushes away to lower silo, thereby make the feeding of magnetic core work piece more accurate.

Drawings

The following detailed description of embodiments of the invention is provided with reference to the accompanying drawings, in which:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partially enlarged view of a portion a of fig. 1.

Fig. 3 is a schematic structural view of the material clamping turntable of the present invention.

Fig. 4 is a schematic structural view of the swing arm device of the present invention.

In the figure: 1-material clamping rotary table, 2-material feeding plate, 3-swing arm device, 4-material discharging groove, 5-first chamfer angle polishing device, 6-second chamfer angle polishing device, 8-material pushing device, 11-placing hole groove, 12-clamping device, 13-material pressing belt, 31-swing arm motor, 32-swing arm rod, 33-swing arm block, 34-protrusion, 71-material feeding sliding groove and 121-roller.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-4, the automatic chamfering machine comprises a material clamping turntable 1, an intermittent indexer, a feeding plate 2, a feeding device, a swing arm device 3, a material pushing device 8 and a discharging groove 4, wherein an output shaft of the intermittent indexer is connected with the material clamping turntable 1, and the intermittent indexer is used for driving the material clamping turntable 1 to rotate by a certain angle.

Specifically, a plurality of placing hole grooves 11 for placing magnetic core workpieces and a clamping device 12 for clamping the magnetic core workpieces in the placing hole grooves 11 are uniformly arranged on the material clamping rotary table 1, rollers 121 are arranged at the top of the clamping device 12, a material pressing belt 13 is arranged on an outer ring of the material clamping rotary table 11, and the material pressing belt 13 is wound on the rollers 121.

Specifically, clamping device 12 includes left clamp plate, right clamp plate, back shaft and briquetting, left side clamp plate and right clamp plate set up respectively in press from both sides the both sides of material carousel 1, the briquetting set up in between left side clamp plate and the right clamp plate, left side clamp plate and right clamp plate respectively with the briquetting is connected, connect through the back shaft between left side clamp plate, the right clamp plate and the material carousel 1 of pressing from both sides. Preferably, a clamping turntable through hole is formed in the clamping turntable 1, a left pressing plate through hole is formed in the left pressing plate, a right pressing plate through hole is formed in the right pressing plate, and the supporting shaft sequentially penetrates through the left pressing plate through hole, the clamping turntable through hole and the right pressing plate through hole to connect the left pressing plate, the right pressing plate and the clamping turntable together.

Specifically, the feeding device is used for conveying the magnetic core workpiece to the feeding plate 2, the swing arm device 3 is used for lifting the clamping device 12 on the material clamping rotary table 1 upwards, so that the magnetic core workpiece placed on the placing hole groove 11 is not pressed, the conveying end of the feeding plate 2 is over against one of the placing hole grooves 11 on the material clamping rotary table 1, and the material pushing device 8 is used for pushing the magnetic core workpiece into the placing hole groove 11 and pushing the magnetic core workpiece originally placed in the placing hole groove 11 onto the discharging groove 4.

Specifically, the placing hole groove 11 is a V-shaped groove, and the thickness of the material clamping rotary table 1 is smaller than that of the magnetic core workpiece, so that the magnetic core workpiece can be chamfered at the time of chamfering.

Specifically, the intermittent indexer drives the material clamping rotary disc 1 to rotate intermittently, and rotates one station at a time, namely, the material clamping rotary disc jumps from one placing hole groove 11 to the next adjacent placing hole groove 11.

Specifically, the both sides of pressing from both sides material carousel 1 are provided with first chamfer grinding device 5 and second chamfer grinding device 6 respectively, first chamfer grinding device 5 and second chamfer grinding device 6 are just respectively placing hole groove 11 to one of them on pressing from both sides material carousel 1, and first chamfer grinding device 5 and second chamfer grinding device 6 are used for polishing placing the magnetic core work piece placing hole groove 11.

Specifically, this embodiment still includes the control box, intermittent type graduator, loading attachment, swing arm device 3, blevile of push 8, first chamfer grinding device 5 and second chamfer grinding device 6 are connected with the control box respectively.

Specifically, the material pushing device 8 comprises a material pushing cylinder and a material pushing block, the material pushing cylinder is connected with the control box, a piston rod of the material pushing cylinder is connected with the material pushing block, and the material pushing cylinder is used for pushing the material pushing block to move forwards so as to push the magnetic core workpiece into the placing hole groove 11.

Specifically, the swing arm device 3 includes swing arm motor 31, swing arm pole 32 and swing arm piece 33, swing arm motor 31 with the control box is connected, be provided with protruding 34 on the swing arm piece 33, swing arm pole 32 one end with swing arm piece 33 is connected, the other end with swing arm motor 31's output shaft, swing arm motor 31 are used for driving swing arm pole 32 and rotate to drive swing arm piece 33 and protruding 34 and rotate, thereby lift clamping device 12 on the material carousel 1 that presss from both sides.

Specifically, the present embodiment further includes a first grinding cylinder and a first workpiece pushing device, the first workpiece pushing device is used for pushing the magnetic core workpiece, the first workpiece pushing device comprises a first workpiece push plate and a first workpiece connecting rod, one end of the first workpiece connecting rod is connected with the first workpiece push plate, the other end of the first workpiece connecting rod is connected with the first chamfer grinding device 5, a piston rod of the first grinding cylinder is connected with the first chamfer grinding device 5, the first polishing cylinder is used for pushing the first chamfer polishing device 5 and the first workpiece pushing device to move back and forth, the first chamfer grinding device 5 comprises a first grinding motor and a first grinding blade, the output end of the first grinding motor is connected with the first grinding blade, the first grinding motor is used for driving the first grinding blade to rotate, and the first grinding cylinder and the first grinding motor are respectively connected with the control box.

Specifically, the present embodiment further includes a second polishing cylinder and a second workpiece pushing device, where the second workpiece pushing device is configured to push the magnetic core workpiece, the second workpiece pushing device includes a second workpiece pushing plate and a second workpiece connecting rod, one end of the second workpiece connecting rod is connected to the second workpiece pushing plate, and the other end of the second workpiece connecting rod is connected to the second chamfer polishing device 6; the piston rod of the second polishing cylinder is connected with the second chamfer polishing device 6, the second polishing cylinder is used for pushing the second chamfer polishing device 6 and the second workpiece pushing device to move back and forth, the second chamfer polishing device 6 comprises a second polishing motor and a second polishing blade, the output end of the second polishing motor is connected with the second polishing blade, the second polishing motor is used for driving the second polishing blade to rotate, and the second polishing cylinder and the second polishing motor are respectively connected with the control box.

Specifically, the feeding device is provided with a feeding chute 71, and the feeding chute 71 is obliquely arranged. Preferably, the inclination angle of the feeding chute 71 is 10 ° to 30 °, the magnetic core is pressed out from the forming machine and then enters the feeding chute 71, and the magnetic core slides into the feeding plate 2 on the feeding chute 71 by self weight.

The working principle of the embodiment is as follows:

the magnetic core slides into the feeding plate 2 through self-weight on the feeding chute 71, the intermittent indexer drives the material clamping turntable 1 to intermittently rotate, when the material clamping turntable 1 stops, the swing arm motor 31 drives the swing arm rod 32 to rotate so as to drive the swing arm block 33 and the protrusion 34 to rotate, so as to lift the clamping device 12 on the material clamping turntable 1, so that the magnetic core workpiece placed on the placing hole groove 11 is not pressed, the material pushing cylinder pushes the material pushing block to move forwards so as to push the magnetic core workpiece into the placing hole groove 11, and simultaneously pushes the magnetic core workpiece originally placed in the placing hole groove 11 to the discharging groove 4, the first polishing cylinder pushes the first chamfer polishing device 5 and the first workpiece pushing device to move forwards, the first workpiece pushing device adjusts the position of the magnetic core workpiece, so that the depth of each chamfer of the magnetic core workpiece is consistent, the first polishing motor drives the first polishing blade to rotate so as to polish one surface of the magnetic core workpiece, after the first grinding blade finishes grinding, the first grinding cylinder pushes the first chamfer grinding device 5 to move backwards, so that the first chamfer grinding device 5 is reset; the second polishing cylinder pushes the second chamfer polishing device 6 and the second workpiece pushing device to move forwards, the second workpiece pushing device adjusts the position of the magnetic core workpiece, the second polishing motor drives the second polishing blade to rotate, so that the other side of the magnetic core workpiece is polished, and after the second polishing blade is polished, the second polishing cylinder pushes the second chamfer polishing device 6 to move backwards, so that the second chamfer polishing device 6 is reset; and the polished magnetic core workpiece continues to rotate to a blanking station along with the material clamping turntable 1 for blanking.

The embodiment can not only chamfer, polish and process the magnetic core workpiece, but also chamfer, polish and process other cylindrical or annular workpieces made of any materials.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.

Claims

1. The utility model provides an automatic beveler which characterized in that: the magnetic core feeding device comprises a clamping rotary table (1), an intermittent graduator, a feeding plate (2), a feeding device, a swing arm device (3), a pushing device (8) and a discharging groove (4), wherein an output shaft of the intermittent graduator is connected with the clamping rotary table (1), the intermittent graduator is used for driving the clamping rotary table to rotate for a certain angle, a plurality of placing hole grooves (11) for placing magnetic core workpieces and a clamping device (12) for clamping the magnetic core workpieces in the placing hole grooves (11) are uniformly arranged on the clamping rotary table (1), a roller (121) is arranged at the top of the clamping device (12), a pressing belt (13) is arranged on the outer ring of the clamping rotary table (1), the pressing belt (13) is wound on the roller (121), the feeding device is used for conveying the magnetic core workpieces to the feeding plate (2), and the swing arm device (3) is used for upwards lifting the clamping device (12) on the clamping rotary table (1), therefore, the magnetic core workpieces placed on the placing hole slots (11) are not pressed tightly, the conveying end of the feeding plate (2) is opposite to one of the placing hole slots (11) on the clamping turntable (1), and the pushing device is used for pushing the magnetic core workpieces into the placing hole slots (11) and pushing the magnetic core workpieces originally placed in the placing hole slots (11) onto the discharging slot (4); the magnetic core grinding device is characterized in that a first chamfer grinding device (5) and a second chamfer grinding device (6) are respectively arranged on two sides of the clamping rotary table (1), the first chamfer grinding device (5) and the second chamfer grinding device (6) are respectively opposite to one of the placing hole grooves (11) on the clamping rotary table (1), and the first chamfer grinding device (5) and the second chamfer grinding device (6) are used for grinding a magnetic core workpiece.

2. The automatic chamfering machine according to claim 1, wherein: the intermittent graduator, the feeding device, the swing arm device (3), the pushing device, the first chamfer grinding device (5) and the second chamfer grinding device (6) are respectively connected with the control box.

3. The automatic chamfering machine according to claim 2, wherein: the material pushing device comprises a material pushing cylinder and a material pushing block, the material pushing cylinder is connected with the control box, a piston rod of the material pushing cylinder is connected with the material pushing block, and the material pushing cylinder is used for pushing the material pushing block to move forwards so as to push the magnetic core workpiece into the placing hole groove.

4. The automatic chamfering machine according to claim 2, wherein: the swing arm device (3) comprises a swing arm motor (31), a swing arm rod (32) and a swing arm block (33), the swing arm motor (31) is connected with the control box, a protrusion (34) is arranged on the swing arm block (33), one end of the swing arm rod (32) is connected with the swing arm block (33), the other end of the swing arm motor is connected with an output shaft of the swing arm motor (31), and the swing arm motor (31) is used for driving the swing arm rod (32) to rotate so as to drive the swing arm block (33) and the protrusion (34) to rotate, so that the clamping device (12) on the material clamping turntable (1) is lifted.

5. The automatic chamfering machine according to claim 2, wherein: the magnetic core polishing device comprises a first workpiece pushing device, a first chamfering polishing device (5) and a second workpiece pushing device, wherein the first workpiece pushing device is used for pushing a magnetic core workpiece and comprises a first workpiece pushing plate and a first workpiece connecting rod, one end of the first workpiece connecting rod is connected with the first workpiece pushing plate, and the other end of the first workpiece connecting rod is connected with the first chamfering polishing device; the piston rod of the first polishing cylinder is connected with the first chamfer polishing device (5), the first polishing cylinder is used for pushing the first chamfer polishing device (5) and the first workpiece pushing device to move back and forth, the first chamfer polishing device (5) comprises a first polishing motor and a first polishing blade, the output end of the first polishing motor is connected with the first polishing blade, the first polishing motor is used for driving the first polishing blade to rotate, and the first polishing cylinder and the first polishing motor are respectively connected with the control box.

6. The automatic chamfering machine according to claim 2, wherein: the magnetic core polishing device comprises a first workpiece pushing device and a first chamfering polishing device (6), wherein the first workpiece pushing device is used for pushing a magnetic core workpiece and comprises a first workpiece pushing plate and a first workpiece connecting rod, one end of the first workpiece connecting rod is connected with the first workpiece pushing plate, and the other end of the first workpiece connecting rod is connected with the first chamfering polishing device (6); the piston rod of the second polishing cylinder is connected with the second chamfer polishing device (6), the second polishing cylinder is used for pushing the second chamfer polishing device (6) and the second workpiece pushing device to move back and forth, the second chamfer polishing device (6) comprises a second polishing motor and a second polishing blade, the output end of the second polishing motor is connected with the second polishing blade, the second polishing motor is used for driving the second polishing blade to rotate, and the second polishing cylinder and the second polishing motor are respectively connected with the control box.

7. The automatic chamfering machine according to claim 1, wherein: the feeding device is provided with a feeding chute (71), and the feeding chute (71) is obliquely arranged.

8. The automatic chamfering machine according to claim 7, wherein: the inclination angle of the feeding chute (71) is 10-30 degrees.

9. The automatic chamfering machine according to claim 1, wherein: the placing hole groove (11) is a V-shaped groove, and the thickness of the material clamping rotary disc (1) is smaller than that of the magnetic core workpiece.

10. The automatic chamfering machine according to claim 1, wherein: the clamping device (12) comprises a left pressing plate, a right pressing plate, a supporting shaft and a pressing block, wherein the left pressing plate and the right pressing plate are respectively arranged on two sides of the material clamping rotary table (1), the pressing block is arranged between the left pressing plate and the right pressing plate, the left pressing plate and the right pressing plate are respectively connected with the pressing block, and the left pressing plate, the right pressing plate and the material clamping rotary table (1) are connected through the supporting shaft.