CN218854905U - Positive and negative detection device of iron core - Google Patents

Abstract

The utility model discloses a positive and negative detection device of an iron core, which relates to the technical field of detection devices and comprises a frame, a feeding device, a first conveying device and a detection mechanism, wherein the feeding device, the first conveying device and the detection mechanism are arranged on the frame; the detection mechanism is equipped with the platform of placing including placing platform and first sensor in the frame, places the bench and is equipped with the connecting hole, and the connecting hole is located to first sensor, and when the work piece was placed on placing the bench, the breach correspondence of first sensor and work piece made first sensor expose outside the work piece. The workpiece is adjusted, when the workpiece is placed on the placing table, the first sensor does not sense that the workpiece covers the workpiece, and the first sensor corresponds to the notch of the workpiece, so that the workpiece placing position is correct.

Description

An iron core positive and negative detection device

technical field

The utility model relates to the technical field of detection devices, in particular to an iron core front and back detection device.

Background technique

There is an iron core workpiece. The iron core workpiece is in the shape of a quadrilateral with chamfers at the four corners. The middle position is hollowed out, and a gap is provided on one side of the workpiece. After processing, the workpiece needs to be inspected after being transported to the overdue position. The front and back and angles of its placement make all the workpieces at the same angle and front and back positions, so that the list will be clearer.

Now most of them are distinguished and listed manually, which not only wastes manpower but also is very inconvenient.

Utility model content

The purpose of the utility model is to provide an iron core positive and negative detection device. It solves the problem that most of the identification and listing are done manually, which not only wastes manpower but also is very inconvenient.

In order to achieve the above-mentioned purpose, the solution adopted by the utility model is: an iron core positive and negative detection device, including a frame and a feeding device arranged on the frame, a first transportation device and a detection mechanism, the upper One side of the feeding device is provided with the first transportation device and the detection mechanism, and the first transportation device is arranged on the upper side of the detection mechanism;

The detection mechanism includes a placement platform and a first sensor, the frame is provided with the placement platform for placing workpieces, the placement platform is provided with a connection hole, and the first sensor is arranged in the connection hole , when the workpiece is placed on the placing table, the first sensor corresponds to the notch of the workpiece so that the first sensor is exposed outside the workpiece.

In this solution, after the workpiece is placed on the placement platform by setting the first sensor, if the first sensor can feel that the workpiece covers it, it means that the position of the workpiece is wrong. After adjusting the workpiece, when the workpiece is placed on the placement platform If the first sensor does not feel the workpiece to cover it, it means that the first sensor corresponds to the notch position of the workpiece, and the workpiece is placed in the correct position.

There are multiple first sensors, and when the workpiece is placed on the placement table, except one of the first sensors corresponding to the notch of the workpiece, the rest of the first sensors are all controlled by the Workpiece occlusion.

In this solution, by arranging multiple first sensors and only one sensor corresponding to the notch of the workpiece, it is more convenient to judge how to adjust the workpiece and to detect whether the workpiece is placed in the correct position.

It also includes a first adjustment mechanism and a second adjustment mechanism, the first adjustment mechanism is located on the upper side of the placement plate, and the second adjustment mechanism is located on the lower side of the placement table;

The first adjustment mechanism includes a connecting column, a first rotating motor, and a first oil cylinder, the connecting column is connected to the frame and is located on the side of the placement table away from the feeding device, the connecting column The upper side is provided with the first rotating motor, the rotating shaft of the first rotating motor is connected with the first oil cylinder, and the telescopic rods on both sides of the first oil cylinder are connected with jaws, and the two clamps Jaws are used to clamp the workpiece;

The second adjustment mechanism includes a servo motor, the servo motor is provided on the frame, a through hole is provided on the placement platform, a rotating plate is provided at the upper end of the motor shaft of the servo motor, and a rotating plate is provided on the rotating plate. It is used to push the workpiece in the through hole.

In this solution, the workpiece can be adjusted more conveniently and automatically by setting the first adjustment mechanism and the second adjustment mechanism, so that it is in the correct state. The first adjustment mechanism is used to adjust the front and back of the workpiece, and the second adjustment mechanism is used to For adjusting the angle of the workpiece.

The first transportation mechanism includes a first servo slide, a second servo slide and a connecting seat, the frame is provided with the first servo slide, and one side of the first servo slide is provided with a The second servo slide table vertically arranged and slidably connected with it, the first slide block is slidably provided on the second servo slide table, the connecting seat is provided at the lower end of the first slide block, and the A second oil cylinder is installed in the connecting seat, and the lower end of the connecting seat is provided with an insertion assembly and a second sensor located on one side of the insertion assembly, and the insertion assembly is connected with the second oil cylinder for transporting the described artifacts.

In this scheme, the first transport mechanism transports the workpiece to the detection mechanism, and after the detection is completed, the workpiece is transported and stored in a unified manner; the second sensor is used to detect the thickness of the workpiece, and if it is qualified, it will continue to detect the front and back of the workpiece; Store it in the place of non-conforming products.

A storage component is provided on the lower side of the first transport mechanism, and the first transport mechanism transports the inspected workpiece and places it on the storage component for storage.

In this solution, qualified products after testing are uniformly placed on storage components for storage for use.

The loading device includes a loading assembly and a placement assembly, the loading assembly is connected to the placement assembly through a second transport mechanism to transport the workpiece to the placement assembly for standby, and the placement assembly includes a placement box and The first movement assembly, the frame is provided with the placement box, the placement box is located on the side of the placement platform away from the storage assembly, the placement box is provided with a sliding hole, and the placement box is A positioning column is arranged on a side close to the placement platform, and the first moving assembly is arranged on the lower side of the frame, and a first sliding plate is connected to the first moving assembly, and the upper end of the first sliding plate A second slider is provided, and a top block is arranged on the second slider, and the second slider is slidably arranged in the slide hole to drive the top block to push the workpiece.

In this solution, the feeding component transports the material to the placing component for placement. When the first transport mechanism transports a material, the first moving component drives the second slider to slide along the first sliding plate so that the material will be pushed by the jacking block. The material on the side is transported to the position to be picked, until the material on the placement component is taken out, the first moving component drives the first slider to reset, and the loading mechanism loads the material again to repeat the above action.

The feeding assembly includes a second moving assembly, a second sliding plate is provided on the second moving assembly, the second transport mechanism is provided on the second sliding plate, and the second transport mechanism includes a second rotating motor, driving wheel, driven wheel, first nut and screw seat, the lower end of the second sliding plate is provided with a connecting plate, the connecting plate is provided with the second rotating motor, and the second rotating motor The lower side is provided with the driving wheel connected to its rotating shaft, and the side of the driving wheel close to the second sliding plate is provided with the driven wheel, and the driven wheel is connected with the driving wheel through a synchronous belt. The driven wheel is provided with the first nut, the second sliding plate is provided with the screw seat, and one of the screw seats of the screw seat cooperates with the first nut so that the thread The rod seat can move up and down, and the underside of the screw is provided with a number of suction cups, which are used for absorbing workpieces and transporting workpieces.

In this scheme, the second rotating motor drives the driving wheel to rotate, the driven wheel rotates synchronously, the screw seat moves downward, the suction cup absorbs the workpiece, the second rotating motor drives the driving wheel to rotate, the driven wheel rotates synchronously, the screw seat moves upward, and the After the workpiece is adsorbed on the suction cup, the second moving component drives the second sliding plate to slide, so that the second transport mechanism moves to the top of the placing component, and then repeats the above actions to place the workpiece on the placing component.

A fixed plate is arranged on the frame, and the second moving assembly is arranged on the fixed plate.

A connection hole is opened on the fixed plate, a workpiece placement device is provided on the lower side of the connection hole, and the workpiece placement device is arranged on one side of the placement box for placing workpieces, and the second movement mechanism moves the workpiece The workpieces in the workpiece placement device are transported to the placement box for standby.

Description of drawings

Fig. 1 is the structural representation of the iron core positive and negative detection device of the present utility model;

Fig. 2 is a schematic diagram of the enlarged structure at A in Fig. 1;

Fig. 3 is a schematic diagram of the enlarged structure at B in Fig. 1;

FIG. 4 is a schematic diagram of an enlarged structure at position C in FIG. 1 .

In the figure: 1. Rack; 2. First transportation device; 21. First servo slide; 22. Second servo slide; 23. Connecting seat; 24. First slider; 25. Second oil cylinder; 26 , plug-in assembly; 27, the second sensor; 3, the detection mechanism; 31, the placement table; 32, the first sensor; 4, the first adjustment mechanism; 41, the connecting column; 42, the first rotating motor; 43, the first Oil cylinder; 44, jaws; 5, second adjustment mechanism; 51, servo motor; 6, storage assembly; 7, feeding device; 71, feeding assembly; 711, second moving assembly; 712, second sliding plate; 72, placement assembly; 721, placement box; 722, first movement assembly; 723, positioning column; 724, first slide plate; 725, second slide block; 726, top block; 73, second transport mechanism; 731, 732, driving wheel; 733, driven wheel; 734, first nut; 735, screw seat; 736, synchronous belt; 737, sucker; 8, fixed plate; 81, connecting hole; 9, workpiece placement Device; 91. Workpiece.

Detailed ways

In order to enable those skilled in the art to better understand the utility model and to define the protection scope of the utility model more clearly, the utility model will be described in detail below with respect to some specific embodiments of the utility model. It should be noted that the following are only some specific implementations of the utility model concept and are only a part of the embodiments of the utility model, wherein the specific and direct description of the relevant structure is only for the convenience of understanding the utility model, and each specific feature Of course, it does not directly limit the implementation scope of the present utility model. Conventional selections and replacements made by those skilled in the art under the guidance of the concept of the utility model should be considered within the protection scope of the utility model.

An iron core front and back detection device, comprising a frame 1 and a feeding device 7 arranged on the frame 1, a first transportation device 2 and a detection mechanism 3, and one side of the feeding device 7 is provided with a first transportation device 2 And detection mechanism 3, the first transportation device 2 is located at the upper side of detection mechanism 3; Detection mechanism 3 comprises placement platform 31 and first sensor 32, and frame 1 is provided with the placement platform 31 that is used to place workpiece 91, placement platform 31 A connection hole is provided on the top, and the first sensor 32 is arranged in the connection hole. When the workpiece 91 is placed on the placement table 31, the first sensor 32 corresponds to the gap of the workpiece 91 so that the first sensor 32 is exposed outside the workpiece 91. There are multiple first sensors 32 . When the workpiece 91 is placed on the placement table 31 , except for one first sensor 32 corresponding to the gap of the workpiece 91 , the remaining first sensors 32 are all blocked by the workpiece 91 .

In this embodiment, the placement table 31 is provided with a place for placing the workpiece 91, and the first sensors 32 are arranged around the inner periphery of the place where the workpiece 91 is placed, and two first sensors 32 are provided on each side, and a total of eight first sensors 32 are provided. The first sensor 32, wherein the first sensor 32 on the uppermost right side corresponds to the gap of the workpiece 91, the other seven first sensors 32 will be blocked by the workpiece 91 when the workpiece 91 is placed correctly, if the first sensor 32 in other positions If the sensor 32 is not blocked or the first sensor 32 that should not be blocked is blocked, it means that the workpiece 91 is placed incorrectly and needs to be corrected.

After the workpiece 91 is placed on the placement table 31 by setting the first sensor 32, if the first sensor 32 can feel that the workpiece 91 covers it, then it shows that the position of the workpiece 91 is wrong. When the workpiece 91 is adjusted, when the workpiece 91 is placed on the For the placement position of the placement table 31, if the first sensor 32 does not feel that the workpiece 91 covers it, then the first sensor 32 corresponds to the notch position of the workpiece 91, and the placement position of the workpiece 91 is correct. By arranging a plurality of first sensors 32 and having only one sensor corresponding to the gap of the workpiece 91, it is more convenient to judge how to adjust the workpiece 91 and to detect whether the workpiece 91 is placed in a correct position.

It also includes a first adjustment mechanism 4 and a second adjustment mechanism 5, the first adjustment mechanism 4 is located on the upper side of the placement plate, and the second adjustment mechanism 5 is located on the lower side of the placement table 31; the first adjustment mechanism 4 includes a connecting column 41, a second adjustment mechanism 4 A rotating motor 42 and the first oil cylinder 43, the connecting column 41 is connected with the frame 1 and is positioned at the side of the placement table 31 away from the feeding device 7, the upper side of the connecting column 41 is provided with the first rotating motor 42, the first rotating motor The rotating shaft of 42 is connected with the first oil cylinder 43, and the telescopic rods on both sides of the first oil cylinder 43 are connected with jaws 44, and the two jaws 44 are used to clamp the workpiece 91; the second adjustment mechanism 5 includes a servo motor 51, The frame 1 is provided with a servo motor 51, and the placement table 31 is provided with a through hole. The upper end of the motor shaft of the servo motor 51 is provided with a rotating plate, and the rotating plate is arranged in the through hole for jacking the workpiece 91.

In this embodiment, when the position of the workpiece 91 needs to be adjusted, the servo motor 51 needs to be started, and the servo motor 51 drives the rotating plate to hold the workpiece 91 up. 43 drives the jaws 44 to clamp the workpiece 91. After the first rotating motor 42 drives the synchronous rotation of 180 degrees, the adjustment can be completed by releasing the grip. The angle of the workpiece 91 is adjusted to a qualified position, and the servo motor 51 is shortened again to place the workpiece 91 on the placement position. By setting the first adjustment mechanism 4 and the second adjustment mechanism 5, the workpiece 91 can be adjusted more conveniently and automatically, so that it is in the correct state. The first adjustment mechanism 4 is used to adjust the front and back of the workpiece 91, and the second adjustment mechanism 5 is used to adjust the angle of the workpiece 91.

The first transport mechanism includes a first servo slide 21, a second servo slide 22 and a connecting seat 23. The frame 1 is provided with a first servo slide 21, and one side of the first servo slide 21 is arranged perpendicular to it. And the second servo slide table 22 that is slidably connected with it, the first slide block 24 is slidably provided on the second servo slide table 22, the lower end of the first slide block 24 is provided with a connection seat 23, and the first slide block 23 is installed in the connection seat 23. Two oil cylinders 25 , the lower end of the connecting seat 23 is provided with an insertion assembly 26 and a second sensor 27 located on one side of the insertion assembly 26 , the insertion assembly 26 is connected with the second oil cylinder 25 for transporting the workpiece 91 .

In this embodiment, the first servo slide table 21 is arranged parallel to the upper surface of the frame 1, the front side of the placement table 31 is also provided with a telescopic cylinder, and the rear side of the placement table 31 is also provided with a place for placing waste workpieces 91. After the qualified workpiece 91 is placed on the placement position, the telescopic cylinder starts to push the unqualified workpiece 91 into the waste workpiece 91 placement position for unified storage, which is convenient for the staff to take out the unqualified products. The first transportation mechanism is used to transport the workpiece 91 to the detection mechanism 3. After the detection is completed, the workpiece 91 is transported and stored in a unified manner; the second sensor 27 is used to detect the thickness of the workpiece 91. If it is qualified, it will continue to detect the front and back of the workpiece 91. If it is unqualified, it will be placed in the waste workpiece 91 placement place for preservation.

The lower side of the first transportation mechanism is provided with a storage assembly 6, and the first transportation mechanism transports the detected workpiece 91 and places it on the storage assembly 6 for storage. The storage unit 6 is a conveying table, which can transport the qualified workpiece 91 to the next process, and this conveying table is a prior art, so it will not be repeated here. Qualified products after testing are uniformly placed on the storage component 6 for storage and ready for use.

The feeding device 7 includes a feeding assembly 71 and a placement assembly 72. The feeding assembly 71 is connected with the placement assembly 72 through the second transport mechanism 73 and transports the workpiece 91 to the placement assembly 72 for standby. The placement assembly 72 includes a placement box 721 and a first Motion assembly 722, frame 1 is provided with placement box 721, placement box 721 is located at the side of placement platform 31 far away from storage assembly 6, is provided with sliding hole in placement box 721, and placement box 721 is provided with near the side of placement platform 31. Positioning column 723 is arranged, and the underside of frame 1 is provided with first motion assembly 722, is connected with first slide plate 724 on the first motion assembly 722, and the upper end of first slide plate 724 is provided with second slide block 725, and the second slide block 725 A jacking block 726 is arranged on the block 725, and the second sliding block 725 is slidably arranged in the sliding hole to drive the jacking block 726 to push the workpiece 91. The feeding component 71 transports the material to the placing component 72 for placement. When the first transport mechanism transports a material, the first moving component 722 drives the second slider 725 to slide along the first sliding plate 724 so that the top block 726 pushes the material The material on the rear side is transported to the position to be picked, until the material on the placement component 72 is taken out, the first moving component 722 drives the first slider 24 to reset, and the loading mechanism loads the material again to repeat the above action.

The feeding assembly 71 includes a second moving assembly 711, the second moving assembly 711 is provided with a second sliding plate 712, the second sliding plate 712 is provided with a second transport mechanism 73, and the second transport mechanism 73 includes a second rotating motor 731, Driving wheel 732, driven wheel 733, first nut 734 and screw mandrel seat 735, the lower end of the second sliding plate 712 is provided with connecting plate, and connecting plate is provided with the second rotating motor 731, and the lower side of the second rotating motor 731 is provided with. There is a driving wheel 732 connected to its rotating shaft, the driving wheel 732 is provided with a driven wheel 733 near the second sliding plate 712, the driven wheel 733 is connected with the driving wheel 732 through a timing belt 736, and the driven wheel 733 is provided with a first nut 734 , the second sliding plate 712 is provided with a screw seat 735, wherein the screw of the screw seat 735 cooperates with the first nut 734 so that the screw seat 735 can move up and down, and the lower side of the lead screw is provided with a number of suction cups 737, The suction cup 737 is used for absorbing the workpiece 91 and transporting the workpiece 91 .

In this embodiment, the second moving component 711 is a telescopic oil cylinder and a guide rail, and the telescopic rod of the telescopic oil cylinder is connected to the second sliding plate 712, and the second sliding plate 712 is driven to slide along the guide rail through telescopic expansion. The second rotating motor 731 drives the driving wheel 732 to rotate, the driven wheel 733 rotates synchronously, the screw seat moves downward, the suction cup 737 absorbs the workpiece 91, the second rotating motor 731 drives the driving wheel 732 to rotate, the driven wheel 733 rotates synchronously, and the screw seat Moving upwards, after the workpiece 91 is adsorbed on the suction cup 737, the second moving component 711 drives the second sliding plate to slide, so that the second transport mechanism 73 moves to the top of the placing component 72, and then repeats the above action to place the workpiece 91 on the placing component 72 superior.

A fixed plate 8 is arranged on the frame 1 , and a second moving assembly 711 is arranged on the fixed plate 8 . The fixed plate 8 is provided with a connecting hole 81, the lower side of the connecting hole 81 is provided with a workpiece placement device 9, and the workpiece placement device 9 is arranged on one side of the placement box 721 for placing the workpiece 91, and the second movement mechanism moves the workpiece placement device 9 The workpiece 91 in the container is transported to the storage box 721 for subsequent use.

The above are only preferred embodiments of the present utility model, and it should be pointed out that for those of ordinary skill in the art, without departing from the technical principles of the present utility model, multiple improvements and modifications can also be made. Retouching should also be regarded as the scope of protection of the present utility model.

Claims (9)

1. The device for detecting the positive and negative sides of the iron core is characterized by comprising a rack (1), and a feeding device (7), a first conveying device (2) and a detecting mechanism (3) which are arranged on the rack (1), wherein the first conveying device (2) and the detecting mechanism (3) are arranged on one side of the feeding device (7), and the first conveying device (2) is arranged on the upper side of the detecting mechanism (3);

the detection mechanism (3) comprises a placing table (31) and a first sensor (32), the placing table (31) used for placing a workpiece (91) is arranged on the rack (1), a connecting hole is formed in the placing table (31), the first sensor (32) is arranged in the connecting hole, when the workpiece (91) is placed on the placing table (31), the first sensor (32) corresponds to a notch of the workpiece (91) so that the first sensor (32) is exposed out of the workpiece (91).

2. The device for detecting the positive and negative orientations of a core according to claim 1, wherein a plurality of first sensors (32) are provided, and when the workpiece (91) is placed on the placing table (31), the remaining first sensors (32) are shielded by the workpiece (91) except for one first sensor (32) corresponding to the notch of the workpiece (91).

3. The device for detecting the positive and negative directions of iron cores according to claim 1, further comprising a first adjusting mechanism (4) and a second adjusting mechanism (5), wherein the first adjusting mechanism (4) is located at the upper side of the placing plate, and the second adjusting mechanism (5) is located at the lower side of the placing table (31);

the first adjusting mechanism (4) comprises a connecting column (41), a first rotating motor (42) and a first oil cylinder (43), the connecting column (41) is connected with the rack (1) and is located on one side, away from the feeding device (7), of the placing table (31), the first rotating motor (42) is arranged on the upper side of the connecting column (41), the rotating shaft of the first rotating motor (42) is connected with the first oil cylinder (43), the telescopic rods on the two sides of the first oil cylinder (43) are both connected with clamping jaws (44), and the two clamping jaws (44) are used for clamping a workpiece (91);

the second adjusting mechanism (5) comprises a servo motor (51), the servo motor (51) is arranged on the rack (1), a through hole is formed in the placing table (31), a rotating plate is arranged at the upper end of a motor shaft of the servo motor (51), and the rotating plate is arranged in the through hole and used for pushing the workpiece (91).

4. The positive and negative detection device of iron core of claim 1, characterized in that, first conveyer (2) includes first servo slip table (21), second servo slip table (22) and connecting seat (23), be equipped with on frame (1) first servo slip table (21), one side of first servo slip table (21) is equipped with rather than perpendicular setting and rather than sliding connection second servo slip table (22), be equipped with first slider (24) on second servo slip table (22) slidable, the lower extreme of first slider (24) is equipped with connecting seat (23), install second hydro-cylinder (25) in connecting seat (23), the lower extreme of connecting seat (23) is equipped with inserts establish subassembly (26) and be located insert second sensor (27) that establish subassembly (26) one side, insert establish subassembly (26) with second hydro-cylinder (25) are connected and are used for transporting work piece (91).

5. The device for detecting the positive and negative sides of the iron core as claimed in claim 1, wherein a storage component (6) is arranged at the lower side of the first transportation device (2), and the first transportation device (2) transports the detected workpiece (91) to be placed on the storage component (6) for storage.

6. The device for detecting the positive and negative sides of the iron core according to claim 5, wherein the feeding device (7) comprises a feeding assembly (71) and a placing assembly (72), the feeding assembly (71) is connected with the placing assembly (72) through a second transporting mechanism (73) to transport the workpiece (91) onto the placing assembly (72) for standby, the placing assembly (72) comprises a placing box (721) and a first moving assembly (722), the placing box (721) is arranged on the machine frame (1), the placing box (721) is arranged on one side of the placing table (31) far away from the storage assembly (6), a sliding hole is arranged in the placing box (721), a positioning column (723) is arranged on one side of the placing box (721) close to the placing table (31), the first moving assembly (722) is arranged on the lower side of the machine frame (1), a first sliding plate (724) is connected to the first moving assembly (722), a second sliding block (725) is arranged on the upper end of the first sliding plate (724), and a jacking sliding block (725) is arranged on the second sliding block (725) and is slidably arranged in the jacking block (725).

7. The iron core positive and negative detection device according to claim 6, wherein the feeding assembly (71) comprises a second moving assembly (711), a second sliding plate (712) is disposed on the second moving assembly (711), the second sliding plate (712) is provided with the second transportation mechanism (73), the second transportation mechanism (73) comprises a second rotating motor (731), a driving wheel (732), a driven wheel (733), a first nut (734) and a screw seat (735), a connecting plate is disposed at a lower end of the second sliding plate (712), the second rotating motor (731) is disposed on the connecting plate, the driving wheel (732) connected to a rotating shaft of the second rotating motor (731) is disposed at a lower side of the second rotating motor (73), the driven wheel (733) is disposed at a side of the driving wheel (732) close to the second sliding plate (712), the driven wheel (733) is connected to the driving wheel (732) through the driving wheel (736), the first nut (734) is disposed on the driven wheel (733), the second sliding plate (712) is disposed on the driven wheel (735), the screw seat (735) is connected to the driving wheel (732) through the driving wheel (732), a plurality of screw seats (734) are disposed on the driven belt (733), and a plurality of the screw seat (735) is disposed on the lower side of the screw (737) of the screw seat (735, so that the screw (734) can move up and down of the screw (737) can be matched with the screw seat (737), the sucking disc (737) is used for adsorbing the workpiece (91) and transporting the workpiece (91).

8. The device for detecting the positive and negative orientations of the iron core according to claim 7, wherein a fixed plate (8) is disposed on the machine frame (1), and the second moving assembly (711) is disposed on the fixed plate (8).

9. The device for detecting the positive and negative sides of the iron core as claimed in claim 8, wherein the fixing plate (8) is provided with a connecting hole (81), a workpiece placing device (9) is arranged at the lower side of the connecting hole (81), the workpiece placing device (9) is arranged at one side of the placing box (721) and used for placing the workpiece (91), and the second moving component (711) transports the workpiece (91) in the workpiece placing device (9) to the placing box (721) for standby.

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