CN105750394B - Motor stamping formation system - Google Patents

Abstract

The invention belongs to the field of motor stamping production and manufacturing, and specifically relates to a motor stamping forming system, which includes a first punching die and a second punching die, the first punching die punches on a metal strip, and the second punching die A punching die includes a punching die for forming the hollow part of the center of the outer rotor punch, and a blanking film for forming the edge of the outer rotor punch. The punching die and the blanking die operate at the same time to punch the outer rotor punch Cutting and forming: the blank produced when punching the hollow part of the outer rotor punching sheet is used as the blank of the inner rotor punching sheet, and the blank is punched by the second punching die to become the inner rotor punching sheet. The invention combines the forming process of the outer rotor punching sheet and the inner rotor punching sheet, the forming process of the outer rotor punching sheet is the blanking process of the inner rotor punching sheet, which simplifies the production process and improves the production efficiency.

Description

Motor punching forming system

technical field

The invention belongs to the field of motor sheet production and manufacturing, and in particular relates to a motor sheet forming system.

Background technique

The motor rotor is mainly composed of iron core and windings, and the iron core is generally formed by stacking multiple stamping sheets. According to different types of motors, the forming methods of the motor stamping sheets are also different, among which the forming process of ring motor stamping sheets is the most Complicated, roughly including blanking, punching, trimming and other processes, specifically: first punch out a disc-shaped blank on the metal strip, and then punch further on the blank to form a tooth groove for accommodating the winding , Finally, structures such as riveting holes and positioning grooves must be processed on the punching sheet. A set of processes must go through at least three to four processes. The production process is cumbersome and the production efficiency is low.

Contents of the invention

The purpose of the present invention is to provide a high-efficiency motor stamping and forming system.

In order to achieve the above object, the present invention provides the following technical solutions: a motor punching forming system, including a first punching die and a second punching die, the first punching die punches on a metal strip, The first punching die includes a punching die for forming the central hollow part of the outer rotor punch, and a blanking die for forming the edge of the outer rotor punch. The punching die and the blanking die operate simultaneously to punch the outer rotor once Punching and forming; the blanking produced when punching the hollow part of the outer rotor punching sheet is used as the blank of the inner rotor punching sheet, and the blank is punched by the second punching die to become the inner rotor punching sheet;

The second blanking die includes a first punch and a first die for forming the peripheral tooth grooves of the inner rotor punching piece, and a second punch and a second die for cutting the edge teeth of the blank;

The second blanking die also includes a third male die and a third female die for forming the center hole of the inner rotor punching sheet;

The first punch and the second die are installed on the upper die holder, and the first punch is nested inside the second die;

The first die, the second punch, and the third die are installed on the lower die holder, wherein the first die and the third die are integrated, and the first die and the third die are nested in the Inside the second punch;

The top end of the outer wall of the second punch is conical;

The upper mold base is also provided with a stripping plate, which is arranged to reciprocate up and down relative to the upper mold base, and the stripping plate is set on the first punch;

The lower mold base is also provided with a positioning ring, the positioning ring is arranged above the edge of the first die, and is coaxially arranged with the first die, and the inner diameter of the positioning ring is equal to the maximum outer diameter of the blank. equal;

There is a gap on the positioning ring for the operator to take and place the workpiece;

The positioning ring is elastically connected with the lower mold base, and at least three guide rods are connected at the bottom of the positioning ring, and the guide rods cooperate with the guide holes on the lower mold base, and the guide rods are covered with compression springs.

The technical effect of the present invention lies in: combining the forming process of the outer rotor punching sheet and the inner rotor punching sheet, the forming process of the outer rotor punching sheet is the blanking process of the inner rotor punching sheet, which simplifies the production process and improves the production efficiency .

Description of drawings

Fig. 1 is the first mold structural representation of the present invention;

Fig. 2 is the sectional view of the second mold of the present invention;

Fig. 3 is a structural schematic diagram of the outer rotor punching sheet of the present invention;

Fig. 4 is a schematic diagram of the blank structure of the inner rotor punching sheet of the present invention;

Fig. 5 is a structural schematic diagram of the inner rotor punching sheet of the present invention;

Fig. 6 is a structural schematic diagram of the positioning ring of the present invention.

Detailed ways

As shown in Figures 1 and 2, a motor punching forming system includes a first punching die 20 and a second punching die 30, the first punching die 20 punches on the metal strip 10, the second punching die 20 A blanking die 20 includes a punching die for forming the central hollow part of the outer rotor punch 50, and a blanking die for forming the edge of the outer rotor punch 50. The punching die and the blanking die operate simultaneously to make the outer rotor punch. The sheet 50 is punched and formed at one time; the blank produced when punching the hollow part of the outer rotor sheet 50 is used as the blank 51 of the inner rotor sheet 52, the structure of the blank 51 is shown in Figure 4, and the blank 51 is formed by the second punch The cutting die 30 punches out an inner rotor punching piece 52 . The present invention combines the forming process of the outer rotor punching sheet 50 and the inner rotor punching sheet 52. The forming process of the outer rotor punching sheet 50 is the blanking process of the inner rotor punching sheet 52, which simplifies the production process and improves the production efficiency. The cross-sectional shape of the punching die and the blanking die of the first die 20 is consistent with the shape of the outer rotor punching piece 50 shown in FIG. 3 .

Further, the second blanking die 30 includes a first male die 31 and a first female die 32 for forming the outer tooth groove 522 of the inner rotor punching piece 52, and a second punching die 32 for cutting the edge tooth piece 510 of the blank 51. A punch 33 and a second die 34. The cross-sectional shapes of the first male die 31 and the first female die 32 are consistent with the shape of the edge slots 522 of the inner rotor punching plate 52 shown in FIG. 5 .

Further, the second blanking die 30 also includes a third male die 35 and a third female die 36 for forming the central hole 521 of the inner rotor punching plate 52 .

Preferably, as shown in Figure 2, the first punch 31 and the second die 34 are installed on the upper die holder 38, and the first punch 31 is nested inside the second die 34.

Preferably, the first concave mold 32, the second convex mold 33, and the third concave mold 36 are installed on the lower mold base 39, wherein the first concave mold 32 and the third concave mold 36 are of an integrated structure, and the first concave mold The mold 32 and the third concave mold 36 are nested inside the second male mold 33 .

Preferably, the top end of the outer wall of the second punch 33 is conical, and the upper end of the second punch 33 forms a ring-shaped blade, which is convenient for cutting.

Further, as shown in Figure 2, the upper die base 38 is also provided with a discharge plate 37, the discharge plate 37 is arranged to reciprocate up and down relative to the upper die base 38, and the discharge plate 37 is set on the second On a punch 31.

Further, the lower mold base 39 is also provided with a positioning ring 42, the positioning ring 42 surrounds the upper edge of the first die 32, and is coaxially arranged with the first die 32, the positioning ring 42 The inner diameter is equal to the largest outer diameter of the blank 51 .

Preferably, as shown in FIG. 6 , a notch 43 is provided on the positioning ring 42 for the operator to pick and place the workpiece.

Further, the positioning ring 42 is elastically connected to the lower mold base 39, and at least three guide rods 40 are connected to the bottom of the positioning ring 42. The guide rods 40 cooperate with the guide holes on the lower mold base 37, and the guide rods 10 are sleeved with pressure Spring 41. The positioning ring 42 can accurately position the blank 51. When the upper mold base 38 is pressed down, the positioning ring 42 has a certain compression stroke, which can ensure the reliable fit between the positioning ring and the upper mold, and ensure the processing accuracy without affecting the Upper mold base 38 moves down.

Claims (8)

1. A motor stamping forming system, characterized in that: comprising a first blanking die (20) and a second blanking die (30), the first blanking die (20) is formed on the metal strip (10) punching, the first punching die (20) includes a punching die for forming the central hollow part of the outer rotor punch (50), and a blanking die for forming the edge of the outer rotor punch (50). The hole die and the blanking die act at the same time to punch the outer rotor punch (50) into shape at one time; the blanking produced when punching the hollow part of the outer rotor punch (50) is used as the blank (51) of the inner rotor punch (52). ), the blank (51) is blanked by the second blanking die (30) to become an inner rotor punch (52); The second blanking die (30) includes a first punch (31) and a first die (32) for forming the peripheral tooth groove (522) of the inner rotor punch (52), and a first die (32) for cutting the blank ( 51) the second punch (33) and the second die (34) of the edge gear (510); Described first die (32), second punch (33) are installed on the lower mold base (39); The lower mold base (39) is also provided with a positioning ring (42), and the positioning ring (42) is surrounded on the top of the edge of the first die (32), and is coaxially arranged with the first die (32) , the inner diameter of the positioning ring (42) is equal to the maximum outer diameter of the blank (51). 2. The electric motor punching forming system according to claim 1, characterized in that: the second punching die (30) further comprises a third hole (521) for forming the inner rotor punching (52) Convex die (35) and the 3rd concave die (36). 3. The motor punching forming system according to claim 2, characterized in that: the first punch (31) and the second die (34) are installed on the upper die base (38), and the first punch The mold (31) is nested inside the second concave mold (34). 4. The motor stamping forming system according to claim 3, characterized in that: the third die (36) is installed on the lower die base (39), wherein the first die (32) and the third die (36) ) is an integral structure, and the first die (32) and the third die (36) are nested inside the second punch (33). 5. The motor stamping forming system according to claim 4, characterized in that: the top end of the outer wall of the second punch (33) is conical. 6. The motor punching forming system according to claim 5, characterized in that: the upper mold base (38) is also provided with a stripping plate (37), and the stripping plate (37) is opposite to the upper mold The seat (38) is reciprocated up and down, and the discharge plate (37) is set on the first punch (31). 7. The motor sheet forming system according to claim 1, characterized in that: the positioning ring (42) is provided with a gap (43) for the operator to pick and place the workpiece. 8. The motor punching forming system according to claim 7, characterized in that: the positioning ring (42) is elastically connected to the lower mold base (39), and at least three guide rods (40) are connected to the bottom of the positioning ring (42) ), the guide rod (40) cooperates with the guide hole on the lower mold base (37), and the guide rod (10) is sheathed with a stage clip (41).