Automatic buckling and stacking device for rotor punching sheets

Abstract

The present invention relates to the technical field of stamping machinery, and discloses an automatic buckle stacking device for rotor punching sheets, comprising a base, wherein the upper end of the base is formed with a guide column, a liftable punching sheet receiving barrel is sleeved on the guide column, and a punching sheet anti-slip mechanism is provided at the bottom of the punching sheet receiving barrel; a core shaft coaxially arranged therewith is sleeved in the punching sheet receiving barrel, a sheet pressing mechanism is provided at the upper end of the core shaft, and a lifting mechanism for driving the core shaft to move up and down is provided at the lower end of the core shaft, and the lifting mechanism comprises a lifting bracket, and a driving mechanism for driving the core shaft to rotate is provided on the lifting bracket. It ensures that the latter rotor punching sheet can be inserted into the former rotor punching sheet by applying pressure on the rotor punching sheet and rotating it, and automatically completes the stacking, which can effectively improve production efficiency and reduce production costs.

Description

Technical field:

[0001] The invention relates to the technical field of stamping machinery, and in particular to an automatic buckling and stacking device for rotor punching sheets. Background technology:

[0002] The rotor of a motor is generally composed of a plurality of rotor punchings stacked together. After the rotor punchings are stamped and formed individually, the multiple layers of rotor punchings are riveted or welded together. During the stacking process, it is necessary to ensure that the upper and lower layers of rotor punchings are completely aligned, and the workload of manual alignment in the later stage is large. In order to improve this problem, a plurality of slots are punched out on the rotor punchings, and a buckle is formed on each slot. The buckle of each rotor punching can pass through the slot of the adjacent rotor punching and press against a corresponding buckle. The existing stacking device uses a mold and a punching machine to press the rotor punchings downward out of the mold, and the rotor punchings automatically fall and are automatically stacked together. However, due to the slight change in the position of the rotor during the falling process and the small matching clearance between the slot and the buckle, it cannot be guaranteed that the slot of each freely falling rotor punching is accurately inserted into the buckle of the previous rotor punching, and workers are required to manually buckle it in the later stage. Summary of the invention:

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an automatic clip-on stacking device for rotor punchings, which applies pressure on the rotor punchings and rotates them at the same time, thereby ensuring that the subsequent rotor punching can be inserted into the previous rotor punching, automatically completing the stacking, which can effectively improve production efficiency and reduce production costs.

[0004] The solution of the present invention to solve the technical problem is:

[0005] A rotor punching automatic buckle stacking device comprises a base, the upper end of the base is formed with a guide column, a liftable punching sheet receiving barrel is sleeved on the guide column, and a punching sheet anti-slip mechanism is provided at the bottom of the punching sheet receiving barrel; a core shaft coaxially arranged therewith is sleeved inside the punching sheet receiving barrel, a sheet pressing mechanism is provided at the upper end of the core shaft, and a lifting mechanism for driving the core shaft to move up and down is provided at the lower end of the core shaft, and the lifting mechanism comprises a lifting bracket, and a driving mechanism for driving the core shaft to rotate is provided on the lifting bracket.

[0006] The punching sheet receiving cylinder includes an upper cone cylinder, an intermediate cylinder and a lower cylinder which are integrally formed; the upper cone cylinder is larger at the top and smaller at the bottom, the inner diameter of the intermediate cylinder is clearance-matched with the outer diameter of the rotor punching sheet, and the inner diameter of the lower cylinder is clearance-matched with the outer diameter of the guide column cylinder;

[0007] The lower tube is inserted into the guide column tube, a connecting block is fixed on the inner wall of the lower tube, the connecting block is fixed on the slider of the linear module, the linear module is vertically arranged and fixed in the guide column tube; the slider and the connecting block are inserted into the slot of the guide column tube.

[0008] The punching plate anti-slip mechanism includes a plurality of electromagnets fixed on the lower bottom surface of the intermediate cylinder; the rotor punching plate can be attracted by the electromagnets.

[0009] The upper end of the mandrel is formed with a cone and a regular polygonal hole with an upper opening, each side of the regular polygonal hole is formed with a rack groove, and the outer wall of the upper end of the mandrel is formed with a plurality of gear grooves corresponding to and communicating with the plurality of rack grooves;

[0010] The sheet pressing mechanism comprises a regular polygonal column matched with the regular polygonal hole, a rack is fixed on each side of the regular polygonal column, each rack is meshed with a half gear, the half gear is inserted in the gear groove, the half gear is hinged on the gear shaft through a bearing, the gear shaft is inserted and fixed on a corresponding gear groove; a pressing plate is fixed on the outer wall of the half gear, and a rubber pad is fixed on the end of the pressing plate away from the half gear;

[0011] The lower end of the regular polygonal column is fixedly connected to the telescopic rod of the first telescopic cylinder, and the first telescopic cylinder is fixed on the bottom surface of the regular polygonal hole.

[0012] A limiting groove is formed on one side wall of the regular polygonal column, a limiting pin is sleeved in the limiting groove, and the limiting pin is fixed on the core shaft;

[0013] When the lower end of the limiting groove is pressed against the limiting pin, the pressing plate is in a horizontal state.

[0014] The driving mechanism comprises a first motor fixed on the lifting bracket, a gear is fixed on the motor shaft of the first motor, the gear is meshed with an inner gear ring, and the inner gear ring is fixed on the lower end of the core shaft.

[0015] The lower end of the mandrel is formed with a countersunk hole with a lower opening, and the middle of the countersunk hole is formed with a boss;

[0016] The lifting mechanism also includes a second telescopic cylinder fixed on the lifting bracket, the telescopic rod of the second telescopic cylinder is fixed with a top block through a push-pull rod, and the top block is against the lower bottom surface of the boss; a spring support seat is provided on the outer side of the top block, and the spring support seat is fixed on the boss, and a compression spring is clamped between the lower bottom surface of the top block and the lower bottom surface of the spring support seat;

[0017] The lower end of the lifting bracket is inserted into two vertically arranged guide rods, the two ends of the guide rods are respectively fixed on the upper support plate and the base, and the upper support plate is fixedly connected to the inner wall of the guide column tube;

[0018] A screw rod arranged parallel to the guide rod is rotatably connected between the upper support plate and the base via a bearing, and the lower end of the lifting bracket is screwed on the screw rod; a servo motor driving the screw rod to rotate is fixed on the base.

[0019] A circular limiting sleeve is formed on the upper end of the lifting bracket, and the outer diameter of the circular limiting sleeve is clearance-matched with the inner diameter of the countersunk hole.

[0020] The outstanding effects of the present invention are:

[0021] Compared with the prior art, it applies pressure on the rotor punching sheet and rotates it at the same time, thereby ensuring that the latter rotor punching sheet can be inserted into the former rotor punching sheet, automatically completing the stacking, which can effectively improve production efficiency and reduce production costs. Description of the drawings:

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 A top view of the present invention;

[0024] Figure 3 for Figure 2 A partial enlarged view of A;

[0025] Figure 4 for Figure 3 About the cross-sectional view of BB;

[0026] Figure 5 Schematic diagram of the assembly of the mandrel and the tablet pressing mechanism of the present invention

[0027] Figure 6 It is a schematic diagram of the assembly of the regular polygonal column and the rack of the present invention;

[0028] Figure 7 The present invention is a schematic diagram of the structure of the rotor punching sheet. Specific implementation method:

[0029] For example, see Figures 1 to 7 As shown, an automatic clip-on stacking device for rotor punching sheets comprises a base 1, wherein a guide column 11 is formed on the upper end of the base 1, a liftable punching sheet receiving barrel 2 is sleeved on the guide column 11, and a punching sheet anti-slip mechanism 3 is provided at the bottom of the punching sheet receiving barrel 2; a core shaft 4 coaxially arranged therewith is sleeved inside the punching sheet receiving barrel 2, a sheet pressing mechanism 5 is provided at the upper end of the core shaft 4, and a lifting mechanism 6 for driving the core shaft 4 to move up and down is provided at the lower end of the core shaft 4, and the lifting mechanism 6 comprises a lifting bracket 61, and a driving mechanism 7 for driving the core shaft 4 to rotate is provided on the lifting bracket 61.

[0030] Furthermore, the punch receiving cylinder 2 includes an upper cone cylinder 21, an intermediate cylinder 22 and a lower cylinder 23 which are integrally formed; the upper cone cylinder 21 is larger at the top and smaller at the bottom, the inner diameter of the intermediate cylinder 22 is configured to be clearance matched with the outer diameter of the rotor punch 9, and the inner diameter of the lower cylinder 23 is configured to be clearance matched with the outer diameter of the guide column cylinder 11;

[0031] The lower tube 23 is inserted into the guide column tube 11, and a connecting block 24 is fixed on the inner wall of the lower tube 23. The connecting block 24 is fixed on the slider 26 of the linear module 25. The linear module 25 is vertically arranged and fixed in the guide column tube 11; the slider 26 and the connecting block 24 are inserted into the slot 12 of the guide column tube 11.

[0032] Furthermore, the punching plate anti-slip mechanism 3 includes a plurality of electromagnets 31 fixed on the lower bottom surface of the intermediate cylinder 22 ; the rotor punching plate 9 can be attracted by the electromagnets 31 .

[0033] Furthermore, the upper end of the core shaft 4 is formed with a cone 41 and a regular polygonal hole 42 with an upper opening, each side of the regular polygonal hole 42 is formed with a rack groove 43, and the upper end outer wall of the core shaft 4 is formed with a plurality of gear grooves 44 corresponding to and communicating with the plurality of rack grooves 43;

[0034] The sheet pressing mechanism 5 comprises a regular polygonal column 51 matched with the regular polygonal hole 42, a rack 52 is fixed on each side of the regular polygonal column 51, each rack 52 is meshed with a half gear 53, the half gear 53 is inserted in the gear groove 44, the half gear 53 is hinged on the gear shaft 54 ​​through a bearing, the gear shaft 54 ​​is inserted and fixed on a corresponding gear groove 44; a pressing plate 55 is fixed on the outer wall of the half gear 53, and a rubber pad 56 is fixed on the end of the pressing plate 55 away from the half gear 53;

[0035] The lower end of the regular polygonal column 51 is fixedly connected to the telescopic rod of the first telescopic cylinder 57 , and the first telescopic cylinder 57 is fixed on the bottom surface of the regular polygonal hole 42 .

[0036] Furthermore, a limiting groove 511 is formed on one side wall of the regular polygonal column 51, and a limiting pin 58 is sleeved in the limiting groove 511, and the limiting pin 58 is fixed on the core shaft 4;

[0037] When the lower end of the limiting groove 511 is pressed against the limiting pin 58 , the pressing plate 55 is in a horizontal state.

[0038] Specifically, the driving mechanism 7 includes a first motor 71 fixed on the lifting bracket 61 , a gear 72 is fixed on the motor shaft of the first motor 71 , the gear 72 is meshed with an inner gear ring 73 , and the inner gear ring 73 is fixed to the lower end of the core shaft 4 .

[0039] Furthermore, the lower end of the core shaft 4 is formed with a countersunk hole 45 with a lower opening, and a boss 46 is formed in the middle of the countersunk hole 45;

[0040] The lifting mechanism 6 further includes a second telescopic cylinder 62 fixed on the lifting bracket 61, and a telescopic rod of the second telescopic cylinder 62 is fixed with a top block 64 through a push-pull rod 63, and the top block 64 is pressed against the lower bottom surface of the boss 46; a spring support seat 65 is provided on the outer side of the top block 64, and the spring support seat 65 is fixed on the boss 46, and a compression spring 66 is sandwiched between the lower bottom surface of the top block 64 and the lower bottom surface of the spring support seat 65;

[0041] The lower end of the lifting bracket 61 is inserted into two vertically arranged guide rods 67, and the two ends of the guide rods 67 are respectively fixed to the upper support plate 68 and the base 1, and the upper support plate 68 is fixedly connected to the inner wall of the guide column 11;

[0042] A screw rod 69 arranged parallel to the guide rod 67 is rotatably connected between the upper support plate 68 and the base 1 via a bearing, and the lower end of the lifting bracket 61 is screwed on the screw rod 69; a servo motor 60 is fixed on the base 1 to drive the screw rod 69 to rotate.

[0043] Furthermore, a circular limiting sleeve 611 is formed on the upper end of the lifting bracket 61 , and the outer diameter of the circular limiting sleeve 611 is clearance-matched with the inner diameter of the counterbore 45 .

[0044] Working principle: The rotor punch is punched downward by the punching machine. During the automatic falling process, the rotor punch is automatically inserted into the core shaft 4 through the guiding effect of the cone 41 of the core shaft 4, and then the rotor punch 9 is automatically punched through the intermediate cylinder 22;

[0045] The next rotor punching sheet that falls is placed on the previous rotor punching sheet. If the next rotor punching sheet that falls is exactly aligned with the previous rotor punching sheet, the next rotor punching sheet is just inserted into the previous rotor punching sheet and automatically stacked together. If the next rotor punching sheet is not aligned with the previous rotor punching sheet, the next rotor punching sheet is placed on the buckle of the previous rotor punching sheet.

[0046] Regardless of whether the rear rotor punch is aligned with the front rotor punch, after the rear rotor punch is inserted into the core shaft 4, the first motor 71 drives the gear 72 to rotate, and the gear 72 drives the core shaft 4 to rotate through the inner gear ring 73 (the core shaft can also be in a state of rotation all the time); then the first telescopic cylinder 57 drives the regular polygonal column 51 to move upward, the regular polygonal column 51 drives multiple racks 52 to move upward, and multiple racks 52 drive the corresponding half gears 53 to rotate, and the half gear 53 drives the pressure plate 55 to flip it to make it in a horizontal state; driven by the core shaft 4, the pressure plate 55 also rotates with the core shaft; then the second telescopic cylinder 62 drives the top block 64 to move downward through the push-pull rod 63, and the core shaft 44 is under the action of its own gravity and the compression spring. The mandrel drives the pressure plate 55 to move downward, and the pressure plate 55 drives the rubber pad 56 to move downward and press against the uppermost rotor punching. The mandrel drives the rotor punching to rotate through the pressure plate and the rubber pad 56. Since the compression spring provides a downward pressure on the mandrel, when the slot of the rotor punching is aligned with the buckle of the rotor punching below it, the mandrel drives the rotor punching to automatically move downward and insert it into the rotor punching below, so that they are aligned and stacked; the two rotor punchings can be tightly adsorbed to each other due to their materials (generally silicon steel sheets); then the second telescopic cylinder 62 and the first telescopic cylinder respectively drive the top plate 64 to move upward and reset and the regular polygon column 51 to move downward and reset, and the pressure plate automatically rotates back to the gear groove;

[0047] Then the servo motor drives the screw 69 to rotate a certain angle, and the screw 69 drives the lifting bracket 61 to move up to the height of the thickness of a rotor punching sheet, and then the next rotor punching sheet that automatically falls onto the core shaft is stacked;

[0048] When the rotor punching sheets are stacked to a certain height, the servo motor drives the screw 69 to rotate in the opposite direction, and the screw 69 drives the lifting bracket 61 to move downward. The lifting bracket drives the core shaft to move downward through the second telescopic cylinder 62, the push-pull rod, the top block, the compression spring and the spring seat, and moves the core shaft down to the bottom of the stacked rotor punching sheets; then the electromagnet 31 is closed to release the binding effect of the electromagnet on the lowest few rotor punching sheets, and then the linear module 25 drives the slider 26 to move downward, and the slider 26 drives the connecting block 24 to move downward, and the connecting block 24 drives the punching sheet receiving barrel 2 to move downward through the lower barrel 23 and move down to the bottom of the stacked rotor punching sheets. The stacked rotor punching sheets are stacked on top of the guide column due to the blocking effect of the guide column, and then the staff takes them out or other mechanical equipment pushes them away from the guide column.

[0049] Finally, the above implementation modes are only used to illustrate the present invention, and are not intended to limit the present invention. Ordinary technicians in the relevant technical field may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention. The scope of patent protection of the present invention should be defined by the claims.

Claims

1. A rotor punching automatic buckle stacking device, comprising a base (1), characterized in that: A guide column (11) is formed at the upper end of the base (1), a liftable punching sheet receiving cylinder (2) is sleeved on the guide column (11), and a punching sheet anti-slip mechanism (3) is provided at the bottom of the punching sheet receiving cylinder (2); a core shaft (4) coaxially arranged therewith is sleeved inside the punching sheet receiving cylinder (2), a sheet pressing mechanism (5) is provided at the upper end of the core shaft (4), and a lifting mechanism (6) for driving the core shaft (4) to move up and down is provided at the lower end of the core shaft (4), and the lifting mechanism (6) comprises a lifting bracket (61), and a driving mechanism (7) for driving the core shaft (4) to rotate is provided on the lifting bracket (61); The upper end of the core shaft (4) is formed with a cone (41) and a regular polygonal hole (42) with an upper opening, each side of the regular polygonal hole (42) is formed with a rack groove (43), and the outer wall of the upper end of the core shaft (4) is formed with a plurality of gear grooves (44) corresponding to and communicating with the plurality of rack grooves (43); The sheet pressing mechanism (5) comprises a regular polygonal column (51) matched with the regular polygonal hole (42), a rack (52) is fixed on each side of the regular polygonal column (51), each rack (52) is meshed with a half gear (53), the half gear (53) is inserted in the gear groove (44), the half gear (53) is hinged on the gear shaft (54) through a bearing, and the gear shaft (54) is inserted and fixed on a corresponding gear groove (44); a pressing plate (55) is fixed on the outer wall of the half gear (53), and a rubber pad (56) is fixed on the end of the pressing plate (55) away from the half gear (53); The lower end of the regular polygonal column (51) is fixedly connected to the telescopic rod of the first telescopic cylinder (57), and the first telescopic cylinder (57) is fixed on the bottom surface of the regular polygonal hole (42); The lower end of the core shaft (4) is formed with a countersunk hole (45) with a lower opening, and the middle of the countersunk hole (45) is formed with a boss (46); The lifting mechanism (6) further comprises a second telescopic cylinder (62) fixed on the lifting bracket (61); the telescopic rod of the second telescopic cylinder (62) is fixed with a top block (64) via a push-pull rod (63); the top block (64) is pressed against the lower bottom surface of the boss (46); a spring support seat (65) is provided on the outer side of the top block (64); the spring support seat (65) is fixed on the boss (46); a compression spring (66) is sandwiched between the lower bottom surface of the top block (64) and the lower bottom surface of the spring support seat (65); The lower end of the lifting bracket (61) is inserted into two vertically arranged guide rods (67), the two ends of the guide rods (67) are respectively fixed to the upper support plate (68) and the base (1), and the upper support plate (68) is fixedly connected to the inner wall of the guide column tube (11); A screw rod (69) arranged parallel to the guide rod (67) is rotatably connected between the upper support plate (68) and the base (1) via a bearing, and the lower end of the lifting bracket (61) is screwed onto the screw rod (69); a servo motor (60) for driving the screw rod (69) to rotate is fixed to the base (1).

2. The rotor punching automatic buckle stacking device according to claim 1, characterized in that: The punching sheet receiving cylinder (2) comprises an upper conical cylinder (21), an intermediate cylinder (22) and a lower cylinder (23) which are integrally formed; the upper conical cylinder (21) is larger at the top and smaller at the bottom, the inner diameter of the intermediate cylinder (22) is configured to be clearance-matched with the outer diameter of the rotor punching sheet (9), and the inner diameter of the lower cylinder (23) is configured to be clearance-matched with the outer diameter of the guide column cylinder (11); The lower tube (23) is inserted into the guide column tube (11); a connecting block (24) is fixed on the inner wall of the lower tube (23); the connecting block (24) is fixed on a slider (26) of a linear module (25); the linear module (25) is vertically arranged and fixed in the guide column tube (11); the slider (26) and the connecting block (24) are inserted into the slot (12) of the guide column tube (11).

3. The rotor punching automatic buckle stacking device according to claim 2, characterized in that: The punching sheet anti-slip mechanism (3) comprises a plurality of electromagnets (31) fixed on the lower bottom surface of the intermediate cylinder (22); the rotor punching sheet (9) is attracted by the electromagnets (31).

4. The rotor punching automatic buckle stacking device according to claim 1, characterized in that: A limiting groove (511) is formed on one side wall of the regular polygonal column (51), a limiting pin (58) is sleeved in the limiting groove (511), and the limiting pin (58) is fixed on the core shaft (4); When the lower end of the limiting groove (511) is pressed against the limiting pin (58), the pressing plate (55) is in a horizontal state.

5. The rotor punching automatic buckle stacking device according to claim 1, characterized in that: The driving mechanism (7) comprises a first motor (71) fixed on the lifting bracket (61), a gear (72) being fixed on the motor shaft of the first motor (71), the gear (72) being meshed with an inner gear ring (73), and the inner gear ring (73) being fixed on the lower end of the core shaft (4).

6. The rotor punching automatic buckle stacking device according to claim 1, characterized in that: A circular limiting sleeve (611) is formed on the upper end of the lifting bracket (61), and the outer diameter of the circular limiting sleeve (611) is clearance-matched with the inner diameter of the countersunk hole (45).

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