Punching sheet positioning device for assembling rotor iron core

Abstract

The utility model discloses a punching sheet positioning device for assembling a rotor core, which comprises a workbench, a sleeve column for stacking a plurality of punching sheets is fixed on the upper surface of the workbench, the bottom of the sleeve column is integrally connected with a base, the base is connected with the workbench through a mounting bolt, the lower end of the outer side surface of the sleeve column is provided with a chassis, and the chassis is connected with the workbench through a mounting bolt. The punching sheet positioning device comprises a base plate, through holes corresponding to a circle of hole positions on a punching sheet are uniformly distributed on the base plate, fixing mechanisms for preventing the punching sheet from shifting are symmetrically arranged on two sides of the base plate, the punching sheet positioning device for assembling the rotor iron core can position the punching sheet, prevent the punching sheet from shifting in a copper bar pressing process, and improve the punching sheet penetrating efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of motor rotor production, in particular to a punching sheet positioning device for rotor core assembly. Background Art

[0002] The rotor core is one of the important components of the motor. The rotor core is composed of multiple silicon steel punchings, which need to be connected together with copper bars to form a closed loop.

[0003] When threading the existing copper bars, the copper bars are aligned with the holes on the punching sheets and then pressed. During the pressing process, since the punching sheets are stacked together, the punching sheets are easily displaced by force. Once a punching sheet is displaced, the copper bar cannot be passed through, thereby affecting the threading efficiency. When the copper bar is pressed down to align with the holes on the punching sheets, the copper bar is easily skewed by force, which also affects the threading efficiency of the punching sheets. Summary of the invention

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a punching plate positioning device for rotor core assembly, which can position the punching plate to prevent the punching plate from shifting during the copper bar pressing process, and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a punching sheet positioning device for rotor core assembly, comprising a workbench, a sleeve column for stacking multiple punching sheets fixed to the upper surface of the workbench, a base integrally connected to the bottom of the sleeve column, the base and the workbench are connected by mounting bolts, a chassis is provided at the lower end of the outer side surface of the sleeve column, through holes are evenly distributed on the chassis corresponding to a circle of holes on the punching sheet, and fixing mechanisms are symmetrically provided on both sides of the chassis to prevent the punching sheet from shifting.

[0006] As a preferred technical solution of the utility model, the fixing mechanism includes a clamping strip, an electric telescopic rod and a support seat, the electric telescopic rod is fixed on one side of the support seat, the telescopic end of the electric telescopic rod is connected to the clamping strip, and the support seat is fixed to the workbench by fixing bolts.

[0007] As a preferred technical solution of the utility model, the clamping strip is made of hard rubber material.

[0008] As a preferred technical solution of the utility model, the outer side surface of the lower end of the chassis is integrally connected with a screw sleeve, the outer side surface of the lower end of the sleeve column is provided with an external thread, and the screw sleeve is threadedly connected to the lower end of the sleeve column.

[0009] As a preferred technical solution of the utility model, a press-fit positioning mechanism for preventing the copper strip of the pressed punch from being skewed is arranged directly above the sleeve column.

[0010] As a preferred technical solution of the utility model, the press-fit positioning mechanism includes a vertical rod, a connecting plate, an adjusting nut and a limit plate. There are two vertical rods, and the two vertical rods are symmetrically fixed on the other two sides of the chassis. The limit plate has the same structure as the chassis. The limit plate is located directly above the sleeve and the limit plate is coaxial with the chassis. The outer side surface of the limit plate is symmetrically provided with connecting plates, and the two connecting plates are respectively sleeved on the outer sides of the two vertical rods. The upper end of the vertical rod is provided with an external thread, and adjusting nuts are provided on the upper and lower surfaces of the connecting plate.

[0011] As a preferred technical solution of the utility model, there are two limit plates, and the two limit plates are arranged along the height direction of the vertical rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: the punching sheet positioning device for rotor core assembly has a compact structure, reasonable design, and easy operation. By setting a sleeve column, it is convenient to sleeve the punching sheets on the sleeve column in sequence. By setting a chassis at the lower end of the sleeve column, it is convenient to correspond the holes on the punching sheets with the hole positions on the chassis. By setting fixing mechanisms on both sides of the chassis, after the punching sheets are placed, the outer side surfaces of the punching sheets can be clamped and fixed by the fixing mechanisms to prevent the punching sheets from shifting. At the same time, a press-fitting positioning mechanism is set, which can guide the copper bars during the press-fitting process to prevent the copper bars from skewing, thereby greatly improving the threading efficiency of the punching sheets. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is the front view of the utility model;

[0015] Figure 3 It is the left view of the utility model.

[0016] In the figure: 1 workbench, 2 sets of columns, 3 base, 4 mounting bolts, 5 chassis, 6 fixing mechanism, 61 clamping strip, 62 electric telescopic rod, 63 support seat, 64 fixing bolt, 7 press-fit positioning mechanism, 71 vertical rod, 72 connecting plate, 73 adjusting nut, 74 limit plate, 8 threaded sleeve. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments (for the convenience of description and understanding, the following is a schematic diagram of the present invention). Figure 2 Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0018] See also Figure 1-3 The utility model provides a technical solution: a punching plate positioning device for rotor core assembly, comprising a workbench 1, a sleeve column 2 for stacking a plurality of punching plates is fixed on the upper surface of the workbench 1, a base 3 is integrally connected to the bottom of the sleeve column 2, the base 3 and the workbench 1 are connected by mounting bolts 4, a chassis 5 is arranged at the lower end of the outer side surface of the sleeve column 2, and through holes corresponding to the holes on the punching plate are evenly distributed on the chassis 5, and the size of the through holes is slightly larger than the holes on the punching plate, such as the diameter of the holes on the punching plate is The diameter of the through hole on the chassis 5 is The two sides of the chassis 5 are symmetrically provided with fixing mechanisms 6 to prevent the punching sheets from shifting;

[0019] The fixing mechanism 6 includes a clamping strip 61, an electric telescopic rod 62 and a support seat 63. The electric telescopic rod 62 is fixed to one side of the support seat 63. The telescopic end of the electric telescopic rod 62 is connected to the clamping strip 61. The support seat 63 is fixed to the workbench 1 by a fixing bolt 64. After the punching pieces are stacked in accordance with the hole positions, the electric telescopic rod 62 is started to push the clamping strip 61 to contact the outer side of the punching piece. The two clamping strips 61 clamp the punching piece to prevent it from being displaced by force during the pressing process.

[0020] The cam 73 is provided with a plurality of locking plates 74, each of which is provided with a plurality of locking plates 76, each of which is provided with a plurality of locking plates 77. The plurality of locking plates 76 are provided with plurality of locking plates 77.

[0021] Furthermore, in order to avoid damage caused by squeezing the side of the punch, the clamping strip 61 is made of hard rubber.

[0022] Furthermore, in order to perform strip threading operations on punching sheets of different models, the outer side surface of the lower end of the chassis 5 is integrally connected with a screw sleeve 8, and the outer side surface of the lower end of the sleeve column 2 is provided with an external thread. The screw sleeve 8 is threadedly connected to the lower end of the sleeve column 2. The chassis 5 is removed by rotating the screw sleeve 8 and replaced with a chassis 5 that is compatible with the corresponding model of punching sheet.

[0023] Furthermore, in order to improve the limiting capability of the copper bar, the number of the limiting plates 74 is two, and the two limiting plates 74 are arranged along the height direction of the vertical rod 71 .

[0024] When in use: fix the chassis 5 corresponding to the punching piece model on the sleeve 2 through the screw sleeve 8, the hole position on the chassis 5 corresponds to the hole position on the punching piece, and the punching piece is sequentially sleeved on the outer side of the sleeve column 2 to ensure that the hole position on the punching piece is aligned with the hole position on the chassis 5. After the punching piece is placed, turn on the electric telescopic rod 62 so that the two clamping strips 61 clamp and fix the outer side of the punching piece, and then put the limit plate 74 with the same structure as the chassis 5 on the two vertical rods 71, and fix the limit plate 74 with the adjusting nut 73. The copper bar passes through the corresponding hole on the limit plate 74 and is pressed into the hole at the upper end of the punching piece. Under the action of the limit plate 74, the pressing direction of the copper bar is ensured to always remain vertical; if the copper bar is finally located in the limit plate 74 or between the two limit plates 74, the copper bar is exposed by loosening the adjusting nut 73 and moving the limit plate 74, so that the copper bar is finally pressed into place.

[0025] The utility model can be applied to the fixation of punching sheets of different types, ensuring that the punching sheets are not easily displaced during the threading process, thereby ensuring the threading efficiency of the copper bars; by arranging a limit plate 74 just above the sleeve column 2, it can play a guiding role when the copper bars are threaded, avoiding the copper bars from tilting during the pressing process, thereby further improving the threading efficiency of the punching sheets.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A punching plate positioning device for rotor core assembly, comprising a workbench (1), characterized in that: A sleeve column (2) for stacking a plurality of punching sheets is fixed on the upper surface of the workbench (1); a base (3) is integrally connected to the bottom of the sleeve column (2); the base (3) and the workbench (1) are connected via mounting bolts (4); a chassis (5) is arranged at the lower end of the outer side surface of the sleeve column (2); through holes corresponding to the holes on a circle of punching sheets are evenly distributed on the chassis (5); fixing mechanisms (6) for preventing the punching sheets from shifting are symmetrically arranged on both sides of the chassis (5); The fixing mechanism (6) comprises a clamping strip (61), an electric telescopic rod (62) and a support seat (63); the electric telescopic rod (62) is fixed to one side of the support seat (63); the telescopic end of the electric telescopic rod (62) is connected to the clamping strip (61); and the support seat (63) is fixed to the workbench (1) via fixing bolts (64).

2. A punching sheet positioning device for rotor core assembly according to claim 1, characterized in that: The clamping strip (61) is made of hard rubber material.

3. A punching sheet positioning device for rotor core assembly according to claim 1, characterized in that: The lower outer side surface of the chassis (5) is integrally connected with a screw sleeve (8), the lower outer side surface of the sleeve column (2) is provided with an external thread, and the screw sleeve (8) is threadedly connected to the lower end of the sleeve column (2).

4. The punching sheet positioning device for rotor core assembly according to claim 1, characterized in that: A press-fit positioning mechanism (7) is arranged directly above the sleeve column (2) to prevent the pressed punch copper strip from tilting.

5. A punching sheet positioning device for rotor core assembly according to claim 4, characterized in that: The press-fit positioning mechanism (7) comprises a vertical rod (71), a connecting plate (72), an adjusting nut (73) and a limiting plate (74). The number of the vertical rods (71) is two, and the two vertical rods (71) are symmetrically fixed on the other two sides of the chassis (5). The limiting plate (74) has the same structure as the chassis (5). The limiting plate (74) is located directly above the sleeve column (2) and the limiting plate (74) is coaxial with the chassis (5). The outer side surface of the limiting plate (74) is symmetrically provided with connecting plates (72). The two connecting plates (72) are respectively sleeved on the outer side surfaces of the two vertical rods (71). The upper end of the vertical rod (71) is provided with an external thread, and the upper and lower surfaces of the connecting plate (72) are provided with adjusting nuts (73).

6. A punching sheet positioning device for rotor core assembly according to claim 5, characterized in that: There are two limit plates (74), and the two limit plates (74) are arranged along the height direction of the vertical rod (71).

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