Expandable mould tool of cam structure for laminating stator core

Abstract

The utility model discloses an expandable mould tool of a cam structure for laminating a stator core. The expandable mould tool comprises a cam, a main shaft, a spring, a spoke rib, a gear set and a hand wheel, a plurality of amplitude ribs are distributed on the periphery of the main shaft; a plurality of groups of cams are fixedly arranged on the main shaft; the amplitude rib is in close contact with the cam through the spring, and the outer diameter of the amplitude rib is controlled through the cam; the hand wheel is connected with the main shaft through the gear set and controls the main shaft to rotate, and the main shaft drives the cam to rotate to control amplitude rib adjustment. According to the utility model, the three groups of cams are arranged and rotate 90 degrees relatively, so that the adjustment amounts of the four amplitude ribs are equal at the same time, the outer diameters of the amplitude ribs are controlled through the cams, the size of the mould is adjusted, the number of moulds is reduced, and a reasonable gap between the inner diameter of a stator and the mould is ensured. The rotating hand wheel is driven through a gear, the size of the mould is accurately adjusted, and the adjusting precision is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to stator press mounting technical field, concretely relates to the cam structure's expandable mould tool for stator core lamination. BACKGROUND

[0002] With the diversification of stator inner diameter, different stator inner diameter needs corresponding stator press mounting mould. The stator inner diameter of the punching piece of large motor is punched by a punching groove machine, and the deviation of the stator inner diameter of different batches is large, causing the cooperation of the stator and the mould to be tight or loose, the tight leads to the inner diameter of the stator core being damaged, causing the iron loss of the core to increase, and the loose stator machining leads to the eccentricity of the outer diameter and the inner diameter of the core, causing the air gap of the motor to be uneven, causing the motor to vibrate.

[0003] Therefore, it is necessary to design a mould tool with reduced mould quantity investment and reasonable gap between the stator inner diameter and the mould. INVENTION CONTENTS

[0004] The utility model wants to solve the technical problem to provide a kind of cam structure's expandable mould tool for stator core lamination, can adjust the size of mould according to the inner diameter of punching piece, ensure the reasonable gap between the stator inner diameter and the mould.

[0005] To solve the above technical problems, the utility model takes the following technical scheme: the cam structure's expandable mould tool for stator core lamination, including cam, main shaft, spring, width rib, gear set and hand wheel;

[0006] The outer periphery of the main shaft is distributed with multiple width ribs;A plurality of sets of cams are fixedly arranged on the main shaft;The width rib is in close contact with the cam through the spring, and the size of the outer diameter of the width rib is controlled by the cam;

[0007] The hand wheel is connected with the main shaft by the gear set, controls the rotation of the main shaft, and the main shaft drives the rotation of the cam to control the adjustment of the width rib.

[0008] Further, the main shaft is provided with three sets of cams at equal intervals along the length direction.

[0009] Further, four cam discs are arranged in each set of cams, and the cam discs in each set of cams are relatively rotated by 90 degrees.

[0010] Further, the gear set includes gear one and gear two, the gear shaft of the gear one is fixedly connected with the rotating shaft of the hand wheel, and the gear two is fixedly connected with the main shaft by being sleeved on the outer periphery of the main shaft.

[0011] Further, a scale disc is arranged on the hand wheel.

[0012] The utility model has the advantages that:

[0013] 1) The utility model discloses a three groups of cams are set up, and the cam is opposite rotation 90, realizes four width of muscle equal adjustment amount simultaneously, and the size of the width of muscle outer diameter is controlled through the cam, realizes the adjustment of the mould size, reduces the input of the quantity of mould, guarantees the reasonable clearance of stator inner diameter and mould.

[0014] 2) The utility model discloses a hand wheel is rotated through gear drive, and the size of the mould is accurately adjusted, and the precision of adjustment is improved. DRAWINGS

[0015] The utility model will be further described below in combination with the drawings and examples.

[0016] Figure 1 It is the structure schematic diagram of the utility model.

[0017] Figure 2 It is the plan view of the utility model. CONCRETE IMPLEMENTING METHOD

[0018] The technical scheme of the utility model will be clearly and completely described below through concrete implementing method.

[0019] REFERENCE Figure 1 and Figure 2 It is a kind of stator core laminating cam structure's inflatable mould tool of the utility model, including shell, cam 1, main shaft 2, spring 3, width of muscle 4, gear set 5 and hand wheel 6;

[0020] The main shaft 2 of this embodiment is arranged inside the shell, and the two ends extend out of the outer periphery of the shell and are rotatably connected to the outer periphery through bearings. The main shaft and the shell are coaxially arranged, and the outer periphery of the shell and the main shaft is provided with a plurality of width of muscle 4.

[0021] The width of muscle 4 includes a strip-shaped plate body arranged on the outer side of the shell, a pressing block and a guide strip. The strip-shaped plate body is arranged on the outer side of the shell, and the pressing block is arranged on the inner side of the shell and located on the outer periphery of the main shaft for close contact with the cam set. The guide strip is used to connect the pressing block and the strip-shaped plate body. The side wall of the shell is provided with a guide slot hole for the movement of the guide strip, and the outer periphery of the strip-shaped plate body is a curved surface structure. One side of the guide strip is connected to the shell through the spring 3, and the size of the outer diameter of the width of muscle 4 is controlled through the cam to adjust the outer diameter of the width of muscle 4.

[0022] Three groups of cams 1 are fixedly arranged on the main shaft 2 of this embodiment, and four cam discs are arranged in each group of cams 1. The cam discs in each group of cams 1 are relatively rotated by 90 degrees to realize equal adjustment amount of four width of muscle simultaneously.

[0023] The pressing block of the width of muscle 4 is in close contact with the cam 1 through the action of the spring 3.

[0024] The hand wheel 6 is connected with the main shaft 2 through the gear set 5, controls the rotation of the main shaft 2, the main shaft 2 drives the rotation of the cam 1 to control the width rib adjustment. The gear set 5 comprises gear one and gear two, the gear shaft of the gear one is fixedly connected with the rotating shaft of the hand wheel 6, the gear two is sleeved on the outer periphery of the main shaft 2 and is fixedly connected with the main shaft 2. The hand wheel 6 is provided with a scale disc 7.

[0025] When the stator core lamination cam structure expandable mold tool is working, the hand wheel 6 is manually adjusted, the angle of the rotation of the hand wheel 6 is controlled through the scale disc 7, the hand wheel 6 drives the rotation of the main shaft 2 through the gear set 5, the rotation of the main shaft 2 controls the rotation of the cam set, when the cam set rotates, the width rib 4 is driven to move outward by the pressing block or moves inward under the action of the spring, the size of the outer diameter of the width rib 4 is controlled, the size adjustment of the mold tool is realized.

[0026] The above is only the preferred embodiment of the present application, and is not used to limit the present application, and the person skilled in the art can make various modifications or equivalent replacements to the present application within the spirit and protection scope of the present application, and the modification or equivalent replacement should be regarded as falling within the protection scope of the technical scheme of the present application.

Claims

1. A stretchable mold tool for stacking a stator core with a cam structure, characterized by: It comprises cam (1), main shaft (2), spring (3), width rib (4), gear set (5) and hand wheel (6). The main shaft (2) is provided with a plurality of width ribs (4) on the outer periphery; a plurality of sets of cams (1) are fixedly arranged on the main shaft (2); the width rib (4) is in close contact with the cam (1) through the spring (3), and the size of the outer diameter of the width rib (4) is controlled through the cam. The hand wheel (6) is connected with the main shaft (2) through the gear set (5), controls the rotation of the main shaft (2), and drives the rotation of the cam (1) to control the width rib adjustment.

2. The stator core lamination cam structure expandable mold tooling according to claim 1, characterized by: The main shaft (2) is provided with three sets of cams (1) at equal intervals along the length direction.

3. The cam structure for stator core stacking according to claim 1 or 2, characterized in that: Four cam discs are arranged in each set of cam (1), and the cam discs in each set of cam (1) rotate at 90° relative to each other.

4. The cam structure for stator core stacking according to claim 1 or 2, characterized in that: The gear set (5) comprises gear one and gear two, the gear shaft of the gear one is fixedly connected with the rotating shaft of the hand wheel (6), and the gear two is sleeved on the outer periphery of the main shaft (2) and fixedly connected with the main shaft (2).

5. The stator core lamination camming structure expander tooling fixture of claim 1 wherein: The hand wheel (6) is provided with a scale disc (7).

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