Auto-buckled motor core laminated riveting force testing mechanism and method

A testing mechanism and iron core technology, applied in the direction of applying stable tension/pressure to test the strength of materials, measuring devices, instruments, etc., can solve the problems of high operating ability requirements, easy instability of punching sheets, and affecting test accuracy, etc., to achieve The consistency of the screw-in depth is good, the precision of the tensile test is high, and the effect of improving the test accuracy

CN107764648AInactive Publication Date: 2018-03-06SHIMGE PUMP IND GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-03-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to an auto-buckled motor core laminated riveting force testing mechanism and method. The problems that the conventional testing mechanism is unfavorable for balanced force measurement and large in test errors and the like are solved. With the adoption of the technical scheme, the testing mechanism comprises a wire thread insert and a tensile tool, wherein an axial wire threadinsert assembling hole is formed in an auto-buckled core; the wire thread insert is arranged in the wire thread insert assembling hole and is screwed with the wire thread insert assembling hole; anda bottom plate of the tensile tool is respectively buckled to two ends of the auto-buckled core and passes through a wire thread insert inner hole corresponding to the bottom plate by virtue of a screw so as to form screw joints in one-to-one correspondence with the wire thread insert. The testing mechanism has the technical effects that the wire thread insert is a whole, is fixed in a core screwhole and is tightly combined with the screw hole, and the overall rigidity of the core thread is excellent. During stretching, tension applied to the screw is transferred to the thread of the core screw hole by virtue of the wire thread insert, the stress of each punch is uniform, and the tensile testing precision is high.
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Description

technical field

[0001] The invention relates to a test mechanism and a test method for the stacking riveting force of a self-fastening iron core of a motor. Background technique

[0002] The self-fastening iron core of the motor stator and the self-fastening iron core of the rotor are both formed by lamination of punched sheets. The punches of each layer are connected into one body through the self-fastening riveting points uniformly distributed along the circumference on the end faces of the adjacent punches.

[0003] The riveting point is punched out by the die on the punching sheet, and the riveting point protrudes from one side of the punching sheet and forms a depression on the other side of the punching sheet. The male end of the rivet point of one punch is pressed into the concave end of the other punch rivet point, and the two punches are connected together by friction between the rivet points.

[0004] The reliability of the riveting of the self-buckle riveting po...

Examples

Embodiment

[0050] Example: such as Figure 1-Figure 3 As shown, the motor self-fastening iron core stack riveting force testing mechanism includes a wire screw sleeve and a tensile tooling. The self-fastening iron core 1 is provided with an axial wire screw sleeve fitting hole 11, and the wire screw sleeve 2 is arranged on The steel wire screw set fitting holes 11 are screwed to the steel wire screw set fitting holes. The bottom plates 31 of the stretching tooling 3 are respectively buckled on the two ends of the self-fastening iron core, and passed through by the screws 4. The bottom plate corresponds to the inner hole of the wire screw sleeve, and forms a one-to-one corresponding screw connection with the wire screw sleeve.

[0051] Fit the steel wire screw into the hole of the steel wire screw, and then fix the test work to the iron core through the screw matched with the steel wire screw, so as to overcome the unfavorable situation caused by the direct cooperation of the screw with t...