CN2052984U - Slot wedge storage device and push rod - Google Patents

Abstract

The utility model relates to a slot wedge storage device and a push rod. Because of the comparatively complicated shapes, slot wedge storage devices and push rods in present inserting tools for stators of small motors have the disadvantages of difficult making, easy deformation after heat treatment, disturbance to quality of fit and interchanging performance, production of frictional resistance when the slot wedge is pushed and occurrences of slippage or squeeze, which damage the slot wedge. The utility model improves the present structure: a groove with the cross section of 1*0.5 square millimeters is arranged on the slot wedge storage device, and both sides of the push rod protrude out the two wings of the same cross section and are glidingly fitted with the groove of the storage device exactly, holding the two sides of the concave slot wedge by means of the protruding wings and pushing the two sides of the concave slot wedge into the stator slot. The adoption of the structure has the advantages of machining manhour saving, cost saving and wiring quality enhancement.

Description

Slot wedge storage device and push rod

The utility model relates to special-purpose slot wedge container and the pusher structure in a kind of small machine stator built-in line instrument, belongs to the motor inserting tool.

The small machine stator built-in line generally adopts mechanization rule equipment now, and the mechanism of a soft slot wedge of automatic punching out is generally all arranged in this equipment prior art at home and abroad, and wherein slot wedge container and push rod are the critical components of this mechanism.The effect of these two parts is the slot wedge shaping and pushes in the stator slot.But this technical process has such problem, because slot wedge material mostly adopts 0.2 millimeters thick composite film material, it is poured the inner chamber of container, rely on the elastic force of slot wedge self both sides to be stretched on inner chamber two walls, in coil embeds stator slot simultaneously, frictional resistance when push rod promotion slot wedge overcomes rule makes the topped notch of slot wedge.But the sectional area shape of push rod is difficult to reach accurate sliding joining with the container inner chamber, so will produce extruding or skidding between the slot wedge of push rod and 0.2 millimeters thick, influences the rule quality.

In order to address this problem, common way is the distortion after improving the push rod dimensional accuracy of slot wedge container and reducing heat treatment, adopts superior in quality slot wedge material in addition.The rule equipment of state such as Germany, Japan is all solved with this.Increase equipment cost and motor processing cost undoubtedly but do like this, can not improve the rule quality greatly.

The purpose of this utility model is that a kind of improved slot wedge container and push rod will be provided, and it not only can reach the precision cunning of push rod cross sectional shape and slot wedge container joins, extruding or skidding when overcoming rule, and make device fabrication convenient, reduce equipment cost.

Task of the present utility model is achieved in that on " recessed " inner chamber of slot wedge container opens Baltimore groove, makes protruding both wings limit at the front end of push rod, makes concavo-convex matching, thereby has guaranteed the rule quality.

The utility model is because only need to change structure on original slot wedge container and push rod, so process fairly simple.Because the advantage of this improved structure has reduced machining and heat treated requirement, equipment cost is reduced, the also reduction relatively of forming property requirement to slot wedge material not only can improve the rule quality, and significantly economic benefit is arranged.

Concrete structure of the present utility model is provided by following examples and accompanying drawing.

Fig. 1 is the rule head superstructure schematic diagram of small machine rule equipment of the prior art.

Fig. 2 is Figure 1A-A profile.

Fig. 3 is the structure chart of existing slot wedge container.

Fig. 4 is the structure chart of existing push rod.

Fig. 5 is slot wedge storage structure figure of the present utility model.

Fig. 6 is pusher structure figure of the present utility model.

Fig. 7 is the partial enlarged drawing of Fig. 5.

Fig. 8 is the partial enlarged drawing of Fig. 6.

Referring to figs. 1 through Fig. 4 prior art is described further, thus the improved essence of the utility model as can be seen.Push in stator 1 groove when coil 6 is cut somebody's hair 7 risings among Fig. 1, push rod 3 is a kind of elongated metallic rod, by slot wedge container 2 slot wedge 5 is pushed (topped notch) in the stator slot.Container 2 refers to 4 couplings in pairs with leading, and their number equals number of stator slots, and " recessed " shape inner chamber that container 2 is formed is used for receiving and storing " recessed " shape slot wedge.These slot wedges 5 because the drift in the jet-bedding mechanism pours container, are stretched in by the elastic force of it self both sides on the wall of inner chamber of container 2.Fig. 3, Fig. 4 have provided the structure of slot wedge container and push rod respectively, the former cross section in echelon, spill is processed in both sides; The latter is elongated metal flat strip, and front end is opened a groove for the inclined-plane lower rear.Thin and long units (1400 about millimeters, about 5 * 5 millimeters of B * h) heat treatment is yielding like this.Container 2 is complex-shaped; manufacturing procedure is many; accumulated error is big; " recessed " shape inner chamber of the container that is combined into is difficult to the push rod cross sectional shape in full accord; therefore regular meeting produces extruding and skidding between above-mentioned push rod and the slot wedge when push rod is mobile in slot wedge, has a strong impact on the rule quality thereby damage slot wedge.Because the accuracy of manufacture still can not reach the requirement of any exchange, so transposing difficulty during maintenance.

With reference to Fig. 5 to Fig. 8, the utility model has carried out new improvement to two above-mentioned parts.Fig. 5 and Fig. 7 are slot wedge container 2 ', open Baltimore groove 9 thereon, Fig. 6 and Fig. 8 are push rod 3 ', protrude both wings limit 8 at its front end, in order to make 8 one-tenth sliding fits of above-mentioned groove 9 and both wings limit, their sectional area is 1 * 0.5 square millimeter, rely on push rod two to protrude " recessed " shape slot wedge 5 is just in time withstood in wing limit in " recessed " shape inner chamber of container dual-side bottom, it can push slot wedge in the stator slot very wellly, can not produce any extruding and skidding, and the cooperation of the size at other positions of push rod 3 ' and container 2 can be loosened.This structural design, very convenient through testing, processing, also can exchange during maintenance.

Claims (2)

1, to be that elongate section is long-pending be down trapezoidal metal pushrod for slot wedge container and the push rod in a kind of novel small machine stator built-in line instrument, its shape and structure to be that slot wedge container 2 is identical with the stator inside groove be " recessed " shape inner chamber, push rod, it is characterized in that:

A, described " recessed " shape inner chamber 2 ' on have Baltimore groove 7,

B, described push rod 3 ' front end protrude both wings limit 8.

2, slot wedge container according to claim 1 and push rod is characterized in that, the groove 9 of slot wedge container 2 ' and 8 its sectional areas of the both wings limit on the push rod 3 ' are 1 * 0.5 square millimeter.

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