CN2318448Y

CN2318448Y - Motor coupling

Info

Publication number: CN2318448Y
Application number: CN 96201769
Authority: CN
Inventors: 高影利
Original assignee: BEIJING AQI INDUSTRY ELECTRONIC Co Ltd
Current assignee: BEIJING AQI INDUSTRY ELECTRONIC Co Ltd
Priority date: 1996-01-26
Filing date: 1996-01-26
Publication date: 1999-05-12
Anticipated expiration: 2006-01-26

Abstract

The utility model provides a motor coupling, which is a coupling of a motor and a wire winding drum of an electric spark wire cutting machine tool. The utility model is composed of the couplings C7 and D9, and a buffer sleeve E8, wherein, the buffer sleeve B8 is installed in the couplings C7 and D9; convex tooth claws and a groove are symmetrically and equally divided; each convex tooth claws which are positioned on the coupling are respectively inserted into the groove of the buffer sleeve B8. The performance of uniformly and equally dividing and accuracy are easily ensured by the couplings C7 and D9 and the buffer sleeve B8, the strength of the utility model can bear shearing force and impact force, the buffer sleeve B8 is made from elastic materials, the vibrations are reduced, the utility model ensures that the motive power of the motor can be smoothly transferred, the phenomenon of rupture can not be occurred, and the cost is reduced.

Description

A kind of motor coupling

The utility model relates to the coupling of a kind of wire cut electric discharge machine wire storage tube and motor.

Wire cut electric discharge machine is to realize the processing to workpiece by the wire electrode of high-speed motion and the sparkover between the workpiece (i.e. the rotten processing of electricity), its wire electrode is wrapped on the wire storage tube, motor drives the forward and reverse high-speed motion of wire storage tube by coupling, thereby makes wire electrode produce frequent forward and reverse high-speed motion.The public wire cut electric discharge machine wire storage tube and the coupling of motor, its wire storage tube 6 connects with motor 5, the lock shaft elastic coupling flexible couplings (as Fig. 1) that adopt more, coupling A1 is fixedlyed connected with motor reel, the rotatingshaft of coupling B2 and wire storage tube 6 is fixedly connected, cushion collar A4 is installed in the circular hole of coupling B2, and coupling A1 and coupling B2 are by a plurality of pin shaft holes, and be fixedly connected with bearing pin 3.The deficiency of this motor coupling is, under condition cheaply, the five equilibrium uniformity of the pin shaft hole of coupling A1 and coupling B2 is difficult to guarantee, thereby makes bearing pin 3 discontinuity; Bearing pin 3 also is difficult to guarantee evenly with the interference fit of coupling A1 simultaneously; And wire storage tube 6 is under the drive of motor, the forward and reverse starting of high speed continually, commutation, and bearing pin need bear forward and reverse shearing force continually and impact.In this case, the work of long period can make bearing pin 3 that fatigue damage so that fracture take place one by one.

The purpose of this utility model is: propose the new design of a kind of motor coupling (as Fig. 2), remove and be difficult to accurately processing and pin shaft structure anti-shearing, the anti-impact force difference, reduce shearing force greatly and reduce the impact force that unit area is born on the parts; Its structure is again the processing easily of common gold machining machinery, can cushion forward and reverse impact, reduces to vibrate.The power of guaranteeing motor transmits reposefully, thereby reach phenomenon of rupture does not take place, the purpose that reduces cost and raise the efficiency.

The utility model is made up of coupling C7 and coupling D9 and cushion collar B8.Coupling C7 and coupling D9 are two identical parts that symmetrical dog 10 is arranged, and are the flange plate that the symmetrical double wedge pawl of having of center hole is arranged, and on its end face, respectively are distributed with the double wedge pawl 10 that number is less than or equal to ten protrusion; Cushion collar B 8 has center hole, has the disk of groove 11, a plurality of grooves 11 that distributing accordingly on the dish, and the number of its groove 11 equals the sum total of coupling C7 and coupling D9 double wedge pawl 10 quantity.The double wedge pawl of coupling C7 and D9 is relative and adorn to the double wedge pawl during installation, and cushion collar B8 is contained in the centre of coupling C7 and coupling D9, and its double wedge pawl 10 separately inserts respectively in the groove 11 of cushion collar B8.

The utility model has the advantages that: the groove 11 of hock on coupling C7, coupling D9 part and cushion collar B8 is five equilibriums of symmetry, just can guarantee the uniformity and the accuracy of its five equilibrium adding man-hour common gold machining machinery, and its structure is easy to process.Because the moment of rotation of motor, directly pass through coupling C7 and coupling D9 double wedge pawl 10 and, structurally do not have shearing work face, significantly reduced shearing force through cushion collar B8 buffering, and the transmission area of power is big between the double wedge pawl, has reduced the impact force that unit area is born greatly.Its cushion collar B8 is an elastic material, can cushion forward and reverse impact, reduces vibration, has guaranteed that the power of motor transmits reposefully.Phenomenon of rupture not taking place, reduced cost, has improved efficient.

The utility model has following accompanying drawing:

Fig. 1 is the coupling schematic representation of known wire cut electric discharge machine wire storage tube and motor;

Wherein each parts is: coupling A1, coupling B2, bearing pin 3, cushion collar A4, motor 5 and wire storage tube 6.

Fig. 2 is the schematic representation of the utility model coupling;

Constitute by coupling C7 coupling D9 and cushion collar B8.

Fig. 3 is the schematic representation of a kind of embodiment's of the present utility model cushion collar B8;

This embodiment has four grooves 11.

Fig. 4 be and the same embodiment of Fig. 3 in the schematic representation of coupling;

Its coupling C7 and coupling D9 are identical two parts, and the number of the double wedge pawl 10 that its axisymmetric distributes is respectively 2.

Fig. 5 is the A-A sectional view of Fig. 4;

The number of figure convexity hock 10 is 2

The utility model has following examples (seeing Fig. 3, Fig. 4 and Fig. 5), and in the present embodiment, coupling C7 and coupling D9 and cushion collar B8 have formed present embodiment.Wherein coupling C7 and coupling D9 are two identical parts that symmetrical dog 10 is arranged, and are flange plate that the symmetrical double wedge pawl of having of center hole is arranged, and on its end face, respectively are distributed with the double wedge pawl 10 of two protrusions; Cushion collar B 8 has center hole, has the disk of groove 11, and four grooves 11 are symmetrically distributing on the dish.The double wedge pawl of coupling C7 and coupling D9 is relative and adorn to the double wedge pawl during installation, and cushion collar B8 is contained in the centre of coupling C7 and coupling D9, and its double wedge pawl 10 separately inserts respectively in the groove 11 of cushion collar B8.

Claims

1. the coupling of wire cut electric discharge machine wire storage tube and motor, by coupling C (7) and coupling D (9) and cushion collar E (8) formation, it is characterized in that, coupling C (7) and coupling D (9), be two identical parts that symmetrical dog (10) are arranged, be the flange plate that the symmetrical double wedge pawl of having of center hole is arranged, on its end face, respectively be distributed with the double wedge pawl (10) that number is less than or equal to ten protrusion; Cushion collar B (8) has center hole, has the disk of groove (11), a plurality of grooves (11) that distributing symmetrically on the dish, and the number of its groove (11) equals the sum total of coupling C (7) and coupling D (9) double wedge pawl (10) quantity; The double wedge pawl of coupling C (7) and coupling D (9) is relative and adorn to the double wedge pawl during installation, and cushion collar B (8) is contained in the centre of coupling C (7) and coupling D (9), and its double wedge pawl (10) separately inserts respectively in the groove 11 of cushion collar B (8).

2. according to the said coupling of claim 1, it is characterized in that cushion collar B (8) makes with elastic material.