CN202174196U

CN202174196U - Flexible connection structure for servo motor of numerical control spring coiling machine

Info

Publication number: CN202174196U
Application number: CN2011202586527U
Authority: CN
Inventors: 金苗兴; 叶景春; 董江涛
Original assignee: Zhejiang Wanneng Spring Machine Co Ltd
Current assignee: Zhejiang Wanneng Spring Machine Co Ltd
Priority date: 2011-07-21
Filing date: 2011-07-21
Publication date: 2012-03-28
Anticipated expiration: 2021-07-21

Abstract

The utility model discloses a flexible connection structure for a servo motor of a numerical control spring coiling machine, comprising a coupling head and a joint. The coupling head is a communicating tube body with different apertures at both sides. One end of the coupling head is sleeved on an output shaft of the servo motor while the other end is sleeved with the joint. The joint is sleeved with a ball-screw outside. The inner end of the joint is in pin joint with the coupling head through a first bolt pin. The utility model eliminates the concentric deviation generated when the servo motor and the ball-screw are assembled so as to connect the two accurately and the utility model is simple to assemble and has a long service life.

Description

A kind of Digital Control Plane Roll-up Spring machine servomotor flexible connection structure

Technical field

The utility model relates to Digital Control Plane Roll-up Spring machine technology field, and is special relevant with a kind of Digital Control Plane Roll-up Spring machine servomotor flexible connection structure.

Background technology

Spring coiling machine is the plant equipment of producing spring, and alignment is at first passed through in steel wire line sending from the coil holder, and steel wire carries out the wind spring reducing then, cuts off the making of accomplishing a spring by cutting knife at last.

The kind of spring has been not limited to original single helical structure at present; Various shapes have appearred; Such as pagoda shape, cydariform, middle concave, camber extension spring, torsion spring, abnormity or the like, the raising of the rich and precision of spring kind has proposed more requirements to spring coiling machine, and key just is on the frock technology of volume footpath; The difference of import equipment and domestic equipment; Be the factor of technological design, raw material heat treatment process and installation accuracy, peopleware and details aspect,, obtain the importance that domestic equipment substitutes import equipment so the utility model people has great breakthrough to design of numerical control spring coiling machine multiaxis builder and utility model.

Spring volume footpath is the work realization through diameter changing mechanism; Steel wire is delivered to the volume path position, withstands guiding by the top spring pin of diameter changing mechanism, makes steel wire crooked; Crooked shape depends on the running orbit of diameter changing mechanism, so being modified into for key technical problem in the spring coiling machine of diameter changing mechanism at present.

In the process of whole volume footpath, motor-driven is a requisite link.Propose a kind of diameter changing mechanism of numerical control pressure spring machine that is used among the Chinese patent ZL200910101167.6, comprise servomotor, ball-screw, reducing base, screw slide block, hold-down support, reducing base, reducing base pressing plate, knife rest, top spring key seat, top spring pin, front wallboard, front wallboard deep-slotted chip breaker.Servomotor is fixedly mounted on the hold-down support, the affixed rotating shaft with servomotor of ball-screw, and ball-screw cooperates with the screw space of slider, the rectilinear motion of realization screw slide block.This type of drive is simple in structure, but assembly precision requires height between ball-screw and the servomotor, has carelessness will cause Concentricity tolerance between ball-screw and the servomotor rotating shaft slightly, while spare and accessory parts serious wear, and service life is short.So the utility model people designs a kind of Digital Control Plane Roll-up Spring machine servomotor flexible connection structure to above-mentioned problem, this case produces thus.

The utility model content

The purpose of the utility model provides a kind of Digital Control Plane Roll-up Spring machine servomotor flexible connection structure, and the concentric deviation that produces when eliminating assembling between servomotor and the ball-screw realize that both precisely connect, and assembling is simple, long service life.

In order to achieve the above object, the utility model is realized through following technical scheme:

A kind of Digital Control Plane Roll-up Spring machine servomotor flexible connection structure comprises shaft coupling head, joint, and the shaft coupling head is the different connection body in aperture, two, one of which end socket servomotor output shaft, other end telescopic lap splice; Joint outer end socket ball screw, inner through first pin and shaft coupling head pin joint.

Described joint and ball screw are through the second pin pin joint, and first pin is vertical with second pin.

Described shaft coupling head is bearing in motor fixing seat through bearing.

Described bearing outer ring is lined with and cap, when the movable feed screw nut's seat that is installed in ball screw slides to the ball screw bottom, support bump in and cap.

After adopting such scheme, the utlity model has many beneficial effects:

Servomotor adopts soft connecting mode in the utility model; Through the secondary socket of shaft coupling head and joint, improved the concentricity that servomotor connects with ball screw, avoid producing servomotor output shaft and ball screw nonparallelism; Make the ball screw running steady, smooth and easy; Reduce wear, reduce noise, improve the workpiece life-span.

Description of drawings

Fig. 1 is the utility model preferred embodiment section plan;

Fig. 2 uses the mounting structure sketch map for the utility model preferred embodiment.

The specific embodiment

In conjunction with accompanying drawing 1 ~ Fig. 2, preferred embodiment explains further details to the utility model.

A kind of Digital Control Plane Roll-up Spring machine of the utility model servomotor flexible connection structure mainly comprises shaft coupling head 1, joint 2.

Shaft coupling head 1 is the different connection body in aperture, a two, and an end directly is socketed in the output shaft of vertical servomotor 3, and other end telescopic lap splice 2 is contained in the shaft coupling head 1 in the whole joint 2.

Joint 2 is the pipe fitting of an end perforate, the outer end socket ball screw 4 of its perforate, be contained in the syncranium 1 in the inner after, through first pin 5 and shaft coupling head 1 pin joint location.The outer end of joint 2 and ball screw 4 pass through second pin, 6 pin joints simultaneously, and first pin 5 is vertical with 6 one-tenth 90 ° of second pins.

Shaft coupling head 1 periphery is bearing in motor fixing seat 8 through bearing 7; With regard to socket feed screw nut's seat 9 is installed on the ball screw 4, at the outer ring of bearing 7 sleeve gasket and cap 10, when feed screw nut's seat 9 slides onto ball screw 4 bottoms; Just be resisted against and cap 10 on, it is impaired to eliminate friction.

When the utility model was installed and used, as shown in Figure 2, motor fixing seat 8 was fixed on the slide mechanism; Ball screw 4 exposes the outside of motor fixing seat 8; When servomotor 3 starts, drive ball screw 4 and rotate, thereby realize and affixed feed screw nut's seat 9 rectilinear motions of slide block.The secondary of shaft coupling head 1, joint 2 connects in the utility model; Realize that servomotor 3 is connected with the soft of ball screw 4, improve both concentricitys, avoid producing servomotor output shaft and ball screw nonparallelism; Make the ball screw running steady, smooth and easy; Reduce wear, reduce noise, improve the workpiece life-span.

The foregoing description only be used to explain inventive concept of the utility model, but not to the qualification of the utility model rights protection allly utilizes this design that the utility model is carried out the change of unsubstantiality, all should fall into the protection domain of the utility model.

Claims

1. Digital Control Plane Roll-up Spring machine servomotor flexible connection structure, it is characterized in that: comprise shaft coupling head, joint, the shaft coupling head is the different connection body in aperture, two, one of which end socket servomotor output shaft, other end telescopic lap splice; Joint outer end socket ball screw, inner through first pin and shaft coupling head pin joint.

2. a kind of Digital Control Plane Roll-up Spring machine servomotor flexible connection structure as claimed in claim 1 is characterized in that: described joint and ball screw are through the second pin pin joint, and first pin is vertical with second pin.

3. a kind of Digital Control Plane Roll-up Spring machine servomotor flexible connection structure as claimed in claim 1, it is characterized in that: described shaft coupling head is bearing in motor fixing seat through bearing.

4. a kind of Digital Control Plane Roll-up Spring machine servomotor flexible connection structure as claimed in claim 3 is characterized in that: described bearing outer ring is lined with and cap, when the movable feed screw nut's seat that is installed in ball screw slides to the ball screw bottom, support bump in and cap.