CN2100961U

CN2100961U - Clamp of grinding screw plate

Info

Publication number: CN2100961U
Application number: CN 91224784
Authority: CN
Inventors: 朱炎文; 王冬梅
Original assignee: TIANJIN GRINDER FACTORY
Current assignee: TIANJIN GRINDER FACTORY
Priority date: 1991-09-13
Filing date: 1991-09-13
Publication date: 1992-04-08

Abstract

The utility model relates to a clamping device for grinding a screw plate, which is composed of a fixed bottom plate and a movable frame, wherein, a workpiece positioning clamping device and a cam device which can swing around a horizontal shaft are arranged on the movable frame; the screw plate is clamped by the workpiece positioning clamping device through regulating a shim plate and an angle sloping block; the screw plate which is ground can meet international requirements by only one swinging motion of the movable frame. The utility model has the advantages of simple device, convenient operation.

Description

Clamp of grinding screw plate

The utility model relates to a kind of special mould clamp device that grinds the surface grinding machine that screw plate uses.

The jig device that grinds screw plate in the known technology is to make the hand of spiral of screw plate consistent with the direction of motion of Grinder bench; In the secondary screw plate that grinds with this kind method, its fixedly screw plate moulding screw thread end face respectively be pressed into the device surface that the formed intersection of face and exit surface is not orthogonal to screw plate, the requirement that can not be up to state standards just (GB972-83).In addition, American technology is to reach by the jig that adopts the two-way interactive swing to make the purpose of intersection perpendicular to the screw plate device surface, and structure is complicated.

The purpose of this utility model is to overcome the deficiency of known technology and adopt a kind of jig device of unidirectional swing to realize the requirement of intersection perpendicular to device surface.

The purpose of this utility model realizes by following technical proposals.

On fixed base plate of the present utility model, be equipped with the adjustable shelf that can wind perpendicular to the axis rotation of this base plate; Be equipped with on adjustable shelf and can tightly install and cam gear around the work piece positioning with the rectangular trunnion axis swing of screw plate device surface, this trunnion axis becomes 90 ° ± ψ angle with lathe lengthwise movement direction; The swing of the tight device of work piece positioning relies on cam gear to control.

The tight device of work piece positioning described in the utility model is by binding clasp, adjusts backing plate and angle skewback and forms; Adjusting backing plate changes with grinding the different of object with the angle skewback.When adjusting moulding screw thread end face that backing plate should guarantee the screw plate that ground and being horizontal at short transverse and axis of oscillation in same plane; The lead angle ψ of the angle of angle skewback and screw plate equates.

Advantage of the present utility model is: simple in structure; Easy to operate; Easy to implement and guarantee to have reached request of national standard.

Description of drawings:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the A-A cutaway view of Fig. 2.

In conjunction with the accompanying drawings embodiment of the present utility model is specified in down:

The structure of embodiment of the present utility model is that the adjustable shelf 3 that can rotate around bearing pin 2 is installed on the jig fixed base plate 1, fastened bolt 4 lockings of ψ (this ψ angle promptly equals the lead angle of the screw plate that ground) that have angle of adjustable shelf and fixed base plate; Being equipped with on the adjustable shelf to unroll is installed on positioning clamping device 6 and the cam gears 7 that two of this adjustable shelf pacify pin 5 swings of B-B axis in line in pairs, and the swing of positioning clamping device is controlled by cam gear; Screw thread end face and B-B axis that screw plate 8 places binding clasp 9 to adjust to screw plate by adjustment backing plate 10 are in the same plane, because the B-B axis was parallel with the platen face when anchor clamps were installed, the screw plate device surface is close to the E face of angle skewback 11, E face and B-B axis normal, because the angle of angle skewback equals the lead angle of screw plate, the E face becomes 90 ° ± ψ angle again with the working table movement direction, so the device surface of screw plate is inevitable perpendicular to screw thread end face and the intersection that is pressed into edged surface.

Claims

1, a kind of jig device that grinds screw plate is characterized in that being equipped with the adjustable shelf that can wind perpendicular to the axis rotation of this base plate on fixed base plate; Be equipped with on adjustable shelf and can tightly install and cam gear around the work piece positioning with the rectangular trunnion axis swing of screw plate device surface, this trunnion axis becomes 90 ° ± ψ angle with lathe lengthwise movement direction; The swing of the tight device of work piece positioning relies on cam gear to control.

2, jig device according to claim 1 is characterized in that the tight device of work piece positioning is made up of binding clasp, adjustment backing plate and angle skewback; Adjusting backing plate changes with grinding the different of object with the angle skewback.When adjusting backing plate and should guarantee that the screw plate moulding screw thread end face that grinds is horizontal at short transverse and axis of oscillation in same plane, the angle of angle skewback and the lead angle of screw plate

Equate.