CN202291525U

CN202291525U - Rotary positioning drilling jig clamp

Info

Publication number: CN202291525U
Application number: CN2011203732200U
Authority: CN
Inventors: 王家星; 郭艳荷
Original assignee: Tianjin Railway Signal Co Ltd
Current assignee: Tianjin Railway Signal Co Ltd
Priority date: 2011-09-30
Filing date: 2011-09-30
Publication date: 2012-07-04
Anticipated expiration: 2021-09-30

Abstract

The utility model provides a rotary positioning drilling jig clamp comprising a disc-shaped drill template which is rotationally and fixedly arranged on a support; a section of circular arc-shaped bulge is arranged on a disc surface on one side of the drill template which is close to the edge of the circumference; four equal radial drill bush holes are arranged in the bulge; four equal axial positioning pin holes are arranged in the disc surface; a connecting line between the center of the positioning pin hole and the center of a corresponding drill bush hole passes through the axis of a rotary shaft; a fixing and locking device for closely fitting and fixing a work piece to be processed and the outer arc-shaped surface of the bulge is arranged on the drill template; a positioning hole which corresponds to one positioning pin hole of the drill template is arranged on the support; and a set of elastic pluggable positioning pin mechanism is arranged in the hole. The rotary positioning drilling jig clamp has the beneficial effects that: the size precision of all the holes of the work piece is ensured, the installation interchangeability of all the holes of the work piece is realized, the structure is simple, the operation is convenient, the positioning is accurate, the production efficiency is high and the like.

Description

Rotary spitting drill die clamper

Technical field

The utility model belongs to the machining equipment technical field, especially relates to the anchor clamps that a kind of arc-shaped workpiece is carried out the processing of five equilibrium radial bore.

Background technology

In the decelerator of goat, the particular component that a kind of arc is arranged is left and right clamping plate, and is as shown in Figure 1; Need be processed with four five equilibrium radial holes on these parts, existing clamp fixture is to hole to the working face inner arc surface from the black skin external arc of workpiece to be processed, and black skin has sand holes when having boring; Be prone to make the drill bit sideslip drill bit that fractures, locate unreasonablely, project organization is unreasonable; Drill bushing separates with locating template; Cause intrados nose end deviation position 2-3mm, the processed workpiece hole dimension is overproof, and each workpiece hole does not have the problem of interchangeability.

Summary of the invention

The technical problem that the utility model will solve provides a kind of change positioning reference, inner arc machined surface location outwards holing from intrados, and accurate positioning, drill bit can sideslip during boring, the rotary spitting drill die clamper that each workpiece hole interchangeability is high.

For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of rotary spitting drill die clamper comprises base, is fixed on support on the base, through the bushing plate of rotating shaft rotational fixation on support; Said bushing plate integral body roughly is disc, is provided with one section circular-arc convexity in its card one side near the circumferential edges place, has 4 five equilibriums drill bushing hole radially on the convexity, is with drill bushing in the hole; Also have 4 five equilibrium axial location pin-and-holes on the bushing plate, the line between the center in the center of a dowel hole and a corresponding drill bushing hole passes the axial line of rotating shaft; Also being provided with the extrados that is used for workpiece to be processed and said convexity on the bushing plate fits tightly and fixing fixing and locking device; Also be provided with on the said support one with pin-and-hole position, the location corresponding positioning hole of bushing plate, a cover elasticity plug dowel mechanism is housed in the hole.

Further, said fixing and locking device comprises, a pin installing hole is positioned near the bushing plate in the outside, a said protruding end; One cam installing hole is located near the bushing plate the outside, said protruding the other end, a cam, the wheel hole of said cam and with the cam installing hole in be installed with a bearing pin and a soket head cap screw that is threaded together.

Advantage and the good effect that the utlity model has are: this brill timber grab is simple in structure, accurate positioning, and drill bit can sideslip during boring, has guaranteed the dimensional accuracy in each hole of workpiece, and each workpiece hole interchangeability is high.

Description of drawings

Fig. 1 is the structural representation of workpiece to be processed

Fig. 2 is that workpiece to be processed has been installed in the front view on the drilling jig gripper

Fig. 3 is the AA cutaway view of Fig. 2

Fig. 4 is the structural representation of bushing plate

Fig. 5 is the AA cutaway view of Fig. 4

Among the figure:

1, base; 2, support; 3, pin; 4, bushing plate; 5, rotating shaft; 6, cam; 7, drill bushing; 8, tack handle; 9, alignment pin; 10, guide pin bushing; 11, spring; 12, cover; 13, steel bushing; 14, bearing pin; 15, screw; 16, round nut; 17, pad; 18, soket head cap screw; 19, pin; 20, soket head cap screw; 21, workpiece; 22, dowel hole; 23, convexity; 24, pin installing hole; 25, cam installing hole; 26, drill bushing hole

The specific embodiment

Like Fig. 2, shown in Figure 3; The rotary spitting drill die clamper of the utility model comprises base 1, stands on support 2 on the base 1, through the bushing plate 4 of rotating shaft 5 rotational fixation on support 2, like Fig. 4 and shown in Figure 5; Bushing plate 4 integral body roughly are disc; Its card one side near the circumferential edges place be provided with one section circular-arc protruding 23, have 4 five equilibriums drill bushing hole 26 radially on protruding 23, be with drill bushing 7 in the hole; Also have line between the center in center and a corresponding drill bushing hole of 22, one dowel holes 22 of 4 five equilibrium axial location pin-and-holes to pass the axial line of rotating shaft 5 on the bushing plate;

Also be provided with on the support 2 one with the dowel hole position corresponding positioning hole of bushing plate 4, a cover elasticity plug dowel mechanism is housed in the hole, as shown in Figure 3; This elasticity plug dowel mechanism has comprised the guide pin bushing that stretches into dowel hole, is installed with alignment pin in the guide pin bushing, and alignment pin is divided into thin neck section and wide section two parts; Be with spring on the thin neck section, Spring Card is between wide section and guide pin bushing, and some stretches out guide pin bushing thin neck section; And be connected with flush handle 8, also be provided with spring between alignment pin and the guide pin bushing, when need rotary drilling template; Outwards spur flush handle, the wide section that drives alignment pin partly breaks away from the dowel hole 22 of bushing plate, stirs the bushing plate rotation; When the locating hole hole heart that rotates to another dowel hole and support over against the position time, unclamp flush handle, alignment pin is under the elastic reaction of spring; Wide section heads in the dowel hole, with the bushing plate latched position.

Also be provided with on the bushing plate and be used for workpiece to be processed 21 and said protruding 23 extrados are fitted tightly and fixing fixing and locking device, said fixing and locking device comprises, a pin installing hole is positioned near the bushing plate the outside, a said protruding end; One cam installing hole 25 is located near the bushing plate the outside, said protruding the other end, a cam, the wheel hole of said cam and with the cam installing hole in be installed with a bearing pin and a soket head cap screw that is threaded together.

The course of work of this instance: whole drilling jig gripper is fixed on the bench drill, the workpiece hole of workpiece is aimed at the pin installing hole 24 of bushing plate, in 3 insertions, two holes of will pin; This section of workpiece is fixing; The intrados of workpiece is close to the exterior arc surface of the convexity 23 of bushing plate, and cam 6 clamping work pieces of screwing are tightened soket head cap screw again; Cam is fixed on this position, and whole work-piece just has been fixed on the bushing plate.

The drill bit of bench drill faces the hole heart of drill bushing downwards, outwards spurs flush handle behind hole of every processing, drives and pulls up alignment pin 8; The rotary drilling template is rotated together with workpiece, waits to go to next hole, unclamps flush handle; Spring promotes alignment pin and inserts dowel hole automatically; At this moment, drill bit is still the hole heart that faces the drill bushing that moves to its below, all the other 3 holes of processing work successively downwards.Guarantee the dimensional accuracy in each hole of workpiece, realized the interchangeability that install in each hole of workpiece.

More than the embodiment of the utility model is specified, but said content is merely the preferred embodiment of the utility model, can not be considered to be used to limit the practical range of the utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the utility model.

Claims

1. rotary spitting drill die clamper is characterized in that: comprise base, be fixed on support on the base, through the bushing plate of rotating shaft rotational fixation on support;

Said bushing plate integral body roughly is disc, is provided with one section circular-arc convexity in its card one side near the circumferential edges place, has 4 five equilibriums drill bushing hole radially on the convexity, is with drill bushing in the hole;

Also have 4 five equilibrium axial location pin-and-holes on the bushing plate, the line between the center in the center of a dowel hole and a corresponding drill bushing hole passes the axial line of rotating shaft;

Also being provided with the extrados that is used for workpiece to be processed and said convexity on the bushing plate fits tightly and fixing fixing and locking device;

Also be provided with on the said support one with pin-and-hole position, the location corresponding positioning hole of bushing plate, a cover elasticity plug dowel mechanism is housed in the hole.

2. rotary spitting drill die clamper according to claim 1 is characterized in that: said fixing and locking device comprises, a pin installing hole is positioned near the bushing plate in the outside, a said protruding end; One cam installing hole is located near the bushing plate the outside, said protruding the other end, a cam, the wheel hole of said cam and with the cam installing hole in be installed with a bearing pin and a soket head cap screw that is threaded together.