CN2387503Y

CN2387503Y - Device for measuring and repairing taper thread hole of graphite electrode

Info

Publication number: CN2387503Y
Application number: CN 99244867
Authority: CN
Inventors: 徐敬千
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-09-24
Filing date: 1999-09-24
Publication date: 2000-07-12
Anticipated expiration: 2009-09-24

Abstract

The utility model relates to a device for measuring and manually repairing a taper thread hole and an end surface of a graphite electrode. The utility model uses a taper thread plug as a body, and uses a leveling rule and a rotating arm to be matched with a dial indicator to measure at the electrode end surface, and also uses a scraper on the rotating arm to manually repair the electrode end surface. The utility model not only can measure maximal inner diameter of an electrode hole after taper thread machining, and the accuracy errors of the central verticality of the end surface of the taper thread, but also can manually repair part defects existing in the taper thread and the end surface of the electrode in time. Thus, the machining accuracy of the electrode taper thread and the rate of finished products can be raised. The utility model has the advantages of simple structure, accurate measurement, and convenient use.

Description

The device of graphite electrode taper thread hole measurement and finishing

The utility model relates to a kind ofly can measure device with hand finish to graphite electrode taper thread hole and end face.

Because electric smelting continuous advancement in technology, processing precise degree to graphite electrode taper thread and end face requires more and more higher, and because the present some shortcomings of electrode processing technology equipment, many factories are constantly excessive, the taper thread center of generating electrodes taper thread hole mismachining tolerance and end face out of plumb and the unequal problem of end face still.Intensity and electric conductivity after these problems not only influence graphite electrode and connect, and often make electrode in smelting furnace, produce joint to heat up unevenly, produce the thermal stress inequality and fracture.

The purpose of this utility model provides a kind ofly can measure device with hand finish to graphite electrode taper thread hole and end face, it can not only measure the Accuracy Error value of the verticality at maximum inner diameter, end face and taper thread center after the processing of electrode hole taper thread, and can also in time carry out hand finish to the part defective of electrode hole taper thread and end face existence, the machining precision of graphite electrode taper thread and yield rate are improved.

The purpose of this utility model is achieved in that the tapered plug based on special construction, be screwed in the electrode hole with certain moment, with the tapered plug end face is benchmark, on the electrode hole end face, measure the maximum inner diameter of electrode hole taper thread and the Accuracy Error value of end face unflatness with dial gauge, rotation by dial gauge on the pivoted arm again, on electrode hole end face difference, measure the Accuracy Error value of electrode hole taper thread center and end face squareness.Move down the knife rest on the pivoted arm is parallel then, scraper on the knife rest is close on electrode end surface, use the hand propelled pivoted arm, graphite matrix with scraper scraping electrode end surface, require contrast according to actual error that measures and product technology, end face is taken multiple measurements and scraping, make electrode taper thread Kongzui large diameter obtain adjusting, the non-perpendicularity of center, taper thread hole and end face is corrected, and the end face unevenness improves.

Owing to adopt such scheme, can make graphite electrode taper thread hole after processing, be measured accurately and repair, not only can make the electrode taper thread hole that does not reach technical requirement, need not go up lathe again and just can in time repair, but also qualified finished electrode machining precision is further enhanced.The utlity model has simple in structure, measure accurately, without power supply, portably use advantages such as convenient.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the utility model general illustration.

Fig. 2 is the section of structure of cone thread plug and each one of pivoted arm.

Fig. 3 is the structure and the sectional view of knife rest.

1. torsion handles, 2. dial gauges, 3. leveling rulers, 4. taper screw thread plugs, 5. pivoted arms, 6. latches, 7. scrapers, 8. special bolt 9. toolsetting bolts 10. handgrips 11. hold-down screws 12. axles 13. garden taper roller bearings 14. axle glands 15. bearing flanges 16. stage clips 17. bearing pins 18. locking caps 19. extension springs 20. movable bearing supports 21. rocking knife carriers 22. pins 23. special nut 24. extension bars 25. plane gauge heads 26. fastening nuts 27. positioning nuts among the figure.

In Fig. 1, torsion handle (1) can insert in pivoted arm (5) axle, make tapered plug (4) in the electrode thread hole, tighten and unclamp, survey instrument is at leveling ruler (3) one ends a dial gauge (2) to be installed, and mix the plane gauge head, leveling ruler can move freely on the end face of tapered plug (4), carries out the measurement to the electrode end surface each point.

In Fig. 2, tapered plug (4) Lower Half is an outer cone thread, the first half is an Outer Taper, the cone center is provided with double garden taper roller bearing (13), bearing inner sleeve axial compression lid (14) diligently is fixed on the axle bottom, bearing outside is fixed in the hole of tapered plug (4) with two bearing flanges (15), axle top is provided with pivoted arm, fastening with gib screw (11) axle and pivoted arm, the pivoted arm middle part is provided with latch (6), and when the torsion handle inserted the square hole rotation pivoted arm on axle top, pivoted arm drove tapered plug by the bearing pin (17) on the latch (6) and rotates together, after pulling up latch (6), tapered plug then maintained static when pivoted arm rotated.

In Fig. 3, the other end at pivoted arm (5) is provided with gauge stand and knife rest, two interior hexagonal toolsetting bolts (9) are screwed on the pivoted arm (5), locate with locking cap (18), knife rest is made up of movable bearing support (20) and swing tool rest (21), with positioning screw (27) two movable bearing supports (20) are done to adjust up and down the location, back on pivoted arm, swing tool rest (21) is installed on the movable bearing support (20) and can swings up and down with pin (27), with two extension springs (19) swing tool rest and pivoted arm are strained, make the swing tool rest abut against the knob of toolsetting bolt (9) top on, when the toolsetting bolt rotates, the swing tool rest also will swing up and down thereupon, and scraper (7) is installed on the swing tool rest with trip bolt (26).Dial framework on the pivoted arm is a special bolt (8), and on pivoted arm, extension bar (24) and plane gauge head (25) are installed in dial gauge measuring staff bottom, and electrode end surface is rotated measurement with the fastening dial gauge of special nut (23) (2).

The utility model can be used for measurement and the finishing to taper thread of the measurement of graphite electrode nipple and other industries.

Claims

A kind ofly can measure device with hand finish to graphite electrode taper thread hole and end face, it is made up of tapered plug, pivoted arm, knife rest and survey instrument, it is characterized in that: the tapered plug Lower Half is an outer cone thread, the first half is an Outer Taper, the cone center is provided with double garden taper roller bearing, and the axle top of bearing is provided with pivoted arm and is furnished with the moment handle, and there is latch at the pivoted arm middle part, the pivoted arm other end is provided with gauge stand and knife rest, and knife rest is made up of movable bearing support and swing tool rest; Survey instrument is at leveling ruler one end a dial gauge to be installed, and mixes the plane gauge head.