CN2787378Y

CN2787378Y - Grinding wheel dresser

Info

Publication number: CN2787378Y
Application number: CN 200520034072
Authority: CN
Inventors: 杨晓波; 蔡燕英
Original assignee: CHINA SECOND HEAVY MACHINERY GROUP CO
Current assignee: China Second Heavy Machinery Group Co
Priority date: 2005-04-29
Filing date: 2005-04-29
Publication date: 2006-06-14
Anticipated expiration: 2015-04-29

Abstract

The utility model discloses a grinding wheel dresser for dressing a grinding wheel used for processing a worm rod, which can repair out cross-sectional shape of the grinding wheel for making a large module worm rod. The grinding wheel dresser comprises a holding handle, a sliding board, a sliding shaft and an adamantine pen, wherein the sliding board is connected with the holding handle, and the shaft lines of the sliding board and the holding handle form an included angle of 70 DEG; a sliding chute is arranged on the sliding board along a shaft-line direction, the sliding shaft is arranged in the sliding chute and is glidingly matched with the sliding chute, and one end of the sliding shaft, which extends out of the sliding board, is provided with the adamantine pen vertical to the shaft line of the sliding shaft. The grinding wheel dresser with the structure breaks through the limitation that the worm rod can only be processed on a grinding lathe of the worm rod, improves the use range and the function of a lathe, and causes the worm rod of a large module involute profile, which exceeds the process capacity of a special lathe to be processed on the lathe. Meanwhile, the utility model also has the characteristics of simple and compact structure, and convenient adjustment and use, can also be suitable for processing an extending involute worm rod, etc., and is also suitable for repairing the general grinding wheel.

Description

Dresser

Technical field

The utility model relates to a kind of frock that is used for trimming wheel, especially a kind of dresser that the emery wheel that is used for machining worm is repaired.

Background technology

At present, the use of factory's medium plain emery wheel is quite general, emery wheel is behind the workpiece of having processed some, because emery wheel can produce wearing and tearing, emery wheel after the wearing and tearing uses as continuing, to cause that vibration, noise, machined surface roughness descend, crack, burn and residual tension etc., can't guarantee the geometric accuracy of workpiece simultaneously.Emery wheel itself has certain whetstone certainly-be autogenous grinding finishing, but can not be fully from sharpening, and therefore the emery wheel after the wearing and tearing must in time be repaired.The finishing of emery wheel mainly plays two effects, and the one, remove the abrasive particle of outer passivation or remove one deck abrasive particle that has been stopped up by abrasive dust, new abrasive particle is revealed; The 2nd, make the effective cutting edge that has sufficient amount after the crushing, thereby improve the roughness and the durability of finished surface.And for plunge grinding, for example be used to process the emery wheel of involute helicoid worm, straight-sided normal worm, except the reasons such as wearing and tearing of above-mentioned emery wheel need in time be repaired, it also is crucial in time repairing when contour distortion appears in emery wheel, the contour distortion of emery wheel can have influence on the machining accuracy of workpiece, thereby influences crudy.For involute helicoid worm, with worm screw generating circle post tangent section in, flank profil is only straight line, when this tooth bar carries out grinding with emery wheel, needs special purpose machine tool, as utilizes worm grinder to process.But when single-piece, small lot machining large-modulus worm screw, because it is less that the worm screw of big modulus is used, if buy the worm grinder of big modulus, certainly will spend a large amount of equipment purchasing expenses, behind the worm screw of amount of processing seldom or even single-piece, equipment is just lain idle, and causes the waste of the idle and fund of equipment.But, so just can utilize general lathe to carry out big modulus worm processing so long as can repair out the emery wheel cross sectional shape of grinding worm easily.

The utility model content

In order to overcome the deficiency that the equipment that has now in the factory can't process big modulus worm, technical problem to be solved in the utility model provides a kind of dresser of repairing out the emery wheel cross sectional shape of machining large-modulus worm screw.

The technical scheme that its technical problem that solves the utility model adopts is: this dresser comprises grip shank, sliding panel, slide-bar and diamond pen, sliding panel is connected with grip shank and its axis is 70 ° of angles, axis direction is provided with chute in the sliding panel upper edge, slide-bar is installed in the chute and is slidingly matched with chute, and the end that slide-bar stretches out sliding panel is equipped with the diamond pen with the slide-bar axis normal.

The beneficial effects of the utility model are: owing to adopted said structure, according to the equation of the character of involute and involute as can be known, generating circle is healed big involute more smoothly, therefore, processing for big modulus worm, its adamantine finishing track can be the finishing of the straight line after the lead angle that tilts, thereby makes the normal tooth profile of worm screw reach approximate involute after making its final emery wheel to the worm screw grinding.The dresser of said structure broken through can only be on worm grinder the restriction of machining worm, enlarged the scope of application and the function of lathe, the worm screw of the big modulus involute profile that exceeds the special purpose machine tool working ability can be processed on lathe.Simultaneously, that this device also has is simple and compact for structure, adjustment and characteristics easy to use, also applicable to using in other processing as straight-sided normal worm, also is applicable to the emery wheel that finishing is general.

Description of drawings

Fig. 1 is a front view of the present utility model.

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

Be labeled as grip shank 1, sliding panel 2, slide-bar 3, chute 4, diamond pen 5, housing screw 6, groove 7, sliding pin 8 among the figure.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

As Fig. 1, Fig. 2, dresser of the present utility model comprises grip shank 1, sliding panel 2, slide-bar 3 and diamond pen 5, and grip shank 1 is provided with installing hole, is used for itself and lathe are connected and fixed, and can certainly adopt other connected mode.Sliding panel 2 is connected with grip shank 1 and its axis is 70 ° of angles, be provided with chute 4 at sliding panel 2 upper edge axis directions, slide-bar 3 is installed in the chute 4 and with chute 4 and is slidingly matched, and the end that slide-bar 3 stretches out sliding panel 2 is equipped with the diamond pen 5 with slide-bar 3 axis normal.Promote slide-bar 3 moving linearlies in use, the track of diamond pen 5 is the rectilinear motion that is 70 ° angle with the emery wheel axis of rotation, is 20 ° thereby make the emery wheel of repairing out, satisfies the needs of crushing.

Involute gear should be the less helical gear of the number of teeth in theory, its contrate tooth profile is exactly an involute, because its normal tooth profile is different with contrate tooth profile, and emery wheel is when roll flute, be along the direction feed between helical tooth, therefore, the cross sectional shape that emery wheel is accomplished should be identical with the normal tooth profile of processed worm screw or close, like this, the adamantine movement locus of trimming wheel just should be an involute path.According to the equation of the character of involute and involute as can be known, the generating circle big involute of healing is more level and smooth.Modulus and pressure angle that worm-drive is defined on the interior worm screw axial plane of principal plane are standard value, axial plane pressure angle α=20 °, therefore, processing for big modulus worm, its adamantine finishing track can be for carrying out the straight line finishing of α=20 ° after the lead angle that tilts, make the normal tooth profile of worm screw reach approximate involute after making its final emery wheel to the worm screw grinding.Utilize the feeding of lathe cross slide to adjust reconditioning quality during operation, vertical planker is adjusted radially reconditioning scope, thereby utilizes this dresser promptly can process involute gear on engine lathe.

For easy to use, described sliding panel 2 preferably is connected the end of grip shank 1, can interfere between grip shank 1 and the sliding panel 2 like this, and clamping is also very convenient.

Described sliding panel 2 can be made into integrative-structure with grip shank 1, can guarantee that like this its mutual alignment relation is not easy because of the former of external force thereby change, can certainly be made into the dismountable structure that connects by connector, need only the position that guarantees after its assembling and concern correct, firm.

Can adopt the fixed installation mode between described diamond pen 5 and the slide-bar 3, it is promptly not removable with respect to slide-bar 3 that back diamond pen 5 is installed; But, can adopt conventional be slidingly matched and between diamond pen 5 and the slide-bar 3 by the fixing mode of housing screw 6 in order to use with easy to adjust.

For the ease of operation, described sliding panel 2 is provided with the axial pass trough 7 that is communicated with chute 4, and sliding pin 8 is installed on the slide-bar 3, and sliding pin 8 stretches out from groove 7, and the stroke of the length of groove 7 and sliding pin 8 is suitable, thereby guarantees that it carries out the straight line finishing to emery wheel.

Embodiment: as Fig. 1, Fig. 2, dresser of the present utility model, comprise grip shank 1, sliding panel 2, slide-bar 3 and diamond pen 5, grip shank 1 is provided with installing hole, sliding panel 2 is structure as a whole with grip shank 1, and end and its axis that sliding panel 2 is arranged on grip shank 1 are 70 ° of angles, are provided with chute 4 at sliding panel 2 upper edge axis directions, slide-bar 3 is installed in the chute 4 and with chute 4 and is slidingly matched, and the end that slide-bar 3 stretches out sliding panel 2 is equipped with the diamond pen 5 with slide-bar 3 axis normal.Adopt the conventional mode that is slidingly matched and is fixed by housing screw 6 between diamond pen 5 and the slide-bar 3, sliding panel 2 is provided with the axial pass trough 7 that is communicated with chute 4, sliding pin 8 is installed on the slide-bar 3, sliding pin 8 stretches out from groove 7, the stroke of the length of groove 7 and sliding pin 8 is suitable, thereby guarantees that it carries out the straight line finishing to emery wheel.

Utilize this dresser, on the CW6180 lathe of the present transformation, use, can process pitch 240mm, the involute helicoid worm of diameter 480mm, same, can also process straight-sided normal worm, also can repair common emery wheel.

Claims

1, dresser, it is characterized in that: comprise grip shank (1), sliding panel (2), slide-bar (3) and diamond pen (5), sliding panel (2) is connected with grip shank (1) and its axis is 70 ° of angles, axis direction is provided with chute (4) in sliding panel (2) upper edge, slide-bar (3) is installed in the chute (4) and is slidingly matched with chute (4), and the end that slide-bar (3) stretches out sliding panel (2) is equipped with the diamond pen (5) with slide-bar (3) axis normal.

2, dresser as claimed in claim 1 is characterized in that: described sliding panel (2) is connected the end of grip shank (1).

3, dresser as claimed in claim 1 is characterized in that: described sliding panel (2) and grip shank (1) structure that is connected to one.

4, dresser as claimed in claim 1 is characterized in that: described diamond pen (5) is slidingly matched with slide-bar (3) and is fixing by housing screw (6).

5, dresser as claimed in claim 1, it is characterized in that: described sliding panel (2) is provided with the axial pass trough (7) that is communicated with chute (4), sliding pin (8) is installed on the slide-bar (3), sliding pin (8) stretches out from groove (7), and the stroke of the length of groove (7) and sliding pin (8) is suitable.