CN2280586Y - Mould engraving machine - Google Patents

Abstract

The utility model relates to a mould engraving machine, comprising a main body and a fixing device fixed on the rotating shaft of a compressed air motor. A driving part and a positioning part are arranged on the fixing device, the cross-section of the driving part is in a non-circle shape, the cross-section of the positioning part is in a circle shape, the fixing device uses a steel ball to extend at the inner wall of a jacket tube and is squeezed by an outer tube sheathed outside the jacket tube to keep the status of the steel ball squeezing the handle of a grinding wheel, the grinding wheel with a handle does not need to use a tool to be rapidly and simply fixed on the engraving machine.

Description

Diesinker

The utility model relates to a kind of burnishing device, refers to a kind of diesinker that can assemble or dismantle band handle emery wheel simple and easy, fast especially.

Diesinker is a kind of Pneumatic hand tools that is used for mold polish, grinding; its structure as shown in Figure 1, 2; this die sinking tool is provided with the body 1 of a hollow tubular; body 1 rear end 11 is air intakes 12; 13 of front ends are axially installed an air motor 14; and by one group of end cap, 15 location, and the front end 13 of body 11 is axially stretched out in the rotating shaft 141 of this air motor 14.In rotating shaft 141, be installed with a hollow sleeve 16, these sleeve pipe 16 outer rims are provided with two relative planar portions 161, in sleeve pipe 16, insert a claw-like collet chuck 17, and revolve with an overcoat 18 and to lock on the sleeve pipe 16,, make its shank that can clamp an emery wheel 19 191 so as to packing collet chuck 17, certainly, the outer rim of overcoat 18 also is provided with two relative planar portions 181, can lock this overcoat 18 by instrument, to avoid emery wheel 19 shanks 191 axially to break away from or radially to rotate.

Why diesinker will adopt the structure of said fixing band handle emery wheel 18; be because the rotating speed of diesinker needs more than the 18000RPM at least; and under the situation of like this high speed rotating, require emery wheel 18 axis need with rotating shaft 141 axis at same straight line, even tolerance is arranged; its feasible value also only is 0.03; very small, otherwise, in rotating at a high speed; emery wheel will impact phenomenon because of eccentric the generation with its periphery 19 contact working substances, be very easy to cracked.

Though above-mentioned structure can be fixed in emery wheel on the rotational axis line accurately,, following shortcoming is but arranged:

1, because sleeve pipe 16 is to revolve to lock in the rotating shaft 141, and overcoat 18 also is a packing collet chuck 17 by rotation and gradually, during the operation of historical facts or anecdotes border, must use two wrench to clamp the planar portions 161,181 of sleeve pipe 16 and overcoat 18 respectively, and impose opposite power, could packing or unscrew collet chuck 17.Obviously, no matter dismounting or assembling, all very inconvenience.

2, owing to must use two wrench, when diesinker is sold on the historical facts or anecdotes border, all subsidiary two wrench, but if arbitrary wrench lose, then be difficult for again seeking at once the same size wrench, also can cause the inconvenience in the work.

3,, neglect and when not locking really, emery wheel will skid very easily at work even fly out so have slightly owing to must impose opposite power with two wrench and could rotate and clamp the emery wheel shank.

4, with regard to concentric machining accuracy, except that rotating shaft 141, be required that the part of processing also has: sleeve pipe 16 and rotating shaft 141 screw togather part, sleeve pipe 16 inner edges for collet chuck 17 fits part, collet chuck 17 outer rims and sleeve pipe 16 fits partly, collet chuck 17 inner edges are in order to the part that contacts emery wheel 19 shanks 191 and overcoat 18 part in order to packing collet chuck 17.Obviously, process comparatively difficultly, and cost is higher.

Certainly, on instruments such as Pneumatic screw driver or pneumatic wrench, a kind of joint that can connect fast, dismantle is arranged, can not need tool using just instrument and screwdriver head can be linked.But because these instrument rotating speeds are lower, the concentricity of screwdriver head and tool's power output revolving shaft extremely difficulty reaches high accuracy, therefore, this joint can't be diverted on the diesinker.

The artificial solution of this creation commonly used the problems referred to above that diesinker exists, and develops the utility model.Main purpose of the present utility model provides a kind of diesinker, this diesinker when assembling, dismounting band handle emery wheel, must tool using can be fast, finish easily, and assembling back band handle emery wheel can be positioned on the shaft axis accurately.

A time purpose of the present utility model provides a kind of diesinker, and it can be simple and easy, fast and can process the member of diesinker at lower cost.

For achieving the above object, the utility model is taked following technical scheme:

A kind of diesinker comprises: a body, generally be hollow tubular, and air intake is established in the rear end, and front end is then axially installed an air motor, and the body front end is axially stretched out in the rotating shaft of this motor; And a fixture that is fixed in the rotating shaft, axially insert wherein and be positioned for the shank of band handle emery wheel; Its improvements are: described fixture is to revolve with a hollow sleeve to lock in the rotating shaft, and after the two combination, form one and play axially extended drive portion with non-circular cross-section by the rotating shaft front end, an and location division with circular cross sections, this sleeve pipe is provided with the hole of bead that connects the location division tube wall, be provided with a steel ball in this hole of bead, and this steel ball can be sheathed on the outer outer tube of sleeve pipe by one crowded and protruded by inside pipe wall.

Above-mentioned purpose of the present utility model, also can further realize by following technical measures:

Drive portion on the described fixture is the groove that is extended to this rotating shaft rear by the rotating shaft front end, the location division then is the slotted eye that the internal surface of sleeve pipe by the rotating shaft front end forwards extends, and the location division drives minister, and drive portion on the fixture and location division are the same slotted eyes that is forwards extended by rotating shaft front end edge internal surface of sleeve pipe, and drive portion is to projecting inward by the location division inner edge surface; The front end of described sleeve pipe is provided with a flange, and establishes a baffle ring between the hole of bead and rear end, and described outer tube wall is provided with an annular groove that can supply steel ball to stretch into, and this outer tube is made a press section remain on the crowded state that pushes away steel ball by a spring shaft to pushing; And drive portion one has the axial notch in hexagon cross section, and this drive portion also can be protruded by the internal surface of sleeve pipe opposite side, and the semicircular in shape cross section; The employed emery wheel shank of described diesinker is provided with a drive portion, a location division and a stop part; this drive portion has non-circular cross section; and can with the drive portion complementation of diesinker; it is the body of rod with circular cross sections that the diesinker location division just can be inserted in described location division one; stop part then is the concave ring groove that can supply a steel ball to embed, and between location division and drive portion.

The utility model preferred embodiment conjunction with figs. is described in detail as follows:

Fig. 1 commonly uses diesinker decomposition texture schematic perspective view.

Fig. 2 commonly uses diesinker plane and phantom.

Fig. 3 is the utility model first embodiment decomposition texture schematic perspective view.

Fig. 4 is combined planar and a phantom embodiment illustrated in fig. 3.

Fig. 5 is the decomposition texture schematic perspective view of the utility model second embodiment.

Fig. 6 is a 6-6 line cutaway view shown in Figure 5.

See also Fig. 3,4, the utility model embodiment comprises a body 2 and a fixture 3.Wherein, this body 2 generally is hollow tubular, its rear end 21 is provided with an air intake 22, and 23 of its front ends are by axial installing one air motor 24 behind the forward direction, and by one group of protecgulum, 25 location, this motor 24 is rotated by a switch 26 controls, and body 2 front ends 23 are axially stretched out in the rotating shaft 27 of motor 24, at rotating shaft 27 outer surfaces, are provided with thread segment 271, its front end face is provided with axially extended backward drive portion 272, and this drive portion 272 is hexagon cross section grooves.

Except above-mentioned rotating shaft 27, said fixing device 3 also is provided with a hollow sleeve 31, this sleeve pipe 31 is to revolve on the spiral section 271 that locks in rotating shaft 27, at sleeve pipe 31 with after rotating shaft 27 combines, its hollow bulb forms a location division 311, and this location division 311 is stretched the slotted eye that forms by rotating shaft 27 front end edge sleeve pipes 31 inwalls to the forward position, and the transverse shape of location division 311 is circular, and location division 311 is long than drive portion 272, and its diameter is then greater than the distance between drive portion 272 2 diagonal.

On the location division 311 of sleeve pipe 31, be provided with the hole of bead 312 of its tube wall of perforation, be equipped with a steel ball 313 in this hole of bead 312, and the aperture of these hole of bead 312 medial extremitys makes this steel ball 313 be protruded unlikely dropping by sleeve pipe 31 inwalls less than steel ball 313 diameters.At sleeve pipe 31 front ends, be provided with a larger-diameter flange 314, can install a baffle ring 315 between the hole of bead 312 of this sleeve pipe 31 and the rear end, this baffle ring 315 is just to load onto after a spring 32 and an outer tube 33 are sheathed on sleeve pipe 31 outer rims.

Above-mentioned spring 32 1 ends push the flange 314 of sleeve pipe, the other end pushes outer tube 33, and the inwall of this outer tube 33 is provided with an annular groove 331 that can supply steel ball 313 to stretch into, because supporting of spring 32 compeled, outer tube 33 is with the press section 332 pushing tow steel balls 313 of not establishing annular groove 331, makes it to projecting inward.

According to above-mentioned structure, after assembling was finished, promptly becoming one can be for the diesinker that loads and unloads band handle emery wheel fast.Certainly, as shown in FIG., for cooperating the utility model, shank 41 its structures of this band handle emery wheel 4 also change to some extent, that is: the shank 41 of emery wheel 4 is provided with a drive portion 411, a location division 412 and a stop part 413.Wherein drive portion 411 has the non-circular cross-section shape, and can with drive portion 272 complementations of diesinker.Above-mentioned location division 412 is the bodies of rod in a rounded cross section, and the nargin between the aperture of the diesinker location division 311 of its diameter and its insertion of confession is very small, and these location division 412 diameters are then greater than the distance between drive portion 411 2 diagonal.Stop part 413 is a concave ring groove, between location division 412 and drive portion 411, embeds for steel ball 313.

The utility model in the use, be with earlier outer tube 33 being promoted forward on the other hand, make its annular groove 331 corresponding steel balls 313, and allow steel ball 313 that the space of outwards moving is arranged, at this moment, gripping emery wheel 4 with another hand axially inserts its shank 41 by sleeve pipe 31 front ends, and the drive portion 411 that makes shank 41 enters the drive portion 272 of rotating shaft 27, and the also corresponding steel ball 313 of stop part 413, unscrew outer tube 33 again, this outer tube 33 promptly borrows the thrust of spring 32 rearward to move, and makes its press section 332 push steel ball 313, make it to the stop part 413 that is embedded in shank 41, promptly finish the action of assembling band handle emery wheel 4.

Because drive of the present utility model portion 272 has the hexagon cross section, so when drive also is the emery wheel 4 drive portions 411 in hexagon cross section, can not produce the phenomenon of slipping.Again, because it only plays the effect of driven rotary, so the required precision of the two cooperation is not very high.

Because location division 311 of the present utility model is rounded cross sections, so be very easy to the machining accuracy that reaches required.Like this, it can do the very small precision-fit of nargin with also emery wheel 4 location divisions 412 in rounded cross section, and then so as to supporting emery wheel 4, makes it unlikelyly rock or eccentric phenomena arranged.Therefore, can be easy to obtain the accurate locating effect the same with commonly using collet chuck.

Because the utility model can embed the stop part 413 of emery wheels 4 with steel ball 313, so also can not produce emery wheel 4 phenomenon that axially slips away.In addition, support urgent stop part 413, also can reduce the vibration of 311 of emery wheel 4 shanks 41 and diesinker location divisions with this steel ball 313.

Because the utility model does not need tool using, and can reach due accurate positioning function, therefore significantly promoted the effect of using.

Please refer to Fig. 5,6, it shows the utility model second embodiment, in this embodiment, the drive portion 61 of the fixture of body 5 front ends 51 and location division 62 all are the same slotted eyes that sleeve pipe 63 inwalls by rotating shaft 52 front ends forwards extend, and drive portion 61 is by the opposite side of the location division 62 inner edge surfaces section configuration to projecting inward and semicircular in shape.Certainly, 71 palpuses of the shank of the emery wheel 7 that cooperates with this embodiment are designed to the structure with drive portion 61, location division 62 complementations.

Claims (7)

1, a kind of diesinker comprises:

One body generally is hollow tubular, and air intake is established in the rear end, and front end is then axially installed an air motor, and the body front end is axially stretched out in the rotating shaft of this motor; And

One is fixed in the fixture in the rotating shaft, axially inserts wherein and is positioned for the shank of band handle emery wheel;

It is characterized in that:

Described fixture is to revolve with a hollow sleeve to lock in the rotating shaft, and after the two combination, form one and play axially extended drive portion with non-circular cross-section by the rotating shaft front end, an and location division with circular cross sections, this sleeve pipe is provided with the hole of bead that connects the location division tube wall, be provided with a steel ball in this hole of bead, and this steel ball can be sheathed on the outer outer tube of sleeve pipe by one crowded and protruded by inside pipe wall.

2, diesinker as claimed in claim 1; it is characterized in that; drive portion on the described fixture is the groove that is extended to this rotating shaft rear by the rotating shaft front end, and the location division then is the slotted eye that the internal surface of sleeve pipe by the rotating shaft front end forwards extends, and the location division drives minister.

3, diesinker as claimed in claim 1 is characterized in that, drive portion on the described fixture and location division are the same slotted eyes that is forwards extended by rotating shaft front end edge internal surface of sleeve pipe, and drive portion is to projecting inward by the location division inner edge surface.

4, diesinker as claimed in claim 1; it is characterized in that; the front end of described sleeve pipe is provided with a flange; and between the hole of bead and rear end, establish a baffle ring; described outer tube wall is provided with an annular groove that can supply steel ball to stretch into, and this outer tube is made a press section remain on the crowded state that pushes away steel ball by a spring shaft to pushing.

5, diesinker as claimed in claim 1 is characterized in that, described drive portion one has the axial notch in hexagon cross section.

6, diesinker as claimed in claim 1 is characterized in that, described drive portion is protruded by the internal surface of sleeve pipe opposite side, and the semicircular in shape cross section.

7, diesinker as claimed in claim 1; it is characterized in that; the employed emery wheel shank of described diesinker is provided with a drive portion, a location division and a stop part; this drive portion has non-circular cross section; and can with the drive portion complementation of diesinker; it is the body of rod with circular cross sections that the diesinker location division just can be inserted in described location division one, and stop part then is the concave ring groove that can supply a steel ball to embed, and between location division and drive portion.

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