DE1903337U - DEVICE FOR AUTOMATIC GENERATION OF AN EDGE BREAKAGE AND DEBURRING OF TOOTHED WORKPIECES. - Google Patents

Description

?. ■ ^: BAi 722 7O6 * -9.11.63

SCHNELLPRESSENFABRIK AKTIENGESELLSCHAFT

: Heide 1 b - er "g: ■. Alte EüOelheimerstrasse 17-21

Device for automatic generation an edge break and for deburring toothed workpieces »

The invention relates to a device for the automatic "generation of a broken edge and deburring of toothed" workpieces by a disk-shaped grinding tool controlled by the tooth flanks, the driven shaft of which is rotatably mounted ^{in a tool carrier arranged so that it can pivot 1 ».} .

Devices for deburring gears are known ..; in which a votor in the form of a tool carrier is suspended so as to be pivotable about a horizontal axis, a grinding wheel being attached to the free stump of the drive shaft of the motor. is brought. The suspension of the tool containing the engine;. The carrier is such that the grinding wheel is pressed onto a workpiece rotating around a vertical axis. The grinding pressure for deburring the tooth flanks is thus generated by the weight of the pivoted motor. As a result, only the upward facing tooth flanks of a clamped workpiece can be deburred. Furthermore, the known device due to the time adjustable grinding pressure only up to a certain speed of the workpiece comparable "weridbar This speed limit is verhältnisniässig ... -... ~ Low With lying above this limit speed" -des workpiece, the grinding wheel jumping over away the teeth; so that either one side of the tooth flank is provided with an insufficient fracture or, in the worst case, no fracture at all. "" - -

- A further disadvantage is in the known device, the loading _"restriction to certain tooth sizes teeth with relatively large...". Modules can only be provided with an edge breakage with difficulty or not at all, because the grinding wheel takes the required path, which it has to grind along the tooth flank, due to the "mobility of the tool holder" only in a vertical direction ^; Can't run direction-. ". '". ■ ""

The aim of the invention is to remedy the deficiency of the known device and also ^{to enable a perfect edge breakage of all tooth modules and additional deburring of the generated breakage.} According to the invention, the tool carrier in a tool holder head Arranged pivotably about an essentially vertically extending axis, with a fecter organ provided in or on the tool mounting head acting on the tool carrier and moving the grinding tool in the direction of the workpiece driven by a drive device such is “that the grinding takes place in the direction of the workpiece.

The particular distribution compared to the device according to the invention The acquaintance can see that there are several tool holder heads can be arranged side by side, creating one or more gears or racks at the same time on both sides. can be upgraded «Ausserderr. there is the possibility of inde- pendently. pending in front of the grinding wheel diameter i.e. with the same tool, Gear wheels or racks all borrowed in mechanical engineering r ^ oduls to edit. So the grinding wheels can ■■ themselves then still be used when they are worn down to a small diameter, with a device according to the invention This means that not only the machining time but also the time to reclamp the tools can be reduced considerably. Furthermore are tool costs "saved,

At the chamfer with grinding wheels usually a fine-Gi ¹ because at j remains, there is a development of the invention is that ain VJerkzeugaufnahmekopf a tool to the grinding. tool downstream round steel brush for deburring the tooth flanks provided with broken edges is adjustable, - -

In a particularly favorable embodiment of the invention the fifth tool pick-up head has a u: r> a horizontal axis bevjegllchen Tsil on., on which the tool carrier is mounted and by means of a swivel device in; Cycles of the to be deburred Cream is swung up and down. This additional pivoting option of the tool arm in the vertical direction enables the Creation of a flawless edge break even with teeth one module larger than module 5-

In the bellows, an embodiment of the invention is explained with reference to the drawing.
It mean?

Fig. 1 shows a machine for generating an edge break with additional Deburring device according to the invention in Elevation ;.

Fig. 2 the same machine in side view?

Figo 3 the same machine in plan view,

Fig. 4 is a vertical section through a Werkzeugaufnahir.ekopf according to the invention.,

FIG. 5 is a plan view of two tool receiving heads according to FIG Invention., With parts shown in section and

Fig. 6 is a schematic representation of the direction of rotation of the Grinding wheels relative to the workpiece.

In the machine frame 1 of a machine for producing a Xanten fraction with additional deburring device according to the invention, a workpiece mounting spindle 2 is mounted horizontally. Its free end for receiving the workpieces protrudes laterally from the machine frame. It is provided in it with an automatic clamping device 3, with which each workpiece is clamped. The Aufnahrr.espinclel 2 receives its drive from a continuously variable transmission k _s which urrcergeb within the machine frame 1; eight is. The gear ^ i- used for continuous control aer operating speed, it is provided with a preselector for adjusting the angle of rotation of the clamped workpiece ge-Koppelto Kit using the preselector - the in the figures. r.ich'c is shown - angles of rotation of the workpiece can be set, which are larger or smaller than y 50 degrees, so that, for example, all toothed segments can be deburred with a device according to the invention,

_ h.

The machine frame has a bed 5, in which a slide 6 is slidably mounted, which carries a boom 7 = This boom 7 consists of a vertical support column 8 as well as a horizontally extending boom arm 9- The vertical support column 8 is on the Slide β attached. At its head end, a handwheel 10 is provided for operating a spindle, by means of which the horizontally extending cantilever arm 9 can be adjusted in the vertical direction, as indicated by the arrow 11 in FIG. The whole boom 7 can by means of an air cushion 12 in the bed 5 in the direction of the v, ^r e rkstücksauf would take spindle. 2 shifted back and forth = this adjustability is indicated by the arrow 13 in Figo3 =

On the cantilever arm 9 * which runs parallel to the axis of rotation of the workpiece mounting spindle 2 ₅ , two tool mounting heads 14 and 15 are adjustably mounted. By means of a handwheel 1β provided at the free end of the boom arm 9, they can be adjusted parallel to the axis of rotation of the V / Erkstückaufnahmespindel 2. =

In Figures 4 and 5, the tool receiving heads 14 and 15 "shown in an enlarged May rod. Each tool holder head has one with the cantilever: 9 over a pin 17 firmly connected bearing part l8. in which a movable part 20 is mounted so as to be pivotable about a horizontal axis 19. In This in turn "is a vertically running bearing pin 21 arranged ^ on which a tool carrier 22 in the horizontal Direction is pivotally mounted, the rear end of the tool carrier 22 is via a tension spring 23 to the fixed bearing part Is connected to the tool holder head »The tension spring 23 endeavors to pivot the tool carrier about the bearing pin 21. In the movable part 20 of the tool holder head a locking cap 24 is also displaceable in the vertical direction arranged, which has a conical collar 2β ,, which cooperates with a sliding pin 27 "This G-Leitzapien 27 is in the movable part 20 of the tool holder: e ~ head attached = In its lower position, the locking, ram 24 the tool holder against the force of the tension spring 23 in a certain starting position,

The locking plunger 24 has a piston at its upper end 28 on the vertically displaceable in a cylinder 29. is stored. It is lowered into its lower position by a spring pO and moved to its upper position by compressed air acting on its underside,. .

In the pivotably mounted tool carrier 22 'is one of' the compressed air driven motor 25 is arranged, the drive shaft end Jl carries a grinding wheel 32,. "" ".

A pivoting device 34 i: acts on the movable part 20 of the tool pick-up head 14 or 15 via a piston rod 33 Piston 36 = the piston 36 is firmly connected to the previously mentioned piston rod 33. A compression spring 37 is arranged between the upper end of the cylinder and the upper side of the piston and tries to push the piston into its lower position the underside of the piston jo acts temporarily through the opening 38 compressed air entering, so that the piston is pushed upwards against the force of the spring 37 a The compressed air supply is controlled by an encoder 39 = the stroke of the piston is regulated by means of an adjusting screw 40- which is screwed into the upper cylinder base coaxially to the piston 36 »

The encoder 39 is "slidably attached to the machine frame perpendicular to the workpiece mounting spindle." Figure Ij shows its adjustable arrangement there are slide rails 41 indicated "The encoder consists essentially of a three-way valve" which is controlled by a slide 42 "- Ss . has a sintering '-;-opening 43 and a vent opening 44 and be ~ also sits a feed opening 45, which via a ^managerial: - processing the encoder 39 with the Ver swing device 34 connects ,, - - the pusher 42 is supported at one end against a spring 46, while the other end protrudes from a bore and has a. ■■ button k " . The button scans the profile of the teeth to be deburred. Depending on the position of the button, the. . .. slide 42 either the compressed air supply opening 43 or - ■ the compressed air venting opening 44 closed or »opened,. _- ■■

To the bearing part IS firmly connected to the cantilever arm 9 of the tool holder head is also the holder 50 of a Drive rotor 51 for its round steel brush 52 attached. This Bracket 50 is both displaceable and pivotable, so that the round steel brush 52 is set on the workpiece "The drive motor 51 is also driven by compressed air"

The operation of the machine according to the invention is as follows

After pressing the start button, the entire boom 7 is excited via the air cushion 12 in the direction of the workpiece 53 compressed air is blown into the cylinder 29, v ^r is pulled up odurch the Arretierstossel 24 23 this can the tension spring au.verschwenken the toolholder 22 toward the workpiece 53. Since both Werkseugaufnahrnekcpfe <...! -! - and 15 mirror images in construction to each other are arranged, their two tool carriers 22 pivot on each other until they are supported on the edges of the cream flanks of the workpiece 53.During the pivoting process of the tool carriers, the motors 25 and 51 of the grinding wheels 32 and the round steel brush 52 are in operation by compressed air supply In addition, the workpiece 53j, driven by the continuously variable transmission 4, begins to rotate Tool carrier respectively. of the grinding wheel relative to the workpiece is such that the edge break that is now created runs under the desired angle. "The size of the edge break can also be changed by adjusting the force of the tension spring 23 via an adjusting screw 5 ^"

The direction of rotation of the two grinding wheels 32 relative to the Workpiece 53 is indicated in Fig. 6 »The direction of rotation of the Grinding wheels must be such that the grinding when the edge breaks is ground in the direction of the workpiece, i.e. that the Grinding force or a component thereof, based on the swivel axis of the tool arm, generates a torque which that caused by the tension spring 23 counteracts. Would

this is not the case, i.e. H. the two grinding wheels turned 32 opposite to the direction of rotation indicated in Fig. 6, so the tools would seize up and destruction of the grinding wheels would be inevitable.

By rotating the workpiece 52, the are under spring tension stationary grinding wheels forced to follow the tooth flank profile. For teeth with a larger module than Mo- ■ dul 5 also the pivoting device 34 comes into action, indera they, controlled by the encoder 39, in time with the teeth of the "workpiece the grinding wheel 32 about the axis 19 in the direction of the Arrow 55 "pivots" by a certain angular amount ve!

The transmitter 39 works as follows: If the button 47 is on a tooth head, the slide 42 has the pressure, air inlet opening 43 and the supply opening 4-5 in the cylinder. ■ the 35 öer pivoting device 34 is open. The incoming pressure air pushes the piston 36 into its upper position: If the button 47 then reaches the next tooth gap, the input opening of the transmitter is closed and the ventilation opening is opened, so that the cylinder 35 is vented via this ventilation opening. As a result, the spring 37 is able to push the piston J> 6 into its lower position = according to the Koibenbevregung the tool carrier 22 is displaced "

If the clamped workpiece 53 »i this case, ^{n is} a tooth, rad., Performs a rotation of 36O degrees, so the air supply is interrupted to the cylinder 29 so that the spring 30 to push down the pistons and thus the locking ram 24 capable of -which means the tool carrier 22 is pivoted away from the workpiece into its starting position via the guide pin 27. The workpiece continues its rotation until the round steel brushes 52 have brushed and deburred all tooth flanks provided with broken edges.

As soon as all the teeth are broken and brushed, it is done over ' the compressed air cushion 12 a pushing back of the entire boom 7 in its starting position. The finished 'workpiece can now easily be exchanged for a workpiece that has not yet been machined = the tools obstruct this " Exchange process not «Then the process takes place again»

The invention is of course not limited to the embodiment described. Rather, it can be varied in various ways = For example, one can do without the movable part of the tool head Machine according to the invention only wants to be used for gearwheels up to module 5 _o This would also, for example, displace the displacement device ~ pk and the associated encoder 59 ...

It is also possible to use several tool mounting heads next to ", to arrange one another in such a way that two or three workpieces are machined on both sides at the same time. It is also conceivable that Spring member 2j5 for pivoting the tool carrier 22 in his Modify mode of operation, so that the grinding wheel .. ' ; 52 of the tool carrier 22 uniquely to the left against the tooth flank edge., of a clamped workpiece and after deburring to the right against the tooth flank edge of another clamped at the same time 'Workpiece can be employed. Here would have to however, the direction of rotation of the grinding wheel can also be reversed.

Furthermore, instead of the Kotoren operated with compressed air of course, other drive motors, such as Electric motors. Finding use = also controlling the movement ■ The tool can be operated hydraulically or electrically instead of pneumatically «.

Finally, it can be used to generate the edge break and subsequent Deburring the tooth flanks on racks, on the mounting spindle 2 a table can be attached in which a chain is stored " is that, driven by the take-up spindle 2, the transport takes over the racks along the tools.

Claims: "

Claims (1)

/ }} ι U- M hi / I unu i LL \ u U. J · \ u UJ -. ■. ; l) Device for the automatic generation of an edge break and angry deburring of toothed workpieces through one of the Tooth flank controlled disc-shaped grinding tool, whose driven shaft in a pivotable tool carrier is rotatably mounted. thereby g e mark net. that the tool holder is converted into a tool holder an essentially vertical axis is arranged so as to be pivotable is, that on the tool carrier an in or on the tool holder head provided spring member acts and the grinding tool in the direction of the driven by a drive device The workpiece is excited, and furthermore the direction of rotation of the grinding tool is such that the edge break produced in Direction is ground on the workpiece. . . "- 2 '"device according to claim I ^ da d u r- c h g e k e η η -. marks _ that on the tool holder head one of the grinding tools Downstream round steel brush for deburring, the tooth flank edges with broken edges are fastened in an adjustable manner is. ■ 5) Device according to claim 1, dadurchgeke η η ζ eich η et > that the tool holder head has a movable part about a horizontal axis on which the tool carrier is mounted and which is swiveled up and down by means of a swivel device in time with the teeth to be machined , 4} Device according to claims 1 to 5. » characterized in that one or more Werkzeugaufnahrr.eköpfe in relation to one or more workpieces ¹ adjustable on an extension arm are introduced " 5) Device according to claim h _s dadurchgeke η η - -. ζ .eich η .et. that on the boom two tool receiving heads are arranged adjacent, their. Tool carriers have opposite pivoting directions for simultaneous deburring of both tooth flank edges of a workpiece. . β) device according to claim 4, el a d u roh g e k e, η η drawing η et that at the boom tool pick-up heads with. -. reversible pivoting direction of the tool carrier are provided = 7) Device according to claim 1 to 6, d a ä u r c h ge, indicates that gowns for automatic line-up ' of the tool to the workpiece, sorie for automatic shutdown of the tool after deburring. 8) Device according to claim 1, characterized geke η η. -. _:. Eic ζ η et Iv, the drive means for the d.ass V / erkstllckaufnahrr.espindel with an adjustable angle degrees after pre- 'is selecting means coupled ^to: 9) Device according to one or more of claims 1 to 8 / characterized in that at least two Werkzeugaufnahr.eköpfe (1,4 and 15) are attached laterally adjustable on a boom arm (9) of a boom (7)., Vrobei the The boom (7) can be ^{displaced perpendicularly in the} direction of the core piece so that a tool carrier (22) and a vertical axis can be pivoted on each tool holder head. a bearing bolt (21) is mounted, in '/ rich tool carriers each a motor (25) operated by compressed air to drive a grinding wheel (p2) that is replaceably fastened to the motor shaft is arranged, that on each tool carrier there is one in the tool holder .head attached tension spring (25) acts. vrodurch ■ ■ the tool carrier is pivoted in the direction of the Uerkstück (53), and that both the pivoting direction of the tool carrier "(22) and the direction of rotation of the two grinding wheels (-52) are opposite to each other, 10) Device according to claim 9j characterized by g e k e η η, that in Kerkzeugaufnahirekopf (14 or 15) a.,. Cylinder (29) is provided, in which a spring-loaded Piston (28) is housed, vreIcher a locking plunger. (24), whose conical collar (26) protrudes from the cylinder and with a sliding pin (27) of the tool carrier (22) - ■ such Zusair.rr.en Ensures that the grinding wheel (52) is in one of Workpiece is held in the swiveled-away position., And that at Entry of compressed air into the cylinder (29) of the piston (28) against the force of a spring (30) is shifted., whereby the locking plunger (24) releases the sliding pin (27) so that the tool carrier (22) from the tension spring (23) in the direction of-the work- ■ piece can be pivoted,. ■. 11) Device according to claims 9 and ICL d a d u r c h marked that in a hole on the tool holder head (14 and 15) a holder (50) for the drive motor (51.) the round steel brush (52) is rotatably and displaceably mounted for the purpose of adjusting the round steel brush. 12) Device according to claims 9 to H ₃ & ad υ. ν ch. gekennzei ch η et that the tool holder head. (l4 ". besv .-. 15) consists of a bearing part (18) firmly connected to the extension arm (9) and a part (20) that is movable with respect to the extension arm, on which the tool carrier ( 22) is attached ₅ that the movable part (20) is mounted in the stationary so that it can pivot about a horizontal axis (19) and is connected to the piston rod Oj) of a pneumatic pivoting device (54) which is controlled by a pneumatic encoder (39) -irdj in such a way. that it swivels the movable part (20) of the tool holder head (14 or v; "15) iJTi cycle of the teeth to be deburred by an adjustable angle, 13) Device according to claim 9 to 12, since c. ur c. hgeke η η ζ calibration net, that the swivel device (34) has a pressure cylinder (35) ₃ of the tool head is attached to the stationary bearing portion (l8)., and in which a piston (3β) by means of compressed air against the force of a spring (37 ) can be pushed back and forth, ■ l4) 'device according to claim 13 * d a d u r c h g e k e η η s e i c h η e t ,, that the piston stroke of the pivoting device (34) ■ by a preferably ".coaxially screwed" into the cylinder base Adjusting screw (4o) is adjustable » 15) Device according to claim 12, α a et u 'rch "gek e η η seich η et _s that the pneumatic transmitter (59) has a button ( ¹ VJ) * which scans the tooth profile of the teeth of the workpiece and each according to its position, a pneumatic valve (^ f 2 to '46') which controls the compressed air supply for the cylinder (35) of a pivoting device (> τ) closes or opens, 16) Device according to claim 15 .. dad v. rch ge label h η et. that the encoder (> 9) is adjustable to workpieces of different sizes, for example, attached to the base frame.