DE3024240A1 - Cutter for rubber seals - has workpiece drive to rotate and reciprocate it and similar drive for cutting tool - Google Patents

Abstract

The cutter has, mounted on a bed, a charging feed for a blank (3) to a gripper (4). This has a reciprocating motion drive (5) to shift the blank to a blank fastening (6). This has a drive (12) for imparting reciprocation and a drive (11) for imparting rotary motion. Securing clamps (45) are mounted on the bed to retain the blank driving fastening. Chucks (49) carry cutting tools (13) to process the blank, each having a drive (16) for imparting rotary and axial motion to the cutting tool. After processing, a pusher (14) with a reciprocating drive (15) laterally removes the blank. The reciprocating drive for the fastening, the reciprocating drive for the gripper and the reciprocating drive for the pusher are associated with a distributing shaft (17) rotatable by a motor (18).

Description

3034240

DESI-IEIBUUG

The present invention relates to manufacturing of technical rubber products, in particular on a machine tool for processing the shape of red at ion bodies ρ er η having nV'erkpieces made of rubber.

This invention can be most effective for processing armored cuffs for skins of mechanisms and machines as well as used to complete the same with pederrin ^ en will.

In addition, the present invention can be used for processing, for example, rings of round cross-section, cuffs and other products made of rubber which have the J ¹ OCTi of hot at ions bodies.

There are currently the requirements for the processing quality the surfaces of rubber products have increased, including those Demand for these products has increased.

Generally known are machine tools for machining

Work pieces,

of the form of bodies of revolution ^ for example of cuffs, by removing superfluous rubber layers

in the form of budding and processing allowances by means of various Tools (knives, whetstones etc.) as well as // tools for the subsequent assembly of the armored sleeves with the spring washers. Such machines as Independent units usually have their own charging devices with mechanisms for the orientation of the workpieces and various executing functional organs.

In the technological process, these machine tools are in arranged in a certain order, each of them fulfills its own functions. And as a rule, the

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the final operation of machining the workpieces Packaging. Am system of machine tools that are in a Production line, takes up considerable production area η, makes the entire construction scheme, the transport of workpieces between the individual work steps, maintenance and servicing are more complicated. And in general, this system reduces the output per unit of production area.

The multiple presence of elements, for example loading and orientation elements, has an effect harmful to the quality of the manufactured products due to the multiple mechanical impact on them (mechanical Deformations, etc.), especially those like reinforced stuffing boxes (which are geometrically accurate, but not so are very stiff).

At present, a device for processing workpieces having the shape of bodies of revolution is made of rubber widely known, in which the machining is carried out on a red mandrel. Here, the workpiece is on the Mandrel not mechanically attached, and the operator processes the edge using a cutting tool by holding the workpiece with her hand. The cutting tool is also not mechanically attached and is located in the hand of the operator.

This leads to an increase in the dangerousness of the work. In addition, the _above facilitated even treatment of the workpiece is not guaranteed.

A device for processing is widely known

of workpieces made of rubber that take the form of bodies of rotation have, containing a device for receiving workpiece

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ken, which is designed as an elastic shim, and a Senneid tool, the cutting profile of which is geometrical to the shape corresponds to the surface of the rubber workpiece to be machined. The cutting tool has a complicated one on the circumference Working surface and rotates when machining the work piece at high speed

However, this cutting tool can only have one surface to edit. Such a cutting tool can workpieces with Do not machine large diameters because the dimensions of the workpiece to be machined match the dimensions of the cutting tool themselves are related.

In addition, between the support surface of the workpiece such a frictional force is generated from rubber and the elastic shim that exceeds the frictional force, which results when machining the workpiece, and this condition cannot always be met ... Consequently, Slipping of the workpiece is possible, causing on its Surface scratches occur.

In addition, this facility does not guarantee any Machining of two or more surfaces, including machining of workpieces, at the same time, comprising several operations with large dimensions of the surfaces to be machined.

A machine tool for Assembly of armored sleeves with spring washers, which are a loading device for the supply of the machined Contains work pieces made of rubber and a bunker for feeding the spring washers. The loading device and the bunker have guides that run at an acute angle relative to each other. The machine tool also contains

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ne mechanisms for moving the workpiece and a device for controlling the quality of the completion, the consists of electrical contact pins mounted in an electrical circuit.

only

However, this machine tool ^v can be used to complete workpieces of a certain shape, namely workpieces in which the end faces located on the completion side are located in one plane.

A device for inserting spirals is well known Spring washers in sealing collars, which form a loading bunker for storing the processed sealing collars and contains a bunker for storing the spiral spring washers.

The bunker for storing the processed sealing sleeves is equipped with a mechanism for feeding the Cuffs in place of assembly with the spring washers provided, which is designed in the form of an inclined sprung offshoot, which has a curvilinear working surface.

The bunker for storing the spiral spring washers is also equipped with a mechanism for feeding the Fit the spring washers with the sealing collars at the point of assembly.

This mechanism is similar to the mechanism for the The machined sealing sleeves are fed in.

The aforementioned facility only performs a single operation the assembly of the machined sealing collars with the spiral spring washers with quite a high degree of complexity and bulkiness of the machine tool.

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gin, also known, is a remote machine tool for Processing of armored cuffs.

This machine tool includes a rack-mounted one Device for receiving a cuff blank which has a drive for rotating the same. This device includes a shaft with a mandrel on which the sleeve blank is mounted. aside from that The machine contains two devices for clamping the cuff blank during the working process on the -iJorn of the device for receiving the cuff blank, which are designed in the form of pressure rollers, which are mounted on the movable tailstock, which has a cross piece are. This tailstock also has devices for holding and clamping cutting tools for machining of the cuff blank, each of which has one Has drive of the axial displacement.

In the aforementioned machine tool, the armored sleeve machining process requires execution many manual auxiliary operations. The cuff blanks are manually placed on the mandrel of the device for receiving of the cuff blank placed in the processing zone. Then the tailstock with the cross piece is moved by hand, which the devices for clamping the mansohette blank and carries the devices for receiving and clamping the cutting tools. After machining the cuff blank these movements are repeated manually in reverse order. Here, too, the work is not without its dangers.

In addition, the service life of the cutting tool is not

great because it wears out quickly as a result of constant

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Contact at one and the same point with the one to be processed Surface of the armored cuffs.

This is also used when machining the armored cuffs no flat surface of the machined collar edge is ensured on the said machine tool.

Apart from the above, only the mechanical processing of the armored ones takes place on the machine tool in Hede Cuffs with quite a high degree of complexity and bulkiness of the machine.

The purpose of the present invention is to eliminate the aforementioned difficulties.

The invention is based on the object of such a machine tool for machining the shape of bodies of revolution having workpieces made of rubber to scnaffen the it would allow the performance through automation of all To increase the processing of rubber workpieces, to improve the processing of good tools, the production output per unit of the production area increase as well as the dangerousness of working on the machine to reduce.

The task set is to create a machine tool for machining the shape of bodies of revolution having workpieces made of rubber, which - mounted on the frame - a device for receiving a workpiece blank, one drive for rotary motion

the same has devices for clamping the ifferkrstückrohlings during the machining process on the device for receiving the workpiece blank, devices for receiving and clamping cutting tools for the

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Machining of the packer blank, each of which has one Has a drive for the axial displacement of the respective vision cutting tool, according to the invention ferkzeugmasohine a loading device mounted on the frame for feeding the workpiece blank to a Mechanism for driving the .Verkstückrohlings, which is mounted on the frame, has a drive for reciprocating Has movement and to move the workpiece blank from the loading device to the device for receiving of the »workpiece blank is determined, which apart from the Rotary drive also has a drive for Mn- and forwards movement with the workpiece blank placed on it which is machined by a set of cutting tools during rotation and after machining

- processing is ejected by a ram, which is techno-

Behind
according to the frame ν of the device for receiving the

Verkstückrohlings is arranged and a drive for

has reciprocating motion, the drive being reciprocating

Movement of the device for receiving the adapter blank, each drive for axial displacement each

corresponding cutting tool the drive for

reciprocating movement of the mechanism for driving the Verkstückrohlings and the drive for

reciprocating movement of the plunger kinematically linked to a control shaft driven by a motor is set in rotary motion, which in turn with the drive for rotary motion of the device Recording of the tferkatückrohlings is in connection.

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The execution of the machine tool according to the invention for machining of the shape of bodies of revolution Workpieces made of rubber offers the possibility of increasing the work performance by automating all work processes to increase.

The concentration of the mechanical processing of the workpiece blank allows the production output to increase per unit of production area. the Automation of the machining of the workpiece made of rubber allows multi-machine operation because the activity the operator actually on the monitoring of the

Machine tool work and periodic replenishment of the feeder limited with workpiece blanks made of rubber.

By eliminating many manual operations and the

Inaccessibility of the work zone of the machine tool for the The operator is the processing quality of the workpieces Made of rubber improved, working conditions are improved as well as the dangers of working on the machine tool decreased.

It is useful that in the machine tool for machining of workpieces made of rubber which are in the form of rotational bodies, the device for receiving the cutting piece blank is mounted vertically on the frame.

This allows the axis of rotation of the workpiece blank to be machined made of rubber can be arranged vertically. In this case, the orientation of the end faces of the workpiece blank horizontally and the workpiece is in the most stable position in space, which simplifies the orientation

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tion and the preliminary club of the workpiece blank into the machining a zone for the device for receiving the workpiece blank £ 8 guaranteed. Such an arrangement of the workpiece blanka rubber is also advantageous for the subsequent mechanical processing operations (displacement the workpiece blank after machining and the process of completing it with the spring ring).

It is desirable that in the four-machine tool for machining The device for receiving the workpiece blank is made of rubber workpieces in the form of rotational bodies represents a spindle which is located in a sleeve rotatable about its own axis.

This allows a very simple construction scheme of the drive to

To ensure rotary movement of the device for receiving the workpiece blank, i.e. constant rotation the device for receiving the Äerkstückrohlings without other ensure additional entanglement of the machine tool kinematics.

Bs iat favorable that in the machine tool for machining from the form of hot at ions bodies having work pieces made of rubber the drive for issuing a back and forth Movement of the device for receiving the workpiece blank is represented by a cam gear.

This allows the process of picking up and clamping the iierkstückrohlings before machining and the process of relaxing and removing the machined workpiece to automate *

This would also allow reciprocating

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Movement ^ of the rotating device for receiving the // piece blank & s ^ to grant the blank during the Rotation of the device for receiving the / piece blank to clamp and unclamp.

It is expedient for machining in the machine tool of having the form of bodies of revolution Workpieces made of rubber have a shim at the same time as the spindle arranged.

This enables stable centering of the rotating / workpiece blank after machining at the moment of the Braking on contact with the stationary surface of the machine frame by destroying the kinetic energy of the rotating machined workpiece blank.

Also, due to some other common Rotation when braking the machined // workpiece blank and the shim washer protects the support surface of the machined // component blank from mechanical damage (scratches, Scratches).

It is desirable that in the machine tool for machining of the form of bodies of revolution Workpieces made of rubber any device for clamping the Memory piece blank has a vväzlager during machining, which presses the workpiece blank against the device for receiving the workpiece blank, inside a thermal insulation cap is arranged and mounted on a mandrel which is hinged to a cantilever piece attached to the frame is.

This allows the workpiece blank to be machined to be reliably pressed against the device during rotation.

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tung ZUi? _Ü receiving the Werkstückeohlin s ensure to produce a sufficient Breinsmoment between the tferkstückrohl ing and apparatus for receiving the tferkstückrohlings. In addition, a low friction between the roller bearing and the contact surface of the workpiece blank is ensured and relative sliding at the points of application of clamping forces between the roller bearing and the workpiece blank is eliminated, which in turn ensures a good surface condition of the workpiece blank to be machined The help of / heat insulation caps against the heat developed by rotating friction is necessary in order to prevent the rolling bearings from overheating and to ensure their service life.

It is convenient that in the machine tool for machining of the form of .Rotationsbodies exhibiting Workpieces made of rubber, the cantilever pieces of the devices for clamping the .Verkstückrohlings on the frame relative to each other are attached with the possibility of a distance control.

This gives the possibility to use the -i / Erkzeuamaschine for processing of rubber components for a group of workpieces different type sizes duroh regulation of the distance from the axis of rotation of the device for receiving the -To use workpiece blank.

Bs is useful that in the machine tool for machining of the form of bodies of revolution exhibiting, agglutinating made of rubber, each device for receiving the clamping of the respective cutting tool contains a housing, in which the holder of the respective cutting tool is housed with a spring surrounding it, the housing in

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the height is adjustable on the own cantilever arm attached to the frame.

This allows the location of the cutting tool a i ™ · space both during the adjustment to different type sizes of the fiferkstückblinge to be processed, as well as during the Adjustment (correction of the gate size of the cutting tool) with the working pig ug machine to change, at the same time safe work on the machine tool and precise Dimension of the surface to be machined of the tferkstückrohlings even with insignificant wear of the cutting tool to ensure.

In addition, the presence of everyone ensures safe, trouble-free operation of the ./machine tool during sudden absence of the pneumatic medium that sets the cutting tools in motion.

JSs is convenient for that in the machine tool for machining The cantilever arms of each device are made of rubber components in the form of bodies of revolution for clamping the respective cutting tool to the frame with respect to each other with adjustable spacing

are attached.

This enables the machine tool for machining of workpiece blanks of different type sizes by rules the distance in relation to the fferketückrohlinge to be processed to use.

It is desirable that in the machine tool for Machining of bodies of revolution having the shape ^ Each cutting tool is made of rubber and can be rotated in the holder around its own axis by means of a screw connection

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is arranged.

This simplifies the structure of the movable cutting tool. In addition, the rotation of the cutting tool causes an increase in the length of its active working part. Here, the heat dissipation is improved, which leads to long-term operation of the cutting tool and for enlargement contributes to his work capacity and his downtime. The arrangement of the cutting tool in the holder creates the Possibility to reclamp the same in order to make full use of the material of the cutting tool.

It is favorable that in the machine tool for machining of having the form of hotat ion bodies Workpieces made of rubber, the screw connection is a pair of screws represents, which consists of a groove which is machined on the surface of the holder of the respective cutting tool, and there is a protrusion engaging in this groove, which is attached to the housing of each device for clamping the respective cutting tool.

This ensures a very simple structural solution for the screw connection in the case of a complicated one Working movements of the cutting tool.

In addition, the helical displacement of the cutting tool ensures a slow entry of the same in the work zone with a very limited time of the gate cycle, which leads to the long interaction of the cutting tool and the surface of the workpiece blank to be machined contributes and improves the processing quality.

It is useful that in the .Verkzeugmaschine for processing of having the form of bodies of revolution

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Workpieces made of rubber are the working part of every cutting tool cylindrical with a rounded end face

Gradual this is necessary in order to cut the

rotating and moving in the axial direction Ensure cutting tool in the surface to be processed. The rounded end face of the working part of each cutting tool facilitates rapid cutting of the cutting tool into the elastic edge of the workpiece blank during the axial movement of the tool, after the incision, as a result of the resilient, restoring deformation during processing, a continuous Removal of the material of the piece to be machined made of rubber.

It is desirable that in the machine tool for Machining of the shape of .Rotationsbodies having Workpieces made of rubber each drive for the axial displacement of the respective cutting tool in shape a compressed air drive is carried out.

This ensures a very simple mechanical cycle connection between the tendon id tools and the to machining piece blank.

It is convenient that in the remote machine tool for machining of having the form of hotat ion bodies Work pieces made of rubber the drive to the

- and moving the mechanism to take the tferkstüekrohl ings and the drive to the Mn-

- and previous assignment of the slide crank slider gear represent.

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This allows mechanisms to be created with the simplest of means, which ensure the compactness of the (ie including on b from the machine tool and the cycle connection of the execution mechanisms with the control shaft. The most important condition is the speed of the connections to be processed. workpiece blanks and. the absence of violent shock loads.

Reinforced rubber blanks that

have regular and accurate geometrical dimensions, tend to be significantly deformed and lose their exact dimensions even when attacked by low dynamic loads. The workpiece blanks made of rubber, the one have large coefficient of friction can be in contact with others Materials do not move quickly when being picked up from the loading device to the device for receiving the workpiece blank move there.

After machining the rubber blank, For example, reinforced sleeves for sealing the parts of ke chanisms and machines, the mansion blank is used

his
led to ν completion with the spring ring.

With separate work steps of the mechanical processing of the sleeve blank and its completion with With the spring washer, these operations are carried out on various // machine tools. Are in the technological process these machine tools are arranged in a certain order, each of them fulfilling its own functions. A system of machine tools operating in a technological Chain, takes up considerable product

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areas, makes the entire construction scheme, the transport that takes place between the individual work steps of workpieces, the maintenance and servicing more complicated. And in general, this system reduces the output per unit of production area.

With separate operations in the mechanized technological Expiration should be closed. machining cuff blank before being machined and then completed with the spring ring will be oriented in certain ways. The multiple mechanical impact on the armored cuff blank, the exact geometric dimensions, leads to the deformation of the same, which increases the reject

contributes and reduces the output of high quality products.

Therefore, it is favorable that the machine tool to Machining of bodies of revolution having the shape dPackaging made of rubber, for example armored sleeves for sealing the / parts of ßiechanisms and machines, a bunker mounted on the frame for storing spring washers with a device for dropping them onto the machined sleeve blank, which device is arranged above the plunger coaxially with it, and a mechanism for attaching the spring ring to this cuff

behind tenrohling, the technology-based ν the ram

is arranged coaxially with this.

This offers the possibility of the consecutive To combine operations of the technological process in one unit in which the once-oriented cuff

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The blank runs through the entire complex of finishing operations.

It also increases the amount of labor required to manufacture of products reduced, production area saved, that is, the specific production quantity per unit this area is enlarged.

The construction of the carried out according to the invention «The machine tool allows the work to be carried out Automation of all work processes and superimposition of the successive work processes of the technological Process (of the mechanical processing of the sleeve pipe ling and the completion of the same with the spring ring) to increase. In addition, the output per unit increases As the production area increases, the number of cuffs to be processed increases, so do the working conditions and the safety of working on the machine tool due to the elimination of many manual operations and the inaccessibility of the working zone of the machine mechanisms is improved.

As a result of the automation of the manufacturing process the possibility of multiple machine operation arises, because the activity of the operator focuses on the supervision of the #kzeuymachine work and the periodic replenishment the loading device with sleeve blanks and the filling of the bunker with "ederringen" is limited.

The following is the description of a concrete embodiment of the present invention with reference to the accompanying drawings; it shows:

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i ^. 1 Overall view of the machine tool according to the invention for the processing of rubber blocks, some of which are in the form of bodies of revolution

cut;

Fig. 2 is a schematic representation of the inventive machine tool, which has three devices for clamping the respective cutting tool, plan view;

Fi _Q. 3 a schematic representation of the machine tool according to the invention without devices for receiving and clamping the respective cutting tool, side view, namely from the side of the device for attaching spring washers;

Fifj. 4- Schematic representation of the device for Picking up and clamping of the respective cutting tool, according to the invention;

Fig. 5 is a section along line V-V of the FL-. 4th

The machine tool proposed according to the invention contains a loading device mounted on the frame 1 (Fig.l) 2, which can be of any previously known construction.

In the present case, the loading device 2 is designed in the form of a bunker vibrating system with an electromagnetic drive (not shown in the drawing). The Beschickun seinrichtung ^ 2 _b for a Zuführun / erkstückrohlings of // erkstückrohlings determined 3 to a mechanism 4 for driving 3, which is mounted on the frame 1, 5 has a drive for reciprocating motion and displacement of, / piece blank 3 to a device 6 for receiving

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of .Verkstückrohlings 3 is used.

The litendency 4 represents a driver 7, which is attached to a Ä'a & en 8, which with the help of Hollen 9 can be moved via guides 10 attached to the frame 1.

The drive 5 for reciprocating movement is used to Displacement of the vv'erkstückrohlinge 3 to the device 6 for Receiving the; Verkstückrohlings 3 »the one drive 11 for Granting a rotary movement and a drive 12

has to provide a back and forth movement with deji arranged on it pferkstückrohling 3, during the rotation by a set of cutting tools 13 is processed and after processing by a Plunger 14 is ejected, the technology according to the frame behind the device 6 for receiving the workpiece blank is arranged and a drive 15 for issuing a back - and past Be / jegun ^ owns. Here are the

Drive 12 for providing a reciprocating movement of the device 6 for receiving the. '/ Piece blank 3, each Drive 16 for granting an axial displacement to each corresponding cutting tool 13 »the drive 5 for granting a reciprocating movement of the mechanism 4 for driving the A'erkstückrohlings 3 and the drive 15 for issuing a reciprocating movement of the plunger 14 kinematically connected to a control shaft 17, which by a motor 18 is set in rotation, which its-

Drehj,

be with the «drive 11

of the device 6 for receiving the workpiece blank 3 in Connection.

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The kinematic connection of all drives 12, 16, 5, 15 with the control shaft 1?> Which is set in rotation by the motor 18, which transmits the rotary movement to the drive 11, automates all the processes involved in machining the ^! . \ ^; workpiece blank, as a result of which labor productivity is increased. In addition, the automation of the machining processes increases the production output per unit of the production area and also enables multiple machine operation.

As a result of the elimination of many manual operations and the inaccessibility of the work area of the machine tool for the person carrying out the work, the processing quality becomes the workpieces made of rubber are improved, the working conditions become improves as well as the dangerousness of work on the "? Erkzeua" machine.

The kinematic connection of the motor 18 and the rotary drive 11 of the device 6 for receiving the // component blank is done as follows. The motor 18 is offset by means of an intermediate shaft 19, at the end of which a drive pulley 20 is seated, a driven pulley 22 in Rotation associated with the sleeve 23 of the device 6 for receiving the tferkstückrohlinöS 3.

The device 6 for receiving the // piece blank 3 is mounted vertically on the frame 1 and represents a spindle 24 which is in the sleeve 23 which is rotatable about its own axis is arranged.

Such an arrangement of the device 6 for receiving the y / part blank 3 ensures the vertical position of the

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The axis of rotation to be processed Werkstuekrohlings J. In this case occupies the tferkstückrohling 3 the most stable position in the hem that the ease of orientation and Vorscnubs of "Verkstückrohlin _ö s 3 in the processing zone ensured. This arrangement of the piece blank 3 is also advantageous for the subsequent displacement of the piece blank 3 after machining.

Jer motor 18 is by means of the intermediate parts 19 on the a drive wheel 25 is seated, connected to a driven Had 26. The fiad 26 is on a driven // part 2? put on, which is attached to the frame 1 and connected to a gear 29 via an elastic coupling 28.

The gear 29 has a »VeHe 30 with two outlet ends. At one end there is a cam 31 which is connected to a pneumatic switch 32. At the second end of the shaft 30 there is a drive bevel gear 33 in which the end of the control shaft I7 is arranged. The control shaft 17 is mounted on the frame 1 by means of bearing units JA , between which a cam 35 is attached, which is kinematically connected to a lever 36

12 is. The lever 36 is with the housing 37 of the drive ν for reciprocating movement of the device 6 for receiving the tf'erkstückrohlings 3 connected. In this housing 37 is the end of the spindle 24 is mounted by means of a bearing 38 and nuts 39 and 40.

The spindle 24 is located in the sleeve 23 and is connected to it via a sliding spring 41. The sleeve 23 is on its axis by means of bearings 42 supported by a nut 43 are attached, rotatable.

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In the frame 1 is coaxial with the spindle 24 Compensating disk 44 arranged.

This ensures a stable centering of the rotating, Verkstückrohlin _e s 3 after machining at the moment of braking in contact with the fixed surface of the frame 1 of the machine by destroying the kinetic energy of the rotating machined Tferkstückrohlings.

In addition, as a result of some common rotation when braking the machined .Verkstückrohlings 3 and the Compensating washer 44 the support surface of the machined ./ workpiece blank 3 against mechanical damage (scratches, Scratches and the like.) Protected.

In accordance with the technology, there are over on the frame 1 the device 6 for receiving the .7 workpiece blank 3 two Devices 45 for .Clamping the work piece ohlin ^ s 3 »'years the processing of the same on the device 6 for receiving the, Verkstückrohlings 3 · These devices 45 for The workpiece blank 3 is clamped on the frame 1 symmetrical with respect to the axis of rotation of the. '/ part blank 3 arranged. Each device 45 for clamping the, Verkstückblings 3 contains a (not shown in the drawing)

rolling bearings, that sicn inside an iVe thermal insulation cap 46 is located, which is mounted on a Jörn 47 (Fig. 2 and 3) is, which is g "ienkig connected to a cantilever piece attached to the frame 1.

Such a structural design of each device 45 for clamping the adapter blank 3 is guaranteed reliable pressing of the workpiece blank to be machined 3 during rotation to the device 6

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for receiving the front part blank 3 and creates a sufficient one Braking torque between the workpiece blank 3 and the device 6 for receiving the workpiece blank 3

In addition, this construction guarantees of the device 45 for .clamping the »packaging blank 3 the generation of low friction between the thermal insulation cap 46, within which the // roller bearing is located, and the pressing surface of the 'Verkstückrohlings 3 u ^ -d eliminates that relative sliding at the points of application of the clamping forces between the rolling bearing and "older piece blank 3" which in turn a good surface condition of the workpiece blank to be machined 3 ensures.

The isolation of the rolling bearings with the help of '/ arm isolation caps 46 compared to the heat developed during rotating friction is necessary to prevent the rolling bearings from overheating and ensure their long service life.

en In the present example, two devices 45 are for

Clamping the Werkstückrohlin s _u 3 during Editing at the Vorricntunt !; 6 for receiving the Verkstückrohlings 3 shown. These devices 45 can, however, be present in any number that is necessary for better clamping of the component blank 3 during processing on the device 6 for receiving the component blank 3.

The cantilever pieces 48 (Fig. 2) of the devices 45 for clamping the workpiece blank 3 are on the frame 1 like this attached that the distance between them is adjustable.

This offers the possibility of using the .machine tool for

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the processing of .Verkstückblingen 3 different type sizes to use.

Era frame 1 are three devices 49 for receiving and clamping each of three cutting tools IJ attached. These devices 49 are in accordance with the technology the tferkstückrohling 3 arranged around that on the device 6 is attached to receive the workpiece blank 3.

In Fig. 2 three Vorricntungen are in the horizontal plane 49 shown for clamping the cutting tool 13, which are located in different sectors of a circle, the center of which is the axis of rotation of the workpiece blank.

This ensures the compactness of the construction the machine tool and optimal absorption of the forces resulting from the tendon tools during the machining of the workpiece blank.

However, any number of these devices 49 may be present to process the core piece blank 3 made of rubber is necessary.

Each device 49 for receiving and clamping the respective cutting tool 13 contains a housing 50 (FIG. 4 and 5) in which a holder 51 of the string id tool 13 (Fig. 4) is housed with a spring 52 (Fig. 5) surrounding it. Here, the housing 50 is on its own, Cantilever arm 53 attached to frame 1 adjustable in height arranged.

The height adjustment of the housing 50

good
ν by an existing in the housing 50, fixed in the axial direction screw 54 and a

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on the cantilever 53 existing guide nut 55. · The

FührUngarnutter 55 is T-shaped and in its groove strips 56 are used, which are attached to the housing 50 by screws 57 are attached, locking screws 58 fix the Housing 50 on the cantilever arm 53 after the height adjustment of the Senneid tools 13

Such a structural design of the devices 49 (Fig. 4 and Fig. 5) for receiving and attaching the respective Cutting tool 13 allows the spatial position of each tendon idwerkzeugea 13 both during the Adjustment to different type sizes of the ./erkstückrohlin^e 3 (Fig. 1) to be processed as well as during operation (the correction of the lead size of the cutting tool 13) to be changed while the tool machine is working. Here is the safety of the operation and an exact measure of the surface to be processed of the vVerkstücKTohlin ^ s 3 even with insignificant wear of the Cutting tool 13 guaranteed.

In addition, the presence of the spring 52 (Fig. 4 and Fig. 5) ensures trouble-free operation of the machine tool,
even if the pneumatic pressure driving the cutting tools 13 suddenly disappears.

The cantilever arms 53 of the devices 49 for clamping

of the respective cutting tool 13 are on the frame 1 in attached to each other with the possibility of a distance control.

This enables the machine tool for machining of Merkstückrohlingen 3 (Fig. 1) of different type sizes

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to use.

Each cutting tool 13 (Fi ^. 4 and 5) is rotatable by means of a screw arranged in the respective holder 51 to _se ine ^e i & ^alder axis.

The screw connection is a pair of screws consisting of a groove 59 on the surface of the holder of the respective cutting tool 13 is incorporated, and a projection 60 engaging in this hat, which on the housing 50 of the device 49 for clamping the Sehneidwerkzeuges 13 is attached.

The possibility of twisting any cutting tool 13 causes an increase in the length of its active working part. Here the / far me derivation is improved, what for long-term operation of each cutting tool 13 and for Contributes to increasing his work capacity and his downtime.

The arrangement of each tendon tool 13 in the respective Holder 51 enables the cutting tool to be reclamped Purpose of the full utilization of the material of the cutting tool 13.

It also ensures the helical displacement each cutting tool 13 has a slow entry of the same into the work zone at a fairly limited time of the gate cycle, which results in the longest contact of the

Cutting tool 13 and the surface to be machined of the tferkstückrohlings 3 (Fig.l) contributes and the -ri Arbeituhagüte improved.

In this example, the working part is everyone

130063 / 02AS

Cutting tool 13 (Fig. 4) cylindrical with rounded End face formed.

This is necessary for normal cutting of the rotating and moving in the axial direction Cutting tool 13 (Fig.l) in the surface to be processed of the // workpiece blank 3. The rounded one Front surface of the working part of each cutting unit

(bumpless)

tool 13 favors the rapid ^ cutting into the elastic Edge of the piece blank 3 during the axial movement of the cutting tool.

This takes place after the incision as a result of a resilient restoring deformation during the Machining a continuous decrease in the material of the to be processed pork piece blanks 3 Each drive 16 (Fig. 4 and 5) for

Axial displacement of the respective cutting tool 13 is in Executed in the form of a compressed air drive and contains one in the housing 50 of the device 49 for clamping the cutting tool 13 arranged sleeve 61. In the sleeve 61 a hollow cylinder 62 is housed, at the ends of which with the holder 51 of the cutting tool 13 connected bearings 63 are arranged are. A sealing ring 64 is located between the sleeve 61 and the hollow cylinder 62. The hollow cylinder 62 is closed with a cover 65. A cover 66 is attached to the sleeve 61 on the side opposite to the holder a connector 67 attached to the pneumatic switch 32 (Fig.l) is in connection.

The execution of each drive 16 in the form of a Druok-

130063/0245

air drive ^ ewäh ^ eia * ⁶ * ^a very simple mechanical connection between the cutting tools I3 and the cutting piece blank 3 to be processed.

However, each drive 16 (Fig. 4 and 5) for axial displacement of the respective cutting tool ^ have any previously known construction.

The drive 5 (Fig.l) for back and forth

forward movement of the mechanism 4 for taking along the / s / bekstückrohlings 3 and the drive 15 to the

- and forthcoming movement of the plunger 14 provide a slider crank mechanism represent.

The drive 5 for the <- ^> of the mechanism 4 for driving the workpiece blank 3 <reciprocating movement? in sight of the device 6 for receiving the Workpiece blank 3 contains one connected to the tfagen 8 Loop 68, which is hinged to the frame 1.

A sliding block 69 is arranged in the groove of the loop 68, hinged to the end of a crank 70 is. The crank 70 is attached to a driven bevel gear 7I, which meshes with the bevel gear 33 and is attached to the frame 1.

The drive 15 for reciprocating Movement of the plunger 14 includes a loop 72 (Figure 3), which is connected at one end to the plunger 14 and articulated to the frame 1 at the other end. In the groove of the Loop 72, a sliding block 73 is arranged, which is articulated to the end of a crank 74. The crank 74 is attached to the control shaft 17.

In a variant of the machine tool for

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Machining of workpieces made of rubber in the form of bodies of revolution, for example armored sleeves 75 for sealing the shafts of mechanisms and machines, with subsequent insertion

of spring washers 76 which M rkzeu ^ machine has an on the frame 1 (Fig. 3) mounted hopper 77 for storing the spring washers 76 with a device 78 75 »which device coaxially to the discharge of the machined blank of the collar above the plunger 14 with it is arranged, and a mechanism 79 for plugging the spring ring onto this blank of the sleeve 75t which, according to the technology, is arranged behind the plunger 14 coaxially therewith.

The device 78 for ejecting the spring washers 76 on the machined blank of the cuff 75 contains a curvilinear groove 80, which by means of a support Bl on the Frame 1 is attached, and a distributor 82 of the spring washers 76.

The mechanism 79 for attaching the spring ring 76 on the blank of the sleeve 75 contains a T-shaped plate 83 with a curvilinear working edge. This plate 83 is on an axis 84 by means of cantilever pieces attached to the frame 1

85 arranged. The plate 83 (Fig. 2) is spring loaded

<it

86 loaded, one end of which on the plate 83 and the other End is attached to one of the cantilever pieces 85.

The embodiment of the machine tool described above offers the possibility of the consecutive To unite operations of the technological process in one unit in which the once oriented blank of the Cuff 75 the entire complex of finishing operations

120063/0245

"36-302424D

passes through.

moreover, the labor required for manufacturing of products reduced, the production area saved, i.e. the specific production quantity per unit of this area enlarged.

The machine tool for machining the shape of Rotary bodies having workpieces made of rubber works as follows.

The tferkstückrohlinge 3, veΓα en intended for processing are entered into the loading device 2.

First the loading device 2 is switched on. A continuous chain of the blank part 3 /; is fed to the driving mechanism 4.

Then the motor 18 is switched on, which drives the spindle 24 of the device 6 for receiving the adapter blank 3 with the aid of the drive 11 for rotating the device 6 for receiving the j / piece blank 3 in Rotations offset. The rotary movement is to the spindle 24 via the driven disk 22 with the sleeve 25 and the Transfer spring 41. At the same time, the spindle 24 of the device 6 for receiving the tferkstückrohlin ^ s 3 receives a back- - and forward movement from the drive 5 with a certain Time delay in the upper and lower positions of the device 6 for receiving the workpiece blank 3.

At the same time, the entrainment mechanism 4 begins to move back and forth in the following order perform: from the motor 18 the rotary movement by means of the drive wheel 25 ^ nd of the driven Hades 26 via the

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-37- 302A240

Intermediate shaft 27 and the elastic coupling 28 on the transmission 29 transferred, the output shaft 30 with the bevel gear 33 which meshes with the driven bevel gear 71 to which the crank 70 is attached. the As it rotates, the crank 70 swings the loop 68 by means of the sliding block 69 with respect to the one attached to the frame 1 lower joint. The top of the loop 68 shifts the floor 8 back and forth with the help of halls 9 »which move on the guides 10.

The common movement of the driver 7 with the drive 15 of the plunger 14 is done with a phase shift of about 180 °, such that at the time when the i'witnahmemechanismus 4 reaches the left creation, the spindle 24 of the device 6 for receiving the "Verkstückblingsrohlings" 3 is in the position of the lower standstill.

During the holding time of the spindle 24 in the upper position each cutting tool 13 performs a double stroke: one output from the drive 16 an axial one

Displacement of each cutting tool 13 and a decrease in the one comprising the holder 51 of the cutting tool 13 compressed Spring 52.

When the driver 7 moves from the right end position to the left, a workpiece blank 3 is removed from the loading device 2 taken and to the device 6 for receiving the tferkstückrohlinge 3 bi3 to match their Axes headed.

Furthermore, the rotating spindle 24 catches the piglet blank 3 on its upward movement and centers it

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-38- 302A240

same. At the same time, the device 45 pushes for clamping of the v-piece blank 3 to the piece blank 3 the spindle 24 on. Then the // workpiece blank 3 is created by adding it turns, lifted into the upper end position and rotates in this position for a certain time.

At the moment of the upper position of the rotating piece blank 3, the chaeid tools 13 approach the piece blank 3 from different sides, process it and then withdraw at the same time. The tferkstückrohling 3 _f pressed by the device 45 for clamping the / iterkstückrohlings 3 on the spindle 24, lowers together with them into the lower position.

Here the vVerkstückrohlin ^ 2 sinks first on the Compensating washer 44, while the spindle 24 by itself moves further downwards, away from the machined part blank 3 removed.

The machined part blank 3 is replaced by the shim 44 braked. A subsequent .iferkstückronline 3 seized by the driver 7 pushes the one that has just been processed (ÄTerkstückrohling 3 by a distance that corresponds to the Outside diameter of the latter is the same.

The ram 14 moves the machined part blank 3 across the surface of the frame 1 in the transverse direction.

In the process of mechanical machining of the workpiece blank 3, it is possible to cut the lead size of each of the cutting tools 13 by rotating the in the axial direction fixed screw 54 after this or that side.

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Before setting the altitude, the Cutting tools 13 loosened the locking screws 58 and after adjustment tightened to the cutting tools 13 to give a stabilized position in relation to the workpiece blank 3.

If the working part of the cutting tool 13 is worn or dulled, it will move to a different sector Circumference of the arrangement of the ^ cimeid tools 13 spanned.

.The pneumatic switch 32 ensures a each cutting tool 13 the working stroke by supplying compressed air to the drive 16 for axial displacement of the chord id tooll3> for the retraction of the comprehensive spring 52 ensures, which in the form of the groove 59 and of the screw pair executed in this engaging projection 60 at the same time a rotation of the cutting tool 13 causes about its longitudinal axis.

In the variant of the machine tool that is intended for processing the armored sleeves 75, the machine operates in a similar way to that described above.

In addition, the spring rings 76 are in the bunker 77 for Storage of the spring washers 76 poured.

Here the bunker 77 is switched on first. the Spring washers 76, which are intended to complete the armored cuffs 75, become the device 78 for their release postponed. A spring ring 76 is by means of the dispenser 82 issued for the cuff 75 to the mechanism 79 for attaching the spring washers.

The plunger 14 moves the blank of the sleeve 75,

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while the T-shaped plate 85 with its curvilinear surface the spring ring 76 presses against the ixanschette 75 and the latter completes. At the next Hab des Plunger 14 is the previous cuff with the attached Spring ring 76 thrown off the machine frame 1.

The machine tool operates in the automatic cycle, and the work is limited in effect to the periodic replenishment of stocks of Ä ^f erkstückrohlingen 5 in the -Beschikkungseinrichtung 2 and spring washers 76 in the hopper 77 as well as the monitoring of the w'erkseugmaschinenarbeit and the periodic adjustment of the cutting tools IJ.

The machine tool cycle can be calculated that the processing of the // piece blank and the completion the same is done with the spring washer in the course of a maximum of 3 seconds

The performance of the machine tool can be dependent on can be changed by the type size of the "/ part" being processed on the machine. this happens by changing the speed of rotation of the control shaft 17 the machine tool.

itfÖ63 / 024S

Claims (1)

Cherkessky Zavod Rezinovykh. Tekhnicheskikh Izdely ■ MACHINE TOOL FOR MACHINING THE SHAPE OF WORKPIECES MADE OF RUBBER WITH ROTATING BODIES PATENT CLAIMS rl. Machine tool for machining the shape of Rotary bodies having workpieces made of rubber, containing - A device for receiving a workpiece blank with a rotary drive, - Devices for clamping the workpiece blank during processing on the device for receiving the dferkstückrohlings and - Devices for receiving and clamping corresponding cutting tools for processing the Workpiece blanks, - each of which has a drive for the axial displacement of the respective tendon tool, 130063/0245 -2- 3024249 marked by. a loading device mounted on the frame (1) (2) for feeding a workpiece blank (3) to a mechanism (4) for driving the workpiece blank (3), which is mounted on the frame (1), a drive (5) for reciprocating movement üat and for moving the v-piece blank (3) from the loading device (2) to the device (6) is intended to accommodate the workpiece blank (3), which have a drive (12) also for hixi and forwards movement with the workpiece blank (3) placed on it, which is machined during rotation by a set of cutting tools (13) and after processing, ejected by a ram (14) is, the technology according to the frame (1) behind the device for receiving the Aferkstückrohlings (3) is arranged and a drive (15) for back and forth has moving movement, wherein the drive (12) for back and forth forward movement of the device (6) for receiving the tferkstückrohlings (3), each drive (16) for axial displacement of each corresponding cutting tool (13), the drive (5) for reciprocating movement of the mechanism (4) for driving the tferkstückrohlings (3) and 130063/0245 the drive (15) for the reciprocating movement of the plunger (14) kinematically • are connected to a control shaft (17) which is set in rotary motion by a motor (18) will, which in turn with the drive (11) for Rotational movement of the device (6) for recording of the workpiece blank _e s (3) is in connection. 2. .yerkzeugimas chine according to claim 1, characterized Ichnet that the device (6) for receiving the workpiece blank (3) is mounted vertically on the frame (1) is. 3. Machine tool according to claims 1 or 2 or 3i identified by the fact that the device (6) for receiving the workpiece blank (3) represents a spindle (24) which is rotatable about its own axis Sleeve (23) is located. 4. Machine tool according to claims 1 or 2 or 3 » characterized in that the drive (12) for reciprocating movement of the Device (6) for receiving the tferkstückrohlings a cam lever gear represents. 5. «Machine tool according to claims 3 or 4, d adurch characterized in that a shim (44) is arranged on the frame (1) coaxially with the spindle (24) is. 6. «Machine tool according to any one of the claims 1-5, characterized in that each device (45) for clamping the dferkstückroh- 130063/0245 -4- 302A249 (3) Has a roller bearing during machining that the vverstückrohling (3) to the device (6) for receiving of the «adapter blank (3) presses, arranged within a thermal insulation cap (46) and is mounted on a mandrel (47) which is connected to a cantilever (48) attached to the frame (1) is articulated. 7. Machine tool according to claim 6, characterized gekennze ichnet that the collar pieces (48) of the devices (45) for clamping the tferk piece blank (3) on the frame (1) relative to one another with an adjustable distance are attached. d. Machine tool according to any one of the claims 1-7 »characterized in that each device (49) for receiving and clamping the respective cutting tool (13) contains a housing (50), in that of the holder (51) of the respective cutting tool (13) is housed, with a spring (52) surrounding it, the housing (50) being adjustable in height on the own cantilever arm (53) is arranged on the frame (1) is attached. 9 · machine tool according to claim 8, characterized Ichnet that each cantilever arm (53) of each device (49) for clamping the respective cutting tool (13) on the frame (1) with respect to the other cantilever arm (53) of the same device (49) with adjustable Distance is attached. 130063/0245 10. Machine tool after. Claim 91 d ad u r c h gekennze ich.net that every cutting tool ($ 1) rotatable about its own axis in the respective holder (51) arranged by means of a screw connection. 11. Machine tool according to claim 10, characterized characterized in that the screw connection is a A pair of screws consisting of a groove (59) »the one on the surface of the holder (51) of the respective cutting tool (1 ^) is incorporated, and one in this groove (59) engaging projection (60), which on the housing (50) of each device (49) for clamping the respective Cutting tool (13) is attached. 12. Machine tool according to any one of the claims 1-11, characterized in that the working part of each cutting tool (13) is cylindrical with rounded end face is formed. 13 »Machine tool according to any one of the claims 1-12, characterized in that each drive (16) for axial displacement of the respective cutting tool (13) in the form of compressed air drives is executed. 14. Machine tool according to any one of the claims 1-13, characterized in that the drive (5) for reciprocating movement the mechanism (4) for driving the workpiece blank (3) and the drive (15) for the reciprocating movement of the tappet (14) represent a slider crank mechanism. 15. Machine tool for machining the shape of Rotary bodies having workpieces made of rubber after 130063/024 5 any one of claims 1-14, for example for machining of armored sleeves for sealing the shafts of mechanisms and machines, thereby marking I don't think she owns - a bunker (77) mounted on the frame (1) for storing triple eder rings (76) - With a device for dropping it onto the machined blank; the armored cuff (75) ι - which device is arranged coaxially with it above the plunger (14), - And a mechanism (79) for plugging the spring ring (76) onto this blank of the armored cuff Behind - According to the technology ν coaxial with the plunger (14) is arranged with this. 130063/0245