KR100355405B1 - Finishing machine - Google Patents

Abstract

Finishing bands and compression bodies 76 have been provided for rounding the surface ends of very heavy products, for example main shafts or crankshafts consisting of crankshafts 12 for marine diesel diesel engines. Thereby, when the product is in the idle state during the finishing process in the rotational direction, a work is installed on the support ring 52 set up to rotate using the motor 74. The support frame 52 and the head frame 44 of the finishing-treatment head 34 fixed in the rotational direction are respectively vertically elongated so as to introduce the product end to be processed into or out of the processing head again. The impact point traveling through the ring axis is cut so that half of the treatment head 42 is separated and moved by the other half 40.

Description

Finishing machine

According to the known finishing machine of this type, the workpiece is rotatably supported on the mounting portion. The processing means is guided on a stationary pressurized body, the workpiece surface passes through the workpiece unit, and the material is cut from the surface of the workpiece and smoothed.

Especially for large and heavy workpieces, such as crankshafts for marine diesel engines, the mounting portion must be able to move the support shaft in the horizontal and vertical directions, so that each of the shafts is pressurized to machine surfaces such as crankpins. The use of this type of finishing machine requires considerable care and time since it must be accurately separated on the axis of the processing head provided through the arrangement. In addition, the workpiece of weight depending on the instantaneous rotational angle can be bent in various forms, and the workpiece can be supported at several geometrically equivalent positions, such as crankpins or spindles, which are separated in the axial direction. This can cause further processing difficulties, resulting in inaccurate machining.

The finishing machine must therefore be configured such that the finishing machine according to the preamble of claim 1 can be machined on a significant weight of the workpiece without the need to rotate the workpiece.

The present invention relates to a finishing machine for machining a workpiece surface of a circular cross section according to the preamble of claim 1.

1 is an axial plan view of a finishing machine for processing a crankshaft.

Fig. 2 is a side view showing the processing head of the finishing machine shown in Fig. 1;

3 is an enlarged axial plan view of a portion of the machining head shown in FIGS. 1 and 2;

Fig. 4 is a radial cross-sectional view in which the supporting and cam-operated unit is formed by the pressing body of the processing head and seen in the longitudinal direction of the cutting line IV-IV of Fig. 3;

Fig. 5 is an enlarged vertical sectional view showing an enlarged position of the engagement between the actuating part of the processing head and the fixed part configured away from the actuating part;

Fig. 6 is a sectional view showing a restraining unit for engaging the operating portion of the machining head to the fixing portion.

Fig. 7 is an axial view showing a variant of the finishing head deformed with the wound working band.

8 is an axial sectional view showing an electromechanical readjustment unit for the reference axis of the workpiece section to be machined, and the machining unit of the machining head shown in FIG.

9 is a sectional view showing a modification of the pressing body.

Fig. 10 is a sectional view showing another modification of the press body.

11 is a view of a turning roller for guiding a working band of a finishing machine.

Fig. 12 is a view similar to Fig. 7 in which a modification of the processing head for finishing with a supporting body connected in a floating state is constructed;

* Symbol description *

10 ... bed 12 ... workpiece

14 ... spindle 16 ... crank support

18 ... Crankpin 20 ... Support Unit

24 ... wheel 26 ... rail

34 ... machining head 36 ... thread spindle

40, 42 Head configuration 52 Support ring

76.Pressure element 148.Restriction unit

174 ... Accepting opening 216 ... Drive

According to the invention the problem is solved by a finishing machine having the features of claim 1.

In the finishing machine according to the invention, the pressing bodies and the processing means are arranged on a support ring, the support ring being rotatably supported in the stationary part of the processing head at the side. Thus, while the workpiece remains spatially constant, the fixed part which is slid and small in size with respect to the workpiece can be rotated for the machining operation.

In the finishing machine according to the present invention, since the large mass is not moved, the difficulty of controlling the relative speed between the processing means and the workpiece surface is eliminated. Further, for this reason, it is easier to control the machining head on the required reference axis of the workpiece surface of the circular cross section to be machined than the operation of controlling the workpiece on the axis of the machining head. According to the finishing machine of the present invention, there is provided an apparatus for supporting a workpiece which is significantly simplified compared with the prior art. For example, simple mountings and beds in large shelves can be used.

Advantageous embodiments according to the invention are provided in the dependent claims.

According to yet another embodiment of the present invention, since the support ring is divided and easily opened, in order to machine the workpiece surface of the circular cross section, the processing heads are easily enough with respect to each other from the workpiece surface of the circular cross section being machined. You can move it.

According to another embodiment of the present invention, the support ring consists of only two parts in consideration of simple manufacturing and processing operations.

In the finishing machine according to the present invention, when the machining of the workpiece surface is finished, after the support ring is opened, the machining head is simply moved in the horizontal direction of the workpiece, and then moved to the side of the workpiece to machine the adjacent workpiece surface. do. Thus, the processing head does not move vertically or only slightly.

According to another embodiment of the present invention, it is ensured that high cost is closed again both headframe parts and the support ring parts supported by the headframes without adjustment work.

According to another embodiment of the invention, both headframe portions are fast and reliably constrained.

According to the finishing machine of the present invention, the support ring portion supported by the movable head frame portion is automatically connected with the head frame portion after the head frame portions are opened.

According to another embodiment of the present invention, it is possible to simply detach the machining head from the workpiece surface to be machined and to continuously move over the adjacent workpiece surface. Thus, according to the finishing machine of the present invention, the components of the processing head are not replaced or disassembled.

In the finishing machine of the above type according to the present invention, it is ensured to continuously drive the support ring stopped at a specific position in the circumferential direction.

According to another configuration of the present invention, a plurality of machining processes are adjusted without changing the machining means between the machining processes.

According to still another embodiment of the present invention, the cross section of the processing means is guided by being press-fitted onto the press body, respectively.

In the finishing machine of the present invention, the operator can change the processing means simply and quickly.

It is particularly advantageous for the press body to be mounted on the replacement frame since the processing means can be premounted before the processing means cassette is selected. In addition, various press bodies together with various processing bands may be provided as fully prepared replacement cassettes.

According to another embodiment of the present invention, it is possible to remove various materials by various strong pressing forces at positions of the work surface which are continuously constructed with respect to each other in the circumferential direction. By this method, the degree of departure of a given workpiece can be eliminated in a short time.

According to another embodiment of the present invention, the contour of the cam surface operating on the pressing body is mounted quickly and flexibly.

According to another embodiment of the present invention, a combination of camring portions of various contours is formed without forming a step at a machining position.

According to another embodiment of the invention, the end of the cam surface is easily moved in the circumferential direction.

According to another embodiment of the invention, the axis of the machining head is adjusted on the axis of the workpiece cross section being machined.

According to yet another embodiment of the present invention, the processing head can be simply moved to another workpiece surface to be machined and positioned axially away from the workpiece surface of the circular cross section to be machined.

According to the present invention, the processing head can reciprocate in a small stroke due to the motion of the head frame and the processing head. In view of the good kinetic properties of the support surface, according to the above method, the microstructure of the declination structure is obtained.

In addition, the processing head is further axially reciprocated to increase material removal.

According to yet another embodiment of the present invention, the workpiece can be machined quickly, resulting in a larger number of machined surfaces.

According to the finishing system according to the present invention, the machining surfaces of the workpiece which are arranged back and forth in the axial direction but are not arranged in a straight line can be processed simultaneously.

According to the finishing machine according to the present invention, it is possible to simultaneously measure and measure the actual contour of the workpiece surface of the branch line being processed.

According to the finishing machine according to the present invention, since the ideal cylindrical shape of the straight workpiece surface to be machined can be obtained by the fastest and smallest cutting operation, the cylindrical shape is calculated during the movement from the output signal roll of the position sensor. According to each roundness deviation of the workpiece surface, the target axis is moved by the movement of the support ring axis.

According to the finishing machine according to the invention, it is not necessary to connect a cable or tube further between the rotating part of the processing head and the fixed part of the processing head.

According to yet another embodiment of the present invention, a polishing state and a high material removal action are provided which form advantageous kinetic properties.

According to another embodiment of the present invention, the bent front surface of the pressing body can be controlled by the slight error interval of the pressing body movement axis on the workpiece surface to be processed.

According to yet another embodiment, the pressing body face is adapted to be advantageous on the workpiece surface. Therefore, the magnitude of the bending strength of the spring surface forming the front of the pressing body can be changed.

According to the finishing machine according to the invention, for the axial reception of processing means, which are considered particularly advantageous to form a given axial reciprocating motion, the diverting rollers arranged on the pressing body are considered.

According to another embodiment of the present invention, the press body can be controlled in a larger eccentric state, so that a circular structure supported in the eccentric direction can be obtained by cutting the material by a simple method.

According to still another embodiment of the present invention, the automatic control function of a part of the circuit provided through the pressing body is cut off, and the hydraulic cylinder is confined to a given position.

According to another embodiment of the present invention, a spring action is simply obtained to accommodate the symmetrical positional error of the actual workpiece surface, and the spring action is guided to enhance contact with the front face of the press body.

According to another embodiment of the present invention, the pressing body front surface is completed. The present invention is explained in detail by the following examples with reference to the drawings.

Referring to Figures 1 and 2, a bed 10 of a machine, such as part of a large rotary machine, is shown, which bed is used to cut a marine crankshaft.

The workpiece 12, such as the crankshaft, typically has a length of up to 10 m (16 m unprocessed) and can be configured up to about 20 t (45 t unprocessed) in the finished state.

The work piece 12 has a main shaft 14 arranged on the work piece, and the work piece 12 is supported in the engine housing and has a crank pin 18 in a connected state on the crank support 16. The work piece 12 is supported on a tailstock, which may be configured before and after the bed 10 and the drawing. In order to prevent the crankshaft of the weight provided as the work piece 12 from being bent and to easily adjust the crankshaft, a support unit 20 is provided as a whole, the support unit being arranged on the slide 22 at the axial side in the horizontal direction. The support unit 20 has three rollers 28 each, the rollers being arranged at an angle and the main shaft being perpendicular to the drawing and movable parallel to the wheels 24 and the rails 26. It can be fixed on the surface of 14, so that the outer rollers 28 are arranged on the rotatable arms 30 so that the support unit 20 can be used for various diameters of the crankpin.

At the same time another slide 32 is constructed perpendicular to the figure of FIG. 1, and a processing head 34 for finishing the crank pin 18 as well as the main shaft 14 is arranged on the slide 32.

Referring to FIG. 1, the processing head 34 is arranged on the slides 32 so as to be movable in the horizontal direction. In order to adjust the position, screw spindles 36 are provided, on which the electric motor 38 is operated. Instead of the electric motors and other electric motors used in the finishing machine of the present invention, a controllable and replaceable cutting motor or step motor can be used, and as a result, it is ensured to adjust the moving parts quickly and accurately. . Although not shown in detail in the drawings, a position display device in the form of a linear display device operating with a rotating display device or a moving part coupled with a motor shaft is arranged in each of the drive motors.

The processing head 34 has a first head component 40 which works together with the slide 32, the head component 40 being configured to be fixed, and parallel to and perpendicular to the crankshaft by the configuration. It is possible to change the position, and therefore, in the description and claims, it is briefly described as a fixed head configuration. The rotatable second head portion 42 is supported by the fixed head portion 40. The above configuration of the open position is shown in solid lines in FIG. 1, and the configuration for the closed position is shown in dashed lines.

Referring to the following description and drawings, the head components 40 and 42 are distinguished from comparable components, and the components are shown with the basic symbols "A" and "B" for differentiation. Are shown without adding A and B, and the symbols A and B are applied to the components of the head components 40 and 42.

The head components 40, 42 each have a frame portion 44, the frame portion 44 forming frame plates 46, 48, which are tightly coupled by bolts 50. . The frame plates each have a support ring portion 52 which extends beyond 180 °, and the support ring portion has a guide ring 54 located outward in the radial direction (see FIGS. 3 and 4).

Referring to FIG. 4, upper and lower motion rings 56 and 58 are firmly inserted into the front surface of the support ring 52, and upper and lower guide shoes of which the motion rings 56 and 58 are fixed. Supported on the swivel 60 by means of (62, 64), the guide shoes are provided with two movement rings (956, 58) from the support (66, 68), each of which is fixed from the inside or the outside to the top. Have According to the above configuration, the sphere and the protruding sides are supported in the axial direction and the radial direction of the support ring 52 on the movement ring.

1 and 3, the guide ring 54 is configured in the support ring 52, and the guide ring 54 with teeth is in contact with the drive gear 70, and the guide ring 54 on the chain 72 It is driven by this drive motor 74.

On the inner surface of the support ring 52 each support ring 52 supports the upper press body 76 radially inwardly, which support ring is only schematically shown in FIG. 1 but FIG. 3 and FIG. It is shown exactly at 4.

Each press body 76 has a head 78, which head is made of Vulkollan or a material with equivalent shape stability but slight elasticity. The front face 80 of the head 78 is selected according to the reference diameter of the workpiece to be machined.

The head 78 is arranged on the head support 82, the head support 82 is mounted on the rod 84 of the hollow structure on the side. The rod passes through a radial opening 86 formed in the mounting frame 88. The opening 86 has a counter opening 90 at the radially outer end, and an arm portion 92 supported by the rod 84 moves in the counter opening. The arm portion 92 supports the cam driven roller 94 and is connected to the adjustment ring 100 through a cam ring portion 96 extending in a size of 45 ° or more, and the adjustment ring 100 is It is connected to the guide shoe 62 fixed to the upper through the screw 102 (see Fig. 4), the guide shoe 62 is connected to the frame plate 46 on the side via the screw (104).

Referring to FIG. 3, the adjustment ring 100 has an angular scale 106.

1 and 4, the rod 84 is guided through a sliding bearing liner 108 inserted into the opening 86, and is arranged radially outwardly and configured at the head support 82. 80 is supported on mounting frame 88 through dish springs 110. The entire structure of the pressure support, the rod 84 and the arm portion 92 is fixed together through the bolt 112, through which the bolt 112 passes.

In the embodiment shown in Figs. 1-3, two pressing bodies 76 on the mounting frame 88 are arranged at about 90 degrees with respect to each other. The working band 114 is guided on both pressing bodies 76, the working band 114 is tensioned by the storage roller 116, and on the end of the mounting frame 88 shown at the top of FIG. The processing band 114 is fixed on the fixing part 118, the processing band 114 is wound on the winding roller 120, the processing band (on the end of the mounting frame 88 shown in the lower part of FIG. 114 is mounted on another fixture 122.

The working band 114 moves at an angle of about 20 ° to 30 ° with respect to the front face 80 of the head 78, and moves at about the same angle from the rear pressing body 76 with respect to the rotational direction. In order to exercise, the positions of the fixing parts 118 and 122 are selected.

In order to form a separation or contacting geometry with respect to the front or rear pressing body, a roller unit 124 is arranged between the pressing bodies on both sides, and the roller unit is divided into three rotary rollers 126, 128, 130. Each roller unit is arranged at the rear of the circle 132 passing through the front surface 80 of both pressing bodies 76.

After removing the screws not shown in the drawing, the mounting frame 88 may be separated by the supporting bolts 134 of the support ring 52 together with the components supported by the mounting frame. By this method, the working band 114 can be easily replaced after it is completely exhausted. In addition, complete units with various combinations of pressurized bodies and processing heads can be prepared for rapid replacement.

Thus, in order to reliably rotate the head component to the fixed state, the support ring portion 528 included in the rotatable head component 42 has a restraining device 136 shown in detail in FIG. The restraining lever 138 restrains the restraining device, and the restraining lever 138 is configured as a rotating lever and is received in the recess 140 of the head structure 42. The restraining lever 138 is rotatably supported by the end of the arm on the pin 142, the outer side of the end formed in the arm of the restraining lever has a protrusion 144, and the guide ring 54 having a tooth. The protrusion 144 may be inserted between two teeth, the spring 146 is fixed on the back of the restraining lever 138, by the spring in the position inserted in the guide ring 54 The restraining lever 138 is connected.

Referring to FIG. 5, the position and restraint of the pin 142 may be such that the vertical arm positioned on the left side of FIG. 5 and configured on the restraining lever 138 may protrude onto the head structure 42 by the left side of the vertical arm. The width of the lever 138 is determined. The position of the restraining lever 138 formed by the load of the spring 146 is clearly shown in dashed lines in FIG. 5.

The head portion 42 causes the restraining lever 138 to rotate clockwise with respect to the load of the spring 146 and to release the protrusion 144 of the restraining lever from the guide ring 54. 40, and as a result, the vertical arm of the restraining lever 138 is fixed through the front of the head portion 40. As shown in FIG.

According to the above configuration, the support rings 52 can be rotated without being disturbed at positions formed through the frame plates 46 and 48 and the components supported by the frame plates, and the support rings Direction and radial direction.

In order to securely engage both head components 40, 42 in the closed working position, a restraining unit 148 is provided, which is shown schematically in FIG. 1 and is 90 relative to the axis of the machining head. 6 and form an angle of 90 degrees with respect to the face of the head portion in FIG. 6.

A restraining pin 150 is included in the restraining unit 148, which is supported by the head structure 42 and has a truncated conical cross section 152 at the free end of the restraining pin. The restraining pin 150 moves in the case 154, and the restraining housing is tightly connected with the head component 40.

Referring to the cross-sectional view of FIG. 6, the restraining pin 150 has a cylindrical opening 156, and a conical cross section 158 of the drop pin 160 may move in the opening 156. The drop pin is guided movably in the casing 162 perpendicular to the axis of the restraint casing 154, and the casing 162 is supported by the restraint housing 164. The restraint housing 164 has a double acting cylinder 166 that is pneumatically operated, and the piston rod 168 of the cylinder is connected to the drop pin 160.

Referring to FIG. 6, when the restraint pin 150 insertable into the restraint casing 154 is pulled into the closed position by the opening 156 and the cross-section 158 through the conical plane operating together, the piston rod ( The restraint pin 150 may move into and out of the restraint casing 154 when the drop pin 160 moves downward when the 168 moves outward.

Optionally, the rotatable head feature 42 can be fixed on the fixed head feature 40 by an elastic load, and then against the elastic load in the closing direction from the fixed head feature 40. Pneumatic cylinders or submotors are provided to move the head features 42 downward.

Referring to FIG. 7, the components described with respect to the operation with reference to the figures are provided as modified machining heads, and the symbols of the figures are provided to the components even though the geometric sizes are different.

According to the configuration of the processing head, only support ring 52 is provided, and the support ring 52 extends larger than 180 degrees and smaller than 360 degrees. Two axially directed guide ribs 170 are provided at both front portions of the support ring 52, the guide ribs sliding in the grooves 172, and the grooves 172 are frame plates 46, respectively. 48 is provided on the inner side. The frame plates 46 and 48 have only one receiving opening 174 and, when referring to the drawing, are open to the right with respect to the sides of the frame plates 46 and 48.

In order to drive the support ring 52 on the guide ring 54, only four drive gears 70 are provided, the drive gears 70 having a rotational distance of 90 degrees, each of which drive chain wheels. 176 is connected. The chain 72 moves on several chain wheels 176 and drives an intermediate portion of the chain that moves back inside the edge of the receiving opening 174. Chain wheels 176 are provided. The chain 72 over the chain wheel 182 supported by the shaft of the drive motor 74 is guided over another freely moving chain wheel 180.

Referring to FIG. 7, the two machining units 184 have a rotational distance of about 140 ° or less so that the workpiece 12 to be machined can be moved relative to the front face 80 of the pressing body 76 from the right side. It is mounted on the support ring 52, each of the processing unit 184 is composed of a pressing body 76 having a head 78, the processing band 114 and the storage roller 116, the winding roller 120. .

Referring to the cross-sectional view of FIG. 8, the internal structure of the machining unit 184 is similar to the internal structure of FIG. 3, and the press body 76 continues to be arranged on the workpiece surface under the load of the disc springs 110.

At the same time, the arm portion 92 used in the spring position is connected with the input portion of the position display device 186. The output signal of the position display device is guided to the wireless data transmission section, and the section includes a first modem 188 and a frame-fixed modem 190 integrally formed in the processing unit 184. The modem 190 is connected to the input of the multiplexer 192, the second input of the multiplexer is connected to the modem 190 belonging to the second processing unit, according to the modification, a multiplexer for further processing units Another input of 192 may be provided.

In the above modification, it is possible to provide a position display device in the processing unit 184,

The multiplexer 192 can then be removed.

When the output portion of the multiplexer 192 is connected to the signal generation circuit 194, and the position display device 186 and the modem 188 do not digitalize the position signal, analog / digital A / D) conversion processing operation is performed by the signal generation circuit 194. The digital characteristic curve circuit 196 is controlled by the output signal of the signal generating circuit 194, and is pressed by the pressing member 76, the rod 184, the plate spring 110 and the position display device 186. The nonlinearity of the measurement system formed is compensated by the characteristic curve circuit.

The multiplexer 192, the signal generating circuit 194 and the characteristic curve circuit 196 are controlled by the output signal of the freely operating cycle display device 198, and the operating frequency of the cycle display device 198 is a support ring. It is greater than the rotational frequency of 52 (typically about 20 revolutions per minute to 160 revolutions per minute).

A storage device 200 having a writing or reading function is connected to the output of the characteristic curve circuit 196, and is addressed by the output signal of the cycle display device 198 and the output signal of the A / D converter. A signal is formed, and the output signal of the rotation display device 204 forms an input of the storage device. For example, referring to FIG. 7, the rotation display device is connected to the output side of the electric motor 38.

As a result, the digitized output signals of the various position display devices 186 depending on the respective positions of the support rings 52 are stored in the storage device. The data of the stored output signals is a complete block, which is called by a freely programmable calculation device 206, and using the data, the calculation device 206 calculates the radius and center position of the circle, The actual state can be calculated quickly taking into account the requirements for surface roughness. The circle calculated by the calculating device 206 extends, for example, to a roundness of 100%, and the circle forms a large diameter and is formed inside the instantaneous actual contour. The roundness deviation can be made smaller, so that the target contour circle calculated by the calculation device 206 can slightly project over the actual contour along with the cross section.

Depending on the calculation position with respect to the center position of the target contour circle, the calculation device 206 controls the servomotors 212 and 214 with respect to the operation units 208 and 210, and the processing head by the calculation device, the operation unit and the servomotor. Can move in the horizontal or vertical direction.

According to this embodiment, there is provided a drive device 216 during vibration acting perpendicularly to the drawing of FIG. 1 or 7 so as to move the machining head 34 by a distance of 0.5 to 5 mm perpendicular to the drawing. The working surface has a cross-shaped polishing surface as a whole.

According to another variant, a plurality of machining heads 34 are provided on the slide 32 on the bed 10 so that several crankpins or spindles can be processed simultaneously. In addition, the processing heads on the slide 32 can be adjusted vertically, and at the same time pins not arranged in the axial direction can be machined by the finishing machine.

Referring to the modification of the pressing body 76 shown in FIG. 9, a spherical portion 218 is provided in the opposite rear surface of the front surface 80, a hinge ball 220 is included in the spherical portion, and the hinge ball is provided. 220 is provided at the front end of the fixing rod 222 of the pressing body.

By this method the front face of the pressing body can be adapted on the workpiece surface according to the angle.

Referring to the press body 76 shown in FIG. 10, a spring plate 226 is arranged on the head portion 224 of the press body which is open to the workpiece and has a cup shape, taking into account the radius of the surface on which the operator is to be machined. When selecting the front face supported by the rigid pressing body, the spring plate 226 has a slightly larger radius of curvature at no load. By this method, the pressing body 76 is mounted on the workpiece surface with slight elastic deformation, and the head portion 224 with respect to the front of the head portion 224 of the pressing body to facilitate the elastic deformation of the spring plate 226. Open gaps 228 may be provided in this wall.

Referring to FIG. 11, the rotary rollers 126, 128, and 130 of the clutch unit 124 have side connections 230 and 232, respectively. The distance of the connections is selected such that the machining band 114 has a slight transverse clearance and is guided over the rotary rolls 128, 128, 130. In order to easily remove the material and machine the cross-shaped polishing structure on the workpiece surface, a machining head 34 for axial reciprocation and rotational movement is provided, so as to accurately receive the machining band in the axial direction, the rotary rollers 126, 128, 130 ) Is processed.

Referring to the embodiment of FIG. 12, each head support 82 is supported on a drive portion of the single-acting hydraulic cylinder 236 on the disc spring 234, which is supported on the mounting frame 88 at the side. And is supported on the support ring 52 together with the mounting frame. Each hydraulic cylinder 236 is connected to the compensation circuit 240 through a control valve 238, and further connected to a compensation container 242 under pressure in the compensation circuit, the compensation container is also a accumulator Is used.

The regulating valve 238 is opened and the hydraulic cylinder 236 is freely adjusted so that the press body 76 is adjusted with respect to the portion of the actual circle formed by the workpiece surface to be machined.

Sealing the control valve 238 can be blocked the adjustment of the form. The front face of the press body 76 can then always be cushioned by the dish spring 234.

When the control valve 238 is fully open or partially open during the machining operation for a special purpose, and the hydraulic oil is throttled, the automatic control action of the pressurized body face can be suppressed with respect to the partial circle where the relatively small machining operation is performed. have.

Claims (23)

With a device for supporting the workpiece and one or more machining heads 34, Rotating movement of the support frame 52 and the support ring 52 and the support ring 52 for at least one finishing means rotatably supported on the head frame 44, the head frame 44 fixed state It consists of a drive motor 74 to In a finishing machine for processing a workpiece surface of a circular cross section in which a relative motion is formed between the workpiece surface and the finishing means, Each of the finishing means is composed of a pressing body 76 and a processing band 114 guided on the pressing body, the support ring 52 is composed of a rotating extension portion greater than 180 ° and less than 360 °, the head It is guided in one or more grooves 172 configured in the frame 44, characterized in that the head frame 44 has an open structure receiving opening 174 for the workpiece 12 at one side of the head frame. Finishing machines for processing workpiece surfaces at circular ends, 2. The two heads of claim 1 wherein the support ring (52) consists of two or more support ring portions (52A, 52B) and receives the support ring portions (52A, 52B) at a given angular position of the support ring (52). Finishing machine for processing a workpiece surface of a circular cross section, characterized in that the head frame (44) is formed by the frame portions (44A, 44B). 3. The finishing machine as set forth in claim 2, wherein each support ring portion (52A, 52B) has a rotational extension portion of 180 degrees. 3. The finishing machine as set forth in claim 2, characterized in that a restraining unit (148) for both headframe portions (44A, 44B) is constructed. 2. The support ring (52) of claim 1, wherein the support ring (52) has a rotational extension of less than 360 degrees, has one or more grooves (172) formed in the headframe (44) and is circular. Receiving opening portion 174 of the open structure for the finishing machine for processing the workpiece surface of the circular cross section, characterized in that configured on one side of the head frame (44). 6. A guide ring (64) with teeth is provided in the support ring (52), and a plurality of drive gears (70) in contact with the guide ring (54) are provided in the longitudinal direction of the support rings (52). And a rotational distance of the drive gear is smaller than a rotational extension of the support ring (52). According to claim 1, wherein the support ring 52 supports at least one storage roller 116 and the winding roller 120 for the band-shaped processing band 114, the storage roller and the winding in the direction of rotation A finishing machine for processing a workpiece surface of a circular cross section, characterized in that a roller is arranged before and after one or a plurality of press bodies (76). 8. A roller unit (124) according to claim 7, wherein a roller unit (124) for guiding the working band (114) radially outwards on the front faces (80) is provided between the press members (76) in close proximity and above the press body. Finishing machine for processing the workpiece surface of the circular cross section, characterized in that the band-shaped processing band 114 is guided. 9. A circular cross section according to claim 8, characterized in that each of the storage rollers (116) and the winding rollers (120) and a roller unit (124) arranged between the storage rollers and the winding rollers are arranged on the mounting frame (88). Finishing machines for machining workpiece surfaces. 10. The finishing machine according to claim 9, characterized in that the pressing body (76) is also supported by the mounting frame (88). The cam according to claim 1, wherein the press body (76) is supported on the support ring (52) so as to be movable in a radial direction, and has a cam driven roller (94), which is coaxial with the axis of the support ring (52). A finishing machine for processing a workpiece surface of a circular cross section, characterized in that said cam driven roller (94) moves on a cam surface of a ring portion (96). 12. The workpiece surface according to claim 11, wherein the motion ring 56 is constituted by replaceable cam ring portions, and the size of the cam ring portion is equal to or larger than the size of the support ring portion. Finishing machine for 2. The finishing machine according to claim 1, characterized in that the fixed head frame (44) is movable horizontally within the construction surface of the support ring. 2. The finishing machine as set forth in claim 1, wherein the fixed head frame (44) is movable in a horizontal direction parallel to the support ring axis. 15. The finishing machine according to claim 14, wherein the driving device for reciprocating the head frame 44 fixed in the rotational direction has a stroke of 0.5 mm to 5 mm. . 2. The workpiece surface as claimed in claim 1, characterized in that a plurality of machining heads (34) forming an axial distance are constructed, and the surfaces of the workpiece (12) are machined by the machining heads. For finishing machines. 17. The method of claim 16, wherein the head frame 44, which is constructed on the moving machining head 34 and fixed in the rotational direction, is movable in the vertical direction in the configuration surface of the support ring. Finishing machine. The position indicating device according to claim 1, which is provided in the support ring (52) and operates together with the machined surface of the workpiece (12) in an area free of the press body (76) and the machined band (114). A finishing machine for machining a workpiece surface of a circular cross section, characterized in that a position indicator (186) is provided on a pressing body (76) which moves radially with respect to (110). 19. The memory device according to claim 18, wherein the memory 200 stores the output signal of the position indicating device 186 for a sufficient rotational movement of the support ring 52, through different measuring positions according to the least square error calculation method. Supply adjustment for the servomotors 212 and 214 operating on the head frame 44, which is arranged in the compensating circuit, in which an error signal is further classified between the intermediate position and the support ring shaft, and arranged in the compensation circuit. Working units 208 and 210, wherein the head frame 44 is moved so that the intermediate position of the compensating circuit is arranged on the support ring shaft, the finishing machine for processing the workpiece surface of the circular cross section. . 2. The finishing machine according to claim 1, characterized in that the drive motor (74) for pendulum motion is controlled and the angle of pendulum motion is less than half of the rotational distance of the adjacent press body. The method of claim 8, wherein the one or more rotating rollers constituting the roller unit 124 has side connections (230,232), through which the sides of the processing band 114 is positioned axially through the roller unit Finishing machine for processing workpiece surface of circular cross section. The circular cross section according to claim 1, wherein each press body (76) is supported on a hydraulic cylinder (236) above the support ring (52), and the hydraulic cylinders (236) are controlled in parallel with the flow. Finishing machines for machining workpiece surfaces. 23. The finishing machine as claimed in claim 22, wherein means for selectively restraining the hydraulic cylinder (236) is configured.