EP0433788A2 - Dispositif de serrage, respectivement étau pour maintenir des pièces à usiner - Google Patents

Dispositif de serrage, respectivement étau pour maintenir des pièces à usiner Download PDF

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Publication number
EP0433788A2
EP0433788A2 EP90123493A EP90123493A EP0433788A2 EP 0433788 A2 EP0433788 A2 EP 0433788A2 EP 90123493 A EP90123493 A EP 90123493A EP 90123493 A EP90123493 A EP 90123493A EP 0433788 A2 EP0433788 A2 EP 0433788A2
Authority
EP
European Patent Office
Prior art keywords
jaw
base element
shaft
holding device
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP90123493A
Other languages
German (de)
English (en)
Other versions
EP0433788A3 (en
Inventor
Heinz Schäfer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE8914840U external-priority patent/DE8914840U1/de
Priority claimed from DE19904027465 external-priority patent/DE4027465A1/de
Application filed by Individual filed Critical Individual
Publication of EP0433788A2 publication Critical patent/EP0433788A2/fr
Publication of EP0433788A3 publication Critical patent/EP0433788A3/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B1/00—Vices
    • B25B1/20—Vices for clamping work of special profile, e.g. pipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B1/00—Vices
    • B25B1/06—Arrangements for positively actuating jaws
    • B25B1/18—Arrangements for positively actuating jaws motor driven, e.g. with fluid drive, with or without provision for manual actuation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B1/00—Vices
    • B25B1/24—Details, e.g. jaws of special shape, slideways
    • B25B1/2405—Construction of the jaws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B1/00—Vices
    • B25B1/24—Details, e.g. jaws of special shape, slideways
    • B25B1/2484—Supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B1/00—Vices
    • B25B1/24—Details, e.g. jaws of special shape, slideways
    • B25B1/2489—Slideways

Definitions

  • the invention relates to a holding device or a vice for holding workpieces by at least one jaw or clamping device, for example in an NC or CNC milling machine or the like. During processing by means of appropriate tools.
  • workpieces are processed on processing machines, for example on CNC milling machines, these workpieces must be fixed in their position during the processing time, which is usually done by means of a vice or a vice-like device.
  • This vice must be connected to a work table assigned to the tool, this connection being generally detachable so that the workpiece can be positioned as desired.
  • known holding devices are relatively high in their construction, so that they cannot be used in many cases in machine tools, in particular with a fixed distance between the work table and the tool, since they would carry the workpiece too high.
  • This high structure usually results from the fact that the actual jaws are placed on a rail guide, which in turn sits on foot rails. The baseboards are then interspersed with fasteners, which cause the holding device to be fixed on a corresponding work table.
  • Such holding devices are useful and practical when workpieces are to be machined which only have to be machined from one side or in one plane, namely in the plane facing the tool.
  • the inventor has therefore set himself the task of developing a holding device or a vice of the type mentioned above, which can be kept very low due to its construction, so that it can also be used in machine tools with a small distance between the work table and tools. Furthermore, the holding device should be very easy to use and also suitable for automation.
  • a base element forms a guide rail, groove or the like, along which at least one jaw, clamping device, counter-holder or the like is guided.
  • This T-shaped design of the base element essentially means that the entire holding device can be kept very low.
  • flank parts are formed on this jaw, with which the jaw at least partially overlaps the guide rail. From below, strips hit the flank parts, which grip under the guide rail and thus form a guide channel for the movable jaw.
  • Fastening elements are used to connect the flank parts and strips, which, when tightened, clamp the entire jaw at a predetermined position on the guide rail. In this way, an easily detachable and exact guidance of the jaw on the base element is ensured.
  • the movable jaw is also assigned a bridge which also has strips detachably attached to flank parts, which in turn engage under the guide rails.
  • This bridge is also adjustable along the base element. Locking pins inserted into the holes serve to hold the bridge at the rear. Due to the presence of a number of such bores on both sides of the base element, the basic opening or the maximum opening of the holding device between the fixed and movable jaw can be adjusted by moving the bridge accordingly together with the movable jaw. In this way, depending on the number and size of the workpieces to be machined, this holding device saves a considerable amount of time and energy.
  • the bridge preferably carries pneumatic cylinders that are operated with compressed air. Piston rods penetrate the bridge and hit the back of the movable jaw to which they are connected. When the pneumatic cylinders are pressurized, the movable jaw is automatically advanced.
  • the pneumatic cylinders should preferably be double-acting. that is, a piston is arranged within the cylinder, which separates two pressure spaces. The piston rod then connects to the piston, via which the piston is connected to the movable jaw. Depending on which chamber is pressurized, the movable jaw is advanced or retracted.
  • the contact pressure of the movable jaw can be set individually by means of pressure limiting valves or the like, for example, assigned to the pneumatic cylinders. It is also possible to regulate the working speed of the pneumatic cylinders in relation to the closing and opening of the holding device by means of corresponding electronic controllers or the like. As a result, the holding device is particularly suitable for automatic, serial machining of workpieces.
  • the bridge and the movable jaw are connected via the known threaded spindle, which then engages through a corresponding threaded hole in the bridge and meets the movable jaw from behind. In this embodiment, manual operation then takes place.
  • the entire holding device according to the invention is fixed on a work table of a processing machine depending on the desired position.
  • At least two, but preferably four, fastening elements are used for this purpose, which reach through the base element and hold sliding blocks which can be displaced in the slot grooves of the worktable.
  • the fastening elements are preferably Allen screws which are countersunk in corresponding countersunk holes. This eliminates a malfunction in the operation of the movable jaw.
  • a workpiece is to be fixed by a clamping device, the clamping device having at least one shaft which penetrates a bearing block and a stepper drive is assigned to the shaft.
  • the step drive means that the workpiece can be rotated after machining one side without having to be removed from the clamping device and readjusted again.
  • the clamping device can have a chuck with clamping jaws, a plate with clamping jaws, a disc with a mandrel or with several mandrels or with threaded bores or the like.
  • This plate mentioned by way of example, is fixed to the shaft, which preferably penetrates the bearing block horizontally, a corresponding Teflon or metal bushing being inserted into a bore to ensure that the shaft can be rotated properly.
  • a corresponding stepper drive is assigned to the shaft in order to achieve the desired rotation of the workpiece or to redefine it.
  • Such a stepper drive can be an electric stepper motor, the drive shaft of which rotates by an equally large angular step with each current pulse.
  • the number of pulses of a certain pulse sequence results in the desired angular rotation, which can be determined according to the machining surfaces of the workpiece. It is also conceivable that such a stepping drive consists of a corresponding motor, for example an electric motor with an associated stepping gear.
  • a preferred stepper drive according to the invention is, however, constructed mechanically, with many variations being conceivable here as well.
  • the shaft which penetrates the bearing block is formed on the other side of the plate mentioned by way of example as a triangle or polygon, preferably a hexagon, or is attached by appropriate fastening elements.
  • the number of edges of the triangle or polygon determine the steps of the stepper drive and the possible processing areas.
  • a hex cylinder connects to the hexagon, the diameter of which corresponds approximately to the width across flats of the hexagon.
  • cylindrical pins are assigned to the rotary cylinder in a corresponding plane and evenly spaced from one another.
  • the pins are either glued, welded, pressed into corresponding bores or screwed into corresponding threaded bores.
  • the position of the pins is designed so that they each protrude over an edge of the hexagon.
  • a corresponding rotary cylinder in connection with a hexagon thus has six pins, which are spaced apart from one another at an angle of 60 °. With a polygon, more pins are provided accordingly.
  • the pins are so long that they engage in a guide groove in the use position, in which there is a pawl.
  • This pawl is arranged in the U-shaped guide groove of a profile such that it can be rotated or tilted about an axis pin.
  • the profile with the pawl is fixed on a plate of an angle plate.
  • the angle plate itself is arranged on a guide rail, in a guide groove or the like. It can be moved back and forth transversely to the bearing block.
  • the leg of the angle plate holding the profile provided with the pawl is designed such that its upper sliding edge lies close to the surface of the hexagon which forms the width across flats.
  • the hexagon can no longer be rotated, the shaft with the holding device and thus the workpiece are fixed in this position of use.
  • the shaft with the hexagon must be rotated by a corresponding angle, preferably by 60 °.
  • the angle plate has a depression in its upper sliding edge.
  • the angle plate If the angle plate is now pushed further, it pushes the abutting pin of the rotary cylinder in front of it due to the locking position of the pawl and causes the shaft with the plate and the workpiece to rotate. This rotation can take place in that one edge of the face of the hexagon lying on the end face can pass through the depression during this rotation. After a rotation of 60 °, the depression of the sliding edge has completely undermined the hexagon, so that the subsequent surface of the hexagon now lies on the part of the sliding edge which follows the depression. In this position, the shaft is fixed again with the holding device and thus the workpiece. Since the pawl is on the one hand in the locked position and on the other hand a further rotation of the shaft is not possible, the entire angle plate is fixed in this position. The angular plate can now only be moved in the opposite direction.
  • This process can now be repeated at predetermined intervals, with the workpiece then being rotated by 60 ° each time.
  • the profile with the pawl has an elongated hole for fixing to the angle plate, which allows adjustment options in the corresponding frame.
  • the back and forth movement of the angle plate to carry out the rotary movement of the workpiece can be done manually.
  • an electrical, electromagnetic, pneumatic, hydraulic or the like drive is provided. It is conceivable that the movement-triggering impulses come via electronics that take into account the work steps specified for machining the workpiece.
  • the stepper drive is designed differently.
  • the shaft that passes through the bearing block sits on a gear that meshes with a rack.
  • This gear is free-running, which means that it rotates the axle shaft when rotating in one direction, while the axle shaft stops when rotating in the other direction.
  • the rack is preferably arranged on a slide which can be moved approximately perpendicular to the axle shaft. This movement takes place by means of a drive which can be designed pneumatically, hydraulically, electromotively or the like.
  • the carriage has two columns which cooperate with a stop element which in turn is pushed onto the shaft.
  • the stop element can be a square or polygon. In an end position, this stop element strikes one of its stop surfaces on a column, so that a further rotational movement of the shaft is avoided.
  • the columns are placed on a slide, which in turn is connected to the slide via a corresponding fastening element, such as a screw.
  • the fastening element penetrates an elongated hole, in the area of which the slide can be moved relative to the slide.
  • the bearing block with the holding device and the shaft is preferably fixed on a base element similar to the guide rail for the angle element.
  • the base element forms an approximately T-shaped cross-section, with guide rails protruding from the right and left of a baseboard.
  • the bearing block In its lower area, the bearing block has flank parts, which in turn are covered with strips on the foot side, this assignment being carried out by fastening elements. It is also conceivable that these strips are molded onto the flank parts. With the flank parts and the strips, the bearing block now grips over and under the guide rails of the base element.
  • the bearing block Since the strips or the flank part are shaped or applied in such a way that they grip tightly over and under the guide rail of the base element, the bearing block is clearly defined in this way and can only be moved back and forth along the base element.
  • the bearing block is finally fixed by means of fastening elements which penetrate through corresponding bores in the flank parts and engage in corresponding bores in the base element.
  • Fasteners can be screws, bolts or pins. It is also conceivable that the strips under the guide rails are placed on the flank parts by fastening elements in such a way that they exert a clamping effect on the guide rails by appropriately tightening the fastening elements and thus also clearly define the bearing block.
  • a bearing block which has a corresponding bore for receiving a shaft, in turn serves as a counter-holder. To ensure a smooth rotation of a shaft, this bore is designed with a Teflon bushing, metal bushing or the like.
  • a shaft which projects from a disk or the like, engages at least partially in this mounting. This disk can have a chuck jaw, one or more mandrels or the like, for example.
  • the bearing block also has flank parts, on the underside of which strips are formed, so that they form a groove with which they can reach over and under the base element or the guide rails of the base element, which ensures a clear definition. Only a shift along the base element is possible.
  • the possibility of displacement ensures that a workpiece can be clamped between the clamping device with the stepping drive and the newly assigned bearing block with the corresponding disk or the like.
  • the advantage here is that a workpiece is fixed on both sides by such a clamping mechanism and can thus be machined more powerfully, for example.
  • the workpiece to be machined does not have to be unclamped and re-clamped for a corresponding rotation.
  • the assignment of the associated bearing block to achieve the corresponding clamping effect can be done, for example, using a corresponding threaded spindle.
  • a pneumatic, electromagnetic, hydraulic or the like device for automatic closing and opening of the space between the clamping device and the counter-holder is assigned.
  • the base element, on which the entire arrangement is fixed, can easily be fixed on any work table, for example by sliding blocks or the like.
  • a holding device for example for holding workpieces during machining by CNC milling machines, has, according to FIG. 1, a base element 1 which, according to FIG. 3, is of approximately T-shaped cross section.
  • a fixed jaw 2 is assigned to this base element 1 on one end face, this jaw 2 being fastened by a fastening element 22, e.g. by a screw bolt or the like, on the base element 1 can be fixed.
  • the jaw 2 is opposed to a movable jaw 3, which is constructed in such a way that a cheek body 4 has step-shaped flank parts 5 formed on the side. These flank parts 5 project laterally beyond the base element 1 with a distance a and overlap the base element 1 with a width b according to FIG. 2.
  • the width b at the same time corresponds to the width of a guide rail 6 of the base element 1.
  • strips 7 which engage under the guide rails 6 so that a guide groove 23 is formed for the guide rail 6. These strips 7 are fastened to the flank parts 5 by means of fastening elements 8, such as screw bolts, screws or the like. If, for example, the movable jaw 3 has reached a desired end position, tightening these fastening elements 8 results in the jaw 3 being clamped on the guide rail 6.
  • the jaw 3 In cooperation with the guide rails 6, the jaw 3 thus forms a slide which is provided with an exact path of movement in the direction x by the overlapping and underlapping parts forming the guide trough 23.
  • the fixed jaw 2 is a bridge 9, which consists of a bridge body 10 and flank parts 11.
  • the flank parts 11 are also formed in a step-like manner corresponding to the flank parts 5 of the jaw 3 and also protrude beyond the base element 1 or the guide rails 6 at a distance a.
  • these flank parts 11 are in turn associated with strips 12 which engage under the guide rails 6.
  • These strips 12 are connected to the flank parts 11 by fastening elements 13 and can exert a clamping effect in interaction with the guide rail 6 when the fastening elements 13 are tightened.
  • the bridge 9 can be moved along the base element 1 and can be fixed at different, desired locations of the base element by tightening the fastening elements. This ensures that different maximum openings between the jaws 2 and 3 can be preset.
  • a further locking of the bridge 9 serve locking pins 17, which can be used in bores 24 arranged in a grid. The bridge 9 is supported against these locking pins.
  • two pneumatic cylinders 14 are attached to the bridge 9 and can be connected via connections 15 to a corresponding pressure medium source, not shown in detail.
  • Piston rods 16 lead from the pneumatic cylinders 14 and pass through the bridge 9. After the bridge 9 they meet the movable jaw 3 and are connected to this jaw 3. If the pneumatic cylinders 14 are pressurized, the movable jaw 3 is advanced or retracted.
  • connections 15 are pressurized. If the holding pressure in the pneumatic cylinders is not sufficient, the fastening elements 8 are additionally tightened after the workpiece has been fixed and the jaw 3 is thus fixed in position.
  • the holding pressure or contact pressure by the jaw 3 against a workpiece between the jaws 2 and 3 can e.g. can be controlled via a pressure relief valve or the like which is not shown in greater detail and which is assigned to the pneumatic cylinder 14.
  • automatic actuation of the holding device according to the invention is also possible, for example the working speed, i. H. the opening and closing frequency of the two jaws 2 and 3 is controlled via an electronic control part (not shown) or the like.
  • corresponding switches or changeover switches are assigned to the pneumatic cylinders 14.
  • the base element 1 is penetrated by further fastening elements 18.
  • these are hexagon socket screws, the screw heads of which are immersed in corresponding countersunk holes.
  • these fastening elements 18 have nuts 19 placed on them. It is shown in particular in FIG. 3 that these slot nuts 19 engage in corresponding slot passages 20 of a work table 21 in the position of use. In this way, the holding device according to the invention can be moved on the work table depending on the program specification, for example a CNC milling machine.
  • the essential inventive concept of the present invention can be clearly seen in particular from FIG. Due to the shape of the base element and the jaws, the entire holding device can be built very low. It is easily possible to shorten the jaws 2 and 3 by half in accordance with FIG. 2. If desired, the base element 1 could also be reduced by approximately half its thickness.
  • a further exemplary embodiment of a device for holding workpieces to be machined in particular in NC or CNC machines has the base element 1, which is constructed in accordance with FIGS. 1 and 2.
  • a bearing block 104 is fixed, which is shaped in such a way that it has flank parts 105, on the underside of which strips 106 are formed or fastened by fastening elements.
  • the flank parts 105 and the strips 106 overlap and underlap the guide rail 6, so that a firm lateral hold is ensured, but the bearing block 104 can be moved along the base element 1.
  • the bearing block 104 is finally fixed by fastening elements, not shown, such as screws or bolts, bolts or the like, which engage in corresponding threaded holes or bores in the base element 1, likewise not shown, or clamp the strips 106 by clamping around the guide rail 6.
  • the bearing block 104 has a bore 107 in the flank parts in which an axle shaft 108 is mounted.
  • a plate 109 is fixed on the axle shaft 108 of the bearing block 104 on the one hand, and on the other side of the bearing block 104 the shaft 108 has a hexagon 110 to which a rotary cylinder 112 is formed.
  • the diameter of the rotating cylinder 112 corresponds approximately to the outside diameter of the hexagon 110.
  • the rotary cylinder 112 has radially arranged and evenly spaced cylindrical pins 113. Their arrangement is designed such that they each protrude beyond the edges 129 of the hexagon 110, i.e. they each form an angle of 60 ° to one another.
  • the length of the rail 114 preferably corresponds to the width of the base element 1.
  • This rail 114 is assigned an angle plate 116, a base 139 having a T-shaped longitudinal groove 117, which is designed in size so that it engages over and under the rail 114.
  • the angle plate 116 is secured in position and can only be moved back and forth along the rail 114.
  • a plate 118 protrudes upward from the angle plate 116, the upper sliding edge 119 of which rests against a surface 120a of the hexagon 110 which forms the width across flats.
  • a depression 121 is formed in the sliding edge 119. The depression 121 is at least so deep that when the hexagon 110 rotates, the edges 129 of the hexagon 110 can dip into this depression 121.
  • a profile 122 is fixed on the plate 118 so that it comes to rest under the rotary cylinder 112.
  • this profile 122 Towards the rotary cylinder 112, this profile 122 has an approximately U-shaped guide groove 123, in which the pins 113 partially engage.
  • a pawl 124 is also rotatably inserted about an axis pin 125.
  • the entire profile 122 is fixed to the plate 118 by means of a fastening element 126, such as, for example, a screw, a screw bolt or the like, the fastening element 126 reaching through an elongated hole 127, as can be seen in FIGS. 5 and 6, and into a bore 128 , preferably engages in a threaded bore of the plate 118.
  • the elongated hole 127 allows the profile 122 to be adjusted or shifted along the plate 118 in a direction and a length which corresponds to the arrangement and the length of the elongated hole 127. This results in an adjustment with respect to the pins 113.
  • the rotary cylinder 112 with the pins 113, the angular plate 116 movable along the rail 114 and the profile 122 with the pawl 124 together form a step drive E for the plate 109.
  • the pawl has on the one hand the locking pin 140 and on the other hand a counter leg 141 . If, according to FIG. 5, the angle plate 116 is moved in the direction b, the detent 140 strokes along a pin 113a, the pawl 124 rotating about the axis pin 125 and the counter leg 141 being raised. In this way, the pawl 124 can pass under the pin 113a. The pawl 124 then falls back into the closed position. During this movement process, a part 119a of the sliding edge 119 lies at least partially against the surface 120a and ensures that the rotary cylinder 112 is fixed. The pin 113a cannot move.
  • the angle plate 116 is now moved in the y direction, the latching lug 140 of the pawl 124 abuts the pin 113a and takes it with it, since the counter-holder prevents the pawl 124 from rotating further.
  • the rotary cylinder 112 is rotated in the direction z by an angle w, in the preferred embodiment due to the arrangement of the pins 113 by 60 °.
  • the corresponding edge 129 of the hexagon 110 passes through the depression 121 in the sliding edge 119 until a surface 120b of the hexagon 110 rests again on the sliding edge 119 of the angle plate 116.
  • a further rotation of the rotary cylinder 112 is no longer possible, the plate 109 is fixed.
  • the angle plate 116 has also reached its end position.
  • the angular plate 116 is moved manually or by a pneumatic, electrohydraulic or electromagnetic drive (not shown in more detail).
  • a workpiece 130 to be machined can be held on the plate 109 by chuck jaws 131 of a chuck, for example, and machined from above. The tool is then gradually turned by 60 °. No need to unclamp and re-position the workpiece.
  • a counter-holder R1 is assigned to the tensioning device R in accordance with FIG.
  • the device R1 has a further bearing block 132 which has flank parts 133 on which strips 134 are applied on the underside.
  • the bearing block 132 overlaps and engages with its flank parts 133 and the strips 134 closely fitting the guide rails 6 of the base element 1.
  • the bearing block 132 has a bore 135 in which an axle shaft 136 is at least partially supported.
  • a holding device according to the exemplary embodiment a disk 137, is applied to the axle shaft 136, which has a mandrel 138 in the center, for example.
  • This mandrel 138 engages in an axial bore, a depression or in a grain in the workpiece 130, as a result of which it is clamped on both sides between the plate 109 and the disk 137.
  • the bearing block 132 is movably arranged.
  • the displacement takes place either manually via a threaded spindle or the like, or preferably by means of a pneumatic, hydraulic, electromagnetic or the like, not shown in more detail, corresponding to, for example, FIGS. 1 and 2, which is assigned to the bearing block 132.
  • the disk 137 rotates with the axle shaft 136.
  • the axle shaft 136 and the axle shaft 108 are held in corresponding bearings, which allow the axle shaft to rotate despite the clamped workpiece 130.
  • FIG. 7 shows a further exemplary embodiment of a stepper drive E1 in a bearing block 104a.
  • This bearing block 104a also runs through an axle shaft 108a, which is connected on the one hand to the bearing block 104a with the plate 109 and on the other hand with another disk 150.
  • This axle shaft 108a is supported on both sides near the plate 109 as well as near the disk 150 in the bearing block 104a by means of a corresponding ball bearing.
  • a nut 151 presses on the ball bearing near the plate 109, while the right-hand ball bearing is supported against a disk 152.
  • This octagon 154 is a stop element, which can also be a square, hexagon or the like.
  • a carriage 156 Under the axle shaft 108a, a carriage 156 can be seen in an opening 155 of the bearing block 104a, which in the position of use is closed by a cover, not shown, which, via a plunger 157, has a drive, not shown, for example a pneumatic, hydraulic or electromotive drive Drive is connected.
  • This carriage 156 is driven by the drive via the plunger 157 so that it also moves in the direction 1.
  • the slide 156 is fitted with a rack 158, which interacts with the gear 153.
  • This gear 153 is designed to run freely so that it is rotated by the rack 158 only in one direction, while it stops when the carriage 156 moves back in the other direction.
  • the rotational movement of the axle shaft 108a is limited by two columns 159 and 160, respectively, which project from the slide 156 on a slide 161. In each case in one end position, the octagon 154 abuts on the column 159 or 160, so that this prevents further rotation of the axle shaft 108a even in the smallest tolerances.
  • the corresponding setting of the slide 161 or the columns 159 and 160 with respect to the octagon 154 is served by an elongated hole 163 penetrated by a fastening screw 162, in the area of which the slide 161 can be moved.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)
EP19900123493 1989-12-18 1990-12-07 Holding device, especially vice for holding workpieces Withdrawn EP0433788A3 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE8914840U 1989-12-18
DE8914840U DE8914840U1 (de) 1989-12-18 1989-12-18 Haltevorrichtung bzw. Schraubstock zum Festhalten von Werkstücken
DE4013601 1990-04-27
DE4013601 1990-04-27
DE19904027465 DE4027465A1 (de) 1990-04-27 1990-08-30 Vorrichtung zum halten von zu bearbeitenden werkstuecken
DE4027465 1990-08-30

Publications (2)

Publication Number Publication Date
EP0433788A2 true EP0433788A2 (fr) 1991-06-26
EP0433788A3 EP0433788A3 (en) 1993-02-03

Family

ID=27201141

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900123493 Withdrawn EP0433788A3 (en) 1989-12-18 1990-12-07 Holding device, especially vice for holding workpieces

Country Status (1)

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EP (1) EP0433788A3 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2257933A (en) * 1991-07-22 1993-01-27 Duffield Frederick Pty Ltd A travelling vice
AU650354B2 (en) * 1991-07-22 1994-06-16 Frederick Duffield Pty Limited Travelling vice
WO1997047435A1 (fr) * 1996-06-08 1997-12-18 Eberhard Kuhnle Etau
EP1002620A1 (fr) * 1998-11-18 2000-05-24 Ditta Bacci Paolino Di Giuseppe Bacci Di Agostino Bacci Machine-outil avec tables basculantes
CN108326592A (zh) * 2018-04-18 2018-07-27 意特利（上海）科技有限公司 一种通用型自动定位夹具
CN108437290A (zh) * 2018-04-16 2018-08-24 青海大学 一种飞机光热拆解平台的碳纤维板翻转器
CN108857241A (zh) * 2018-09-28 2018-11-23 湖南合盾工程刀具有限公司 一种等离子附熔堆焊刀圈加工用夹具

Citations (2)

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Publication number Priority date Publication date Assignee Title
US1524614A (en) * 1924-05-23 1925-01-27 Gray & Co G A Planer
US1528971A (en) * 1921-06-06 1925-03-10 Leblond Mach Tool Co R K Engine lathe

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1528971A (en) * 1921-06-06 1925-03-10 Leblond Mach Tool Co R K Engine lathe
US1524614A (en) * 1924-05-23 1925-01-27 Gray & Co G A Planer

Cited By (10)

* Cited by examiner, † Cited by third party
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GB2257933A (en) * 1991-07-22 1993-01-27 Duffield Frederick Pty Ltd A travelling vice
AU650354B2 (en) * 1991-07-22 1994-06-16 Frederick Duffield Pty Limited Travelling vice
GB2257933B (en) * 1991-07-22 1994-10-12 Duffield Frederick Pty Ltd Travelling vice
WO1997047435A1 (fr) * 1996-06-08 1997-12-18 Eberhard Kuhnle Etau
EP1002620A1 (fr) * 1998-11-18 2000-05-24 Ditta Bacci Paolino Di Giuseppe Bacci Di Agostino Bacci Machine-outil avec tables basculantes
CN108437290A (zh) * 2018-04-16 2018-08-24 青海大学 一种飞机光热拆解平台的碳纤维板翻转器
CN108437290B (zh) * 2018-04-16 2023-06-30 青海大学 一种飞机光热拆解平台的碳纤维板翻转器
CN108326592A (zh) * 2018-04-18 2018-07-27 意特利（上海）科技有限公司 一种通用型自动定位夹具
CN108857241A (zh) * 2018-09-28 2018-11-23 湖南合盾工程刀具有限公司 一种等离子附熔堆焊刀圈加工用夹具
CN108857241B (zh) * 2018-09-28 2024-03-26 湖南合盾工程刀具有限公司 一种等离子附熔堆焊刀圈加工用夹具

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