SK285658B6 - Workpiece clamping table - Google Patents

Abstract

A workpiece clamping table is configured so that it can be CNC controlled horizontally to the peripheral automation devices. Workpiece clamping table is configured as a complete and compact construction unit with a magnetic supporting ring (8) as its core piece. Said magnetic supporting ring (8) has a magnetic clamping device which can be supported, repositioned and braced, and a device for adjusting angle and position. These combination enables the workpiece clamping plate (1) to be lifted, positioned at any angle, placed in the desired rotative or planar position, lowered down and braced, with the workpieces on it.

Description

Technical field

The invention relates to a workpiece clamping table according to the upper concept of claim 1, which is used for receiving workpieces or for further processing thereof, and in particular can also be used in a sliding line for assembling / disassembling components such as tools, machines or their workpieces. components.

BACKGROUND OF THE INVENTION

Workpiece clamping tables are generally known in the art and are designed according to the region in which the workpieces are used. for what purpose they are intended.

The known clamping tables have the disadvantage that they can only be used for special processing, but it is almost impossible to associate or position them to edge devices.

SUMMARY OF THE INVENTION

It is therefore an object of the present invention to provide such a clamping table which can be angularly adjusted and can also be used in automated devices so that it can be run exactly as required by certain CNC guidelines, to the edge workpieces located around the clamping table . The short cyclic infeed movements of the automated devices are thus to be minimized and their accuracy should be optimized, furthermore the reduction of assembly and disassembly time as well as the reduction of manual assembly / disassembly shots.

According to the invention, this object is solved by the knowledge according to claim 1.

Particular modifications and advantageous solutions of the invention are presented in the subclaims.

According to the invention, the clamping table is arranged such that it can be arranged vertically and at a multiple angle to the edge automated devices in coordination with the automated CNC device.

This is done by the magnetic and mechanical, lifting, propulsion and tensile forces acting inside the clamping table. Workpiece receiving plate to which they are clamped processed / assembled or mounted. dismantled assemblies / workpieces are adjusted accordingly. This workpiece receiving plate is a replaceable pallet which can be transported or removed. The components / workpieces fastened to the receiving table of the clamping table are further processed and can be brought back to the clamping table without having to convert these components in the meantime.

According to the invention, the clamping table is designed as a complete and compact structure, the core of which is a magnetically fastening table having a magnetically opposed, positional and switchable clamping device, as well as a device by which the angle and adjustability can be varied. With this combination, the workpiece receiving plate, on which the components / workpieces are to be lifted, angled, rotated and planar, can be adjusted, lowered and clamped.

At the same time, the clamping table is designed such that it can be completely replaceable inserted into different machine-sized covers of the same size or into the basic openings which are in the floor or ceiling of the assembly hall. This compact assembly fits onto the horizontally extending seating strip into the corresponding base holes and is fixed therein horizontally against the cover wall / base hole wall under the action of the spindle pressure.

According to the invention, the magnetically fastening circuit is designed to serve as a support for retaining the clamping device as well as for engaging the angularly variable and adjustable devices that are integrated in the clamping assembly, and at the same time has elements for adjusting and positioning the entire fixing table .

The invention also allows the entire fastening table to be raised or lowered by a hydraulic device.

According to the invention, the magnetically supporting and tensioning clamping device consists of a base rotor plate, a support circuit and a centering plate which is fixed to the clamping table plate and is operatively connected above the level of the adjusting spindle to the support circuit and the ball head of the support spindle. The magnetically fastening circuit can be opened in this integrated, angularly and positionally adjustable device and can have a lifting, driving and clamping magnet for fastening the clamping device.

According to the invention, the angular and positional arrangement is arranged directly in the support circuit of the clamping device and consists of an assembled ball support spindle head and a plurality, mostly three level adjustable spindles, which can be supported in an intermediate ring and displaced above the drive units.

Above the hydraulic-mechanical lifting system there is not only a magnetically fastening circuit, but also a ball support spindle head of the angular and positional arrangement, ensuring that the workpieces to be machined, as well as the assembled / disassembled components, can be moved on the workpiece receiving plate as required. positions to the automated devices rotating and planar in the x and y directions, as well as rotating about the z direction. An angular and positional device that serves for multi-angular displacement of the workpiece receiving plate is disposed within the support circuit and is effectively coupled to an intermediate circuit in which not only the thrust ball head drives, but also the drive units to the spindle adjustment level are integrated.

In the drawing we can see an example of an embodiment that explains everything in more detail.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1: an overall view of a clamping table in cross-section, FIG. 2 shows a cross-sectional view A-A of FIG. 1, FIG. 3: a cross-sectional view B-B of FIG. First

DETAILED DESCRIPTION OF THE INVENTION

The overall arrangement of the clamping table of FIG. 1 illustrates the arrangement of this device as a compact unit.

The workpiece receiving plate 1, on which the workpieces / components / assemblies to be machined will be clamped, is connected above the clamping screw unit 3 to a centering plate 2 which is centrically displaceable from the ball head of the support spindle 5 and additionally retained above the level adjustable spindle to the clamping device.

When a clamping table is used in the assembly / disassembly process, the workpiece receiving plate 1 is in the form of a light frame construction.

The clamping device consists of a base housing which forms a magnetic mounting circuit 12 in which the base plate 15 is magnetically located, all above the mounting / drive magnet 14 of the base rotor plate 15 and above the lifting / drive magnet 13 which is in the magnetically fastening circuit.

The base rotor plate is connected to a support circuit 8 in which the entire angular and positional arrangement is arranged, which consists of individual parts of the ball head of the support spindle 5, the level adjustable spindle 7, its drive 10.11 and the intermediate ring 9.

A lifting cylinder 24 is arranged below the magnetically fastening circuit 12, which is designed such that the entire clamping table can not only be raised but also lowered.

At the same time, below the magnetically fastening circuit 12, a quick-lift hydraulic cylinder 23 is arranged centrically to the lifting cylinder 24, which acts on the ball head of the support spindle 5, so that it can be quickly adjusted in height. The exact adjustment follows above the drive unit 11, which is located below the ring 9, the ring 9 being located inside the recess of the carrier ring 8.

There are also drive units 10 for level adjustment of the spindles 7, which are designed as winding ball spindles, or linear motor, highly adjustable units, which are located in the intermediate ring 9 and connected above the level of the adjustable spindle bearing 6 to the centering plate 2.

The positioning of the centering plate 2 to the ball head of the support spindle 5 is designed such that a multi-part ball pan 4 is arranged between the ball head of the support ball head 5 and the centering plate, which allows the centering plate and the workpiece receiving plate to oscillate vertically. The components / workpieces that are mounted on the workpiece receiving plate may be displaced about the vertical system axis of the clamping device.

The multi-part pulling ball pan 4 is connected to the centering plate 2 so that the centering plate 2 is supported and resting on the ball head of the support spindle 5, so that the centering plate 2 can be changed over its drives 10 in an intermediate axially acting level spindle 7 from. That is, the indicated direction -z reproduces the force vector when the axial shifting action of the level spindle 7 is decomposed into a vertical and horizontal vector.

Advantageously, the ball head of the ball head of the support spindle 5 as well as the multi-part ball pan 4 also consist of magnetic materials that oppose each other in a pole manner, so that they do not wear when the two parts slide.

The concave design of the half bearing in the centering plate 2 and the convex modification of the ball bearing head of the support spindle 5 ensure a flat bearing, which is positively reflected directly in the course of the bearing force and force applied to the angular and positionally aligned machine.

The ring 9, in which not only the spindle 7, but also the spindle of the support spindle 5, is supported and guided, is fixed in its lower position by a toothed clutch and in this corresponding lateral process bears in the recess of the support circuit 8 The connection of the carrier ring 8 to the base of the rotor plate 15 is made by a threaded connection, thereby ensuring that a strong connection is achieved and there is also the possibility of interchangeable parts.

The connections of the level spindles 7 to the centering plate 2 are made such that alignment of the centering plate 2 with the receiving plate of the workpiece 1 is quite problem-free. This is effected above the leveled spindle bearing 6 provided with each leveled spindle 7, thereby ensuring that, in an analogous manner of sliding the centering plate 2 over the domed top surface of the ball head of the support spindle 5, sliding above the leveled spindle bearing is simultaneously possible. 6 level spindle.

Advantageously, the centering plate 2 with the workpiece receiving plate 1 clamped and fastened is supported at 120 ° at an angle above the spaced-apart leveling spindles 7, thereby achieving a three-point bearing which guarantees the centering plate 2 with the workpiece receiving plate 1 to be angled large. range.

The arrangement of the level spindles 7 to the centering plate 2 is shown in FIG. 2. FIG. At the same time, it is apparent that the ball head of the support spindle 5 is formed by a multi-line profile above which the ball head of the support spindle 5 can be moved by a quick-lift hydraulic cylinder 23 to the desired zig-zag position. a winding spindle and this fine adjustment occurs above the drive unit 11.

The connection of the workpiece receiving plate 1 to the centering plate 2 is effected by the aforementioned clamping screw units.

Not only FIG. 1, but also from FIG. 2 it is apparent how the entire clamping table can be laterally and laterally mounted and adjusted. For this purpose, in the lateral guides 26, which are in the lower part of the magnetically fastening circuit 12, seating tongues 16 are arranged which spring over the tongue bundles 17. The tongue bundles are designed as metal bundles and are laterally bounded by guide plates 18 and extensions in the tongues 16 There are also displacement disc cams 19 that are effective in relation to the locating tongues 16 and are equipped with rotary drives 20. Above the rotary actuators 20, the screws of the advance disc cams 19 rotate to the bearing tongues 16 in such a way that the screws of the advance disc cams 19, the bearing tongues 16 move against the force of the tongue bundles 17 into the corresponding housing. Above the abutment tongues 16 follows the support of the entire workpiece clamping table, while above the pressure spindles 21, which can be assembled radially above their drives, the lateral locking ensures the entire workpiece clamping table. In this case, the pressure spindles 21 are supported on the machine cover lining 28 or the basic openings.

Fig. 3 reproduces the view B-B of FIG. 1 is a bottom view which represents a workpiece receiving plate formed as a clamping plate, which is manufactured as a lightweight construction and predominantly from blanks.

An essential constructional knowledge of the clamping plate is that the clamping plate is formed by transverse and longitudinal arms which are clamped by the side circuit 30.

The functional clamping table of the article is to be described in accordance with the invention, and this must be carried out as in FIG. 1 clearly represented between the magnetically fastening circuit 12 and the base of the tubular plate 15, as well as between the carrier circuit 8 and the top of the magnetically fastening circuit 12. free space. In order that FIG. 1, that between the magnetically fastening circuit 12 and the base of the tubular plate 15, as well as between the carrier circuit 8 and the upper part of the magnetically fastening circuit 12, there are so-called " free spaces which are selected such that the entire clamping device and also the workpiece receiving plate 1 fixed to the support circuit 8 and the mounting / dismounting components / workpieces mounted thereon can be moved both rotationally and planarly to the horizontal position of the clamped assemblies. The angular positioning of the assemblies occurs by angular positioning in combination with the described horizontal positioning with the angular and positional alignment device, and thus the just defined spatial points can be brought into position on the assemblies to the automated or other devices.

Since the receiving plate of the workpiece 1 is changeable to the centering plate 2 and to the clamping, angular and positional arrangement, it may happen that it is overloaded with the assembled / disassembled components / workpieces. Therefore, they are equipped with standardization points. These standardization points can be targeted to peripheral automated or other devices.

According to the invention, this embodiment has several advantages. The workpiece receiving plate may comprise a mechanically, pneumatically or hydraulically high-mounted conveyor. This conveyor then goes on the centering plate 2 of the clamping table, which is located above the level of the assembly hall, and after reaching the limit switch that limits the falling position, the workpiece receiving plate drops to the centering plate 2 and clamped with flexible screwing units. clamping table machine circuit.

Clamped components / workpieces with their standardization points come to an automated or other device whose system axes are aligned with the system axis of the workpiece table. Thus, the specified processing assembly / disassembly program can be started, whereby by moving combination of the clamping device with the angular and positionally aligned device, each spatial point can be moved in a corresponding position to the peripheral automated and other devices.

In a preferred embodiment, the apparatus may be equipped with several stationary imaging images and processing systems, whereby the actual position can be optically reached, thereby guaranteeing the exact position of the assembled and disassembled point to be processed and corrected within the manufacturing tolerance or outside removal.

Once the necessary processing / assembly / disassembly volume has been reached, the above-mentioned highly adjustable conveyors, workpiece clamping table and workpiece receiving plate 1 and clamping frame 1 and the workpiece receiving plate 1 and the workpiece receiving plate 1 and the workpiece receiving plate 1 and the workpiece receiving plate 1 and the workpiece receiving plate 1 and the clamping frame are on which the components are located.

These assembly / disassembly devices can continue with other peripheral devices elsewhere for assembly / disassembly or further processing of assembled assemblies, to which the measurement data of the previous assembly / disassembly process can be transferred to the CNC program storage of the following device.

Thereby, it is possible to combine various assembly / disassembly sequences or further processing of the assemblies located on the workpiece receiving plate.

Claims (14)

PATENT CLAIMS Workpiece clamping machine for receiving workpieces and assembled or disassembled assemblies which is rotatable, rotatable and adjustable, thereby having corresponding free spaces, characterized in that the magnetically fastening circuit (12) is designed as a support a housing for receiving a clamping device with an angular and positional arrangement, wherein the base of the rotor plate (15) is magnetically mounted within a magnetically fastening circuit (12), whose lifting drive units (13) and fastening drive units (14) can open a magnetically fastening circuit (12) for receiving the rotor base plate (15), the magnetic fastening circuit is formed such that the entire clamping table is replaceable either in the machine base cover or in the foundation openings, and includes fixing tongues (16) for tilting which are located in the lower part of the magnetically fastening o the circuit (12) and the pressure spindles (21), which are also below the magnetically fastening circuit for acting horizontally just against the base hole cover. Workpiece clamping table according to claim 1, characterized in that the clamping device comprises a base of the rotor plate (15), a support circuit (8) and a receiving plate (1) receiving the centering plate (2) which are connected above the ball head of the support spindle (5) and level with the spindle (7) with the support circuit (8). Workpiece clamping table according to claims 1 and 2, characterized in that the angular and positional arrangement is arranged inside the support circuit (8) and consists of a ball head of a support spindle (5), a level spindle (7) such as from the intermediate ring (9), the ball head of the support spindle (5) being equipped with a drive unit (11) and a level spindle (7) and a drive unit (10) which are guided in the ring (9) and arranged in order inside the annular recess circuit (8). Workpiece clamping table according to one of Claims 1 to 3, characterized in that the support circuit (8) is displaceably arranged in the base rotor plate (15), the receiving plate (1) being releasably attached to the centering plate (2) above a lifting cylinder (24) is located by the clamping screw units (3) and below the magnet mounting circuit (12) and a quick-lifting hydraulic cylinder (23) is located centrally to the lifting cylinder (24). Workpiece clamping table according to one of Claims 1 to 3, characterized in that the ball head of the support spindle (5) and the level spindle (7) are aligned above their drive units (11, 10) together, individually or in different end positions. positions, wherein the level-set spindles (7) are also designed as linear, motor-adjustable units. Workpiece clamping table according to one of claims 1 to 6 5, characterized in that the leveled spindles (7) above the leveled spindle bearing (6) and the ball head of the support spindle (5) are connected to the centering plate (2) above the multi-part ball bearing (4). Workpiece clamping table according to one of Claims 1 to 7 6, characterized in that the ball head of the support spindle (5) is mounted by a ball head in a multi-part ball pan (4), each equipped with counter-polarized magnets for sliding the ball head (5) in the ball pan (4). Workpiece clamping table according to one of Claims 1 to 8 7, characterized in that the magnetically clamping circuit (12) is provided with lifting drive units (13) and fixing drive units (14), the drive units being equipped with current-rotating linear motors. Workpiece clamping table according to one of Claims 1 to 9 8, characterized in that in the guides (26) of the magnetically fastening circuit (12), horizontally aligned abutment tongues (16) are arranged, which interact with the advance slide disc cams (19) located above the rotary drives (20). and are associated with the seating languages (16) of the pen bundle (17). Workpiece clamping table according to one of Claims 1 to 9, characterized in that pressure spindles (21) are arranged laterally below the magnetically fastening circuit (12), to which a drive (22) is associated. Workpiece clamping table according to one of Claims 1 to 8, characterized in that the entire clamping table is associated with edge processing and assembly systems. Workpiece clamping table according to one of Claims 6 to 11, characterized in that it comprises level spindles (7), preferably three, which are guided with a 120 ° division in the intermediate ring (9) and are fixed to the centering plate (2). with adjustable bearings (6). Workpiece clamping table according to one of Claims 1 to 12, characterized in that the receiving plate (1) is designed as compact or clamping, wherein its clamping arms are made of lightweight semi-finished construction, wherein the receiving plate (1) is equipped with transverse and longitudinal stiffeners (29), the ends of which are closed by a side circulating circuit (30) formed on the outer periphery of the receiving plate (1). Workpiece clamping table according to one of Claims 1 to 13, characterized in that the cover for receiving the clamping table is formed by different machine bases of different sizes or foundation openings (28) formed in the floors or ceilings of the assembly halls, the bearing tongues (16). ) and the spindles (21) are in contact with the side walls of the foundation openings (28).