DE202009006436U1 - System for clamping workpieces - Google Patents

Abstract

System for the positionally accurate clamping of workpieces, in particular for surveying purposes, comprising at least two columns (7) and a Aufspannkorpus (1), in which at least three receptacles (6) for selectively receiving the at least two columns (7) are provided, characterized in that in the region of the receptacles (6) in each case at least one latching means (8) is arranged and that the at least two columns (7) each have at least two latching sections (9), wherein the latching means (8) and the latching sections (9) are arranged so in that the at least one latching means (8) in each case one of the receptacles (6) optionally cooperates with one of the latching sections (9) of one of the at least two columns (7) such that the column (7) moves relative to the clamping body (1) in at least two different pull-out positions can be fixed, in which a front-side end of the column (7) has different distances to the Aufspannkorpus (1).

Description

The The present invention relates to a system for positionally accurate clamping of workpieces, especially for Surveying purposes, including at least two columns and a Aufspannkorpus, in which at least three shots for selectively recording the at least two columns are provided.

such Systems for positionally accurate clamping of workpieces are known from the prior art, but often have cumbersome Handling, are not so flexible and elaborately designed.

task The present invention thus provides known systems for positionally accurate clamping of workpieces to further develop that the handle clearly for the user improved and a more flexible, cost-effective use is possible.

Is solved This object is achieved by a system according to claim 1. Claims 2 to 8 indicate advantageous developments.

According to the invention a system for positionally accurate clamping of workpieces a Aufspannkorpus in which at least three shots for optional recording of at least two columns are provided. The recordings have latching means and the columns latching sections on, wherein the latching means and the latching sections set up are that the at least one locking means each one of the shots optionally with one of the latching sections one of the at least two columns so interacts that the column relative to the Aufspannkorpus in at least two different Extending positions can be specified, in which a frontal end the column different distances has to Aufspannkorpus.

Of the Aufspannkorpus can be placed in any orientation or anchored. Preferably, however, it is positioned so that the columns can be used vertically or horizontally in the recordings. Becomes the chuck body is positioned so that the columns can be used vertically, it is preferred if the columns can be used from top to bottom and upwards from the Stand out of the chuck body. Then the pillars are so definable that you upwardly projecting frontal end in at least two different Ausziehpositionen that in such a vertical arrangement of columns different height positions represent, is definable. The same applies to a list, at the pillars can be used horizontally. Then are the pillars can be defined in at least two different pull-out positions,

Of the Aufspannkorpus thus has at least three shots that set up are, one column each take. The attached to the recording or the column locking sections or latching means are suitable, the column relative to the receiving body solvable set. At or on the pillars can do this workpieces be attached. So can various adapters or fasteners are used. The clamped workpieces can not only for surveying purposes, but also for purposes of editing be spanned in such a system.

By Such a system for positionally accurate clamping of workpieces is it possible, for example with only a few columns, which are used according to the requirements in selected images, to achieve different clamping configurations. Furthermore is it possible columns together prefabricated with different Aufspannadaptern vorzuhalten and insert these as needed in the Aufspannkorpus. by virtue of in the columns provided latching sections is also a fast and defined Configuration of a clamping situation also by unskilled personnel possible. Because by the locking means and locking sections, the columns are relatively to the Aufspannkorpus in different but predetermined Ausziehpositionen fixable. By simple counting the latching sections used is thus possibly the Aufspannsituation along with the chosen ones Clamping adapters quickly writable and reproducible.

Should a column be brought into a different extension position, so is the locking means moved out of the latching section and then the column (up or down or forward or backward) moved to another pull-out position and then the Locking means brought back into engagement with another locking portion. To remove the column the latching means is withdrawn from the latching section again and the pillar then pulled out of the Aufspannkorpus. To insert a Pillar in a recording of the Aufspannkorpus is assigned to the recording Locking means withdrawn and the pillar then inserted and moved to the desired extension position, then by engaging the locking means with the corresponding Locking section to be fixed.

Advantageously, many, preferably regularly arranged recordings are provided in the receiving body according to claim 2. Also, a plurality of columns may be provided. The ratio between images and columns can thus be less than one equal to one or greater than one. The provision of a variety of recording men enables flexible positioning of the column and thus flexible clamping of workpieces. It is particularly advantageous if the recordings are regularly arranged in Aufspannkorpus, since then a simple description of the Aufspannsituation is possible and a reproduction of the Aufspannsituation is facilitated. The provision of a plurality of columns is particularly advantageous in complex clamping situations or when preconfigured columns are to be provided with fixture adapters. Advantageously, a column may be provided in or for each receptacle.

The Preserving a few columns and / or a few shots reduces the production effort.

Favorable Way points the column according to claim 3 a gas spring, on, for the Aufspannkorpus at least one counter bearing includes. By Such a gas spring, with the anvil on Aufspannkorpus interacts, becomes the pillar according to the invention in the direction Moves out of the recording, unless it is set. however becomes the pillar just so far out of the picture that it moves with a lower one Section still remains in the recording. Thus, by simple To press on the pillar the pillar again in a further moved into the Aufspannkorpus pull-out position be spent. Will the column be there not set and let go, she moves back out of the Take out in further out of this protruding pull-out positions. This significantly facilitates the handling of the columns.

Especially It is advantageous if according to claim 4 for each Recording a handle is provided with the locking means of Recording cooperates so that by pressing the handle, the locking means brought into engagement with a latching portion of one of the at least two columns and can be moved out of the latching section. Such Handle significantly facilitates the operation of the locking means. Favorable Way, this handle is attached so that it easily actuate is while the pillar used or their pull-out position is changed. Advantageously, will This handle also attached so that it clearly a recording is assignable. This significantly facilitates the handling.

Favorable Way has according to claim 5 at least one additional recording to the locking means on a clamping device with the at least a pillar cooperate such that the column can be clamped in the receptacle is. By such a deadlock is not only a lock in extraction positions between the individual latching steps, but rather, and in particular, a more stable, more defined and firmer fixing of the columns allows even if this already determined by locking means and locking sections has been. By such an additional Deadlock leaves The accuracy of the clamping situation with simple means increase significantly. Such a clamped pillar For example, it can wobble much less. Furthermore it is also possible through such a deadlock one in terms of lateral orientation exact alignment of the column to achieve. Advantageously, clamping handles for releasing and Jamming the deadlock provided.

Prefers have the columns a substantially rectangular and substantially quadrangular Cross-section on and takes place the jamming in the direction of a diagonal the cross section of the at least one column. Essentially rectangular and substantially quadrangular here means in particular that also rounding of the edges and corners are possible and that also recesses, for example, to jamming, may be present. By such a deadlock in the direction of the diagonal, it is possible in particular, the column against two defined surfaces to press or to pull and thus to achieve a defined orientation of the column.

Favorable Ways are according to claim 6 in the area of the front end of the column means for fixing arranged by Aufspannadaptern and includes the system at least one, in particular a plurality of, at one of the recordings projecting front side of the columns releasably fixable Aufspannadaptern.

By such a means for setting Aufspannadaptern and it solvable Lockable fixture adapters will increase the flexibility of the system clearly increased. As Aufspannadapter different Types of adapters, such as clamps, support pins or screw adapters, come into question.

Favorable Way, the clamping adapter clamping or holding elements to hold a workpiece on.

Especially it is preferred to carry out the Aufspannkorpus as a worktable, the having a base and a horizontal table top, wherein the top of the table top forms a clamping surface and the table top at least three aligned with the recordings recesses for insertion the columns having. Advantageously, the substructure with the table top screwed.

Such a design of the Aufspannkorpus as Aufspanntisch can at low Materi alaufwand a special stability can be achieved. Using a tabletop with recesses allows not only preventing the incidence of small parts, but also attaching handles and clamping handles on the clamping surface, which can be achieved so easily. Using a substructure increases the stability and thus the accuracy of the system. Screwing the base to the table top makes it easy to achieve increased stability. By color markings or numbering optical associations between shots and handling or clamping handles can be created.

Especially it is preferred if the substructure one from perpendicular to each other standing and preferably nested plates formed Attachment structure, wherein the plates have a grid structure form. By such a lattice structure is not only the stability of the Aufspannkorpus clearly increased. Rather, you can the plates also as a stable mounting options for shooting and other components serve. The plates themselves can Parts, for example, lateral boundaries, the recordings form. An interleaving of the plates is for example by millings possible in the individual plates. A connection of the plates can for example by screwing respectively.

Especially It is advantageous if the shots in a corner of each one the grid segments of the grid structure are arranged and in particular maximum one recording is provided per grid segment. At a such arrangement can be achieved high stability.

Furthermore Is it possible, the plates and / or the recesses for jamming the columns use. So it is particularly appropriate to design the deadlock in such a way that the pillar in a corner, which is formed of two plates, pulled or pressed and thus is jammed against this.

Especially It is advantageous if the recordings are substantially rectangular and have substantially quadrangular cross-section and the latching means designed as a pin are and in the direction of a perpendicular bisector of these cross sections of the Recordings are movably mounted and the latching sections of the at least one pillar as in the direction of a perpendicular bisector of the cross section of the Extending column holes or blind holes are executed.

A such execution let yourself with high stability produce with very low production costs.

Prefers are the pillar and the Aufspannkorpus designed so that falling out of at least a pillar from the clamping surface away through the receptacle is prevented. This is special advantageous because fallen through columns otherwise very expensive would have to be removed again. Such training is unnecessary However, in the use of gas springs, the unspecified columns in interaction with the counter bearings permanently out of the recording press out and thus by itself prevent falling out of the columns.

ever After use, it may be advantageous to design the system in such a way that that several, in particular two Aufspannkorpusse, in particular with the sub-pages gewand each other, are connected. Such a clamping system can be set up to have columns of two or more sides horizontally in the recordings can be inserted. In this case, the clamping system be placed on one side. This allows a span of two Pages.

To the Generation of such a double clamping system can be two Aufspannkorpusse be connected together accordingly. Alternatively, you can Such a double clamping system even without the intermediate step the manufacture of two Aufspannkorpussen be prepared. It is also conceivable to provide shots in the same time from two sides two or optionally a column can be used. Also can the shots of each page arranged in the same grid be, but they can be offset against each other. This allows a comparatively thin execution a combination of two Aufspannkorpussen at the same time in all shots columns can be used.

One Such a double or multiple clamping system can be advantageous according to claim 8 be designed so that arranged on the two sides Facing each other in alignment. However, it can also be chosen an arrangement in which the recordings do not swear.

Of Further it is possible an execution too choose, in which in each shot a column can be admitted or in the opposite in alignment Shots are always populated only one of the aligned recording can. Latter version allows it to make the double clamping system thinner.

Further Benefits and possible embodiments are meant to be exemplary and not exhaustive of the following schematic figures are shown. Showing:

1 a three-dimensional view of a system according to the invention;

2 a side view of a system according to the invention with the column removed;

3 a view of a system according to the invention from above;

4 a view of a system according to the invention from below;

5 a section of the system seen in section through the system according to the invention along the section AA 2 ;

6 a section of the system seen in a diagonal section through the system according to the invention along the section line BB 3 ;

7 a section of the system seen in a horizontal section through the system according to the invention along the section line CC 3 ;

8th a three-dimensional representation of the system according to the invention obliquely from below;

9 a partially broken away view of the system according to the invention; and

10 a view of a double clamping system.

1 shows you as a worktable 1 trained Aufspannkorpus with a substructure 4 and a horizontal tabletop 2 , One of the surfaces of the tabletop 2 forms the clamping surface 3 , In the clamping surface 3 or the tabletop 2 are recesses 18 arranged regularly. The left half of the table top 2 is with columns 7 , Handle 12 and clamping handles 13 equipped, while such an assembly on the right side has not taken place. The recesses 18 However, here are provided with caps. The insertion of the columns 7 takes place in vertical orientation. The columns 7 are except the top left column 7 completely in the worktable 1 pushed. The top left pillar 7 is partially highlighted. To recognize, therefore, here are the rest sections 9 , The columns 7 have couplings 14 and couplings 15 , are placed on the clamping adapter.

2 shows a worktable 1 with inserted columns 7 and one above the clamping surface 3 floating column 7 , which can be used in a still free recording. To the worktable 1 around a circumferential profile is arranged that has top, side and down mounting grid. The profile thus allows the attachment of resources, such as additional attacks, further Aufspanntische 1 and or cameras.

3 shows a plan view of the previously in 1 and 2 shown clamping table 1 , Here are cut lines drawn.

4 shows a view from below. You can see plates 19 holding a lattice structure 10 form that as a fastening structure 5 serves. This grid structure 10 is part of the substructure 4 , Recognizable are recesses 18 , Handle 12 and latching means 8th as well as clamping handles 13 and recordings 6 and counter bearing 21 , The pictures 6 are formed from the recesses 18 and two plates 19 , At each of them are a locking means 8th , a counter bearing 21 and a clamping device 11 arranged. It can be seen that the clamping device 11 that with the clamping handle 13 connected, with recesses on the column 7 so interacts that the column 7 diagonally against two plates 19 pulled and so can be jammed. Furthermore, it can be seen that the plates 19 a lattice structure 10 form, with the corners of the recesses 18 are arranged in alignment and against the columns 7 through the clamping devices 11 to be pulled.

5 shows a section along the section line AA. Evident is a centrally cut column 7 with their rest sections 9 , which are designed as holes with inserts. It can also be seen as a detent 8th with a resting section 9 interacts with the pillar 7 in its extended position, which is a height position in the embodiment shown with vertically inserted columns set. On the handle shown 12 grab an eccentric below 17 on, over which the respective locking means 8th can be moved.

6 shows a diagonal section along the section line BB. It can be seen that the column 7 through the clamping device 11 diagonally against two plates 19 , of which only one is shown in section, is pressed. The clamping device 11 is with the clamping handle 13 connected so that over the clamping handle 13 a jamming of the column with the plates 19 is possible.

7 shows a horizontal section along the section line CC. Again, it can be clearly seen that the column 7 through the clamping device 11 against two plates 19 can be pressed. It can also be seen how the clamping device 11 with the grid structure 10 , here with two plates 19 , is screwed.

8th shows a three-dimensional view obliquely from below on the worktable 1 , Pillars are used in it 7 , You can see plates 19 that the lattice structure 10 build, which in turn together with other components the substructure 4 forms. Shown are with plates 19 screwed counter bearing 21 , on each of which the gas spring 20 the column used 7 rests.

9 shows a representation of the worktable 1 with an inserted column 7 in which, however, some parts are hidden. That's why inside the column 7 the gas spring 20 on the counter bearing 21 is up to recognize. The gas spring 20 engages inside at the top of the pillar 7 and is there with the pillar 7 connected. Otherwise it hangs freely in the column 7 so they when on an abutment 21 rests, a force between the upper, inner end of the column 7 and the counter bearing 21 exercise and so the pillar 7 from the recording 6 can push out, but only so far, that part of the column 7 still in recording 6 remains. Through this gas spring 20 becomes the partial pillar 7 moved out of the receptacle, in the illustrated embodiment with vertically inserted columns 7 So moved up. The pillar 7 is in a recess 18 used.

10 shows a double clamping system with two interconnected Aufspannkorpussen. The pictures 6 lie opposite each other from both sides. In the embodiment shown, the columns inserted horizontally from one side are sufficient 7 in the opposite lattice structure 10 into it, allowing the simultaneous insertion of columns in aligned opposite receptacles 6 not provided, since the columns 7 otherwise might collide. The gas springs move the columns 7 laterally from the shots 6 out, but only to the extent that the columns 7 do not fall out.

Further Modifications and embodiments, which are adapted to the respective requirement, can be passed through easily find the expert.

1

worktable

2

tabletop

3

clamping

4

substructure

5

lattice structure

6

admission

7

pillar

8th

latching means

9

detent portion

10

lattice structure

11

clamping device

12

handle

13

Klemmungshandhabe

14

clutch

15

coupling

17

eccentric

18

recess

19

plate

20

Gas spring

21

thrust bearing

Claims (8)

System for positionally accurate clamping of workpieces, in particular for surveying purposes, comprising at least two columns ( 7 ) and a chuck body ( 1 ), in which at least three images ( 6 ) for selectively accommodating the at least two columns ( 7 ) are provided, characterized in that in the region of the recordings ( 6 ) each at least one latching means ( 8th ) and that the at least two columns ( 7 ) at least two latching sections ( 9 ), wherein the latching means ( 8th ) and the latching sections ( 9 ) are arranged so that the at least one latching means ( 8th ) one of the recordings ( 6 ) optionally with one of the latching sections ( 9 ) of one of the at least two columns ( 7 ) cooperates so that the column ( 7 ) relative to the chuck body ( 1 ) can be fixed in at least two different pull-out positions, in which a front-side end of the column ( 7 ) different distances to the Aufspannkorpus ( 1 ) having. System according to claim 1, characterized in that in the Aufspannkorpus a plurality of preferably regularly arranged recordings ( 6 ) and / or a plurality of columns ( 7 ) is provided. System according to one of the preceding claims, characterized in that the columns ( 7 ) a return element, preferably a gas spring ( 20 ), and the Aufspannkorpus ( 1 ) at least one abutment ( 21 ), and the return element in cooperation with the abutment ( 21 ) the pillar ( 7 ), if this is not fixed relative to the Aufspannkorpus, in the direction of the recording ( 6 ) moved out, but only so far that the column in the receptacle ( 6 ) remains. System according to one of the preceding claims, characterized in that for each recording ( 6 ) a handle ( 12 ) is provided, wherein the handle ( 12 ) of a recording ( 6 ) with the at least one latching means ( 8th ) of the recording ( 6 ) cooperates in such a way that by pressing the hand ( 12 ) the locking means ( 8th ) in engagement with a latching portion ( 9 ) one of the at least two columns ( 7 ) and from the latching section ( 9 ) can be moved out. System according to one of the preceding claims, characterized in that at least one of the recordings ( 6 ) in addition to the latching means ( 8th ) a clamping device ( 11 ) having one of the at least two columns ( 7 ) cooperates in such a way that the column ( 7 ) is clamped in the recording. System according to one of the preceding claims, characterized in that in the region of a front side of the receptacle ( 6 ) outstanding end of the columns ( 7 ) Facilities ( 14 ) are arranged for fixing Aufspannadaptern and that there are at least one, in particular a plurality of, at the front ends of the columns ( 7 ) releasably fixable Aufspannadaptern includes. System according to one of the preceding claims, characterized in that several, in particular two, Aufspannkorpusse ( 1 ), in particular with the undersides to each other, are connected and can be set up so that the columns ( 7 ) horizontally and optionally from both sides in the recordings ( 6 ) can be used. System according to claim 7, characterized in that all recordings ( 6 ) simultaneously with columns ( 7 ) can be fitted.