WO2019086079A1

WO2019086079A1 - Clamping bolt, table top and tensioning system

Info

Publication number: WO2019086079A1
Application number: PCT/DE2018/100888
Authority: WO
Inventors: Joachim Müller
Original assignee: Mueller Joachim
Priority date: 2017-10-31
Filing date: 2018-10-31
Publication date: 2019-05-09
Also published as: DE102018126997A1; DE112018005709A5

Abstract

The invention relates to a clamping bolt (1) for a tensioning system, in particular for a welding and mounting table, wherein the clamping bolt (1) has a cylindrical basic shape at least in some regions. Ribs (16) formed by recesses (4) are formed on one end and distributed uniformly over the circumference, and the clamping bolt (1) comprises a thread (2) at least in some regions in the longitudinal extension. The table top (20) for a tensioning system, in particular for a welding and mounting table, wherein the table top (20) of the welding and mounting table has at least one opening (10). Flange-like projections (7) are provided in the circumferential direction in the opening (10) on the surface thereof in an uniformly distributed manner over the circumference. The invention also relates to a tensioning system using clamping bolts (1) and table tops (11, 12, 20), in particular for a welding and mounting table, wherein the clamping bolts (1) can be inserted and locked into an opening (10) in the table top (11, 12, 20) of the welding and mounting table. The angled ribs (16) formed by recesses (4) are formed on the clamping bolts (1) and flange-like projections (7) are formed in a complementary manner in the openings (10) of the table top (11, 12, 20). The angled ribs (16) formed by recesses (4) can be guided around the flange-like projections (7).

Description

Clamping bolt, table top and clamping system

Clamping bolts, especially for welding and assembly tables, as well as for clamping and positioning of various components are known in various designs. There are systems with groove stones between ribs and those with circular

Clamping bolts in holes of solid table tops. Many bolts are inside with more or less expensive

Mechanics and moving components, such as balls equipped.

These bolts are often quite expensive to produce. You can also easily pollute. This can adversely affect the function. In addition, clamping balls of the bolts induce point loads in the support media in the force-transmitting state.

The object of the invention is to provide clamping bolts and table tops for a clamping system and a clamping system, in particular for a welding and assembly table, which permanently functional remain functional and cost

are functional and beyond functional

Handling to allow the use of even low-skilled personnel. In addition, the clamping and pressing forces should be distributed over larger areas and the clamping bolts simply one-handed tensioned and released.

With the invention is achieved in the specified application that a clamping bolt for a clamping system is created in particular for a welding and assembly table, wherein the

Clamping bolts at least partially have a cylindrical basic shape and that at one end over the circumference evenly distributed through recesses formed angled webs are present. The webs allow attachment or jamming to corresponding surfaces and / or edges. In addition, the clamping bolt comprises in Längser extension at least

partially threaded. This thread is preferably to enable the use of standard components Right-hand thread, depending on the need and specific

Use case also a left-hand thread is not excluded.

The invention further comprises a table top for a

Clamping system especially for a welding and assembly table, wherein the table top of the welding and assembly table has at least one opening and in the opening on the surface over the circumference uniformly distributed in sections

flange-like projections in Umfangsr direction are present. The openings are preferably through openings through the

Tabletop. The longitudinal extension of the openings is

preferably at right angles or perpendicular to the table surface. The flange-like projections allow a Hintergr eifen or encompassing. Due to the even distribution of

flange supernatants will also be uniform

Power distribution achieved. The flange-like projections are areas where the cross-section of the opening is reduced. If the opening is cylindrical, have the flange

Supernatants from a smaller diameter or has the opening in the area of the flange-like projections one

smaller diameter.

The flange-like projections can be produced for example by milling or by laser or other suitable methods in the opening in the respective table top. For this purpose, the opening is formed for example by concentric holes with different diameters, wherein the

Diameter of the holes is reduced towards the bottom. In the resulting circumferential flange-like projection in the opening can be demanded on the circumference uniformly distributed sections flange-like

Work out the supernatants.

The tensioning system according to the invention using

Clamping bolts and table tops especially for a welding and assembly table provides that the clamping bolts in a

Opening in the table top of the welding and assembly table can be used and locked, with recesses formed angled ridges on the clamping bolt and flange-like projections in openings of the table top

are formed complementary to each other, wherein by

Recesses formed angled webs around the flange-like projections are feasible and thus this hintergr sifen and the resulting forces are reliably absorbed and optimally distributed during bracing.

It is further achieved that the clamping bolts always

stand perpendicular to the table surface or table top.

Advantageous embodiments of the clamping bolt are in the

Claims 2 to 7, the table top in claims 9 and 11 and the clamping system in claims 13 to 16 shown.

With the further development, in that the web extends in the longitudinal direction and in the circumferential direction, the webs on the one hand form defined stops for a rotary movement and on the other hand rectangular webs are created by the webs in the circumferential direction on the other hand for longitudinal extension Edition and

Allow power absorption. Oblique webs or web portions, which thus extend in the longitudinal direction and in Umfangsr direction are also provided. Depending on the application, these may suffice, depending on the inclination

especially with changing load can lead to a relaxation.

The clamping bolts undergo a development in that the web sections has different widths, which depending on the application, appropriate forces can be intercepted and thus the stability according to the requirements

is adjusted. By the clamping bolt on the external thread comprises a clamping nut which has at least partially knurling and / or hexagon and / or any external polygon, the clamping operations can be personalized and easy carry out. By knurling, the hexagon or any external polygon, such as a square or a star grip allows any force required to be transmitted to the clamping nut and thus tension.

Furthermore, the angled webs and the thread have the same main working direction. Due to the cylindrical shape, the clamping bolts can be rotated accordingly in the respective application. According to the purpose of a clamping is provided, wherein the clamping nut is rotated. The angled webs prevent further rotation or

Unscrewing from a working position of the lock, which would be done by the friction of the thread between the clamping nut and clamping bolt, however, if the

Main working directions of the thread and the angled webs would be in opposite directions. By the webs and the thread have the same main working direction, the clamping nut exerts depending on the thread by turning clockwise or counter-clockwise, so when clamping, a certain Mitdr ehe effect on the clamping bolt, which leads to a certain extent to a self-assurance.

In the training that is the angled webs

opposite end of the clamping bolt in diameter

reduced, thus components and clamping nut can be easier on the clamping bolt according to arrangements or plugging, without causing a deterioration in use.

By the reduced diameter end of the clamping bolt knurling and / or a hexagon and / or any inner and / or outer polygon, for example as an Allen, Torx, square or star grip, the clamping bolt can be rotated directly by hand or by means of a tool , arrange or fix and release. The thread is added

but not damaged in the intended use.

In the development of the table top, the flange-like projections are in a plane, Thus, on the one hand a simple arrangements of the clamping bolt and on the other hand an optimal Power distribution achieved during clamping.

The table top comprises at least partially multi-part and at least one upper table top and lower table top. The table top is stacked in this embodiment of the invention and may include next to the upper and lower table top further intermediate table tops. The opening is in the individual tabletops respectively

congruent. Thus, this opening across the individual tabletops across a through hole. Furthermore, the flange-like projections are present in the opening in one of the tabletops. On the one hand, existing tables can be opened by appropriate extension of the table tops

convert. Furthermore, the table tops can be manufactured or made according to the requirements by the flange-like projections are present in an upper or a lower or another, intermediate tabletop. Come clamping bolts with different diameters can be used both in the upper and in the lower and the lower table top

provide flange-like projections, wherein preferably the diameter or size of the opening in the upper

Table top is larger than the size of the opening in the or the lower or respectively underlying table tops.

In a further development, the upper table top and the lower table top and / or intermediate tabletops are spaced. As a result, a light and stable arrangement of the table top and the welding and assembly table is achieved.

In a development of the clamping system form the

Angled webs on the clamping bolt and the flange-like projections in the openings of the table top a

Baj onettver schluss. This will be a reliable one

Connection system achieved in which the forces are absorbed evenly and lead to a reliable backup The Baj onettver schluss and the thread the same

Own main working direction, the clamping nut exerts depending on the type of thread by turning clockwise or counterclockwise, so when clamping, a certain Mitdr ehe effect on the clamping bolt, which in a sense Baj onettver circuit to a

Self-closing leads.

With continuing education, each two, three and more

Angled webs on the clamping bolt and flange

Supernatants are present in the openings of the table top, it is achieved that the forces are optimally distributed and an ordered system of force triangles is formed.

By the recesses in the clamping bolt in all geometric directions greater than the flange-like projections in the

Openings of the tabletop, it is achieved that on the one hand the placement and intended use of

Clamping bolt due to sufficient tolerances easy and independent of contamination is possible and yet a distortion of the clamping bolt and a reliable and secure fit of the clamping bolt is guaranteed.

Several embodiments of the invention are in the

Drawings are shown below and become closer

described. Show it:

1 shows the body of a clamping bolt in side view, Fig. 2 shows a clamping nut for the clamping bolt in the

Side view,

Fig. 3 is an opening in a table top with three

flange supernatants in plan view.

Fig. 4 is a perspective view of a section of a possible combination of a table top with a cylindrical bore in an upper table top and flange-like

Projections in an opening in a second table top under the upper table top,

Fig. 5 is a perspective view of a table top with a cylindrical bore in an upper table top and flange supernatants in an opening in a second table top under the upper table top with spacers between the table tops.

Fig. 6, the table top of Fig. 5 with a via a

Clamping bolt strained part of an accessory.

7 is a perspective sectional view through the

Clamping system with clamping bolt and table top,

Fig. 8 is a perspective view of a tabletop with an opening and with existing in the opening flange projections and

Fig. 9 is a perspective view of a portion of a possible combination of a table top with a cylindrical bore as an opening in an upper, intermediate

Table top and lower table top and flange-like

Overhangs in an opening in a lower table top.

The clamping bolt 1 according to the invention is, as in FIG. 1

represented, cylindrically shaped in the majority of its Längser extension. A part of the clamping bolt 1 is provided with a thread 2. Advantageously and as intended, the clamping bolt 1 is provided at its lower end with angled or hook-shaped recesses 4, through which

Angled webs 16 are formed, which are shaped approximately analogous to a bayonet closure. The web 16 extends in the longitudinal direction and in Umfangsr direction. In this case, the web has 16 sections different widths, wherein in the longitudinal direction, the width of the web 16 is less than in Umfangsr direction.

The upper end as a clamping bolt shell 3 as the the

Angled webs (14) opposite end of the

Tensioning bolt (1) is shaped as a knurling 6 and has a smaller diameter than the remaining part of the

Clamping bolt 1. The area with the knurling 6 is adjoined by the area with the thread 2 as external thread.

On the external thread can be nuts 5, as shown in Figure 2, unscrew. The clamping nut 5 comprises according to the specific embodiment of Figure 2 with an area a knurling 6. The angled webs 16 and the thread 2 have the same main working direction

The example knurling, as shown in Fig. 1 area can also be used as external polygon or analogous to the contours of handles, such. B. star grip, be formed. Also, for example, a hexagon socket, corresponding to a head of a Allen screw or a polygonal socket, according to a head of a Torxschraube suitable.

In a table top 20 according to the invention, as shown in Figures 3 to 9, circular cylindrical openings 10 are present. These are according to the embodiments in Figure 4 to 6 both in an upper table top 11, as in Figure 9 optionally intervening table top IIa as well as in a lower table top 12 available. As shown in Figures 5 and 6, the upper table top 11 and the lower table top 12 can also be arranged at a distance. The

Figures 7 and 8 each show a lower table top 12, 20. In the openings 10 in the lower table top 12 are, as in Figures 3 to 9, in Umfangsr direction partially

arranged flange-like projections 7, which reduce the cross-section or the diameter of the openings in this respective area. These flange-like projections 7 can also be designated or executed as cloverleaf-shaped contours 7. The flange-like projections 7 are here in a plane

arranged. The angled webs 16 and flange

Supernatants 7 or clover-shaped contours 7 may be present several times on the clamping bolt 1 and on the openings 10 of the table top 11, IIa, 12, 20. The flange-like protrusions 7 or cloverleaf-shaped contours 7 and the angled webs 16 or the webs 16 in hook shape can in their geometry and the number of angled webs 16 and flange

Supernatants 7 or clover-shaped contours 7 vary. For example, in the case of small clamping bolt diameters, a variant in the geometry of a two-leaf clover or a variant with two opposing flange-like ones is also possible

Supernatants 7 and correspondingly two angled webs 16 useful.

The flange-like projections 7 may also be present in the upper table top 11 or intermediate tabletop IIa, 20. If the flange-like projections 7 are present in more than one of the table tops 11, IIa, 12, 20, these are arranged congruently one above the other in the opening 10. Depending on the arrangement of the flange-like projections 7 in the

Table tops 11, IIa, 12, 20 extend the the

Recesses 4 in the longitudinal direction and the webs 16 in

Longitudinal direction over the respective distances or Er extensions of the flange-like projections 7 in the opening 10th

The innovation consists in the interaction of the geometries of the

Openings 10 in the form of holes in the table top 11, IIa, 12, 20 or parts of the table top 11, IIa, 12, 20 and

Geometry of the clamping bolt 1, but especially the expiration of the clamping operation of clamping bolt 1. By inserting the clamping bolt 1 in the table top 20 with the at least upper and lower table top 11, 12, the recesses 4 as

Gaps of the corresponding angled webs 16 initially in the longitudinal direction over or between the flange

Supernatants 7 pushed or guided. Subsequently, a turning of the clamping bolt 1 in the main working direction of the thread 2 by the flange-like projections 7 in and behind the recesses 4 as spaces of the corresponding

Angled webs 16 in Umfangsr direction up to the

Longitudinal region of the angled webs 16 pushed or guided. The flange-like projections 7 and the corresponding angled webs 16 form or act as

Baj onettver schluss. For a reliable fixing of the bolt in the table top 12, 20 is achieved. A clamping means of the clamping nut 5 in the longitudinal direction of the clamping bolt 1 is now possible. Equivalent but opposite, the system works when loosening the clamping bolt 1. The flange-like projections 7 and the corresponding angled webs 16, the Baj onettver circuit and the thread 2 have the same main working direction. By the intertwining of the geometries of the clamping bolt 1 in the geometry of the openings 10 as Tischplattenausnehmung the prerequisite for proper clamping of the

Clamping bolt 1 with the table top 11, IIa, 12, 20 and the

Accessory 14 on the upper table top 11, 20 reached.

The recesses 4 in the clamping bolt 1 are greater in all geometric directions than the inwardly projecting flange projections 7 or the cloverleaf-shaped contour 7 in the

Holes of the table top 11, IIa, 12, 20. The dimensionally accurate

Positioning of the clamping bolt 1 is secured by the cylindrical part of the recesses of the table tops.

Advantageously, the flange-like projections 7 or clover-shaped contours 7 are approximately in the form of a three-leaf clover, as shown by way of example in FIG. 3,

executed. This creates an ordered system of

Force triangles and thus a statically determined system. The forces are optimally distributed. The clamping bolt 1 is always perpendicular to the table surface 11, IIa, 12, 20. A clamping bolt 1, as shown in Figure 6, in the intended opening 10 as a hole in the table top 11, 12, 20, for example, a clamping and welding table , inserted vertically downwards with one hand. The clamping bolt 1 is manually turned a little bit to the right and left until it is preferably in full predetermined or intended

Length in the opening 10 as a bore of the table top 11, 12, 20 or optionally the bore 15 of accessories 14 is immersed. Thereafter, it is rotated by means of the knurling 6 shown as an example on the clamping bolt upper part 3 to the tactile stop to the right. In this position, the clamping bolt 1 can then be tightened by the clockwise rotation 18 of the clamping nut 5 on the clamping bolt 1. While the clamping nut 5 presses against the surface of the table top 11, 20 or an accessory, the tension angled webs 16 of the clamping bolt 1 against the underside of the flange projections 7 or clover-shaped contours 7 of the lower table top 12 or the table top 20. Another advantageous role plays here during the tightening of the bolt, the friction of the thread 2 of the clamping bolt and the clamping nut thread 17. Durch Turning clockwise 18, so clamping, the clamping nut 5 exerts a certain Mitdr eheffekt on the body of the clamping bolt 1 from. This ensures that the

Clamping bolt 1 always ideally locked. It does not matter whether on the table at the same time an accessory is stretched or not.

The clamping bolt 1 according to the invention, in contrast to

known tensioners for welding and assembly tables with just one hand cocked and relaxed. That's a considerable advantage. Thus, the second hand for other activities, for example, to hold an accessory, free.

To release the clamping bolt 1, the process is carried out in reverse order. The clamping nut 5 is to turn to the left 19. Advantageously, about one revolution. Thereafter, the clamping bolt 1 is manually rotated to the left to the tactile stop. Now the clamping bolt 1 can be pulled up and removed very easily.

Compilation of the reference numerals

1 - Clamping bolt

2 - thread

3 - Clamping bolt upper part

4 - recess

5 - clamping nut

6 - knurling, hexagon

7 - flange-like projection, clover-shaped contour

8 - large diameter in the space of the flange

About estate, large diameter of the cloverleaf contour

9 - small diameter of the flange supernatant

10 - opening

11 - upper table top, upper part of a table top

IIa - intermediate tabletop

12 - lower table top, lower part of a table top

13 - Spacer between lower and upper table top

14 - Section of an accessory, for example a stop bracket

15 - cylindrical bore in this accessory

16 - bridge, angled bridge

17 - Clamping nut thread

18 - rotating clamping movement of the clamping nut

19 - rotating release movement of the clamping nut

20 - table top

Claims

claims

1. clamping bolt (1) for a clamping system, in particular for a welding and assembly table,

characterized,

that the clamping bolt (1) at least partially a

has cylindrical basic shape, wherein at one end over the circumference uniformly distributed by recesses (4) formed angled webs (16) are present and that the clamping bolt (1) in Längser extension at least partially includes a thread (2).

2. Clamping bolt according to claim 1,

characterized,

that the web (16) in the longitudinal direction and / or in

Circumferential direction extends.

3. Clamping bolt according to one of the preceding claims, d a d u c h e c e n e c e n e,

that the web (16) sections different widths

owns.

4. Clamping bolt according to one of the preceding claims, d a d u c h e c e n e c e n e,

that the clamping bolt (1) on the thread (2) comprises a clamping nut (5) which at least partially has a knurling (6) and / or hexagon (6) and / or any external polygon.

5. Clamping bolt according to one of the preceding claims, characterized in that

that the angled webs (16) and the thread (2) have the same main working direction.

6. Clamping bolt according to one of the preceding claims, d a d u c h e c e n e c e n e,

that the angled webs (14) opposite end of the clamping bolt (1) as a clamping bolt upper part (3) in diameter is reduced

7. Clamping bolt according to claim 6,

characterized,

that the clamping bolt upper part (3) comprises a knurling (6) and / or a hexagon (6) and / or any inner and / or outer polygon.

8. Table top (20) for a clamping system, in particular for a welding and assembly table

characterized,

that the table top (20) of the welding and assembly table has at least one opening (10), in the opening (10) on the surface over the circumference uniformly distributed sections flange-like projections (7) are provided in Umfangsr direction.

9. table top (20) according to claim 8,

characterized,

that the flange-like projections (7) lie in one plane.

10. table top (20) according to any one of claims 8 and 9,

characterized,

the table top (20) is at least partially multi-parted and comprises at least one upper table top (11) and one lower table top (12) and the flange-like projections (7) are present in the opening in at least one of the table tops (11, 12).

11. table top (20) according to claim 10,

characterized,

in that the upper table top (11) and the lower table top (12) and / or intermediate tabletops (IIa) are spaced apart.

12. clamping system using clamping bolts (1) and

Table tops (11, 12, 20) in particular for a welding and assembly table, characterized,

that the clamping bolts (1) in an opening (10) in the

Table top (11, 12, 20) of the welding and assembly table can be used and locked, wherein by recesses (4) formed angled webs (16) on the clamping bolt (1) and flange-like projections (7) in openings (10) of the tabletop ( 11, 12, 20) are complementary to each other, wherein the recesses (4) formed by angled webs (16) to the flange-like projections (7) are feasible.

13. A clamping system according to claim 12,

characterized,

that the angled webs (16) on the clamping bolt (1) and the flange-like projections (7) in the openings (10) of the table top (11, IIa, 12, 20) form a Baj onettver circuit.

14. Tensioning system according to one of claims 12 and 13,

characterized,

that the Baj onettver final and the thread (2) have the same main working direction.

15. Tensioning system according to one of claims 11 to 14,

characterized,

that in each case two, three and more angled webs (16) on the clamping bolt (1) and flange-like projections (7) in the

Openings (10) of the table top (11, IIa, 12, 20) are present.

16. Tensioning system according to one of claims 12 to 15,

characterized,

that the recesses (4) in the clamping bolt (1) in all

geometric directions larger than the flange

Supernatants (7) in the openings (1) of the table top (11, IIa, 12, 20).