Holding device for holding tools
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- LISA DRAXLMAIER GMBH
- Filing Date
- 2024-01-03
- Publication Date
- 2026-07-23
AI Technical Summary
Existing holding devices, particularly vices, face limitations in securely fixing workpieces, especially for complex shapes or applications requiring high precision and safety.
A holding device with adjustable longitudinal and transverse jaws, featuring independent movement and adjustment mechanisms, allowing for precise clamping and adaptation to various workpiece geometries through longitudinal and transverse displacement and locking.
Enables secure and versatile clamping of workpieces with complex geometries, ensuring high precision and safety by allowing individual adjustment to specific requirements.
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
Technical field
[0001] The invention relates to a holding device, in particular a clamping device, for holding, in particular clamping, workpieces. The holding device has two longitudinal jaws between which the workpieces are held. State of the art
[0002] Generally, holding devices, particularly in the form of vices, are known in the art as workpiece holders. Such holding devices enable the reliable clamping of workpieces between two jaws, allowing work to be carried out on the workpieces.
[0003] However, the holding devices known to date have some limitations in practice regarding optimal workpiece holding. In particular, the fixation of the workpieces is not always ideal, especially for complex shapes or applications with higher demands on precision and safety.
[0004] There is therefore a need for an improved holding device that specifically addresses the deficiencies of the known holding devices and provides improvements in workpiece holding. Description of the invention
[0005] The invention is therefore based on the object of providing a holding device which eliminates the above-mentioned problems and disadvantages of the prior art.
[0006] This object is achieved by the subject matter of independent claim 1. Further possible embodiments of the invention are specified in particular in the dependent claims.
[0007] The solution according to the invention consists in particular in providing a holding device, in particular a clamping device, for holding, in particular clamping, workpieces. The workpieces are clamped, in particular, between two longitudinal jaws. The holding device preferably has a first longitudinal jaw and a second longitudinal jaw. The second longitudinal jaw is preferably movable, in particular linearly displaceable, in a longitudinal direction relative to the first longitudinal jaw.
[0008] According to the invention, the first and / or second longitudinal jaws have a jaw adjustment device. Preferably, each of the two longitudinal jaws has a jaw adjustment device. The jaw adjustment device preferably has a first transverse jaw and a second transverse jaw. The second transverse jaw is movable, in particular linearly displaceable, relative to the first transverse jaw in a transverse direction perpendicular to the longitudinal direction.
[0009] The holding device is generally designed to hold workpieces, i.e., to fix them in their position and / or angular alignment. The workpiece to be held is positioned between the two longitudinal jaws, which are then moved toward each other and come into contact with the workpiece on both sides, thus clamping the workpiece between them.
[0010] The workpiece can be any clampable part. For example, it can be parts that need to be held during assembly or testing work. The workpieces can be finished parts, blanks, or semi-finished products.
[0011] The two longitudinal jaws are two elements of the holding device that are movable relative to one another in a longitudinal direction. This allows the distance between the two longitudinal jaws to be increased or decreased. At least one of the longitudinal jaws is a movable longitudinal jaw and is mounted displaceably relative to the other longitudinal jaw. The at least one movable longitudinal jaw preferably moves in a straight line, with the angle of the longitudinal jaws relative to one another preferably remaining unchanged, regardless of the distance between the two longitudinal jaws.
[0012] The jaw adjustment device is designed to adjust the corresponding longitudinal jaw. When adjusting the corresponding longitudinal jaw, a part of the longitudinal jaw is adjusted in a transverse direction. For this purpose, the jaw adjustment device has at least a first and a second cross jaw, wherein the second cross jaw is adjustable in the transverse direction relative to the first cross jaw. As a result, a distance between the first cross jaw and the second cross jaw can be increased or decreased accordingly. On the one hand, this can be used to hold or clamp an area of the workpiece between the first cross jaw and the second cross jaw. On the other hand, it can be used to create a gap or passage on the corresponding longitudinal jaw through which a protruding area of the workpiece can extend. In this way, the longitudinal jaw can be adapted to the workpiece to be held using the jaw adjustment device.
[0013] According to an advantageous development of the invention, the first cross jaw is designed to be movable in the transverse direction relative to the second cross jaw, in particular to be linearly displaceable.
[0014] If not only the second cross jaw is movable relative to the first cross jaw, but also the first cross jaw relative to the second cross jaw, the possibilities for adapting the jaw adjustment device to the workpiece are increased.
[0015] Preferably, both the first and the second longitudinal jaws have a corresponding jaw adjustment device, in which particularly preferably both the first transverse jaw and the second transverse jaw are designed to be movable, in particular linearly displaceable.
[0016] In an advantageous development of the invention, the first and / or the second transverse jaw is designed to be displaceable relative to the corresponding longitudinal jaw.
[0017] The first and / or second transverse jaws are designed to be displaceable relative to the corresponding longitudinal jaw, particularly in the transverse direction. Since the first and / or second transverse jaws are preferably formed as part of the corresponding longitudinal jaw, it is understood that they are designed to be movable relative to the remaining part of the corresponding longitudinal jaw.
[0018] Preferably, the corresponding longitudinal jaw supports the first and second transverse jaws. The first and second transverse jaws are therefore preferably arranged on the corresponding longitudinal jaw.
[0019] According to an advantageous development of this embodiment, the first and second cross jaws are each mounted so as to be displaceable independently of each other relative to the corresponding longitudinal jaw. This means that the first cross jaw is movable independently of any movement of the second cross jaw, and the second cross jaw is correspondingly movable independently of any movement of the first cross jaw.
[0020] The described design further increases the adaptability of the cross jaws and thus also of the jaw adjustment device as a whole to the workpiece. The independent movement significantly increases the versatility of the holding device, allowing for individual adaptation to specific requirements.
[0021] In an advantageous development of the invention, the second longitudinal jaw has a guide contour for guiding the first and / or second transverse jaw. Thus, the longitudinal jaw, which has the first and second transverse jaws, also has a corresponding guide contour for guiding the first and second transverse jaws.
[0022] The guide contour on the longitudinal jaws ensures reliable guidance of the corresponding cross jaws. This increases the stability of the holding device itself and also enables particularly precise positioning of the workpieces.
[0023] At the guide contour, the first and / or second cross jaw preferably comes into positive contact with the longitudinal jaw having the guide contour, so that the movement of the first and / or second cross jaw is guided accordingly by restricting degrees of freedom of movement.
[0024] According to an advantageous development of the invention, the holding device has a longitudinal adjustment mechanism for adjusting the second longitudinal jaw along the longitudinal direction relative to the first longitudinal jaw. Alternatively or additionally, the jaw adjustment device has a transverse adjustment mechanism for adjusting the second transverse jaw along the transverse direction relative to the first transverse jaw and / or for adjusting the first transverse jaw along the transverse direction relative to the second transverse jaw.
[0025] The longitudinal adjustment mechanism allows the distance between the two longitudinal jaws to be adjusted, whereas the transverse adjustment mechanism allows the distance between the two transverse jaws to be adjusted. Furthermore, the longitudinal adjustment mechanism and / or the transverse adjustment mechanism can be designed such that they block movement of the corresponding jaws in their rest position, i.e., when not actuated.
[0026] In principle, the longitudinal adjustment mechanism and the transverse adjustment mechanism can be driven, in particular linearly driven, mechanisms that lead to a translational movement of the jaws.
[0027] Particularly preferably, the holding device has only a longitudinal adjustment mechanism for adjusting the second longitudinal jaw along the longitudinal direction relative to the first longitudinal jaw. Then, the jaw adjustment device does not have a transverse adjustment mechanism. Depending on the use of the holding device, no forces act on the transverse jaws during operation, i.e., no forces in the transverse direction, but only forces in the longitudinal direction. Accordingly, the first and second transverse jaws do not need to be designed to be lockable, but only movable.
[0028] In an advantageous further development of this embodiment, the longitudinal adjustment mechanism and / or the transverse adjustment mechanism is designed as a threaded spindle, centric clamp or quick-release screw.
[0029] These mechanisms allow for easy movement, i.e. adjustment, of the corresponding jaws.
[0030] The spindle of the threaded spindle can be rotated, for example, by means of a crank or a drive wheel.
[0031] In an advantageous development of the invention, the first longitudinal jaw is designed as part of a base body, which preferably has a guide contour for guiding the second longitudinal jaw.
[0032] The first longitudinal jaw is, in particular, formed integrally with the base body. Accordingly, the first longitudinal jaw is stationary and immovable. The guide contour secures the second longitudinal jaw to the base body in a form-fitting manner, so that only a translational movement of the second longitudinal jaw is possible. The angle between the two longitudinal jaws does not change. The second longitudinal jaw is therefore guided in a rotationally fixed manner. Independently of this, the guide contour can comprise a guide or slide rail.
[0033] In an advantageous development of the invention, the first and / or second cross jaw is designed as a pivoting jaw. The first and / or second cross jaw is then preferably arranged pivotably between a raised sliding position and a lowered locking position, in particular on one of the longitudinal jaws.
[0034] In the sliding position, the cross jaw can be moved in the transverse direction. In the locking position, movement of the cross jaw in the transverse direction is blocked. For example, the corresponding cross jaw can be pivoted about a pivot axis body that is arranged on the longitudinal jaw and extends in the transverse direction. The pivot axis body preferably also serves as a guide when moving the cross jaw in the transverse direction.
[0035] In an advantageous further development of this embodiment, the pivoting jaw engages with the longitudinal jaw in the lowered locking position or is in frictional contact with it.
[0036] The engagement between the longitudinal jaw and the pivoting jaw prevents the pivoting jaw from moving in the transverse direction. The same applies to the friction between the longitudinal jaw and the pivoting jaw.
[0037] This means that the cross jaw can be locked using simple means.
[0038] The holding device according to the invention is particularly preferably suitable for the testing and assembly of assemblies. In particular, the holding device is suitable for testing sealed components with complex geometries. However, the use of the present holding device is not limited to this. Rather, a wide variety of possible applications arise. Short description of the drawings
[0039] The various exemplary features described above can be combined with one another according to the invention, provided this is technically reasonable and suitable. Further features, advantages, and embodiments of the invention will become apparent from the following description of the figures and the exemplary embodiment illustrated in the figures. They show: Fig. 1 is a perspective view of a holding device according to a first embodiment of the invention; Fig. 2 is a perspective view of a holding device according to a second embodiment of the present invention; and Fig. 3 a perspective view of a detail of the present invention, in which the first cross jaw and the second cross jaw are designed as pivoting jaws. Ways to implement the invention
[0040] Fig. 1 shows a holding device 100 for holding workpieces. The holding device 100 has a base body 140. The base body 140 can be arranged on a surface, for example, on a workbench. The base body 140 can, as shown in Fig. 1, have several holes for attachment to the surface.
[0041] The holding device 100 has a first longitudinal jaw 110 and a second longitudinal jaw 120. As in Fig. 1, the first longitudinal jaw 110 is formed as part of the base body 140. This means that the first longitudinal jaw 110 cannot move relative to the base body 140. Independently of this, the second longitudinal jaw 120 is designed to be movable. In particular, the second longitudinal jaw 120 is movable both relative to the first longitudinal jaw 110 and relative to the base body 140. The second longitudinal jaw 120 is linearly displaceable in a longitudinal direction indicated by an arrow.
[0042] The linear displacement of the second longitudinal jaw 120 is guided by a guide contour 141 of the base body 140. The second longitudinal jaw 120 and the guide contour 141 are designed to complement each other in such a way that the movement in the longitudinal direction is enabled and further movements, for example in the transverse direction or rotations or tilting of the second longitudinal jaw 120 are prevented. Even if this is Fig. 1, the guide contour 141 can, for example, have a guide rail for guiding the second longitudinal jaw 120.
[0043] If the second longitudinal jaw 120 is moved away from the first longitudinal jaw 110, the distance between the first longitudinal jaw 110 and the second longitudinal jaw 120 increases. A workpiece can be inserted into the space created by the distance between the first longitudinal jaw 110 and the second longitudinal jaw 120. If the second longitudinal jaw 120 is then moved back toward the first longitudinal jaw 110, the workpiece can be clamped.
[0044] The first longitudinal jaw 110 and the second longitudinal jaw 120 each have a jaw adjustment device 111, 121. As in Fig. 1, jaw-shaped parts of the corresponding longitudinal jaw 110, 120 can be moved by means of the jaw adjustment device 111, 121.
[0045] The jaw adjustment device 111, 121 is designed in particular by means of a first cross jaw 112, 122 and a second cross jaw 113, 123. As in Fig. 1, all cross jaws 112, 113, 122, 123 are movable in a transverse direction perpendicular to the longitudinal direction. In particular, the first cross jaw 112 is movable relative to the second cross jaw 113 and vice versa. Furthermore, the first cross jaw 122 is movable relative to the second cross jaw 123 and vice versa. The cross jaws 112, 113, 122, 123 are all designed to be movable independently of one another.
[0046] The movable cross jaws 112, 113, 122, 123 allow the upper side of the longitudinal jaws 110, 120 to be individually adapted to the workpiece to be held. For example, it is possible to arrange the cross jaws 112, 113, 122, 123 in such a way that they make room for a protruding area of the workpiece. In this case, the protruding area of the workpiece then extends through the opening or gap formed between the first cross jaw 112, 122 and the second cross jaw 113, 123. The opening, i.e., the distance between the first cross jaw 112, 122 and the second cross jaw 113, 123, can be changed and adjusted accordingly by moving the corresponding cross jaw 112, 113, 122, 123 in the transverse direction.
[0047] As also in Fig. 1, the first longitudinal jaw 110 and the second longitudinal jaw 120 each have a guide contour 126 for guiding the first transverse jaw 112, 122 and the second transverse jaw 113, 123. Here, too, the guide contour 126 is complementary to the corresponding transverse jaw 112, 113, 122, 123, so that movement of the transverse jaw 112, 113, 122, 123 in the transverse direction is enabled and in the longitudinal direction, as well as rotation, is prevented.
[0048] If, as described in the previous example, the holding device 100 is primarily designed for holding, i.e., clamping, the workpieces in the longitudinal direction, the cross jaws 112, 113, 122, 123 do not need to have a driven transverse adjustment mechanism. The cross jaws 112, 113, 122, 123 can then simply be moved directly by hand, for example.
[0049] In principle, it would also be conceivable for the second longitudinal jaw 120 to be correspondingly displaceable by hand and then designed to be lockable by means of a blocking mechanism that prevents movement in the longitudinal direction, so that the workpiece can be clamped between the first longitudinal jaw 110 and the second longitudinal jaw 120. However, the holding device 100 preferably has at least one longitudinal adjustment mechanism 130 for adjusting and locking the second longitudinal jaw 120 along the longitudinal direction.
[0050] In particular, the Fig. The holding device 100 shown in Figure 2 has a longitudinal adjustment mechanism 130 configured as a threaded spindle. By means of such a longitudinal adjustment mechanism 130, a movement of the longitudinal jaw 120 can be generated by rotating the threaded spindle. If the threaded spindle is not rotated, a movement of the longitudinal jaw 120 is blocked.
[0051] As an example, the Fig. 2, the holding device 100 also has transverse adjustment mechanisms 114, 124. The transverse adjustment mechanisms 114, 124 serve to adjust the first cross jaw 112 and the first cross jaw 122. The transverse adjustment mechanisms 114, 124 are also designed as threaded spindles. Here, it can also be seen that the threaded spindle is driven by a drive wheel 115, 125. The drive wheel 115, 125 is rotated, so that a rotation of the threaded spindle is generated. Through a threaded engagement with the corresponding clamping jaw 112, 122, the rotational movement is converted into a linear movement of the cross jaw 112, 122. The second cross jaws 113, 123 also each have a corresponding transverse adjustment mechanism, which in Fig. 2, however, is not provided with a reference symbol.
[0052] Fig. Figure 2 thus shows an embodiment in which the longitudinal jaw 120 and all transverse jaws 112, 113, 122, 123 are each adjustable by means of their own adjustment mechanism. All adjustment mechanisms are embodied as threaded spindles, for example. Of course, other adjustment mechanisms would be conceivable.
[0053] Fig. Figure 3 shows an alternative jaw adjustment device 111. Here, the first cross jaw 112 and the second cross jaw 113 are designed as pivoting jaws. The pivoting jaws can be pivoted about a pivot axis body 118. For this purpose, the first cross jaw 112 and the second cross jaw 113 each have openings 119 through which the pivot axis body 118 extends.
[0054] Thus, the first transverse jaw 112 and the second transverse jaw 113 can be pivotally arranged on the longitudinal jaw 110.
[0055] In the Fig. 3, the first transverse jaw 112 is in a lowered locking position. In the lowered locking position, the transverse jaw 112 engages with the longitudinal jaw 110. For this purpose, the transverse jaw 112 has a toothed region 116 that engages with a complementarily toothed region 117 of the longitudinal jaw 110.
[0056] The second cross jaw 113, however, is in a raised sliding position. As in Fig. 3, in the raised displacement position the toothed areas 116 and 117 are disengaged, so that the cross jaw 113 can be displaced along the pivot axis body 118.
[0057] Alternatively to the Fig. A frictional contact would also be conceivable for the engagement between the transverse jaw 112, 113 and the longitudinal jaw 110 shown in Figure 3. In this case, the transverse jaw 112, 113 and / or the longitudinal jaw 110 would, for example, have a rubberized friction surface.
[0058] The Fig. The jaw adjustment device 111 shown in Figure 3 enables particularly simple adjustment of the cross jaws 112, 113. Both Fig. 1 or Fig. 2, the jaw adjustment devices 111, 121 shown must be designed accordingly.
[0059] Overall, the combination of longitudinal jaws 110, 120 and transverse jaws 112, 113, 122, 123 allows a versatilely adaptable holding device 100 to be achieved. LIST OF REFERENCE SYMBOLS 110, 120 longitudinal jaws 111, 121 Jaw adjustment device 112, 122 first cross jaw 113, 123 second cross jaw 114, 124 Transverse adjustment mechanisms 115, 125 drive wheel 116, 117 interlocking areas 118 Swivel axis body 119 Opening 126 guide contour 130 Longitudinal adjustment mechanism 140 base bodies 141 Guide contour
Claims
[1] Holding device (100), in particular clamping device, for holding, in particular clamping, workpieces, in particular between two longitudinal jaws (110, 120), wherein the holding device (100) comprises the following: a first longitudinal jaw (110); and a second longitudinal jaw (120) which is movable, in particular linearly displaceable, in a longitudinal direction relative to the first longitudinal jaw (110), characterized by that the first longitudinal jaw (110) and / or the second longitudinal jaw (120) has a jaw adjustment device (111, 121), wherein the jaw adjusting device (111, 121) comprises: a first cross jaw (112, 122); and a second transverse jaw (113, 123) which is movable, in particular linearly displaceable, in a transverse direction perpendicular to the longitudinal direction relative to the first transverse jaw (112, 122). [2] Holding device (100) according to claim 1, characterized bythat the first cross jaw (112, 122) is movable, in particular linearly displaceable, in the transverse direction relative to the second cross jaw (113, 123). [3] Holding device (100) according to claim 1 or 2, characterized by that the first transverse jaw (112, 122) and / or the second transverse jaw (113, 123) is designed to be displaceably mounted relative to the corresponding longitudinal jaw (110, 120). [4] Holding device (100) according to claim 3, characterized by that the first transverse jaw (112, 122) and the second transverse jaw (113, 123) are each designed to be displaceable independently of one another relative to the corresponding longitudinal jaw (110, 120). [5] Holding device (100) according to one of the preceding claims, characterized by that the first longitudinal jaw (110) and / or the second longitudinal jaw (120) has a guide contour (126) for guiding the first transverse jaw (112, 122) and / or the second transverse jaw (113, 123). [6] Holding device (100) according to one of the preceding claims, characterized by that the holding device (100) has a longitudinal adjustment mechanism (130) for adjusting the second longitudinal jaw (120) along the longitudinal direction relative to the first longitudinal jaw (110) and / or the jaw adjustment device (111, 121) has a transverse adjustment mechanism (114, 124) for adjusting the second transverse jaw (113, 123) along the transverse direction relative to the first transverse jaw (112, 122) and / or for adjusting the first transverse jaw (112, 122) along the transverse direction relative to the second transverse jaw (113, 123). [7] Holding device (100) according to claim 6, characterized by that the longitudinal adjustment mechanism (130) and / or the transverse adjustment mechanism (114, 124) is designed as a threaded spindle, centric clamp or quick-clamping screw. [8] Holding device (100) according to one of the preceding claims, characterized bythat the first longitudinal jaw (110) is formed as part of a base body (140) which preferably has a guide contour (141) for guiding the second longitudinal jaw (120). [9] Holding device (100) according to one of the preceding claims, characterized by that the first transverse jaw (112, 122) and / or the second transverse jaw (113, 123) is designed as a pivoting jaw which is pivotably arranged between a raised displacement position and a lowered locking position, in particular on one of the longitudinal jaws (110, 120). [10] Holding device according to claim 9, characterized by that the transverse jaw (112, 122, 113, 123) designed as a pivoting jaw engages with the longitudinal jaw (110, 120) in the lowered locking position or is in frictional contact with the longitudinal jaw (110, 120).