Multi-station floating clamp holder for clamping sheet workpiece
阅读说明:本技术 装夹薄片工件的多工位浮动夹持器 (Multi-station floating clamp holder for clamping sheet workpiece ) 是由 吴国斌 吴春蓉 李相东 于 2019-11-22 设计创作,主要内容包括:本发明公开的一种装夹薄片工件的多工位浮动夹持器,旨在提供一种能方便夹持装夹薄片工件的夹持器,本发明通过下述技术方案实现:夹持薄片工件的压板设置在基座工作台上,压板工作台中心线的压板后设有定位板,线阵排列在基座工作台上的多个薄片工件通过定位板上的缺口定位,被浮动夹持在压板的下方;首尾两端的薄片工件下端设有对称中心的螺柱,穿过工作台其下限位板并关于螺柱对称的两个联动推板组,通过两个关于螺柱对称的助推连杆上的弹性对顶压板的压簧,同时通过销轴铰接穿过螺柱的压板镙接在螺柱转动的球面螺母,沿螺柱压迫两边对称的助推连杆,推动两联动推板并压缩压簧,向压板施力达到受力平衡,在联动推板作用下浮动夹持多个薄片工件。(The invention discloses a multi-station floating clamp holder for clamping sheet workpieces, aiming at providing a clamp holder which can conveniently clamp and clamp sheet workpieces, and the invention is realized by the following technical scheme: the pressing plate for clamping the sheet workpieces is arranged on the base workbench, a positioning plate is arranged behind the pressing plate on the central line of the pressing plate workbench, and the plurality of sheet workpieces which are linearly arrayed on the base workbench are positioned through notches on the positioning plate and are clamped below the pressing plate in a floating manner; the lower ends of the sheet workpieces at the head end and the tail end are provided with studs with symmetrical centers, the two linkage push plate groups penetrate through the lower limiting plate of the workbench and are symmetrical relative to the studs, the two compression springs of the compression plates are abutted through the elasticity of two boosting connecting rods which are symmetrical relative to the studs, the compression plates which penetrate through the studs in a hinged mode are connected with spherical nuts which rotate relative to the studs in a screwed mode through hinge pins, the two linkage push plates are pushed along the studs to compress the compression springs, the force is applied to the compression plates to achieve stress balance, and the sheet workpieces are clamped in a floating mode under the action of the linkage push plates.)
1. A multi-station floating clamp holder for clamping thin-sheet workpieces comprises: as fixing base (1) on the workstation during processing, clamp plate (3) of centre gripping thin slice work piece (5), its characterized in that: a pressing plate (3) arranged on the base workbench is symmetrical to the center line of the workbench, a positioning plate (4) is arranged behind the pressing plate (3), and a plurality of sheet workpieces (5) are arranged on the base workbench in a linear array manner, positioned through a notch on the positioning plate (4), and clamped below the pressing plate (3) in a floating manner; the lower ends of sheet workpieces (5) positioned at the head end and the tail end are provided with studs (13) with symmetrical centers, two linkage push plate groups (7) which penetrate through a lower limiting plate (14) of the workbench and are symmetrical relative to the studs (13) are hinged with two boosting connecting rods (10) which are symmetrical relative to the studs (13) through rotating pins (9), each boosting connecting rod (10) is provided with a pressure spring (6) which penetrates through the limiting plate (14) and the workbench and simultaneously elastically pushes against the pressure plate (3), the pressure plate (3) which is hinged with a spring cylinder through a pin shaft (11) penetrates through the studs (13) assembled through a middle hole, and the studs (13) are fixedly connected on the positioning plate (4) through the lower limiting plate (14); the pressing plate (3) is connected with a spherical nut (12) which rotates through a stud (13) through a screw, the boosting connecting rods (10) which are symmetrical at two sides are pressed along the stud (13), two linkage push plates (7) are pushed and the compression springs (6) are compressed, force is applied to the pressing plate (3) to achieve stress balance, and a plurality of sheet workpieces (5) are clamped in a floating mode under the action of the linkage push plates (7).
2. The multi-station floating clamp holder for clamping the thin sheet workpiece according to claim 1, is characterized in that: the pressing plate (3) is a combination of a strip rectangular plate and a trapezoidal plate, a U-shaped open slot is formed in the rectangular surface extending from the upper bottom of the trapezoidal plate, and a positioning pin (2) fixed on the base (1) is arranged in the U-shaped open slot.
3. The multi-station floating clamp holder for clamping the thin sheet workpiece according to claim 2, is characterized in that: the pressing plate (3) can slide up and down in the U-shaped open slot through the positioning pin (2), so that the pressing plate (3) is prevented from swinging left and right and can only swing back and forth; the pressing plate (3) is fixed below the positioning plate (4) through screws, and the thickness of the front end of the linkage pushing plate 7 is smaller than that of a workpiece.
4. The multi-station floating clamp holder for clamping the thin sheet workpiece according to claim 1, is characterized in that: the lower ends of sheet workpieces 5 positioned at the head end and the tail end are provided with boosting connecting rods (10) of symmetrical studs (13), the linkage push plate (7) generates elastic deformation force to enable the sheet workpieces to be tightly attached to the base (1) through a pressure spring (6) of the elastic opposite-pushing pressure plate (3), and meanwhile, the self-locking is realized through the action of the pressure plate (3) which is hinged to pass through the studs (13) through a pin shaft (11) and a nut sheet of the pressure plate.
5. The multi-station floating clamp holder for clamping the thin sheet workpiece according to claim 1, is characterized in that: the spherical nut (12) presses the pressing plate (3) through the stud (13), the two groups of linkage push plates (7) firstly contact the sheet workpiece (5) under the action of the boosting connecting rod 10, arc vertexes on two sides of the linkage push plates (7), and each group of linkage push plates (7) respectively obtain the reaction force F/2 of the sheet workpiece (5) under the elastic action of the pressure spring 6.
6. The multi-station floating clamp holder for clamping the thin sheet workpiece according to claim 1, is characterized in that: the arc of the vertex on one end of the sheet workpiece (5) falls into a groove notch A formed in the clamping surface of the linkage push plate (7), the clamping arc surface of the clamping section B of the linkage push plate (7) is relatively increased through the groove notch A, and the sheet workpiece (5) obtains a downward balance force to lock the workpiece through the oblique angle 3 degrees of the inclined surface C of the clamping section B of the linkage push plate (7).
7. The multi-station floating clamp holder for clamping the thin sheet workpiece according to claim 1, is characterized in that: the sheet workpiece (5) is positioned in the positioning notch of the positioning plate (4), the pressing plate (3) is pressed along the stud (13) by rotating the spherical surface on the spherical nut (12), the pressing plate (3) pushes the linkage push plate (7) to compress the sheet workpiece (5) through the boosting connecting rod (10), and the pressure spring (6) is compressed.
8. The multi-station floating clamp holder for clamping the thin sheet workpiece according to claim 1, is characterized in that: after the thin sheet workpiece (5) is machined, the spherical nut (12) is loosened, the boosting connecting rod (10) drives the linkage push plate (7) to retreat under the action of the pressure spring (6), the linkage push plate is reset to the initial position, and the thin sheet workpiece (5) is taken out.
Technical Field
The invention relates to a structure for quickly clamping a sheet workpiece, in particular to a floating clamp holder for multi-station sheet workpieces.
Background
In machining, the difficulty of holding thin sheet workpieces with small profiles, thicknesses of 0.5mm to 1.5mm or less is often encountered, and although sheet workpieces can be held by various additional fastening devices, oscillation often occurs during machining. The parts are in a sheet shape and are not beneficial to clamping, if single workpieces are used for clamping one by one, the efficiency is relatively low, considerable unapproved time exists, and the production efficiency is seriously influenced if the batch size is large. Due to the fact that the sheet workpieces have different overall dimensions, the possibility of inconsistent overall shapes exists, and deformation can be caused when the sheet workpieces are not consistent in stress directions in the clamping process. How to reduce the stress of the sheet workpiece in the clamping process and not deform, and the processing efficiency is improved is always the bottleneck of processing.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a multi-station floating clamp holder which is quick in clamping and convenient for clamping a sheet workpiece.
The above object of the present invention can be achieved by a multi-station floating clamp for clamping a thin sheet workpiece, comprising: as
The present invention has the following advantageous effects.
The invention adopts the
According to the invention, a plurality of
According to the invention, the lower ends of
The invention can be applied to the improvement of the processing efficiency of the thickness of the workpiece in the machining process, and can design different positioning plates and pressing plates according to the appearance of the workpiece, thereby realizing the quick clamping of different parts and improving the working efficiency.
Drawings
Fig. 1 is a front view of the multi-station floating clamp for clamping sheet workpieces.
Fig. 2 is a bottom view of fig. 1.
Fig. 3 is a sectional view taken along line a-a of fig. 2.
Fig. 4 is a schematic diagram of the pressure plate (3) pushing the two groups of linkage push plates to bear force.
Figure 5 is a front view of the push plate of figure 4.
Fig. 6 is a longitudinal sectional view of fig. 5.
Fig. 7 is a partially enlarged schematic view of the apex of fig. 6.
In the figure: the device comprises a
Detailed Description
See fig. 1-2. In a preferred embodiment described below, a multi-station floating gripper for gripping sheet workpieces comprises: the
See fig. 3-4. The
See fig. 4-7. The
During processing operation, firstly, the
The present invention is further illustrated in detail by the specific examples described above. The present invention has been described and illustrated with particular reference to the preferred embodiments thereof, but it is not intended to limit the invention to the particular forms disclosed, since various modifications and changes may be made therein by those skilled in the art, and it is intended to cover in the appended claims any changes in structure or material which fall within the true spirit and scope of the invention.
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