Four-axis clamp for precise CNC machining center

Abstract

The utility model belongs to the technical field of four-axis clamps, and particularly relates to a four-axis clamp for a precision CNC machining center. Comprising a bottom plate, a rotary table is installed on the bottom plate, a rotary disc is fixedly installed on the rotary table, a chuck is mechanically connected to the rotary disc, and the rotary disc is provided with a convenient fixing mechanism corresponding to the chuck. Through the improvement and optimization of the structure, the chuck can be quickly mounted and dismounted by controlling one rotating block, so that workers can replace the chuck conveniently, and the overall working efficiency is improved; and through the design of the arc-shaped protrusions and the arc-shaped grooves, the chuck and the rotating disc can be conveniently positioned in advance, and the overall installation efficiency is further improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to four -axis clamp technical field, concretely relates to a four -axis clamp for precision CNC machining center. BACKGROUND

[0002] Four -axis clamp is a tooling fixture for four -axis numerical control machine tool (or four -axis machining center), is mainly used for clamping, positioning workpiece, makes it keep stable in four -axis machining process, satisfies four degrees of freedom (usually for XYZ three straight -line axes and one rotation axis, such as A axis or B axis) processing demand simultaneously.

[0003] However in using a period of time or needing to be aimed at the clamping of different parts, need to replace the corresponding fixed chuck, the traditional replacement mode is to send the bolt for fixing, and need to use the internal hexagonal spanner to gradually loosen the bolt in the diagonal line order (such as first loosening 1 point and 4 point direction, then loosening 2 point and 5 point direction), avoid uneven force and lead to the deformation of chuck;When replacing as a whole, it is relatively inconvenient, and the overall machining efficiency is affected;In view of the above problems, a four -axis clamp for precision CNC machining center is provided. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the problems in the background art, the utility model provides a four -axis clamp for precision CNC machining center;Can quickly and conveniently replace new chuck, improve the overall work efficiency.

[0005] The utility model provides a four -axis clamp for precision CNC machining center, including the bottom plate, install the rotary table on the bottom plate, fixedly install the rotating disc on the rotary table, be connected with the chuck mechanically on the rotating disc, the rotating disc is equipped with the convenient fixing mechanism corresponding the chuck;The convenient fixing mechanism includes the cavity in the rotating disc, a plurality of double -threaded screw one and double -threaded screw two are uniformly and symmetrically connected with the cavity, rotatingly connected with the rotating block on the rotating disc, the rotating block is fixedly connected with one of the double -threaded screw two, the double -threaded screw one is fixedly installed with bevel gear one, the double -threaded screw two away from the rotating block is fixedly installed with bevel gear two, the bevel gear one and bevel gear two are intermeshed, bevel gear two is fixedly installed with the transmission rod, the transmission rod is fixedly connected with the corresponding double -threaded screw two, the rotating disc is equipped with the strip -shaped through -hole corresponding double -threaded screw one and double -threaded screw two, the strip -shaped through -hole is symmetrically connected with the L -shaped clamping plate slidingly, the L -shaped clamping plate extends into the cavity and is threadedly connected with double -threaded screw one and double -threaded screw two corresponding one end, the chuck is equipped with the clamping groove corresponding the L -shaped clamping plate.

[0006] Further, a plurality of arc protrusions are fixedly installed on the rotating disc, and a magnet is fixedly installed at the center of the rotating disc.

[0007] Further, the chuck corresponding arc-shaped protrusion is provided with an arc-shaped groove, and the chuck corresponding magnet is provided with a groove.

[0008] Further, the chuck can be a vice clamp and a three-jaw clamp.

[0009] Further, the bottom plate is uniformly provided with a plurality of positioning sliding grooves.

[0010] Further, the rotating block is provided with a polygonal groove.

[0011] Further, the L-shaped clamping plate is in sliding connection with the inner wall of the cavity.

[0012] The utility model discloses the beneficial effects of:

[0013] The utility model discloses through structure improvement and optimization, can realize quick installation and disassembly to chuck through the control one rotating block, has replaced the convenience to the worker to chuck, has improved the overall work efficiency, through the design of arc-shaped protrusion and arc-shaped groove, can conveniently position in advance to chuck and rotating disc, further improves the installation efficiency of whole. ACCURATE CNC MACHINING CENTER USES FOUR-AXIS CLAMP

[0014] Figure 1 It is the schematic diagram of the four-axis clamp for the precision CNC machining center of the utility model.

[0015] Figure 2 It is the schematic diagram of the chuck after removal of the four-axis clamp for the precision CNC machining center of the utility model.

[0016] Figure 3 It is the schematic diagram of the rotating disc of the four-axis clamp for the precision CNC machining center of the utility model.

[0017] Figure 4 It is the sectional view of the rotating disc of the four-axis clamp for the precision CNC machining center of the utility model.

[0018] Figure 5 It is the schematic diagram of the chuck of the four-axis clamp for the precision CNC machining center of the utility model.

[0019] As shown in the figure:

[0020] 1, bottom plate, 2, rotating table, 3, rotating disc, 4, chuck, 5, cavity, 6, double thread screw one, 7, double thread screw two, 8, rotating block, 9, bevel gear one, 10, bevel gear two, 11, transmission rod, 12, strip-shaped through hole, 13, L-shaped clamping plate, 14, clamping groove, 15, arc-shaped protrusion, 16, magnet, 17, arc-shaped groove, 18, groove, 19, positioning sliding groove, 20, polygonal groove. CONCRETE IMPLEMENTATION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0022] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood in a broad sense. For example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0023] Please refer to all the drawings of the specification:

[0024] A four-axis clamp for precision CNC machining center, including bottom plate 1, the bottom plate 1 is installed with rotary table 2, rotary table 2 is fixedly installed with rotary disc 3, rotary disc 3 is mechanically connected with chuck 4, rotary disc 3 is equipped with convenient fixing mechanism corresponding chuck 4;

[0025] Convenient fixing mechanism includes cavity 5 in rotary disc 3, a plurality of double-threaded screw one 6 and double-threaded screw two 7 are uniformly and symmetrically rotatably connected in cavity 5, rotary block 8 is rotatably connected on rotary disc 3, rotary block 8 is fixedly connected with one of double-threaded screw two 7, double-threaded screw one 6 is fixedly installed with bevel gear one 9, double-threaded screw two 7 away from rotary block 8 is fixedly installed with bevel gear two 10, bevel gear one 9 and bevel gear two 10 are mutually engaged, bevel gear two 10 is fixedly installed with transmission rod 11, transmission rod 11 is fixedly connected with corresponding double-threaded screw two 7, rotary disc 3 is equipped with strip-shaped through hole 12 corresponding double-threaded screw one 6 and double-threaded screw two 7, L-shaped clamping plate 13 is symmetrically and slidably connected on strip-shaped through hole 12, L-shaped clamping plate 13 extends into cavity 5 and is threadedly connected with double-threaded screw one 6 and double-threaded screw two 7 at one end, chuck 4 is equipped with clamping groove 14 corresponding L-shaped clamping plate 13;

[0026] From the above description, when the chuck 4 is replaced, the clamping groove 14 of the chuck 4 is aligned with the two L-shaped clamping plates 13, so that the L-shaped clamping plates 13 extend into the clamping groove 14, then the rotating block 8 is directly rotated, so that the double-threaded screw two 7 inside is rotated, under the transmission of the transmission rod 11, the bevel gear two 10 is rotated, the bevel gear one 9 is rotated, and the other double-threaded screw one 6 and the double-threaded screw two 7 are rotated synchronously, so that the L-shaped clamping plates 13 can be moved synchronously and slowly clamped and fixed in the clamping groove 14, so that the chuck 4 is replaced and fixed.

[0027] As a technical optimization scheme of the utility model, a plurality of arc protrusions 15 are fixedly installed on the rotating disc 3, and a magnet 16 is fixedly installed at the center of the rotating disc 3; the chuck 4 is provided with an arc-shaped groove 17 corresponding to the arc-shaped protrusion 15, and the chuck 4 is provided with a groove 18 corresponding to the magnet 16;

[0028] From the above description, the arc-shaped groove 17 and the arc-shaped protrusion 15 are matched with each other, the magnet 16 can be matched with the groove 18 through mutual adsorption with the chuck 4, and the adsorption of the magnet 16 can be realized, so that the stability is better during fixing.

[0029] As a technical optimization scheme of the utility model, the chuck 4 can be a vice clamp and a three-jaw clamp;

[0030] From the above description, mainly aiming at the fixing and clamping of different parts, the chuck 4 needs to be replaced.

[0031] As a technical optimization scheme of the utility model, a plurality of positioning sliding grooves 19 are uniformly arranged on the bottom plate 1;

[0032] From the above description, the rotating table 2 can be installed at the corresponding working position through the positioning sliding groove 19, and the four-axis clamp can be used to finely process the parts.

[0033] As a technical optimization scheme of the utility model, a polygonal groove 20 is arranged on the rotating block 8;

[0034] From the above description, the polygonal groove 20 is a regular hexagonal groove, which can be controlled to rotate through an inside angle wrench, and the rotating block 8 is more convenient to control.

[0035] As a technical optimization scheme of the utility model, the L-shaped clamping plate 13 is in sliding connection with the inner wall of the cavity 5;

[0036] From the above description, the sliding connection mode can make the movement of the L-shaped clamping plate 13 more stable.

[0037] The working process of the utility model is as follows:

[0038] When the different chuck 4 needs to be replaced, the rotating block 8 is directly rotated through the hexagonal wrench inserted into the polygonal recess 20, so that the L-shaped clamping plates 13 on both sides are retracted, so that the rotating disc 3 is disconnected with the chuck 4; then the arc-shaped recess 17 on the new chuck 4 is matched with the arc-shaped protrusion 15, the magnet 16 can be matched with the recess 18 through mutual adsorption with the chuck 4, and the adsorption of the magnet 16 is realized, and the stability is better when fixed; the rotating block 8 is rotated, so that the double-threaded screw rod two 7 inside is rotated, under the transmission of the transmission rod 11, the bevel gear two 10 is rotated, so that the bevel gear one 9 is rotated, synchronously drives other double-threaded screw rod one 6 and double-threaded screw rod two 7 to rotate, so that the L-shaped clamping plate 13 can be synchronously moved, and slowly clamped and fixed in the clamping groove 14, so that the chuck 4 completes the replacement and fixing.

[0039] The above describes the utility model and its implementation mode, and this description is not restrictive, and the specific embodiment shown is only one of the implementation modes of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structure modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.

Claims

1. A four-axis fixture for a precision CNC machining center, comprising a base plate on which a rotary table is mounted, characterized in that: A rotating disk is fixedly installed on the turntable, and a chuck is mechanically connected to the rotating disk. A convenient fixing mechanism is provided on the rotating disk corresponding to the chuck. The convenient fixing mechanism includes a cavity located within the rotating disk. Several double-threaded screws (first and second) are symmetrically and uniformly rotatably connected within the cavity. A rotating block is rotatably connected to the rotating disk, and the rotating block is fixedly connected to one of the double-threaded screws (second). A bevel gear (first) is fixedly installed on the double-threaded screw (first), and a bevel gear (second) is fixedly installed on the double-threaded screw (second) away from the rotating block. The bevel gears (first and second) mesh with each other. A transmission rod is fixedly installed on the bevel gear (second), and the transmission rod is fixedly connected to the corresponding double-threaded screw (second). A strip-shaped through hole is provided on the rotating disk corresponding to the double-threaded screws (first and second). An L-shaped clamp is symmetrically slidably connected to the strip-shaped through hole. One end of the L-shaped clamp extends into the cavity and is threadedly connected to the double-threaded screws (first and second). A slot is provided on the chuck corresponding to the L-shaped clamp.

2. The four-axis fixture for a precision CNC machining center according to claim 1, characterized in that: Several arc-shaped protrusions are fixedly installed on the rotating disk, and a magnet is fixedly installed at the center of the rotating disk.

3. A four-axis fixture for a precision CNC machining center according to claim 2, characterized in that: The chuck has an arc-shaped groove corresponding to the arc-shaped protrusion, and the chuck has a groove corresponding to the magnet.

4. A four-axis fixture for a precision CNC machining center according to claim 1, characterized in that: The chuck can be a vise clamp or a three-jaw clamp.

5. A four-axis fixture for a precision CNC machining center according to claim 1, characterized in that: The base plate is evenly provided with several positioning grooves.

6. A four-axis fixture for a precision CNC machining center according to claim 1, characterized in that: The rotating block is provided with polygonal grooves.

7. A four-axis fixture for a precision CNC machining center according to claim 1, characterized in that: The L-shaped clamp is slidably connected to the inner wall of the cavity.

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