CN208214888U - A Quick Clamping Device for CNC Machining Center - Google Patents

Abstract

The utility model discloses a fast clamping device of CNC machining center, including the clamping table, the clamping table surface is provided with annular seat, the inside of annular seat is provided with multistage clamping mechanism, and one end of the clamping table is provided with a movable ejection mechanism, the multistage clamping mechanism comprises a plurality of air pressure ejector rods arranged on the inner wall of the annular seat, the end of the air pressure ejector rod is connected with a clamping seat, the surface of the clamping seat is provided with an arc seat, the inside of the arc seat is provided with a plurality of extrusion holes, one end of the annular seat is provided with a guide plate arranged on the clamping table, the movable ejection mechanism comprises a positioning seat arranged on the guide plate, one side of the positioning seat close to the annular seat is connected with a hydraulic rod, the end of the hydraulic rod is connected with a pushing seat, the surface of the pushing seat is provided with an arc groove, the inside of the arc groove is provided with an extrusion screw rod, the workpiece, the processing is convenient.

Description

A Quick Clamping Device for CNC Machining Center

technical field

The utility model relates to the technical field of CNC machining, in particular to a quick clamping device for a CNC machining center.

Background technique

The CNC machining center is developed from the CNC milling machine. The biggest difference from the CNC milling machine is that the machining center has the ability to automatically exchange processing tools. By installing different-purpose tools on the tool magazine, the tool can be changed automatically in one clamping. The device changes the processing tool on the main shaft to realize various processing functions.

CNC machining center is a high-efficiency automatic machine tool suitable for processing complex parts composed of mechanical equipment and CNC system. CNC machining center is one of the highest output and most widely used CNC machine tools in the world. Its comprehensive processing ability is strong. After the workpiece is clamped once, it can complete more processing content, and the processing accuracy is high. For batch workpieces with medium processing difficulty, its efficiency is 5 to 10 times that of ordinary equipment, especially it can complete many processing that ordinary equipment cannot complete. It is more suitable for single-piece processing with complex shapes and high precision requirements or small and medium batch production of multiple varieties. It concentrates the functions of milling, boring, drilling, tapping and cutting threads on one device, making it multi-functional. a technological means. Machining centers are classified according to the spatial position of the spindle during machining: horizontal and vertical machining centers. According to the classification of technological purposes: boring and milling machining center, compound machining center, according to special function classification: single workbench, double workbench and multi-workbench machining center. Single-axis, double-axis, three-axis and machining centers with interchangeable spindle boxes, etc.

When processing a workpiece, it is generally necessary to clamp the workpiece through a clamping mechanism for processing.

However, the existing clamping device mainly has the following defects:

(1) The general clamping device is clamped by local direct clamping, which is not only unstable in clamping, but also easily leads to local loosening when the workpiece is clamped, which affects the processing effect;

(2) Moreover, the general clamping device cannot adjust the position of the workpiece after clamping, and each adjustment needs to be clamped again, which greatly prolongs the entire working process and reduces the overall work efficiency.

Contents of the invention

In order to overcome the shortcomings of the existing technical solutions, the utility model provides a fast clamping device for CNC machining centers, which can quickly and comprehensively clamp the workpiece through a multi-stage clamping mechanism to prevent loosening, and at the same time use a movable ejector mechanism to clamp The position adjustment of the workpiece is convenient for processing, and the problems raised by the background technology can be effectively solved.

The technical scheme that the utility model solves its technical problem adopts is:

A quick clamping device for a CNC machining center, comprising a clamping table, the surface of the clamping table is provided with an annular seat, the interior of the annular seat is provided with a multi-stage clamping mechanism, and one end of the clamping table is installed with a movable ejector mechanism;

The multi-stage clamping mechanism includes several air pressure ejector rods installed on the inner wall of the annular seat, the end of the air pressure ejector rod is connected with a clamping seat, the surface of the clamping seat is provided with an arc seat, and the interior of the arc seat Several extrusion holes are provided, and a protruding column is arranged inside the extrusion hole, and an alloy seat is connected to the outer end of the protruding column, and a guide plate installed on the clamping table is provided at one end of the annular seat. The movable ejection mechanism includes a positioning seat installed on the guide plate, a hydraulic rod is connected to the side of the positioning seat close to the annular seat, a push seat is connected to the end of the hydraulic rod, and an arc groove is arranged on the surface of the push seat. An extruding screw is arranged inside the arc-shaped groove.

Further, auxiliary seats are installed on both sides of the annular seat, the bottom end of the auxiliary seat is connected to a support column, the bottom end of the support column is connected to a pressure seat, and both sides of the support column are provided with extrusion rod.

Further, the end of the extruding rod is provided with a pressing seat, and the surface of the pressing seat is provided with spiral lines.

Further, the annular seat is connected to the clamping platform through a connecting base, and a receiving groove is arranged inside the connecting base, and a clamping rod is arranged inside the receiving groove.

Compared with the prior art, the beneficial effects of the utility model are:

(1) The utility model uses a multi-stage clamping mechanism to fully clamp the workpiece, which is convenient for the lathe to perform stable processing, effectively prevents the workpiece from loosening, and the clamping is fast and stable;

(2) While clamping the workpiece, the utility model extrudes the clamped workpiece through the movable ejector mechanism, which facilitates the position adjustment of the workpiece and the comprehensive processing of the workpiece, and does not need repeated clamping during use, so that The overall processing efficiency is higher and the use is more convenient.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is a schematic diagram of the structure of the annular seat of the present invention.

Labels in the figure:

1-clamping platform; 2-ring seat; 3-multi-stage clamping mechanism; 4-movable ejection mechanism; 5-guiding plate; 6-auxiliary seat; 7-supporting column; Pressure rod; 10-pressing seat; 11-spiral pattern; 12-connecting base; 13-accommodating groove; 14-clamping rod;

301-air pressure ejector rod; 302-clamping seat; 303-arc seat; 304-extrusion hole; 305-protruding column; 306-alloy seat;

401-positioning seat; 402-hydraulic rod; 403-propelling seat; 404-arc groove; 405-extrusion screw.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figures 1 and 2, the utility model provides a quick clamping device for a CNC machining center, including a clamping table 1, the surface of the clamping table 1 is provided with an annular seat 2, and the interior of the annular seat 2 is A multi-stage clamping mechanism 3 is provided, and a movable ejection mechanism 4 is installed at one end of the clamping table 1. This device performs multi-stage clamping of the workpiece through the multi-stage clamping mechanism inside the ring seat 2, so that the workpiece can be stabilized. At the same time, after clamping, the working position of the workpiece can be precisely adjusted, which is more convenient, more flexible and practical in actual processing.

The multi-stage clamping mechanism 3 includes several air pressure ejector rods 301 installed on the inner wall of the annular seat 2, the ends of the air pressure ejector rods 301 are connected with a clamping seat 302, and the surface of the clamping seat 302 is provided with an arc-shaped seat 303 , the inside of the arc-shaped seat 303 is provided with several extrusion holes 304, the inside of the extrusion hole 304 is provided with a protruding post 305, and the outer end of the protruding post 305 is connected with an alloy seat 306, firstly through the annular seat 2 The extrusion action of multiple internal air pressure ejector rods 301 exerts pressure on the arc seat 303 of the clamping seat 302, so that the arc seat 303 clamps the workpiece through a plurality of raised columns 305 and alloy seats 306. The two clamping seats 302 are clamped at the same time, so that each part of the workpiece after clamping can maintain a stable state, and the clamping effect is better. At the same time, the alloy seat 306 is specifically made of nickel-based alloy material, which has good wear resistance and anti-skid ability.

One end of the annular seat 2 is provided with a guide plate 5 installed on the clamping table 1, and the movable ejection mechanism 4 includes a positioning seat 401 installed on the guide plate 5, and the positioning seat 401 is close to the side of the annular seat 2 A hydraulic rod 402 is connected, and the end of the hydraulic rod 402 is connected with a push seat 403. The surface of the push seat 403 is provided with an arc-shaped groove 404, and an extrusion screw 405 is arranged inside the arc-shaped groove 404. On the other hand, in After the multi-stage clamping mechanism 3 clamps the workpiece, the position of the workpiece can be adjusted through the movable ejection mechanism 4, so that the position of the processed workpiece can be adjusted, which is more convenient for actual use.

During the specific adjustment, firstly, the air pressure ejector rod 301 shrinks a part to loosen the workpiece, and then the hydraulic rod 402 applies a thrust to make the push seat 403 push the workpiece clamped inside the annular seat 2, thereby pushing the workpiece to adjust its position, which is convenient The rapid processing of the workpiece effectively avoids the problem of wasting time due to repeated clamping.

At the same time, when pushing, the distance is roughly adjusted by the hydraulic rod 402, and the position is precisely adjusted by the extrusion action of multiple extrusion screws 405, so that the position adjustment of the workpiece is more accurate and the adjustment accuracy of the workpiece is improved.

At the same time, when adjusting the position of the workpiece, there is no need to remove the workpiece, which makes the adjustment of the workpiece position more convenient and avoids the problem of low processing efficiency caused by repeated clamping.

It is further illustrated that auxiliary seats 6 are installed on both sides of the annular seat 2, the bottom end of the auxiliary seat 6 is connected with a support column 7, the bottom end of the support column 7 is connected with a pressure seat 8, and the support column 7 Both sides are provided with extruding rods 9 connected with the auxiliary seat 6, and at the same time, when the multi-stage clamping mechanism 3 clamps the workpiece, the auxiliary clamping action of the auxiliary seat 6 on both sides makes the clamped part The force is more uniform, and the problem of local damage or local loosening is not easy to occur, which ensures the stability of the workpiece when it is clamped.

The extrusion rod 9 exerts pressure on the workpiece on the pressure bearing seat 8, so that both sides of the clamped workpiece are well fixed, further improving the overall fixing effect, effectively preventing local loosening, and improving the overall Excellent clamping and positioning effect, convenient for lathe processing.

The end of the extruding rod 9 is provided with a pressing seat 10, and the surface of the pressing seat 10 is provided with a spiral pattern 11. At the same time, the pressing seat 10 is used to improve the overall clamping effect, and the setting of the spiral pattern 11 can effectively increase the The friction effect makes the workpiece more stable when it is clamped.

It should be added that the ring seat 2 is connected to the clamping table 1 through the connection base 12, the connection base 12 is provided with a receiving groove 13 inside, and the inside of the receiving groove 13 is provided with a clamping rod 14. The base 12 fixes the ring seat 2, so that the ring seat 2 can be rotated and adjusted, and it is convenient to rotate when it is actually clamped. At the same time, the ring seat 2 and the connecting base 12 are fixed by the clamping rod 14, which is stable and convenient to use. adjustment and maintenance.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to be included in the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (4)

1. a kind of quick clamping device of CNC machining center, it is characterised in that: including grain-clamping table (1), grain-clamping table (1) table Face is provided with annular seating (2), and the annular seating (2) is internally provided with multistage clamp system (3), and grain-clamping table (1) one end is installed There are movable ejecting mechanism (4)；

The multistage clamp system (3) includes the gas-pressure mandril (301) that several are mounted on annular seating (2) inner wall, the air pressure Mandril (301) end is connected with clamping seats (302), and clamping seats (302) surface is provided with arc-shaped seat (303), the arc Seat (303) is internally provided with several extrusion cavities (304), and the extrusion cavities (304) are internally provided with convex column (305), described Convex column (305) outer end is connected with alloy seat (306), and described annular seating (2) one end is provided with the guiding for being mounted on grain-clamping table (1) Plate (5), the activity ejecting mechanism (4) includes the positioning seat (401) being mounted on guide plate (5), and the positioning seat (401) is leaned on The side of nearly annular seating (2) is connected with hydraulic stem (402), and hydraulic stem (402) end, which is connected with, pushes seat (403), described Seat (403) surface is pushed to be provided with arc groove (404), the arc groove (404) is internally provided with extrusion screw rod (405).

2. a kind of quick clamping device of CNC machining center according to claim 1, it is characterised in that: the annular seating (2) two sides are mounted on auxiliary block (6), and auxiliary block (6) bottom end is connected with support column (7), and support column (7) bottom end connects It is connected to Pressure Block (8), and support column (7) two sides are provided with the pressure ram (9) connecting with auxiliary block (6).

3. a kind of quick clamping device of CNC machining center according to claim 2, it is characterised in that: the pressure ram (9) end is provided with pressed seat (10), and pressed seat (10) surface is provided with spiral thread (11).

4. a kind of quick clamping device of CNC machining center according to claim 1, it is characterised in that: the annular seating (2) it is connect by connecting pedestal (12) with grain-clamping table (1), the connection pedestal (12) is internally provided with holding tank (13), described Holding tank (13) is internally provided with clamping bar (14).