Numerical control machining center clamping mechanism and clamping method thereof

Abstract

The invention discloses a numerical control machining center clamping mechanism which comprises a machining pedestal, a part machining limiting mechanism and a part taking mechanism are installed on the machining pedestal, a clamping carrying mechanism is installed on one side of the machining pedestal, and a conveying platform is installed on one side of the clamping carrying mechanism. The part taking mechanism is used for clamping and transporting parts and then conveying the parts to the part machining limiting mechanism. According to the part machining and welding device, the multiple sets of clamping and fixing mechanisms are arranged, parts can be fed and carried, then the four side face portions of the parts can be clamped and locked through the part machining and limiting mechanisms, safe and stable machining and welding operation on the parts is facilitated, and finally the clamping and carrying mechanisms which can be flexibly rotated and adjusted are arranged, so that the parts can be conveniently machined and welded. The part machining and forming device has the advantages that machined and formed parts can be clamped and conveyed to the conveying platform at multiple angles to be discharged and conveyed, the automation degree is high, operation is easy and convenient, the labor intensity of workers is greatly reduced, and the machining and forming efficiency of the parts is improved.

Description

Technical Field

[0001] The invention relates to the technical field of numerical control center machining, in particular to a clamping mechanism and a clamping method of a numerical control machining center. Background Art

[0002] The clamping mechanism is indispensable when processing objects in the CNC machining center. The clamping mechanism can clamp and fix the objects to be processed, making it convenient for the processing equipment of the CNC machining center to process the objects and improving the efficiency of the processing of the objects.

[0003] The Chinese patent document with authorization announcement number CN218946954U relates to the field of clamping technology of CNC machining centers, and in particular to a clamping mechanism of a CNC machining center, including a block and a base plate, the top of the square frame is connected to a clamping mechanism, the outer wall of the clamping mechanism is connected to a top plate, the top outer side of the top of the top plate is threadedly connected to a plurality of screws, the top of the screw is fixedly connected to a handle, the bottom of the screw is fixedly connected to a pressure plate, the rotating rod in the clamping mechanism drives the stud to rotate, the rotating stud drives the straight plate to move inward on the inner wall of the top plate, so that the straight plate gradually moves toward the square, thereby increasing the area of ​​the top of the base plate, ensuring the placement area of ​​larger workpieces, preventing workpieces from falling during CNC machining, and ensuring the normal use of the clamping mechanism in CNC machining.

[0004] The above-mentioned existing technologies are unable to automatically clamp, carry and load parts, clamp and lock them during processing, and clamp, carry and transport them, resulting in slow processing and forming speed and low efficiency of parts. Therefore, it is necessary to develop a clamping mechanism and a clamping method for a CNC machining center. Summary of the invention

[0005] The purpose of the present invention is to provide a clamping mechanism and a clamping method for a CNC machining center, so as to solve the problem that the prior art proposed in the above background technology is unable to automatically clamp, transport and load parts, clamp and lock them during processing, and clamp, transport and unload them for transportation, resulting in slow processing and forming speed and low efficiency of parts.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a clamping mechanism for a CNC machining center, comprising a machining platform, on which a part machining limiting mechanism and a part picking mechanism are respectively installed, a clamping and transporting mechanism is installed on one side of the machining platform, and a transportation platform is installed on one side of the clamping and transporting mechanism, the part picking mechanism is used to clamp and transport the parts and send them to the part machining limiting mechanism, the part machining limiting mechanism is used to clamp and lock the parts for processing, and the clamping and transporting mechanism is used to clamp and send the processed parts to the transportation platform for transportation and unloading.

[0007] Preferably, the part processing limiting mechanism includes a limiting machine cover, a clamping cylinder, a telescopic rod and a fixed clamping block.

[0008] Preferably, the limiting machine cover is fixed to the upper surface of the processing platform by bolts, the clamping cylinder is located inside the limiting machine cover, the output end of the clamping cylinder is fixedly connected to the fixed clamp block by a telescopic rod, and the clamping cylinder is evenly distributed at the four corners of the processing platform.

[0009] Preferably, a fixed frame is installed on the part picking mechanism, a servo motor is installed on the top surface of the fixed frame, the output end of the servo motor is connected to a lead screw arranged at the front end of the fixed frame through a rotating shaft, and a lead screw slider is installed on the surface of the lead screw.

[0010] Preferably, two fixed slide rods are provided on the front end surface of the fixed frame, the interior of the lead screw slider is connected to the fixed slide rods through a slot, a motor assembly is installed at the front end of the lead screw slider, and the output end of the motor assembly is connected to a rotating base through a rotating shaft.

[0011] Preferably, a forward and reverse motor is installed on the rotating machine base, and an output end of the forward and reverse motor is connected to a roller structure via a rotating shaft.

[0012] Preferably, a first movable track is installed at the upper end of the roller structure, and a second movable track is installed at the lower end of the roller structure. The front ends of the first movable track and the second movable track are both welded and fixed with clamping plates, and the first movable track and the second movable track make linear movements in opposite directions under the action of the roller structure.

[0013] Preferably, a fixed base is installed on the clamping and transporting mechanism, a first motor is installed on the upper end of the fixed base, the output end of the first motor is connected to a first rotating arm via a rotating shaft, a second motor is installed on the upper end of the first rotating arm, and the output end of the second motor is connected to a second rotating arm via a rotating shaft.

[0014] Preferably, a third motor is installed at the front end of the second rotating arm, and the output end of the third motor is connected to the third rotating arm through a rotating shaft. A clamping drive cylinder is installed at the front end of the third rotating arm, and the output end of the clamping drive cylinder is fixedly connected to a manipulator.

[0015] Preferably, a clamping method for a clamping mechanism of a CNC machining center comprises the following method steps:

[0016] S1, turning on the servo motor to drive and adjust the installation height of the lead screw slider, and then turning on the motor assembly to adjust the rotation angle of the rotating base;

[0017] S2, by turning on the forward and reverse motors, the first movable track and the second movable track can be driven to make linear movements in opposite directions along the surface of the roller structure, and the parts can be clamped and fixed by the clamping plate;

[0018] S3, the parts are clamped and transported by the parts taking mechanism and then sent to the parts processing limit mechanism, and the four fixed clamps are controlled by the clamping cylinder to clamp and lock the four sides of the parts for processing;

[0019] S4, turning on the first motor, the second motor and the third motor to control the corresponding rotating arms to adjust the gripping and handling angle, and after the angle is adjusted, turning on the gripping drive cylinder to control the manipulator to carry the processed parts;

[0020] S5. The clamping and transporting mechanism is used to clamp the processed parts and send them to the transport platform for transport and unloading.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The present invention is capable of loading and transporting parts by providing multiple sets of clamping and fixing mechanisms, and then the four side parts of the parts can be clamped and locked by utilizing the parts processing limit mechanisms, so as to facilitate safe and stable processing and welding operations. Finally, by providing a clamping and transport mechanism that can be flexibly rotated and adjusted, the processed parts can be clamped at multiple angles and sent to the transport platform for unloading and transportation operations. It has the advantages of high degree of automation and simple and convenient operation, which greatly reduces the labor intensity of workers and improves the processing and forming efficiency of parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is the overall front view of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the part processing limiting mechanism of the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of the parts taking mechanism of the present invention;

[0026] Figure 4 It is a schematic diagram of the structure of the clamping and transporting mechanism of the present invention;

[0027] Figure 5 It is a schematic diagram of the side structure of the clamping and transporting mechanism of the present invention;

[0028] Figure 6 The figure is a flowchart of the method steps of the present invention.

[0029] In the figure: 1. processing platform; 2. part processing limit mechanism; 3. part picking mechanism; 4. clamping and handling mechanism; 5. transportation platform; 6. fixed clamp block; 7. clamping cylinder; 8. limit hood; 9. telescopic rod; 10. servo motor; 11. lead screw; 12. motor assembly; 13. rotating shaft; 14. first moving track; 15. roller structure; 16. clamping plate; 17. fixed frame; 18. fixed slide rod; 19. lead screw slider; 20. forward and reverse motor; 21. rotating base; 22. second moving track; 23. fixed base; 24. manipulator; 25. clamping drive cylinder; 26. third rotating arm; 27. third motor; 28. second rotating arm; 29. ​​second motor; 30. first rotating arm; 31. first motor. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] See also Figure 1-6 An embodiment of the present invention is as follows: a clamping mechanism for a CNC machining center comprises a machining platform 1, on which a part machining limiting mechanism 2 and a part taking mechanism 3 are respectively installed, a clamping and transporting mechanism 4 is installed on one side of the machining platform 1, and a transportation platform 5 is installed on one side of the clamping and transporting mechanism 4, the part taking mechanism 3 is used to clamp and transport the parts and then send them to the part machining limiting mechanism 2, the part machining limiting mechanism 2 is used to clamp and lock the parts for processing, and the clamping and transporting mechanism 4 is used to clamp and send the processed parts to the transportation platform 5 for transportation and unloading.

[0032] Furthermore, the part processing limiting mechanism 2 includes a limiting machine cover 8, a clamping cylinder 7, a telescopic rod 9 and a fixed clamping block 6.

[0033] Furthermore, the limit hood 8 is fixed to the upper end surface of the processing base 1 by bolts, the clamping cylinder 7 is located inside the limit hood 8, the output end of the clamping cylinder 7 is fixedly connected to the fixed clamp block 6 by a telescopic rod 9, and the clamping cylinder 7 is evenly distributed at the four corners of the processing base 1.

[0034] Furthermore, a fixed frame 17 is installed on the part picking mechanism 3, and a servo motor 10 is installed on the top surface of the fixed frame 17. The output end of the servo motor 10 is connected to a screw 11 arranged at the front end of the fixed frame 17 through a rotating shaft, and a screw slider 19 is installed on the surface of the screw 11.

[0035] Furthermore, two fixed slide rods 18 are provided on the front end surface of the fixed frame 17, the interior of the lead screw slider 19 is connected to the fixed slide rod 18 through a slot, a motor assembly 12 is installed at the front end of the lead screw slider 19, and the output end of the motor assembly 12 is connected to the rotating base 21 through a rotating shaft 13.

[0036] Furthermore, a forward and reverse motor 20 is installed on the rotating base 21 , and an output end of the forward and reverse motor 20 is connected to a roller structure 15 via a rotating shaft.

[0037] Furthermore, a first movable track 14 is installed at the upper end of the roller structure 15, and a second movable track 22 is installed at the lower end of the roller structure 15. The front ends of the first movable track 14 and the second movable track 22 are welded and fixed with clamping plates 16. The first movable track 14 and the second movable track 22 make linear movements in opposite directions under the action of the roller structure 15.

[0038] Furthermore, a fixed base 23 is installed on the clamping and transporting mechanism 4, a first motor 31 is installed on the upper end of the fixed base 23, an output end of the first motor 31 is connected to the first rotating arm 30 via a rotating shaft, a second motor 29 is installed on the upper end of the first rotating arm 30, and an output end of the second motor 29 is connected to the second rotating arm 28 via a rotating shaft.

[0039] Furthermore, a third motor 27 is installed at the front end of the second rotating arm 28, and the output end of the third motor 27 is connected to the third rotating arm 26 through a rotating shaft. A clamping drive cylinder 25 is installed at the front end of the third rotating arm 26, and the output end of the clamping drive cylinder 25 is fixedly connected to the manipulator 24.

[0040] Working principle: When in use, the servo motor 10 is turned on to drive and adjust the installation height of the lead screw slider 19, and the motor assembly 12 is turned on to adjust the rotation angle of the rotating base 21. The forward and reverse motor 20 is turned on to drive and control the first movable rail 14 and the second movable rail 22 to make linear movements in opposite directions along the surface of the roller structure 15. The clamping plate 16 is used to clamp and fix the parts. The part picking mechanism 3 is used to clamp and transport the parts and send them to the part processing limit mechanism 2. The clamping cylinder 7 is used to drive and control the four fixed clamps 6 to clamp and lock the four side directions of the parts for processing. The first motor 31, the second motor 29 and the third motor 27 are turned on to control the corresponding rotating arms to adjust the clamping and transportation angle. After the angle is adjusted, the clamping drive cylinder 25 is turned on to control the manipulator 24 to transport the processed parts. The clamping and transportation mechanism 4 is used to clamp and transport the processed parts to the transportation platform 5 for transportation and unloading.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] The standard parts used in this application document can all be purchased from the market, and the specific connection methods of each part are connected by conventional means such as mature bolts, rivets, welding, etc. in the prior art. In addition, the machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, so no specific description is given here.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clamping mechanism for a CNC machining center, comprising a machining platform (1), characterized in that: The processing platform (1) is respectively provided with a part processing limiting mechanism (2) and a part taking mechanism (3); a clamping and transporting mechanism (4) is installed on one side of the processing platform (1); a transportation platform (5) is installed on one side of the clamping and transporting mechanism (4); the part taking mechanism (3) is used to clamp and transport the parts and then send them to the part processing limiting mechanism (2); the part processing limiting mechanism (2) is used to clamp and lock the parts and then perform processing operations; the clamping and transporting mechanism (4) is used to clamp and send the processed parts to the transportation platform (5) for transportation and discharge.

2. A clamping mechanism for a CNC machining center according to claim 1, characterized in that: The part processing limiting mechanism (2) comprises a limiting machine cover (8), a clamping cylinder (7), a telescopic rod (9) and a fixed clamping block (6).

3. A clamping mechanism for a CNC machining center according to claim 2, characterized in that: The limiter cover (8) is fixed to the upper surface of the processing platform (1) by bolts, the clamping cylinder (7) is located inside the limiter cover (8), the output end of the clamping cylinder (7) is fixedly connected to the fixed clamping block (6) by a telescopic rod (9), and the clamping cylinder (7) is evenly distributed at the four corners of the processing platform (1).

4. The clamping mechanism for a CNC machining center according to claim 1, characterized in that: A fixed frame (17) is installed on the part picking mechanism (3), a servo motor (10) is installed on the top surface of the fixed frame (17), an output end of the servo motor (10) is connected to a lead screw (11) arranged at the front end of the fixed frame (17) via a rotating shaft, and a lead screw slider (19) is installed on the surface of the lead screw (11).

5. A clamping mechanism for a CNC machining center according to claim 4, characterized in that: The front end surface of the fixed frame (17) is provided with two fixed slide rods (18), the interior of the lead screw slider (19) is connected to the fixed slide rods (18) via a slot, the front end of the lead screw slider (19) is installed with a motor assembly (12), and the output end of the motor assembly (12) is connected to a rotating base (21) via a rotating shaft (13).

6. A clamping mechanism for a CNC machining center according to claim 5, characterized in that: A forward and reverse motor (20) is installed on the rotating machine base (21), and an output end of the forward and reverse motor (20) is connected to a roller structure (15) via a rotating shaft.

7. A clamping mechanism for a CNC machining center according to claim 6, characterized in that: A first movable track (14) is installed at the upper end of the roller structure (15), and a second movable track (22) is installed at the lower end of the roller structure (15); front ends of the first movable track (14) and the second movable track (22) are both welded and fixed with a clamping plate (16); and the first movable track (14) and the second movable track (22) perform linear motion in opposite directions under the action of the roller structure (15).

8. The clamping mechanism for a CNC machining center according to claim 1, characterized in that: The clamping and transporting mechanism (4) is provided with a fixed base (23), the upper end of the fixed base (23) is provided with a first motor (31), the output end of the first motor (31) is connected to a first rotating arm (30) via a rotating shaft, the upper end of the first rotating arm (30) is provided with a second motor (29), and the output end of the second motor (29) is connected to a second rotating arm (28) via a rotating shaft.

9. A clamping mechanism for a CNC machining center according to claim 8, characterized in that: A third motor (27) is installed at the front end of the second rotating arm (28); the output end of the third motor (27) is connected to the third rotating arm (26) via a rotating shaft; a clamping drive cylinder (25) is installed at the front end of the third rotating arm (26); and the output end of the clamping drive cylinder (25) is fixedly connected to a manipulator (24).

10. A clamping method for a clamping mechanism of a CNC machining center, characterized in that: The method comprises the following steps: S1, turning on the servo motor (10) to drive and adjust the installation height of the lead screw slider (19), and then turning on the motor assembly (12) to adjust and control the rotation angle of the rotating base (21); S2, by turning on the forward and reverse motor (20), the first movable track (14) and the second movable track (22) can be driven to make linear movements in opposite directions along the surface of the roller structure (15), and the parts can be clamped and fixed by the clamping plate (16); S3, using the parts taking mechanism (3) to clamp and transport the parts and then send them to the parts processing limiting mechanism (2), and using the clamping cylinder (7) to drive and control the four fixed clamping blocks (6) to clamp and lock the four side directions of the parts for post-processing operations; S4, turning on the first motor (31), the second motor (29) and the third motor (27) to control the corresponding rotating arms to adjust the gripping and handling angle, and after the angle is adjusted, turning on the gripping drive cylinder (25) to control the manipulator (24) to carry the processed parts; S5. The clamping and transporting mechanism (4) is used to clamp the processed and formed parts and transport them to the transport platform (5) for transport and unloading.

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