Grabbing and feeding mechanism of CNC (computer numerical control) machining center

Abstract

The utility model relates to the technical field of CNC machining centers, in particular to a grabbing and feeding mechanism of a CNC machining center. A grabbing and feeding mechanism of a CNC machining center comprises a portal frame arranged in the X-axis direction and a machining platform arranged in the Y-axis direction, a clamping machine head translating in the X-axis direction is arranged on the portal frame, a rotating mechanism capable of ascending and descending in the Z-axis direction is arranged on the clamping machine head, and two pairs of symmetrically-arranged pneumatic clamping jaws are connected to the two sides of a rotating shaft of the rotating mechanism. A machining machine head translating in the Y-axis direction and a material frame arranged on the machining machine head are arranged on the machining platform. The idle running stroke is reduced, the equipment stability is enhanced, the service life is prolonged, and meanwhile the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of CNC machining center technology, specifically a CNC machining center gripping and feeding mechanism. Background Technology

[0002] In the operation of a CNC machining center, the workpiece gripping and feeding process is crucial. Traditional CNC machining center gripping and feeding mechanisms typically use a single pneumatic gripper for workpiece gripping and feeding. This method has significant drawbacks. After gripping a workpiece, it needs to return to the origin to grip a new workpiece, resulting in a long idle travel distance and low processing efficiency. Moreover, during operation, unbalanced loads can easily generate vibrations, which not only affect the stability of the equipment but also shorten its service life. Utility Model Content

[0003] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0004] A CNC machining center gripping and feeding mechanism includes a gantry frame arranged along the X-axis and a machining platform arranged along the Y-axis. The gantry frame is equipped with a clamping head that can translate along the X-axis. The clamping head is equipped with a rotating mechanism that can be raised and lowered along the Z-axis. Two pairs of symmetrically arranged pneumatic grippers are connected to both sides of the rotating shaft of the rotating mechanism. The machining platform is equipped with a machining head that translates along the Y-axis and a material rack set on the machining head.

[0005] Furthermore, the rotating mechanism's axis of rotation forms a 45° angle with the XY plane and is parallel to the YZ plane.

[0006] Furthermore, the rotating shaft of the rotating mechanism is fixedly connected to a mounting plate perpendicular to it, and two pairs of pneumatic grippers are symmetrically installed on both sides of the mounting plate.

[0007] Furthermore, the two pairs of pneumatic grippers are set perpendicular to each other.

[0008] Furthermore, the material rack is equipped with two trays of materials to be processed and two trays of materials already processed, arranged side by side along the X-axis.

[0009] Furthermore, a deflection drive motor is installed on the machining platform to drive the machining head to rotate in the XY plane.

[0010] Furthermore, the top of the gantry is equipped with an X-axis guide rail and an X-axis lead screw mechanism along the X-axis. An X-axis slide plate is provided on the X-axis guide rail and is driven to move by the X-axis lead screw mechanism. The clamping head is fixedly installed on the X-axis slide plate.

[0011] Furthermore, the machining platform is equipped with a Y-axis guide rail and a Y-axis lead screw mechanism along the Y-axis. A Y-axis slide plate is provided on the Y-axis guide rail and is driven to translate by the Y-axis lead screw mechanism. The machining head is mounted on the Y-axis slide plate.

[0012] Furthermore, the clamping head is equipped with a Z-axis guide rail and a Z-axis lead screw mechanism along the Z-axis. The Z-axis guide rail is equipped with a Z-axis slide plate that slides with it and is driven to rise and fall by the Z-axis lead screw mechanism. The rotating mechanism is fixedly installed on the Z-axis slide plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model adopts two pairs of symmetrical pneumatic grippers set on both sides of the rotating shaft of the rotating mechanism. While balancing the load on both sides of the rotating shaft, the two pneumatic grippers can alternately clamp the workpiece to be processed and the workpiece already processed, reducing the idle stroke, enhancing the stability of the equipment and extending its service life, while helping to improve work efficiency.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the clamping head structure in this utility model. Detailed Implementation

[0018] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] Please see Figures 1-2 The machine frame is mainly composed of a gantry frame 1 set along the X-axis and a machining platform 2 set along the Y-axis.

[0020] The top of the gantry frame 1 is equipped with an X-axis guide rail 3 extending along the X-axis and an X-axis lead screw mechanism 4. An X-axis slide plate 5 is slidably fitted on the X-axis guide rail 3. The X-axis lead screw mechanism 4 is connected to the X-axis slide plate 5 through its lead screw and nut pair. Driven by the X-axis motor, the X-axis lead screw rotates, causing the X-axis slide plate 5 to translate along the X-axis guide rail 3. The clamping head 6 is fixedly mounted on the X-axis slide plate 5, thereby realizing the translational movement of the clamping head 6 in the X-axis direction.

[0021] The clamping head 6 is equipped with a Z-axis guide rail 7 and a Z-axis lead screw mechanism 8 along the Z-axis. A Z-axis slide plate 9 is slidably fitted on the Z-axis guide rail 7. The Z-axis lead screw mechanism 8 is connected to the Z-axis slide plate 9 through its lead screw and nut pair. Driven by the Z-axis motor, the Z-axis lead screw rotates, causing the Z-axis slide plate 9 to rise and fall along the Z-axis guide rail 7, thereby realizing the rising and falling movement of the rotating mechanism 10 in the Z-axis direction.

[0022] The rotating mechanism 10 is a key component of this mechanism. Its rotating shaft forms a 45° angle with the XY plane and is parallel to the YZ plane. A mounting plate 11 perpendicular to the rotating shaft of the rotating mechanism 10 is fixedly connected to it. Two pairs of mutually perpendicular pneumatic grippers 12 are symmetrically mounted on both sides of the mounting plate 11. This unique structural design, on the one hand, balances the load on both sides of the rotating shaft, reducing vibration and wear during equipment operation, enhancing equipment stability, and extending service life; on the other hand, by having the two pneumatic grippers 12 alternately clamp the workpiece to be processed and the processed workpiece, the idle travel is effectively reduced, improving work efficiency.

[0023] The machining platform 2 is equipped with a Y-axis guide rail 13 and a Y-axis lead screw mechanism 14 along the Y-axis. A Y-axis slide plate 15 is slidably fitted onto the Y-axis guide rail 13. The Y-axis lead screw mechanism 14 is connected to the Y-axis slide plate 15 through its lead screw and nut pair. Driven by the Y-axis motor, the rotation of the Y-axis lead screw drives the Y-axis slide plate 15 to translate along the Y-axis guide rail 13. The machining head 16 is mounted on the Y-axis slide plate 15, enabling the machining head 16 to translate in the Y-axis direction. Simultaneously, a deflection drive motor 17 is also installed on the machining platform 2 to drive the machining head 16 to rotate in the XY plane to meet the requirements of different machining angles.

[0024] A material rack 18 is mounted on the machining head 16, and two workpiece trays 19 and 20 are arranged side-by-side along the X-axis on the material rack 18. Before machining begins, the machining head 16 is first moved forward along the Y-axis to a suitable position. At this time, the clamping head 6 moves in the XZ plane, causing the pneumatic grippers 12 on the rotating mechanism 10 to approach the material rack 18. After one pair of pneumatic grippers 12 clamps a workpiece to be processed, the rotating mechanism 10 rotates 180°, causing the other pair of pneumatic grippers 12 to approach the material rack 18 and clamp another workpiece to be processed. Subsequently, the clamping head 6 delivers the clamped workpiece to the machining head 16 to begin processing the previously clamped workpiece. After the workpiece is processed, the clamping head 6 is lifted, and the rotating mechanism 10 rotates 180° to send the processed workpiece back to the processed material tray 20 on the material rack 18 to execute the feeding program. Then, a new workpiece to be processed is clamped, and the workpiece that was clamped but not processed is processed. This process is repeated to complete the entire processing and feeding process.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A CNC machining center grabbing feeding mechanism comprising a portal frame arranged in X direction and a machining platform arranged in Y direction, characterized in that, The gantry is provided with a clamping head which translates along the X-axis, the clamping head is provided with a rotating mechanism which can lift along the Z-axis, two pairs of symmetrical pneumatic clamps are connected to the rotating mechanism, the machining platform is provided with a machining head which translates along the Y-axis and a material rack which is arranged on the machining head.

2. The CNC machining center grabbing and feeding mechanism according to claim 1, characterized in that, The rotating shaft of the rotating mechanism forms a 45° angle with the XY plane and is parallel to the YZ plane.

3. The grabbing feeding mechanism of CNC machining center according to claim 1 or 2, characterized in that, The rotating shaft of the rotating mechanism is fixedly connected with a mounting plate which is perpendicular to the rotating shaft, and the two pairs of pneumatic clamps are symmetrically arranged on the two sides of the mounting plate.

4. The grabbing feeding mechanism of CNC machining center according to claim 1 or 2, characterized in that, The two pairs of pneumatic clamps are arranged perpendicularly.

5. The CNC machining center pick-and-place feeding mechanism according to claim 1, wherein, The material rack is provided with a to-be-processed tray and a processed tray which are arranged side by side along the X-axis.

6. The CNC machining center pick-and-place feed mechanism of claim 1, wherein, The machining platform is provided with a deflection driving motor which drives the machining head to rotate on the XY plane.

7. The CNC machining center pick-and-place feed mechanism of claim 1, wherein, The top of the gantry is provided with an X-axis guide rail and an X-axis screw mechanism which are arranged along the X-axis, the X-axis guide rail is provided with an X-axis sliding plate which is in sliding cooperation with the X-axis guide rail and is driven to translate by the X-axis screw mechanism, and the clamping head is fixedly arranged on the X-axis sliding plate.

8. The CNC machining center pick-and-place feed mechanism of claim 1, wherein, The machining platform is provided with a Y-axis guide rail and a Y-axis screw mechanism which are arranged along the Y-axis, the Y-axis guide rail is provided with a Y-axis sliding plate which is in sliding cooperation with the Y-axis guide rail and is driven to translate by the Y-axis screw mechanism, and the machining head is arranged on the Y-axis sliding plate.

9. The CNC machining center pick-and-place feed mechanism of claim 1, wherein, The clamping head is provided with a Z-axis guide rail and a Z-axis screw mechanism which are arranged along the Z-axis, the Z-axis guide rail is provided with a Z-axis sliding plate which is in sliding cooperation with the Z-axis guide rail and is driven to lift by the Z-axis screw mechanism, and the rotating mechanism is fixedly arranged on the Z-axis sliding plate.

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