Cutter grabbing mechanism

Abstract

The utility model discloses a cutter grabbing mechanism which comprises an installation bottom plate, two linear guide rails are distributed on the installation bottom plate, a rotor sliding block is arranged on the linear guide rails, one face of the rotor sliding block is fixedly connected with a sliding plate, and a plurality of clamping jaw mechanisms are installed at the lower end of the sliding plate. A switching bottom plate is mounted at the upper end of the mounting bottom plate, a driving motor and a synchronous belt-synchronous wheel device mounted in cooperation with the driving motor are mounted on the switching bottom plate, and the synchronous belt-synchronous wheel device is connected with the Z-axis lead screw in a matched mode. The Z-axis lead screw is used for driving the sliding plate to ascend and descend. The clamping jaw mechanism has the advantages that the sliding plate capable of sliding up and down in a controllable mode is assembled, and the six clamping jaw mechanisms are arranged in parallel; through the ingenious design, the clamping action of the cutter can be automatically, accurately and efficiently completed, manual operation is replaced, the grabbing efficiency is greatly improved, and time and labor cost are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a tool grabbing mechanism. Background Art

[0002] In the CNC machining process, the installation and replacement of tools is a very important step. In the existing technology, it mainly relies on manual labor to remove the tools from the tool magazine and install them on the spindle as needed. However, this tool changing method can usually only replace one tool at a time, and the tool changing efficiency is low. In addition, although some mobile devices for transferring tools between different devices have appeared in the existing technology, the tool removal position is often inaccurate, or the tool is not firmly grasped and falls off, which makes it difficult to meet the needs of modern mechanical processing production in enterprises. Utility Model Content

[0003] (1) Problems to be solved

[0004] The technical problem to be solved by the utility model is to provide a tool grabbing mechanism in view of the current status of the existing technology.

[0005] (2) Technical solution

[0006] The utility model is implemented through the following technical solution: It proposes a tool gripping mechanism comprising a mounting base plate, two linear guide rails arranged in a distributed pattern on the mounting base plate, a movable slider disposed on the linear guide rail, one side of the movable slider being fixedly connected to a sliding plate, and a plurality of gripping mechanisms mounted on the lower end of the sliding plate. An adapter base plate is mounted on the upper end of the mounting base plate, and a drive motor and a synchronous belt and synchronous pulley assembly mounted in conjunction with the drive motor are mounted on the adapter base plate. The synchronous belt and synchronous pulley assembly is coupled to a Z-axis screw. The Z-axis screw is used to drive the sliding plate to move up and down.

[0007] Using this technical solution, when clamping a tool, an induction switch first detects the presence of a tool below. Once the tool is confirmed, the clamping cylinder opens the jaws, and the drive motor drives the synchronous belt and synchronous pulley assembly, which in turn moves the Z-axis screw. This movement of the Z-axis screw then lowers the slide plate, and the clamping mechanism attached to the slide plate also lowers. When the clamping mechanism reaches the desired height, the clamping cylinder retracts the jaws, allowing the inner surface of the gripping portion to engage and lock with the upper portion of the tool handle. The slide plate then lifts upward to remove the tool.

[0008] Furthermore, a Z-axis nut seat is mounted on the upper end surface of the sliding plate, and a nut is fixed to the Z-axis nut seat. The Z-axis screw rod is connected with the nut. When the driving motor drives the Z-axis screw rod to move, the Z-axis screw rod drives the sliding plate to move up and down, and the clamping mechanism also moves up and down accordingly.

[0009] Furthermore, six clamping mechanisms are arranged at intervals at the lower end of the sliding plate, and the clamping claws of the clamping mechanisms are suspended below the front end surface of the sliding plate.

[0010] Furthermore, the clamping mechanism includes a clamping mounting seat connected to the sliding plate, and a clamping cylinder is installed on the clamping mounting seat.

[0011] Furthermore, the inner side surface of the gripping portion of the clamping mechanism is provided with an arc surface that matches the shape of the upper portion of the tool handle.

[0012] Furthermore, the clamping jaw mounting base is connected to a sensor bracket, and the sensor bracket is equipped with a sensor switch arranged between the clamping jaws. The sensor switch is used to detect whether there is a tool to be grasped below.

[0013] Furthermore, the gripper cylinder is equipped with a throttle valve.

[0014] (3) Beneficial effects

[0015] This utility model is equipped with a sliding plate that can slide up and down controllably and arranges 6 clamping claw mechanisms in parallel. Through clever design, a few simple devices cooperate with each other to automatically, accurately and efficiently complete the tool clamping action. The action is highly accurate, replacing manual work, and will not affect the installation accuracy of the subsequent tool installation process. It not only greatly improves the grasping efficiency, but also saves time and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0017] Figure 1 This is a front view of a tool grabbing mechanism described in the utility model;

[0018] Figure 2 It is a front view and a stereoscopic view of a tool grabbing mechanism described in the utility model;

[0019] Figure 3 This is a three-dimensional diagram of the clamping mechanism in the tool grasping mechanism of the utility model (1);

[0020] Figure 4 This is a three-dimensional diagram of the clamping mechanism in the tool gripping mechanism of the utility model (II);

[0021] The reference numerals are as follows:

[0022] 1. Mounting base; 2. Linear guide rail; 3. Mover slider; 4. Slide plate; 5. Gripper mechanism; 6. Adapter base; 7. Drive motor; 8. Synchronous belt-synchronous pulley device; 9. Z-axis screw rod; 10. Z-axis nut seat; 11. Nut; 12. Gripper; 13. Front end face; 14. Gripper mounting seat; 15. Gripper cylinder; 16. Gripper grasping part; 17. Arc joint surface; 18. Sensor bracket; 19. Sensor switch; 20. Throttle valve. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0024] In the description of this application, it should be understood that the terms "thickness", "up", "down", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0025] See also Figure 1-Figure 3 The utility model provides a technical solution: comprising a mounting base (1), two linear guide rails (2) are distributed and arranged on the mounting base (1), a movable slider (3) is provided on the linear guide rail (2), one side of the movable slider (3) is connected and fixed to a sliding plate (4), and a plurality of clamping claw mechanisms (5) are installed at the lower end of the sliding plate (4). A transfer base (6) is installed at the upper end of the mounting base (1), a driving motor (7) and a synchronous belt-synchronous wheel device (8) installed in conjunction with the driving motor (7) are installed on the transfer base (6), and the synchronous belt-synchronous wheel device (8) is connected in conjunction with a Z-axis screw rod (9). The Z-axis screw rod (9) is used to drive the sliding plate (4) to move up and down. When clamping a tool, the induction switch (19) first detects whether there is a tool below. After confirming that a tool is to be clamped, the clamping cylinder (15) opens the clamping jaws (12), and the drive motor (7) drives the synchronous belt-synchronous wheel device (8) and drives the Z-axis screw (9) to move. The movement of the Z-axis screw (9) then drives the sliding plate (4) to descend, and the clamping jaw mechanism (5) fixed on the sliding plate (4) also descends. When the clamping jaw mechanism (5) descends to a predetermined height, the clamping jaw cylinder (15) retracts the two clamping jaws (12) so that the inner surface of the clamping jaw grasping portion (16) fits and locks with the upper part of the tool handle, and then the sliding plate (4) is lifted upward to remove the tool.

[0026] Preferably, a Z-axis nut seat (10) is installed on the upper end surface of the sliding plate (4), and a nut (11) is fixed to the Z-axis nut seat (10). The Z-axis screw rod (9) is connected with the nut (11). When the driving motor (7) drives the Z-axis screw rod (9) to move through the synchronous belt-synchronous wheel device (8), the Z-axis screw rod (9) drives the sliding plate (4) to move up and down, and the clamping claw mechanism (5) also moves up and down accordingly.

[0027] Preferably, six clamping mechanisms (5) are arranged at intervals at the lower end of the sliding plate (4), and the clamping claws (12) of the clamping mechanism (5) are suspended below the front end surface (13) of the sliding plate (4). The six clamping mechanisms (5) move simultaneously with one sliding plate (4), and can grasp and transfer six tools at a time, thereby achieving high working efficiency.

[0028] Preferably, the clamping mechanism (5) includes a clamping mounting seat (14) connected to the sliding plate (4), and a clamping cylinder (15) is installed on the clamping mounting seat (14).

[0029] Preferably, the inner side surface of the clamping claw grasping portion (16) of the clamping claw mechanism (5) is provided with an arc surface (17) that matches the shape of the upper portion of the tool handle. When grasping the tool, the clamping claw (12) is opened, the clamping claw mechanism (5) moves downward, and the clamping claw (12) retracts after moving a predetermined distance. The grasping portion on the tool is fitted and locked with the arc surface (17), and the clamping claw mechanism (5) moves to grasp the tool.

[0030] Preferably, the clamping jaw mounting base (14) is connected to a sensor bracket (18), and the sensor bracket (18) is equipped with a sensor switch (19) arranged between the clamping jaws (12). The sensor switch (19) is used to detect whether there is a tool to be grasped below.

[0031] Preferably, the gripper cylinder (15) is equipped with a throttle valve (20). The throttle valve (20) is used to regulate the extension and contraction speed of the gripper cylinder (15).

[0032] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tool grabbing mechanism, characterized in that: The invention comprises a mounting base plate (1), two linear guide rails (2) are distributed and arranged on the mounting base plate (1), a movable slider (3) is provided on the linear guide rail (2), one side of the movable slider (3) is connected and fixed to a sliding plate (4), and a plurality of clamping claw mechanisms (5) are installed at the lower end of the sliding plate (4); a transfer base plate (6) is installed at the upper end of the mounting base plate (1), a driving motor (7) and a synchronous belt-synchronous wheel device (8) installed in conjunction with the driving motor (7) are installed on the transfer base plate (6), and the synchronous belt-synchronous wheel device (8) is connected in conjunction with a Z-axis screw rod (9); the Z-axis screw rod (9) is used to drive the sliding plate (4) to move up and down.

2. A tool gripping mechanism according to claim 1, characterized in that: The upper end surface of the sliding plate (4) is provided with a Z-axis nut seat (10), and a nut (11) is fixed to the Z-axis nut seat (10); the Z-axis screw rod (9) is cooperatively connected with the nut (11); when the driving motor (7) drives the Z-axis screw rod (9) to move, the Z-axis screw rod (9) drives the sliding plate (4) to move up and down, and the clamping mechanism (5) also moves up and down accordingly.

3. The tool gripping mechanism according to claim 1, characterized in that: Six clamping mechanisms (5) are arranged at intervals at the lower end of the sliding plate (4), and the clamping claws (12) of the clamping claw mechanisms (5) are suspended below the front end surface (13) of the sliding plate (4).

4. The tool gripping mechanism according to claim 1, characterized in that: The clamping mechanism (5) includes a clamping mounting seat (14) connected to and mounted on the sliding plate (4), and a clamping cylinder (15) is mounted on the clamping mounting seat (14).

5. The tool gripping mechanism according to claim 4, characterized in that: The inner side surface of the clamping claw grasping portion (16) of the clamping claw mechanism (5) is provided with an arcuate engaging surface (17) that matches the shape of the upper portion of the knife handle.

6. The tool gripping mechanism according to claim 4, characterized in that: The clamping jaw mounting seat (14) is connected to a sensor bracket (18), and the sensor bracket (18) is equipped with a sensor switch (19) arranged between the clamping jaws (12); the sensor switch (19) is used to detect whether there is a tool to be grasped below.

7. The tool gripping mechanism according to claim 4, characterized in that: The clamping jaw cylinder (15) is equipped with a throttle valve (20).

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