Automatic feeding device of numerical control machine tool

Abstract

The utility model belongs to the technical field of automatic feeding of numerical control machine tools, and particularly relates to an automatic feeding device of a numerical control machine tool, which comprises a movable base, a connecting plate is fixedly connected to the upper end of the movable base, and a U-shaped block is fixedly connected to the upper end of the connecting plate. Two first supporting plates which are correspondingly arranged left and right are fixedly connected to the upper end of the movable base, a two-way threaded rod is jointly and rotationally connected between the two first supporting plates, and the two-way threaded rod is sleeved with two movable blocks in a threaded mode; the two moving blocks are arranged on the two parts, opposite in thread rotating direction, of the two-way threaded rod in a threaded and sleeving mode correspondingly. By means of the feeding device, the cylindrical machined parts can be sequentially fed into the numerical control machine tool to be machined, the cylindrical machined parts are clamped and fixed in the feeding process to prevent the cylindrical machined parts from rolling and floating to affect grabbing of a mechanical arm, and the machining quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic feeding of numerically controlled machine tools, in particular to an automatic feeding device of a numerically controlled machine tool. Background Art

[0002] A numerically controlled machine tool (CNC) is a machine tool that uses digital programs to control the machining process. Computer programs (usually G-codes and M-codes) control the machine's motion trajectory, feed rate, spindle speed, and other parameters, enabling complex shapes and high-precision machining.

[0003] In modern factories, automatic feeding devices are usually used to feed workpieces into CNC machine tools for processing. However, when existing automatic feeding devices feed cylindrical workpieces, the cylindrical workpieces will roll when they are driven to move, resulting in positional offset, which may cause the robot in the CNC machine tool to fail to grasp the workpiece, thereby affecting processing efficiency.

[0004] Therefore, we propose an automatic feeding device for CNC machine tools to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an automatic feeding device for a CNC machine tool.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] The cam is connected to the upper end of the U-shaped block, and the upper end of the U-shaped block is connected to the upper end of the U-shaped block. The cam is connected to the upper end of the U-shaped block by the first support plate and the second support plate. The two first support plates are connected to each other by a two-way threaded rod. The two moving blocks are threadedly sleeved on the two-way threaded rod. The two moving blocks are respectively threadedly sleeved on the two parts of the two-way threaded rod with opposite threads. The ends of the two moving blocks close to each other are fixedly connected to a sliding rod. The two sliding rods respectively pass through the left and right ends of the U-shaped block and are slidably connected thereto. The ends of the two sliding rods close to each other are fixedly connected to a splint.

[0008] Preferably, a first gear is fixedly sleeved on the bidirectional threaded rod, and the upper end of the movable base is fixedly connected to two second support plates correspondingly arranged on the left and right, and a rotating rod is connected and rotated together between the two second support plates, and a second gear is fixedly sleeved on the rotating rod, and the second gear is engaged with the first gear, and a motor that drives the rotating rod to rotate is fixedly installed on one end of one of the second support plates away from the other second support plate.

[0009] Preferably, an interval feeding mechanism is provided at the rear of the movable base, and the interval feeding mechanism includes a first sliding platform, a second sliding platform is provided at the rear of the first sliding platform, and a telescopic cylinder with the telescopic end facing upward is provided between the first sliding platform and the second sliding platform, and the telescopic end of the telescopic cylinder is fixedly connected to a lifting platform.

[0010] Preferably, a baffle is fixedly connected to the front end of the U-shaped block.

[0011] Preferably, an electric slide rail is provided at the lower end of the movable base, and the movable base is slidably connected to the electric slide rail.

[0012] Preferably, the two clamping plates are made of rubber.

[0013] Compared with existing technologies, the advantages of this device are:

[0014] The lifting platform is controlled by a telescopic cylinder to raise and lower the cylindrical workpieces at intervals into the U-shaped block. The cylindrical workpieces fed into the U-shaped block are pressed against the baffle and clamped together by two clamping plates. The electric slide rail drives the mobile base to move into the CNC machine tool. During the feeding process, the cylindrical workpieces are clamped and fixed to prevent them from rolling and floating and affecting the grasping of the robot, thereby improving the processing quality.

[0015] In summary, this device can be used to feed cylindrical workpieces into the CNC machine tool for processing in sequence, and the cylindrical workpieces can be clamped and fixed during the feeding process to prevent them from rolling and floating and affecting the grasping of the robot, thereby improving the processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional diagram of an automatic feeding device for a CNC machine tool proposed in the present utility model;

[0017] Figure 2 This is a partial perspective view of an automatic feeding device for a CNC machine tool proposed in the present invention;

[0018] Figure 3 This is a three-dimensional diagram of the intermediate feeding mechanism in the automatic feeding device of a CNC machine tool proposed by the utility model.

[0019] In the figure: 1 movable base, 2 connecting plate, 3 U-shaped block, 4 first support plate, 5 bidirectional threaded rod, 6 movable block, 7 sliding rod, 8 clamping plate, 9 first gear, 10 second support plate, 11 rotating rod, 12 second gear, 13 motor, 14 electric slide rail, 15 baffle, 16 first sliding platform, 17 second sliding platform, 18 telescopic cylinder, 19 lifting platform. DETAILED DESCRIPTION

[0020] 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.

[0021] Reference Figure 1-Figure 3 The two sliding rods 7 are respectively threadedly sleeved on the two parts of the two-way threaded rod 5 with opposite threads, and the ends of the two moving blocks 6 that are close to each other are fixedly connected to a sliding rod 7. The two sliding rods 7 respectively pass through the left and right ends of the U-shaped block 3 and are slidably connected therewith. The ends of the two sliding rods 7 that are close to each other are fixedly connected to a clamping plate 8. When the two-way threaded rod 5 rotates, the two moving blocks 6 can move closer to or away from each other axially under the limit of the two sliding rods 7, and at the same time drive the two clamping plates 8 to move closer to or away from each other axially.

[0022] A first gear 9 is fixedly sleeved on the bidirectional threaded rod 5, and the upper end of the mobile base 1 is fixedly connected to two second support plates 10 correspondingly arranged on the left and right. A rotating rod 11 is connected to the two second support plates 10 for common rotation, and a second gear 12 is fixedly sleeved on the rotating rod 11. The second gear 12 is engaged with the first gear 9. A motor 13 for driving the rotating rod 11 to rotate is fixedly installed on one end of one second support plate 10 away from the other second support plate 10. The rotating rod 11 is driven to rotate by the motor 13, and the rotating rod 11 drives the second gear 12 to rotate. The second gear 12 drives the first gear 9 to rotate, and the first gear 9 drives the bidirectional threaded rod 5 to rotate.

[0023] An interval feeding mechanism is provided at the rear of the movable base 1, and the interval feeding mechanism includes a first sliding table 16, and a second sliding table 17 is provided at the rear of the first sliding table 16. A telescopic cylinder 18 with a telescopic end facing upward is provided between the first sliding table 16 and the second sliding table 17, and the telescopic end of the telescopic cylinder 18 is fixedly connected to a lifting platform 19. The upper ends of the first sliding table 16, the second sliding table 17 and the lifting platform 19 are all inclined surfaces tilted forward. In the initial state, the upper end of the lifting platform 19 and the upper end of the second sliding table 17 are connected to form an inclined surface, and the cylindrical workpiece is placed in the upper end of the second sliding table 17. The cylindrical workpiece rolls forward along the inclined surface at a time, and the frontmost cylindrical workpiece is located at the upper end of the lifting platform 19 and rests against the first sliding table 16. At the rear end, the telescopic end of the telescopic cylinder 18 drives the lifting platform 19 to rise, driving the cylindrical workpiece located at the upper end of the lifting platform 19 to rise. At this time, the cylindrical workpiece at the rear end of the front cylindrical workpiece presses against the rear end of the lifting platform 19. When the lifting platform 19 rises to the upper end and is connected with the upper end of the first slide platform 16, the cylindrical workpiece located on the lifting platform 19 rolls along the inclined surface and rolls into the U-shaped block 3 through the upper end of the first slide platform 16. The lifting platform 19 is lowered to its initial state by the contraction of the telescopic end of the telescopic cylinder 18. At this time, the cylindrical workpiece pressing against its rear end rolls to the upper end of the lifting platform 19 and presses against the rear end of the first slide platform 16. The lifting platform 19 is controlled to rise and fall by the telescopic cylinder 18, thereby sending the cylindrical workpieces into the U-shaped block 3 at intervals.

[0024] The front end of the U-shaped block 3 is fixedly connected to a baffle 15. The cylindrical workpiece fed into the U-shaped block 3 is pressed against the baffle 15 and is clamped close to each other by two clamps 8. The two clamps 8 are made of rubber and have high friction to prevent the cylindrical workpiece from slipping. An electric slide rail 14 is provided at the lower end of the movable base 1. The movable base 1 is slidably connected to the electric slide rail 14. The electric slide rail 14 drives the movable base 1 to move into the CNC machine tool. The two clamps 8 move away from each other to release the cylindrical workpiece, and the cylindrical workpiece is grabbed by the manipulator in the CNC machine tool for processing.

[0025] When using the present invention, the cylindrical workpiece is placed on the upper end of the second slide table 17, and the cylindrical workpiece rolls forward along the inclined plane at one time, and the frontmost cylindrical workpiece is located at the upper end of the lifting platform 19 and against the rear end of the first slide table 16. The lifting platform 19 is controlled to rise and fall by the telescopic cylinder 18, so that the cylindrical workpiece is sent into the U-shaped block 3 at intervals. The cylindrical workpiece sent into the U-shaped block 3 is against the baffle 15 and is clamped close to each other by the two clamps 8. The electric slide rail 14 drives the movable base 1 to move into the CNC machine tool, and the two clamps 8 move away from each other to release the cylindrical workpiece. The cylindrical workpiece is grabbed by the manipulator in the CNC machine tool for processing. Through this device, the cylindrical workpieces can be sent into the CNC machine tool for processing in turn, and the cylindrical workpieces are clamped and fixed during the feeding process to prevent them from rolling and floating and affecting the grasping of the manipulator, thereby improving the processing quality.

[0026] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic feeding device for a CNC machine tool, comprising a movable base (1), characterized in that: The upper end of the movable base (1) is fixedly connected to a connecting plate (2), the upper end of the connecting plate (2) is fixedly connected to a U-shaped block (3), the upper end of the movable base (1) is fixedly connected to two first support plates (4) arranged correspondingly on the left and right, a bidirectional threaded rod (5) is rotatably connected between the two first support plates (4), two movable blocks (6) are threadedly sleeved on the bidirectional threaded rod (5), the two movable blocks (6) are respectively threadedly sleeved on two parts of the bidirectional threaded rod (5) with opposite thread rotation directions, the ends of the two movable blocks (6) close to each other are fixedly connected to a sliding rod (7), the two sliding rods (7) respectively penetrate the left and right ends of the U-shaped block (3) and are slidably connected thereto, and the ends of the two sliding rods (7) close to each other are fixedly connected to a clamping plate (8).

2. The automatic feeding device for a CNC machine tool according to claim 1, characterized in that: A first gear (9) is fixedly sleeved on the bidirectional threaded rod (5); the upper end of the mobile base (1) is fixedly connected to two second support plates (10) correspondingly arranged on the left and right; a rotating rod (11) is connected to the two second support plates (10) for common rotation; a second gear (12) is fixedly sleeved on the rotating rod (11); the second gear (12) is meshed with the first gear (9); a motor (13) for driving the rotating rod (11) to rotate is fixedly mounted on one end of one of the second support plates (10) away from the other second support plate (10).

3. The automatic feeding device for a CNC machine tool according to claim 1, characterized in that: An interval feeding mechanism is provided at the rear of the movable base (1), and the interval feeding mechanism includes a first sliding platform (16), a second sliding platform (17) is provided at the rear of the first sliding platform (16), and a telescopic cylinder (18) with its telescopic end facing upward is provided between the first sliding platform (16) and the second sliding platform (17), and the telescopic end of the telescopic cylinder (18) is fixedly connected to a lifting platform (19).

4. The automatic feeding device for a CNC machine tool according to claim 1, characterized in that: A baffle (15) is fixedly connected to the front end of the U-shaped block (3).

5. The automatic feeding device for a CNC machine tool according to claim 1, characterized in that: An electric slide rail (14) is provided at the lower end of the movable base (1), and the movable base (1) is slidably connected to the electric slide rail (14).

6. The automatic feeding device for a CNC machine tool according to claim 1, characterized in that: The two clamping plates (8) are made of rubber.

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