Anti-vibration clamp tool for numerical control machine tool

Abstract

The utility model relates to the technical field of numerical control machine tools, and discloses an anti-vibration clamp tool for a numerical control machine tool, which comprises a clamp shell, a connecting frame is fixedly connected to the front side of the clamp shell, and a plurality of connecting blocks and a plurality of lengthened connecting blocks are slidably connected in the connecting frame. The multiple connecting blocks and the multiple lengthened connecting blocks are slidably connected to the interior of the clamp shell, the front sides of the connecting blocks and the front sides of the lengthened connecting blocks are fixedly connected with first mounting shells, second mounting shells are mounted at the bottoms of the first mounting shells, and clamping plates are fixedly connected to the lower portions of the second mounting shells. And the bottom of the clamping plate is fixedly connected with a shock pad. According to the clamping device, through cooperation of the rotating block, the fixing shell, the control panel and the tension spring telescopic rod, the clamping plate conforming to the appearance of a workpiece is rapidly installed, the damping pad is matched, the contact area with the workpiece is increased, vibration of the workpiece during working is reduced, and the machining precision is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machine tools, in particular to an anti-seismic fixture tool for numerical control machine tools. Background Art

[0002] In modern manufacturing, CNC machine tools are widely used to process high-precision parts, such as parts in the aerospace field, whose processing accuracy is required to reach the micron or even sub-micron level. Traditional fixtures and tooling are easily affected by factors such as cutting force and vibration during the processing, which can easily cause the workpiece to move or vibrate, thus failing to meet the requirements of high-precision processing. In addition, with the continuous development of high-speed cutting technology, the cutting speed and feed rate continue to increase. Although this greatly improves the processing efficiency, it also brings stronger cutting vibration. At this time, if the vibration generated by the cutting force cannot be effectively suppressed by the fixture, it will produce chatter marks on the workpiece surface, reducing the surface quality.

[0003] The existing seismic fixture tooling of CNC machine tools consists of a chuck body, multiple jaws, a connecting structure and other components. The chuck body is the basic component, and the jaws are installed on the chuck body through the connecting structure. Before use, the fixture is installed and fixed on the CNC machine tool, and the workpiece to be clamped is placed between the jaws. The movement of the jaws is controlled to fix the workpiece.

[0004] The existing anti-vibration fixtures of CNC machine tools can complete basic clamping work, but the contact area between the jaws and the workpiece is insufficient. During high-speed processing, strong vibrations will still be generated, which will affect the processing accuracy and aggravate the wear of the tool. Therefore, a anti-vibration fixture for CNC machine tools is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a seismic clamp tooling for CNC machine tools, aiming to improve the problem in the existing technology that effective vibration reduction cannot be performed, machining accuracy is affected, and tool wear is aggravated.

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

[0007] A seismic fixture for a CNC machine tool comprises a fixture shell, a connecting frame fixedly connected to the front side of the fixture shell, a plurality of connecting blocks and a plurality of elongated connecting blocks slidably connected to the interior of the connecting frame, the plurality of connecting blocks and the plurality of elongated connecting blocks are slidably connected to the interior of the fixture shell, the connecting blocks and the front sides of the elongated connecting blocks are fixedly connected to a mounting shell 1, a mounting shell 2 is mounted on the bottom of the mounting shell 1, a clamping plate is fixedly connected to the bottom of the mounting shell 2, a shock-absorbing pad is fixedly connected to the bottom of the clamping plate, and a docking assembly is installed inside the mounting shell 1 and the mounting shell 2 for quickly installing and replacing different types of clamping plates;

[0008] As a further description of the above technical solution:

[0009] The connecting frame is provided with a slide groove, and the connecting block and the extended connecting block are slidably connected to the inside of the slide groove;

[0010] As a further description of the above technical solution:

[0011] The docking assembly includes two fixed shells, the two fixed shells are respectively fixedly connected to the interior of the first mounting shell and the second mounting shell, the interior of each of the two fixed shells is rotatably connected to a rotating block, the sides of each of the two rotating blocks are fixedly connected to a control board, the sides of each of the two control boards are rotatably connected to a tension spring telescopic rod, and the two tension spring telescopic rods are respectively rotatably connected to the inner walls of the first mounting shell and the second mounting shell;

[0012] As a further description of the above technical solution:

[0013] The sides of the first mounting shell and the second mounting shell are both provided with limiting grooves, and the control board is slidably connected to the inside of the limiting grooves;

[0014] As a further description of the above technical solution:

[0015] A rotation slot is provided inside the fixed shell, and the rotation block is rotatably connected to the inside of the rotation slot;

[0016] As a further description of the above technical solution:

[0017] The interior of the clamp shell is rotatably connected to a connecting piece, the front side of the connecting piece is fixedly connected to a connecting column, and the front side of the connecting column is rotatably connected to the interior of the connecting frame;

[0018] As a further description of the above technical solution:

[0019] The outer periphery of the connecting column is fixedly connected to a gear 1, and the bottom of the connecting block is fixedly connected to a rack, and the rack and the gear 1 are meshed with each other;

[0020] As a further description of the above technical solution:

[0021] The outer periphery of the connecting column is fixedly connected to the second gear, and the bottom of the extended connecting block is fixedly connected to the rack, and the rack and the second gear are meshed with each other.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the present invention, with the cooperation of the connecting block, the connecting frame and the slide groove, the clamping plate under the mounting shell can move in and out of the track of the slide groove. The clamping plate is used to conform to the shape of the workpiece to be processed, thereby increasing the area of clamping control. The vibration generated by the workpiece during operation is reduced by the cooperation of the shock-absorbing pad, thereby ensuring the processing accuracy.

[0024] 2. In the present invention, the second mounting shell is slid into the first mounting shell, and the rotating block is rotated to be clamped into the rotating groove of the fixed shell, so that the second mounting shell cannot be separated from the first mounting shell. The tension spring telescopic rod is used in conjunction with the control board to ensure the rotation position of the rotating block, thereby realizing the rapid installation of the clamping plate and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of a seismic-resistant fixture for CNC machine tools proposed by the present invention;

[0026] Figure 2 This is a cross-sectional schematic diagram of a docking assembly of a seismic-resistant fixture for a CNC machine tool proposed by the present invention;

[0027] Figure 3 This is a cross-sectional schematic diagram of a mounting shell of a seismic-resistant fixture for a CNC machine tool proposed in the present invention;

[0028] Figure 4 This is a schematic diagram of the internal structure of a seismic fixture for CNC machine tools proposed by the present invention;

[0029] Figure 5 The utility model is a structural schematic diagram of a clamping mechanism of a seismic-resistant fixture for a CNC machine tool.

[0030] Legend:

[0031] 1. Connecting frame; 2. Connecting block; 3. Slide; 4. Mounting shell 1; 5. Mounting shell 2; 6. Clamping plate; 7. Shock-absorbing pad; 8. Fixed shell; 9. Rotating block; 10. Control board; 11. Extension spring telescopic rod; 12. Limiting slot; 13. Clamp shell; 14. Connecting piece; 15. Connecting column; 16. Gear 1; 17. Gear 2; 18. Rack; 19. Rotating slot; 20. Extended connecting block. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention 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 the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Reference Figure 1 and Figure 4 The present invention provides an embodiment of a seismic fixture for a numerically controlled machine tool, comprising a fixture shell 13, a connecting frame 1 being fixedly connected to the front side of the fixture shell 13, a plurality of connecting blocks 2 and a plurality of extended connecting blocks 20 being slidably connected to the interior of the connecting frame 1, the plurality of connecting blocks 2 and the plurality of extended connecting blocks 20 being slidably connected to the interior of the fixture shell 13, the front sides of the connecting blocks 2 and the extended connecting blocks 20 being fixedly connected to a mounting shell 1 4, the mounting shell 1 4 being connected using the connecting blocks 2 and the extended connecting blocks 20, thereby realizing the function of the mounting shell 1 4 moving on the connecting frame 1. A mounting shell 2 5 is installed at the bottom of the mounting shell 1 4, a clamping plate 6 is fixedly connected to the bottom of the mounting shell 1 5, a shock-absorbing pad 7 is fixedly connected to the bottom of the clamping plate 6, and by installing a clamping plate 6 that matches the workpiece to be processed, the contact area is increased, and in conjunction with the shock-absorbing pad 7, the vibration of the clamped workpiece is reduced, thereby ensuring the processing accuracy. A docking assembly is installed inside the mounting shell 1 4 and the mounting shell 2 5 for quickly installing and replacing different types of clamping plates 6. The connecting frame 1 is provided with a sliding groove 3 , and the connecting block 2 and the extended connecting block 20 are slidably connected inside the sliding groove 3 .

[0034] Reference Figure 1-Figure 3 The docking assembly includes two fixed shells 8, which are respectively fixedly connected to the inside of the mounting shell 1 4 and the mounting shell 2 5. The inside of the two fixed shells 8 is rotatably connected to a rotating block 9. The sides of the two rotating blocks 9 are fixedly connected to a control board 10. The control board 10 is used to control the rotating block 9 to rotate and get stuck in the inside of the fixed shell 8. The sides of the two control boards 10 are rotatably connected to a tension spring telescopic rod 11. The two tension spring telescopic rods 11 are respectively rotatably connected to the inner walls of the mounting shell 1 4 and the mounting shell 2 5. The tension applied by the tension spring telescopic rod 11 ensures that the rotating block 9 is stuck in the inside of the fixed shell 8. The sides of the mounting shell 1 4 and the mounting shell 2 5 are both provided with a limiting slot 12. The control board 10 is slidably connected to the inside of the limiting slot 12. The moving range of the control board 10 is controlled by the limiting slot 12 to ensure the relative position of the rotating block 9 and the fixed shell 8. A rotation groove 19 is provided inside the fixed shell 8, and the rotation block 9 is rotatably connected inside the rotation groove 19. The rotation block 9 is clamped through the rotation groove 19 to ensure the stability of the connection between the mounting shell 1 4 and the mounting shell 2 5.

[0035] Reference Figure 1 、 Figure 4 and Figure 5The interior of the fixture shell 13 is rotatably connected to a connector 14, and the fixture is connected to the control end of the CNC machine tool through the connector 14. The front side of the connector 14 is fixedly connected to a connecting column 15, and the front side of the connecting column 15 is rotatably connected to the inside of the connecting frame 1. The outer periphery of the connecting column 15 is fixedly connected to a gear 16, and the bottom of the connecting block 2 is fixedly connected to a rack 18, and the rack 18 and the gear 16 are meshed with each other. The outer periphery of the connecting column 15 is fixedly connected to a gear 2 17, and the bottom of the extended connecting block 20 is fixedly connected to a rack 18, and the rack 18 and the gear 2 17 are meshed with each other. The connecting column 15 is rotated using the connector 14, and with the cooperation of the connecting block 2, the extended connecting block 20, the gear 16, the gear 2 17 and the rack 18, the clamping plate 6 installed on the mounting shell 1 4 is controlled to clamp the workpiece, ensuring that the force around it is uniform, and further reducing the vibration of the workpiece.

[0036] Working principle: When in use, the fixture is installed on the CNC machine tool, connected to the control end of the CNC machine tool through the connecting piece 14, and the control board 10 is turned to control the rotation of the rotating block 9 to separate the mounting shell 2 5 from the mounting shell 1 4. The clamping plate 6 suitable for the shape of the workpiece to be processed is selected, and the fixed shell 8 of the mounting shell 2 5 above the clamping plate 6 is aligned with the fixed shell 8 of the mounting shell 1 4 and slides in. The fixed shell 8 squeezes the rotating block 9 to rotate. When the rotating block 9 of the mounting shell 2 5 moves to the rotating groove 19 of the mounting shell 1 4, the tension spring is extended and retracted. The pulling force of the rod 11 pulls down the control plate 10 and rotates the rotating block 9 to fix it in the rotating groove 19, completing the work of quickly installing the clamping plate 6, placing the workpiece to be processed into the clamping plate 6, and controlling the connecting piece 14 to rotate the connecting column 15 forward, driving the gear 16 and the gear 2 17 on the connecting column 15 to rotate together and push the rack 18, through the connecting block 2 and the extended connecting block 20 connected to the rack 18, controlling the clamping plate 6 and the shock-absorbing pad 7 under the mounting shell 4 to move inward together to clamp the workpiece.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A seismic fixture for a numerically controlled machine tool, comprising a fixture shell (13), characterized in that: The front side of the clamp shell (13) is fixedly connected to a connecting frame (1), and the interior of the connecting frame (1) is slidably connected to a plurality of connecting blocks (2) and a plurality of extended connecting blocks (20), and the plurality of connecting blocks (2) and the plurality of extended connecting blocks (20) are slidably connected to the interior of the clamp shell (13), and the front sides of the connecting blocks (2) and the extended connecting blocks (20) are fixedly connected to a mounting shell (4), and the bottom of the mounting shell (4) is installed with a mounting shell (5), and the bottom of the mounting shell (5) is fixedly connected to a clamping plate (6), and the bottom of the clamping plate (6) is fixedly connected to a shock-absorbing pad (7), and the interiors of the mounting shell (4) and the mounting shell (5) are installed with docking components for quickly installing and replacing different types of clamping plates (6).

2. The anti-seismic fixture for CNC machine tools according to claim 1, characterized in that: The connecting frame (1) is provided with a sliding groove (3), and the connecting block (2) and the extended connecting block (20) are slidably connected inside the sliding groove (3).

3. The anti-seismic fixture for CNC machine tools according to claim 1, characterized in that: The docking assembly comprises two fixed shells (8), the two fixed shells (8) are fixedly connected to the inside of the installation shell 1 (4) and the installation shell 2 (5), respectively, the inside of the two fixed shells (8) are rotatably connected to a rotating block (9), the sides of the two rotating blocks (9) are fixedly connected to a control board (10), the sides of the two control boards (10) are rotatably connected to a tension spring telescopic rod (11), and the two tension spring telescopic rods (11) are rotatably connected to the inner walls of the installation shell 1 (4) and the installation shell 2 (5), respectively.

4. The anti-seismic fixture for a CNC machine tool according to claim 3, characterized in that: The side surfaces of the first installation shell (4) and the second installation shell (5) are both provided with limiting grooves (12), and the control board (10) is slidably connected inside the limiting grooves (12).

5. The anti-seismic fixture for a CNC machine tool according to claim 3, characterized in that: A rotation groove (19) is provided inside the fixed shell (8), and the rotation block (9) is rotatably connected inside the rotation groove (19).

6. The anti-seismic fixture for a CNC machine tool according to claim 1, characterized in that: The interior of the clamp shell (13) is rotatably connected to a connecting piece (14), the front side of the connecting piece (14) is fixedly connected to a connecting column (15), and the front side of the connecting column (15) is rotatably connected to the interior of the connecting frame (1).

7. The anti-seismic fixture for a CNC machine tool according to claim 6, characterized in that: The outer periphery of the connecting column (15) is fixedly connected to a gear one (16), and the bottom of the connecting block (2) is fixedly connected to a rack (18), and the rack (18) and the gear one (16) are meshed with each other.

8. The anti-seismic fixture for a CNC machine tool according to claim 6, characterized in that: The outer periphery of the connecting column (15) is fixedly connected to a second gear (17), and the bottom of the extended connecting block (20) is fixedly connected to a rack (18), and the rack (18) and the second gear (17) are meshed with each other.

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