Clamp for numerical control machine tool

Abstract

The utility model relates to the field of numerically-controlled machine tools, and discloses a clamp for a numerically-controlled machine tool, which comprises a bottom plate, a plurality of motors are arranged at two ends of the front side of the bottom plate, the driving ends of the motors are fixedly connected with threaded rods, the interiors of two ends of the bottom plate are fixedly connected with limiting rods, and the outer walls of the limiting rods are rotatably connected with sliding blocks. The interiors of the sliding blocks are connected to the outer walls of threaded rods in a threaded mode, the threaded rods are rotatably connected to the interiors of the two ends of the bottom plate, the tops of the sliding blocks are connected with sleeves through telescopic assemblies, the right ends of the sleeves are rotatably connected with rotating cylinders, and the rotating cylinders are connected with chucks through buckle assemblies. The chuck can be detached to replace other types of chucks so as to adapt to different work objects, the angle of the chuck can be rotated through the rotary drum so as to change the angle of the work object, and the clamp can adapt to various work objects and work requirements.

Description

Technical Field

[0001] The utility model relates to the field of numerically controlled machine tools, in particular to a clamp for numerically controlled machine tools. Background Art

[0002] The fixture of a lathe mainly refers to the fixture installed on the lathe spindle. This type of fixture is connected to the machine spindle and drives the workpiece to rotate with the spindle. Lathe fixtures are mainly divided into two categories: various chucks, which are suitable for the processing of disc parts and short shaft parts; center hole and center centering fixtures for installing workpieces, which are suitable for shaft parts with larger lengths or more processing steps. CNC turning processing requires that the fixture should have high positioning accuracy and rigidity, simple structure, strong versatility, easy installation of fixtures on machine tools, rapid loading and unloading of workpieces, and automation.

[0003] After searching, a clamp for CNC machine tools with announcement number CN117283337A is found. The clamp includes a base, a clamping table for placing workpieces is arranged in the middle of the base, clamping components are distributed on both sides of the clamping table, and the clamping components include an active rod, an intermediate rod and a driven rod. The lower ends of the active rod and the driven rod are hinged to the base, the upper end of the active rod is hinged to one end of the intermediate rod, and the upper end of the driven rod is hinged to the other end of the intermediate rod. The active rod, the intermediate rod and the driven rod constitute a Tchebicheff connecting rod mechanism. The base is provided with a driving device that can drive the active rod to swing. When the intermediate rod runs to the extreme position close to the clamping table, it is in a vertical state and can press against the side of the workpiece; when the intermediate rod runs to the middle position, it is in a horizontal state and can press against the upper surface of the workpiece. When this clamp clamps the workpiece in the vertical direction or in the vertical direction, there is no need to remove the entire clamp, and there is no need to replace the CNC machine tool, so the operation is more convenient.

[0004] Based on the above patent, by adopting the above technical solution, the workpiece is placed above the clamping table, the driving device drives the active rod to swing, and the active rod drives the driven rod to swing through the intermediate rod. When the workpiece needs to be clamped in the vertical direction, the intermediate rod runs to the middle position, in a horizontal state, and is pressed against the upper surface of the workpiece to achieve clamping. When the workpiece needs to be clamped from the side, the intermediate rod runs to the extreme position close to the clamping table, in a vertical state, and is pressed against the side of the workpiece to achieve clamping. Because the clamp does not need to remove the entire clamp or replace the CNC machine tool when clamping the workpiece in the vertical direction or vertical direction, the operation is more convenient. However, the device cannot disassemble and replace the chuck, and has defects in horizontal clamping and angle changes. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a clamp for CNC machine tools, which can change the position of a work object in the horizontal direction, the chuck can be disassembled to replace other types of chucks to adapt to different work objects, and the angle of the chuck can be rotated by the rotating drum of the rotating drum to change the angle of the work object.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A clamp for a CNC machine tool comprises a base plate, with multiple motors installed at both ends of the front side of the base plate, the driving ends of the motors are fixedly connected to threaded rods, both ends of the base plate are fixedly connected to limit rods, the outer walls of the limit rods are rotatably connected to sliders, the inner walls of the sliders are threadedly connected to the outer walls of the threaded rods, the threaded rods are rotatably connected to the insides of both ends of the base plate, the top of the slider is connected to a sleeve through a telescopic assembly, the right end of the sleeve is rotatably connected to a rotating cylinder, and the rotating cylinder is connected to a chuck through a snap assembly.

[0008] Furthermore, the telescopic assembly includes a vertical telescopic rod fixedly connected to the top of the slider, the top of the vertical telescopic rod is rotatably connected to a swivel seat via a round rod, a latch ring is provided on the left outer wall of the swivel seat, the rear side of the swivel seat is rotatably connected to a gear via a round rod, and a transverse telescopic rod is provided on the right side of the vertical telescopic rod.

[0009] Furthermore, a box body is fixedly connected to the top of the bottom plate, sliding rods are fixedly connected to both sides of the box body, and transverse telescopic rods are slidably connected to the outer walls of the sliding rods.

[0010] Furthermore, a latch is plug-connected inside the latch ring.

[0011] Furthermore, the buckle assembly includes a rotating shaft located at one end of the chuck, the rotating shaft is fixedly connected to a buckle rod through a connecting rod, both ends of the outer wall of the sleeve are fixedly connected to a slot column, a slot is provided inside the slot column, and the buckle rod is fixedly connected to the inside of the slot column through the slot.

[0012] Furthermore, a rotating motor is arranged inside the sleeve, and one end of the transmission motor is rotatably connected to one end of the rotating drum through a rotating rod.

[0013] Furthermore, a fan is installed on the top of the rear side of the base plate.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the threaded rod is driven to rotate by the rotation of the motor, so that the slider moves on the threaded rod and the limit rod, and the telescopic component on the slider moves, so as to achieve the purpose of adjusting the horizontal position of the working object.

[0016] 2. In the utility model, the chuck is fixed on the rotating drum by buckling the buckle rod in the slot of the slot column, or the buckle rod is removed from the slot of the slot column to remove the chuck from the rotating drum, thereby achieving the function of replacing the chuck to adapt to different work objects and work requirements, and the rotating drum is driven to rotate by rotating the transmission motor in the sleeve, thereby rotating the chuck and changing the angle of the work object. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional structural diagram of a fixture for a CNC machine tool proposed by the utility model;

[0018] Figure 2 A three-dimensional cross-sectional view of a box body of a fixture for a CNC machine tool proposed in the utility model;

[0019] Figure 3 A three-dimensional structural diagram of a telescopic rod of a clamp for a CNC machine tool proposed by the utility model;

[0020] Figure 4 This is a diagram showing the internal structure of a sleeve of a fixture for a CNC machine tool proposed by the utility model;

[0021] Figure 5 This is an enlarged view of point A of a fixture for a CNC machine tool proposed by the utility model;

[0022] Figure 6 This is an enlarged view of point B of a fixture for a CNC machine tool proposed by the utility model.

[0023] Legend:

[0024] 1. Motor; 2. Box; 3. Sliding rod; 4. Threaded rod; 5. Bottom plate; 6. Limit rod; 7. Latch ring; 8. Gear; 9. Horizontal telescopic rod; 10. Fan; 11. Chuck; 12. Rotating drum; 13. Sleeve; 14. Rotating seat; 15. Vertical telescopic rod; 16. Slot column; 17. Buckle rod; 18. Rotating shaft; 19. Connecting rod; 20. Sliding block; 21. Transmission motor. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Reference Figure 1-6The utility model provides an embodiment: a clamp for a CNC machine tool, including a base plate 5, a plurality of motors 1 are installed at both ends of the front side of the base plate 5, a threaded rod 4 is fixedly connected to the driving end of the motor 1, and a limiting rod 6 is fixedly connected to the inside of both ends of the base plate 5, through the limiting rod 6, the slider does not rotate but slides when the threaded rod rotates, the outer wall of the limiting rod 6 is rotatably connected to the slider 20, the inner thread of the slider 20 is connected to the outer wall of the threaded rod 4, the threaded rod 4 is rotatably connected to the inside of both ends of the base plate 5, the top of the slider 20 is connected to the sleeve 13 through a telescopic assembly, the right end of the sleeve 13 is rotatably connected to the rotating cylinder 12, and the rotating cylinder 12 is connected to the chuck 11 through a snap assembly.

[0027] Specifically, the threaded rod 4 is driven to rotate by the rotation of the motor 1, so that the slider 20 moves on the threaded rod 4 and the limit rod 6, so that the telescopic component on the slider 20 moves, so as to achieve the purpose of adjusting the horizontal position of the work object.

[0028] The telescopic assembly includes a vertical telescopic rod 15 fixedly connected to the top of the slider 20, the top of the vertical telescopic rod 15 is rotatably connected to a swivel seat 14 through a round rod, a latch ring 7 is provided on the left outer wall of the swivel seat 14, and a gear 8 is rotatably connected to the rear side of the swivel seat 14 through a round rod, a transverse telescopic rod 9 is provided on the right side of the vertical telescopic rod 15, a latch is plugged into the latch ring 7, the top of the bottom plate 5 is fixedly connected to a box body 2, sliding rods 3 are fixedly connected on both sides of the box body 2, and the outer wall of the sliding rod 3 is slidably connected to a transverse telescopic rod 9.

[0029] Specifically, the telescopic function of the vertical telescopic rod 9 is used to make the sleeve 13 on the right side move up and down in the vertical direction, so as to change the position of the work object in the vertical direction. The position of the work object in the vertical direction is changed by the slide groove and the rotating shaft of the horizontal telescopic rod 9 and the vertical telescopic rod 15. The sleeve 13 is rotated by the rotating shaft on the support and the gear 8, the latch ring 7 and the latch on the side of the support cooperate with each other to achieve the purpose of changing the angle of the rotating cylinder 13 in the vertical direction and fixing the angle of the rotating cylinder 13 in the vertical direction, thereby changing the angle of the work object in the vertical direction.

[0030] The buckle assembly includes a rotating shaft 18 located at one end of the chuck 11, and the rotating shaft 18 is fixedly connected to a buckle rod 17 through a connecting rod 19. Both ends of the outer wall of the sleeve 13 are fixedly connected to a slot column 16, and a slot is provided inside the slot column 16. The buckle rod 17 is fixedly connected to the inside of the slot column 16 through the slot. A rotating motor 21 is provided inside the sleeve 13, and one end of the transmission motor 21 is rotatably connected to one end of the rotating cylinder 12 through a rotating rod.

[0031] Specifically, the chuck 11 is fixed on the rotating drum 12 by buckling the snap rod 17 into the slot of the slot column 16, or the snap rod 17 is removed from the slot of the slot column 16 to remove the chuck 11 from the rotating drum 12, thereby achieving the function of replacing the chuck to adapt to different work objects and work requirements, and the rotating drum 12 is driven to rotate by rotating the transmission motor 21 in the sleeve 13, so that the chuck 11 is rotated, thereby changing the angle of the work object.

[0032] A fan 10 is installed on the top of the rear side of the base plate 5. Specifically, the fan 10 can remove the debris and slag generated during machine tool processing, thereby saving time for subsequent cleaning.

[0033] Working principle: The vertical height of the chuck 11 is adjusted by extending and retracting the vertical telescopic rod 15 up and down and the horizontal telescopic rod 9 horizontally, so that the chuck 11 meets the working height requirement, and the slider 20 is driven by the rotation of the motor 1 to move horizontally on the threaded rod 4 and the limit rod 6, thereby changing the position of the chuck 11 in the horizontal direction, and the angle of the sleeve 13 is changed by the rotating shaft, so that the working height of the work object is changed, and the chuck 11 is fixed on the rotating drum 12 by buckling the snap rod 17 in the slot of the slot column 16, or the snap rod 17 is removed from the slot of the slot column 16, so that the chuck 11 is removed from the rotating drum 12, so that the chuck can be replaced to adapt to different work objects and work requirements. The rotating drum 12 is driven to rotate by the rotation of the transmission motor 21 in the sleeve 13, so that the chuck 11 is rotated, so that the angle of the work object is changed, and the debris and slag generated during machine tool processing can be removed by the fan 10 during processing, so that subsequent cleaning saves time.

[0034] 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 substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fixture for a numerically controlled machine tool, comprising a base plate (5), characterized in that: A plurality of motors (1) are installed at both ends of the front side of the base plate (5); the driving end of the motor (1) is fixedly connected to a threaded rod (4); both ends of the base plate (5) are fixedly connected to a limit rod (6); the outer wall of the limit rod (6) is rotatably connected to a slider (20); the inner wall of the slider (20) is threadedly connected to the outer wall of the threaded rod (4); the threaded rod (4) is rotatably connected to the inside of both ends of the base plate (5); the top of the slider (20) is connected to a sleeve (13) via a telescopic assembly; the right end of the sleeve (13) is rotatably connected to a rotating cylinder (12); and the rotating cylinder (12) is connected to a chuck (11) via a snap assembly.

2. A fixture for a CNC machine tool according to claim 1, characterized in that: The telescopic assembly comprises a vertical telescopic rod (15) fixedly connected to the top of a slider (20); the top of the vertical telescopic rod (15) is rotatably connected to a swivel seat (14) via a round rod; a latch ring (7) is provided on the left outer wall of the swivel seat (14); a gear (8) is rotatably connected to the rear side of the swivel seat (14) via a round rod; and a transverse telescopic rod (9) is provided on the right side of the vertical telescopic rod (15).

3. A fixture for a CNC machine tool according to claim 1, characterized in that: The top of the bottom plate (5) is fixedly connected to a box body (2), both sides of the box body (2) are fixedly connected to sliding rods (3), and the outer wall of the sliding rod (3) is slidably connected to a transverse telescopic rod (9).

4. A fixture for a CNC machine tool according to claim 2, characterized in that: The latch ring (7) is internally plugged with a latch.

5. The fixture for a CNC machine tool according to claim 1, characterized in that: The buckle assembly comprises a rotating shaft (18) located at one end of the clamp (11), the rotating shaft (18) being fixedly connected to a buckle rod (17) via a connecting rod (19), and both ends of the outer wall of the sleeve (13) being fixedly connected to a slot column (16), a slot being provided inside the slot column (16), and the buckle rod (17) being fixedly connected to the inside of the slot column (16) via the slot.

6. The fixture for a CNC machine tool according to claim 1, characterized in that: A transmission motor (21) is arranged inside the sleeve (13), and one end of the transmission motor (21) is rotatably connected to one end of the rotating drum (12) via a rotating rod.

7. The fixture for a CNC machine tool according to claim 1, characterized in that: A fan (10) is installed on the top of the rear side of the base plate (5).

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