CNC (Computer Numerical Control) machine tool clamp capable of quickly positioning

Abstract

The utility model discloses a CNC machine tool fixture capable of quickly positioning, which relates to the field of CNC machine tool fixtures, and comprises a clamping table, a square groove is formed in the middle of the clamping table, four clamps in different directions are arranged in the groove, the inner walls of the four clamps are all provided with abutting blocks, the bottom surface of the clamping table is fixedly connected with four supporting columns, and the supporting columns are fixedly connected with the clamping table. The four supporting columns are jointly connected with a movable plate in a sliding mode. The four clamps are arranged, the movable plate moves to drive the four clamps to move downwards at the same time, so that the clamps clamp objects at the same time, the four guide rods are arranged at the bottom of the clamping table, the bottom ends of the four guide rods are jointly and fixedly connected with the rotating disc, and after one clamped object is machined, the direction is adjusted through the rotating disc, and the clamping table is fixed to the rotating disc. And an unprocessed object is adjusted to the angle of the workbench to be processed, so that the situation that the unprocessed object needs to be replaced again when one object is processed every time is avoided, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of CNC machine tool fixtures, in particular to a CNC machine tool fixture capable of rapid positioning. Background Art

[0002] CNC machine tools are also called computer numerical control technology, which uses computers to implement digital program control. This technology uses computers to execute the motion trajectory of the equipment and the operation timing logic control function of peripherals according to the control program stored in advance. Since computers are used to replace the original numerical control devices composed of hardware logic circuits, the storage, processing, calculation, logical judgment and other control functions of input operation instructions can be completed by computer software. The micro instructions generated by processing are transmitted to the servo drive device to drive the motor or hydraulic actuator to drive the equipment to operate. For example, when manufacturing mobile phone and tablet computer shells, it is usually necessary to use the machine tool fixture to clamp the unpainted shell and then spray paint.

[0003] After searching, the applicant found that a Chinese patent disclosed "a CNC machine tool fixture capable of rapid positioning", and its publication (announcement) number is "CN207824450U". This patent mainly sets two first clamping columns, two second clamping columns and three third clamping columns, so that the two first clamping columns and the second clamping columns can be easily positioned in the longitudinal direction, and the two third clamping columns can be positioned in the transverse direction. In addition, the distance between the first clamping column and the second clamping column can be adjusted by the positioning nut, so that the use range of the clamp can be expanded, and the positioning can be rapid, so that the CNC machine tool can be accurately operated, and the production efficiency and quality can be effectively improved;

[0004] The device in the above patent can perform certain positioning when clamping an object, but during production, only a single object can be clamped at a time, and the position of the clamping column must be adjusted each time the object is clamped before clamping, which increases the complexity of processing and reduces work efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a CNC machine tool clamp that can be quickly positioned, so as to solve the problem that the device in the above patent proposed in the above background technology can perform certain positioning when clamping an object, but during production, only a single object can be clamped at a time, and the position of the clamping column must be adjusted each time the object is clamped before clamping, which increases the complexity of processing and reduces work efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a CNC machine tool fixture capable of rapid positioning, comprising a clamping table, a square groove is provided in the middle of the clamping table, and four clamps in different directions are provided in the groove, the inner walls of the four clamps are provided with interference blocks, the bottom surface of the clamping table is fixedly connected with four support columns, the four support columns are slidably connected with a movable plate, the ends of the four clamps away from the interference blocks are fixedly connected to the top surface of the movable plate, and the ends of the four support columns away from the clamping table are fixedly connected with a turntable.

[0007] Preferably, four receiving grooves are provided on the top surface of the clamping platform, and the four receiving grooves respectively correspond vertically to the bottom of four abutment blocks.

[0008] Preferably, a slide groove is provided inside each of the four clamps, and limiting grooves are provided on both inner walls of the slide groove, and sliders are fixedly connected to both side surfaces of the four resistance blocks, and the sliders are respectively placed in corresponding limiting grooves.

[0009] Preferably, a group of springs are fixedly connected to the top surfaces of the four abutment blocks, and one end of the four springs away from the abutment blocks is fixedly connected to the upper wall of the slide groove.

[0010] Preferably, a fixing plate is fixedly connected to the lower part of the inner wall of the clamping platform, and four through slots are formed on the top surface of the fixing plate, and the sizes of the four through slots are adapted to the sizes of the clamps.

[0011] Preferably, a driving motor is fixedly connected to the top surface of the turntable, a threaded rod is fixedly connected to the output end of the driving motor, and the top end of the threaded rod passes through the movable plate and is rotatably connected to the fixed plate.

[0012] Preferably, a base is provided under the turntable, a servo motor is fixedly connected to the inside of the base, a rotating rod is fixedly connected to the output end of the servo motor, an end of the rotating rod away from the servo motor is rotatably connected to the inner wall of the base, and an active bevel gear is fixedly connected to the rod wall of the rotating rod.

[0013] Preferably, a rotating rod is fixedly connected to the bottom surface of the turntable, the bottom end of the rotating rod passes through the upper wall of the base and is fixedly connected to a driven bevel gear, and the driven bevel gear is meshedly connected to the rotating rod.

[0014] Technical effects and advantages of the utility model:

[0015] 1. The utility model provides four clamps, and the moving plate drives the four clamps to move downward at the same time, so that the clamps clamp the objects at the same time, and four guide rods are provided at the bottom of the clamping table, and the bottom ends of the four guide rods are fixedly connected to a turntable. After processing of one of the clamped objects is completed, the direction of the turntable is adjusted to adjust the unprocessed object to the angle of the workbench for processing, thereby avoiding the need to replace the unprocessed object again every time an object is processed, thereby improving work efficiency.

[0016] 2. The utility model provides a resistance block at the bottom end of the clamp and a spring at the top end of the resistance block. When the clamp drives the resistance block to squeeze the object, the spring can buffer the object to a certain extent to avoid damage to the object during clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the clamping platform of the utility model.

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the clamp of the present utility model.

[0020] Figure 4 This is a schematic diagram of the cross-section structure of the practical turntable.

[0021] In the figure: 1. clamping table; 2. support column; 3. moving plate; 4. clamp; 5. resistance block; 6. receiving groove; 7. driving motor; 8. turntable; 9. base; 10. fixing plate; 11. through groove; 12. threaded rod; 13. limiting groove; 14. spring; 15. slider; 16. rotating rod; 17. driven bevel gear; 18. driving bevel gear; 19. servo motor; 20. rotating rod. DETAILED DESCRIPTION

[0022] 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.

[0023] The utility model provides Figure 1-4A CNC machine tool fixture capable of rapid positioning is shown, comprising a clamping table 1, a square groove is provided in the middle of the clamping table 1, and four clamps 4 in different directions are provided in the groove, the inner walls of the four clamps 4 are provided with interference blocks 5, four support columns 2 are fixedly connected to the bottom surface of the clamping table 1, the four support columns 2 are commonly slidably connected to a moving plate 3, the ends of the four clamps 4 away from the interference block 5 are fixedly connected to the top surface of the moving plate 3, and the ends of the four support columns 2 away from the clamping table 1 are commonly fixedly connected to a turntable 8.

[0024] like Figure 1 As shown, four receiving grooves 6 are provided on the top surface of the clamping platform 1, and the four receiving grooves 6 correspond vertically to the bottom of four abutment blocks 5 respectively. When the object to be clamped is placed in the receiving groove 6, the object can be clamped conveniently by moving the abutment blocks 5.

[0025] like Figure 2 As shown, a fixed plate 10 is fixedly connected to the lower part of the inner wall of the clamping platform 1, and four through slots 11 are opened on the top surface of the fixed plate 10. The sizes of the four through slots 11 are adapted to the sizes of the clamp 4. At this time, the bottom end of the clamp 4 is connected to the movable plate 3 through the through slots 11. At the same time, the fixed plate 10 has a binding effect on the clamp 4 to prevent the clamp 4 from deviating when moving downward.

[0026] like Figure 3 As shown, the four clamps 4 are each provided with a slide groove inside, and the two inner walls of the slide groove are each provided with a limit groove 13, the two side surfaces of the four resistance blocks 5 are each fixedly connected with a slider 15, and the sliders 15 are respectively placed in the corresponding limit grooves 13, and the top surfaces of the four resistance blocks 5 are each fixedly connected with a group of springs 14, and the ends of the four springs 14 away from the resistance blocks 5 are each fixedly connected to the upper wall of the slide groove, so that the springs 14 can provide a certain degree of buffering when the resistance blocks 5 clamp objects.

[0027] like Figure 4 As shown, a base 9 is provided under the turntable 8, a servo motor 19 is fixedly connected inside the base 9, a rotating rod 20 is fixedly connected to the output end of the servo motor 19, an end of the rotating rod 20 away from the servo motor 19 is rotatably connected to the inner wall of the base 9, and an active bevel gear 18 is fixedly connected to the rod wall of the rotating rod 20.

[0028] like Figure 4 As shown, a rotating rod 16 is fixedly connected to the bottom surface of the turntable 8 , the bottom end of the rotating rod 16 passes through the upper wall of the base 9 , and is fixedly connected to a driven bevel gear 17 , which is meshed with the rotating rod 20 .

[0029] like Figure 1 and Figure 2As shown, the top surface of the turntable 8 is fixedly connected to a driving motor 7, and the output end of the driving motor 7 is fixedly connected to a threaded rod 12. The top end of the threaded rod 12 passes through the movable plate 3 and is rotatably connected to the fixed plate 10. The threaded rod 12 is rotated by the driving motor 7, and the movable plate 3 is moved by the rotation of the threaded rod 12, thereby driving the clamp 4 to move, thereby clamping the object.

[0030] Working principle of the utility model: when the utility model is used, first put the object into the receiving groove 6, then start the driving motor 7, and drive the threaded rod 12 to rotate through the output end of the driving motor 7, and drive the moving plate 3 to move through the rotation of the threaded rod 12, and drive the four clamps 4 to move toward each other through the movement of the moving plate 3, and drive the resistance block 5 to move downward through the downward movement of the clamp 4, and the resistance block 5 moves so that the resistance block 5 clamps the object in the receiving groove 6. At this time, due to the action of the spring 14, the object can be buffered during the clamping process to avoid damage caused by excessive squeezing of the object;

[0031] When the processing of one of the clamped objects is completed, the servo motor 19 is started, and the output end of the servo motor 19 drives the rotating rod 20 to rotate, and the active bevel gear 18 is rotated by the rotation of the rotating rod 20, and the driven bevel gear 17 is rotated by the rotation of the active bevel gear 18, and the rotating rod 16 is rotated by the driven bevel gear 17, and then the turntable 8 is rotated, and the support column 2 is rotated by the turntable 8, and then the clamping table 1 is rotated. At this time, the unprocessed object is turned to the direction of the workbench for processing. This article highlights the innovative structure and does not elaborate on the prior art.

[0032] 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 CNC machine tool fixture capable of rapid positioning, comprising a clamping table (1), characterized in that: A square groove is provided in the middle of the clamping platform (1), and four clamps (4) in different directions are provided in the groove, and the inner walls of the four clamps (4) are provided with a resistance block (5), the bottom surface of the clamping platform (1) is fixedly connected with four support columns (2), and the four support columns (2) are slidably connected with a movable plate (3), and the ends of the four clamps (4) away from the resistance block (5) are fixedly connected with the top surface of the movable plate (3), and the ends of the four support columns (2) away from the clamping platform (1) are fixedly connected with a turntable (8).

2. A CNC machine tool fixture capable of rapid positioning according to claim 1, characterized in that: The top surface of the clamping platform (1) is provided with four receiving grooves (6), and the four receiving grooves (6) respectively correspond vertically to the bottom of four abutment blocks (5).

3. The CNC machine tool fixture capable of rapid positioning according to claim 1, characterized in that: The four clamps (4) are each provided with a slide groove, and both inner walls of the slide groove are provided with a limit groove (13). Both side surfaces of the four abutment blocks (5) are fixedly connected with a slider (15), and the slider (15) is respectively placed in the corresponding limit groove (13).

4. The CNC machine tool fixture capable of rapid positioning according to claim 1, characterized in that: A group of springs (14) are fixedly connected to the top surfaces of the four abutment blocks (5), and one end of the four springs (14) away from the abutment blocks (5) is fixedly connected to the upper wall of the slide groove.

5. The CNC machine tool fixture capable of rapid positioning according to claim 1, characterized in that: A fixing plate (10) is fixedly connected to the lower part of the inner wall of the clamping platform (1), and four through slots (11) are formed on the top surface of the fixing plate (10). The sizes of the four through slots (11) are adapted to the sizes of the clamp (4).

6. The CNC machine tool fixture capable of rapid positioning according to claim 1, characterized in that: The top surface of the rotating disk (8) is fixedly connected to a driving motor (7), the output end of the driving motor (7) is fixedly connected to a threaded rod (12), the top end of the threaded rod (12) penetrates the movable plate (3) and is rotatably connected to the fixed plate (10).

7. The CNC machine tool fixture capable of rapid positioning according to claim 1, characterized in that: A base (9) is provided below the turntable (8), a servo motor (19) is fixedly connected inside the base (9), a rotating rod (20) is fixedly connected to the output end of the servo motor (19), an end of the rotating rod (20) away from the servo motor (19) is rotatably connected to the inner wall of the base (9), and a driving bevel gear (18) is fixedly connected to the rod wall of the rotating rod (20).

8. The CNC machine tool fixture capable of rapid positioning according to claim 1, characterized in that: The bottom surface of the rotating disk (8) is fixedly connected to a rotating rod (16), the bottom end of the rotating rod (16) passes through the upper wall of the base (9) and is fixedly connected to a driven bevel gear (17), and the driven bevel gear (17) is meshedly connected to the rotating rod (20).

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