Clamp for rotating shaft of CNC (computer numerical control) machine

Abstract

The utility model relates to a clamp for a CNC (computer numerical control) machine rotating shaft, which comprises a flange plate, positioning rods which are oppositely arranged are mounted on the flange plate, supporting rods are vertically and fixedly connected to one sides, far away from the flange plate, of the positioning rods, a fixing plate is mounted between the tops of the two supporting rods, and a through hole is formed in the middle of the fixing plate. A clamp body is detachably mounted at the top of the fixing plate; the fixing plate is installed between the tops of the two supporting rods, the clamp body is detachably installed on the top of the fixing plate, the supporting rods support the side face, in the length direction, of the clamp body, stability of the clamp body is effectively enhanced, high-frequency resonance during machining can be effectively relieved, and machining quality is improved. Cutter vibration lines are prevented from being generated during machining, and the machining quality of workpieces is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of CNC machining, in particular to a clamp used for a rotating shaft of a CNC machine. Background Art

[0002] The three-axis CNC machine can move linearly in three axes. The four-axis CNC machine adds a rotating axis to the three-axis CNC machine, which improves the processing accuracy and efficiency, but the price of the four-axis CNC machine is relatively high. In order to save equipment investment, a rotating axis can be added to the existing three-axis CNC machine to complete more complex processing tasks. When the three-axis CNC machine is installed with a rotating axis, the clamping device for clamping the workpiece needs to be installed on the rotating axis. Existing clamping devices such as Figure 2 As shown, it includes a flange and a clamp, the flange is installed on the rotating shaft, and the clamp is fastened to the flange. When the clamp fixes the workpiece for processing, the side of the clamp along the length direction is not supported, so the clamp will produce high-frequency resonance, which makes it easy to produce vibration marks during processing, thereby reducing the processing quality of the workpiece. Utility Model Content

[0003] The purpose of the utility model is to design a clamp for a rotating shaft of a CNC machine so as to solve the problems mentioned in the background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A clamp for a rotating axis of a CNC machine comprises a flange, on which positioning rods are mounted opposite to each other, a support rod is vertically fixedly connected to the side of the positioning rod away from the flange, a fixing plate is mounted between the tops of two support rods, a through hole is provided in the middle of the fixing plate, and a clamp body is detachably mounted on the top of the fixing plate.

[0006] Furthermore, two first main screw holes are provided in sequence from top to bottom on the side of the positioning rod close to the flange, and a first secondary screw hole is provided on the side of the flange away from the positioning rod, which is aligned one by one with the first main screw holes, and the first main screw hole and the first secondary screw hole are connected by a first screw.

[0007] Furthermore, two first positioning pins are fixedly connected in sequence from top to bottom on one side of the positioning rod close to the flange, and the flange is provided with first positioning holes aligned one by one with the first positioning pins.

[0008] Furthermore, three second secondary screw holes are provided on opposite sides of the top of the fixing plate along the width direction, and the three second secondary screw holes are arranged in sequence along the length direction of the fixing plate. The top of the support rod is provided with a second main screw hole aligned one by one with the second secondary screw holes, and the second main screw hole and the second secondary screw hole are connected by a second screw.

[0009] Furthermore, two second positioning pins are fixedly connected to the top of the support rod in sequence along the length direction, and the fixing plate is provided with second positioning holes aligned one by one with the second positioning pins.

[0010] Furthermore, two third main screw holes are provided on opposite sides of the top of the fixing plate along the length direction, and the two third main screw holes are arranged in sequence along the width direction of the fixing plate. The top of the clamp body is provided with a third secondary screw hole aligned one by one with the third main screw holes, and the third main screw hole and the third secondary screw hole are connected by a third screw.

[0011] Furthermore, third positioning pins are fixedly connected to opposite sides of the top of the fixing plate along the length direction, and the clamp body is provided with a third positioning hole aligned with the third positioning pin.

[0012] Furthermore, a positioning bearing is fixedly connected to a side of the flange away from the positioning rod.

[0013] The beneficial effects of the utility model are:

[0014] A fixing plate is installed between the tops of two support rods, and a fixture body is installed on the top of the fixing plate, so that the support rods support the sides of the fixture body along the length direction, which effectively enhances the stability of the fixture body, can effectively reduce high-frequency resonance during processing, avoid the generation of vibration knife marks during processing, and improve the processing quality of the workpiece; the fixture body and the fixing plate are detachable for installation, which is convenient for replacing different fixture bodies, suitable for processing of various types of workpieces, and has good versatility; a through hole is provided in the middle of the fixing plate, which plays a role in weight reduction and facilitates the installation of other spare parts, and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 An existing clamping device used for a three-axis CNC machine;

[0018] Figure 3 It is an explosion diagram of the utility model;

[0019] Figure 4 for Figure 3 Schematic diagram from another perspective.

[0020] The names of the components marked in the figure are as follows:

[0021] 1. Flange; 2. Positioning rod; 3. Support rod; 4. Fixing plate; 5. Through hole; 6. Clamp body; 7. First main screw hole; 8. First secondary screw hole; 9. First screw; 10. First positioning pin; 11. First positioning hole; 12. Second secondary screw hole; 13. Second main screw hole; 14. Second screw; 15. Second positioning pin; 16. Second positioning hole; 17. Third main screw hole; 18. Third secondary screw hole; 19. Third screw; 20. Third positioning pin; 21. Third positioning hole; 22. Positioning bearing. DETAILED DESCRIPTION

[0022] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0023] like Figure 1-4 As shown, a clamp for a rotating axis of a CNC machine comprises a flange 1, on which a positioning rod 2 is installed which is relatively arranged, a positioning bearing 22 is fixedly connected to the side of the flange 1 away from the positioning rod 2, and the flange 1 is installed on the rotating axis of the CNC machine tool through the positioning bearing 22; two first main screw holes 7 are sequentially arranged from top to bottom on the side of the positioning rod 2 close to the flange 1, a first secondary screw hole 8 is arranged on the side of the flange 1 away from the positioning rod 2, and the first main screw hole 7 and the first secondary screw hole 8 are aligned one by one with the first main screw hole 7, the first main screw hole 7 and the first secondary screw hole 8 are connected by a first screw 9, and two first positioning pins 10 are sequentially fixedly connected to the side of the positioning rod 2 close to the flange 1 from top to bottom, and a first positioning hole 11 is arranged on the flange 1 which is aligned one by one with the first positioning pin 10, the positioning rod 2 is positioned by the first positioning pin 10 and fixed by the first screw 9, thereby improving the stability of the positioning rod 2;

[0024] A support rod 3 is vertically fixedly connected to the side of the positioning rod 2 away from the flange 1, and a fixing plate 4 is installed between the tops of the two support rods 3. A through hole 5 is provided in the middle of the fixing plate 4, which plays a role in weight reduction and is convenient for installing other spare parts, and has good practicality; three second secondary screw holes 12 are provided on the opposite sides of the top of the fixing plate 4 along the width direction, and the three second secondary screw holes 12 are arranged in sequence along the length direction of the fixing plate 4. A second main screw hole 13 is provided on the top of the support rod 3, which is aligned one by one with the second secondary screw hole 12. The second main screw hole 13 and the second secondary screw hole 12 are connected by a second screw 14. Two second positioning pins 15 are fixedly connected to the top of the support rod 3 in sequence along the length direction. A second positioning hole 16 is provided on the fixing plate 4, which is aligned one by one with the second positioning pin 15. The fixing plate 4 is positioned by the second positioning pin 15 and fixed by the second screw 14, thereby improving the stability of the fixing plate 4;

[0025] A fixture body 6 is installed on the top of the fixing plate 4, so that the support rod 3 supports the side of the fixture body 6 along the length direction, effectively enhancing the stability of the fixture body 6 and effectively reducing the high-frequency resonance during processing; two third main screw holes 17 are provided on the opposite sides of the top of the fixing plate 4 along the length direction, and the two third main screw holes 17 are arranged in sequence along the width direction of the fixing plate 4, and a third secondary screw hole 18 is provided on the top of the fixture body 6, which is aligned one by one with the third main screw hole 17, and the third main screw hole 17 and the third secondary screw hole 18 are connected by a third screw 19, and a third positioning pin 20 is fixedly connected on the opposite sides of the top of the fixing plate 4 along the length direction, and a third positioning hole 21 is provided on the fixture body 6, which is aligned with the third positioning pin 20, and the fixture body 6 is positioned by the third positioning pin 20 and fixed by the third screw 19, which improves the stability of the fixture body 6 and facilitates the replacement of different fixture bodies 6, is suitable for processing of various types of workpieces, and has good versatility.

[0026] Working principle:

[0027] like Figure 1-4As shown, when the fixture for the rotating axis of the CNC machine is installed and used, the flange 1 is installed on the rotating axis of the CNC machine through the locating bearing 22, the locating rod 2 is positioned by the first locating pin 10 and fixed by the first screw 9, the fixing plate 4 is positioned by the second locating pin 15 and fixed by the second screw 14, the fixture body 6 is positioned by the third locating pin 20 and fixed by the third screw 19, so that the support rod 3 supports the side of the fixture body 6 along the length direction, effectively enhancing the stability of the fixture body 6, and can effectively reduce the high-frequency resonance during processing; a through hole 5 is provided in the middle of the fixing plate 4, which plays a role in weight reduction and is convenient for installing other spare parts, and has good practicality; it is convenient to replace different fixture bodies 6, suitable for processing various types of workpieces, and has good versatility.

[0028] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A fixture for a CNC machine rotating shaft, comprising a flange (1), characterized in that: The flange (1) is provided with positioning rods (2) arranged opposite to each other, a support rod (3) is vertically fixedly connected to the side of the positioning rod (2) away from the flange (1), a fixing plate (4) is installed between the tops of the two support rods (3), a through hole (5) is provided in the middle of the fixing plate (4), and a clamp body (6) is detachably installed on the top of the fixing plate (4).

2. The fixture for the CNC machine rotating axis according to claim 1, characterized in that: Two first main screw holes (7) are sequentially arranged from top to bottom on a side of the positioning rod (2) close to the flange (1), and first secondary screw holes (8) are arranged on a side of the flange (1) away from the positioning rod (2) and aligned one by one with the first main screw holes (7). The first main screw holes (7) and the first secondary screw holes (8) are connected by first screws (9).

3. The fixture for the CNC machine rotating axis according to claim 2, characterized in that: Two first positioning pins (10) are fixedly connected in sequence from top to bottom on one side of the positioning rod (2) close to the flange (1), and the flange (1) is provided with first positioning holes (11) which are aligned one by one with the first positioning pins (10).

4. The fixture for the CNC machine rotating shaft according to claim 1, characterized in that: Three second secondary screw holes (12) are provided on opposite sides of the top of the fixing plate (4) along the width direction. The three second secondary screw holes (12) are arranged in sequence along the length direction of the fixing plate (4). The top of the support rod (3) is provided with a second main screw hole (13) aligned one by one with the second secondary screw holes (12). The second main screw hole (13) and the second secondary screw hole (12) are connected by a second screw (14).

5. The fixture for the CNC machine rotating shaft according to claim 4, characterized in that: Two second positioning pins (15) are fixedly connected in sequence to the top of the support rod (3) along the length direction, and the fixing plate (4) is provided with second positioning holes (16) which are aligned one by one with the second positioning pins (15).

6. The fixture for the CNC machine rotating axis according to claim 1, characterized in that: Two third main screw holes (17) are provided on opposite sides of the top of the fixing plate (4) along the length direction. The two third main screw holes (17) are arranged in sequence along the width direction of the fixing plate (4). The top of the clamp body (6) is provided with third auxiliary screw holes (18) aligned one by one with the third main screw holes (17). The third main screw holes (17) and the third auxiliary screw holes (18) are connected by third screws (19).

7. The fixture for the CNC machine rotating axis according to claim 6, characterized in that: The top of the fixing plate (4) is fixedly connected to two opposite sides along the length direction with third positioning pins (20), and the clamp body (6) is provided with a third positioning hole (21) aligned with the third positioning pin (20).

8. The fixture for the CNC machine rotating shaft according to claim 1, characterized in that: A positioning bearing (22) is fixedly connected to the side of the flange (1) away from the positioning rod (2).

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