Numerical control tool self-locking chuck

Abstract

The utility model discloses a numerical control cutter self-locking chuck which comprises a clamp head, a clamping hole is formed in the front side wall of the clamp head, an inner hole and a bottom sliding groove are formed in the clamp head, a self-locking structure is arranged in the inner hole, and a clamping groove is formed in the bottom sliding groove. The self-locking structure comprises a bottom moving block, a bottom sliding block, a bottom upper connector, a bottom spring, a bottom lower connector, a rotating rod, a connecting shaft, a front lower connector, a front spring, a front upper connector, a front moving block, an anti-skid gasket, a side sliding block and a pull rope, and the bottom moving block is in a wedge shape. By means of the structure, a cutter is inserted into the clamping hole, one end of the cutter directly abuts against the bottom of the clamp head, the bottom moving block moves upwards, the bottom spring presses the rotating rod to rotate, then the front moving block moves downwards, clamping is completed, a self-locking structure forms stable balance, when dismounting is needed, the front moving block moves upwards by pulling the pull rope, balance is damaged, and therefore the cutter is loosened, operation is simple, and the dismounting efficiency is high. Disassembly and assembly are convenient, and the structure is stable.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control tool clamping, in particular to a numerical control tool self-locking chuck. Background Art

[0002] CNC machine tool is the abbreviation of digital control machine tool, which is an automated machine tool equipped with a program control system. The control system can logically process programs specified by control codes or other symbolic instructions, decode them, express them in coded numbers, and input them into the CNC device through information carriers. After calculation and processing, the CNC device sends various control signals to control the movement of the machine tool and automatically process the parts according to the shape and size required by the drawing.

[0003] In the existing CNC tool clamping process, manual clamping operations are generally required, which is too cumbersome and inconvenient for assembly and disassembly. Utility Model Content

[0004] The utility model aims to provide a self-locking chuck for numerically controlled tools. The tool is inserted into the clamping hole, one end of the tool directly contacts the bottom of the clamp head, and the bottom moving block is moved upward, the pressing rod on the moving block rotates, and then the front moving block is moved downward, and the clamping is completed. The self-locking structure forms a stable balance. When disassembly is required, the pull rope is pulled to move the front moving block upward, the balance is destroyed, and the tool is released. The utility model has simple operation, convenient disassembly and assembly, and a stable structure.

[0005] To achieve the above-mentioned purpose, a self-locking chuck for a numerically controlled tool is provided, comprising: a chuck head, a chuck hole is arranged on the front side wall of the chuck head, an inner hole and a bottom slide groove are arranged inside the chuck head, a self-locking structure is arranged inside the inner hole, and the self-locking structure comprises a bottom moving block, a bottom sliding block, a bottom upper connecting head, a bottom spring, a bottom connecting head, a rotating rod, a connecting shaft, a front lower connecting head, a front spring, a front upper connecting head, a front moving block, an anti-slip gasket, a side sliding block and a pull rope, the bottom moving block is wedge-shaped, a bottom sliding block is fixedly connected to the rear side wall of the bottom moving block, the top of the bottom moving block is rotatably connected to the bottom upper connecting head, the top of the bottom upper connecting head is fixedly connected to the bottom spring, and the top of the bottom spring is fixedly connected to the bottom The bottom of the front upper connecting head is rotatably connected to the front moving block, and the bottom of the front moving block is fixedly connected to the anti-skid pad, and the left and right side walls of the front moving block are fixedly connected, and the top of the front moving block is fixedly connected to the pull rope, and the inside of the clamp head is provided with side slide grooves, and the side slide grooves are located on the left and right sides of the inner hole.

[0006] According to the self-locking chuck for numerically controlled tools, the number of the inner holes is three and they are distributed in an annular shape on the outside of the inner holes.

[0007] According to the self-locking chuck for numerically controlled tools, the number of the self-locking structures is three and they are distributed in an annular manner inside the inner hole.

[0008] According to the self-locking chuck for numerically controlled tools, the number of the bottom slide grooves is three and they are distributed in a ring shape inside the fixture head, and the bottom sliding blocks are all located inside the bottom slide grooves.

[0009] According to the self-locking chuck for numerically controlled tools, the side slide grooves are provided in a plurality and are evenly distributed on both sides of the front moving block, and the side sliding blocks are all located inside the side slide grooves.

[0010] According to the self-locking chuck for numerically controlled tools, the top of the pull rope passes through the front upper connecting head, the front lower connecting head, the rotating rod and the clamp head.

[0011] The above scheme has the beneficial effects: by arranging the clamp head, clamping hole, inner hole, bottom slide groove, bottom movement, bottom slider, bottom upper connecting head, bottom spring, bottom upper connecting head, rotating rod, connecting shaft, front lower connecting head, front spring, front upper connecting head, front moving block, anti-slip gasket, side slider and pull rope, the tool is inserted into the clamp hole, one end of the tool directly touches the bottom of the clamp head, and the bottom moving block moves up, the bottom spring compresses the rotating rod to rotate, and then the front moving block moves down, and the clamping is completed, the self-locking structure forms a stable balance, when disassembly is required, the pull rope is pulled to move the front moving block up, the balance is destroyed and the tool is loosened, the operation is simple, the disassembly and assembly are convenient, and the structure is stable.

[0012] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0014] Figure 1 This is a front view of a self-locking chuck for a CNC tool according to the utility model;

[0015] Figure 2 It is a side sectional view of a self-locking chuck for a CNC tool according to the utility model;

[0016] Figure 3 This is the internal structure diagram of a self-locking chuck for a CNC tool according to the utility model;

[0017] Figure 4The utility model is a front section view of a self-locking chuck for a numerically controlled tool.

[0018] Legend:

[0019] 1. Clamp head; 2. Clamp hole; 3. Inner hole; 4. Bottom slide groove; 5. Bottom moving block; 6. Bottom slider; 7. Bottom upper connector; 8. Bottom spring; 9. Bottom connector; 10. Turnbar; 11. Connecting shaft; 12. Front lower connector; 13. Front spring; 14. Front upper connector; 15. Front moving block; 16. Anti-slip pad; 17. Side slider; 18. Pull rope; 19. Side slide groove. DETAILED DESCRIPTION

[0020] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0021] Reference Figure 1-4The utility model embodiment is a self-locking chuck for numerical control tools, which includes: a fixture head 1, a clamping hole 2 is arranged on the front side wall of the fixture head 1, an inner hole 3 and a bottom slide 4 are arranged inside the fixture head 1, the number of the inner holes 3 is arranged in three, and they are annularly distributed on the outside of the inner hole 3, the number of the bottom slide 4 is arranged in three, and they are annularly distributed inside the fixture head 1, the bottom sliders 6 are all located inside the bottom slide 4, the inner hole 3 is provided with a self-locking structure, and the self-locking structure includes a bottom moving block 5, a bottom slider 6, a bottom upper connector 7, a bottom spring 8, a bottom lower connector 9, A rotating rod 10, a connecting shaft 11, a front lower connecting head 12, a front spring 13, a front upper connecting head 14, a front moving block 15, an anti-slip pad 16, a side slider 17 and a pull rope 18. The bottom moving block 5 is wedge-shaped, and a bottom slider 6 is fixedly connected to the rear side wall of the bottom moving block 5. The top of the bottom moving block 5 is rotatably connected to the bottom upper connecting head 7, and the top of the bottom upper connecting head 7 is fixedly connected to the bottom spring 8. The top of the bottom spring 8 is fixedly connected to the bottom connecting head 9, and the top of the bottom connecting head 9 is rotatably connected to the rotating rod 10. The left and right side walls of the rotating rod 10 are fixedly connected to the connecting shaft 1 1, the rotating rod 10 is rotatably connected to the clamp head 1 through the connecting shaft 11, the bottom of the rotating rod 10 away from the bottom connecting head 9 is rotatably connected to the front lower connecting head 12, the bottom of the front lower connecting head 12 is fixedly connected to the front spring 13, the bottom of the front spring 13 is fixedly connected to the front upper connecting head 14, the bottom of the front upper connecting head 14 is rotatably connected to the front moving block 15, the bottom of the front moving block 15 is fixedly connected to the anti-skid pad 16, when the tool is clamped, the left and right side walls of the front moving block 15 are fixedly connected to the side sliders 17, the front moving block 1 5 is fixedly connected with a pull rope 18 at the top, and the top of the pull rope 18 passes through the front upper connector 14, the front lower connector 12, the rotating rod 10 and the clamp head 1, and is used to unlock the self-locking structure. There are three self-locking structures, which are annularly distributed inside the inner hole 3. The tool is inserted into the clamp hole 2, and one end of the tool directly touches the bottom of the clamp head 1, and the bottom moving block 5 moves up, and the bottom spring 8 presses the rotating rod 10 to rotate, thereby moving the front moving block 15 downward, and completing the clamping, and the self-locking structure forms a stable balance. At this time, the bottom spring 8 and the front spring 13 are not in the maximum compression position.

[0022] The fixture head 1 is provided with side slide grooves 19 inside, and the side slide grooves 19 are located on the left and right sides of the inner hole 3 . There are multiple side slide grooves 19 , which are evenly distributed on both sides of the front moving block 15 , and the side sliding blocks 17 are all located inside the side slide grooves 19 .

[0023] Working principle: insert the tool into the clamping hole 2. During the continuous deepening process, the tool pushes the bottom moving block 5 to move on the bottom slide groove 4 and forces the bottom spring 8 to be compressed. The rotating rod 10 rotates to make the front spring 13 shrink downward and push the front moving block 15 to move on the side slide groove 19, forming an inward contraction phenomenon of the front moving block 15, thereby clamping the tool. When the tool can neither go deeper nor be pulled out, the internal self-locking structure is balanced and the tool is clamped. When it needs to be disassembled, pull the pull rope 18, and the front moving block 15 moves up due to external force, the balance is broken, and the rotating rod 10 rotates in the opposite direction, thereby releasing the tool.

[0024] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A self-locking chuck for a numerically controlled tool, comprising: A clamp head (1), characterized in that a clamp hole (2) is provided on the front side wall of the clamp head (1), an inner hole (3) and a bottom slide groove (4) are provided inside the clamp head (1), a self-locking structure is provided inside the inner hole (3), and the self-locking structure comprises a bottom moving block (5), a bottom sliding block (6), a bottom upper connecting head (7), a bottom spring (8), a bottom lower connecting head (9), a rotating rod (10), a connecting shaft (11), a front lower connecting head (12), a front spring (13), The bottom moving block (5) is wedge-shaped, and a bottom sliding block (6) is fixedly connected to the rear side wall of the bottom moving block (5). The top of the bottom moving block (5) is rotatably connected to a bottom upper connecting head (7). The top of the bottom upper connecting head (7) is fixedly connected to a bottom spring (8). The top of the bottom spring (8) is fixedly connected to a bottom lower connecting head (9). The top of the connecting head (9) is rotatably connected to a rotating rod (10), and the left and right side walls of the rotating rod (10) are fixedly connected to connecting shafts (11). The rotating rod (10) is rotatably connected to the clamp head (1) through the connecting shaft (11). The bottom of the end of the rotating rod (10) away from the lower connecting head (9) is rotatably connected to a front lower connecting head (12), and the bottom of the front lower connecting head (12) is fixedly connected to a front spring (13), and the bottom of the front spring (13) is fixedly connected to a front upper spring (13). A connecting head (14), the bottom of the front upper connecting head (14) is rotatably connected to a front moving block (15), the bottom of the front moving block (15) is fixedly connected to an anti-skid pad (16), the left and right side walls of the front moving block (15) are fixedly connected to side sliding blocks (17), the top of the front moving block (15) is fixedly connected to a pull rope (18), and the inside of the clamp head (1) is provided with a side sliding groove (19), and the side sliding groove (19) is located on the left and right sides of the inner hole (3).

2. A CNC tool self-locking chuck according to claim 1, characterized in that: The number of the inner holes (3) is three and they are distributed in an annular manner on the outside of the inner hole (3).

3. A self-locking chuck for numerically controlled tools according to claim 2, characterized in that: The number of the self-locking structures is three and they are distributed in an annular manner inside the inner hole (3).

4. A CNC tool self-locking chuck according to claim 2, characterized in that: The number of the bottom slide grooves (4) is three and they are distributed in a ring shape inside the clamp head (1), and the bottom sliding blocks (6) are all located inside the bottom slide grooves (4).

5. The self-locking chuck for numerically controlled tools according to claim 2, characterized in that: The side sliding grooves (19) are provided in a plurality and are evenly distributed on both sides of the front moving block (15), and the side sliding blocks (17) are all located inside the side sliding grooves (19).

6. A CNC tool self-locking chuck according to claim 2, characterized in that: The top of the pull rope (18) passes through the front upper connecting head (14), the front lower connecting head (12), the rotating rod (10) and the clamp head (1).

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