Multi-angle numerical control tool for intelligent numerical control machining center

Abstract

The multi-angle numerical control tool for the intelligent numerical control machining center comprises a power telescopic part, a tool bit and a tool bar, the power telescopic part is composed of a telescopic assembly and a power assembly, a special-shaped cavity machining mechanism and an assembly connecting mechanism are arranged in the tool bar, and the special-shaped cavity machining mechanism comprises an electric telescopic rod and a wingspan tool. The surface of the electric telescopic rod is electrically connected with a cable, the electric telescopic rod is arranged in the cutter rod, the two wingspan cutters are both rotationally connected with the cutter rod, the lower ends of the wingspan cutters are fixedly connected with a prying frame, two sliding grooves are formed in the prying frame, sliding blocks are slidably connected into the two sliding grooves, and a rotating shaft is rotationally connected between the two sliding blocks. According to the multi-angle numerical control cutter for the intelligent numerical control machining center, by adjusting the unfolding amplitude and the vertical height of the wingspan cutter, the diversified and high-precision machining requirements of a special-shaped cavity structure in a material are met.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, in particular to a multi-angle CNC tool for an intelligent CNC processing center. Background Art

[0002] In the intelligent CNC machining center, CNC tools are controlled by the computer numerical control system to achieve automated processing. The automation characteristics of the machining center reduce the need for manual operation and reduce the risk of workers working in dangerous environments. At the same time, the CNC system can also realize digital production management, helping enterprises to optimize production, control quality and maintain equipment. CNC tools refer to the general term for various tools used in conjunction with CNC machine tools. These tools complete the precision processing of complex parts under the automated control of the intelligent CNC machining center.

[0003] As an important part of intelligent CNC machining centers, the performance, quality and function of CNC tools directly affect the machining efficiency, machining range and product quality. However, the current mainstream CNC tool operation mode is generally a linear insertion and extraction machining strategy. This linear machining method is difficult to accurately shape the cavity into a complex special-shaped structure when processing the inside of the material. Due to the extremely high machining complexity of special-shaped cavities, direct machining is difficult to achieve ideal accuracy and morphological control, so the industry often uses the method of prefabricating parts and then splicing them together to construct structures with special-shaped cavities. Although this method can circumvent the difficulty of direct machining, it sacrifices the machining consistency and performance stability of the overall material, which affects the quality of the final product. Summary of the invention

[0004] The purpose of the present invention is to provide a multi-angle CNC tool for an intelligent CNC machining center to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a multi-angle CNC tool for an intelligent CNC machining center, comprising a power telescopic part, a tool head and a tool rod, the power telescopic part is composed of a telescopic assembly and a power assembly, a special-shaped cavity processing mechanism and a component connecting mechanism are arranged inside the tool rod, the special-shaped cavity processing structure comprises an electric telescopic rod and a wing span knife, a cable is electrically connected to the surface of the electric telescopic rod, the cable is electrically connected to the power telescopic part, the electric telescopic rod is arranged inside the tool rod, two wing span knives are rotatably connected to the tool rod, a prying frame is fixedly connected to the lower end of the wing span knife, two slide grooves are provided on the prying frame, sliding blocks are slidably connected to the inside of the two slide grooves, a rotating shaft is rotatably connected between the two sliding blocks, a connecting rotating frame is fixedly connected to the surface of the two rotating shafts, and the upper end of the connecting rotating frame is connected to the output end of the electric telescopic rod through a component connecting mechanism.

[0006] As a preferred technical solution of the present invention, the component connection mechanism includes a docking sleeve, a connecting rotating column, a first bearing and a docking block, the docking sleeve is fixedly connected to the top of the connecting rotating frame, the docking block is arranged inside the docking sleeve, the connecting rotating column is fixedly connected to the docking block, and the output shaft of the electric telescopic rod is rotatably connected to the connecting rotating column through the first bearing.

[0007] As a preferred technical solution of the present invention, two rotation limiting blocks are fixedly connected inside the docking sleeve.

[0008] As a preferred technical solution of the present invention, a connecting line accommodating tube is fixedly connected to the surface of the power telescopic part, a connecting column is fixedly connected to the interior of the lower end of the connecting line accommodating tube, the cable passes through the connecting column and is located inside the connecting line accommodating tube, a connecting ring is provided at the lower end of the connecting column, the connecting ring and the connecting column are fixedly connected by bolts, and the connecting ring is rotatably connected to the interior of the upper end of the knife rod.

[0009] As a preferred technical solution of the present invention, a plurality of balls are arranged inside the connecting ring.

[0010] As a preferred technical solution of the present invention, a second bearing is fixedly sleeved on the surface of the connecting column, and a spring chuck is installed on the lower surface of the outer ring of the second bearing.

[0011] As a preferred technical solution of the present invention, a second gear is fixedly sleeved on the outer ring of the second bearing, and a first gear is fixedly connected to the power output shaft of the power assembly on the power telescopic part, and the first gear is meshed with the second gear.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. When the cutter head penetrates deep into the workpiece, the electric telescopic rod adjusts the expansion width of the two wing-span knives and the power telescopic part controls the position of the two wing-span knives on the vertical axis, and relies on the high-speed rotation power of the cutter head and the cutter rod to perform the processing of the workpiece. By adjusting the expansion range and vertical height of the wing-span knives, the diversified and high-precision processing requirements of the special-shaped cavity structure inside the material are realized.

[0013] 2. In the process of realizing the control of the wingspan knife, the electric telescopic rod is a non-rotating component that is only used to drive the wingspan knife to unfold. The power can be transmitted to the cutter head and the cutter bar through the spring chuck, the first gear and the second gear, so that the cutter head and the cutter bar can rotate at high speed, thereby meeting the processing requirements of the workpiece. It ensures that the electric telescopic rod remains stationary and does not rotate under normal working conditions, and at the same time realizes the power transmission to the cutter head and the cutter bar.

[0014] 3. When it is necessary to replace the cutter head and the cutter rod of different models, the present invention loosens the spring chuck and rotates the cutter rod clockwise to align the docking block with the matching opening on the docking sleeve, and then the docking block can be directly pulled out from the docking sleeve, thereby realizing the rapid separation of the cutter head and the cutter rod. There is no need to disassemble other related components during the whole process, which significantly improves the efficiency and convenience of the replacement operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the structure of the cutter head and the cutter rod of the present invention; Figure 3 It is a schematic diagram of the structure inside the knife bar of the present invention; Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 5 It is a schematic structural diagram of the wingspan knife part of the present invention; Figure 6 It is a structural schematic diagram of the component connection mechanism of the present invention; Figure 7 It is a structural schematic diagram of the docking sleeve of the present invention; Figure 8 It is a structural schematic diagram of the docking sleeve, the rotation limiting block and the docking block of the present invention; Fig. 9 This is a schematic diagram of the structure inside the connection type line containing tube of the present invention; Fig.10 It is a schematic structural diagram of the connecting column part of the present invention.

[0016] In the figure: 1. power telescopic part; 2. cutter head; 3. cutter rod; 301. first gear; 302. second gear; 303. electric telescopic rod; 304. wing span knife; 305. spring clamp; 306. cable; 307. first bearing; 308. connecting rotating column; 309. connecting rotating frame; 310. prying frame; 311. sliding block; 312. rotating shaft; 313. docking sleeve; 314. docking block; 315. rotation limiting block; 316. slide groove; 317. connecting line containing tube; 318. ball; 319. connecting column; 320. second bearing; 321. connecting ring; 322. bolt. DETAILED DESCRIPTION

[0017] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-10 , the present invention provides a technical solution for multi-angle CNC tools for intelligent CNC machining centers: according to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Fig. 9 and Fig.10 As shown, a multi-angle CNC tool for an intelligent CNC machining center includes a power telescopic part 1, a tool head 2 and a tool rod 3. The power telescopic part 1 is composed of a telescopic component and a power component. The interior of the tool rod 3 is provided with a special-shaped cavity processing mechanism and a component connection mechanism. The special-shaped cavity processing structure includes an electric telescopic rod 303 and a wingspan knife 304. The surface of the electric telescopic rod 303 is electrically connected with a cable 306. The cable 306 is connected to the power telescopic part 1 to realize power supply and transmission of electrical signals. The electric telescopic rod 303 is arranged inside the tool rod 3. The electric telescopic rod 303 controls the connection of the wingspan knife 304. 4 rotation and expansion, the two wing-span knives 304 are both rotatably connected to the knife rod 3, and by controlling the expansion range of the two wing-span knives 304 and their positions in the vertical direction, it is possible to achieve diversified processing of the complex cavity structure inside the material and meet the processing requirements of the special-shaped cavity structure. The lower end of the wing-span knife 304 is fixedly connected to a prying frame 310, and the prying frame 310 is provided with two sliding grooves 316. The insides of the two sliding grooves 316 are slidably connected to sliding blocks 311, and a rotating shaft 312 is rotatably connected between the two sliding blocks 311. The surfaces of the two rotating shafts 312 are fixedly connected to a connecting rotating frame 309.

[0019] Among them, a connecting line accommodating tube 317 is fixedly connected to the surface of the power telescopic part 1, and a connecting column 319 is fixedly connected to the lower end of the connecting line accommodating tube 317. The cable 306 passes through the connecting column 319 and is located inside the connecting line accommodating tube 317. The connecting line accommodating tube 317 can prevent the cable 306 from being exposed and causing damage to the cable 306 during processing. A connecting ring 321 is provided at the lower end of the connecting column 319. The connecting ring 321 and the connecting column 319 are fixedly connected by bolts 322, which are used to install the tool assembly on the power telescopic part 1. The connecting ring 321 is rotatably connected to the inner part of the upper end of the tool rod 3. A plurality of balls 318 are provided inside the connecting ring 321. When downward pressure is applied and the connection is rotated during processing, the sliding friction is changed to rolling friction through the balls 318, thereby reducing the friction resistance and reducing the wear caused by friction.

[0020] The surface of the connecting column 319 is fixedly sleeved with a second bearing 320, and the lower surface of the outer ring of the second bearing 320 is installed with a spring chuck 305. The upper end of the tool rod 3 is locked by the spring chuck 305, and the tool rod 3 and the tool head 2 can be driven to rotate when the spring chuck 305 rotates. The outer ring of the second bearing 320 is fixedly sleeved with a second gear 302, and the power output shaft of the power component on the power telescopic part 1 is fixedly connected with the first gear 301, and the first gear 301 is meshed with the second gear 302. When the power component in the power telescopic part 1 makes the first gear 301 and the second gear 302 rotate in coordination, the power can be transmitted to the tool head 2 and the tool rod 3 through the first gear 301 and the second gear 302, so that the tool head 2 and the tool rod 3 are rotated to realize the processing of the workpiece, and the electric telescopic rod 303 can remain stationary without rotating in the working state.

[0021] When in use, the connecting ring 321 and the connecting column 319 are fixed together by bolts 322, so that the tool assembly consisting of the cutter head 2 and the cutter bar 3 is installed on the power telescopic part 1. Then the cable 306 is connected to the power telescopic part 1 to realize the power supply and the transmission of electrical signals. Then the upper end of the cutter bar 3 is locked by the spring chuck 305 to complete the assembly of the tool assembly consisting of the cutter head 2 and the cutter bar 3. The spring chuck 305 is a common method in the prior art and will not be described in detail here.

[0022] Since the power telescopic part 1 installed on the CNC machine tool has the ability of synchronous drive and high-speed rotation through the power screw and the motor, it can drive the cutter head 2 and the cutter rod 3 to move flexibly and cut at high speed. When the power component in the power telescopic part 1 causes the first gear 301 and the second gear 302 to rotate in coordination, the power will be transmitted to the cutter head 2 and the cutter rod 3, causing the cutter head 2 and the cutter rod 3 to rotate to achieve the processing of the workpiece. When the cutter head 2 penetrates into the material, the electric telescopic rod 303 drives the connecting rotating frame 309 to rise, pulling the wingspan knife 304 to rotate and unfold. By controlling the unfolding range of the two wingspan knives 304 and their position in the vertical direction, it is possible to achieve diversified processing of the complex cavity structure inside the material, meeting the processing requirements of high precision and complex shapes.

[0023] according to Figure 6 , Figure 7 and Figure 8As shown, the upper end of the connecting rotating frame 309 is connected to the output end of the electric telescopic rod 303 through an assembly connecting mechanism, and the assembly connecting mechanism includes a docking sleeve 313, a connecting rotating column 308, a first bearing 307 and a docking block 314. The docking sleeve 313 is fixedly connected to the top of the connecting rotating frame 309, and the docking block 314 is arranged inside the docking sleeve 313. The docking block 314 is located in the docking sleeve 313, so that the connection between the cutter head 2 and the cutter rod 3 to the electric telescopic rod 303 can be realized. The connecting rotating column 308 is fixedly connected to the docking block 314, and the output shaft of the electric telescopic rod 303 is rotatably connected to the connecting rotating column 308 through the first bearing 307. Two rotation limiting blocks 315 are fixedly connected to the inside of the docking sleeve 313. When the cutter head 2 and the cutter rod 3 rotate clockwise, the two rotation limiting blocks 315 resist the docking block 314, so that the docking block 314 is just stuck in the docking sleeve 313 and cannot be separated, without affecting the rotation of the cutter head 2 and the cutter rod 3.

[0024] In specific use, when it is necessary to replace the cutter head 2 and the cutter bar 3 of different models, first loosen the spring chuck 305, then rotate the cutter bar 3 in the opposite direction of rotation during processing, that is, rotate clockwise, so that the docking block 314 is aligned with the matching opening on the docking sleeve 313. The connecting rotating column 308 and the docking block 314 are connected as a whole, and can be directly pulled out from the docking sleeve 313, so that the cutter head 2 and the cutter bar 3 are quickly separated. The two rotation limiting blocks 315 are used to resist the docking block 314 when the cutter head 2 and the cutter bar 3 rotate clockwise during processing, so that the docking block 314 is stuck in the docking sleeve 313 and cannot be separated, without affecting the rotation of the cutter head 2 and the cutter bar 3.

[0025] Finally, it should be noted that the above description 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 replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-angle CNC tool for an intelligent CNC machining center, comprising a power telescopic part (1), a tool head (2) and a tool rod (3), wherein the power telescopic part (1) is composed of a telescopic component and a power component, and is characterized in that: The tool rod (3) is provided with a special-shaped cavity processing mechanism and a component connection mechanism inside; The special-shaped cavity processing structure comprises an electric telescopic rod (303) and a wing-span knife (304), the surface of the electric telescopic rod (303) is electrically connected to a cable (306), the electric telescopic rod (303) is arranged inside a knife rod (3), the two wing-span knives (304) are both rotatably connected to the knife rod (3), the lower end of the wing-span knife (304) is fixedly connected to a prying frame (310), the prying frame (310) is provided with two sliding grooves (316), the inside of the two sliding grooves (316) are both slidably connected to a sliding block (311), the two sliding blocks (311) are rotatably connected between them, the surfaces of the two rotating shafts (312) are fixedly connected to a connecting rotating frame (309), and the upper end of the connecting rotating frame (309) is connected to the output end of the electric telescopic rod (303) through a component connection mechanism.

2. The multi-angle CNC tool for an intelligent CNC machining center according to claim 1, characterized in that: The component connection mechanism comprises a docking sleeve (313), a connecting rotating column (308), a first bearing (307) and a docking block (314); the docking sleeve (313) is fixedly connected to the top end of the connecting rotating frame (309); the docking block (314) is arranged inside the docking sleeve (313); the connecting rotating column (308) is fixedly connected to the docking block (314); and the output shaft of the electric telescopic rod (303) is rotatably connected to the connecting rotating column (308) via the first bearing (307).

3. The multi-angle CNC tool for an intelligent CNC machining center according to claim 2, characterized in that: Two rotation limiting blocks (315) are fixedly connected inside the docking sleeve (313).

4. The multi-angle CNC tool for an intelligent CNC machining center according to claim 1, characterized in that: A connecting line accommodating tube (317) is fixedly connected to the surface of the power telescopic part (1); a connecting column (319) is fixedly connected to the interior of the lower end of the connecting line accommodating tube (317); the cable (306) passes through the connecting column (319) and is located inside the connecting line accommodating tube (317); a connecting ring (321) is provided at the lower end of the connecting column (319); the connecting ring (321) is fixedly connected to the connecting column (319) by a bolt (322); and the connecting ring (321) is rotatably connected to the interior of the upper end of the knife rod (3).

5. The multi-angle CNC tool for an intelligent CNC machining center according to claim 4, characterized in that: A plurality of rolling balls (318) are arranged inside the connecting ring (321).

6. The multi-angle CNC tool for an intelligent CNC machining center according to claim 4, characterized in that: A second bearing (320) is fixedly sleeved on the surface of the connecting column (319), and a spring chuck (305) is installed on the lower surface of the outer ring of the second bearing (320).

7. The multi-angle CNC tool for an intelligent CNC machining center according to claim 6, characterized in that: A second gear (302) is fixedly sleeved on the outer ring of the second bearing (320), and a first gear (301) is fixedly connected to the power output shaft of the power assembly on the power telescopic part (1), and the first gear (301) is meshed with the second gear (302).

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