A new numerical control machine tool tool magazine

Abstract

The utility model provides a novel numerical control machine tool tool magazine, contain cutter head, speed reducer, tool claw, the two surfaces of cutter head all are sequentially provided with a plurality of recessed groove arrays from inside to outside, recessed groove array contains the sector recessed groove that is annular array distribution on cutter head, is provided with sector hollow groove between the sector recessed groove on the two surfaces of cutter head, forms radial muscle part between adjacent two sector recessed grooves of same recessed groove array, forms circumferential muscle part between two sector recessed grooves of adjacent two recessed groove arrays, the top surface center of cutter head is provided with the column type connecting portion, and speed reducer is connected with column type connecting portion. When cutter head is acted on by greater external force, can flexibly deform adaptively to unload external force, can reduce the wear and tear of tool claw, improve the service life of tool claw, realize the lightweight of tool magazine simultaneously, reduce tool magazine manufacturing cost, and the radial muscle part and circumferential muscle part on cutter head can provide enough rigidity for cutter head, ensure that cutter head has the rigidity performance required to keep tool claw, have better flexibility.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, and more particularly to a novel CNC machine tool magazine. Background Technology

[0002] CNC machine tools are mainly used for cutting internal and external cylindrical surfaces, internal and external conical surfaces with arbitrary cone angles, complex rotating internal and external curved surfaces, and cylindrical and conical threads of shaft or disc parts. They can also perform grooving, drilling, reaming, boring, and other machining operations. To achieve rapid tool changing in CNC machine tools, a tool magazine is installed. The tool magazine mainly consists of a tool disc and tool holders distributed on the tool disc. The tool to be changed is moved from the tool magazine to below the spindle, and by driving the spindle head downwards, the tool holder can be inserted into the spindle mounting port, thus realizing the tool change operation. Existing tool magazines use a closed plate-type tool disc. Because this type of tool disc is very rigid, during tool changing, when the tool disc is subjected to a large thrust, the tool disc cannot flex and deform to relieve the force, which easily increases the wear of the tool holders and reduces their service life. Summary of the Invention

[0003] The problem to be solved by this utility model is to provide a new type of CNC machine tool magazine, in which the tool head can bend and deform according to the magnitude of the force to relieve the force and reduce the wear of the tool claws.

[0004] To solve the above-mentioned technical problems, a novel CNC machine tool tool magazine provided by this utility model is provided, comprising a tool disc, a reducer, and tool claws evenly distributed on the tool disc. Several groove arrays are sequentially arranged from the inside to the outside on both surfaces of the tool disc. The groove array includes fan-shaped grooves arranged in a ring array on the tool disc. The fan-shaped grooves on the two surfaces of the tool disc are correspondingly arranged, and a fan-shaped hollow groove is provided through between the fan-shaped grooves on the two surfaces of the tool disc. A radial rib is formed between two adjacent fan-shaped grooves in the same groove array, and a circumferential rib is formed between two fan-shaped grooves in two adjacent groove arrays. A columnar connecting part is provided at the center of the top surface of the tool disc, and the reducer is drivenly connected to the columnar connecting part.

[0005] Preferably, the cutting claw includes a cutting claw seat fixedly connected to the cutting disc, a cutting claw body, a first spring, a guide shaft, two cutting claw arms movably disposed on the cutting claw body, and a tail cover. The cutting claw body is hinged to one side of the cutting claw seat. A movable hole is provided through the cutting claw seat. The guide shaft is movably disposed in the movable hole. The tail cover is detachably connected to one end of the cutting claw seat and closes one end of the movable hole. A first spring groove is provided at one end of the guide shaft. The first spring is disposed in the first spring groove and abuts against one end of the first spring groove and the tail cover. A connecting rod is hinged between the other end of the guide shaft and the outer side of the cutting claw body. A first contact bearing and a second contact bearing are rotatably connected to the inner side of the cutting claw body.

[0006] Preferably, the cutter arm includes a cutter arm and a cutter wheel rotatably connected to one end of the cutter arm. Both sides of the cutter claw body are provided with swing grooves that match the cutter arm. The cutter arm is hinged to the swing grooves. The other end of the cutter arm is provided with a limit post. A spring hole is connected between the two swing grooves. A second spring is provided in the spring hole and sleeved between the limit posts of the two cutter arms.

[0007] Preferably, the reducer includes a support, a worm gear, a first transmission component, and a second transmission component. The support has a cavity inside, in which a first bearing and a second bearing are disposed. The worm gear is connected to the first bearing and the second bearing. The first transmission component includes a first connecting end, a worm wheel portion, a first gear portion, and a second connecting end. A third bearing and a fourth bearing are disposed in the cavity. The first connecting end and the second connecting end are respectively connected to the third bearing and the fourth bearing. The worm wheel portion meshes with the worm gear. The second transmission component includes a rotating shaft and a second gear. The rotating shaft includes a third connecting end, a gear connecting section, a fourth connecting end, and a mating end. A fifth bearing and a sixth bearing are disposed in the cavity. The third connecting end and the fourth connecting end are respectively connected to the fifth bearing and the sixth bearing. The top center of the cylindrical connecting part has a socket that matches the mating end. The mating end is connected to the socket. The fourth connecting end is connected to the cylindrical connecting part by a screw. The second gear is connected to the gear connecting section and meshes with the first gear portion.

[0008] Preferably, the support is provided with a first bearing hole, a second bearing hole, a third bearing hole, a fourth bearing hole, a fifth bearing hole, and a sixth bearing hole. The first bearing, the second bearing, the third bearing, the fourth bearing, the fifth bearing, and the sixth bearing are respectively provided on the first bearing hole, the second bearing hole, the third bearing hole, the fourth bearing hole, the fifth bearing hole, and the sixth bearing hole. A sealing cap is provided at one end of each of the first bearing hole, the second bearing hole, the third bearing hole, the fourth bearing hole, the fifth bearing hole, and the sixth bearing hole.

[0009] The beneficial effects of this utility model are as follows: This utility model provides a novel CNC machine tool magazine. By sequentially arranging a plurality of groove arrays from the inside to the outside on both surfaces of the tool disc, the groove array is composed of a plurality of fan-shaped grooves distributed in a ring array on the tool disc, and the fan-shaped grooves on both sides of the tool disc are connected by fan-shaped hollow slots. When the tool disc is subjected to a large external force, it can adaptively flex and deform to dissipate the external force, thereby reducing the wear of the tool claws and increasing the service life of the tool claws. At the same time, it achieves the lightweighting of the tool magazine and reduces the manufacturing cost of the tool magazine. The radial and circumferential ribs on the tool disc can provide sufficient rigidity to the tool disc, ensuring that the tool disc has the rigidity performance required to maintain the tool claws and has better flexibility. Attached Figure Description

[0010] Figure 1 A schematic diagram illustrating the external structure of this utility model is provided.

[0011] Figure 2 A bottom view of the present invention is shown.

[0012] Figure 3 A schematic diagram illustrating the structure of the cutter head of this utility model is shown.

[0013] Figure 4 A top view of the present invention is shown.

[0014] Figure 5 This utility model is illustrated. Figure 4 Cross-sectional view at point AA′.

[0015] Figure 6 This utility model is illustrated. Figure 4 Cross-sectional view at BB′.

[0016] Figure 7 A cross-sectional view of the reducer of this utility model is shown.

[0017] Figure 8 A schematic diagram illustrating the structure of the blade claw of this utility model is shown.

[0018] Figure 9 A cross-sectional view of the blade claw of this utility model is shown.

[0019] Reference numerals: 1. Cutter head; 10. Groove array; 100. Fan-shaped groove; 11. Fan-shaped hollow groove; 12. Radial rib; 13. Circumferential rib; 14. Column-shaped connector; 140. Insertion hole; 2. Reducer; 20. Support; 200. Sealing cover; 21. Worm gear; 22. First transmission component; 220. First connecting end; 221. Worm wheel; 222. First gear; 223. Second connecting end; 223. Second transmission component; 230. Rotating shaft; 230. Third connecting end; 230a. Gear connecting section; 230b. Fourth connecting end; 230c. Plug-in end; 23. 0d, second gear 231, first bearing 24, second bearing 25, third bearing 26, fourth bearing 27, fifth bearing 28, sixth bearing 29, cutter pawl 3, cutter pawl seat 30, movable hole 300, cutter pawl body 31, swing movable groove 310, spring hole 311, first spring 32, guide shaft 33, first spring groove 330, cutter arm 34, cutter arm 340, cutter wheel 341, limit post 342, tail cover 35, connecting rod 36, first contact bearing 37, second contact bearing 38, second spring 39. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure.

[0021] Based on the embodiments described in this disclosure, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this disclosure.

[0022] refer to Figure 1-9 .

[0023] This utility model provides a novel CNC machine tool magazine, comprising a tool disc 1, a reducer 2, and tool claws 3 evenly distributed on the tool disc 1. Both surfaces of the tool disc 1 are sequentially provided with a plurality of groove arrays 10 from the inside out. Each groove array 10 includes fan-shaped grooves 100 arranged in a ring array on the tool disc 1. The fan-shaped grooves 100 on both surfaces of the tool disc 1 are correspondingly arranged. A fan-shaped perforated groove 11 is provided through the fan-shaped grooves 100 on both surfaces of the tool disc 1. A radial rib 12 is formed between two adjacent fan-shaped grooves 100 in the same groove array 10, and a circumferential rib 13 is formed between two fan-shaped grooves 100 in two adjacent groove arrays 10. A columnar connecting part 14 is provided at the center of the top surface of the tool disc 1, and the reducer 2 is drivenly connected to the columnar connecting part 14.

[0024] Its working principle is as follows: a number of groove arrays 10 are arranged sequentially from the inside to the outside on both surfaces of the cutter head 1. The groove array 10 is composed of a number of fan-shaped grooves 100 arranged in a ring on the cutter head 1. The fan-shaped grooves 100 on both sides of the cutter head 1 are connected by fan-shaped hollow grooves 11. When the cutter head 1 is subjected to a large external force, it can adaptively flex and deform to dissipate the external force, which can reduce the wear of the cutter claws 3 and improve the service life of the cutter claws 3. At the same time, it can achieve the weight reduction of the tool magazine and reduce the manufacturing cost of the tool magazine. The radial ribs 12 and circumferential ribs 13 on the cutter head 1 can provide sufficient rigidity for the cutter head 1 to ensure that the cutter head 1 has the rigidity required to maintain the cutter claws 3 and has better flexibility.

[0025] Based on the above embodiments, the cutting claw 3 includes a cutting claw seat 30 fixedly connected to the cutting disc 1, a cutting claw body 31, a first spring 32, a guide shaft 33, two blade-holding arms 34 movably disposed on the cutting claw body 31, and a tail cover 35. The cutting claw body 31 is hinged to one side of the cutting claw seat 30. A movable hole 300 is provided through the cutting claw seat 30. The guide shaft 33 is movably disposed in the movable hole 300. The tail cover 35 is detachably connected to one end of the cutting claw seat 30 and closes one end of the movable hole 300. A first spring groove 330 is provided at one end of the guide shaft 33. The first spring 32 is disposed in the first spring groove 330 and abuts between one end of the first spring groove 330 and the tail cover 35. A connecting rod 36 is hinged between the other end of the guide shaft 33 and the outer side of the cutting claw body 31. A first contact bearing 37 and a second contact bearing 38 are rotatably connected to the inner side of the cutting claw body 31. When changing tools, the spindle box is driven downward by the Z-axis module. When the first contact bearing 37 and the second contact bearing 38 are subjected to external force, the cutter pawl body 31 will open, and the guide shaft 33 will move along the movable hole 300 and compress the first spring 32 until the two tool-locking arms 34 of the cutter pawl 3 lock the tool.

[0026] Based on the above embodiments, the cutter arm 34 includes a cutter arm 340 and a cutter wheel 341 rotatably connected to one end of the cutter arm 340. Both sides of the cutter body 31 are provided with swing grooves 310 that match the cutter arm 340. The cutter arm 340 is hinged to the swing grooves 310. A limiting post 342 is provided at the other end of the cutter arm 340. A spring hole 311 connects the two swing grooves 310, and a second spring 39 is provided in the spring hole 311, sleeved between the limiting posts 342 of the two cutter arms 34. During the process of the cutter being inserted between the two cutter wheels 341, the cutter arm 340 can automatically open. After the cutter is inserted between the two cutter wheels 341, the two cutter arms 340 can automatically reset, allowing the two cutter wheels 341 to hold the cutter.

[0027] Based on the above embodiments, the reducer 2 includes a support 20, a worm gear 21, a first transmission component 22, and a second transmission component 23. The support 20 has a cavity inside, in which a first bearing 24 and a second bearing 25 are disposed. The worm gear 21 is connected to the first bearing 24 and the second bearing 25. The first transmission component 22 includes a first connecting end 220, a worm wheel portion 221, a first gear portion 222, and a second connecting end 223. A third bearing 26 and a fourth bearing 27 are disposed in the cavity. The first connecting end 220 and the second connecting end 223 are respectively connected to the third bearing 26 and the fourth bearing 27. The worm wheel portion 221 meshes with the worm gear 21. The second transmission component 23 includes a rotating shaft 23. 0. The second gear 231 and the rotating shaft 230 include a third connecting end 230a, a gear connecting section 230b, a fourth connecting end 230c, and an insertion end 230d. A fifth bearing 28 and a sixth bearing 29 are provided in the cavity. The third connecting end 230a and the fourth connecting end 230c are respectively connected to the fifth bearing 28 and the sixth bearing 29. The top center of the cylindrical connecting part 14 is provided with an insertion hole 140 that matches the insertion end 230d. The insertion end 230d is connected to the insertion hole 140. The fourth connecting end 230c is connected to the cylindrical connecting part 14 by screws. The second gear 231 is connected to the gear connecting section 230b and meshes with the first gear part 222. Specifically, one end of the worm 21 can be connected to the output shaft of the servo motor. Since the worm wheel 221 of the first transmission member 22 is meshed with the worm 21, when the worm 21 is driven to rotate by the servo motor, the worm 21 will drive the first transmission member 22 to rotate. Since the first gear 222 of the first transmission member 22 is meshed with the second gear 231 of the second transmission member 23, the first transmission member 22 will drive the second transmission member 23 to rotate, thereby making the tool disc 1 rotate. The worm 21, the first transmission member 22, and the second transmission member 23 are set in the cavity of the support 20 to avoid contact with debris, increase the protection performance of the tool magazine, ensure smooth and stable operation of the mechanism, realize high-speed tool changing, improve the service life of the tool magazine, have the advantage of simple structure, and reduce working noise.

[0028] Based on the above embodiments, the support 20 is provided with a first bearing hole, a second bearing hole, a third bearing hole, a fourth bearing hole, a fifth bearing hole, and a sixth bearing hole. The first bearing 24, the second bearing 25, the third bearing 26, the fourth bearing 27, the fifth bearing 28, and the sixth bearing 29 are respectively provided on the first bearing hole, the second bearing hole, the third bearing hole, the fourth bearing hole, the fifth bearing hole, and the sixth bearing hole. One end of the first bearing hole, the second bearing hole, the third bearing hole, the fourth bearing hole, the fifth bearing hole, and the sixth bearing hole is provided with a sealing cap 200, which can prevent debris from contaminating the bearing, ensure smooth bearing rotation, and improve the service life of the bearing.

[0029] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A novel CNC machine tool magazine, comprising a tool disc, a reducer, and tool claws evenly distributed on the tool disc, characterized in that, The cutter head has a plurality of groove arrays arranged sequentially from the inside to the outside on both surfaces. The groove array includes fan-shaped grooves arranged in a ring on the cutter head. The fan-shaped grooves on the two surfaces of the cutter head are correspondingly arranged. A fan-shaped hollow groove is provided through the fan-shaped grooves on the two surfaces of the cutter head. A radial rib is formed between two adjacent fan-shaped grooves in the same groove array. A circumferential rib is formed between two fan-shaped grooves in two adjacent groove arrays. A columnar connecting part is provided with a protrusion at the center of the top surface of the cutter head. The reducer is drivenly connected to the columnar connecting part.

2. A novel CNC machine tool magazine according to claim 1, characterized in that, The cutting claw includes a cutting claw seat fixedly connected to the cutting disc, a cutting claw body, a first spring, a guide shaft, two blade-locking arms movably disposed on the cutting claw body, and a tail cap. The cutting claw body is hinged to one side of the cutting claw seat. A movable hole is provided through the cutting claw seat. The guide shaft is movably disposed in the movable hole. The tail cap is detachably connected to one end of the cutting claw seat and closes one end of the movable hole. A first spring groove is provided at one end of the guide shaft. The first spring is disposed in the first spring groove and abuts against one end of the first spring groove and the tail cap. A connecting rod is hinged between the other end of the guide shaft and the outer side of the cutting claw body. A first contact bearing and a second contact bearing are rotatably connected to the inner side of the cutting claw body.

3. A novel CNC machine tool magazine according to claim 2, characterized in that, The blade arm includes a blade arm and a blade wheel rotatably connected to one end of the blade arm. Both sides of the blade claw body are provided with swing grooves that match the blade arm. The blade arm is hinged to the swing grooves. The other end of the blade arm is provided with a limit post. A spring hole is connected between the two swing grooves. A second spring is provided in the spring hole and sleeved between the limit posts of the two blade arms.

4. A novel CNC machine tool magazine according to claim 3, characterized in that, The reducer includes a support, a worm gear, a first transmission component, and a second transmission component. The support has a cavity containing a first bearing and a second bearing. The worm gear is connected to the first and second bearings. The first transmission component includes a first connecting end, a worm wheel portion, a first gear portion, and a second connecting end. The cavity contains a third bearing and a fourth bearing. The first and second connecting ends are respectively connected to the third and fourth bearings. The worm wheel portion meshes with the worm gear. The second transmission component includes a rotating shaft and a second gear. The rotating shaft includes a third connecting end, a gear connecting section, a fourth connecting end, and a mating end. The cavity contains a fifth bearing and a sixth bearing. The third and fourth connecting ends are respectively connected to the fifth and sixth bearings. The top center of the cylindrical connecting portion has a socket matching the mating end. The mating end is connected to the socket. The fourth connecting end is connected to the cylindrical connecting portion by screws. The second gear is connected to the gear connecting section and meshes with the first gear portion.

5. A novel CNC machine tool tool magazine according to claim 4, characterized in that, The support is provided with a first bearing hole, a second bearing hole, a third bearing hole, a fourth bearing hole, a fifth bearing hole, and a sixth bearing hole. The first bearing, the second bearing, the third bearing, the fourth bearing, the fifth bearing, and the sixth bearing are respectively disposed on the first bearing hole, the second bearing hole, the third bearing hole, the fourth bearing hole, the fifth bearing hole, and the sixth bearing hole. A sealing cap is provided at one end of each of the first bearing hole, the second bearing hole, the third bearing hole, the fourth bearing hole, the fifth bearing hole, and the sixth bearing hole.

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