Numerical control cutter with anti-loose handle

Abstract

The utility model discloses a numerical control tool of preventing the loosening of the knife handle relates to numerical control tool technical field, the utility model discloses a sleeve still includes: the anti -unscrewing part is set up in the sleeve, and the anti -unscrewing part sets up in the top of sleeve, wherein, the outer wall of sleeve is equipped with two installation slot, and the two installation slot all are with the anti -unscrewing part is adapted. The utility model discloses set up the anti -unscrewing part, uses, first inserts the tool into the inside of sleeve, in the process of inserting, the limiting slide rail on the tool and the limiting slide groove of sleeve inner wall are mutually adapted, and the effective limit tool occurs autorotation, subsequently, the screw cap on the screw thread mouth is rotated down, and the screw cap exerts pressure on the clamping rod top articulated in two installation slots, and the two clamping rods are shrunk into the installation slot, and its other end is inserted into the tool, realizes the limiting fixed, in the process that the screw cap extrudes the clamping rod, and the rotating block on the clamping rod will drive telescopic link compression spring no.

Description

Technical Field

[0001] This utility model belongs to the field of CNC cutting tool technology, and in particular relates to a CNC cutting tool that prevents the tool holder from loosening. Background Technology

[0002] CNC cutting tools are specialized tools used in CNC machining equipment. They typically consist of a tool head and a tool holder, which connect to the machine tool spindle for precise cutting. During use, if the tool holder becomes loose, it can cause the tool to vibrate during cutting, affecting machining accuracy and surface quality. It may even cause the tool to chip or damage the workpiece. Loosening can also lead to the tool falling off, posing a safety hazard. Therefore, it is essential to prevent the tool holder from becoming loose to ensure the stability, safety, and quality of the machining process.

[0003] However, during the use of existing CNC cutting tools, since the tool is connected to the drive shaft, vibration is easily generated when the tool is subjected to cutting force and the machine tool is running. Over time, this can lead to the tool holder becoming loose, which in turn has an adverse effect on machining efficiency and machining quality. Utility Model Content

[0004] The purpose of this utility model is to provide a CNC cutting tool that prevents the tool holder from loosening. By setting the anti-loosening part, the problem of vibration easily generated when the tool is connected to the drive shaft and is subjected to cutting force and machine tool operation is solved. Over time, this will cause the tool holder to loosen, which will have an adverse effect on processing efficiency and processing quality.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a CNC cutting tool for preventing tool holder loosening, including a sleeve, and further including: an anti-loosening part disposed inside the sleeve; and a buffer part disposed at the top of the sleeve; wherein, the outer wall of the sleeve is provided with two mounting grooves, and both mounting grooves are adapted to the anti-loosening part.

[0007] Furthermore, the anti-loosening part includes an anti-loosening component, which is installed inside the sleeve. The anti-loosening component includes a cutter slidably connected to the inner wall of the sleeve. A limiting groove is formed on the inner wall of the sleeve. A limiting rail is fixedly connected to the outer wall of the cutter. The limiting rail extends into the limiting groove and is slidably connected to the limiting groove. Two mounting grooves are formed on the outer wall of the sleeve. Clamping rods are hinged to the inner walls of the two mounting grooves. The bottom ends of the two clamping rods extend into the cutter and are slidably connected to the cutter. A fixing member is provided on the sleeve. The outer wall of the cutter has a clamping groove. The bottom ends of the two clamping rods extend into the clamping groove and are slidably connected to the clamping groove. The fixing member includes a threaded opening on the outer wall of the sleeve. A nut is threadedly connected to the threaded opening. The nut abuts against the two clamping rods.

[0008] Furthermore, a reset assembly is installed on the anti-loosening assembly; wherein the reset assembly is installed inside the sleeve, and the reset assembly includes a rotating block rotatably connected to one side of the two clamping rods that are close to each other, and a telescopic rod is fixedly connected to the one side of the two rotating blocks that are close to each other, and a spring is wound around the outer wall of the telescopic rod; wherein the ends of the springs that are far apart from each other are fixedly connected to the two rotating blocks.

[0009] Furthermore, the buffer section includes a buffer assembly, which is installed on the top of the sleeve. The buffer assembly includes a top plate fixedly connected to the top of the sleeve, a damper fixedly connected to the top of the top plate, a fixing plate fixedly connected to the top of the damper, and a plurality of fixing holes opened on the top of the fixing plate. A second spring is wound around the outer wall of the damper; wherein, one end of the second spring is fixedly connected to the top plate, and the other end of the second spring is fixedly connected to the fixing plate.

[0010] Furthermore, a balancing assembly is mounted on a buffer assembly. The balancing assembly includes several balancing rods fixedly connected to the bottom of a fixed plate. Each of the balancing rods penetrates the top plate and is slidably connected to it. Each of the balancing rods has an upper stop block fitted on its outer wall and a lower stop block fixedly connected to its bottom end. A total of six balancing rods are arranged in a circular array.

[0011] This utility model has the following beneficial effects:

[0012] 1. By setting an anti-loosening part, when in use, first insert the tool into the sleeve. During the insertion process, the limiting slide rail on the tool and the limiting slide groove on the inner wall of the sleeve are matched to each other, effectively restricting the tool from rotating. Then, turn the nut on the threaded end downward. The nut applies pressure to the top of the clamping rod hinged in the two mounting slots, causing the two clamping rods to retract into the mounting slots. At the same time, their other ends are inserted into the tool to achieve limiting and fixing. During the process of the nut squeezing the clamping rod, the rotating block on the clamping rod will drive the telescopic rod to compress the spring. This compression action has a dual function: first, it stores elastic potential energy to provide power for the subsequent unfolding of the clamping rod; second, when the tool vibrates during operation, the vibration is transmitted to the telescopic rod and the spring through the clamping rod. The two effectively absorb and buffer the vibration, preventing the nut from loosening due to vibration, which would cause the tool holder to shift and affect the processing efficiency and quality.

[0013] 2. By setting up a buffer section, during the tool machining process, the vibration will also be transmitted to the damper and spring two through the sleeve. At this time, the damper and spring two will work together with multiple balance bars to effectively release the vibration and ensure the stability of the tool holder connection. In addition, when the tool rotates, the balance bar between the top plate and the fixed plate can provide stable support and avoid the rotational force from acting directly on the damper and spring two. At the same time, the upper and lower stops on the balance bar can limit the range of movement of the balance bar to prevent its excessive displacement from interfering with the normal operation of the tool.

[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a partial cross-sectional view of the anti-loosening part of this utility model;

[0018] Figure 3 This is a partial cross-sectional view of the buffer section of this utility model;

[0019] Figure 4 This utility model Figure 2 A magnified structural diagram of A in the middle;

[0020] Figure 5 This utility model Figure 3A magnified structural diagram of B in the diagram.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Sleeve; 2. Anti-loosening part; 21. Anti-loosening component; 211. Cutting tool; 212. Limiting slide groove; 213. Limiting slide rail; 214. Mounting groove; 215. Clamping rod; 216. Threaded opening; 217. Nut; 22. Reset component; 221. Rotating block; 222. Telescopic rod; 223. Spring one; 3. Buffer part; 31. Buffer component; 311. Top plate; 312. Damper; 313. Fixing plate; 314. Fixing hole; 315. Spring two; 32. Balancing component; 321. Balancing rod; 322. Upper stop block; 323. Lower stop block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 As shown, this utility model is a CNC cutting tool for preventing tool holder loosening, including a sleeve 1, and further including: an anti-loosening part 2, which is disposed inside the sleeve 1; and a buffer part 3, which is disposed on the top of the sleeve 1; wherein, the outer wall of the sleeve 1 is provided with two mounting grooves, and both mounting grooves are adapted to the anti-loosening part 2.

[0025] The anti-loosening part 2 includes an anti-loosening component 21, which is installed inside the sleeve 1; and a reset component 22, which is installed on the anti-loosening component 21. The reset component 22 is installed inside the sleeve 1. The anti-loosening component 21 includes a cutter 211 slidably connected to the inner wall of the sleeve 1. A limiting groove 212 is formed on the inner wall of the sleeve 1. A limiting rail 213 is fixedly connected to the outer wall of the cutter 211. The limiting rail 213 extends into the limiting groove 212 and is slidably connected to the limiting groove 212. Two mounting grooves 214 are formed on the outer wall of the sleeve 1. Clamping rods 215 are hinged to the inner walls of both mounting grooves 214. The bottom ends of both clamping rods 215 extend into the cutter 211 and are slidably connected to the cutter 211. A fixing element is provided on the sleeve 1. The outer wall of the cutter 211 has a clamping groove, and the bottom ends of both clamping rods 215 extend into the clamping groove and are slidably connected to it. The reset assembly 22 includes a rotating block 221 rotatably connected to one side of the two clamping rods 215 that are close to each other. A telescopic rod 222 is fixedly connected to one side of the two rotating blocks 221 that are close to each other. A spring 223 is wound around the outer wall of the telescopic rod 222. The ends of the spring 223 that are far apart from each other are fixedly connected to the two rotating blocks 221. The fastener includes a threaded opening 216 on the outer wall of the sleeve 1, with a nut 217 threaded onto the threaded opening 216. The nut 217 abuts against two clamping rods 215. An anti-loosening part 2 is provided. In use, the tool 211 is first inserted into the sleeve 1. During insertion, the limiting slide rail 213 on the tool 211 matches the limiting slide groove 212 on the inner wall of the sleeve 1, effectively limiting the rotation of the tool 211. Then, the nut 217 on the threaded opening 216 is rotated downwards. The nut 217 applies pressure to the tops of the clamping rods 215 hinged in the two mounting grooves 214, causing the two clamping rods 215 to... The nut 217 retracts into the mounting slot 214, while its other end is inserted into the tool 211 to achieve a limiting and fixed position. During the process of the nut 217 pressing the clamping rod 215, the rotating block 221 on the clamping rod 215 will drive the telescopic rod 222 to compress the spring 223. This compression action has a dual function: first, it stores elastic potential energy to provide power for the subsequent unfolding of the clamping rod 215; second, when the tool 211 vibrates during operation, the vibration is transmitted through the clamping rod 215 to the telescopic rod 222 and the spring 223, which effectively absorb and buffer the vibration, preventing the nut 217 from loosening due to vibration, which would cause the tool holder to shift and affect processing efficiency and quality.

[0026] The buffer section 3 includes a buffer assembly 31, which is installed on the top of the sleeve 1; and a balancing assembly 32, which is installed on the buffer assembly 31. The buffer assembly 31 includes a top plate 311 fixedly connected to the top of the sleeve 1, a damper 312 fixedly connected to the top of the top plate 311, a fixing plate 313 fixedly connected to the top of the damper 312, and a plurality of fixing holes 314 opened on the top of the fixing plate 313. A second spring 315 is wound around the outer wall of the damper 312. One end of the second spring 315 is fixedly connected to the top plate 311, and the other end of the second spring 315 is fixedly connected to the fixing plate 313. The balancing assembly 32 includes a plurality of balance rods 321 fixedly connected to the bottom of the fixing plate 313. The plurality of balance rods 321 all penetrate the top plate 311 and are slidably connected to the top plate 311. The outer walls of the plurality of balance rods 321 are all An upper stop block 322 is provided, and a lower stop block 323 is fixedly connected to the bottom end of several balance bars 321. There are six balance bars 321 in total, arranged in a circumferential array. By setting a buffer part 3, during the machining process of the tool 211, the vibration will also be transmitted to the damper 312 and the second spring 315 through the sleeve 1. At this time, the damper 312 and the second spring 315 will work together with the multiple balance bars 321 to effectively release the vibration and ensure the stability of the tool holder connection. In addition, when the tool 211 rotates, the balance bars 321 between the top plate 311 and the fixed plate 313 can provide stable support and prevent the rotational force from acting directly on the damper 312 and the second spring 315. At the same time, the upper stop block 322 and the lower stop block 323 on the balance bar 321 can limit the movement range of the balance bar 321 to prevent its excessive displacement from interfering with the normal operation of the tool 211.

[0027] A specific application of this embodiment is as follows: In use, the tool 211 is first inserted into the sleeve 1. During insertion, the limiting slide rail 213 on the tool 211 matches the limiting slide groove 212 on the inner wall of the sleeve 1, effectively limiting the rotation of the tool 211. Subsequently, the nut 217 on the threaded opening 216 is rotated downwards. The nut 217 applies pressure to the top of the clamping rod 215 hinged in the two mounting slots 214, causing the two clamping rods 215 to retract into the mounting slots 214. Simultaneously, their other ends are inserted into the tool 211, achieving limiting and fixing. During the process of the nut 217 pressing the clamping rod 215, the rotating block 221 on the clamping rod 215 will drive the telescopic rod 222 to compress the spring 223. This compression action has a dual function: firstly, it stores elastic potential energy to provide power for the subsequent unfolding of the clamping rod 215; secondly, when the tool 211 works, it generates vibration... During operation, vibration is transmitted through the clamping rod 215 to the telescopic rod 222 and spring 223, which effectively absorb and buffer the vibration, preventing the nut 217 from loosening due to vibration and causing the tool holder to shift, thus affecting processing efficiency and quality. During the machining process of the tool 211, vibration is also transmitted through the sleeve 1 to the damper 312 and spring 315. At this time, the damper 312 and spring 315 will work together with multiple balance bars 321 to effectively release the vibration and ensure the stability of the tool holder connection. In addition, when the tool 211 rotates, the balance bar 321 between the top plate 311 and the fixed plate 313 can provide stable support, preventing the rotational force from acting directly on the damper 312 and spring 315. At the same time, the upper stop block 322 and the lower stop block 323 on the balance bar 321 can limit the movement range of the balance bar 321 to prevent its excessive displacement from interfering with the normal operation of the tool 211.

Claims

1. A CNC cutting tool for preventing tool holder loosening, comprising a sleeve (1), characterized in that, Also includes: Anti-loosening part (2), the anti-loosening part (2) is provided inside the sleeve (1); as well as A buffer section (3) is provided at the top of the sleeve (1); The outer wall of the sleeve (1) is provided with two mounting grooves, and both mounting grooves are adapted to the anti-loosening part (2).

2. A CNC cutting tool for preventing tool holder loosening according to claim 1, characterized in that, The anti-loosening part (2) includes an anti-loosening component (21), which is installed inside the sleeve (1); and A reset assembly (22) is mounted on an anti-loosening assembly (21); The reset component (22) is installed inside the sleeve (1).

3. A CNC cutting tool for preventing tool holder loosening according to claim 2, characterized in that, The buffer section (3) includes a buffer assembly (31) mounted on top of the sleeve (1); and A balancing component (32) is mounted on a buffer component (31).

4. A CNC cutting tool for preventing tool holder loosening according to claim 3, characterized in that, The anti-loosening component (21) includes a cutter (211) slidably connected to the inner wall of the sleeve (1). The inner wall of the sleeve (1) is provided with a limiting groove (212). The outer wall of the cutter (211) is fixedly connected with a limiting rail (213). The limiting rail (213) extends into the limiting groove (212) and is slidably connected to the limiting groove (212). The outer wall of the sleeve (1) is provided with two mounting grooves (214). The inner walls of the two mounting grooves (214) are hinged with clamping rods (215). The bottom ends of the two clamping rods (215) extend into the cutter (211) and are slidably connected to the cutter (211). The sleeve (1) is provided with a fixing member. The outer wall of the cutting tool (211) is provided with a clamping groove, and the bottom ends of the two clamping rods (215) extend into the clamping groove and are slidably connected to the clamping groove.

5. A CNC cutting tool for preventing tool holder loosening according to claim 4, characterized in that, The reset assembly (22) includes a rotating block (221) rotatably connected to one side of the two clamping rods (215) that are close to each other. A telescopic rod (222) is fixedly connected to one side of the two rotating blocks (221) that are close to each other. A spring (223) is wound around the outer wall of the telescopic rod (222). Among them, the ends of spring 1 (223) that are far apart from each other are fixedly connected to the two rotating blocks (221).

6. A CNC cutting tool for preventing tool holder loosening according to claim 5, characterized in that, The buffer assembly (31) includes a top plate (311) fixedly connected to the top of the sleeve (1), a damper (312) fixedly connected to the top of the top plate (311), a fixing plate (313) fixedly connected to the top of the damper (312), a plurality of fixing holes (314) are provided on the top of the fixing plate (313), and a spring (315) is wound around the outer wall of the damper (312). One end of spring 2 (315) is fixedly connected to the top plate (311), and the other end of spring 2 (315) is fixedly connected to the fixing plate (313).

7. A CNC cutting tool for preventing tool holder loosening according to claim 6, characterized in that, The balancing assembly (32) includes a plurality of balancing rods (321) fixedly connected to the bottom of the fixed plate (313). The plurality of balancing rods (321) all penetrate the top plate (311) and are slidably connected to the top plate (311). The outer walls of the plurality of balancing rods (321) are fitted with upper stops (322), and the bottom ends of the plurality of balancing rods (321) are fixedly connected with lower stops (323). Among them, there are six balance bars (321) arranged in a circular array.

8. A CNC cutting tool for preventing tool holder loosening according to claim 7, characterized in that, The fastener includes a threaded opening (216) on the outer wall of the sleeve (1), and a nut (217) is threaded onto the threaded opening (216). The nut (217) abuts against the two clamping rods (215).

Images