Quick-release milling cutter of numerical control machine tool

Abstract

The invention relates to the technical field of quick-release milling cutters, and discloses a numerical control machine tool quick-release milling cutter, which comprises a chuck, the bottom of the chuck is rotatably connected with a rotating wheel, and the inner wall of the top of the chuck is annularly provided with a clamping seat part in sliding sleeve connection with the inner wall of the chuck. Any group of shifting plates are shifted to drive the clamping plate to rotate by taking the rotating seat as an axis, so that the limiting relationship between the clamping plate and the clamping groove is canceled, the sliding seat can move on the inner wall of the sliding groove III, and the sliding seat is glidingly sleeved on the inner wall of the sliding groove III, so that the abutting force of the sliding seat to the milling cutter through the eccentric abutting wheel is canceled; the problem that in traditional equipment, when a worker needs to take down the milling cutter from a three-jaw chuck, the worker needs to apply large force to a bevel pinion to drive a bevel gear wheel, and then the milling cutter can be taken down is solved.

Description

Technical Field

[0001] The invention relates to the technical field of quick-release milling cutters, in particular to a quick-release milling cutter for a numerically controlled machine tool. Background Art

[0002] Milling is a high-precision machining method that uses a rotating multi-edged tool to cut a workpiece. During operation, the tool rotates (main motion) and the workpiece moves. The workpiece can also be fixed, but the rotating tool must also move (to complete the main motion and feed motion at the same time). The machine tools used for milling include horizontal milling machines or vertical milling machines, as well as large gantry milling machines.

[0003] These machine tools can be conventional machine tools or CNC machine tools.

[0004] The milling cutter is generally fixed with a three-jaw chuck. The three-jaw chuck drives the large bevel gear with a small bevel gear. There is an Archimedean spiral groove on the back of the large bevel gear, which meshes with the three jaws. Therefore, by turning the small bevel gear with a wrench, the three jaws can move radially at the same time, achieving automatic centering and clamping.

[0005] However, after the above-mentioned equipment clamps the milling cutter, the thrust exerted by the Archimedean spiral groove on the back of the large bevel gear on the three claws increases the friction between the Archimedean spiral groove and the claws, so that when the personnel need to remove the milling cutter from the three-jaw chuck, they need to exert a large force on the small bevel gear to drive the large bevel gear to remove the milling cutter; On the other hand, when the design direction of the Archimedean spiral groove is consistent with the rotation direction of the three-jaw chuck driven by the lathe, the large bevel gear will further realize relative rotation with the three-jaw chuck body due to inertia, thereby increasing the thrust exerted by the Archimedean spiral groove on the three jaws, thereby increasing the difficulty of removing the milling cutter; On the other hand, when the small bevel gear rotates to drive the large bevel gear, there is an Archimedes spiral groove on the back of the large bevel gear, which meshes with three claws so that the claws abut and fix the milling cutter. When the claws initially fix the milling cutter, in order to completely fix the milling cutter, it is necessary to further rotate the small bevel gear so that the Archimedes spiral groove further pushes the claws to move. In this process, the friction between the Archimedes spiral groove and the claws increases, and the relative movement of the Archimedes spiral groove and the claws results in a reduction in the service life of the contact part between the Archimedes spiral groove and the claws. Summary of the invention

[0006] The present invention provides a quick-release milling cutter for a numerically controlled machine tool, which solves the problems raised by the above-mentioned background technology.

[0007] The present invention provides the following technical solution: a quick-release milling cutter for a CNC machine tool, comprising a chuck, the bottom of the chuck being rotatably connected to a rotating wheel, and the top inner wall of the chuck being annularly provided with a clamping seat component which is slidably sleeved with the inner wall of the chuck.

[0008] As a preferred technical solution of the present invention: the chuck includes a shaft body, a fixing groove is provided at the bottom of the shaft body, a clamping ring is clamped on the outer wall of the shaft body, a triangular seat is annularly arranged on the top of the shaft body and fixedly assembled with the shaft body, and a sliding groove is provided on the inner wall between the two groups of triangular seats.

[0009] As a preferred technical solution of the present invention: the rotating wheel comprises a wheel body, a circular groove is formed on the top of the wheel body, and an Archimedean spiral groove is formed on the top of the circular groove; The rotating wheel is rotatably connected with the outer wall of the shaft body through the circular groove, the top of the wheel body abuts against the bottom outer edge of the triangular seat, and the bottom of the wheel body abuts against the clamping ring.

[0010] As a preferred technical solution of the present invention: the clamping seat component includes a clamping seat body, the bottom outer wall of the clamping seat body is provided with an engaging groove, the outer walls on both sides of the clamping seat body are provided with a sliding groove 2, the clamping seat body is provided with two groups of sliding grooves 3 along the length direction, and the inner wall of the sliding groove 3 close to the axis of the chuck is provided with a accommodating groove.

[0011] As a preferred technical solution of the present invention: the inner walls of the two groups of the sliding grooves three are slidably sleeved with sliding seats, the two groups of the sliding seats are fixedly equipped with fixed seats on the side away from the chuck axis, and the top of the end of the sliding seat of the bottom group away from the chuck axis is provided with a clamping groove, the outer wall of the clamping seat body away from the chuck axis is fixedly equipped with a rotating seat, the inner wall of the rotating seat is rotatably connected with a clamping plate, and the clamping plate is fixedly equipped with a shifting plate on the side away from the chuck axis.

[0012] As a preferred technical solution of the present invention: the clamp seat body is engaged with the engagement groove and the Archimedean spiral groove, the clamp seat body is slidably sleeved on the inner wall of the slide groove, the bottom of the clamping plate close to the side of the shifting plate is clamped with the inner wall of the clamping groove, and the shifting plate is sleeved on the outer wall of the fixed seat.

[0013] As a preferred technical solution of the present invention: the slide seat includes an abutment seat, a mounting groove is provided on one side of the abutment seat close to the axis of the chuck, a rotation groove is provided on the inner wall of one side of the mounting groove, a torsion spring is provided on the inner wall of the rotation groove, and an eccentric abutment wheel is rotatably connected to the inner wall of the mounting groove; One end of the torsion spring is clamped with the inner wall of the rotating groove, and the other end of the torsion spring is clamped with the inner wall of the eccentric abutment wheel. The outer wall of the eccentric abutment wheel is inlaid with frosted patterns.

[0014] The present invention has the following beneficial effects: 1. The CNC machine tool quick-disassembly milling cutter can be realized by toggling any group of paddles, so that the paddles drive the clamping plate to rotate with the swivel seat as the axis, thereby canceling the limit relationship between the clamping plate and the clamping slot, so that the slide seat can be located on the inner wall of the slide slot three to realize movement, and the slide seat is located on the inner wall of the slide slot three to slide and sleeve, so that the abutment force of the slide seat on the milling cutter through the eccentric abutment wheel is canceled, thereby disengaging the milling cutter and several groups of clamp seat components, thereby solving the problem that when personnel need to remove the milling cutter from the three-jaw chuck in traditional equipment, they need to apply a large force to the small bevel gear to drive the large bevel gear to realize the removal of the milling cutter.

[0015] 2. The CNC machine tool quick-release milling cutter places the end portion of the milling cutter in the opposite end space of several groups of clamping seat components, and by rotating the relatively rotating chuck and the rotating wheel again, the end portion of the clamping seat component initially squeezes the milling cutter, and then by pushing the milling cutter to one side of the chuck, the frosted pattern inlaid on the outer wall of the eccentric abutment wheel is used, and the friction between the milling cutter and the outer wall of the eccentric abutment wheel is used to make the milling cutter drive the eccentric abutment wheel to rotate while moving toward the chuck, and the eccentric abutment wheel is set, so that the eccentrically rotating eccentric abutment wheel squeezes the milling cutter, so that the milling cutter is clamped and fixed by several groups of eccentric abutment wheels, which solves the problem that in traditional equipment, in order to completely fix the milling cutter, the small bevel gear needs to be further rotated so that the Archimedes spiral groove further pushes the claw to move, and in this process, the friction between the Archimedes spiral groove and the claw increases, and the relative movement of the Archimedes spiral groove and the claw leads to a reduced service life of the contact part between the Archimedes spiral groove and the claw. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a structural schematic diagram of another viewing angle of the present invention; Figure 3 This is a schematic diagram of the chuck structure of the present invention; Figure 4 It is a schematic diagram of the installation of the clamping seat component and the milling cutter of the present invention; Figure 5 This is a schematic diagram of the structure of the second chute of the present invention; Figure 6 This is a schematic diagram of the card slot structure of the present invention; Figure 7 Schematic diagram of the transposition structure of the present invention; Figure 8 This is a schematic diagram of the structure of the card board of the present invention; Fig. 9 It is a schematic diagram of the slide structure of the present invention; Fig.10 It is a schematic diagram of the structure of the eccentric abutment wheel of the present invention.

[0017] In the figure: 1. chuck; 2. rotating wheel; 3. clamping seat component; 4. milling cutter; 101, shaft body; 102, fixing groove; 103, snap ring; 104, triangular seat; 105, slide groove 1; 201, wheel body; 202, circular groove; 203, Archimedean spiral groove; 301, clamping seat body; 302, meshing groove; 303, slide groove 2; 304, slide groove 3; 305, receiving groove; 306, fixed seat; 307, slide seat; 308, clamping groove; 309, rotating seat; 310, clamping plate; 311, dial plate; 3071. abutment seat; 3072. mounting groove; 3073. rotation groove; 3074. torsion spring; 3075. eccentric abutment wheel. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1 - Fig.10 A quick-release milling cutter for a CNC machine tool comprises a chuck 1, a rotating wheel 2 is rotatably connected to the bottom of the chuck 1, and a clamping seat component 3 which is slidably sleeved with the inner wall of the chuck 1 is annularly arranged on the top inner wall of the chuck 1.

[0020] In a preferred embodiment: the chuck 1 includes a shaft body 101, a fixing groove 102 is provided at the bottom of the shaft body 101, a clamping ring 103 is clamped on the outer wall of the shaft body 101, a triangular seat 104 is annularly arranged on the top of the shaft body 101 and fixedly assembled with the shaft body 101, and a sliding groove 105 is provided on the inner wall between the two sets of triangular seats 104.

[0021] In a preferred embodiment, the rotating wheel 2 includes a wheel body 201, a circular groove 202 is formed on the top of the wheel body 201, and an Archimedean spiral groove 203 is formed on the top of the circular groove 202; The rotating wheel 2 is rotatably connected to the outer wall of the shaft body 101 through the circular groove 202 , the top of the wheel body 201 abuts against the bottom outer edge of the triangular seat 104 , and the bottom of the wheel body 201 abuts against the clamping ring 103 .

[0022] In the above structure, the circular groove 202 and the outer wall of the shaft body 101 are rotatably connected to realize rotation between the rotating wheel 2 and the chuck 1, and the top of the wheel body 201 abuts against the bottom outer edge of the triangular seat 104, and the bottom of the wheel body 201 abuts against the retaining ring 103, so that upper and lower limit positions are achieved between the rotating wheel 2 and the chuck 1.

[0023] In a preferred embodiment: the clamping seat component 3 includes a clamping seat body 301, the bottom outer wall of the clamping seat body 301 is provided with an engaging groove 302, the outer walls on both sides of the clamping seat body 301 are provided with a second slide groove 303, the clamping seat body 301 is provided with two groups of third slide grooves 304 along the length direction, and the inner wall of the third slide groove 304 close to the axis of the chuck 1 is provided with a receiving groove 305.

[0024] In a preferred embodiment: the inner walls of the two groups of slide grooves 304 are both slidably sleeved with slide seats 307, the two groups of slide seats 307 are fixedly equipped with fixed seats 306 on the side away from the axis of the chuck 1, and a slot 308 is provided on the top of the end of the bottom group of slide seats 307 away from the axis of the chuck 1, and a rotating seat 309 is fixedly equipped on the outer wall of the clamping seat body 301 away from the axis of the chuck 1, and the inner wall of the rotating seat 309 is rotatably connected with a clamping plate 310, and a shifting plate 311 is fixedly equipped on the side of the clamping plate 310 away from the axis of the chuck 1.

[0025] In a preferred embodiment: the clamp seat body 301 is engaged with the Archimedean screw groove 203 through the engagement groove 302, the clamp seat body 301 is slidably sleeved on the inner wall of the slide groove 105, the bottom of the clamping plate 310 close to the side of the shifting plate 311 is clamped with the inner wall of the clamping groove 308, and the shifting plate 311 is sleeved on the outer wall of the fixed seat 306.

[0026] In the above structure, the clamping seat body 301 is engaged with the Archimedean spiral groove 203 through the engagement groove 302, so that when the chuck 1 and the rotating wheel 2 rotate relative to each other, the clamping seat body 301 is limited by the slide groove 105, so that the plurality of clamping seat parts 3 move relative to or oppositely, thereby adjusting the relative end space size of the three groups of clamping seat parts 3, thereby clamping the milling cutters 4 of different diameters; The bottom of the clamping plate 310 close to the dial plate 311 is clamped with the inner wall of the slot 308, so that the clamping plate 310 and the slot 308 are limited, and then the clamping seat body 301 is limited by the clamping plate 310, so that the slide seat 307 is fixed on the inner wall of the slide slot three 304, and the dial plate 311 is sleeved on the outer wall of the fixed seat 306, and the dial plate 311 and the clamping plate 310 are fixedly assembled, so that a person can dial the dial plate 311 to make the dial plate 311 drive the clamping plate 310 to rotate around the rotating seat 309 as the axis, thereby canceling the limiting relationship between the clamping plate 310 and the slot 308, so that the slide seat 307 can be located on the inner wall of the slide slot three 304 to move.

[0027] In a preferred embodiment, the slide 307 includes an abutment seat 3071, a mounting groove 3072 is provided on one side of the abutment seat 3071 close to the axis of the chuck 1, a rotation groove 3073 is provided on one inner wall of the mounting groove 3072, a torsion spring 3074 is provided on the inner wall of the rotation groove 3073, and an eccentric abutment wheel 3075 is rotatably connected to the inner wall of the mounting groove 3072; One end of the torsion spring 3074 is clamped with the inner wall of the rotating groove 3073, and the other end of the torsion spring 3074 is clamped with the inner wall of the eccentric abutting wheel 3075, and the outer wall of the eccentric abutting wheel 3075 is inlaid with frosted patterns.

[0028] In the above structure, by relatively rotating the chuck 1 and the rotating wheel 2, the slide groove 105 limits the clamping seat body 301, and the meshing groove 302 and the Archimedean spiral groove 203 are meshed, so that the several groups of clamping seat parts 3 are relatively moved, and the end part of the milling cutter 4 is placed in the opposite end space of the several groups of clamping seat parts 3, and by relatively rotating the chuck 1 and the rotating wheel 2 again, the end of the clamping seat part 3 squeezes the milling cutter 4, and then by pushing the milling cutter 4 to one side of the chuck 1, through the frosted pattern inlaid on the outer wall of the eccentric abutment wheel 3075, and utilizing the friction force between the milling cutter 4 and the outer wall of the eccentric abutment wheel 3075, the milling cutter 4 drives the eccentric abutment wheel 3075 to rotate while moving toward the chuck 1, and through the setting of the eccentric abutment wheel 3075, the eccentrically rotating eccentric abutment wheel 3075 squeezes the milling cutter 4, so that the milling cutter 4 is clamped and fixed by the several groups of eccentric abutment wheels 3075.

[0029] Working principle: when the milling cutter 4 is installed, the bottom of the clamping plate 310 close to the dial plate 311 is clamped with the inner wall of the clamping groove 308, so that the clamping plate 310 and the clamping groove 308 are limited, and then the clamping seat body 301 is limited by the clamping plate 310, and the positions of the plurality of slide seats 307 in the slide groove 304 are adjusted to be consistent; The clamping seat body 301 is meshed with the Archimedean spiral groove 203 through the meshing groove 302, so that when the chuck 1 and the rotating wheel 2 rotate relatively, the clamping seat body 301 is limited by the sliding groove 105, so that the plurality of clamping seat components 3 move relatively. The end portion of the milling cutter 4 is placed in the space at the opposite ends of the plurality of groups of clamping seat components 3, and the end portion of the clamping seat component 3 is initially squeezed on the milling cutter 4 by rotating the relatively rotating chuck 1 and the rotating wheel 2 again, and then the milling cutter 4 is pushed toward one side of the chuck 1, and the frosted pattern inlaid on the outer wall of the eccentric abutment wheel 3075 is utilized, and the friction between the milling cutter 4 and the outer wall of the eccentric abutment wheel 3075 is utilized, so that the milling cutter 4 drives the eccentric abutment wheel 3075 to rotate while moving toward the chuck 1, and the eccentric abutment wheel 3075 is arranged so that the eccentrically rotating eccentric abutment wheel 3075 squeezes the milling cutter 4, so that the milling cutter 4 is clamped and fixed by the plurality of groups of eccentric abutment wheels 3075; When the milling cutter 4 is disassembled, by shifting any set of the shifting plates 311, the shifting plates 311 drive the clamping plate 310 to rotate around the swivel seat 309, thereby canceling the limiting relationship between the clamping plate 310 and the clamping slot 308, so that the slide 307 can be located on the inner wall of the slide slot three 304 to move, and the slide 307 is slidably connected to the inner wall of the slide slot three 304, so that the abutment force of the slide 307 on the milling cutter 4 is canceled through the eccentric abutment wheel 3075, thereby enabling the milling cutter 4 and several sets of clamping seat components 3 to be separated.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-release milling cutter for a CNC machine tool, comprising a chuck (1), characterized in that: The bottom of the chuck (1) is rotatably connected to a rotating wheel (2), and the top inner wall of the chuck (1) is provided with a clamping seat component (3) in an annular shape and slidably sleeved with the inner wall of the chuck (1).

2. The quick-release milling cutter for CNC machine tools according to claim 1, characterized in that: The chuck (1) comprises a shaft body (101), a fixing groove (102) is provided at the bottom of the shaft body (101), a clamping ring (103) is clamped on the outer wall of the shaft body (101), a triangular seat (104) is provided in an annular shape on the top of the shaft body (101) and is fixedly assembled with the shaft body (101), and a sliding groove (105) is provided on the inner wall between two groups of the triangular seats (104).

3. The quick-release milling cutter for CNC machine tools according to claim 1, characterized in that: The rotating wheel (2) comprises a wheel body (201), a circular groove (202) is provided on the top of the wheel body (201), and an Archimedean spiral groove (203) is provided on the top of the circular groove (202); The rotating wheel (2) is rotatably connected to the outer wall of the shaft body (101) via the circular groove (202); the top of the wheel body (201) abuts against the outer edge of the bottom of the triangular seat (104); and the bottom of the wheel body (201) abuts against the clamping ring (103).

4. The quick-release milling cutter for CNC machine tools according to claim 1, characterized in that: The clamp seat component (3) comprises a clamp seat body (301), the bottom outer wall of the clamp seat body (301) is provided with an engagement groove (302), the outer walls on both sides of the clamp seat body (301) are provided with a second slide groove (303), the clamp seat body (301) is provided with two groups of third slide grooves (304) along the length direction, and the inner wall of the third slide groove (304) close to the axis of the chuck (1) is provided with a receiving groove (305).

5. The quick-release milling cutter for CNC machine tools according to claim 4, characterized in that: The inner walls of the two groups of the slide grooves (304) are both slidably sleeved with a slide seat (307), and the two groups of the slide seats (307) are fixedly equipped with a fixed seat (306) on the side away from the axis of the chuck (1). The top of the end of the slide seat (307) located at the bottom group away from the axis of the chuck (1) is provided with a slot (308), and the outer wall of the clamping seat body (301) away from the axis of the chuck (1) is fixedly equipped with a rotating seat (309), and the inner wall of the rotating seat (309) is rotatably connected with a clamping plate (310), and the clamping plate (310) is fixedly equipped with a shifting plate (311) on the side away from the axis of the chuck (1).

6. The quick-release milling cutter for CNC machine tools according to claim 5, characterized in that: The clamp seat body (301) is meshed with the Archimedean spiral groove (203) through the meshing groove (302), the clamp seat body (301) is slidably sleeved on the inner wall of the slide groove (105), the bottom of the clamping plate (310) close to the side of the shifting plate (311) is clamped with the inner wall of the clamping groove (308), and the shifting plate (311) is sleeved on the outer wall of the fixed seat (306).

7. The quick-release milling cutter for CNC machine tools according to claim 6, characterized in that: The slide seat (307) comprises an abutment seat (3071), a mounting groove (3072) is provided on one side of the abutment seat (3071) close to the axis of the chuck (1), a rotation groove (3073) is provided on the inner wall of one side of the mounting groove (3072), a torsion spring (3074) is provided on the inner wall of the rotation groove (3073), and an eccentric abutment wheel (3075) is rotatably connected to the inner wall of the mounting groove (3072); One end of the torsion spring (3074) is clamped with the inner wall of the rotating groove (3073), and the other end of the torsion spring (3074) is clamped with the inner wall of the eccentric abutment wheel (3075), and the outer wall of the eccentric abutment wheel (3075) is inlaid with frosted patterns.

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