Stably-clamping clamp for end mill

Abstract

The utility model discloses a clamp for a stable clamping end mill, which belongs to the technical field of clamps for end mills and comprises a cutter clamp shell, a threaded connection end is arranged at the bottom of the cutter clamp shell, an inner clamp is arranged at the bottom of the threaded connection end, and a quick replacement component and an auxiliary cleaning component are respectively arranged in the inner clamp. According to the milling cutter clamp, a worker manually operates the outer clamp to move towards the direction of the threaded connection end, the threaded connection end, the cutter clamp shell and the inner clamp are fixed through the outer clamp, and at the moment, the outer clamp drives the rolling wheel, the guide rod and the clamping block to move towards the direction of the milling cutter through the conical barrel; the milling cutter fixing device is simple in structure and convenient to use, a milling cutter is rapidly clamped and fixed through the clamping block, the connecting position of the cutter fixing channel and the milling cutter is sealed through the clamping block and the elastic piece, external impurities and dust are prevented from entering the milling cutter fixing device in the subsequent use process of a product, and therefore the protection effect of the product in the use process is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of end mill clamps, and particularly relates to a stable end mill clamp. BACKGROUND

[0002] An end mill refers to a tool head and a tool handle composed of an outer peripheral edge formed on an outer peripheral portion and a bottom edge formed on a front end. The end mill is mainly used for machining a plane, a step, a groove, a formed surface and cutting off a workpiece on a milling machine, and is used for machining a plane on a horizontal milling machine.

[0003] For example, a clamp for a cubic boron nitride internally-cooled thread milling cutter in Chinese patent document (CN207824058U) includes a clamp body, a screw rod, a bolt, a hydraulic oil tank, an oil pipe, a first piston, a second piston, a third piston, an oil cavity, a protective layer, a damping spring, a sliding rail, a limiting block and a clamping sleeve. The clamp is composed of the clamp body, the protective layer and the screw rod, and a screw rod is arranged at the top center of the clamp body. The tail end of the screw rod at the top end of the clamp for the cubic boron nitride internally-cooled thread milling cutter is rotated to move the bolt downward to push the piston. The clamping sleeve clamps the milling cutter under the action of the hydraulic oil. When the milling cutter works, the pressure causes the milling cutter to slide upward. The milling cutter can push the hydraulic oil in the oil tank to increase the pressure of the clamping sleeve to clamp the milling cutter, thereby improving the stability of the milling cutter in work. However, during use, external impurities and moisture may be transported to the bottom of the clamping sleeve through the tool fixing channel, which affects the service life of the milling cutter and the clamping sleeve for a long time. Therefore, improvement is needed. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at solving the problem that in the prior art, external impurities and moisture may be transported to the bottom of the clamping sleeve through the tool fixing channel during use, which affects the service life of the milling cutter and the clamping sleeve for a long time, and proposes a stable end mill clamp.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A stable end mill clamp includes a tool clamp shell, a threaded connection end is arranged at the bottom of the tool clamp shell, an inner clamp is arranged at the bottom of the threaded connection end, a quick replacement assembly and an auxiliary cleaning assembly are arranged in the inner clamp,

[0007] The quick replacement assembly includes a second cavity, a plurality of first cavities and a plurality of installation cavities arranged in the inner clamp, a guide rod is arranged in the second cavity and the first cavity, one end of the guide rod extends into the installation cavity and is fixedly connected with a roller, a conical barrel is arranged on the other side of the roller, and a clamping block is fixedly connected to the end of the guide rod away from the roller.

[0008] As a further description of the above technical solutions:

[0009] The outer periphery of the conical barrel is fixedly connected with the inner wall of the outer clamp, the guide rod is slidingly connected with the inner clamp, a spring is arranged on the outer periphery of the guide rod, the spring is arranged in the first cavity, and one side of the spring is fixedly connected with the inner wall of the inner clamp.

[0010] As a further description of the above technical solutions:

[0011] A cutter fixing channel is arranged at the center of the inner wall of the inner clamp, and a milling cutter is arranged in the cutter fixing channel.

[0012] As a further description of the above technical solutions:

[0013] The cross section of the inner clamp is conical, the outer periphery of the inner clamp is threadedly connected with an outer clamp, the outer clamp is threadedly connected with the outer periphery of the threaded connection end, elastic members are arranged on both sides of the clamping block, and an elastic protective layer is arranged on the inner periphery of the clamping block.

[0014] As a further description of the above technical solutions:

[0015] The first cavity and the mounting cavity are connected through a circular through hole, and the second cavity is connected with the cutter fixing channel.

[0016] As a further description of the above technical solutions:

[0017] The auxiliary cleaning assembly comprises a vertical plate, the vertical plate is slidingly connected in the second cavity, the vertical plate is fixedly connected with the outer periphery of the guide rod, and one side of the vertical plate is fixedly connected with the outer wall of the spring.

[0018] As a further description of the above technical solutions:

[0019] Air bags are arranged on both sides of the spring, one side of each air bag is fixedly connected with one side of the vertical plate and the inner wall of the inner clamp, a one-way air inlet pipe is connected with one side of each air bag, and an air outlet pipe is connected with the other side of each air bag through a pipe joint.

[0020] As a further description of the above technical solutions:

[0021] The other end of the air outlet pipe is connected with an annular barrel, the annular barrel is fixedly connected in the inner clamp and arranged in the cutter fixing channel, a cleaning block is connected with the top of the annular barrel, an annular cavity is arranged in the cleaning block and connected with the annular barrel, a plurality of one-way air outlets are connected with one side of the annular cavity, and the one-way air outlets are arranged on the inner periphery of the annular barrel.

[0022] As described above, due to the adoption of the above technical solutions, the present application has the following advantages:

[0023] 1、The utility model discloses a quick replacement assembly is set up, and staff manually operates outer clamp and moves to the direction of threaded connection end, and the threaded connection end, cutter clamp shell and inner clamp are fixed through outer clamp, at this moment, outer clamp will drive the roller, guide rod and clamping block to move to the direction of milling cutter through the taper cylinder, makes the clamping block quick clamping and fixing milling cutter, and the connecting position of cutter fixed channel and milling cutter is sealed through clamping block and elastic part, prevents the external impurity and dust from entering its inside in the subsequent use process of product, thereby effectively improve the protection effect of product in the use process, guarantees the clamping and fixing effect of product in the installation process through the thread locking between outer clamp and threaded connection end and inner clamp.

[0024] 2、The utility model discloses an auxiliary cleaning assembly is set up, when milling cutter produces damage and needs to be replaced in long -time use process, staff moves outer clamp to the direction of far away threaded connection end through external tool, at this moment, the force of spring will drive guide rod, roller and clamping block to move to the direction of far away milling cutter, so as to replace milling cutter, at the same time, cleaning block will assist cleaning the bottom of clamping block, and guide rod will drive the vertical board and send the gas in airbag to the bottom of clamping block through annular cylinder, cleaning block, annular cavity and one -way air outlet, and the bottom is dried and cleaned, reduce the friction and abrasion between clamping block and inner clamp in the moving process, prevent the gap between clamping block and inner clamp in long -time use process of inner clamp, further prevent the influence on the subsequent milling cutter clamping stability. DRAWINGS

[0025] Figure 1 It is the whole three -dimensional structure schematic diagram of the utility model,

[0026] Figure 2 It is the whole part three -dimensional structure schematic diagram of the utility model,

[0027] Figure 3 It is the A place local amplification structure schematic diagram in the utility model, Figure 2

[0028] Figure 4 It is the B place local amplification structure schematic diagram in the utility model, Figure 2

[0029] Legend:

[0030] ​​1, tool holder shell; 2, inner clamp; 3, outer clamp; 4, quick replacement assembly; 401, first cavity; 402, second cavity; 403, guide rod; 404, roller; 405, tapered cylinder; 406, clamping block; 407, spring; 5, auxiliary cleaning assembly; 501, vertical plate; 502, air bag; 503, air outlet pipe; 504, annular cylinder; 506, cleaning block; 507, one-way air outlet; 6, milling cutter; 7, threaded connection end. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0032] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a clamping stable end mill clamp, including tool holder shell 1, tool holder shell 1 bottom is provided with threaded connection end 7, threaded connection end 7 bottom is provided with inner clamp 2, inner clamp 2 is respectively provided with quick replacement assembly 4 and auxiliary cleaning assembly 5 in portion.

[0033] Quick replacement assembly 4 includes the second cavity 402 being arranged in the inner clamp 2, a plurality of first cavities 401 and a plurality of installation cavities, the second cavity 402 and the first cavity 401 are all provided with guide rod 403 inside, guide rod 403 one end extends to the inside of installation cavity and is fixedly connected with roller 404, the other side of roller 404 is provided with tapered cylinder 405, guide rod 403 is fixedly connected with clamping block 406 at the end away from roller 404, tapered cylinder 405 outer circumferential side is fixedly connected with the inner wall of outer clamp 3, guide rod 403 is slidingly connected in inner clamp 2, spring 407 is arranged in the first cavity 401, and the spring 407 one side is fixedly connected with the inner wall of inner clamp 2, the inner bottom side center of inner clamp 2 is provided with tool fixing channel, milling cutter 6 is arranged in tool fixing channel, the cross-sectional shape of inner clamp 2 is tapered, and outer clamp 3 is threadedly connected on the outer circumferential side of inner clamp 2, outer clamp 3 is threadedly connected on the outer circumferential side of threaded connection end 7, clamping block 406 both sides are provided with elastic member, and clamping block 406 inner circumferential side is provided with elastic protective layer, the first cavity 401 and installation cavity are communicated by circular through hole, and the second cavity 402 is communicated with tool fixing channel.

[0034] Specifically, first, the milling cutter 6 is installed inside the cutter fixing channel, and the outer clamp 3 is sleeved on the outer peripheral side of the inner clamp 2, then the inner clamp 2 is manually operated to drive the milling cutter 6 into the threaded connection end 7 at the bottom of the cutter clamp shell 1, then the worker manually operates the outer clamp 3 to move it in the direction of the threaded connection end 7, and the threaded connection end 7, the cutter clamp shell 1 and the inner clamp 2 are fixed by the outer clamp 3, at the same time, the outer clamp 3 drives the conical barrel 405 to move upward, and the conical barrel 405 extrudes the roller 404, so that the roller 404 drives the guide rod 403 and the clamping block 406 to move in the direction of the milling cutter 6, so that the clamping block 406 quickly clamps and fixes the milling cutter 6, and the connection position of the cutter fixing channel and the milling cutter 6 is sealed by the clamping block 406 and the elastic member, preventing external impurities and dust from entering the inside during subsequent use, thereby effectively improving the protection effect of the product during use. The threaded locking between the outer clamp 3 and the threaded connection end 7 and the inner clamp 2 ensures the clamping and fixing effect of the product during installation, and then the cutter clamp shell 1 is fixed with the external vertical milling machine spindle to mill the external workpiece.

[0035] The auxiliary cleaning assembly 5 comprises a vertical plate 501 which is slidingly connected inside the second cavity 402 and fixedly connected on the outer peripheral side of the guide rod 403. One side of the vertical plate 501 is fixedly connected with the outer wall of the spring 407. The spring 407 is provided with air bags 502 on both sides, and the air bags 502 are fixedly connected with one side of the vertical plate 501 and the inner wall of the inner clamp 2, respectively. One side of the air bag 502 is communicated with a one-way air inlet pipe, and the other side of the air bag 502 is communicated with an air outlet pipe 503 through a pipe joint. The other end of the air outlet pipe 503 is communicated with an annular cylinder 504 which is fixedly connected inside the inner clamp 2 and arranged inside the cutter fixing channel. The annular cylinder 504 is connected with a cleaning block 506 at the top, and the cleaning block 506 is internally provided with an annular cavity which is communicated with the annular cylinder 504. The annular cavity is communicated with a plurality of one-way air outlets 507 on one side, and the one-way air outlets 507 are arranged on the inner peripheral side of the annular cylinder 504.

[0036] CUTTER CLAMP SHELL 1 is separated from the external vertical milling machine spindle, then the worker moves the outer clamp 3 away from the threaded connection end 7 by external tools, at this time the force of the spring 407 drives the guide rod 403, the roller 404 and the clamping block 406 to move away from the milling cutter 6, thereby releasing the fixation effect on the milling cutter 6, so as to replace the milling cutter 6. At the same time, the cleaning block 506 assists in cleaning the bottom of the clamping block 406, and the guide rod 403 drives the vertical plate 501 to extrude the air bag 502, so that the gas in the air bag 502 is transported to the inside of the annular cylinder 504 through the air outlet pipe 503, and then is transported to the bottom of the clamping block 406 through the annular cavity and the one-way air outlet 507 in the cleaning block 506, so as to dry and clean the bottom, thereby reducing the friction and wear between the clamping block 406 and the inner clamp 2 during movement, preventing the generation of gaps between the clamping block 406 and the inner clamp 2 during long-term use, and preventing the impact on the clamping stability of the subsequent milling cutter 6.

[0037] WORKING PRINCIPLE: In use, first install the milling cutter 6 into the cutter fixing channel, and then set the outer clamp 3 on the outer periphery of the inner clamp 2, and then manually operate the inner clamp 2 to drive the milling cutter 6 into the threaded connection end 7 at the bottom of the cutter clamp shell 1, and then manually operate the outer clamp 3 to move towards the threaded connection end 7, thereby fixing the threaded connection end 7, the cutter clamp shell 1 and the inner clamp 2 by the outer clamp 3, and at the same time, the outer clamp 3 drives the conical cylinder 405 to move upwards, and the conical cylinder 405 extrudes the roller 404, so that the roller 404 drives the guide rod 403 and the clamping block 406 to move towards the milling cutter 6, so that the clamping block 406 quickly clamps and fixes the milling cutter 6, and the connection position between the cutter fixing channel and the milling cutter 6 is sealed by the clamping block 406 and the elastic member, and then the cutter clamp shell 1 is fixed with the external vertical milling machine spindle to mill the external workpiece. When the milling cutter 6 needs to be replaced due to damage during long-term use, first separate the cutter clamp shell 1 from the external vertical milling machine spindle, and then move the outer clamp 3 away from the threaded connection end 7 by external tools, at this time the force of the spring 407 drives the guide rod 403, the roller 404 and the clamping block 406 to move away from the milling cutter 6, thereby releasing the fixation effect on the milling cutter 6, and at the same time, the cleaning block 506 assists in cleaning the bottom of the clamping block 406, and the guide rod 403 drives the vertical plate 501 to extrude the air bag 502, so that the gas in the air bag 502 is transported to the inside of the annular cylinder 504 through the air outlet pipe 503, and then is transported to the bottom of the clamping block 406 through the annular cavity and the one-way air outlet 507 in the cleaning block 506, so as to dry and clean the bottom, thereby reducing the friction and wear between the clamping block 406 and the inner clamp 2 during movement, preventing the generation of gaps between the clamping block 406 and the inner clamp 2 during long-term use, and preventing the impact on the clamping stability of the subsequent milling cutter 6.

[0038] The above merely describes a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any skilled person in the art, according to the technical scheme and the inventive concept of the present application, can make equivalent substitutions or changes within the technical range disclosed by the present application, which should be covered within the scope of protection of the present application.

Claims

1. A clamping-stable jig for an end mill, comprising a tool-jig housing (1), characterized in that: The cutter clamp shell (1) bottom is provided with a threaded connection end (7), the threaded connection end (7) bottom is provided with an inner clamp (2), the inner clamp (2) is provided with a quick replacement assembly (4) and an auxiliary cleaning assembly (5) respectively inside; The quick replacement assembly (4) includes a second cavity (402) arranged inside the inner clamp (2), a plurality of first cavities (401) and a plurality of mounting cavities, the second cavity (402) and the first cavity (401) are provided with a guide rod (403) inside, one end of the guide rod (403) extends into the mounting cavity and is fixedly connected with a roller (404), the other side of the roller (404) is provided with a tapered barrel (405), and one end of the guide rod (403) away from the roller (404) is fixedly connected with a clamping block (406).

2. The clamping-stable end mill holder according to claim 1, characterized in that: The tapered barrel (405) is fixedly connected with the inner wall of the outer clamp (3) on the outer periphery, the guide rod (403) is slidingly connected with the inner clamp (2), and the outer periphery of the guide rod (403) is sleeved with a spring (407), the spring (407) is arranged inside the first cavity (401), and one side of the spring (407) is fixedly connected with the inner wall of the inner clamp (2).

3. The clamping-stable end mill holder according to claim 2, characterized in that: A cutter fixing channel is formed at the center of the bottom side of the inner clamp (2), and a milling cutter (6) is arranged in the cutter fixing channel.

4. The clamping-stable end mill holder according to claim 3, characterized in that: The inner clamp (2) is conical in cross-sectional shape, the outer periphery of the inner clamp (2) is threadedly connected with an outer clamp (3), the outer clamp (3) is threadedly connected with the outer periphery of the threaded connection end (7), the clamping block (406) is provided with elastic members on both sides, and the clamping block (406) is provided with an elastic protective layer on the inner periphery.

5. The clamping-stable end mill holder according to claim 4, characterized in that: The first cavity (401) and the mounting cavity are connected through a circular through hole, and the second cavity (402) is connected with the cutter fixing channel.

6. The clamping-stable end mill holder according to claim 5, characterized in that: The auxiliary cleaning assembly (5) includes a vertical plate (501), the vertical plate (501) is slidingly connected inside the second cavity (402), and the vertical plate (501) is fixedly connected with the outer periphery of the guide rod (403), one side of the vertical plate (501) is fixedly connected with the outer wall of the spring (407).

7. The clamping-stable end mill holder according to claim 6, characterized in that: The spring (407) is provided with an air bag (502) on both sides, the air bag (502) is fixedly connected with one side of the vertical plate (501) and the inner wall of the inner clamp (2), one side of the air bag (502) is connected with a one-way air inlet pipe, and the other side of the air bag (502) is connected with an air outlet pipe (503) through a pipe joint.

8. The clamping-stable end mill holder according to claim 7, characterized in that: The other end of the air outlet pipe (503) is connected with an annular barrel (504), the annular barrel (504) is fixedly connected inside the inner clamp (2), and the annular barrel (504) is arranged inside the cutter fixing channel, a cleaning block (506) is connected to the top of the annular barrel (504), an annular cavity is formed in the cleaning block (506), the annular cavity is connected with the annular barrel (504), and a plurality of one-way air outlets (507) are connected with one side of the annular cavity, and the plurality of one-way air outlets (507) are arranged on the inner periphery of the annular barrel (504).

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