Ball-end milling cutter capable of being quickly mounted

Abstract

The utility model discloses a ball-end milling cutter capable of being installed quickly, which comprises a base, a cutter holder, a ball-end milling cutter bar and a locking mechanism, the cutter holder is placed at the top of the base, the ball-end milling cutter bar is fixed at the center of the top of the cutter holder, and the locking mechanism is arranged on the base. The clamping device has the advantages that the locking mechanism is arranged, one clamping plate is in eccentric linkage through rotation of the eccentric cam in the locking mechanism, then the clamping plate is driven to rotate on the fixing base, meanwhile, the linkage rod is pushed to move through the eccentric cam, then the abutting rod is driven to be in linkage, and the clamping plate is driven to rotate on the fixing base. The other clamping plate is driven by the abutting rod to be synchronously linked, so that the two adjacent clamping plates can be synchronously linked and abut against the abutting disc, the overall rapid locking effect on the tool apron and the ball-end milling cutter arbor is achieved, meanwhile, after the ball-end milling cutter arbor with different diameters is locked, the axes can be located at the same position, and the machining precision of the ball-end milling cutter arbor is improved. The position change of the cutter bar of the ball-end milling cutter is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a ball end mill, concretely to a ball end mill capable of being quickly installed, belongs to the ball end mill technical field. BACKGROUND

[0002] Ball end mill is the assembly in milling machine for milling various curved surface, circular arc groove cutter of ball head, ball end mill also called R knife, ball end mill can mill die steel, cast iron, carbon steel, alloy steel, tool steel, general iron material, belongs to vertical milling cutter, ball end mill can operate normally under high temperature environment.

[0003] However, the existing ball end mill mostly has various problems, for example, in the ball end mill disclosed in the public number CN113695653B, although a large number of cutting teeth are arranged on the spherical cutter head, the machining requirement of high-precision difficult-to-machine mold can be met, the number of cutting teeth closer to the center end is less, which is beneficial to workpiece waste discharge and improves machining quality, but in the process of machining, the ball end mill often needs to be replaced according to the actual situation, however, the current ball end mill often needs a large amount of time for dismounting operation when cooperating with the external machine tool, which seriously affects the work efficiency, although part of the ball end mill and the fixed machine tool are provided with cam structures to cooperate with the clamping plate to lock the milling cutter, however, the current cam can only drive one clamping plate to move, and the milling cutter is clamped and locked through the combination of the clamping plate and the limiting structure on the machine tool, this structure can realize the quick dismounting of the milling cutter, but since the milling cutters with different diameters are moved through the clamping plate during fixing, the axial positions of the fixed ball end mills are different, the position of the adjusting device needs to be adjusted, which is tedious and time-consuming and labor-consuming. UTILITY MODEL CONTENTS

[0004] The utility model technical scheme provides a solution significantly different from the prior art in view of the technical problem that the prior art solution is too single, specifically, the purpose of the utility model is to solve the above-mentioned shortcomings in the prior art, and a ball end mill capable of being quickly installed is provided.

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

[0006] A ball end mill capable of being quickly installed, comprising a base, a tool holder, a ball end mill rod and a locking mechanism, the tool holder is placed on the top of the base, the ball end mill rod is fixed at the top center of the tool holder, and the locking mechanism is arranged on the base.

[0007] The locking mechanism comprises a fixed seat, a clamping plate, a butt joint disc and an eccentric cam, the fixed seat is fixed on the side wall of the base, two fixed seats are symmetrically arranged on the two sides of the base, the clamping plate is rotationally connected to the fixed seat and is symmetrically provided with two clamping plates, the butt joint disc is fixed on the bottom of the tool holder, and one end of the clamping plate is abutted with the butt joint disc, and one end of one of the clamping plates is rotationally connected to the edge of the eccentric cam.

[0008] As a further scheme of the utility model: the locking mechanism further comprises a linkage rod and an abutting rod, a through hole is formed through the base, the linkage rod is slidingly connected in the through hole, the abutting rod is fixed on the other clamping plate, one end of the linkage rod is slidingly abutted with the abutting rod, and the other end is slidingly abutted with the eccentric cam.

[0009] As a further scheme of the utility model: the outer wall of the eccentric cam and one end of the linkage rod close to the eccentric cam are all subjected to frosted treatment.

[0010] As a further scheme of the utility model: one end of the linkage rod close to the abutting rod and the end point of the abutting rod are both smooth arc surfaces.

[0011] As a further scheme of the utility model: a notch is formed through the center of the base, and a spring is arranged between the two adjacent clamping plates, and the spring passes through the notch.

[0012] As a further scheme of the utility model: a positioning hole is concavely arranged in the center of the top end of the base, and a positioning rod is fixed in the center of the bottom of the tool holder, and the positioning rod is inserted into the positioning hole.

[0013] The utility model discloses the beneficial effect is:

[0014] In the utility model, through setting up the locking mechanism, and then through the rotation of the eccentric cam in the locking mechanism, the eccentric linkage of one clamping plate is realized, and the clamping plate is driven to rotate on the fixed seat, and at the same time, the eccentric cam drives the linkage rod to move, and then drives the abutting rod to link, and the abutting rod drives the synchronous linkage of the other clamping plate, so that the synchronous linkage of the two adjacent clamping plates is realized, and the abutment with the butt joint disc is realized, and then the quick locking effect of the tool holder and the ball head milling cutter rod is realized, and at the same time, the shaft center of the ball head milling cutter rod with different diameters can be located at the same position after being locked, so that the position change of the ball head milling cutter rod is avoided, and the utility model is simple, efficient and practical. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is external whole structure schematic diagram of the utility model;

[0016] Figure 2The utility model discloses a tool holder and integral connection structure schematic diagram shows.

[0017] Figure 3 The utility model discloses base connection structure schematic diagram shows.

[0018] Figure 4 The utility model discloses clamping plate and connection structure schematic diagram shows.

[0019] In the drawing: 1, base, 2, tool holder, 3, ball head milling cutter arbor, 4, locking mechanism, 41, fixed seat, 42, clamping plate, 43, butt joint disc, 44, eccentric cam, 45, linkage rod, 46, abutment rod, 5, spring, 6, positioning hole, 7, positioning rod. DETAILED DESCRIPTION

[0020] 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, not 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 the utility model. Embodiment one

[0021] As Figures 1 to 4 shown, a ball head milling cutter capable of being quickly installed includes base 1, tool holder 2, ball head milling cutter arbor 3 and locking mechanism 4, tool holder 2 is placed at the top of base 1, ball head milling cutter arbor 3 is fixed at the top center of tool holder 2, and locking mechanism 4 is arranged on base 1.

[0022] Locking mechanism 4 includes fixed seat 41, clamping plate 42, butt joint disc 43 and eccentric cam 44, fixed seat 41 is fixed on the side wall of base 1, and fixed seat 41 is provided with two, two fixed seats 41 are symmetrically arranged on the two sides of base 1, clamping plate 42 is rotatably connected on fixed seat 41, and is provided with two symmetrically, butt joint disc 43 is fixed at the bottom of tool holder 2, and one end of clamping plate 42 abuts against butt joint disc 43, and one end, away from butt joint disc 43, of one of clamping plate 42 is rotatably connected at the edge of eccentric cam 44.

[0023] Locking mechanism 4 further includes linkage rod 45 and abutment rod 46, a through hole is arranged through base 1, linkage rod 45 is slidably connected in the through hole, abutment rod 46 is fixed on the other clamping plate 42, one end of linkage rod 45 slidably abuts against abutment rod 46, and the other end slidably abuts against eccentric cam 44.

[0024] In the utility model, through setting locking mechanism 4, further through the rotation of eccentric cam 44 in locking mechanism 4 makes one clamping plate 42 eccentric linkage, further drives the rotation of the clamping plate 42 on fixed seat 41, and simultaneously through eccentric cam 44 promotes linkage lever 45 to move, further drives the linkage of abutment rod 46, through abutment rod 46 drives the synchronous linkage of another clamping plate 42, makes adjacent two clamping plates 42 can synchronous linkage, and abuts with butt joint disc 43, further realizes the quick locking effect of ball head milling cutter arbor 3 and the whole of tool holder 2, and simultaneously makes the shaft center of ball head milling cutter arbor 3 of different diameters can be located at the same position after being locked, avoids the change of ball head milling cutter arbor 3 position, simple, efficient and practical. Example two

[0025] As Figures 1 to 4 Indicated, in addition to including all the technical features in example one, the embodiment also includes:

[0026] The outer wall of eccentric cam 44 and the end of linkage lever 45 close to eccentric cam 44 are all frosted, which increases the frictional resistance through frosted treatment, avoiding the sliding between eccentric cam 44 and linkage lever 45 after locking ball head milling cutter arbor 3.

[0027] The end of linkage lever 45 close to abutment rod 46 and the end of abutment rod 46 are both smooth arc surfaces, which makes linkage lever 45 drive abutment rod 46 to quickly link.

[0028] The center of base 1 is provided with a notch, and spring 5 is arranged between adjacent two clamping plates 42, spring 5 passes through the notch, which makes adjacent two clamping plates 42 can synchronously link.

[0029] The center of the top of base 1 is concavely provided with positioning hole 6, and the bottom center of tool holder 2 is fixed with positioning rod 7, positioning rod 7 is inserted into positioning hole 6, which makes tool holder 2 can be precisely positioned and butt joint with base 1 through positioning rod 7.

[0030] Working principle: when using the ball head milling cutter, first, tool holder 2 is inserted into positioning hole 6 through positioning rod 7, and butt joint disc 43 is attached to base 1, then eccentric cam 44 is rotated, one clamping plate 42 is eccentrically linked, and linkage lever 45 is moved through eccentric cam 44, further drives abutment rod 46 to link, another clamping plate 42 is synchronously linked through abutment rod 46, which makes adjacent two clamping plates 42 can synchronously link, and abut with butt joint disc 43, further the whole of tool holder 2 and ball head milling cutter arbor 3 can be quickly locked on base 1.

[0031] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0032] Furthermore, it should be understood that although the present specification describes exemplary embodiments, not every embodiment contains only one independent technical solution, and the present specification is described in this way only for the sake of clarity, and a person skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that a person skilled in the art can understand.

Claims

1. A ball nose cutter capable of quick installation, comprising a base (1), a cutter seat (2), a ball nose cutter cutter rod (3) and a locking mechanism (4), characterized in that, The cutter holder (2) is placed on the top of the base (1), the ball-end mill arbor (3) is fixed at the top center of the cutter holder (2), and the locking mechanism (4) is arranged on the base (1); The locking mechanism (4) comprises a fixed seat (41), a clamping plate (42), a butt joint disc (43) and an eccentric cam (44), the fixed seat (41) is fixed on the side wall of the base (1), and two fixed seats (41) are symmetrically arranged on the two sides of the base (1), the clamping plate (42) is rotatably connected to the fixed seat (41) and is symmetrically provided with two clamping plates (42), the butt joint disc (43) is fixed at the bottom of the cutter holder (2), and one end of the clamping plate (42) is in abutment with the butt joint disc (43), and one end of the clamping plate (42) away from the butt joint disc (43) is rotatably connected to the edge of the eccentric cam (44).

2. A ball nose cutter capable of quick mounting according to claim 1, characterized in that: The locking mechanism (4) further comprises a linkage rod (45) and an abutment rod (46), the base (1) is provided with a through hole, the linkage rod (45) is slidably connected in the through hole, and the abutment rod (46) is fixed on the other clamping plate (42); one end of the linkage rod (45) is in sliding abutment with the abutment rod (46), and the other end is in sliding abutment with the eccentric cam (44).

3. A ball nose cutter capable of quick mounting according to claim 2, characterized in that: The outer wall of the eccentric cam (44) and one end of the linkage rod (45) close to the eccentric cam (44) are ground.

4. A ball nose cutter capable of quick mounting according to claim 2, characterized in that: One end of the linkage rod (45) close to the abutment rod (46) and the end of the abutment rod (46) are smooth arc surfaces.

5. A ball nose cutter capable of quick mounting according to claim 1, characterized in that: The center of the base (1) is provided with a notch, and a spring (5) is arranged between the two adjacent clamping plates (42), and the spring (5) passes through the notch.

6. A ball nose cutter capable of quick mounting according to claim 1, characterized in that: The center of the top of the base (1) is recessed to form a positioning hole (6), and the bottom center of the cutter holder (2) is fixed with a positioning rod (7), and the positioning rod (7) is inserted into the positioning hole (6).

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