Anti-loosening milling cutter

Abstract

The utility model discloses an anti-loosening milling cutter which comprises a butt-joint disc, a bearing seat, two limiting plates, an adjusting seat and a limiting mechanism, and is characterized in that the butt-joint disc is connected to an external clamping component, the bearing seat is fixed at the axis of the butt-joint disc, and the two limiting plates are symmetrically fixed on two sides of the bearing seat; and the adjusting seat is clamped in front of the two adjacent limiting plates in a sliding manner and is positioned above the bearing seat. The milling cutter has the beneficial effects that the cutter bar of the milling cutter is limited through the bearing seat and the adjusting seat, and meanwhile, the cutter bar is locked through the arrangement of the limiting mechanism and the extrusion action of the balls in the limiting mechanism on the inner wall of the mounting cavity, so that the cutter bar is prevented from being damaged when the milling operation is carried out, and the service life of the milling cutter is prolonged. The cutter bar slides in the external clamping component under the pressure, so that the milling cutter is effectively prevented from loosening during machining, meanwhile, when the milling cutter bar needs to move upwards, the cutter bar is lifted through the movement of the adjusting seat, and the milling cutter bar is simple, efficient and practical.

Description

TECHNICAL FIELD

[0001] The utility model relates to a milling cutter, concretely is a kind of anti-loosening milling cutter, belong to milling cutter technical field. BACKGROUND

[0002] Milling cutter is a kind of cutting tool for cutting metal workpiece, one end is the cutter head for cutting metal workpiece, the other end is the shank for installation, when needing to use, the shank is connected with the clamping member on the external machine tool, the clamping member with the shank and cutter head with anti-loosening function are jointly formed into anti-loosening milling cutter, and the workpiece is cut by cutter head.

[0003] However, the existing anti-loosening milling cutter mostly has various problems, for example, in the anti-loosening milling cutter disclosed in the publication No. CN217889628U, the cutter head is fixed by fastener and shank; the first blocking piece on the cutter head and the second blocking piece on the shank are locked by mutual cooperation to prevent the cutter head and the shank from rotating around the center, further preventing the loosening of the fastener; thereby fixing the cutter head and the shank from two mutually perpendicular directions, significantly reducing the probability of the cutter head separating from the shank, and reducing the safety hazard, but in the technical solution, it only guarantees the anti-loosening between the shank and the cutter head, in most of the current structures, the shank is often clamped around by several clamping plates when being connected with the external clamping member, and when the workpiece is processed by the cutter head, the milling cutter will be subjected to a large pressure, which may cause the shank and the clamping member to slide, and further cause the milling cutter to loosen, affecting the processing accuracy. UTILITY MODEL CONTENTS

[0004] The utility model technical scheme aims at the technical problem that the prior art solution is too single, provides a solution significantly different from the prior art, specifically, the purpose of the utility model is to solve the above-mentioned shortcomings in the prior art, and a kind of anti-loosening milling cutter is proposed.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A kind of anti-loosening milling cutter, including butt joint disc, support seat, limit plate, adjusting seat and limiting mechanism, the butt joint disc is connected on external clamping member, the support seat is fixed at butt joint disc axle center, the limit plate is provided with two, and two limit plates are fixed symmetrically at the both sides of support seat, the adjusting seat is slidably connected before adjacent two limit plates, and located above support seat;

[0007] The limiting mechanism is arranged inside the supporting seat and the adjusting seat, and comprises a mounting cavity, a limiting cylinder, an adjusting cylinder, a clamping groove and balls, the mounting cavity is arranged at the axial center of the supporting seat and the adjusting seat respectively, the limiting cylinder is slidingly connected in the mounting cavity, the adjusting cylinder is coaxially fixed at the bottom of the limiting cylinder, the clamping groove is arranged on the side wall of the adjusting cylinder and penetrates the cavity inside the adjusting cylinder, and the balls are slidingly connected in the clamping groove and partially abut against the inner wall of the mounting cavity.

[0008] As a further scheme of the utility model, the bottom of the mounting cavity and the adjusting cylinder are both in the shape of a circular truncated cone.

[0009] As a further scheme of the utility model, a butt joint cylinder is coaxially fixed at the top of the limiting cylinder, and the butt joint cylinder is partially arranged in the mounting cavity.

[0010] As a further scheme of the utility model, a first reset spring is arranged outside the butt joint cylinder, one end of the first reset spring abuts against the limiting cylinder, and the other end abuts against the top end of the mounting cavity.

[0011] As a further scheme of the utility model, a sliding groove is arranged on the inner side of the limiting plate, and a sliding block is fixed on the side wall of the adjusting seat and slidingly connected in the sliding groove.

[0012] As a further scheme of the utility model, a second reset spring is arranged between the supporting seat and the adjusting seat.

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

[0014] In the utility model, the cutter bar of the milling tool is positioned through the supporting seat and the adjusting seat, and the cutter bar is locked through the extrusion of the balls in the inner wall of the mounting cavity in the limiting mechanism, so that the cutter bar is prevented from sliding in the external clamping member under the pressure during the milling operation, the loosening of the milling tool during the machining is effectively prevented, the adjusting seat can be moved to one end of the supporting seat when the milling cutter bar needs to be moved upward, the balls slide in the mounting cavity and are separated from the milling cutter bar by sliding the adjusting seat downward, then the adjusting seat is moved upward to reset, the cutter bar is locked under the extrusion of the balls in the inner wall of the mounting cavity when the adjusting seat moves, and then the cutter bar is lifted, which is simple, efficient and practical. BRIEF DESCRIPTION OF DRAWINGS

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

[0016] Figure 2 It is the supporting seat and the overall connection structure schematic diagram of the utility model;

[0017] Figure 3The utility model discloses a limiting mechanism structure schematic view.

[0018] Figure 4 The utility model discloses an adjusting seat profile structure schematic view.

[0019] In the drawing: 1, butt joint disc, 2, bearing seat, 3, limiting plate, 4, adjusting seat, 5, limiting mechanism, 51, installation cavity, 52, limiting cylinder, 53, adjusting cylinder, 54, clamping groove, 55, ball, 56, butt joint cylinder, 57, first return spring, 6, sliding slot, 7, sliding block, 8, second return spring. 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 and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model. Embodiment one

[0021] As Figures 1 to 4 shown, a kind of anti-loosening milling cutter, including butt joint disc 1, bearing seat 2, limiting plate 3, adjusting seat 4 and limiting mechanism 5, butt joint disc 1 is connected on external clamping member, bearing seat 2 is fixed at butt joint disc 1 axle center, limiting plate 3 is provided with two, and two limiting plate 3 is fixed on the both sides of bearing seat 2 symmetrically, adjusting seat 4 is slidably connected before adjacent two limiting plate 3, and is located above bearing seat 2;

[0022] Limiting mechanism 5 is arranged in the inside of bearing seat 2 and adjusting seat 4, and limiting mechanism 5 includes installation cavity 51, limiting cylinder 52, adjusting cylinder 53, clamping groove 54 and ball 55, installation cavity 51 is respectively arranged at the axle center in the inside of bearing seat 2 and adjusting seat 4, limiting cylinder 52 is slidably connected in installation cavity 51, adjusting cylinder 53 is fixed coaxially at the bottom of limiting cylinder 52, clamping groove 54 is arranged on the side wall of adjusting cylinder 53, and is penetrated with adjusting cylinder 53 inside cavity, ball 55 is slidably connected in clamping groove 54, and part is abutted with installation cavity 51 inner wall, the bottom of installation cavity 51 and adjusting cylinder 53 whole are all circular truncated cone structure.

[0023] In this invention, the milling cutter shank is limited by the support seat 2 and the adjusting seat 4. Simultaneously, the limiting mechanism 5, through the compression of the ball bearings 55 within the limiting mechanism 5 against the inner wall of the mounting cavity 51, locks the shank, preventing it from sliding under pressure within the external clamping components during milling operations. This effectively prevents the milling cutter from loosening during machining. Furthermore, when the milling cutter shank needs to move upwards, the adjusting seat 4 slides downwards, causing the ball bearings 55 to slide within the mounting cavity 51 and separate from the milling cutter shank. This allows the adjusting seat 4 to move to one end of the support seat 2. Then, the adjusting seat 4 is moved upwards to reset it. Simultaneously, the ball bearings 55, under the compression of the inner wall of the mounting cavity 51, lock the shank, allowing it to be lifted. This design is simple, efficient, and practical. Example 2

[0024] like Figures 1 to 4 As shown, in addition to all the technical features included in Embodiment 1, this embodiment also includes:

[0025] The top of the limiting cylinder 52 is coaxially fixed with a docking cylinder 56, which is located in the mounting cavity 51. The milling cutter bar is limited by the docking cylinder 56.

[0026] A first reset spring 57 is sleeved on the outside of the docking cylinder 56. One end of the first reset spring 57 abuts against the limiting cylinder 52, and the other end abuts against the top of the mounting cavity 51. The limiting cylinder 52 can be quickly reset by the elastic force of the first reset spring 57.

[0027] The inner side of the limiting plate 3 is provided with a sliding groove 6, and a slider 7 is fixed on the side wall of the adjusting seat 4. The slider 7 is slidably engaged in the sliding groove 6, and the adjusting seat 4 can be limited to slide through the sliding groove 6.

[0028] A second return spring 8 is provided between the support 2 and the adjusting seat 4, and the adjusting seat 4 can be quickly reset by the elastic force of the second return spring 8.

[0029] Working principle: When using this milling cutter, first insert the milling cutter bar through the bottom of the docking plate 1 and out through the top of the adjusting seat 4. Then connect the milling cutter bar to the external clamping component and fix the docking plate 1 on the external clamping mechanism. During use, the milling cutter bar is limited and locked by the limiting mechanism 5, and milling operations can be performed by the milling cutter bar. When it is necessary to adjust the length of the top of the milling cutter bar, first loosen the external clamping mechanism, then slide the adjusting seat 4 downward, so that the ball 55 slides in the mounting cavity 51 and separates from the milling cutter bar, thereby allowing the adjusting seat 4 to move to one end of the support seat 2. Then move the adjusting seat 4 upward to reset it. While the adjusting seat 4 is moving, the ball 55 locks the cutter bar under the squeezing action of the inner wall of the mounting cavity 51, and then the cutter bar can be lifted.

[0030] 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.

[0031] Furthermore, it should be understood that although the present specification is described in terms of embodiments, not every embodiment according to the present specification needs to exhibit each and every characteristic specified in the present specification. The specification can also be described in terms of a single independent technical solution, but this does not mean that each embodiment only contains one independent technical solution. The 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 can be understood by a person skilled in the art.

Claims

1. A kind of anti-loosening milling cutter, including butt joint disc (1), supporting seat (2), limiting plate (3), adjusting seat (4) and limiting mechanism (5), it is characterized in that, The docking disc (1) is connected to an external clamping member, the supporting seat (2) is fixed at the center of the docking disc (1), the limiting plates (3) are provided with two, and the two limiting plates (3) are symmetrically fixed on the two sides of the supporting seat (2), and the adjusting seat (4) is slidingly connected between the two limiting plates (3) and located above the supporting seat (2). The limiting mechanism (5) is arranged in the supporting seat (2) and the adjusting seat (4), and the limiting mechanism (5) comprises an installation cavity (51), a limiting cylinder (52), an adjusting cylinder (53), a clamping groove (54) and a ball (55), the installation cavity (51) is arranged at the center of the supporting seat (2) and the adjusting seat (4) respectively, the limiting cylinder (52) is slidingly connected in the installation cavity (51), the adjusting cylinder (53) is coaxially fixed at the bottom of the limiting cylinder (52), the clamping groove (54) is arranged on the side wall of the adjusting cylinder (53) and communicates with the inner cavity of the adjusting cylinder (53), and the ball (55) is slidingly connected in the clamping groove (54) and partially abuts against the inner wall of the installation cavity (51).

2. The self-retaining milling cutter according to claim 1, wherein: The bottom of the installation cavity (51) and the adjusting cylinder (53) are both in the shape of a circular truncated cone.

3. The self-retaining milling cutter according to claim 1, wherein: The top of the limiting cylinder (52) is coaxially fixed with a docking cylinder (56), and the docking cylinder (56) is partially located in the installation cavity (51).

4. The self-retaining milling cutter according to claim 3, wherein: The docking cylinder (56) is externally sleeved with a first reset spring (57), one end of the first reset spring (57) abuts against the limiting cylinder (52), and the other end abuts against the top end of the installation cavity (51).

5. The self-retaining milling cutter according to claim 1, wherein: The inner side of the limiting plate (3) is provided with a sliding groove (6), and the side wall of the adjusting seat (4) is fixed with a sliding block (7) which is slidingly connected in the sliding groove (6).

6. The self-retaining milling cutter according to claim 1, wherein: The second reset spring (8) is arranged between the supporting seat (2) and the adjusting seat (4).

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