CN212495454U - Arc-shaped turning tool clamp - Google Patents

Abstract

The utility model discloses a convex lathe tool anchor clamps belongs to lathe tool anchor clamps technical field, concretely relates to convex lathe tool anchor clamps. It includes cutter body, lock nut, pivot, bloated tight cover, bloated tight screw and mount pad, the pivot runs through the mount pad, and the pivot lower extreme is fixed through lock nut, and upper end conical surface external fixation has the tight cover that expands, and the top is provided with the tight screw that expands, the tight screw that expands cooperatees with the tight cover that expands, the cutter body is through the tight cover that expands and the tight fix with screw that expands in the pivot upper end. After the cutter is worn, only the rotating cutter is needed to rotate away from a place where the cutter is not sharp, the machining efficiency is improved by reducing the replacement frequency of the cutter, and time and labor are not wasted.

Description

Arc-shaped turning tool clamp

Technical Field

The utility model belongs to the technical field of the lathe tool anchor clamps, concretely relates to convex lathe tool anchor clamps.

Background

A tool is a tool used for cutting machining in machine manufacturing, and is also called a cutting tool. Most knives are machine, but also hand-held. Since tools used in machine manufacturing are basically used for cutting metal materials, the term "tool" is generally understood to mean a metal cutting tool.

Turning tools for turning of a numerical control lathe are generally divided into three types, namely a pointed turning tool, an arc turning tool and a forming turning tool. A turning tool is a tool for turning machining having a cutting portion. The turning tool is one of the most widely used tools in cutting processing, wherein the arc turning tool is characterized by an arc cutting edge with small error of roundness or line profile degree, and the arc turning tool can be used for turning the inner surface and the outer surface, and is particularly suitable for turning various smoothly connected (concave) forming surfaces.

The inventor finds that the prior arts have at least the following technical problems in the practical use process:

at present, the lathe tool that current lathe was used, fixed point or line are mostly as the cutting edge, in the use, because the cutter wearing and tearing are fast, need often grind the cutting edge or change the lathe tool, waste time and energy, influence machining efficiency.

Disclosure of Invention

For overcoming above-mentioned not enough that exists, the utility model discloses an inventor constantly reforms transform and innovate through long-term exploration attempt and many times's experiment and effort, provides a convex lathe tool anchor clamps, and it can reduce the cutter and change the frequency, improves machining efficiency.

In order to realize the purpose, the utility model adopts the technical scheme that: the utility model provides a convex lathe tool anchor clamps, it includes cutter body, lock nut, pivot, the tight cover that expands, the tight screw and mount pad expand, the pivot runs through the mount pad, and the pivot lower extreme is fixed through lock nut, and upper end conical surface external fixation has the tight cover that expands, and the top is provided with the tight screw that expands, the tight screw that expands cooperatees with the tight cover that expands, the cutter body is through the tight cover that expands and the tight fix with screw that expands in the pivot upper end.

According to convex lathe tool anchor clamps, its further preferred technical scheme is: and a composite bushing is sleeved on the contact surface of the rotating shaft penetrating through the mounting seat.

According to convex lathe tool anchor clamps, its further preferred technical scheme is: the contact surface of the mounting seat and the composite bushing is provided with a protrusion and a groove, the protrusion is in a sawtooth shape, and the groove is filled with silencing cotton.

According to convex lathe tool anchor clamps, its further preferred technical scheme is: and a washer is arranged on the rotating shaft between the locking nut and the mounting seat.

According to convex lathe tool anchor clamps, its further preferred technical scheme is: the upper surface of the adjusting nut is provided with a circle of scales.

According to convex lathe tool anchor clamps, its further preferred technical scheme is: the marks on the scale are spaced every forty degrees.

According to convex lathe tool anchor clamps, its further preferred technical scheme is: and a rubber shock pad is arranged on the rotating shaft between the cutter body and the mounting seat.

Compared with the prior art, the technical scheme of the utility model have following advantage beneficial effect:

the pivot runs through the mount pad, and the cutter body is fixed in the pivot to fix through bloated tight nut with bloated tight cover, bloated tight cover is through the effect of high strength tension bolt, produces huge power of hugging closely between inner ring and axle, between outer loop and the cutter body, in order to realize the keyless connection of cutter body and pivot. Its precision is high, and installation, adjustment, dismantlement are convenient, and intensity is high, and the connection is reliable and stable.

The bottom of pivot is provided with lock nut and adjusting nut, and lock nut screws up the back and can fix the pivot, loosens lock nut, rotates the pivot and drives the cutter rotatory, when the blade point ground not sharp, only needs to rotate the cutter, need not change cutting edge or lathe tool, has reduced the change frequency of cutter, and certain degree improves machining efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is the utility model relates to a convex lathe tool anchor clamps's schematic structure view.

Fig. 2 is a schematic structural view of the adjusting nut at the bottom of the rotating shaft of the present invention.

Fig. 3 is an enlarged schematic view of the composite bushing of the present invention.

The labels in the figure are respectively: 1. the tool comprises a tool body, a rotating shaft 2, a locking nut 3, a washer 4, a composite bushing 5, a rubber shock pad 6, an expansion screw 7, an expansion sleeve 8, a mounting seat 9, an adjusting nut 10, scales 11, a protrusion 12 and a groove 13.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the detailed description of the embodiments of the present invention provided below is not intended to limit the scope of the claimed invention, but is merely representative of selected embodiments of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

Example (b):

as shown in fig. 1, the tool comprises a tool body 1, a rotating shaft 2, a locking nut 3, a washer 4, a composite bushing 5, a rubber shock pad 6, an expansion screw 7, an expansion sleeve 8, a mounting seat 9, an adjusting nut 10, a scale 11, a protrusion 12 and a groove 13. There is a hole on the mount pad 9, and this hole cooperatees with pivot 2, pivot 2 through this hole from the top down run through mount pad 9, 2 upper end external fixations of pivot are with the tight cover 8 that expands, and the top is provided with the tight screw 7 that expands, the tight cover 8 that expands cooperatees with the tight screw 7 that expands and makes the steady fixing at 2 tops of pivot of cutter body 1. The lower end of the rotating shaft 2 is provided with a locking nut 3, and the rotating shaft 2 penetrates through the mounting seat 9 and is provided with a composite bushing 5 on the contact surface with the mounting seat 9. The one side that mount pad 9 and composite bush 5 contacted is provided with arch 12 and recess 13, arch 12 is the cockscomb structure, be equipped with the amortization cotton in the recess 13.

Be provided with packing ring 4 between lock nut 3 and the mount pad 9, the below of lock nut 3 is provided with adjusting nut 10, adjusting nut 10 and pivot 2 fixed connection to mark scale 11 on adjusting nut 10, the mark on scale 11 is according to every forty degrees intervals one, that is to say there are nine marks. And a rubber shock absorption pad 6 is arranged between the cutter body 1 and the mounting seat 9. The cutter is fixed on the top rotating shaft 2 and is fixed through an expansion screw 7 and an expansion sleeve 8.

During the use, fix cutter body 1 on this anchor clamps earlier, tighten lock nut 3, then rotatory tight screw 7 that expands, the tight cover 8 that expands is pressed down, press from both sides tight cutter body 1, cutter body 1 will be by fixed, after the cutter uses a period, the blade point of its cutting department can be ground unsharpness, need not change the cutter this moment, only need to unscrew lock nut 3 some, then rotatory adjusting nut 10, 2 tops of pivot make cutter body 1 firmly fixed on pivot 2 through tight screw 7 that expands and tight cover 8 that expands, this moment, pivot 2 rotates, then it is rotatory to drive cutter body 1, make the blade point of wearing and tearing rotate to the periphery, sharp blade point removes to the place that needs, replace the position of the blade point of original wearing and tearing, be provided with scale 11 on the adjusting nut 10, can observe cutter body 1 rotation angle size at any time during the rotation. After the non-abraded blade rotates to the position of the worn blade, the locking nut 3 only needs to be screwed down, after the fixing is completed, the cutter body 1 can start to work, the operation is convenient and fast, time is not wasted, the blade needs to be replaced or the blade is ground after the blade is dull, and the working efficiency is improved.

The clamp is provided with a composite bushing at the penetrating part of a rotating shaft and a mounting seat, the composite bushing takes a steel plate as a matrix, spherical bronze powder is sintered in the middle, and a mixture of Polytetrafluoroethylene (PTFE) and lead is rolled on the surface to form the composite bushing (MSB). It has the features of small friction coefficient, high wear resistance, high corrosion resistance and no oil lubrication. The product has the advantages of reducing cost, reducing mechanical volume, avoiding the phenomenon of shaft biting, reducing mechanical noise and the like.

Be provided with arch and recess on the contact surface of mount pad and composite bushing, the arch can prevent that composite bushing from skidding, is equipped with the amortization cotton in the recess, because the cutter is great at during operation sound, the amortization cotton can play the effect of less noise.

The washer is arranged between the locking nut at the bottom of the rotating shaft and the mounting seat, and the washer is a part which is cushioned between the connected piece and the nut. The metal ring, which is generally flat, protects the surface of the connected component from scratching by the nut and distributes the pressure of the nut against the connected component. The washer of the device is preferably suitable for a lock washer, and the working principle of the lock washer is very simple. It consists of two gaskets. The outer side is provided with a radial convex grain surface, and the inner side is a bevel tooth surface. When the connecting piece is vibrated and the bolt is loosened, only the relative dislocation between the inner oblique tooth surfaces of the two gaskets is allowed to generate lifting tension, so that 100% locking is achieved.

The rubber shock pad sets up between cutter body and mount pad. Most of rubber shock pads are rubber and metal composite products, have multiple forms such as double-plate type, cylinder type, piece type and the like, are used for shock absorption and sound insulation of various machines, instruments, axles and pipelines, have high noise during cutting, and can play a role in reducing noise and absorb shock. The rubber shock pad is characterized by high elasticity and high viscosity. The elasticity of rubber is generated by the change of the coiled molecular conformation, and the rubber intermolecular interaction can obstruct the movement of molecular chains, thereby showing the characteristic of viscous damping, so that the stress and the strain are always in an unbalanced state. The coiled long-chain molecular structure of the rubber and the weak secondary force existing among molecules enable the rubber material to present unique viscoelastic performance, so that the rubber material has good shock absorption, sound insulation and buffering performance. Rubber components are widely used for shock isolation and shock absorption because of their hysteresis, damping and reversible large deformation characteristics.

The clamp is fixed by an expansion sleeve and an expansion screw. The expansion sleeve is an advanced basic component which is widely used for mechanical coupling under heavy load in the world at present, and in the coupling of a wheel and a shaft, the expansion sleeve is a keyless coupling device which realizes load transmission by tightening a high-strength bolt to enable pressure and friction force generated between containing surfaces to realize load transmission. The principle and the purpose are that under the action of the high-strength tension bolt, huge holding force is generated between the inner ring and the shaft and between the outer ring and the hub, so that the mechanical part is connected with the shaft without a key. When bearing load, the combined pressure of the expansion sleeve and the machine member and the shaft and the accompanying friction force are used to transmit torque and axial force or the composite load of the torque and the axial force. The expansion sleeve has the advantages of high centering precision, convenient installation, adjustment and disassembly, high strength, stable and reliable connection, and capability of protecting equipment from being damaged during overload, and is particularly suitable for transmitting heavy loads.

The locking nut is widely applied to the industries of machinery and the like, and the working principle of the locking nut is that the self-locking is carried out by adopting the friction force between the nut and a bolt. The quality of the anti-loose effect of the locknut is mainly determined by the interaction force between the meshed threads of the nut and the bolt.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. The first feature being "under," "below," and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or merely indicates that the first feature is at a lower level than the second feature.

The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the spirit and scope of the invention, and such modifications and enhancements are intended to be within the scope of the invention.

Claims (8)

1. The utility model provides a convex lathe tool anchor clamps, includes the cutter body, its characterized in that still includes lock nut, pivot, the tight cover that expands, the tight screw and mount pad expand, the pivot runs through the mount pad, and the pivot lower extreme is fixed through lock nut, and upper end conical surface external fixation has the tight cover that expands, and the top is provided with the tight screw that expands, the tight screw that expands cooperatees with the tight cover that expands, the cutter body is through the tight cover that expands and the tight fix with screw that expands in the pivot upper end.

2. The arc-shaped turning tool fixture according to claim 1, wherein a composite bushing is sleeved on a contact surface of the rotating shaft penetrating through the mounting seat.

3. The arc turning tool clamp according to claim 2, wherein a protrusion and a groove are arranged on a contact surface of the mounting seat and the composite bushing, the protrusion is in a sawtooth shape, and silencing cotton is arranged in the groove.

4. The arc-shaped turning tool clamp according to claim 3, wherein a washer is arranged on the rotating shaft between the locking nut and the mounting seat.

5. The arc turning tool fixture according to any one of claims 1 to 4, wherein an adjusting nut is arranged below the locking nut, and the adjusting nut is fixedly connected with the rotating shaft.

6. The turning tool clamp according to claim 5, wherein the adjusting nut is provided with a circle of scales on the upper surface.

7. The turning tool holder of claim 6, wherein the marks on the scale are spaced every forty degrees.

8. The arc turning tool clamp according to claim 6, wherein a rubber shock pad is arranged on the rotating shaft between the tool body and the mounting seat.

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