CN210549920U - Cutter arbor capable of spraying cutting fluid - Google Patents

Abstract

The utility model belongs to the technical field of the machine tool, concretely relates to cutter arbor of cutting fluid can be sprayed. Comprises a cutter bar body and an injection unit. The spraying unit arranged on the cutter bar body is provided with the inflow port and the outflow port, the inflow port is connected into the cutting fluid supply pipeline, a pipeline specially used for flowing of the cutting fluid is not needed to be arranged on the cutter bar body, the cutting fluid can be sprayed to the blade in a short distance only by the arrangement of the spraying unit, and the cutter bar does not need to be replaced.

Description

Cutter arbor capable of spraying cutting fluid

The technical field is as follows:

the utility model belongs to the technical field of the machine tool, concretely relates to cutter arbor of cutting fluid can be sprayed.

Background art:

the tool is a tool which is arranged on a machine tool and used for cutting a workpiece, and can be used for milling, turning, drilling, reaming and milling and the like. Therefore, the hardness and wear resistance of the cutting tool are highly required, and hard wear-resistant materials such as cemented carbide, silicon nitride, and alumina are generally selected to meet the requirements.

A blade refers to a component that is mounted on a tool holder and processes the surface of a workpiece at an angle. During cutting, chips are generated from the workpiece, and frictional heat is generated between the insert and the workpiece, and a cutting fluid is used to cool the frictional heat. The cutting fluid is generally ejected from an additional ejection device other than the tool holder, and the ejection device is located on the side of the tool holder. In this case, if the cutting fluid injection pressure injected to the contact portion between the insert and the workpiece is insufficient, the chips are not smoothly discharged, and the insert is damaged by high temperature, the life is shortened, and the machining quality is deteriorated.

In order to solve the problem, the prior art generally adopts a cutting fluid injection device directly mounted on a cutter bar of a cutter. By adopting the mode, the spraying pressure of the cutting fluid at the contact part of the blade and the workpiece is proper, and the contact part can be effectively cooled. However, if this method is adopted, a pipe for flowing the cutting fluid is required in the tool bar, and the cutting fluid injection device is connected in the pipe, but the existing tool bar without the pipe cannot be used, and must be replaced by a new tool bar with a pipe, which results in higher cost.

The utility model has the following contents:

the to-be-solved technical problem of the utility model is that when adopting the mode of direct mount cutting fluid injection apparatus on the cutter arbor, the inside pipeline that need have the circulation cutting fluid of cutter arbor to connect cutting fluid injection apparatus in this pipeline, nevertheless the current cutter arbor that does not have the pipeline can't be used, must replace for the new cutter arbor that has the pipeline, produces higher cost.

In order to solve the problem, the utility model provides a but cutter arbor of jet cutting fluid need not to change the cutter arbor and also can ensure to carry out properly at blade and work piece contact site and jet the cutting fluid.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a cutter bar capable of spraying cutting fluid comprises a cutter bar body and a spraying unit, wherein the spraying unit is connected with a cutting fluid supply pipeline, receives the cutting fluid through the cutting fluid supply pipeline and sprays the cutting fluid to a blade;

the cutter bar body is a strip-shaped component arranged on cutting processing equipment and comprises a long rod and a protruding part, the protruding part is positioned at one end of the cutter bar body, the rear side of the cutter bar body is the long rod, a fixing groove is arranged at the connecting part of the long rod and the long rod, and the front end of the protruding part is protruded and is a blade fixing part for mounting a blade I;

the spraying unit is connected with the cutter bar body and sprays cutting fluid to the blade I; the spraying unit can be of a clamp type for combining the blade I on the cutter bar body; the spraying unit comprises a main block which is fixedly connected with the protruding part through a tightening bolt; a pressure bulge is arranged below the main block to press the blade I, and a fixing bulge is arranged on the other side below the main block and clamped with the fixing groove to prevent the main block from displacing relative to the cutter bar body; the main block is provided with an outflow port pointing to the blade I, and cutting fluid flowing out of the outflow port points to the blade I;

as shown in fig. 2 and 3, the main block further includes an inflow port, which is located opposite to the outflow port, and one end of which is connected to a cutting fluid supply pipe for supplying a cutting fluid, and the other end of which is communicated with the outflow port; a communicating hole is arranged between the upper end and the lower end of the main block, and the tightening bolt is positioned in the communicating hole; the communicating hole is also provided with a guide component which is an annular sleeve surrounding the handle part of the tightening bolt, is communicated with the inflow port and the outflow port respectively and is a guide channel for guiding the cutting fluid flowing into the inflow port to the outflow port.

Furthermore, the communicating hole is provided with a guide component which guides the cutting fluid from the inflow port to the outflow port and comprises a cylinder part, a main groove, an auxiliary groove and a sealing ring, wherein the cylinder part is in a cylinder shape and has a hole in the middle, and a tightening bolt passes through the hole in the middle; the main groove and the auxiliary groove are concave circular grooves positioned on the outer peripheral surface of the cylinder part, the auxiliary groove is positioned at the upper end and/or the lower end of the main groove, and the main groove and the inner peripheral surface of the communicating hole form a channel for the circulation of cutting fluid; the seal ring is clamped in the auxiliary groove to avoid the leakage of the cutting fluid passing through the main groove to the outside of the communication hole.

As shown in fig. 4, the inflow port is connected with the cutting fluid through the cutting fluid supply pipeline, and is independent of the cutter bar body; the cutting fluid flows to the outflow port through the communication hole, and the cutting fluid sprayed from the outflow port is directed to the blade I. At this time, the cutting fluid flows linearly at the inflow port, then is divided into two branches at the communicating hole, and each branch flows in a semicircular path, and then the outflow port is combined into a single line and is sprayed toward the blade I. The arrangement of the mechanism can spray the cutting fluid to the blade I in a short distance without opening a pipeline for flowing the cutting fluid in the cutter bar body only by changing the structure of the spraying unit, and can transmit the cutting fluid from the inlet to the outlet even if a tightening bolt exists.

Further, as shown in fig. 5 and 6, a guide part is provided at the communication hole, and includes a cylinder part, a main groove, an auxiliary groove and a seal ring, the cylinder part is a hollow structure in a cylinder shape, the main groove is a groove on the outer circumferential surface of the cylinder part, and forms a guide channel for the flow of the cutting fluid together with the inner circumferential surface of the communication hole; the auxiliary groove is positioned at the upper end and/or the lower end of the main groove and is communicated with the main groove; the sealing ring is positioned between the periphery of the supporting lug boss and the communicating hole and is made of plastic or rubber which is easy to elastically deform.

When such an auxiliary groove is used, the support boss of the cylinder portion can be cantilevered. The cylinder and the seal ring can be formed as one unit without providing a separate seal ring as in the above-described embodiment.

The beneficial effects of the utility model reside in that:

(1) according to the utility model discloses the cutter arbor of the cutting fluid of can spouting sets up at the injection unit of cutter arbor body from taking inflow entrance and egress opening, and the inflow entrance inserts the cutting fluid supply pipeline. Therefore, a pipeline for the flowing of the cutting fluid is not required to be specially arranged on the cutter bar body, the cutting fluid can be sprayed to the blade in a short distance only by arranging the spraying unit, and the cutter bar does not need to be replaced.

(2) The spray unit may also be provided with a clamp for securing the blade to the tool holder. Thus, the existing clamp structure is changed, and the clamp can have the function of spraying the cutting fluid.

Drawings

FIG. 1 is a diagram illustrating the usage of the present invention;

FIG. 2 is a schematic structural diagram of the injection unit I of the present invention;

FIG. 3 is a cross-sectional view of the injection unit I of the present invention;

fig. 4 is a conceptual flow chart of the injection unit of the present invention;

fig. 5 is a cross-sectional view of the injection unit ii of the present invention;

fig. 6 is a sectional view of a guide member in the injection unit ii of the present invention.

In the figure, 100 cutter bar, 110 cutter bar body, 111 long rod, 112 fixing groove, 113 projecting part, 115 blade fixing part, 150 injection unit, 151 main block, 151a pressure projection, 151b fixing projection, 152 inflow port, 153 outflow port, 154 communicating hole, 155 screw bolt, 157 guide part, 158 cylinder part, 158a supporting projection 158a, 159a main groove, 159b auxiliary groove, 160 sealing ring, I blade.

The specific implementation mode is as follows:

hereinafter, the present invention will be described in detail with reference to the drawings showing the attachment. Even in the different embodiments, the same/similar reference numerals are used for the same/similar components, and the description is based on the first description.

Example 1:

as shown in fig. 1, a tool holder capable of spraying a cutting fluid, the tool holder 100 includes a holder body 110 and a spraying unit 150;

the cutter bar body 110 is a long strip-shaped component installed on cutting processing equipment, and comprises a long rod 111 and a protruding part 113, the protruding part 113 is positioned at one end of the cutter bar body 110, the rear side of the cutter bar body is provided with the long rod 111, a fixing groove 112 is arranged at the connecting part of the long rod and the long rod 111, and the front end of the protruding part 113 is protruded and is a blade fixing part 115 for installing a blade I;

the spraying unit 150 is connected with the cutter bar body 110 and sprays cutting fluid to the blade I; such a spray unit 150 may be a jig type in order to couple the insert i to the tool bar body 110; the injection unit 150 includes a main block 151 fixedly coupled with the protrusion 113 by tightening a bolt 155; a pressure bulge 151a is arranged below the main block 151 to press the blade I, and a fixing bulge 151b is arranged on the other side below the main block and is clamped with the fixing groove 112 to prevent the main block 151 from displacing relative to the cutter bar body 110; the main block 151 is provided with an outflow port 153 pointing to the blade I, and cutting fluid flowing out of the outflow port 153 points to the blade I;

as shown in fig. 2 and 3, the main block 151 further includes an inflow port 152, the inflow port 152 being located opposite to the outflow port 153, one end of the inflow port 152 being connected to a cutting fluid supply pipe for supplying a cutting fluid, and the other end thereof being communicated with the outflow port 153; a communication hole 154 is provided between the upper and lower ends of the main block 151, and a tightening bolt 155 is positioned in the communication hole 154; the communication hole 154 is further provided with a guide member 157, the guide member 157 is an annular sleeve surrounding the shank of the tightening bolt, is respectively communicated with the inflow port 152 and the outflow port 153, and is a guide channel for guiding the cutting fluid flowing into the inflow port 152 to the outflow port 153;

the guide member 157 includes a cylinder portion 158, a main groove 159a, an auxiliary groove 159b, and a seal ring 160, the cylinder portion 158 is a cylinder-shaped structure having a hole in the middle thereof, and a tightening bolt is inserted through the hole in the middle; the main groove 159a and the auxiliary groove 159b are concave circular grooves formed on the outer circumferential surface of the cylinder portion 158, the auxiliary groove 159b is formed at the upper end and/or the lower end of the main groove 159a, and the main groove 159b forms a channel through which the cutting fluid flows together with the inner circumferential surface of the communication hole 154; the seal ring 160 is sandwiched between the auxiliary grooves to prevent the cutting fluid passing through the main groove 159a from leaking to the outside of the communication hole 154.

As shown in fig. 4, in the injection unit i, the inflow port 152 is connected to the cutting fluid through the cutting fluid supply pipe, and is independent of the tool holder body 110; the cutting fluid flows to the outflow port 153 through the communication hole 154, and the cutting fluid sprayed from the outflow port 153 is directed to the blade i. At this time, the cutting fluid flows straight at the fluid inlet, then is divided into two branches at the communication hole 154, and each branch flows in a semicircular path, and then is merged at the fluid outlet 153 and sprayed toward the blade i. By providing such a mechanism, it is possible to spray the cutting fluid to the cutting blade i at a short distance without opening a pipe through which the cutting fluid flows in the holder body 110, by merely changing the structure of the spray unit 150, and to transfer the cutting fluid from the inlet 152 to the outlet 153 even if the bolt 155 is tightened.

Example 2:

as shown in fig. 5 and 6, the guide portion 157 'includes a cylinder portion 158', a main groove 159a ', an auxiliary groove 159b', and a sealing ring 160', the cylinder portion 158' has a hollow structure in a cylinder shape, and the main groove 159a 'is a groove formed in an outer circumferential surface of the cylinder portion 158' and forms a guide channel for flowing the cutting fluid together with an inner circumferential surface of the communication hole 154; the auxiliary groove 159b ' is positioned at an upper end and/or a lower end of the main groove 159a ', and communicates with the main groove 159a '; the packing is located between the outer circumference of the support boss 158a' and the communication hole, and is made of plastic or rubber that is easily elastically deformed.

When such an auxiliary groove 159b ' is employed, the support protrusion 158a ' of the cylinder portion 158' may make a cantilever motion. The cylinder 158' and the seal ring may be formed as one unit without the need for a separate seal ring as in the previous embodiment.

The tool holder capable of ejecting the cutting fluid described above is not limited to the configuration and operation of the above-described embodiments. The above embodiments may be selectively combined in whole or in part to realize various modifications.

Claims (3)

1. A cutter arbor that can spout cutting fluid which characterized in that: the cutter bar comprises a cutter bar body and a spraying unit;

the cutter bar body is a strip-shaped component arranged on cutting processing equipment and comprises a long rod and a protruding part, the protruding part is positioned at one end of the cutter bar body, the rear side of the cutter bar body is the long rod, a fixing groove is arranged at the connecting part of the long rod and the long rod, and the front end of the protruding part is protruded and is a blade fixing part for mounting a blade I;

the spraying unit is connected with the cutter bar body and comprises a main block which is fixedly connected with the protruding part through a tightening bolt; a pressure bulge is arranged below the main block, and a fixing bulge is arranged on the other side below the main block and is clamped with the fixing groove; the main block is provided with an outflow port pointing to the blade I; the main block also comprises an inflow port, the inflow port is positioned in the opposite direction of the outflow port, one end of the inflow port is connected with a cutting fluid supply pipeline for supplying cutting fluid, and the other end of the inflow port is communicated with the outflow port; a communicating hole is arranged between the upper end and the lower end of the main block, and the tightening bolt is positioned in the communicating hole; the communicating hole is also provided with a guide component which is an annular sleeve surrounding the handle part of the tightening bolt and is communicated with the inflow port and the outflow port respectively.

2. The tool holder of claim 1, wherein: the connecting hole is provided with a guide component which comprises a cylinder part, a main groove, an auxiliary groove and a sealing ring, the cylinder part is in a cylinder shape and has a hole in the middle, and a tightening bolt penetrates through the hole in the middle; the main groove and the auxiliary groove are concave circular grooves positioned on the outer peripheral surface of the cylinder part, the auxiliary groove is positioned at the upper end and/or the lower end of the main groove, and the main groove and the inner peripheral surface of the communicating hole form a channel for the circulation of cutting fluid; the sealing ring is clamped in the auxiliary groove.

3. The tool holder of claim 1, wherein: the guide part is arranged at the communication hole and comprises a cylinder part, a main groove, an auxiliary groove and a sealing ring, the cylinder part is of a hollow structure in a cylinder shape, the main groove is a groove on the outer peripheral surface of the cylinder part, and a guide channel for the flow of cutting fluid is formed together with the inner peripheral surface of the communication hole; the auxiliary groove is positioned at the upper end and/or the lower end of the main groove and is communicated with the main groove; the sealing ring is positioned between the periphery of the supporting lug boss and the communicating hole and is made of plastic or rubber which is easy to elastically deform.

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