CN112247685A

CN112247685A - Micro-feeding tool rest and tool polishing device

Info

Publication number: CN112247685A
Application number: CN202010975439.1A
Authority: CN
Inventors: 陈俊云; 靳田野; 陈杏东
Original assignee: Yanshan University
Current assignee: Yanshan University
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2021-01-22

Abstract

The invention provides a micro-feeding tool rest and a tool polishing device, which comprise a shell, wherein the shell is provided with a first mounting groove, and a long shaft of the first mounting groove extends along a first direction; the micro-feeding assembly is arranged in the first mounting groove and extends along the first direction; the elastic component is connected to the lower end of the shell in the first direction and provided with a first end and a second end which are opposite, a second mounting groove for mounting a cutter is formed between the first end and the second end, and the first end can abut against the micro-feeding assembly and is arranged at an interval with the shell. The micro-feeding tool rest can realize micro-precise feeding of the tool.

Description

Micro-feeding tool rest and tool polishing device

Technical Field

The invention belongs to the field of polishing, and particularly relates to a micro-feeding tool rest and a tool polishing device.

Background

The ultra-precision machining technology is more and more important in the field of mechanical machining, so that the diamond cutter with a sharp cutting edge and high sharpening precision can be selected to effectively control the surface quality of a workpiece, and the most important support for ensuring the quality of the cutting edge of the cutter is the diamond cutter grinding equipment.

The conventional auxiliary polishing device is not provided with a cutter back angle adjusting device, polishing of a cutter with a specific back angle cannot be realized in the polishing process, the vertical position precision of the axis of a cutter swing shaft and the axis of a polishing disc main shaft cannot be guaranteed, and the shape precision of a back cutter face cannot be guaranteed during polishing, so that the precision of the circular arc blade shape of a cutter tip is poor. Meanwhile, the feeding of the cutter along the axial direction belongs to micro displacement, and the conventional mechanical displacement technologies such as a ball screw, a rolling guide rail, a sliding guide rail and the like are difficult to meet higher requirements on the motion sensitivity and the positioning accuracy relative to micron-level displacement, and have the defects of large inertia, complex mechanism, poor stability and the like. These factors all result in poor accuracy of the circular arc shape of the nose. This would bring great difficulty to precision and ultra-precision machining.

Disclosure of Invention

In order to overcome the problems in the related art, the invention provides a micro-feeding tool rest and a tool polishing device.

According to an embodiment of the present invention, there is provided a micro-feed tool holder including: the device comprises a shell, a first fixing device and a second fixing device, wherein the shell is provided with a first mounting groove with a long shaft extending along a first direction; the micro-feeding assembly is arranged in the first mounting groove and extends along the first direction; the elastic component is connected to the lower end of the shell in the first direction and provided with a first end and a second end which are opposite, a second mounting groove for mounting a cutter is formed between the first end and the second end, and the first end can abut against the micro-feeding assembly and is arranged at an interval with the shell.

According to an aspect of an embodiment of the present invention, a first through hole extending in the first direction and communicating with the first mounting groove is formed at a top end of the housing, and a positioning assembly is mounted on the first through hole and adjusts and fixes the micro feeding assembly.

According to an aspect of the embodiment of the present invention, a second through hole penetrating the elastic member in the thickness direction of the housing is provided between the first end and the second end, and the second through hole is symmetrically disposed with a long axis of the first mounting groove extending in the first direction as a symmetry axis.

According to one aspect of an embodiment of the present invention, the first end has an upper surface and a lower surface, the upper surface and the lower surface having a recess extending inwardly of the first end.

According to an aspect of the embodiment of the invention, the second end has the same concave arrangement as the first end.

According to an aspect of an embodiment of the present invention, the recess and the second through hole may increase an elastic modulus of the elastic member and reduce a self weight.

According to an aspect of an embodiment of the present invention, the housing, the micro-feed assembly, and the elastic member have the same axial center extending in the first direction and are symmetrical along the axial center.

According to an aspect of an embodiment of the present invention, the tool micro-feeding mechanism is a piezoelectric ceramic actuator, and the elastic member is an alloy flexible hinge.

According to another aspect of an embodiment of the present invention, there is provided a tool polishing apparatus including a micro-feed tool post, the tool polishing apparatus further including: a base having a bolt hole; the cutter reciprocating swing device is fixed through the bolt hole and arranged on the right side of the upper part of the base; the right side direction of the tool reciprocating swing device is also provided with a cantilever, and the cantilever is provided with a back angle regulator; and the tool rest clamping assembly is used for fixing and adjusting the micro-feeding polishing disc through the rear angle regulator.

According to an aspect of the disclosed embodiment of the invention, the tool reciprocating swing device is a work rotating table driven by a stepping motor.

The flexible hinge and the piezoelectric ceramic actuator realize the axial accurate feeding of the cutter, and can simultaneously realize the multi-axial micro accurate adjustment feeding of the cutter by combining the cutter reciprocating swing device and the cutter rear angle adjusting device.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic cross-sectional view of a micro-feeding tool holder according to an exemplary embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of yet another micro-feeding tool holder, according to an exemplary embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of a tool polishing apparatus according to an exemplary embodiment of the present invention.

Description of reference numerals:

1-a shell; 2-a first mounting groove; 3-a micro-feeding assembly;

4-an elastic member; 42-hollowing out; 43-dishing;

5-a second mounting groove; 51-a fixation hole;

6-cutting tools;

7-fixing holes; 71-a stationary component; 72-fixed hole bolt;

8-relief angle adjustment means; 81-pin shaft; 82-a fixing bolt; 83-angle adjustment holes; 84-a clamping groove; 85-clamping holes; 86-a grinding disc;

9-a reciprocating oscillating device; 92-screw.

Detailed Description

In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of various exemplary embodiments or implementations of the present invention. As used herein, "examples" and "embodiments" are interchangeable words, which are non-limiting examples of devices or methods that employ one or more of the inventive concepts herein. It may be evident, however, that the various exemplary embodiments may be practiced without these specific details or with one or more equivalent arrangements. In other instances, well-known structures and devices are shown in block diagram form in order to avoid unnecessarily obscuring the various exemplary embodiments. Moreover, the various exemplary embodiments may be different, but are not necessarily exclusive. For example, the particular shapes, configurations and characteristics of the exemplary embodiments may be used or practiced in another exemplary embodiment without departing from the inventive concept.

The use of cross-hatching and/or shading in the figures is generally provided to clarify the boundaries between adjacent elements. As such, unless otherwise specified, the presence or absence of cross-hatching or shading does not convey or indicate any preference or requirement for a particular material, material property, size, proportion, commonality between the illustrated elements, and/or any other characteristic, attribute, property, etc. of the elements. Further, in the drawings, the size and relative sizes of elements may be exaggerated for clarity and/or descriptive purposes. While example embodiments may be implemented differently, the particular process sequence may be performed differently than described. For example, two processes described in succession may be executed substantially concurrently or in the reverse order to that described. In addition, like reference numerals denote like elements.

When an element such as a layer is referred to as being "on," "connected to" or "coupled to" another element or layer, it can be directly on, connected or coupled to the other element or layer or intervening elements or layers may be present. However, when an element or layer is referred to as being "directly on," "directly connected to" or "directly coupled to" another element or layer, there are no intervening elements or layers present. To this end, the term "connected" may refer to physical, electrical, and/or fluid connections, with or without intervening elements. Further, the D1 axis, the D2 axis, and the D3 axis are not limited to three axes of a rectangular coordinate system, such as an x-axis, a y-axis, and a z-axis, and may be explained in a broader sense. For example, the D1, D2, and D3 axes may be perpendicular to each other, or may represent different directions that are not perpendicular to each other. For the purposes of the present invention, "at least one of X, Y and Z" and "at least one selected from the group consisting of X, Y and Z" can be construed as X only, Y only, Z only, or any combination of two or more of X, Y and Z, such as XYZ, XYY, YZ, and ZZ, for example. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Although the terms first, second, etc. may be used herein to describe various types of elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. Thus, a first element discussed below could be termed a second element without departing from the teachings of the present invention.

Spatially relative terms such as "below … …," "below … …," "below … …," "below," "above … …," "above," "… …," "higher," "side" (e.g., as in "side wall") and the like may be used herein for descriptive purposes to describe one element's relationship to another element as illustrated in the figures. Spatially relative terms are intended to cover different orientations of the device in use, operation, and/or manufacture in addition to the orientation depicted in the figures. For example, if the device is turned over in the drawings, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below … …" can encompass both an orientation of "above … …" and "below … …". Further, the devices may be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Furthermore, the terms "comprises," "comprising," "includes," "including," "has," "having" and/or "including," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, components, and/or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It is also noted that, as used herein, the terms "substantially," "about," and other similar terms are used as approximate terms and not as terms of degree, and as such, are used to explain the inherent deviations in measured, calculated, and/or set values that would be recognized by one of ordinary skill in the art.

Various exemplary embodiments are described herein with reference to cross-sectional and/or exploded views as illustrations of idealized exemplary embodiments and/or intermediate structures. In this way, variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, are to be expected. Thus, example embodiments of the invention herein should not necessarily be construed as limited to the particular illustrated shapes of regions but are to include deviations in shapes that result, for example, from manufacturing. In this manner, the regions illustrated in the figures may be schematic in nature and the shapes of the regions may not reflect the actual shape of a region of a device and, thus, are not necessarily intended to be limiting.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Unless explicitly defined as such herein, terms such as those defined in commonly used dictionaries should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.

Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic view of a micro-feeding tool post according to an exemplary embodiment of the present invention.

As shown in fig. 1, the micro feed blade holder includes: the device comprises a shell 1, wherein a first mounting groove 2 is formed in the shell 1 along a first direction; a micro-feeding assembly 3 extending in the first direction and disposed on an inner surface of the first mounting groove 2; and the elastic component 4 is arranged at the lower end of the shell 1 along the first direction, a second mounting groove 5 for mounting a cutter is arranged in the first direction, the elastic component 4 is provided with an upper surface and a lower surface which are opposite, and the upper surface of the elastic component 4 can abut against the micro-feeding assembly 3.

Further, the micro-feeding tool rest also comprises a tool 6 clamped by the second mounting groove 5 and a fixing hole 7 for fixing the micro-feeding assembly 3;

wherein, the fixing assembly 71 and the fixing bolt 72 adjust and support the position of the micro-feeding assembly 3 through the fixing hole.

Specifically, a hollow layout is arranged between the upper surface of the elastic component 4 and the lower surface of the housing 1, so that the main body of the elastic component 4 has a certain elastic modulus. Therefore, when the micro-feeding unit 3 is fed downward, the elastic member 4 is actuated, and the elastic member 4 causes the cutter 6 to be precisely displaced.

Further, the upper surface of the elastic member 4 is provided with 4 downward depressions 43. Two hollows 42 symmetrical around the first direction are further arranged inside the elastic component 4, and recesses corresponding to the recesses 43 are further arranged at four corners of each hollow 42, so that the elastic deformation limit of the elastic component 4 is further increased.

The present invention is not limited thereto and fig. 2 is a cross-sectional view schematically illustrating yet another micro-feeding tool holder according to an exemplary embodiment of the present invention.

As shown in fig. 2, the tool-mount channel 5 is provided with a tool-fixing hole 51 for fixing the tool 6. The cutter fixing hole 51 is provided inside the elastic member 4, and therefore, the cutter fixing hole 51 can provide a good fixing effect to the cutter 6 while being displaced with the elastic member 4.

The present invention is not limited thereto and fig. 3 is a schematic sectional view illustrating a tool polishing apparatus according to an exemplary embodiment of the present invention.

As shown in fig. 3, the tool polishing apparatus includes an L-shaped base, on the top of which a tool reciprocating swing device 9, a tool rear angle adjusting device 8, and a grinding disc 86 are relatively and sequentially installed.

Further, the tool relief angle adjusting means 8 includes an angle adjusting hole 83 and an angle fixing bolt 82. The cutter back angle adjusting device 8 is connected with the cutter reciprocating swing device 9 through a pin shaft 81 and can rotate a certain rotating angle around the pin shaft 81, the rotating angle can be displayed through a reading device, the cutter back angle adjusting device 8 is provided with at least two angle adjusting holes 83, and the angle adjusting holes 83 and the angle fixing bolts 82 can rotate and lock around the pin shaft 81. The right side of the cutter back angle adjusting device 8 is provided with a micro-feeding cutter rest clamping groove 84 and a micro-feeding cutter rest clamping hole 85.

The present invention is not so limited and includes a tool polishing method.

As shown in fig. 1 to 3, the cutter 6 is first mounted on the second mounting groove 5 to be clamped.

Further, the position of supporting the micro feed unit 3 is adjusted by fixing holes of the fixing unit 71 and the fixing bolt 72.

Further, the micro-feeding tool rest is mounted on the tool rest clamping groove 84, and the tool 6 is positioned by adjusting the micro-feeding tool rest, so that the arc center of the tool tip of the tool 6 and the axis of the screw 92 are adjusted to be on the same horizontal line.

Further, the tool relief angle adjusting device 8 is adjusted to adjust the relief angle of the tool 6 and the abrasive disk 86.

Further, the grinding disc 86 starts to rotate, the tool reciprocating swing device 9 starts to swing in a reciprocating mode, the tool reciprocating swing device 9 drives the tool rear angle adjusting device 8 to swing, the tool rear angle adjusting device 8 drives the shell 1 to swing in a reciprocating mode, and meanwhile the micro-feeding device 3 starts to feed and drives the diamond tool 3 to swing and start polishing.

Further, in the present embodiment, as an example, the tool 6 is a diamond tool; the cutter micro-feeding mechanism 3 is a piezoelectric ceramic driver; the elastic part 4 is an alloy flexible hinge; the tool reciprocating swing device 9 is a work rotating table driven by a stepping motor.

It should also be noted that the exemplary embodiments mentioned in this patent describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in an order different from the order in the embodiments, or may be performed simultaneously.

As described above, only the specific embodiments of the present invention are provided, and it can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system, the module and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered within the scope of the present invention.

Claims

1. A micro-feeding tool holder, comprising:

the device comprises a shell, a first fixing device and a second fixing device, wherein the shell is provided with a first mounting groove with a long shaft extending along a first direction;

the micro-feeding assembly is arranged in the first mounting groove and extends along the first direction;

the elastic component is connected to the lower end of the shell in the first direction and provided with a first end and a second end which are opposite, a second mounting groove for mounting a cutter is formed between the first end and the second end, and the first end can abut against the micro-feeding assembly and is arranged at an interval with the shell.

2. The tool holder of claim 1, wherein the housing has a first through hole extending in the first direction and communicating with the first mounting groove, and a positioning member is mounted in the first through hole and is adapted to fix the micro feeding member.

3. The micro feeding blade holder according to claim 1, wherein a second through hole penetrating the elastic member in the thickness direction of the housing is provided between the first end and the second end, and the second through hole is provided symmetrically with respect to a long axis of the first mounting groove extending in the first direction.

4. The micro feed blade holder of claim 1, wherein the first end has an upper surface and a lower surface, the upper surface and the lower surface having a recess extending inwardly of the first end.

5. The micro feed blade holder of claim 1, wherein the second end has the same concave arrangement as the first end.

6. The micro feeding blade holder according to claim 1, wherein the recess and the second through hole increase the elastic modulus of the elastic member and reduce the self weight.

7. The micro feed tool holder of claim 1, wherein the housing, the micro feed assembly, and the resilient member have the same axial center extending in the first direction and are symmetrical along the axial center.

8. The micro-feed tool post of claim 1, wherein the tool micro-feed mechanism is a piezo-ceramic actuator and the resilient member is an alloy flexible hinge.

9. A tool polishing apparatus comprising the micro-feed tool post of any one of claims 1 to 8, the tool polishing apparatus further comprising:

a base having a bolt hole;

the cutter reciprocating swing device is fixed through the bolt hole and is arranged on the right side of the upper part of the base;

the right side direction of the tool reciprocating swing device is provided with a cantilever which is provided with a back angle regulator;

the cutter rest clamping assembly is used for fixing and adjusting the angle of the micro-feeding cutter rest through the rear angle regulator;

and (7) polishing the disc.

10. The tool burnishing apparatus of claim 9, wherein the tool reciprocating oscillating device is a stepper motor driven rotary table.