CN213317742U

CN213317742U - Adjustable boring cutter

Info

Publication number: CN213317742U
Application number: CN202021282231.3U
Authority: CN
Inventors: 范宇飞
Original assignee: Hunan Loudi Yate Hydraulic Machinery Co ltd
Current assignee: Hunan Loudi Yate Hydraulic Machinery Co ltd
Priority date: 2020-07-04
Filing date: 2020-07-04
Publication date: 2021-06-01
Anticipated expiration: 2030-07-04

Abstract

The utility model discloses an adjustable boring cutter belongs to the machining cutter, and this adjustable boring cutter includes cutter body, adjustable blade and floating support board etc. and blade in this scheme can stretch out or shrink by ration, is used for processing the deep hole of different shapes, accurately accomplishes the blade under the condition of not moving back the sword and adjusts to utilize a plurality of floating support boards to support the tool bit, be used for reducing the blade vibration, this boring cutter novel structure, blade stretch out volume are adjusted conveniently, the specially adapted processes the special-shaped curved surface deep hole of different shapes.

Description

Adjustable boring cutter

Technical Field

The utility model belongs to the machining cutter, concretely relates to adjustable boring cutter.

Background

The boring cutter is one of hole machining cutters, is generally a round handle, and is also commonly used in a vertical lathe for a square cutter rod of a larger workpiece, wherein the most common occasions are inner hole machining, hole expanding, profiling and the like. Tools with one or two cutting parts, specially adapted for roughing, semi-finishing or finishing existing holes. The boring tool may be used on a boring machine, a lathe or a milling machine. In the machining process in China, the cutting depth of a boring cutter is adjusted fussy and inaccurate, and partial equipment needs to be subjected to tool withdrawal and feeding operations in each adjustment, so that the machining precision and the machining efficiency are seriously influenced. Meanwhile, the machining tool lacks a necessary guide and vibration-proof structure, and when a deep hole is machined, machining errors are inevitably caused by vibration of the tool.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an adjustable boring cutter, including cutter body, adjustable blade and floating support board etc. the blade in this scheme can the ration stretch out or shrink, be used for processing the deep hole of different shapes, accurately accomplishes the blade under the condition of not moving back the sword and adjusts to utilize a plurality of floating support boards to support the tool bit, be used for reducing the blade vibration, this boring cutter novel structure, blade stretch out the volume and adjust conveniently, the specially adapted processes the special-shaped curved surface deep hole of different shapes.

In order to realize the utility model discloses a purpose, the utility model discloses a following technical scheme:

the utility model provides an adjustable boring cutter includes cutter body, tool bit, hilt, blade, adjusting screw and connecting plate, wherein: the cutter head and the cutter handle are respectively arranged at two ends of the cutter body and are coaxially arranged, a middle hole is transversely formed in the cutter head, a cutter groove is longitudinally formed in the cutter head, and the cutter handle is used for installing and fixing a cutter; the blades are movably arranged in the cutter grooves of the cutter head and are elastically connected through a connecting plate, the bottom of each blade is an adjusting inclined plane, and the top of each blade is a cutter surface; the adjusting screw is installed in the middle hole through a special thread, an adjusting round angle is arranged at one end, close to the blade, of the adjusting screw, the adjusting round angle is matched with the adjusting inclined plane to work, and the adjusting inclined plane is moved up and down through moving the adjusting round angle.

Preferably, the connecting plate is provided with a sliding groove, the connecting shaft of the blade is movably arranged in the sliding groove, the top of the connecting shaft is provided with a limiting nut, and a return spring is arranged between the corresponding connecting shafts.

Preferably, a plurality of mounting grooves have been seted up to the side symmetry of cutter body, install the backup pad that floats in the mounting groove, wherein: the floating support plate is provided with a connecting hole, one end of a connecting screw is installed in the connecting hole, the other end of the connecting screw is installed in a screw hole at the bottom of the mounting groove, and a floating spring used for supporting the floating support plate is sleeved in the middle of the connecting screw.

Preferably, one rotation of the special thread can drive the adjusting screw to move forwards by 0.5-0.9 mm.

Preferably, the working angle of the adjusting inclined plane and the adjusting fillet is 30-80 °.

The utility model discloses an adjustable boring cutter has following beneficial effect:

1) the utility model discloses a blade can be accurate stretch out or shrink, can realize the quantitative adjustment of blade through control adjusting screw, and this structure can realize eating the volume and adjust under the condition of not moving back the sword, adds man-hour to the through-hole, only needs utilize the rotatory adjusting screw of screwdriver to accomplish the regulation of the height of blade at the other end of work piece, is particularly suitable for processing opposite sex hole.

2) The utility model discloses a be provided with a plurality of floating support boards on the cutter body, this floating support board can play direction and absorbing function, because the inside spring that is provided with of floating support board can laminate different apertures to support the tool bit, reduce the tool bit vibration, show promotion processingquality and machining efficiency.

Drawings

Fig. 1 is a schematic external structural view of the present invention;

FIG. 2 is a schematic view of the structure of the tool bit of the present invention;

FIG. 3 is a schematic view of the adjusting screw structure of the present invention;

FIG. 4 is a schematic view of the blade structure of the present invention;

FIG. 5 is a schematic view of the connecting plate structure of the present invention;

FIG. 6 is a schematic view of the connection plate of the present invention;

fig. 7 is a schematic view of the floating support plate structure of the present invention.

In the figure, 1-cutter body, 101-installation groove, 2-cutter head, 201-middle hole, 202-cutter groove, 3-cutter handle, 4-cutter blade, 401-adjustment inclined plane, 402-cutter surface, 403-connecting shaft, 5-adjustment screw, 501-special thread, 502-adjustment round angle, 6-connecting plate, 601-sliding groove, 602-limit nut, 603-reset spring, 7-floating support plate, 701-connecting hole, 702-connecting screw and 703-floating spring.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and 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, are not to be construed as limiting the present invention. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1, the adjustable boring cutter comprises a cutter body 1, a cutter head 2, a cutter handle 3, a cutter blade 4, an adjusting screw 5 and a connecting plate 6, wherein the cutter head 2 and the cutter handle 3 are respectively arranged at two ends of the cutter body 1 and are coaxially arranged, the cutter head 2 is used for mounting the cutter blade 4 and the adjusting screw 5, the cutter handle 3 is used for mounting and fixing the cutter, the outer surface of the cutter handle 3 is tapped and is used for mounting on a chuck, and the height of the cutter blade 4 can be adjusted by rotating the adjusting screw 5 in the figure.

As shown in fig. 2 and 3, a middle hole 201 is transversely formed in the tool bit 2, a tool slot 202 is longitudinally formed in the tool bit 2, a center line of the middle hole 201 is perpendicular to a center line of the tool slot 202, an adjusting screw 5 is tapped in the middle hole 201, and the tool slot 202 penetrates up and down to place two blades 4.

As shown in fig. 4 and 5, the blades 4 are movably installed in the cutter grooves 202 of the cutter head 2, the blades 4 are elastically connected through the connecting plate 6, the bottom of the blade 4 is an adjustment inclined surface 401, the top of the blade 4 is a blade surface 402, in this embodiment, 2 blades 4 are symmetrically arranged, and the 2 blades 4 can be directionally moved and reset along the connecting plate 6 under the action of the connecting plate 6.

It should be noted that the adjusting screw 5 is installed in the central hole 201 through the special thread 501, one end of the adjusting screw 5 close to the blade 4 is provided with an adjusting fillet 502, the adjusting fillet 502 cooperates with the adjusting inclined plane 401 to work, and the adjusting inclined plane 401 moves up and down by moving the adjusting fillet 502, specifically, the special thread 501 rotates once to drive the adjusting screw 5 to move forward by 0.5-0.9mm, the working angle of the adjusting inclined plane 401 and the adjusting fillet 502 is 30-80 degrees, and 30 degrees, 45 degrees, 60 degrees and the like can be selected.

Referring to fig. 4, 5 and 6, the connecting plate 6 is provided with a sliding groove 601, the connecting shaft 403 of the blade 4 is movably mounted inside the sliding groove 601, the top of the connecting shaft 403 is provided with a limit nut 602, and a return spring 603 is mounted between the corresponding connecting shafts 403, so that the blade 4 is ensured to move directionally due to the limit action of the sliding groove 601 and the connecting shafts 403, and meanwhile, the return spring 603 is arranged between the corresponding connecting shafts 403, two ends of the return spring 603 are directly sleeved on the connecting shafts 403, and after the two blades 4 are separated, the two blades can automatically retract and reset.

As shown in fig. 7, a plurality of mounting grooves 101 have been seted up to the side symmetry of cutter body 1, install the floating support plate 7 in the mounting groove 101, wherein: the floating support plate 7 is provided with a connecting hole 701, one end of a connecting screw 702 is installed in the connecting hole 701, the other end of the connecting screw 702 is installed in a screw hole at the bottom of the installation groove 101, and a floating spring 703 for supporting the floating support plate 7 is sleeved in the middle of the connecting screw 702. The connecting screw 702 is only end-tapped and has a smooth cylindrical middle portion.

In actual machining, the two blades 4 are first mounted together through the connecting plate 6 to form a blade group, and then the blade group is placed in the cutter groove 202. At this time, the adjusting screw 5 is mounted in the central hole 201, and the vertical movement of the blade set is restricted by the matching relationship between the adjusting round 502 and the adjusting inclined surface 401. Then, the floating support plate 7 is assembled with the existing hole size, the workpiece starts to rotate, the cutter enters the hole of the workpiece, the adjustment round angle 502 is adjusted to move forwards or backwards by controlling the number of rotation turns of the adjustment screw 5, the adjustment inclined plane 401 is driven to move up and down by the force of the inclined plane contact, and the adjustment screw 5 is calculated to rotate for several turns according to the machining size. The processing mode is generally pull pin processing, and the processing parameters are as follows: the rotating speed is 80-100r/min, the feeding speed is 0.05-0.1mm/r, and cooling liquid is injected, wherein the type of the cooling liquid is water emulsion.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides an adjustable boring cutter, its characterized in that includes cutter body (1), tool bit (2), hilt (3), blade (4), adjusting screw (5) and connecting plate (6), wherein:

the cutter head (2) and the cutter handle (3) are respectively arranged at two ends of the cutter body (1) and are coaxially arranged, a middle hole (201) is transversely formed in the cutter head (2), a cutter groove (202) is longitudinally formed in the cutter head (2), and the cutter handle (3) is used for installing and fixing a cutter;

the blades (4) are movably arranged in the cutter grooves (202) of the cutter head (2), the blades (4) are elastically connected through a connecting plate (6), the bottom of each blade (4) is an adjusting inclined plane (401), and the top of each blade (4) is a cutter surface (402);

the adjusting screw (5) is installed in the middle hole (201) through a special thread (501), an adjusting round angle (502) is arranged at one end, close to the blade (4), of the adjusting screw (5), the adjusting round angle (502) and the adjusting inclined plane (401) work in a matched mode, and the adjusting inclined plane (401) can move up and down through moving the adjusting round angle (502).

2. The adjustable boring cutter as claimed in claim 1, wherein the connecting plate (6) is provided with a sliding groove (601), the connecting shaft (403) of the blade (4) is movably mounted inside the sliding groove (601), the top of the connecting shaft (403) is provided with a limit nut (602), and a return spring (603) is mounted between the corresponding connecting shafts (403).

3. The adjustable boring cutter as claimed in claim 1, wherein the cutter body (1) is symmetrically provided with a plurality of mounting grooves (101) on the side surface, and a floating support plate (7) is mounted in the mounting grooves (101), wherein:

the floating support plate is characterized in that a connecting hole (701) is formed in the floating support plate (7), one end of a connecting screw (702) is installed in the connecting hole (701), the other end of the connecting screw (702) is installed in a screw hole in the bottom of the installation groove (101), and a floating spring (703) used for supporting the floating support plate (7) is sleeved in the middle of the connecting screw (702).

4. The adjustable boring tool as claimed in claim 1, characterized in that the special thread (501) is capable of driving the adjusting screw (5) to move forward 0.5-0.9mm when rotating one circle.

5. The adjustable boring tool according to claim 1, characterized in that the working angle of the adjustment bevel (401) and the adjustment fillet (502) is 30 ° to 80 °.