CN216989910U

CN216989910U - Sleeve boring cutter

Info

Publication number: CN216989910U
Application number: CN202220896821.8U
Authority: CN
Inventors: 卜学军; 陈燕楠; 项敏杰
Original assignee: Hangzhou Chai Tools Co ltd
Current assignee: Hangzhou Chai Tools Co ltd
Priority date: 2022-04-18
Filing date: 2022-04-18
Publication date: 2022-07-19
Anticipated expiration: 2032-04-18

Abstract

The application relates to the technical field of cutting tools, in particular to a set of boring tool, which comprises a bridge and at least two tool bits, wherein a driving groove for connecting a tool handle is formed in the central axis of the bridge in a penetrating manner, the tool bits are arranged around the central axis of the bridge at equal intervals, the tool bits are arranged close to or far away from the central axis of the bridge in a sliding manner along the horizontal direction of the bridge, tool tips of the tool bits face the central axis of the bridge, and a plurality of positioning parts for fixing the tool bits are further arranged on the bridge; the cutter head is pushed to move close to or away from the central axis in the horizontal direction of the bridge, and each cutter head is sequentially operated, so that the distance between the cutter point of each cutter head and the central axis of the bridge is constant, the cutting diameter of each cutter head is changed under the condition that the boring cutter is not required to be detached, the time for adjusting the cutting diameter of each cutter head in the working process is reduced, and the working efficiency of workers is improved.

Description

Sleeve boring cutter

Technical Field

The application relates to the technical field of cutting tools, in particular to a sleeve boring tool.

Background

At present, the boring cutter mainly comprises a cutter body, a cutter handle and a cutter head, wherein the cutter head and the cutter handle are respectively fixedly arranged on two opposite side surfaces of the cutter body, the two cutter heads can be arranged on the cutter body and are fixed on the cutter body, the cutter body is utilized to drive the two cutter heads to rotate together through a rotating cutter handle, and the cutting work is carried out on a workpiece. However, the inventor finds that in order to ensure the stability of the cutter head, the boring cutter is provided with a clamping groove on the cutter body for fixing the cutter head, so that the diameters of the cutter points of the two cutter heads are fixed. Workpieces with different diameters need to be machined in the production process, the boring cutters with fixed cutter head positions need to be replaced frequently, and therefore workers can waste the replacement of the boring cutters in a long time in the working process, and working efficiency is affected.

SUMMERY OF THE UTILITY MODEL

In order to improve staff's work efficiency, this application provides a cover boring cutter.

The application provides a set boring cutter adopts following technical scheme: the utility model provides a cover boring cutter, includes crane span structure and two at least tool bits, crane span structure axis department runs through with the axle center and offers the drive groove that is used for connecting the handle of a knife, and is a plurality of the tool bit is arranged the setting around the axle of crane span structure is equidistant, the tool bit is close to/keeps away from the slip setting along the crane span structure horizontal direction to the crane span structure axle, the knife tip of tool bit all faces towards the axle of crane span structure, still be provided with a plurality of setting elements that are used for fixed tool bit on the crane span structure.

Through adopting the technical scheme, when the distance between the cutter point and the bridge central axis needs to be changed, a worker can push the cutter head to approach/keep away from the sliding along the bridge horizontal direction to the central axis, and sequentially operate each cutter head, so that the distance between the cutter point of each cutter head and the bridge central axis is consistent, and after the position of the cutter head is changed, the cutter head is fixed by adjusting the positioning piece, thereby realizing the change of the cutting diameter of the cutter head under the condition that the sleeve boring cutter does not need to be disassembled, further reducing the time for the worker to adjust the cutting diameter of the cutter head in the working process, and further improving the working efficiency of the worker.

In some embodiments, the bridge is provided with a plurality of sliding blocks, each sliding block corresponds to one cutter head, the cutter head is mounted on the corresponding sliding block, and the sliding block is provided with an abutting surface which abuts against the back side of the cutter head around the central axis of the bridge.

Through adopting above-mentioned technical scheme, when the tool bit during operation, the butt face can provide the tool bit holding power, and then strengthens the intensity of tool bit, reduces the tool bit because of the not enough cracked probability that leads to of rigidity in the course of the work.

In some embodiments, the bridge is provided with a plurality of sliding blocks, each sliding block corresponds to one cutter head, the cutter heads are arranged on the corresponding sliding blocks, and the centers of gravity of the plurality of sliding blocks are arranged at equal intervals around the central axis of the bridge.

Through adopting above-mentioned technical scheme, the focus that makes a plurality of sliders is with the equidistant setting of axis of crane span structure to make the crane span structure drive when the handle of a knife is rotatory, whole crane span structure is under a stable state, thereby can not make the uneven phenomenon of disconnected sword of appearing of atress in the tool bit cutting process because of crane span structure gravity biasing.

In some embodiments, a plurality of limiting grooves penetrating through the bridge are formed in the bridge, each limiting groove corresponds to a positioning element, each positioning element comprises a positioning shaft and a clamping nut, one end of the positioning shaft is fixedly connected to the sliding block, the other end of the positioning shaft penetrates through the limiting groove, and the clamping nut is in threaded connection with the positioning shaft and abuts against one side, back to the sliding block, of the bridge.

Through adopting above-mentioned technical scheme, when needs adjust the tool bit apart from crane span structure axis position, the staff unscrews and supports tight nut, then promotes the slider and drives the tool bit slip to drive the location axle and slide along the spacing groove, after confirming the distance, the staff rotates once more and supports tight nut, makes and supports tight nut butt in the lateral wall of crane span structure, and then realizes the location to the tool bit.

In some embodiments, the slider includes a sliding portion and a fixing portion, the sliding portion is slidably disposed on the bridge, the fixing portion is fixedly connected to a side wall of the sliding portion facing away from the bridge, the tool bit is disposed on the fixing portion, the fixing portion is provided with a top surface, the top surface is located on one side of the fixing portion facing away from the sliding portion, the tool tip of the tool bit protrudes out of the top surface, the top surface is inclined, and the position away from the tool tip of the tool bit is closer to the sliding portion.

Through adopting above-mentioned technical scheme, when the cover boring cutter cutting ladder sleeve pipe, the knife tip of tool bit can contact the ladder lateral wall when being close to the ladder, makes the knife tip when contacting the ladder lateral wall through the setting of top surface, and the top surface can not contact with the ladder lateral wall to can not appear the wearing and tearing to the work piece because of the contact of slider and work piece.

In some embodiments, a plurality of adjusting components are arranged on the bridge, each sliding block corresponds to one adjusting component, each adjusting component includes a limiting column and an adjusting screw, the limiting column is fixedly connected to the bridge, the adjusting screw is in threaded connection with the sliding block and abuts against the side wall of the limiting column after penetrating through the end of the sliding block, and the axis of the adjusting screw corresponding to the sliding block is parallel to the sliding direction of the sliding block.

Through adopting above-mentioned technical scheme, when the knife tip of tool bit to need the distance that changes when the crane span structure axis less, the staff is earlier in adjusting screw threaded connection in the slider, and make its tip pass the slider butt in the lateral wall of spacing post, then the staff will support tight nut and unscrew a bit, make the slider can remove, the staff rotates adjusting screw this moment, because adjusting screw's tip butt in spacing post lateral wall, thereby drive the slider and slide to the direction that is close to the crane span structure axis under adjusting screw's rotation, and then realize the fine setting to the knife tip of tool bit to crane span structure axis distance.

In some embodiments, the circumferential side wall of the bridge frame is inverted with an arc angle, and a center of the arc angle coincides with a central axis of the bridge frame.

Through adopting above-mentioned technical scheme, through will falling the arc angle of establishing to the tip of crane span structure to with the centre of a circle of arc angle and the axis coincidence of crane span structure, thereby make the crane span structure when rotatory with its axis, be discoid, and then be convenient for the crane span structure stability at the rotation in-process.

In some embodiments, the bridge is provided with a dovetail groove facing the slider, the slider is fixedly connected with a slide rail, and the slide rail is slidably disposed in the dovetail groove.

By adopting the technical scheme, when the sliding block slides along the bridge, the sliding rail can be driven to slide along the dovetail groove, the dovetail groove not only ensures the stability of the sliding block in the moving process, but also ensures that the sliding rail cannot be separated from the dovetail groove.

In summary, the present application has the following beneficial effects:

1. the cutter head is pushed to move close to or away from the central axis along the horizontal direction of the bridge frame and operates each cutter head in sequence, so that the distance between the cutter tip of each cutter head and the central axis of the bridge frame is constant, the cutting diameter of the cutter head is changed without disassembling the sleeve boring cutter, the time for adjusting the cutting diameter of the cutter head in the working process is reduced, and the working efficiency of workers is improved.

2. The end part of the adjusting screw is abutted against the side wall of the limiting column by rotating the adjusting screw, so that the sliding block is driven to slide towards the direction close to the central axis of the bridge frame under the rotation of the adjusting screw, and the fine adjustment of the distance from the tool nose of the tool bit to the central axis of the bridge frame is realized.

Drawings

Fig. 1 is a schematic overall structure diagram in the embodiment of the present application.

Fig. 2 is a bottom view of the overall structure in an embodiment of the present application.

In the figure, 100, the bridge; 110. a drive slot; 120. a limiting groove; 130. a dovetail groove; 140. positioning a groove; 200. a slider; 210. a fixed part; 211. a top surface; 212. a butting surface; 220. a sliding part; 221. a thread groove; 230. a slide rail; 240. positioning the shaft; 250. tightly abutting the nut; 300. a cutter head; 400. an adjustment assembly; 410. a limiting post; 420. and adjusting the screw.

Detailed Description

The present application is described in further detail below with reference to figures 1-2. The application discloses a sleeve boring cutter.

In the description of the present application, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and operate, and thus, should not be construed as limiting the present application.

Referring to fig. 1 and 2, a sleeve boring tool includes a bridge 100, at least two cutters, and a positioning member fixedly disposed on the bridge 100 corresponding to each cutter head 300. In the embodiment of the present application, two cutters are disposed on the same side of the bridge 100 symmetrically about the central axis of the bridge 100. The two cutters can slide in a direction approaching to/departing from the central axis of the bridge 100 along the horizontal direction, and the bridge 100 is provided with a positioning member for fixing the cutters. Wherein, the side of each cutter is also provided with an adjusting component 400 for fine adjustment of the cutter and the central axis of the bridge frame 100.

Referring to fig. 1 and 2, the bridge 100 is in a long strip shape, a driving groove 110 for connecting a tool handle is formed in a central axis of the bridge 100 in a penetrating manner, a positioning groove 140 with an outward opening is formed in a side of the bridge 100 facing away from the tool, and the positioning groove 140 is communicated with a side surface of the driving groove 110. Arc angles are reversely arranged at two ends of the bridge frame 100 in the length direction, and the circle centers of the arc angles at the two ends are overlapped with the central axis of the bridge frame 100.

Referring to fig. 1 and 2, two cutters are disposed at two ends of the bridge 100 in the length direction, each cutter includes a sliding block 200, a sliding rail 230, and a cutter head 300, and the centers of gravity of the two sliding blocks 200 are disposed at equal intervals around the central axis of the bridge 100. The bridge 100 is provided with a dovetail groove 130 with an opening facing the slider 200, and the slide rail 230 is fixedly connected to one end of the slider 200 and is slidably disposed in the dovetail groove 130 along the length direction of the bridge 100.

Referring to fig. 1 and 2, the slider 200 includes a sliding portion 220 and a fixing portion 210, the sliding rail 230 is fixedly connected to a bottom surface of the sliding portion 220, and the fixing portion 210 is fixedly connected to a side of the sliding portion 220 opposite to the sliding rail 230. The fixing portions 210 of the two sliders 200 are provided with abutting surfaces 212, and the abutting surfaces 212 are disposed on the sidewalls of the fixing portions 210 facing away from the rotation direction when the fixing portions 210 surround the central axis of the bridge 100. The side of the fixing portion 210 facing away from the sliding portion 220 is provided with a top surface 211, the top surface 211 is inclined, and the height of the top surface 211 gradually decreases from the edge close to the central axis of the bridge 100. The cutting tip 300 is fixedly disposed on the abutting surface 212, and a cutting tip of the cutting tip 300 protrudes from a highest edge of the top surface 211, and the cutting tip faces a central axis of the bridge 100.

Referring to fig. 1 and 2, the bridge 100 is provided with a plurality of limiting grooves 120 penetrating through the bridge 100, each sliding block 200 corresponds to two limiting grooves 120, and each limiting groove 120 corresponds to one positioning element. The positioning element includes a positioning shaft 240 and a fastening nut 250, and the positioning shaft 240 axially passes through the limiting groove 120 in parallel with the central axis of the bridge 100. One end of the positioning shaft 240 is fixedly connected to the sliding portion 220, and the other end of the positioning shaft 240 is threadedly connected to the fastening nut 250. When the position of the slider 200 needs to be fixed, the tightening nut 250 abuts against the side wall of the bridge 100 facing away from the slider 200.

Referring to fig. 1 and 2, the adjusting assembly 400 is provided in two in the present embodiment, and two adjusting assemblies 400 correspond to two sliders 200. The sliding part 220 is opened with a thread groove 221, the thread groove 221 is horizontally arranged, and the horizontal axes of the thread groove 221 pass through the central axis of the bridge 100 and are perpendicular to each other. The adjusting assembly 400 includes a limiting post 410 and an adjusting screw 420, wherein the limiting post 410 is fixedly connected to the bottom surface of the dovetail 130 close to the central axis of the bridge 100. The adjusting screw 420 is abutted against the sidewall of the limiting column 410 by the threaded groove 221, and the adjusting screw 420 is threaded to the sliding part 220.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A sleeve boring cutter is characterized in that: including crane span structure (100) and two at least tool bits (300), crane span structure (100) axis department runs through with the axle center and offers driving groove (110) that are used for connecting the handle of a knife, and is a plurality of tool bit (300) arrange the setting around the axle of crane span structure (100) at an equal interval, tool bit (300) are close to/keep away from the slip setting to crane span structure (100) axle along crane span structure (100) horizontal direction, the tool tip of tool bit (300) all faces towards the axle of crane span structure (100), still be provided with a plurality of setting elements that are used for fixed tool bit (300) on crane span structure (100).

2. The sleeve boring tool according to claim 1, wherein: the bridge (100) is provided with a plurality of sliding blocks (200), each sliding block (200) corresponds to one cutter head (300), the cutter heads (300) are installed on the corresponding sliding blocks (200), abutting surfaces (212) are arranged on the sliding blocks (200), and the abutting surfaces (212) abut against the back sides of the central axes of the cutter heads (300) around the bridge (100).

3. The sleeve boring tool according to claim 1, wherein: the crane span structure (100) is provided with a plurality of sliders (200), and each slider (200) corresponds a tool bit (300), tool bit (300) are installed on the slider (200) that corresponds, and is a plurality of the focus of slider (200) is around the equidistant setting of the axis of crane span structure (100).

4. The sleeve boring tool as set forth in claim 2 or 3, wherein: the cable bridge is characterized in that a plurality of limiting grooves (120) penetrating through the cable bridge (100) are formed in the cable bridge (100), each limiting groove (120) corresponds to one positioning piece, each positioning piece comprises a positioning shaft (240) and a clamping nut (250), one end of each positioning shaft (240) is fixedly connected to the corresponding sliding block (200), the other end of each positioning shaft (240) penetrates through the corresponding limiting groove (120), and the clamping nut (250) is in threaded connection with the corresponding positioning shaft (240) and abuts against one side, back to the corresponding sliding block (200), of the cable bridge (100).

5. The sleeve boring tool according to claim 4, wherein: slider (200) are including sliding part (220) and fixed part (210), sliding part (220) slide and set up in crane span structure (100), fixed part (210) fixed connection is in one side of sliding part (220) crane span structure (100) dorsad, tool bit (300) set up in fixed part (210), fixed part (210) are equipped with top surface (211), top surface (211) are located a lateral wall of fixed part (210) dorsad sliding part (220), the knife tip protrusion of tool bit (300) is in top surface (211), top surface (211) slope sets up, and keeps away from more in the position of tool bit (300) knife tip near more in sliding part (220).

6. The sleeve boring tool according to claim 4, wherein: the adjustable sliding block is characterized in that a plurality of adjusting components (400) are arranged on the bridge (100), each sliding block (200) corresponds to one adjusting component (400), each adjusting component (400) comprises a limiting column (410) and an adjusting screw (420), the limiting columns (410) are fixedly connected to the bridge (100), the adjusting screws (420) are in threaded connection with the sliding blocks (200) and abut against the side walls of the limiting columns (410) through the end portions of the sliding blocks (200), and the axis of the adjusting screw (420) corresponding to the sliding blocks (200) is parallel to the sliding direction of the sliding blocks (200).

7. The sleeve boring cutter as claimed in claim 1, wherein: the circumference lateral wall of crane span structure (100) is fallen and is equipped with the arc angle, the centre of a circle of arc angle and the axis coincidence of crane span structure (100).

8. The sleeve boring tool according to claim 4, wherein: the dovetail groove (130) towards the sliding block (200) is formed in the bridge (100), the sliding block (200) is fixedly connected with a sliding rail (230), and the sliding rail (230) is arranged in the dovetail groove (130) in a sliding mode.