Detachable lengthened combined tool rest boring device

Abstract

The utility model relates to the technical field of machining, in particular to a detachable lengthened combined tool rest boring device which comprises a lengthened tool bar, a lengthened tool rest, a turning tool bar and a blade, the two ends of the lengthened tool bar are rotationally connected with a rotating shaft seat, the lengthened tool rest is detachably arranged on the lengthened tool bar, and a mounting groove is formed in the end of the lengthened tool rest. One end of the turning tool rod is detachably arranged in the mounting groove, the other end of the turning tool rod is detachably connected with the blade, and the blade is located outside the mounting groove. According to the detachable lengthened combined tool rest boring device, the rotating blade is converted into a boring cutter for use, so that a semi-closed arc area to be machined on the rotating shaft seat is bored and milled, the machining requirement and the surface quality requirement of the semi-closed arc area are met, and back gouging is achieved; meanwhile, the boring and milling radius and the boring and milling height of the blade can be adjusted; and the rigidity of the extension cutter bar is also enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of machining, in particular to a detachable extended combined tool rest boring device. Background Art

[0002] Rotating shaft seats need to be installed on the TBM type headstock and shield of the existing shield machine. There are multiple semi - enclosed arc areas in the design structure of the TBM type headstock and shield, and the above - mentioned semi - enclosed arc areas are used for the installation of the rotating shaft seats. Corresponding semi - enclosed arc areas also need to be machined on the corresponding rotating shaft seats. Usually, the upper and lower ends of the semi - enclosed arc areas are closed areas.

[0003] When using a boring tool according to the machining requirements of the semi - enclosed arc area, firstly, the overhang radius of the boring tool is too long (about R220mm), resulting in insufficient rigidity. Secondly, the machining range of the boring tool cannot meet the machining requirements and surface quality requirements of the semi - enclosed arc area. When using a ball - end mill according to the machining requirements of the semi - enclosed arc area, since the root of the semi - enclosed arc area needs to be root - cleared, the used ball - end mill cannot meet the root - clearing requirements. Therefore, there is an urgent need for a detachable extended combined tool rest boring device to solve the above problems. Content of the Utility Model

[0004] In order to solve the technical problems that the boring tool cannot meet the machining requirements of the semi - enclosed arc area and the ball - end mill cannot clear the root, the utility model provides a detachable extended combined tool rest boring device. The rotating blade is converted into a boring tool for use, realizing boring and milling processing of the to - be - machined semi - enclosed arc area on the rotating shaft seat, meeting the machining requirements and surface quality requirements of the semi - enclosed arc area, and realizing root - clearing; at the same time, the boring and milling radius and height of the blade can be adjusted; the rigidity of the extended tool bar is also strengthened.

[0005] The utility model provides a detachable extended combined tool rest boring device, which includes an extended tool bar, an extended tool rest, a turning tool bar and a blade. The two ends of the extended tool bar are rotatably connected to the rotating shaft seat. The extended tool rest is detachably arranged on the extended tool bar. An installation groove is arranged at the end of the extended tool rest. One end of the turning tool bar is detachably arranged in the installation groove. The other end of the turning tool bar is detachably connected to the blade and the blade is located outside the installation groove. When the detachable extended combined tool rest boring device is in use, the extended tool rest is installed on the extended tool bar, the blade is installed on the extended tool rest through the turning tool bar, and finally the extended tool bar is rotatably connected to the rotating shaft seat. The extended tool bar rotates relative to the rotating shaft seat, thereby driving the extended tool rest, the turning tool bar and the blade to rotate. The rotating blade is converted into a boring tool for use, realizing boring and milling processing of the to - be - machined semi - enclosed arc area on the rotating shaft seat.

[0006] Further, a mounting hole and a first screw hole communicating with the mounting hole are provided at the center position of the extended tool rest. The rod body of the extended tool bar passes through the mounting hole, and the end of the first screw passes through the first screw hole and abuts against the side wall of the extended tool bar. The extended tool rest can be fixed at different height positions on the extended tool bar through the first screw and the first screw hole.

[0007] Further, there are two first screw holes, and the two first screw holes correspond to each other.

[0008] Further, a plurality of stop groups are sequentially arranged along the height direction of the extended tool bar. Each stop group includes two stop notches oppositely arranged on the extended tool bar. The end of the first screw passes through the first screw hole and abuts against the stop notch of the extended tool bar. The stop notch ensures that the end of the first screw abuts against the side wall of the extended tool bar.

[0009] Further, locking groups are provided at both ends of the extended tool rest. Each locking group includes a plurality of second screw holes sequentially arranged along the length direction of the extended tool rest and communicating with the mounting groove. The end of the second screw passes through one of the second screw holes and abuts against the end of the tool bar away from the blade. The end of the tool bar away from the blade can be fixed at different positions in the mounting groove on the extended tool rest through the second screw and the second screw hole.

[0010] Further, a slotted groove and an avoidance hole communicating with each other are provided at the end of the tool bar away from the extended tool rest. A part of the blade is stuck in the slotted groove and the avoidance hole. A third screw hole is provided on the slotted groove, and a fourth screw hole is provided on the blade. The end of the third screw passes through the fourth screw hole and the third screw hole and abuts against the end of the tool bar away from the extended tool rest. The blade can be fixed at the end of the tool bar away from the extended tool rest through the third screw, the third screw hole and the fourth screw hole.

[0011] Further, two pin holes are oppositely arranged on the rotating shaft seat, and the semi-closed arc area to be machined is located between the two pin holes. One end of the extended tool bar passes through one of the pin holes and is fixedly connected to the machine tool spindle of the external shield machine. A bushing is fixedly connected in the other pin hole, and the other end of the extended tool bar passes through the bushing. The extended tool bar can rotate relative to the bushing. The machine tool spindle of the external shield machine rotates, and then drives the extended tool bar fixedly connected thereto to rotate relative to the bushing. The setting of the bushing increases the rigidity of the extended tool bar and ensures that the extended tool bar is more stable during rotation.

[0012] Further, a tool handle is provided at one end of the extended tool bar, and a pull stud is provided at the top of the tool handle. The pull stud is fixedly connected to the machine tool spindle of the external shield machine. The extended tool bar is fixedly connected to the machine tool spindle through the tool handle and the pull stud.

[0013] Furthermore, the blade has a parallelogram structure, and the horizontal side of the blade is parallel to the horizontal end face of the turning tool bar extending along its length direction.

[0014] Furthermore, there are two installation grooves, and the two installation grooves are located at both ends of the extended tool rest. The end of the turning tool bar away from the blade is detachably arranged in one of the installation grooves.

[0015] Compared with the prior art, the utility model has the following technical effects:

[0016] The detachable extended combined tool rest boring device of the utility model has a simple structure and fast installation. The rotating blade is converted into a boring tool for use, realizing boring and milling processing of the to-be-processed semi-closed arc area on the rotating shaft seat, meeting the processing requirements and surface quality requirements of the semi-closed arc area and realizing root clearing. At the same time, the boring and milling radius and height of the blade can be adjusted; the rigidity of the extended tool bar is also strengthened. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a front view structural schematic diagram of a detachable extended combined tool rest boring device of the utility model;

[0018] Figure 2 is a bottom view structural schematic diagram of a detachable extended combined tool rest boring device of the utility model;

[0019] Figure 3 is a structural schematic diagram of the extended tool rest of the utility model;

[0020] Figure 4 is a structural schematic diagram of the blade of the utility model;

[0021] Figure 5 is a structural schematic diagram of the turning tool bar of the utility model;

[0022] The reference numerals in the drawings are:

[0023] 1. Extended tool bar; 11. Stopping notch;

[0024] 2. Extended tool rest; 21. Installation hole; 22. First screw hole; 23. Installation groove; 24. Second screw hole;

[0025] 3. Turning tool bar; 31. Third screw hole; 32. Groove; 33. Avoidance hole;

[0026] 4. Blade;

[0027] 5. Rotating shaft seat; 51. Pin hole;

[0028] 6. Bush; 7. Tool handle; 8. Pull stud. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0030] As Figures 1 to 5 shown, a detachable extended combined tool holder boring device includes an extended tool shank 1, an extended tool holder 2, a turning tool shank 3, and a cutting blade 4. Both ends of the extended tool shank 1 are rotatably connected to a rotating shaft seat 5. The middle part of the extended tool holder 2 is detachably arranged in the middle part of the extended tool shank 1. Installation grooves 23 are arranged at both ends of the extended tool holder 2. One end of the turning tool shank 3 is detachably arranged in one of the installation grooves 23. The other end of the turning tool shank 3 is detachably connected to the cutting blade 4, and the cutting blade 4 is located outside the installation groove 23. Among them, the cutting blade 4 has a parallelogram structure, and the horizontal side of the cutting blade 4 is parallel to the horizontal end face extending along the length direction of the turning tool shank 3. The extended tool holder 2 has a structure that is wide in the center and narrow at both ends; the openings of the two installation grooves 23 are arranged back to back. The purpose of arranging the two installation grooves 23 is to facilitate the installation of the turning tool shank 3 and the cutting blade 4. When the extended tool holder 2 rotates and part of one of the installation grooves 23 turns to the outside of the extended tool holder 2, at this time, the turning tool shank 3 can be installed on this installation groove 23, and then it is convenient to install the cutting blade 4 on the turning tool shank 3.

[0031] The turning tool shank 3 is installed at different positions in the installation groove 23 of the extended tool holder 2, and the cutting blade 4 is installed at different positions on the turning tool shank 3, so as to realize the installation and locking of the cutting blade 4 in different radius ranges, and then realize the adjustment of the boring and milling radius of the cutting blade 4. The extended tool holder 2 can be installed at different height positions on the extended tool shank 1, so as to realize the boring and milling processing of the cutting blade 4 at different height positions on the extended tool shank 1. The extended tool shank 1 is rotatably connected to the rotating shaft seat 5, which can enhance the rigidity of the extended tool shank 1.

[0032] When the detachable extended combined tool holder boring device is in use, the extended tool holder 2 is installed on the extended tool shank 1, the cutting blade 4 is installed on the extended tool holder 2 through the turning tool shank 3, and finally the extended tool shank 1 is rotatably connected to the rotating shaft seat 5. The extended tool shank 1 rotates relative to the rotating shaft seat 5, thereby driving the extended tool holder 2, the turning tool shank 3, and the cutting blade 4 to rotate. The rotating cutting blade 4 is converted into a boring tool for use, realizing the boring and milling processing of the semi-closed arc area to be processed on the rotating shaft seat 5, meeting the processing requirements and surface quality requirements of the semi-closed arc area, and realizing root cleaning.

[0033] The detachable extended combined tool holder boring device of this embodiment has a simple structure and fast installation. The rotating cutting blade 4 is converted into a boring tool for use, realizing the boring and milling processing of the semi-closed arc area to be processed on the rotating shaft seat 5, meeting the processing requirements and surface quality requirements of the semi-closed arc area, and realizing root cleaning. At the same time, the boring and milling radius and height of the cutting blade 4 can be adjusted; the rigidity of the extended tool shank 1 is also enhanced.

[0034] As an implementable manner, an installation hole 21 and two first screw holes 22 communicated with the installation hole 21 are arranged at the central position of the extension tool rest 2, and the two first screw holes 22 correspond to each other. The rod body of the extension tool bar 1 passes through the installation hole 21, and the end of the first screw passes through the first screw hole 22 and abuts against the side wall of the extension tool bar 1. By adjusting the position of the extension tool rest 2 on the extension tool bar 1, the boring and milling processing of the cutting blade 4 at different height positions on the extension tool bar 1 can be realized. The extension tool rest 2 can be fixed at different height positions on the extension tool bar 1 through the first screw and the first screw hole 22. The purpose of arranging two first screw holes 22 is to further ensure the stable connection between the extension tool bar 1 and the extension tool rest 2.

[0035] As an implementable manner, a plurality of stop groups are sequentially arranged on the extension tool bar 1 along its height direction. Each stop group includes two stop notches 11 oppositely arranged on the extension tool bar 1. The end of the first screw passes through the first screw hole 22 and abuts against the stop notch 11 on the extension tool bar 1. The stop notch 11 ensures that the end of the first screw abuts against the side wall of the extension tool bar 1.

[0036] As an implementable manner, locking groups are arranged at both ends of the extension tool rest 2. Each locking group includes a plurality of second screw holes 24 sequentially arranged along the length direction of the extension tool rest 2 and communicated with the installation groove 23. The end of the second screw passes through one of the second screw holes 24 and abuts against one end of the turning tool bar 3 away from the cutting blade 4. By adjusting the position of the turning tool bar 3 in the installation groove 23 of the extension tool rest 2, the installation and locking of the cutting blade 4 in different radius ranges can be realized, and further the adjustment of the boring and milling radius of the cutting blade 4 can be realized. The end of the turning tool bar 3 away from the cutting blade 4 can be fixed at different positions in the installation groove 23 on the extension tool rest 2 through the second screw and the second screw hole 24.

[0037] As an implementable manner, a slotted opening 32 and an avoidance hole 33 communicated with each other are arranged at one end of the turning tool bar 3 away from the extension tool rest 2. A part of the cutting blade 4 is stuck in the slotted opening 32 and the avoidance hole 33. The slotted opening 32 and the avoidance hole 33 provide a space for the cutting blade 4. A third screw hole 31 is arranged on the slotted opening 32, and a fourth screw hole is arranged on the cutting blade 4. The end of the third screw passes through the fourth screw hole and the third screw hole 31 and abuts against one end of the turning tool bar 3 away from the extension tool rest 2. By adjusting the position of the cutting blade 4 on the turning tool bar 3, the installation and locking of the cutting blade 4 in different radius ranges can be realized, and further the adjustment of the boring and milling radius of the cutting blade 4 can be realized. The cutting blade 4 can be fixed at one end of the turning tool bar 3 away from the extension tool rest 2 through the third screw, the third screw hole 31 and the fourth screw hole. Further, a slope is arranged at one end of the turning tool bar 3 away from the extension tool rest 2, and the slope provides a space for the cutting blade 4 to avoid affecting the operation of the cutting blade 4.

[0038] As an implementable manner, two pin holes 51 are oppositely arranged on the rotating shaft seat 5, and the semi-closed arc area to be machined is located between the two pin holes 51. The pin holes 51 are machined in advance. One end of the extended tool shank 1 passes through one of the pin holes 51 and is fixedly connected to the machine tool spindle of the external shield machine. A bushing 6 is fixedly connected in the other pin hole 51. The bushing 6 is fixed in the pin hole 51 by spot welding. The other end of the extended tool shank 1 passes through the bushing 6, and the extended tool shank 1 can rotate relative to the bushing 6. Among them, the machine tool spindle of the external shield machine rotates, and then drives the extended tool shank 1 fixedly connected thereto to rotate relative to the bushing 6. The setting of the bushing 6 increases the rigidity of the extended tool shank 1 and ensures that the extended tool shank 1 is more stable during rotation.

[0039] As an implementable manner, a tool holder 7 is arranged at one end of the extended tool shank 1, and a pull stud 8 is arranged at the top of the tool holder 7. The pull stud 8 is fixedly connected to the machine tool spindle of the external shield machine. In this embodiment, the extended tool shank 1 is fixedly connected to the machine tool spindle of the shield machine through the tool holder 7 and the pull stud 8.

[0040] The above-described embodiments are only the preferred embodiments of the present invention, and are only used to explain the present invention, not to limit the scope of implementation of the present invention. For those skilled in the art of this technology, of course, other implementation manners can be easily made by means of replacement or change according to the technical content disclosed in this specification. Therefore, all changes and improvements made in the principles and process conditions of the present invention should be included within the scope of the patent application of the present invention.

Claims

1. A detachable extended combined tool holder boring device, characterized in that, It includes an extended tool shank (1), an extended tool holder (2), a turning tool shank (3) and a cutting blade (4). Both ends of the extended tool shank (1) are rotatably connected to a rotating shaft seat (5). The extended tool holder (2) is detachably arranged on the extended tool shank (1). An installation groove (23) is arranged at the end of the extended tool holder (2). One end of the turning tool shank (3) is detachably arranged in the installation groove (23). The other end of the turning tool shank (3) is detachably connected to the cutting blade (4), and the cutting blade (4) is located outside the installation groove (23).

2. The detachable extended combined tool rest boring device according to claim 1, characterized in that, An installation hole (21) and a first screw hole (22) communicating with the installation hole (21) are arranged at the central position of the extended tool holder (2). The rod body of the extended tool shank (1) passes through the installation hole (21), and the end of a first screw passes through the first screw hole (22) and abuts against the side wall of the extended tool shank (1).

3. The detachable extended combined tool holder boring device according to claim 2, wherein There are two first screw holes (22), and the two first screw holes (22) correspond to each other.

4. The detachable extended combined tool holder boring device according to claim 3, characterized in that, A plurality of stop groups are sequentially arranged on the extended tool shank (1) along its height direction. Each stop group includes two stop notches (11) oppositely arranged on the extended tool shank (1). The end of the first screw passes through the first screw hole (22) and abuts against the stop notch (11) of the extended tool shank (1).

5. The detachable extended combined tool holder boring device according to claim 1, characterized in that Locking groups are arranged at both ends of the extended tool holder (2). Each locking group includes a plurality of second screw holes (24) sequentially arranged along the length direction of the extended tool holder (2) and communicating with the installation groove (23). The end of a second screw passes through one of the second screw holes (24) and abuts against the end of the turning tool shank (3) far from the cutting blade (4).

6. The detachable extended combined tool holder boring device according to claim 1, characterized in that A slotted groove (32) and an avoidance hole (33) communicating with each other are arranged at the end of the turning tool shank (3) far from the extended tool holder (2). A part of the cutting blade (4) is stuck in the slotted groove (32) and the avoidance hole (33). A third screw hole (31) is arranged on the slotted groove (32). A fourth screw hole is arranged on the cutting blade (4). The end of a third screw passes through the fourth screw hole and the third screw hole (31) and abuts against the end of the turning tool shank (3) far from the extended tool holder (2).

7. The detachable extended combined tool holder boring device according to claim 1, characterized in that, Two pin holes (51) are oppositely arranged on the rotating shaft seat (5), and the semi-closed arc area to be machined is located between the two pin holes (51). One end of the extended tool shank (1) passes through one of the pin holes (51) and is fixedly connected to the machine tool spindle of an external shield machine. A bushing (6) is fixedly connected in the other pin hole (51). The other end of the extended tool shank (1) passes through the bushing (6), and the extended tool shank (1) can rotate relative to the bushing (6).

8. The detachable extended combined tool rest boring device according to claim 7, characterized in that, A tool handle (7) is arranged at one end of the extended tool shank (1). A pull stud (8) is arranged at the top of the tool handle (7), and the pull stud (8) is fixedly connected to the machine tool spindle of an external shield machine.

9. The detachable extended combined tool holder boring device according to claim 1, characterized in that, The cutting blade (4) has a parallelogram structure, and the horizontal side of the cutting blade (4) is parallel to the horizontal end face extending along the length direction of the turning tool shank (3).

10. The detachable extended combined tool holder boring device according to claim 1, characterized in that, There are two installation grooves (23), and the two installation grooves (23) are located at both ends of the extended tool rest (2). One end of the tool shank (3) away from the cutting blade (4) is detachably arranged in one of the installation grooves (23).

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