Numerical control boring cutter capable of being quickly assembled

Abstract

The utility model relates to the field of numerical control boring cutters, in particular to a numerical control boring cutter capable of being quickly assembled, which comprises a boring cutter body, a main body used for being in butt joint with processing equipment, a fixing bolt and a fixed cutter holder penetrating through the outer part of the boring cutter body and used for being connected and installed, and a butt joint groove is formed in the outer part of the fixed cutter holder. The fine adjustment cutter holder, the abutting disc, the rotating disc, the inner rotating groove and the mounting sleeve are arranged, firstly, a proper cutter bar is taken out to be directly inserted into the mounting sleeve of the cavity of the cutter handle, the cutter bar abuts against the mounting sleeve downwards, the torsion spring drives the abutting disc and the mounting sleeve to stretch out and draw back towards the mounting groove, and then the mounting sleeve is rotated through the rotating disc. When the numerical control boring cutter is assembled, the convex disc of the mounting sleeve rotates in the inner rotating groove, at the moment, when the wedging block on the convex disc rotates to the inner wedging groove of the inner rotating groove, the wedging block can be completely embedded, the torsion spring drives the mounting sleeve to be firmly mounted in the cavity of the cutter handle, and finally the fastening bolt is mounted in through the aligned screw hole, so that the quick assembly of the numerical control boring cutter can be completed.

Description

Technical Field

[0001] The utility model relates to the field of numerical control boring tools, in particular to a numerically controlled boring tool with a quick assembly type. Background Art

[0002] A numerical control boring tool is a cutting tool specifically used for boring holes on a numerical control machine tool. In numerical control machining, the boring operation is to cut along the axis direction of the workpiece by the boring tool to remove materials and achieve the predetermined hole diameter, hole depth and surface quality. A numerical control boring tool is a cutting tool, usually composed of a tool shank, a cutting edge and a cutting edge support part. It rotates to make the circumferential cutting edge of the tool rotate in the metal workpiece to form holes or surfaces with high precision and good surface quality. Boring tools are usually used for machining various precision holes, including internal holes, tapered holes, spherical holes, chamfered holes, etc. Its cutting tool can be conveniently used for machining holes with different shapes and sizes, with high efficiency and high precision.

[0003] After retrieval, a compound boring tool for a numerical control boring machine with a publication number of CN208895204U specifically discloses a compound boring tool for a numerical control boring machine, including a cutting blade, a tool holder, a compression screw, a tool body and a cutting blade screw. Four tool holders are symmetrically and fixedly installed on the outer side of one end of the tool body, and a cutting blade is fixedly installed on each tool holder. Two compression screws and two cutting blade screws are also symmetrically and fixedly installed on the outer side of the tool body. This device changes the single-sided roughing and finishing boring tool body into a symmetric double-blade roughing and finishing boring tool body, so that the tool bar is symmetrically stressed during cutting, reducing the vibration caused by asymmetric stress. The inclined tool holder is changed to an embedded type, and the tool holder is more firmly fixed. When replacing the cutting blade, there is no need to adjust the size by dial indicator, and the cutting blade can be replaced quickly. The cutting blade is changed from a rhombus to a square, which can increase two chip angles, reduce the use cost of the cutting blade, improve production efficiency, the hole diameter inspection is reduced from 100% to 10%, the vibration during processing is significantly reduced, the service life of the cutting blade is increased, and the later cost is reduced.

[0004] During the use of the existing numerical control boring tool, due to different processing requirements of the workpiece, it is rather cumbersome to replace the numerical control boring tool after installation, which not only delays the overall processing efficiency, but also increases the labor intensity of workers. Moreover, the numerical control boring tool in the above comparative case also lacks the ability to quickly assemble and replace the numerical control boring tool. In this way, when encountering batch processing, it undoubtedly delays the overall workpiece processing efficiency.

[0005] Therefore, it is very necessary to invent a numerically controlled boring tool with a quick assembly type to solve the above problems. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a quickly assembled CNC boring tool, which can meet the purpose of quick assembly by fine-tuning the tool holder, the abutment plate, the rotating plate, the inner rotating groove and the mounting sleeve, thereby improving the replacement speed of the CNC boring tool during the processing, reducing the labor intensity brought to workers by the cumbersome replacement method, accelerating the overall use range and the processing efficiency and timeliness of the workpiece, so as to solve the problem in the prior art that during the use of the CNC boring tool, due to different processing requirements of the workpiece, the CNC boring tool is cumbersome to replace after installation, which not only delays the overall processing timeliness, but also increases the labor intensity of the workers. In addition, the CNC boring tool in the above-mentioned comparative case also lacks the ability to quickly assemble and replace the CNC boring tool, which undoubtedly delays the overall workpiece processing efficiency when encountering batch processing.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quickly assembled CNC boring tool, comprising a boring tool body, a main body for docking and installing with a processing equipment;

[0008] A fixing bolt is passed through the outside of the boring tool body and is used to connect and install the fixed tool holder, and a docking groove is provided on the outside of the fixed tool holder, a fine-tuning groove is provided inside the docking groove, and the fine-tuning tool holder is movably connected inside the docking groove;

[0009] The tool handle cavity is arranged above the fine-tuning tool seat and is used to assist in installing the tool rod. The fine-tuning tool seat is provided with an installation groove inside, a torsion spring is fixedly installed inside the installation groove, a resistance disk is fixedly installed at one end of the torsion spring, and a rotating disk is arranged above the resistance disk;

[0010] The inner rotating groove is arranged inside the cavity of the tool handle for quickly replacing the tool rod, and an inner fitting groove is opened above the inner rotating groove, a mounting sleeve is arranged inside the inner rotating groove, a convex disk is fixedly installed outside the mounting sleeve, and a fitting block is arranged above the convex disk.

[0011] Preferably, a threaded screw rod penetrates the outside of the fixed tool holder, an adjustment disk is fixedly mounted on one end of the threaded screw rod, and a displacement thread sleeve is movably connected to the outside of the threaded screw rod.

[0012] Preferably, a fixed slide groove is provided inside the fixed knife seat, a fixed sliding block is movably connected inside the fixed slide groove, and a fine-tuning block is fixedly installed above the displacement thread sleeve.

[0013] Preferably, the tool handle cavity is fixedly connected to the fine-tuning tool seat, and the abutment plate is movably connected to the mounting groove.

[0014] Preferably, the mounting sleeve is movably connected to the inner rotating groove, and the inner fitting groove is used in conjunction with the fitting block.

[0015] Preferably, a fastening bolt passes through the outside of the tool handle cavity, one end of the fastening bolt is movably connected to a tool rod, and one end of the tool rod is fixedly mounted with a boring tool blade.

[0016] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0017] The utility model is provided with a fine-tuning tool seat, a resistance plate, a rotating plate, an inner rotating groove and an installation sleeve. First, a suitable tool rod is taken out and directly inserted into the installation sleeve of the tool handle cavity. The installation sleeve is first resisted downward to allow the torsion spring to drive the resistance plate and the installation sleeve to extend and retract into the installation groove. Then, the installation sleeve is rotated by the rotating plate to allow the convex plate of the installation sleeve to rotate in the inner rotating groove. At this time, the fitting block on the convex plate will be fully embedded when it is rotated to the inner fitting groove of the inner rotating groove. The torsion spring drives the installation sleeve to be firmly installed in the tool handle cavity. Finally, the fastening bolt is installed into the tool handle cavity through the aligned screw hole to complete the rapid assembly of the CNC boring tool. In this way, the CNC boring tool meets the purpose of rapid assembly, improves the replacement speed of the CNC boring tool during the processing, reduces the labor intensity brought to the workers by the cumbersome replacement method, and accelerates the overall scope of use as well as the processing efficiency and timeliness of the workpiece.

[0018] The utility model is provided with a fixed tool holder, a fine-tuning groove, a fine-tuning tool holder, a threaded screw, an adjustment disk and a displacement thread sleeve. When the CNC boring tool is used to perform fine-tuning and fine-machining on a workpiece, it is too cumbersome and time-consuming to directly change the position of the CNC boring tool. The adjustment disk can be twisted to allow the threaded screw to drive the displacement thread sleeve to move left and right inside the fixed tool holder. As the displacement thread sleeve moves, the displacement thread sleeve drives the fine-tuning tool holder to move left and right on the fixed tool holder in the fine-tuning groove through the fine-tuning block, thereby completing the adjustment of the action position of the tool rod and the boring tool blade to meet the fine-machining work of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the fixed knife holder structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the displacement wire sleeve structure of the utility model;

[0023] Figure 4This is a schematic diagram of the structure of the friction disk of the utility model;

[0024] Figure 5 This is a schematic diagram of the knife bar structure of the utility model.

[0025] Description of reference numerals:

[0026] 1. Boring tool body; 2. Fixing bolt; 3. Fixed tool holder; 4. Docking groove; 5. Fine-tuning groove; 6. Fine-tuning tool holder; 7. Threaded screw; 8. Adjusting disk; 9. Displacement thread sleeve; 10. Fixed slide groove; 11. Fixed slide block; 12. Fine-tuning block; 13. Tool handle cavity; 14. Mounting groove; 15. Torsion spring; 16. Resistance disk; 17. Rotating disk; 18. Inner rotating groove; 19. Inner fitting groove; 20. Mounting sleeve; 21. Boss disk; 22. Fitting block; 23. Fastening bolt; 24. Tool bar; 25. Boring tool blade. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0028] The utility model provides Figures 1-5 A quickly assembled CNC boring tool is shown, comprising a boring tool body 1, which is used to be docked and installed with a processing device;

[0029] A fixing bolt 2 is passed through the outside of the boring tool body 1 and is used to connect and install a fixed tool holder 3. A docking groove 4 is provided on the outside of the fixed tool holder 3, a fine-tuning groove 5 is provided inside the docking groove 4, and a fine-tuning tool holder 6 is movably connected inside the docking groove 4.

[0030] The tool holder cavity 13 is arranged above the fine-tuning tool holder 6 and is used to assist in installing the tool rod 24. The fine-tuning tool holder 6 is provided with an installation groove 14 inside, a torsion spring 15 is fixedly installed inside the installation groove 14, a contact plate 16 is fixedly installed at one end of the torsion spring 15, and a rotating plate 17 is arranged above the contact plate 16;

[0031] The inner rotating groove 18 is arranged inside the tool handle cavity 13 for quickly replacing the tool rod 24, and an inner fitting groove 19 is opened above the inner rotating groove 18, and a mounting sleeve 20 is arranged inside the inner rotating groove 18, and a cam 21 is fixedly installed outside the mounting sleeve 20, and a fitting block 22 is arranged above the cam 21, which first contacts the mounting sleeve 20 downward, allowing the torsion spring 15 to drive the contact disk 16 and the mounting sleeve 20 to extend and retract into the mounting groove 14, and then the mounting sleeve 20 is rotated by the rotating disk 17, so that the cam 21 of the mounting sleeve 20 rotates in the inner rotating groove 18, and at this time, the fitting block 22 on the cam 21 will be fully embedded when it rotates to the inner fitting groove 19 of the inner rotating groove 18, and the torsion spring 15 drives the mounting sleeve 20 to be firmly installed in the tool handle cavity 13.

[0032] As Figure 1 , Figure 2 and Figure 3 shown, a threaded lead screw 7 penetrates through the outside of the fixed tool block 3. One end of the threaded lead screw 7 is fixedly installed with an adjustment disc 8. A displacement wire sleeve 9 is movably connected to the outside of the threaded lead screw 7. The adjustment disc 8 can be twisted to make the threaded lead screw 7 drive the displacement wire sleeve 9 to move left and right inside the fixed tool block 3. As the displacement wire sleeve 9 moves, the displacement wire sleeve 9 drives the fine adjustment tool block 6 to perform a horizontal shift of the left and right positions on the fixed tool block 3 through the fine adjustment block 12 in the fine adjustment groove 5, thereby completing the adjustment of the acting positions of the tool bar 24 and the boring tool blade 25. A fixed sliding groove 10 is opened inside the fixed tool block 3. A fixed sliding block 11 is movably connected inside the fixed sliding groove 10. A fine adjustment block 12 is fixedly installed above the displacement wire sleeve 9. The fixed sliding block 11 and the fixed sliding groove 10 are opposite to the lower side of the displacement wire sleeve 9 to limit the displacement wire sleeve 9 when it moves inside the fixed tool block 3, so as to ensure that the fine adjustment block 12 moves in the fine adjustment groove 5.

[0033] As Figure 1 , Figure 4 and Figure 5 shown, the tool shank cavity 13 is fixedly connected to the fine adjustment tool block 6. The contact disc 16 is movably connected to the installation groove 14. The structure of the contact disc 16 is simple and easy to operate. In case of a malfunction, it is also convenient for maintenance personnel to repair or replace it in time. The installation sleeve 20 is movably connected to the inner rotation groove 18. The inner fitting groove 19 is used in cooperation with the fitting block 22. By rotating the rotating disc 17 to rotate the installation sleeve 20, the convex disc 21 of the installation sleeve 20 rotates in the inner rotation groove 18. At this time, when the fitting block 22 on the convex disc 21 rotates to the inner fitting groove 19 of the inner rotation groove 18, it will be completely embedded. The torsion spring 15 drives the installation sleeve 20 to be firmly installed in the tool shank cavity 13. A fastening bolt 23 penetrates through the outside of the tool shank cavity 13. One end of the fastening bolt 23 is movably connected to a tool bar 24. One end of the tool bar 24 is fixedly installed with a boring tool blade 25. By aligning the screw holes, the fastening bolt 23 is installed into the installation sleeve 20 and connected to the tool bar 24, and the reinforcement installation of the tool bar 24 can be completed, ensuring the stability of the installation of the quick-assembly type CNC boring tool.

[0034] The working principle of this utility model: First, on the workpiece processing equipment, dock and install the boring tool body 1 and the fixed tool holder 3 with the workpiece processing equipment. Then, select a suitable tool shank 24 and boring tool blade 25 according to the different workpieces being processed currently. Insert the tool shank 24 directly into the mounting sleeve 20 of the tool holder cavity 13. First, press downward against the mounting sleeve 20, so that the torsion spring 15 drives the abutting disc 16 and the mounting sleeve 20 to expand and contract in the mounting groove 14. Then, rotate the mounting sleeve 20 by rotating the rotating disc 17, so that the convex disc 21 of the mounting sleeve 20 rotates in the inner rotating groove 18. Subsequently, when the fitting blocks 22 on the convex disc 21 rotate to the inner fitting groove 19 of the inner rotating groove 18, they will all be embedded. The torsion spring 15 drives the mounting sleeve 20 to be firmly installed in the tool holder cavity 13. Then, install the fastening bolt 23 into the mounting sleeve 20 through the aligned screw holes and connect it with the tool shank 24, thus completing the reinforcement installation of the tool shank 24, ensuring the stability of the installation of this quickly assembled numerical control boring tool. In this way, the quickly assembled operation of the numerical control boring tool can be completed, making this numerical control boring tool meet the purpose of being quickly assembled, improving the replacement speed of the numerical control boring tool during the processing. Then, start the processing equipment to perform tool alignment on the numerical control boring tool and then process the workpiece. Subsequently, when it is necessary to perform fine adjustment and finish machining on the workpiece during the use of this numerical control boring tool, directly changing the position of the numerical control boring tool is too cumbersome and time-consuming. The adjustment disc 8 can be twisted, so that the threaded lead screw 7 drives the displacement bushing 9 to move left and right inside the fixed tool holder 3. As the displacement bushing 9 moves, the displacement bushing 9 drives the fine adjustment tool holder 6 to perform horizontal movement of the left and right positions on the fixed tool holder 3 through the fine adjustment block 12 in the fine adjustment groove 5, thereby completing the adjustment of the acting positions of the tool shank 24 and the boring tool blade 25, meeting the finish machining work of the workpiece. Finally, after completing all the installation and use work of the numerical control boring tool according to the above operations, perform daily maintenance on this device. Just like this, the use process of this quickly assembled numerical control boring tool is completed.

[0035] Only some exemplary embodiments of the present utility model have been described by way of illustration above. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present utility model. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present utility model.

Claims

1. A fast-assembly type CNC boring tool, characterized in that: include The boring tool body (1) is a main body used for docking and installation with a processing device; A fixing bolt (2) passes through the outside of the boring tool body (1) and is used for connecting and installing the fixed tool holder (3); a docking groove (4) is provided on the outside of the fixed tool holder (3); a fine-tuning groove (5) is provided on the inside of the docking groove (4); and a fine-tuning tool holder (6) is movably connected to the inside of the docking groove (4); A tool handle cavity (13) is arranged above the fine-tuning tool seat (6) and is used to assist in installing the tool rod (24); a mounting groove (14) is arranged inside the fine-tuning tool seat (6); a torsion spring (15) is fixedly installed inside the mounting groove (14); a contact plate (16) is fixedly installed at one end of the torsion spring (15); and a rotating plate (17) is arranged above the contact plate (16); An inner rotating groove (18) is arranged inside the tool handle cavity (13) and is used for quickly replacing the tool rod (24). An inner fitting groove (19) is provided above the inner rotating groove (18). A mounting sleeve (20) is provided inside the inner rotating groove (18). A convex disc (21) is fixedly mounted outside the mounting sleeve (20). A fitting block (22) is provided above the convex disc (21).

2. A quickly assembled CNC boring tool according to claim 1, characterized in that: A threaded screw (7) penetrates the outside of the fixed knife seat (3), an adjustment disk (8) is fixedly mounted on one end of the threaded screw (7), and a displacement thread sleeve (9) is movably connected to the outside of the threaded screw (7).

3. A quickly assembled CNC boring tool according to claim 2, characterized in that: A fixed slide groove (10) is provided inside the fixed knife seat (3), a fixed sliding block (11) is movably connected inside the fixed slide groove (10), and a fine-tuning block (12) is fixedly installed above the displacement thread sleeve (9).

4. The quickly assembled CNC boring tool according to claim 1, characterized in that: The tool handle cavity (13) is fixedly connected to the fine-tuning tool seat (6), and the abutment plate (16) is movably connected to the mounting groove (14).

5. The quickly assembled CNC boring tool according to claim 1, characterized in that: The mounting sleeve (20) is movably connected to the inner rotating groove (18), and the inner fitting groove (19) is used in conjunction with the fitting block (22).

6. The quickly assembled CNC boring tool according to claim 1, characterized in that: A fastening bolt (23) passes through the outside of the tool handle cavity (13); one end of the fastening bolt (23) is movably connected to a tool rod (24); and one end of the tool rod (24) is fixedly mounted with a boring tool blade (25).

Images