Boring bar-shaped boring cutter

Abstract

The utility model discloses a boring-bar-shaped boring cutter which comprises a boring bar shaft, an adjusting hole is formed in the position of a center shaft of the boring bar shaft, a plurality of boring cutter fixing holes are formed in the side wall of the boring bar shaft at equal intervals, the boring cutter fixing holes are connected and communicated with the adjusting hole, a threaded rod is rotatably connected in the adjusting hole in a limited mode, and the threaded rod is fixedly connected with the boring bar shaft. A plurality of sliding blocks are connected to the outer side of the threaded rod in a threaded and sleeving mode at equal intervals, a movable pressing block is connected to one side of each sliding block, a fixed pressing block is arranged on the inner top wall of each boring cutter fixing hole, a connecting block is arranged between the fixed pressing blocks and the movable pressing blocks, a boring cutter is arranged at one end of the connecting block, and the boring cutter is arranged at the other end of the connecting block. By means of the structure, a plurality of boring cutters can be limited and fixed at a time, the speed of installation, disassembly and replacement of the boring cutters in the midway is increased, and the working efficiency and practicability of the device in the using process are improved.

Description

Technical Field

[0001] The utility model relates to the field of boring tool clamping, in particular to a boring bar-shaped boring tool. Background Art

[0002] Boring cutters are a type of hole processing tool, usually with round handles, and also with square handles for larger workpieces. They are generally found in vertical lathes, and are most commonly used for inner hole processing, hole expansion, profiling, etc. However, the existing boring bar-shaped boring cutters have certain problems when used, and still need to be continuously improved;

[0003] For example, a multi-tool head fixed boring bar for boring holes disclosed in the utility model with authorization announcement number CN216989917U includes a boring bar shaft, a plurality of boring tool fixing holes for inserting boring tools are opened on the boring bar shaft, fixing screws fastened to the side of the boring tool along the radial direction of the boring bar shaft are installed on the side of the boring tool fixing hole, side clamping blocks are installed on both sides of the boring tool fixing hole along the length direction of the boring bar shaft, and a clamping mechanism for clamping the side clamping blocks on the boring tool is also included, and the clamping mechanism includes An adjusting screw is mounted on the side of the boring bar shaft, the end of the adjusting screw is a tapered head, and the end of the side clamping block away from the boring tool is provided with an inclined surface adapted to the tapered head. The device is provided with multiple boring tool fixing holes for inserting boring tools on the boring bar shaft, and boring tools are fixed in the boring tool fixing holes and clamped and fixed by fixing screws. Multiple boring tools can be used to work simultaneously, which is not only suitable for machining holes with fixed diameters, but also can realize the boring of stepped holes, thereby improving the boring efficiency.

[0004] However, when the device is used to fix and install multiple boring tools, it is necessary to rotate and adjust the fixing screws one by one, and then limit and fix the boring tools one by one by rotating the multiple fixing screws. In addition, when boring holes in some plates with higher material density, it may be necessary to replace the boring tools several times in the middle, which makes the structure for fixing the boring tools inconvenient to adjust and use, thereby affecting the working efficiency of the device during the processing. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a boring bar-shaped boring tool, which can solve the problem that when multiple boring tools are fixedly installed, the fixing screws need to be rotated and adjusted one by one, and then the boring tools are limited and fixed one by one by rotating and adjusting the multiple fixing screws. In addition, when boring holes in some plates with higher material density, the boring tools may need to be replaced multiple times in the middle, which leads to the technical problem that the structure for fixing the boring tools is inconvenient to adjust and use, thereby affecting the working efficiency of the device during the processing.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a boring bar-shaped boring tool, including a boring bar shaft, an adjustment hole is opened at the central axis position of the boring bar shaft, a plurality of boring tool fixing holes are opened at equal distances on the side wall of the boring bar shaft, and the boring tool fixing hole is connected to the adjustment hole, a threaded rod is connected to the adjusting hole for limited rotation, a plurality of sliding blocks are connected to the threaded sleeves at equal distances on the outside of the threaded rod, a movable clamping block is connected to one side of the plurality of sliding blocks, a fixed clamping block is arranged on the top wall of the plurality of boring tool fixing holes, a connecting block is arranged between the fixed clamping block and the movable clamping block, and a boring tool is arranged at one end of the connecting block.

[0007] As a preferred technical solution of the utility model, the top end of the threaded rod is limitedly rotated and arranged on the top wall of the adjustment hole, and the bottom end of the threaded rod is movably passed through the movable hole opened in the bottom wall of the boring rod shaft and is connected with an adjustment button.

[0008] As a preferred technical solution of the utility model, the surface of the adjusting button is provided with rough textures for increasing the friction between the hand and the adjusting button.

[0009] As a preferred technical solution of the utility model, rubber sheets are connected to the opposite surfaces of the fixed pressing block and the movable pressing block.

[0010] As a preferred technical solution of the utility model, the cross section of the adjusting hole is rectangular, and the sliding block is limitedly slidably connected in the adjusting hole.

[0011] As a preferred technical solution of the utility model, the movable pressing block is limitedly slidably connected in the fixing hole of the boring tool.

[0012] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0013] The rotation adjustment of the threaded rod is achieved through the cooperation setting of the threaded rod connected by limited rotation and the adjusting button. The upward adjustment of the multiple sliders is achieved through the cooperation setting of the rotationally adjustable threaded rod and the multiple sliders connected to the outer side of the threaded rod by the threaded sleeve. The movable clamping block is driven to move upward for adjustment through the multiple upwardly movable adjustment sliders, thereby clamping and fixing the multiple connecting blocks and the boring tools arranged between the multiple fixed clamping blocks and the multiple movable clamping blocks. The setting of this structure can limit and fix multiple boring tools at one time, speeding up the installation and disassembly and the rate of replacing the boring tools in the middle, and improving the working efficiency and practicality of the device when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from the first viewing angle;

[0015] Figure 2This is a schematic diagram of the cross-sectional three-dimensional structure of the boring bar shaft of the utility model;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the local structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the three-dimensional structure of the utility model from a second viewing angle;

[0018] Among them: 1. Boring rod shaft; 2. Adjustment hole; 3. Boring tool fixing hole; 4. Fixed clamping block; 5. Movable clamping block; 6. Rubber sheet; 7. Threaded rod; 8. Slider; 9. Adjustment button; 10. Connecting block; 11. Boring tool; 12. Movable hole. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0020] Example

[0021] Please refer to Figure 1-4 As shown, the utility model provides a boring bar-shaped boring tool, an adjusting hole 2 is opened at the central axis position of the boring bar shaft 1, and the cross section of the adjusting hole 2 is rectangular, and then a plurality of boring tool fixing holes 3 are opened at equal distances on the side wall of the boring bar shaft 1, and the plurality of boring tool fixing holes 3 are connected and communicated with the adjusting hole 2, and then a threaded rod 7 is connected in a limited rotation in the adjusting hole 2, and a plurality of sliders 8 are connected by threaded sleeves at equal distances on the outside of the threaded rod 7, and the plurality of sliders 8 are all limitedly slidably connected in the adjusting hole 2 with a rectangular cross section, and then a movable clamping block 5 is connected on one side of the plurality of sliders 8, and the movable clamping block 5 is limitedly slidably connected in the boring tool fixing hole 3, and then a fixed clamping block 4 is arranged on the top wall of the plurality of boring tool fixing holes 3, and then a connecting block 10 is arranged between the fixed clamping block 4 and the movable clamping block 5, and finally a boring tool 11 is arranged at one end of the connecting block 10;

[0022] When adjusting and using, the threaded rod 7 can be adjusted and rotated first, and the multiple sliders 8 with equidistant threads on the outer side of the threaded rod 7 can be driven to move upwards and adjusted by the thread of the rotating and adjusted threaded rod 7. The multiple sliders 8 that move upwards and adjust can respectively drive the multiple movable clamping blocks 5 to move upwards at the same time, thereby clamping and fixing the connecting blocks 10 arranged between the multiple fixed clamping blocks 4 and the multiple movable clamping blocks 5 at the same time, and the clamped and fixed connecting blocks 10 can realize the clamping and fixing of the boring tool 11 arranged on the side wall of the connecting block 10;

[0023] At the same time, the top of the threaded rod 7 is limited and rotated in the top wall of the adjusting hole 2, and the bottom of the threaded rod 7 is movably penetrated through the movable hole 12 opened in the bottom wall of the boring rod shaft 1, and an adjusting button 9 is connected and arranged. The adjustment and rotation of the threaded rod 7 can be realized by the setting of the adjusting button 9, and the surface of the adjusting button 9 is provided with rough textures. The rough textures opened on the surface of the adjusting button 9 can increase the friction between the hand and the adjusting button 9, so that the threaded rod 7 can be rotated and adjusted conveniently by the adjusting button 9. Finally, the opposite surfaces of the fixed pressing block 4 and the movable pressing block 5 are connected and arranged with rubber sheets 6.

[0024] Specific working principle:

[0025] When the boring tool 11 is fixedly installed or replaced for use, one end of the boring tool 11 can be first set in the connecting block 10, which is set in the boring tool fixing hole 3 opened on the side wall of the boring rod shaft 1 and is located between the fixed clamping block 4 and the movable clamping block 5. Then, the adjusting threaded rod 7 is rotated and adjusted by the adjusting knob 9. The rotating and adjusting threaded rod 7 drives multiple sliders 8 with equidistant threads on its outer side to move upward for adjustment. The multiple upwardly moving adjustable sliders 8 respectively drive the multiple movable clamping blocks 5 to move upward at the same time, and then the connecting block 10 set between the multiple fixed clamping blocks 4 and the multiple movable clamping blocks 5 are clamped and fixed at the same time. The clamped and fixed connecting block 10 realizes the clamping and fixing of the boring tool 11 set on the side wall of the connecting block 10. The setting of this structure can limit and fix multiple boring tools 11 at one time, speeds up the installation and disassembly and the rate of replacing the boring tool 11 in the middle, and improves the working efficiency and practicality of the device when in use.

[0026] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A boring bar-shaped boring tool, comprising a boring bar shaft (1), characterized in that: An adjusting hole (2) is provided at the central axis position of the boring bar shaft (1), a plurality of boring tool fixing holes (3) are provided at equal intervals on the side wall of the boring bar shaft (1), and the boring tool fixing hole (3) is connected to the adjusting hole (2). A threaded rod (7) is connected to the adjusting hole (2) for limited rotation, and a plurality of sliders (8) are connected to the outer side of the threaded rod (7) by threaded sleeves at equal intervals. A movable clamping block (5) is connected to one side of each of the plurality of sliders (8), and a fixed clamping block (4) is provided on the inner top wall of each of the plurality of boring tool fixing holes (3). A connecting block (10) is provided between the fixed clamping block (4) and the movable clamping block (5), and a boring tool (11) is provided at one end of the connecting block (10).

2. A boring bar-shaped boring tool according to claim 1, characterized in that: The top end of the threaded rod (7) is rotationally limited and arranged on the top wall of the adjusting hole (2), and the bottom end of the threaded rod (7) is movably passed through a movable hole (12) provided on the bottom wall of the boring bar shaft (1) and is connected to an adjusting button (9).

3. A boring bar-shaped boring tool according to claim 2, characterized in that: The surface of the adjusting button (9) is provided with rough textures for increasing the friction between the hand and the adjusting button (9).

4. A boring bar-shaped boring tool according to claim 1, characterized in that: The opposite surfaces of the fixed pressing block (4) and the movable pressing block (5) are both connected and provided with rubber sheets (6).

5. A boring bar-shaped boring tool according to claim 1, characterized in that: The cross section of the adjusting hole (2) is rectangular, and the sliding block (8) is connected in a limited sliding manner in the adjusting hole (2).

6. A boring bar-shaped boring tool according to claim 1, characterized in that: The movable pressing block (5) is connected in a limited sliding manner in the boring tool fixing hole (3).

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