Composite rotary cutting tool bar

Abstract

The utility model discloses a composite rotary cutting tool bar which comprises a connecting rod body, a tool bit is arranged on the connecting rod body, a first blade is arranged on the surface of one side of the tool bit, a connecting block is connected to the surface of the tool bit and located at the position symmetrical to the first blade in a limiting mode, a connecting groove is formed in the surface of the connecting block, and a second blade is arranged in the connecting groove. A rack is arranged on the side wall of the connecting block, a gear is connected to the surface of the rack in a meshed mode, a rotating shaft fixedly penetrates through the center of the gear and penetrates through the surface of the tool bit in a limited rotating mode, and a worm gear fixedly sleeves the portion, located on the other side face of the tool bit, of one end of the rotating shaft. By means of the structure, lifting adjustment of the second blade and adjustment of the relative position of the first blade arranged in a limiting and fixing mode in the vertical direction can be rapidly achieved, and meanwhile the second blade with the position adjusted can be directly limited and fixed through the self-locking function generated when the worm gear and the worm are connected in a meshed mode. The practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control tool bars, in particular to a composite rotary cutting tool bar. Background Art

[0002] The CNC tool bar is a wedge connecting the mechanical spindle with the tool and other accessory tools. It is an extended tool bar for machine tools. It is a tool bar for machining centers. It is installed on the spindle of a CNC lathe or a common lathe. However, the existing device has certain problems when used and still needs to be continuously improved.

[0003] For example, a composite rotary cutting tool rod disclosed in the utility model with authorization announcement number CN220372228U comprises a first blade, a positioning column and a second blade. A mounting groove is provided on one side of the top of the cutter head, the positioning column is fixedly connected to the inside of the mounting groove, a through hole is provided inside the first blade, the first blade is threadedly connected to the inside of the mounting groove by a screw, a slide groove is provided on the top of the cutter head and on one side of the mounting groove, the inside of the slide groove is slidably connected with the second blade, a first elliptical groove is provided on the top of the second blade, a first threaded hole is provided inside the slide groove, the second blade is threadedly connected to the inside of the slide groove by a screw, and by arranging two blades and being able to adjust the relative position between the two blades, it is possible to simultaneously process the end face, inner hole and outer circle, thereby increasing the number of work stations and reducing the number of tool changes.

[0004] When in use, the device adjusts the relative position of the first blade and the second blade in vertical height, thereby processing various holes such as end faces, inner holes, and outer circles. However, when adjusting the relative position of the first blade and the second blade, it is necessary to screw and loosen the screw each time to release the fixation of the second blade by the pressure block, and then the position can be moved up and down. After adjustment, the tightening screw is screwed in again to fix the position of the second blade through the pressure block. This adjustment method requires screwing and rotating the screw multiple times, which causes certain inconvenience to the staff in the hole opening work and affects the work efficiency. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the utility model provides a composite rotary cutting tool rod, which can solve the problem that when adjusting the relative position of the first blade and the second blade, it is necessary to screw and loosen the screw each time to release the fixation of the second blade by the pressure block, and then the position can be moved up and down. After adjustment, the tightening screw is screwed in again to fix the position of the second blade through the pressure block. This adjustment method requires screwing and rotating the screw multiple times, which causes certain inconvenience to the staff in the hole opening work and affects the work efficiency. Technical problem.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a composite rotary cutting tool rod, comprising a connecting rod body, a cutter head is arranged on the connecting rod body, one side surface of the cutter head is arranged on a first blade, a connecting block is limitedly connected to the surface of the cutter head and located at a symmetrical position of the first blade, a connecting groove is opened on the surface of the connecting block, a second blade is arranged in the connecting groove, a rack is arranged on the side wall of the connecting block, a gear is meshingly connected to the surface of the rack, a rotating shaft is fixedly penetrated at the center position of the gear, the rotating shaft is limitedly rotated and penetrates through the surface of the cutter head, one end of the rotating shaft is fixedly sleeved and connected to a worm gear at the other side of the cutter head, and a worm is meshingly connected to one side of the worm gear.

[0007] As a preferred technical solution of the utility model, a rotating rod is fixedly inserted at the central axis position of the worm, and the two ends of the rotating rod are connected to the surface of the cutter head for limited rotation through two connecting seats. One end of the rotating rod is movably inserted through the surface of the connecting seat and is connected to an adjusting button for rotating the rotating rod.

[0008] As a preferred technical solution of the utility model, the side wall 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, the first blade is fixedly connected to the cutter head by screws, and the second blade is fixedly connected to the connecting block by screws.

[0010] As a preferred technical solution of the utility model, the rear wall of the connecting block is connected to the surface of the cutter head in a limited sliding manner.

[0011] As a preferred technical solution of the utility model, a threaded column is arranged at the bottom end of the cutter head, and a mounting groove which is threadedly screwed with the threaded column is arranged at the top end of the connecting rod body.

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

[0013] The meshing connection between the worm wheel and the worm screw can realize the rotation adjustment of the rotating shaft, the rotation adjustment of the gear is driven by the rotation adjustment of the rotating shaft, and the lifting and lowering adjustment of the connecting block and the second blade arranged in the connecting groove on the surface of the connecting block can be realized through the meshing connection between the rotation adjustment gear and the rack. The setting of this structure can not only quickly realize the lifting and lowering adjustment of the second blade and the adjustment of the relative position in the vertical direction of the first blade formed by the limit fixing, but also the self-locking function of the meshing connection between the worm wheel and the worm screw can directly limit and fix the second blade after the adjusted position, thereby improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front disassembled three-dimensional structure of the utility model;

[0015] Figure 2 This is a partial first-view stereoscopic structural diagram of the utility model;

[0016] Figure 3 This is a schematic diagram of a partial second-angle stereoscopic structure of the utility model;

[0017] Figure 4 This is a schematic diagram of a disassembled three-dimensional structure of the local structure of the utility model;

[0018] Among them: 1. connecting rod body; 2. cutter head; 3. mounting groove; 4. threaded column; 5. first blade; 6. second blade; 7. connecting block; 8. connecting groove; 9. rack; 10. gear; 11. rotating shaft; 12. worm wheel; 13. worm; 14. rotating rod; 15. connecting seat; 16. adjusting button. 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 composite rotary cutting tool rod, a cutter head 2 is arranged on a connecting rod body 1, and then a first blade 5 is arranged on the surface of one side of the cutter head 2, and then a connecting block 7 is limitedly connected on the surface of the cutter head 2 and at a symmetrical position of the first blade 5, and a connecting groove 8 is opened on the surface of the connecting block 7, and then a second blade 6 is arranged in the connecting groove 8, and at the same time, a rack 9 is arranged on the side wall of the connecting block 7, and then a gear 10 is meshed and connected on the surface of the rack 9, and a rotating shaft 11 is fixedly penetrated at the center position of the gear 10, and then the rotating shaft 11 is limitedly rotated and penetrated through the surface of the cutter head 2, and then one end of the rotating shaft 11 and located at the cutter head A worm wheel 12 is fixedly sleeved on the other side, and a worm 13 is meshedly connected to one side of the worm wheel 12, and then a rotating rod 14 is fixedly penetrated at the central axis position of the worm 13, and the two ends of the rotating rod 14 are connected to the surface of the cutter head 2 through two connecting seats 15 for limited rotation, and one end of the rotating rod 14 is movably penetrated through the surface of the connecting seat 15 and connected to an adjusting button 16, and the rotating rod 14 can be rotated and adjusted by the setting of the adjusting button 16, and finally, a rough texture is provided on the side wall of the adjusting button 16, and the friction between the hand and the adjusting button 16 can be increased by the setting of the rough texture, so as to facilitate the rotation and adjustment of the adjusting button 16;

[0022] When the position of the second blade 6 is lifted and lowered, the adjusting knob 16 can be used to adjust the rotating rod 14 and the worm 13 fixedly sleeved on the outer side of the rotating rod 14, and then the rotating and adjusting worm 13 is meshed with the worm wheel 12 to realize the rotation adjustment of the rotating shaft 11, and the rotating and adjusting rotating shaft 11 drives the gear 10 to rotate and mesh with the rack 9, so as to realize the lifting and lowering adjustment of the connecting block 7 and the second blade 6 arranged in the connecting groove 8 opened on the surface of the connecting block 7, and the meshing of the worm wheel 12 and the worm 13 has a self-locking function, so that the position of the second blade 6 that is lifted and lowered is fixed, and the relative position of the second blade 6 and the first blade 5 in the vertical direction is changed. The left first blade 5 is high and the right second blade 6 is low, which is a positive blade, and the opposite is a reverse blade. The first blade 5 and the second blade 6 on both sides are flush, which is an intermediate blade. By adjusting the position of the second blade 6, the end face, the inner hole, and the outer circle can be processed at the same time, increasing the workstation and reducing the number of tool changes.

[0023] As a further implementation of this embodiment, Figure 1-4 As shown, the first blade 5 is fixedly connected to the cutter head 2 by screws, and the second blade 6 is also fixedly set in the connecting groove 8 opened on the surface of the connecting block 7 by screws, and a limiting block with a T-shaped cross section is set on the rear wall of the connecting block 7, and a limiting sliding connection is made between the limiting block and the surface of the cutter head 2, and a threaded column 4 is set at the bottom end of the cutter head 2, and then a mounting groove 3 is opened at the top end of the connecting rod body 1 to be threadedly screwed with the threaded column 4, so as to realize the connection between the connecting rod body 1 and the cutter head 2;

[0024] Specific working principle:

[0025] When machining mechanical parts, firstly, the cutter head 2 is connected and fixed to the connecting rod body 1 by screwing the threaded column 4 and the mounting groove 3, and then the adjusting knob 16 is used to adjust the rotating rod 14 and the worm 13 fixedly sleeved on the outer side of the rotating rod 14, and the rotation adjustment of the rotating shaft 11 is achieved by the meshing of the rotating worm 13 and the worm wheel 12, and the rotation adjustment of the rotating shaft 11 is driven by the rotating shaft 11 to rotate and mesh with the rack 9, so as to achieve the connection block 7 and the second cutter head arranged in the connection groove 8 opened on the surface of the connection block 7. The blade 6 can be raised and lowered and adjusted, and the meshing of the worm wheel 12 and the worm 13 has a self-locking function, so that the position of the second blade 6 that is raised and lowered is fixed, and the relative position of the second blade 6 and the first blade 5 in the vertical direction is changed. The left first blade 5 is high and the right second blade 6 is low, which is a positive knife, and the opposite is a negative knife. The first blade 5 and the second blade 6 on both sides are flush, which is an intermediate knife. By adjusting the relative position of the second blade 6 and the first blade 5, the end face, inner hole and outer circle can be processed at the same time, the work station is increased, and the number of tool changes is reduced.

[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 composite rotary cutting tool bar, comprising a connecting rod body (1), characterized in that: A cutter head (2) is arranged on the connecting rod body (1), and a first blade (5) is arranged on one side surface of the cutter head (2). A connecting block (7) is limitedly connected to the surface of the cutter head (2) and is located at a symmetrical position of the first blade (5). A connecting groove (8) is provided on the surface of the connecting block (7), and a second blade (6) is arranged in the connecting groove (8). A rack (9) is arranged on the side wall of the connecting block (7), and a gear (10) is meshingly connected to the surface of the rack (9). A rotating shaft (11) is fixedly penetrated at the center position of the gear (10), and the rotating shaft (11) is limitedly rotatably penetrated through the surface of the cutter head (2). A worm gear (12) is fixedly sleeved and connected to one end of the rotating shaft (11) and is located on the other side of the cutter head (2), and a worm gear (13) is meshingly connected to one side of the worm gear (12).

2. A composite rotary cutting tool bar according to claim 1, characterized in that: A rotating rod (14) is fixedly inserted at the central axis position of the worm (13), and the two ends of the rotating rod (14) are connected to the surface of the cutter head (2) through two connecting seats (15) for limited rotation. One end of the rotating rod (14) is movably inserted through the surface of the connecting seat (15) and is connected to an adjusting button (16) for adjusting the rotation of the rotating rod (14).

3. A composite rotary cutting tool bar according to claim 2, characterized in that: The side wall of the adjusting button (16) is provided with rough textures for increasing the friction between the hand and the adjusting button (16).

4. A composite rotary cutting tool bar according to claim 1, characterized in that: The first blade (5) is fixedly connected to the blade head (2) via screws, and the second blade (6) is fixedly connected to the connecting block (7) via screws.

5. The composite rotary cutting tool bar according to claim 1, characterized in that: The rear wall of the connection block (7) is connected to the surface of the cutter head (2) in a limited sliding manner.

6. A composite rotary cutting tool bar according to claim 1, characterized in that: A threaded column (4) is provided at the bottom end of the cutter head (2), and a mounting groove (3) is provided at the top end of the connecting rod body (1) and is threadably connected to the threaded column (4).

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