Efficient mechanical cutting machining device

Abstract

The utility model discloses an efficient mechanical cutting machining device which comprises a cutter bar part, a cutter pedestal and a tightening nut, the lower portion of the cutter bar part is sequentially provided with a cutter rest limiting part and a thread part, the cutter rest limiting part is provided with a limiting long groove in the circumferential direction, and the inner circumferential face of the cutter pedestal is provided with a protruding strip connected with the limiting long groove in a sliding mode. A side face groove is formed in the circumferential direction of the cutter table base, at least three blades are fixed to the vertical face of the side face groove through screws, an annular protrusion is arranged on the upper surface of the cutter table base, a first spring is arranged on the inner side of the annular protrusion, the upper end of the first spring abuts against the lower end of the cutter rod part, and a tightening nut is arranged on the threaded part. A spring jacking assembly is arranged at the upper end of the tightening nut and comprises a jacking ring, a second spring and a lower ring. And a plurality of wear-resistant blades are designed, so that frequent replacement of the blades is avoided, the time for sharpening the knife is saved, the processing efficiency is improved, and the process difficulty of scraping the back surface is reduced in the process method.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting processing, in particular to an efficient mechanical cutting processing device. Background Technique

[0002] In the production process of ball mills, large gears are important components. When manufacturing large gears, drilling is required. The drilling design enables the direct fixation of the gear center hole and the bearing, ensuring that the gear can directly and stably transmit power or torque. This avoids the unstable operation of the device caused by lateral vibration, strengthens the structural strength of the gear, reduces energy loss, and thus improves the transmission efficiency. At the same time, drilling helps the large gear evenly distribute stress during operation, reduces the stress concentration phenomenon, thereby improving the durability and service life of the gear, enhancing the smoothness of the gear during work deceleration, reducing the influence of rotational inertia, and making the operation of the entire system more stable. Among them, the drilling position in the large gear requires counter-boring surface machining. In the traditional counter-boring surface (scraping the back surface) machining process, traditional fixtures and high-speed steel tools are used. The tool contacts the workpiece rigidly. When the force is unstable, due to the low hardness of the high-speed steel tool and single-edge cutting, the tool needs to be sharpened and reinstalled every few holes are processed, resulting in extremely low processing efficiency, wasting tools, causing delays in the delivery of large gears, and increasing production costs.

[0003] Chinese Patent Application No. 202320272748.1, a counter-boring surface machining tool, includes a tool shank, a tool head, and a cutting blade; wherein, the upper end of the tool shank is fixedly arranged on the processing equipment, the lower end is provided with a clamping part, and the clamping part is provided with a clamping groove; multiple cutting blades are arranged at intervals along the circumferential direction on the tool head. When cutting, the tool head also contacts the workpiece rigidly, which easily causes serious wear of the tool head, short service life, increases the time for sharpening the tool, and thus affects the operation efficiency; similarly, Chinese Patent Application No. 202322589926.6 discloses a counter-boring surface machining tool, including a tool shank, a tool head, a transverse screw, and a longitudinal screw, which also has the above problems. Moreover, multiple screws are used to fix the tool head, and the disassembly of the tool head is cumbersome, unable to meet the requirements in actual use. Therefore, there is an urgent need for improved technologies in the market to solve the above problems. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the existing defects, provide an efficient mechanical cutting processing device, design multiple wear-resistant cutting blades, avoid frequent replacement of cutting blades, save the time for sharpening the tool, improve the processing efficiency, reduce the process difficulty of scraping the back surface in the process method, reduce the production cost, and generally greatly improve the work efficiency, and can effectively solve the problems in the background technique.

[0005] To achieve the above object, the present utility model provides the following technical solutions: An efficient mechanical cutting and machining device, comprising a tool shank portion, a tool rest base, and a tightening nut. The lower part of the tool shank portion is successively provided with a tool rest limiting portion and a threaded portion. The circumferential direction of the tool rest limiting portion is provided with limiting long grooves, and the inner circumferential surface of the tool rest base is provided with ridges that are slidably connected to the limiting long grooves. The circumferential direction of the tool rest base is provided with side grooves, and a blade is fixed on the vertical surface of the side grooves by screws. At least three blades are provided. The upper surface of the tool rest base is provided with an annular protrusion, and a first spring is arranged inside the annular protrusion. The upper end of the first spring abuts against the lower end of the tool shank portion, and a tightening nut is arranged on the threaded portion.

[0006] Further, a spring tightening assembly is arranged at the upper end of the tightening nut. The spring tightening assembly includes a tightening ring, a second spring, and a lower ring. The second spring is arranged between the tightening ring and the lower ring. The lower ring is fixed on the tightening nut, and the tightening ring abuts against the tool rest base. A hand rod is arranged on the outer side surface of the tightening nut.

[0007] Further, a conical portion and a tail plate portion are arranged on one side above the tool shank portion. A positioning groove is arranged on the surface of the tool shank portion. The tail plate portion is welded on the conical portion and is concentric with the conical portion.

[0008] Further, the conical portion, the tool shank portion, the tool rest limiting portion, and the threaded portion are processed from a single round steel blank.

[0009] Further, the tool rest limiting portion is slidably connected to the tool rest base. At least two limiting long grooves are provided, and the ridges correspond to the limiting long grooves one by one. The height of the blade is higher than the upper surface of the tool rest base.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] 1. This structure not only realizes the convenient disassembly of the tool rest base. During cutting, the spring tightening assembly plays an elastic supporting role for the tool rest base, avoiding the rapid wear of the blade caused by the hard contact between the blade and the workpiece due to the too fast upward speed of the tool shank portion. This structure can effectively protect the blade and extend the service life of the blade.

[0012] 2. Designing multiple wear-resistant blades avoids the frequent replacement of blades, saves the time for grinding the blades, improves the processing efficiency, reduces the process difficulty of scraping the back surface in the process method, reduces the production cost, and generally greatly improves the working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is a schematic structural diagram of the present utility model with the tool rest base removed;

[0015] Figure 3 This is a schematic structural diagram of the top-tightening component of the present utility model;

[0016] Figure 4 This is a schematic structural diagram of the workpiece installation position of the present utility model;

[0017] Figure 5 This is a schematic structural diagram of the cooperation between the rib and the limiting long groove of the present utility model.

[0018] In the figure: 1 tail plate part, 2 conical part, 3 tool bar part, 4 first spring, 5 annular protrusion, 6 spring top-tightening component, 7 hand lever, 8 tightening nut, 9 side groove, 10 blade, 11 tool rest seat, 12 positioning groove, 13 tool rest limiting part, 14 limiting long groove, 15 threaded part, 16 top-tightening ring, 17 lower ring, 18 second spring, 19 rib. Specific embodiments

[0019] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0020] Please refer to Figures 1-5, the utility model provides a technical solution: an efficient mechanical cutting processing device, which includes a tool shank part 3, a tool rest base 11 and a tightening nut 8. The lower part of the tool shank part 3 is successively provided with a tool rest limiting part 13 and a threaded part 15. The circumferential direction of the tool rest limiting part 13 is provided with a limiting long groove 14, and the inner circumferential surface of the tool rest base 11 is provided with a rib 19 that is slidably connected to the limiting long groove 14. Specifically, the tool rest base 11 passes through from the lower end of the threaded part 15 to the tool rest limiting part 13, aligning the rib 19 with the limiting long groove 14. Through the cooperation of the limiting long groove 14 and the limiting long groove 14, the tool rest base 11 cannot rotate. When the tool shank part 3 rotates at a high speed, it drives the tool rest base 11 to rotate to cut the workpiece. The circumferential direction of the tool rest base 11 is provided with a side groove 9, and a cutting blade 10 is fixed on the vertical surface of the side groove 9 by screws. At least three cutting blades 10 are provided. The tool rest base 11 can also be provided with a limiting groove to further limit the cutting blade 10, making its fixing structure safer. The upper surface of the tool rest base 11 is provided with an annular protrusion 5, and a first spring 4 is arranged inside the annular protrusion 5. The upper end of the first spring 4 abuts against the lower end of the tool shank part 3. The upper end of the first spring 4 can be fixed to the lower end of the tool shank part 3. A tightening nut 8 is arranged on the threaded part 15. The tightening nut 8 plays a role in restricting the lower end of the tool rest base 11. Cooperating with the first spring 4, the tool rest base 11 tightly abuts against the tool rest base 11, preventing the tightening nut 8 from loosening due to vibration or other reasons, ensuring the fixed position of the tool rest base 11. Another function of the first spring 4 is to make the tool rest base 11 have a certain upward buffer space to avoid accidentally hitting the tool rest base 11, making the structure safer.

[0021] The upper end of the tightening nut 8 is provided with a spring tightening component 6. The spring tightening component 6 includes a tightening ring 16, a second spring 18 and a lower ring 17. The second spring 18 is arranged between the tightening ring 16 and the lower ring 17. The lower ring 17 is fixed on the tightening nut 8, and the tightening ring 16 abuts against the tool rest base 11. During cutting, the spring tightening component 6 plays an elastic supporting role for the tool rest base 11, avoiding the rapid wear of the cutting blade 10 caused by the tool shank part 3 moving upward too fast and the cutting blade 10 making hard contact with the workpiece. This structure can effectively protect the cutting blade 10 and extend the service life of the cutting blade. The outer side surface of the tightening nut 8 is provided with a hand rod 7. Since the tightening nut 8 is subjected to a downward force, the tightening nut 8 will not loosen automatically. The hand rod 7 is convenient for manually rotating the tightening nut 8, and the tool rest base 11 can be disassembled without tools.

[0022] One side above the tool shank part 3 is provided with a conical part 2 and a tail plate part 1. The surface of the tool shank part 3 is provided with a positioning groove 12. The tail plate part 1 is welded to the conical part 2 and is concentric with the conical part 2. The tool shank part 3 is fixed on the equipment through the tail plate part 1 and the conical part 2. The positioning groove 12 assists in fixing the tool shank and replacing the tool shank when completing the production task. The connection part with the equipment is an existing conventional structure.

[0023] The cone part 2, the tool shank part 3, the tool rest limiting part 13 and the thread part 15 are processed from a single round steel blank, and are of an integral structure to ensure the reliable structure of the tool shank.

[0024] The tool rest limiting part 13 is slidably connected to the tool rest base 11. At least two limiting long grooves 14 are provided, and the convex strips 19 correspond to the limiting long grooves 14 one by one. The height of the blade 10 is higher than the upper surface of the tool rest base 11.

[0025] The lower end of the tool shank part 3 passes through the workpiece. The blade 10 is fixed to the tool rest base 11 by fixing bolts. The tool rest base 11 is fixed to the tool rest limiting part 13 by tightening the nut 8 and the spring pressing assembly 6. By rotating the tool shank part 3, the blade 10 on the tool rest base 11 is driven to process the workpiece until the technical requirements are met.

[0026] The above shows and describes the basic principles, main features and advantages of the present invention. Without departing from the spirit and scope of the present invention, the present invention has various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. An efficient mechanical cutting device, comprising a tool shank portion (3), a tool rest base (11) and a tightening nut (8), characterized in that: The lower part of the tool shank portion (3) is successively provided with a tool rest limiting portion (13) and a threaded portion (15). A limiting long groove (14) is provided in the circumferential direction of the tool rest limiting portion (13). A rib (19) slidably connected to the limiting long groove (14) is provided on the inner circumferential surface of the tool rest base (11). A side groove (9) is provided in the circumferential direction of the tool rest base (11). A cutting blade (10) is fixed to the vertical surface of the side groove (9) by screws. At least three cutting blades (10) are provided. An annular protrusion (5) is provided on the upper surface of the tool rest base (11). A first spring (4) is provided inside the annular protrusion (5). The upper end of the first spring (4) abuts against the lower end of the tool shank portion (3). A tightening nut (8) is provided on the threaded portion (15).

2. An efficient mechanical cutting device according to claim 1, wherein: A spring pressing assembly (6) is provided at the upper end of the tightening nut (8). The spring pressing assembly (6) includes a pressing ring (16), a second spring (18) and a lower ring (17). The second spring (18) is provided between the pressing ring (16) and the lower ring (17). The lower ring (17) is fixed to the tightening nut (8). The pressing ring (16) abuts against the tool rest base (11). A hand lever (7) is provided on the outer side surface of the tightening nut (8).

3. An efficient mechanical cutting and machining device according to claim 1, characterized in that: A conical portion (2) and a tail plate portion (1) are provided on one side above the tool shank portion (3). A positioning groove (12) is provided on the surface of the tool shank portion (3). The tail plate portion (1) is welded to the conical portion (2) and the tail plate portion (1) is concentric with the conical portion (2).

4. An efficient mechanical cutting device according to claim 3, characterized in that: The conical portion (2), the tool shank portion (3), the tool rest limiting portion (13) and the threaded portion (15) are machined from a single round steel blank.

5. An efficient mechanical cutting device according to claim 1, characterized in that: The tool rest limiting portion (13) is slidably connected to the tool rest base (11). At least two limiting long grooves (14) are provided. The ribs (19) correspond to the limiting long grooves (14) one by one. The height of the cutting blade (10) is higher than the upper surface of the tool rest base (11).

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