Cutter structure for lathe

Abstract

The utility model relates to the field of machining, and discloses a tool structure for a lathe, which comprises a tool bar, a tool bit and fixing bolts, the tool bit is movably inserted into the upper side surface of the tool bar, and the four fixing bolts which are annularly distributed at equal intervals are in threaded connection with the upper end of the side surface of the tool bar. One end of the fixing bolt extends into an inner cavity of the cutter bar to abut against the side face of the cutter head, the lower end of the side face of the cutter bar is fixedly connected with a pressing plate, the bottom of the cutter bar is fixedly connected with a chuck, and the device further comprises a cooling liquid channel and a resistance reducing wide channel. The cooling liquid can directly and uniformly act on a cutting area, cutting heat is rapidly taken away, the cutting temperature is effectively reduced, the cooling effect is remarkably improved, the service life of a cutter is prolonged, and the production cost is reduced. And meanwhile, the design of the resistance reducing wide channel and the arc-shaped cooling liquid through groove ensures that the cooling liquid is uniformly distributed and stably flows in the cutter, and the problems of pressure loss and unsmooth flowing are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of machining, concretely is a tool structure for lathe. BACKGROUND

[0002] In the field of machining, as important processing equipment, the performance of the tool of lathe is directly related to the processing efficiency, processing quality and the service life of the tool, and the tool for lathe is simply called lathe tool, which is used for metal cutting on lathe. They have different shapes, structures and purposes to adapt to different processing needs, and the lathe tool is often subjected to aggravated tool wear due to high temperature in the cutting area during long-time and high-load cutting process, and even causes tool failure, which seriously affects the machining accuracy and production efficiency. In order to solve this problem, the industry has been exploring more effective tool cooling technology.

[0003] In the process of using lathe tool processing, the commonly used cooling method is to spray cooling liquid or gas externally, which can reduce the cutting temperature to a certain extent, but it is often difficult to directly act on the cutting area, and the cooling effect is limited. Although the traditional lathe tool is internally provided with a cooling liquid channel, the design of these channels is often relatively simple, and the cooling liquid flow path is not optimized, resulting in uneven distribution of cooling liquid in the tool interior, which cannot fully cover the cutting area, thereby limiting the cooling effect. Therefore, we propose a tool structure for lathe. UTILITY MODEL CONTENT

[0004] (I) Technical problem solved

[0005] In view of the shortcomings of the prior art, the utility model provides a tool structure for lathe, which solves the above problems.

[0006] (II) Technical scheme

[0007] In order to achieve the above purpose, the utility model provides the following technical scheme: a tool structure for lathe, comprising a tool rod, a tool head and a fixing bolt, the upper side of the tool rod is movably inserted with the tool head, the side surface upper end of the tool rod is threadedly connected with four fixing bolts which are annularly and equidistantly distributed, one end of the fixing bolt extends into the inner cavity of the tool rod and abuts against the side surface of the tool head, the side surface lower end of the tool rod is fixedly connected with a pressing plate, and the bottom of the tool rod is fixedly connected with a chuck, further comprising:

[0008] A cooling liquid channel is arranged on the lower surface of the chuck and extends into the inner cavity of the tool rod, which is used for the circulation of cooling liquid.

[0009] A resistance-reducing wide channel is arranged on the upper surface of the tool rod corresponding to the annular outer ring of the tool head, which is used for atomizing and spraying the transferred cooling liquid.

[0010] Preferably, the cooling liquid channel comprises a cooling liquid inlet, a resistance reduction wide channel, an arc-shaped cooling liquid passage and a confluence groove, the cooling liquid inlet is arranged at the center of the lower surface of the chuck, the cooling liquid inlet extends to the inner cavity of the tool bar, the resistance reduction wide channel is arranged at the upper part of the inner cavity of the tool bar corresponding to the cooling liquid inlet, the arc-shaped cooling liquid passage is arranged at the top of the inner cavity of the tool bar corresponding to the cooling liquid inlet, and the confluence groove is arranged at the upper end of the inner cavity of the tool bar corresponding to the arc-shaped cooling liquid passage.

[0011] Preferably, the resistance reduction wide channel is located on the path of the cooling liquid inlet, and the diameter of the resistance reduction wide channel is twice the diameter of the cooling liquid inlet.

[0012] Preferably, the arc-shaped cooling liquid passage is a cylindrical wall-shaped passage, the lower end of the arc-shaped cooling liquid passage is communicated with the cooling liquid inlet, and the diameter of the arc-shaped cooling liquid passage is greater than the diameter of the resistance reduction wide channel.

[0013] Preferably, the confluence groove is a circular ring-shaped passage, and the number of the guide channels is four, which are annularly and equidistantly distributed at the upper end of the confluence groove.

[0014] Preferably, the side lower end of the atomizing nozzle is provided with a threaded groove, the bottom of the resistance reduction wide channel is fixedly connected with a filter cylinder, the top of the atomizing nozzle is provided with an atomizing nozzle, the bottom of the atomizing nozzle is fixedly connected with a filter cylinder, and the inner cavity of the atomizing nozzle is hollow and communicated with the filter cylinder.

[0015] (Three) beneficial effects

[0016] Compared with the prior art, the utility model provides a tool structure for lathe, has the following beneficial effects:

[0017] 1、 this tool structure for lathe through built -in cooling liquid channel and atomizing spray system, cooling liquid can be more directly, more evenly act on cutting area, rapidly take away the heat generated by cutting, effectively reduce cutting temperature, thereby significantly improve the cooling effect, prolong the service life of tool, reduce production cost.

[0018] 2、 this tool structure for lathe through resistance reduction wide channel and arc-shaped cooling liquid passage, make cooling liquid can be more evenly distributed in the tool, ensure the stability of cooling liquid in the flowing process, avoid the pressure loss and flow not smooth caused by flow rate too fast or resistance too big. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is structure schematic view of the utility model;

[0020] Fig. 2 It is sectional structure schematic view of the utility model;

[0021] Fig. 3 The utility model discloses a schematic diagram of atomizing nozzle.

[0022] In the figure: 1, cutter bar, 2, tool bit, 3, fixed bolt, 4, pressing plate, 5, chuck, 6, atomizing nozzle, 7, cooling liquid inlet, 8, resistance reduction wide channel, 9, arc-shaped cooling liquid channel, 10, confluence groove, 11, guide channel, 12, screw groove, 13, filter cartridge, 14, atomizing nozzle. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figs. 1-3 A tool structure for lathe, including cutter bar 1, tool bit 2 and fixed bolt 3, the upper side of cutter bar 1 is movably inserted with tool bit 2, the upper end of the side of cutter bar 1 is threadedly connected with four fixed bolts 3 that are annularly and equidistantly distributed, one end of fixed bolt 3 extends into the inner cavity of cutter bar 1 and abuts against the side of tool bit 2, the lower end of the side of cutter bar 1 is fixedly connected with pressing plate 4, the bottom of cutter bar 1 is fixedly connected with chuck 5, further comprising:

[0025] Cooling liquid channel, which is arranged on the lower surface of chuck 5 and extends into the inner cavity of cutter bar 1, is used for the circulation of cooling liquid;

[0026] Resistance reduction wide channel 8, which is arranged on the upper surface of cutter bar 1 corresponding to the annular outer ring of tool bit 2, is used for atomizing and spraying the cooling liquid delivered.

[0027] Further, the cooling liquid channel includes cooling liquid inlet 7, resistance reduction wide channel 8, arc-shaped cooling liquid channel 9 and confluence groove 10, the center of the lower surface of chuck 5 is provided with cooling liquid inlet 7, cooling liquid inlet 7 extends into the inner cavity of cutter bar 1, the upper part of the inner cavity of cutter bar 1 corresponding to cooling liquid inlet 7 is provided with resistance reduction wide channel 8, the top of the inner cavity of cutter bar 1 corresponding to cooling liquid inlet 7 is provided with arc-shaped cooling liquid channel 9, and the upper end of the inner cavity of cutter bar 1 corresponding to arc-shaped cooling liquid channel 9 is provided with confluence groove 10.

[0028] Further, resistance reduction wide channel 8 is located on the path of cooling liquid inlet 7, and the diameter of resistance reduction wide channel 8 is twice the diameter of cooling liquid inlet 7. Since the diameter of resistance reduction wide channel 8 is greater than the diameter of cooling liquid inlet 7, this helps to reduce the flow rate of cooling liquid, reduce flow resistance, and make the distribution of cooling liquid more uniform.

[0029] Further, the arc-shaped cooling liquid channel 9 is a cylindrical wall-shaped channel, and the lower end of the arc-shaped cooling liquid channel 9 is connected with the cooling liquid inlet channel 7. The diameter of the arc-shaped cooling liquid channel 9 is larger than the diameter of the resistance-reducing wide channel 8. The cooling liquid enters the arc-shaped cooling liquid channel 9, which is a cylindrical wall-shaped channel with a diameter larger than the diameter of the resistance-reducing wide channel 8, further expanding the flow space of the cooling liquid, which helps the cooling liquid to better cover the cutting area.

[0030] Further, the confluence groove 10 is a circular ring-shaped channel, and the number of the guide channels 11 is four, which are equally distributed in a ring shape at the upper end of the confluence groove 10.

[0031] Further, the side lower end of the atomizing nozzle 6 is provided with a threaded groove 12. The bottom of the resistance-reducing wide channel 8 is fixedly connected with a filter cylinder 13. The top of the atomizing nozzle 6 is provided with an atomizing nozzle 14. The bottom of the atomizing nozzle 6 is fixedly connected with the filter cylinder 13. The inner cavity of the atomizing nozzle 6 is hollow and connected with the filter cylinder 13.

[0032] Working principle: When working, the cooling liquid flows into the tool structure from the cooling liquid inlet channel 7. First, it enters the resistance-reducing wide channel 8. Since the diameter of the resistance-reducing wide channel 8 is larger than the diameter of the cooling liquid inlet channel 7, this helps to reduce the flow rate of the cooling liquid, reduce the flow resistance, and make the cooling liquid more evenly distributed. Then, the cooling liquid enters the arc-shaped cooling liquid channel 9, which is a cylindrical wall-shaped channel with a diameter larger than the diameter of the resistance-reducing wide channel 8, further expanding the flow space of the cooling liquid, which helps the cooling liquid to better cover the cutting area. Then, the cooling liquid flows into the confluence groove 10, which is a circular ring-shaped channel located at the upper end of the arc-shaped cooling liquid channel 9. The confluence groove 10 functions to collect the cooling liquid flowing from the arc-shaped cooling liquid channel 9 and guide it to the atomizing nozzle 6 through the four equally distributed ring-shaped guide channels 11. At the atomizing nozzle 6, the cooling liquid is filtered by the filter cylinder 13 to remove impurities and particulate matter, and then atomized into fine droplets by the atomizing nozzle 14 and sprayed onto the cutting area. This atomizing spraying method can greatly improve the cooling effect of the cooling liquid, because the atomized droplets can more directly act on the cutting area, quickly remove the heat generated during cutting, reduce the cutting temperature, and thus reduce the wear and failure of the tool, improve the machining precision and production efficiency. In general, this lathe tool structure realizes effective cooling of the cutting area through the built-in cooling liquid channel and atomizing spraying system, improves the service life and machining efficiency of the tool.

[0033] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tool structure for a lathe, comprising a tool bar (1), a tool head (2) and a fixing bolt (3), characterized in that: The upper side of the cutter bar (1) is movably inserted with a cutter head (2), the upper end of the side of the cutter bar (1) is threadedly connected with four fixed bolts (3) which are annularly and equidistantly distributed, one end of the fixed bolt (3) extends into the inner cavity of the cutter bar (1) and abuts against the side of the cutter head (2), the lower end of the side of the cutter bar (1) is fixedly connected with a pressing plate (4), the bottom of the cutter bar (1) is fixedly connected with a chuck (5), and the cutter bar (1) further comprises: A cooling liquid channel is arranged on the lower surface of the chuck (5) and extends into the inner cavity of the cutter bar (1) for the flow of cooling liquid; A resistance-reducing wide channel (8) is arranged on the upper surface of the cutter bar (1) corresponding to the annular outer ring of the cutter head (2) for atomizing and spraying the cooling liquid delivered.

2. A tool structure for a lathe according to claim 1, characterized in that: The cooling liquid channel comprises a cooling liquid inlet channel (7), the resistance-reducing wide channel (8), an arc-shaped cooling liquid passage (9) and a confluence groove (10), the center of the lower surface of the chuck (5) is provided with the cooling liquid inlet channel (7), the cooling liquid inlet channel (7) extends into the inner cavity of the cutter bar (1), the upper part of the inner cavity of the cutter bar (1) corresponding to the cooling liquid inlet channel (7) is provided with the resistance-reducing wide channel (8), the top of the inner cavity of the cutter bar (1) corresponding to the cooling liquid inlet channel (7) is provided with the arc-shaped cooling liquid passage (9), and the upper end of the inner cavity of the cutter bar (1) corresponding to the arc-shaped cooling liquid passage (9) is provided with the confluence groove (10).

3. A tool structure for a lathe according to claim 2, characterized in that: The resistance-reducing wide channel (8) is located on the path of the cooling liquid inlet channel (7), and the diameter of the resistance-reducing wide channel (8) is twice the diameter of the cooling liquid inlet channel (7).

4. The tool structure for a lathe according to claim 2, wherein: The arc-shaped cooling liquid passage (9) is a cylindrical wall-shaped passage, the lower end of the arc-shaped cooling liquid passage (9) is in communication with the cooling liquid inlet channel (7), and the diameter of the arc-shaped cooling liquid passage (9) is greater than the diameter of the resistance-reducing wide channel (8).

5. The tool structure for a lathe according to claim 2, wherein: The confluence groove (10) is a circular annular passage, and the number of the guide channels (11) is four, which are annularly and equidistantly distributed on the upper end of the confluence groove (10).

6. The tool structure for a lathe according to claim 2, wherein: The side lower end of the atomizing nozzle (14) of the atomizing nozzle (6) is provided with a threaded groove (12), the bottom of the resistance-reducing wide channel (8) is fixedly connected with a filter cylinder (13), the top of the atomizing nozzle (6) is provided with an atomizing nozzle (14), the bottom of the atomizing nozzle (6) is fixedly connected with the filter cylinder (13), and the inner cavity of the atomizing nozzle (6) is hollow and in communication with the filter cylinder (13).

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