High-strength PCD double-edge milling cutter

Abstract

The utility model belongs to the technical field of PCD (Poly Crystal Diamond) milling cutters, particularly relates to a high-strength PCD double-edged milling cutter, and aims to solve the problem that after cutter teeth of the existing partial PCD milling cutters are abraded, the milling cutter is of an integrated structure, so that only the whole milling cutter can be replaced during replacement, the following scheme is provided: the high-strength PCD double-edged milling cutter comprises a cutter bar, the water storage tank is fixedly mounted on the outer side of the cutter bar; the cooling assembly is connected with the water storage tank; a connecting rod is fixedly installed above the cutter bar, the outer side of the connecting rod is sleeved with a fixing assembly, and the fixing assembly and the connecting rod are in threaded connection with a cutter tooth sleeve. The threaded connection effect of the cutter tooth sleeve and the arc-shaped plate is achieved through the arc-shaped plate of the fixing assembly and the inserting plate located at the cutter tooth sleeve, the fixing between the cutter tooth sleeve and the cutter bar is achieved through the fixing of the arc-shaped plate and the inserting plate, and therefore the connection between the cutter tooth sleeve and the cutter bar is achieved through simple threaded connection. Therefore, the integral milling cutter can be detachably mounted.

Description

Technical Field

[0001] The utility model relates to a PCD double-edge milling cutter, in particular to a high-strength PCD double-edge milling cutter, belonging to the technical field of PCD milling cutters. Background Art

[0002] PCD milling cutter is a superhard tool, which is widely used in aviation, aerospace, automobile, electronics, graphite processing and other fields, especially in the processing of non-ferrous metal materials and non-metallic materials. When processing these materials, PCD milling cutter not only has high processing efficiency and good processing quality, but also has a long service life.

[0003] In the prior art, a high-speed chip removal double-edged milling cutter disclosed in announcement number CN219254255U includes a milling cutter, the top of which is fixed to a milling cutter fixing seat, the top of which is connected to a shank, and fast-flowing cooling oil cools the milling cutter while flushing along the cutter groove, thereby quickly flushing out the chips in the cutter groove using a higher flow rate.

[0004] However, in actual use, during the use of the above-mentioned high-speed chip removal double-edged milling cutter, although the tool groove can be flushed and cooled by cooling oil, the outer teeth of the milling cutter itself will continue to wear during processing, and the top of the milling cutter is fixed to the milling cutter fixing seat. Therefore, when the teeth are worn to a certain extent, the high-speed chip removal double-edged milling cutter needs to replace the top of the milling cutter and the milling cutter fixing seat at the same time, which will waste the milling cutter material during replacement. Utility Model Content

[0005] The utility model provides a high-strength PCD double-edge milling cutter to solve the problem that during the use of the high-speed chip removal double-edge milling cutter, although the tool groove can be flushed and cooled by cooling oil, the outer teeth of the milling cutter itself will continue to wear during processing, and the top of the milling cutter is fixed to the milling cutter fixing seat. Therefore, when the teeth are worn to a certain extent, the high-speed chip removal double-edge milling cutter needs to replace the top of the milling cutter and the milling cutter fixing seat at the same time, which will waste the milling cutter material during replacement.

[0006] The utility model achieves the above-mentioned purpose through the following technical scheme: a high-strength PCD double-edge milling cutter, comprising a cutter bar, a water storage tank fixedly installed on the outside of the cutter bar, and a cooling assembly connected to the water storage tank, a connecting rod fixedly installed above the cutter bar, a fixing assembly is sleeved on the outside of the connecting rod, and a cutter tooth sleeve is threadedly connected between the fixing assembly and the connecting rod;

[0007] The fixing assembly includes two symmetrically arranged arc plates, the arc plates are fixedly mounted on the outside of the knife rod, the inner side of the arc plates is threadedly connected with an insert plate, the insert plate is fixedly mounted on the lower end of the knife tooth sleeve, and a connecting rod is fixedly mounted with a threaded rod on the inner side of the insert plate, the top of the threaded rod passes through the knife tooth sleeve, a clamping block is rotatably mounted on the inner side of the arc plate through a rotating shaft, and a clamping groove matching the clamping block is opened at the arc plate at the clamping block, a pulling plate is arranged at one end of the clamping groove away from the clamping block, a tension spring is fixedly mounted on the inner side of the pull plate, and the other end of the tension spring is fixedly mounted on the clamping block.

[0008] As a further solution of the utility model: the cutter sleeve is provided with a thread groove matching the threaded rod at the threaded rod, the thread groove is provided on the cutter sleeve, and a limit groove matching the clamping block is provided at the connection between the cutter sleeve and the clamping block.

[0009] As a further solution of the utility model: the cooling assembly includes a cooling pipe, which is arranged inside the knife rod and the connecting rod. The cooling pipe is an L-shaped structure, and one end of the cooling pipe passes through the threaded rod and extends to the inside of the knife tooth sleeve. A diverter cavity is opened at the connection between the knife tooth sleeve and the cooling pipe, and the diverter cavity is opened inside the knife tooth sleeve. A connecting pipe is fixedly installed on the top of the water tank, and the water tank and the cooling pipe are connected to each other.

[0010] As a further solution of the utility model: the blade sleeve is provided with a diversion port at the end of the diversion cavity, and the diversion port is provided on the surface of the blade sleeve.

[0011] As a further solution of the utility model: the knife tooth sleeve includes upper teeth and lower teeth, the lower teeth are fixedly connected below the upper teeth, the upper teeth are multiple groups of spiral straight teeth, and the straight teeth are spirally distributed on the top of the knife tooth sleeve.

[0012] As a further solution of the utility model: the lower teeth include thread teeth, the thread teeth are spirally arranged on the outside of the cutter tooth sleeve, and spiral straight teeth are spirally arranged in the middle of the spiral teeth.

[0013] The beneficial effects of the utility model are:

[0014] 1. The blade sleeve is threadedly installed on the outside of the threaded rod and rotated continuously to insert the plug plate at the bottom of the blade sleeve into the threaded rod and the arc plate, and the threaded installation of the blade sleeve as a whole is realized through the threaded rod, the arc plate and the connecting rod. When the blade sleeve is inserted into the arc plate, the blade sleeve will squeeze the block, and as the blade sleeve is extended, the block will bounce to the limit groove to fix the blade sleeve;

[0015] 2. The cooling water is collected through the water storage tank by the provided connecting pipe, and is transmitted to the cooling pipe through the water storage tank. The cooling water is transmitted to the diversion cavity at the cutter tooth sleeve through the cooling pipe, and flows out of the surface of the cutter tooth sleeve through the flow port, thereby cooling the surface of the cutter tooth sleeve.

[0016] 3. The PCD milling cutter can achieve various processing effects during processing by setting the upper and lower teeth. The upper teeth are used for rough processing during processing by the milling cutter, such as preliminary cutting and drilling of the workpiece, while the threaded teeth and spiral straight teeth at the lower teeth are used for further processing of the workpiece, thereby reducing the generation of shavings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the blade sleeve and the fixing assembly of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the upper part of the knife bar of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the side surface of the utility model;

[0021] Figure 5 For this utility model Figure 4 Schematic diagram of the local enlarged structure at point A in the middle.

[0022] In the figure: 1. knife bar; 2. water storage tank; 3. cooling assembly; 301. cooling pipe; 302. diversion chamber; 303. diversion port; 4. connecting rod; 5. fixing assembly; 501. arc plate; 502. plug plate; 503. threaded rod; 504. block; 505. pull plate; 506. tension spring; 6. knife tooth sleeve; 7. limit groove; 8. upper tooth; 9. lower tooth; 10. spiral straight tooth; 11. connecting pipe. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Embodiment 1

[0024] like Figures 1 to 5As shown, a high-strength PCD double-edged milling cutter comprises a tool bar 1, a water storage tank 2 fixedly mounted on the outside of the tool bar 1 and a cooling assembly 3 connected to the water storage tank 2, a connecting rod 4 fixedly mounted on the top of the tool bar 1, a fixing assembly 5 is sleeved on the outside of the connecting rod 4, and a cutter tooth sleeve 6 is threadedly connected between the fixing assembly 5 and the connecting rod 4;

[0025] The fixing assembly 5 includes two symmetrically arranged arc plates 501, which are fixedly installed on the outer side of the knife rod 1, and the inner side of the arc plate 501 is threadedly connected with an insert plate 502, and the insert plate 502 is fixedly installed on the lower end of the knife tooth sleeve 6, and the connecting rod 4 is located on the inner side of the insert plate 502 and fixedly installed with a threaded rod 503, and the top of the threaded rod 503 passes through the knife tooth sleeve 6, and a clamping block 504 is installed on the inner side of the arc plate 501 through a rotating shaft, and the arc plate 501 is provided with a clamping groove matching the clamping block 504 at the clamping block 504, and a pull plate 505 is provided at one end of the clamping groove away from the clamping block 504, and a tension spring 506 is fixedly installed on the inner side of the pull plate 505, and the other end of the tension spring 506 is fixedly installed on the clamping block 504.

[0026] The cutter sleeve 6 is provided with a thread groove matching the thread rod 503 at the thread rod 503 . The thread groove is provided on the cutter sleeve 6 . A limiting groove 7 matching the clamping block 504 is provided at the connection between the cutter sleeve 6 and the clamping block 504 . Embodiment 2

[0027] In addition to all the technical features of the first embodiment, this embodiment also includes:

[0028] The cooling assembly 3 includes a cooling pipe 301, which is arranged inside the knife rod 1 and the connecting rod 4. The cooling pipe 301 is an L-shaped structure, and one end of the cooling pipe 301 passes through the threaded rod 503 and extends to the inside of the knife tooth sleeve 6. A diversion chamber 302 is provided at the connection between the knife tooth sleeve 6 and the cooling pipe 301. The diversion chamber 302 is provided inside the knife tooth sleeve 6. The knife tooth sleeve 6 is provided with a diversion port 303 at the end of the diversion chamber 302. The diversion port 303 is provided on the surface of the knife tooth sleeve 6. A connecting pipe 11 is fixedly installed on the top of the water tank 2, and the water tank 2 and the cooling assembly 3 are connected to each other. The cooling water inside the water tank 2 can be transmitted to the inside of the diversion chamber 302 of the knife tooth sleeve 6 through the cooling pipe 301, and is transmitted to the diversion port 303 through the diversion chamber 302, and the cooling water is diverted to the outer surface of the knife tooth sleeve 6 through the diversion port 303, thereby dissipating the heat and cooling the outer surface of the knife tooth sleeve 6.

[0029] The tooth sleeve 6 includes upper teeth 8 and lower teeth 9. The lower teeth 9 are fixedly connected below the upper teeth 8. The upper teeth 8 are spiral spur teeth, which are spirally distributed on the top of the tooth sleeve 6. The lower teeth 9 include threaded teeth, which are spirally arranged on the outside of the tooth sleeve 6, and spiral spur teeth 10 are spirally arranged in the middle of the spiral teeth. The spur teeth are spirally arranged on the top of the tooth sleeve 6, which are essentially spur tooth structures, while the spiral spur teeth 10 are threaded structures. The two are different. The upper teeth 8 and the lower teeth 9 can achieve different processing effects when using the milling cutter for processing through multiple groups of teeth of different shapes.

[0030] Working principle: first, the cutter tooth sleeve 6 is connected to the threaded rod 503 through the threaded groove, and the cutter tooth sleeve 6 is continuously rotated so that the cutter tooth sleeve 6 can extend into the threaded rod 503, and the insert plate 502 is inserted into the arc plate 501 to realize the threaded connection between the cutter rod 1 and the cutter tooth sleeve 6, and during the insertion of the insert plate 502, the insert plate 502 will squeeze the block 504, so that the bottom end of the block 504 is squeezed into the inside of the slot, and then when the cutter tooth sleeve 6 penetrates to a certain position, the block 504 will pop out and be stuck in the inside of the limiting groove 7, thereby increasing the connection between the cutter tooth sleeve 6 and the cutter rod 1, and then during the use of the PCD double-edged milling cutter, the upper teeth 8 and the lower teeth 9 at the cutter tooth sleeve 6 can realize a variety of processing effects during processing, and the upper Tooth 8 is used for rough processing during the milling cutter processing, and performs preliminary cutting and drilling on the workpiece, while the threaded teeth at the lower teeth 9 and the spiral straight teeth 10 further process the workpiece, thereby reducing the generation of dander. After the processing is completed, the water tank 2 can be filled with cooling water, and the cooling water is transmitted to the inside of the diverter chamber 302 through the cooling pipe 301, and flows to the outer surface of the cutter sleeve 6 through the diverter port 303 at the end of the diverter chamber 302, thereby realizing the cooling of the cutter sleeve 6. Finally, when the cutter sleeve 6 needs to be replaced, pull the pull plate 505, so that the pull plate 505 pulls the block 504 through the tension spring 506, so that the block 504 is disengaged from the limit groove 7, and then rotate the cutter sleeve 6 to disengage from the threaded rod 503 to replace the cutter sleeve 6.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high-strength PCD double-edged milling cutter, characterized in that: It comprises a knife bar (1), a water storage tank (2) fixedly mounted on the outside of the knife bar (1), and a cooling assembly (3) connected to the water storage tank (2); a connecting rod (4) is fixedly mounted above the knife bar (1); a fixing assembly (5) is sleeved on the outside of the connecting rod (4); and a knife tooth sleeve (6) is threadedly connected between the fixing assembly (5) and the connecting rod (4); The fixing assembly (5) comprises two symmetrically arranged arc plates (501), the arc plates (501) being fixedly mounted on the outside of the knife rod (1), the inner side of the arc plates (501) being threadedly connected to a plug plate (502), the plug plate (502) being fixedly mounted on the lower end of the knife tooth sleeve (6), and the connecting rod (4) being located on the inner side of the plug plate (502) and being fixedly mounted with a threaded rod (503), the top end of the threaded rod (503) passing through The blade tooth sleeve (6) is provided with a clamping block (504) on the inner side of the arc plate (501) rotatably mounted via a rotating shaft, and a clamping slot matching the clamping block (504) is provided on the arc plate (501) at the clamping block (504), a pulling plate (505) is provided at one end of the clamping slot away from the clamping block (504), a tension spring (506) is fixedly mounted on the inner side of the pulling plate (505), and the other end of the tension spring (506) is fixedly mounted on the clamping block (504).

2. A high-strength PCD double-edge milling cutter according to claim 1, characterized in that: The cutter sleeve (6) is provided with a thread groove matching the threaded rod (503) at the threaded rod (503), the thread groove is provided on the cutter sleeve (6), and a limit groove (7) matching the clamping block (504) is provided at the connection between the cutter sleeve (6) and the clamping block (504).

3. A high-strength PCD double-edge milling cutter according to claim 1, characterized in that: The cooling assembly (3) comprises a cooling pipe (301), the cooling pipe (301) being arranged inside the cutter rod (1) and the connecting rod (4), the cooling pipe (301) being an L-shaped structure, and one end of the cooling pipe (301) passing through the threaded rod (503) and extending to the inside of the cutter tooth sleeve (6), a shunt chamber (302) being provided at the connection between the cutter tooth sleeve (6) and the cooling pipe (301), the shunt chamber (302) being provided inside the cutter tooth sleeve (6).

4. A high-strength PCD double-edge milling cutter according to claim 3, characterized in that: The blade sleeve (6) is provided with a diversion opening (303) at the end of the diversion cavity (302), and the diversion opening (303) is provided on the surface of the blade sleeve (6).

5. The high-strength PCD double-edge milling cutter according to claim 1, characterized in that: The blade tooth sleeve (6) comprises upper teeth (8) and lower teeth (9), the lower teeth (9) being fixedly connected below the upper teeth (8), the upper teeth (8) being spirally spur teeth, and the spirally spur teeth being distributed at the top of the blade tooth sleeve (6).

6. A high-strength PCD double-edge milling cutter according to claim 5, characterized in that: The lower teeth (9) comprise thread teeth, the thread teeth are arranged in a spiral shape on the outside of the cutter tooth sleeve (6), and a spiral spur tooth (10) is arranged in a spiral shape in the middle of the spiral teeth.

7. A high-strength PCD double-edge milling cutter according to claim 1, characterized in that: A connecting pipe (11) is fixedly mounted on the top of the water storage tank (2), and the water storage tank (2) and the cooling assembly (3) are in communication with each other.

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