Multi-cutting-edge inner-cooling sectional type PCD forming side milling cutter

Abstract

The utility model discloses a multi-blade inner-cooling sectional type PCD (Poly Crystal Diamond) forming side milling cutter, which belongs to the technical field of milling cutter processing and comprises a milling cutter assembly, and a mounting assembly used for processing a central connecting groove of a workpiece is mounted on the milling cutter assembly; the mounting assembly comprises a first mounting assembly and a second mounting assembly, and a liquid discharging assembly is mounted on the milling cutter assembly. By means of the mode, the sectional type multi-blade design is adopted, in the high-speed machining process, the contact area of the cutter is reduced, cutting force is shared, machining is better facilitated, the number of the blades is increased, two blades are changed into three blades, and the cutting amount of each tooth is shared; cutting fluid enters the cutter handle and the cutter body from the fluid inlet groove and flows out from the first fluid outlet groove and the second fluid outlet groove, smooth chip removal is facilitated while the first blade and the second blade are cooled, and the stable machining quality of a center connecting groove of a workpiece is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of milling cutter processing, in particular to a multi-blade internally cooled segmented PCD forming side milling cutter. Background Art

[0002] The automotive air conditioning fluid reservoir is a crucial component in the system. It stores refrigerant drawn in by the compressor and delivers it to the evaporator for cooling. Manufacturing this reservoir requires the use of a milling cutter, a cutting tool typically used on milling machines and CNC milling machines. The milling cutter uses a rotational motion and a feed motion to remove material from the workpiece surface, ultimately shaping it to the desired shape and size.

[0003] Chinese patent CN216706081U discloses a milling cutter, including a shank and a cutter head, the milling cutter having a central axis, the cutter head including a first cutting edge and a plurality of second cutting edges, the first cutting edge and the plurality of second cutting edges being connected in sequence around the central axis, the first cutting edge being provided with a first circumferential cutting edge and a cutting edge band provided along the outer edge of the first circumferential cutting edge, the plurality of second cutting edges being provided with a second circumferential cutting edge, a circumferential cutting edge chip groove being formed between adjacent first circumferential cutting edges and the plurality of second circumferential cutting edges, and on any cross section of the cutter head perpendicular to the central axis, the distance from a point on the cross section of the first circumferential cutting edge to the central axis is greater than the distance from a point on the cross section of the corresponding position of any second circumferential cutting edge to the central axis.

[0004] However, the milling cutter of this patent does not have a cutting fluid groove, which makes it impossible to cool the milling cutter and promote chip removal, which may cause thermal deformation and wear of the milling cutter and reduce the tool life.

[0005] Based on this, the utility model designs a multi-edge internally cooled segmented PCD forming side milling cutter to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides a multi-edge internally cooled segmented PCD forming side milling cutter.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] Multi-edge internal cooling segmented PCD forming side milling cutter, including milling cutter assembly;

[0009] The milling cutter assembly is provided with a mounting assembly for machining a central connecting groove of a workpiece;

[0010] The mounting assembly includes a first mounting assembly and a second mounting assembly, and the first mounting assembly and the second mounting assembly are both connected to the milling cutter assembly;

[0011] A drainage assembly is installed on the milling cutter assembly.

[0012] Furthermore, the milling cutter assembly includes a shank, a cutter body, a first mounting groove, a second mounting groove and a third mounting groove. The lower end of the shank is fixedly connected to the cutter body. Six first mounting grooves are provided on the outer wall of the cutter body at equal intervals along the circumference. A second mounting groove or a third mounting groove is provided on the side wall between two adjacent first mounting grooves, and the second mounting groove and the third mounting groove are arranged at intervals.

[0013] Furthermore, the first mounting assembly and the second mounting assembly are both connected to the first mounting slot, the second mounting slot is connected to the first mounting assembly, and the third mounting slot is connected to the second mounting assembly.

[0014] Furthermore, the first mounting assembly includes a first special-shaped groove, a first blade groove, a first blade, a first forming groove, a second forming groove and a protrusion, wherein a first blade groove is opened in the middle of the right side wall of the three first mounting grooves, and the first blade grooves are respectively located on the inner side of the second mounting groove on the same side thereof, the first blade is embedded in the first blade groove and fixedly connected to the right side wall of the first blade groove, the upper and lower ends of the outer side wall of the first blade are respectively opened with a first forming groove and a second forming groove, a protrusion is formed in the middle of the outer side of the first blade, the protrusion is located between the first forming groove and the second forming groove, and a first special-shaped groove similar to the contour of the first blade is opened on the upper side of the inner wall of the second mounting groove.

[0015] Furthermore, the heights of the three first installation components increase in sequence along the clockwise direction, and the height difference between the tops of the protrusions of adjacent first installation components is 0.2 mm, and the height difference between the bottoms is also 0.2 mm.

[0016] Furthermore, the second mounting assembly includes a second special-shaped groove, a second blade groove, a second blade and a third forming groove. The lower ends of the right side walls of the remaining three first mounting grooves are provided with second blade grooves, and the second blade grooves are respectively located on the inner sides of the third mounting grooves on the same side thereof. The second blade is embedded in the second blade groove and fixedly connected to the right side wall of the second blade groove. The lower end of the outer side wall of the second blade is provided with a third forming groove, and the lower side of the inner wall of the third mounting groove is provided with a second special-shaped groove with a contour similar to that of the second blade.

[0017] Furthermore, the first blade and the second blade are spaced apart, the angle between the plane where the first blade is located and the plane where the second blade is located is sixty degrees, and the plane where the first blade is located and the plane where the second blade is located both pass through the central axis of the blade body.

[0018] Furthermore, the drainage component includes a liquid inlet groove, a first liquid outlet groove and a second liquid outlet groove. A liquid inlet groove is provided at the center of the knife handle and the knife body. Two first liquid outlet grooves are provided on the rear side walls of the three first mounting grooves close to the first blade. The two first liquid outlet grooves are respectively located on the left side of the first forming groove and the second forming groove. The remaining three first mounting grooves are provided with second liquid outlet grooves on the rear side walls close to the second blade. The first liquid outlet groove and the second liquid outlet groove are both connected to the liquid inlet groove.

[0019] The utility model has the following technical effects:

[0020] During processing, the milling cutter descends to the cutting depth of the workpiece center connecting groove forming contour, the milling cutter radius is 18.01mm, the workpiece center connecting groove radius is 21.08mm, and the workpiece center connecting groove radius minus the milling cutter radius is 3.07mm. The tool rotates at high speed to complete the forming contour required by the drawing. Moreover, since the forming contour of the entire workpiece center connecting groove is processed at one time, the contour size is consistent, ensuring the consistency of the contour of batch production, which is beneficial to customer assembly and welding. Moreover, since the PCD milling cutter is used, the surface roughness of the processing is better, and the installed sealing ring can be prevented from being damaged to the greatest extent during assembly and sealing.

[0021] The utility model adopts a segmented multi-blade design, which reduces the tool contact area during high-speed processing, shares the cutting force, and is more conducive to processing. It also increases the number of blades from two to three, sharing the cutting amount of each tooth.

[0022] During machining, the cutting fluid enters the tool holder and the tool body from the liquid inlet groove and flows out from the first liquid outlet groove and the second liquid outlet groove, thereby cooling the first blade and the second blade and promoting smooth chip removal, so that the center connecting groove of the workpiece has stable machining quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0024] Figure 1 The three-dimensional structure of the multi-edge internal cooling segmented PCD forming side milling cutter of the utility model Figure 1 ;

[0025] Figure 2 This is a front view of the multi-edge internally cooled segmented PCD forming side milling cutter of the present invention;

[0026] Figure 3The three-dimensional structure of the multi-edge internal cooling segmented PCD forming side milling cutter of the utility model Figure 2 ;

[0027] Figure 4 The three-dimensional structure of the multi-edge internal cooling segmented PCD forming side milling cutter of the utility model Figure 3 ;

[0028] Figure 5 This is a schematic diagram of the processing of the multi-edge internally cooled segmented PCD forming side milling cutter of the utility model;

[0029] Figure 6 To follow Figure 2 AA direction cross-sectional view;

[0030] Figure 7 for Figure 4 Enlarged view of point B in the middle.

[0031] The numbers in the figure represent:

[0032] 1. Milling cutter assembly; 11. Tool handle; 12. Tool body; 13. First mounting slot; 14. Second mounting slot; 15. Third mounting slot; 2. Mounting assembly; 21. First mounting assembly; 211. First special-shaped slot; 212. First blade slot; 213. First blade; 214. First forming slot; 215. Second forming slot; 216. Bump; 22. Second mounting assembly; 221. Second special-shaped slot; 222. Second blade slot; 223. Second blade; 224. Third forming slot; 3. Drain assembly; 31. Liquid inlet slot; 32. First liquid outlet slot; 33. Second liquid outlet slot; 4. Workpiece. DETAILED DESCRIPTION

[0033] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0034] The present invention will be further described below with reference to the embodiments.

[0035] The terms “left,” “right,” “front,” “back,” “up,” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0036] Example 1

[0037] Please refer to the instruction manual Figure 1-7, a multi-edge internal cooling segmented PCD forming side milling cutter, comprising a milling cutter assembly 1;

[0038] The milling cutter assembly 1 is provided with a mounting assembly 2 for machining the central connecting groove of the workpiece 4;

[0039] The mounting assembly 2 includes a first mounting assembly 21 and a second mounting assembly 22, both of which are connected to the milling cutter assembly 1;

[0040] A drainage assembly 3 is installed on the milling cutter assembly 1 .

[0041] The milling cutter assembly 1 includes a shank 11, a cutter body 12, a first mounting groove 13, a second mounting groove 14 and a third mounting groove 15. The lower end of the shank 11 is fixedly connected to the cutter body 12. Six first mounting grooves 13 are opened on the outer wall of the cutter body 12 at equal intervals along the circumference. A second mounting groove 14 or a third mounting groove 15 is opened on the side wall between two adjacent first mounting grooves 13. The second mounting groove 14 and the third mounting groove 15 are arranged at intervals.

[0042] The first mounting assembly 21 and the second mounting assembly 22 are both connected to the first mounting slot 13 , the second mounting slot 14 is connected to the first mounting assembly 21 , and the third mounting slot 15 is connected to the second mounting assembly 22 .

[0043] The upper end of the tool handle 11 is fixedly connected to the output end of a milling machine (not shown).

[0044] The knife handle 11 and the knife body 12 are an integrally formed structure.

[0045] The first mounting assembly 21 includes a first special-shaped groove 211, a first blade groove 212, a first blade 213, a first forming groove 214, a second forming groove 215 and a protrusion 216, wherein the right side wall of the three first mounting grooves 13 is provided with a first blade groove 212 in the middle, and the first blade grooves 212 are respectively located on the inner side of the second mounting groove 14 on the same side thereof, the first blade 213 is embedded in the first blade groove 212 and fixedly connected to the right side wall of the first blade groove 212, the upper and lower ends of the outer side wall of the first blade 213 are respectively provided with a first forming groove 214 and a second forming groove 215, a protrusion 216 is formed in the middle part of the outer side of the first blade 213, the protrusion 216 is located between the first forming groove 214 and the second forming groove 215, and the upper side of the inner wall of the second mounting groove 14 is provided with a first special-shaped groove 211 with a similar outline to the first blade 213.

[0046] The heights of the three first mounting components 21 increase in sequence in a clockwise direction. The height difference between the tops of the protrusions 216 of adjacent first mounting components 21 is 0.2 mm, and the height difference between the bottoms is also 0.2 mm. Taking the front view as an example, the top of the left protrusion 216 is 0.2 mm higher than the top of the right protrusion 216, and the bottom of the left protrusion 216 is 0.2 mm higher than the bottom of the right protrusion 216. The three first blades 213 are divided into an asymmetric upper and lower staggered tooth distribution, with an upper and lower staggered distance of 0.2 mm. The cut aluminum chips are smaller than the actual groove width, which prevents the aluminum chips from being stuck in the processed groove and causing quality abnormalities.

[0047] The second mounting assembly 22 includes a second special-shaped groove 221, a second blade groove 222, a second blade 223 and a third forming groove 224. The lower ends of the right side walls of the other three first mounting grooves 13 are provided with second blade grooves 222. The second blade grooves 222 are respectively located on the inner sides of the third mounting grooves 15 on the same side thereof. The second blade 223 is embedded in the second blade groove 222 and fixedly connected to the right side wall of the second blade groove 222. The lower end of the outer side wall of the second blade 223 is provided with a third forming groove 224. The lower side of the inner wall of the third mounting groove 15 is provided with a second special-shaped groove 221 with a similar contour to the second blade 223.

[0048] The first blade 213 and the second blade 223 are arranged at intervals, and the angle between the plane where the first blade 213 is located and the plane where the second blade 223 is located is sixty degrees, and the plane where the first blade 213 is located and the plane where the second blade 223 is located both pass through the central axis of the cutter body 12. The six blades are distributed at sixty degrees and separated up and down to reduce the resistance on the cutting edge during cutting.

[0049] The sizes of the first special-shaped groove 211 and the second special-shaped groove 221 are slightly larger than the sizes of the first blade 213 and the second blade 223 , respectively.

[0050] During machining, the milling cutter descends to the cutting depth of the workpiece's 4-center connecting groove profile. The milling cutter radius is 18.01mm, and the workpiece's 4-center connecting groove radius is 21.08mm. The workpiece's 4-center connecting groove radius minus the milling cutter radius yields a circular milling radius of 3.07mm. The tool rotates at high speed to complete the profile required by the drawing. Since the entire section of the workpiece's 4-center connecting groove profile is machined in one go, the profile dimensions are consistent, ensuring profile consistency in batch production and facilitating assembly and welding. Furthermore, the use of a PCD milling cutter results in a better surface roughness, which minimizes damage to the installed sealing ring during assembly and sealing.

[0051] The utility model adopts a segmented multi-blade design, which reduces the tool contact area during high-speed processing, shares the cutting force, and is more conducive to processing. It also increases the number of blades from two to three, sharing the cutting amount of each tooth.

[0052] The drainage assembly 3 includes a liquid inlet groove 31, a first liquid outlet groove 32 and a second liquid outlet groove 33. A liquid inlet groove 31 is provided at the center of the handle 11 and the blade body 12. Two first liquid outlet grooves 32 are provided on the rear side walls of the three first mounting grooves 13 close to the first blade 213. The two first liquid outlet grooves 32 are respectively located on the left side of the first forming groove 214 and the second forming groove 215. The second liquid outlet grooves 33 are provided on the rear side walls of the remaining three first mounting grooves 13 close to the second blade 223. The first liquid outlet grooves 32 and the second liquid outlet grooves 33 are both connected to the liquid inlet groove 31.

[0053] During machining, the cutting fluid enters the tool holder 11 and the tool body 12 from the liquid inlet groove 31 and flows out from the first liquid outlet groove 32 and the second liquid outlet groove 33, cooling the first blade 213 and the second blade 223 while promoting smooth chip removal, so that the center connecting groove of the workpiece 4 has stable machining quality.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A multi-edge internally cooled segmented PCD forming side milling cutter, comprising a milling cutter assembly (1), characterized in that: The milling cutter assembly (1) is provided with a mounting assembly (2) for machining a central connecting groove of a workpiece (4); The mounting assembly (2) comprises a first mounting assembly (21) and a second mounting assembly (22), and both the first mounting assembly (21) and the second mounting assembly (22) are connected to the milling cutter assembly (1); A liquid drainage assembly (3) is installed on the milling cutter assembly (1).

2. The multi-edge internally cooled segmented PCD forming side milling cutter according to claim 1, characterized in that: The milling cutter assembly (1) comprises a shank (11), a cutter body (12), a first mounting groove (13), a second mounting groove (14) and a third mounting groove (15); the lower end of the shank (11) is fixedly connected to the cutter body (12); six first mounting grooves (13) are provided at equal intervals along the circumference on the outer wall of the cutter body (12); a second mounting groove (14) or a third mounting groove (15) is provided on the side wall between two adjacent first mounting grooves (13); and the second mounting groove (14) and the third mounting groove (15) are arranged at intervals.

3. The multi-edge internally cooled segmented PCD forming side milling cutter according to claim 2, characterized in that: The first mounting assembly (21) and the second mounting assembly (22) are both connected to the first mounting slot (13), the second mounting slot (14) is connected to the first mounting assembly (21), and the third mounting slot (15) is connected to the second mounting assembly (22).

4. The multi-edge internally cooled segmented PCD forming side milling cutter according to claim 3, characterized in that: The first mounting assembly (21) comprises a first special-shaped groove (211), a first blade groove (212), a first blade (213), a first forming groove (214), a second forming groove (215) and a protrusion (216), wherein a first blade groove (212) is opened in the middle of the right side wall of the three first mounting grooves (13), the first blade grooves (212) are respectively located on the inner side of the second mounting grooves (14) on the same side thereof, and the first blade (213) is embedded in the first blade groove (212) and The first blade (213) is fixedly connected to the right side wall of the first blade groove (212); the upper and lower ends of the outer side wall of the first blade (213) are respectively provided with a first forming groove (214) and a second forming groove (215); a convex block (216) is formed in the middle of the outer side of the first blade (213); the convex block (216) is located between the first forming groove (214) and the second forming groove (215); and a first special-shaped groove (211) having a similar profile to the first blade (213) is provided on the upper side of the inner wall of the second installation groove (14).

5. The multi-edge internally cooled segmented PCD forming side milling cutter according to claim 4, characterized in that: The heights of the three first installation components (21) increase in sequence along the clockwise direction, and the height difference between the tops of the protrusions (216) of adjacent first installation components (21) is 0.2 mm, and the height difference between the bottoms is also 0.2 mm.

6. The multi-edge internally cooled segmented PCD forming side milling cutter according to claim 5, characterized in that: The second mounting assembly (22) comprises a second special-shaped groove (221), a second blade groove (222), a second blade (223) and a third forming groove (224); the lower ends of the right side walls of the other three first mounting grooves (13) are provided with second blade grooves (222); the second blade grooves (222) are respectively located on the inner sides of the third mounting grooves (15) on the same side; the second blade (223) is embedded in the second blade groove (222) and is fixedly connected to the right side wall of the second blade groove (222); the lower end of the outer side wall of the second blade (223) is provided with a third forming groove (224); and the lower side of the inner wall of the third mounting groove (15) is provided with a second special-shaped groove (221) having a similar contour to that of the second blade (223).

7. The multi-edge internally cooled segmented PCD forming side milling cutter according to claim 6, characterized in that: The first blade (213) and the second blade (223) are arranged at intervals, the angle between the plane where the first blade (213) is located and the plane where the second blade (223) is located is sixty degrees, and the plane where the first blade (213) is located and the plane where the second blade (223) is located both pass through the central axis of the blade body (12).

8. The multi-edge internally cooled segmented PCD forming side milling cutter according to claim 7, characterized in that: The liquid discharge assembly (3) comprises a liquid inlet groove (31), a first liquid outlet groove (32) and a second liquid outlet groove (33). The center of the knife handle (11) and the knife body (12) are both provided with a liquid inlet groove (31), wherein the rear side walls of the three first installation grooves (13) close to the first blade (213) are provided with two first liquid outlet grooves (32), the two first liquid outlet grooves (32) are respectively located on the left side of the first forming groove (214) and the second forming groove (215), and the rear side walls of the remaining three first installation grooves (13) close to the second blade (223) are provided with a second liquid outlet groove (33), and the first liquid outlet groove (32) and the second liquid outlet groove (33) are both connected to the liquid inlet groove (31).

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