Adjustable cutter and machining equipment

Abstract

The utility model relates to an adjustable cutter and processing equipment. The adjustable cutter comprises a cutter bar, a cutter body, a fastener and a guide bar, the cutter body comprises a plurality of extending parts, each extending part is provided with an L-shaped through groove, and the through grooves are divided into supporting parts at the free ends of the extending parts; meanwhile, a containing groove is formed in the free end of each extending part, and a boss is arranged in each containing groove; the fastener comprises a puller screw, a bolt, a conical screw and a compression screw, the puller screw and the bolt are respectively screwed on the supporting part, and the conical screw is screwed on the boss; the guide strip is embedded in the containing groove and fixed into the containing groove through a pressing screw screwed to the extending part, and a conical face matched with the conical screw is arranged on the guide strip. The machining equipment is provided with a structure capable of finely adjusting the positions of the blade and the guide strip, a flange does not need to be arranged, the size deviation caused by jumping of the main shaft of the equipment can be made up, the weight of the whole tool can be reduced, and the machining precision and stability are further guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of machining equipment, in particular to an adjustable cutting tool and a machining equipment. Background Technique

[0002] Machining refers to a machining process of removing materials through precise machining by machinery, which can be divided into two categories: manual machining and numerical control machining. Manual machining refers to a method of machining various materials by workers manually operating mechanical equipment such as milling machines, lathes, drilling machines, and sawing machines. Manual machining is suitable for small-batch and simple part production; numerical control machining (CNC) refers to workers using numerical control equipment for machining, and these numerical control equipment include machining centers, turning and milling centers, wire electrical discharge machining equipment, thread cutting machines, etc.

[0003] When machining holes with a relatively large diameter and a relatively deep hole depth on a machining center, a guiding bar tool is often used. However, existing guiding bar tools all need to adjust the cutting blade and the guiding bar through a flange structure to compensate for the machining error caused by the spindle runout of the equipment. The flange structure will make the overall weight of the cutting tool too heavy. If the spindle pulling force is insufficient, it will affect the hole diameter and roundness of the product, and even scratch the hole wall, unable to guarantee the final quality of the product. Content of the Utility Model

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the problem that existing guiding bar tools all need to adjust the cutting blade and the guiding bar through a flange structure to compensate for the machining error caused by the spindle runout of the equipment. The flange structure will make the overall weight of the cutting tool too heavy. If the spindle pulling force is insufficient, it will affect the hole diameter and roundness of the product, and even scratch the hole wall, unable to guarantee the final quality of the product.

[0005] To solve the above technical problem, the utility model provides an adjustable cutting tool, including

[0006] A tool shank;

[0007] A tool body, the tool body is connected to one end of the tool shank. The tool body includes a plurality of extension parts arranged at intervals along the circumferential direction of the tool shank and vertically extending away from the tool shank. An L-shaped through groove is opened on each extension part. The through groove divides a support part parallel to the tool shank at the free end of the extension part. A first threaded hole and a second threaded hole communicating with the through groove are respectively vertically opened on the surface of the support part away from the tool shank, and a third threaded hole coaxial with the second threaded hole is opened on the side wall of the through groove; at the same time, a receiving groove extending towards the tool shank is opened at the free end of each extension part. A boss close to the tool shank is arranged in the receiving groove. A fourth threaded hole parallel to the tool shank is opened on the boss, and a plurality of fifth threaded holes vertically communicating with the receiving groove are further opened on one side of the extension part;

[0008] Fasteners, the fasteners include a tightening screw, a bolt, a tapered screw and a pressing screw. The tightening screw is screwed into the first threaded hole, the bolt is simultaneously screwed into the second threaded hole and the third threaded hole, the tapered screw is screwed into the fourth threaded hole, and the pressing screw is screwed into the fifth threaded hole;

[0009] A guide bar is fitted into the accommodating groove, and a conical surface that matches and fits the side surface of the tapered screw is provided on one side of the guide bar close to the tapered screw.

[0010] In an embodiment of the present invention, it further includes a pressing plate. The pressing plate is disposed in the accommodating groove and is located between the guide bar and the fifth threaded hole, and the pressing screw presses the pressing plate.

[0011] In an embodiment of the present invention, the bottom surface of the through groove is an arc surface.

[0012] In an embodiment of the present invention, two of the fourth threaded holes are coaxially provided on the convex platform. The two fourth threaded holes are symmetric with each other and are respectively screwed with the tapered screws.

[0013] In an embodiment of the present invention, the guide bar includes a guide bar body. One end of the guide bar body is provided with a PCD guide bar, and the other end of the guide bar body is symmetrically provided with two protrusions. The free ends of the two protrusions are both provided with the conical surfaces and respectively fit the side surfaces of the two tapered screws.

[0014] In an embodiment of the present invention, an internal cooling passage is coaxially provided in the tool shank. A first liquid outlet hole communicating with the internal cooling passage is respectively opened on the side surface of each extension portion, and a second liquid outlet hole located on one side of the accommodating groove is respectively opened at the free end of each extension portion.

[0015] In an embodiment of the present invention, a tool groove is provided on each of the supporting portions.

[0016] In an embodiment of the present invention, the cross section of the extension portion is rectangular, and a chamfer is provided on an edge of the free end of the extension portion close to the tool shank.

[0017] In an embodiment of the present invention, the tool body includes four of the extension portions.

[0018] A processing device includes the adjustable tool as described in any one of the above.

[0019] The above technical solutions of the present invention have the following advantages compared with the prior art:

[0020] The utility model discloses an adjustable tool and processing equipment, comprising a tool rod, a tool body, a fastener and a guide strip; the tool body comprises a plurality of extension parts, each of which is provided with an L-shaped through groove, the through groove divides a support part at the free end of the extension part, the support part is provided with a first threaded hole and a second threaded hole respectively, and a third threaded hole coaxial with the second threaded hole is provided on the side wall of the through groove; at the same time, the free end of each extension part is provided with a receiving groove, a boss is provided in the receiving groove, a fourth threaded hole is provided on the boss, and a fifth threaded hole is also provided on one side of the extension part; the fastener comprises a tightening screw, a bolt, a tapered screw and a pressing screw The tightening screw and the top tightening screw are screwed into the first threaded hole, the bolt is screwed into the second threaded hole and the third threaded hole at the same time, the tapered screw is screwed into the fourth threaded hole, and the clamping screw is screwed into the fifth threaded hole; the guide bar is embedded in the accommodating groove, and a tapered surface is provided on the side of the guide bar close to the tapered screw; the processing equipment is provided with a structure that can fine-tune the position of the blade and the guide bar respectively, and there is no need to set a flange. It can not only make up for the dimensional deviation caused by the vibration of the equipment spindle, but also reduce the weight of the entire tool, further ensuring the processing accuracy and stability. The entire tool is easy to install and use and has high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein

[0022] Figure 1 It is a three-dimensional diagram of an adjustable tool of a preferred embodiment of the utility model;

[0023] Figure 2 It is an exploded view of the adjustable tool of the preferred embodiment of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the knife body of the adjustable knife of the preferred embodiment of the utility model;

[0025] Figure 4 yes Figure 3 An enlarged view of section A of the adjustable tool is shown;

[0026] Figure 5 It is a structural schematic diagram of the guide bar of the adjustable tool of the preferred embodiment of the utility model;

[0027] Figure 6 It is a structural schematic diagram of the inner cooling passage of the adjustable tool according to the preferred embodiment of the utility model.

[0028] Description of the reference numerals in the drawings: 1. Tool shank; 11. Internal coolant passage; 2. Tool body; 21. Extension part; 22. Through groove; 23. Support part; 24. First threaded hole; 25. Second threaded hole; 26. Accommodation groove; 27. Boss; 28. Fourth threaded hole; 29. Fifth threaded hole; 3. Fastener; 31. Tightening screw; 32. Bolt; 33. Tapered screw; 34. Compression screw; 4. Guide bar; 41. Tapered surface; 42. Guide bar body; 43. PCD guide bar; 5. Pressure plate. Detailed implementation manners

[0029] The present utility model will be further described below in conjunction with the drawings and specific embodiments, so that those skilled in the art can better understand the present utility model and be able to implement it, but the embodiments cited are not intended to limit the present utility model.

[0030] Embodiment 1

[0031] Referring to Figures 1-6 as shown, an adjustable tool of the present utility model includes

[0032] a tool shank 1;

[0033] a tool body 2, the tool body 2 is connected to one end of the tool shank 1, the tool body 2 includes a plurality of extension parts 21 arranged at intervals in the circumferential direction of the tool shank 1 and vertically extending away from the tool shank 1, L-shaped through grooves 22 are formed in the extension parts 21, a support part 23 parallel to the tool shank 1 is separated at the free end of the extension part 21 by the through groove 22, a first threaded hole 24 and a second threaded hole 25 communicating with the through groove 22 are respectively vertically formed on the surface of the support part 23 away from the tool shank 1, and a third threaded hole coaxial with the second threaded hole 25 is formed on the side wall of the through groove 22; at the same time, accommodation grooves 26 extending towards the tool shank 1 are formed at the free ends of the respective extension parts 21, a boss 27 on the side close to the tool shank 1 is arranged in the accommodation groove 26, a fourth threaded hole 28 parallel to the tool shank 1 is formed on the boss 27, and a plurality of fifth threaded holes 29 vertically communicating with the accommodation groove 26 are further formed on one side of the extension part 21;

[0034] a fastener 3, the fastener 3 includes a tightening screw 31, a bolt 32, a tapered screw 33 and a compression screw 34, the tightening screw 31 is screwed into the first threaded hole 24, the bolt 32 is simultaneously screwed into the second threaded hole 25 and the third threaded hole, the tapered screw 33 is screwed into the fourth threaded hole 28, and the compression screw 34 is screwed into the fifth threaded hole 29;

[0035] a guide bar 4, the guide bar 4 is fitted in the accommodation groove 26, and a tapered surface 41 matching and fitting with the side surface of the tapered screw 33 is arranged on the side of the guide bar 4 close to the tapered screw 33.

[0036] Specifically, tightening the bolt 32 can pull the supporting part 23 towards the side close to the tool bar 1, while tightening the jacking screw 31 can push the supporting part 23 towards the side away from the tool bar 1. By the cooperation of the bolt 32 and the jacking screw 31, fine adjustment of the position of the free end of the supporting part 23 can be achieved, thereby adjusting the tip height of the cutting blade installed on the supporting part 23. Similarly, during the process of turning the tapered screw 33, the tapered screw 33 can push the guide bar 4 through its conical surface, thereby achieving adjustment of the position of the guide bar 4.

[0037] Working principle: The jacking screw 31 is screwed into the first threaded hole 24, and one end of the jacking screw 31 abuts against the inner wall of the through groove 22. By tightening or loosening the jacking screw 31 and cooperating with the bolt 32 for "one push and one pull", the height of the tip of the cutting blade connected to the supporting part 23 can be adjusted within a certain range (specifically, the machining radius of the cutting blade can be adjusted), so as to compensate for the dimensional error caused by the slight runout of the equipment spindle and avoid the occurrence of problems such as poor product hole diameter and roundness. Moreover, by utilizing the cooperation between the tapered screw 33 and the conical surface on the guide bar 4, turning the tapered screw 33 can achieve the radial position adjustment of the guide bar, and cooperating with the compression screw 34 and the pressing plate 5 to fix the position of the adjusted guide bar 4, further solving the machining error caused by the runout of the equipment spindle and ensuring the final dimensional accuracy and quality of the product.

[0038] The adjustable tool of the present utility model is provided with a structure that can respectively fine-adjust the positions of the cutting blade and the guide bar 4. Without setting a flange, it can not only compensate for the dimensional deviation caused by the runout of the equipment spindle, but also reduce the weight of the entire tool, further ensuring the machining accuracy and stability. The installation and use of the entire tool are convenient, and it has high practicality.

[0039] Refer to Figure 1 and Figure 2 As shown, further, it further includes a pressing plate 5. The pressing plate 5 is arranged in the accommodating groove 26 and is located between the guide bar 4 and the fifth threaded hole 29, and the compression screw 34 tightly presses the pressing plate 5. Specifically, the pressing plate 5 can prevent the compression screw 34 from directly contacting the guide bar 4 and causing damage to the guide bar 4, and through the pressing plate 5, the stress area of the guide bar 4 can be increased. While ensuring the stability of the guide bar 4, it can further avoid the occurrence of damage to the guide bar 4 due to local stress.

[0040] Further, the bottom surface of the through groove 22 is an arc surface.

[0041] Further, two fourth threaded holes 28 are coaxially opened on the convex platform 27. The two fourth threaded holes 28 are symmetric with each other and are respectively screwed with tapered screws 33.

[0042] Refer to Figure 5As shown in the figure, further, the guide bar 4 includes a guide bar body 42. One end of the guide bar body 42 is provided with a PCD guide bar 43. At the other end of the guide bar body 42, two protrusions are symmetrically arranged. Conical surfaces 41 are provided at the free ends of the two protrusions and are respectively in contact with the sides of the two conical screws 33. Specifically, the two protrusions are respectively located on the upper and lower sides of the boss. The distance between the two protrusions matches the height of the boss 27. When installing the guide bar 4, the guide bar 4 is fitted together with the boss 27 through the two protrusions, and the conical surfaces of the two protrusions are respectively in contact with the sides of the conical screws 33 screwed on the upper and lower surfaces of the boss 27. It can be imagined that by setting two symmetric fourth threaded holes 28 and conical screws 33, it can ensure that the guide bar 4 is evenly stressed during the process of adjusting the position of the guide bar 4, thereby ensuring the final attitude of the guide bar 4.

[0043] Referring to Figure 6 As shown in the figure, further, an internal coolant passage 11 is coaxially arranged in the tool shank 1. A first liquid outlet hole communicating with the internal coolant passage 11 is respectively opened on the side surface of each extension part 21, and a second liquid outlet hole located on one side of the accommodation groove 26 is respectively opened at the free end of each extension part 21. Specifically, the first liquid outlet holes respectively correspond to the positions of one blade, and the second liquid outlet holes respectively correspond to the positions of one guide bar 4; during the processing, the coolant system of the equipment can spray cutting fluid to the positions of the blade and the guide bar 4, which can play a role in cooling and lubrication, improving the processing effect and the service life of the blade and the guide bar 4.

[0044] Further, a tool groove is provided on each support part 23, and the blade is fitted in the tool groove and fixed.

[0045] Further, the cross-section of the extension part 21 is rectangular, and a chamfer is provided on an edge of the free end of the extension part 21 close to the tool shank 1.

[0046] Further, the tool body 2 includes four extension parts 21, but is not limited to four, and can be set according to actual needs.

[0047] Embodiment 2

[0048] The present utility model also discloses a processing device, including the adjustable tool as in Embodiment 1.

[0049] Obviously, the above embodiments are only examples clearly described and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present utility model.

Claims

1. An adjustable cutting tool, characterized in that, Comprising: Tool shank; Tool body, the tool body is connected to one end of the tool shank, the tool body includes a plurality of extension parts arranged at intervals in the circumferential direction of the tool shank and vertically extending away from the tool shank, an L-shaped through groove is formed in each of the extension parts, the through groove divides a support part parallel to the tool shank at the free end of the extension part, a first threaded hole and a second threaded hole communicating with the through groove are respectively vertically formed on the surface of the support part away from the tool shank, and a third threaded hole coaxial with the second threaded hole is formed on the side wall of the through groove; At the same time, a receiving groove extending toward the tool shank is formed at the free end of each of the extension parts, a boss is arranged on the side close to the tool shank in the receiving groove, a fourth threaded hole parallel to the tool shank is formed on the boss, and a plurality of fifth threaded holes vertically communicating with the receiving groove are further formed on one side of the extension part; Fasteners, the fasteners include a top screw, a bolt, a tapered screw and a pressing screw, the top screw is screwed into the first threaded hole, the bolt is simultaneously screwed into the second threaded hole and the third threaded hole, the tapered screw is screwed into the fourth threaded hole, and the pressing screw is screwed into the fifth threaded hole; Guide bar, the guide bar is fitted into the receiving groove, and a tapered surface matching and fitting with the side surface of the tapered screw is arranged on the side of the guide bar close to the tapered screw.

2. The adjustable tool according to claim 1, wherein: It further includes a pressing plate, the pressing plate is arranged in the receiving groove and located between the guide bar and the fifth threaded hole, and the pressing screw presses the pressing plate.

3. The adjustable cutting tool according to claim 1, wherein: The bottom surface of the through groove is an arc surface.

4. The adjustable cutting tool according to claim 1, wherein: Two fourth threaded holes are coaxially formed on the boss, the two fourth threaded holes are symmetric to each other and are respectively screwed with the tapered screws.

5. The adjustable cutting tool according to claim 4, wherein: The guide bar includes a guide bar main body, a PCD guide bar is arranged at one end of the guide bar main body, two protrusions are symmetrically arranged at the other end of the guide bar main body, and tapered surfaces are arranged at the free ends of the two protrusions and respectively fit with the side surfaces of the two tapered screws.

6. The adjustable cutting tool according to claim 1, wherein: An internal cooling passage is coaxially arranged in the tool shank, a first liquid outlet hole communicating with the internal cooling passage is respectively formed on the side surface of each of the extension parts, and a second liquid outlet hole located on one side of the receiving groove is respectively formed at the free end of each of the extension parts.

7. The adjustable cutting tool according to claim 1, wherein: A tool groove is arranged on each of the support parts.

8. The adjustable cutting tool according to claim 1, wherein: The cross section of the extension part is rectangular, and a chamfer is arranged on an edge of the free end of the extension part close to the tool shank.

9. The adjustable cutting tool according to claim 1, wherein: The tool body includes four of the extension parts.

10. A processing device, characterized in that: Comprising the adjustable tool according to any one of claims 1-9.

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