Cutting tool set for finish machining of parts

Abstract

The cutter set comprises a main body and fine boring units, the main body comprises a mounting base, a plurality of mounting grooves distributed at equal intervals are formed in the side wall of the mounting base, and the fine boring units correspond to the mounting grooves one to one and are detachably mounted on the mounting grooves; a blade with a cutting edge protruding out of the mounting base is arranged at the top end of the fine boring unit. A plurality of fine boring units easy to disassemble and adjust are installed to replace traditional reamers to conduct fine machining on steel jacket parts, all the blades are independently clamped through the fine boring units, when local blades are damaged, the whole cutter body does not need to be disassembled and replaced, the clamping time is shortened, the maintenance efficiency is improved, the maintenance cost is reduced, and the production efficiency is improved. And the large-batch production efficiency of the steel sleeve parts can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of machining equipment, in particular to a cutting tool set for part finishing. BACKGROUND

[0002] In modern industrial production, especially in the field of new energy, higher requirements are put forward for the machining quality and efficiency of precision parts such as steel sleeves.

[0003] In the existing machining process, in order to realize high-efficiency machining of precision parts, a reamer with multiple teeth is usually used to finish machining the surface of the part during mass production.

[0004] Although the reamer can provide high machining performance, due to its indivisible overall structure, when one of the teeth is worn, in order to ensure the machining accuracy of the precision part, the entire reamer must be replaced, which greatly increases the cost burden, and the clamping time during reamer replacement is long and the maintenance efficiency is low, which affects the machining efficiency of the part. CONTENT OF THE UTILITY MODEL

[0005] In view of the deficiencies in the prior art, the purpose of the present application is to provide a cutting tool set for part finishing to replace the traditional reamer for finishing machining of steel sleeve parts, which has the effects of high machining efficiency and low maintenance cost.

[0006] A cutting tool set for part finishing, comprising a main body and a fine boring unit, the main body comprises a mounting seat, a plurality of mounting grooves are arranged on the side wall of the mounting seat at equal intervals, the fine boring unit corresponds to the mounting groove one by one and is detachably mounted on the mounting groove, and the top end of the fine boring unit is provided with a blade protruding from the mounting seat.

[0007] By adopting the above technical scheme, the fine boring unit which is easy to disassemble and adjust is installed on the main body to replace the traditional reamer for finishing machining of steel sleeve parts, the blade is easy to adjust, the machining range is convenient to control, the finishing machining demand of steel sleeve parts with different diameters is met, the adaptability of the tool set is enhanced, and the machining efficiency is improved.

[0008] The present application is further provided that: the mounting groove comprises a first mounting surface and a second mounting surface, and the first mounting surface intersects with the second mounting surface to form an installation included angle.

[0009] By adopting the above technical scheme, the first mounting surface and the second mounting surface are respectively fitted with the side surface of the fine boring unit by intersecting to form an installation included angle, the fine boring unit has a good fixing effect, the fine boring unit has high stability during machining, vibration is reduced, and machining consistency is improved.

[0010] The application is further provided that the connecting position of the first mounting surface and the second mounting surface is provided with a fixing hole, and the honing unit is provided with a locking member obliquely penetrating the honing unit, and the end of the locking member is fixedly connected with the fixing hole.

[0011] By adopting the above technical scheme, the locking member is obliquely penetrated through the honing unit and then fixed, the oblique locking design can make the direction of the pre-tightening force form an angle of 60° with the cutting reaction force and generate a self-locking effect, thereby ensuring the connection reliability under the intermittent cutting condition.

[0012] The application is further provided that the bottom end of the first mounting surface is provided with a first positioning hole, the top end of the first mounting surface is provided with a second positioning hole, and the honing unit is provided with a convex shaft which is in clamping cooperation with the first positioning hole and the second positioning hole.

[0013] By adopting the above technical scheme, the honing unit is in plug-in cooperation with the first positioning hole and the second positioning hole through the convex shaft, and the honing unit is fixedly positioned on the first mounting surface, thereby improving the fixing effect of the locking member on the honing unit and effectively preventing the honing unit from moving during the cutting process.

[0014] The application is further provided that the edge of the second mounting surface is provided with a boss, the mounting seat is provided with a circular arc groove which is in cooperation with the bottom arc surface of the honing unit, and the bottom of the boss is provided with an outer circular groove which is connected with the circular arc groove.

[0015] By adopting the above technical scheme, the circular arc groove is matched with the bottom edge of the honing unit, and when the honing unit moves to the inner side of the mounting groove, the circular arc groove can position the bottom of the honing unit, and meanwhile, the boss is in abutment with the side wall of the honing unit on the opposite side of the first mounting surface, thereby preventing the honing unit from moving and improving the stability of the cutting blade during the fine machining.

[0016] The application is further provided that the top of the honing unit is provided with a tool groove, and the cutting blade is detachably mounted on the tool groove.

[0017] By adopting the above technical scheme, the cutting blade is detachably mounted on the tool groove, and when one of the cutting blades is worn, it is convenient to replace and maintain the cutting blade, thereby improving the maintenance efficiency and reducing the production cost.

[0018] The application is further provided that the center of the main body is provided with a cooling flow channel, and the top end of the cooling flow channel is connected with a liquid outlet hole with an orifice on the second mounting surface.

[0019] By adopting the above technical scheme, the cooling flow channel and the liquid outlet hole can disperse the cooling liquid to the machining positions of the cutting blades, thereby ensuring the uniform cooling during the machining process.

[0020] The application is further provided with a cooling hole on the fine boring unit, one end of the cooling hole is located at the side of the blade, and the other end is connected with the liquid outlet hole, and a liquid inlet groove is arranged at the connection between the cooling hole and the liquid outlet hole.

[0021] By adopting the above technical scheme, the cooling hole and the liquid outlet hole are connected through the liquid inlet groove, so that the flow rate and pressure of the cooling liquid flowing out of the liquid outlet hole are improved when the cooling liquid flows out of the liquid outlet hole, and the cooling effect on the machining part of the blade is enhanced.

[0022] In summary, the beneficial technical effects of the application are:

[0023] 1. The fine boring unit is installed on the main body, and the fine boring unit is easy to disassemble and adjust, so that the traditional reamer is replaced to perform fine machining on the steel sleeve part, each blade is independently clamped and arranged through the fine boring unit, when the local blade is damaged, the entire cutter body does not need to be disassembled and replaced, the clamping time is shortened, the maintenance efficiency is improved, the maintenance cost is reduced, and the large-batch production efficiency of the steel sleeve part is improved.

[0024] 2. The mounting seat is multi-positioned on the fine boring unit through the first positioning hole, the second positioning hole, the boss and the circular groove, and the locking member is fixed on the fine boring unit through the inclined locking design, so that the direction of the pre-tightening force and the cutting reaction force form an included angle of 60°, and a self-locking effect is generated, the connection reliability is ensured under the intermittent cutting working condition, and the stability of the fine boring unit in the high-speed cutting process is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a schematic diagram of the overall structure of the application.

[0026] Figure 2 is a split schematic diagram of the main body and the fine boring unit in the application.

[0027] Figure 3 is a schematic diagram of the structure of the main body in the embodiment of the application.

[0028] Figure 4 is a partial cutaway schematic diagram of the main body in the embodiment of the application.

[0029] Figure 5 is one of the schematic diagrams of the structure of the fine boring unit in the embodiment of the application.

[0030] Figure 6 is the second schematic diagram of the structure of the fine boring unit in the embodiment of the application.

[0031] In the figure, 1, the main body, 2, the tool bar, 3, the mounting seat, 31, the mounting groove, 311, the first mounting surface, 312, the second mounting surface, 32, the fixing hole, 33, the first positioning hole, 34, the second positioning hole, 35, the boss, 36, the circular arc groove, 37, the outer circular groove, 4, the fine boring unit, 41, the blade, 42, the locking piece, 43, the convex shaft, 44, the tool groove, 45, the cooling hole, 451, the liquid inlet groove, 5, the cooling flow channel, 51, the liquid outlet hole. DETAILED DESCRIPTION

[0032] The application will be further described in detail below with reference to the accompanying drawings.

[0033] Reference Figures 1-6 A cutting tool set for finishing parts is disclosed in the application, which comprises a main body 1 and a fine boring unit 4. The main body 1 comprises a tool bar 2 and a mounting seat 3, which are integrally formed to ensure that the main body 1 has sufficient rigidity. A plurality of mounting grooves 31 are arranged on the side wall of the mounting seat 3 at equal intervals. The fine boring unit 4 corresponds to the mounting groove 31 one by one and is detachably mounted on the mounting groove 31. The top end of the fine boring unit 4 is provided with a blade 41 protruding from the mounting seat 3. The blade 41 is fixedly connected with the fine boring unit 4 through a screw, and the cutting edge of the blade 41 protrudes from the mounting seat 3, which facilitates the finishing of the plane or circular arc surface of the workpiece.

[0034] In the application, the traditional reamer is replaced by a plurality of fine boring units 4 which are easily detachable and adjustable to finish the steel sleeve parts. The blade 41 is easily adjustable, which facilitates the adjustment of the machining range to adapt to the finishing requirements of steel sleeve parts of different diameters, and the adaptability is enhanced and the machining efficiency is improved.

[0035] Although the traditional reamer can also provide high machining performance, since the teeth and the tool body are an integral structure, when one of the teeth is worn, the entire assembly must be replaced to ensure machining accuracy, which results in high production cost. In the application, each blade 41 is independently clamped by the fine boring unit 4. When the local blade 41 is damaged, the entire tool body does not need to be disassembled and replaced, which shortens the clamping time and maintenance efficiency and reduces the maintenance cost.

[0036] Reference Figure 1 and Figure 2The mounting slot 31 has four slots, which can simultaneously install and fix four sets of precision boring units 4. When the main body 1 rotates during the precision machining of the steel sleeve parts, it can drive the four sets of precision boring units 4 to rotate simultaneously, so that the four blades 41 can simultaneously perform precision machining on the workpiece, thereby providing higher machining efficiency. The mounting slot 31 includes a first mounting surface 311 and a second mounting surface 312. The first mounting surface 311 and the second mounting surface 312 intersect to form a mounting angle for installing the precision boring units 4. The precision boring units 4 are engaged with the mounting slot 31 by two vertically distributed sides that are diagonally distributed with the blades 41, so that the first mounting surface 311 and the second mounting surface 312 respectively fit against the sides of the precision boring units 4, thereby achieving a good fixing effect on the precision boring units 4 and ensuring that the precision boring units 4 have high stability during the machining process, reducing vibration and improving machining consistency.

[0037] Reference Figure 2 and Figure 3 A fixing hole 32 is provided at the connection between the first mounting surface 311 and the second mounting surface 312. The fixing hole 32 is an internal threaded hole. A locking member 42 is provided on the precision boring unit 4 near the bottom end, which is obliquely penetrating the precision boring unit 4. The locking member 42 adopts a screw structure. The end of the locking member 42 is threadedly connected and fixed to the fixing hole 32, and fixes the precision boring unit 4 to the inside of the mounting groove 31. The locking member 42 can form a 60° angle between the preload direction and the cutting reaction force through the oblique locking design, and generate a self-locking effect to ensure the reliability of the connection under intermittent cutting conditions.

[0038] Reference Figure 3 and Figure 5 The bottom end of the first mounting surface 311 is provided with a first positioning hole 33, and the top end of the first mounting surface 311 is provided with a second positioning hole 34. The precision boring unit 4 is provided with a convex shaft 43 that engages with the first positioning hole 33 and the second positioning hole 34. The convex shaft 43 is respectively provided on the upper and lower sides of the connection surface between the precision boring unit 4 and the first mounting surface 311. By engaging with the first positioning hole 33 and the second positioning hole 34, the precision boring unit 4 is limited and fixed on the first mounting surface 311, which improves the fixing effect of the locking member 42 on the precision boring unit 4 and effectively prevents the precision boring unit 4 from moving during the cutting process, enhances the stability of the precision boring unit 4, and ensures the machining accuracy.

[0039] Reference Figure 1 and Figure 3 A boss 35 is provided at the edge of the second mounting surface 312. The boss 35 is integrally formed with the mounting base 3. The boss 35 can abut against the side wall of the precision boring unit 4 on the opposite side of the first mounting surface 311. The first mounting surface 311, the second mounting surface and the boss 35 can limit and fix the precision boring unit 4 on three sides, further improving the stability of the precision boring unit 4 during processing.

[0040] The mounting base 3 is provided with an arc groove 36 that matches the bottom arc surface of the precision boring unit 4. The arc groove 36 is adapted to the bottom edge of the precision boring unit 4 and can limit the bottom end of the precision boring unit 4 to ensure that the precision boring unit 4 has sufficient stability. The bottom of the boss 35 is provided with an outer circular groove 37 that is connected to the arc groove 36. The outer circular groove 37 facilitates the movement of the bottom end of the precision boring unit 4 to the inside of the arc groove 36.

[0041] Reference Figure 4 A cooling channel 5 is provided at the center of the main body 1. The top of the cooling channel 5 is connected to a liquid outlet hole 51 located on the second mounting surface 312. When the main body 1 is mounted on the machining center by the tool holder 2, the cooling channel 5 can be connected to the coolant pipeline of the machining center. After the coolant flows into the cooling channel 5, it can be dispersed and flow into the mounting groove 31 through the liquid outlet hole 51 to cool the machining part of the cutting tool 41 and improve the machining accuracy.

[0042] Reference Figure 2 and Figure 6 The top of the precision boring unit 4 is provided with a tool groove 44, and the blade 41 is detachably mounted on the tool groove 44 by screws. When one of the blades 41 is worn, it can be quickly replaced and maintained, which improves maintenance efficiency and reduces production costs.

[0043] The precision boring unit 4 is provided with a cooling hole 45. One end of the cooling hole 45 is located on the periphery of the cutting tool 41, and the other end is connected to the liquid outlet hole 51. A liquid inlet groove 451 is provided at the connection between the cooling hole 45 and the liquid outlet hole 51. The liquid inlet groove 451 is an elongated oval design, and the groove width is larger than the diameter of the liquid outlet hole 51. This facilitates the flow of coolant from the liquid outlet hole 51 into the liquid outlet hole 51, ensuring that the coolant can fully contact the cutting tool 41 after flowing out of the liquid outlet hole 51. In addition, the diameter of the liquid outlet hole 51 is smaller than the diameter of the cooling hole 45, which can increase the outflow rate and pressure of the coolant when flowing out of the liquid outlet hole 51, ensuring the cooling effect on the machining part of the cutting tool 41.

[0044] The implementation principle of this embodiment is as follows: First, the precision boring unit 4 is moved to the inner side of the mounting groove 31, and the precision boring unit 4 is fixed by the locking member 42. The precision boring unit 4 is limited by the cooperation of the first positioning hole 33, the second positioning hole 34, the boss 35 and the arc groove 36. Multiple sets of precision boring units 4 are installed on the mounting base 3 in sequence.

[0045] When machining steel sleeve parts, the main body 1 is mounted on the drive shaft of the machining center via the tool holder 2, and the cooling channel 5 is connected to the coolant pipeline of the machining center. Then, the drive shaft of the machining center drives the tool holder 2 to rotate, which causes the mounting base 3 to drive multiple precision boring units 4 to rotate, so that the insert 41 performs precision machining on the steel sleeve parts. When one of the inserts 41 wears out, the damaged insert 41 can be replaced on the tool groove 44 without disassembling and replacing the entire tool body, which shortens the clamping time and maintenance efficiency and reduces maintenance costs.

[0046] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cutting tool set for finishing of a part, comprising a main body (1) and a finish boring unit (4), characterized in that: The main body (1) comprises a mounting seat (3), a plurality of equidistantly distributed mounting grooves (31) are arranged on the side wall of the mounting seat (3), the fine boring unit (4) corresponds to the mounting groove (31) one by one, and the fine boring unit (4) is detachably mounted on the mounting groove (31), and the top end of the fine boring unit (4) is provided with a blade (41) protruding from the mounting seat (3).

2. The cutting tool set for finishing of a part according to claim 1, characterized in that: The mounting groove (31) comprises a first mounting surface (311) and a second mounting surface (312), and the first mounting surface (311) intersects with the second mounting surface (312) to form an installation included angle.

3. The cutting tool set for finishing of a part according to claim 2, wherein: The connecting part of the first mounting surface (311) and the second mounting surface (312) is provided with a fixing hole (32), and the fine boring unit (4) is provided with a locking piece (42) obliquely penetrating the fine boring unit (4), and the end of the locking piece (42) is fixedly connected with the fixing hole (32).

4. The cutting tool set for finishing of a part according to claim 2, wherein: The bottom end of the first mounting surface (311) is provided with a first positioning hole (33), and the top end of the first mounting surface (311) is provided with a second positioning hole (34), and the fine boring unit (4) is provided with a convex shaft (43) matched with the first positioning hole (33) and the second positioning hole (34).

5. The cutting tool set for finishing of a part according to claim 2, wherein: The edge of the second mounting surface (312) is provided with a boss (35), and the mounting seat (3) is provided with an arc groove (36) matched with the bottom arc surface of the fine boring unit (4), and the bottom of the boss (35) is provided with an outer circular groove (37) connected with the arc groove (36).

6. The cutting tool set for finishing of a part according to claim 1, wherein: The top of the fine boring unit (4) is provided with a tool groove (44), and the blade (41) is detachably mounted on the tool groove (44).

7. The cutting tool set for finishing of a part according to claim 1, wherein: The center of the main body (1) is provided with a cooling flow channel (5), and the top end of the cooling flow channel (5) is connected with a liquid outlet hole (51) with an orifice on the second mounting surface (312).

8. The cutting tool set for finishing of a part according to claim 7, wherein: The fine boring unit (4) is provided with a cooling hole (45), one end of the cooling hole (45) is located on the side of the blade (41), and the other end is connected with the liquid outlet hole (51), and the connecting part of the cooling hole (45) and the liquid outlet hole (51) is provided with a liquid inlet groove (451).

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