Modularized adjustable reamer

Abstract

The utility model discloses a modular adjustable reamer. The modular adjustable reamer comprises a reamer rod and a reamer head assembly. The side face of the reamer rod is provided with a first adjusting assembly and a second adjusting assembly, and the end is provided with an opening inner cavity and an adjusting jackscrew. The tool bit assembly is composed of a tool bit and a tool handle, the tool handle is provided with a side fixing face and embedded in the open inner cavity, the first adjusting assembly extrudes the side fixing face to be locked, the axial protruding length of the tool bit assembly can be adjusted by adjusting the jackscrew, and the second adjusting assembly can be finely adjusted to control the axis of the tool bit to be consistent with the axis of the reamer rod. The side face of the reamer rod is provided with a blade groove and a blade which are detachably connected. A chip containing groove, a dispersing inner cooling hole, a dirt containing groove, a grafting water hole and the like are further formed. One end of the reamer rod is connected with a machine tool spindle through an external connecting mechanism, and a cooling water hole is formed in the reamer head. The reamer has the characteristics of modularization, adjustability and the like, different machining requirements can be met, the machining precision and efficiency are improved, and the service life of the reamer is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of machining tool, concretely relates to a modular adjustable reamer. BACKGROUND

[0002] In the traditional mechanical processing field, the reamer is a commonly used tool. The structure of the traditional reamer is usually fixed, usually a welded composite whole tool, and the manufacturing is complex, the length of the tool bit is not adjustable, and it is difficult to adapt to different processing requirements. Moreover, once part of the structure is damaged, the whole needs to be replaced, and the cost is high. In addition, the traditional reamer also has deficiencies in adjusting the axial consistency, which affects the machining accuracy

[0003] Therefore, the above problems need to be solved. INVENTION CONTENT

[0004] The utility model aims at overcoming the above-mentioned defects, and provides a modular adjustable reamer, which separates the reamer rod and the tool bit and blade, and can replace the failed part according to the requirements, which is convenient to replace and reduces the use cost. By adjusting the adjusting screw, the first adjusting assembly and the second adjusting assembly, the axial line and the connection length of the tool bit assembly can be accurately adjusted, and the tool bit assembly is convenient to replace. In addition, the side fixing method is adopted, which is more compact than other fixing types, can realize higher cutting rigidity, and is beneficial to rapid and efficient processing. The reamer rod is provided with multiple blades, and the multi-blade cutting improves the efficiency.

[0005] Technical scheme: the utility model provides a modular adjustable reamer including reamer rod, including reamer rod and tool bit assembly, the reamer rod is equipped with open inner chamber along the axial line, the reamer rod and tool bit assembly are coaxial connection, the open inner chamber is equipped with adjusting screw, the open inner chamber and adjusting screw are screwed, the first adjusting assembly is equipped on the lateral surface of reamer rod, and the second adjusting assembly is equipped at the end, the first adjusting assembly adjusts the axial line of tool bit assembly, and the second adjusting assembly adjusts the connection length of tool bit assembly and reamer rod. The modular design makes the reamer can replace different tool bit assemblies according to different processing requirements, adapts to various processing scenes, improves the versatility of the reamer, when the tool bit assembly is partially worn, only the tool bit assembly needs to be replaced without replacing the whole reamer rod, reduces the use cost, prolongs the overall service life of the reamer, the axial line of the tool bit assembly can be adjusted through the first adjusting assembly, ensures that the cutting direction of the reamer is accurate in the processing process, and the second adjusting assembly can adjust the connection length of the tool bit assembly and the reamer rod, and adapt to different depth processing requirements.

[0006] Further, the modular adjustable reamer in the application, the head assembly includes a head and a shank, the shank is provided with a group of side fixing surfaces, the head assembly is embedded in the open inner cavity, the end of the shank is in contact with the end of the adjusting top wire, the first adjusting assembly includes the locking top wire corresponding to the side fixing surface and the locking threaded hole matched with the locking top wire, the locking threaded hole is arranged on the side of the reamer rod, the locking top wire is perpendicular to the side fixing surface, the side fixing surface is inwardly inclined to the axis of the head assembly, forming an included angle, rotating and pressing the side fixing surface to lock the head assembly in the open inner cavity, and the shank is in close contact with the adjusting top wire under stress. By rotating and pressing the side fixing surface of the shank through the locking top wire, the head assembly is firmly locked in the open inner cavity of the reamer rod, ensuring that the head assembly does not loosen during machining, improving the stability and precision of machining.

[0007] Further, the modular adjustable reamer in the application, the second adjusting assembly includes an annular boss and a group of fine adjustment top wires, the annular boss is arranged on the end face of the reamer rod, and the radial side face of the annular boss is provided with fine adjustment threaded holes corresponding to the fine adjustment top wires. The annular boss provides a stable support and installation basis for the fine adjustment top wire, so that the fine adjustment top wire can function more effectively. During machining, the annular boss can share part of the cutting force, reduce the impact on the fine adjustment top wire, improve the stability of the entire second adjusting assembly, and the fine adjustment top wire can not only fine adjust the axis of the head assembly to be consistent with the axis of the reamer rod, but also can apply pressure to the head assembly to further enhance the stability of the head assembly in the open inner cavity, prevent it from shaking or shifting during high-speed rotation and cutting, and thus improve the stability and reliability of machining.

[0008] Further, the modular adjustable reamer in the application, the reamer rod is provided with a group of blade grooves on the side face, the blade grooves are provided with blades, and the blades are detachably connected in the blade grooves. The detachable connection of the blades in the blade grooves enables users to replace different types of blades according to different machining requirements, improving the flexibility and adaptability of the tool, and when the blades are worn or damaged, only the blades need to be replaced without replacing the entire reamer rod, reducing the use cost.

[0009] Further, the modular adjustable reamer in the application, the reamer rod is provided with a group of blade grooves on the side face, the blade grooves are provided with blades, and the blades are detachably connected in the blade grooves. The detachable connection of the blades in the blade grooves enables users to replace different types of blades according to different machining requirements, improving the flexibility and adaptability of the tool, and when the blades are worn or damaged, only the blades need to be replaced without replacing the entire reamer rod, reducing the use cost.

[0010] Further, the modular adjustable reamer in the application is provided with a dirt collecting groove on the blade groove. The dirt collecting groove can collect the cutting particles, oil stains and other impurities generated in the cutting process, prevent the impurities from accumulating near the cutting edge of the blade, and thus keep the cutting edge clean.

[0011] Further, the modular adjustable reamer in the application is provided with a water hole on the side surface of the reamer rod. The water hole can be easily connected with an external cooling system to realize the circulating supply of cooling liquid, improve the stability and reliability of the cooling effect, and generate a certain impact force when the cooling liquid is sprayed out of the water hole, helping to flush away the cutting chips from the cutting area.

[0012] Further, the modular adjustable reamer in the application is provided with an external connecting mechanism at the end of the reamer rod away from the tool head assembly, and the external connecting mechanism is connected with the main shaft of the machine tool.

[0013] Further, the modular adjustable reamer in the application is provided with a cooling water hole on the tool head. The cooling water hole is directly located on the tool head, and can directly spray the cooling liquid to the cutting area to realize the precise cooling of the cutting edge and the machined surface.

[0014] The above technical scheme can be seen that the utility model has the following beneficial effects:

[0015] 1. The modular adjustable reamer disclosed by the utility model separates the reamer rod, the tool head assembly and the blade by adopting modular design, so that when the tool head or the blade is worn or damaged, it can be replaced individually without replacing the whole reamer, thereby reducing the use cost. At the same time, different specifications of tool head assemblies and blades can be selected for combination according to different machining tasks, thereby improving the adaptability of the reamer.

[0016] 2. The modular adjustable reamer disclosed by the utility model can accurately adjust the axis of the tool head assembly by the first adjusting assembly, thereby reducing the vibration and deviation in the machining process and ensuring the machining quality. The second adjusting assembly can be used to flexibly adjust the connection length of the tool head assembly and the reamer rod, thereby meeting the machining requirements of different depths.

[0017] 3.The modular adjustable reamer of the utility model improves the chip removal efficiency and cooling effect through the structure of setting the chip groove, the dispersed internal cooling hole, the dirt collecting groove, the water hole on the reamer rod and setting the cooling water hole on the tool head. The chip groove provides storage space and discharge channel for the chips, avoiding the accumulation of the chips affecting the machining quality and tool life; the dispersed internal cooling hole and the cooling water hole can directly cool the cutting area, reduce the cutting temperature, reduce tool wear and thermal deformation, improve machining accuracy and tool life; the dirt collecting groove can collect impurities, keep the cutting edge clean and improve machining quality; the water hole is connected with the external cooling system to realize the circulation of the cooling liquid, improve the stability and reliability of the cooling effect. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is an explosion structure schematic view of the utility model modular adjustable reamer.

[0019] Figure 2 It is an overall structure schematic view of the utility model modular adjustable reamer.

[0020] Figure 3 It is a section structure schematic view of the utility model modular adjustable reamer.

[0021] Figure 4 It is a tool head assembly structure schematic view of the utility model modular adjustable reamer.

[0022] The description of the drawing of the utility model is as follows: 1-reamer rod, 11-first adjusting assembly, 111-locking jackscrew, 112-locking threaded hole, 12-second adjusting assembly, 121-annular boss, 122-fine adjustment jackscrew, 1221-fine adjustment screw hole, 13-opening inner cavity, 14-adjusting jackscrew, 15-blade groove, 151-dirt collecting groove, 16-chip groove, 161-dispersed internal cooling hole, 17-water hole, 18-external connecting mechanism, 2-tool head assembly, 21-tool head, 211-cooling water hole, 22-tool shank, 221-side fixing surface, 3-blade. DETAILED DESCRIPTION

[0023] The utility model is further illustrated in combination with the drawings and specific embodiments.

[0024] Embodiment 1

[0025] As Figure 1 , 2A modular adjustable reamer, as shown in Figure 3, includes a reamer rod 1 and a cutter head assembly 2. The reamer rod 1 has an open inner cavity 13 along its axis. The reamer rod 1 and the cutter head assembly 2 are coaxially connected. An adjusting set screw 14 is provided in the open inner cavity 13, and the open inner cavity 13 and the adjusting set screw 14 are threadedly connected. A first adjusting component 11 is provided on the side of the reamer rod 1, and a second adjusting component 12 is provided at its end. The first adjusting component 11 adjusts the axis of the cutter head assembly 2, and the second adjusting component 12 adjusts the connection length between the cutter head assembly 2 and the reamer rod 1. The modular design allows the reamer to replace different cutter head assemblies 2 according to different processing needs, adapting to various processing scenarios and improving the reamer's versatility. When the cutter head assembly 2 is partially worn, only the cutter head assembly 2 needs to be replaced without replacing the entire reamer rod 1, reducing usage costs and extending the overall service life of the reamer. The first adjusting component 11 can adjust the axis of the cutter head assembly 2 to ensure accurate cutting direction of the reamer during processing, and the second adjusting component 12 can adjust the connection length between the cutter head assembly 2 and the reamer rod 1 to adapt to processing needs at different depths.

[0026] like Figure 1 As shown, in this embodiment, the cutter head assembly 2 includes a cutter head 21 and a handle 22. The handle 22 is provided with a set of side fixing surfaces 221. The cutter head assembly 2 is embedded in the open inner cavity 13. The end of the handle 22 abuts against the end of the adjusting screw 14. The first adjusting component 11 includes a locking screw 111 corresponding to the side fixing surface 221 and a locking threaded hole 112 matching the locking screw 111. The locking threaded hole 112 is provided on the side of the reamer rod 1. The locking screw 111 is perpendicular to the side fixing surface 221. The side fixing surface 221 is inclined inward with the axis of the cutter head assembly 2, forming an angle. Rotating and pressing the side fixing surface 221 locks the cutter head assembly 2 in the open inner cavity 13. The handle 22 is subjected to force and is in close contact with the adjusting screw 14. By rotating and pressing the side fixing surface 221 of the tool holder 22 with the locking set screw 111, the tool head assembly 2 is firmly locked in the open inner cavity 13 of the reamer bar 1, ensuring that the tool head assembly 2 will not loosen during machining, thus improving machining stability and accuracy. At least two locking set screws 111 are used in each set and are symmetrically arranged. Figure 4 As shown, the tool holder 22 has two side fixing surfaces 221, and the included angle is set in the range of 2-10°.

[0027] In this embodiment, the second adjusting assembly 12 includes an annular boss 121 and a set of fine adjustment jackscrews 122, the annular boss 121 is arranged on the end face of the reamer rod 1, and a fine adjustment screw hole 1221 corresponding to the fine adjustment jack screw 122 is arranged on the radial side surface of the annular boss 121. The annular boss 121 provides stable support and installation basis for the fine adjustment jack screw 122, so that the fine adjustment jack screw 122 can function more effectively. During the machining process, the annular boss 121 can share part of the cutting force, reduce the impact on the fine adjustment jack screw 122, improve the stability of the entire second adjusting assembly 12, and the fine adjustment jack screw 122 can not only fine adjust the axis of the tool head assembly 2 to be consistent with the axis of the reamer rod 1, but also can apply pressure to the tool head assembly 2, which can further enhance the stability of the tool head assembly 2 in the open inner cavity 13, prevent it from shaking or moving during high-speed rotation and cutting process, thereby improving the stability and reliability of the machining. The number of the set of fine adjustment jackscrews 122 is 4, which are arranged symmetrically on the side surface of the annular boss 121, and can be fine adjusted from four directions.

[0028] In this embodiment, the reamer rod 1 side is provided with a set of blade grooves 15, and the blade 3 is arranged in the blade groove 15. The blade 3 is detachably connected in the blade groove 15, so that the user can replace different types of blades 3 according to different machining requirements, improving the flexibility and adaptability of the tool. When the blade is worn or damaged, only the blade 3 needs to be replaced without replacing the entire reamer rod 1, reducing the use cost. The reamer rod 1 is provided with 6 blade grooves 15 and corresponding 6 blades 3, and the cutting edge of the blade 3 is provided with CVD, PVD or DLC coating, which improves the service life and reduces the cost.

[0029] In this embodiment, the reamer rod 1 side is provided with a set of blade grooves 15, and the blade 3 is arranged in the blade groove 15. The blade 3 is detachably connected in the blade groove 15, so that the user can replace different types of blades 3 according to different machining requirements, improving the flexibility and adaptability of the tool. When the blade is worn or damaged, only the blade 3 needs to be replaced without replacing the entire reamer rod 1, reducing the use cost. The reamer rod 1 is provided with 6 blade grooves 15 and corresponding 6 blades 3, and the cutting edge of the blade 3 is provided with CVD, PVD or DLC coating, which improves the service life and reduces the cost.

[0030] In this embodiment, the blade groove 15 is provided with a pollution collecting groove 151. The pollution collecting groove 151 can collect impurities such as cutting chip particles and oil stains generated during cutting process, prevent these impurities from accumulating near the cutting edge of the blade 3, and thus keep the cutting edge clean. The clean cutting edge can better perform cutting, improving the machining quality and precision

[0031] In the embodiment, the reamer rod 1 is provided with water holes 17 on the side. The water holes 17 can be easily connected with an external cooling system to realize the circulating supply of cooling liquid, improve the stability and reliability of the cooling effect, and when the cooling liquid is sprayed from the water holes, a certain impact force can be generated to help wash away the chips from the cutting area.

[0032] In the embodiment, the reamer rod 1 is provided with an external connection mechanism 18 at the end away from the tool head assembly 2, and the external connection mechanism 18 is connected with the main shaft of the machine tool.

[0033] In the embodiment, the tool head 21 is provided with cooling water holes 211. The cooling water holes 211 are directly located on the tool head 21, and the cooling liquid can be directly sprayed to the cutting area to realize the accurate cooling of the cutting edge and the machined surface. The cutting edge of the tool head 21 is provided with a CVD, PVD or DLC coating to improve the service life and reduce the use cost.

[0034] The above embodiments are exemplary, and the purpose is to illustrate the technical concept and characteristics of the utility model, so that those skilled in the art can understand the content of the utility model and implement it accordingly, and the protection scope of the utility model cannot be limited thereby. Any equivalent changes or modifications made according to the spirit and essence of the utility model shall be covered within the protection scope of the utility model.

Claims

1. A modular adjustable reamer, characterized by: The reamer rod (1) is provided with an open inner cavity (13) along an axis, and the reamer rod (1) and the head assembly (2) are coaxially connected, the open inner cavity (13) is provided with an adjusting top screw (14), the open inner cavity (13) and the adjusting top screw (14) are threadedly connected, the reamer rod (1) is provided with a first adjusting assembly (11) on the side surface, and the second adjusting assembly (12) is arranged at the end of the reamer rod (1), the first adjusting assembly (11) adjusts the axis of the head assembly (2), and the second adjusting assembly (12) adjusts the connecting length of the head assembly (2) and the reamer rod (1).

2. A modular adjustable reamer according to claim 1, wherein: The head assembly (2) comprises a head (21) and a handle (22), a group of side fixing surfaces (221) are arranged on the handle (22), the head assembly (2) is embedded into the open inner cavity (13), the end of the handle (22) abuts against the end of the adjusting top screw (14), the first adjusting assembly (11) comprises a locking top screw (111) corresponding to the side fixing surface (221) and a locking threaded hole (112) matched with the locking top screw (111), the locking threaded hole (112) is arranged on the side surface of the reamer rod (1), the locking top screw (111) is perpendicular to the side fixing surface (221), the side fixing surface (221) is inwardly inclined to the axis of the head assembly (2), an included angle is formed, the head assembly (2) is locked in the open inner cavity (13) by rotating and extruding the side fixing surface (221), and the handle (22) is in close contact with the adjusting top screw (14) under stress.

3. A modular adjustable reamer according to claim 1, wherein: The second adjusting assembly (12) comprises an annular boss (121) and a group of fine adjustment top screws (122), the annular boss (121) is arranged on the end surface of the reamer rod (1), and a fine adjustment threaded hole (1221) corresponding to the fine adjustment top screw (122) is arranged on the radial side surface of the annular boss (121).

4. The modular adjustable reamer of claim 1, wherein: A group of blade grooves (15) are arranged on the side surface of the reamer rod (1), and a blade (3) is arranged in the blade groove (15) and can be detachably connected to the blade groove (15).

5. A modular adjustable reamer according to claim 4, wherein: A chip containing groove (16) corresponding to the blade groove (15) is arranged on one side of the blade groove (15), and a dispersion inner cooling hole (161) is arranged on the chip containing groove (16).

6. A modular adjustable reamer according to claim 4, wherein: A pollution containing groove (151) is arranged on the blade groove (15).

7. The modular adjustable reamer of claim 1, wherein: A water hole (17) is arranged on the side surface of the reamer rod (1), the water hole (17) is used for connecting an external cooling system to realize circulation supply of cooling liquid, and the cutting chips are washed away when the cooling liquid is sprayed out of the water hole (17).

8. The modular adjustable reamer of claim 1, wherein: An external connection mechanism (18) is arranged at the end of the reamer rod (1) away from the head assembly (2), and the external connection mechanism (18) is connected with a corresponding machine tool spindle.

9. The modular adjustable reamer of claim 1, wherein: A cooling water hole (211) is arranged on the head (21).

Images