Milling reamer for machining high-precision cylindrical holes with medium and small diameters

Abstract

The utility model provides a high-precision milling reamer for machining cylindrical holes with medium and small diameters, which belongs to the technical field of milling reamers, and comprises a reamer head, a connecting component detachably connected onto the connecting block and used for being connected with the reamer head, and a milling reamer assembly detachably connected onto the connecting block and used for being connected with the reamer head. The reinforcing assembly is fixed outside the connecting assembly, and the reinforcing assembly is used for assisting the connecting assembly; the connecting assembly is arranged on the cutter head, the cooling channel is formed in the cutter head and the connecting assembly, a lubricating channel is formed outside the cooling channel, and due to the fact that the connecting assembly is arranged, the cutter head can be rapidly replaced only by pressing the button, and tools are not needed; the tool bit can be conveniently and quickly mounted and dismounted; according to the utility model, the reinforcing assembly is arranged, and through mutual cooperation of the limiting cylinder, the upper rod, the lower rod, the magnetic block and other mechanisms, the button can be conveniently limited, mistaken touch can be prevented, the connection effect can be conveniently enhanced, and the auxiliary connecting assembly can be conveniently and rapidly mounted and dismounted.

Description

Technical Field

[0001] The utility model relates to the technical field of milling reamers, in particular to a high-precision milling reamer for machining cylindrical holes with medium and small diameters. Background Art

[0002] Currently, reamers are rotating tools with one or more teeth, used to ream workpieces after drilling or reaming. These tools are known as finishing tools with straight or helical edges. Common reamers are often made of high-speed steel and carbide. These tools have low speeds and feed rates, resulting in long cycle times, poor surface finish, and short tool life. Specialized reamers, such as those with replaceable inserts, offer superior cutting performance but are more expensive and uneconomical.

[0003] Chinese patent publication number CN220838119U discloses a milling reamer for finishing. It comprises a shank and a milling head, which are integrally structured, with the shank, reamer, and milling head arranged coaxially. The utility model utilizes an Allen wrench to rotate a hexagon socket bolt, threadedly connecting the milling head and reamer head through a threaded hole. If the milling head wears rapidly during subsequent use, the hexagon socket bolt can be reversed to remove the milling head and install a new one, eliminating the need to replace the entire milling reamer.

[0004] Although the above technical solution can replace the milling cutter head, it is still necessary to use tools to loosen the hexagonal bolts during replacement. After replacing the new milling cutter head, the tools are used again to tighten the hexagonal bolts. This process is relatively cumbersome and inconvenient to replace the milling cutter head. For this reason, we propose a high-precision milling reamer for machining small and medium diameter cylindrical holes. Utility Model Content

[0005] The utility model aims to solve the deficiencies in the prior art and provides a high-precision milling reamer for machining cylindrical holes of medium and small diameters. The cutter head can be quickly replaced by cooperating with a connecting component and a reinforcing component.

[0006] In order to solve the above technical problems, the present invention solves the problem that the existing milling reamer is inconvenient to replace through the following technical solutions.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A high-precision milling reamer for machining small and medium diameter cylindrical holes comprises a cutter head, the top of which is fixedly connected to a connecting block, and further comprises: a connecting assembly detachably connected to the connecting block, the connecting assembly being used to connect the cutter head; and a reinforcing assembly fixed to the outside of the connecting assembly, the reinforcing assembly being used to assist the connecting assembly; and a cooling channel provided inside the cutter head and the connecting assembly, the outside of the cooling channel being provided with a lubrication channel.

[0009] Preferably, the connecting assembly includes a fixing block, the top of which is fixedly connected to the machine, and a through hole is provided inside the fixing block, the size of which is adapted to the connecting block.

[0010] Preferably, a card slot is symmetrically opened inside the fixed block, a spring is fixedly connected inside the card slot, a pressure block is fixedly connected to the other end of the spring, a push rod is fixedly connected to the side of the pressure block close to the spring, and the other end of the push rod passes through and extends to the outside of the fixed block.

[0011] Preferably, one end of the push rod away from the pressing block is fixedly connected to a button, and the outside of the button is fixedly connected to a soft pad.

[0012] Preferably, the connection block is symmetrically provided with mounting grooves, the insides of the two mounting grooves are fixedly connected with spring plates, the ends of the two spring plates away from each other are fixedly connected with slide plates, and the two slide plates are slidably connected to the mounting grooves.

[0013] Preferably, ends of the two slides that are away from each other are fixedly connected with a clamping block, and the sizes of the two clamping blocks are adapted to the clamping slots.

[0014] Preferably, the reinforcement assembly includes a limiting cylinder, which is symmetrically fixed on the outside of the fixed block. The tops of the two limiting cylinders are fixedly connected to limiting plates, and the insides of the two limiting plates are movably provided with movable rods.

[0015] Preferably, the exteriors of the two movable rods are fixedly connected to upper rods, the lower portions of the two upper rods are fixedly connected to lower rods, and the ends of the two upper rods and lower rods that are away from each other are fixedly connected to magnetic blocks.

[0016] Preferably, the exteriors of the two movable rods are fixedly connected to connecting rods, and the exteriors of the two connecting rods are fixedly connected to handles.

[0017] Preferably, the interiors of the two push rods are provided with limiting holes, and the sizes of the two limiting holes are adapted to the movable rod.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The utility model is provided with a connecting assembly, through the cooperation of the fixed block, the card slot, the card block, the spring, the pressure block and the push rod, etc., the cutter head can be quickly replaced by pressing a button without the help of tools; it is convenient for quick installation and removal of the cutter head;

[0020] 2. The utility model is provided with a reinforcement component, which cooperates with the limit cylinder, upper rod, lower rod and magnetic block to facilitate the limitation of the button, prevent accidental touch, strengthen the connection effect, and facilitate the rapid installation and disassembly of the auxiliary connection component. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a side view of the overall structure of the utility model;

[0024] Figure 3 It is a schematic diagram of the local structure of the utility model;

[0025] Figure 4 This is a cross-sectional view of the connection component structure of the utility model Figure 1 ;

[0026] Figure 5 This is a cross-sectional view of the connection component structure of the utility model Figure 2 ;

[0027] Figure 6 for Figure 4 A schematic diagram of the enlarged structure of the middle A area;

[0028] Explanation of the figure numbers: 1. Cutting head; 2. Connecting block; 3. Connecting assembly; 4. Reinforcement assembly; 5. Fixing block; 6. Through hole; 7. Slot; 8. Spring; 9. Pressure block; 10. Push rod; 11. Limiting hole; 12. Button; 13. Cushion; 14. Mounting slot; 15. Shrapnel; 16. Slide plate; 17. Block; 18. Cooling channel; 19. Limiting cylinder; 20. Limiting plate; 21. Movable rod; 22. Lower rod; 23. Upper rod; 24. Magnetic block; 25. Connecting rod; 26. Handle; 27. Lubrication channel. DETAILED DESCRIPTION

[0029] The present invention is described in further detail below with reference to the accompanying drawings.

[0030] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are for illustrative purposes only, and those skilled in the art will readily appreciate other obvious variations. The basic principles of the present invention as defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0031] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "transverse", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate directions or positions are based on the directions or positional relationships shown in the accompanying drawings, which are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the above terms should not be understood as limitations on the present invention.

[0032] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the elements may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0033] Example 1:

[0034] See also Figure 1 - Figure 6 A high-precision milling reamer for machining small and medium-sized cylindrical holes, comprising a cutter head 1, with a connecting block 2 fixedly connected to the top of the cutter head 1, and also comprising: a connecting component 3 detachably connected to the connecting block 2, the connecting component 3 being used to connect the cutter head 1, facilitating the installation and replacement of the cutter head 1, thereby simplifying the installation steps and facilitating user use; and a reinforcing component 4 fixed to the outside of the connecting component 3, the reinforcing component 4 being used to assist the connecting component 3, facilitating the stability of the connecting component 3 and preventing accidental touch; and a cooling channel 18 opened inside the cutter head 1 and the connecting component 3, the cooling channel 18 facilitating the passage of coolant, thereby contributing to heat dissipation, a lubrication channel 27 being opened outside the cooling channel 18, the lubrication channel 27 being used to pass lubricating oil, facilitating the extension of the service life of the cutter head, which is a conventional setting in the art and will not be described in detail here.

[0035] It should be noted that the connecting component 3 includes a fixed block 5, the top of the fixed block 5 is fixedly connected to the machine, a through hole 6 is provided inside the fixed block 5, the size of the through hole 6 is adapted to the connecting block 2, so that the connecting block 2 is easily inserted into the through hole 6, and a card slot 7 is symmetrically provided inside the fixed block 5. A spring 8 is fixedly connected to the inside of the card slot 7, and a pressure block 9 is fixedly connected to the other end of the spring 8. The pressure block 9 is trapezoidal, and the card slot 7 provides an installation space for the pressure block 9. A push rod 10 is fixedly connected to the side of the pressure block 9 close to the spring 8. The spring 8 is sleeved on the outside of the push rod 10 and can drive the push rod 10 and the pressure block 9 to reset. The other end of the push rod 10 passes through and extends to the outside of the fixed block 5.

[0036] Further, such as Figure 4 、 Figure 5 and Figure 6 As shown, in addition, the push rod 10 is fixedly connected to the button 12 at one end away from the pressure block 9. By pressing the button 12, the pressure block 9 can be driven to move by the push rod 10, thereby facilitating the connection block 2 to quickly detach from the fixed block 5. The outside of the button 12 is fixedly connected to a soft pad 13. The soft pad 13 is made of rubber and has a certain elasticity. The interior of the connection block 2 is symmetrically provided with mounting grooves 14. The interiors of the two mounting grooves 14 are fixedly connected with spring pieces 15. The spring pieces 15 are elastic. The ends of the two spring pieces 15 away from each other are fixedly connected with slides 16. The two slides 16 are slidably connected to the mounting grooves 14. The ends of the two slides 16 away from each other are fixedly connected with a card block 17. The card block 17 is trapezoidal in shape. When the spring piece 15 is in a natural state, the card block 17 fits in with the surface of the pressure block 9 but does not affect each other. The size of the two card blocks 17 is adapted to the card slot 7.

[0037] It should be noted that by pressing the button 12, the button 12 drives the pressure block 9 to squeeze the card block 17 through the push rod 10. Under the action of the spring 15, the card block 17 retracts into the installation groove 14, so that the connecting block 2 can be separated from the fixed block 5 and the purpose of quickly replacing the cutter head 1 can be achieved, thereby ensuring the user's convenience and effectively avoiding the inconvenience of replacing the cutter head 1 due to the inability to find tools.

[0038] Example 2:

[0039] On the basis of Example 1, according to Figure 5 and Figure 6 As shown, it is worth mentioning that the reinforcing component 4 includes a limiting cylinder 19, which is symmetrically fixed on the outside of the fixed block 5. The upper parts of the two limiting cylinders 19 are fixedly connected to the limiting plates 20. The interiors of the two limiting plates 20 are movably provided with movable rods 21, which are made of stainless steel. The ends of the limiting cylinders 19 and the limiting plates 20 that are close to each other are provided with iron blocks, and iron rings, iron rods, etc. can also be used without limitation.

[0040] The outer parts of the two movable rods 21 are fixedly connected to the upper rod 22, and the lower rods 23 are fixedly connected just below the two upper rods 22. The ends of the two upper rods 22 and the lower rods 23 that are away from each other are fixedly connected to the magnetic blocks 24. The magnetic blocks 24 attract each other with the iron blocks on the limit cylinder 19 and the limit plate 20, which is convenient for strengthening the connecting assembly 3. Whether replacing or installing the cutter head 1, it is only necessary to pull the movable rod 21 upward or downward to facilitate the work of the connecting assembly 3, simplifying the replacement and installation steps, without the need for tools, which is convenient and quick. The outer parts of the two movable rods 21 are fixedly connected to the connecting rod 25, and the outer parts of the two connecting rods 25 are fixedly connected to the handle 26. The handle 26 is provided with an anti-slip rubber sleeve on the outside for the convenience of users. The interior of the two push rods 10 is provided with a limiting hole 11, and the size of the two limiting holes 11 is adapted to the movable rod 21. The limiting hole 11 makes it easy for the reinforcing assembly 4 to stabilize the connecting assembly 3, and at the same time it is easy to prevent the user from accidentally touching it, which is beneficial to improving the practicality of the device.

[0041] In this solution, when the cutter head 1 needs to be replaced, the working principle is as follows:

[0042] First, when the cutter head 1 needs to be replaced, the handle 26 is pulled upward, and then the lower rod 23 is separated from the limiting cylinder 19, and then the upper rod 22 is moved close to the limiting plate 20, so that the movable rod 21 is separated from the limiting hole 11;

[0043] Next, press the button 12, which drives the pressing block 9 to squeeze the clamping block 17 through the push rod 10. Under the action of the spring 15, the clamping block 17 retracts into the mounting groove 14, and the connecting block 2 is separated from the fixing block 5.

[0044] Finally, insert the connecting block 2 on the top of the new drill bit 1 into the inside of the through hole 6, and then insert the blocking block 17 into the inside of the card slot 7. Then, use the handle 26 to move the magnetic block 24 under the lower rod 23 close to the limiting cylinder 19, so that the bottom of the movable rod 21 is inserted into the limiting hole 11 to complete the installation and disassembly.

[0045] Those skilled in the art will appreciate that the embodiments of the present invention described above and shown in the accompanying drawings are intended only as examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments. Any variations or modifications may be made to the embodiments of the present invention without departing from the principles.

Claims

1. A high-precision milling reamer for machining cylindrical holes of small and medium diameters, comprising a cutter head (1), the top of which is fixedly connected to a connecting block (2). It is characterized by: Also includes: a connecting assembly (3) detachably connected to the connecting block (2), wherein the connecting assembly (3) is used to connect the cutter head (1); and a reinforcing component (4) fixed to the outside of the connecting component (3), the reinforcing component (4) being used to assist the connecting component (3); and A cooling channel (18) is provided inside the cutter head (1) and the connecting assembly (3), and a lubrication channel (27) is provided outside the cooling channel (18).

2. A high-precision milling reamer for machining small and medium diameter cylindrical holes according to claim 1, characterized in that: The connecting assembly (3) comprises a fixing block (5), the top of which is fixedly connected to the machine, and a through hole (6) is provided inside the fixing block (5), the size of which is adapted to that of the connecting block (2).

3. A high-precision milling reamer for machining small and medium diameter cylindrical holes according to claim 2, characterized in that: A card slot (7) is symmetrically provided inside the fixed block (5), a spring (8) is fixedly connected inside the card slot (7), a pressure block (9) is fixedly connected to the other end of the spring (8), a push rod (10) is fixedly connected to the side of the pressure block (9) close to the spring (8), and the other end of the push rod (10) passes through and extends to the outside of the fixed block (5).

4. A high-precision milling reamer for machining small and medium diameter cylindrical holes according to claim 3, characterized in that: One end of the push rod (10) away from the pressing block (9) is fixedly connected to a button (12), and the outside of the button (12) is fixedly connected to a soft pad (13).

5. A high-precision milling reamer for machining small and medium diameter cylindrical holes according to claim 1, characterized in that: The connection block (2) is symmetrically provided with mounting grooves (14), the interiors of the two mounting grooves (14) are fixedly connected with spring plates (15), the ends of the two spring plates (15) that are away from each other are fixedly connected with slide plates (16), and the two slide plates (16) are slidably connected to the mounting grooves (14).

6. A high-precision milling reamer for machining small and medium diameter cylindrical holes according to claim 5, characterized in that: The ends of the two slides (16) that are away from each other are both fixedly connected with a clamping block (17), and the sizes of the two clamping blocks (17) are adapted to the clamping slot (7).

7. A high-precision milling reamer for machining small and medium diameter cylindrical holes according to claim 1, characterized in that: The reinforcing assembly (4) includes a limiting cylinder (19), which is symmetrically fixedly mounted on the outside of the fixed block (5), and a limiting plate (20) is fixedly connected to the top of the two limiting cylinders (19), and a movable rod (21) is movably provided inside the two limiting plates (20).

8. A high-precision milling reamer for machining small and medium diameter cylindrical holes according to claim 7, characterized in that: The exteriors of the two movable rods (21) are fixedly connected to upper rods (22), the lower portions of the two upper rods (22) are fixedly connected to lower rods (23), and the ends of the two upper rods (22) and lower rods (23) that are away from each other are fixedly connected to magnetic blocks (24).

9. A high-precision milling reamer for machining small and medium diameter cylindrical holes according to claim 7, characterized in that: The exteriors of the two movable rods (21) are fixedly connected to connecting rods (25), and the exteriors of the two connecting rods (25) are fixedly connected to handles (26).

10. A high-precision milling reamer for machining small and medium diameter cylindrical holes according to claim 3, characterized in that: A limiting hole (11) is provided inside each of the two push rods (10), and the sizes of the two limiting holes (11) are adapted to the movable rod (21).

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