Reamer for large-diameter hole machining

Abstract

The utility model discloses a reamer for large-diameter hole machining. The reamer comprises an anti-vibration reamer handle assembly, a reamer rod assembly, a reamer ring assembly and a pressing ring assembly. The anti-vibration cutter handle assembly comprises an anti-vibration cutter handle which is a lengthened hollow pipe. The reamer rod assembly is arranged at one end of the anti-vibration cutter handle assembly. The reamer ring assembly is arranged on the side, away from the anti-vibration cutter handle assembly, of the reamer rod assembly. The pressing ring assembly is arranged on the side, away from the anti-vibration cutter handle assembly, of the reamer ring assembly. The anti-vibration cutter handle is matched with the reamer rod assembly, the reamer ring assembly and the pressing ring assembly to achieve large-diameter hole machining. According to the reamer for large-diameter hole machining, the cutter machining parameters are improved, the takt is increased, and the use cost is reduced; the problems of cutter vibration, unstable aperture and poor cylindricity caused by machine tool problems are solved; the time for adjusting the cutter by personnel is saved, and the stable service life of the cutter ring is prolonged; the universality of the cutter bar is improved, and the cutter bar can be matched with various sections with different diameters.

Description

Technical Field

[0001] The utility model belongs to the field of mechanical processing, in particular to a reamer used for processing large-diameter holes. Background Art

[0002] In the current market environment, many machine tools used in machining sites are old, and the tension and torque of the machine tool spindles are not strong enough, which can easily lead to a series of problems during machining, such as large spindle runout, tool vibration, and tool falling due to excessive length.

[0003] Most of the currently used tools are mainly single-edged large-diameter adjustable boring cutters, which are inefficient, cannot effectively guarantee the cylindricity and diameter of the processed holes, and are prone to instability during the processing of product parts. Utility Model Content

[0004] Purpose of the utility model: In order to overcome the above shortcomings, the purpose of this utility model is to provide a reamer for large-diameter hole processing, improve tool processing parameters, increase cycle time, and reduce use costs; solve the problems of tool vibration, unstable aperture, and poor cylindricity caused by machine tool problems; save personnel time in adjusting the tool, and increase the stable service life of the knife ring; improve the versatility of the tool rod and match a variety of different diameter segments.

[0005] Technical solution: In order to achieve the above-mentioned purpose, the utility model provides a reamer for large-diameter hole processing, including an anti-vibration shank assembly, a reamer rod assembly, a reamer ring assembly and a pressure ring assembly; the anti-vibration shank assembly includes an anti-vibration shank, and the anti-vibration shank is an extended hollow tube; the reamer rod assembly is arranged at one end of the anti-vibration shank assembly; the reamer ring assembly is arranged on the side of the reamer rod assembly away from the anti-vibration shank assembly; the pressure ring assembly is arranged on the side of the reamer ring assembly away from the anti-vibration shank assembly; the anti-vibration shank cooperates with the reamer rod assembly, the reamer ring assembly and the pressure ring assembly to achieve large-diameter hole processing.

[0006] Furthermore, the anti-vibration shank assembly also includes an aluminum tube, an internal coolant tube, and an O-ring. The aluminum tube's center is positioned within the hollow structure of the anti-vibration shank. The internal coolant tube is located on the end of the aluminum tube away from the reamer rod assembly. The O-ring is positioned on the aluminum tube and located between the anti-vibration shank and the aluminum tube. The hollow structure of the anti-vibration shank facilitates weight reduction and vibration resistance. The aluminum tube guides the flow of cutting fluid, and the O-ring ensures stable flow and prevents leakage.

[0007] Furthermore, the reamer rod assembly includes a reamer rod, a plurality of hexagon socket head screws, an elastic cylindrical pin, and a plurality of adjustment screws. The reamer rod is disposed at the end of the anti-vibration shank away from the internal cooling tube and is connected to the anti-vibration shank via the plurality of hexagon socket head screws. The end faces of the reamer rod and the anti-vibration shank are connected via the elastic cylindrical pin. The adjustment screw is disposed through the wall of the anti-vibration shank away from the internal cooling tube and abuts against the reamer rod. The addition of the elastic cylindrical pin to the connection between the anti-vibration shank and the reamer rod prevents a slight drop of the cutter head due to excessive addition of parts to the front end of the reamer rod. The provision of the adjustment screw compensates for radial runout caused by the anti-vibration shank and the reamer rod.

[0008] Furthermore, the reamer ring assembly includes a reamer ring and a set of threaded pins; the reamer ring is assembled on the reamer rod and connected via the threaded pins. The threaded pins ensure the reliability of the connection between the reamer ring and the reamer rod.

[0009] Furthermore, the pressure ring assembly includes a pressure ring and a locking nut; the pressure ring is assembled on the reamer rod and is located next to the reamer ring; the locking nut is located next to the pressure ring and is connected to one end of the reamer rod. The locking nut ensures the reliability of the connection between the pressure ring and the reamer rod.

[0010] Furthermore, the reamer ring is a multi-blade annular reamer. The multi-blade design can provide effective support, ensure the stability of the cylindricity and hole diameter produced during processing, and improve efficiency.

[0011] Furthermore, the locking nut provides a pressing force to the pressure ring by locking with one end of the reamer rod, so that the pressure ring and the reamer ring form a line contact. The line contact evenly distributes the force and has higher strength and stability.

[0012] It can be seen from the above technical solution that the utility model has the following beneficial effects:

[0013] 1. This utility model is a reamer for machining large diameter holes. By setting elastic cylindrical pins and adjustment screws, etc., it solves the problems of tool vibration, unstable hole diameter, and poor cylindricity caused by machine tool problems; it saves the time of adjusting the tool and improves the stability and service life of the cutter ring;

[0014] 2. The utility model is a reamer for machining large-diameter holes, which improves tool machining parameters, increases cycle time, and reduces usage costs; it also improves the versatility of the tool shank and can match a variety of different diameter segments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of a reamer for machining large diameter holes according to the present invention;

[0016] Figure 2 This is a front view of a reamer for machining large diameter holes according to the present invention;

[0017] Figure 3 This is a first cross-sectional view of a reamer for machining large diameter holes according to the present utility model;

[0018] Figure 4 for Figure 3 A magnified view of the structure on the right;

[0019] Figure 5 for Figure 3 Magnified view of the structure on the left;

[0020] Figure 6 This is a second cross-sectional view of a reamer for machining large diameter holes according to the present invention;

[0021] Figure 7 for Figure 6 Magnified view of the structure on the left;

[0022] Figure 8 This is a partial structural diagram of a reamer for machining large diameter holes according to the present utility model;

[0023] Figure 9 This is a diagram showing the matching of a reamer rod and a reamer ring in a reamer for machining large diameter holes according to the present invention;

[0024] Figure 10 This is a diagram showing the matching of a pressure ring and a reamer ring in a reamer for machining large diameter holes according to the present invention;

[0025] Figure 11 This is a diagram showing the cooperation between the reamer rod and the locking nut in a reamer for machining large diameter holes according to the present invention;

[0026] In the picture:

[0027] 1- Anti-vibration handle assembly; 11- Anti-vibration handle; 12- Aluminum tube; 13- Internal cooling tube; 14- O-ring;

[0028] 2-reamer rod assembly; 21-reamer rod; 22-hexagon socket head screw; 23-elastic cylindrical pin; 24-adjusting screw;

[0029] 3-reamer ring assembly; 31-reamer ring; 32-threaded pin;

[0030] 4-pressure ring assembly; 41-pressure ring; 42-locking nut. DETAILED DESCRIPTION

[0031] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0032] Example 1

[0033] In this embodiment, Figure 1 The utility model discloses a reamer for large-diameter hole processing, comprising: an anti-vibration shank assembly 1, a reamer rod assembly 2, a reamer ring assembly 3 and a pressure ring assembly 4; the anti-vibration shank assembly 1 includes an anti-vibration shank 11, and the anti-vibration shank 11 is an elongated hollow tube; the reamer rod assembly 2 is arranged at one end of the anti-vibration shank assembly 1; the reamer ring assembly 3 is arranged on the side of the reamer rod assembly 2 away from the anti-vibration shank assembly 1; the pressure ring assembly 4 is arranged on the side of the reamer ring assembly 3 away from the anti-vibration shank assembly 1; the anti-vibration shank 11 cooperates with the reamer rod assembly 2, the reamer ring assembly 3 and the pressure ring assembly 4 to achieve large-diameter hole processing.

[0034] In this embodiment, Figures 1 to 4 The anti-vibration handle assembly 1 also includes an aluminum tube 12, an internal cooling tube 13 and an O-ring 14; the middle part of the aluminum tube 12 is arranged in the hollow structure inside the anti-vibration handle 11; the internal cooling tube 13 is arranged on the end of the aluminum tube 12 away from the reamer rod assembly 2; the O-ring 14 is arranged on the aluminum tube 12 and is located between the anti-vibration handle 11 and the aluminum tube 12.

[0035] Specifically, the conventional design adopts the method of hollowing out the middle hole of the tool rod to pass water. This method can be used for small diameters and normal conditions. For large diameter reamers, the tool rod length is nearly 500mm-700mm. In order to match the machine tool, the tool rod is hollowed to reduce weight. The hole in the middle of the tool rod is too large, resulting in too small a flow of water sprayed from the center internal cooling and unable to play an effective lubrication role; too much water in the middle produces a weight-increasing effect and the shaking caused by the water flow affects the stability of the actual cutting performance of the tool; through the extended hollow design of the anti-vibration tool holder 11, the tool rod and the tool holder are connected, and the aluminum tube 12 is used to ensure effective water flow output, ensuring sufficient internal cooling while making the cutting process more stable and reducing the overall weight of the tool rod.

[0036] Example 2

[0037] On the basis of Example 1, in this embodiment, as Figure 3 and Figure 5The reamer rod assembly 2 includes a reamer rod 21, a plurality of hexagon socket head screws 22, an elastic cylindrical pin 23 and a plurality of adjustment screws 24; the reamer rod 21 is arranged at the end of the anti-vibration shank 11 away from the inner cooling tube 13, and is connected to the anti-vibration shank 11 through a plurality of hexagon socket head screws 22; the reamer rod 21 is connected to the end surface of the anti-vibration shank 11 through the elastic cylindrical pin 23; the adjustment screw 24 is arranged through the tube wall of the end of the anti-vibration shank 11 away from the inner cooling tube 13, and rests on the reamer rod 21.

[0038] Specifically, the anti-vibration handle 11 and the reamer rod 21 are connected by a flange connection.

[0039] Specifically, the effective length of the reamer rod 21 is 20 mm, and the contact surface between the anti-vibration shank 11 and the reamer rod 21 is finely ground, so that the radial runout is effectively guaranteed to be within 3 μm during the assembly process.

[0040] In this embodiment, Figures 6 to 8 The reamer ring assembly 3 includes a reamer ring 31 and a set of threaded pins 32 ; the reamer ring 31 is assembled on the reamer rod 21 and connected by the threaded pins 32 .

[0041] Specifically, such as Figure 9 Marking lines are engraved on the outer circles of the reamer rod 21 and the reamer ring 31, and the marking lines are used to ensure the relative fixed position of the reamer ring 31 and the reamer rod 21 each time.

[0042] In this embodiment, Figure 3 、 Figure 5 and Figure 8 The pressure ring assembly 4 includes a pressure ring 41 and a locking nut 42; the pressure ring 41 is assembled on the reamer rod 21 and is arranged beside the reamer ring 31; the locking nut 42 is arranged beside the pressure ring 41 and is connected to one end of the reamer rod 21.

[0043] In this embodiment, Figures 6 to 8 , the reamer ring 31 is a multi-edged annular reamer.

[0044] Specifically, the multi-blade design of the reamer ring 31 can provide effective support to ensure the stability of the cylindricity and hole diameter produced during processing.

[0045] In this embodiment, Figure 3 、 Figure 5 and Figure 8 The locking nut 42 provides a pressing force to the pressure ring 41 by locking with one end of the reamer rod 21, so that the pressure ring 41 forms a line contact with the reamer ring 31.

[0046] Specifically, such as Figure 10The pressure ring 41 and the reamer ring 31 both adopt a precision-ground conical surface design, and the precision-ground outer conical surface of the pressure ring 41 cooperates with the precision-ground inner conical surface of the reamer ring 31.

[0047] In particular, such as Figure 11 The thread matching between the reamer rod 21 and the locking nut 42 adopts fine thread matching.

[0048] The working principle of the above embodiment is:

[0049] The utility model discloses a reamer for machining large-diameter holes. An end of an anti-vibration shank 11 near an internal cooling tube 13 is installed on a machine tool, driving the utility model to rotate axially, so that a reamer ring 31 machines the machining hole, and at the same time, cutting fluid cools and lubricates the reamer ring 31 through an aluminum tube 12.

[0050] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements can be made without departing from the principles of the present invention. These improvements should also be regarded as within the scope of protection of the present invention.

Claims

1. A reamer for machining large diameter holes, characterized by: include: An anti-vibration handle assembly (1), the anti-vibration handle assembly (1) comprising an anti-vibration handle (11), the anti-vibration handle (11) being an elongated hollow tube; A reamer rod assembly (2), wherein the reamer rod assembly (2) is arranged at one end of the anti-vibration handle assembly (1); A reamer ring assembly (3), the reamer ring assembly (3) being arranged on a side of the reamer rod assembly (2) away from the anti-vibration handle assembly (1); A pressure ring assembly (4), the pressure ring assembly (4) being arranged on a side of the reamer ring assembly (3) away from the anti-vibration handle assembly (1); The anti-vibration tool handle (11) cooperates with the reamer rod assembly (2), the reamer ring assembly (3) and the pressure ring assembly (4) to achieve large-diameter hole processing.

2. The reamer for machining large diameter holes according to claim 1, characterized in that: The anti-vibration shank assembly (1) further includes an aluminum tube (12), an internal cooling tube (13) and an O-ring (14); The middle portion of the aluminum tube (12) is arranged in the hollow structure inside the anti-vibration shank (11); the inner cooling tube (13) is arranged on one end of the aluminum tube (12) away from the reamer rod assembly (2); and the O-ring (14) is arranged on the aluminum tube (12) and is located between the anti-vibration shank (11) and the aluminum tube (12).

3. The reamer for machining large diameter holes according to claim 2, characterized in that: The reamer rod assembly (2) comprises a reamer rod (21), a plurality of hexagon socket head screws (22), an elastic cylindrical pin (23) and a plurality of adjustment screws (24); The reamer rod (21) is arranged at one end of the anti-vibration shank (11) away from the inner cooling tube (13), and is connected to the anti-vibration shank (11) through a plurality of hexagonal cylindrical head screws (22); the end faces of the reamer rod (21) and the anti-vibration shank (11) are connected through elastic cylindrical pins (23); the adjustment screw (24) is arranged through the wall of the end of the anti-vibration shank (11) away from the inner cooling tube (13), and abuts against the reamer rod (21).

4. The reamer for machining large diameter holes according to claim 3, characterized in that: The reamer ring assembly (3) comprises a reamer ring (31) and a set of threaded pins (32); The reamer ring (31) is assembled on the reamer rod (21) and is connected via a threaded pin (32).

5. The reamer for machining large diameter holes according to claim 4, characterized in that: The pressure ring assembly (4) comprises a pressure ring (41) and a locking nut (42); The pressure ring (41) is assembled on the reamer rod (21) and is arranged beside the reamer ring (31); the locking nut (42) is arranged beside the pressure ring (41) and is connected to one end of the reamer rod (21).

6. The reamer for machining large diameter holes according to claim 3, characterized in that: The reamer ring (31) is a multi-edged annular reamer.

7. The reamer for machining large diameter holes according to claim 5, characterized in that: The locking nut (42) provides a pressing force to the pressure ring (41) by locking with one end of the reamer rod (21), so that the pressure ring (41) forms a line contact with the reamer ring (31).

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