Reverse groove turning tool structure capable of machining reverse ring groove

Abstract

The utility model provides a reverse groove turning tool structure capable of machining a reverse ring groove. The cutter body structure is connected with the cutter handle; the welding blade is mounted on the cutter body structure; the cutter body structure comprises a first cone connected with the cutter handle, a second cone connected with the first cone and a welding blade mounting table connected with the second cone, a receding area is formed in the side wall part of the second cone, the welding blade mounting table extends towards the receding area, and the welding blade is mounted at the end, extending towards the receding area, of the welding blade. By means of the reverse groove turning tool structure, an inner ring groove in the reverse face of the workpiece can be machined with better coaxiality and location degree under the condition that the workpiece is not turned over. Due to the arrangement of different cone angles of the cutter body structure, the strength of the cutter is guaranteed, the risk of cutter vibration is reduced, and due to the arrangement that the two side face fixing end faces are ground on the cutter handle part, multiple modes of round handle type cutter handle clamping and mechanical torsion type pressing can be used.

Description

Technical Field

[0001] This utility model relates to the field of machining, and in particular to a reverse groove turning tool structure capable of machining reverse annular grooves. Background Technology

[0002] In existing technologies, for shaft parts, especially those requiring the machining of annular grooves in the inner hole on the reverse side, the conventional machining process typically involves first removing the workpiece from the machine tool, then flipping it so that the original reverse side is facing upwards, and then reclamping the part. Next, a grooving tool is used to machine the flipped workpiece to complete the cutting of the annular groove. For example... Figure 1 As shown, after the workpiece is machined, it is flipped over to machine an inner annular groove with a depth of t1 and a width of t2, thus completing the cutting of the annular groove.

[0003] In the process of developing the existing technology, the inventors discovered that:

[0004] Because it is difficult to ensure that the workpiece is completely consistent with the previous clamping position during the flipping and reclamping process, especially in high-precision machining, the coaxiality and position of the workpiece may deviate significantly, affecting the final quality of the workpiece.

[0005] Therefore, this application provides a reverse grooving turning tool solution for machining reverse annular grooves that can guarantee the machining quality of the workpiece, in order to solve the problem in the prior art that the coaxiality and position of the workpiece may deviate significantly during the workpiece flipping and reclamping process. Utility Model Content

[0006] The purpose of this invention is to provide a reverse-grooving turning tool solution for machining reverse annular grooves that can guarantee the machining quality of the workpiece, in order to solve the problem in the prior art that the coaxiality and position of the workpiece may deviate significantly during the workpiece flipping and reclamping process.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a reverse-grooving turning tool structure capable of machining reverse annular grooves, comprising: a tool holder; a tool body structure connected to the tool holder; and a welding insert mounted on the tool body structure; the tool body structure includes a first cone connected to the tool holder, a second cone connected to the first cone, and a welding insert mounting platform connected to the second cone; a clearance area is partially formed on the side wall of the second cone; the welding insert mounting platform extends toward the clearance area; and the welding insert is mounted on the end of the welding insert extending toward the clearance area.

[0008] Preferably, the first cone and the second cone have different taper angles, with the first cone having a taper angle between 30° and 50° and the second cone having a taper angle between 4° and 6°.

[0009] Preferably, a circular arc transition angle is provided between the first cone and the second cone, and the circular arc transition angle is between 5mm and 10mm.

[0010] Preferably, the relationship between the distance L1 that the welding blade mounting table extends toward the clearance area and the inner annular groove at a depth t1 of the workpiece to be processed is as follows:

[0011] t1 / 2 <L1<t1。

[0012] Preferably, the relationship between the length L2 of the second cone and the inner annular groove at a depth t1 on the workpiece to be processed is as follows:

[0013] t1+L1+5 <L2<t1。

[0014] Preferably, the relationship between the width 'a' of the welding blade and the width 't2' of the inner annular groove is as follows:

[0015] t2 / 2 <a≤t2。

[0016] Preferably, the side wall end face of the tool holder has two symmetrically arranged side fixing end faces.

[0017] Compared with the prior art, the advantages and positive effects of this utility model are as follows: The reverse grooving tool structure of this application enables the machining of the inner annular groove on the reverse side of the workpiece with better coaxiality and positional accuracy without flipping the workpiece. The different cone angles of the tool body structure ensure the strength of the tool and reduce the risk of tool vibration. The tool shank is equipped with two side fixing end faces, allowing for various clamping methods, including round shank clamping and mechanical torsion clamping. Attached Figure Description

[0018] Figure 1 A schematic diagram of the cross-sectional view of the workpiece to be processed provided by this utility model;

[0019] Figure 2 This is a schematic diagram of the reverse grooving tool structure provided by this utility model;

[0020] Figure 3 A schematic diagram illustrating the machining of a workpiece using the reverse-grooving tool structure provided by this utility model;

[0021] Illustration: 100, reverse grooving tool structure;

[0022] 1. Tool holder; 11. Side fixing end face;

[0023] 2. Tool body structure; 21. First cone; 22. Second cone; 23. Circular transition angle; 24. Welding tool mounting table;

[0024] 3. Welding blades;

[0025] 4. Workpiece to be processed; 41. Inner annular groove. Detailed Implementation

[0026] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0028] Please see Figures 1 to 3 , Figure 1 In a preferred embodiment provided by this application, as shown in the figure, the conventional processing procedure for the workpiece 4 is as follows: first, one end of the workpiece is machined using a lathe tool. After machining, the workpiece is flipped over to machine the other end, including the inner ring groove 41. Because it is difficult to ensure that the workpiece is completely consistent with its previous clamping position during flipping and reclamping, especially in high-precision machining, the coaxiality and positional accuracy of the workpiece may deviate significantly, affecting the final quality of the workpiece. Moreover, this processing method increases processing time, raises costs, and reduces the efficiency of workpiece machining.

[0029] Based on the above issues, please refer to Figure 2 The present application provides a reverse grooving tool structure 1100 capable of machining reverse annular grooves, comprising: a tool holder 1; a tool body structure 2 connected to the tool holder 1; and a welding insert 3 mounted on the tool body structure 2. The tool body structure 2 includes a first cone 21 connected to the tool holder 1, a second cone 22 connected to the first cone 21, and a welding insert mounting platform 24 connected to the second cone 22. A clearance area (not shown in the figure) is partially opened on the side wall of the second cone 22. The welding insert mounting platform 24 extends toward the clearance area, and the welding insert 3 is mounted on the end of the welding insert mounting platform 24 extending toward the clearance area.

[0030] Specifically, in the reverse grooving tool structure 1100, the tool holder 1 has two symmetrically arranged side fixing end faces 11 on its side wall end face. This arrangement ensures the interchangeability and versatility of the tool, reduces customization requirements, lowers production costs, and allows users to use the same tool on different machine tools.

[0031] The first cone 21 and the second cone 22 in the tool body structure 2 are designed to ensure stable vibration resistance of the reverse grooving tool structure 1100. Specifically, the first cone 21 and the second cone 22 have different taper angles: the taper angle of the first cone 21 is between 30° and 50°, and the taper angle of the second cone 22 is between 4° and 6°. It can be understood that the double cone design better prevents vibration generated during machining. In a preferred embodiment provided in this application, the taper angle of the first cone 21 is preferably 30° (15° on one side) or 4° (2° on one side).

[0032] Understandably, the taper angle of the second cone 22 cannot be too large, otherwise it will shorten the length of the second cone 22, leading to interference. The taper angle of the first cone 21 can be appropriately large to ensure that the first cone 21 and the second cone 22 have high strength and high stability, reducing the risk of tool vibration.

[0033] Furthermore, a circular arc transition angle 23 is provided between the first cone 21 and the second cone 22, and the circular arc transition angle 23 is between 5mm and 10mm. It can be understood that the setting of the transition angle is also to ensure that the cutter body structure 2 has high strength.

[0034] The second cone 22 also has a clearance zone on its side wall. It should be understood that when the reverse grooving tool structure 1100 is machining the annular groove on the reverse side of the workpiece 4, the second cone 22 may interfere with the workpiece 4. By setting the clearance zone, the movement space of the reverse grooving tool can be increased, and the possibility of interference can be reduced.

[0035] The welding blade mounting table 24 is used for mounting the welding blade 3. One end of the welding blade 3 is connected to the second cone 22, and the other end extends towards the clearance area. This configuration allows the welding blade mounting table 24 to machine the inner annular groove 41 on the reverse side of the workpiece 4 after the tool is mounted. This avoids the problem of large deviations in coaxiality and position caused by the need to flip and reclamp the workpiece 4. Furthermore, this structure also solves the time cost and downtime costs associated with previous flipping and reclamping processes, thereby improving workpiece machining efficiency.

[0036] Specifically, the relationship between the distance L1 that the welding blade mounting table 24 extends toward the clearance area and the inner annular groove 41 at a depth t1 of the workpiece 4 to be processed is as follows:

[0037] t1 / 2 <L1<t1。

[0038] It should be understood that this distance is set primarily to ensure the strength of the welding blade mounting platform 24.

[0039] Specifically, the relationship between the length L2 of the second cone 22 and the inner annular groove 41 at a depth t1 of the workpiece 4 to be processed is as follows:

[0040] t1+L1+5 <L2<t1。

[0041] It should be understood that this distance is set primarily to avoid interference from the second cone 22 with the workpiece 4 to be processed during the machining process.

[0042] Specifically, the relationship between the width a of the welding blade 3 and the width t2 of the inner annular groove 41 is as follows:

[0043] t2 / 2 <a≤t2。

[0044] It should be understood that this distance is set primarily to enable the machining of the inner annular groove 41 by the welding blade 3.

[0045] Furthermore, the welding blade 3 can rotate according to the material of the workpiece 4, such as steel (tungsten steel / cermet), cast iron (tungsten steel), non-ferrous metals (tungsten steel / polycrystalline diamond), and superhard materials (tungsten steel / cubic boron nitride).

[0046] Please see Figure 3 This is a schematic diagram of the reverse annular groove on the workpiece 4 being machined using the reverse grooving tool structure 1100 provided in this application. It can be seen that after machining one end of the workpiece 4, there is no need to flip the workpiece 4 and re-clamp it; it is only necessary to replace it with the reverse grooving tool structure 1100 provided in this application and insert it into the workpiece from one end to machine the reverse annular groove.

[0047] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A reverse slotter tool structure capable of machining reverse face ring slots, characterised in that, The utility model relates to a welding blade structure of a welding machine, comprising: A handle; A tool body structure connected with the handle; A welding blade installed on the tool body structure; The tool body structure comprises a first taper connected with the handle, a second taper connected with the first taper, and a welding blade mounting platform connected with the second taper, wherein the side wall of the second taper is provided with a clearance, the welding blade mounting platform extends towards the clearance, and the welding blade is installed on the welding blade mounting platform and extends towards the clearance.

2. The contra-slotter structure according to claim 1, wherein The taper angles of the first taper and the second taper are different, the taper angle of the first taper is between 30 DEG and 50 DEG, and the taper angle of the second taper is between 4 DEG and 6 DEG.

3. The contra-slotter structure of claim 2 wherein, An arc transition angle is further arranged between the first taper and the second taper, and the arc transition angle is between 5mm and 10mm.

4. The contra-slotter structure of claim 1 wherein, The relationship between the distance L1, at which the welding blade mounting platform extends towards the clearance, and the inner ring groove at the depth t1 of the workpiece to be processed is as follows: t1 / 2 < L1 < t1.

5. The contra-slit tool structure according to claim 1, wherein The relationship between the length L2 of the second taper and the inner ring groove at the depth t1 of the workpiece to be processed is as follows: t1 + L1 + 5 < L2 < t1.

6. The contra-slotter structure of claim 1 wherein, The relationship between the width a of the welding blade and the width t2 of the inner ring groove is as follows: t2 / 2 < a <= t2.

7. The contra-slit tool structure according to claim 1, wherein The side wall end face of the handle is provided with two symmetrical side fixing end faces.

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