Tool for deep hole machining

Abstract

The utility model discloses a tool for deep hole processing, which comprises a rod part and a tool head which are coaxially connected and communicated, the tool head comprises a coarse grinding part and a fine grinding part which are coaxially arranged, the outer diameter of the coarse grinding part is smaller than that of the fine grinding part, and an oil feeding groove extending along the axial direction of the tool head is arranged on the inner wall of the tool head. An oil discharging groove extending in the axial direction of the tool head is formed in the outer wall of the tool head, a plurality of oil outlets are formed in the end, away from the coarse grinding part, of the fine grinding part, and the oil outlets penetrate through the fine grinding part in the radial direction. By adopting the integrated structure of the rough grinding part and the accurate grinding part, the roughness, the roundness and the transparency after the hole is machined are ensured, the precision and the machining efficiency of the machined glass material are improved, the polishing process is effectively omitted, one-time machining forming is realized, the overall structure is simple, the implementation is convenient, and the cost is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to deep hole machining technical field, concretely relates to a deep hole machining tool for deep hole machining forming. BACKGROUND

[0002] The grinding head of deep hole machining is a grinding tool specially used for deep hole machining, mainly used for precision grinding of deep holes. Its structure is disclosed in a brittle material deep hole machining grinding head with patent number CN215357579U, which includes a tool bar (1) and a grinding head (2) at the end of the tool bar (1) for grinding brittle materials. The tool bar (1) is provided with a cutting fluid guide hole (11) extending along the axial direction. The center of the grinding head (2) is provided with an eccentric through hole (21). The inlet of the eccentric through hole (21) is connected to the end of the cutting fluid guide hole (11), and the outlet of the eccentric through hole (21) is located at the top end of the grinding head (2). Such grinding head structure can only perform single rough grinding or fine grinding, with low processing efficiency, poor forming smoothness, large inlet and outlet deviation, the need for multiple process machining, complex trimming process, poor operability, large machining precision error, and difficult to meet the demand for use effect. SUMMARY

[0003] The utility model discloses in order to avoid the deficiency that exists in the prior art, provides a deep hole machining tool of one forming.

[0004] The utility model discloses a deep hole machining tool, including the same coaxial connection and the intercommunication of rod portion and tool head, the tool head includes the coaxial arrangement of rough grinding part and fine grinding part, the outer diameter of rough grinding part is less than the outer diameter of fine grinding part, the oil supply groove of extending along its axial direction is provided on the inner wall of tool head, the oil discharge groove of extending along its axial direction is provided on the outer wall of tool head, the multiple oil outlets are set up in the end of fine grinding part away from rough grinding part, and the oil outlet is radially through fine grinding part.

[0005] In several embodiments, there is a spacing between the oil discharge groove, the oil outlet and the oil supply groove.

[0006] In several embodiments, the first butt joint groove is provided on the inwardly recessed end of the fine grinding part away from the rough grinding part.

[0007] In several embodiments, the rod portion includes a main rod body and a connecting rod body, and the connecting rod body is arranged between the tool head and the main rod body.

[0008] In several embodiments, the first butt joint ring is provided on the outwardly protruding end of the connecting rod body, and the first butt joint ring is inserted and matched with the first butt joint groove.

[0009] In several embodiments, the second butt joint ring is provided on the protruding end of the connecting rod body, and the second butt joint ring is inserted and matched with the main rod body.

[0010] In several embodiments, at least one supporting sleeve and at least one positioning sleeve are sleeved on the main rod body.

[0011] The utility model discloses the beneficial effect lies in:

[0012] The utility model discloses a rough grinding part and fine grinding part integral structure, guarantee its roughness and roundness and transparency after processing hole, improve the processing glass material precision processing efficiency, and effectively save polishing process, once processing forming, whole structure is simple, convenient implementation and low in cost.

[0013] The utility model discloses the structure of oil tank, oil discharge groove and oil outlet realizes the flow of cooling liquid, improves the cooling effect of tool head, realizes the discharge of cutting fluid and grinding dust. BRIEF DESCRIPTION OF DRAWINGS

[0014] The drawings described in the present application are only for the purpose of illustrating selected embodiments, and should not be considered as limiting the scope of the present application.

[0015] Figure 1 The overall structure of the tool for deep hole machining in embodiment 1 is schematically shown;

[0016] Figure 2 The A part enlarged structure of Figure 1 is schematically shown;

[0017] Figure 3 The partial explosion structure of Figure 1 is schematically shown;

[0018] Figure 4 The structure of Figure 3 in another perspective is schematically shown. DETAILED DESCRIPTION

[0019] Hereinafter, the embodiments of the present application will be described in detail with reference to the accompanying drawings. In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application.

[0020] Therefore, the detailed description of the embodiments of the present application provided below in conjunction with the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0021] Example 1

[0022] As Figures 1-4 As shown, the deep hole machining tool in this embodiment is mainly used for grinding and drilling quartz glass workpieces. It includes a rod 10 and a tool head 20 that are coaxially connected and communicate with each other. Both are tubular hollow structures. The tool head 20 includes a coaxially arranged rough grinding part 21 and a fine grinding part 22. The outer diameter of the rough grinding part 21 is smaller than the outer diameter of the fine grinding part 22. An oil supply groove 201 extending axially is provided on the inner wall of the tool head 20, and an oil discharge groove 202 extending axially is provided on the outer wall of the tool head 20. The fine grinding part 22 has multiple oil outlets 203 at the end opposite to the rough grinding part 21. The oil outlets 203 radially penetrate the fine grinding part 22.

[0023] There is a gap between the oil drain trough 202, the oil outlet 203 and the oil supply trough 201, that is, the three are staggered, and there are two of each of the oil drain trough 202, the oil outlet 203 and the oil supply trough 201.

[0024] The rod 10 includes a main rod body 11 and a connecting rod body 12, with the connecting rod body 12 disposed between the tool head 20 and the main rod body 11.

[0025] The fine grinding section 22 is recessed inward at one end away from the coarse grinding section 21 and has a first mating groove 211. The connecting rod body 12 is protruding outward at one end and has a first mating ring 121. The first mating ring 121 is inserted into the first mating groove 211.

[0026] Additionally, a second docking ring 122 is provided at the other end of the connecting rod 12, and the second docking ring 122 is inserted into the main rod 11.

[0027] Furthermore, at least one support sleeve 30 and at least one positioning sleeve 40 are fitted on the main rod body 11, and the support sleeve 30 and the positioning sleeve 40 are used to connect and support the deep hole drilling equipment.

[0028] In use, the main rod 11 is installed on the main spindle of the equipment. The main spindle rotates and feeds. The support sleeve 30 and the positioning sleeve 40 provide stable support for the tool head 20 during rotation. The cutting fluid is delivered to the oil supply groove 201 in the tool head 20 through the rod 10, and delivered to the contact surface between the tool head 20 and the workpiece through the oil outlet 203. It then flows out along the oil drain groove 202. Under pressure, the cutting fluid and grinding glass powder are discharged from the gap in the hole to the outside of the workpiece.

[0029] The utility model discloses a tool head 20 front end is the rough grinding part 21, accelerates the grinding speed, improves processing efficiency, tool head 20 rear end is the fine grinding part 22, improves the smoothness of grinding hole inner wall, makes the equipment and the wear of grinding head reach the minimum, greatly improves processing efficiency, and tool service life, reduces processing cost, improves the processing efficiency 80% simultaneously, and the machining accuracy improves 100%, and the smoothness can reach within Ra0.1, improves the machining glass material precision and processing efficiency, effectively saves polishing technology, realizes one -time processing forming.

[0030] All statements herein recited in the manner can be in any suitable order. Any and all examples used, or the exemplary language provided herein (such as "for example"), merely serve to better illustrate the present utility, and are not to be construed as limiting the scope of the present utility, unless the claims. The language in the detailed description should not be understood as pointing out any essential factor of practicing the present utility, which is not claimed.

[0031] The utility model describes the preferred implementation, including the best way of carrying out the utility model that the inventor knows. Of course, the skilled person in the art can obviously see the change of these preferred implementation. The inventor expects that the skilled person can use the change as appropriate, and the inventor points out that the utility model can be implemented according to other ways different from the specific description herein. Therefore, the utility model includes all improvements included in the utility model main idea and scope defined by the claims. Moreover, unless otherwise stated or obviously contradictory in content, the utility model includes any of the above factors and all possible changes thereof.

Claims

1. A tool for deep hole machining comprising a shank (10) and a tool head (20) coaxially connected and in communication, characterized in that, The tool head (20) comprises a coarse grinding part (21) and a fine grinding part (22) coaxially arranged, the outer diameter of the coarse grinding part (21) is smaller than that of the fine grinding part (22), an oil supply groove (201) extending along the axial direction is arranged on the inner wall of the tool head (20), an oil discharge groove (202) extending along the axial direction is arranged on the outer wall of the tool head (20), a plurality of oil outlets (203) are arranged on the end of the fine grinding part (22) away from the coarse grinding part (21), and the oil outlets (203) radially penetrate the fine grinding part (22).

2. A tool for machining deep holes according to claim 1, characterized in that The oil discharge groove (202), the oil outlet (203) and the oil supply groove (201) have a spacing therebetween.

3. The tool for deep hole machining according to claim 1, wherein The end of the fine grinding part (22) away from the coarse grinding part (21) is inwardly recessed and provided with a first butt joint groove (211).

4. A tool for machining deep holes according to claim 3, characterized in that The rod part (10) comprises a main rod body (11) and a connecting rod body (12), and the connecting rod body (12) is arranged between the tool head (20) and the main rod body (11).

5. A tool for machining deep holes according to claim 4, characterized in that The end of the connecting rod body (12) outwardly protrudes and is provided with a first butt joint ring (121), and the first butt joint ring (121) is inserted and matched with the first butt joint groove (211).

6. A tool for machining deep holes according to claim 5, characterized in that The other end of the connecting rod body (12) protrudes and is provided with a second butt joint ring (122), and the second butt joint ring (122) is inserted and matched with the main rod body (11).

7. The tool according to claim 4, wherein The main rod body (11) is sleeved with at least one supporting sleeve (30) and at least one positioning sleeve (40).

Images