Diamond turning tool for turning long inner hole

Abstract

The utility model discloses a diamond turning tool for turning a long inner hole, which belongs to the field of metal processing and comprises a tool rest sleeve, the top of the tool rest sleeve extends upwards to form a plurality of skirts, a gap is reserved between every two adjacent skirts, threads are arranged on the outer walls of the skirts, and an adjusting groove is arranged at the top of the tool rest sleeve. The nut locking rings are arranged on the outer walls of the skirt edges in a sleeving manner; every two adjacent connecting pieces can be connected in a spliced mode, and one end of one connecting piece is inserted into the corresponding adjusting groove. According to the diamond turning tool for turning the long inner hole, through the design that the connecting pieces can be spliced at will and the relative positions of the connecting pieces and the tool rest sleeve can be adjusted, the length of the turning tool can be adjusted before turning, the applicability of the turning tool is improved, various turning tools with different lengths do not need to be prefabricated, cost is saved, and the machining efficiency is improved. Meanwhile, due to the replaceable design of the tool bit, when the tool bit is abraded or has different turning requirements, only the whole tool bit can be replaced, so that the use cost is increased, and the machining efficiency is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of metal processing, and particularly relates to a diamond turning tool for turning long internal holes. Background Art

[0002] Cutting tools are indispensable important tools in machining. Whether it is an ordinary machine tool, or an advanced numerical control machine tool (NC), machining center (MC) and flexible manufacturing system (FMC), they must rely on cutting tools to complete the machining. In particular, the turning of the inner wall of a long internal hole has always been a difficult point in the machining industry. Because the internal hole is too long and the length of the tool shank is limited, it is impossible to complete one-time forming machining.

[0003] During the machining process of turning a long internal hole, corresponding extended turning tools are required for turning different internal holes. This requires customizing various specifications of extended turning tools according to the actual machining situation, including turning tools with different lengths and different tool heads. The turning tools are expensive, increasing the manufacturing cost. Therefore, a Summary of the Utility Model

[0004] In view of one or more of the above defects or improvement requirements in the prior art, the present utility model provides a diamond turning tool for turning long internal holes.

[0005] To achieve the above object, the present utility model provides a diamond turning tool for turning long internal holes, including a tool holder sleeve. A plurality of skirt edges extend upward from the top of the tool holder sleeve, and there is a gap between adjacent two skirt edges. Threads are provided on the outer wall of the skirt edges, and an adjustment groove is provided at the top of the tool holder sleeve;

[0006] A nut lock ring is sleeved on the outer wall of each skirt edge;

[0007] A plurality of connecting members, adjacent two connecting members can be joined together, and one end of one connecting member is inserted into the adjustment groove;

[0008] After the nut lock ring is screwed, each skirt edge can be contracted and the connecting member can be extruded, so as to fix the tool holder sleeve and the connecting member;

[0009] A tool head is embedded on the outer wall of the lower end of the tool holder sleeve, and the tool head is detachably connected to the tool holder sleeve.

[0010] Furthermore, one side of the tool head away from the tool holder sleeve has a fixing screw. One end of the fixing screw penetrates through the tool head and is threadedly connected to the tool holder sleeve. The tool head is detachably connected to the tool holder sleeve through the fixing screw.

[0011] Further, the connecting member includes a connecting column, which is a hollow columnar structure. Installation grooves are respectively formed at the centers of the upper parts around the connecting column, and docking holes are respectively formed at the centers of the four edges of the top of the connecting column. The docking holes communicate with the corresponding installation grooves. A nut ring is embedded inside the installation groove, and a docking screw is inserted inside the docking hole. The lower end of the docking screw penetrates through the docking hole, and the docking screw can extend into the docking hole on the lower connecting column and be threadedly connected to the corresponding nut ring inside the lower connecting column, so as to realize the splicing and fixation between two adjacent connecting columns.

[0012] Further, a trapezoidal groove is formed by the inward depression at the top of the connecting column, and a trapezoidal protrusion is formed by the outward extension at the bottom of the connecting column. The trapezoidal groove is adapted to the trapezoidal protrusion.

[0013] Generally speaking, compared with the prior art, the beneficial effects of the above technical solutions conceived by the present utility model include:

[0014] For the diamond turning tool for turning long internal holes of the present utility model, through the design that the connecting members can be arbitrarily spliced and the relative positions between the connecting members and the tool holder sleeve can be adjusted, the length of the turning tool can be adjusted before turning, increasing the applicability of the turning tool. There is no need to prefabricate turning tools of various different lengths, saving costs. At the same time, the design that the tool tip can be replaced can also prevent the situation that when the tool tip is worn or there are different turning requirements, only the whole needs to be replaced, resulting in an increase in the use cost and a decrease in the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a schematic cross-sectional structural diagram of the tool holder sleeve of the present utility model;

[0017] Figure 3 is a schematic cross-sectional structural diagram of two adjacent connecting members of the present utility model;

[0018] Figure 4 is an exploded view of two adjacent connecting members of the present utility model;

[0019] Figure 5 is a bottom exploded view of two adjacent connecting members of the present utility model.

[0020] In all the drawings, the same reference numerals represent the same technical features, specifically: 1. Tool holder sleeve; 2. Skirt; 3. Adjustment groove; 4. Nut lock ring; 5. Connecting member; 51. Connecting column; 52. Installation groove; 53. Docking hole; 54. Nut ring; 55. Docking screw; 6. Tool tip; 7. Fixing screw; 8. Trapezoidal groove; 9. Trapezoidal protrusion. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-5 , in the diamond turning tool for long internal hole turning in this embodiment, through the design that the connecting member 5 can be arbitrarily assembled and the relative position between the connecting member 5 and the tool holder sleeve 1 can be adjusted, the length of the turning tool can be adjusted before turning, increasing the applicability of the turning tool. There is no need to prefabricate turning tools of various different lengths, saving costs. At the same time, the design that the tool tip 6 can be replaced can also prevent the situation where when the tool tip 6 is worn or there are different turning requirements, only the whole needs to be replaced, resulting in increased use costs and reduced processing efficiency.

[0023] Specifically, it includes a diamond turning tool for long internal hole turning, which includes a tool holder sleeve 1. A plurality of skirt edges 2 extend upward from the top of the tool holder sleeve 1. There is a gap between adjacent two skirt edges 2. Threads are provided on the outer wall of the skirt edge 2. An adjustment groove 3 is opened at the top of the tool holder sleeve 1;

[0024] Nut lock rings 4 are sleeved on the outer walls of each skirt edge 2;

[0025] A plurality of connecting members 5, adjacent two connecting members 5 can be assembled and connected, and one end of one connecting member 5 is inserted into the adjustment groove 3;

[0026] After the nut lock ring 4 is screwed, each skirt edge 2 can be contracted and the connecting member 5 can be extruded, so as to fix the tool holder sleeve 1 and the connecting member 5;

[0027] A tool tip 6 is embedded on the outer wall of the lower end of the tool holder sleeve 1, and the tool tip 6 is detachably connected to the tool holder sleeve 1.

[0028] In this embodiment, the connecting member 5 can be used to connect with an external tool holder. During use, the connecting member 5 drives the tool bit 6 to extend into a rotating external tubular part. When the tool bit 6 contacts the inner wall of the pipe part, the inner wall can be cut. Before use, the tool holder sleeve 1 can be pulled to slide on the outer wall of the connecting member 5 to change the position between the two, so that the turning tool can adjust the extension length and use position of the tool bit 6 according to actual use requirements, thereby increasing the applicability of the turning tool. There is no need to prefabricate turning tools of various different lengths, saving costs. After adjustment, the nut lock ring 4 can be screwed and moved towards the connecting member 5. Under the extrusion of the nut lock ring 4, the four skirt edges 2 are deformed and contracted. During this process, the skirt edges 2 gradually press against the outer wall of the connecting member 5. Through the friction force between the two and the pressure continuously exerted by the skirt edges 2 on the connecting member 5, the current positions of the tool holder sleeve 1 and the connecting member 5 can be fixed. At the same time, any amount of connecting members 5 can be assembled according to different use requirements, thereby greatly adjusting the length of the turning tool.

[0029] Specifically, referring to Figure 1 , one side of the tool bit 6 away from the tool holder sleeve 1 has a fixing screw 7. One end of the fixing screw 7 penetrates through the tool bit 6 and is threadedly connected with the tool holder sleeve 1. The tool bit 6 is detachably connected to the tool holder sleeve 1 through the fixing screw 7.

[0030] In this embodiment, when the tool bit 6 is worn or there are different turning requirements, the fixing screw 7 can be screwed in the reverse direction to make it leave the inside of the tool holder sleeve 1 and the tool bit 6, so as to cancel the fixation of the tool bit 6, so that the tool bit 6 can be replaced separately, avoiding that when the tool bit 6 is worn or there are different turning requirements, only the whole can be replaced, resulting in an increase in use costs and a decrease in processing efficiency.

[0031] Specifically, referring to Figures 3-5 , the connecting member 5 includes a connecting column 51. The connecting column 51 is a hollow columnar structure. Installation grooves 52 are respectively opened at the centers of the upper parts around the connecting column 51. Docking holes 53 are respectively opened at the centers of the four top edges of the connecting column 51. The docking holes 53 are communicated with the corresponding installation grooves 52. A nut ring 54 is embedded in the installation groove 52. A docking screw 55 is inserted into the docking hole 53. The lower end of the docking screw 55 penetrates through the docking hole 53. The docking screw 55 can extend into the docking hole 53 on the lower connecting column 51 below and is threadedly connected with the corresponding nut ring 54 in the lower connecting column 51 to realize the fitting and fixation between two adjacent connecting columns 51.

[0032] In this embodiment, when it is necessary to fit two adjacent connecting members 5 together, the two connecting columns 51 can be first stacked together and the four docking screws 55 can be inserted into the four docking holes 53 on the upper connecting column 51. Subsequently, the nut ring 54 can be placed in the mounting groove 52 on the lower connecting column 51. Then, an external tool can be used to rotate the docking screw 55. During this process, the docking screw 55 penetrates through the nut ring 54 and makes the two connecting columns 51 close to each other through the pulling force of the thread, thereby completing the fitting between the two connecting columns 51. When disassembling, just operate in the reverse direction.

[0033] Specifically, referring to Figures 4-5 , a trapezoidal groove 8 is formed by inward depression at the top of the connecting column 51, and a trapezoidal protrusion 9 is formed by outward extension at the bottom of the connecting column 51. The trapezoidal groove 8 is adapted to the trapezoidal protrusion 9.

[0034] In this embodiment, during the docking process of two adjacent connecting columns 51, through the protruding slope of the trapezoidal protrusion 9 and the concave slope of the trapezoidal groove 8, the two connecting columns 51 can be limited and guided during this process, so that the docking of the two connecting columns 51 can be more smooth, and the docking holes 53 on the two connecting columns 51 can be aligned, improving the simplicity and efficiency of the operation.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A diamond turning tool for long inner hole turning, characterized in that: The tool holder sleeve (1) comprises a plurality of skirt edges (2) extending upward from the top of the tool holder sleeve (1), a gap being provided between two adjacent skirt edges (2), a thread being provided on the outer wall of the skirt edge (2), and an adjustment groove (3) being provided on the top of the tool holder sleeve (1); A nut locking ring (4) is sleeved on the outer wall of each skirt (2); A plurality of connecting pieces (5), wherein two adjacent connecting pieces (5) can be spliced ​​and connected, and one end of one of the connecting pieces (5) is inserted into the adjustment groove (3); When the nut lock ring (4) is screwed, each skirt (2) can be contracted and squeezed against the connecting piece (5), thereby fixing the tool holder sleeve (1) and the connecting piece (5); The cutter head (6) is embedded in the outer wall of the lower end of the cutter holder sleeve (1), and the cutter head (6) and the cutter holder sleeve (1) are detachably connected.

2. The diamond turning tool for long inner hole turning according to claim 1, characterized in that: A fixing screw (7) is provided on the side of the cutter head (6) away from the cutter holder sleeve (1), one end of the fixing screw (7) passes through the cutter head (6) and is threadedly connected to the cutter holder sleeve (1), and the cutter head (6) is detachably connected to the cutter holder sleeve (1) via the fixing screw (7).

3. The diamond turning tool for long inner hole turning according to claim 1, characterized in that: The connecting member (5) comprises a connecting column (51), which is a hollow columnar structure. The connecting column (51) is provided with mounting grooves (52) at the upper center of each of the four sides. The connecting column (51) is provided with docking holes (53) at the four center of the top edge. The docking holes (53) are connected with the corresponding mounting grooves (52). A nut ring (54) is embedded in the mounting groove (52). A docking screw (55) is inserted in the docking hole (53). The lower end of the docking screw (55) passes through the docking hole (53). The docking screw (55) can extend into the docking hole (53) on the lower connecting column (51) and be threadedly connected with the corresponding nut ring (54) in the lower connecting column (51) to realize the splicing and fixing between two adjacent connecting columns (51).

4. The diamond turning tool for long inner hole turning according to claim 3, characterized in that: The top of the connecting column (51) is recessed inwards to form a trapezoidal groove (8), and the bottom of the connecting column (51) extends outwards to form a trapezoidal protrusion (9), and the trapezoidal groove (8) is matched with the trapezoidal protrusion (9).

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