Inserting rod type rolling boring cutter

Abstract

An inserted rod type rolling boring cutter comprises a cutter body, a cutter body sliding block is movably arranged in a radial hole in the cutter body, one end of the cutter body sliding block is fixedly connected with a rolling cutter rod, the other end of the cutter body sliding block is connected with a fine adjustment screw rod, and the fine adjustment screw rod rotates to drive the cutter body sliding block and the rolling cutter rod to move upwards or downwards in the radial hole. The rolling cutter bar can move up and down in the cutter pressing bar installation groove under the action of the cutter body sliding block and the fine adjustment screw rod, so that the machining diameter can be quickly adjusted to adapt to workpieces to be machined of different sizes, on one hand, the machining precision is improved, and on the other hand, the machining efficiency is improved. And the rolling wheel at the front end of the rolling cutter bar can be in contact with the inner wall of the hole and generate a rolling effect, so that multiple functions of the rolling cutter bar are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of machining, in particular to an insert rod type rolling boring tool. Background Art

[0002] A boring tool is a kind of boring cutting tool, generally with a round shank, and there are also square tool shanks for larger workpieces. The most common applications are internal hole machining, reaming, profiling, etc. It is a tool with one or two cutting parts, specifically used for rough machining, semi-finishing or finishing of existing holes. The boring tool can be used on a boring machine, a lathe or a milling machine.

[0003] The existing boring tool realizes machining of different workpieces at different positions by replacing the tool shank, and it cannot achieve the following functions on the same tool shank:

[0004] Firstly, the machining diameter cannot be adjusted with the same tool shank, thus not being suitable for machining of different hole diameters.

[0005] Secondly, the boring tool can only simply realize internal hole machining and reaming, and cannot realize other machining such as rolling.

[0006] In order to solve the above problems, it is urgent to design an insert rod type rolling boring tool. Firstly, its tool shank can adjust the machining diameter to adapt to more workpieces to be machined. Secondly, other components are installed on the tool shank to realize machining such as rolling. Content of the Utility Model

[0007] The utility model aims to overcome the defects in the above-mentioned prior art and provides an insert rod type rolling boring tool. Its tool shank can adjust the machining diameter to adapt to more workpieces to be machined. Secondly, other components are installed on the tool shank to realize machining such as rolling.

[0008] To achieve the above purpose, the technical solution adopted by the utility model is: an insert rod type rolling boring tool, including a tool body. A tool body slider is movably arranged in a radial hole inside the tool body. One end of the tool body slider is fixedly connected to a rolling tool shank, and the other end of the tool body slider is connected to a fine adjustment screw. The rotation of the fine adjustment screw drives the tool body slider and the rolling tool shank to move upward or downward in the radial hole. A rolling wheel is fixed at the front end of the rolling tool shank.

[0009] As a preferred scheme of the utility model, the side of the rolling wheel facing the workpiece to be machined protrudes from the rolling tool shank.

[0010] As a preferred scheme of the utility model, it includes a size fine adjustment mechanism. The size fine adjustment mechanism includes a fine adjustment screw and a limiting part, and the upper end of the fine adjustment screw is limited by the limiting part.

[0011] As a preferred scheme of the utility model, the lower end of the fine adjustment screw is screwed into the tool body slider and connected to the tool body slider.

[0012] As a preferred embodiment of the present utility model, the tool body slider includes a tool body threaded hole in the middle and connecting threaded holes on both sides of the tool body threaded hole, and the tool body threaded hole axially penetrates the tool body slider.

[0013] As a preferred embodiment of the present utility model, the rolling cutter bar includes through holes corresponding to the connecting threaded holes, and bolts pass through the through holes and the connecting threaded holes to realize the connection between the tool body slider and the rolling cutter bar.

[0014] As a preferred embodiment of the present utility model, the tool body includes a slider locking hole and at least two rolling cutter bar locking holes.

[0015] As a preferred embodiment of the present utility model, it includes a slider locking bolt and a rolling cutter bar bolt. The slider locking bolt passes through the slider locking hole to lock the tool body slider on the tool body, and the rolling cutter bar bolt passes through the rolling cutter bar locking hole to lock the rolling cutter bar on the tool body.

[0016] As a preferred embodiment of the present utility model, the tool body includes a rolling cutter bar installation groove, and the rolling cutter bar is arranged in the tool body along the rolling cutter bar installation groove.

[0017] As a preferred embodiment of the present utility model, a tool handle is formed on the side of the tool body away from the rolling cutter bar, and the tool handle is used to fix the tool body on the processing equipment.

[0018] The beneficial effects of the present utility model are as follows:

[0019] 1. The rolling cutter bar of the present utility model can move up and down in the cutter bar installation groove under the action of the tool body slider and the fine adjustment screw rod, and thus can quickly adjust the processing diameter to adapt to workpieces to be processed with different sizes. On the other hand, the rolling wheel at the front end of the rolling cutter bar can contact the inner wall of the hole and produce a rolling effect, realizing multiple functions of the rolling cutter bar.

[0020] 2. The present utility model makes the workpiece undergo local plastic deformation by contacting the inner wall of the hole with the rolling wheel and producing a rolling effect, thereby improving the surface roughness of the hole. By adjusting the position of the rolling wheel relative to the axis of the workpiece hole with the fine adjustment screw rod, it can meet the processing requirements of different hole diameters.

[0021] 3. The rolling wheel of the present utility model is made of a material with high hardness and good wear resistance, ensuring that a high surface roughness can be processed. Moreover, when the rolling cutter bar is processed, two rolling cutter bar bolts are used for independent locking, ensuring the dimensional stability of the tool under the rolling force. Description of the Drawings

[0022] Figure 1 is a structural schematic diagram of the present utility model;

[0023] Figure 2 is the front view of the present utility model;

[0024] Figure 3 is the side view of the present utility model;

[0025] Figure 4 is the internal sectional view of the present utility model;

[0026] In the figure, reference numerals: 1, tool body; 2, tool body slider; 3, rolling cutter bar; 4, fine adjustment screw; 5, rolling wheel; 6, rolling cutter bar bolt; 7, limiting part; 8, slider locking bolt; 11, radial hole; 12, slider locking hole; 13, rolling cutter bar locking hole; 14, rolling cutter bar installation groove; 15, tool handle; 21, tool body threaded hole; 22, connecting threaded hole; 31, through hole; 100, size fine adjustment mechanism. Specific embodiments

[0027] The following will make a detailed description of the embodiments of the present utility model in conjunction with the accompanying drawings.

[0028] As Figures 1 - 4 shown, an inserting rod type rolling boring cutter includes a tool body 1. A tool body slider 2 is movably arranged in a radial hole 11 inside the tool body 1. One end of the tool body slider 2 is fixedly connected to a rolling cutter bar 3. The other end of the tool body slider 2 is connected to a fine adjustment screw 4. The rotation of the fine adjustment screw 4 drives the tool body slider 2 and the rolling cutter bar 3 to move upward or downward in the radial hole 11. A rolling wheel 5 is fixed at the front end of the rolling cutter bar 3.

[0029] The tool body 1 includes a rolling cutter bar installation groove 14. The rolling cutter bar 3 is arranged in the tool body 1 along the rolling cutter bar installation groove 14. The rolling cutter bar 3 not connected to the tool body slider 2 can move up and down and back and forth in the rolling cutter bar installation groove 14, and the rolling cutter bar 3 connected to the tool body slider 2 can move up and down in the rolling cutter bar installation groove 14.

[0030] Specifically, the tool body slider 2 is placed in the radial hole 11 of the tool body. The rolling cutter bar 3 is fixed on the tool body slider 2 by bolts. The front end of the rolling cutter bar 3 is embedded with the rolling wheel 5. The inside of the tool body slider 2 is connected to the fine adjustment screw 4. The fine adjustment screw 4 enables the tool body slider 2 to drive the rolling cutter bar 3 to perform up and down size adjustment through the size fine adjustment mechanism 100. When the rolling cutter bar 3 moves upward, the machining diameter becomes smaller, and when the rolling cutter bar 3 moves downward, the machining diameter becomes larger, thereby achieving the purpose of adjusting the machining diameter. After adjusting to the required size, the tool body slider 2 and the rolling cutter bar 3 need to be locked on the tool body 1 by bolts before machining can be carried out.

[0031] Since the position of the rolling cutter bar 3 in the tool body 1 is adjustable, the rigidity of the rolling cutter bar 3 is smaller than that of a conventional cutter bar. Correspondingly, this rolling cutter bar 3 is only suitable for machining shallow holes with a relatively small diameter.

[0032] The rolling cutter bar 3 of the present utility model can move up and down in the cutter bar installation groove 14 under the action of the cutter body slider 2 and the fine adjustment screw rod 4, and thus can quickly adjust the machining diameter to adapt to workpieces to be machined with different sizes. On the other hand, the rolling wheel 5 at the front end of the rolling cutter bar 3 can contact the inner wall of the hole and produce a rolling effect, realizing multiple functions of the rolling cutter bar 3.

[0033] In order to prevent the rolling cutter bar 3 from affecting the machining of the rolling wheel 5, the side of the rolling wheel 5 facing the workpiece to be machined protrudes from the rolling cutter bar 3, and the rolling wheel 5 is made of a material with high hardness and good wear resistance.

[0034] The size fine adjustment mechanism 100 includes a fine adjustment screw rod 4 and a limiting part 7. The upper end of the fine adjustment screw rod 4 is limited by the limiting part 7, and the lower end of the fine adjustment screw rod 4 is screwed into the cutter body slider 2 and connected to the cutter body slider 2.

[0035] The cutter body slider 2 includes a cutter body threaded hole 21 in the middle and connecting threaded holes 22 on both sides of the cutter body threaded hole 21. The cutter body threaded hole 21 axially penetrates the cutter body slider 2, and the fine adjustment screw rod 4 is screwed into the cutter body threaded hole 21.

[0036] The rolling cutter bar 3 includes through holes 31 corresponding to the connecting threaded holes 22, and bolts pass through the through holes 31 and the connecting threaded holes 22 to realize the connection between the cutter body slider 2 and the rolling cutter bar 3.

[0037] Specifically, the lower end of the fine adjustment screw rod 4 is screwed into the cutter body slider 2 to realize the connection between the cutter body slider 2 and the fine adjustment screw rod 4, and bolts pass through the through holes 31 and the connecting threaded holes 22 to realize the connection between the cutter body slider 2 and the rolling cutter bar 3. Correspondingly, the fine adjustment screw rod 4 is limited by the limiting part 7 and rotates under the action of the size fine adjustment mechanism 100, and thus the indirectly connected rolling cutter bar 3 realizes its up and down movement in the cutter bar installation groove 14.

[0038] The cutter body 1 includes a slider locking hole 12 and a rolling cutter bar locking hole 13. The number of the rolling cutter bar locking holes 13 is at least two. The slider locking bolt 8 passes through the slider locking hole 12 to realize the locking of the cutter body slider 2 on the cutter body 1, and the rolling cutter bar bolt 6 passes through the rolling cutter bar locking hole 13 to realize the locking of the rolling cutter bar 3 on the cutter body 1.

[0039] A tool handle 15 is formed on one side of the cutter body 1 away from the rolling cutter bar 3, and the tool handle 15 is used to fix the cutter body 1 on the processing equipment.

[0040] Specifically, after the rolling tool bar 3 is adjusted to the specified position, the slider locking bolt 8 and the rolling tool bar bolt 6 are screwed into the slider locking hole 12 and the rolling tool bar locking hole 13 to lock the tool body slider 2 and the rolling tool bar 3 on the tool body 1, ensuring that the tool body slider 2 and the rolling tool bar 3 are stably fixed within the tool body 1. Among them, the rolling tool bar 3 is used for machining the workpiece to be machined. To ensure the stability of the machining of the rolling tool bar 3, multiple rolling tool bar bolts 6 are required to lock the rolling tool bar 3.

[0041] Specifically implement an insert rod type rolling boring tool:

[0042] Before use, it is necessary to first finish fine boring and leave a rolling allowance of 0.02 - 0.03 mm.

[0043] After installing each component, when in use, first loosen the slider locking bolt 8 and the rolling tool bar bolt 6, use a wrench to rotate the fine adjustment screw rod 4 to adjust the size to the required size first, and then tighten the slider locking bolt 8 and the rolling tool bar bolt 6 to start the first rolling. After the rolling is completed, check the hole diameter size. If there is still allowance, loosen the slider locking bolt 8 and the rolling tool bar bolt 6 again, fine-tune to the corresponding size according to the scale on the fine adjustment screw rod 4, tighten the slider locking bolt 8 and the rolling tool bar bolt 6 again, and then the machining can be carried out.

[0044] The rolling wheel of the present utility model adopts a material with high hardness and good wear resistance to ensure that a relatively high surface roughness can be machined. Moreover, when the rolling tool bar is being machined, two rolling tool bar bolts are used to lock it separately to ensure the dimensional stability of the tool under the rolling force.

[0045] The present utility model makes the workpiece undergo local plastic deformation by bringing the rolling wheel into contact with the inner wall of the hole and generating a rolling effect, thereby improving the surface roughness of the hole; by adjusting the position of the rolling wheel relative to the axis of the workpiece hole through the fine adjustment screw rod, it can adapt to the machining requirements of different hole diameters.

[0046] The corresponding tool holder can be arbitrarily replaced for installation and machining according to the spindle interface of the customer's machine tool, without the need to use it only on specially customized equipment, and the usage threshold is low.

[0047] Compared with other tools, it can improve the accuracy of the product, improve the surface quality of the product, and increase the machining efficiency and qualification rate of the product.

[0048] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model; therefore, the present utility model will not be limited to these embodiments shown herein, but rather will conform to the broadest scope consistent with the principles and novel features disclosed herein.

[0049] Although the following terms are used more frequently in this text: cutting tool body 1, cutting tool body slider 2, rolling tool bar 3, fine adjustment screw 4, rolling wheel 5, rolling tool bar bolt 6, limiting part 7, slider locking bolt 8, radial hole 11, slider locking hole 12, rolling tool bar locking hole 13, rolling tool bar mounting groove 14, tool handle 15, cutting tool body threaded hole 21, connecting threaded hole 22, through hole 31, dimension fine adjustment mechanism 100, etc., the possibility of using other terms is not excluded; the use of these terms is only for more convenient description and explanation of the essence of the present utility model; interpreting them as any additional limitation is contrary to the spirit of the present utility model.

Claims

1. An insert rod type rolling boring tool, characterized in that: It includes a tool body (1). A tool body slider (2) is movably arranged in a radial hole (11) inside the tool body (1). One end of the tool body slider (2) is fixedly connected to a rolling tool bar (3), and the other end of the tool body slider (2) is connected to a fine adjustment screw rod (4). The rotation of the fine adjustment screw rod (4) drives the tool body slider (2) and the rolling tool bar (3) to move upward or downward in the radial hole (11). A rolling wheel (5) is fixed at the front end of the rolling tool bar (3).

2. The insert rod type rolling boring cutter according to claim 1, wherein: The side of the rolling wheel (5) facing the workpiece to be processed protrudes from the rolling tool bar (3).

3. The inserted-bar type rolling boring cutter according to claim 1, characterized in that: It includes a dimension fine adjustment mechanism (100). The dimension fine adjustment mechanism (100) includes a fine adjustment screw rod (4) and a limiting part (7). The upper end of the fine adjustment screw rod (4) is limited by the limiting part (7).

4. The insert rod type rolling boring cutter according to claim 3, wherein: The lower end of the fine adjustment screw rod (4) is screwed into the tool body slider (2) and connected to the tool body slider (2).

5. The insert rod type rolling boring cutter according to claim 1, characterized in that: The tool body slider (2) includes a tool body threaded hole (21) in the middle and connecting threaded holes (22) located on both sides of the tool body threaded hole (21). The tool body threaded hole (21) axially penetrates the tool body slider (2).

6. The insert rod type rolling boring cutter according to claim 1, characterized in that: The rolling tool bar (3) includes through holes (31) corresponding to the connecting threaded holes (22). Bolts pass through the through holes (31) and the connecting threaded holes (22) to realize the connection between the tool body slider (2) and the rolling tool bar (3).

7. The insert rod type rolling boring cutter according to claim 1, characterized in that: The tool body (1) includes a slider locking hole (12) and a rolling tool bar locking hole (13). The number of the rolling tool bar locking holes (13) is at least 2.

8. The insert rod type rolling boring cutter according to claim 7, characterized in that: It includes a slider locking bolt (8) and a rolling tool bar bolt (6). The slider locking bolt (8) passes through the slider locking hole (12) to lock the tool body slider (2) on the tool body (1), and the rolling tool bar bolt (6) passes through the rolling tool bar locking hole (13) to lock the rolling tool bar (3) on the tool body (1).

9. The insert rod type rolling boring cutter according to claim 7, characterized in that: The tool body (1) includes a rolling tool bar installation groove (14). The rolling tool bar (3) is arranged in the tool body (1) along the rolling tool bar installation groove (14).

10. The insert rod type rolling boring cutter according to claim 9, characterized in that: A tool handle (15) is formed on the side of the tool body (1) away from the rolling tool bar (3). The tool handle (15) is used to fix the tool body (1) on the processing equipment.

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