Variable-diameter boring row cutter body

Abstract

The utility model discloses a variable diameter boring row cutter body, which relates to the technical field of boring row cutter bodies and comprises a first cutter holder, two second cutter holders and a mounting column, the first cutter holder is fixedly mounted at the upper end of the first cutter holder, the two second cutter holders are distributed on two sides of the first cutter holder, and the mounting column is mounted on the first cutter holder. Cutter mounting holes are formed in the surfaces of the first tool apron and the two second tool aprons, the two second tool aprons can be driven to move by the two connecting blocks moving close to each other or moving away from each other, and therefore the distance between the second tool aprons and the first tool apron is adjusted; therefore, the distance between the cutter mounting holes can be adjusted, the mounting position between the cutter bodies can be adjusted, the distance between the cutter bodies on the boring machine can be adjusted according to actual needs, cutting force can be evenly distributed by adjusting the distance between the cutter bodies, the situation that too large or too small cutting force is concentrated in a certain area is avoided, and the machining efficiency is improved. And the service life of the cutter is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of boring tool bodies, in particular to a boring tool body with a variable diameter. Background Art

[0002] A boring tool body is a tool used to completely remove material from a hole or form it into a specific shape, usually for machining the inner surface of a hole.

[0003] In actual use, it is not convenient to adjust the spacing between the existing boring tool bodies, and the cutting force is easily concentrated in a certain area, which increases the wear of the tool and reduces the service life. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a variable diameter boring tool body, which solves the technical problems that the existing boring tool bodies are not convenient to adjust the spacing between the tool bodies during actual use, the cutting force is easily concentrated in a certain area, which increases the wear of the tool and reduces the service life.

[0006] (II) Technical solution

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A variable diameter boring tool body comprises a tool holder one, a tool holder two and a mounting column, wherein the tool holder one is fixedly mounted on the upper end of the tool holder one, and the number of the tool holder two is two, and the two tool holders two are distributed on both sides of the tool holder one, and tool mounting holes are provided on the surfaces of the tool holder one and the two tool holders two, and connecting blocks are fixedly mounted on the ends of the two tool holders two, and a connecting cylinder is fixedly mounted on the end of the tool holder one, and a threaded rod is rotatably mounted in the connecting cylinder, and threaded holes are provided on the surfaces of the two connecting blocks, and the threaded rod passes through the two threaded holes, and two limiting rods are fixedly mounted on the opposite ends of the two tool holders two.

[0009] Preferably, the two tool holders 2 are centrally symmetrically distributed about the midpoint of the tool holder 1, and the thread directions of the two threaded holes are opposite.

[0010] Preferably: an annular groove is opened on the inner wall of the connecting tube, the threaded rod passes through the connecting tube, a limiting ring matched with the annular groove is fixedly sleeved in the middle of the threaded rod, the limiting ring is arranged in the annular groove, and a torsion block is fixedly connected to the free end of the threaded rod.

[0011] Preferably, limiting grooves are provided on both sides of one surface of the knife seat, and each limiting rod is movably inserted into the limiting groove.

[0012] (III) Beneficial effects

[0013] 1. By moving the two connecting blocks closer to or away from each other, the two tool holders 2 are driven to move, thereby adjusting the distance between tool holder 2 and tool holder 1, so that the distance between the tool mounting holes can be adjusted, and the installation position between the tool bodies can be adjusted. The distance between the tool bodies on the boring row can be adjusted according to actual needs. By adjusting the distance between the tool bodies, the cutting force can be evenly distributed to avoid excessive or small cutting force concentrated in a certain area, reduce tool wear and extend service life.

[0014] Second, a limiting rod is fixedly installed on each tool holder, and each limiting rod is movably inserted into the limiting groove, which limits the movement of the tool holder and prevents it from rotating with the rotation of the threaded rod. A limiting ring is fixedly installed on the threaded rod, and an annular groove is provided on the inner wall of the connecting tube. The limiting ring is provided in the annular groove, which limits the threaded rod and prevents the threaded rod from being separated from the connecting tube, thereby ensuring stable adjustment of the distance between the tool bodies. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0016] Figure 1 This is a structural diagram of the entire variable diameter boring cutter body of the utility model;

[0017] Figure 2 This is a structural diagram of the limit slot of the utility model;

[0018] Figure 3 This is a structural diagram of the knife holder 2 of the utility model;

[0019] Figure 4 This is a structural diagram of a cutaway connecting tube of the utility model.

[0020] Legend: 1. Tool holder one; 11. Limiting groove; 2. Tool holder two; 21. Limiting rod; 22. Connecting block; 3. Tool mounting hole; 4. Mounting column; 5. Connecting tube; 51. Annular groove; 6. Threaded rod; 61. Limiting ring; 62. Twist block. DETAILED DESCRIPTION

[0021] The embodiment of the present application provides a variable diameter boring tool body, which effectively solves the problem that the existing boring tool body is not convenient to adjust the spacing between the tool bodies during actual use, and the cutting force is easily concentrated in a certain area, which increases the wear of the tool and reduces the service life. The variable diameter boring tool body moves closer to or away from each other through two connecting blocks, which will drive the two tool seats 2 to move, thereby adjusting the spacing between the tool seat 2 and the tool seat 1, so that the spacing between the tool mounting holes and the tool mounting holes can be adjusted, and the installation position between the tool bodies can be adjusted. The tool on the boring tool can be adjusted according to actual needs. The spacing between the tool bodies can be adjusted to evenly distribute the cutting force, avoid excessive or too small cutting force concentrated in a certain area, reduce tool wear and extend tool life. A limit rod is fixedly installed on each tool holder, and each limit rod is movably inserted into the limit groove, which limits the movement of the tool holder and avoids rotation with the rotation of the threaded rod. A limit ring is fixedly installed on the threaded rod, and an annular groove is provided on the inner wall of the connecting tube. The limit ring is provided in the annular groove, which limits the threaded rod and prevents the threaded rod from being separated from the connecting tube, thereby ensuring stable adjustment of the spacing between the tool bodies.

[0022] Embodiment: Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in the embodiment of the present application effectively solves the technical problem that in the actual use of the existing boring tool body, it is not convenient to adjust the spacing between the tool bodies, the cutting force is easily concentrated in a certain area, the wear of the tool is increased, and the service life is reduced. The overall idea is as follows:

[0023] In view of the problems existing in the prior art, the utility model provides a variable diameter boring tool body, including a tool holder 1, a tool holder 2 and a mounting column 4, the tool holder 1 is fixedly mounted on the upper end of the tool holder 1, the number of tool holders 2 is two, and the two tool holders 2 are distributed on both sides of the tool holder 1, the surfaces of the tool holder 1 and the two tool holders 2 are provided with tool mounting holes 3, the ends of the two tool holders 2 are fixedly mounted with connecting blocks 22, the ends of the tool holder 1 are fixedly mounted with connecting tubes 5, a threaded rod 6 is rotatably mounted in the connecting tube 5, the surfaces of the two connecting blocks 22 are provided with threaded holes, and the threaded rod 6 passes through the two threaded holes. The two opposite ends of the two tool seats 2 are fixedly installed with two limiting rods 21, the two tool seats 2 are symmetrically distributed about the midpoint of the tool seat 1, the thread directions of the two threaded holes are opposite, an annular groove 51 is provided on the inner wall of the connecting tube 5, the threaded rod 6 passes through the connecting tube 5, a limiting ring 61 adapted to the annular groove 51 is fixedly sleeved in the middle of the threaded rod 6, the limiting ring 61 is arranged in the annular groove 51, the free end of the threaded rod 6 is fixedly connected with a torsion block 62, and limiting grooves 11 are provided on both sides of the surface of the tool seat 1, and each limiting rod 21 is movably inserted into the limiting groove 11. When the tool mounting hole 3 needs to be adjusted, When adjusting the spacing between the tool mounting hole 3, twist the torsion block 62 to rotate the threaded rod 6, and the rotation of the threaded rod 6 drives the two connecting blocks 22 to move closer to or away from each other. The two connecting blocks 22 move closer to or away from each other, which drives the two tool holders 2 to move, thereby adjusting the spacing between the tool holder 2 2 and the tool holder 1, so that the spacing between the tool mounting hole 3 and the tool mounting hole 3 can be adjusted, and the installation position between the tool bodies can be adjusted. The spacing between the tool bodies on the boring row can be adjusted according to actual needs. By adjusting the spacing between the tool bodies, the cutting can be evenly distributed. Force, avoid excessive or insufficient cutting force concentrated in a certain area, reduce tool wear and extend tool life, a limit rod 21 is fixedly installed on each tool holder 2, each limit rod 21 is movably inserted into the limit groove 11, which limits the movement of the tool holder 2 and avoids rotation with the rotation of the threaded rod 6, a limit ring 61 is fixedly installed on the threaded rod 6, an annular groove 51 is provided on the inner wall of the connecting tube 5, and the limit ring 61 is provided in the annular groove 51, which limits the threaded rod 6 and prevents the threaded rod 6 from being separated from the connecting tube 5, thereby ensuring stable adjustment of the distance between the tool bodies.

[0024] Working principle:

[0025] In the first step, when it is necessary to adjust the distance between the tool mounting hole 3 and the tool mounting hole 3, twist the torsion block 62 to rotate the threaded rod 6, and the rotation of the threaded rod 6 drives the two connecting blocks 22 to move closer to or away from each other. The two connecting blocks 22 move closer to or away from each other, which drives the two tool holders 2 2 to move, thereby adjusting the distance between the tool holder 2 2 and the tool holder 1, so that the distance between the tool mounting hole 3 and the tool mounting hole 3 can be adjusted, and the installation position between the tool bodies can be adjusted. The distance between the tool bodies on the boring row can be adjusted according to actual needs. By adjusting the distance between the tool bodies, the cutting force can be evenly distributed to avoid excessive or too small cutting force concentrated in a certain area, reduce tool wear and extend tool service life.

[0026] In the second step, a limiting rod 21 is fixedly installed on each tool holder 2, and each limiting rod 21 is movably inserted into the limiting groove 11, which limits the movement of the tool holder 2 and prevents it from rotating with the threaded rod 6. A limiting ring 61 is fixedly installed on the threaded rod 6, and an annular groove 51 is provided on the inner wall of the connecting tube 5. The limiting ring 61 is arranged in the annular groove 51, which limits the threaded rod 6 and prevents the threaded rod 6 from being separated from the connecting tube 5, thereby ensuring the stable adjustment of the distance between the tool bodies.

[0027] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A variable diameter boring tool body, comprising a tool holder 1 (1), a tool holder 2 (2) and a mounting column (4), characterized in that: The knife seat one (1) is fixedly mounted on the upper end of the knife seat one (1), the number of the knife seats two (2) is two, the two knife seats two (2) are distributed on both sides of the knife seat one (1), and the surfaces of the knife seat one (1) and the two knife seats two (2) are provided with a tool mounting hole (3); Wherein, the ends of the two knife seats (2) are fixedly mounted with connection blocks (22), the end of the knife seat (1) is fixedly mounted with a connection tube (5), a threaded rod (6) is rotatably mounted in the connection tube (5), the surfaces of the two connection blocks (22) are provided with threaded holes, and the threaded rod (6) passes through the two threaded holes; Wherein, two limiting rods (21) are fixedly installed at the two opposite ends of the two knife seats (2).

2. A variable diameter boring tool body according to claim 1, characterized in that: The two blade seats 2 (2) are centrally symmetrically distributed about the midpoint of the blade seat 1 (1).

3. The variable diameter boring tool body according to claim 1, characterized in that: The thread directions of the two threaded holes are opposite.

4. The variable diameter boring tool body according to claim 1, characterized in that: The inner wall of the connecting tube (5) is provided with an annular groove (51); Wherein, the threaded rod (6) passes through the connecting tube (5).

5. The variable diameter boring tool body according to claim 4, characterized in that: The middle fixed sleeve of the threaded rod (6) is provided with a limiting ring (61) matched with the annular groove (51); Wherein, the limiting ring (61) is arranged in the annular groove (51).

6. The variable diameter boring tool body according to claim 1, characterized in that: Limiting grooves (11) are provided on both sides of the surface of the knife seat (1).

7. The variable diameter boring tool body according to claim 5, characterized in that: The free end of the threaded rod (6) is fixedly connected with a torsion block (62).

8. The variable diameter boring tool body according to claim 6, characterized in that: Each of the limiting rods (21) is movably inserted into the limiting groove (11).

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