Machining tool for efficiently improving quality of inner hole

Abstract

The utility model discloses a machining tool for efficiently improving the quality of an inner hole, and relates to the technical field of machining tools, three groups of chuck clamping jaws are arranged, the chuck clamping jaws are circumferentially arrayed on the surface of a chuck base, and a positioning assembly is arranged on the chuck base; the positioning assembly comprises a positioning groove, the positioning groove is formed in the upper surface of the chuck clamping jaw, a positioning hole is formed in the bottom of the positioning groove, a connecting block is clamped in the positioning groove, one side of the connecting block is fixedly connected with a positioning plate, and a first locking bolt is arranged on the connecting block. The locking knob is rotated to drive the chuck clamping jaw to synchronously and centripetally move, the positioning plates are driven to move through movement of the chuck clamping jaw, the gear is clamped and fixed, it is guaranteed that the gear is located in the center of the surface of the chuck base, inner holes of the gear are conveniently machined, and the gears with different diameters are clamped and fixed by replacing different positioning plates. Applicability is high, mounting and dismounting are fast, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of processing tooling, in particular to a processing tooling for efficiently improving the quality of inner holes. Background Technique

[0002] In the field of mechanical gear processing, gear processing has strict technological requirements. Generally, when finely turning the inner hole of a thin-walled gear, it is not easy to ensure the roundness of the inner hole and the runout of the tooth circle. When turning the inner hole on a lathe, clamping the outer circle for fine turning makes the gear prone to deformation, and the scrap rate is over 50%. To address this problem, it is proposed to clamp the end face. When the gear end face is stressed and clamped, and the inner hole is finely turned, the roundness of the inner hole does not change significantly during the loading and unloading of the gear, which can meet the technical requirements of customers.

[0003] After retrieval, the existing publicly disclosed patent application number is: CN202023263921.7, and the publicly disclosed patent name is: A tooling fixture for machining the inner hole of a thin-walled gear on a lathe, which includes a tooling base and an end face pressing cover. The end face of the tooling base is recessed downward to form a receiving chamber for receiving the thin-walled gear body. The end face pressing cover is arranged opposite to the tooling base and is used to press the thin-walled gear body. The end face pressing cover is annular, and an opening is provided at the central part of the end face pressing cover. The lathe turning tool extends into the receiving chamber through the opening for machining the thin-walled gear body. The tooling base is also provided with a fixing unit, and the fixing unit is used to fix the tooling base on the lathe chuck. The tooling fixture for machining the inner hole of a thin-walled gear on a lathe according to the utility model, when machining the inner hole of the thin-walled gear, the tooling base and the end face pressing cover are used in cooperation, so that the gear end face is stressed and clamped. When finely turning the inner hole, the inner hole of the thin-walled gear can be machined better, and the roundness of the inner hole can be protected better.

[0004] However, when the above device is used, it is necessary to turn the locking screw to fix the gear. When the locking screw is tightened, it cannot ensure that the gear is in the centered position, which is not conducive to the machining of the gear inner hole, and there are certain deficiencies. Content of the Utility Model

[0005] (1) Solved Technical Problems

[0006] Aiming at the deficiencies of the prior art, the utility model provides a processing tooling for efficiently improving the quality of inner holes, which solves the problem that the gear cannot be ensured to be in the centered position and is not conducive to the machining of the gear inner hole.

[0007] Technical Solution

[0008] To achieve the above object, the utility model is realized by the following technical solutions: A processing tooling for efficiently improving the quality of inner holes, comprising: a chuck base, on the surface of the chuck base is rotatably connected a locking knob, on the surface of the chuck base is slidably connected a chuck jaw, on the surface of the chuck base is provided with a through hole, there are three groups of the chuck jaws, the chuck jaws are circumferentially arrayed on the surface of the chuck base, and a positioning component is arranged on the chuck base;

[0009] The positioning component includes a positioning groove, the positioning groove is opened on the upper surface of the chuck jaw, a positioning hole is opened at the bottom of the positioning groove, a connecting block is clamped in the positioning groove, one side of the connecting block is fixedly connected with a positioning plate, and a first locking bolt is arranged on the connecting block.

[0010] Preferably, a through hole having the same size as the positioning hole is opened on the surface of the connecting block, an internal thread is arranged in the positioning hole, and the first locking bolt is threadedly connected with the positioning hole.

[0011] Preferably, a rubber pad is arranged on the surface of the positioning plate, and a gear is arranged on the surface of the chuck base.

[0012] Preferably, a fixing component is arranged on the chuck base, the fixing component includes fixing holes, the fixing holes are symmetrically arranged on the surface of the chuck base, a second locking bolt is threadedly connected in the fixing holes, an installation plate is slidably connected to the surface of the second locking bolt, one side of the installation plate is fixedly connected with a fixing limit ring, and a processing hole is opened on the fixing limit ring.

[0013] Preferably, an anti-slip pad is arranged on one side of the fixing limit ring, and the inner diameter of the processing hole is smaller than the inner diameter of the through hole.

[0014] Preferably, the positioning plate is arranged in an arc shape, and the side of the positioning plate close to the chuck base is arranged parallel to the surface of the chuck base.

[0015] Preferably, there are three groups of the chuck jaws, and the three groups of the chuck jaws are arranged to move synchronously.

[0016] Beneficial effects

[0017] The utility model provides a processing tooling for efficiently improving the quality of inner holes. Compared with the prior art, it has at least the following beneficial effects:

[0018] Rotate the locking knob to drive the chuck jaws to move synchronously centripetally. Drive the positioning plate to move through the movement of the chuck jaws, clamp and fix the gear, ensure that the gear is in the central position on the surface of the chuck base, facilitate the processing of the inner hole of the gear, and clamp and fix gears with different diameters by replacing different positioning plates, with strong applicability, quick installation and disassembly, and easy to use. Description of the drawings

[0019] Figure 1 is a schematic structural diagram of the present utility model;

[0020] Figure 2 is a schematic structural diagram of the fixing component of the present utility model;

[0021] Figure 3 is a schematic structural diagram of the positioning component of the present utility model;

[0022] Figure 4 is a schematic structural diagram of the positioning hole of the present utility model.

[0023] In the figure: 1. Chuck base; 2. Chuck jaw; 3. Locking knob; 4. Through hole; 5. Gear; 6. Positioning component; 601. Positioning groove; 602. Positioning hole; 603. Connecting block; 604. Positioning plate; 605. First locking bolt; 7. Fixing component; 701. Fixing hole; 702. Second locking bolt; 703. Mounting plate; 704. Fixed limit ring; 705. Machining hole. Specific embodiments

[0024] 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 the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment 1:

[0026] Please refer to Figures 1-4 , the present utility model provides a technical solution: a chuck base 1, a locking knob 3 is rotatably connected to the surface of the chuck base 1, a chuck jaw 2 is slidably connected to the surface of the chuck base 1, a through hole 4 is opened on the surface of the chuck base 1, three groups of chuck jaws 2 are provided, the chuck jaws 2 are arranged in a circumferential array on the surface of the chuck base 1, and a positioning component 6 is provided on the chuck base 1;

[0027] The positioning component 6 includes a positioning groove 601, the positioning groove 601 is opened on the upper surface of the chuck jaw 2, a positioning hole 602 is opened at the bottom of the positioning groove 601, a connecting block 603 is clamped in the positioning groove 601, a positioning plate 604 is fixedly connected to one side of the connecting block 603, and a first locking bolt 605 is provided on the connecting block 603. Three groups of chuck jaws 2 are provided, and the three groups of chuck jaws 2 are arranged to move synchronously.

[0028] Analysis of the above content: Rotating the locking knob 3 drives the chuck jaws 2 to move centripetally synchronously. By the movement of the chuck jaws 2, the positioning plate 604 is driven to move, clamping and fixing the gear 5 to ensure that the gear 5 is centered on the surface of the chuck base 1, facilitating the machining of the inner hole of the gear 5. By replacing different positioning plates 604, gears 5 with different diameters can be clamped and fixed, with strong applicability, quick installation and disassembly, and easy to use.

[0029] Embodiment 2:

[0030] Please refer to Figures 1-4 , based on Embodiment 1, the present utility model provides a technical solution: A through hole having the same size as the positioning hole 602 is provided on the surface of the connecting block 603. An internal thread is provided in the positioning hole 602, and the first locking bolt 605 is threadedly connected to the positioning hole 602.

[0031] Analysis of the above content: The connecting block 603 is fixed above the chuck jaws 2 by the first locking bolt 605. By turning the first locking bolt 605, the connecting block 603 can be quickly installed and disassembled, facilitating the replacement of the positioning plate 604 with different arcs according to the diameter of the gear 5.

[0032] Embodiment 3:

[0033] Please refer to Figures 1-4 , based on Embodiment 1, the present utility model provides a technical solution: A rubber pad is provided on the surface of the positioning plate 604, and a gear 5 is provided on the surface of the chuck base 1.

[0034] Analysis of the above content: The rubber pad is provided to reduce the damage to the gear 5 and improve the machining effect.

[0035] Embodiment 4:

[0036] Please refer to Figures 1-4 , based on Embodiment 1, the present utility model provides a technical solution: A fixing component 7 is provided on the chuck base 1. The fixing component 7 includes fixing holes 701 which are symmetrically arranged on the surface of the chuck base 1. A second locking bolt 702 is threadedly connected in the fixing hole 701. An installation plate 703 is slidably connected to the surface of the second locking bolt 702. One side of the installation plate 703 is fixedly connected with a fixing limit ring 704, and a machining hole 705 is provided on the fixing limit ring 704.

[0037] Analysis of the above content: The installation plate 703 is pressed by the second locking bolt 702, and the surface of the gear 5 is pressed and fixed by the fixing limit ring 704, reducing the pressure on the outer ring of the gear 5 and avoiding the scrapping of the gear 5.

[0038] Embodiment 5:

[0039] Please refer to Figures 1-4, the present utility model provides a technical solution based on Embodiment 1: An anti-slip pad is provided on one side of the fixed limit ring 704, and the inner diameter of the processing hole 705 is smaller than the inner diameter of the through hole 4.

[0040] Analysis of the above content: An anti-slip pad is provided to improve the fixing effect on the gear 5.

[0041] Embodiment 6:

[0042] Please refer to Figures 1-4 , the present utility model provides a technical solution based on Embodiment 1: The positioning plate 604 is provided in an arc shape, and the side of the positioning plate 604 close to the chuck base 1 is arranged parallel to the surface of the chuck base 1.

[0043] Analysis of the above content: The positioning plate 604 is provided in an arc shape to increase the contact area with the gear 5, reduce the pressure on the outer ring of the gear 5, and avoid damaging the gear 5.

[0044] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0045] Although the embodiments of the present utility model 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 utility model, and the scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A processing tooling for efficiently improving the quality of internal holes, characterized in that, Comprising: A chuck base (1), on the surface of which a locking knob (3) is rotatably connected, a chuck jaw (2) is slidably connected on the surface of the chuck base (1), a through hole (4) is formed on the surface of the chuck base (1), there are three groups of the chuck jaws (2), the chuck jaws (2) are circumferentially arrayed on the surface of the chuck base (1), and a positioning component (6) is arranged on the chuck base (1); The positioning component (6) includes a positioning groove (601) formed on the upper surface of the chuck jaw (2), a positioning hole (602) is formed at the bottom of the positioning groove (601), a connecting block (603) is clamped in the positioning groove (601), a positioning plate (604) is fixedly connected to one side of the connecting block (603), and a first locking bolt (605) is arranged on the connecting block (603).

2. The processing tooling for efficiently improving the inner hole quality according to claim 1, wherein: A through hole having the same size as the positioning hole (602) is formed on the surface of the connecting block (603), internal threads are provided in the positioning hole (602), and the first locking bolt (605) is threadedly connected to the positioning hole (602).

3. The processing tooling for efficiently improving the inner hole quality according to claim 2, characterized in that: A rubber pad is arranged on the surface of the positioning plate (604), and a gear (5) is arranged on the surface of the chuck base (1).

4. The processing tooling for efficiently improving the quality of the inner hole according to claim 1, characterized in that: A fixing component (7) is arranged on the chuck base (1), the fixing component (7) includes fixing holes (701) symmetrically arranged on the surface of the chuck base (1), a second locking bolt (702) is threadedly connected in the fixing holes (701), a mounting plate (703) is slidably connected on the surface of the second locking bolt (702), a fixing limiting ring (704) is fixedly connected to one side of the mounting plate (703), and a processing hole (705) is formed in the fixing limiting ring (704).

5. The processing tooling for efficiently improving the inner hole quality according to claim 4, characterized in that: An anti-slip pad is arranged on one side of the fixing limiting ring (704), and the inner diameter of the processing hole (705) is smaller than the inner diameter of the through hole (4).

6. The processing tooling for efficiently improving the inner hole quality according to claim 1, characterized in that: The positioning plate (604) is arranged to be arc-shaped, and the side of the positioning plate (604) close to the chuck base (1) is arranged parallel to the surface of the chuck base (1).

7. The processing tooling for efficiently improving the inner hole quality according to claim 1, wherein: There are three groups of the chuck jaws (2), and the three groups of the chuck jaws (2) are arranged to move synchronously.

Images