Mirror finish machining cutter fine adjustment structure

Abstract

The utility model provides a fine adjustment structure of a mirror finishing cutter, which relates to the technical field of machining and comprises a cutter bar, a cutter holder and a blade. The fine adjustment mechanism comprises a fine adjustment sleeve rotationally connected to the top of the cutter bar, a fine adjustment screw connected to the fine adjustment sleeve and a fine adjustment frustum arranged on the fine adjustment screw in a sleeving mode, the cutter holder is connected to the frustum side face of the fine adjustment frustum in a sliding fit mode, and a damping mechanism is fixed to the bottom of the cutter bar. The damping mechanism comprises a damping base, a damping block and a plurality of damping springs, the damping base is fixed to the lower end of the cutter bar, and the damping springs are circumferentially distributed and connected between the damping base and the damping block. Eccentric shaking of the cutter is reduced through the damping ring, the rotation stability of the cutter bar is achieved, and the finish machining mirror surface effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a mirror surface finishing tool fine-tuning structure. Background Art

[0002] With the advancement of technology, the design and quality requirements of mechanical products are becoming more and more stringent, so the requirements for mechanical processing are also getting higher and higher. Not only are the quality requirements strict, but also the cost is required to be low. The competitive pressure is getting greater and greater, almost to the point of being harsh, especially in the type of hole processing. Many industries require the diameter size, roundness, and straightness of the hole to reach micron-level accuracy, and the roughness to reach a mirror effect.

[0003] Usually, a finishing tool consists of a tool bar, a tool holder and a blade. In order to facilitate the adjustment of the tool, an eccentric connection is usually used between the tool bar and the tool holder to adjust the position of the blade. This eccentric connection will cause the overall center of gravity of the tool to shift, and the tool will shake slightly during rotation, affecting the roughness of the machined surface. 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 mirror finishing tool fine-tuning structure, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

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

[0008] A mirror finishing tool fine-tuning structure comprises a tool rod, a tool holder and a blade, wherein the blade is fixed at the front end of the tool holder, the tool holder is slidably connected to the tool rod, a fine-tuning mechanism is arranged inside the tool rod, the fine-tuning mechanism comprises a fine-tuning sleeve rotatably connected to the top of the tool rod, a fine-tuning screw connected to the fine-tuning sleeve, and a fine-tuning cone sleeved on the fine-tuning screw, the tool holder is slidably connected to the cone side of the fine-tuning cone, and a damping mechanism is fixed to the bottom of the tool rod.

[0009] Preferably, the damping mechanism comprises a damping base, a damping block and a plurality of damping springs, the damping base is fixed to the lower end of the knife rod, and the plurality of damping springs are circumferentially distributed and connected between the damping base and the damping block.

[0010] Preferably, a damping ring is fixed at the bottom of the damping base, a plurality of damping screws are slidably connected to the damping ring, the damping spring is connected between the damping block and the damping screw, a damping gear is rotatably connected to the outer side of the damping ring, the damping gear is threadedly matched with the damping screw, an adjustment ring is provided at the top of the damping base, a damping gear ring is provided inside the adjustment ring, and the damping gear ring is meshed with the damping gear.

[0011] Preferably, a connecting sleeve is provided on the damping base, the adjusting ring is rotatably connected to the connecting sleeve, the connecting sleeve is fixed to the lower end of the knife rod, and a locking bolt is connected between the mounting sleeve and the damping ring.

[0012] Preferably, a locking mechanism is connected between the connecting sleeve and the damping ring, and the locking mechanism includes a locking tooth ring and a locking slider. A locking ring groove is provided on the upper side of the damping tooth ring, and a plurality of locking teeth are provided on the side wall of the locking ring groove. The locking slider is slidably connected in the locking ring groove, and the locking slider is engaged with the locking teeth in a concave-convex manner. The locking slider is threadedly connected to the locking bolt.

[0013] Preferably, a guide rod is extended outwardly from the side wall of the damping ring, and the guide rod is slidably connected to the locking slider.

[0014] (III) Beneficial effects

[0015] The utility model provides a mirror finishing tool fine-tuning structure, which has the following beneficial effects:

[0016] The damping block in the utility model can play a role of shock absorption for the rotating eccentric tool, can reduce the shaking of the eccentric tool rod during the rotation process, and increase the precision of tool processing to achieve a mirror effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the mechanism of a mirror finishing tool fine-tuning structure of the utility model;

[0018] Figure 2 It is a partial structural schematic diagram of the fine adjustment mechanism in the utility model;

[0019] Figure 3 It is a structural schematic diagram of the damping mechanism in the utility model;

[0020] Figure 4 The cross-sectional view of the damping mechanism in the utility model Figure 1 ;

[0021] Figure 5 The cross-sectional view of the damping mechanism in the utility model Figure 2 .

[0022] In the figure: 1. tool rod; 2. tool holder; 3. blade; 4. fine-tuning sleeve; 5. fine-tuning screw; 6. fine-tuning cone; 7. damping base; 8. damping block; 9. damping spring; 10. damping ring; 11. damping screw; 12. damping gear; 13. adjusting ring; 14. damping gear ring; 15. connecting sleeve; 16. locking bolt; 17. locking slide; 18. locking tooth; 19. guide rod. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0024] The utility model provides a mirror surface finishing tool fine-tuning structure.

[0025] like Figure 1-3As shown, it includes a tool bar 1, a tool seat 2 and a blade 3, the blade 3 is detachably fixed to the front end of the tool seat 2, the side wall of the tool bar 1 is provided with a sliding hole that matches the tool seat 2, the tool seat 2 is slidably connected to the sliding hole of the tool bar 1, and a fine-tuning mechanism is arranged inside the tool bar 1, the fine-tuning mechanism includes a fine-tuning sleeve 4 rotatably connected to the top of the tool bar 1, a fine-tuning screw 5 connected to the fine-tuning sleeve 4, and a fine-tuning cone 6 sleeved on the fine-tuning screw 5, the cone side wall of the fine-tuning cone 6 is provided with a limiting slide groove with the same inclination as the cone side wall, A limit slider is provided on the side of the tool holder 2 facing the fine-tuning cone 6, and the limit slider is slidably matched with the limit slide groove. A damping mechanism is threadedly connected to the bottom of the tool rod 1, and the damping mechanism includes a damping base 7, a damping block 8 and a plurality of damping springs 9. The plurality of damping springs 9 are circumferentially distributed and connected between the damping base 7 and the damping block 8. A damping ring 10 is fixed to the bottom of the damping base 7, and a plurality of damping screws 11 are slidably connected to the damping ring 10. The damping spring 9 is connected between the damping block 8 and the damping screw 11. A damping gear 12 is rotatably connected to the outside, and the damping gear 12 is threadedly matched with the damping screw 11. An adjusting ring 13 is provided on the top of the damping base 7, and a damping gear ring 14 is provided inside the adjusting ring 13. The damping gear ring 14 meshes with the damping gear 12. A connecting sleeve 15 is provided on the damping base 7, and the connecting sleeve 15 is threadedly connected to the lower end of the knife rod 1. The adjusting ring 13 is rotatably connected to the connecting sleeve 15, and the connecting sleeve 15 is fixed to the lower end of the knife rod 1. A locking sleeve is connected between the mounting sleeve and the damping ring 10. Bolt 16, a locking mechanism is connected between the connecting sleeve 15 and the damping ring 10, and the locking mechanism includes a locking slider 17. A locking ring groove is provided on the upper side of the damping tooth ring 14, and a plurality of locking teeth 18 are provided on the side wall of the locking ring groove. The locking slider 17 is slidably connected in the locking ring groove, and the locking slider 17 and the locking teeth 18 are engaged with each other in a concave-convex manner. The locking slider 17 is threadedly connected to the locking bolt 16, and a guide rod 19 is extended outward from the side wall of the damping ring 10, and the guide rod 19 is slidably connected to the locking slider 17.

[0026] Working principle:

[0027] In the utility model, the fine-tuning sleeve 4 is rotated to make the fine-tuning cone 6 slide on the fine-tuning screw 5, and the tool holder 2 can be pushed to expand and contract on the side wall of the tool rod 1 by tilting the limit slide groove, so as to change the diameter of the blade 3 to adapt to the cutting of holes with different inner diameters. The damping mechanism arranged at the bottom of the tool rod 1 can reduce the amplitude through the damping block 8 in the damping ring 10 along with the vibration and shaking of the bottom of the tool rod 1, thereby reducing the eccentric shaking amplitude of the tool rod 1, and achieving the effect of mirror processing. At the same time, as the telescopic position of the tool holder 2 is different, the eccentric center of gravity of the tool rod 1 will also change, which can be adjusted by rotating the locking bolt 1 6 makes the locking slider 17 slide in the locking ring groove until it disengages from the locking tooth 18, and the damping gear ring 14 and the damping ring 10 are unlocked. At this time, the adjusting ring 13 can be rotated to make the damping ring 10 rotate relative to the damping base 7. The damping gear ring 14 drives the damping gear 12 to rotate on the outer wall of the damping ring 10. The damping screw 11 slides left and right on the damping gear 12 through threaded cooperation to adjust the pressure of the damping spring 9 on the damping block 8, so as to adjust the shaking amplitude of the damping block 8 to match the change of the eccentric center of gravity of the tool rod 1, so as to achieve the best damping effect, ensure the stable operation of the tool rod 1, and achieve the accuracy of mirror processing.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mirror finishing tool fine-tuning structure, comprising a tool bar, a tool holder and a blade, wherein the blade is fixed at the front end of the tool holder, and is characterized in that: The tool holder is slidably connected to the tool rod, and a fine-tuning mechanism is arranged inside the tool rod. The fine-tuning mechanism includes a fine-tuning sleeve rotatably connected to the top of the tool rod, a fine-tuning screw connected to the fine-tuning sleeve, and a fine-tuning cone sleeved on the fine-tuning screw. The tool holder is slidably connected to the cone side of the fine-tuning cone, and a damping mechanism is fixed to the bottom of the tool rod.

2. The mirror finishing tool fine-tuning structure according to claim 1, characterized in that: The damping mechanism comprises a damping base, a damping block and a plurality of damping springs. The damping base is fixed at the lower end of the knife rod, and the plurality of damping springs are circumferentially distributed and connected between the damping base and the damping block.

3. The mirror finishing tool fine-tuning structure according to claim 2, characterized in that: A damping ring is fixed at the bottom of the damping base, and a plurality of damping screws are slidably connected to the damping ring. The damping spring is connected between the damping block and the damping screw. A damping gear is rotatably connected to the outer side of the damping ring, and the damping gear is threadedly matched with the damping screw. An adjusting ring is arranged on the top of the damping base, and a damping gear ring is arranged inside the adjusting ring, and the damping gear ring is meshed with the damping gear.

4. The mirror finishing tool fine-tuning structure according to claim 3, characterized in that: A connecting sleeve is arranged on the damping base, the adjusting ring is rotatably connected to the connecting sleeve, the connecting sleeve is fixed to the lower end of the knife rod, and a locking bolt is connected between the connecting sleeve and the damping ring.

5. The mirror finishing tool fine-tuning structure according to claim 4, characterized in that: A locking mechanism is connected between the connecting sleeve and the damping ring, and the locking mechanism includes a locking toothed ring and a locking slider. A locking ring groove is provided on the upper side of the damping toothed ring, and a plurality of locking teeth are provided on the side wall of the locking ring groove. The locking slider is slidably connected in the locking ring groove, and the locking slider is engaged with the locking teeth in a concave-convex manner. The locking slider is threadedly connected to the locking bolt.

6. The mirror finishing tool fine-tuning structure according to claim 5, characterized in that: A guide rod is extended outwardly from the side wall of the damping ring, and the guide rod is slidably connected with the locking slider.

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