Fine boring cutter for shaft hole machining

Abstract

The utility model discloses a fine boring cutter for shaft hole processing, which comprises a base, a rack, a butt joint rod, a boring cutter, a support plate and a linkage mechanism, and is characterized in that the rack is connected to the top of the base in a sliding manner, the butt joint rod is horizontally fixed on one side of the bottom of the rack, the boring cutter is connected to one end, far away from the rack, of the butt joint rod, and the support plate is vertically fixed on one side of the base. The numerical control boring machine has the advantages that the linkage mechanism is arranged, the servo motor drives the driving gear to rotate, the driven gear is meshed and linked, the adjusting gear is driven to synchronously link, the rack is meshed and linked through the adjusting gear, and the boring cutter is driven to move through the rack. And when a stop lever of the rack abuts against the positioning rod, the rack drives the driven seat to move to the adjusting gear, the adjusting gear abuts against the abutting plate in a sliding mode, damage caused by tooth collision between the adjusting gear and the rack is avoided, and the adjusting gear is effectively protected.

Description

TECHNICAL FIELD

[0001] The utility model relates to a fine boring cutter, concretely to a fine boring cutter for shaft hole machining belongs to boring cutter technical field. BACKGROUND

[0002] According to the use demand, a large number of workpieces need to be bored, in machining, the workpiece needing to be bored is fixed on the machine tool, the boring cutter for machining precision aperture is installed on the tool rest of the machine tool, the boring cutter for machining precision aperture is positioned on the position of the workpiece needing to be bored, the machine tool is started, and the workpiece rotates around the boring cutter according to the setting, and the boring cutter bores the required hole on the workpiece.

[0003] However, the existing fine boring cutter has various problems, for example, in the boring cutter for machining precision aperture disclosed in the publication No. CN206622634U, the boring diameter is uniformly stressed during boring, the cutter is prevented from torsional runout, the inner surface precision of the hole is improved, the hole diameter is accurate, the process requirement is met, and the working efficiency is improved, but during the machining of the boring hole, the boring cutter needs to gradually penetrate into the workpiece as the machining depth increases, at present, in the structure of gear and rack meshing linkage, the boring cutter can be driven to gradually penetrate into the workpiece for cutting, but when the gear moves to the end of the rack, the gear will continue to rotate, thereby causing the collision and tooth impact between the gear and the rack, and the gear is worn and damaged. UTILITY MODEL CONTENT

[0004] The utility model technical scheme provides a solution significantly different from the prior art in view of the technical problem that the prior art solution is too single, and specifically, the purpose of the utility model is to solve the above-mentioned shortcomings in the prior art, and a fine boring cutter for shaft hole machining is provided.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A fine boring cutter for shaft hole machining, comprising a base, a rack, a butt joint rod, a boring cutter, a support plate and a linkage mechanism, the rack is slidingly connected to the top of the base, the butt joint rod is horizontally fixed to one side of the bottom of the rack, the boring cutter is connected to the end of the butt joint rod away from the rack, and the support plate is vertically fixed to one side of the base.

[0007] The linkage mechanism is arranged on the base, and comprises a protrusion, a driven seat, a first guide rod, an abutting plate and an adjusting gear, the protrusion is fixed on the side wall of the rack, the driven seat is located on one side of the rack, one end of the first guide rod is fixed on the driven seat, the other end penetrates through the protrusion and is in sliding connection with the protrusion, and the abutting plate is fixed on the top of the driven seat.

[0008] As a further scheme of the utility model: the first guide rod is externally sleeved with a reset spring, one end of the reset spring is in abutment with the driven seat, and the other end is in abutment with the protrusion.

[0009] As a further scheme of the utility model: the linkage mechanism further comprises a stop rod and a positioning rod, the stop rod is horizontally fixed at the center of the rack, the positioning rod is vertically fixed on the base and is symmetrically provided with two, and the stop rod is located between the two adjacent positioning rods.

[0010] As a further scheme of the utility model: the linkage mechanism further comprises a servo motor, a driven gear and a driving gear, the servo motor is fixed on the support plate, the driving gear is coaxially fixed on the output shaft of the servo motor, the driven gear is coaxially fixed with the adjusting gear, and the driven gear is in meshing connection with the driving gear.

[0011] As a further scheme of the utility model: the diameter of the driven gear is at least twice that of the driving gear.

[0012] As a further scheme of the utility model: the butt joint end of the butt joint rod and the boring cutter is fixed with a rectangular plate, and the two ends of the rectangular plate are symmetrically fixed with second guide rods, and the second guide rods are in sliding connection with the base.

[0013] The utility model discloses the beneficial effects are:

[0014] In the utility model, through setting up linkage mechanism, then through servo motor drive driving gear rotation, and make driven gear meshing linkage, then drive adjusting gear synchronous linkage, make rack meshing linkage through adjusting gear, then drive boring cutter to move through rack, then realize the quick adjustment of workpiece boring depth, when the stop rod of rack and the positioning rod abut, the rack drives the driven seat to move to the adjusting gear, and the adjusting gear and the abutting plate slide abut through the adjusting gear, then drive the driven seat and the first guide rod to slide integrally, avoid the collision and the tooth of adjusting gear and rack and damage, effectively protect adjusting gear. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is external whole structure schematic diagram of the utility model;

[0016] Fig. 2The utility model discloses a base and whole connection structure schematic drawing thereof;

[0017] Fig. 3 The utility model discloses a linkage mechanism structure schematic drawing;

[0018] Fig. 4 The utility model discloses a driving gear and whole connection structure schematic drawing thereof.

[0019] In the drawing: 1, base, 2, rack, 3, butt joint rod, 4, boring cutter, 5, support plate, 6, linkage mechanism, 61, lug, 62, driven seat, 63, first guide rod, 64, abutment plate, 65, adjusting gear, 66, return spring, 67, stop rod, 68, positioning rod, 69, servo motor, 610, driven gear, 611, driving gear, 7, second guide rod. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model. Embodiment one

[0021] As Figs. 1 to 4 shown, a kind of boring cutter for shaft hole processing, including base 1, rack 2, butt joint rod 3, boring cutter 4, support plate 5 and linkage mechanism 6, rack 2 sliding connection is in the top of base 1, butt joint rod 3 is fixed in the bottom side of rack 2, boring cutter 4 is connected in the end of butt joint rod 3 away from rack 2, support plate 5 is vertically fixed in the side of base 1;

[0022] Linkage mechanism 6 is arranged on base 1, and linkage mechanism 6 includes lug 61, driven seat 62, first guide rod 63, abutment plate 64 and adjusting gear 65, lug 61 is fixed on the side wall of rack 2, driven seat 62 is located in the side of rack 2, one end of first guide rod 63 is fixed on driven seat 62, the other end passes through lug 61, and is slidingly connected with lug 61, abutment plate 64 is fixed on the top of driven seat 62, adjusting gear 65 is rotatably connected on support plate 5, and adjusting gear 65 is engaged with rack 2;

[0023] Linkage mechanism 6 further includes stop rod 67 and positioning rod 68, stop rod 67 is horizontally fixed at the center of rack 2, positioning rod 68 is vertically fixed on base 1, and symmetrically provided with two, stop rod 67 is located between the adjacent two positioning rods 68;

[0024] The linkage mechanism 6 further comprises a servo motor 69, a driven gear 610 and a driving gear 611, the servo motor 69 is fixed on the support plate 5, the driving gear 611 is coaxially fixed on the output shaft of the servo motor 69, the driven gear 610 is coaxially fixed with the adjusting gear 65, and the driven gear 610 is engaged with the driving gear 611.

[0025] In the utility model, through setting linkage mechanism 6, further through servo motor 69 drive driving gear 611 rotation, and make driven gear 610 meshing linkage, further drive adjusting gear 65 synchronous linkage, through adjusting gear 65 make rack 2 meshing linkage, further through rack 2 drive boring cutter 4 movement, further realize the quick adjustment of workpiece boring depth, when the stop lever 67 of rack 2 and the abutment of positioning rod 68, rack 2 drive driven seat 62 moves to adjusting gear 65, through adjusting gear 65 and the sliding abutment of abutment plate 64, further drive driven seat 62 and first guide rod 63 integral sliding, avoid adjusting gear 65 and rack 2 between the collision and damage of gear, effectively protect adjusting gear 65. Embodiment two

[0026] As Figs. 1 to 4 Indicated, this embodiment includes all technical features in embodiment one, further includes:

[0027] The first guide rod 63 is externally sleeved with a reset spring 66, one end of the reset spring 66 is in abutment with the driven seat 62, and the other end is in abutment with the protruding block 61, and the reset spring 66 can quickly reset the driven seat 62 through the elastic force.

[0028] The diameter of the driven gear 610 is at least twice that of the driving gear 611, and the torque of the servo motor 69 is improved through the gear set with different diameters.

[0029] The butt joint rod 3 is fixed with a rectangular plate at the butt joint end of the boring cutter 4, and the second guide rod 7 is symmetrically fixed at both ends of the rectangular plate, the second guide rod 7 is in sliding connection with the base 1, and the butt joint rod 3 can be directionally slid through the second guide rod 7.

[0030] Working principle: when the fine boring cutter is used, the boring cutter 4 is first fixed at one end of the butt joint rod 3, then the workpiece is placed on the machine tool, and the workpiece is rotated at high speed by the machine tool, at this time the driving gear 611 is driven to rotate by the servo motor 69, the driven gear 610 is engaged and linked, the adjusting gear 65 is synchronously linked, the rack 2 is engaged and linked by the adjusting gear 65, the boring cutter 4 is moved by the rack 2, the boring cutter 4 is abutted with the workpiece, and the workpiece is milled, when the stop lever 67 of the rack 2 abuts with the positioning rod 68, the rack 2 drives the driven seat 62 to move to the adjusting gear 65, the adjusting gear 65 and the abutment plate 64 slide and abut, and then the driven seat 62 and the first guide rod 63 slide as a whole, so that the adjusting gear 65 and the rack 2 are prevented from colliding and damaging the gear teeth.

[0031] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0032] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A fine boring tool for machining shaft holes, comprising a base (1), a rack (2), a docking rod (3), a boring tool (4), a support plate (5) and a linkage mechanism (6), characterized in that: The rack (2) is slidably connected to the top of the base (1), the docking rod (3) is horizontally fixed to one side of the bottom of the rack (2), the boring tool (4) is connected to the end of the docking rod (3) away from the rack (2), and the support plate (5) is vertically fixed to one side of the base (1); The linkage mechanism (6) is arranged on the base (1), and the linkage mechanism (6) includes a protrusion (61), a driven seat (62), a first guide rod (63), an abutment plate (64) and an adjustment gear (65), wherein the protrusion (61) is fixed on the side wall of the rack (2), the driven seat (62) is located on one side of the rack (2), one end of the first guide rod (63) is fixed on the driven seat (62), and the other end passes through the protrusion (61) and is slidably connected to the protrusion (61), the abutment plate (64) is fixed on the top of the driven seat (62), the adjustment gear (65) is rotatably connected to the support plate (5), and the adjustment gear (65) is engaged with the rack (2).

2. A fine boring tool for shaft hole machining according to claim 1, characterized in that: A return spring (66) is sleeved on the outside of the first guide rod (63), one end of the return spring (66) abuts against the driven seat (62), and the other end abuts against the protrusion (61).

3. The fine boring tool for shaft hole machining according to claim 1, characterized in that: The linkage mechanism (6) further comprises a blocking rod (67) and a positioning rod (68), wherein the blocking rod (67) is horizontally fixed at the center of the rack (2), and the positioning rod (68) is vertically fixed on the base (1), and two of the positioning rods (68) are symmetrically arranged, and the blocking rod (67) is located between two adjacent positioning rods (68).

4. The fine boring tool for shaft hole machining according to claim 1, characterized in that: The linkage mechanism (6) further comprises a servo motor (69), a driven gear (610) and a driving gear (611), wherein the servo motor (69) is fixed on the support plate (5), the driving gear (611) is coaxially fixed on the output shaft of the servo motor (69), the driven gear (610) is coaxially fixed to the adjustment gear (65), and the driven gear (610) is meshed with the driving gear (611).

5. A fine boring tool for shaft hole machining according to claim 4, characterized in that: The diameter of the driven gear (610) is at least twice that of the driving gear (611).

6. The fine boring tool for shaft hole machining according to claim 1, characterized in that: A rectangular plate is fixed to the butt end of the butt rod (3) and the boring tool (4), and second guide rods (7) are symmetrically fixed at both ends of the rectangular plate. The second guide rods (7) are slidably connected to the base (1).

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