Rotating tire for boring machine

Abstract

The utility model relates to the technical field of boring machines, in particular to a rotating tire for a boring machine, which comprises a fixing seat, a boss matched with a spigot of the boring machine is arranged at the lower end of the fixing seat, and a fixing shaft is fixedly connected to the upper end of the middle of the fixing seat. The rotating tire body is arranged at the upper end of the fixed seat, a mounting hole is coaxially formed in the middle of the rotating tire body, and the rotating tire body is rotationally connected with the fixed shaft through the mounting hole; the connecting and positioning spigot is detachably connected to the upper end of the rotary tire body, the upper end of the connecting and positioning spigot is used for placing a workpiece, and a pressing lever used for pressing the workpiece is arranged on the upper side of the connecting and positioning spigot; an annular groove is formed in the upper end of the fixing base, and an annular boss matched with the annular groove is arranged on the outer edge of the lower end of the rotating tire body. By arranging the rotary matrix, the difficulty caused by the fact that a boring rod of a boring machine is not long enough and a workpiece needs to rotate is solved. The equipment can be used for positioning at different angles according to the requirements of workpieces and can be used for machining shaft holes at different angles.

Description

Technical Field

[0001] This utility model relates to the field of boring machine technology, and more specifically, to a boring machine rotor. Background Technology

[0002] In the field of machining, especially when dealing with long-distance or small-diameter hole systems with high coaxiality requirements, traditional boring machines struggle to complete high-quality machining tasks in one go due to limitations in boring bar length, vibration during machining, and the inability of the workpiece to rotate automatically. Specifically, when machining two high-precision shaft holes that are far apart simultaneously, the insufficient length of the boring bar in the standard configuration forces the operator to machine in sections, increasing the number of clamping operations and the risk of accumulated errors. For small-diameter deep holes, an excessively long boring bar can easily cause vibration, affecting surface quality and dimensional accuracy. Furthermore, since the workpiece cannot rotate automatically on the boring machine platform, the operator must manually adjust the workpiece position to machine holes at different angles, which is not only time-consuming and labor-intensive but also makes it difficult to ensure consistent accuracy after each adjustment.

[0003] Therefore, it is necessary to improve existing technologies. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, a boring machine spindle is provided that can improve the machining quality of coaxial holes and the machining of shaft holes at different angles.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A boring machine tool includes:

[0007] The fixed seat has a boss at the lower end that mates with the stop of the boring machine, and a fixed shaft is fixedly connected to the upper middle part of the fixed seat.

[0008] The rotating tire body is set on the upper end of the fixed base. A mounting hole is coaxially provided in the middle of the rotating tire body. The rotating tire body is rotatably connected to the fixed shaft through the mounting hole.

[0009] The connecting positioning stop is detachably connected to the upper end of the rotating body. The upper end of the connecting positioning stop is used to place the workpiece, and a pressure bar for pressing the workpiece is provided on the upper side of the connecting positioning stop.

[0010] The upper end of the fixed base is provided with an annular groove, and the lower outer edge of the rotating tire body is provided with an annular boss that mates with the annular groove. The side of the rotating tire body is provided with an oil injection port, and the oil injection port is connected to the lower end face of the annular boss through an internal pipeline of the rotating tire body.

[0011] Preferably, the fixed base is provided with a plurality of positioning pin holes, the rotating body is provided with positioning holes, a first positioning pin is inserted into the positioning holes, and the first positioning pin cooperates with one of the positioning pin holes.

[0012] Preferably, the fixing base is provided with screws on both sides, and the pressure bar is provided with connecting holes on both sides. The screws pass through the corresponding connecting holes and are locked with nuts.

[0013] Preferably, the fixed seat is provided with U-shaped grooves on both sides, and the fixed seat is connected to the boring machine platform through the U-shaped grooves and bolts.

[0014] Preferably, the fixing seat has a through hole in the middle, and the fixing shaft is vertically installed in the through hole and locked by a fastening screw.

[0015] Preferably, the connecting positioning stop is connected to the rotating tire body by a second positioning pin and an internal hex bolt.

[0016] Preferably, a self-lubricating bearing is provided between the rotating tire body and the fixed shaft.

[0017] The advantages of this utility model compared with the prior art are as follows:

[0018] 1. This utility model solves the difficulty caused by insufficient workpiece rotation when the boring bar of a boring machine is not long enough, by setting up a rotating jig. This equipment can be positioned at different angles according to the workpiece requirements and can process shaft holes at different angles.

[0019] 2. This utility model utilizes an oil film pressure-bearing design to relieve some of the direct pressure on the steel parts, reducing the friction between steel components, and even converting it entirely into pure liquid friction, thus improving the lifespan of the rotating jig. Changes in the speed and load of the rotating jig have minimal impact on the oil film thickness, resulting in good vibration resistance and increased workpiece stability during processing. Various connection and positioning stop parts can be configured according to the workpiece's positioning dimensions to process parts of various diameters. The jig has few parts, is simple to manufacture, easy to operate, highly applicable, and highly efficient. Attached Figure Description

[0020] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0021] Figure 1 This is a frontal cross-sectional view of the present invention.

[0022] Figure 2 This is a top view of the structure of this utility model.

[0023] In the diagram: 1-fixed seat, 11-boss, 12-annular groove, 13-screw, 14-nut, 15-U-groove, 16-tightening screw, 2-fixed shaft, 21-annular boss, 22-oil inlet, 3-rotating body, 31-mounting hole, 32-first locating pin, 33-second locating pin, 34-hex socket head cap screw, 35-self-lubricating bearing, 4-connecting locating stop, 5-workpiece, 6-pressure bar. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example:

[0026] like Figures 1 to 2 As shown, a boring machine swivel includes: a fixed seat 1, a fixed shaft 2, a rotating body 3, and a connecting positioning stop 4. The fixed seat 1 has U-shaped grooves 15 on both sides. The fixed seat 1 is fixed to the boring machine platform through the U-shaped grooves 15 and bolts. The lower end of the fixed seat 1 is provided with a boss 11 that mates with the boring machine stop. The boss 11 and the stop mate facilitate the quick positioning of the fixed seat 1.

[0027] A through hole is provided in the middle of the fixed base 1, and the fixed shaft 2 is vertically installed in the through hole and locked by the fastening screw 16. The rotating tire body 3 is installed on the upper end of the fixed base 1, and a mounting hole 31 is provided coaxially in the middle of the rotating tire body 3. The rotating tire body 3 is rotatably connected to the fixed shaft 2 through the mounting hole 31. Preferably, a self-lubricating bearing 35 is provided between the rotating tire body 3 and the fixed shaft 2 to reduce the friction when the rotating tire body 3 rotates.

[0028] The connecting positioning stop 4 is connected to the upper end of the rotating body 3. The upper end of the connecting positioning stop 4 is used to place the workpiece 5. When the rotating body 3 rotates, it drives the connecting positioning stop 4 and the workpiece 5 on it to rotate synchronously. Preferably, the connecting positioning stop 4 is connected to the rotating body 3 through a second positioning pin 33 and an internal hex bolt 34.

[0029] A pressure bar 6 is provided on the upper side of the connecting positioning stop 4. The pressure bar 6 clamps the workpiece 5 to prevent the workpiece from shifting during the boring machine operation. Preferably, screws 13 are provided on both sides of the fixed base 1, and connecting holes are provided on both sides of the pressure bar 6. The screws 13 pass through the corresponding connecting holes and are locked by nuts 14. When disassembly is required, the pressure bar 6 can be removed by unscrewing the nuts 14.

[0030] To further reduce friction and increase workpiece stability during machining, the upper end of the fixed base 1 is provided with an annular groove 12, and the lower outer edge of the rotating body 3 is provided with an annular boss 21 that mates with the annular groove 12. An oil inlet 22 is provided on the side of the rotating body 3, and the oil inlet 22 is connected to the lower end face of the annular boss 21 through an internal pipeline of the rotating body 3. Oil is injected into the annular groove 12 through the oil inlet 22, forming an oil film between the annular groove 12 and the annular boss 21. Utilizing the pressure of the oil film, some of the direct pressure on the steel parts is relieved, thus improving the lifespan of the rotating body. This reduces the friction between steel parts, even converting it entirely into pure liquid friction, further extending the lifespan of the rotating body.

[0031] After the rotating tire body 3 is rotated into position, in order to lock the rotating tire body 3 and the fixed seat 1, the fixed seat 1 is provided with several positioning pin holes, and the rotating tire body 3 is provided with positioning holes. By inserting the first positioning pin 32 into the positioning hole and one of the positioning pin holes, the rotating tire body 3 and the fixed seat 1 are relatively fixed.

[0032] Operating steps:

[0033] The rotating jig is fixed to the boring machine platform at the U-shaped groove with bolts. The workpiece is placed on the rotating jig 3 with different connecting positioning stops 4. After adjustment, the pressure bar 6 is tightened by screw 13 and nut 14. The tool is set, and the boring of the first shaft hole begins. After machining, the first positioning pin 32 is pulled out, the pressure bar 6 is removed, and the parts above the rotating jig 3 are rotated together to the required angle position. The first positioning pin is installed, and after adjustment, the pressure bar 6 is tightened. The tool is set, and the boring of the second shaft hole begins.

[0034] This is used to bore shafts with high coaxiality requirements or shafts at different angles.

[0035] The above description only describes the preferred embodiments of the present utility model. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model, and all such changes should be included within the protection scope of the present utility model.

Claims

1. A boring machine rotor, characterized in that, include: Fixed seat (1), the lower end of fixed seat (1) is provided with a boss (11) that matches the stop of the boring machine, and a fixed shaft (2) is fixedly connected to the upper part of the middle of fixed seat (1). The rotating tire body (3) is set on the upper end of the fixed base (1). The rotating tire body (3) has a mounting hole (31) coaxially arranged in the middle. The rotating tire body (3) is rotatably connected to the fixed shaft (2) through the mounting hole (31). The connecting positioning stop (4) is detachably connected to the upper end of the rotating body (3). The upper end of the connecting positioning stop (4) is used to place the workpiece (5). A pressure bar (6) for pressing the workpiece (5) is provided on the upper side of the connecting positioning stop (4). The upper end of the fixed base (1) is provided with an annular groove (12), and the lower outer edge of the rotating tire body (3) is provided with an annular boss (21) that cooperates with the annular groove (12). The side of the rotating tire body (3) is provided with an oil inlet (22), and the oil inlet (22) is connected to the lower end face of the annular boss (21) through the internal pipeline of the rotating tire body (3).

2. A boring machine rotary tool according to claim 1, characterized in that: The fixed base (1) is provided with a number of positioning pin holes, and the rotating body (3) is provided with positioning holes. A first positioning pin (32) is inserted into the positioning hole, and the first positioning pin (32) cooperates with one of the positioning pin holes.

3. A boring machine rotary tool according to claim 1, characterized in that: The fixed base (1) is provided with screws (13) on both sides, and the pressure bar (6) is provided with connecting holes on both sides. The screws (13) pass through the corresponding connecting holes and are locked by nuts (14).

4. A boring machine rotary tool according to claim 1, characterized in that: The fixed seat (1) is provided with U-shaped grooves (15) on both sides, and the fixed seat (1) is connected to the boring machine platform through the U-shaped grooves (15) and bolts.

5. A boring machine rotary tool according to claim 1, characterized in that: The fixed base (1) has a through hole in the middle, and the fixed shaft (2) is vertically installed in the through hole and locked by a fastening screw (16).

6. A boring machine rotary tool according to claim 1, characterized in that: The connecting positioning stop (4) is connected to the rotating tire body (3) through the second positioning pin (33) and the internal hex bolt (34).

7. A boring machine rotary tool according to claim 1, characterized in that: A self-lubricating bearing (35) is provided between the rotating tire body (3) and the fixed shaft (2).

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