Long-shaft thin-wall part length sizing device for numerical control machine tool

Abstract

The utility model discloses a long-shaft thin-wall part length sizing device for a numerical control machine tool, which comprises a sliding rod which is arranged in a spindle box and slides in the spindle box, a rotating shaft which is arranged in the sliding rod and rotates in the sliding rod, and a material blocking bracket which is arranged at the front end of the rotating shaft and is matched with the end part of a long-shaft thin-wall part, the length sizing device is installed on the spindle box, the length sizing device is adjusted through front-back movement of a sliding rod in the length direction, the diameter size is mainly adjusted through rotation of a rotating shaft, and the front-back position is fixed after the sliding rod moves in place in the front-back direction, when the long-shaft thin-wall part is installed, the rotating shaft rotates, the end of a material blocking support makes contact with the end of the long-shaft thin-wall part, and the long-shaft thin-wall part is fixed. Therefore, the fixed length of the end part of the long-shaft thin-wall part is realized, thin-wall parts with different diameters are adapted, the problem of workpiece diameter adaptability is well solved, the tool can be mounted on the upper side of a lathe spindle, the machining space of a machine tool is effectively avoided, and the risk of interference with a carriage, a sliding plate and a tool rest of the machine tool is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of machining, in particular to a length-sizing device for long-axis thin-wall parts used in numerically controlled machine tools. Background Art

[0002] With the continuous development of industries such as shipping, mining, electricity, transportation, water conservancy, and pipeline transportation, the demand for various long-axis thin-walled parts is also growing. These parts often have a large aspect ratio. Traditional lathes often require multiple center frames to support and clamp parts with such characteristics, which can easily cause waste. In addition, the tailstock mechanism of traditional lathes can only meet the length determination of solid long-axis parts, and it is difficult to achieve length positioning for long-axis thin-walled parts of multiple specifications. If the length of long-axis thin-walled parts is limited by the positioning head, the positioning head will interfere with the replacement of the workpiece after the previous workpiece is processed. Utility Model Content

[0003] The utility model aims to solve the above problems and provides a length-sizing device for long-axis thin-walled parts for CNC machine tools, which can adapt to the end positioning of long-axis thin-walled parts of different lengths and diameters and will not interfere with the replacement of parts.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A device for sizing the length of long-axis thin-walled parts for CNC machine tools comprises a slide bar arranged in a spindle box and sliding in the spindle box, a rotating shaft arranged in the slide bar and rotating in the slide bar, and a material stop bracket cooperating with the end of the long-axis thin-walled part is provided at the front end of the rotating shaft.

[0006] Furthermore, a lead screw rotating in the spindle box is provided at the rear end of the spindle box, and the lead screw passes through the rear end of the slide rod and is threadedly connected to the slide rod.

[0007] Furthermore, a screw fixing seat is provided in the spindle box, and the screw passes through the screw fixing seat and is rotatably connected to the screw fixing seat.

[0008] Furthermore, a guide groove is provided on the outer cylindrical surface of the slide rod, and a guide flat key cooperating with the guide groove is provided in the spindle box.

[0009] Furthermore, a mounting seat is provided at the rear end of the slide rod, and a hydraulic cylinder for driving the rotating shaft to rotate is provided on the mounting seat. The cylinder body end of the hydraulic cylinder is fixed on the mounting seat, and the piston rod end of the hydraulic cylinder is movably connected to the outer cylindrical surface at the rear end of the rotating shaft.

[0010] Furthermore, a material stopping block is provided on the inner side of the material stopping bracket.

[0011] The beneficial effects of the utility model are:

[0012] 1. The utility model includes a sliding rod which is arranged in a main spindle box and slides in the main spindle box, a rotating shaft which is arranged in the sliding rod and rotates in the sliding rod, a material stop bracket which cooperates with the end of a long-axis thin-walled part, and a length sizing device which is installed on the main spindle box. The length direction is adjusted by the forward and backward movement of the sliding rod, and the diameter size is mainly adjusted by rotating the rotating shaft. After the sliding rod moves forward and backward into place, the forward and backward positions are fixed. When the long-axis thin-walled part is installed, the rotating shaft rotates, and the end of the material stop bracket contacts the end of the long-axis thin-walled part, thereby realizing the length fixing of the end of the long-axis thin-walled part, adapting to thin-walled parts with different diameters of the parts, and well solving the problem of workpiece diameter adaptability. The tooling can be installed on the upper side of the lathe spindle, effectively avoiding the machine tool processing space, and avoiding the risk of interference with the machine tool slide, slide plate and tool holder. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 This is a schematic diagram of the working state structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the utility model;

[0016] Figure 3 It is a cross-sectional view of the utility model.

[0017] In the figure: spindle box 1, slide rod 2, rotating shaft 3, material stop bracket 4, lead screw 5, lead screw fixing seat 6, guide groove 7, guide flat key 8, mounting seat 9, hydraulic cylinder 10, material stop block 11. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0019] like Figure 1 and Figure 3As shown, a length-sizing device for long-axis thin-walled parts for CNC machine tools includes a slide bar 2 arranged in a spindle box 1 and sliding in the spindle box 1, a rotating shaft 3 arranged in the slide bar 2 and rotating in the slide bar 2, a material stop bracket 4 cooperating with the end of the long-axis thin-walled parts is provided at the front end of the rotating shaft 3, and the material stop bracket 4 is connected to the front end of the rotating shaft 3 through a swing arm.

[0020] The length sizing device is installed on the spindle box 1, and the length direction is adjusted by the forward and backward movement of the slide bar 2, and the diameter size is mainly adjusted by the rotation of the rotating shaft 3. After the slide bar 2 moves forward and backward into place, the front and rear positions are fixed. When installing long-axis thin-walled parts, the rotating shaft 3 rotates, and the end of the material blocking bracket 4 contacts the end of the long-axis thin-walled parts, thereby realizing the fixed length of the end of the long-axis thin-walled parts, adapting to thin-walled parts of different diameters, and well solving the problem of workpiece diameter adaptability. This tooling can be installed on the upper side of the lathe spindle, effectively avoiding the machine tool processing space and avoiding the risk of interference with the machine tool slide, slide plate and tool holder. The axial movement of the sizing device body is guaranteed by the guide flat key fixed to the machine tool spindle box shell to ensure the linear motion accuracy.

[0021] like Figure 2 As shown, the rear end of the spindle box 1 is provided with a screw 5 rotating in the spindle box 1, the screw 5 passes through the rear end of the slide bar 2 and is threadedly connected to the slide bar 2, and the slide bar 2 is driven to move in the length direction by rotating the screw to adjust, and the rear end of the screw 5 is a hexagonal prism structure, so that it is convenient to rotate the screw. The spindle box 1 is provided with a through hole, and the slide bar 2 passes through the through hole and slides in the through hole.

[0022] like Figure 2 As shown, a screw fixing seat 6 is provided in the spindle box 1 , and the screw 5 passes through the screw fixing seat 6 and is rotatably connected to the screw fixing seat 6 .

[0023] like Figure 1 As shown, the outer cylindrical surface of the slide bar 2 is provided with a guide groove 7, and the spindle box 1 is provided with a guide flat key 8 that matches the guide groove 7. The length is guided by the guide flat key installed on the spindle box to adjust the stroke of the lead screw, that is, the stroke of the slide bar.

[0024] like Figure 2 As shown, the rear end of the slide bar 2 is provided with a mounting seat 9, and the mounting seat 9 is provided with a hydraulic cylinder 10 for driving the rotating shaft 3 to rotate. The cylinder end of the hydraulic cylinder 10 is fixed on the mounting seat 9, and the piston rod end of the hydraulic cylinder 10 is movably connected with the outer cylindrical surface of the rear end of the rotating shaft 3. A swing rod is provided at the rear end of the rotating shaft 3, and a long hole is provided on the swing rod. A roller matching the long hole is provided at the piston rod end of the hydraulic cylinder 10. When the piston rod of the hydraulic cylinder 10 is extended and retracted, the rotating shaft 3 rotates under the action of the roller and the long hole. The rotating shaft 3 and the slide bar 2 are rotatably connected through a bearing.

[0025] like Figure 2As shown, a material blocking block 11 is provided inside the material blocking bracket 4 to prevent the positioning accuracy from being affected due to wear of the material blocking bracket 4 .

[0026] In the description of the present invention, it should be noted that the terms "left", "right", "up", "down", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection, it can be a direct connection, it can be an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A length-sizing device for long-axis thin-walled parts for CNC machine tools, characterized in that: The invention comprises a slide bar (2) which is arranged in a main spindle box (1) and slides in the main spindle box (1), and a rotating shaft (3) which is arranged in the slide bar (2) and rotates in the slide bar (2). The front end of the rotating shaft (3) is provided with a material stop bracket (4) which cooperates with the end of a long-axis thin-walled part.

2. A length-sizing device for long-axis thin-walled parts for CNC machine tools as claimed in claim 1, characterized in that: The rear end of the spindle box (1) is provided with a lead screw (5) which rotates in the spindle box (1); the lead screw (5) passes through the rear end of the slide rod (2) and is threadedly connected to the slide rod (2).

3. A length-sizing device for long-axis thin-walled parts for CNC machine tools as claimed in claim 2, characterized in that: A screw fixing seat (6) is provided in the spindle box (1), and the screw (5) passes through the screw fixing seat (6) and is rotatably connected to the screw fixing seat (6).

4. A length-sizing device for long-axis thin-walled parts for CNC machine tools as claimed in claim 2, characterized in that: The outer cylindrical surface of the slide rod (2) is provided with a guide groove (7), and the spindle box (1) is provided with a guide flat key (8) that matches the guide groove (7).

5. The length-sizing device for long-axis thin-walled parts for CNC machine tools according to claim 1, characterized in that: A mounting seat (9) is provided at the rear end of the slide rod (2), and a hydraulic cylinder (10) for driving the rotating shaft (3) to rotate is provided on the mounting seat (9). The cylinder body end of the hydraulic cylinder (10) is fixed on the mounting seat (9), and the piston rod end of the hydraulic cylinder (10) is movably connected to the outer cylindrical surface at the rear end of the rotating shaft (3).

6. The length-sizing device for long-axis thin-walled parts for CNC machine tools according to claim 1, characterized in that: A material blocking block (11) is provided inside the material blocking bracket (4).

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