Feeding mechanism for numerical control lathe

Abstract

The feeding mechanism comprises a base component, a plurality of guide mechanisms are arranged on the upper surface of the base component, a tubular workpiece is placed between every two adjacent guide mechanisms, and each guide mechanism comprises two vertical rails vertically located on the front side and the rear side of the tubular workpiece. Two guide rollers for guiding a tubular workpiece are symmetrically arranged on the inner sides of the vertical rails, a rotating component is arranged between the guide rollers and the vertical rails, a driving component for driving the two vertical rails to move synchronously is arranged at the top of the base component, and a mounting frame is arranged on the outer sides of the guide rollers; the guide mechanism, the tubular workpiece and the base component are combined, so that the friction resistance between the guide mechanism and the tubular workpiece can be reduced, the guide space among the four guide rollers can be adjusted according to the diameter of the tubular workpiece, the guide feeding range of the tubular workpiece is expanded, and the feeding machining convenience of the tubular workpiece is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of numerically controlled lathes, and in particular relates to a feeding mechanism for numerically controlled lathes. Background Art

[0002] CNC lathe is one of the most widely used CNC machine tools. It is mainly used for cutting and processing of inner and outer cylindrical surfaces of shaft parts or disk parts, inner and outer conical surfaces of arbitrary cone angles, complex rotating inner and outer curved surfaces, and cylindrical and conical threads, and can perform grooving, drilling, reaming, reaming and boring, etc. When a CNC lathe processes tubular workpieces, a feeding device is used. For example, the automatic feeding device of a CNC lathe with the announcement number CN220516159U drives the threaded rod to rotate through a driving motor. The threaded rod can drive the slider to move while rotating, so that the push block can push the tubular material to move. During the movement of the tubular material, the tubular material slides in contact with the ball bearings on the surface of the feeding trough, which is conducive to reducing friction, thereby solving the problem that the existing device fixes the two sides of the tubular material by friction during the processing and feeding of the tubular material, thereby causing friction with the tubular material during the fixing process, and then causing scratches on the material surface.

[0003] Although the above patent reduces the friction on the surface of the tubular workpiece, the curvature of the arc plate guiding the tubular workpiece is fixed, which is not convenient for adapting to tubular workpieces of different diameters. The guiding feeding of the tubular workpiece is limited. For this reason, we propose a feeding mechanism for a CNC lathe. Utility Model Content

[0004] The utility model aims to provide a feeding mechanism for a numerically controlled lathe, so as to solve the problem inconvenient to guide and feed tubular workpieces with different diameters proposed in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a feeding mechanism for a CNC lathe, comprising a base member, a plurality of guide mechanisms are arranged on the upper surface of the base member, a tubular workpiece is placed between two adjacent guide mechanisms, the guide mechanism comprises two vertical rails vertically located at the front and rear sides of the tubular workpiece, two guide rollers for guiding the tubular workpiece are symmetrically arranged on the inner side of the vertical rails, a rotating member is arranged between the guide rollers and the vertical rails, a driving member for driving the two vertical rails to move synchronously is arranged on the top of the base member, and a mounting frame is arranged on the outer side of the guide rollers;

[0006] The rotating member comprises a guide sleeve which is slidably mounted on the vertical rail, the outer side of the mounting frame is rotatably connected to the guide sleeve, and a limit ring and a fixed slide rod are arranged between the two;

[0007] The driving component comprises a bidirectional screw threadedly penetrating the lower ends of the two vertical rails, and a driving motor is arranged at the front end of the vertical rail.

[0008] Preferably, the rotating member comprises a fixing lug fixed vertically on the inner side of the guide sleeve, a rotating plate is provided on the outer surface of the mounting frame, and an arc-shaped hole is formed on the surface of the fixing lug.

[0009] Preferably, a fixed slide rod movably passing through the arc-shaped hole is provided at the outer end of the rotating plate, and the limiting ring is screwed onto the outer end of the fixed slide rod and contacts the surface of the fixed lug.

[0010] Preferably, the driving component further comprises a mounting groove provided on the surface of the base component, the inner wall of the mounting groove is provided with a limiting plate penetrating the vertical rail, and a stabilizing seat for supporting the bidirectional screw is provided in the mounting groove.

[0011] Preferably, the base component includes a bottom plate, two fixed guide rails are arranged on the upper surface of the base component, a sliding seat is slidably arranged above the bottom plate, a clamping rod is vertically and screwed on the surface of the sliding seat, and a guide groove is opened on the lower surface of the sliding seat for the fixed guide rail to pass through.

[0012] Preferably, a limiting bolt is screwed between the vertical rail and the guide sleeve.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] (1) The utility model combines the guide mechanism, the tubular workpiece and the base component, which can not only reduce the friction resistance between the tubular workpiece and the base component, but also adjust the guide space between the four guide rollers according to the diameter of the tubular workpiece, thereby expanding the guiding feeding range of the tubular workpiece and increasing the convenience of the tubular workpiece feeding processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the feeding mechanism of the CNC lathe of the utility model;

[0016] Figure 2 For this utility model Figure 1 Structural diagram of the middle guide mechanism;

[0017] Figure 3 For this utility model Figure 2 A schematic diagram of the top view of the rotating member;

[0018] Figure 4 For this utility model Figure 2 A schematic diagram of the structure of the driving component;

[0019] Figure 5 For this utility model Figure 1 Exploded view of the middle base component;

[0020] In the figure: 100, base member; 101, bottom plate; 102, sliding seat; 103, guide slide groove; 104, fixed guide rail; 105, clamping rod; 200, guide mechanism; 201, vertical rail; 202, driving member; 2021, bidirectional screw; 2022, stabilizing seat; 2023, driving motor; 2024, limiting plate; 2025, mounting groove; 203, guide roller; 204, rotating member; 2041, rotating plate; 2042, guide sleeve; 2043, limiting bolt; 2044, fixing lug; 2045, limiting ring; 2046, fixed slide rod; 205, mounting frame; 300, tubular workpiece. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1

[0023] See also Figure 1 - Figure 4 The utility model provides a technical solution: a feeding mechanism for a CNC lathe, comprising a base member 100, a plurality of guide mechanisms 200 are arranged on the upper surface of the base member 100, the guide mechanism 200 can reduce the friction resistance between the base member 100 and the tubular workpiece 300, and the guide space between the four guide rollers 203 can be adjusted according to the diameter of the tubular workpiece 300, so as to expand the guiding feeding range of the tubular workpiece 300 and increase the convenience of feeding processing of the tubular workpiece 300, a tubular workpiece 300 is placed between two adjacent guide mechanisms 200, and the guide mechanism 200 includes two vertical rails 201 vertically located at the front and rear sides of the tubular workpiece 300 Two guide rollers 203 for guiding the tubular workpiece 300 are symmetrically arranged on the inner side of the vertical rail 201, and four guide rollers 203 are evenly distributed around the tubular workpiece 300 in the front-to-back direction, so as to facilitate the guiding of the tubular workpiece 300. A rotating member 204 is arranged between the guide roller 203 and the vertical rail 201, and the rotating member 204 can adjust the angle of the guide roller 203 in the vertical direction. A driving member 202 for driving the two vertical rails 201 to move synchronously is arranged on the top of the base member 100, and a mounting frame 205 is arranged on the outer side of the guide roller 203, and the mounting frame 205 is U-shaped, which does not affect the contact between the circumferential surface of the guide roller 203 and the surface of the tubular workpiece 300;

[0024] The rotating member 204 includes a guide sleeve 2042 which is slidably mounted on the vertical rail 201. The rotating member 204 is provided to facilitate changing the angle of the guide roller 203 in the vertical direction. The vertical rail 201 is in an I-shape when viewed from above. The outer side of the mounting frame 205 is rotatably connected to the guide sleeve 2042, and a limit ring 2045 and a fixed slide rod 2046 are provided between the two.

[0025] The driving component 202 includes a bidirectional screw rod 2021 threadedly penetrating the lower ends of the two vertical rails 201 . The vertical rails 201 are combined with the bidirectional screw rod 2021 to facilitate adjustment of the distance between the two vertical rails 201 . A driving motor 2023 is disposed at the front end of the vertical rail 201 .

[0026] In this embodiment, preferably, the rotating member 204 includes a fixed lug 2044 vertically fixed on the inner side of the guide sleeve 2042, and a rotating plate 2041 is provided on the outer surface of the mounting frame 205, and screws are provided between the two to facilitate subsequent disassembly and assembly, and a rotating shaft is provided between the rotating plate 2041 and the fixed lug 2044, and an arc-shaped hole is opened on the surface of the fixed lug 2044, and the curvature of the arc-shaped hole is the same as the rotation curvature of the rotating plate 2041.

[0027] In this embodiment, preferably, a fixed slide rod 2046 that is movable and passes through an arc-shaped hole is provided at the outer end of the rotating plate 2041. The fixed slide rod 2046 can rotate along with the rotating plate 2041. The limiting ring 2045 is screwed onto the outer end of the fixed slide rod 2046 and contacts the surface of the fixed lug 2044. The friction resistance between the limiting ring 2045 and the fixed lug 2044 can be used to limit and fix the positions of the rotating plate 2041 and the fixed slide rod 2046.

[0028] In this embodiment, preferably, the driving component 202 also includes a mounting groove 2025 opened on the surface of the base component 100, and the inner wall of the mounting groove 2025 is provided with a limit plate 2024 that passes through the vertical rail 201, and the limit plate 2024 does not affect the movement of the vertical rail 201, and can guide and limit the vertical rail 201, and a stable seat 2022 is provided in the mounting groove 2025 for supporting the bidirectional screw 2021, which supports the bidirectional screw 2021 without affecting its rotation.

[0029] In summary, according to the diameter of the tubular workpiece 300 to be fed, the driving motor 2023 can be operated to drive the bidirectional screw 2021 to rotate, and the two vertical rails 201 threadedly connected thereto move back and forth or relatively with the rotation. When the distance between the two is appropriate, the guide sleeve 2042 is moved along the vertical rail 201 to change the distance between the two guide rollers 203 on the same side. When the distance is appropriate, the limit bolt 2043 is rotated to limit and fix the position of the guide sleeve 2042, and at the same time, The rotating plate 2041 rotates around the rotating shaft, driving the fixed slide rod 2046 to slide in the arc hole. When the angle between the guide roller 203 and the vertical direction is appropriate, the limiting ring 2045 is tightened to make it contact with the surface of the fixed lug 2044, and the position of the rotating plate 2041 and the guide roller 203 is limited and fixed, so that a suitable space for guiding the feeding of the tubular workpiece 300 is left in the middle of the four guide rollers 203, which is suitable for tubular workpieces 300 of different diameters and increases the convenience of feeding the tubular workpiece 300.

[0030] Example 2

[0031] Reference Figure 5 , which is the second embodiment of the utility model, and this embodiment is different from the previous embodiment.

[0032] In the present embodiment, preferably, the base member 100 includes a bottom plate 101. The adjustability of the length of the base member 100 is utilized to facilitate changing the length of adjacent tubular workpieces 300, so as to facilitate adapting to tubular workpieces 300 of different lengths. Two fixed guide rails 104 are arranged on the upper surface of the base member 100, and a sliding seat 102 is slidably arranged above the bottom plate 101. A clamping rod 105 is vertically and screwedly arranged on the surface of the sliding seat 102. The clamping rod 105 is threadedly connected to the sliding seat 102. The inner end of the clamping rod 105 contacts the fixed guide rail 104 to limit and fix the sliding seat 102. A guide groove 103 is provided on the lower surface of the sliding seat 102 for the fixed guide rail 104 to pass through.

[0033] In this embodiment, preferably, a limit bolt 2043 is screwed between the vertical rail 201 and the guide sleeve 2042 , the limit bolt 2043 is threadedly connected to the guide sleeve 2042 , and the limit bolt 2043 limits and fixes the position of the vertical rail 201 .

[0034] In summary, when the position of the sliding seat 102 needs to be changed, loosen the clamping rod 105 to disengage its inner end from the fixed guide rail 104, allow the sliding seat 102 to move along the fixed guide rail 104, adjust the distance between the two sliding seats 102 and the guide mechanism 200, and when the position is appropriate, tighten the clamping rod 105 to make its inner end contact with the fixed guide rail 104 to fix the position of the sliding seat 102, thereby allowing the two adjacent guide mechanisms 200 to be located in a suitable position to support the tubular workpiece 300.

[0035] 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 feeding mechanism for a CNC lathe, comprising a base member (100), characterized in that: A plurality of guide mechanisms (200) are arranged on the upper surface of the base member (100), a tubular workpiece (300) is placed between two adjacent guide mechanisms (200), the guide mechanism (200) comprises two vertical rails (201) vertically located at the front and rear sides of the tubular workpiece (300), two guide rollers (203) for guiding the tubular workpiece (300) are symmetrically arranged on the inner side of the vertical rails (201), a rotating member (204) is arranged between the guide rollers (203) and the vertical rails (201), a driving member (202) for driving the two vertical rails (201) to move synchronously is arranged on the top of the base member (100), and a mounting frame (205) is arranged on the outer side of the guide rollers (203); The rotating member (204) comprises a guide sleeve (2042) which is slidably mounted on the vertical rail (201); the outer side of the mounting frame (205) is rotatably connected to the guide sleeve (2042), and a limit ring (2045) and a fixed slide rod (2046) are arranged between the two. The driving component (202) comprises a bidirectional screw rod (2021) threadedly penetrating the lower ends of the two vertical rails (201), and a driving motor (2023) is disposed at the front end of the vertical rail (201).

2. A feeding mechanism for a CNC lathe according to claim 1, characterized in that: The rotating member (204) comprises a fixing lug (2044) fixed vertically on the inner side of the guide sleeve (2042); a rotating plate (2041) is arranged on the outer surface of the mounting frame (205); and an arc-shaped hole is provided on the surface of the fixing lug (2044).

3. A feeding mechanism for a CNC lathe according to claim 2, characterized in that: The outer end of the rotating plate (2041) is provided with a fixed slide rod (2046) that movably passes through the arc-shaped hole, and the limiting ring (2045) is screwed and sleeved on the outer end of the fixed slide rod (2046) and contacts the surface of the fixed lug (2044).

4. A feeding mechanism for a CNC lathe according to claim 1, characterized in that: The driving component (202) further comprises a mounting groove (2025) provided on the surface of the base component (100); a limiting plate (2024) penetrating the vertical rail (201) is provided on the inner wall of the mounting groove (2025); and a stabilizing seat (2022) supporting the bidirectional screw rod (2021) is provided in the mounting groove (2025).

5. The feeding mechanism for a CNC lathe according to claim 1, characterized in that: The base component (100) comprises a bottom plate (101), the upper surface of the base component (100) is provided with two fixed guide rails (104), a sliding seat (102) is slidably arranged above the bottom plate (101), a pressing rod (105) is vertically and screwedly arranged on the surface of the sliding seat (102), and a guide slot (103) for the fixed guide rail (104) to pass through is opened on the lower surface of the sliding seat (102).

6. The feeding mechanism for a CNC lathe according to claim 1, characterized in that: A limit bolt (2043) is screwed together between the vertical rail (201) and the guide sleeve (2042).

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