A convenient loading and unloading mechanism for CNC lathes

By combining the servo module and the top-loading assembly, the problem of difficult clamping of cylindrical workpieces in the loading and unloading structure of CNC lathes is solved, and stable clamping and rapid loading and unloading of workpieces are achieved.

CN224424294UActive Publication Date: 2026-06-30WUHAN SHENGJINGXIN MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN SHENGJINGXIN MASCH CO LTD
Filing Date
2025-08-03
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The existing loading and unloading structure of CNC lathes cannot quickly and effectively load cylindrical workpieces into the chuck, resulting in limitations in its use.

Method used

The system employs a first servo module, a second servo module, a third servo module, an ejector assembly, and a clamping assembly. Through the combination of the lead screw and electric telescopic rod of the servo module, the lateral and vertical displacement and clamping adjustment of the workpiece are realized, and the ejector assembly pushes the workpiece into the chuck.

Benefits of technology

It enables stable clamping and flexible movement of cylindrical workpieces, improves the convenience and efficiency of loading and unloading, and ensures the stable fixation and rapid loading and unloading of workpieces in CNC lathes.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This utility model discloses a convenient loading and unloading mechanism for CNC lathes, relating to the field of CNC lathe technology. It includes a first servo module, a second servo module, a third servo module, a top-loading assembly, and a clamping assembly. The rear end of the clamping assembly is equipped with a third servo module for adjusting the clamping position. A top-loading assembly for pushing cylindrical workpieces is mounted on the outer wall of the third servo module. The rear end of the third servo module is equipped with a second servo module for adjusting its height. Below the second servo module is a first servo module for adjusting the lateral position. The third servo module includes forward and reverse lead screws symmetrically mounted internally. This invention solves the problem that existing CNC lathe loading and unloading structures cannot quickly and specifically load cylindrical workpieces into the chuck of the CNC lathe, thus limiting their use on CNC lathes.
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Description

Technical Field

[0001] This utility model relates to the field of CNC lathe technology, specifically to a convenient loading and unloading mechanism for CNC lathes. Background Technology

[0002] CNC lathes are among the most widely used CNC machine tools. They are mainly used for cutting and machining the inner and outer cylindrical surfaces, inner and outer conical surfaces with arbitrary cone angles, complex rotating inner and outer curved surfaces, and cylindrical and conical threads of shaft or disc parts. They can also perform grooving, drilling, reaming, boring, and other machining operations.

[0003] For example, announcement number CN218744879U, entitled "An Auxiliary Loading and Unloading Structure for a Direct-Push CNC Lathe," describes a direct-push CNC lathe body used for workpiece machining. One end of the inner wall of the direct-push CNC lathe body is rotatably equipped with a first positioning shaft, a fixed frame is fixed to one side of the first positioning shaft, and a second positioning shaft is fixed to one end of the fixed frame. This invention utilizes a motor whose output end, fixed to the inner wall of the direct-push CNC lathe body, passes through the first positioning shaft to drive a positioning disc to rotate. This causes the moving frame to move the workpiece, facilitating machining of the workpiece at one end of the moving frame. After machining, the rotation of the positioning disc moves the workpiece outward, facilitating continuous loading and unloading of the direct-push CNC lathe, reducing waiting time, increasing the usability of the direct-push CNC lathe body, and improving its efficiency.

[0004] The existing loading and unloading structure of CNC lathes cannot quickly load cylindrical workpieces into the chuck of the CNC lathe, which limits its use in CNC lathes. Therefore, it does not meet the current needs, and a convenient loading and unloading mechanism for CNC lathes is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a convenient loading and unloading mechanism for CNC lathes, so as to solve the problem mentioned in the background art that the existing loading and unloading structure of CNC lathes cannot be used to quickly load cylindrical workpieces into the chuck of CNC lathes, resulting in limitations in its use on CNC lathes.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a convenient loading and unloading mechanism for a CNC lathe, comprising: a first servo module, a second servo module, a third servo module, a top-loading assembly, and a clamping assembly. The rear end of the clamping assembly is equipped with a third servo module for adjusting the clamping position. The outer wall of the third servo module is equipped with a top-loading assembly for pushing cylindrical workpieces. The rear end of the third servo module is equipped with a second servo module for adjusting its height. Below the second servo module is a first servo module for adjusting the lateral position.

[0007] Preferably, the third servo module includes a forward lead screw and a reverse lead screw symmetrically installed on the left and right sides inside. A third lead screw slider is installed on the outer wall of both the forward lead screw and the reverse lead screw. A third lead screw motor is installed at one end of the third servo module.

[0008] Preferably, the clamping assembly includes an assembly frame mounted on the outer wall of the third lead screw slider, a second electric telescopic rod is mounted above the assembly frame, and an upper clamping plate is mounted on the telescopic end of the second electric telescopic rod.

[0009] Preferably, both the upper clamping plate and the outer wall of the assembly frame are provided with grooves for placing cylindrical workpieces, and the inner wall of the grooves is provided with arc-shaped rubber pads.

[0010] Preferably, the top material assembly includes a second L-shaped assembly plate, a first electric telescopic rod is installed on the outer wall of the second L-shaped assembly plate, and a push block is installed on the telescopic end of the first electric telescopic rod.

[0011] Preferably, the second servo module includes a second ball screw, a second screw motor is mounted on the upper end of the second ball screw, a second screw slider is mounted on the outer wall of the second ball screw, and a first L-shaped assembly plate is mounted on the outer wall of the second screw slider. The first L-shaped assembly plate is combined with the third servo module by bolts.

[0012] Preferably, the first servo module includes a first ball screw, a first screw motor is installed at one end of the first ball screw, a first screw slider is installed on the outer wall of the first ball screw, and the second servo module is installed on the first screw slider by bolts.

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

[0014] (1) In this utility model, the third lead screw motor drives the third lead screw slider to move on the forward lead screw and the reverse lead screw. During the movement, the position of the two sliders can be adjusted so that the clamping components installed on the sliders can move away from or close to each other. This is used to achieve the effect of adjusting the clamping position according to the length of the cylindrical workpiece. When clamping, the cylindrical workpiece is placed through the groove at the bottom of the assembly frame, and then the upper clamping plate is moved downward by the second electric telescopic rod so that the upper clamping plate is pressed and restricted above the cylindrical workpiece, thereby firmly fixing the cylindrical workpiece and ensuring that the workpiece moves more stably during loading and unloading.

[0015] (2) In this utility model, the first lead screw motor and the first ball screw can drive the clamping part to move laterally. The second lead screw motor and the second ball screw are used to drive the clamping part to move vertically and adjust its height. The above structure can improve the flexibility of the clamping part and facilitate the clamping and driving of the cylindrical workpiece to adjust the lateral and vertical displacement, which provides convenience for the loading and unloading process. After the cylindrical workpiece is clamped and moved to the position of the CNC lathe chuck, the push block can be extended forward by the first electric telescopic rod to push the cylindrical workpiece into the center of the chuck, so that the chuck can clamp and fix the cylindrical workpiece. When unloading, the clamping assembly is moved to the chuck, the chuck releases the cylindrical workpiece and makes it fall into the groove. Then, the cylindrical workpiece is moved to the unloading area by moving. The top coating assembly pushes the workpiece forward again to push the processed cylindrical workpiece down, thus achieving the unloading effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the first servo module structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the second servo module structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the third servo module and the top-feed assembly of this utility model;

[0020] Figure 5 This is a schematic diagram of the clamping component structure of this utility model;

[0021] In the diagram: 1. First servo module; 101. First ball screw; 102. First screw motor; 103. First screw slider; 2. Second servo module; 201. Second ball screw; 202. Second screw motor; 203. Second screw slider; 204. First L-shaped assembly plate; 3. Third servo module; 301. Forward screw; 302. Reverse screw; 303. Third screw motor; 304. Third screw slider; 4. Ejector assembly; 401. Second L-shaped assembly plate; 402. First electric telescopic rod; 403. Push block; 5. Clamping assembly; 501. Assembly frame; 502. Groove; 503. Second electric telescopic rod; 504. Upper clamping plate; 505. Arc-shaped rubber pad. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1 , Figure 4 , Figure 5 This utility model provides an embodiment of a convenient loading and unloading mechanism for a CNC lathe, comprising: a first servo module 1, a second servo module 2, a third servo module 3, a top-loading assembly 4, and a clamping assembly 5. The rear end of the clamping assembly 5 is equipped with the third servo module 3 for adjusting the clamping position. The outer wall of the third servo module 3 is equipped with the top-loading assembly 4 for pushing cylindrical workpieces. The rear end of the third servo module 3 is equipped with the second servo module 2 for adjusting its height. Below the second servo module 2 is a component for adjusting the lateral movement. The first servo module 1 and the third servo module 3 include a forward lead screw 301 and a reverse lead screw 302 symmetrically installed on the left and right sides inside. A third lead screw slider 304 is installed on the outer wall of both the forward lead screw 301 and the reverse lead screw 302. A third lead screw motor 303 is installed at one end of the third servo module 3. The clamping assembly 5 includes an assembly frame 501 installed on the outer wall of the third lead screw slider 304. A second electric telescopic rod 503 is installed above the assembly frame 501. An upper clamping plate 504 is installed at the telescopic end of the second electric telescopic rod 503.

[0024] The third lead screw motor 303 drives the third lead screw slider 304 to move on the forward lead screw 301 and the reverse lead screw 302. During the movement, the position of the two sliders can be adjusted so that the clamping components 5 installed on the sliders can move away from or closer to each other. This is used to achieve the effect of adjusting the clamping position according to the length of the cylindrical workpiece. When clamping, the cylindrical workpiece is placed through the groove 502 at the bottom of the assembly frame 501. Then, the second electric telescopic rod 503 drives the upper clamping plate 504 to move downward, so that the upper clamping plate 504 presses and restricts the cylindrical workpiece above it, thereby firmly fixing the cylindrical workpiece and ensuring more stable workpiece movement during loading and unloading.

[0025] In addition, grooves 502 for placing cylindrical workpieces are provided on the outer walls of the upper clamping plate 504 and the assembly frame 501. An arc-shaped rubber pad 505 is provided on the inner wall of the groove 502. The arc-shaped rubber pad 505 can improve the friction between it and the cylindrical workpiece, making it more slip-resistant and preventing the cylindrical workpiece from shifting.

[0026] Please see Figure 4The top-loading assembly 4 includes a second L-shaped assembly plate 401. A first electric telescopic rod 402 is installed on the outer wall of the second L-shaped assembly plate 401. A push block 403 is installed at the telescopic end of the first electric telescopic rod 402. After the cylindrical workpiece is clamped and moved to the position of the CNC lathe chuck, the push block 403 can be extended forward by the first electric telescopic rod 402 to push the cylindrical workpiece into the center of the chuck, so that the chuck can clamp and fix the cylindrical workpiece. When unloading, the clamping assembly 5 is moved to the chuck, the chuck releases the cylindrical workpiece, and it falls into the groove 502. Then, the cylindrical workpiece is moved to the unloading area by moving, and the top-loading assembly 4 pushes forward again to unload the processed cylindrical workpiece, thus achieving the unloading effect.

[0027] Please see Figure 2 , Figure 3 The second servo module 2 includes a second ball screw 201, a second screw motor 202 is mounted on the upper end of the second ball screw 201, a second screw slider 203 is mounted on the outer wall of the second ball screw 201, and a first L-shaped mounting plate 204 is mounted on the outer wall of the second screw slider 203. The first L-shaped mounting plate 204 is combined with the third servo module 3 by bolts. The first servo module 1 includes a first ball screw 101, a first screw motor 102 is mounted on one end of the first ball screw 101, and a first screw slider 103 is mounted on the outer wall of the first ball screw 101. The second servo module 2 is mounted on the first screw slider 103 by bolts.

[0028] The first lead screw motor 102 and the first ball screw 101 enable the clamping component to move laterally. The second lead screw motor 202 and the second ball screw 201 enable the clamping component to move vertically, thereby adjusting its height. This structure improves the flexibility of the clamping component, facilitates the clamping and adjustment of cylindrical workpieces in terms of lateral and vertical displacement, and provides convenience for the loading and unloading process.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A convenient feeding and discharging mechanism of a numerical control lathe, comprising a first servo module (1), a second servo module (2), a third servo module (3), a material ejecting assembly (4) and a clamping assembly (5), characterized in that: The clamping assembly (5) is equipped with a third servo module (3) for adjusting the clamping position at its rear end. The outer wall of the third servo module (3) is equipped with a top-loading assembly (4) for pushing the cylindrical workpiece. The rear end of the third servo module (3) is equipped with a second servo module (2) for adjusting its height. The lower part of the second servo module (2) is equipped with a first servo module (1) for adjusting the lateral position.

2. The convenient loading and unloading mechanism for a CNC lathe according to claim 1, characterized in that: The third servo module (3) includes a forward lead screw (301) and a reverse lead screw (302) symmetrically installed on the left and right sides inside. A third lead screw slider (304) is installed on the outer wall of both the forward lead screw (301) and the reverse lead screw (302). A third lead screw motor (303) is installed at one end of the third servo module (3).

3. The convenient loading and unloading mechanism for a CNC lathe according to claim 2, characterized in that: The clamping assembly (5) includes an assembly frame (501) mounted on the outer wall of the third lead screw slider (304), and a second electric telescopic rod (503) is mounted above the assembly frame (501). An upper clamping plate (504) is mounted on the telescopic end of the second electric telescopic rod (503).

4. The convenient loading and unloading mechanism for a CNC lathe according to claim 3, characterized in that: The upper clamping plate (504) and the assembly frame (501) are both provided with grooves (502) for placing cylindrical workpieces on their outer walls, and an arc-shaped rubber pad (505) is provided on the inner wall of the groove (502).

5. The convenient loading and unloading mechanism for a CNC lathe according to claim 1, characterized in that: The top material assembly (4) includes a second L-shaped assembly plate (401), on the outer wall of the second L-shaped assembly plate (401) a first electric telescopic rod (402) is installed, and a push block (403) is installed at the telescopic end of the first electric telescopic rod (402).

6. The convenient loading and unloading mechanism for a CNC lathe according to claim 1, characterized in that: The second servo module (2) includes a second ball screw (201), a second screw motor (202) is installed at the upper end of the second ball screw (201), a second screw slider (203) is installed on the outer wall of the second ball screw (201), a first L-shaped assembly plate (204) is installed on the outer wall of the second screw slider (203), and the first L-shaped assembly plate (204) is combined with the third servo module (3) by bolts.

7. A convenient loading and unloading mechanism for a CNC lathe according to claim 1, characterized in that: The first servo module (1) includes a first ball screw (101), a first screw motor (102) is installed at one end of the first ball screw (101), a first screw slider (103) is installed on the outer wall of the first ball screw (101), and the second servo module (2) is installed on the first screw slider (103) by bolts.