Numerically controlled lathe bed

By setting up a movable cavity and threaded rod connection inside the CNC lathe bed, the bed can be extended and stored, solving the problem of space limitation caused by the fixed length of the bed and improving the applicability and flexibility of the machine tool.

CN224543780UActive Publication Date: 2026-07-24JINGQIANG TOOLS (XIAN) CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINGQIANG TOOLS (XIAN) CO LTD
Filing Date
2025-09-02
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The fixed overall length of the bed of existing CNC lathes limits the use of the machine tools due to space constraints, resulting in low applicability.

Method used

A CNC lathe bed was designed. By setting up a movable cavity and threaded rod connection inside the bed, the bed can be extended and stored by using the cooperation of the dial wheel and the threaded rod, so as to ensure that the lathe body can adapt to different sizes of working space.

Benefits of technology

This improves the applicability of the lathe, enabling it to be used flexibly in spaces of different sizes, avoiding the separation of the lathe body, and enhancing the machine tool's applicability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224543780U_ABST
    Figure CN224543780U_ABST
Patent Text Reader

Abstract

The utility model discloses a numerical control lathe bed body relates to lathe field, including the bed body, the bottom of bed body is installed with the vertical rod, and the lower end portion fixed mounting of vertical rod has the bottom plate, the inside of bed body is expected to have movable cavity no.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of lathes, specifically to a CNC lathe bed. Background Technology

[0002] CNC lathes play a vital role in modern manufacturing. They are mainly controlled by computer programming to achieve high-precision machining of workpieces, greatly shortening the machining time. They are widely used in many industries such as aerospace, automobile manufacturing, mold processing, and medical devices.

[0003] The existing lathe beds still have the following problems when in use: the overall length of the existing bed is relatively fixed, which restricts the use of the machine tool due to the space available, resulting in a low overall applicability of the machine tool.

[0004] Therefore, it is necessary to invent a CNC lathe bed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a CNC lathe bed to solve the problem mentioned in the background art that the overall length of the existing bed is relatively fixed, which leads to the machine tool's use being limited by the available space, and thus results in the overall low applicability of the machine tool.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a CNC lathe bed, including a bed body, a vertical rod installed at the bottom of the bed body, and a base plate fixedly installed at the lower end of the vertical rod. The bed body has a pre-set movable cavity I, and an extended bed body is slidably installed inside the movable cavity I. A vertical plate is fixedly installed at the lower end of the extended bed body, and an extension block is fixedly installed at the lower end of the vertical plate. The extension block is slidably connected to a pre-set movable cavity II inside the base plate, and a roller is fixedly installed at the end of the extension block. The movable cavity I has a notch and an arc-shaped groove, and a dial wheel is rotatably installed inside the notch and arc-shaped groove. A threaded rod is fixedly inserted into the inner wall of the dial wheel. The threaded rod is threadedly connected to a threaded groove reserved inside the extended bed body, and the threaded rod is anti-detached from the threaded groove through an anti-detachment structure.

[0007] Preferably, the extended bed is provided in two parts, and the two extended bed parts are symmetrically arranged with reference to the central axis of the bed as the axis of symmetry. The outer wall of the extended bed is attached to the inner wall of the movable cavity to achieve a sliding connection, which facilitates the expansion and storage of the lathe body.

[0008] Preferably, the outer ring of the threaded rod is provided with two threads, the two threads having different directions, and the two threads with different directions are respectively threaded to the threaded grooves reserved inside the two symmetrically arranged extension beds. Furthermore, the two ends of the threaded rod are flush with the two openings of the movable cavity. Thus, the rotation of the threaded rod causes the two extension beds to expand or retract in different directions under the restriction of the movable cavity.

[0009] Preferably, the anti-detachment structure includes annular cavities pre-set at the left and right ends of the threaded rod, and annular blocks are rotatably installed inside the annular cavities. A square block fixedly connected to the outer wall of the annular block is connected to a square groove reserved inside the extended bed, ensuring the anti-detachment connection between the extended bed and the bed body.

[0010] Preferably, the two square blocks are arranged symmetrically on the outer wall of the annular block with reference to the central axis of the threaded rod as the axis of symmetry and are fixedly connected to the annular block. The outer wall of the square block is attached to the inner wall of the square groove to achieve a sliding connection. Both ends of the square groove are closed to ensure that the extension bed and the bed body are connected without being obstructed while the threaded rod rotates.

[0011] Preferably, there is a gap between the outer wall of the annular block and the inner wall of the threaded groove.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0013] 1. By rotating the dial wheel through the notch, the threaded rod is rotated, causing the two extended beds to expand or retract in different directions under the constraint of the movable cavity. This allows the lathe body to adapt to different sizes of working spaces, improving the applicability of the lathe body and making the lathe more flexible in use.

[0014] 2. When the threaded rod rotates and causes the extended bed to move, when the square slot moves and the end wall of the square slot abuts against the square block, the extended bed has no room to move. At this time, the extended bed and the moving cavity achieve an anti-detachment connection, avoiding separation of the lathe body. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a three-dimensional view of the overall structure of this utility model;

[0017] Figure 2This is an exploded view of the overall structure of this utility model;

[0018] Figure 3 This is an exploded view of the internal structure of the bed frame (partially cut out) of this utility model;

[0019] Figure 4 For the present utility model Figure 3 A magnified plan view of the structure at point A in the middle.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Bed frame; 2. Uprights; 3. Base plate; 4. Movable cavity one; 5. Extended bed; 6. Uprights; 7. Extended block; 8. Movable cavity two; 9. Notch; 10. Arc groove; 11. Dial wheel; 12. Threaded rod; 13. Threaded groove; 14. Anti-detachment structure; 141. Annular cavity; 142. Annular block; 143. Square block; 144. Square groove. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0023] This utility model provides, for example Figure 1-4 The CNC lathe bed shown includes a bed 1, a vertical rod 2 installed at the bottom of the bed 1, and a base plate 3 fixedly installed at the lower end of the vertical rod 2. The bed 1 has a pre-set movable cavity 4, and an extended bed 5 is slidably installed inside the movable cavity 4. A vertical plate 6 is fixedly installed at the lower end of the extended bed 5, and an extension block 7 is fixedly installed at the lower end of the vertical plate 6. The extension block 7 is slidably connected to the pre-set movable cavity 8 inside the base plate 3. A roller is fixedly installed at the end of the extension block 7. The movable cavity 4 has a notch 9 and an arc groove 10. A dial wheel 11 is rotatably installed inside the notch 9 and the arc groove 10. A threaded rod 12 is fixedly inserted into the inner wall of the dial wheel 11. The threaded rod 12 is threadedly connected to a threaded groove 13 reserved inside the extended bed 5. The threaded rod 12 is anti-detached from the threaded groove 13 through an anti-detachment structure 14.

[0024] By rotating the dial wheel 11 through the notch 9, the threaded rod 12 is rotated, causing the two extended bed 5s threadedly connected to the threaded rod 12 to expand or retract in different directions under the constraint of the movable cavity 4. This allows the lathe body to adapt to different sizes of working spaces. When the extended bed 5 moves, the extension block 7 moves synchronously to support the extended bed 5. This effectively improves the applicability of the lathe body, ensuring that the lathe body is suitable for different working spaces, thus making the lathe more flexible in use.

[0025] The outer ring of the threaded rod 12 has two threads with different directions. The two threads with different directions are threaded to the threaded grooves 13 reserved inside the two symmetrically arranged extension beds 5. The two ends of the threaded rod 12 are flush with the two openings of the movable cavity 4. There are two extension beds 5. The two extension beds 5 are symmetrically arranged with reference to the central axis of the bed 1. The outer wall of the extension bed 5 is attached to the inner wall of the movable cavity 4 to achieve a sliding connection, which facilitates the expansion and storage of the lathe body.

[0026] In this way, turning the dial wheel 11 drives the threaded rod 12, which is fixedly inserted with it, to rotate, causing the two extended bed panels 5 to expand or retract in different directions under the constraint of the movable cavity 4.

[0027] The anti-detachment structure 14 includes annular cavities 141 pre-set at the left and right ends of the threaded rod 12, and annular blocks 142 are rotatably installed inside the annular cavities 141. Two square blocks 143 are arranged symmetrically on the outer wall of the annular blocks 142 with reference to the central axis of the threaded rod 12 as the axis of symmetry and are fixedly connected to the annular blocks 142. The outer wall of the square blocks 143 is attached to the inner wall of the square groove 144 to achieve a sliding connection. Both ends of the square groove 144 are closed. The square blocks 143 fixedly connected to the outer wall of the annular blocks 142 are connected to the square groove 144 reserved inside the extended bed 5 to ensure the anti-detachment connection between the extended bed 5 and the bed 1.

[0028] There is a gap between the outer wall of the annular block 142 and the inner wall of the threaded groove 13.

[0029] When the threaded rod 12 rotates, causing the extended bed 5 to move, the square groove 144 and the square block 143 inside the moving extended bed 5 are in a sliding connection, allowing the extended bed 5 to move smoothly. When the square groove 144 moves and the end wall of the square groove 144 abuts against the square block 143, the extended bed 5 has no room to move. At this time, the extended bed 5 and the moving cavity 4 are connected to prevent separation, thus avoiding the separation of the lathe body.

[0030] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A CNC lathe bed, comprising a bed body (1), characterized in that, The bottom of the bed frame (1) is equipped with a support rod (2), and a base plate (3) is fixedly installed at the lower end of the support rod (2). The bed frame (1) has a pre-set movable cavity (4), and an extended bed frame (5) is slidably installed inside the movable cavity (4). A support plate (6) is fixedly installed at the lower end of the extended bed frame (5), and an extension block (7) is fixedly installed at the lower end of the support plate (6). The extension block (7) is slidably connected to the pre-set movable cavity (8) inside the base plate (3). A roller is fixedly installed at the end of the block (7). The interior of the movable cavity (4) is provided with a notch (9) and an arc groove (10). A dial wheel (11) is rotatably installed inside the notch (9) and the arc groove (10). A threaded rod (12) is fixedly inserted into the inner wall of the dial wheel (11). The threaded rod (12) is threadedly connected to the threaded groove (13) reserved inside the extended bed (5). The threaded rod (12) is anti-detached from the threaded groove (13) through the anti-detachment structure (14).

2. The CNC lathe bed according to claim 1, characterized in that, The extended bed (5) consists of two pieces, which are arranged symmetrically with reference to the central axis of the bed (1). The outer wall of the extended bed (5) is attached to the inner wall of the movable cavity (4) to achieve a sliding connection.

3. A CNC lathe bed according to claim 2, characterized in that, The outer ring of the threaded rod (12) is provided with two threads, the two threads have different directions, and the two threads with different directions are respectively connected to the threaded grooves (13) reserved in the two symmetrically arranged extension beds (5). The two ends of the threaded rod (12) are flush with the two openings of the movable cavity (4).

4. A CNC lathe bed according to claim 3, characterized in that, The anti-detachment structure (14) includes an annular cavity (141) pre-set at the left and right ends of the threaded rod (12), and an annular block (142) is rotatably installed inside the annular cavity (141). The square block (143) fixedly connected to the outer wall of the annular block (142) is connected to the square groove (144) reserved inside the extended bed (5).

5. A CNC lathe bed according to claim 4, characterized in that, The two square blocks (143) are a set of reference threaded rods (12) with the central axis of the threaded rod (12) as the axis of symmetry. They are symmetrically arranged on the outer wall of the ring block (142) and fixedly connected to the ring block (142). The outer wall of the square block (143) is attached to the inner wall of the square groove (144) to achieve a sliding connection. Both ends of the square groove (144) are closed.

6. A CNC lathe bed according to claim 5, characterized in that, There is a gap between the outer wall of the annular block (142) and the inner wall of the threaded groove (13).