An embedded machine tool foot structure
By using an embedded machine tool foot structure, which utilizes a pre-embedded base rigidly connected to the ground and reinforced plates to form a frame, the horizontal displacement problem of large, high-precision machine tools is solved, improving the stability and machining accuracy of the machine tools.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU YUSHI PRECISION MANUFACTURING CO LTD
- Filing Date
- 2025-09-03
- Publication Date
- 2026-06-30
AI Technical Summary
Existing technologies are insufficient to effectively suppress the horizontal displacement of large, high-precision machine tools, leading to mechanical vibration and impact, which affects machining accuracy.
An embedded machine tool foot structure is adopted, which is rigidly connected to the ground through a pre-embedded base. Four reinforcing plates form a rigid frame, and the foot is fixed to prevent horizontal displacement by combining a positioning mechanism and connecting parts.
It improves the stability and machining accuracy of the machine tool, prevents the feet from shifting in the horizontal direction, and ensures the long-term stability and machining accuracy of the machine tool.
Smart Images

Figure CN224433918U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machine tool mounting technology, specifically to an embedded machine tool mounting structure. Background Technology
[0002] Machine tool feet are fundamental components used to support, level, and fix machine tools during installation. They are usually located between the bottom of the machine tool and the foundation. By adjusting the height of the feet, the machine tool's worktable or guide rails can be made level. Their core function is to ensure the machine tool remains stable during processing, reduce vibration, and prevent displacement, thereby ensuring processing accuracy and equipment lifespan.
[0003] A search revealed Chinese patent CN212226449U, which discloses a foot structure that can adapt to both flat surfaces and surfaces with positioning holes. Specifically, one protruding end of the telescopic component compresses and retracts when placed on a flat surface; the other protruding end pops out when placed on a positioning hole in a surface with positioning holes. This application allows the same foot to accommodate both flat surfaces and surfaces with positioning holes, while requiring fewer components, resulting in lower cost and greater structural strength.
[0004] The aforementioned utility model achieves compression support on a pure plane and pop-out positioning in a positioning hole by allowing one end of the telescopic component to retract when placed on a flat surface, and the other end to pop out when placed on a plane with a positioning hole. However, existing technologies are difficult to effectively suppress the horizontal displacement of large, high-precision machine tools. Large, high-precision machine tools generate significant mechanical vibration and impact forces during operation, which may cause horizontal deviation over time, resulting in a gradual deviation in the horizontal positioning accuracy of the machine tool, which in turn affects the machining accuracy of the workpiece. Based on this, an embedded machine tool foot structure is proposed to solve the above problems. Utility Model Content
[0005] Based on the above description, this utility model provides an embedded machine tool foot structure to solve the problem that the existing technology is unable to effectively suppress the horizontal displacement of large high-precision machine tools. Large high-precision machine tools will generate significant mechanical vibration and impact force during operation, which may cause horizontal displacement after a long time, thereby causing a gradual deviation in the horizontal positioning accuracy of the machine tool, which in turn affects the machining accuracy of the workpiece.
[0006] The technical solution of this utility model to solve the above technical problems is as follows: An embedded machine tool foot structure includes a foot body, two nuts threadedly connected to the foot body, and two washers disposed between opposite sides of the two nuts;
[0007] The lower side of the ground body is provided with a positioning mechanism for limiting horizontal displacement when the machine tool is working;
[0008] The positioning mechanism includes a pre-embedded base located on the underside of the base body, two reinforcing plates fixed on the left and right sides of the pre-embedded base, an assembly groove opened at the center of the upper surface of the pre-embedded base, a connector for fixing the base body and the pre-embedded base, an mounting block fixed on the upper surface of the pre-embedded base, and an anti-slip plate fixed on the lower surface of the mounting block.
[0009] Through the above technical solution, the pre-embedded base is rigidly connected to the ground and can withstand greater loads. The four reinforcing plates form a rigid frame with the pre-embedded base, which further improves the stability of the pre-embedded base. The pre-embedded base is fixed to the ground base body through connectors to prevent the feet from shifting in the horizontal direction during machine tool operation, thereby avoiding affecting the machining accuracy of the machine tool.
[0010] Based on the above technical solution, the present invention can be further improved as follows.
[0011] Furthermore, the number of reinforcing plates is four, and they are evenly distributed on the left and right sides of the vertical central axis of the pre-embedded base.
[0012] Through the above technical solution, four reinforcing plates are embedded in the ground, which further improves the stability of the connection between the pre-embedded base and the ground.
[0013] Furthermore, the upper surface of the pre-embedded base is recessed inward to form a groove, and a sealing gasket is provided in the inner cavity of the groove.
[0014] Through the above technical solution, the sealing gasket can seal the assembly groove, thereby preventing screw corrosion and protecting the screw's service life.
[0015] Furthermore, the connector includes a No. 1 screw threaded into the assembly groove, four triangular pillars fixed to the upper surface of the mounting block, and four triangular slots formed on the lower surface of the base plate.
[0016] The No. 1 screw is fixed to the lower surface of the ground body.
[0017] Through the above technical solution, the connection can fix the grounding pipe body to the pre-embedded base, thereby fixing the horizontal position of the grounding pipe body.
[0018] Furthermore, the outer diameter of the first screw is adapted to the inner diameter of the sealing gasket, the first screw is fixed to the lower surface of the ground body, and the lower surface of the anti-slip plate is provided with multiple intersecting anti-slip patterns.
[0019] The above technical solution increases the friction between the mounting block and the ground by setting the anti-slip plate, thereby preventing the ground block from sliding and improving the stability of the machine tool during operation.
[0020] Furthermore, the four triangular prisms correspond one-to-one with the four triangular slots, and the size of the triangular prisms is adapted to the size of the inner cavity of the triangular slots. The four triangular prisms are evenly distributed on the upper surface of the mounting block.
[0021] The above technical solution enables the Mitsubishi slot and Mitsubishi column to quickly locate the position of the grounding block during installation.
[0022] Furthermore, the connector includes a second screw threaded into the assembly groove, a threaded groove formed on the lower surface of the base plate, an annular ring fixed to the upper surface of the mounting block, and an annular groove formed on the lower surface of the base plate.
[0023] The above technical solution enables the fixing of the foundation body and the pre-embedded base through the threaded connection between the No. 2 screw and the assembly groove and the threaded groove.
[0024] Furthermore, the top of the second screw passes through the mounting block and extends to the upper side of the mounting block and is threadedly connected to the threaded groove, and the size of the annular ring is adapted to the size of the inner cavity of the annular groove.
[0025] Through the above technical solution, the set annular ring and annular groove can quickly locate the horizontal position of the grounding body, so that the threaded groove opened on its lower surface can be quickly aligned with the No. 2 screw.
[0026] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:
[0027] The pre-embedded base is rigidly connected to the ground and can withstand greater loads. The four reinforcing plates form a rigid frame with the pre-embedded base, which further improves the stability of the pre-embedded base. The pre-embedded base is fixed to the ground base body through connectors to prevent the machine tool feet from shifting horizontally during operation, thereby avoiding affecting the machining accuracy of the machine tool. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the overall structure of an embedded machine tool foot structure provided in an embodiment of the present utility model;
[0029] Figure 2 This is a schematic cross-sectional view of an embodiment of the present utility model;
[0030] Figure 3 This is a schematic diagram of the positioning mechanism in an embodiment of the present utility model;
[0031] Figure 4 This is a schematic diagram of the connecting component in an embodiment of the present utility model.
[0032] Reference numerals: 1. Ground body; 2. Nut; 3. Washer;
[0033] 4. Positioning mechanism; 41. Embedded base; 42. Reinforcing plate; 43. Assembly slot; 44. No. 1 screw; 45. Mounting block; 46. Anti-slip plate; 47. Mitsubishi column; 48. Mitsubishi channel;
[0034] 5. Groove; 6. Sealing gasket;
[0035] 71. No. 2 screw; 72. Threaded groove; 73. Annular ring; 74. Annular groove. Detailed Implementation
[0036] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.
[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
[0038] Example 1: Reference Figure 1 and Figure 2 An embedded machine tool foot structure includes a foot body 1, two nuts 2 threadedly connected to the foot body 1, and two washers 3 disposed between opposite sides of the two nuts 2; a positioning mechanism 4 is provided on the lower side of the foot body 1 for limiting horizontal displacement when the machine tool is working.
[0039] refer to Figure 3 The positioning mechanism 4 includes a pre-embedded base 41 located on the underside of the base body 1, two reinforcing plates 42 fixed on the left and right sides of the pre-embedded base 41, an assembly groove 43 opened at the center of the upper surface of the pre-embedded base 41, a connector for fixing the base body 1 and the pre-embedded base 41, an mounting block 45 fixed on the upper surface of the pre-embedded base 41, and an anti-slip plate 46 fixed on the lower surface of the mounting block 45.
[0040] There are four reinforcing plates 42, which are evenly distributed on the left and right sides of the vertical central axis of the pre-embedded base 41. The reinforcing plates 42 and the pre-embedded base 41 form a rigid frame, which further improves the stability of the pre-embedded base 41 in the ground. The upper surface of the pre-embedded base 41 is recessed inward to form a groove 5. The inner cavity of the groove 5 is provided with a sealing gasket 6. The sealing gasket 6 can seal the gap between the mounting block 45 and the assembly groove 43, thereby preventing the entry of dust and liquid.
[0041] In this embodiment, the connector includes a first screw 44 threaded into the assembly groove 43, four triangular pillars 47 fixed to the upper surface of the mounting block 45, and four triangular slots 48 formed on the lower surface of the base plate body 1; the first screw 44 is fixed to the lower surface of the base plate body 1.
[0042] Among them, the outer diameter of the No. 1 screw 44 is matched with the inner diameter of the sealing gasket 6, and the lower surface of the anti-slip plate 46 is provided with multiple intersecting anti-slip patterns. The anti-slip patterns can increase the friction between the mounting block 45 and the ground, further enabling the horizontal position of the ground body 1 to be determined, thus improving the stability of the machine tool during processing.
[0043] In addition, the four prisms 47 correspond one-to-one with the four prism slots 48, and the size of the prisms 47 is adapted to the size of the inner cavity of the prism slots 48. The four prisms 47 are evenly distributed on the upper surface of the mounting block 45. The arrangement of the prisms 47 and the prism slots 48 can further restrict the displacement of the ground body 1 in the horizontal direction.
[0044] When installing the base plate body 1, align the No. 1 screw 44 at the bottom of the base plate body 1 with the assembly slot 43 opened on the pre-embedded base 41 and pass it through the mounting block 45 and the anti-slip plate 46. Rotate the base plate body 1 to ensure that the No. 1 screw 44 is completely screwed into the inner cavity of the pre-embedded base 41 after passing through the sealing washer 6. At this time, the four triangular pillars 47 fixed on the lower surface of the base plate body 1 enter the four triangular slots 48 respectively. Then insert the other end of the base plate body 1 into the connector on the side of the machine tool and fix it with two nuts 2 and two washers 3, so that the base plate body 1 can be fixed to the pre-embedded base 41.
[0045] Example 2: Reference Figure 4 The connecting parts include a second screw 71 threaded into the assembly groove 43, a threaded groove 72 formed on the lower surface of the base plate 1, an annular ring 73 fixed on the upper surface of the mounting block 45, and an annular groove 74 formed on the lower surface of the base plate 1.
[0046] The top of the second screw 71 passes through the mounting block 45 and extends to the upper side of the mounting block 45 and is threadedly connected to the threaded groove 72. The size of the annular ring 73 is adapted to the size of the inner cavity of the annular groove 74. The annular ring 73 and the annular groove 74 can quickly position the horizontal position of the grounding body 1, which facilitates the alignment between the threaded groove 72 and the second screw 71.
[0047] During installation, first align one end of the No. 2 screw 71 with the mounting groove 43 and screw it in. Then align the annular groove 74 on the lower surface of the base body 1 with the annular ring 73 fixed on the upper surface of the mounting block 45 and rotate the base body 1. The rotation of the base body 1 will cause the threaded groove 72 to be screwed onto the top of the outer side of the No. 2 screw 71, thereby fixing the base body 1 to the pre-embedded base 41 through the No. 2 screw 71.
[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An embedded machine tool foot structure, comprising a foot body (1), two nuts (2) threadedly connected to the foot body (1), and two washers (3) disposed between opposite sides of the two nuts (2); characterized in that The lower side of the ground body (1) is provided with a positioning mechanism (4) for limiting horizontal displacement when the machine tool is working; The positioning mechanism (4) includes a pre-embedded base (41) located on the underside of the base body (1), two reinforcing plates (42) fixed on the left and right sides of the pre-embedded base (41), an assembly groove (43) opened at the center of the upper surface of the pre-embedded base (41), a connector for fixing the base body (1) and the pre-embedded base (41), an mounting block (45) fixed on the upper surface of the pre-embedded base (41), and an anti-slip plate (46) fixed on the lower surface of the mounting block (45).
2. An embedded machine bed foot structure according to claim 1, characterized in that The number of the reinforcing plates (42) is four, and they are evenly distributed on the left and right sides of the vertical central axis of the pre-embedded base (41).
3. An embedded machine bed foot structure according to claim 1, characterized in that, The upper surface of the pre-embedded base (41) is recessed inward to form a groove (5), and a sealing gasket (6) is provided in the inner cavity of the groove (5).
4. An embedded machine bed foot structure according to claim 1, characterized in that, The connector includes a No. 1 screw (44) threaded into the assembly slot (43), four triangular pillars (47) fixed on the upper surface of the mounting block (45), and four triangular slots (48) formed on the lower surface of the base plate (1). The first screw (44) is fixed to the lower surface of the ground body (1).
5. An embedded machine bed foot structure according to claim 4, characterized in that The outer diameter of the first screw (44) is adapted to the inner diameter of the sealing gasket (6), and the lower surface of the anti-slip plate (46) is provided with multiple intersecting anti-slip patterns.
6. An embedded machine bed foot structure according to claim 4, wherein The four triangular pillars (47) correspond one-to-one with the four triangular slots (48), and the size of the triangular pillars (47) is adapted to the size of the inner cavity of the triangular slots (48). The four triangular pillars (47) are evenly distributed on the upper surface of the mounting block (45).
7. An embedded machine bed foot structure according to claim 1, wherein The connector includes a second screw (71) threaded into the assembly groove (43), a threaded groove (72) formed on the lower surface of the base plate (1), an annular ring (73) fixed on the upper surface of the mounting block (45), and an annular groove (74) formed on the lower surface of the base plate (1).
8. An embedded machine bed foot structure according to claim 7, characterized in that The top of the second screw (71) passes through the mounting block (45) and extends to the upper side of the mounting block (45) and is threadedly connected to the threaded groove (72). The size of the annular ring (73) is adapted to the size of the inner cavity of the annular groove (74).