A machine tool bed fixing mechanism

Abstract

The utility model belongs to lathe fixed field provides a lathe bed body fixed mechanism, include: equidistance distribution in the circumference of the lathe bed body at several groups of side top subassembly, every group side top subassembly can be detachably connected to ground, and every group side top subassembly all includes guide cavity, first auxiliary abutting member and second auxiliary abutting member, the guide cavity activity cover sets in the circumference of the lathe bed body. Compared with prior art, the utility model has the advantages that the side top subassembly restricts the horizontal displacement of lathe bed body in length and width direction, cooperates the balance column linkage structure of pressure block and ground support, ensures that pressure block is compacted with stable horizontal posture compacted bed body top wall, effectively suppresses its vibration or displacement in height direction, and the overall structure realizes the accurate, stable, detachable fixing of lathe bed body in three-dimensional space, and has the advantages of convenient installation, flexible adjustment, balanced stress, and significantly improves the structural stability and machining accuracy of lathe operation.

Description

Technical Field

[0001] This utility model belongs to the field of machine tool fixing, and specifically relates to a machine tool bed fixing mechanism. Background Technology

[0002] Machine tools are widely used in production and processing, and their stability during the processing determines the final manufacturing quality of the product.

[0003] Most existing machine tools only focus on the stability of their placement, that is, ensuring that the machine tool is in a horizontal position. However, during the processing and manufacturing process, the machine tool bed often shakes due to the high processing speed or the instability of the machine tool's own structure. This not only reduces the stability of the machine tool bed, but also causes the product processing quality to fail to meet the customer's usage requirements. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned problems in the existing technology by proposing a machine tool bed fixing mechanism that is simple in structure, has good stability, and can achieve convenient and multi-directional locking.

[0005] The objective of this utility model can be achieved by addressing the following technical problem: a machine tool bed fixing mechanism is provided to limit the displacement of the machine tool bed along its length, width, and height directions, comprising: Several sets of side-top assemblies are equidistantly distributed around the periphery of the machine tool bed. Each set of side-top assemblies can be detachably connected to the ground. Each set of side-top assemblies includes a guide cavity, a first auxiliary abutment, and a second auxiliary abutment. The guide cavity is movably fitted around the periphery of the machine tool bed. The first auxiliary abutment is symmetrically arranged on the two side walls of the guide cavity. The second auxiliary abutment is perpendicular to the first auxiliary abutment. Both the first and second auxiliary abutments movably abut against the side walls around the periphery of the machine tool bed to limit the displacement of the machine tool bed along the length and width directions. Each of the side-top components is equipped with a clamping assembly. The clamping assembly includes a clamping block and a balance column. The balance column is connected to the end of the clamping block and is supported on the ground. This allows the end of the clamping block away from the balance column to press against the top wall around the perimeter of the machine tool bed in a horizontal posture, thus restricting the machine tool bed from swaying along the height direction.

[0006] In the aforementioned machine tool bed fixing mechanism, the clamping assembly further includes a connecting column and a locking nut. The connecting column passes through the clamping block and extends into the ground, and the locking nut is connected to the connecting column and movably abuts against the clamping block.

[0007] In the aforementioned machine tool bed fixing mechanism, a washer is also provided between the clamping block and the locking nut.

[0008] In the aforementioned machine tool bed fixing mechanism, an adjustment hole is also formed on the clamping block, and the connecting column is movably disposed within the adjustment hole.

[0009] In the aforementioned machine tool bed fixing mechanism, an adjusting block is movably disposed inside the balance column, and the top wall of the adjusting block movably abuts against the bottom wall of the end of the clamping block.

[0010] In the aforementioned machine tool bed fixing mechanism, an adjusting block is movably disposed inside the balance column, and the top wall of the adjusting block movably abuts against the bottom wall of the end of the clamping block.

[0011] In the above-mentioned machine tool bed fixing mechanism, both the first auxiliary clamping member and the second auxiliary clamping member include a side top block and a locking block. The fixing plate and the side plate are provided with mounting holes. The side top block passes through the mounting hole and is movably clamped against the side wall of the machine tool bed. The locking block is connected to the side top block and is used to restrict the movement of the side top block.

[0012] In the aforementioned machine tool bed fixing mechanism, the side top assembly further includes a base plate and a grounding rod. Both the fixing plate and the side plate are disposed on the base plate. The grounding rod is disposed on the base plate and extends into the ground to limit the displacement of the base plate.

[0013] In the aforementioned machine tool bed fixing mechanism, both the fixing plate and the side plate are connected to the base plate by reinforcing plates.

[0014] In the aforementioned machine tool bed fixing mechanism, a clearance groove is also provided on the base plate, and the clearance groove is connected to the guide cavity.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) The machine tool bed fixing mechanism of this utility model restricts the horizontal displacement of the machine tool bed in the length and width directions through the side top component. With the linkage structure of the clamping block and the ground support balance column, it ensures that the clamping block presses the top wall of the bed in a stable horizontal posture, effectively suppressing its vibration or displacement in the height direction. The overall structure realizes the precise, stable and detachable fixing of the machine tool bed in three-dimensional space, and has the advantages of convenient installation, flexible adjustment and balanced force, which significantly improves the structural stability and machining accuracy of the machine tool during operation.

[0017] (2) By adjusting the height of the adjusting block, the tilt angle and clamping force distribution of the clamping block can be precisely controlled, so as to achieve adaptive clamping of the top of the bed with different heights or irregularities, thereby improving the compatibility and application range of the clamping component.

[0018] (3) The gasket can evenly distribute the stress generated during the locking process, avoid the locking nut directly pressing the clamping block, which would cause local deformation or wear, and extend the service life of key components. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a structural schematic diagram of the clamping assembly and the side-top assembly; Figure 3 This is a structural schematic diagram of the side-top assembly.

[0020] In the diagram, 1 is the machine tool bed; 10 is the extension block; 2. Side top assembly; 20. First auxiliary clamping member; 21. Second auxiliary clamping member; 220. Side top block; 221. Locking block; 23. Side plate; 24. Fixing plate; 240. Mounting hole; 250. Guide cavity; 26. Base plate; 260. Clearance groove; 27. Grounding rod; 28. Reinforcing plate; 3. Clamping assembly; 30. Clamping block; 300. Adjusting hole; 31. Balance column; 310. Adjusting block; 32. Connecting column; 33. Locking nut; 34. Washer. Detailed Implementation

[0021] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0022] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0023] like Figures 1 to 3As shown, this utility model discloses a machine tool bed 1 fixing mechanism for limiting the displacement of the machine tool bed 1 along its length (L), width (W), and height (H) directions. It includes several sets of side-support components 2 equidistantly distributed around the periphery of the machine tool bed 1. Each set of side-support components 2 is detachably connected to the ground, and each set of side-support components 2 includes a guide cavity 250, a first auxiliary abutment 20, and a second auxiliary abutment 21. The guide cavity 250 is movably fitted around the periphery of the machine tool bed 1. The first auxiliary abutment 20 is symmetrically arranged on both sides of the guide cavity 250. The second auxiliary abutment 21 is connected to the first auxiliary abutment 21. The clamping member 20 is vertically arranged. The first auxiliary clamping member 20 and the second auxiliary clamping member 21 are both movable against the side wall at the periphery of the machine tool bed 1 to limit the displacement of the machine tool bed 1 in the length and width directions. The clamping assembly 3 is provided for each set of side top assemblies 2. The clamping assembly 3 includes a clamping block 30 and a balance column 31. The balance column 31 is connected to the end of the clamping block 30 and is supported on the ground, so that the end of the clamping block 30 away from the balance column 31 is movable in a horizontal posture to press against the top wall at the periphery of the machine tool bed 1, limiting the shaking of the machine tool bed 1 in the height direction.

[0024] It is worth noting that, such as Figure 1 As shown, in this embodiment, multiple extension blocks 10 are evenly distributed around the periphery of the machine tool bed 1 according to its external dimensions and contour. These extension blocks 10 facilitate the overall locking of the machine tool bed 1 by the side top assembly 2 and the clamping assembly 3 under their combined action. Specifically, as shown... Figures 1 to 3As shown, as the machine tool bed 1 is hoisted to the predetermined installation position, its bottom surface is kept in horizontal contact with the ground. During the installation process, the worker can use the guide cavity 250 to movably fit the side top assembly 2 onto the extension block 10 from the outside, forming a ring-shaped enclosing structure. By manually or with tools, the extension length of the first auxiliary clamping member 20 is adjusted so that its end slowly contacts and applies a pre-tightening force to the extension block 10, thereby achieving bidirectional limitation of the machine tool bed 1 in the length (L) direction. At the same time, the second auxiliary clamping member 21 is adjusted synchronously so that it applies a lateral clamping force to the extension block 10 in the horizontal and vertical directions, restricting its movement in the width direction. Since the first and second auxiliary clamping members 21 are perpendicular to each other and act on the side walls in different directions, they form a "+" shaped constraint, effectively preventing the bed from translating or twisting in the horizontal plane. During the process of establishing vertical constraint force in the clamping component 3, the worker can pre-fix the clamping component 3 on the ground at the corresponding position. As the balance column 31 contacts the ground and its overall height position is adjusted, it can be ensured that the free end of the clamping block 30 is pressed down to the top wall surface of the extension block 10 in a horizontal posture, thereby forming a downward constraint force on the machine tool bed 1. It can be seen that in this embodiment, the side top component 2 restricts the horizontal displacement of the machine tool bed 1 in the length and width directions. With the linkage structure of the clamping block 30 and the balance column 31 supported by the ground, it is ensured that the clamping block 30 presses the top wall of the bed in a stable horizontal posture. Combined with the balance column 31 supported by the ground, a stable lever-type clamping mechanism is formed, which effectively suppresses its vibration or displacement in the height direction, and realizes the precise, stable, and detachable fixation of the machine tool bed 1 in three-dimensional space. The overall structure layout is reasonable and the force is balanced, which greatly improves the stability and machining accuracy during the operation of the machine tool. At the same time, it has good disassembly and assembly flexibility, which is convenient for later maintenance and adjustment.

[0025] The clamping assembly 3 also includes a connecting post 32 and a locking nut 33. The connecting post 32 passes through the clamping block 30 and extends into the ground. The locking nut 33 is connected to the connecting post 32 and is movably pressed against the clamping block 30.

[0026] like Figure 1 and Figure 3As shown, in this embodiment, the connecting post 32 is a vertically arranged long rod. Its lower end extends into the pre-set mounting hole 240 or anchor sleeve in the ground, and its upper end passes through the clamping block 30, with a threaded section reserved above it. This allows the locking nut 33 to tighten or loosen the clamping block 30 by rotating it downwards. This design allows for precise control of the pressure applied to the clamping block 30 through the tightening torque of the locking nut 33, thereby regulating the clamping force on the top wall of the extension block 10 (i.e., on the machine tool bed 1). This not only enhances the connection reliability of the clamping assembly 3, but also allows the operator to fine-tune the clamping force according to actual installation needs, ensuring that the clamping block 30 always fits the top of the extension block 10 in the best posture. Furthermore, in this embodiment, the connecting post 32 extending into the ground provides basic anchoring force, which, together with the axial pressure applied by the locking nut 33, forms a dual stabilization mechanism. This effectively prevents the clamping assembly 3 from loosening and falling off due to long-term vibration, further improving the long-term safety and durability of the fixing mechanism.

[0027] Preferably, this embodiment also includes a washer 34 between the clamping block 30 and the locking nut 33. This washer 34 can evenly distribute the stress generated during the locking process, preventing the locking nut 33 from directly pressing on the clamping block 30, which could lead to localized deformation or wear and extend the service life of key components. Simultaneously, the presence of the washer 34 helps eliminate assembly gaps, improves the tightness and stability of the connection, and effectively reduces the risk of loosening, especially in high-frequency vibration environments. This enhances the fatigue resistance of the entire clamping system and ensures long-term high-precision operation of the machine tool. An adjustment hole 300 is also formed on the clamping block 30, and the connecting column 32 is movably disposed in the adjustment hole 300.

[0028] like Figure 2 As shown, the adjustment hole 300 in this embodiment has an oblong hole structure design, allowing the connecting column 32 to move and adjust its position within the hole, giving the clamping block 30 a certain degree of lateral displacement freedom. This design greatly improves the installation adaptability of the clamping assembly 3, enabling flexible adjustment of the clamping point position during on-site installation to address issues such as dimensional errors of the machine tool bed 1 or uneven ground, ensuring that the clamping force is accurately applied to the target area. Furthermore, this structure facilitates multi-point synchronous adjustment, improving overall assembly efficiency and positioning accuracy, and is particularly suitable for rapid on-site installation and debugging of large machine tools. Preferably, to avoid affecting the free adjustment of the connecting column 32 within the adjustment hole 300, the shim 34 in this embodiment also has an adjustment hole 300 of the same structure.

[0029] An adjusting block 310 is movably disposed inside the balance column 31, and the top wall of the adjusting block 310 movably abuts against the bottom wall of the end of the clamping block 30.

[0030] like Figure 2As shown, in this embodiment, the balance column 31 and the movable adjustment block 310 constitute an adjustable support structure. Specifically, by adjusting the height of the adjustment block 310, the tilt angle and clamping force distribution of the clamping block 30 can be precisely controlled, achieving adaptive clamping for different heights or irregular bed tops. This structure improves the compatibility and applicability of the clamping component 3, avoids stress concentration problems caused by rigid connections, and allows for convenient secondary leveling during later maintenance, maintaining a long-term stable clamping effect.

[0031] The side-top assembly 2 includes a fixed plate 24 and side plates 23 connecting its two ends. The side plates 23 are arranged perpendicularly to the fixed plate 24 and together form a guide cavity 250.

[0032] like Figure 3 As shown, the side-top assembly 2 in this embodiment adopts an overall frame structure consisting of a fixed plate 24 and two vertically connected side plates 23. The three together form a guide cavity 250. This structure is simple, rigid, easy to process and manufacture, and easy to install. The guide cavity 250 can be stably fitted onto the outer periphery of the machine tool bed 1, providing a reliable installation foundation and guiding function for the first and second auxiliary clamping parts 21, ensuring a smooth clamping process and accurate direction. This modular design is conducive to standardized production and mass application, while also facilitating on-site replacement and maintenance, thus improving the overall practicality and engineering feasibility of the fixing mechanism.

[0033] The first auxiliary clamping member 20 and the second auxiliary clamping member 21 both include a side top block 220 and a locking block 221. The fixing plate 24 and the side plate 23 are both provided with mounting holes 240. The side top block 220 passes through the mounting hole 240 and is movably pressed against the side wall of the machine tool bed 1. The locking block 221 is connected to the side top block 220 and is used to restrict the movement of the side top block 220.

[0034] like Figure 3 As shown, in this embodiment, the first and second auxiliary clamping components 21 are specifically designed as a combination structure including a side top block 220 and a locking block 221. The side top block 220 passes through the mounting hole 240 on the fixing plate 24 or the side plate 23 and abuts against the side wall of the bed. Its position is then locked by the locking block 221, achieving adjustable and controllable clamping force and position locking. This design not only meets the precise alignment requirements during initial installation but also firmly fixes the side top block 220 after adjustment, preventing it from retracting or shifting under machine tool vibration. The entire structure is easy to operate, responds quickly, and is suitable for rapid adaptation to various machine tool models, significantly improving the versatility and dynamic stability of the fixing mechanism. It should be noted that the locking block 221 and the side top block 220 in this embodiment are connected by threads.

[0035] The side-top assembly 2 also includes a base plate 26 and a grounding rod 27. The fixing plate 24 and the side plate 23 are both disposed on the base plate 26. The grounding rod 27 is disposed on the base plate 26 and is used to extend into the ground to limit the displacement of the base plate 26.

[0036] like Figure 3 As shown, in this embodiment, a grounding rod 27 is provided on the substrate 26 and extends into the ground, so that the side top assembly 2 forms a rigid connection with the ground through the substrate 26, which effectively restricts the displacement tendency of the substrate 26 itself in the horizontal or vertical direction. This anchoring structure greatly enhances the basic stability of the side top assembly 2 and prevents it from sliding or overturning when subjected to lateral thrust, thereby ensuring that the first and second auxiliary clamping members 21 continuously and effectively act on the side wall of the bed; together with the sleeve structure of the guide cavity 250, a "double constraint" mechanism is formed, which greatly improves the anti-disturbance capability of the entire fixing system, and is especially suitable for heavy machine tools or high vibration working environment.

[0037] Preferably, such as Figure 3 As shown, in this embodiment, a reinforcing plate 28 is added between the fixing plate 24, the side plate 23, and the base plate 26, which significantly improves the rigidity and bending resistance of the overall structure of the side top assembly 2. Since the machine tool will generate periodic vibration and impact loads during operation, if the strength of the connection part is insufficient, it will easily lead to weld cracking or structural deformation. The introduction of the reinforcing plate 28 effectively disperses the stress concentration area, enhances the connection reliability between the components, and extends the service life of the fixing mechanism. At the same time, this structure improves the overall torsional performance, ensuring that the guide cavity 250 does not deform during long-term use and maintains good guiding and limiting functions.

[0038] The substrate 26 is also provided with a clearance groove 260, which is connected to the guide cavity 250.

[0039] like Figure 3 As shown, a clearance groove 260 communicating with the guide cavity 250 is provided on the base plate 26, which provides clearance space for the guide cavity 250 to be movably fitted onto the extension block 10, avoiding interference with the machine tool bed 1 during installation. This design significantly enhances the adaptability to different types of machine tool beds 1, and installation can be completed without modifying the bed body.

[0040] It should be noted that in this invention, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0041] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0042] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A machine tool bed fixing mechanism for limiting the displacement of the machine tool bed along its length, width, and height directions, characterized in that, include: Several sets of side-top assemblies are equidistantly distributed around the periphery of the machine tool bed. Each set of side-top assemblies can be detachably connected to the ground. Each set of side-top assemblies includes a guide cavity, a first auxiliary abutment, and a second auxiliary abutment. The guide cavity is movably fitted around the periphery of the machine tool bed. The first auxiliary abutment is symmetrically arranged on the two side walls of the guide cavity. The second auxiliary abutment is perpendicular to the first auxiliary abutment. Both the first and second auxiliary abutments movably abut against the side walls around the periphery of the machine tool bed to limit the displacement of the machine tool bed along the length and width directions. Each of the side-top components is equipped with a clamping assembly. The clamping assembly includes a clamping block and a balance column. The balance column is connected to the end of the clamping block and is supported on the ground. This allows the end of the clamping block away from the balance column to press against the top wall around the perimeter of the machine tool bed in a horizontal posture, thus restricting the machine tool bed from swaying along the height direction.

2. The machine tool bed fixing mechanism according to claim 1, characterized in that, The clamping assembly also includes a connecting post and a locking nut. The connecting post passes through the clamping block and extends into the ground. The locking nut is connected to the connecting post and is movably pressed against the clamping block.

3. The machine tool bed fixing mechanism according to claim 2, characterized in that, A washer is also provided between the clamping block and the locking nut.

4. The machine tool bed fixing mechanism according to claim 2, characterized in that, An adjustment hole is also formed on the clamping block, and the connecting column is movably disposed in the adjustment hole.

5. A machine tool bed fixing mechanism according to claim 1, characterized in that, An adjusting block is movably disposed inside the balance column, and the top wall of the adjusting block movably abuts against the bottom wall of the end of the clamping block.

6. The machine tool bed fixing mechanism according to claim 1, characterized in that, The side-top assembly includes a fixed plate and side plates connecting its two ends. The side plates are arranged perpendicularly to the fixed plate and together form the guide cavity.

7. A machine tool bed fixing mechanism according to claim 6, characterized in that, Both the first auxiliary clamping member and the second auxiliary clamping member include a side top block and a locking block. The fixing plate and the side plate are provided with mounting holes. The side top block passes through the mounting hole and is movably pressed against the side wall of the machine tool bed. The locking block is connected to the side top block and is used to restrict the movement of the side top block.

8. A machine tool bed fixing mechanism according to claim 6, characterized in that, The side-top assembly also includes a base plate and a grounding rod. The fixing plate and the side plate are both disposed on the base plate. The grounding rod is disposed on the base plate and extends into the ground to limit the displacement of the base plate.

9. A machine tool bed fixing mechanism according to claim 8, characterized in that, Both the fixing plate and the side plate are connected to the base plate by reinforcing plates.

10. A machine tool bed fixing mechanism according to claim 8, characterized in that, The substrate is also provided with a clearance groove, which is connected to the guide cavity.

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