Intelligent mobile platform for numerical control machining center

Abstract

This utility model relates to the field of mobile platform technology, specifically a mobile platform for an intelligent CNC machining center. It includes a mobile guide rail and a mobile platform. The mobile guide rail is fixedly mounted on the base of the intelligent CNC machining center, and the mobile platform is slidably mounted on the mobile guide rail. A clamping mechanism is provided on the mobile platform, comprising: a mounting platform; a sliding strip at the bottom of the mounting platform; and a mounting groove on the inner wall of the mobile platform. By incorporating this clamping mechanism, the mounting strip tilts and abuts against the workpiece as the rear end tilts, ensuring a tight fit. This adaptively adjusts the angle of the workpiece's rear end, achieving complete contact even with slight angular deviations between the front and rear surfaces. This prevents uneven force on the workpiece, thus avoiding displacement or deformation and improving clamping stability and machining consistency. It is particularly suitable for machining scenarios requiring high positioning accuracy.

Description

Technical Field

[0001] This utility model relates to the field of mobile platform technology, specifically to a mobile platform for an intelligent CNC machining center. Background Technology

[0002] A CNC machining center is a high-efficiency automated machine tool composed of mechanical equipment and a CNC system, suitable for machining complex parts. CNC machining centers are among the world's most produced and widely used CNC machine tools. They have strong comprehensive machining capabilities and can complete a lot of machining work after a workpiece is clamped once.

[0003] Chinese patent CN220407851U discloses "A mobile platform for an intelligent CNC machining center". The platform utilizes a first motor to rotate a transverse threaded shaft, allowing the transverse sliding seat to move left and right. Simultaneously, a second motor rotates a second threaded shaft, causing the longitudinal sliding seat to move back and forth. This allows the workpiece placed on top to adjust its position in all directions, ensuring precise movement of different items to the desired processing location. This, combined with machining tools, enables accurate processing of the workpiece and improves the platform's usability. A third motor rotates an adjusting screw on the right side, and a bevel gear set allows all four adjusting screws to rotate simultaneously, enabling the four positioning clamps to move concurrently. This facilitates workpiece positioning and clamping, ensuring stability during machining and eliminating the need for traditional fixtures, further enhancing the platform's functionality.

[0004] However, when the device clamps the workpiece, it is difficult to make the front and back sides of the existing workpiece completely parallel. Therefore, when the front and back sides are completely parallel, the non-parallel sides of the workpiece are clamped by the front and back sides. From a mechanical point of view, the reference surface is not completely in contact with the clamping surface during clamping. This will cause the force to be concentrated on one side and the force to be insufficient on the other side. This will lead to a slight displacement or deformation of the workpiece during the clamping process, affecting the stability of the workpiece and the consistency of repeated processing.

[0005] In view of this, we propose a mobile platform for intelligent CNC machining centers. Summary of the Invention

[0006] The purpose of this utility model is to provide an intelligent CNC machining center mobile platform. This intelligent CNC machining center mobile platform solves the problem that when clamping a workpiece, the front and rear surfaces are not parallel, and the reference surface cannot be completely attached to the clamping surface, resulting in uneven force and thus causing workpiece displacement or deformation, which affects the stability and consistency of machining.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A mobile platform for an intelligent CNC machining center includes a mobile guide rail and a mobile platform. The mobile guide rail is fixedly mounted on the base of the intelligent CNC machining center, and the mobile platform is slidably mounted on the mobile guide rail. A clamping mechanism is provided on the mobile platform, comprising: a mounting platform with a sliding strip at its bottom and a mounting groove on its inner wall, the sliding strip being slidably connected to the mounting groove; a front mounting strip with a front stepped strip slidably connected to its inner wall, a spring between the front stepped strip and the inner wall of the front mounting strip, a threaded mounting rod threadedly connected to the inner wall of the mounting platform, a rear mounting strip rotatably connected to the outer wall of the threaded mounting rod, a rear stepped strip slidably connected to its inner wall, and a spring between the rear stepped strip and the inner wall of the rear mounting strip; and a positioning mechanism on the sliding strip for positioning the sliding strip.

[0009] Preferably, the mounting groove is a T-shaped groove structure, and the front mounting strip is fixedly mounted on the mounting platform.

[0010] Preferably, the rear mounting strip is rotatably connected to the mounting threaded rod via a bearing structure, and the mounting threaded rod is provided with a knob head.

[0011] Preferably, the front and rear stepped strips are symmetrical, and a dustproof cover is provided between the moving guide rail and the moving platform.

[0012] Preferably, buffer limit blocks are provided at both ends of the mobile platform, and the outer surfaces of the front and rear step strips are provided with scratch-resistant and wear-resistant coatings.

[0013] Preferably, the positioning mechanism includes a toothed condition, which is fixedly connected to the inner wall of the mounting groove. The toothed condition has toothed grooves. A positioning threaded rod is threadedly connected to the inner wall of the sliding bar. A vertical slider is rotatably connected to the bottom of the positioning threaded rod. One end of the connecting condition is hinged to the bottom of the vertical slider. A horizontal slider is hinged to the other end of the connecting condition. The bottom of the horizontal slider is slidably connected to the sliding bar. The outer wall of the vertical slider is slidably connected to the sliding bar.

[0014] Preferably, the positioning threaded rod is provided with a knob structure, and there are two positioning mechanisms, which are symmetrically arranged on both sides of the sliding bar.

[0015] By employing the above technical solution, this utility model provides an intelligent mobile platform for CNC machining centers. It possesses at least the following beneficial effects:

[0016] 1. This utility model has a clamping mechanism. The rear mounting strip will tilt and abut as the rear end of the workpiece tilts, so that the workpiece is tightly fitted and installed. This adaptively fits the rear end of the workpiece at an angle. Even if there is a slight angular deviation between the front and rear sides of the workpiece, the clamping surfaces can be completely fitted, avoiding displacement or deformation caused by uneven force on the workpiece. This improves the stability of clamping and the consistency of processing, and is especially suitable for processing scenarios that require high positioning accuracy.

[0017] 2. This utility model has a positioning mechanism. The sliding bar is moved to a suitable position, and then the positioning threaded rod is rotated to drive the vertical slider to move downward. The vertical slider drives the horizontal slider to move towards the tooth condition through the linkage connection condition, so that the horizontal slider is engaged with the tooth groove on the tooth condition. The sliding bar can be quickly fixed at any position, so that the moving platform can flexibly adjust the position of the workpiece. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0019] Figure 1 This is a schematic diagram of the structure of the movable guide rail of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the mobile platform in this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the tooth condition in this utility model;

[0022] Figure 4 This is a schematic diagram of the clamping mechanism in this utility model;

[0023] Figure 5 This is a schematic diagram of the positioning mechanism in this utility model.

[0024] In the diagram: 1. Moving guide rail; 2. Moving platform; 3. Clamping mechanism; 31. Mounting platform; 32. Sliding bar; 33. Front mounting bar; 34. Front stepped bar; 35. Mounting threaded rod; 36. Rear mounting bar; 37. Rear stepped bar; 4. Positioning mechanism; 41. Mounting groove; 42. Gear condition; 43. Positioning threaded rod; 44. Vertical slider; 45. Connection condition; 46. Horizontal slider. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 - Figure 5As shown, this utility model provides a technical solution: a mobile platform for an intelligent CNC machining center, including a mobile guide rail 1 and a mobile platform 2. The mobile guide rail 1 is fixedly mounted on the base of the intelligent CNC machining center, providing a guiding reference for the movement of the mobile platform 2. Its structure is typically a linear guide rail made of high-strength metal material, capable of withstanding the load during platform movement and ensuring the straightness and stability of the movement. The mobile platform 2 is slidably mounted on the mobile guide rail 1. A driving device drives the mobile platform 2 to achieve precise forward / backward or left / right movement along the mobile guide rail 1, thereby achieving precise positioning of the workpiece. Automatic adjustment facilitates machining operations in different areas with the machining tools, improving the automation level and machining efficiency of the CNC machining center. The moving platform 2 is equipped with a clamping mechanism 3, which includes: a mounting platform 31 with a sliding bar 32 at its bottom and a mounting groove 41 on its inner wall, the sliding bar 32 being slidably connected to the mounting groove 41; and a front mounting bar 33 at its top, with a front step bar 34 slidably connected to its inner wall, a spring connecting the front step bar 34 and the inner wall of the front mounting bar 33. A threaded mounting rod 35 is threaded onto the inner wall of mounting rod 31. A rear mounting strip 36 is rotatably connected to the outer wall of mounting rod 35. A rear stepped strip 37 is slidably connected to the inner wall of rear mounting strip 36. A spring is provided between the rear stepped strip 37 and the inner wall of rear mounting strip 36. The workpiece is placed between front mounting strip 33 and rear mounting strip 36, and the workpiece is positioned appropriately on front stepped strip 34 and rear stepped strip 37 to flexibly adjust the clamping depth of the workpiece. When the threaded mounting rod 35 is rotated, causing rear mounting strip 36 to move towards front mounting strip 33, front stepped strip 34 and rear stepped strip 37 are squeezed into front mounting strip 33. The rear mounting strip 36 is mounted against the inner wall of the front mounting strip 33, and the front mounting strip 33 remains stationary during this process, maintaining the horizontality of the front end of the workpiece. The rear mounting strip 36 tilts and abuts against the rear end of the workpiece as the rear end tilts, ensuring a tight fit between the workpiece and the rear end. This adaptively fits the angle of the rear end of the workpiece, achieving complete fit of the clamping surfaces even with slight angular deviations between the front and rear surfaces. This prevents uneven force on the workpiece from causing displacement or deformation, improving clamping stability and processing consistency. It is particularly suitable for processing scenarios requiring high positioning accuracy. A positioning mechanism 4 is provided on the sliding strip 32 for positioning the sliding strip 32.

[0027] The mounting groove 41 is a T-shaped groove structure used to restrict the movement of the sliding strip 32 in the non-sliding direction. The front mounting strip 33 is fixedly installed on the mounting platform 31 and does not have a moving structure. The rear mounting strip 36 is rotatably connected to the mounting threaded rod 35 through a bearing structure to achieve its axial movement and adaptive rotation. The mounting threaded rod 35 is equipped with a knob head for manual or automatic rotation. The front step strip 34 and the rear step strip 37 are symmetrical structures for easy centering installation. A dustproof cover is provided between the moving guide rail 1 and the moving platform 2 to prevent dust and debris from entering the sliding structure and affecting the running accuracy. Both ends of the moving platform 2 are equipped with buffer limit blocks to prevent over-collision during movement. The outer surfaces of the front step strip 34 and the rear step strip 37 are coated with a scratch-resistant and wear-resistant coating to improve service life.

[0028] The positioning mechanism 4 includes a toothed condition 42, which is fixedly connected to the inner wall of the mounting groove 41. The toothed condition 42 has toothed grooves. A positioning threaded rod 43 is threadedly connected to the inner wall of the sliding bar 32. A vertical slider 44 is rotatably connected to the bottom of the positioning threaded rod 43. One end of a connecting condition 45 is hinged to the bottom of the vertical slider 44, and a horizontal slider 46 is hinged to the other end of the connecting condition 45. The bottom of the horizontal slider 46 is slidably connected to the sliding bar 32, allowing the horizontal slider 46 to slide only laterally. The outer wall of the vertical slider 44 is slidably connected to the sliding bar 32, allowing... The vertical slider 44 can only slide vertically. Move the slider 32 to the appropriate position, and then rotate the positioning threaded rod 43 to drive the vertical slider 44 to move downward. The vertical slider 44 drives the horizontal slider 46 to move towards the tooth condition 42 through the linkage connection condition 45, so that the horizontal slider 46 aligns with the tooth groove on the tooth condition 42. The slider 32 can be quickly fixed at any position, so that the moving platform 2 can flexibly adjust the position of the workpiece. The positioning threaded rod 43 is equipped with a knob structure, and there are two positioning mechanisms 4. The two positioning mechanisms 4 are symmetrically arranged on both sides of the slider 32.

[0029] This utility model discloses an intelligent CNC machining center mobile platform. In use, the workpiece is placed between the front mounting bar 33 and the rear mounting bar 36, and positioned appropriately on the front step bar 34 and the rear step bar 37. This allows for flexible adjustment of the workpiece clamping depth. When the rotating mounting threaded rod 35 moves the rear mounting bar 36 towards the front mounting bar 33, the front step bar 34 and the rear step bar 37 are compressed into the inner walls of the front mounting bar 33 and the rear mounting bar 36. The front mounting bar 33 remains stationary during this process, maintaining the horizontality of the workpiece's front end. The rear mounting bar 36 tilts and abuts as the workpiece's rear end tilts, ensuring a tight fit. This adaptively fits the rear end of the workpiece at an angle that allows for complete clamping even with slight angular deviations between the front and rear surfaces. This prevents uneven force on the workpiece, thus avoiding displacement or deformation and improving clamping stability and machining consistency. It is particularly suitable for machining scenarios requiring high positioning accuracy.

[0030] Move the sliding bar 32 to the appropriate position, and then rotate the positioning threaded rod 43 to drive the vertical slider 44 to move downward. The vertical slider 44 drives the horizontal slider 46 to move towards the tooth condition 42 through the linkage connection condition 45, so that the horizontal slider 46 engages with the tooth groove on the tooth condition 42. The sliding bar 32 can be quickly fixed at any position, so that the moving platform 2 can flexibly adjust the position of the workpiece.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mobile platform for an intelligent CNC machining center, comprising a mobile guide rail (1) and a mobile platform (2), characterized in that: The movable guide rail (1) is fixedly mounted on the base of the intelligent CNC machining center, and the movable platform (2) is slidably mounted on the movable guide rail (1). The movable platform (2) is provided with a clamping mechanism (3), which includes: The mounting platform (31) has a sliding bar (32) at its bottom and a mounting groove (41) on its inner wall. The sliding bar (32) is slidably connected to the mounting groove (41). A front mounting strip (33) is provided on the top of the mounting platform (31). A front step strip (34) is slidably connected to the inner wall of the front mounting strip (33). A spring is provided between the front step strip (34) and the inner wall of the front mounting strip (33). A mounting threaded rod (35) is threadedly connected to the inner wall of the mounting platform (31). A rear mounting strip (36) is rotatably connected to the outer wall of the mounting threaded rod (35). A rear step strip (37) is slidably connected to the inner wall of the rear mounting strip (36). A spring is provided between the rear step strip (37) and the inner wall of the rear mounting strip (36). The sliding bar (32) is provided with a positioning mechanism (4) for positioning the sliding bar (32).

2. The mobile platform for an intelligent CNC machining center according to claim 1, characterized in that: The mounting groove (41) is a T-shaped groove structure, and the front mounting strip (33) is fixedly installed on the mounting platform (31).

3. The mobile platform for an intelligent CNC machining center according to claim 1, characterized in that: The rear mounting strip (36) is rotatably connected to the mounting threaded rod (35) via a bearing structure, and the mounting threaded rod (35) is provided with a knob head.

4. The mobile platform for an intelligent CNC machining center according to claim 1, characterized in that: The front step bar (34) and the rear step bar (37) are symmetrical structures, and a dustproof cover is provided between the moving guide rail (1) and the moving platform (2).

5. The mobile platform for an intelligent CNC machining center according to claim 1, characterized in that: Both ends of the mobile platform (2) are provided with buffer limit blocks, and the outer surfaces of the front step strip (34) and the rear step strip (37) are provided with anti-scratch and wear-resistant coatings.

6. The mobile platform for an intelligent CNC machining center according to claim 1, characterized in that: The positioning mechanism (4) includes a toothed condition (42), which is fixedly connected to the inner wall of the mounting groove (41). The toothed condition (42) has a toothed groove. A positioning threaded rod (43) is threadedly connected to the inner wall of the sliding bar (32). A vertical slider (44) is rotatably connected to the bottom of the positioning threaded rod (43). One end of the connecting condition (45) is hinged to the bottom of the vertical slider (44). A horizontal slider (46) is hinged to the other end of the connecting condition (45). The bottom of the horizontal slider (46) is slidably connected to the sliding bar (32). The outer wall of the vertical slider (44) is slidably connected to the sliding bar (32).

7. The mobile platform for an intelligent CNC machining center according to claim 6, characterized in that: The positioning threaded rod (43) is provided with a knob structure, and there are two positioning mechanisms (4), which are symmetrically arranged on both sides of the sliding bar (32).

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