Stand column for numerical control machine tool

Abstract

The utility model belongs to the technical field of numerically-controlled machine tools, and particularly relates to a stand column for a numerically-controlled machine tool, which comprises a stand column body and two first sliding grooves, the two first sliding grooves are arranged in the stand column body and communicated with the outside, and supporting plates are connected in the first sliding grooves in a sliding mode. The through groove is formed in the stand column body and communicates with the two first sliding grooves, a two-way threaded rod is rotationally connected into the through groove, and the two ends of the two-way threaded rod penetrate through the two supporting plates correspondingly and extend into the two supporting plates correspondingly to be in threaded connection with the two supporting plates; the rotating assembly is located in the stand column body and used for driving the two-way threaded rod to rotate; the numerical control machine tool stand column solves the problems that due to the fact that the size of the supporting face at the bottom of the numerical control machine tool stand column cannot be adjusted, the application range of the numerical control machine tool stand column is single, and the supporting face cannot be adjusted according to the weight of a numerical control machine tool.

Description

Technical Field

[0001] The utility model belongs to the technical field of numerical control machine tools, and in particular relates to a column for numerical control machine tools. Background Art

[0002] The column for CNC machine tools is an important part of CNC machine tools. Its structure and function have an important impact on the machining accuracy, stability and working efficiency of the machine tools. It is a three-dimensional support structure installed on the machine tool bed to fix the spindle box or workbench. It is generally welded from cast iron or steel plates, has high stability and rigidity, and can withstand the weight of the upper part of the machine tool and various machining forces.

[0003] For example, the Chinese patent with publication number CN207710295U discloses a CNC machine tool column, including a column body with a slide rail and a column base, the column body is arranged on the column base, and the column body is also provided with a groove with a triangular cross section on a plane opposite to the plane with the slide rail; the outer surface of the column base is provided with a plurality of staggered first reinforcing ribs, and the plurality of first reinforcing ribs are coplanar with the slide rail. The utility model provides a CNC machine tool column with a light structure and strong rigidity.

[0004] The above patent has the following problems:

[0005] This patent has some disadvantages when used, such as: when installing CNC machine tools of different weights, the bottom support surface of the column used is also different, the heavier the weight, the larger the support surface, and the CNC machine tool column cannot adjust the size of the bottom support surface, resulting in a relatively limited scope of use, and the support surface cannot be adjusted according to the weight of the CNC machine tool. In view of this, we propose a column for CNC machine tools. Utility Model Content

[0006] The purpose of the utility model is to provide a column for a numerically controlled machine tool to solve the problems raised in the above-mentioned background technology.

[0007] In view of this, the utility model provides a column for a CNC machine tool, comprising:

[0008] A column body and two first slide grooves, wherein the two first slide grooves are arranged in the column body and are connected to the outside, and a support plate is slidably connected in the first slide groove;

[0009] A through slot, which is provided in the column body and communicated with the two first slide slots, a bidirectional threaded rod is rotatably connected in the through slot, and two ends of the bidirectional threaded rod respectively penetrate the two support plates and extend into the two support plates respectively to be threadedly connected with the two support plates;

[0010] A rotating assembly, the rotating assembly is located in the column body and is used to drive the bidirectional threaded rod to rotate;

[0011] Two second slide grooves, the two second slide grooves are arranged in the column body and are connected to the outside, the two second slide grooves are respectively movably connected with two support rods, and one end of the two support rods is respectively rotatably connected with the two support plates, the second slide groove is slidably connected with a slider, and one side of the slider is provided with a limit block sliding with the second slide groove;

[0012] A driving assembly is located in the column body and is used to drive the two limit blocks to move.

[0013] When the two limit blocks move to appropriate positions, the two limit blocks can respectively fix the two sliders in the two second slide grooves, so that the two second slide grooves respectively fix the other ends of the two support rods.

[0014] In the above technical solution, further, the rotating assembly includes:

[0015] A first rotating groove, wherein the first rotating groove is provided on the inner wall of the through groove, a second rotating groove connected to the outside is provided on the inner wall of the first rotating groove, a worm wheel fixed to the bidirectional threaded rod is rotatably connected in the first rotating groove, and a worm screw rotating with the second rotating groove is meshed on the upper part of the worm wheel;

[0016] The motor is fixedly connected to the column body, and the output shaft of the motor extends into the second rotating groove and is fixed to one end of the worm.

[0017] In this technical solution, it is ensured that the user can adjust the position of the two support plates according to the weight of the CNC machine tool, so that the two support plates increase the support area of ​​the column body.

[0018] In the above technical solution, further, the output shaft of the motor is rotationally connected to the second rotating groove.

[0019] In this technical solution, it is ensured that the output shaft of the motor can rotate normally in the second rotation groove.

[0020] In the above technical solution, further, the driving component includes:

[0021] A movable groove is provided in the column body and is connected with the two second slide grooves. A transmission rod is movably connected in the movable groove. Two ends of the transmission rod are respectively fixedly connected with two one-way threaded rods, and one end of the two one-way threaded rods respectively penetrates through the two limit blocks and extends into the two second slide grooves and is threadedly connected with the two limit blocks. One end of one of the one-way threaded rods is fixedly connected with a rotating rod, and one end of the rotating rod penetrates through one of the sliders and extends to the outside and is rotatably connected with one of the sliders.

[0022] In the technical solution, it is ensured that when the two limit blocks move to a position where they cannot move, the two limit blocks will tightly abut against the inner walls of the two second slide grooves, and the two sliders will be fixed in the two second slide grooves respectively.

[0023] In the above technical solution, further, the threads on the two one-way threaded rods have opposite rotation directions.

[0024] In this technical solution, it is ensured that when the two one-way threaded rods rotate, the two limit blocks will move closer to each other or move away from each other.

[0025] In the above technical solution, further, the two sections of threads on the bidirectional threaded rod have opposite rotation directions.

[0026] In this technical solution, it is ensured that when the bidirectional threaded rod rotates, the two support plates will move closer to or farther away from each other.

[0027] The beneficial effects of the utility model are:

[0028] 1. The column for CNC machine tools ensures that the support plate can slide in the first slide groove by means of the first slide groove and the through groove and the bidirectional threaded rod by means of the through groove and the bidirectional threaded rod, and ensures that the bidirectional threaded rod can rotate in the through groove. When the bidirectional threaded rod rotates, the two support plates will be respectively moved away from or approached to each other by the two sections of threads with opposite rotation directions on the bidirectional threaded rod. The rotating assembly is provided to ensure that the user can drive the worm to rotate through the rotating assembly, thereby solving the problem that the column for CNC machine tools cannot adjust the size of the supporting surface at the bottom, resulting in a relatively single scope of use and the supporting surface cannot be adjusted according to the weight of the CNC machine tool.

[0029] 2. The column for CNC machine tools ensures that the other end of the support rod can both slide and rotate in the second slide groove by means of the second slide groove and the support rod, and ensures that one end of the support rod can rotate on the support plate. The slider and the limit block are ensured to slide in the second slide groove, and the driving assembly is ensured to ensure that the user can drive the two limit blocks to move in the direction away from the two sliders respectively through the driving assembly. When the two limit blocks move to appropriate positions, the two limit blocks can respectively fix the two sliders in the two second slide grooves, and the two second slide grooves respectively fix the other ends of the two support rods. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0031] Figure 2 This is one of the internal structure diagrams of the column body of the utility model;

[0032] Figure 3 This is the second schematic diagram of the internal structure of the column body of the utility model.

[0033] The symbols in the figure are:

[0034] 1. Column body; 2. First slide groove; 3. Support plate; 4. Through groove; 5. Bidirectional threaded rod; 6. Second slide groove; 7. Support rod; 8. Slider; 9. Limit block; 10. First rotating groove; 11. Second rotating groove; 12. Worm gear; 13. Worm; 14. Movable groove; 15. Transmission rod; 16. One-way threaded rod; 17. Rotating rod; 18. Motor. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0036] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0037] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0038] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0039] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0040] Embodiment 1:

[0041] See also Figure 1 - Figure 3 As shown, this embodiment provides a column for a CNC machine tool, comprising:

[0042] A column body 1 and two first slide grooves 2, wherein the two first slide grooves 2 are provided in the column body 1 and communicate with the outside, and a support plate 3 is slidably connected in the first slide groove 2;

[0043] A through slot 4 is provided in the column body 1 and communicates with the two first slide slots 2. A bidirectional threaded rod 5 is rotatably connected in the through slot 4. Two ends of the bidirectional threaded rod 5 respectively penetrate the two support plates 3 and extend into the two support plates 3 and are threadedly connected to the two support plates 3.

[0044] A rotating assembly, which is located in the column body 1 and is used to drive the bidirectional threaded rod 5 to rotate;

[0045] Two second slide grooves 6, the two second slide grooves 6 are provided in the column body 1 and are connected to the outside, two support rods 7 are movably connected in the two second slide grooves 6, and one end of the two support rods 7 is rotatably connected to the two support plates 3, a slider 8 is slidably connected in the second slide groove 6, and a limit block 9 is provided on one side of the slider 8 to slide with the second slide groove 6;

[0046] A driving assembly is located in the column body 1 and is used to drive the two limit blocks 9 to move.

[0047] Embodiment 2:

[0048] This embodiment provides a column for a CNC machine tool, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the rotating assembly includes:

[0049] A first rotating groove 10 is provided on the inner wall of the through groove 4. A second rotating groove 11 connected to the outside is provided on the inner wall of the first rotating groove 10. A worm wheel 12 fixed to the bidirectional threaded rod 5 is rotatably connected in the first rotating groove 10. A worm 13 rotatably engaged with the second rotating groove 11 is provided above the worm wheel 12.

[0050] The motor 18 is fixedly connected to the column body 1 , and the output shaft of the motor 18 extends into the second rotating groove 11 and is fixed to one end of the worm 13 .

[0051] When the user needs to install the column body 1 on the CNC machine tool, the user starts the motor 18, and the output shaft of the motor 18 drives the worm 13 to rotate in the second rotation groove 11, so that the worm 13 drives the worm wheel 12 to rotate in the first rotation groove 10. When the worm wheel 12 rotates, the worm wheel 12 drives the bidirectional threaded rod 5 to rotate in the through groove 4, so that the two support plates 3 are respectively moved away from each other along the two first slide grooves 2 by the action of the threads of the bidirectional threaded rod 5. When the two support plates 3 move to the appropriate position, the user turns off the motor 18 to ensure that the user can adjust the position of the two support plates 3 according to the weight of the CNC machine tool, so that the two support plates 3 increase the support area of ​​the column body 1.

[0052] Embodiment 3:

[0053] This embodiment provides a column for a CNC machine tool. In addition to the technical solutions of the above embodiments, it also has the following technical features: the output shaft of the motor 18 is rotatably connected to the second rotating groove 11.

[0054] Here, it is ensured that the output shaft of the motor 18 can rotate normally in the second rotation groove 11 .

[0055] Embodiment 4:

[0056] This embodiment provides a column for a CNC machine tool, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and the driving component includes:

[0057] A movable groove 14 is provided in the column body 1 and is connected to the two second slide grooves 6. A transmission rod 15 is movably connected in the movable groove 14. Two ends of the transmission rod 15 are respectively fixedly connected to two one-way threaded rods 16, and one end of the two one-way threaded rods 16 respectively penetrates the two limit blocks 9 and extends into the two second slide grooves 6 and is threadedly connected to the two limit blocks 9. One end of one of the one-way threaded rods 16 is fixedly connected to a rotating rod 17, and one end of the rotating rod 17 penetrates one of the sliders 8 and extends to the outside to be rotatably connected to one of the sliders 8.

[0058] When the two support plates 3 move, the two support plates 3 will pull the other ends of the two support rods 7 to move downward in the two second sliding grooves 6 respectively, and at the same time, one end of the two support rods 7 will rotate on the two support plates 3 respectively. When the two support plates 3 move to the appropriate position, the other ends of the two support rods 7 will stop moving in the two second sliding grooves 6 respectively. Then the user slides the two sliders 8 by hand to allow the two sliders 8 to move downward along the two second sliding grooves 6 respectively, so that the bottom surfaces of the two sliders 8 are respectively in contact with the other ends of the two support rods 7. Then the user rotates the rotating rod 17 by hand to allow the rotating rod 17 to drive one of the one-way threaded rods 16 to rotate, so that one of the one-way threaded rods 16 drives the other one-way threaded rod 16 to rotate through the transmission rod 15. When the two one-way threaded rods 16 rotate, the two limit blocks 9 will be respectively affected by the threads of the two one-way threaded rods 16 and approach each other, ensuring that when the two limit blocks 9 move to a position where they cannot move, the two limit blocks 9 will tightly abut against the inner walls of the two second sliding grooves 6, fixing the two sliders 8 in the two second sliding grooves 6 respectively.

[0059] Embodiment 5:

[0060] This embodiment provides a column for a CNC machine tool. In addition to the technical solutions of the above embodiments, it also has the following technical features: the threads on the two one-way threaded rods 16 have opposite rotation directions.

[0061] It is ensured that when the two one-way threaded rods 16 rotate, the two limit blocks 9 will move closer to each other or farther away from each other.

[0062] Embodiment 6:

[0063] This embodiment provides a column for a CNC machine tool. In addition to the technical solutions of the above embodiments, it also has the following technical features: the two sections of threads on the bidirectional threaded rod 5 have opposite rotation directions.

[0064] It is ensured that when the bidirectional threaded rod 5 rotates, the two support plates 3 will move closer to each other or farther away from each other.

[0065] When the user needs to install the column body 1 on the CNC machine tool, the user starts the motor 18 and allows the output shaft of the motor 18 to drive the worm 13 to rotate in the second rotating groove 11, so that the worm 13 drives the worm wheel 12 to rotate in the first rotating groove 10. When the worm wheel 12 rotates, the worm wheel 12 will drive the bidirectional threaded rod 5 to rotate in the through groove 4, so that the two support plates 3 are affected by the threads of the bidirectional threaded rod 5 and move away from each other along the two first slide grooves 2. When the two support plates 3 move to the appropriate position, the user turns off the motor 18 to ensure that the user can adjust the position of the two support plates 3 according to the weight of the CNC machine tool, so that the two support plates 3 increase the supporting area of ​​the column body 1. Among them, when the two support plates 3 move, the two support plates 3 will respectively pull the other ends of the two support rods 7 to move downward in the two second slide grooves 6, and at the same time, one end of the two support rods 7 will respectively rotate on the two support plates 3. When the two support plates 3 move to the appropriate position, the two support rods 7 When the two unidirectional threaded rods 16 rotate, the two limit blocks 9 will be respectively affected by the threads of the two unidirectional threaded rods 16 and approach each other, ensuring that when the two limit blocks 9 move to a position where they cannot move, the two limit blocks 9 will tightly abut against the inner walls of the two second slide grooves 6, fixing the two slide blocks 8 in the two second slide grooves 6, and at the same time, the other ends of the two support rods 7 will also be respectively fixed in the two second slide grooves 6 and cannot move, ensuring that the two support rods 7 can form an effective supporting force on the two support plates 3.

[0066] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A column for a CNC machine tool, characterized in that: include: A column body (1) and two first slide grooves (2), wherein the two first slide grooves (2) are arranged in the column body (1) and are connected to the outside, and a support plate (3) is slidably connected in the first slide groove (2); A through groove (4), the through groove (4) being arranged in the column body (1) and being connected to the two first slide grooves (2), a bidirectional threaded rod (5) being rotatably connected in the through groove (4), and two ends of the bidirectional threaded rod (5) respectively passing through the two support plates (3) and respectively extending into the two support plates (3) and being threadedly connected to the two support plates (3); A rotating assembly, the rotating assembly is located in the column body (1) and is used to drive the bidirectional threaded rod (5) to rotate; Two second slide grooves (6), the two second slide grooves (6) are arranged in the column body (1) and are connected to the outside, two support rods (7) are movably connected in the two second slide grooves (6), and one end of the two support rods (7) is rotatably connected to the two support plates (3), a slider (8) is slidably connected in the second slide groove (6), and a limit block (9) is provided on one side of the slider (8) for sliding with the second slide groove (6); A driving assembly is located in the column body (1) and is used to drive the two limit blocks (9) to move.

2. A column for a CNC machine tool according to claim 1, characterized in that: The rotating assembly comprises: A first rotating groove (10), the first rotating groove (10) being formed on the inner wall of the through groove (4), a second rotating groove (11) being formed on the inner wall of the first rotating groove (10) and being connected to the outside, a worm wheel (12) being rotatably connected to the first rotating groove (10) and being fixed to the bidirectional threaded rod (5), a worm (13) being meshed with the upper part of the worm wheel (12) and being rotatable with the second rotating groove (11); A motor (18) is fixedly connected to the column body (1), and an output shaft of the motor (18) extends into the second rotating groove (11) and is fixed to one end of the worm (13).

3. A column for a CNC machine tool according to claim 2, characterized in that: The output shaft of the motor (18) is rotationally connected to the second rotation groove (11).

4. A column for a CNC machine tool according to claim 1, characterized in that: The drive assembly comprises: A movable groove (14), wherein the movable groove (14) is arranged in the column body (1) and is connected to the two second slide grooves (6); a transmission rod (15) is movably connected in the movable groove (14); two ends of the transmission rod (15) are respectively fixedly connected to two one-way threaded rods (16); one end of the two one-way threaded rods (16) respectively penetrates the two limit blocks (9) and extends into the two second slide grooves (6) to be threadedly connected to the two limit blocks (9); one end of one of the one-way threaded rods (16) is fixedly connected to a rotating rod (17); one end of the rotating rod (17) penetrates one of the sliders (8) and extends to the outside to be rotatably connected to one of the sliders (8).

5. A column for a CNC machine tool according to claim 4, characterized in that: The threads on the two one-way threaded rods (16) have opposite rotation directions.

6. A column for a CNC machine tool according to claim 1, characterized in that: The two sections of threads on the bidirectional threaded rod (5) have opposite rotation directions.

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