A high-stability stand mechanism

Abstract

The application discloses a high-stability stand mechanism, which comprises a stand base, a stand body, a guide rail and a mounting buckle, and further comprises an inner double-layer structure, an outer connecting structure and an embedded guiding structure; the inner double-layer structure comprises an inner reinforcing plate, a horizontal plate and a mounting hole; the outer connecting structure comprises a plurality of side force relieving members arranged on the horizontal force relieving holes on the back of the stand body; the embedded guiding structure comprises an upper sealing plate arranged on the vertical force relieving holes on the top surface of the stand body, and the lower end of the upper sealing plate is connected with a connecting member; all the side force relieving members penetrate through the connecting member, the end of the connecting member extends into the vertical force relieving hole on the bottom surface and is connected with a lower sealing plate, and the lower sealing plate is fixed through an outer extending member; the application can improve the strength of the surface of the stand body for mounting the guide rail, and meanwhile, the volume of the stand body is not increased.

Description

TECHNICAL FIELD

[0001] The present application relates to a column mechanism, in particular a high-stability column mechanism. BACKGROUND

[0002] The column is usually vertically installed on the milling machine base and is used to support the spindle box, cantilever, beam and other components to bear the force and vibration generated during milling. The guide rail is installed on the column, and the spindle box or machine head is slidingly installed on the guide rail to achieve flexible machining of workpieces. Since the weight of the spindle box or machine head is generally heavy, it will cause a large burden on the guide rail, and thus easily deform the column, affecting the travel accuracy of the spindle box or machine head.

[0003] The traditional column mechanism adopts a steel plate structure with a relatively thick thickness during molding. The strength of the guide rail position is improved by improving the structure of the steel plate, thereby ensuring the pressure-bearing capacity of the guide rail position. However, this approach can cause the local position to be thicker. If the bottom or rear end position is thinner, the front end will not deform but the rear end will deform. The existing column style directly thickens the thickness of each steel plate to ensure the overall strength, but increases the volume and weight of the entire column. This not only increases the difficulty of welding, but also makes it difficult to adapt to most standard internal milling machines. The milling machine needs to install a larger base to install the column, which has poor applicability.

[0004] Therefore, the present application aims to provide a high-stability column mechanism that not only provides double-layer structural support inside the column, but also provides external support to the double-layer structure, thereby improving the strength of the side of the column used to install the guide rail without increasing the volume of the column itself. SUMMARY

[0005] The present application provides a high-stability column mechanism that can effectively solve the above problems.

[0006] The present application is implemented as follows:

[0007] A high-stability column mechanism, comprising: a column base, the upper side of which is connected to a column body, the front side of the column body is provided with two guide rails, the middle of the side of the column body on which the guide rails are installed is provided with a plurality of mounting buckles for installing a screw rod and a motor, and further comprising:

[0008] An inner double-layer structure, comprising two inner reinforcing plates arranged on the inner side of the front side of the column body, the two inner reinforcing plates are connected by a horizontal plate, and the inner side of the horizontal plate is provided with a mounting hole;

[0009] The outer connecting structure comprises a plurality of side force releasing members arranged on the horizontal force releasing holes on the back of the column body, the side force releasing members are connected with the column body through a force splitting member arranged on both sides of the horizontal force releasing holes on the back of the column body, and the front end of the side force releasing member is inserted into the prefabricated member;

[0010] The plug-in guiding structure comprises an upper sealing plate arranged on the vertical force releasing hole on the top surface, the lower end of the upper sealing plate is connected with a stringing member, all the side force releasing members pass through the stringing member, the end of the stringing member extends into the vertical force releasing hole on the bottom surface and is connected with a lower sealing plate, the lower sealing plate is fixed through an outer extension member, and the outer extension member is arranged on the bottom of the column body.

[0011] As a further improvement, the prefabricated member comprises an inner embedding seat embedded in the mounting hole, the inner embedding seat is hollow, the two sides of the inner embedding seat are provided with locking angle seats, and the inside of the inner embedding seat is provided with a counter locking seat.

[0012] As a further improvement, the side force releasing member comprises a force releasing rod penetrating through the horizontal force releasing hole, the front end of the force releasing rod is embedded into the inner embedding seat, the end of the force releasing rod is connected with the force splitting member, and the side of the force releasing rod close to the counter locking seat is provided with a counter locking.

[0013] As a further improvement, the side of the force releasing rod close to the horizontal force releasing hole is provided with an external thread part, the inner side of the force splitting member is provided with an internal thread part, and the internal thread part movably cooperates with the external thread part.

[0014] As a further improvement, the force splitting member further comprises an inner pasting plate and an outer pasting plate, the side of the inner pasting plate and the outer pasting plate close to the back of the column body is further provided with a plurality of pressure reducing springs, and the internal thread part is located in the inner ring of the inner pasting plate and the outer pasting plate.

[0015] As a further improvement, the lower end of the upper sealing plate is provided with a plurality of oblate washers, and the oblate washers are attached to the top surface of the column body.

[0016] As a further improvement, the stringing member comprises a hollow frame connected with the bottom surface of the upper sealing plate, a plurality of communication holes are arranged on the hollow frame, and the communication holes correspond to the side force releasing members one by one.

[0017] As a further improvement, the inner side of the communication hole is provided with a ring-shaped limiting ring, and the limiting ring is tightly attached to the outer side surface of the side force releasing member.

[0018] As a further improvement, the outer extension member comprises a distance adjusting member arranged on the top surface of the lower sealing plate, and a distance adjusting rod is arranged on the output end of the distance adjusting member, and the distance adjusting rod is matched with the bottom surface of the column body.

[0019] As a further improvement, the distance adjusting member is a power push rod, or the distance adjusting member is a threaded adjusting member.

[0020] The beneficial effects of the present application are:

[0021] The prior art increases the volume and weight of the entire column to ensure the strength of the column, which not only increases the difficulty of welding, but also makes it difficult to adapt to the milling machine.

[0022] However, strengthening the strength of the back side of the guide rail only enhances the strength of one side, and the inner double-layer structure indeed enhances the stability of the guide rail position without increasing the thickness, but the other surfaces are not enhanced.

[0023] The prefabricated part is welded to the inside of the column body during the overall welding stage, and the locking angle seat is tightly fastened in the inner double-layer structure through pre-welding, so that the prefabricated part can be used as a medium when the side force relieving member cooperates with the inner double-layer structure.

[0024] The side force relieving member cooperates with the inner double-layer structure, which is basically welded, but in fact, internal welding is more difficult.

[0025] The unloading rod of the side unloading force piece is directly welded with the near-horizontal unloading hole when cooperating with the near-horizontal unloading hole, otherwise, a space is easily formed to affect the overall stress distribution, therefore, the unloading rod of the present application is matched with the force splitting piece through the outer thread part and the inner thread part, and the unloading rod is linked with the column body without welding.

[0026] The force splitting piece is fixed by not only a single point during cooperation with the unloading rod, therefore, the present application adopts the way of reducing the pressure spring by matching the inner pasting plate with the outer pasting plate, so that the unloading rod can be combined with the column body at multiple points, which not only makes itself more stable, but also ensures the effect of force splitting.

[0027] Although the side unloading force piece can indeed enhance the connection between the front end and the rear end of the column, its length is relatively long, and it is easy to bend or deform in the middle during long-distance transmission, therefore, the present application sets the plug-in guide structure on the basis of the outer connection structure, and the stringing piece fixed inside the column body can provide a limiting space for the side unloading force piece, so that the middle part of the side unloading force piece can be effectively supported, thereby achieving the effect of stabilizing the side unloading force piece, and balancing the front end and the rear end to make the front end more stable.

[0028] Since the column body cannot be drilled again for stress balance, it is difficult to set the hole column cooperation when setting other structures, therefore, the present application sets the flat round gasket on the upper sealing plate, so that the hole does not need to be drilled on the column body when friction is formed, and slipping is not easy to occur.

[0029] The stringing piece guides and supports the side unloading force piece, not only single guiding, but also guiding all side unloading force pieces, through the communication hole corresponding to the side unloading force piece, supporting the middle position of the side unloading force piece, so that all side unloading force pieces can run with head, tail and middle fixed, and in order to ensure the collision inside, the inner side of the communication hole is also provided with a limiting ring, which can better limit the column side unloading force piece and better eliminate the stress therein.

[0030] Since the top of the plug-in guide structure is placed in a flat manner without any force point, the distance adjusting piece is arranged at the position of the outer expansion piece, which can tighten the bottom of the hollow frame, and since the upper sealing plate of the top is fastened, the lower sealing plate can be pushed up by the distance adjusting piece to keep the hollow frame stable, thereby keeping the side unloading force piece stable. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be considered as a limitation to the scope, and for those of ordinary skill in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0032] Figure 1 is a perspective structural schematic diagram of the present application.

[0033] Figure 2 is a front structural schematic diagram of the present application.

[0034] Figure 3 is a top structural schematic diagram of the present application.

[0035] Figure 4 is a sectional view of the present application at A-A. Figure 3

[0036] Figure 5 is a structural schematic diagram of the present application.

[0037] Figure 6 is a structural schematic diagram of the present application.

[0038] Figure 7 is an enlarged view of the present application at A area. Figure 4

[0039] Figure 8 is an enlarged view of the present application at B area. Figure 4

[0040] in the drawings:

[0041] column base 10, column body 20, horizontal force relief hole 21, vertical force relief hole 22, guide rail 30, mounting buckle 40, inner double-layer structure 50, inner reinforcing plate 51, horizontal plate 52, prefabricated part 53, inner embedding seat 531, locking corner seat 532, reverse position buckle seat 533, outer connection structure 60, side force relief part 61, force relief rod 611, outer threaded part 612, force component part 62, inner threaded part 621, inner pasting plate 622, outer pasting plate 623, pressure relief spring 624, plug-in guide structure 70, upper sealing plate 71, oblate gasket 711, stringing part 72, hollow frame 721, communication hole 722, limiting ring 723, lower sealing plate 73, outer extension part 74, distance adjusting part 741, distance adjusting rod 742. DETAILED DESCRIPTION

[0042] ​​​To make the embodiments of the present application, all belong to the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor, belong to the scope of protection of the present application.

[0043] In the description of the present application, the terms "first", "second" are only used for the purpose of description, and cannot be understood as the purpose of indicating the manner, the technical solution and the advantages are more clear, the technical solutions in the embodiments of the present application will be described clearly and completely below, it is obvious that the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor, the relative importance of the implied or implicitly indicated number of technical features. Therefore, the features with "first", "second" can be explicitly or implicitly include one or more features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0044] Reference Figures 1-8As shown, a high-stability column mechanism comprises a column base 10, the upper part of which is connected with a column body 20, the front surface of the column body 20 is provided with two guide rails 30, the middle part of the side of the guide rail 30 is provided with a plurality of mounting buckles 40 for mounting a screw rod and a motor, and further comprises an inner double-layer structure 50, which comprises two inner reinforcing plates 51 arranged on the inner side of the front surface of the column body 20, the two inner reinforcing plates 51 are connected through a horizontal plate 52, and the inner side of the horizontal plate 52 is provided with a mounting hole; an outer connection structure 60, the back surface and both sides of the column body 20 are provided with a plurality of horizontal force relief holes 21, a prefabricated part 53 is arranged in the mounting hole, the outer connection structure 60 comprises a plurality of side force relief parts 61 arranged on the horizontal force relief holes 21 of the back surface of the column body 20, the side force relief parts 61 are connected with the column body 20 through a force component 62 arranged on both sides of the horizontal force relief hole 21 of the back surface of the column body 20, and the leading end of the side force relief part 61 is inserted into the prefabricated part 53; an embedded guide structure 70, the top surface and the bottom surface of the column body 20 are provided with vertical force relief holes 22, the embedded guide structure 70 comprises an upper sealing plate 71 arranged on the vertical force relief hole 22 of the top surface, the lower end of the upper sealing plate 71 is connected with a string component 72, all the side force relief parts 61 penetrate through the string component 72, the tail end of the string component 72 extends into the vertical force relief hole 22 of the bottom surface and is connected through a lower sealing plate 73, the lower sealing plate 73 is fixed through an outer extension part 74, and the outer extension part 74 is arranged at the bottom of the column body 20.

[0045] In order to ensure the strength of the column, the volume and weight of the whole column are increased in the prior art, which not only increases the difficulty of welding, but also causes the difficulty in adapting to the milling machine. A larger base needs to be installed on the milling machine to install the column, and the applicability is poor. Therefore, the inner double-layer structure 50 is arranged at the position corresponding to the inner side of the guide rail 30, so that the strength of the position of the guide rail 30 can be improved, the single-side strength of the column is improved, and the operation of the spindle box is more stable when the guide rail 30 carries the spindle box, so that the overall machining stability is improved.

[0046] The prefabricated part 53 is welded to the inside of the column body 20 during the overall welding stage, specifically, the prefabricated part 53 comprises an embedded seat 531 nested in the mounting hole, the embedded seat 531 is hollow, the two sides of the embedded seat 531 are provided with locking angle seats 532, and the inside of the embedded seat 531 is provided with a reverse buckle seat 533. By means of pre-welding, the locking angle seat 532 can be tightly fixed in the inner double-layer structure 50, so that the prefabricated part 53 can be used as a medium when the side force relief part 61 cooperates with the inner double-layer structure 50, and since the prefabricated part 53 is used in a pre-welding manner, the stability is excellent.

[0047] But the strength of the back side of the guide rail 30 is only enhanced on one side, and the enhancement of the inner double-layer structure 50 can indeed enhance the stability of the position of the guide rail 30 without increasing the thickness, but the other surfaces are not enhanced, therefore, the outer connection structure 60 is arranged on the basis of the inner double-layer structure 50, the side force relieving member 61 is arranged at the position of the horizontal force relieving hole 21, the force received by the front end of the guide rail 30 can be partially shared to the rear end through the connection of the plurality of side force relieving members 61, the pressure of the front end is relieved, and the deformation of the entire side force relieving member 61 is not easy, and the stress can be more uniform through the force splitting member 62 at the end of the side force relieving member 61.

[0048] The side force relieving member 61 is cooperated with the inner double-layer structure 50, which is basically welded, but in fact, the internal welding is more difficult, if direct welding is adopted, due to the welding depth, it is difficult to guarantee the welding effect, and it is extremely easy to separate in daily use, therefore, the side force relieving member 61 of the embodiment comprises a force relieving rod 611 penetrating through the horizontal force relieving hole 21, the first end of the force relieving rod 611 is embedded into the inner embedding seat 531, the end of the force relieving rod 611 is connected with the force splitting member 62, the side of the force relieving rod 611 close to the reverse buckle seat 533 is provided with a reverse buckle 613, the reverse buckle seat 533 is arranged in the prefabricated part 53, the reverse buckle 613 is arranged on the side force relieving member 61, so as to form cooperation, and then the remote spot welding is adopted, so as to form a better connection effect.

[0049] The force relieving rod 611 of the side force relieving member 61 is cooperated with the horizontal force relieving hole 21, which is directly welded with the horizontal force relieving hole 21, otherwise it is easy to form a space closed, which affects the overall stress distribution, therefore, the side of the force relieving rod 611 close to the horizontal force relieving hole 21 is provided with an external thread part 612, the inner side of the force splitting member 62 is provided with an internal thread part 621, the internal thread part 621 is movably connected with the external thread part 612, the force relieving rod 611 and the force splitting member 62 are connected through the cooperation of the external thread part 612 and the internal thread part 621, so as to link the force relieving rod 611 and the column body 20 without welding.

[0050] The force component 62 is fixed in cooperation with the force relieving rod 611, not only by a single point, and therefore the force component 62 of the embodiment further comprises an inner pad 622 and an outer pad 623, and a plurality of pressure relief springs 624 are arranged on the side close to the back of the column body 20, and the inner threaded part 621 is located in the inner ring of the inner pad 622 and the outer pad 623. By arranging the force component 62, the inner pad 622 and the outer pad 623 cooperate with the pressure relief springs 624, so that the force relieving rod 611 can be combined with the column body 20 at multiple points, not only to make itself more stable, but also to ensure the effect of force distribution.

[0051] Although the side force relieving component 61 can indeed enhance the connection between the front end and the rear end of the column, its length is relatively long, and it is easy to bend or deform in the middle during long-distance transmission. Therefore, the plug-in guide structure 70 is arranged on the basis of the outer connection structure 60, and the stringing component 72 fixed in the inner side of the column body 20 can provide a limiting space for the side force relieving component 61, so that the middle part of the side force relieving component 61 can be effectively supported, thereby achieving the effect of stabilizing the side force relieving component 61, and balancing the front end and the rear end to make the front end more stable.

[0052] Since the column body 20 cannot be drilled again for stress balance, it is difficult to set up a hole column for cooperation when other structures are arranged. Therefore, the lower end of the upper sealing plate 71 of the embodiment is provided with a plurality of flat round washers 711, which are attached to the top surface of the column body 20. By arranging the flat round washers 711 on the upper sealing plate 71, friction can be formed without drilling holes on the column body 20, and slippage is less likely to occur.

[0053] The stringing component 72 guides and supports the side force relieving component 61, not only single direction, but also all the side force relieving components 61. Specifically, the stringing component 72 comprises a hollow frame 721 connected to the bottom surface of the upper sealing plate 71, a plurality of communication holes 722 are arranged on the hollow frame 721, and the communication holes 722 correspond to the side force relieving components 61 one by one. By arranging the communication holes 722 corresponding to the side force relieving components 61, the middle part of the side force relieving components 61 is supported, so that all the side force relieving components 61 can run under the condition of being fixed at the head, tail and middle. In order to ensure the collision inside, the inner side of the communication hole 722 is provided with a ring-shaped limiting ring 723, which is tightly attached to the outer side of the side force relieving component 61. The inner side of the communication hole 722 is also provided with the limiting ring 723, which can better limit the column side force relieving component 61 and better eliminate the stress therein.

[0054] Since the top of the intercalation guide structure 70 is in a flat manner without any force point, the outer extension 74 of the embodiment contains a distance adjusting element 741 arranged on the top surface of the lower sealing plate 73, and a distance adjusting rod 742 is arranged on the output end of the distance adjusting element 741, which cooperates with the bottom surface of the column body 20. The distance adjusting element 741 is arranged at the position of the outer extension 74, and the distance adjusting element 741 can tightly hold the bottom of the hollow frame 721. Since the upper sealing plate 71 of the top is fastened, the lower sealing plate 73 can be pressed by the distance adjusting element 741, so that the hollow frame 721 can be kept stable, and the stability of the side unloading force element 61 can be kept.

[0055] In the embodiment, the distance adjusting element 741 is a power push rod, which can ensure the adjusting force by automatic adjustment. However, although the automatic power adjustment is convenient, the stability is crossed. Therefore, in other embodiments, the distance adjusting element 741 is a screw adjusting element, which can be adjusted by a threaded cylinder and a threaded rod.

[0056] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A highly stable column mechanism, comprising: A column base (10) is provided, and a column body (20) is connected above the column base (10). Two guide rails (30) are provided on the front side of the column body (20). Several mounting buckles (40) are provided in the middle of the side of the column body (20) on which the guide rails (30) are mounted. The mounting buckles (40) are used to install screws and motors. The feature is that it further includes: The inner double-layer structure (50) includes two inner reinforcing plates (51) disposed on the inner side of the front of the column body (20), and the two inner reinforcing plates (51) are connected by a horizontal plate (52), and an installation hole is provided on the inner side of the horizontal plate (52). The external connecting structure (60) has several horizontal stress relief holes (21) on the back and sides of the column body (20). A prefabricated part (53) is installed in the mounting hole. The external connecting structure (60) includes several side stress relief parts (61) on the horizontal stress relief holes (21) on the back of the column body (20). The side stress relief parts (61) are connected to the column body (20) through a force distribution part (62) installed on both sides of the horizontal stress relief holes (21) on the back of the column body (20). The head end of the side stress relief part (61) is inserted into the prefabricated part (53). An insert-type guide structure (70) is provided with vertical stress relief holes (22) on the top and bottom surfaces of the column body (20). The insert-type guide structure (70) includes an upper sealing plate (71) provided on the vertical stress relief hole (22) on the top surface. The lower end of the upper sealing plate (71) is connected to a connector (72). All the side stress relief components (61) pass through the connector (72). The end of the connector (72) extends into the vertical stress relief hole (22) on the bottom surface and is connected by a lower sealing plate (73). The lower sealing plate (73) is fixed by an external expansion member (74). The external expansion member (74) is installed at the bottom of the column body (20).

2. The highly stable column mechanism according to claim 1, characterized in that, The prefabricated component (53) includes an insert (531) nested in the mounting hole. The insert (531) is hollow. Locking angle seats (532) are provided on both sides of the insert (531). A reverse buckle seat (533) is provided inside the insert (531).

3. The highly stable column mechanism according to claim 1, characterized in that, The side unloading component (61) includes an unloading rod (611) that passes through the horizontal unloading hole (21). The head end of the unloading rod (611) is embedded in the inner seat (531), and the end of the unloading rod (611) is connected to the force-sharing component (62). A reverse buckle (613) is provided on the side of the unloading rod (611) near the reverse buckle seat (533).

4. The highly stable column mechanism according to claim 3, characterized in that, The unloading rod (611) has an external thread (612) on the side near the horizontal unloading hole (21), and the force-sharing member (62) has an internal thread (621) on its inner side. The internal thread (621) and the external thread (612) are in movable cooperation.

5. The highly stable column mechanism according to claim 4, characterized in that, The force-sharing component (62) also includes an inner plate (622) and an outer plate (623). Several pressure-reducing springs (624) are provided on the side of the inner plate (622) and the outer plate (623) near the back of the column body (20). The internal thread (621) is located in the inner ring of the inner plate (622) and the outer plate (623).

6. The highly stable column mechanism according to claim 1, characterized in that, The lower end of the upper sealing plate (71) is provided with several flat round pads (711), which are attached to the top surface of the column body (20).

7. The highly stable column mechanism according to claim 1, characterized in that, The connector (72) includes a hollow frame (721) connected to the bottom surface of the upper sealing plate (71). The hollow frame (721) has several connecting holes (722), and the connecting holes (722) correspond one-to-one with the side unloading component (61).

8. The highly stable column mechanism according to claim 7, characterized in that, An annular limiting ring (723) is installed on the inner side of the connecting hole (722), and the limiting ring (723) is in close contact with the outer side of the side unloading member (61).

9. A highly stable column mechanism according to claim 1, characterized in that, The outer extension (74) includes an adjusting member (741) disposed on the top surface of the lower sealing plate (73). An adjusting rod (742) is disposed on the output end of the adjusting member (741), and the adjusting rod (742) cooperates with the bottom surface of the column body (20).

10. A highly stable column mechanism according to claim 9, characterized in that, The adjusting element (741) is a power push rod, or the adjusting element (741) is a threaded adjusting element.

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