A leveling pressure plate and leveling device

Abstract

The application relates to the technical field of leveling equipment for workpiece assembly, and discloses a leveling pressure plate, which comprises a disc body, one or more leveling ring lines are arranged on the disc body, the leveling ring lines correspond to the end face of a workpiece to be leveled, and one or more pressure column groups are arranged on the disc body; the multiple pressure columns of each pressure column group are located on a corresponding leveling ring line, and the end faces of the multiple pressure columns of each pressure column group form a leveling surface which is consistent with the end face to be leveled. During leveling, the end faces of the multiple pressure columns of the pressure column group form a leveling surface which is adapted to the end face to be leveled by using vertical pressure, so that the end face to be leveled can be subjected to balanced leveling pressure during leveling; moreover, the pressure columns are directly arranged on the disc body, are firmly installed, and will not be displaced during the process of being pressed down for leveling, so that the leveling precision is ensured and the leveling effect is improved. The application further discloses a leveling device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of a leveling device for workpiece assembly, for example, to a leveling pressure plate and a leveling device. BACKGROUND

[0002] In the workpiece assembly process, the workpiece in the assembly process generally needs to be leveled to ensure assembly accuracy. Therefore, leveling is an important link in the workpiece assembly process.

[0003] At present, with the development of mechanical automation, the workpiece assembly process is gradually replaced by automatic robots. In related technologies, the leveling process generally uses the mechanical arm of a robot to simulate the knocking action of a manual rubber hammer with a knocking end. However, because the mechanical arm is a cantilever structure, if a small mechanical arm is selected, for example, a robot arm (Selective Compliance Assembly Robot Arm, SCARA) applied to assembly work, which is a cantilever structure, causes the cantilever structure to have a deformation amount during the knocking process, and the leveling accuracy cannot be accurately controlled. If a large mechanical arm is selected, it occupies a large space and has a large weight. In addition, in the leveling process, the mechanical arm end is configured with soft materials such as rubber to protect the leveling object, but there is a certain elastic deformation, and the leveling accuracy cannot be accurately controlled.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art: In the related art, the leveling accuracy of the automatic leveling process is poor. SUMMARY

[0005] To have a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not a general review, nor is it intended to determine key / important components or delineate the scope of protection of these embodiments, but as a prelude to the detailed description below.

[0006] The embodiments of the present disclosure provide a leveling pressure plate and a leveling device to solve the problem of poor leveling accuracy of the automatic leveling process in the related art.

[0007] In some embodiments, the leveling pressure plate comprises: a disc body, one or more leveling ring lines are arranged on the disc body; the leveling ring line corresponds to the end face of the workpiece to be leveled; and one or more pressure column groups are arranged on the disc body, the plurality of pressure columns of each pressure column group are located on a corresponding leveling ring line, and the end faces of the plurality of pressure columns of each pressure column group form a leveling surface consistent with the end face to be leveled.

[0008] In some embodiments, the leveling device comprises a vertical driving mechanism comprising a driving end that ascends or descends vertically, and the leveling disc of any one of the preceding embodiments is arranged on the driving end and can ascend or descend under the driving of the driving end.

[0009] The leveling disc and leveling device provided by the embodiments of the present disclosure can achieve the following technical effects:

[0010] The leveling disc provided by the embodiments of the present disclosure utilizes the pressure of vertical pressing to avoid structural deformation caused by mechanical cantilever structures during leveling; the end faces of the plurality of pressing columns of the pressing column group construct a leveling surface that is adapted to the end surface of the workpiece to be leveled, so that the end surface to be leveled can receive balanced leveling pressure during leveling, and the pressing columns are directly arranged on the disc body and are firmly installed, so that displacement does not occur during pressing and leveling, which affects the leveling accuracy, thereby ensuring the leveling accuracy and improving the leveling effect.

[0011] The foregoing general description and the following description are merely exemplary and explanatory and are not intended to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0012] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute a limitation on the embodiments, and elements with the same reference numerals in the drawings are shown as similar elements, the drawings do not constitute a proportional limitation, and wherein:

[0013] Figure 1 is a structural schematic view of a leveling disc provided by the embodiments of the present disclosure;

[0014] Figure 2 is a side structural schematic view of a leveling disc provided by the embodiments of the present disclosure;

[0015] Figure 3 is a structural schematic view of a leveling disc in direction A in Figure 1

[0016] Figure 4 is a structural schematic view of a leveling disc in direction B in

[0017] Figure 5 is a structural schematic view of a leveling disc in direction B in Figure 4 and Figure 5 Figure 3

[0018] Figure 6 is a structural schematic view of a pressing column provided by the embodiments of the present disclosure; ​​​

[0019] Figure 7 is a structural schematic diagram of a leveling device provided by an embodiment of the present disclosure;

[0020] Figure 8 is a structural schematic diagram of another leveling device provided by an embodiment of the present disclosure.

[0021] Reference signs:

[0022] 10, leveling pressure disc; 11, disc body; 110, weight-reducing hole; 111, first leveling ring line; 112, second leveling ring line; 113, third leveling ring line; 114, fourth leveling ring line; 115, fifth leveling ring line; 116, sixth leveling ring line; 12, pressure column; 1201, column body; 1202, pressure head; 1203, plug; 121, first pressure column; 122, second pressure column; 123, third pressure column; 124, fourth pressure column; 125, fifth pressure column; 126, sixth pressure column; 20, vertical driving mechanism; 21, telescopic shaft; 30, guiding and limiting mechanism; 31, guiding rod; 32, shaft hole rod; 33, positioning plate; 40, U-shaped support; 50, pressure sensor; 61, first set; 62, second set. DETAILED DESCRIPTION

[0023] In order to enable a more detailed understanding of the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be described in detail below in conjunction with the drawings, which are only used for reference and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, in order to simplify the drawings, well-known structures and devices can be simplified.

[0024] The terms "first", "second", and the like in the specification and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the terms thus used can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0025] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0026] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0027] Unless otherwise stated, the term "multiple" means two or more.

[0028] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0029] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0031] Combination Figures 1-6 As shown, this embodiment of the present disclosure provides a leveling pressure plate 10, including a plate body 11 and a pressure column group. One or more leveling loops are provided on the plate body 11, and the leveling loops correspond to the end face of the structural component to be leveled. The number of pressure column groups is one or more, and the pressure column groups are provided on the plate body 11. Multiple pressure columns 12 of each pressure column group are located on a corresponding leveling loop, and the end faces of multiple pressure columns 12 of each pressure column group form a leveling plane that is consistent with the end face to be leveled.

[0032] The leveling pressure disc 10 provided by the embodiment of the present disclosure can avoid structural deformation caused by mechanical cantilever structures and the like by using vertical pressure during leveling. The leveling surface formed by the end faces of the plurality of pressure columns 12 of the pressure column group is adapted to the end surface of the workpiece to be leveled, so that the end surface to be leveled can be subjected to balanced leveling pressure during leveling. Moreover, the pressure columns 12 are directly arranged on the disc body 11, and are firmly installed and will not be displaced during the process of downward pressure leveling, thereby ensuring the leveling accuracy and improving the leveling effect.

[0033] In the embodiment of the present disclosure, the pressure column 12 is a columnar structural member, and the end thereof not arranged on the disc body 11 is the end. During downward pressure leveling, the end face serves as a pressure holding contact end face and directly contacts the end surface of the workpiece to be leveled.

[0034] In some embodiments, the pressure column 12 is arranged on the disc body 11 in a manner perpendicular to the disc face of the disc body 11, so that the pressure column 12 can apply vertical downward pressure to the end surface to be leveled.

[0035] In the embodiment of the present disclosure, the leveling ring line arranged on the disc body 11 can be actually displayed, for example, by drawing the leveling ring line on the disc body 11 or by engraving the leveling ring line on the disc body 11. Of course, the leveling ring line can not be actually displayed (drawn or engraved), and the plurality of pressure columns 12 of a pressure column group can be arranged on the disc body 11 to embody the leveling ring line.

[0036] It can be understood that the leveling ring line corresponds to the end surface of the structural member to be leveled, and the shape and size of the leveling ring line are determined according to the shape and structure of the end surface of the structural member to be leveled. The normal projection of the leveling ring line on the end surface of the structural member to be leveled can be uniformly distributed with the shape of the end surface of the structural member to be leveled.

[0037] In a specific application, the end surface of the structural member to be leveled has a closed structure, and the size of the leveling ring line can be consistent with or smaller than the outer shape size of the end surface. In another specific application, the end surface of the structural member to be leveled has an open structure, and the size of the leveling ring line is greater than or equal to the open size of the end surface and smaller than or equal to the outer shape size of the end surface of the structural member to be leveled. That is, as long as the end faces of the pressure columns 12 arranged on the leveling ring line can contact the end surface to achieve pressure holding, the end surface outer shape size is the maximum size of the end surface.

[0038] Optionally, the shape of the leveling ring line can be consistent with the shape of the end surface of the structural member to be leveled. For example, when the shape of the end surface of the structural member to be leveled is circular, the leveling ring line is a consistent circle; when the shape of the end surface is square, the leveling ring line is a consistent square; and so on.

[0039] Optionally, the shape of the flattening ring line can be inconsistent with the shape of the end face of the structure to be flattened. For example, when the shape of the end face of the structure to be flattened is a square, the flattening ring line is a circle; when the shape of the end face of the structure to be flattened is a rectangle, the flattening ring line is an ellipse; when the shape of the end face of the structure to be flattened is a circle, the flattening ring line is a square; and so on. In the embodiment, as long as the normal projection of the flattening ring line on the end face of the structure to be flattened can form a balanced distribution with the shape of the end face of the structure to be flattened, the flattening ring line can be ensured.

[0040] In the embodiment of the present disclosure, the flattening ring line is set according to the number of flattening times involved in the assembly process and the end face of the structure to be flattened for each flattening. Generally, the end face to be flattened is a closed structure, and the structures of the end faces to be flattened of the same workpiece are similar, so that one pressure column group can be arranged on the disc body 11 to realize the flattening function in the entire assembly process.

[0041] In the embodiment of the present disclosure, for the nested structure workpiece, a plurality of flattening ring lines are arranged on the disc body 11, and the plurality of flattening ring lines one-to-one correspond to the end faces of the plurality of layers of sleeves of the nested structure workpiece.

[0042] In actual application, the nested structure workpiece is generally divided into two parts, a first part workpiece and a second part workpiece, to facilitate assembly. In the assembly process, after the first part workpiece (or the second part workpiece) is nested and assembled, the second part workpiece (or the first part workpiece) is buckled to the first part workpiece (or the second part workpiece) to complete the assembly. Therefore, in order to ensure the assembly accuracy, the end face of each layer of sleeve of the first part workpiece or the second part workpiece in the nested assembly process needs to be flattened to ensure that the end face of the plurality of layers of sleeves of the first part workpiece or the second part workpiece is in a preset state, for example, in a horizontal state. Here, the division of the first part workpiece and the second part workpiece is not limited, and the two can be assembled to facilitate assembly. Optionally, the nested structure workpiece is divided according to the principle of symmetrical division according to the shape of the nested structure workpiece. For example, the upper and lower parts are divided into an upper part workpiece and a lower part workpiece, or the left and right parts are divided into a left part workpiece and a right part workpiece.

[0043] Optionally, in combination with Figure 3 As shown in the figure, the plurality of flattening ring lines arranged on the disc body 11 are concentrically arranged. For example, as shown in the figure, the plurality of flattening ring lines are concentrically arranged as a plurality of index circles. The end face of the plurality of layers of sleeves of the nested structure workpiece is a circular open structure. Figure 3

[0044] The number of flattening ring lines arranged on the disc body 11 is not limited and is determined according to the actual situation. For example, as shown in the figure, the plurality of flattening ring lines arranged on the disc body 11 are concentrically arranged. For example, as shown in the figure, the plurality of flattening ring lines are concentrically arranged as a plurality of index circles. The end face of the plurality of layers of sleeves of the nested structure workpiece is a circular open structure.

[0044] The number of flattening ring lines arranged on the disc body 11 is not limited and is determined according to the actual situation. For example, as shown in the figure, the plurality of flattening ring lines arranged on the disc body 11 are concentrically arranged. For example, as shown in the figure, the plurality of flattening ring lines are concentrically arranged as a plurality of index circles. The end face of the plurality of layers of sleeves of the nested structure workpiece is a circular open structure. Figure 2As shown, the disc body 11 is provided with seven leveling ring lines. From the outside to the inside, they are the first leveling ring line 111, the second leveling ring line 112, the third leveling ring line 113, the fourth leveling ring line 114, the fifth leveling ring line 115, the sixth leveling ring line 116 and the seventh leveling ring line 117; correspondingly, the pressure column groups include the first pressure column group (including a plurality of first pressure columns 121) located on the first leveling ring line 111, the second pressure column group (including a plurality of second pressure columns 122) located on the second leveling ring line 112, the third pressure column group (including a plurality of third pressure columns 123) located on the third leveling ring line 113, the fourth pressure column group (including a plurality of fourth pressure columns 124) located on the fourth leveling ring line 114, the fifth pressure column group (including a plurality of fifth pressure columns 125) located on the fifth leveling ring line 115, the sixth pressure column group (including a plurality of sixth pressure columns 126) located on the sixth leveling ring line 116, and the seventh pressure column group (including a plurality of seventh pressure columns) located on the seventh leveling ring line 117.

[0045] In some embodiments, in combination with Figure 2 As shown, the leveling pressure disc 10 includes a plurality of pressure column groups, and the lengths l of the pressure columns 12 of the plurality of pressure column groups protruding from the disc body 11 are different. In this embodiment, the length l of the pressure column 12 protruding from the disc body 11 is the length from the disc surface of the disc body 11 on the installation side of the pressure column 12 to the end of the pressure column 12, that is, the horizontal height of the end surface of the pressure column 12 of the plurality of pressure column groups is different during the leveling operation. It can avoid interference between the pressure column groups during different leveling operations. The lengths of the pressure columns 12 of the plurality of pressure column groups are determined according to the actual leveling requirements of the workpiece.

[0046] In some specific applications, in each adjacent two pressure column groups, the length l of the pressure column 12 of the pressure column group located on the outside protruding from the disc body 11 外 is equal to or less than the length l of the pressure column 12 of the pressure column group located on the inside protruding from the disc body 11 内 . That is, the horizontal height (denoted as "outside horizontal height") of the end surface of the pressure column 12 of the pressure column group located on the outside is equal to or higher than the horizontal height (denoted as "inside horizontal height") of the end surface of the pressure column 12 of the pressure column group located on the inside during the leveling operation. Taking the nested structure workpiece as an example, in the assembly process of the nested structure workpiece, it is generally assembled in a nested manner from the outer layer to the inner layer, and the outer side sleeve is leveled first, and then the inner side sleeve is leveled in sequence. Therefore, by setting the outside horizontal height and the inside horizontal height, the interference problem during leveling of different sleeves can be avoided.

[0047] Alternatively, in each adjacent two pressure column groups, the length l of the pressure column 12 of the pressure column group located on the outside protruding from the disc body 11 外 is equal to the length l of the pressure column 12 of the pressure column group located on the inside protruding from the disc body 11.内 That is, the horizontal height of the end surface of the press column 12 of the press column group on the outer side is equal to the horizontal height of the end surface of the press column 12 of the press column group on the inner side.

[0048] The present embodiment is applicable to the case where the end surfaces of the multi-layered sets of the first part workpiece (or the second part workpiece) of the nested structure workpiece are flush or the end surfaces of the sets from the outer side to the inner side are higher. In this case, when the end surface of the set on the inner layer is leveled, the end surface of the set on the outer layer is leveled at the same time, and the end surfaces of the multi-layered sets are leveled.

[0049] Alternatively, as shown in Figs. 2 and 3, the length l Figure 4 of the press column 12 of the press column group on the outer side protruding from the disc body 11 is less than the length l Figure 5 of the press column 12 of the press column group on the inner side protruding from the disc body 11. 外 内 That is, the horizontal height of the end surface of the press column 12 of the press column group on the outer side is higher than the horizontal height of the end surface of the press column 12 of the press column group on the inner side.

[0050] The present embodiment is applicable to the case where the end surfaces of the multi-layered sets of the first part workpiece (or the second part workpiece) of the nested structure workpiece are flush or the end surfaces of the sets from the outer side to the inner side are higher. In this case, when the end surface of the set on the inner layer is leveled, the end surface of the set on the outer layer is leveled at the same time, and the end surfaces of the multi-layered sets are leveled.

[0051] In addition, the present embodiment is also applicable to the case where the end surfaces of the multi-layered sets of the first part workpiece (or the second part workpiece) of the nested structure workpiece are lower from the outer side to the inner side. In this case, the height difference of the end surface of the press column 12 of the press column group between the adjacent two press column groups is equal to or greater than a first set value, which is the height difference of the end surfaces of the adjacent two sets corresponding to the adjacent two press column groups. When the height difference of the end surface of the press column 12 of the press column group between the adjacent two press column groups is equal to the first set value, the end surface of the set on the outer layer is leveled at the same time as the end surface of the set on the inner layer is leveled, and the end surfaces of the multi-layered sets are leveled. When the height difference of the end surface of the press column 12 of the press column group between the adjacent two press column groups is greater than the first set value, the end surface of the set on the outer layer is not leveled when the end surface of the set on the inner layer is leveled.

[0052] ​Combining 3 to Figure 5 The flattening operation of the adjacent two sets of nested structure workpieces is described, wherein, Figure 4 and Figure 5 The flattening pressure plate 10B-B in the cross-sectional structure diagram only shows the pressure column 12 located on the cross-sectional line to more clearly show the flattening process.

[0053] Among the adjacent two sets of nested structure workpieces, the first set 61 on the outer side corresponds to the first pressure column group located on the first flattening ring line 111, and the first pressure column group includes a plurality of first pressure columns 121; the second set 62 on the inner side corresponds to the second pressure column group located on the second flattening ring line 112, and the second pressure column group includes a plurality of second pressure columns 122. As shown in Figure 4 When the first set 61 is flattened by using the first pressure column group, the internal set is not assembled, the inside is empty, and the pressure columns 12 of the remaining pressure column groups will not interfere. As shown in Figure 5 When the second set 62 is flattened by using the second pressure column group, the length of the second pressure column 122 is greater than the length of the first pressure column 121, so that when the second set 62 is flattened, the first pressure column 121 on the outer side will not contact the first set 61, achieving flattening of the second set 62 without interference with the first set 61. Of course, the first pressure column 121 on the outer side can also be adapted to contact the first set 61 when the second set 62 is flattened, so that the first set 61 and the second set 62 are flattened at the same time, the relative parallelism of the two sets is maintained, and the parallelism precision between the sets is improved.

[0054] In the embodiments of the present disclosure, a plurality of flattening ring lines are provided on the disc body 11, and the spacing between the adjacent two flattening ring lines is not limited and is determined according to the relative position of the corresponding end face to be flattened. For example, for nested structure workpieces, the spacing between the adjacent two sets of end faces to be flattened is determined. When the number of flattening ring lines is equal to or greater than 3, the number of spacings between every two flattening ring lines is equal to or greater than 2, and the sizes of the plurality of spacings can be the same, different, partially the same and partially different, which is not limited.

[0055] In some embodiments, in combination with Figure 3 and Figure 4 As shown in Figure 3 For example, the flattening ring line is circular, and the radial lines where the pressure columns 12 provided on the adjacent two flattening ring lines do not coincide. In this way, on the one hand, the problem of interference between the pressure columns 12 caused by the small spacing between the adjacent two flattening ring lines can be avoided, and on the other hand, the problem of reduced strength of the disc body 11 caused by the opening of two adjacent and close mounting holes on the same radial line can be avoided.

[0056] In the embodiments of the present disclosure, a plurality of pressing columns 12 are arranged on each leveling ring line, and the plurality of pressing columns 12 are distributed on the leveling ring line without limitation, and are arranged according to the principle that they can apply balanced pressure to the belt leveling end face, so as to ensure that the to-be-leveled sleeve assembly will not be tilted on one side and ensure the leveling effect.

[0057] Optionally, the plurality of pressing columns 12 are symmetrically arranged on the leveling ring line with the center of the leveling ring line as the symmetric point. That is, the number of pressing columns 12 in each pressing column group is at least 2, and the pressing columns 12 are symmetrically arranged with the center of the leveling ring line as the symmetric point, so as to ensure that uniform downward pressure is formed on the to-be-leveled end face, and the problem that the workpiece is tilted on one side due to uneven downward pressure does not occur, thereby ensuring the leveling effect.

[0058] In the embodiments of the present disclosure, the number of pressing columns 12 in each pressing column group is not less than 2. Optionally, the number of pressing columns 12 is not less than 3. Optionally, the number of pressing columns 12 is not less than 4. The number of pressing columns 12 is not limited in principle, and the upper limit value is not limited. The more the number of pressing columns 12, the more the contact points with the to-be-leveled end face. It can be understood that when the number of pressing columns 12 is sufficient, the pressing columns 12 are arranged closely to form a ring-shaped pressing ring.

[0059] In some embodiments, the number of pressing columns 12 in each pressing column group is 2-10. The specific number of pressing columns 12 is determined according to the shape and size of the leveling ring line.

[0060] Optionally, the number of pressing columns 12 is 2-8.

[0061] Optionally, the number of pressing columns 12 is 3-6. In the embodiments, the number of pressing columns 12 can be 3, 4, 5 or 6.

[0062] Optionally, the number of pressing columns 12 is 4.

[0063] In the embodiments of the present disclosure, during the downward leveling, the end face of the pressing column 12 contacts and holds on the to-be-leveled end face, so the end face of the pressing column 12 is arranged to be adapted to the shape of the contact surface of the to-be-leveled end face, so as to increase the contact area and improve the stability of the holding.

[0064] Optionally, the end face of the pressing column 12 is a plane. In the embodiments, when the pressing column 12 is arranged on the disc body 11 and the end face of the pressing column 12 is a horizontal plane, the leveling plane constructed by the pressing column group is a plane, which is suitable for the case that the to-be-leveled end face is a plane. When the pressing column 12 is arranged on the disc body 11 and the end face of the pressing column 12 is an inclined plane, the leveling plane constructed by the pressing column group is a pyramid surface, which is suitable for the case that the to-be-leveled end face is a prism surface.

[0065] Optionally, the end face of the pressing column 12 is a curved surface. The leveling plane constructed by the pressing column group in the embodiments of the present disclosure is a curved surface, which is suitable for the case that the to-be-leveled end face is a curved surface.

[0066] In the embodiments of the present disclosure, the end faces of the plurality of pressing columns 12 of the pressing column group are adapted to the end faces to be flattened of the workpiece, and the end faces to be flattened can be located in the same horizontal plane or different horizontal planes. Therefore, the plurality of pressing columns 12 of the same pressing column group are adaptively arranged according to the shape and height of the end faces to be flattened, so that the end faces of the plurality of pressing columns 12 construct an adaptive flattened surface, and the end faces not in the same horizontal plane can be subjected to the same flattening pressure during flattening, so as to achieve accurate flattening. That is, the horizontal heights of the ends of the plurality of pressing columns 12 of the pressing column group are the same or different. The arrangement can be made according to the actual situation.

[0067] In some embodiments, the lengths l of the plurality of pressing columns 12 protruding from the disc body 11 are the same in the same pressing column group. Alternatively, when the end faces of the pressing columns 12 are flat, the flattened surface constructed is flat, which is suitable for the case that the end faces to be flattened are flat.

[0068] In some embodiments, the lengths l of the plurality of pressing columns 12 protruding from the disc body 11 are different in the same pressing column group. Alternatively, when the end faces of the pressing columns 12 are flat, the flattened surface constructed is non-flat, which is suitable for the case that the end faces to be flattened are non-flat, for example, the case that the end faces to be flattened are stepped.

[0069] In some embodiments, a plurality of fixing holes are formed on the disc body 11 along the flattening ring line, for fixedly arranging the pressing columns 12. The positions of the fixing holes are determined according to the arrangement mode of the pressing columns 12. It can be understood that the fixed ends of the pressing columns 12 are provided with plug-in joints 1203. The plug-in joints 1203 are fixedly inserted into the fixing holes on the disc body 11.

[0070] In the embodiments of the present disclosure, the specific structural form of the disc body 11 is not limited, and the disc body 11 can only be capable of uniformly transmitting the pressing force to the pressing columns 12 during the vertical pressing flattening process. In some embodiments, the disc body 11 is in the form of a flat plate. Alternatively, the disc body 11 is in the form of a circular flat plate.

[0071] In some embodiments, the disc body 11 is provided with a weight-reducing structure. The weight-reducing structure can reduce the influence of the gravity of the disc body 11 on the pressing force. Alternatively, the weight-reducing structure includes a plurality of weight-reducing holes 110, which penetrate the disc body 11 in the thickness direction and avoid the arrangement positions of the pressing columns 12.

[0072] In the embodiments of the present disclosure, the shape of the disc body 11 can be consistent with the shape of the flattening ring line. For example, the disc body 11 is in the form of a circle.

[0073] In some embodiments, the disc body 11 is provided with a weight-reducing structure. The weight-reducing structure can reduce the influence of the gravity of the disc body 11 on the pressing force. Alternatively, the weight-reducing structure includes a plurality of weight-reducing holes 110, which penetrate the disc body 11 in the thickness direction and avoid the arrangement positions of the pressing columns 12. Figure 6As shown, the pressing column 12 comprises a column body 1201, a pressing head 1202 and a plug-in head 1203. The column body 1201 is in solid column or hollow column shape; the pressing head 1202 is coaxially arranged at one end of the column body 1201, and the radial dimension of the pressing head 1202 is smaller than that of the column body 1201; the plug-in head 1203 is coaxially arranged at the other end of the column body 1201, and the radial dimension of the plug-in head 1203 is smaller than that of the column body 1201, for being arranged on the disc body 11. A stepped limiting surface is formed between the plug-in head 1203 and the column body 1201, which abuts against the lower disc surface of the disc body 11 when the pressing column 12 is fixedly arranged on the disc body 11, so that the installation is convenient, and the distance from the end of the pressing column 12 to the lower disc surface of the disc body 11 is easy to control, which can ensure the accuracy of the constructed leveling plane, and further ensure the leveling accuracy. The length of the pressing column 12 is adjusted by adjusting the length of the column body 1201.

[0074] Optionally, the pressing column 12 is integrally formed. The coaxiality and structural stability of the column body 1201, the pressing head 1202 and the plug-in head 1203 are ensured.

[0075] Optionally, the pressing head 1202 is in solid column or hollow column shape. The actual situation is determined.

[0076] Optionally, the material of the pressing column 12 is metal, for example, stainless steel. The metal pressing column 12 will not leave marks on the workpiece surface during the leveling process by using the vertical downward pressing method.

[0077] In some embodiments, the pressing column 12 on the leveling pressing disc 10 can also be subjected to finishing treatment after being installed on the disc body 11. In this embodiment, the finishing treatment specifically includes fine milling treatment. Based on the fact that the disc body 11 is controlled to be vertically downward pressed during the leveling process, the thickness uniformity of the disc body 11 will also affect the contact state between the pressing column 12 and the end surface to be leveled, so that the whole is subjected to finishing after the pressing column 12 is installed on the disc body 11, so as to obtain better form and position tolerances between the pressing heads 1202 of the pressing column 12 and between the pressing head 1202 and the disc body 11.

[0078] In actual application, the pressing columns 12 with the same length l requirement can be installed on the disc body 11, and then subjected to finishing once. Specifically, during the installation process of multiple pressing column groups and multiple pressing columns of the same pressing column group, the pressing columns with small length l are installed first, and then the pressing columns 12 with the same length l requirement are installed on the disc body 11, and then subjected to finishing once.

[0079] In combination Figures 1 to 8As shown, the leveling device disclosed by the embodiment of the present disclosure comprises a vertical driving mechanism 20 and the leveling pressure plate 10 of any of the foregoing embodiments, the vertical driving mechanism 20 comprises a driving end, the driving end is raised or lowered along the vertical direction; the leveling pressure plate 10 is arranged on the driving end and can be raised or lowered under the driving of the driving end.

[0080] The leveling device of the embodiment of the present disclosure can drive the leveling pressure plate 10 to move along the vertical direction, so that the leveling pressure plate 10 applies a vertical downward pressure to the end face to be leveled, the driving end of the vertical driving mechanism 20 does not deform, the vertical downward leveling pressure is ensured, the leveling accuracy is ensured, and the leveling effect is improved.

[0081] It can be understood that the leveling pressure plate 10 is arranged on the driving end of the vertical driving mechanism 20 in a horizontal manner of the disc body 11, so that the pressing column 12 is vertical. When the vertical driving mechanism 20 drives the leveling pressure plate 10 to descend, the pressing column 12 is vertically pressed on the end face to be leveled. Moreover, the driving end is downwardly arranged, so that the leveling pressure plate 10 can be pressed on the end face to be leveled of the workpiece located below when the leveling pressure plate 10 descends.

[0082] In some embodiments, the vertical driving mechanism 20 comprises a servo cylinder, the servo cylinder comprises a telescopic shaft 21, the telescopic shaft 21 is arranged vertically and can be raised or lowered along the vertical direction; the leveling pressure plate 10 is arranged on the end of the telescopic shaft 21. In this embodiment, the telescopic shaft 21 of the servo cylinder drives the leveling pressure plate 10 to rise or descend. Alternatively, the servo cylinder adopts a roller screw cylinder, the roller screw is the telescopic shaft 21, and has the characteristics of large thrust and stable transmission.

[0083] It can be understood that the leveling device further comprises a support, the vertical driving mechanism 20 is arranged on the support and the driving end thereof is downward and vertical.

[0084] In some embodiments, the leveling device further comprises a guide limiting mechanism 30, the guide limiting mechanism 30 is provided with a guide rod 31 capable of moving in the vertical direction, the guide rod 31 is connected with the leveling pressure plate 10; during the rising or descending of the leveling pressure plate 10 under the driving of the driving end of the vertical driving mechanism 20, the guide rod 31 rises or descends in the vertical direction under the driving of the leveling pressure plate 10. The leveling pressure plate 10 is guided in the vertical direction to prevent the leveling pressure plate 10 from deviating during the rising or descending.

[0085] Alternatively, the number of guide rods 31 is multiple. The rising or descending of the leveling pressure plate 10 in the vertical direction is better limited. Alternatively, the number of guide rods 31 is 2, 3, 4 or more, which is determined according to actual needs.

[0086] In this embodiment, the implementation manner of the guide rod 31 capable of moving in the vertical direction is not limited and can be set according to actual conditions.

[0087] In a specific example, the guiding and limiting mechanism 30 comprises a shaft hole rod 32 and a guiding rod 31, the guiding rod 31 is slidingly arranged in the shaft hole of the shaft hole rod 32; the shaft hole rod 32 is fixedly arranged vertically, and the guiding rod 31 can move (i.e. extend and retract) vertically in the shaft hole of the shaft hole rod 32. In the embodiment, the shaft hole rod 32 and the guiding rod 31 form an extendable and retractable sleeve rod structure. According to actual needs, the number of the extendable and retractable sleeve rod structure can be determined.

[0088] Optionally, the guiding and limiting mechanism 30 further comprises a positioning plate 33, the positioning plate 33 is fixedly arranged, and the positioning plate 33 is provided with a fixed through hole, the shaft hole rod 32 is arranged in the fixed through hole, and the guiding rod 31 is located below the positioning plate 33. The end of the guiding rod 31 is arranged on the upper disc surface of the leveling disc 10.

[0089] In actual application, the positioning plate 33 can be arranged in combination with the bracket in which the vertical driving mechanism 20 is arranged, so that the vertical driving mechanism 20 and the guiding and limiting mechanism 30 can be arranged at the same time.

[0090] In a specific application, the leveling device further comprises a fixed bracket, the vertical driving mechanism 20 and the guiding and limiting mechanism 30 are arranged on the fixed bracket. As shown in the figure, the fixed bracket comprises two U-shaped brackets 40 and the positioning plate 33, the open ends of the two U-shaped brackets 40 are located below and are fixedly arranged, the positioning plate 33 is fixedly arranged between the cross beams of the two U-shaped brackets 40, the positioning plate 33 is provided with a first fixed through hole and a plurality of second fixed through holes, the first fixed through hole is used for fixedly arranging the vertical driving mechanism 20, and the second fixed through hole is used for fixedly arranging the guiding and limiting mechanism 30. Figure 7 The number of the second fixed through holes is determined according to the number of the guiding rods 31. When the number of the second fixed through holes is a plurality, the layout of the plurality of second fixed through holes is determined according to actual conditions. As shown in the figure, the plurality of second fixed through holes are arranged uniformly around the first fixed through hole.

[0091] Figure 7 The number of the second fixed through holes is determined according to the number of the guiding rods 31. When the number of the second fixed through holes is a plurality, the layout of the plurality of second fixed through holes is determined according to actual conditions. As shown in the figure, the plurality of second fixed through holes are arranged uniformly around the first fixed through hole.

[0092] Optionally, the U-shaped bracket 40 can be a gantry bracket.

[0093] The leveling device of the embodiment of the present disclosure, in the leveling process, the leveling disc 10 is lowered from the initial position, and after contacting the end face to be leveled, the leveling disc 10 is pressed downward to apply a certain leveling pressure to the end face to be leveled, so as to achieve the leveling purpose. That is, the leveling disc has a lowering stage and a pressing stage in the leveling process, and a certain leveling pressure is applied to the end face to be leveled through the pressing stage, so as to achieve leveling.

[0094] ​In some embodiments, the flattening device further comprises a first controller electrically connected with the vertical driving mechanism 20; the first controller is configured to determine that the flattening pressure plate 10 is lowered to the flattening position according to the lowering displacement of the driving end of the vertical driving mechanism 20, and control the vertical driving mechanism 20 to stop. In this embodiment, the flattening position of the flattening pressure plate refers to the position where the end of the pressing column of the flattening pressure plate contacts the end face to be flattened and exerts a certain flattening pressure on the end face to be flattened.

[0095] Optionally, the first controller is configured to determine that the flattening pressure plate 10 is lowered to the flattening position according to the lowering displacement of the driving end of the vertical driving mechanism 20, including: determining that the end of the pressing column 12 of the flattening pressure plate 10 contacts the end face to be flattened according to the lowering displacement of the driving end of the vertical driving mechanism 20, controlling the driving end of the vertical driving mechanism 20 to lower at a set lowering rate, and controlling the vertical driving mechanism 20 to stop lowering when it is determined that the preset flattening pressure is reached. This implementation realizes smooth and slow lowering of the flattening pressure plate 10 when it contacts the end face to be flattened, and further controls the flattening pressure of the flattening pressure plate 10 on the end face to be flattened, thereby achieving accurate flattening. In this embodiment, the set lowering rate can be determined according to the actual workpiece and the end face to be flattened, and is not limited.

[0096] In this embodiment, the determination that the preset flattening pressure is reached can be determined by setting the product of the set lowering rate and the set lowering time. That is, controlling the driving end of the vertical driving mechanism 20 to lower at a set lowering rate and controlling the vertical driving mechanism 20 to stop lowering when it is determined that the preset flattening pressure is reached, includes: controlling the driving end of the vertical driving mechanism 20 to lower at a set lowering rate and starting timing, and controlling the vertical driving mechanism 20 to stop lowering when the timing reaches the set lowering duration. The set lowering rate and the set lowering duration can be determined according to the required preset flattening pressure, the driving force of the vertical driving mechanism 20, and other parameters.

[0097] In this embodiment, the lowering duration of the lowering stage can be determined by the lowering rate of the flattening pressure plate 10 in the lowering stage and the known required lowering displacement, and therefore, the first controller can determine that the end of the pressing column 12 of the flattening pressure plate 10 contacts the end face to be flattened when the flattening pressure plate 10 is controlled to lower at a set lowering rate and lower for a set lowering duration. In the workpiece assembly process, the lowering displacement of the driving end of the vertical driving mechanism 20 will be different each time the flattening operation is performed, and the set lowering duration for each flattening operation can be set according to the actual situation.

[0098] In a specific application, the control output end of the first controller is electrically connected with the control end of the servo cylinder. The first controller is used to determine that the leveling pad 10 is lowered to the leveling position according to the lowering displacement of the driving end of the vertical driving mechanism 20, and control the vertical driving mechanism 20 to stop, specifically including: the first controller controls the servo cylinder to start lowering at a set lowering rate and timing, controls the servo cylinder to lower at a set lowering rate and re-timing when the timing reaches the set lowering time, and controls the servo cylinder to stop lowering when the timing reaches the set lowering time.

[0099] In other embodiments, the leveling device further includes a pressure sensor 50 and a second controller. The pressure sensor 50 is arranged between the driving end (for example, the end of the telescopic shaft 21) and the leveling pad 10; the second controller is electrically connected with the vertical driving mechanism 20 and the pressure sensor 50 respectively; the second controller is used to determine that the leveling pad 10 is lowered to the leveling position according to the pressure value of the pressure sensor 50, and control the vertical driving mechanism 20 to stop. In this embodiment, the pressure sensor 50 is used as a feedback element for the leveling pad 10 to be lowered to the leveling position, and forms a closed-loop control with the second controller and the vertical driving mechanism 20, which can more accurately control the pressure of the leveling pad 10, and the control process will not produce a large force knocking operation.

[0100] In this embodiment, during the control of the lowering of the leveling pad, when the pressure column of the leveling pad does not contact the end face to be leveled (lowering stage), the pressure sensor 50 is not subjected to pressure, and the pressure sensor 50 will not output a pressure value detection signal at this stage; when the pressure column of the leveling pad contacts the end face to be leveled and gradually lowers (lowering stage), the pressure sensor 50 starts to output a pressure value detection signal and the pressure value detection signal gradually increases until a preset pressure value is reached, reaches the leveling position, and then stops lowering, completing leveling.

[0101] Optionally, the second controller is used to determine that the leveling pad 10 is lowered to the leveling position according to the pressure value of the pressure sensor 50, and control the vertical driving mechanism 20 to stop, including: the second controller controls the driving end (i.e. the leveling pad 10) of the vertical driving mechanism 20 to lower, when the pressure value detection signal of the pressure sensor 50 is received, controls the driving end to lower at a set lowering rate, and controls the vertical driving mechanism 20 to stop lowering when the pressure value detection signal of the pressure sensor 50 reaches a preset pressure value. The leveling pad 10 is lowered smoothly and slowly when it touches the end face to be leveled, and the leveling pressure of the leveling pad 10 on the end face to be leveled is controlled, and accurate leveling is achieved. In this embodiment, the set lowering rate' can be determined according to the actual workpiece and the end face to be leveled, and is not limited.

[0102] Optionally, the second controller controls the driving end of the vertical driving mechanism 20 (i.e. the leveling presser 10) to descend, including: the second controller controls the driving end of the vertical driving mechanism 20 (i.e. the leveling presser 10) to start and descend at a set descending speed.

[0103] In the embodiments of the present disclosure, the set descending speed and the set descending speed' are not limited in the stage of the leveling presser 10 descending, so as to effectively control the leveling pressure within the preset leveling pressure.

[0104] Optionally, the set descending speed and the set descending speed' are each selected from 0.1 mm / s to 3 mm / s. Optionally, the set descending speed and the set descending speed' are each selected from 0.5 mm / s to 2.5 mm / s. Optionally, the set descending speed and the set descending speed' are each selected from 1 mm / s to 2 mm / s. Optionally, the set descending speed and the set descending speed' are each 0.5 mm / s, 1 mm / s, 1.5 mm / s, 2 mm / s, 2.5 mm / s, 3 mm / s, etc. By controlling the descending speed, the leveling pressure can be ensured and accurate leveling can be achieved after the end surface of the pressure column 12 contacts the end surface to be leveled. The set descending speed and the set descending speed' can be different and are determined according to actual needs.

[0105] In the embodiments of the present disclosure, in the stage of the leveling presser 10 descending without contacting the end surface to be leveled, the descending speed is not limited, and is determined according to whether obvious impact occurs when the end of the pressure column 12 contacts the end surface to be leveled. Optionally, the set descending speed and the set descending speed' are selected from 10 mm / s to 20 mm / s. The specific descending speed is not limited and is determined according to actual needs.

[0106] It can be understood that after the leveling presser 10 completes leveling, the first controller or the second controller is further used to control the leveling presser 10 to ascend to the initial position. Here, the ascending speed is not limited.

[0107] In some embodiments, the leveling device further comprises an operation table (not shown) and a moving support (not shown). The operation table is provided with a workpiece assembly component for assembling workpieces. The moving support is movably arranged on the operation table, and the vertical driving mechanism 20 is arranged on the moving support. In the embodiments, the moving support can drive the leveling presser 10 to move. When leveling operation is not needed, the moving support drives the leveling presser 10 away from above the workpiece, facilitating the assembly of the workpiece. When leveling of the workpiece is needed, the moving support drives the leveling presser 10 to move above the workpiece to level the end surface to be leveled of the workpiece. In this way, the leveling of the workpiece is achieved without moving the workpiece being assembled during the assembly of the workpiece.

[0108] Optionally, the mobile support comprises a mobile structure and the fixed support (refer to the foregoing description of the fixed support), the mobile structure comprises two guide rails, a linear movement module and a driving block, the two guide rails are arranged in parallel on the tabletop of the operation table, and the linear movement module is arranged in parallel with the guide rails on the operation table. The two legs of the two U-shaped supports 40 of the fixed support are respectively arranged in a sliding mode on the two guide rails, and the driving block is connected with the fixed support and arranged in a sliding mode on the linear movement module; the fixed support is driven to move along the guide rails by driving the driving block to move along the guide rod of the linear movement module. The movement of the fixed support drives the vertical driving mechanism 20, the guide limiting mechanism 30 and other structures arranged on the fixed support to move.

[0109] Optionally, the mobile structure further comprises a U-shaped guide belt, one end of the U-shaped guide belt is fixedly arranged on the tabletop of the operation table, and the other end is fixedly arranged on the fixed support; when the fixed support moves, the U-shaped guide belt deforms along with the movement. The stability of the movement is improved.

[0110] The above description and drawings sufficiently illustrate the embodiments of the present disclosure to enable one skilled in the art to practice them. Other embodiments can include structural and other changes. The embodiments represent only a few of the possible changes. Unless explicitly required, individual components and functions are optional, and the order of operations can be changed. Some parts and features of some embodiments can be included or replaced by parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A leveling pressure plate suitable for assembling and leveling nested workpieces, characterized in that, The disc body is provided with a plurality of leveling ring lines; The plurality of leveling ring lines correspond to the end faces of the plurality of layers of the nested structure workpiece; A plurality of pressing column groups are arranged on the disc body, and the plurality of pressing columns of each pressing column group are located on a corresponding one of the leveling ring lines, and the end faces of the plurality of pressing columns of each pressing column group form a leveling surface consistent with the end face to be leveled; In each of two adjacent pressing column groups, the length of the pressing columns of the outer pressing column group protruding from the disc body is equal to or less than the length of the pressing columns of the inner pressing column group protruding from the disc body; In the case where the end faces of the plurality of layers of the nested structure workpiece decrease from the outside to the inside, the height difference between the end faces of the pressing columns in the two adjacent pressing column groups is equal to or greater than a first set value, and the first set value is the height difference between the end faces of the two adjacent layers corresponding to the two adjacent pressing column groups. The pressing columns of the pressing column groups on the two adjacent leveling ring lines are arranged alternately.

2. The leveling platen of claim 1, wherein, In the same pressing column group, the lengths of the plurality of pressing columns protruding from the disc body are the same or different; and / or 3. The leveling platen of claim 1, wherein, The end faces of the pressing columns are flat or curved. The pressing column comprises:

4. The leveling platen of any of claims 1 to 3, wherein, a column body in a solid columnar shape or a hollow columnar shape; a pressing head coaxially arranged at one end of the column body, and the radial dimension of the pressing head is smaller than the radial dimension of the column body; a plug coaxially arranged at the other end of the column body, and the radial dimension of the plug is smaller than the radial dimension of the column body, and the plug is arranged on the disc body.

5. The leveling pressing disc according to claim 4, wherein the pressing column is integrally formed; and / or the pressing head is in a solid columnar shape or a hollow columnar shape; and / or the material of the pressing column is metal. After the pressing column is installed on the disc body, the pressing column is further subjected to finishing treatment.

6. The leveling platen of any of claims 1 to 3, wherein, The plurality of pressing columns are symmetrically arranged on the leveling ring line with the center of the leveling ring line as the symmetric point.

7. The leveling platen of any of claims 1 to 3, wherein, The vertical driving mechanism comprises a driving end that ascends or descends vertically; 8. A straightening device suitable for use in the assembly of a nested structure workpiece, the straightening device comprising: The leveling pressing disc according to any one of claims 1 to 7 is arranged on the driving end and can ascend or descend under the driving of the driving end. Further comprising: a guide limiting mechanism provided with a guide rod that can move vertically, and the guide rod is connected with the leveling pressing disc; during the ascending or descending of the leveling pressing disc under the driving of the driving end of the vertical driving mechanism, the guide rod ascends or descends vertically under the driving of the leveling pressing disc.

9. The levelling device of claim 8, wherein, Further comprising: a fixed support comprising two U-shaped supports and a positioning plate, the open ends of the two U-shaped supports are arranged downward and fixedly, and the positioning plate is fixedly arranged between the crossbeams of the two U-shaped supports, the positioning plate is provided with a first fixing through hole and a plurality of second fixing through holes, the first fixing through hole is used for fixedly arranging the vertical driving mechanism, and the second fixing through holes are used for fixedly arranging the guide limiting mechanism.

10. The levelling device of claim 9, wherein, Further comprising: a first controller electrically connected with the vertical driving mechanism; according to the descending displacement of the driving end of the vertical driving mechanism, the descending of the leveling pressing disc to the leveling position is determined and the vertical driving mechanism is controlled to stop; 11. Levelling device according to any one of claims 8 to 10, characterised in that or the leveling device further comprises: ​ ​ a pressure sensor arranged between the driving end and the leveling disc; a second controller electrically connected with the vertical driving mechanism and the pressure sensor respectively, the second controller being configured to determine that the leveling disc has reached a leveling position according to a pressure value of the pressure sensor and control the vertical driving mechanism to stop.

12. Levelling device according to any one of claims 8 to 10, characterized in that Further comprising: an operation table provided with a workpiece assembly component; a movable support movably arranged on the operation table, and the vertical driving mechanism is arranged on the movable support.

Images