Multi-layer variable-size workpiece positioning and assembling device

Abstract

The utility model provides a multi-layer variable-size workpiece positioning and assembling device which comprises a base, an adjustable supporting bracket, a first positioning mechanism and a second positioning mechanism, a lower plate body of a workpiece can be supported, and the upper plate body and the lower plate body which are stacked can be positioned in two horizontal directions. And the adjustable supporting bracket can adapt to upper and lower plate bodies with different sizes. Wherein the first positioning mechanism comprises one or more sets of first positioning assemblies and is provided with two pressing blocks, the second positioning mechanism comprises one or more sets of second positioning assemblies and is also provided with two pressing blocks, and the outer end faces of the pressing blocks are planes, so that the side face of the upper plate body or the side face of the lower plate body can be better pressed, and better positioning precision is achieved. In addition, the horizontal distance between the outer end faces of the two pressing blocks on the same positioning assembly corresponds to the horizontal distance between the edges of the upper plate body and the lower plate body in the finished workpiece, and therefore the lower plate body and the upper plate body can be accurately positioned at the same time through the multiple positioning assemblies, and the positioning precision is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of multi-layer workpiece processing devices, and particularly relates to a positioning and assembling device for multi-layer variable-size workpieces. Background Technique

[0002] A double-layer different-size workpiece is used in the storage tank of a liquefied natural gas (LNG) ship. This workpiece is formed by overlapping two rectangular plates with different sizes, and both plates have a composite layer structure. When manufacturing the above workpiece, glue needs to be set on the upper surface of one plate, and then the other plate is stacked on it, and the relative positions between the two plates are maintained. Since the size of this double-layer different-size workpiece is very large and the dimensional accuracy requirements are relatively high, when using the manual processing method, the labor burden of workers is very large, and it is not easy to achieve the required dimensional accuracy.

[0003] For this reason, CN212192145U proposes a double-layer different-size box-shaped workpiece overlapping device, which has a support mechanism, an X-axis positioning mechanism, and a Y-axis positioning mechanism. It can support the two plates (boxes) to be overlapped from below and press and position the plates in two directions on the horizontal plane, so as to realize the positioning of the relative positions between the two plates. Cooperating with the transplanting device can greatly reduce the burden on workers.

[0004] However, the above device still has some deficiencies:

[0005] First, in the above device, both the X-axis positioning mechanism and the Y-axis positioning mechanism use pressure rollers to press the sides of the double-layer different-size workpiece. The contact area between the pressure rollers and the workpiece is small, thus affecting the positioning accuracy, and the improvement of the qualified product rate is relatively limited.

[0006] Second, in the above device, the distance between a group of X-axis positioning mechanisms, the distance between a group of Y-axis positioning mechanisms, and the distance between the two support bars in the support mechanism are all manually adjusted by a hand rocker, which is time-consuming and laborious. Especially during production changeover, it will take a lot of time and affect production efficiency. Content of the Utility Model

[0007] The utility model is made to solve the above problems, and the purpose is to provide a positioning and assembling device that can perform more precise assembly positioning on multi-layer different-size workpieces and can be conveniently applied to workpieces of various different sizes. The utility model adopts the following technical solutions:

[0008] The present utility model provides a multi-layer variable-size workpiece positioning and assembling device for positioning and assembling a lower plate body and an upper plate body with different sizes to form a double-layer different-size workpiece. The device has the following technical features: it includes a base; an adjustable support bracket arranged on the base for supporting the lower plate body; a first positioning mechanism for positioning the lower plate body and the upper plate body in a first horizontal direction; and a second positioning mechanism for positioning the lower plate body and the upper plate body in a second horizontal direction perpendicular to the first horizontal direction. Among them, the first positioning mechanism includes one or more groups of first positioning components movably arranged on the base along the first horizontal direction, and the second positioning mechanism includes one or more groups of second positioning components movably arranged on the base along the second horizontal direction. Both the first positioning components and the second positioning components have two pressing blocks respectively for positioning the lower plate body and the upper plate body. The pressing blocks each have an outer end face for pressing the side face of the upper plate body or the side face of the lower plate body. The outer end face is a plane. The horizontal distance between the outer end faces of the two pressing blocks on the same first positioning component or the same second positioning component corresponds to the horizontal distance between the corresponding edges of the upper plate body and the lower plate body in the finished double-layer different-size workpiece.

[0009] The multi-layer variable-size workpiece positioning and assembling device provided by the present utility model may also have the following technical features. Among them, the two pressing blocks of the first positioning component are respectively a first lower plate pressing block and a first upper plate pressing block. The first positioning component further has: a first fixed bracket, and the first lower plate pressing block is arranged on one side of the first fixed bracket; and a first adjusting bracket arranged on the first fixed bracket and having a strip-shaped slot. The first upper plate pressing block is detachably arranged at the strip-shaped slot. The two pressing blocks of the second positioning component are respectively a second lower plate pressing block and a second upper plate pressing block. The second positioning component further has: a second fixed bracket, and the second lower plate pressing block is arranged on one side of the second fixed bracket; and a second adjusting bracket arranged on the second fixed bracket and having a strip-shaped slot. The second upper plate pressing block is detachably arranged at the strip-shaped slot.

[0010] The multi-layer variable-size workpiece positioning and assembling device provided by the present utility model may also have the following technical features. Among them, all the first upper plate pressing blocks and all the second upper plate pressing blocks are arranged at the same height, and all the first lower plate pressing blocks and all the second lower plate pressing blocks are arranged at the same height.

[0011] The multi-layer variable-size workpiece positioning and assembling device provided by the present utility model may further have the following technical feature: the first upper plate pressing block and the second upper plate pressing block are in a cuboid shape, and one surface in the thickness direction is the outer end surface; the first lower plate pressing block and the second lower plate pressing block are in a cylindrical shape, and one surface in the axial direction is the outer end surface.

[0012] The multi-layer variable-size workpiece positioning and assembling device provided by the present utility model may further have the following technical feature: the first positioning component further includes: a first translation component; and a first translation driving motor for driving the first translation component to drive the first positioning component to move. The second positioning component further includes: a second translation component; and a second translation driving motor for driving the second translation component to drive the second positioning component to move.

[0013] The multi-layer variable-size workpiece positioning and assembling device provided by the present utility model may further have the following technical feature: the first translation component includes: two first guide rails arranged on the base and extending along the first horizontal direction; a plurality of first sliders respectively arranged on the two first guide rails; and two first support plates respectively fixed on the plurality of first sliders. The first positioning components are in a group and are respectively arranged on the two first support plates. The second translation component includes: two second guide rails arranged on the first support plate and extending along the second horizontal direction; a plurality of second sliders respectively arranged on the two second guide rails; and four second support plates respectively fixed on the plurality of second sliders. The second positioning components are in two groups and are respectively arranged on the four second support plates.

[0014] The multi-layer variable-size workpiece positioning and assembling device provided by the present utility model may further have the following technical feature: it further includes: at least four pre-positioning cylinders respectively arranged on the four second support plates for jacking up the upper plate body. The adjustable support bracket includes: a bracket seat; and two support bars movably arranged on the bracket seat. When the piston rod of the pre-positioning cylinder extends, the height of the upper end of the piston rod is higher than the height of the upper surface of the lower plate body placed on the support bars.

[0015] The multi-layer variable-size workpiece positioning and assembling device provided by the present utility model may further have the following technical features. The adjustable support bracket further includes: two guide rails disposed on the bracket seat; a plurality of sliders respectively disposed on the two guide rails, and the two support bars are respectively fixed on the plurality of sliders; a plurality of limit posts respectively disposed on the bracket seat and located on both sides of the two support bars; two guide plates, both ends of which are fixed on the bracket seat through the limit posts, and the guide plates pass through through holes in the middle of the support bars; a variable pitch lead screw respectively connected to the first translation driving motor and the two support bars for driving the two support bars to approach or move away from each other; and a lifting cylinder disposed below the bracket seat for lifting the bracket seat.

[0016] The multi-layer variable-size workpiece positioning and assembling device provided by the present utility model may further have the following technical features. It further includes: a first indicating member, one end of which is fixed on one side of one of the first support plates, and the other end is an indicating end located on one side of the base; a first scale member disposed on one side of the base, having one or more scales for cooperating with the indicating end of the first indicating member to indicate the distance between a set of first positioning components; a second indicating member, one end of which is fixed on one side of one of the support bars, and the other end is an indicating end located on one side of the bracket seat; a second scale member disposed on one side of the bracket seat, having one or more scales for cooperating with the indicating end of the second indicating member to indicate the distance between the two support bars.

[0017] The multi-layer variable-size workpiece positioning and assembling device provided by the present utility model may further have the following technical features. The first translation driving motor and the second translation driving motor are both servo motors.

[0018] Functions and effects of the utility model

[0019] The multi-layer variable-size workpiece positioning and assembling device according to the present utility model includes a base, an adjustable support bracket, a first positioning mechanism, and a second positioning mechanism, which can support the lower plate body of the workpiece and position the stacked upper and lower plate bodies in two horizontal directions, and the adjustable support bracket can adapt to upper and lower plate bodies of different sizes. Among them, the first positioning mechanism includes one or more sets of first positioning components, each of which has two pressing blocks, and the second positioning mechanism includes one or more sets of second positioning components, each of which also has two pressing blocks. The outer end surface of the pressing block is a plane, so that the side surface of the upper plate body or the lower plate body can be better pressed, achieving better positioning accuracy. In addition, the horizontal distance between the outer end surfaces of the two pressing blocks on the same positioning component corresponds to the horizontal distance between the edges of the upper and lower plate bodies in the finished workpiece, so that the lower plate body and the upper plate body can be accurately positioned simultaneously by a plurality of positioning components, further improving the positioning accuracy. Brief Description of the Drawings

[0020] Figure 1 is a perspective view of the multi - layer variable - size workpiece positioning and assembling device in an embodiment of the present utility model;

[0021] Figure 2 is a perspective view of different angles of the multi - layer variable - size workpiece positioning and assembling device in an embodiment of the present utility model;

[0022] Figure 3 is a side view of the multi - layer variable - size workpiece positioning and assembling device in an embodiment of the present utility model;

[0023] Figure 4 is Figure 1 an enlarged view of the part inside the middle frame A;

[0024] Figure 5 is Figure 2 an enlarged view of the part inside the middle frame C;

[0025] Figure 6 is Figure 1 an enlarged view of the part inside the middle frame D;

[0026] Figure 7 is a flow chart of positioning and assembling the secondary layer of a double - layer different - size workpiece by the multi - layer variable - size workpiece positioning and assembling device in an embodiment of the present utility model;

[0027] Figure 8 is a flow chart of positioning and assembling a double - layer different - size workpiece by the multi - layer variable - size workpiece positioning and assembling device in an embodiment of the present utility model;

[0028] Figure 9 is a perspective view of a double - layer different - size workpiece in an embodiment of the present utility model;

[0029] Figure 10 is a side view of a double - layer different - size workpiece in an embodiment of the present utility model.

[0030] Reference Numerals:

[0031] Multi-layer variable-size workpiece positioning and assembly device 10; base 11; adjustable support bracket 12; bracket seat 121; guiding component 122; guiding plate 1221; limiting rod 1222; guide rail 1223; slider 1224; support bar 123; support angle bracket 124; support bar variable pitch lead screw 125; lifting cylinder 126; first positioning mechanism 13; first translation component 131; first guide rail 1311; first slider 1312; connecting plate 1313; first support plate 1314; positioning member variable pitch lead screw 1315; first translation driving motor 1316; first positioning component 132; first fixed bracket 1321; first adjusting bracket 1322; first lower plate pressing block 1323; outer end face 1323a; first upper plate pressing block 1324; outer end face 1324a; second positioning mechanism 14; second translation component 141; second guide rail 1411; second slider 1412; second connecting plate 1413; second support plate 1414; second positioning component 142; second fixed bracket 1421; second adjusting bracket 1422; second lower plate pressing block 1423; second upper plate pressing block 1424; linkage limiting component 143; linkage support rod 1431; third guide rail 1432; third slider 1433; adapter plate 1434; first indicating member 1351; first scale member 1352; second indicating member 1361; second scale member 1362; pre-positioning cylinder 137; double-layer different-size workpiece 20; upper plate body 21; lower plate body 22. Detailed implementation mode

[0032] In order to make the technical means, creative features, achieved purposes and functions realized by the present utility model easy to understand, the multi-layer variable-size workpiece positioning and assembly device of the present utility model will be specifically described below in conjunction with embodiments and the accompanying drawings.

[0033] <Embodiment>

[0034] This embodiment provides a multi-layer variable-size workpiece positioning and assembly device for assembling a double-layer different-size workpiece (hereinafter referred to as a double-layer workpiece) for an LNG ship. The structure of the device is designed based on the structure and assembly requirements of the double-layer workpiece. Therefore, the structure of the double-layer workpiece will be briefly described below.

[0035] Figure 9 is the three-dimensional view of the double-layer different-size workpiece in this embodiment, Figure 10 is the side view of the double-layer different-size workpiece in this embodiment.

[0036] As Figure 9 and Figure 10 shown, the double-layer different-size workpiece 20 is integrally stepped, including an upper plate body 21 (secondary layer) and a lower plate body 22 (main layer).

[0037] The upper plate body 21 and the lower plate body 22 are both cuboid-shaped. The length of the lower plate body 22 is less than that of the upper plate body 21, and the width is basically the same as that of the upper plate body 21. The upper plate body 21 and the lower plate body 22 are stacked along their thickness directions, and glue is provided between the two.

[0038] In this embodiment, the upper plate body 21 is a three-layer composite structure. The length of the upper plate body 21 is 3312 mm, and the width is 1200 mm; the length of the lower plate body 22 is 3000 mm, and the width is 1200 mm. The lower plate body 22 is arranged in the middle of the upper plate body 21 in the length direction, that is, the distance from the edges on both sides of the length direction of the lower plate body 22 to the corresponding edges of the upper plate body 21 is 156 mm. During assembly, the upper plate body 21 and the lower plate body 22 need to be positioned to the relative positions shown in the figure.

[0039] The multi-layer variable-size workpiece positioning and assembly device of this embodiment will be described in detail below in combination with the above double-layer workpiece 20.

[0040] Figure 1 is a perspective view of the multi-layer variable-size workpiece positioning and assembly device in this embodiment, Figure 2 is a perspective view of the multi-layer variable-size workpiece positioning and assembly device in this embodiment from different angles, Figure 3 is a side view of the multi-layer variable-size workpiece positioning and assembly device in this embodiment.

[0041] As Figures 1 to 3 shown, the multi-layer variable-size workpiece positioning and assembly device 10 (hereinafter referred to as the positioning and assembly device 10) includes a base 11, an adjustable support bracket 12, a first positioning mechanism 13, and a second positioning mechanism 14.

[0042] The base 11 is composed of multiple metal rods with a square cross-section and is generally a cuboid-shaped frame.

[0043] Figure 4 is Figure 1 an enlarged view of the inner part of the middle frame A.

[0044] As Figure 4 shown, the adjustable support bracket 12 is arranged on the base 11 and includes a bracket seat 121, a guide assembly 122, two support bars 123, two groups of support angle brackets 124, a support bar variable pitch lead screw 125, and two lifting cylinders 126.

[0045] The guide assembly 122 includes two guide plates 1221, multiple limit rods 1222, two guide rails 1223, and multiple sliders 1224. The guide plate 1221 is a flat long strip plate, and the limit rod 1222 is a thin multi-prism. The two ends of the guide plate 1221 are fixed to the bracket seat 121 through the limit rods 1222, and the two guide plates 122 are parallel to each other.

[0046] The support bar 123 includes a metal rod with an I-shaped cross-section and a buffer layer provided on the upper surface of the metal rod. Two strip-shaped holes are formed in the middle of each support bar 123. Two guide plates 1221 respectively pass through the two strip-shaped holes on the support bar 123. Two sliders 1224 are fixed on the lower surface of the support bar 123 and are respectively slidably fitted on the two guide rails 1223. The guide plates and the guide rails play a guiding role in the relative movement of the support bar 123. At the same time, the limiting rods 1222 on both sides play a limiting role in the movement of the support bar 123. The two support bars 123 are parallel to each other and the length direction of the support bar 123 is consistent with the length direction of the base 11. A set (two) of support angle brackets 124 are installed on the outer side of each support bar 123. The support angle bracket 124 is an L-shaped metal bracket. The upper surface of the support bar 123 and the upper surface of the support angle bracket 124 are both flat and basically in the same plane.

[0047] The support bar variable pitch lead screw 125 is arranged below the bracket seat 121 and is respectively connected to the middle parts of the two support bars 123, and is used to drive the two support bars 123 to move so as to adjust the distance between the two. Two jacking cylinders 126 are arranged below the bracket seat 121 and are used to jack up the bracket seat 121 so as to adjust the height of the support bar 123 and the support angle bracket 124. One outer end of the support bar variable pitch lead screw 125 can be connected to a handle, and the operator rotates the handle to adjust the distance between the two support bars 123. Alternatively, the support bar variable pitch lead screw 125 can also be connected to a motor.

[0048] Two jacking cylinders 126 are arranged below the bracket seat 121 and are used to jack up or lower the bracket seat 121 and the support bar 123 and the support angle bracket 124 thereon as a whole.

[0049] Figure 5 Yes Figure 2 An enlarged view of the inner part of the middle frame C.

[0050] As Figure 5 As shown in the figure, the first positioning mechanism 13 is used to position the workpiece on the positioning and assembling device 10 in the x-axis direction (i.e., the length direction of the base 11) in the figure. The first positioning mechanism 13 includes a first translation assembly 131 and two first positioning assemblies 132. The first translation assembly 131 is used to drive the two first positioning assemblies 132 to approach or separate from each other, so that the two first positioning assemblies 132 respectively support two surfaces in the length direction of the workpiece 20, thereby positioning the workpiece 20 in the x-axis direction.

[0051] Among them, the first translation assembly 131 includes two first guide rails 1311, a plurality of first sliders 1312, a plurality of connecting plates 1313, two first support plates 1314, a positioning member variable pitch lead screw 1315 and a first translation drive motor 1316.

[0052] Two first guide rails 1311 are respectively arranged above both sides of the base 131 in the width direction, and the length direction of the guide rail 1311 is consistent with the length direction of the base 131. A plurality of first sliders 1312 are respectively slidably fitted on the two first guide rails 1311. The connecting plate 1313 is a plate member with an L-shaped cross section, and one straight side thereof is fixed to a first slider 1312. The first support plate 1314 is a flat plate, and both ends thereof are respectively fixed to the two first sliders 1312 through the connecting plate 1313. The length direction of the first support plate 1314 is perpendicular to the length direction of the first guide rail 1311. There is a positioning member variable pitch screw 1315, and both ends of the positioning member variable pitch screw 1315 are respectively connected to the middle parts of the lower surfaces of the two first support plates 1314, so as to drive the two first support plates 1314 to move. The first translation driving motor 1316 is used to drive the positioning member variable pitch screw 1315, and the output end of the motor is connected to one end of the positioning member variable pitch screw 1315 through a gearbox. In this embodiment, the first translation driving motor 1316 is a servo motor.

[0053] The first positioning assembly 132 is arranged in the middle of the upper surface of the first support plate 1314. The first positioning assembly 132 includes a first fixing bracket 1321, a first adjusting bracket 1322, a first lower plate pressing block 1323, and a first upper plate pressing block 1324.

[0054] The first fixing bracket 1321 is fixed in the middle of the upper surface of the first support plate 1314. The first fixing bracket 1321 is an overall metal member with a T-shaped cross section, and it includes a mounting plate at the bottom and a fixing plate perpendicular to the mounting plate. The mounting plate is installed on the first support plate 1314 through fasteners. The fixing plate can be approximately regarded as composed of a trapezoidal plate and a rectangular plate with a strip-shaped notch. There is a trapezoidal notch on one side in the width direction of the fixing plate, and through this trapezoidal notch, a space can be provided for the second positioning mechanism 14. The surface direction of the fixing plate is perpendicular to the width direction of the base 11.

[0055] The first adjusting bracket 1322 is fixedly installed at the strip-shaped notch at the upper part of the first fixing bracket 1321. The first adjusting bracket 1322 is in a long and straight strip shape and has a strip-shaped slot hole 1322a extending along its length direction. The length direction of the first adjusting bracket 1322 is consistent with the height direction of the base 11.

[0056] The first lower plate pressing block 1323 is generally cylindrical as a whole, and a plurality of square-bottom shallow grooves are distributed on its side wall, so that the cross-sectional shape in the middle of its axis is a rounded square, which is convenient for disassembling and assembling it with corresponding tools. The first lower plate pressing block 1323 is detachably installed on the upper part of one side of the first fixing bracket 1321 with a trapezoidal notch, and its axis is consistent with the length direction of the base 11. The diameter of the first lower plate pressing block 1323 is basically equal to the thickness of the fixing plate 13212. The outer end face 1323a of the first lower plate pressing block 1323 is a plane perpendicular to its axis, and this outer end face 1323a is used to abut against one side surface in the length direction of the workpiece.

[0057] The first upper plate pressing block 1324 is in the shape of a cuboid block as a whole, and is detachably installed at the strip-shaped slot hole 1322a of the first adjusting bracket 1322 through corresponding fasteners. The outer end face 1324a of the first upper plate pressing block 1324 is a plane perpendicular to the length direction of the base 11, and this outer end face 1324a is used to abut against one side surface in the width direction of the workpiece. The first upper plate pressing block 1324 can be installed at different positions of the strip-shaped slot hole 1322a according to actual needs, that is, it can be installed at different heights. It is also possible to replace the first upper plate pressing block 1324 with different thicknesses according to actual needs to adapt to workpieces of different sizes.

[0058] The horizontal distance between the outer end face 1323a of the first lower plate pressing block 1323 and the outer end face 1324a of the first upper plate pressing block 1324 in the same first positioning assembly 132 is consistent with the horizontal distance between the corresponding edges of the upper plate body 21 and the lower plate body 22 in the finished workpiece, so that the upper and lower plate bodies can be positioned simultaneously.

[0059] The second positioning mechanism 14 is used to position the workpiece on the positioning and assembling device 10 in the y-axis direction (that is, the width direction of the base 11) in the figure. The second positioning mechanism 14 includes two second translation assemblies 141, two groups (four) of second positioning assemblies 142 and two linkage limiting assemblies 143. The second translation assembly 141 is arranged on the upper surface of the first support plate 1314 and is used to drive two second positioning assemblies 142 in a group to approach or move away from each other, so that the two second positioning assemblies 142 respectively support two surfaces in the width direction of the workpiece 20, thereby positioning the workpiece 20 in the y-axis direction.

[0060] The second translation assembly 141 includes two second guide rails 1411, a plurality of second sliders 1412, a plurality of second connecting plates 1413, two second support plates 1414, two second lead screws and two second translation driving motors (not shown in the figure).

[0061] The second guide rail 1411 is disposed on the upper surface of the first support plate 1314 and is closer to the middle of the base 11 than the first positioning assembly 132 on the first support plate 1314. The length direction of the second guide rail 1411 is consistent with the length direction of the first support plate 1314. A plurality of second sliders 1412 are respectively slidably engaged on the two second guide rails 1411. The second connecting plate 1413 is a plate member with an L-shaped cross section and is fixed on the second slider 1412. Both ends of the second support plate 1414 are fixed on a pair of second sliders 1412 through two second connecting plates 1413 respectively. The second translation driving motor is disposed on the second support plate 1414, and the output end of the motor is in transmission connection with the second lead screw. In this embodiment, the second translation driving motor is a servo motor.

[0062] The second positioning assembly 142 is disposed on the upper surface of the second support plate 1414. The second positioning assembly 142 includes a second fixed bracket 1421, a second adjusting bracket 1422, a second lower plate pressing block 1423, and a second upper plate pressing block 1424. Its structure is very similar to that of the first positioning assembly 132, and the same parts will not be repeated here. The difference is only that the second fixed bracket 1421 is in the shape of a rectangular parallelepiped plate with a strip-shaped notch, and the surface directions of the outer end faces of the second lower plate pressing block 1423 and the second upper plate pressing block 1424 mounted on the second fixed bracket 1421 are both perpendicular to the width direction of the base 11.

[0063] The first lower plate pressing blocks 1323 of the two first positioning assemblies 132 and the second lower plate pressing blocks 1423 of the four second positioning assemblies 142 are at the same height; the first upper plate pressing blocks 1324 of the two first positioning assemblies 132 and the second upper plate pressing blocks 1424 of the four second positioning assemblies 142 are at the same height.

[0064] The linkage limiting assembly 143 is used to keep the two second positioning assemblies 142 on the same side moving synchronously. The linkage limiting assembly 143 includes a linkage support rod 1431, two third guide rails 1432, two third sliders 1433, and two adapter plates 1434.

[0065] The length of the linkage support rod 1431 is close to the length of the base 11, and its main body is a metal rod with an I-shaped cross-section. Two third guide rails 1432 are respectively arranged on the same side of the linkage support rod 1431. The length direction of the third guide rail 1432 is consistent with the length direction of the linkage support rod 1431, and the two third guide rails 1432 are aligned in the length direction. Two third sliders 1433 are respectively slidably fitted on the two third guide rails 1432. Two adapter plates 1434 are respectively fixed on the two third sliders 1433 and are respectively fixed to the two second support plates 1414. That is, the two second positioning components 142 on the same side are movably connected through the linkage limit component 143, so that the two second positioning components 142 can move independently on the x-axis but can only move synchronously on the y-axis.

[0066] Figure 6 Yes Figure 1 An enlarged view of the inner part of the middle frame D.

[0067] As Figure 6 shown, a first indicating member 1351 is further installed on one side of one of the first support plates 1314, and a first scale member 1352 is further installed on the corresponding side of the base 11. The first indicating member 1351 is a long strip metal member integrally in a right-angled Z shape. One end of it is fixed to one side of the first support plate 1314, and the other end is a pointed head and is located beside the corresponding side of the base 11. The first scale member 1352 is a block member, and at least one vertical scale is provided on its outer end face. When the pointed head of the first indicating member 1351 is aligned with the scale on the first scale member 1352, it means that the distance between a group of first positioning components 132 is a predetermined value.

[0068] As Figure 4 shown, a second indicating member 1361 is further installed on one side of one of the support bars 123, and a second scale member 1362 is further installed on the corresponding side of the bracket seat 121. The second indicating member 1361 is a bent metal member. One end of it is fixed to one side of the support bar 123, and the other end is a pointed head and is located above one side of the bracket seat 121. The second scale member 1362 is a block member, and at least one horizontal scale is provided on its upper end face. When the pointed head of the second indicating member 1361 is aligned with the scale on the second scale member 1362, it means that the distance between the two support bars 123 is a predetermined value.

[0069] In addition, the four second support plates 1414 are respectively provided with pre-positioning cylinders 137, which are used to lift the upper plate body 21 when pre-positioning it. When the piston rod of the pre-positioning cylinder 137 is in the retracted state, the uppermost end of the piston rod is lower than the plane where the upper surface of the lower plate body 22 placed on the support bar 123 is located; when it is extended, the uppermost end of the piston rod is higher than the plane where the upper surface of the lower plate body 22 placed on the support bar 123 is located. That is, when the piston rod is extended, it can support the four corners of the lower surface of the upper plate body 21, so that the height of the lower surface of the upper plate body 21 is higher than the height of the upper surface of the lower plate body 22, that is, the upper plate body 21 and the lower plate body 22 are not in contact, so that the upper plate body 21 and the lower plate body 22 can be pre-positioned before gluing.

[0070] Each of the above motors can be connected to a corresponding industrial computer and controlled by an operator through a corresponding input device, or automatically controlled according to a predetermined program. The following will take the automatic control according to a predetermined program as an example to specifically explain the corresponding assembly process.

[0071] Furthermore, the positioning and assembling device 10 of the present embodiment can be used for positioning and assembling a sub-layer of a workpiece 20 , and can also be used for positioning and assembling an entire workpiece 20 , which will be described in detail below.

[0072] Figure 7 This is a flow chart of positioning and assembling the secondary layer of a double-layer workpiece of different sizes by the multi-layer variable-size workpiece positioning and assembly device in this embodiment.

[0073] like Figure 7 As shown, the process of assembling the sub-layer (i.e., the upper plate 21) of the workpiece 20 using the positioning and assembling device 10 specifically includes the following steps:

[0074] In step S1-1, the first translation drive motor 1316 drives the first positioning assembly 132 to approach each other until the distance between the outer end surfaces of the two first upper plate clamping blocks 1324 is a predetermined value; the second translation drive motor drives the second positioning assembly 142 to approach each other until the distance between the outer end surfaces of the two second upper plate clamping blocks 1424 is a predetermined value.

[0075] In this embodiment, through step S1-1, the distance between the outer end surfaces of the two first upper plate pressing blocks 1324 is adjusted to 3040 mm, and the distance between the outer end surfaces of the two second upper plate pressing blocks 1424 is adjusted to 1000 mm, and the adjustment basis is that the distance is correspondingly about 10 mm larger than the length and width of the upper plate body 21. The first indicator 1351 and the first scale member 1352 can be used to conveniently control the first positioning assembly 132 to reach the distance.

[0076] In step S1-2, the lifting cylinder 126 drives the two support bars 123 to rise to the middle gear, and the motor drives the positioning member variable pitch screw 1315 to adjust the outer spacing of the two support bars 123 to a predetermined value.

[0077] In this embodiment, the outer spacing of the two support bars 123 is adjusted to 600 mm in step S1-2, and the adjustment basis is not exceeding (990 - 156×2) mm and as wide as possible.

[0078] It can be understood that step S1-1 and step S1-2 can be carried out simultaneously.

[0079] In step S1-3, the transplanting device sequentially stacks and places multiple upper plate body members coated with glue on the two support bars 123.

[0080] In this embodiment, the upper layer plate 21 includes a total of three upper plate body members, which are a plywood board, a foam board, and a reinforced flexible graphite (RSB) board from bottom to top.

[0081] In step S1-4, the first translation drive motor 1316 drives the first positioning assembly 132 to approach each other until the two first upper plate pressing blocks 1324 press the two side surfaces in the length direction of the stacked multiple plate body members; the second translation drive motor drives the second positioning assembly 142 to approach each other until the two second upper plate pressing blocks 1424 press the two side surfaces in the width direction of the stacked multiple plate body members, and maintain for a predetermined time, thereby forming the upper plate body 21.

[0082] In step S1-5, the first translation drive motor 1316 drives the first positioning assembly 132 to move away from each other; the second translation drive motor drives the second positioning assembly 142 to move away from each other.

[0083] In this embodiment, the opened distance is about 10 mm larger than the length and width of the upper plate body 21 respectively.

[0084] In step S1-6, the lifting cylinder 126 drives the two support bars 123 to rise to the highest gear.

[0085] In step S1-7, the transplanting device moves the positioned and assembled upper plate body 21 out of the positioning and assembling device 10.

[0086] In step S1-8, the first translation drive motor 1316 drives the first positioning assembly 132 to reset; the second translation drive motor drives the second positioning assembly 142 to reset; the motor drives the positioning member variable pitch screw 1315 to reset the two support bars 123 for assembling the next upper plate body.

[0087] Figure 8 It is the flow chart of the positioning and assembling of double-layer different-sized workpieces by the multi-layer variable-sized workpiece positioning and assembling device in this embodiment.

[0088] As shown Figure 8 in the figure, the process of assembling the workpiece 20 using the above positioning and assembling device 10 specifically includes the following steps:

[0089] Step S2-1: Replace the first lower plate pressing block 1323 and the second lower plate pressing block 1423 with pressing blocks corresponding to the size of the workpiece to be assembled.

[0090] In this embodiment, according to the size of the upper and lower plate bodies, the lower plate pressing blocks are all replaced with pressing blocks of the 156 mm size range.

[0091] Step S2-2: The first translation drive motor 1316 drives the first positioning assembly 132 to approach each other until the distance between the outer end faces of the two first upper plate pressing blocks 1324 is a predetermined value; the second translation drive motor drives the second positioning assembly 142 to approach each other until the distance between the outer end faces of the two second upper plate pressing blocks 1424 is a predetermined value.

[0092] In this embodiment, through step S2-1, the distance between the outer end faces of the two first upper plate pressing blocks 1324 is 3040 mm, and the distance between the outer end faces of the two second upper plate pressing blocks 1424 is 1000 mm. The adjustment basis is that it is about 10 mm larger than the length and width of the upper plate body 21 respectively.

[0093] Step S2-3: The lifting cylinder 126 drives the two support bars 123 to descend to the lowest gear, and the motor drives the positioning member variable pitch screw 1315 to adjust the outer distance between the two support bars 123 to a predetermined value.

[0094] In this embodiment, through step S1-2, the outer distance between the two support bars 123 is adjusted to 600 mm. The adjustment basis is that it does not exceed the width of the lower plate body 22 and is as wide as possible.

[0095] Step S2-4: The transplanting device sequentially stacks and places a plurality of lower plate body members with glue coated on their upper surfaces on the two support bars 123.

[0096] In this embodiment, the lower plate body 22 includes a total of two lower plate body members, which are a plywood board and a foam board from bottom to top. When placing the lower plate members, the upper plate body 21 is an integrally bonded and cured whole.

[0097] Step S2-5: The pistons of the four pre-positioning cylinders 137 extend.

[0098] Step S2-6: The transplanting device places the upper plate body 21 above the lower plate body 22, and the four pre-positioning cylinders 137 hold the upper plate body 21 to keep it from contacting the lower plate body 22.

[0099] Step S2-7, the first translation driving motor 1316 drives the first positioning assembly 132 to approach each other until the two first lower plate pressing blocks 1323 press against the two side surfaces of the lower plate body 22 in the length direction, and at the same time the two first upper plate pressing blocks 1324 press against the two side surfaces of the upper plate body 22 in the length direction; the second translation driving motor drives the second positioning assembly 142 to approach each other until the two second lower plate pressing blocks 1423 press against the two side surfaces of the lower plate body 22 in the width direction, and at the same time the two second upper plate pressing blocks 1424 press against the two side surfaces of the upper plate body 21 in the width direction.

[0100] After step S2-7, the pre-positioning of the upper and lower plate bodies is completed just before gluing, making the position of the upper plate body more accurate when placed on the lower plate body, and avoiding the problem that glue overflows from one side of the plate body during gluing and positioning due to a large relative position deviation between the two when placing.

[0101] Step S2-8, the first translation driving motor 1316 drives the first positioning assembly 132 to move away from each other; the second translation driving motor drives the second positioning assembly 142 to move away from each other.

[0102] In this embodiment, the opening distance is about 10 mm larger than the length and width of the upper plate body 21 respectively.

[0103] Step S2-9, the piston rods of the four pre-positioning cylinders 137 retract, and the upper plate body 21 is placed on the upper surface of the lower plate body 22.

[0104] Step S2-10, the first translation driving motor 1316 drives the first positioning assembly 132 to approach each other until the two first lower plate pressing blocks 1323 press against the two side surfaces of the lower plate body 22 in the length direction, and at the same time the two first upper plate pressing blocks 1324 press against the two side surfaces of the upper plate body 22 in the length direction; the second translation driving motor drives the second positioning assembly 142 to approach each other until the two second lower plate pressing blocks 1423 press against the two side surfaces of the lower plate body 22 in the width direction, and at the same time the two second upper plate pressing blocks 1424 press against the two side surfaces of the upper plate body 21 in the width direction.

[0105] After step S2-10, the upper plate body 21 is glued to the lower plate body 22 and the relative position between the two is accurately positioned, thus forming the workpiece 20.

[0106] Step S2-11, the lifting cylinder 126 drives the two support bars 123 to rise to the highest gear so that workers can install positioning fixtures at both ends of the workpiece 20.

[0107] The positioning fixture can prevent the upper plate body 21 and the lower plate body 22 from moving relative to each other.

[0108] Step S2-12, the transplanting device moves the workpiece 20 with the installed fixture out of the positioning and assembling device 10.

[0109] Step S2-13, the first translation driving motor 1316 drives the first positioning component 132 to reset; the second translation driving motor drives the second positioning component 142 to reset; the motor drives the positioning variable pitch screw 1315 to reset the two support bars 123 for assembling the next workpiece.

[0110] Functions and effects of the embodiment

[0111] The multi-layer variable-size workpiece positioning and assembling device provided by this embodiment includes a base, an adjustable support bracket, a first positioning mechanism, and a second positioning mechanism, which can support the lower plate body of the workpiece and position the stacked upper and lower plate bodies in two horizontal directions, and can adapt to upper and lower plate bodies of different sizes through the adjustable support bracket. Among them, the first positioning mechanism includes one or more groups of first positioning components, each of which has two pressing blocks, and the second positioning mechanism includes one or more groups of second positioning components, each of which also has two pressing blocks. The outer end surface of the pressing block is a plane, so it can better press the side surface of the upper plate body or the lower plate body to achieve better positioning accuracy. In addition, the horizontal distance between the outer end surfaces of the two pressing blocks on the same positioning component corresponds to the horizontal distance between the edges of the upper and lower plate bodies in the finished workpiece, so the lower plate body and the upper plate body can be accurately positioned simultaneously by multiple positioning components, further improving the positioning accuracy.

[0112] In the embodiment, the upper plate pressing block is installed at the strip-shaped slot hole of the adjusting bracket through fasteners. According to the size of the upper plate body to be assembled and the distance between the edges of the upper and lower plate bodies, the upper plate pressing block can be conveniently adjusted to different heights, and the upper plate pressing block with different thicknesses can also be conveniently replaced, making the production changeover more convenient and efficient.

[0113] Furthermore, the upper plate pressing blocks are all in the shape of a cuboid block, and one surface in the thickness direction is used as the outer end surface for pressing. The lower plate pressing blocks are all in the shape of a cylinder, and one surface in the axial direction is used as the outer end surface. Therefore, the upper plate pressing blocks and the lower plate pressing blocks with a very small volume can achieve a large contact area, and the pressing blocks can be evenly stressed during pressing, and it is not easy to appear skewing and other situations.

[0114] Furthermore, in the embodiment, a servo motor is used to drive multiple positioning components, which can automatically adjust the positioning size and greatly reduce the labor burden of workers.

[0115] Furthermore, the device also has four pre-positioning cylinders, which can lift the upper plate body to be assembled so that it does not contact the lower plate body placed on the support bar, so that the upper and lower plate bodies can be pre-positioned before gluing, and the upper plate body can be placed on the lower plate body at a more accurate position, thus avoiding the problem that the glue overflows from one side due to the large relative position deviation between the two, which is more conducive to realizing automated processing.

[0116] Furthermore, the device also includes a first indicating member and a first scale member, which can cooperate to indicate the distance between a set of first positioning components, and also includes a second indicating member and a second scale member, which can cooperate to indicate the distance between two support bars. Therefore, it enables the operator to more conveniently adjust the above distances, or enables the operator to conveniently check and confirm after the distances are automatically adjusted, which is conducive to further improving the positioning accuracy of the workpiece.

[0117] As shown in the embodiment, the positioning and assembling device can be used to assemble multi-layer upper plate body components into a sub-layer (upper plate body), or can also be used to assemble the upper plate body and the lower plate body into a double-layer workpiece with different sizes.

[0118] The above embodiments are only used to illustrate the specific implementation manners of the present invention, and the present invention is not limited to the description scope of the above embodiments. Those skilled in the art should understand that the present invention is not restricted by the above embodiments. What is described in the above embodiments and the specification only explains the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

[0119] For example, in the above embodiment, the positioning and assembling device 10 is used to position and assemble a double-layer workpiece with different sizes for an LNG ship. In an alternative solution, the device can also be used in the same way to position and assemble double-layer workpieces with different sizes for other purposes, as long as the workpiece has a similar structure.

[0120] In the above embodiment, the positioning and assembling device 10 is used to position and assemble the upper and lower plate bodies, and the upper and lower plate bodies are glued together with glue. In an alternative solution, the device can also be used in the same way to position and assemble the upper and lower plate bodies combined by other means, such as by screws, etc.

[0121] In the above embodiment, the positioning and assembling device 10 is used to position and assemble a double-layer workpiece with different sizes. Correspondingly, both the first positioning component 132 and the second positioning component 142 have two pressing blocks, which are respectively used to press the upper plate body and the lower plate body of the workpiece. In an alternative solution, the positioning and assembling device 10 can also be used in the same way to position and assemble triple-layer or more workpieces with different sizes, and the first positioning component 132 and the second positioning component 142 are correspondingly equipped with more pressing blocks.

[0122] In the above embodiments, all the lower plate pressing blocks are set at the same height, and all the upper plate pressing blocks are set at the same height. In an alternative solution, when there is sufficient margin in the thickness of the upper and lower plate bodies of the double-layer workpieces with different sizes, different groups of lower plate pressing blocks and upper plate pressing blocks can also be set at different heights.

[0123] In the above embodiments, there are two (one group) of the first positioning components 132 and four (two groups) of the second positioning components 142. In an alternative solution, according to the size of the workpiece, there can also be more groups of the first positioning components 132 and the second positioning components 142.

Claims

1. A multi-layer variable-size workpiece positioning and assembly device, used for positioning and assembling lower plates and upper plates of different sizes to form double-layer workpieces of different sizes, characterized in that: include: Base; An adjustable support bracket, disposed on the base, for supporting the lower plate; A first positioning mechanism, used for positioning the lower plate body and the upper plate body in a first horizontal direction; as well as A second positioning mechanism is used to position the lower plate and the upper plate in a second horizontal direction perpendicular to the first horizontal direction, Wherein, the first positioning mechanism includes one or more first positioning components movably arranged on the base along the first horizontal direction, The second positioning mechanism includes one or more second positioning components movably arranged on the base along the second horizontal direction. The first positioning assembly and the second positioning assembly each have two pressing blocks for positioning the lower plate body and the upper plate body respectively. The pressing blocks all have an outer end surface for pressing the side surface of the upper plate body or the side surface of the lower plate body, and the outer end surface is a plane. The horizontal spacing between the outer end surfaces of the two clamping blocks on the same first positioning assembly or the same second positioning assembly corresponds to the horizontal spacing between the edge of the upper plate body and the corresponding edge of the lower plate body in the finished double-layer different-sized workpiece.

2. The multi-layer variable-size workpiece positioning and assembly device according to claim 1, Features: in, The two pressing blocks of the first positioning assembly are respectively a first lower plate pressing block and a first upper plate pressing block. The first positioning component also has: a first fixing bracket, wherein the first lower plate pressing block is disposed on one side of the first fixing bracket; and The first adjusting bracket is arranged on the first fixing bracket and has a strip-shaped slot hole, and the first upper plate pressing block is detachably arranged at the strip-shaped slot hole. The two pressing blocks of the second positioning assembly are respectively a second lower plate pressing block and a second upper plate pressing block. The second positioning component also has: a second fixing bracket, wherein the second lower plate pressing block is arranged on one side of the second fixing bracket; as well as The second adjusting bracket is arranged on the second fixing bracket and has a strip-shaped slot hole, and the second upper plate pressing block is detachably arranged at the strip-shaped slot hole.

3. The multi-layer variable-size workpiece positioning and assembly device according to claim 2 is characterized in that: in, All of the first upper plate pressing blocks and all of the second upper plate pressing blocks are arranged at the same height, All of the first lower plate pressing blocks and all of the second lower plate pressing blocks are arranged at the same height.

4. The multi-layer variable-size workpiece positioning and assembly device according to claim 2, characterized in that: in, The first upper plate pressing block and the second upper plate pressing block are in a rectangular parallelepiped shape, and one surface in the thickness direction thereof is the outer end surface. The first lower plate pressing block and the second lower plate pressing block are cylindrical, and one axial surface thereof is the outer end surface.

5. The multi-layer variable-size workpiece positioning and assembly device according to claim 2, characterized in that: in, The first positioning component also has: a first translation assembly; and A first translation driving motor is used to drive the first translation assembly to drive the first positioning assembly to move, The second positioning component also has: a second translation assembly; and The second translation driving motor is used to drive the second translation assembly to drive the second positioning assembly to move.

6. The multi-layer variable-size workpiece positioning and assembly device according to claim 5, Features: in, The first translation assembly comprises: Two first guide rails, arranged on the base and extending along the first horizontal direction; a plurality of first sliding blocks, respectively disposed on the two first guide rails; and Two first support plates are respectively fixed on the plurality of first sliding blocks, The first positioning components are a group, which are respectively arranged on the two first support plates. The second translation component comprises: Two second guide rails, disposed on the first support plate and extending along the second horizontal direction; a plurality of second sliding blocks, respectively disposed on the two second guide rails; and Four second support plates are respectively fixed on the plurality of second sliding blocks, The second positioning components are divided into two groups, which are respectively arranged on the four second supporting plates.

7. The multi-layer variable-size workpiece positioning and assembly device according to claim 6, characterized in that: Also includes: At least four pre-positioning cylinders are respectively arranged on the four second support plates and are used to lift the upper plate body. Wherein, the adjustable support bracket comprises: a bracket seat; and Two support bars are movably arranged on the bracket seat, When the piston rod of the pre-positioning cylinder is extended, the height of the upper end of the piston rod is higher than the height of the upper surface of the lower plate body placed on the support bar.

8. The multi-layer variable-size workpiece positioning and assembly device according to claim 7, Features: Wherein, the adjustable support bracket further comprises: Two guide rails are arranged on the bracket seat; A plurality of sliders are respectively arranged on the two guide rails, and the two support bars are respectively fixed on the plurality of sliders; A plurality of limiting columns are respectively arranged on the bracket seat and located on both sides of the two support bars; Two guide plates, both ends of which are fixed to the bracket seat through the limiting columns, and the guide plates pass through the through holes in the middle of the support bars; a variable pitch lead screw, connected to the first translation drive motor and the two support bars respectively, and used for driving the two support bars to move closer to or away from each other; and A lifting cylinder is arranged below the bracket seat and is used for lifting the bracket seat.

9. The multi-layer variable-size workpiece positioning and assembly device according to claim 7, characterized in that: Also includes: A first indicator, one end of which is fixed on one side of the first support plate, and the other end of which is an indicator end located on one side of the base; A first scale member, disposed on one side of the base, having one or more scales, and used to cooperate with the indicating end of the first indicating member to indicate the spacing between the group of first positioning components; a second indicator member, one end of which is fixed on one side of one of the support bars and the other end of which is an indicator end located on one side of the bracket seat; The second scale member is arranged on one side of the bracket seat and has one or more scales, which are used to cooperate with the indicating end of the second indicating member to indicate the distance between the two support bars.

10. The multi-layer variable-size workpiece positioning and assembly device according to claim 5, characterized in that: in, The first translation drive motor and the second translation drive motor are both servo motors.

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