Positioning device and assembling platform comprising same

Abstract

The utility model provides a positioning device and an assembling platform comprising the same, the positioning device comprises a stacking bottom plate, stacking elements are installed on the stacking bottom plate layer by layer, at least two measurement marks are arranged on the stacking bottom plate and / or an installation platform outside the stacking bottom plate at intervals, and the measurement marks are used for being matched with measurement equipment arranged above the installation platform. Determining reference space coordinate information of the stacked bottom plate; the positioning device further comprises a guide rod, and the guide rod penetrates through the stacking bottom plate or the stacking element of the installed layer and the stacking element to be assembled so as to determine relative space coordinate information of the stacking element to be assembled relative to the stacking bottom plate. According to the positioning device and the assembly platform comprising the positioning device, under the condition that stacked elements are stacked layer by layer, the positioning accuracy, reliability and consistency of a multi-layer assembly structure are improved, and the assembly efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of product assembly, in particular to a positioning device and an assembly platform comprising the same. Background Art

[0002] As a neutron moderator, graphite plays an important role in nuclear reactors. In the installation of nuclear reactors, graphite is used as a core element and is assembled layer by layer on the core bottom plate. The core holes of the upper and lower layers of graphite are interconnected to form molten salt channels for injecting molten salt.

[0003] During the traditional installation of graphite components, due to the heavy weight of the core graphite components and the high matching accuracy required for the molten salt channels, there is a lack of precise positioning during the installation of the graphite components, which can easily lead to the offset of the molten salt channels between the layers of graphite. Therefore, more reliable and accurate positioning is required.

[0004] In the prior art, during the automated installation of columnar graphite, visual sensors are usually used for positioning. However, the black surface of the entire graphite component causes unclear boundary features, which increases the sensor's misrecognition rate and causes assembly accidents.

[0005] Therefore, in the prior art, when assembling multi-layer products such as graphite, there is a lack of effective positioning technology means that can reliably and accurately position the upper and lower layers so that they remain consistent, which seriously affects the quality and efficiency of product assembly. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the defects in the prior art that it is difficult to accurately position, and the positioning reliability and consistency are poor when assembling multi-layer products, and to provide a positioning device and an assembly platform including the same.

[0007] The utility model solves the above technical problems through the following technical solutions:

[0008] A positioning device, the positioning device comprising a stacking base plate, stacking elements are mounted on the stacking base plate layer by layer, at least two measurement marks are arranged on the stacking base plate and / or on a mounting platform outside the stacking base plate, and the measurement marks are used to cooperate with a measuring device arranged above the mounting platform to determine reference space coordinate information of the stacking base plate;

[0009] The positioning device further comprises a guide rod, which passes through the stacking base plate or the stacking elements of the installed layer and the stacking elements to be assembled, so as to determine the relative spatial coordinate information of the stacking elements to be assembled relative to the stacking base plate.

[0010] In this solution, the positioning device uses the measurement mark set on the stacking bottom plate and / or the installation platform outside the stacking bottom plate, and uses the fixed measurement mark as the measurement reference for identifying the reference space coordinate information. When the stacking elements are stacked layer by layer, no matter whether the stacking bottom plate is completely covered or blocked by other obstructions, there is always a measurement mark that can be identified by the measuring device, which reduces the error rate of positioning identification, thereby improving the positioning accuracy and reliability. The guide rod passes through the stacking bottom plate or the stacking elements of the installed layer, as well as the stacking elements to be assembled, and accurately determines the relative space coordinate information of the stacking elements relative to the stacking bottom plate in a penetrating manner. In addition, this penetrating guide positioning method makes the channel formed by the core holes of each layer of stacking elements not easy to deviate, has good consistency and small error, thereby improving the accuracy and reliability of positioning, and can avoid collision with the stacking elements to affect the assembly quality; the reference space coordinate information is combined with the relative space coordinate information, so as to obtain the target space coordinate information of each layer of stacking elements relative to the stacking bottom plate or the installation platform. Therefore, the positioning device improves the positioning accuracy, reliability and consistency of the multi-layer assembly structure through the above-mentioned setting, and improves the assembly efficiency.

[0011] Preferably, the stacking bottom plate is arranged above the mounting platform and is mounted on the mounting platform through at least two spaced positioning members, and the mounting platform is spaced and surrounded by at least two measurement marks in an area outside the stacking bottom plate;

[0012] The guide rod is arranged below the mounting platform and passes through the stacking bottom plate or the stacking elements of the mounted layer and the stacking elements to be assembled in sequence from bottom to top from the central through hole area of ​​the mounting platform.

[0013] In this solution, the stacking bottom plate is installed on the mounting platform through a positioning piece, and the stacking bottom plate is fixed on the mounting platform; when the positioning piece is not blocked, the positioning piece can also be used as a measurement mark; on this basis, the above-mentioned measurement mark is set in the area outside the stacking bottom plate through the mounting platform, which further ensures that the test mark with a certain position can be identified, and improves the reliability of positioning and identification. The guide rod is set below the mounting platform, and passes through the stacking bottom plate and the stacking elements of each layer from the bottom in turn, determines the target space coordinate information of the stacking element relative to the stacking bottom plate and the mounting platform, and also ensures the consistency of the positioning of the upper and lower stacking elements.

[0014] Preferably, each of the measurement marks is arranged on the protruding structure in a one-to-one correspondence, a guide structure is provided on the inner side of the protruding structure close to the stacking bottom plate, and the stacking bottom plate is clamped in a plurality of the guide structures arranged in a ring.

[0015] In this solution, the positioning device clamps the stacking base plate therein through the guide structure provided above, guides the assembly of the stacking base plate, makes it easy to align the position on the installation platform, and is not easy to deviate.

[0016] Preferably, at least two leveling pads are spaced apart and arranged in a circle on the mounting platform, the leveling pads are arranged on the lower surface of the stacking bottom plate, and the leveling pads are used to adjust the height of the stacking bottom plate in the vertical direction.

[0017] In this solution, the height of the stacking bottom plate can be adjusted at different positions by means of the above-mentioned leveling pads so as to keep the whole stacking bottom plate level.

[0018] Preferably, the positioning device further comprises a guiding device provided below the stacking bottom plate;

[0019] The guide device includes a lifting drive, a lifting platform and at least one guide rod, wherein the guide rod is vertically arranged on the lifting platform, and the lifting drive is connected to the lifting platform and drives the lifting platform to drive the guide rod to vertically lift and lower, and sequentially pass through the stacking bottom plate or the stacking elements of the installed layer, and the stacking elements to be assembled.

[0020] In this solution, the positioning device realizes automatic lifting and guiding through the above-mentioned guiding device, wherein the lifting platform is driven by the lifting driver and drives the guide rod to lift and lower, which is relatively stable and conducive to guiding stability.

[0021] Preferably, the guide device further comprises a guide fixing plate, the guide fixing plate is arranged parallel to the bottom of the mounting platform, and the stacking bottom plate is arranged above the mounting platform;

[0022] The guide rod passes through the guide fixing plate, the stacking bottom plate or the stacking element of the installed layer, and the stacking element to be assembled in sequence from bottom to top in the central through hole area of ​​the mounting platform.

[0023] In the present solution, the guide rod passes through the stacking base plate and the guide fixing plate which are parallel to each other and located above and below the mounting platform, thereby limiting the rod body of the guide rod at two different upper and lower positions, thereby reducing the length of the free end of the guide rod (i.e., the protruding part of the guide rod used to guide the stacking elements), improving the stability of the guide rod when it is lifted or lowered, and preventing it from swaying or shaking, which is beneficial to the accuracy of the guidance and reduces the processing accuracy requirements for the guide rod and related components.

[0024] Preferably, a positioning piece is provided on the mounting platform, and two ends of the positioning piece are respectively connected to the stacking bottom plate and the guide fixing plate;

[0025] The guide fixing plate is used to clamp a guide sleeve in the guide hole through which the guide rod passes, and the guide rod freely passes through the inner hole of the guide sleeve.

[0026] In this solution, the stacking base plate and the guide fixing plate are connected to the mounting platform through the positioning piece, which enhances the overall structural stability, thereby facilitating the guiding stability and ensuring the accuracy between the guide rod and the stacking base plate. The guide sleeve facilitates the guide rod to pass through the guide fixing plate, and also facilitates the adjustment of the radial clearance between the guide rod and the guide hole, so that it matches the radial clearance at other positions on the guide rod, thereby achieving a better guiding effect.

[0027] Preferably, the lifting platform is provided with a plurality of guide rods, the stacking base plate is provided with a plurality of annular arrangement units distributed from the center to the outside, each of the annular arrangement units includes a plurality of mounting holes, at least one mounting hole in each of the annular arrangement units is provided with a guide rod, and the guide rod passes through the mounting hole and the core hole of the stacking element in sequence.

[0028] In this solution, by cooperating with the guide rod through the mounting holes in each annular arrangement unit, it is ensured that each annular arrangement unit from the inside to the outside on the stacking base plate has at least one mounting hole limited by the guide rod and accurately positioned, and can be used as a positioning reference to assemble other stacking elements, thereby achieving accurate positioning of each stacking element.

[0029] Preferably, a plurality of the guide rods are distributed in a straight line on the lifting platform, and freely penetrate the mounting holes provided in a straight line from the center to the outside of the stacking bottom plate.

[0030] In this solution, several guide rods are distributed in a straight line and pass through the mounting holes in a straight line from the center to the outside of the stacking base plate. While ensuring that at least one mounting hole of each annular arrangement unit is limited by the guide rod, the number of guide rods will not be too large, thereby making the guide device structure simple and reliable.

[0031] An assembly platform comprises the positioning device as described above.

[0032] In the present solution, the assembly platform uses the above-mentioned positioning device, so that when the stacked elements are stacked layer by layer, no matter whether the stacking bottom plate is completely covered or blocked by other obstructions, there are always measurement marks that can be identified by the measuring equipment, thereby improving the positioning accuracy and reliability; the relative spatial coordinate information of the stacking elements relative to the stacking bottom plate is accurately determined by the guide rod in a penetrating manner, and this guiding positioning method is not easily disturbed and has a small error; thereby improving the positioning accuracy, reliability and consistency of the multi-layer assembly structure and improving the assembly efficiency.

[0033] The positive progressive effect of the utility model is that: when the stacking elements are stacked layer by layer, the positioning device and the assembly platform including the same can always have measurement marks that can be recognized by the measuring equipment, regardless of whether the stacking bottom plate is completely covered or blocked by other obstructions, thereby improving the positioning accuracy and reliability; the relative spatial coordinate information of the stacking elements relative to the stacking bottom plate is accurately determined by the guide rod in a penetrating manner, so that the channels formed by the core holes of the stacking elements in each layer are not easy to deviate, have good consistency and small errors, thereby improving the accuracy and reliability of positioning, and avoiding collisions with the stacking elements to affect the assembly quality; thereby improving the positioning accuracy, reliability and consistency of the multi-layer assembly structure, and improving the assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the installation structure of the installation platform of the embodiment of the utility model in a factory building.

[0035] Figure 2 It is a side sectional view of the installation platform of the embodiment of the utility model.

[0036] Figure 3 It is a schematic diagram of the three-dimensional structure of the installation platform of the embodiment of the utility model.

[0037] Figure 4 It is a schematic diagram of the partial structure of the installation platform of the embodiment of the utility model.

[0038] Description of reference numerals:

[0039] Installation platform 1

[0040] Stacking base plate 2

[0041] Positioning hole 21

[0042] Ring arrangement unit 22

[0043] Mounting hole 23

[0044] Stacking element 3

[0045] Positioning piece 4

[0046] Prominent structure 5

[0047] Measurement mark 6

[0048] Guide structure 7

[0049] Leveling pad 8

[0050] Lifting drive 10

[0051] Guide rod 11

[0052] Lifting platform 12

[0053] Guide Rail 121

[0054] Rack 122

[0055] Guide fixing plate 13

[0056] Guide hole 131

[0057] Guide sleeve 14

[0058] Controller 15

[0059] Factory foundation pit 16

[0060] Factory floor 17 DETAILED DESCRIPTION

[0061] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0062] The present embodiment provides a positioning device that can be used for positioning the assembly of multi-layer products. The positioning device of the present embodiment is specifically used for the installation of a nuclear reactor to position the assembly of the stacking element 3 used in the nuclear reactor. The stacking element 3 is specifically a cylindrical graphite rod. Graphite is a common neutron moderator and plays an important role in nuclear reactors. The graphite rod is processed with a through core hole for easy guidance and positioning. However, the stacking element 3 is not limited to graphite. Depending on the application of nuclear reactors or other different fields, the stacking element 3 can also be other materials besides graphite. During assembly, the stacking element 3 is assembled layer by layer on the stacking base plate 2.

[0063] like Figure 1As shown, the positioning device includes a stacking base plate 2, and the stacking elements 3 are installed layer by layer on the stacking base plate 2. At least two measurement marks 6 are arranged on the stacking base plate 2 and / or on the mounting platform 1 outside the stacking base plate 2. The measurement marks 6 are used to cooperate with the measuring equipment arranged above the mounting platform 1 to determine the reference space coordinate information of the stacking base plate 2; the positioning device also includes a guide rod 11, and the guide rod 11 passes through the stacking base plate 2 or the stacking elements 3 of the installed layer, and the stacking elements 3 to be assembled, so as to determine the relative space coordinate information of the stacking elements 3 to be assembled relative to the stacking base plate 2. For example, there are three layers in total of the stacking elements 3 to be assembled. When installing the first layer, the guide rod 11 passes through the stacking base plate 2 and the stacking elements 3 to be assembled, thereby completing the assembly of the first layer of the stacking elements 3; then the second layer is installed. At this time, the first layer is an installed layer relative to the second layer to be assembled, that is, a layer that has been installed. The guide rod 11 passes through the stacking base plate 2 and the stacking elements 3 of the first layer, as well as the stacking elements 3 of the second layer to be assembled, thereby completing the assembly of the second layer of the stacking elements 3; finally, the third layer is installed. At this time, the first layer and the second layer are installed layers relative to the third layer to be assembled. The guide rod 11 passes through the stacking base plate 2 and the stacking elements 3 of the first and second layers, as well as the stacking elements 3 of the third layer to be assembled, thereby completing the assembly of the stacking elements 3 of the third layer.

[0064] Specifically, Figure 1 As shown, during the installation of the nuclear reactor, the installation platform 1 is built on the plant floor 17, and below the plant floor 17 is the plant foundation pit 16, which is used to accommodate the guide device for guiding the stacking element 3. The stacking bottom plate 2 is arranged above the installation platform 1, and three positioning holes 21 are arranged on the stacking bottom plate 2 and are installed on the installation platform 1 through three positioning members 4 arranged at intervals. The installation platform 1 is provided with three measurement marks 6 at intervals and in a circle in the area outside the stacking bottom plate 2. On the one hand, the positioning members 4 serve as connecting members to fix the stacking bottom plate 2 on the installation platform 1; on the other hand, when the positioning members 4 are not blocked or the stacked graphite is not difficult to identify due to the dark surface gloss, the positioning members 4 can also serve as the measurement mark 6. When the positioning members 4 are blocked or the stacking bottom plate 2 is completely covered and cannot be identified by setting the measurement mark 6 on the stacking bottom plate 2, the measurement mark 6 is set in the area outside the stacking bottom plate 2 by the installation platform 1, which further ensures that the test mark with a certain position can be identified, thereby improving the reliability of positioning identification. Therefore, according to different application requirements, the measurement mark 6 can be on the stacking base plate 2, or on the mounting platform 1 outside the stacking base plate 2, or the stacking base plate 2 and the mounting platform 1 have the measurement mark 6, or the two are combined. In other embodiments, according to the positioning effect requirements, the number and shape of the positioning member 4 and the measurement mark 6 can be adjusted accordingly.

[0065] The guide rod 11 is arranged below the mounting platform 1, and sequentially passes through the stacking base plate 2 or the stacking elements 3 of the installed layer, and the stacking elements 3 to be assembled from the central through hole area of ​​the mounting platform 1 from bottom to top, thereby determining the target spatial coordinate information of the stacking elements 3 relative to the stacking base plate 2 and the mounting platform 1, and at the same time making the channel formed by the core holes of each layer of the stacking elements 3 not easy to deviate, ensuring the consistency of the positioning of the upper and lower layers of the stacking elements 3. In other embodiments, there are various forms of guidance, and the guiding direction can also be changed accordingly according to the needs of the spatial layout or assembly operation, but the effect is not as good as the method of passing from bottom to top in this embodiment, and in the process of passing the guide rod 11, it is better to avoid collision with the stacking elements 3 and affect the assembly quality.

[0066] The positioning device uses the measurement mark 6 set on the stacking base plate 2 and / or the installation platform 1 outside the stacking base plate 2, and uses the fixed measurement mark 6 as the measurement reference for identifying the reference space coordinate information. When the stacking elements 3 are stacked layer by layer, no matter whether the stacking base plate 2 is completely covered or blocked by other obstructions, there is always a measurement mark 6 that can be identified by the measuring device, which reduces the error rate of positioning identification and ensures that the reference space coordinate information of the stacking base plate 2 is accurate, thereby improving the positioning accuracy and reliability. The guide rod 11 passes through the stacking base plate 2 or the stacking elements 3 of the installed layer, as well as the stacking elements 3 to be assembled, and accurately determines the relative space coordinate information of the stacking elements 3 relative to the stacking base plate 2 in a penetration manner. This penetration guide positioning method makes the channel formed by the core holes of each layer of the stacking elements 3 not easy to deviate, has good consistency, and small error, thereby improving the accuracy and reliability of positioning, and can avoid collision with the stacking elements to affect the assembly quality; the reference space coordinate information is combined with the relative space coordinate information, so as to obtain the target space coordinate information of each layer of the stacking elements 3 relative to the stacking base plate 2 or the installation platform 1. Therefore, the positioning device improves the positioning accuracy, reliability and consistency of the multi-layer assembly structure through the above-mentioned arrangement, and improves the assembly efficiency.

[0067] Among them, Figure 1 As shown, each measurement mark 6 is arranged on the protruding structure 5 in a one-to-one correspondence, and a guide structure 7 is arranged on the inner side of the protruding structure 5 close to the stacking bottom plate 2, and the stacking bottom plate 2 is clamped in the plurality of ring-arranged guide structures 7. The positioning device clamps the stacking bottom plate 2 in the guide structure 7, guides the assembly of the stacking bottom plate 2, and makes it easy to align the position on the installation platform 1 and not easy to deviate.

[0068] Among them, Figure 1As shown, three leveling pads 8 are arranged in a circle at intervals on the mounting platform 1. The leveling pads 8 are arranged on the lower surface of the stacking base plate 2. The leveling pads 8 are used to adjust the height of the stacking base plate 2 in the vertical direction. Through the leveling pads 8, the height of the stacking base plate 2 can be adjusted at different positions to keep it level as a whole. In other embodiments, there are multiple leveling methods, and different leveling technical means can be selected according to the needs of structural coordination. The leveling pads 8 used in this embodiment are simple in structure and easy to operate; in order to meet basic leveling needs, at least two leveling pads are required, which are arranged at different positions.

[0069] Among them, Figure 1 The positioning device also includes a guide device arranged below the stacking bottom plate 2, the guide device includes a lifting drive 10, a lifting platform 12 and at least one guide rod 11, the lifting drive 10 is specifically a driving motor, which is installed below the lifting platform 12, the guide rod 11 is vertically arranged on the lifting platform 12, and a guide rail 121 is also installed on the lifting platform 12, and a rack 122 is installed on the side of the guide rail 121. The gear at the output end of the lifting drive 10 drives the lifting platform 12 to slide up and down along the guide rail 121 by cooperating with the rack 122, so as to drive the guide rod 11 to vertically lift and lower, and sequentially pass through the stacking bottom plate 2 or the stacking elements 3 of the installed layer, and the stacking elements 3 to be assembled. The positioning device realizes automatic lifting and guiding through the guide device, wherein the guide rod 11 is driven to lift and lower by the lifting platform 12, which is relatively stable and conducive to guiding stability. In other embodiments, there are various forms of guidance, and manual lifting or other automatic lifting structures can be adopted, without being limited to the guide device structure of this embodiment.

[0070] Among them, Figure 1 , Figure 2 and Figure 4 As shown, the guide device further includes a guide fixing plate 13, which is arranged parallel to the bottom of the mounting platform 1, and a controller 15 is arranged on the guide fixing plate 13 for controlling the lifting action of the guide device; the stacking bottom plate 2 is arranged above the mounting platform 1; and the guide rod 11 passes through the guide fixing plate 13, the stacking bottom plate 2 or the stacking element 3 of the installed layer, and the stacking element 3 to be assembled from the central through hole area of ​​the mounting platform 1 from bottom to top in sequence. The guide rod 11 passes through the stacking bottom plate 2 and the guide fixing plate 13 which are parallel to each other and located above and below the mounting platform 1, and limits the rod body of the guide rod 11 at two different upper and lower positions, thereby reducing the length of the free end of the guide rod 11 (i.e., the protruding part of the guide rod 11 used to guide the stacking element 3), improving the stability of the guide rod 11 when it is lifted and lowered, and not easy to swing or shake, which is conducive to the accuracy of guidance and reduces the processing accuracy requirements for the guide rod 11 and related components.

[0071] Among them, Figure 4As shown, the two ends of the positioning member 4 are respectively connected to the stacking base plate 2 and the guide fixing plate 13; and / or, the guide fixing plate 13 is used for the guide rod 11 to pass through the guide hole 131 to be provided with a guide sleeve 14, and the guide rod 11 freely passes through the inner hole of the guide sleeve 14.

[0072] In other embodiments, there are many ways to connect the stacking base plate 2 and the guide fixing plate 13. They can also be connected by components or structures other than the positioning member 4, or the stacking base plate 2 and the guide fixing plate 13 can be connected separately. However, it is not as good as the present embodiment to connect the stacking base plate 2 and the guide fixing plate 13 into an integrated structure through the same positioning member 4, which enhances the stability of the overall structure, thereby facilitating the guiding stability and ensuring the accuracy between the guide rod 11 and the stacking base plate 2. In the case where the processing accuracy of the guide hole 131 on the guide fixing plate 13 is sufficient, the guide sleeve 14 may not be required. However, the present embodiment uses the guide sleeve 14, which, on the one hand, facilitates the guide rod 11 to pass through the guide fixing plate 13, and on the other hand, facilitates the adjustment of the radial clearance between the guide rod 11 and the guide hole 131, so that it matches the radial clearance at other positions on the guide rod 11, thereby achieving a better guiding effect.

[0073] Among them, Figure 3 As shown, a plurality of guide rods 11 are provided on the lifting platform 12, and a plurality of annular arrangement units 22 are distributed from the center to the outside of the stacking base plate 2, each annular arrangement unit 22 includes a plurality of mounting holes 23, and at least one mounting hole 23 in each annular arrangement unit 22 is configured with a guide rod 11 passing through it.

[0074] The number of guide rods 11 can be adjusted as needed. For example, when assembling the stacking element 3 on each annular arrangement unit 22, according to different assembly sequences, several guide rods 11 can be configured on the mounting holes 23 at different positions, or even each mounting hole 23 is configured with a guide rod 11. However, in order not to increase the complexity and cost of the structure, at least one mounting hole 23 in each annular arrangement unit 22 is configured with a guide rod 11. This ensures that at least one mounting hole 23 of each annular arrangement unit 22 from the inside to the outside of the stacking base plate 2 is limited by the guide rod 11 and accurately positioned, and can be used as a positioning reference to assemble other stacking elements 3, thereby achieving accurate positioning of each stacking element 3.

[0075] Furthermore, a plurality of guide rods 11 are distributed in a straight line on the lifting platform 12, and freely penetrate the mounting holes 23 arranged in a straight line from the center to the outside of the stacking base plate 2. Such an arrangement ensures that each annular arrangement unit 22 has at least one mounting hole 23 limited by the guide rod 11, while the number of guide rods 11 will not be too large, thereby making the guide device structure simple and reliable.

[0076] This embodiment also provides an assembly platform, such as Figure 1 As shown, the assembly platform includes the positioning device and the installation platform 1 as described above. The installation platform 1 is built on the factory floor 17. Below the factory floor 17 is the factory foundation pit 16. The positioning device includes a stacking base plate 2, a positioning member 4 connected to the installation platform 1 by the stacking base plate 2, and a guide device. The stacking base plate 2 is arranged above the installation platform 1. The stacking base plate 2 is connected to the installation platform 1 through three positioning members 4 arranged at annular intervals. The guide device is arranged in the factory foundation pit 16 below the installation platform 1. Through the positioning device, when the stacking elements 3 are stacked layer by layer, no matter whether the stacking base plate 2 is completely covered or blocked by other obstructions, the assembly platform always has a measurement mark 6 that can be identified by the measuring device, ensuring that the reference space coordinate information of the stacking base plate 2 is accurate; the relative space coordinate information of the stacking element 3 relative to the stacking base plate 2 is accurately determined by the guide rod 11 in a penetrating manner. This guiding positioning method is not easily disturbed and has a small error; thereby improving the positioning accuracy, reliability and consistency of the multi-layer assembly structure, and also helping to improve the assembly efficiency.

[0077] Although the specific implementations of the utility model are described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the attached claims. Those skilled in the art can make various changes or modifications to these implementations without departing from the principle and essence of the utility model, but these changes and modifications fall within the protection scope of the utility model.

Claims

1. A positioning device, comprising a stacking base plate, on which stacking elements are mounted layer by layer, characterized in that: At least two measurement marks are provided on the stacking bottom plate and / or on the mounting platform outside the stacking bottom plate, and the measurement marks are used to cooperate with the measuring equipment provided above the mounting platform to determine the reference space coordinate information of the stacking bottom plate; The positioning device further comprises a guide rod, which passes through the stacking base plate or the stacking elements of the installed layer and the stacking elements to be assembled, so as to determine the relative spatial coordinate information of the stacking elements to be assembled relative to the stacking base plate.

2. The positioning device according to claim 1, characterized in that The stacking bottom plate is arranged above the mounting platform and is mounted on the mounting platform through at least two positioning members arranged at intervals, and the mounting platform is provided with at least two measuring marks spaced and surrounded in an area outside the stacking bottom plate; The guide rod is arranged below the mounting platform and passes through the stacking bottom plate or the stacking elements of the mounted layer and the stacking elements to be assembled in sequence from bottom to top from the central through hole area of ​​the mounting platform.

3. The positioning device according to claim 2, characterized in that: Each of the measurement marks is arranged on the protruding structure in a one-to-one correspondence, and a guide structure is arranged on the inner side of the protruding structure close to the stacking bottom plate, and the stacking bottom plate is clamped in the plurality of guide structures arranged in a ring.

4. The positioning device according to claim 2, characterized in that: At least two leveling pads are spaced apart and arranged in a circle on the mounting platform. The leveling pads are arranged on the lower surface of the stacking bottom plate and are used to adjust the height of the stacking bottom plate in the vertical direction.

5. The positioning device according to any one of claims 1 to 4, characterized in that: The positioning device also includes a guide device arranged below the stacking bottom plate; The guide device includes a lifting drive, a lifting platform and at least one guide rod, wherein the guide rod is vertically arranged on the lifting platform, and the lifting drive is connected to the lifting platform, and drives the lifting platform and the guide rod to vertically lift and lower, and sequentially pass through the stacking bottom plate or the stacking elements of the installed layer, and the stacking elements to be assembled.

6. The positioning device according to claim 5, characterized in that: The guide device further comprises a guide fixing plate, the guide fixing plate is arranged parallel to the bottom of the mounting platform, and the stacking bottom plate is arranged above the mounting platform; The guide rod passes through the guide fixing plate, the stacking bottom plate or the stacking element of the installed layer, and the stacking element to be assembled in sequence from bottom to top in the central through hole area of ​​the mounting platform.

7. The positioning device according to claim 6, characterized in that: A positioning piece is provided on the mounting platform, and two ends of the positioning piece are respectively connected to the stacking bottom plate and the guide fixing plate; The guide fixing plate is used to clamp a guide sleeve in the guide hole through which the guide rod passes, and the guide rod freely passes through the inner hole of the guide sleeve.

8. The positioning device according to claim 5, characterized in that: The lifting platform is provided with a plurality of guide rods, and the stacking bottom plate is provided with a plurality of annular arrangement units distributed from the center to the outside, each of the annular arrangement units includes a plurality of mounting holes, and at least one mounting hole in each of the annular arrangement units is provided with a guide rod therethrough, and the guide rod passes through the mounting hole and the core hole of the stacking element in sequence.

9. The positioning device according to claim 8, characterized in that: A plurality of guide rods are distributed in a straight line on the lifting platform and freely penetrate the mounting holes arranged in a straight line from the center to the outside of the stacking bottom plate.

10. An assembly platform, characterized in that: The assembly platform comprises a positioning device as claimed in any one of claims 1-9.

Images