Positioning structure for OHB storage assembly

Abstract

This application relates to the field of positioning structure technology, and in particular to a positioning structure for OHB storage assembly, including a fixture reference base plate, C-shaped steel, and a storage support plate; the number of C-shaped steel is two, and two symmetrical first limiting pins are fixed on the upper surface of one end of the fixture reference base plate, and two sets of second limiting pins corresponding to the two C-shaped steel are provided on the upper surface of the fixture reference base plate; by setting the fixture reference base plate, C-shaped steel, storage support plate, first limiting pins, second limiting pins, first threaded positioning pins, and second threaded positioning pins, positioning and limiting can be performed at one time during the assembly process, while effectively reducing displacement, and the assembly is completed in one go, avoiding the need to check and adjust the position and size at each step during the process, reducing cumbersome procedures, and is compatible with four-unit storage, three-unit storage, and two-unit storage, improving efficiency by 50%, and achieving 100% quality stability and consistency.

Description

Technical Field

[0001] This application relates to the field of positioning structure technology, and in particular to positioning structures for OHB storage assembly. Background Technology

[0002] OHB (Outboard Hammer) refers to the use of suspended overhead bins (OHBs) as transfer stations in semiconductor manufacturing to enable the rapid allocation of fodder boxes (FOUPs) between different wafer fabs or production areas. Its advantages include reduced reliance on traditional warehousing facilities, optimized logistics routes, and consequently lower transport time and costs.

[0003] During the pre-assembly of components in the OHB storage unit assembly, after pre-tightening each component, the relevant installation position dimensions are measured and adjusted to meet the required size range. The flatness of each storage unit is also measured and adjusted to be consistent. After tightening each installation component, it is necessary to measure whether the relevant dimensions have changed after tightening. If there is any displacement or change in size, it is necessary to loosen again for measurement and adjustment before tightening again. The overall work is cumbersome, requiring repeated disassembly and adjustment, resulting in low efficiency.

[0004] Therefore, this application provides a positioning structure for OHB storage assembly. Summary of the Invention

[0005] The purpose of this application is to solve at least one technical problem raised in the background art.

[0006] This application provides a positioning structure for OHB storage assembly, including a fixture base plate, C-shaped steel and storage support plate;

[0007] The number of C-shaped steels is two, and the two C-shaped steels are symmetrically arranged on the upper surface of the fixture reference base plate. Two symmetrical first limiting pins are fixed on the upper surface of one end of the fixture reference base plate. The two first limiting pins are used to limit the ends of the two C-shaped steels respectively. The upper surface of the fixture reference base plate is provided with two sets of second limiting pins corresponding to the two C-shaped steels respectively. The number of storage support plates is four, and the storage support plates are equidistantly arranged on the upper surface of the two C-shaped steels. The second limiting pins are located in the middle of two adjacent storage support plates.

[0008] By adopting the above technical solution, positioning and limiting can be performed at one time during the assembly process, effectively reducing displacement and completing the assembly in one go. This avoids the need to check and adjust the position and size at each step, reducing tedious procedures.

[0009] Preferably, the upper surface of the fixture base plate is provided with four first threaded grooves corresponding to the two C-shaped steels respectively. The inner wall of the first threaded groove is threadedly connected to the first threaded positioning pin. The upper surface of the C-shaped steel is provided with a first positioning hole adapted to the first threaded positioning pin, and the first positioning hole is slidably connected to the outer surface of the first threaded positioning pin.

[0010] By adopting the above technical solution, after the C-shaped steel is inserted into the reference base plate of the fixture, the C-shaped steel can be effectively fixed on the reference base plate of the fixture by tightening the two first threaded positioning pins.

[0011] Preferably, the upper surface of the storage support plate has four second positioning holes arranged in a rectangular array, and the upper surface of the C-shaped steel has a third positioning hole corresponding to the second positioning holes. The inner walls of the second and third positioning holes are slidably provided with second threaded positioning pins. The upper surface of the fixture reference base plate has a second threaded groove corresponding to the second threaded positioning pin, and the inner wall of the second threaded groove is threadedly connected to the bottom outer surface of the second threaded positioning pin.

[0012] By adopting the above technical solution, after placing the storage support plate on two C-shaped steels, the C-shaped steels, the storage support plate, and the fixture reference base plate can be effectively locked and fixed by tightening the second threaded positioning pin.

[0013] Preferably, the front side of the fixture base plate is bolted to a mounting bracket for installing reflective warning signs.

[0014] By adopting the above technical solution, it is easier to install reflective warning signs, thereby improving safety.

[0015] Preferably, the upper surface of the fixture base plate is provided with a locking mechanism for simultaneously locking the two C-shaped steels and the storage support plate, and the lower surface of the storage support plate is fixed with two symmetrical limiting plates corresponding to the two C-shaped steels, and the surfaces of the two limiting plates are slidably connected to the opposite surfaces of the two C-shaped steels respectively.

[0016] By adopting the above technical solution, the storage support plate can be quickly snapped and limited by two limiting plates during assembly.

[0017] Preferably, the locking mechanism includes a rectangular cavity formed inside the reference base plate of the fixture, and two symmetrical rectangular slide plates slidably disposed on the inner wall of the rectangular cavity. The inner wall of the rectangular cavity is rotatably provided with a bidirectional threaded post. One end of the bidirectional threaded post extends to the outer surface of the reference base plate of the fixture and is fixedly provided with a turntable for rotating the bidirectional threaded post. The surface of the turntable is rotatably provided with a crank handle for facilitating the rotation of the turntable. The surfaces of the two rectangular slide plates are provided with threaded holes that are threadedly connected to the outer surface of the bidirectional threaded post.

[0018] By adopting the above technical solution, the turntable can be rotated by the crank handle to drive the bidirectional threaded column to rotate, and the rotation of the bidirectional threaded column can drive the two rectangular slide plates to move to both sides at the same time.

[0019] Preferably, the inner wall of the rectangular cavity is fixed with a plurality of limiting rods, and the plurality of limiting rods and the bidirectional threaded column are arranged in a linear array inside the rectangular cavity. The surfaces of the two rectangular slide plates are each provided with a plurality of limiting holes that are slidably connected to the outer surfaces of the plurality of limiting rods.

[0020] By adopting the above technical solution, the stability of the rectangular slide plate during movement can be effectively guaranteed by the action of several limiting rods.

[0021] Preferably, the upper surface of the rectangular sliding plate is fixed with a first L-shaped locking plate corresponding to the storage support plate, the upper surface of the first L-shaped locking plate is fixed with a second L-shaped locking plate corresponding to the limiting plate, the surface of the C-shaped steel is provided with a first locking hole adapted to the first L-shaped locking plate, the surfaces of the limiting plate and the C-shaped steel are provided with a second locking hole adapted to the second L-shaped locking plate, and the inner top wall of the rectangular cavity is provided with a strip-shaped opening for sliding of the two first L-shaped locking plates.

[0022] By adopting the above technical solution, during the simultaneous movement of the two rectangular sliding plates to both sides, the two first L-shaped locking plates and the two second L-shaped locking plates can be driven to move to both sides simultaneously and be inserted into the two first locking holes and the two second locking holes respectively, thereby achieving automatic and rapid fixing of the two C-shaped steels and several storage support plates.

[0023] Preferably, the inner bottom wall of the second locking hole is provided with a rectangular recess, the inner bottom wall of the rectangular recess is fixed with a trapezoidal block, the inner top wall of the second L-shaped locking plate is provided with an installation groove, the inner wall of the installation groove is fixed with a rectangular box, the inner wall of the rectangular box is slidably provided with a rectangular pressure plate, the lower surface of the rectangular pressure plate is equidistantly provided with a plurality of downward pressure columns corresponding to the trapezoidal blocks, and the inner bottom wall of the rectangular box is provided with a plurality of vertical through holes that are slidably connected to the outer surfaces of the plurality of downward pressure columns.

[0024] By adopting the above technical solution, during the process of the second L-shaped locking plate entering the second locking hole, the downward pressing column can be driven to move upward under the action of the slope surface of the trapezoidal block until the downward pressing column reaches the top of the trapezoidal block.

[0025] Preferably, a plurality of clamping springs are fixedly provided at equal intervals on the upper surface of the rectangular pressure plate, and the top end of the clamping spring is fixedly connected to the inner top wall of the rectangular box. A tension spring is sleeved on the outer surface of the lower pressure column, one end of the tension spring is fixedly connected to the lower surface of the rectangular pressure plate, and the other end of the tension spring is fixedly connected to the inner bottom wall of the rectangular box.

[0026] By adopting the above technical solution, the pressure column can press against the trapezoidal block under the action of the clamping spring and tension spring, and apply downward pressure, so that the storage support plate can be effectively pressed against and attached to the surface of the two C-shaped steels.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. The positioning structure for OHB storage assembly described in this application, by setting a jig reference base plate, C-shaped steel, storage support plate, first limit pin, second limit pin, first threaded positioning pin, and second threaded positioning pin, can perform positioning and limiting in one go during the assembly process, effectively reducing displacement. Moreover, it can be assembled in one go, avoiding the need to check and adjust the position and size at each step during the process, reducing cumbersome procedures. It is also compatible with four-unit storage, three-unit storage, and two-unit storage, improving efficiency by 50%, and achieving 100% quality stability and consistency.

[0029] 2. The positioning structure for OHB storage assembly described in this application, by setting a locking mechanism, allows the C-shaped steel to be placed on the fixture reference base plate via the first and second limiting pins, and the storage support plate to be placed on the two C-shaped steel via the two limiting plates and the second limiting pin. The turntable can be rotated by a crank handle, causing the bidirectional threaded column to rotate. The rotation of the bidirectional threaded column causes the two rectangular sliding plates to move simultaneously to both sides, thereby causing the first L-shaped locking plate and the second L-shaped locking plate to be inserted into the first locking hole and the second locking hole respectively, thus achieving the positioning of the two C-shaped steel. The quick and automatic locking and fixing of the storage support plate further simplifies the assembly steps and improves work efficiency. At the same time, during the process of the second L-shaped locking plate entering the second locking hole, it can drive the lower pressure column to move upward under the action of the slope surface of the trapezoidal block until the lower pressure column reaches the top of the trapezoidal block. At this time, the lower pressure column can press against the trapezoidal block under the action of the clamping spring and tension spring and apply downward pressure, so that the storage support plate can effectively press against the surface of the two C-shaped steels, thereby effectively ensuring the stability of the storage support plate after positioning. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application;

[0031] Figure 2 This is a schematic diagram of a side view of an embodiment of this application;

[0032] Figure 3 This application Figure 2 Enlarged structural diagram at point A

[0033] Figure 4This is a schematic diagram of the side-section separation structure of the storage support plate in Embodiment 1 of this application;

[0034] Figure 5 This is a schematic diagram of the overall structure of Embodiment 2 of this application;

[0035] Figure 6 This is a schematic diagram of the rectangular cavity cross-sectional structure in Embodiment 2 of this application;

[0036] Figure 7 This is a schematic diagram of the cross-sectional structure of the reference base plate of the fixture in Embodiment 2 of this application;

[0037] Figure 8 This is a schematic cross-sectional view of the storage support plate in Embodiment 2 of this application;

[0038] Figure 9 This application Figure 8 Enlarged structural diagram at point B.

[0039] Explanation of reference numerals in the attached figures:

[0040] 100. Fixture base plate; 101. First limiting pin; 102. Second limiting pin; 103. First threaded groove; 104. First threaded locating pin; 105. Second threaded locating pin; 106. Second threaded groove; 107. Mounting bracket;

[0041] 200, C-shaped steel;

[0042] 300. Storage support plate;

[0043] 400. Locking mechanism; 401. Limiting plate; 402. Rectangular sliding plate; 403. Bidirectional threaded post; 404. Turntable; 405. Handle; 406. Limiting rod; 407. First L-shaped locking plate; 408. Second L-shaped locking plate; 409. First locking hole; 4010. Second locking hole; 4011. Rectangular recess; 4012. Trapezoidal block; 4013. Rectangular box; 4014. Rectangular pressure plate; 4015. Lower pressure post; 4016. Pressing spring; 4017. Tension spring. Detailed Implementation

[0044] The following combination Figures 1 to 9 This application will be described in further detail.

[0045] Example 1

[0046] Please refer to the following carefully. Figures 1 to 4The positioning structure for OHB storage assembly includes a fixture reference base plate 100, C-shaped steel 200, and storage support plate 300. There are two C-shaped steel 200s, symmetrically arranged on the upper surface of the fixture reference base plate 100. Two symmetrical first limiting pins 101 are fixed to one end of the upper surface of the fixture reference base plate 100, respectively limiting the ends of the two C-shaped steel 200s. Two sets of second limiting pins 102, corresponding to the two C-shaped steel 200s, are provided on the upper surface of the fixture reference base plate 100. There are four storage support plates 300, equidistantly arranged on the upper surfaces of the two C-shaped steel 200s. The second limiting pins 102 are located between adjacent storage support plates 300.

[0047] Specifically, the system can perform positioning and limiting in one go during the assembly process, effectively reducing displacement and completing the assembly in one go. This avoids the need to check and adjust the position and size at each step, reducing tedious procedures.

[0048] Please refer to this carefully. Figure 1 , Figure 3 The upper surface of the fixture base plate 100 is provided with four first threaded grooves 103 corresponding to the two C-shaped steels 200 respectively. The inner wall of the first threaded groove 103 is threadedly connected to the first threaded positioning pin 104. The upper surface of the C-shaped steel 200 is provided with a first positioning hole that is adapted to the first threaded positioning pin 104, and the first positioning hole is slidably connected to the outer surface of the first threaded positioning pin 104.

[0049] Specifically, after the C-shaped steel 200 is inserted into the fixture reference base plate 100, the C-shaped steel 200 can be effectively fixed on the fixture reference base plate 100 by tightening the two first threaded positioning pins 104.

[0050] Please refer to this carefully. Figure 3 , Figure 4 The upper surface of the storage support plate 300 is provided with four second positioning holes in a rectangular array, and the upper surface of the C-shaped steel 200 is provided with a third positioning hole corresponding to the second positioning holes. The inner walls of the second positioning holes and the third positioning holes are slidably provided with second threaded positioning pins 105. The upper surface of the fixture reference base plate 100 is provided with a second threaded groove 106 corresponding to the second threaded positioning pin 105, and the inner wall of the second threaded groove 106 is threadedly connected to the bottom outer surface of the second threaded positioning pin 105.

[0051] Specifically, after the storage support plate 300 is placed on the two C-shaped steels 200, the C-shaped steels 200, the storage support plate 300 and the fixture reference base plate 100 can be effectively locked and fixed by tightening the second threaded positioning pin 105.

[0052] Please refer to this carefully. Figure 1 , Figure 2 The front of the fixture base plate 100 is fixedly connected with a mounting bracket 107 for installing reflective warning signs by bolts.

[0053] Specifically, it facilitates the installation of reflective warning signs, thereby improving safety.

[0054] In this embodiment, by setting a fixture base plate 100, C-shaped steel 200, storage support plate 300, first limiting pin 101, second limiting pin 102, first threaded positioning pin 104, and second threaded positioning pin 105, positioning and limiting can be performed at one time during the assembly process, effectively reducing displacement. Moreover, the assembly is completed in one go, avoiding the need to check and adjust the position and size at each step during the process, reducing tedious procedures. It is also compatible with four-unit storage, three-unit storage, and two-unit storage, improving efficiency by 50%, and achieving 100% quality stability and consistency.

[0055] Working principle:

[0056] During assembly, the C-shaped steel 200 is first placed on the upper surface of the fixture base plate 100, so that the C-shaped steel 200 is snapped and limited within the area enclosed by the first limiting pin 101 and the second limiting pin 102. The storage support plate 300 is then placed on the surfaces of the two C-shaped steels 200. Finally, the first threaded positioning pin 104 and the second threaded positioning pin 105 are tightened respectively. This allows the structure to be positioned and limited in one go during the assembly process, effectively reducing displacement. Moreover, the assembly is completed in one go, avoiding the need to check and adjust the position and size at each step, reducing tedious procedures. It is also compatible with four-unit storage, three-unit storage and two-unit storage, improving efficiency by 50%, and achieving 100% quality stability and consistency.

[0057] Example 2

[0058] Based on Example 1, referring to Figures 5 to 9 And unlike Example 1, the following is true:

[0059] Please refer to this carefully. Figure 6 , Figure 7 The upper surface of the fixture base plate 100 is provided with a locking mechanism 400 for simultaneously locking the two C-shaped steels 200 and the storage support plate 300. The lower surface of the storage support plate 300 is fixed with two symmetrical limiting plates 401 corresponding to the two C-shaped steels 200, and the surfaces of the two limiting plates 401 are slidably connected to the opposite surfaces of the two C-shaped steels 200 respectively.

[0060] Specifically, during the assembly of the storage support plate 300, two limiting plates 401 can be used to quickly snap and limit the storage support plate 300.

[0061] Please refer to this carefully. Figure 5 , Figure 6 The locking mechanism 400 includes a rectangular cavity opened inside the fixture base plate 100, and two symmetrical rectangular slide plates 402 slidably disposed on the inner wall of the rectangular cavity. A bidirectional threaded post 403 is rotatably disposed on the inner wall of the rectangular cavity. One end of the bidirectional threaded post 403 extends to the outer surface of the fixture base plate 100 and is fixedly disposed on a turntable 404 for rotating the bidirectional threaded post 403. A crank handle 405 is rotatably disposed on the surface of the turntable 404 to facilitate rotating the turntable 404. The surfaces of the two rectangular slide plates 402 are each provided with threaded holes that are threadedly connected to the outer surface of the bidirectional threaded post 403.

[0062] Specifically, the crank handle 405 can rotate the turntable 404, which in turn drives the bidirectional threaded column 403 to rotate. The rotation of the bidirectional threaded column 403 can drive the two rectangular slide plates 402 to move to both sides simultaneously.

[0063] Please refer to this carefully. Figure 7 , Figure 8 The inner wall of the rectangular cavity is fixed with several limiting rods 406, and the several limiting rods 406 and the bidirectional threaded column 403 are arranged in a linear array inside the rectangular cavity. The surfaces of the two rectangular slide plates 402 are each provided with several limiting holes that are slidably connected to the outer surfaces of the several limiting rods 406.

[0064] Specifically, the stability of the rectangular slide plate 402 during movement is effectively ensured by the action of several limiting rods 406.

[0065] Please refer to this carefully. Figure 8 , Figure 9 The upper surface of the rectangular slide plate 402 is fixed with a first L-shaped locking plate 407 corresponding to the storage support plate 300. The upper surface of the first L-shaped locking plate 407 is fixed with a second L-shaped locking plate 408 corresponding to the limiting plate 401. The surface of the C-shaped steel 200 is provided with a first locking hole 409 that matches the first L-shaped locking plate 407. The surfaces of the limiting plate 401 and the C-shaped steel 200 are provided with a second locking hole 4010 that matches the second L-shaped locking plate 408. The inner top wall of the rectangular cavity is provided with a strip-shaped opening for sliding of the two first L-shaped locking plates 407.

[0066] Specifically, as the two rectangular sliding plates 402 move to both sides simultaneously, they drive the two first L-shaped locking plates 407 and the two second L-shaped locking plates 408 to move to both sides simultaneously and insert them into the two first locking holes 409 and the two second locking holes 4010 respectively, thereby achieving automatic and rapid fixing of the two C-shaped steels 200 and several storage support plates 300.

[0067] This invention, by setting a locking mechanism 400, allows for the rapid and automatic locking and fixing of the two C-shaped steels 200 and the storage support plate 300 on the two C-shaped steels 200 after the C-shaped steels 200 are placed on the fixture reference base plate 100 via the first limiting pin 101 and the second limiting pin 102, and the storage support plate 300 is placed on the two C-shaped steels 200 via the two limiting plates 401 and the second limiting pin 102. The turntable 404 can be rotated by the crank handle 405, causing the bidirectional threaded column 403 to rotate. The rotation of the bidirectional threaded column 403 causes the two rectangular sliding plates 402 to move simultaneously to both sides, thereby causing the first L-shaped locking plate 407 and the second L-shaped locking plate 408 to be inserted into the first locking hole 409 and the second locking hole 4010 respectively. This further simplifies the assembly steps and improves work efficiency.

[0068] Please refer to this carefully. Figure 8 , Figure 9 The inner bottom wall of the second locking hole 4010 is provided with a rectangular recess 4011, and a trapezoidal block 4012 is fixedly provided on the inner bottom wall of the rectangular recess 4011. The inner top wall of the second L-shaped locking plate 408 is provided with an installation groove, and a rectangular box 4013 is fixedly provided on the inner wall of the installation groove. A rectangular pressure plate 4014 is slidably provided on the inner wall of the rectangular box 4013. Several downward pressure posts 4015 corresponding to the trapezoidal block 4012 are fixedly provided at equal intervals on the lower surface of the rectangular pressure plate 4014. Several vertical through holes are provided on the inner bottom wall of the rectangular box 4013, which are slidably connected to the outer surfaces of the several downward pressure posts 4015 respectively.

[0069] Specifically, during the process of the second L-shaped locking plate 408 entering the second locking hole 4010, it can drive the lower pressure column 4015 to move upward under the action of the slope surface of the trapezoidal block 4012 until the lower pressure column 4015 reaches the top of the trapezoidal block 4012.

[0070] Please refer to this carefully. Figure 8 , Figure 9 A number of clamping springs 4016 are fixedly fixed at equal intervals on the upper surface of the rectangular pressure plate 4014, and the top of the clamping springs 4016 is fixedly connected to the inner top wall of the rectangular box 4013. A tension spring 4017 is sleeved on the outer surface of the lower pressure column 4015. One end of the tension spring 4017 is fixedly connected to the lower surface of the rectangular pressure plate 4014, and the other end of the tension spring 4017 is fixedly connected to the inner bottom wall of the rectangular box 4013.

[0071] Specifically, the downward pressure column 4015 can press against the trapezoidal block 4012 under the action of the clamping spring 4016 and the tension spring 4017, and apply downward pressure, so that the storage support plate 300 can effectively press against and adhere to the surfaces of the two C-shaped steels 200.

[0072] In the technical solution proposed in this invention, during the process of the second L-shaped locking plate 408 entering the second locking hole 4010, the lower pressure column 4015 can be driven to move upward under the action of the slope surface of the trapezoidal block 4012 until the lower pressure column 4015 reaches the top of the trapezoidal block 4012. At this time, the lower pressure column 4015 can press against the trapezoidal block 4012 under the action of the pressing spring 4016 and the tension spring 4017 and apply downward pressure, so that the storage support plate 300 can be effectively pressed against and attached to the surfaces of the two C-shaped steels 200, thereby effectively ensuring the stability of the storage support plate 300 after positioning.

[0073] Working principle:

[0074] Furthermore, after the C-shaped steel 200 is placed on the fixture reference base plate 100 via the first limiting pin 101 and the second limiting pin 102, and the storage support plate 300 is placed on the two C-shaped steel 200 via the two limiting plates 401 and the second limiting pin 102, the turntable 404 can be rotated by the crank handle 405. The rotation of the turntable 404 drives the bidirectional threaded column 403 to rotate, and the rotation of the bidirectional threaded column 403 drives the two rectangular sliding plates 402 to move to both sides simultaneously, thereby causing the first L-shaped locking plate 407 and the second L-shaped locking plate 408 to be inserted into the first locking hole 409 and the second locking hole 4010 respectively, thus realizing the control of the two C-shaped steel 200 and the storage support plate 300. The rapid automatic locking and fixing further simplifies the assembly steps and improves work efficiency. Moreover, during the process of the second L-shaped locking plate 408 entering the second locking hole 4010, it can drive the lower pressure column 4015 to move upward under the action of the slope surface of the trapezoidal block 4012 until the lower pressure column 4015 reaches the top of the trapezoidal block 4012. At this time, the lower pressure column 4015 can press against the trapezoidal block 4012 under the action of the clamping spring 4016 and the tension spring 4017 and apply downward pressure, so that the storage support plate 300 can effectively press against and adhere to the surfaces of the two C-shaped steels 200, thereby effectively ensuring the stability of the storage support plate 300 after positioning.

[0075] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A positioning structure for OHB storage assembly, characterized in that, Includes a fixture base plate (100), C-shaped steel (200), and a storage support plate (300); The number of C-shaped steel (200) is two, and the two C-shaped steel (200) are symmetrically arranged on the upper surface of the fixture reference base plate (100). Two symmetrical first limiting pins (101) are fixed on the upper surface of one end of the fixture reference base plate (100). The two first limiting pins (101) are used to limit the ends of the two C-shaped steel (200) respectively. The upper surface of the fixture reference base plate (100) is provided with two sets of second limiting pins (102) corresponding to the two C-shaped steel (200) respectively. The number of storage support plates (300) is four. The storage support plates (300) are equidistantly arranged on the upper surface of the two C-shaped steel (200). The second limiting pins (102) are arranged in the middle of two adjacent storage support plates (300). The upper surface of the fixture base plate (100) is provided with a locking mechanism (400) for simultaneously locking the two C-shaped steels (200) and the storage support plate (300). The lower surface of the storage support plate (300) is fixed with two symmetrical limiting plates (401) corresponding to the two C-shaped steels (200), and the surfaces of the two limiting plates (401) are slidably connected to the opposite surfaces of the two C-shaped steels (200). The locking mechanism (400) includes a rectangular cavity opened inside the fixture base plate (100) and two symmetrical rectangular slide plates (402) slidably disposed on the inner wall of the rectangular cavity. The inner wall of the rectangular cavity is rotatably provided with a bidirectional threaded post (403). One end of the bidirectional threaded post (403) extends to the outer surface of the fixture base plate (100) and is fixedly provided with a turntable (404) for rotating the bidirectional threaded post (403). The surface of the turntable (404) is rotatably provided with a crank (405) to facilitate rotating the turntable (404). The surfaces of the two rectangular slide plates (402) are provided with threaded holes that are threadedly connected to the outer surface of the bidirectional threaded post (403).

2. The positioning structure for OHB storage assembly according to claim 1, characterized in that, The upper surface of the fixture base plate (100) is provided with four first threaded grooves (103) corresponding to the two C-shaped steels (200). The inner wall of the first threaded groove (103) is threadedly connected to the first threaded positioning pin (104). The upper surface of the C-shaped steel (200) is provided with a first positioning hole that is adapted to the first threaded positioning pin (104), and the first positioning hole is slidably connected to the outer surface of the first threaded positioning pin (104).

3. The positioning structure for OHB storage assembly according to claim 1, characterized in that, The upper surface of the storage support plate (300) is provided with four second positioning holes in a rectangular array, and the upper surface of the C-shaped steel (200) is provided with a third positioning hole corresponding to the second positioning holes. The inner walls of the second positioning holes and the third positioning holes are slidably provided with second threaded positioning pins (105). The upper surface of the fixture reference base plate (100) is provided with a second threaded groove (106) corresponding to the second threaded positioning pin (105), and the inner wall of the second threaded groove (106) is threadedly connected to the bottom outer surface of the second threaded positioning pin (105).

4. The positioning structure for OHB storage assembly according to claim 1, characterized in that, The front of the fixture base plate (100) is fixedly connected by bolts to a mounting bracket (107) for installing reflective warning signs.

5. The positioning structure for OHB storage assembly according to claim 1, characterized in that, The inner wall of the rectangular cavity is fixed with a number of limiting rods (406), and the number of limiting rods (406) and the bidirectional threaded column (403) are arranged in a linear array inside the rectangular cavity. The surfaces of the two rectangular slide plates (402) are each provided with a number of limiting holes that are slidably connected to the outer surfaces of the number of limiting rods (406).

6. The positioning structure for OHB storage assembly according to claim 5, characterized in that, The upper surface of the rectangular sliding plate (402) is fixed with a first L-shaped locking plate (407) corresponding to the storage support plate (300). The upper surface of the first L-shaped locking plate (407) is fixed with a second L-shaped locking plate (408) corresponding to the limiting plate (401). The surface of the C-shaped steel (200) is provided with a first locking hole (409) adapted to the first L-shaped locking plate (407). The surfaces of the limiting plate (401) and the C-shaped steel (200) are provided with a second locking hole (4010) adapted to the second L-shaped locking plate (408). The inner top wall of the rectangular cavity is provided with a strip-shaped opening for sliding of the two first L-shaped locking plates (407).

7. The positioning structure for OHB storage assembly according to claim 6, characterized in that, The inner bottom wall of the second locking hole (4010) is provided with a rectangular recess (4011), and a trapezoidal block (4012) is fixedly provided on the inner bottom wall of the rectangular recess (4011). The inner top wall of the second L-shaped locking plate (408) is provided with an installation groove, and a rectangular box (4013) is fixedly provided on the inner wall of the installation groove. A rectangular pressure plate (4014) is slidably provided on the inner wall of the rectangular box (4013). A number of downward pressure columns (4015) corresponding to the trapezoidal block (4012) are fixedly provided at equal intervals on the lower surface of the rectangular pressure plate (4014). A number of vertical through holes are provided on the inner bottom wall of the rectangular box (4013) and are slidably connected to the outer surface of the number of downward pressure columns (4015).

8. The positioning structure for OHB storage assembly according to claim 7, characterized in that, A plurality of clamping springs (4016) are fixedly fixed at equal intervals on the upper surface of the rectangular pressure plate (4014), and the top end of the clamping springs (4016) is fixedly connected to the inner top wall of the rectangular box (4013). A tension spring (4017) is sleeved on the outer surface of the lower pressure column (4015). One end of the tension spring (4017) is fixedly connected to the lower surface of the rectangular pressure plate (4014), and the other end of the tension spring (4017) is fixedly connected to the inner bottom wall of the rectangular box (4013).

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