Civil air defense door frame hinge plate welding positioning device

Abstract

The utility model relates to the technical field of civil air defense door frame equipment, in particular to a civil air defense door frame hinge plate welding positioning device which comprises a supporting assembly, a pressing assembly, at least two limiting assemblies and at least one fixing assembly, the supporting assembly comprises a supporting plate, the pressing assembly is connected with the supporting plate, and the pressing assembly is used for pressing a hinge shaft and a hinge plate; at least one placing groove for placing a hinge plate is formed in the supporting plate, the two limiting assemblies are distributed in the length direction of one side edge of the supporting plate and used for limiting and fixing a hinge shaft, a sliding groove is formed in the portion, in the placing groove, of the supporting plate, and the arrangement direction of the sliding groove is consistent with the distribution direction of the two limiting assemblies; the fixing assembly comprises a clamping piece, the clamping piece comprises two clamping plates, one ends of the two clamping plates extend into the sliding groove, the two clamping plates are connected to the supporting plate in a sliding mode, and the two clamping plates can clamp the hinge plate; the hinge welding method has the effect of improving the accuracy of welding the hinge inconveniently.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of civil air defense door frame devices, in particular to a civil air defense door frame hinge plate welding positioning device. BACKGROUND

[0002] The civil air defense door frame hinge plate welding positioning device is an indispensable part of modern building protection engineering. With the acceleration of urbanization, the demand for civil air defense facilities is increasing, and higher requirements are put forward for the manufacturing precision and reliability of civil air defense door frames. The welding quality of the civil air defense door frame directly affects the safety and reliability of the entire protection engineering as a key component.

[0003] In the related art, the application file with the application number CN215718001U discloses a hinge type welding hinge, which comprises a left hinge, a right hinge, an upper shaft sleeve, a lower shaft sleeve, an inner shaft, a graphite copper sleeve and a fixing rod. The hinge type welding hinge is designed with a positioning clamping hole for positioning and fixing. The hinge type welding hinge uses a copper sleeve made of graphite material at both ends of the upper shaft sleeve and the lower shaft sleeve, has self-lubricating characteristics, makes the sliding of the inner shaft more lightweight, and is provided with a lubricating groove in the upper shaft sleeve, the lower shaft sleeve and the inner shaft. The lubricating grease can be added as needed, and the fixing rod can be used for positioning and fixing. The structure is simple and convenient to use, has the advantages of low investment cost, short development cycle and quick change according to market demand.

[0004] In view of the related art, the hinge is only manually held during welding. Once the hand slightly deviates during welding, the hinge will move, which is not convenient for the accuracy of the hinge welding. During use, the friction is relatively large, and abnormal noise occurs. The civil air defense door is also severely worn. Invention content

[0005] In order to overcome the above problems, the application provides a civil air defense door frame hinge plate welding positioning device.

[0006] The civil air defense door frame hinge plate welding positioning device provided by the application adopts the following technical scheme:

[0007] A civil air defense door frame hinge plate welding positioning device, comprising a supporting assembly, a pressing assembly, at least two limiting assemblies and at least one fixing assembly, the supporting assembly comprising a supporting plate, the pressing assembly being located at the top of the supporting plate, the pressing assembly being connected with the supporting plate, and the pressing assembly being used for pressing the hinge shaft and the hinge plate.

[0008] The support plate is provided with at least one placement slot for placing the hinge plate, two limiting components are distributed along the length of one side of the support plate, the limiting components are used for limiting and fixing the hinge shaft, the fixing component is located in the placement slot, the support plate is provided with a sliding slot in the placement slot, the setting direction of the sliding slot is consistent with the distribution direction of the two limiting components, the fixing component comprises a clamping piece, the clamping piece comprises two clamping plates, one end of each of the two clamping plates extends into the sliding slot, the two clamping plates are slidingly connected to the support plate, the two clamping plates move towards each other or away from each other, and the two clamping plates can clamp the hinge plate.

[0009] By adopting the above technical scheme, when the hinge plate of the civil air defense door frame needs to be welded, first, the hinge plate to be welded is moved to the placement slot, personnel drive the two clamping plates according to the size of the hinge plate, then the hinge plate is placed in the placement slot, the hinge plate is clamped and fixed by the two clamping plates, the hinge shaft is taken out, the hinge shaft is placed at the corresponding position of the hinge plate according to the design requirement, the limiting component limits the hinge shaft, the pressing component is started, the pressing component presses the hinge shaft and the hinge plate, after the fixing is completed, the hinge plate and the hinge shaft are welded, compared with the related art, the civil air defense door frame hinge plate welding positioning device can realize accurate positioning and stable fixing of the hinge plate, effectively prevent the movement of the hinge plate during welding, improve the welding quality and efficiency, specifically, the support component provides a stable support platform, the pressing component ensures the close fit of the hinge shaft and the hinge plate, the limiting component accurately controls the position of the hinge shaft, and the fixing component adjusts the flexible clamping plate to adapt to hinge plates of different sizes, reduces the error in the welding process, and improves the reliability and safety of welding.

[0010] In one specific implementation scheme, the limiting component comprises two limiting plates and two fasteners, the two limiting plates are distributed along the setting direction of the sliding slot, the limiting plates are arranged in parallel with the support plate, a limiting gap for limiting the hinge shaft is left between the two limiting plates, the limiting plates are slidingly connected to the support plate, the support plate is provided with a fixing hole near the limiting plate, and the limiting plate is provided with a waist-shaped hole along the sliding direction thereof;

[0011] The fasteners correspond to the limiting plates one by one, the fastener comprises a bolt, the bolt is in threaded connection with a nut after sequentially penetrating through the fixing hole and the waist-shaped hole, so as to fix the support plate and the limiting plate.

[0012] By adopting the above technical scheme, the setting of the limiting plates and the fasteners enables the hinge shaft to remain stable during the welding process, avoids the slight deviation caused by manual holding, improves the accuracy and reliability of welding, and meanwhile, the limiting gaps between the limiting plates can be adjusted according to hinge shafts of different sizes, thereby enhancing the adaptability of the device. The design of the fasteners enables the limiting plates to be firmly fixed at the required positions, ensuring that no loosening occurs during the entire welding process.

[0013] In one specific implementable scheme, the fixing assembly further comprises a driving member, the driving member comprises a first bidirectional screw rod and a handle, the first bidirectional screw rod is located in the sliding groove, the setting direction of the first bidirectional screw rod is consistent with the setting direction of the sliding groove, both ends of the first bidirectional screw rod are rotationally connected to the support plate, and two clamping plates are threadedly connected to one end of the first bidirectional screw rod.

[0014] By adopting the above technical scheme, precise fixing of the hinge plate is achieved, and the stability and accuracy of welding are improved. The setting of the first bidirectional screw rod and the handle enables the relative movement of the two clamping plates to be accurately controlled by manually operating the handle, ensures uniform clamping force, and avoids the deformation or loosening of the hinge plate that may be caused by the traditional fixing method. The threaded connection of the clamping plate and the first bidirectional screw rod ensures smooth movement of the clamping plate in the sliding groove, thereby enhancing the overall stability of the device. The setting direction of the sliding groove on the support plate and the first bidirectional screw rod is consistent, which ensures that the clamping plate does not deviate from the predetermined trajectory during movement, further improving the fixing effect. Precise fixing of the hinge plate is achieved, errors caused by the traditional manual fixing method are avoided, and the stability during the welding process is improved. Meanwhile, the first bidirectional screw rod is driven by the handle, enabling the clamping plate to be flexibly adjusted in position, thereby adapting to hinge plates of different sizes, enhancing the versatility and operation convenience of the device.

[0015] In one specific implementable scheme, the pressing assembly is located in the middle part of the support plate, and the pressing assembly comprises four power members and a plurality of pressing members. The four power members are distributed at intervals along the setting direction of the sliding groove, the power members are connected to the support plate, the power members and the pressing members are connected one-to-one, and the pressing members are used to press the hinge shaft and the hinge plate.

[0016] The support plate is provided with four placing grooves for placing the hinge leaf plates, the four placing grooves are close to a corner of the support plate respectively, the four placing grooves are divided into two groups, the two placing grooves on the two sides of the power member are one group, a limiting area is left between the two placing grooves in each group of the placing grooves, two power members are arranged in the limiting area correspondingly, each power member corresponds to two limiting assemblies, the two limiting assemblies are located on the side of the power member respectively, and the distribution directions of the two limiting assemblies are perpendicular to the distribution directions of the two groups of placing grooves.

[0017] By adopting the above technical scheme, efficient and accurate welding positioning of the air defense door frame hinge leaf plate is realized; the pressing assembly is located in the middle of the support plate and includes four power members and multiple pressing members, the four power members are distributed at intervals along the arrangement direction of the sliding groove, this arrangement makes the pressing force uniformly distributed on the hinge leaf plate, ensures the stability and accuracy of the hinge leaf plate during welding, and avoids welding quality problems caused by uneven pressing; the support plate is provided with four placing grooves for placing the hinge leaf plates, the four placing grooves are close to a corner of the support plate respectively, this design not only improves the space utilization rate, but also further ensures the positioning accuracy of the hinge shaft through accurate control of the limiting assembly, reduces the error in the welding process, improves the welding quality and efficiency, can realize accurate positioning and firm fixing of the hinge leaf plate and the hinge shaft, avoids deviation caused by manual holding during welding, and improves the welding quality and efficiency. Meanwhile, the design of multiple groups of power members and pressing members enables the device to press multiple hinge leaf plates at different positions simultaneously, ensures the stability and consistency of the welding process.

[0018] In a specific implementation scheme, the limiting assembly further includes a sliding member and two limiting members, the support plate is provided with four limiting grooves in the limiting area, the limiting grooves correspond to the placing grooves one by one, the arrangement direction of the limiting grooves is consistent with the arrangement direction of the sliding groove, the sliding member includes two sliding blocks, the two sliding blocks are located in the limiting grooves, and the two sliding blocks are slidingly arranged on the support plate.

[0019] The limiting member corresponds to the sliding block one by one, the limiting member includes two fixed plates and two fixed screws, the top of the sliding block is provided with a sliding groove for sliding of the fixed plate, the arrangement direction of the sliding groove is consistent with the arrangement direction of the sliding groove, the two fixed plates fix the hinge shaft, the fixed screw corresponds to the fixed plate one by one, the fixed screw is located on the side away from each other of the two fixed plates, the fixed screw is penetratingly arranged on the sliding block and rotationally connected with the fixed plate, the fixed screw is threadedly connected with the sliding block, and the fixed screw is used for driving the fixed plate to move.

[0020] By adopting the technical scheme, the hinge shaft is accurately limited and fixed. Specifically, the design of the sliding member and the sliding block enables the limiting assembly to be flexibly adjusted in position, thereby adapting to hinge plates of different sizes and improving the applicability of the device. The combination of the fixing plate and the fixing screw can fix the hinge shaft while ensuring the stability of the position of the hinge shaft, thereby avoiding quality problems caused by position changes during welding. The cooperation of the sliding groove and the fixing screw enables the fixing plate to firmly hold the hinge shaft, thereby further enhancing the fixing effect and reducing errors during welding. The design of the limiting assembly is simple and efficient, and the operation is simple, thereby improving the work efficiency and reducing the operation difficulty.

[0021] In a specific implementation, the top of the sliding block is flush with the top of the support plate.

[0022] By adopting the technical scheme, the top of the sliding block is flush with the top of the support plate, which can avoid interference between the sliding block and other external components during movement, improve the overall stability and reliability of the device, and also facilitate maintaining the flatness of the workbench surface and improving the convenience of welding operation.

[0023] In a specific implementation, the sliding member further comprises a second bidirectional screw and a handle, the second bidirectional screw is located in the sliding groove, the setting direction of the second bidirectional screw is consistent with the setting direction of the sliding groove, the second bidirectional screw is rotationally connected to the support plate at both ends, and the two sliding blocks are threadedly connected to one end of the second bidirectional screw, and the handle is connected to one end of the second bidirectional screw to drive the second bidirectional screw to rotate.

[0024] By adopting the technical scheme, the second bidirectional screw and the handle enable the sliding block to be more accurately adjusted in position, thereby ensuring that the limiting plate effectively limits hinge shafts of different sizes. Meanwhile, the handle drives the second bidirectional screw to rotate, thereby enabling the sliding block to move stably, improving the operation convenience and stability of the positioning device, reducing the time and labor intensity of manual adjustment, and further improving the accuracy and efficiency of welding positioning.

[0025] In a specific implementation, the two clamping plates are fixed with flexible pads on the side close to each other.

[0026] By adopting the technical scheme, the flexible pads can reduce the abrasion of the surface of the hinge plate during clamping, thereby improving the appearance quality and service life of the product. Specifically, the flexible pads can effectively distribute the clamping force, thereby avoiding damage to the surface of the hinge plate caused by excessive local pressure, and also increasing the stability of clamping and ensuring accurate positioning during welding.

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

[0028] 1. A designed welding positioning device for the hinge leaf plate of a civil defense door frame, which can achieve precise positioning and stable fixation of the hinge leaf plate, effectively prevent the movement of the hinge leaf plate during welding, and improve the welding quality and efficiency. Specifically, the support assembly provides a stable support platform, the compression assembly ensures the close fit of the hinge shaft and the hinge leaf plate, the limiting assembly accurately controls the position of the hinge shaft, and the fixing assembly adjusts the clamping plate to adapt to hinge leaf plates of different sizes, reduces errors during welding, and improves the reliability and safety of welding.

[0029] 2. The designed welding positioning device for the hinge leaf plate of a civil defense door frame, the limiting plate and fastener are set to make the hinge shaft stable during welding, avoid small deviations caused by manual holding, improve the accuracy and reliability of welding, and the limiting gap between the limiting plates can be adjusted according to the size of the hinge shaft, enhancing the adaptability of the device. The design of the fastener makes the limiting plate firmly fixed in the required position, ensuring that it will not loosen during the entire welding process.

[0030] 3. The designed welding positioning device for the hinge leaf plate of a civil defense door frame, which realizes accurate limiting and fixing of the hinge shaft; specifically, the design of the sliding member and the sliding block allows the limiting assembly to adjust the position flexibly, adapt to hinge leaf plates of different sizes, and improve the applicability of the device. The combination of the fixed plate and the fixed screw can fix the hinge shaft while ensuring the stability of its position, avoiding quality problems caused by position changes during welding. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is the overall structure schematic diagram of the first perspective in Example 1.

[0032] Figure 2 is the overall structure schematic diagram of the second perspective in Example 1.

[0033] Figure 3 is the structure schematic diagram of the limiting assembly and the fixing assembly in Example 1.

[0034] Figure 4 is the overall structure schematic diagram in Example 2.

[0035] Figure 5 is the structure schematic diagram of the limiting assembly in Example 2.

[0036] Explanation of reference signs: 1, support assembly; 11, support plate; 111, placing groove; 112, fixing hole; 113, sliding groove; 114, limiting groove; 12, support piece; 121, support rod; 2, pressing assembly; 21, power piece; 22, pressing piece; 221, connecting rod; 222, pressing rod; 3, limiting assembly; 31, limiting plate; 311, waist-shaped hole; 32, fastener; 321, bolt; 33, sliding piece; 331, second bidirectional screw rod; 332, sliding block; 3321, sliding groove; 333, handle; 34, limiting piece; 341, fixed plate; 342, fixed screw; 4, fixing assembly; 41, clamping piece; 411, clamping plate; 4111, flexible pad; 42, driving piece; 421, first bidirectional screw rod; 422, handle; 5, hinge plate; 6, hinge shaft. DETAILED DESCRIPTION

[0037] The following will be described in detail in combination with the accompanying drawings. Figures 1-5 The present application is further described in detail.

[0038] The embodiment of the present application discloses a welding positioning device for a hinge plate of a civil air defense door frame.

[0039] Embodiment 1

[0040] Referring to Figure 1 and Figure 2 The welding positioning device for the hinge plate of the civil air defense door frame comprises a support assembly 1, a pressing assembly 2, at least two limiting assemblies 3 and at least one fixing assembly 4, wherein the pressing assembly 2, the limiting assemblies 3 and the fixing assembly 4 are arranged on the support assembly 1.

[0041] Referring to Figure 1 The support assembly 1 comprises a support plate 11 and a support piece 12. In the embodiment, the support plate 11 is a rectangular plate, and the support piece 12 is located at the bottom of the support plate 11. The support piece 12 comprises four support rods 121, the four support rods 121 are arranged in a matrix, and the four support rods 121 are vertically arranged. The support rods 121 are perpendicular to the support plate 11, one end of the support rods 121 is welded to the support plate 11, and the four support rods 121 can support the support plate 11.

[0042] Referring to Figure 1, the pressing assembly 2 is located at the top of the support plate 11, and the pressing assembly 2 is located in the middle of the support plate 11. The pressing assembly 2 includes four power members 21 and multiple pressing members 22. The four power members 21 are spaced apart in the length direction of one side of the support plate 11. The power member 21 is a rotary lifting cylinder. The rotary lifting cylinder is vertically arranged, and the rotary lifting cylinder is perpendicular to the support plate 11. The cylinder body of the rotary lifting cylinder is fixedly connected to the support plate 11 by screws. The piston rod of the rotary lifting cylinder is facing away from the support plate 11. The pressing member 22 corresponds to the power member 21 one by one. The pressing member 22 includes a connecting rod 221 and two pressing rods 222. The piston of the rotary lifting cylinder The rod is welded to the connecting rod 221, and the connecting rod 221 is arranged perpendicularly to the rotary lifting cylinder. The two clamping rods 222 are each located at one end of the connecting rod 221, and the clamping rod 222 is arranged perpendicularly to the connecting rod 221. The two clamping rods 222 are both located on the side of the connecting rod 221 close to the support plate 11. The clamping rod 222 moves synchronously with the connecting rod 221. In the initial state, the setting direction of the connecting rod 221 is consistent with the distribution direction of the four rotary lifting cylinders, that is, the four connecting rods 221 are coaxially arranged. When the clamping rod 222 presses the hinge shaft 6, the setting direction of the connecting rod 221 is perpendicular to the distribution direction of the four rotary lifting cylinders, that is, the four connecting rods 221 are arranged parallel to each other.

[0043] Reference Figure 1 and Figure 2 The support plate 11 is provided with a plurality of placement slots 111 for placing the hinge plates 5. In this embodiment, there are four placement slots 111. Each of the four placement slots 111 is close to a corner of the support plate 11. The four placement slots 111 are divided into two groups. The two placement slots 111 on both sides of the rotary lifting cylinder are set as a group. A limiting area is left between the two placement slots 111 in each group of placement slots 111, and two rotary lifting cylinders are correspondingly provided in the limiting area.

[0044] Reference Figure 1 、 Figure 2 and Figure 3Each rotating lifting cylinder corresponds to two limiting assemblies 3, and the two limiting assemblies 3 are located on the sides of the rotating lifting cylinder respectively, the distribution direction of the two limiting assemblies 3 is perpendicular to the distribution direction of the two groups of placing grooves 111, the limiting assembly 3 comprises two limiting plates 31 and two fasteners 32, the two limiting plates 31 are distributed along the distribution direction of the four rotating lifting cylinders, the limiting plate 31 is arranged in parallel with the supporting plate 11, a limiting gap for limiting the hinge shaft 6 is left between the two limiting plates 31, the limiting plate 31 is slidingly connected to the supporting plate 11, and the two limiting plates 31 move towards or away from each other, the fixing hole 112 is formed in the supporting plate 11 close to the limiting plate 31, the waist-shaped hole 311 is formed on the limiting plate 31 along the sliding direction of the limiting plate 31, the fastener 32 corresponds to the limiting plate 31 one by one, the fastener 32 comprises a bolt 321 and a nut 322, the bolt 321 passes through the fixing hole 112 and the waist-shaped hole 311 in sequence and is threadedly connected with the nut 322, when it is necessary to fix the hinge shaft 6, the bolt 321 and the nut 322 are separated, the personnel moves the limiting plate 31, the two limiting plates 31 are fixed on the hinge shaft 6, and then the supporting plate 11 and the limiting plate 31 can be fixed through the bolt 321.

[0045] With reference to Figure 2 And Figure 3 In the embodiment, the number of the fixing assemblies 4 is four, one fixing assembly 4 corresponds to one placing groove 111, the supporting plate 11 is provided with a sliding groove 113 in the placing groove 111, the setting direction of the sliding groove 113 is consistent with the sliding direction of the limiting plate 31, the fixing assembly 4 comprises a clamping piece 41 and a driving piece 42, the clamping piece 41 comprises two clamping plates 411, the two clamping plates 411 are distributed along the setting direction of the sliding groove 113, and one end of the two clamping plates 411 extends into the sliding groove 113, the two clamping plates 411 are slidingly connected to the supporting plate 11, the two clamping plates 411 move towards or away from each other, and the two clamping plates 411 can clamp the hinge plate 5, the flexible pad 4111 is arranged on the side, away from each other, of the two clamping plates 411, the flexible pad 4111 is fixedly bonded to the clamping plate 411, and when the two clamping plates 411 clamp the hinge plate 5, the flexible pad 4111 is in contact with the hinge plate 5, so that the abrasion of the hinge plate 5 caused by clamping is reduced.

[0046] With reference to Figure 3The driving member 42 comprises a first bidirectional screw rod 421 and a handle 422. The first bidirectional screw rod 421 is located in the sliding groove 113, and the arrangement direction of the first bidirectional screw rod 421 is consistent with the arrangement direction of the sliding groove 113. The first bidirectional screw rod 421 is rotationally connected to the support plate 11 at both ends. The two clamping plates 411 are threadedly connected to one end of the first bidirectional screw rod 421 at one end of the sliding groove 113. The handle 422 is located at one end of the first bidirectional screw rod 421 close to the side edge of the support plate 11, and the handle 422 is welded to the first bidirectional screw rod 421. A person rotates the handle 422 to drive the first bidirectional screw rod 421 to rotate.

[0047] The implementation principle of the embodiment 1 is as follows: when it is necessary to weld the hinge leaves 5 of the civil air defense door frame, first, the hinge leaves 5 to be welded are moved to one of the placing grooves 111 in the same group. A person drives the driving member 42 according to the size of the hinge leaves 5. The driving member 42 drives the clamping member 41 to move, so that the hinge leaves 5 can be clamped and fixed by the clamping member 41. Then, the hinge shafts 6 are taken out. According to the design requirements, the hinge shafts 6 are placed at the corresponding positions of the hinge leaves 5, and the hinge shafts 6 are limited by the limiting plates 31. Then, according to the above operation, the other hinge leaf 5 to be welded is fixed in the other placing groove 111 in the same group. The power member 21 is started, and the rotating lifting cylinder drives the pressing member 22 to rotate and lift, so that the pressing member 22 can press the hinge shafts 6. After the fixing is completed, the hinge leaves 5 are welded. According to the above steps, the remaining hinge leaves 5 and hinge shafts 6 are fixed and welded.

[0048] When it is necessary to fix the hinge leaves 5 and the hinge shafts 6, a person rotates the handle 422 according to the size of the hinge leaves 5, so that the first bidirectional screw rod 421 is driven to rotate. At this time, the two clamping plates 411 move towards or away from each other, and the hinge leaves 5 are fixed by the two clamping plates 411. Then, according to the design requirements, the hinge shafts 6 are placed at the specified positions of the hinge leaves 5. A person separates the bolts 321 and the nuts 322, moves the limiting plates 31, and fixes the bolts 321 and the nuts 322, so as to fix the support plates 11 and the limiting plates 31. Then, the hinge shafts 6 are fixed by the pressing member 22.

[0049] Embodiment 2

[0050] Reference Figure 4 and Figure 5The embodiment is different from embodiment 1 in that the limiting assembly 3 further comprises a sliding piece 33 and two limiting pieces 34, four limiting grooves 114 are formed in the supporting plate 11 in the limiting area, the limiting grooves 114 correspond to the placing grooves 111 one by one, and the limiting grooves 114 are arranged along the distribution direction of the four rotating lifting air cylinders; the sliding piece 33 comprises a second bidirectional screw 331, two sliding blocks 332 and a handle 333; the second bidirectional screw 331 is located in the sliding groove 113, and the arrangement direction of the second bidirectional screw 331 is consistent with the arrangement direction of the sliding groove 113; the second bidirectional screw 331 is rotationally connected to the supporting plate 11 at both ends; the two sliding blocks 332 are threadedly connected to one end of the second bidirectional screw 331; the two sliding blocks 332 can move towards each other or away from each other; the top of the sliding block 332 is flush with the top of the supporting plate 11; and the handle 333 is located at one end of the second bidirectional screw 331 close to one side edge of the supporting plate 11, and is welded to the second bidirectional screw 331.

[0051] With reference to Figure 5 The limiting piece 34 corresponds to the sliding block 332 one by one, and the limiting piece 34 comprises two fixed plates 341 and two fixed screws 342; a sliding groove 3321 is formed in the top of the sliding block 332, and the arrangement direction of the sliding groove 3321 is consistent with the arrangement direction of the sliding groove 113; one side of the two fixed plates 341 extends into the sliding groove 3321, and the two fixed plates 341 are slidingly connected to the sliding block 332; the two fixed plates 341 can move towards each other or away from each other; the two fixed plates 341 fix the hinge shaft 6; the fixed screw 342 corresponds to the fixed plate 341 one by one; the fixed screw 342 is located on the side away from each other of the two fixed plates 341, and the arrangement direction of the fixed screw 342 is consistent with the sliding direction of the fixed plate 341; the fixed screw 342 is rotationally connected to the fixed plate 341 after penetrating through the sliding block 332; and the fixed screw 342 is threadedly connected to the sliding block 332; a person can drive the fixed plate 341 to move by rotating the fixed screw 342.

[0052] The implementation principle of embodiment 2 is as follows: when the hinge plate 5 and the hinge shaft 6 need to be fixed, a person rotates the handle 422 according to the size of the hinge plate 5, so as to drive the first bidirectional screw 421 to rotate, and the hinge plate 5 is fixed through the two clamping plates 411; then, the hinge shaft 6 is placed at the specified position of the hinge plate 5 according to the design requirement; a person rotates the handle 333, so as to drive the two sliding blocks 332 to move towards each other or away from each other; after the sliding blocks 332 move to appropriate positions, a person rotates the fixed screw 342, so as to drive the fixed plate 341 to move, and the two fixed plates 341 limit and fix the hinge shaft 6; and then the hinge shaft 6 is fixed through the pressing piece 22.

[0053] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A welding and positioning device for hinge plates of civil air defense door frames, characterized by: The invention comprises a support assembly (1), a pressing assembly (2), at least two limit assemblies (3) and at least one fixing assembly (4); the support assembly (1) comprises a support plate (11); the pressing assembly (2) is located on the top of the support plate (11); the pressing assembly (2) is connected to the support plate (11); and the pressing assembly (2) is used to press the hinge shaft (6) and the hinge plate (5); The support plate (11) is provided with at least one placement groove (111) for placing the hinge plate (5), and the two limiting components (3) are distributed along the length direction of one side of the support plate (11). The limiting component (3) is used to limit and fix the hinge shaft (6), and the fixing component (4) is located in the placement groove (111). The support plate (11) is provided with a sliding groove (113) in the placement groove (111), and the setting direction of the sliding groove (113) is Consistent with the distribution direction of the two limit assemblies (3), the fixing assembly (4) includes a clamping member (41), and the clamping member (41) includes two clamping plates (411). One end of the two clamping plates (411) extends into the sliding groove (113). The two clamping plates (411) are slidably connected to the support plate (11). The two clamping plates (411) move toward or away from each other, and the two clamping plates (411) can clamp the hinge plate (5).

2. The hinge plate welding and positioning device for a civil air defense door frame according to claim 1, characterized in that: The limiting assembly (3) includes two limiting plates (31) and two fasteners (32). The two limiting plates (31) are distributed along the setting direction of the sliding groove (113). The limiting plates (31) are arranged in parallel with the support plate (11). A limiting gap for limiting the hinge shaft (6) is left between the two limiting plates (31). The limiting plates (31) are slidably connected to the support plate (11). The support plate (11) is provided with a fixing hole (112) near the limiting plate (31). The limiting plate (31) is provided with a waist-shaped hole (311) along its sliding direction. The fastener (32) corresponds to the limiting plate (31) one by one, and the fastener (32) includes a bolt (321). The bolt (321) passes through the fixing hole (112) and the waist-shaped hole (311) in sequence and then engages with a nut thread, thereby fixing the support plate (11) and the limiting plate (31).

3. The hinge plate welding and positioning device for a civil air defense door frame according to claim 1, characterized in that: The fixing assembly (4) also includes a driving member (42), and the driving member (42) includes a first bidirectional screw (421) and a handle (422), the first bidirectional screw (421) is located in the sliding groove (113), the setting direction of the first bidirectional screw (421) is consistent with the setting direction of the sliding groove (113), both ends of the first bidirectional screw (421) are rotatably connected to the support plate (11), the two clamping plates (411) are each threadedly connected to one end of the first bidirectional screw (421), and the handle (422) is connected to one end of the first bidirectional screw (421).

4. The hinge plate welding and positioning device for a civil air defense door frame according to claim 1, characterized in that: The clamping assembly (2) is located in the middle of the support plate (11), and the clamping assembly (2) includes four power members (21) and a plurality of clamping members (22). The four power members (21) are spaced apart along the setting direction of the sliding groove (113). The power members (21) are connected to the support plate (11), and the power members (21) are connected to the clamping members (22) in a one-to-one correspondence. The clamping members (22) are used to clamp the hinge shaft (6) and the hinge plate (5). The support plate (11) is provided with four placement slots (111) for placing the hinge plates (5), and the four placement slots (111) are each close to a corner of the support plate (11). The four placement slots (111) are divided into two groups, and the two placement slots (111) on both sides of the power member (21) are set as one group. A limiting area is left between the two placement slots (111) in each group of the placement slots (111), and two power members (21) are correspondingly provided in the limiting area. Each power member (21) corresponds to two limiting assemblies (3), and the two limiting assemblies (3) are each located on one side of the power member (21). The distribution direction of the two limiting assemblies (3) is perpendicular to the distribution direction of the two groups of placement slots (111).

5. The hinge plate welding and positioning device for a civil air defense door frame according to claim 4, characterized in that: The limiting assembly (3) further includes a sliding member (33) and two limiting members (34); the support plate (11) is provided with four limiting grooves (114) in the limiting area; the limiting grooves (114) correspond one-to-one to the placement grooves (111); the setting direction of the limiting grooves (114) is consistent with the setting direction of the sliding grooves (113); the sliding member (33) includes two sliders (332); both sliders (332) are located in the limiting grooves (114); and the two sliders (332) are slidably arranged on the support plate (11); The limiting member (34) corresponds to the slider (332) one by one, and the limiting member (34) includes two fixed plates (341) and two fixing screws (342). A sliding groove (3321) for the sliding of the fixed plate (341) is provided on the top of the slider (332). The setting direction of the sliding groove (3321) is consistent with the setting direction of the sliding groove (113). The two fixed plates (341) fix the hinge shaft (6). The fixing screws (342) correspond to the fixed plates (341) one by one. The fixing screws (342) are located on the side away from each other of the two fixed plates (341). After the fixing screws (342) are passed through the slider (332), they are rotatably connected to the fixing plate (341). The fixing screws (342) are threadedly connected to the slider (332). The fixing screws (342) are used to push the fixing plate (341) to move.

6. The hinge plate welding and positioning device for a civil air defense door frame according to claim 5, characterized in that: The top of the sliding block (332) is flush with the top of the supporting plate (11).

7. The hinge plate welding and positioning device for a civil air defense door frame according to claim 5, characterized in that: The sliding member (33) also includes a second bidirectional screw (331) and a handle (333), wherein the second bidirectional screw (331) is located in the sliding groove (113), and the setting direction of the second bidirectional screw (331) is consistent with the setting direction of the sliding groove (113), and both ends of the second bidirectional screw (331) are rotatably connected to the support plate (11), and the two sliders (332) are each threadedly connected to one end of the second bidirectional screw (331), and the handle (333) is connected to one end of the second bidirectional screw (331) to drive the second bidirectional screw (331) to rotate.

8. The hinge plate welding and positioning device for a civil air defense door frame according to claim 3, characterized in that: A flexible pad (4111) is fixed on one side of the two clamping plates (411) close to each other.

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