Positioning tool for hydraulic support base and application method thereof

Abstract

The present application relates to the technical field of hydraulic support manufacturing, and particularly relates to a positioning tool for a hydraulic support base and an application method thereof. The hydraulic support base comprises two main rib pre-assemblies arranged symmetrically, the main rib pre-assembly comprises a main rib plate, a pasting plate and two guide bars, the positioning tool comprises a first positioning assembly and a second positioning assembly, the first positioning assembly is detachably connected with the main rib plate and is used for positioning the pasting plate and the two guide bars simultaneously, a sliding groove capable of being connected with a hydraulic support lifting base device is formed between the two guide bars, the center of the second mounting hole is located on the center line of the sliding groove, and the second positioning assembly is detachably connected with the two main rib pre-assemblies and is used for positioning the two main rib pre-assemblies. The positioning tool can accurately ensure the concentricity of the two main rib plates, thereby improving the assembly precision of the entire hydraulic support base, simplifying the positioning step in the assembly process, reducing the time and difficulty of manual adjustment, improving the assembly efficiency, and meeting the demand of large-scale production.

Description

Technical Field

[0001] This invention relates to the field of hydraulic support manufacturing technology, and in particular to a positioning fixture for a hydraulic support base and its application method. Background Technology

[0002] Hydraulic supports are key equipment in fully mechanized coal mining faces, and the stability and reliability of their base structure play a crucial role in the overall performance of the hydraulic support.

[0003] Traditional hydraulic support base assembly methods rely on manual marking of the positioning holes and lifting tracks on the inner main rib plate to form the main rib pre-assemblies. This method depends on operator experience and uses a simple ruler for measurement, resulting in inconsistent batch dimensions and difficulty in ensuring the dimensional accuracy of the main rib pre-assemblies. During the assembly of the hydraulic support base, the assembly precision of the lifting components within the inner main ribs is difficult to guarantee, especially in the positioning of the two inner main ribs. Concentricity deviations and asynchronous sliding tracks can easily occur, hindering the installation of the hydraulic support and increasing the difficulty of installing the lifting components. This often results in the lifting components being forcibly installed, creating a hazard during use. Furthermore, uneven stress during use can cause hole damage, high sliding resistance, and even safety accidents. Traditional methods have low installation efficiency and cannot meet the needs of large-scale production. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a positioning fixture for hydraulic support base and its application method, which solves the technical problems of low assembly accuracy and low installation efficiency of hydraulic support base.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the main technical solutions adopted by the present invention include:

[0008] In a first aspect, embodiments of the present invention provide a positioning fixture for a hydraulic support base. The hydraulic support base includes two symmetrically arranged main rib pre-assemblies with a gap between them. The main rib pre-assemblies each include a main rib plate, a mounting plate disposed on the main rib plate, and two guide strips arranged parallel to the main rib plate. A first mounting hole is formed at the upper end of the main rib plate, and the two guide strips are located at the lower end of the mounting plate. The positioning fixture includes a first positioning component and a second positioning component. The first positioning component is detachably connected to the main rib plate and is used to simultaneously position the mounting plate and the two guide strips, aligning the second mounting hole of the mounting plate with the first mounting hole of the main rib plate, and forming a groove between the two guide strips that can connect to a hydraulic support lifting device. The center of the second mounting hole is located on the center line of the groove. The second positioning component is detachably connected to the first mounting hole, the second mounting hole, and the groove of the two main rib pre-assemblies and is used to position the two main rib pre-assemblies.

[0009] Preferably, the first positioning component includes a detachably connected positioning plate and a first positioning shaft; the positioning plate is arranged parallel to the main stiffener plate and the bottom ends of the two are aligned, the two sides of the lower end of the positioning plate are used to position two guide strips respectively, and the two contact surfaces of the positioning plate and the two guide strips are parallel planes; a positioning hole is opened at the upper end of the positioning plate, and the first positioning shaft can pass through the positioning hole, the first mounting hole and the second mounting hole simultaneously to position the mounting plate.

[0010] Preferably, the positioning hole of the positioning plate is clearance-fitted with the first positioning shaft; the first positioning shaft is clearance-fitted with the first mounting hole of the main stiffener plate and the second mounting hole of the mounting plate.

[0011] Preferably, the diameters of the first mounting hole and the second mounting hole are the same as the diameter of the positioning hole.

[0012] Preferably, the two sides of the positioning plate form a stepped structure above the contact surface with the guide strip, and the width of the upper part of the positioning plate is smaller than the width of the lower part of the positioning plate.

[0013] Preferably, the second positioning component includes a second positioning shaft, a connecting shaft, and a positioning block; the second positioning shaft and the positioning block are arranged parallel to each other, and a first connecting hole and a second connecting hole are respectively opened at the middle position of the second positioning shaft and the positioning block. The connecting shaft passes through the first connecting hole and the second connecting hole to be detachably connected to the second positioning shaft and the positioning block; the second positioning shaft can pass through the first mounting holes of the two main stiffening plates and the corresponding second mounting holes of the mounting plate, and is detachably connected to the two main stiffening plates. The positioning block can be set within the spacing, and the two ends of the positioning block are respectively engaged with the sliding grooves on the two main stiffening plates. The two end faces of the positioning block abut against the surfaces of the two main stiffening plates to determine the spacing between the two main stiffening plates.

[0014] Preferably, the second positioning shaft is clearance-fitted with the first mounting hole of the main stiffening plate; the connecting shaft is clearance-fitted with the first connecting hole of the second positioning shaft and the second connecting hole of the positioning block.

[0015] Preferably, the positioning block is fitted with the slide groove with a clearance so that the positioning block can move along the length of the slide groove.

[0016] Secondly, embodiments of the present invention provide an application method for a positioning fixture for a hydraulic support base, applied to the positioning fixture for a hydraulic support base in the above-mentioned technical solution, the application method including:

[0017] S1. Cutting and blanking to form the main stiffening plate, the side plate and two guide strips, and cutting the first mounting hole and the second mounting hole on the main stiffening plate and the side plate respectively;

[0018] S2. Assemble and position the main stiffening plate, the cladding plate, and the two guide strips using the first positioning component;

[0019] S3. Weld the mounting plate and two guide strips to the main rib plate to form the main rib pre-assembly, and remove the first positioning assembly;

[0020] S4. Position and install the two symmetrically arranged main reinforcement pre-assemblies using the second positioning component;

[0021] S5. Fix the two main reinforcement pre-assemblies and remove the second positioning assembly.

[0022] Preferably, in step S1, the cutting method is either flame cutting or laser cutting.

[0023] (III) Beneficial Effects

[0024] The beneficial effects of this invention are:

[0025] This invention discloses a positioning fixture and its application method for a hydraulic support base. By employing a first positioning component to position each component in the main rib pre-assembly, and a second positioning component to position the two main rib pre-assemblies, the concentricity of the two main rib plates of the hydraulic support base can be accurately ensured. This improves the assembly accuracy of the entire hydraulic support base, resulting in more uniform stress distribution during use, enhancing its stability and reliability, and ensuring normal operation during subsequent lifting. The first and second positioning components simplify the positioning steps in the assembly process, reducing the time and difficulty of manual adjustments, making the assembly process more standardized and regulated, thereby improving assembly efficiency and meeting the needs of large-scale production. Furthermore, the first positioning component makes the positioning and fixing of the main rib plates more convenient, eliminating the need for complex manual adjustments by operators, reducing labor intensity, and also reducing assembly errors caused by human factors. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the first positioning component of the positioning fixture for the hydraulic support base according to Embodiment 1 of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of the second positioning component of the positioning fixture for the hydraulic support base according to Embodiment 1 of the present invention;

[0028] Figure 3 This is a front view schematic diagram of the main rib pre-assembly assembled using the positioning tooling for the hydraulic support base according to Embodiment 1 of the present invention;

[0029] Figure 4 for Figure 3 The diagram shown is a top view of the main reinforcement pre-assembly.

[0030] Figure 5 This is a schematic diagram of the installation of the first positioning component of the positioning fixture for the hydraulic support base according to Embodiment 1 of the present invention;

[0031] Figure 6 This is a schematic diagram of the installation of the second positioning component of the positioning fixture for the hydraulic support base according to Embodiment 1 of the present invention;

[0032] Figure 7 This is a cross-sectional schematic diagram of the installation of the second positioning component of the positioning fixture for the hydraulic support base according to Embodiment 1 of the present invention.

[0033] Figure 8 This is a top view of the lifting shoe cover of the positioning fixture for the hydraulic support base according to Embodiment 1 of the present invention.

[0034] Figure 9 for Figure 8 A cross-sectional view of the mid-sole shoe cover at point AA;

[0035] Figure 10 This is a schematic diagram of the overall structure of the hydraulic support base of the positioning fixture for the hydraulic support base according to Embodiment 2 of the present invention.

[0036] [Explanation of Labels in the Attached Image]

[0037] 1: Main reinforcement pre-assembly; 11: Main reinforcement plate; 111: First mounting hole; 12: Plate; 121: Second mounting hole; 13: Guide strip; 14: Slide groove;

[0038] 2: First positioning component; 21: Positioning plate; 211: Positioning hole; 22: First positioning shaft;

[0039] 3: Second positioning component; 31: Second positioning axis; 32: Connecting axis; 33: Positioning block;

[0040] 4: Lifting shoe cover; 41: Sliding block;

[0041] 5: Fasteners. Detailed Implementation

[0042] To better explain and facilitate understanding of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] Example 1:

[0044] like Figure 1 and Figure 2 As shown, this embodiment provides a positioning fixture for a hydraulic support base, the positioning fixture including a first positioning component 2 and a second positioning component 3.

[0045] The hydraulic support base includes two symmetrically arranged main rib pre-assemblies 1, with a spacing between the two main rib pre-assemblies 1. Figure 3 and Figure 4 A main rib pre-assembly 1 is shown, comprising a main rib plate 11, a mounting plate 12 disposed on the main rib plate 11, and two guide bars 13 disposed parallel to the main rib plate 11, wherein the two guide bars 13 are symmetrically arranged. The main rib pre-assembly 1 of the hydraulic support base is composed of the main rib plate 11, the mounting plate 12, and the guide bars 13 as an integral device, and the main rib pre-assembly 1 is an effective connecting device for controlling the lifting device of the hydraulic support. The positioning fixture provided in the embodiment solves the positioning problems of the mounting plate 12 and the guide bars 13 when installing them on the main rib plate 11, as well as the positioning problems when connecting two main rib pre-assemblies 1.

[0046] like Figure 5 As shown, the first positioning component 2 is detachably connected to the main stiffening plate 11 and is used to simultaneously position the mounting plate 12 and the two guide strips 13 so that the second mounting hole 121 of the mounting plate 12 is aligned with the first mounting hole 111 of the main stiffening plate 11, and a groove 14 is formed between the two guide strips 13 that can be connected to the hydraulic support lifting device. The center of the second mounting hole 121 is located on the center line of the groove 14.

[0047] Specifically, such as Figure 1 As shown, the first positioning component 2 includes a detachably connected positioning plate 21 and a first positioning shaft 22. The positioning plate 21 is arranged parallel to the main rib plate 11 and their bottom ends are aligned. The two sides of the lower end of the positioning plate 21 are used to position two guide strips 13, and the two contact surfaces of the positioning plate 22 and the two guide strips 13 are parallel planes. A positioning hole 211 is opened at the upper end of the positioning plate 21. The first positioning shaft 22 can pass through the positioning hole 211, the first mounting hole 111, and the second mounting hole 121 simultaneously to position the mounting plate 12. Since the first positioning component 2 is used to position each component in the main rib pre-assembly 1, the positioning and fixing of the main rib plate 11 is more convenient. Operators do not need to perform complex manual adjustments, reducing labor intensity and reducing assembly errors caused by human factors, thereby improving the product size qualification rate.

[0048] It should be noted that the width below the positioning plate 21 can effectively control the spacing between the two guide strips 13.

[0049] Preferably, such as Figure 3 As shown, the mounting plate 12 is circular. Due to the symmetry of the circular structure, it can perfectly match the first positioning axis 22 of the first positioning component 2, so as to realize the quick alignment of the main stiffener plate 11 and the mounting plate 12, avoid the angle deviation during assembly, and the circular edge has no directional restriction, so there is no need to adjust the angle during installation, thus improving the assembly efficiency.

[0050] Preferably, in order to facilitate the installation and coordination of the positioning plate 21, the first positioning shaft 22 and the main stiffening plate 11, the positioning hole 211 of the positioning plate 21 is clearance-fitted with the first positioning shaft 22, and the first positioning shaft 22 is clearance-fitted with the first mounting hole 111 of the main stiffening plate 11 and the second mounting hole 121 of the mounting plate 12.

[0051] Preferably, the diameters of the first mounting hole 111, the second mounting hole 121, and the positioning hole 211 are the same. The consistent diameters of the three holes ensure that the first positioning shaft 22 can simultaneously and tightly penetrate all the holes, eliminating assembly gaps. Furthermore, the matching diameters of the first positioning shaft 22 and the holes force the center lines of the main stiffening plate 11, the mounting plate 12, and the positioning plate 21 to coincide, solving the alignment problem when stacking multiple layers.

[0052] Preferably, in order to reduce the weight of the positioning plate 21 and facilitate its handling and installation, such as... Figure 1 As shown, the two sides of the positioning plate 21 form a stepped structure above the contact surface with the guide strip 13, and the width of the upper part of the positioning plate 21 is smaller than the width of the lower part of the positioning plate 21.

[0053] like Figure 6 As shown, the second positioning component 3 is detachably connected to the first mounting hole 111, the second mounting hole 121 and the slide groove 14 of the two main reinforcement pre-components 1, and is used to position the two main reinforcement pre-components 1.

[0054] Specifically, such as Figure 2As shown, the second positioning component 3 includes a second positioning shaft 31, a connecting shaft 32, and a positioning block 33. The second positioning shaft 31 and the positioning block 33 are arranged parallel to each other. A first connecting hole and a second connecting hole are respectively opened at the middle position of the second positioning shaft 31 and the positioning block 33. The connecting shaft 32 passes through the first connecting hole and the second connecting hole to be detachably connected to the second positioning shaft 31 and the positioning block 33. The second positioning shaft 31 can pass through the first mounting hole 111 of the two main stiffening plates 11 and the corresponding second mounting hole 121 of the mounting plate 12, and is detachably connected to the two main stiffening plates 11. The positioning block 33 can be set within the gap. The two ends of the positioning block 33 are respectively engaged with the sliding grooves 14 on the two main stiffening plates 11, and the two end faces of the positioning block 33 respectively abut against the surface of the two main stiffening plates 11 to determine the gap between the two main stiffening plates 11. The second positioning component 3 positions the two main rib pre-components 1, accurately ensuring the concentricity of the two main rib plates 11 of the hydraulic support base. This improves the assembly accuracy of the entire hydraulic support base, making the hydraulic support more evenly stressed during use, enhancing its stability and reliability, and ensuring normal operation during subsequent lifting. The first positioning component 2 and the second positioning component 3 simplify the positioning steps in the assembly process, reducing the time and difficulty of manual adjustments, making the assembly process more standardized and regulated, thereby improving assembly efficiency and meeting the needs of large-scale production.

[0055] Preferably, in order to facilitate the installation and cooperation between the second positioning component 3 and the main stiffening plate 11, the second positioning shaft 31 is clearance-fitted with the first mounting hole 111 of the main stiffening plate 11, and the connecting shaft 32 is clearance-fitted with the first connecting hole of the second positioning shaft 31 and the second connecting hole of the positioning block 33.

[0056] Preferably, in order to simulate whether the hydraulic support lifting device is properly installed in the position of the second positioning component 3, the positioning block 33 is fitted with the slide groove 14 with a clearance so that the positioning block 33 can move along the length direction of the slide groove 14, and the positioning block 33 has the same size as the component in the hydraulic support lifting device. Since the positioning block 33 can move along the length direction of the slide groove 14, it can be verified whether the hydraulic support lifting device matches the two main rib pre-components 1 after assembly, thereby further improving the assembly accuracy.

[0057] The hydraulic support lifting device is installed at the position of the second positioning component 3 to lift the hydraulic support base, facilitating support relocation operations. For example... Figure 8 and Figure 9As shown, the hydraulic support lifting device includes a lifting shoe cover 4, which can be directly connected to the hydraulic support base and is a wear-resistant component that transmits lifting force. The lifting shoe cover 4 is a symmetrical structure, with sliding blocks 41 symmetrically arranged at both ends. The two sliding blocks 41 can slide within the groove 14 of the hydraulic support base. The width of the two sliding blocks 41 is the same as the width of the positioning block 33 in the second positioning component 3. Therefore, the second positioning component 3 can simulate whether the lifting shoe cover 4 is properly installed, improving the installation accuracy of the hydraulic support lifting device. The lifting shoe cover 4 connects to other components of the hydraulic support lifting device to lift the hydraulic support base.

[0058] It should be noted that this embodiment only provides a partial component of the hydraulic support lifting device and the hydraulic support base connection. Other components of the hydraulic support lifting device are existing technologies and will not be described in detail here.

[0059] To meet the requirements of different hydraulic support sizes, the dimensions of the first positioning component 2 and the second positioning component 3 can be adjusted, and each component can be assembled arbitrarily for flexible assembly and use.

[0060] Example 2:

[0061] This embodiment provides an application method for a positioning fixture for a hydraulic support base, applied to the positioning fixture for a hydraulic support base in Embodiment 1. The application method includes:

[0062] S1. Cutting and blanking to form a main stiffening plate 11, a mounting plate 12 and two guide strips 13, while cutting the main stiffening plate 11 and the mounting plate 12 to form a first mounting hole 111 and a second mounting hole 121 respectively.

[0063] Preferably, the cutting method is either flame cutting or laser cutting.

[0064] Preferably, in order to ensure installation accuracy, the bottom of the main stiffening plate 11 is inspected after welding during cutting.

[0065] To facilitate welding of guide strip 13 to main stiffener plate 11 and to fill the welding position between the two, bevels are cut on guide strip 13. Since the two guide strips 13 are two symmetrical parts, the two guide strips 13 are leveled when cutting the guide strips 13 to ensure the straightness of the guide strips 13.

[0066] S2. The main stiffening plate 11, the mounting plate 12 and the two guide strips 13 are assembled and positioned by the first positioning component 2.

[0067] The mounting plate 12 and the positioning plate 21 are sequentially arranged on the main stiffening plate 11. The mounting plate 12 is located between the positioning plate 21 and the main stiffening plate 11. The positioning plate 21, the mounting plate 12 and the main stiffening plate 11 are coaxially positioned by the first positioning shaft 22. Two guide bars 13 are respectively arranged on both sides below the guide bars 13.

[0068] S3. Weld the mounting plate 12 and the two guide strips 13 to the main stiffener plate 11 to form the main stiffener pre-assembly 1, and remove the first positioning assembly 2.

[0069] S4. Position and install the two symmetrically arranged main reinforcement pre-components 1 using the second positioning component 3.

[0070] The second positioning shaft 31 of the second positioning component 3 provides coaxial positioning for the two main reinforcement pre-components 1. The positioning block 33 of the second positioning component 3 is located between the two main reinforcement plates 11 and within the two sliding grooves 14. The connecting shaft 32 passes through the first connecting hole of the second positioning shaft 31 and the second connecting hole of the positioning block 33 to connect the second positioning shaft 31 and the positioning block 33.

[0071] S5. Fix the two main reinforcement pre-assemblies 1, remove the second positioning assembly 3, and install the hydraulic support lifting device.

[0072] like Figure 10 As shown, the upper ends of the two main reinforcement pre-assemblies 1 are fixed by fastener 5. Fastener 5 is existing technology and will not be described in detail here.

[0073] It should be noted that fixing the two main reinforcement pre-assemblies 1 does not prevent the removal of the second positioning assembly 3.

[0074] The lifting shoe cover 4 of the hydraulic support lifting device is installed between the two main stiffening plates 11, and the two sliding blocks 41 of the lifting shoe cover 4 are respectively located in the two sliding grooves 14.

[0075] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0076] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0077] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," or "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0078] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0079] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A positioning fixture for a hydraulic support base, the hydraulic support base comprising two symmetrically arranged main rib pre-assemblies (1), wherein a spacing is provided between the two main rib pre-assemblies (1), characterized in that, Each main reinforcement pre-assembly (1) includes a main reinforcement plate (11), a mounting plate (12) disposed on the main reinforcement plate (11), and two guide strips (13) disposed parallel to the main reinforcement plate (11). A first mounting hole (111) is opened at the upper end of the main reinforcement plate (11), and the two guide strips (13) are located at the lower end of the mounting plate (12). The positioning fixture includes a first positioning component (2) and a second positioning component (3); The first positioning component (2) is detachably connected to the main stiffening plate (11) and is used to simultaneously position the patch plate (12) and the two guide strips (13) so that the second mounting hole (121) of the patch plate (12) is aligned with the first mounting hole (111) of the main stiffening plate (11) and a groove (14) is formed between the two guide strips (13) that can be connected to the hydraulic support lifting device. The center of the second mounting hole (121) is located on the center line of the groove (14). The first positioning component (2) includes a detachably connected positioning plate (21) and a first positioning shaft (22); the positioning plate (21) is arranged parallel to the main rib plate (11) and their bottom ends are aligned; the two sides of the lower end of the positioning plate (21) are respectively used to position the two guide strips (13), and the two contact surfaces of the positioning plate (21) and the two guide strips (13) are parallel planes; the upper end of the positioning plate (21) is provided with a positioning hole (211), and the first positioning shaft (22) can pass through the positioning hole (211), the first mounting hole (111) and the second mounting hole (121) at the same time to position the patch plate (12). The second positioning component (3) is detachably connected to the first mounting hole (111), the second mounting hole (121) and the slide groove (14) of the two main reinforcement pre-components (1) for positioning the two main reinforcement pre-components (1). The second positioning component (3) includes a second positioning shaft (31), a connecting shaft (32), and a positioning block (33); the second positioning shaft (31) is arranged parallel to the positioning block (33), and a first connecting hole and a second connecting hole are respectively opened at the middle positions of the second positioning shaft (31) and the positioning block (33), and the connecting shaft (32) passes through the first connecting hole and the second connecting hole to be detachably connected to the second positioning shaft (31) and the positioning block (33); the second positioning shaft (31) can pass through both the second and third positioning shafts. The first mounting hole (111) of the main stiffening plate (11) and the second mounting hole (121) of the corresponding mounting plate (12) are detachably connected to the two main stiffening plates (11). The positioning block (33) can be set within the spacing. The two ends of the positioning block (33) are respectively engaged with the sliding groove (14) on the two main stiffening plates (11). The two end faces of the positioning block (33) respectively abut against the surfaces of the two main stiffening plates (11) to determine the spacing between the two main stiffening plates (11). The positioning block (33) is fitted with the slide groove (14) with a clearance so that the positioning block (33) can move along the length direction of the slide groove (14).

2. The positioning fixture for a hydraulic support base as described in claim 1, characterized in that: The positioning hole (211) of the positioning plate (21) is clearance-fitted with the first positioning shaft (22); The first positioning shaft (22) is clearance-fitted with the first mounting hole (111) of the main stiffening plate (11) and the second mounting hole (121) of the mounting plate (12).

3. The positioning fixture for a hydraulic support base as described in claim 1, characterized in that: The diameter of the first mounting hole (111), the diameter of the second mounting hole (121), and the diameter of the positioning hole (211) are the same.

4. The positioning fixture for a hydraulic support base as described in claim 1, characterized in that: The two sides of the positioning plate (21) form a stepped structure above the contact surface with the guide strip (13), and the width above the positioning plate (21) is smaller than the width below the positioning plate (21).

5. The positioning fixture for a hydraulic support base as described in claim 1, characterized in that: The second positioning shaft (31) is clearance-fitted with the first mounting hole (111) of the main stiffening plate (11); The connecting shaft (32) is clearance-fitted with the first connecting hole of the second positioning shaft (31) and the second connecting hole of the positioning block (33).

6. A method for applying a positioning fixture for a hydraulic support base, characterized in that, The method of using the positioning fixture for the hydraulic support base as described in any one of claims 1-5 includes: S1. Cutting and blanking to form the main stiffening plate (11), the mounting plate (12) and the two guide strips (13), while cutting the first mounting hole (111) and the second mounting hole (121) on the main stiffening plate (11) and the mounting plate (12) respectively. S2. The main stiffening plate (11), the mounting plate (12), and the two guide bars (13) are assembled and positioned by the first positioning component (2); the mounting plate (12) and the positioning plate (21) are sequentially arranged on the main stiffening plate (11), the mounting plate (12) is located between the positioning plate (21) and the main stiffening plate (11), and the positioning plate (21), the mounting plate (12), and the main stiffening plate (11) are coaxially positioned by the first positioning shaft (22), and the two guide bars (13) are respectively arranged on both sides below the positioning plate (21); S3. Weld the plate (12) and the two guide strips (13) to the main rib plate (11) to form the main rib pre-assembly (1), and remove the first positioning assembly (2). S4. The two symmetrically arranged main reinforcement pre-assemblies (1) are positioned and installed by the second positioning component (3); the second positioning shaft (31) is used to coaxially position the two main reinforcement pre-assemblies (1); the positioning block (33) is disposed between the two main reinforcement plates (11) and located in the two sliding grooves (14); the connecting shaft (32) passes through the first connecting hole of the second positioning shaft (31) and the second connecting hole of the positioning block (33) to connect the second positioning shaft (31) and the positioning block (33). S5. Fix the two main reinforcement pre-assemblies (1) and remove the second positioning assembly (3).

7. The application method of the positioning fixture for the hydraulic support base as described in claim 6, characterized in that: In step S1, the cutting method is either flame cutting or laser cutting.

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