A manufacturing method and tooling assembly for a hydraulic support leg protector

Abstract

This invention relates to the field of hydraulic support manufacturing technology, and more particularly to a manufacturing method and tooling assembly for a hydraulic support sidewall. The method includes the following steps: placing the top plates of two sidewalls against each other and fixing the outer edges of the top plates along the extension direction of the main reinforcement bars; positioning the main reinforcement bars to ensure that the hinge holes of each main reinforcement bar are coaxial; and welding the main reinforcement bars to the top plates sequentially from both sides towards the center. By fixing the outer edges of the top plates of the two sidewalls against each other before welding the main reinforcement bars, the overall deformation of the top plate during the welding process can be effectively reduced. The method of welding the main reinforcement bars sequentially from both sides towards the center ensures a symmetrical distribution of welding stress, reduces the concentration of welding heat input to the edge of the top plate, and further suppresses warping deformation of the top plate.

Description

Technical Field

[0001] This invention relates to the field of hydraulic support manufacturing technology, and in particular to a manufacturing method and tooling assembly for a hydraulic support sidewall. Background Technology

[0002] Hydraulic support walls are an important component of the support system for fully mechanized coal mining faces. Their primary function is to provide auxiliary support to the coal face after the coal mining machine has cut the coal, preventing coal face collapse that could damage equipment or injure personnel. The support device is typically driven by a hydraulic cylinder. Its rear end connects to the roof beam, remaining flush against it in the retracted state; its front end contacts the coal face, providing stable support in the extended state, thus serving as auxiliary support. The structural performance of the support wall directly affects the overall safety and reliability of the hydraulic support system.

[0003] In the manufacturing process of the side rails, the positioning accuracy during assembly and the welding process parameters are key factors affecting their final functionality. Traditional side rail structures are relatively simple, with a small number of plates. Therefore, during manufacturing, operators typically use a marking-and-positioning method for assembly. However, this positioning method has significant limitations, especially for critical components such as the ear plates connecting to the top beam, where positioning accuracy is difficult to guarantee. Misalignment during assembly will result in insufficient travel when the side rail retracts, preventing a tight fit with the top beam and affecting its normal function. In severe cases, batch rework may be necessary, hindering production progress.

[0004] Furthermore, with the increasing complexity of coal mining conditions, high tensile strength materials are often used in the support structure to meet the requirements of strong support. During extensive welding operations, due to concentrated heat input and residual welding stress, the roof plate of the support is prone to torsional deformation, making it difficult to meet the flatness design requirements, and post-weld curling of the roof plate and the outer main reinforcement is common. To address these deformation problems, existing manufacturing processes typically use post-processing shaping methods for correction, which is complex and requires the use of shaping equipment for local adjustments to the deformed areas. However, this method is not only labor-intensive and inefficient, but the correction process is also difficult to control precisely. If the applied load exceeds the structure's bearing capacity, it can easily lead to weld cracking, or even product scrapping, posing a high risk to quality and production losses.

[0005] In summary, the existing manufacturing process for protective sleeves has significant shortcomings in terms of positioning and assembly accuracy and welding deformation control. There is an urgent need to propose a manufacturing method and corresponding tooling components that can effectively improve assembly accuracy and control welding deformation. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a manufacturing method and tooling assembly for a hydraulic support guard, which solves the technical problem that the edges are easily twisted and deformed during the manufacturing of existing hydraulic support guards.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the main technical solutions adopted by the present invention include:

[0010] A method for manufacturing a hydraulic support sidewall includes at least the following steps:

[0011] The top plates of the two side walls are fitted together and the outer edge of the top plates is fixed along the extension direction of the main reinforcement of the side walls.

[0012] Position the main reinforcement bars to ensure that the hinge holes of each main reinforcement bar are coaxial;

[0013] The main reinforcing bars are welded to the top plate sequentially from both sides toward the center.

[0014] The method for locating the main reinforcement bars includes the following steps:

[0015] Draw lines on the surface of the top slab to determine the center line of the top slab width and the positions of multiple main reinforcement bars;

[0016] After passing the optical axis through the hinge hole of the main rib and the positioning hole of the positioning plate, and keeping the corresponding hinge holes of multiple main ribs coaxial, place the main rib at the marked position on the top plate and fix it initially by spot welding.

[0017] The welding method is gas metal arc welding, and the weld seam is formed sequentially from the inside out by the root pass, fill pass, and cover pass.

[0018] The current intensity for the root pass welding is 260-310A, the arc voltage is 25-30V, the welding speed is 4-8mm / s, and the heat input is 0.8-1.1KJ / mm.

[0019] The filler welding has a current intensity of 280-330A, an arc voltage of 29-33V, a welding speed of 8-12mm / s, and a heat input of 1.0-1.3KJ / mm.

[0020] The current intensity for the cover weld is 270-320A, the arc voltage is 28-32V, the welding speed is 5-9mm / s, and the heat input is 0.9-1.2KJ / mm.

[0021] It also includes: after removing the process clips, grinding the weld beads and slag, checking the flatness of the top plate, and checking the coaxiality by inserting the optical axis into the hinge holes on each main rib.

[0022] A tooling assembly for manufacturing a hydraulic support sidewall includes: a process clip for fixing the outer edge of the top plate of the sidewall, and a positioning assembly for keeping the hinge holes of multiple main ribs coaxial.

[0023] The process clip has a plate-like structure, and a slot is provided on one side of the process clip, the width of which gradually decreases from the outside to the inside;

[0024] The positioning component includes a positioning plate and an optical axis;

[0025] The positioning plate is provided with positioning holes, and an optical axis passes through the positioning holes and the hinge holes of the main ribs to keep the multiple main ribs coaxial.

[0026] (III) Beneficial Effects

[0027] The beneficial effects of the present invention are: the hydraulic support backing manufacturing method provided by the present invention can effectively reduce the overall deformation of the top plate during the welding process by fixing the outer edges of the top plates of the two backings in opposite directions and then welding the main reinforcement.

[0028] By adjusting the welding sequence and adopting a method of welding the main ribs sequentially from both sides towards the center, the welding stress is symmetrically distributed, reducing the transmission and concentration of welding heat input to the edge of the top plate, and further suppressing the warping deformation of the top plate.

[0029] This invention also provides a tooling assembly for manufacturing hydraulic support sidewalls. Specifically, a positioning assembly (optical axis cooperating with a positioning plate) ensures the coaxiality of the hinge holes of each main rib, and process clamps constrain the deformation of the top plate edge during welding. Compared to existing technologies, this invention, by combining an optical axis and process clamps to position the main ribs, not only reduces the workload of riveting and marking during assembly but also significantly improves assembly accuracy. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the hydraulic support sidewall structure.

[0031] Figure 2 This is a perspective view (first view) of the two protective clamping process clips of the present invention.

[0032] Figure 3 This is a perspective view (second view) of the two protective clamping process clips of the present invention.

[0033] Figure 4 This is a schematic diagram of the structure of the process clip of the present invention;

[0034] Figure 5 This is a schematic diagram of the positioning plate of the present invention;

[0035] Figure 6 This is a schematic diagram of the structure of the protective arm using a positioning plate for positioning according to the present invention;

[0036] Figure 7 A perspective view of the protective sleeve using a positioning plate and optical axis positioning according to the present invention;

[0037] Figure 8 This is a schematic diagram of the welding structure of the present invention.

[0038] [Explanation of Labels in the Attached Image]

[0039] 1: Top slab;

[0040] 2: Main reinforcement bar; 21: Hinge hole;

[0041] 3: Process clip; 31: Slot;

[0042] 4: Positioning plate; 41: Positioning hole;

[0043] 5: Optical axis;

[0044] 6: Ribs;

[0045] 7: Cover plate;

[0046] 8: Rib plate;

[0047] 9: Root pass welding;

[0048] 10: Filler weld;

[0049] 11: Cover weld. Detailed Implementation

[0050] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0051] See appendix Figure 1 As shown, the hydraulic support sidewall includes a top plate 1 and multiple main ribs 2, stiffening plates 8, and ribs 6 welded to the surface of the top plate 1. Since the outer main ribs 2 are close to the outer edge of the top plate 1, during the welding process, the area near the main ribs 2 will be subjected to welding stress and heat conduction. Heat conduction causes the surface of the top plate 1 to heat up, and the material softens. In addition, the welding stress can easily cause the outer edge of the top plate 1 to have a butterfly-shaped tendency, that is, the two ends of the top plate 1 will deform and warp, causing the top plate 1 to no longer be a flat plane.

[0052] Example 1:

[0053] See appendix Figure 2-8As shown, the present invention provides a method for manufacturing a hydraulic support sidewall, which is used to improve the problem of difficulty in ensuring the coaxiality of the main rib hinge holes and large welding deformation of the top plate during the welding process, so as to improve the manufacturing accuracy of the sidewall.

[0054] The protective structure involved in this embodiment mainly includes two oppositely arranged top plates 1 and multiple main reinforcement bars 2 arranged along the length of the top plates, each of which is provided with a hinge hole 21.

[0055] The manufacturing method of this embodiment includes the following steps:

[0056] Step 1: Align the top plate with the outer edge and fix it;

[0057] First, the two top plates 1 of the side guards are attached together with their inner surfaces facing each other. The two top plates 1 are the same shape and size, forming a symmetrical assembly after attachment. Then, along the extension direction of the main reinforcement 2 of the side guards, multiple process clips 3 are used to clamp and fix the outer edge of the top plates 1. The process clips 3 are C-shaped or bow-shaped clips, arranged at equal intervals. By using the openings of the process clips 3, the two plates are clamped together by hammering. The process clips 3 are in an open shape, loose on the outside and tight on the inside, to prevent the top plates 1 from slipping or warping relative to each other during subsequent welding.

[0058] Step 2: Main reinforcement positioning and coaxial control with hinge holes;

[0059] On the outer surface of the fixed top plate 1 (i.e. the side opposite to the bonding surface), perform the marking operation: first draw the center line of the width of the top plate 1, and then determine the installation position lines of each main reinforcement 2 according to the design drawings, including the starting line, ending line and center line of the main reinforcement 2.

[0060] The main rib 2 is positioned using a positioning fixture. This fixture includes a positioning plate 4 and an optical axis 5. The positioning plate 4 has multiple positioning holes 41, specifically two positioning holes 41. In this embodiment, the main rib 2 includes two lengths. The hinge holes 21 of the main ribs 2 of the same length are coaxial, and the two positioning holes 41 of the positioning plate 4 correspond to the hinge holes 21 of the two types of main ribs 2.

[0061] The optical axis 5 is a precision-ground steel shaft, and its outer diameter forms an overfit with the inner diameter of the hinge hole 21 and the positioning hole 41.

[0062] During operation, the optical axis 5 is sequentially passed through the hinge holes 21 of multiple main ribs 2 and the positioning holes 41 of the positioning plate 4, thereby forcing the corresponding hinge holes 21 on the multiple main ribs 2 to remain coaxial. In this state, the main ribs 2 are accurately placed according to the marked positions on the surface of the top plate 1, and the main ribs 2 are initially fixed to the top plate 1 by spot welding. Preferably, spot welding is performed at both ends and the middle of each main rib 2. After spot welding is completed, the optical axis 5 is pulled out and the positioning plate 4 is removed.

[0063] The two protective top plates 1 are fixed by using a back-to-back assembly method. During welding, one main reinforcement 2 of the protective plate can be welded first, followed by the other. Alternatively, they can be lifted vertically and welded simultaneously on both sides.

[0064] Step 3: Welding process;

[0065] The welding was performed using gas metal arc welding (MAG welding), with a shielding gas composition of 80% Ar and 20% CO2. The welding wire diameter was 1.2 mm, and the welding wire grade was ER50-6.

[0066] The welding sequence is to weld the main reinforcing bars 2 to the top plate 1 from both sides towards the middle. Specifically, the two outermost main reinforcing bars 2 located in the width direction of the top plate 1 are welded first, and then the middle main reinforcing bar 2 is welded. The weld between each main reinforcing bar 2 and the top plate 1 adopts a three-layer welding structure from the inside to the outside, namely, root pass 9, fill pass 10, and cover pass 11.

[0067] For the root pass welding 9, the current intensity is 260-310A, the arc voltage is 25-30V, the welding speed is 4-8mm / s, and the heat input is controlled at 0.8-1.1KJ / mm. The root pass welding is used to ensure root penetration and avoid incomplete fusion and cracks.

[0068] For filler welding 10, the current intensity is 280-330A; the arc voltage is 29-33V; the welding speed is 8-12mm / s; and the heat input is controlled at 1.0-1.3KJ / mm. The thickness of each filler weld layer should not exceed 3mm.

[0069] The current intensity for the cover weld 11 is 270-320A; the arc voltage is 28-32V; the welding speed is 5-9mm / s; and the heat input is controlled at 0.9-1.2KJ / mm. The cover weld is used to ensure a smooth weld surface, with the reinforcement height not exceeding 2mm, and a smooth transition with the base metal.

[0070] Unlike conventional welding parameters, a low-heat-input welding process is employed, which effectively controls the heat-affected zone and residual stress. Through root pass welding (9), fill pass welding (10), and cap pass welding (11), welding quality is controlled in layers, avoiding incomplete fusion or overheating caused by single-pass forming. This ensures welding quality while effectively controlling welding thermal deformation. The welding sequence from both sides to the center results in a symmetrical distribution of welding stress, reducing the transfer of heat retention during welding to the outer edge of the top plate 1, further minimizing warping deformation of the top plate 1.

[0071] Step 4: Post-processing and testing;

[0072] After welding, wait for the workpiece to cool to room temperature, then use a flame cutting torch to remove process clip 3. Use an angle grinder to grind the weld beads at the start and end points of the weld, as well as the spatter, without damaging the base material.

[0073] Then, quality inspection is performed:

[0074] Using the same optical axis 5 as in step two, try inserting it into the hinge holes 21 on each main rib 2. If the optical axis 5 can pass smoothly through all the hinge holes 21 without significant obstruction, the coaxiality is deemed acceptable.

[0075] If the flatness or coaxiality is out of tolerance, a press can be used for local correction, but it needs to be checked again after correction.

[0076] The hydraulic support sidewall manufactured using the above methods has high coaxiality of the main rib hinge holes and small welding deformation of the top plate, which significantly improves the service life of the sidewall and the assembly accuracy with the support body.

[0077] The manufacturing method of the hydraulic support guard provided by this invention involves placing the top plates 1 of two assembled guards against each other in opposite directions and locking their outer edges. By utilizing the mutual cancellation of welding thermal stress, the deformation of the top plates 1 after welding can be significantly reduced. At the same time, by improving the welding parameters, the welding heat-affected zone and residual stress are effectively suppressed. Combined with the assembly process of the top plates 1, this further reduces deformation and improves manufacturing accuracy.

[0078] Compared with existing technologies, this manufacturing method effectively reduces and prevents the risk of edge curling and deformation of the top plate after welding by clamping the process clips back to back, adjusting the welding sequence, and adjusting specific welding parameters, thus avoiding excessively long shaping process steps and improving production efficiency.

[0079] Example 2:

[0080] Step two also includes marking and positioning the stiffening plate 8 and the rib plate 6.

[0081] Furthermore, in step three, the main reinforcing bars 2 are welded first, followed by the stiffening plates 8 and ribs 6. All the main reinforcing bars 2, stiffening plates 8, and ribs 6 are welded sequentially from both sides towards the center. Welding from the outside in, with priority given to the longitudinal long welds of the main reinforcing bars 2, reduces the heat transfer during welding to the outer edge of the top plate 1. This allows welding stress to be released symmetrically towards the center, reducing shrinkage deformation and preventing warping of the top plate 1's edges.

[0082] Welds are formed on both sides of each main rib 2, stiffener plate 8, and rib plate 6 to ensure double-sided penetration, enhance the overall rigidity and impact resistance of the sidewall, and improve the connection strength.

[0083] By utilizing symmetrical heat input distribution, both sides of the top plate 1 are heated evenly, allowing for control of welding deformation from the process source. Spot welding is performed first for positioning, then clamping and fixing, and finally welding is completed, ensuring a balance between precision and efficiency.

[0084] Furthermore, the manufacturing method also includes step five: assembling and welding the cover plate 7;

[0085] The cover plate 7 in this embodiment includes a first cover plate, a second cover plate, and a third cover plate.

[0086] Specifically, the protective side of the welded main reinforcement 2, rib plate 6, and stiffener plate 8 is hoisted onto the platform. The riveter, according to the design drawings, overlaps or sinks the first cover plate, second cover plate, and third cover plate into the space between the main reinforcement 2 and rib plate 6, and fixes them to the side of the main reinforcement 2 by spot welding.

[0087] Then the cover plate 7 is welded again.

[0088] Since the cover plate 7 does not directly contact the top plate 1, but is welded and fixed to the main reinforcement 2, it will not directly affect the top plate 1 and will not usually directly cause deformation of the top plate 1. Therefore, the cover plate 7 differs from the main reinforcement 2 in that it adopts the following welding parameters:

[0089] The welding method is gas metal arc welding (GMAW), using 1.2mm diameter welding wire. For the root pass (9), the current intensity is 280-330A, the arc voltage is 29-35V, the welding speed is 5-10mm / s, and the heat input is 1.0-1.3KJ / mm; for the fill pass (10), the current intensity is 300-350A, the arc voltage is 34-38V, the welding speed is 10-15mm / s, and the heat input is 0.9-1.5KJ / mm; for the cover pass (11), the current intensity is 290-340A, the arc voltage is 32-36V, the welding speed is 6-13mm / s, and the heat input is 0.9-1.4KJ / mm.

[0090] Finally, the cover plate 7 is shaped to complete the manufacturing of the side guard.

[0091] Grind off the weld beads and slag, and then check the coaxiality again by inserting the optical axis 5 through the hinge holes 21 on each main rib 2.

[0092] Example 3:

[0093] This invention also includes a tooling assembly for manufacturing the hydraulic support sidewall. This tooling assembly includes a process clamp 3 for fixing the top plate 1, and a positioning assembly for keeping the hinge holes 21 of the multiple main ribs 2 coaxial. The process clamp 3 has a plate-like structure, and one side of the process clamp 3 has a groove 31, the width of which gradually decreases from the outside to the inside. The process clamp 3 is used in conjunction with the manufacturing method to significantly reduce the wave deformation of the top plate 1 after welding by opposing the top plates 1 of the two sidewalls and locking their outer edges.

[0094] The width of the slot 31 gradually decreases from the outside to the inside. When the edge of the top plate 1 is inserted, a wedging force is generated, achieving self-locking clamping without the need for additional bolts or clamps, making installation convenient. It also has a certain degree of adaptability, accommodating top plates 1 within a certain thickness range.

[0095] The positioning assembly includes a positioning plate 4 and an optical axis 5. The positioning plate 4 has two positioning holes 41. Since the main ribs 2 include two lengths, the hinge holes 21 are located at the ends of the main ribs 2. The positions of the hinge holes 21 of the two main ribs 2 are different, and the positions of the two main ribs 2 on the top plate 1 are symmetrical with respect to the centerline. Therefore, the two positioning holes 41 of the positioning plate 4 correspond to the hinge holes 21 of the two main ribs 2. Through the two through holes on the positioning plate 4 and the optical axis 5, the hinge holes 21 on the multiple main ribs 2 are kept precisely coaxial before welding, avoiding misalignment of the holes after welding, which would prevent assembly.

[0096] The optical axis 5 is transitionally fitted with the positioning hole 41. The diameter of the optical axis 5 is equal to the diameter of the positioning hole 41. The optical axis 5 serves as both a positioning component and a temporary fastener, resulting in high assembly efficiency.

[0097] This invention provides a tooling assembly for manufacturing hydraulic support sidewalls. A positioning component ensures the coaxiality of the hinge holes 21 between the main ribs 2, and a process clamp 3 improves the problem of easy deformation of the top plate 1 edge during welding of the main ribs 2. Compared to existing technologies, the combined use of the optical axis 5 and the process clamp 3 to position the main ribs effectively reduces the workload of riveting and marking during assembly, while improving assembly accuracy.

[0098] 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.

[0099] 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.

[0100] 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.

[0101] 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.

[0102] 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 method for manufacturing a hydraulic support sidewall, characterized in that, It should include at least the following steps: The top plates (1) of the two side walls are fitted together and the outer edge of the top plates (1) is fixed along the extension direction of the main reinforcement (2) of the side walls; Position the main reinforcement (2) so that the hinge holes of each main reinforcement (2) remain coaxial; The main reinforcing bars (2) are welded to the top plate (1) from both sides toward the middle.

2. The method for manufacturing the hydraulic support sidewall according to claim 1, characterized in that, The method for locating the main reinforcement (2) includes the following steps: Draw lines on the surface of the top plate (1) to determine the center line of the width of the top plate (1) and the positions of multiple main reinforcement bars (2); After passing the optical axis (5) through the hinge hole (21) of the main rib (2) and the positioning hole (41) of the positioning plate (4), and keeping the corresponding hinge holes (21) of multiple main ribs (2) coaxial, the main rib (2) is placed at the marked position on the top plate (1) and initially fixed by spot welding.

3. The method for manufacturing the hydraulic support sidewall according to claim 1, characterized in that, The welding method is gas metal arc welding, and the weld seam is formed sequentially from the inside out as a root pass (9), a fill pass (10), and a cover pass (11).

4. The method for manufacturing the hydraulic support sidewall according to claim 3, characterized in that, The current intensity of the root pass welding (9) is 260-310A, the arc voltage is 25-30V, the welding speed is 4-8mm / s, and the heat input is 0.8-1.1KJ / mm.

5. The method for manufacturing the hydraulic support sidewall according to claim 4, characterized in that, The current intensity of the filler weld (10) is 280-330A, the arc voltage is 29-33V, the welding speed is 8-12mm / s, and the heat input is 1.0-1.3KJ / mm.

6. The method for manufacturing the hydraulic support sidewall according to claim 5, characterized in that, The current intensity of the cover weld (11) is 270-320A, the arc voltage is 28-32V, the welding speed is 5-9mm / s, and the heat input is 0.9-1.2KJ / mm.

7. The method for manufacturing the hydraulic support sidewall according to claim 3, characterized in that, It also includes: after removing the process clips (3), grinding the weld beads and slag, checking the flatness of the top plate (1), and checking the coaxiality by inserting the optical axis (5) into the hinge holes (21) on each main rib (2).

8. A tooling assembly for manufacturing the sidewall of a hydraulic support, characterized in that, include: Process clips (3) for securing the outer edge of the top plate (1) of the sidewall, and positioning components for keeping the hinge holes (21) of the multiple main ribs (2) coaxial; The process clip (3) has a plate-like structure, and a slot (31) is provided on one side of the process clip (3), the width of the slot (31) gradually decreasing from the outside to the inside; The positioning component includes a positioning plate (4) and an optical axis (5); The positioning plate (4) is provided with a positioning hole (41), and the optical axis (5) passes through the positioning hole (41) and the hinge hole (21) of the main rib (2) so that the multiple main ribs (2) remain coaxial.

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