A hydraulic support part machining method and a press machine tire pressing assembly

Abstract

The present application relates to hydraulic support manufacturing technical field, especially to a kind of machining method of hydraulic support parts, the tire assembly of press machine, comprising the following steps: S1: according to the position to be bent, form bending line on the part blank, and the part blank is placed on the lower tire of press machine;S2: adjust the upper tire of the press machine and the part blank, make the bending line at the position to be bent with the center line of the lower tire and the upper tire alignment, then control the upper tire with preset down stroke downward movement, make the part blank bend to preset angle, form bending section;S3: along the center line of the bending section the part blank is cut, forms two radian symmetrical parts. By once bending, double-piece output, reduce half workpiece hoisting, clamping and cutting frequency, cooperate blanking and cutting process optimization, improve production efficiency.

Description

Technical Field

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

[0002] As coal mining continues to expand towards thicker and thinner coal seams, hydraulic supports, as the core support equipment in underground fully mechanized mining faces, are increasingly trending towards a synergistic development of high support strength and lightweight structure. To achieve this goal, current hydraulic supports generally use high-strength structural steel of Q550 and Q690 grades for their main load-bearing structural components, with steel plate thicknesses mostly concentrated in the range of 25mm-40mm. While using these high-strength, thick plates can effectively reduce the structural weight while improving the overall support performance, it also places higher demands on the forming and processing of structural components.

[0003] In the manufacturing of hydraulic supports, key structural components such as shield beams, connecting rods, and top beams typically require steel plates to be bent to the designed angle using a press. Existing traditional processing methods often employ individual bending on a single piece basis: during processing, each workpiece requires a pre-installed extension section as a manufacturing allowance for clamping, positioning, and stress support during bending; after bending and springback correction, the extension section is removed using processes such as gas cutting to obtain parts that meet dimensional requirements. This process primarily addresses the problems of high springback in high-strength steel plates, the difficulty in controlling the forming process, and the potential for uneven stress during bending that could lead to part scrap.

[0004] However, the aforementioned traditional single-piece bending process has significant shortcomings in actual large-scale production, specifically in the following aspects:

[0005] 1. Low raw material utilization rate and high production costs:

[0006] Each workpiece requires a 200mm-500mm extension for the process, and this portion of material is cut off and discarded after bending. For high-priced, high-strength steel plates such as Q550 and Q690, this large amount of process allowance results in significant waste of raw materials, directly increasing the manufacturing cost of parts.

[0007] 2. The equipment occupancy time is long and energy consumption is relatively high:

[0008] Bending a single piece sequentially requires repeated processes such as feeding, clamping, alignment, pressurizing, and holding pressure. Bending high-strength thick plates requires large-tonnage equipment and long holding pressure times per cycle. When processing multiple batches continuously, a large number of high-tonnage presses are occupied, resulting in low equipment utilization and increased equipment depreciation and energy costs.

[0009] 3. The processing steps are cumbersome, resulting in low overall production efficiency:

[0010] The production process requires frequent workpiece hoisting and positioning, and a secondary cutting process is needed after bending, resulting in a lengthy processing flow and slow production cycle. In the mass production of hydraulic support structural components, the single-piece processing mode has become a significant factor restricting capacity expansion.

[0011] 4. Poor consistency in part molding affects subsequent assembly:

[0012] The independent bending of multiple workpieces is easily affected by factors such as operator skill, equipment status, and fluctuations in process parameters. Deviations in bending angle and external dimensions of parts in the same batch are likely to occur, which increases the difficulty of subsequent assembly and welding processes and is not conducive to ensuring the overall assembly accuracy and structural stability of the bracket. Summary of the Invention

[0013] (a) Technical problems to be solved

[0014] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a processing method for hydraulic support parts and a press tire assembly for a press, which solves the technical problems of poor production efficiency, low raw material utilization and poor consistency of the existing processing technology.

[0015] (II) Technical Solution

[0016] To achieve the above objectives, the main technical solutions adopted by the present invention include:

[0017] A method for processing a hydraulic support component includes the following steps:

[0018] S1: According to the position to be bent, form a bending line on the part blank and place the part blank on the lower pressure plate of the press.

[0019] S2: Adjust the upper pressure tire of the press and the part blank so that the bending line at the bending position is aligned with the center line of the lower pressure tire and the upper pressure tire. Then control the upper pressure tire to move downward with a preset downward stroke so that the part blank is bent to a preset angle to form a bent section.

[0020] S3: Cut the part blank along the centerline of the bent section to form two symmetrical parts.

[0021] In step S1, according to the position to be bent, a first bending line, a second bending line and a third bending line are sequentially formed on the part blank along the first direction;

[0022] The second bend line coincides with the center line of the part blank, and the first bend line and the third bend line are located on both sides of the second bend line at equal intervals.

[0023] In step S2, the position of the part blank is adjusted along the second direction, which is perpendicular to the first direction, so that the upper pressure plate sequentially bends the corresponding position of the part blank according to the first bending line, the third bending line and the second bending line, so that the two ends of the bent part blank are parallel and the middle part is semi-circular.

[0024] In step S2, the bending angle of the first bend line and the third bend line is 15° to 30°.

[0025] It also includes step S4: grinding the cut edges of the part to form a chamfer of 30° to 40° on the cut edges.

[0026] A press roller assembly for processing the aforementioned hydraulic support parts includes: an upper press roller, a lower press roller, and a positioning device. The lower press roller is located below the upper press roller, and the positioning device is disposed on one side of the lower press roller for limiting the position of the part blank.

[0027] The upper pressure tire has a ring structure, and the top of the upper pressure tire is used to connect the pressure device of the press.

[0028] The lower tire has a rectangular structure, and a V-shaped groove is provided on the top of the lower tire. The included angle between the two side walls of the V-shaped groove is 90°, and the two side walls of the V-shaped groove perpendicular to the bending line direction are parallel to each other.

[0029] The ratio of the diameter of the upper tire to the width of the V-groove is 1:3 to 1:5.

[0030] The positioning device includes a support plate, a slide rail, and a positioning plate. The two ends of the support plate are respectively inclined and fixed to the bottom of the slide rail and the side of the lower pressure tire. The slide rail is horizontally fixed to the top of the support plate along a second direction.

[0031] The positioning plate is slidably connected to the slide rail in the second direction, and the side of the positioning plate facing the groove of the lower pressure tire is used to abut against the end of the part blank.

[0032] (III) Beneficial Effects

[0033] The beneficial effects of this invention are as follows: This invention provides a processing method for hydraulic support parts, employing a bending-then-cutting processing method, producing two parts through a single bending operation. The number of press uses is reduced by 50%, effectively reducing the time spent on high-tonnage presses, power consumption, and mold wear. Simultaneously, the number of workpiece hoisting, clamping, and cutting operations is reduced by half, significantly reducing manual labor intensity. Combined with the optimization of the blanking and cutting processes, the overall production cycle is accelerated, better meeting the large-volume delivery requirements of hydraulic supports.

[0034] This processing method treats the bent sections of two parts as a single process. The lateral forces generated during bending are evenly canceled out by each other in the bent sections, resulting in balanced stress on the bent sections of the entire part blank. This avoids slippage or uneven stress that can easily occur when bending a single part, and reduces cutting waste during a single process. It is especially suitable for forming high-strength thick plates such as Q550 and Q690.

[0035] Since the two parts are formed in the same mold and under the same pressure, their angles are consistent, eliminating individual differences caused by single-piece processing. This is beneficial for subsequent welding and assembly, and improves the overall manufacturing precision of the hydraulic support structure.

[0036] The tire pressing assembly of the press provided by this invention can be used in conjunction with the above-mentioned processing method, avoiding the problem of incompatibility between general tire pressing and this method. Traditional tire pressing usually relies on the operator's visual positioning. This assembly, by setting a positioning device, significantly reduces the dependence on the operator's skill level and improves the accuracy of the process. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of forming a bending line on a part blank in step one of the processing method of the present invention.

[0038] Figure 2 This is a schematic diagram of bending the first bend line in step two of the processing method of the present invention;

[0039] Figure 3 This is a schematic diagram of bending the third bend line in step two of the processing method of the present invention;

[0040] Figure 4 This is a schematic diagram of bending the second bend line in step two of the processing method of the present invention;

[0041] Figure 5 This is a schematic diagram of two symmetrically curved parts formed in step three of the processing method of the present invention;

[0042] Figure 6 This is a schematic diagram illustrating the chamfering of the cut edge of the part in step four of the processing method of the present invention;

[0043] Figure 7 A schematic diagram showing the part processed by the processing method of the present invention welded to the outer side of the main rib arc;

[0044] Figure 8 This is a schematic diagram of the structure of the blank of the upper pressure tire bending downward according to the present invention;

[0045] Figure 9 This is a schematic diagram of the upper pressure tire structure of the present invention;

[0046] Figure 10 This is a schematic diagram of the structure of the lower pressure tire of the present invention;

[0047] Figure 11 This is a schematic diagram of the positioning device and the lower pressure tire of the present invention.

[0048] [Explanation of Labels in the Attached Image]

[0049] 1: Part blank; 11: First bend line; 12: Second bend line; 13: Third bend line; 14: Part;

[0050] 2: Press the tire;

[0051] 3: Low-pressure tire; 31: V-shaped groove;

[0052] 4: Positioning device; 41: Support plate; 42: Slide rail; 43: Positioning plate;

[0053] a: First direction;

[0054] b: Second direction. Detailed Implementation

[0055] 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.

[0056] Example 1:

[0057] See appendix Figure 1-7 As shown in the figure, an embodiment of the present invention provides a method for processing a hydraulic support part, including the following steps:

[0058] S1: According to the position to be bent, form a bending line on the part blank 1, and place the part blank 1 on the lower pressure jig 3 of the press.

[0059] Among them, part blank 1 is made of Q550 or Q690 high-strength steel, and the steel thickness is 25-40mm.

[0060] S2: Adjust the upper pressure roller 2 and the part blank 1 of the press so that the bending line at the bending position is aligned with the center line of the lower pressure roller 3 and the upper pressure roller 2. Then control the upper pressure roller 2 to move downward with a preset downward stroke so that the part blank 1 is bent to a preset angle to form a bent section.

[0061] The press is a high-tonnage press, and a pressure holding time is set during the bending process to meet the forming requirements of high-strength steel.

[0062] S3: Cut the blank part 1 along the center line of the bent section to form two symmetrical parts.

[0063] S4: Grind the cut edges of the part to form a chamfer of 30° to 40°.

[0064] This processing method adopts a force balance mechanism of dual-piece synchronous bending. Since the two parts are symmetrically arranged relative to the bending section before cutting, and the bending section is a whole, the lateral force generated during bending is evenly canceled out in the bending section, so that the entire part blank 1 is subjected to balanced force, avoiding slippage or uneven force that is easy to occur when bending a single part. It is especially suitable for forming high-strength thick plates such as Q550 and Q690.

[0065] Before bending, the bending position is pre-marked to provide a clear benchmark for subsequent alignment and avoid the accumulation of errors caused by operation based on experience. The bending line is aligned with the center line of the upper and lower pressure rollers 3 to ensure that the pressure is applied directly above the bending line, resulting in symmetrical and even force distribution and preventing the part from twisting or developing angular deviations after bending. The press achieves fast and stable bending, ensuring the angular consistency of parts in the same batch, making it suitable for mass production of hydraulic support parts.

[0066] By producing two parts in a single bend, the material utilization rate is significantly improved. It is especially suitable for symmetrical structural components used extensively in hydraulic supports (such as connecting rod lugs and shield beam connecting plates), reducing the generation of cutting waste. In mass production scenarios, it can effectively reduce raw material costs and processing time costs.

[0067] After bending, the parts are cut using plasma cutting or flame cutting equipment to separate them into two pre-formed parts. Since the cutting process creates a hardened layer, burrs, and micro-cracks at the edges, grinding and finishing the cut edges can effectively remove these defects and restore the continuity and integrity of the edges.

[0068] A chamfer of 30° to 40° can be used as a process chamfer to eliminate stress concentration, or as a beveling preparation before welding. Hydraulic support parts are largely connected by welding, and this chamfer can directly meet the beveling requirements for fillet welds or butt welds, combining the "deburring + pre-welding preparation" processes and significantly improving production cycle time.

[0069] Hydraulic supports are subjected to cyclic alternating loads during operation, and stress concentration at the cut edges is often the origin of fatigue cracks. By forming a 30° to 40° chamfer, sharp edges are transformed into smooth transitions, effectively improving the fatigue life of the parts and reducing the risk of failure during use. Grinding eliminates sharp edges, reducing the risk of scratches to operators during subsequent assembly and handling.

[0070] In step S1, according to the position to be bent, a first bending line 11, a second bending line 12 and a third bending line 13 are sequentially formed on the part blank 1 along the first direction a. The second bending line 12 coincides with the center line of the part blank 1, and the first bending line 11 and the third bending line 13 are located on both sides of the second bending line 12 at equal intervals.

[0071] The equal spacing ensures that the length of each bending segment is consistent, and the semi-circular structure formed after bending has a uniform arc length and constant curvature. During the service of the hydraulic support, the stress distribution is more uniform, delaying the initiation of fatigue cracks. At the same time, the symmetrical layout makes the force on both sides balanced during bending, reducing the tendency of the blank to twist on the press.

[0072] Before bending, the precise positions of the three bending lines are clearly defined, which makes it easier for operators to perform the step-by-step bending in sequence, avoiding the accumulation of errors caused by multiple adjustments based on experience, and improving the controllability and trainability of the process.

[0073] In step S2, the position of the part blank 1 is adjusted along the second direction b, which is perpendicular to the first direction a. This causes the upper pressure roller 2 to sequentially bend the part blank 1 at the corresponding positions of the first bend line 11, the third bend line 13, and the second bend line 12. Specifically, the two sides to be bent are bent first, followed by the middle section to be bent, resulting in parallel ends and a semi-circular middle section for the bent part blank 1. The bending angles for the first bend line 11 and the third bend line 13 are 15° to 30°. When bending the third bend line 13, it is directly bent into a semi-circle.

[0074] Moving the blank along the direction perpendicular to the extension of the bend line (second direction b) allows the upper pressure tire 2 to be aligned with each bend line in sequence. This adjustment method is orthogonal to the arrangement direction of the bend lines, achieving position adjustment and making the operation intuitive.

[0075] The first, second, and third bends 13 are sequentially bent, allowing the material to undergo controllable plastic deformation in each bend. This avoids stress superposition and excessive local thinning caused by simultaneous loading of multiple bends, and can effectively suppress the generation of bending cracks, especially for high-strength steel.

[0076] After bending, it has a structure with parallel ends and a semi-circular middle, which directly corresponds to the arc-shaped structure feature commonly found in hydraulic supports. This shape can provide a smooth rotational mating surface during support movement, reduce friction and wear, and extend the service life of the hinged parts.

[0077] After bending in stages and completing the three bending lines in sequence, the springback of the material in the final formed state tends to be stable and predictable, which makes it easy to achieve precise control of the finished product angle through preset angle compensation, thereby improving the bending qualification rate.

[0078] The bent parts are installed on the outside of the main rib arc or in the middle of the main rib spacing. They can be installed on the outside of the arc-shaped structure of the hydraulic support parts according to actual needs.

[0079] See appendix Figure 8 As shown, in step S2, the downward pressing stroke of the upper pressure tire 2 is determined based on the height H of the upper pressure tire 2 and the depth D of the V-shaped groove 31 of the lower pressure tire 3. The height H of the upper pressure tire 2 must meet the requirements of the part, and at the same time, it is also necessary to consider avoiding interference with the upper pressure tire 2 after the part is bent.

[0080] Example 2:

[0081] See appendix Figure 9-11 As shown, this embodiment of the invention also provides a press roller assembly for processing the above-mentioned hydraulic support parts, including: an upper press roller 2, a lower press roller 3 and a positioning device 4. The lower press roller 3 is located below the upper press roller 2, and the positioning device 4 is disposed on one side of the lower press roller 3 for limiting the position of the part blank 1.

[0082] By combining the tire pressing assembly with the aforementioned processing method, the problem of incompatibility between the general tire pressing assembly and this method is avoided, ensuring that core process features such as alignment of the bending line with the tire pressing centerline and step-by-step bending can be accurately achieved.

[0083] Traditional tire pressing machines typically rely on operators' visual positioning. This component, by setting up positioning device 4, upgrades the alignment from human eye to mechanical limit, significantly reducing the dependence on the operator's skill level and improving the accuracy of the process.

[0084] The presence of positioning device 4 enables this method to adapt to blanks of different lengths and specifications. By adjusting the position of positioning plate 43, product models can be quickly switched. This method is suitable for the production characteristics of various hydraulic support parts and improves the versatility of the equipment.

[0085] In mass production, the positioning device 4 ensures that the initial position of each blank is consistent, so that the positional error of the bending line relative to the pressure plate is controlled within a very small range, thereby ensuring a high degree of consistency in product size within the batch.

[0086] The upper pressure tire 2 has a ring structure, and the top of the upper pressure tire 2 is used to connect the pressure device of the press.

[0087] The ring structure creates a stable force transmission path when the upper pressure tire 2 is connected to the pressure device. When the ring is under pressure, it can evenly distribute the concentrated load to the arc surface in contact with the blank, avoiding local indentations caused by line contact and ensuring that the surface quality of the bent section meets the appearance and corrosion protection requirements of the hydraulic support parts.

[0088] The ratio of the diameter of the upper pressure tire 2 to the width of the V-shaped groove 31 is 1:3 to 1:5.

[0089] Specifically, the diameter of the upper pressure tire 2 is 20-170mm.

[0090] The mapping relationship between bending radius and diameter: The diameter of the upper pressure treadle 2 directly determines the bending radius of the inner side of the part after bending. A diameter range of 20-170mm covers the common bending radius requirements of hydraulic support parts. Smaller diameters (20-50mm) are suitable for thin-walled reinforcing ribs or connecting lugs with high curvature bending, while larger diameters (120-170mm) are suitable for thick-plate structural components with large curvature bending (such as the arched guard plate of the top beam), forming a complete specification system. Typically, the dimensional difference between adjacent specifications is 5mm or 10mm, for example: 20mm, 30mm, 40mm...50mm, 55mm, etc. Different diameter upper pressure treadles 2 correspond to different degrees of material deformation, accommodating the minimum bending radius requirements of commonly used hydraulic support steels, such as Q460 and Q550 high-strength steels, under different plate thicknesses, avoiding material cracking or structural damage due to excessively small bending radii. A clearly defined diameter range provides a fundamental dimension for establishing a process parameter database, enabling process engineers to establish corresponding relationships for parameters such as bending stroke and springback compensation for different diameters, plate thicknesses, and materials, thus laying the foundation for digital process management.

[0091] The lower pressing tire 3 has a rectangular structure, and its top is provided with a V-shaped groove 31. The angle between the V-shaped groove 31 and the two side walls in the same direction as the bending line is 90°, and the two side walls perpendicular to the bending line are parallel to each other. When the 90° V-shaped groove cooperates with the upper pressing tire 2, various bending angles can be obtained by controlling the pressing stroke, which has good process versatility. The two side walls perpendicular to the bending line are parallel to each other, forming a straight guide structure. When the blank is placed, it can be smoothly pushed in along this direction and cooperate with the positioning device 4 to achieve fast and accurate axial positioning and shorten auxiliary time.

[0092] Specifically, the width A of the V-groove along the second direction b is 100-380mm, and the dimensional difference between adjacent specifications is 20mm, for example: 100mm, 120mm, 140mm, etc. The width of the upper surface of the lower pressure tire 3 along the second direction b is A+60mm, that is, the distance between the two ends of the lower pressure tire 3 and the V-groove is 30mm. The same distance facilitates the positioning of the rough parts.

[0093] During the manufacturing stage of the tire pressing assembly, the springback amount is pre-calculated based on the mechanical properties and thickness (25-40mm) of Q550 and Q690 materials, and compensation is made in the working angle and dimensional parameters of the tire pressing to ensure that the bending angle of the individual parts after cutting and separation meets the tolerance requirements.

[0094] The positioning device 4 includes a support plate 41, a slide rail 42, and a positioning plate 43. The two ends of the support plate 41 are respectively inclined and fixed to the bottom of the slide rail 42 and the side of the lower pressure tire 3. The slide rail 42 is horizontally fixed to the top of the support plate 41 along the second direction b. One end of the slide rail 42 is fixedly connected to the side of the lower pressure tire 3.

[0095] The support plate 41 is inclined and fixed between the bottom of the slide rail 42 and the side of the lower pressure tire 3, forming a triangular support structure. It utilizes the geometric stability of the triangle to achieve high-strength support in a limited space, while avoiding the movement space around the lower pressure tire 3 of the press. The structure is compact and has excellent mechanical properties.

[0096] Since the part blank needs to be manually adjusted in position during the bending process, the slide rail 42 is fixed horizontally along the second direction b, so that the sliding direction of the positioning plate 43 is completely consistent with the adjustment direction of the blank in the bending operation. The operator can complete the positioning and adjustment without changing the operating habits, which reduces the learning cost and the risk of incorrect operation.

[0097] Optionally, the upper surface of the slide rail 42 that connects with the lower pressure tire 3 is provided with scale lines to facilitate the user's positioning of the part blank.

[0098] The positioning plate 43 is slidably connected to the slide rail 42, and the side of the positioning plate 43 facing the groove of the lower pressure tire 3 is used to abut against the end of the part blank 1.

[0099] The positioning plate 43 abuts against the end of the blank to achieve the limit, which is a datum plane positioning method. The positioning datum is clear and the repeatability is high. Compared with the side clamping method, the end abutment will not cause the risk of squeezing and deformation to the side of the blank, which is especially suitable for the processing of thin plate hydraulic support parts.

[0100] The positioning plate 43 can slide along the slide rail 42 to adapt to blanks of different lengths, and product switching can be achieved without changing tooling, which improves the efficiency and economy of the equipment.

[0101] In batch processing, the end positioning reference of the entire batch of blanks is completely consistent, eliminating the accumulation of positioning errors when the operator places the blank each time, which significantly improves the consistency of bending position, and is especially suitable for mass production.

[0102] 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.

[0103] 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.

[0104] 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.

[0105] 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.

[0106] 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 processing a hydraulic support component, characterized in that, Includes the following steps: S1: According to the position to be bent, a bending line is formed on the part blank (1), and the part blank (1) is placed on the lower pressure plate (3) of the press. S2: Adjust the upper pressure tire (2) of the press and the part blank (1) so that the bending line at the bending position is aligned with the center line of the lower pressure tire (3) and the upper pressure tire (2). Then control the upper pressure tire (2) to move downward with a preset downward stroke so that the part blank (1) is bent to a preset angle to form a bending segment. S3: Cut the blank (1) along the center line of the bent section to form two symmetrical parts (14).

2. The processing method for the hydraulic support component according to claim 1, characterized in that, In step S1, according to the position to be bent, a first bending line (11), a second bending line (12) and a third bending line (13) are sequentially formed on the part blank (1) along the first direction (a). The second bend line (12) coincides with the center line of the part blank (1), and the first bend line (11) and the third bend line (13) are located at equal intervals on both sides of the third bend line (13) and the second bend line (12).

3. The processing method for the hydraulic support component according to claim 2, characterized in that, In step S2, the position of the part blank (1) is adjusted along the second direction (b), which is perpendicular to the first direction (a), so that the upper pressure tire (2) sequentially bends the corresponding position of the part blank (1) according to the first bending line (11), the third bending line (13) and the second bending line (12), so that the two ends of the bent part blank (1) are parallel and the middle part is semi-circular.

4. The processing method for the hydraulic support part according to claim 3, characterized in that, In step S2, the bending angle of the first bend line (11) and the third bend line (13) is 15° to 30°.

5. The processing method for the hydraulic support component according to claim 3, characterized in that, It also includes step S4: grinding the cut edge of the part (14) to form a chamfer of 30° to 40° on the cut edge.

6. A tire pressing assembly for a press, characterized in that, A method for processing a hydraulic support part according to any one of claims 1-5 includes: an upper pressure roller (2), a lower pressure roller (3), and a positioning device (4), wherein the lower pressure roller (3) is located below the upper pressure roller (2), and the positioning device (4) is disposed on one side of the lower pressure roller (3) for limiting the part blank (1).

7. The tire pressing assembly of the press according to claim 6, characterized in that, The upper pressure tire (2) has a ring structure, and the top of the upper pressure tire (2) is used to connect the pressure device of the press. The lower tire (3) has a rectangular structure. The top of the lower tire (3) is provided with a V-shaped groove (31). The included angle between the two side walls of the V-shaped groove (31) is 90°. The two side walls of the V-shaped groove (31) perpendicular to the bending line direction are parallel to each other.

8. The tire pressing assembly of the press according to claim 7, characterized in that, The ratio of the diameter of the upper pressure tire (2) to the width of the V-shaped groove (31) is 1:3 to 1:

5.

9. The tire pressing assembly of the press according to claim 7, characterized in that, The positioning device (4) includes a support plate (41), a slide rail (42) and a positioning plate (43). The two ends of the support plate (41) are respectively inclined and fixed to the bottom of the slide rail (42) and the side of the lower pressure tire (3). The slide rail (42) is horizontally fixed to the top of the support plate (41) along the second direction (b). The positioning plate (43) is slidably connected to the slide rail (42) along the second direction (b), and the side of the positioning plate (43) facing the groove of the lower pressure tire (3) is used to abut against the end of the part blank (1).

Images