A process for the production of a toe piece for a shoe machine

Abstract

The application relates to the technical field of shoe machine part processing, and discloses a production process for a swan head body for a shoe machine, which comprises the following steps: placing a model in a mold, setting paint on the surface of the model and drying; melting metal material to form a metal liquid and introducing the metal liquid into the mold to form a swan head body blank with a C-shaped structure and integrated molding; cutting, surface cleaning and heat treatment are carried out on the swan head body blank; initial positioning and reference processing are carried out on the swan head body blank after the heat treatment to form a processing reference surface; based on the processing reference surface, fine processing is carried out on an oil cylinder mounting part, an injection molding pipeline mounting part and a connecting bearing part to obtain the swan head body for the shoe machine. The application is beneficial to improving the overall strength, structural consistency and assembly processing precision of the swan head body.

Description

Technical Field

[0001] This application relates to the technical field of shoe machine parts processing, and in particular to a manufacturing process for a goose head body used in shoe machines. Background Technology

[0002] In shoe machinery, the gooseneck assembly typically supports and connects components such as hydraulic cylinders, injection molding pipes, and the frame. During operation, it must withstand the forces transmitted by the drive and injection molding mechanisms. The structural stability of the gooseneck assembly affects the fit between related components and the reliability of the equipment's operation.

[0003] In current goose head body manufacturing, multiple structural components are typically fabricated separately according to the shape requirements of different installation and load-bearing parts. These components are then assembled into a whole goose head body through welding, splicing, or fastening. While this manufacturing method facilitates the separate fabrication of each local structure, the assembly of multiple structural components creates welded joints, splices, or connecting surfaces, causing the overall stress state of the goose head body to be affected by the quality of each connection point.

[0004] During long-term operation of shoe machines, if the stability of the aforementioned connection points is insufficient, the gooseneck body may experience uneven local stress or unstable overall fit when subjected to force, thereby affecting the assembly and operational reliability of the hydraulic cylinder, injection pipes, and frame. Therefore, the existing gooseneck body production method used in shoe machines still suffers from insufficient consistency in the overall structure of the gooseneck body. Summary of the Invention

[0005] To address the issue of insufficient overall structural consistency in goose head production methods, this application provides a production process for goose head bodies used in shoe machinery.

[0006] This application provides a manufacturing process for the goose head body of a shoe machine, which adopts the following technical solution: A manufacturing process for a goose head body used in shoe machinery includes the following steps: S1. Place a model inside a mold for forming a goose head, apply a coating to the surface of the model, and dry the model with the coating. S2. Melt the metal material to form a liquid metal, and pour the liquid metal into the mold to form a C-shaped and integrally formed goose head blank. The goose head blank has a C-shaped opening and is reserved with a cylinder mounting part, an injection pipe mounting part, and a connecting bearing part with machining allowance. S3. After the goose head blank is demolded, it is cut to remove the gating gate, and the cut goose head blank is cleaned to remove the sand adhering to the surface of the goose head blank. S4. Heat-treat the goose head blank after surface cleaning; S5. Initially position the heat-treated goose head blank and perform reference machining on the preset reference area of ​​the goose head blank to form a machining reference surface. S6. Based on the machining reference surface, the cylinder mounting part, the injection pipe mounting part, and the connecting bearing part are precision machined to form a cylinder mounting hole and a cylinder mounting surface in the cylinder mounting part, an injection pipe assembly position in the injection pipe mounting part, and a connecting and mating structure in the connecting bearing part, thereby obtaining a goose head body for shoe machines.

[0007] By adopting the above technical solution, the goose head body is integrally cast and then cleaned, heat-treated, and precision-machined. This allows the goose head body to form an integrated C-shaped load-bearing structure, reducing weak points in the connection caused by traditional splicing or welding methods, thereby improving the overall strength and structural consistency of the goose head body. Heat treatment can reduce the impact of residual stress after casting on the subsequent machining accuracy. Reference machining can provide a unified positioning basis for the precision machining of the cylinder mounting part, injection pipe mounting part, and connecting load-bearing part, thereby improving the relative machining accuracy between each installation position and facilitating the stable assembly of the goose head body with the cylinder, injection pipe, and frame structure in the shoe machine.

[0008] Optionally, in step S5, before initially positioning the heat-treated goose head blank, the opening span of the C-shaped opening, the height difference between the two ends of the C-shaped opening, and the offset of the back arc side of the goose head blank relative to the theoretical contour are detected. When at least one of the opening span, height difference, or offset exceeds the corresponding preset deviation range, the initial positioning posture of the goose head blank is adjusted according to the detection results, and the preset reference area is redefined so that the machining allowance of the cylinder mounting part, the injection pipe mounting part, and the connecting bearing part is not less than the corresponding preset minimum machining allowance.

[0009] By adopting the above technical solution, before the goose head blank enters the reference machining, it is possible to identify the opening deformation and contour offset caused by casting and heat treatment, and correct the clamping posture and reference machining position accordingly, so as to avoid insufficient local machining allowance caused by still machining in a fixed posture; so that the cylinder mounting part, injection pipe mounting part and connecting bearing part have sufficient allowance in subsequent finishing, which is conducive to reducing the blank scrap rate and improving the machining stability of each assembly part.

[0010] Optionally, the preset reference area includes a back arc support area located on the back arc side of the goose head blank, an end limiting area located at both ends of the C-shaped opening, and a lateral positioning area located on one side of the thickness direction of the goose head blank. The pre-defined reference area of ​​the goose head blank is processed by reference machining, including: forming a back arc support reference surface in the back arc support area, forming an end limit reference surface in the end limit area, and forming a lateral positioning reference surface in the lateral positioning area.

[0011] By adopting the above technical solution, a multi-directional positioning foundation is formed for the C-shaped irregular structure of the goose head blank, avoiding the problems of unstable support, offset of the opening end or sway in the thickness direction when relying on a single plane for positioning; making the support, limit and lateral positioning relationship of the blank clearer during subsequent finishing, which is conducive to improving the stability of the machining datum and the machining consistency of each assembly part.

[0012] Optionally, the actual contour data of the goose head blank can be obtained by three-dimensional scanning or multi-point contact measurement, and the actual contour data can be fitted and compared with the theoretical three-dimensional model of the goose head to calculate the opening span, height difference and offset. Based on the fitting comparison results, the machining allowance of the cylinder mounting part, injection pipe mounting part and connecting bearing part under different candidate positioning postures is calculated, and the initial positioning posture and the preset reference area are determined from the candidate positioning postures in which the machining allowance is not less than the corresponding preset minimum machining allowance.

[0013] By adopting the above technical solution, the actual shape of the goose head blank is compared with the theoretical structure, which can more accurately determine the deformation of the blank and the allowance distribution of each processing part. This avoids the problem of insufficient local allowance caused by relying solely on manual experience to determine the clamping posture. By selecting the posture that meets the processing allowance requirements from multiple candidate positioning postures, it is beneficial to improve the reliability of the determination of the reference area, making subsequent reference processing and finishing more stable.

[0014] Optionally, in step S5, the preset reference area of ​​the goose head blank is subjected to reference processing, including: First, the goose head blank is initially clamped with a first clamping force, and the preset reference area is rough reference machined. Then reduce the first clamping force to allow the goose head blank to release the clamping elastic deformation; After the elastic deformation is released during clamping, the goose head blank is clamped again with a second clamping force less than the first clamping force, and the preset reference area after rough reference machining is fine reference machining to form a machining reference surface.

[0015] By adopting the above technical solution, the elastic deformation of the goose head blank caused by the initial clamping is released before the final forming of the reference surface, avoiding the springback displacement of the reference position after the blank is processed under strong clamping. By performing rough reference machining and fine reference machining in steps, the machining reference surface is made closer to the stable state after the blank is released, which is conducive to improving the precision positioning accuracy of subsequent hydraulic cylinder installation part, injection pipe installation part and connecting bearing part.

[0016] Optionally, during the initial clamping and re-clamping, the clamping positions of the first clamping force and the second clamping force are located on the back arc side of the goose head blank, avoiding the two ends of the C-shaped opening, and / or on the connecting bearing part. The first clamping force and the second clamping force are not applied in the direction that drives the two ends of the C-shaped opening to move closer or further apart.

[0017] By adopting the above technical solutions, the impact of clamping force on the squeezing or spreading of the C-shaped opening is reduced, and the deformation of the blank caused by improper clamping position and force direction is avoided, thereby improving the clamping stability and the reliability of the machining datum surface during datum machining.

[0018] Optionally, after reducing the first clamping force and releasing the clamping elastic deformation of the goose head blank, the change in the opening span of the C-shaped opening before and after reducing the first clamping force is detected, and / or the change in the height of the preset reference area relative to the two ends of the C-shaped opening after rough reference machining is detected. When the change in opening span and / or height exceeds the corresponding preset release threshold, adjust the second clamping force and / or adjust the machining allowance of the precision reference machining.

[0019] By adopting the above technical solution, the springback of the blank is checked after the first clamping and release, so as to avoid different blanks from continuing to be processed according to the fixed clamping force and fixed allowance due to differences in elastic recovery. When the springback is large, the clamping force or subsequent processing allowance is adjusted to make the precision datum machining more in line with the stable state of the blank after release, thereby improving the reliability of the machining datum surface.

[0020] Optionally, in step S6, when finishing at least one of the cylinder mounting part and the injection pipe mounting part based on the machining reference surface, an anti-deformation support device is provided in the C-shaped opening of the goose head blank. The anti-deformation support device includes a telescopic support rod and a first abutting block and a second abutting block respectively disposed at both ends of the telescopic support rod. The first abutting block and the second abutting block respectively abut against the inner walls on both sides of the C-shaped opening to limit the deformation or cutting chatter caused by the two sides of the C-shaped opening approaching each other during the cutting process.

[0021] By adopting the above technical solution, support is formed on the inner side of the C-shaped opening during the finishing process, reducing the situation where the two sides of the opening move inward or chatter under the action of cutting force. This makes the machining process of the cylinder mounting part, the injection pipe mounting part, and the connecting bearing part more stable, thereby improving the machining accuracy of the hole position, assembly surface, and connection position.

[0022] Optionally, the telescopic support rod includes an adjusting rod and a force-limiting locking assembly, wherein the adjusting rod is used to adjust the distance between the first abutment block and the second abutment block; When the abutting force applied by the first abutting block and the second abutting block to the inner walls on both sides of the C-shaped opening reaches the preset support force threshold, the force limiting locking component restricts the adjustment rod from continuing to extend, so as to limit the outward expansion effect of the anti-deformation support device on the C-shaped opening.

[0023] By adopting the above technical solution, the support force of the anti-deformation support device is limited, which avoids the inability to suppress processing deformation when the support is insufficient, and also avoids the C-shaped opening being enlarged when the support is excessive; making the internal support state more stable and controllable, which is conducive to improving the stability of the opening size and processing position during the finishing process.

[0024] Optionally, the first abutting block and / or the second abutting block are provided with machining clearance grooves. The machining clearance grooves are set to correspond to the finishing tool path of the cylinder mounting hole, the cylinder mounting surface, and the injection pipe assembly position, so that the anti-deformation support device avoids the feed path and / or retraction path of the finishing tool while maintaining the support state for the C-shaped opening.

[0025] By adopting the above technical solution, the anti-deformation support device continuously supports the C-shaped opening during the finishing process, while avoiding interference between the abutment block and the tool movement path. This reduces the opening springback or changes in machining state caused by removing the support device midway, making the machining process of the cylinder mounting hole, cylinder mounting surface, injection pipe assembly position, and connecting structure more stable. In summary, this application includes the following beneficial technical effects: the goose head body can be integrally cast to form a C-shaped structure, reducing the weakness at the splicing joints and thus improving the overall strength and structural consistency of the goose head body; post-casting cleaning and heat treatment help reduce the impact of surface defects and internal stress on subsequent processing; and by establishing a positioning basis for subsequent precision machining through datum machining, the cylinder mounting part, injection pipe mounting part, and connecting bearing part can form corresponding assembly structures under the same machining datum, thereby improving the overall structural stability and assembly accuracy of the goose head body. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a first-view structural diagram of the goose head body of the present invention; Figure 2 This is a schematic diagram of the goose head structure from a second perspective of the present invention; Figure 3 This is a schematic diagram of the third-view structure of the goose head body of the present invention; Figure 4 A production process flow diagram of a goose head body for a shoe machine provided in one embodiment of the present invention; Figure 5 This is a schematic diagram of the anti-deformation support device provided in one embodiment of the present invention.

[0028] Reference numerals: 1. Hydraulic cylinder mounting part; 2. Injection pipe mounting part; 3. Connecting bearing part; 4. C-shaped opening; 5. Telescopic support rod; 6. First abutment block; 7. Second abutment block. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0030] This embodiment discloses a manufacturing process for a goose head body used in a shoe machine. The goose head body is used for connection and load-bearing between the hydraulic cylinder, injection molding pipe, and frame structure in the shoe machine. The finished product needs to have hydraulic cylinder mounting holes and surfaces for hydraulic cylinder installation, injection molding pipe assembly positions for injection molding pipe assembly, and connection and mating structures for the goose head body to mate with other structures of the shoe machine.

[0031] Reference Figures 1 to 3 In this embodiment, a C-shaped, integrally formed goose head blank is first obtained through a molding process. The goose head blank has a C-shaped opening 4. The goose head blank has a pre-installed cylinder mounting part 1, an injection pipe mounting part 2, and a connecting support part 3. During blank molding, the cylinder mounting part 1, injection pipe mounting part 2, and connecting support part 3 do not directly form the final assembly dimensions, but rather reserve machining allowances for subsequent cutting. In subsequent finishing processes, the cylinder mounting hole, cylinder mounting surface, injection pipe assembly position, and connecting fit structure are then formed respectively.

[0032] To facilitate the implementation of this process, the production site can be configured with forming stations, cleaning stations, heat treatment stations, inspection stations, reference machining stations, and finishing stations. The forming station may include a mold for forming the goose head blank, a model set inside the mold, a pouring channel for molten metal to enter the mold, and a sand box or mold support structure for placing and fixing the model.

[0033] The cleaning station may include one or more of the following: cutting equipment, shot blasting equipment, grinding tools, and manual sand removal tools. The heat treatment station may include an annealing furnace, a tempering furnace, or other heat treatment equipment capable of stress-relieving the goose head blank. Subsequent inspection stations, reference machining stations, and finishing stations may be equipped with contour inspection equipment, clamping fixtures, CNC machining equipment, cutting tools, and tooling structures for auxiliary support of the goose head blank, as will be further explained in subsequent steps.

[0034] Reference Figure 4 Based on the above workstation and equipment configuration, the production process of this embodiment includes the following steps in sequence: model setting and coating drying, molten metal casting, cutting and surface cleaning after demolding, heat treatment, initial positioning and benchmark processing, and finishing. The following is a detailed description of each step.

[0035] Step S1: Model setup and paint drying before goose head blank forming In this embodiment, before pouring the molten metal, the model used to form the goose head blank is placed, coated, and dried.

[0036] Specifically, a model is placed inside the mold used to form the goose head. The shape of the model matches the shape of the goose head blank to be formed, so that the subsequent molten metal entering the mold can form a C-shaped goose head blank. Corresponding forming areas can be set on the model at the positions of the C-shaped opening 4, the hydraulic cylinder mounting part 1, the injection pipe mounting part 2, and the connecting bearing part 3 of the goose head blank, so that the formed goose head blank can reserve the machining allowance required for subsequent cutting processing at the above-mentioned positions.

[0037] The model can be a lost foam model. After the model is placed inside the mold, it can be supported and positioned by molding sand, sand box, positioning parts, or mold support structure, so that the model maintains the required placement posture during coating application, drying, and subsequent molding processes. For lost foam models, the model can be replaced by molten metal during the pouring process to form the goose-head shape of the blank.

[0038] After the model is placed, a coating is applied to its surface. This coating can be a refractory coating. Once applied, it forms an insulating layer during subsequent pouring, reducing surface instability caused by direct molten metal washing. The coating can be applied by dipping, brushing, or spraying. For the inner side of the C-shaped opening 4, the corresponding area of ​​the cylinder mounting part 1, the corresponding area of ​​the injection pipe mounting part 2, and the corresponding area of ​​the connecting support part 3, additional coating can be applied by brushing or spraying, depending on the model's shape, to ensure adequate coverage.

[0039] After the coating is applied, the model with the coating is dried. Drying can be carried out in a drying chamber, drying oven, or other equipment that can provide a stable hot air environment, ensuring the coating layer reaches the dryness required for subsequent casting. The drying temperature and time can be preset according to the type of coating, coating thickness, model size, and production site conditions. After drying, the coating layer on the model surface remains dry and adheres to the model surface, ready for the subsequent molten metal casting process.

[0040] Step S2: Casting molten metal to form a one-piece goose head blank. In this embodiment, after the model has completed the coating and drying process, the metal material is melted to form a liquid metal, and the liquid metal is introduced into the mold to form a goose head blank.

[0041] Specifically, the metal material can be selected based on the load-bearing requirements of the goose head in the shoe machine, its processing performance, and the subsequent usage environment. The metal material can be cast steel, cast iron, or other metals suitable for casting. After being added to a smelting device, the metal material is heated and melted to form molten metal. The smelting device can be a medium-frequency furnace, an electric furnace, or other equipment capable of melting the corresponding metal material. After the metal material is melted, slag removal, heat preservation, or composition adjustment can be performed according to the material type and production requirements to ensure the molten metal reaches the state required for casting.

[0042] During casting, molten metal is introduced into the mold through the sprue or gating channel. In the case of a lost foam casting mold, the molten metal displaces the space occupied by the mold after entering the mold, and forms the overall shape of the goose head blank in the corresponding molding area of ​​the mold.

[0043] After the molten metal fills the molding space corresponding to the goose head blank in the mold, it cools and solidifies to form a C-shaped, integrally molded goose head blank. This goose head blank has a C-shaped opening 4, and correspondingly forms a cylinder mounting part 1, an injection pipe mounting part 2, and a connecting support part 3. The cylinder mounting part 1, the injection pipe mounting part 2, and the connecting support part 3 are in a blank state during the casting stage, with machining allowances reserved for subsequent cutting operations.

[0044] The hydraulic cylinder mounting part 1 is used to form the hydraulic cylinder mounting hole and hydraulic cylinder mounting surface in subsequent finishing processes; the injection molding pipe mounting part 2 is used to form the injection molding pipe assembly position in subsequent finishing processes; and the connecting bearing part 3 is used to form the connecting and mating structure in subsequent finishing processes. All of the above parts are integrally formed with the main body of the goose head blank in this step, so that the goose head blank already has an integral C-shaped bearing foundation before entering subsequent cleaning, heat treatment, and processing steps.

[0045] Optionally, during model design, different machining allowances can be set for the reserved molding areas corresponding to the cylinder mounting part 1, the injection pipe mounting part 2, and the connecting support part 3. Specifically, the areas of the cylinder mounting part 1 and the injection pipe mounting part 2 corresponding to subsequent hole systems or assembly surfaces can be set with machining allowances greater than those for ordinary outer surfaces, and the areas of the connecting support part 3 corresponding to the connecting and mating structures can be set with corresponding reserved thicknesses based on their subsequent machining depths. Thus, after the gooseneck blank is integrally formed, each functional part can retain sufficient physical allowances to meet subsequent finishing requirements, avoiding insufficient local machining allowances due to differences in wall thickness, shrinkage, or subsequent cutting amounts in different parts.

[0046] Step S3: Cutting and surface cleaning of the goose head blank after demolding In this embodiment, after the molten metal cools and solidifies in the mold to form a goose head blank, the goose head blank is removed from the mold. Demolding can be performed by turning over the mold, opening the mold, demolding, or other methods suitable for removing the casting. For cases where sand molding is used, the molding sand around the goose head blank can be removed first, and then the goose head blank can be taken out.

[0047] After the goose head blank is demolded, it usually retains gates, risers, flash, or excess metal. To facilitate subsequent surface cleaning and heat treatment, the goose head blank is cut to remove the gates and risers. Cutting can be performed using abrasive wheel cutting, sawing, gas cutting, plasma cutting, or other methods suitable for removing casting gates and risers. During cutting, the cutting path can be determined according to the connection position between the gates and risers and the main body of the goose head blank, leaving a trimming allowance that does not affect subsequent finishing, and avoiding damage to the main body of the blank around the cylinder mounting part 1, injection pipe mounting part 2, connecting bearing part 3, and C-shaped opening 4 during the cutting process.

[0048] After removing the riser and gating system, the cut goose head blank undergoes surface cleaning to remove adhering sand. Surface cleaning can include one or more of shot blasting, grinding, and manual sand removal. Shot blasting can be used to remove adhering sand, oxide scale, and loose deposits from the outer surface of the goose head blank; grinding can be used to trim local protrusions, burrs, and residual edges after cutting; manual sand removal can be used to clean areas that are difficult for shot blasting equipment or grinding tools to reach.

[0049] For the inner side of the C-shaped opening 4, around the cylinder mounting part 1, around the injection pipe mounting part 2, and around the connecting bearing part 3 of the goose head blank, local supplementary cleaning can be carried out according to the amount of sand residue. Specifically, handheld sand removal tools, grinding tools, or compressed air blowing can be used to remove local residual sand, so that the surface of the goose head blank reaches the clean state required for subsequent heat treatment and reference machining.

[0050] After surface cleaning, the goose head blank can be visually inspected. This inspection may include checking if the risers and gates have been properly removed, whether there is any obvious sand residue inside the C-shaped opening 4, and whether there are any protrusions or attachments in the blank areas of the cylinder mounting part 1, injection pipe mounting part 2, and connecting support part 3 that could affect subsequent processing. Goose head blanks that meet the requirements for subsequent processing after inspection will proceed to the next heat treatment process.

[0051] Step S4: Heat treatment of the goose head blank In this embodiment, after the goose head blank has been cut and surface cleaned, the surface-cleaned goose head blank is subjected to heat treatment to reduce or release the casting stress inside the goose head blank, so that the goose head blank is in a state suitable for subsequent reference machining and finishing.

[0052] Specifically, the cleaned goose head blank is placed into a heat treatment device. This device can be an annealing furnace, tempering furnace, bogie hearth furnace, or other equipment capable of meeting the heat treatment requirements of the goose head blank. Before placing the goose head blank into the heat treatment device, the surface of the blank should be checked for any adhering sand, oxide scale buildup, or obvious burr residue that could affect heat treatment. For areas still with localized deposits, further cleaning can be performed before proceeding with the heat treatment.

[0053] Optionally, during the heat treatment of the goose head blank, the blank can be placed on a heat-resistant support, so that the back arc side or connecting bearing part 3 of the blank is in a primarily supported state, and limiting supports are provided at both ends of the C-shaped opening 4. A preset limiting gap can be maintained between the limiting supports and the ends of the C-shaped opening 4, allowing for slight thermal deformation release at both ends of the C-shaped opening 4 during heat treatment, while limiting the opening when the deformation exceeds the preset limiting gap. The limiting supports can be heat-resistant pads, heat-resistant blocks, or adjustable limiting blocks provided on the heat treatment bracket.

[0054] Heat treatment can include annealing, tempering, and cooling. During annealing, the goose head blank is heated to a preset annealing temperature and held at that temperature to release the internal stress generated during casting. The preset annealing temperature and holding time can be pre-set according to the type of metal material, wall thickness, overall dimensions, and internal stress state of the goose head blank. Since the goose head blank has a C-shaped structure, and the wall thickness and shape of the cylinder mounting part 1, injection pipe mounting part 2, and connecting bearing part 3 may differ, annealing can keep the goose head blank in a stable position in the furnace, reducing local deformation caused by unstable support during heat treatment.

[0055] After annealing, the goose head blank can be tempered. Tempering is used to further adjust the microstructure of the goose head blank and reduce any residual local stress after annealing. The tempering temperature and holding time can be preset according to the material grade of the goose head blank, the annealing state, and the required precision of subsequent processing. Annealing and tempering can be performed continuously in the same heat treatment equipment or separately in different heat treatment equipment.

[0056] After tempering, the goose head blank undergoes cooling. Cooling can be achieved through furnace cooling, air cooling, or other cooling methods suitable for the corresponding metal material, allowing the goose head blank to gradually cool to a temperature suitable for subsequent processing. The cooling method can be selected based on the material type, wall thickness, and dimensions of the goose head blank to avoid excessively rapid cooling that could cause new internal stress concentration or localized deformation.

[0057] After heat treatment, the goose head blank can be inspected for condition. This inspection includes checking for obvious cracks, warping, deformation, or other abnormalities on the surface of the blank that could affect subsequent processing, and confirming that the cylinder mounting section 1, injection pipe mounting section 2, and connecting support section 3 still retain the machining allowance required for subsequent finishing. The heat-treated goose head blank then proceeds to the subsequent initial positioning and reference machining processes.

[0058] Step S5: Initial positioning of the goose head blank and formation of the machining reference surface In this embodiment, after the goose head blank undergoes heat treatment, it enters the reference machining process. Before reference machining, the initial positioning posture and preset reference area are determined based on the actual shape of the goose head blank. Then, the preset reference area is reference machined to form a machining reference surface for subsequent finishing.

[0059] Step S5-1: Contour inspection of the goose head blank after heat treatment Before entering the reference machining process, the heat-treated goose head blank is placed at the inspection station. The inspection station can be equipped with 3D scanning equipment, multi-point contact measuring equipment, coordinate measuring machine, or other inspection equipment capable of acquiring the contour data of the goose head blank.

[0060] During testing, the span of the C-shaped opening 4, the height difference between the two ends of the C-shaped opening 4, and the offset of the back arc side of the goose head blank relative to the theoretical contour are obtained. Among them, the span of the opening can be the distance between the preset measurement points on both sides of the C-shaped opening 4; the height difference can be the positional difference between the two ends of the C-shaped opening 4 in the preset height reference direction; and the offset can be the spatial deviation of the actual contour of the back arc side of the goose head blank relative to the preset theoretical contour.

[0061] In one embodiment, the actual contour data of the goose head blank can be obtained by three-dimensional scanning, which can be laser scanning, structured light scanning, or other non-contact scanning methods. In another embodiment, the actual contour data of the goose head blank can also be obtained by multi-point contact measurement, for example, by using a contact probe to collect multiple measurement points at both ends of the C-shaped opening 4, the back arc side, and around each installation part.

[0062] After obtaining the actual contour data, the actual contour data is fitted and compared with the theoretical 3D model of the goose head to calculate the opening span, height difference, and offset. The theoretical 3D model can be a theoretical model of the goose head blank, or a theoretical model of the finished goose head formed by superimposing machining allowances. The theoretical contour can be determined by the contour line or contour surface corresponding to the back arc side in the theoretical 3D model.

[0063] Step S5-2: Determining the initial positioning attitude and preset reference area By fitting and comparing data, it can be determined whether the heat-treated goose head blank has opening deformation, end height deviation, or back arc side offset relative to the theoretical contour. When at least one of the opening span, height difference, or offset exceeds the corresponding preset deviation range, the initial positioning posture of the goose head blank is adjusted according to the detection results, and the preset reference area is redefined. The preset deviation range can be preset according to the goose head model, blank size, subsequent machining allowance, and machining accuracy requirements.

[0064] When determining the initial positioning posture, the machining allowance of the cylinder mounting part 1, injection pipe mounting part 2, and connecting bearing part 3 under different candidate positioning postures can be calculated based on the fitting comparison results. The candidate positioning postures can be obtained by adjusting the placement angle, support height, lateral position, or end limit position of the goose head blank in the reference machining station.

[0065] The machining allowance can be determined based on the distance between the actual contour data and the theoretical machining surface in the machining direction or normal direction. When the machining allowance of the cylinder mounting part 1, the injection pipe mounting part 2, and the connecting bearing part 3 is not less than the corresponding preset minimum machining allowance under a certain candidate positioning posture, the candidate positioning posture can be determined as the initial positioning posture, and the preset reference area can be determined based on the initial positioning posture.

[0066] If, under multiple candidate positioning postures, the machining allowance of at least one of the following parts—cylinder mounting part 1, injection pipe mounting part 2, and connecting bearing part 3—cannot meet the corresponding preset minimum machining allowance, then the goose head blank is deemed unsuitable for direct entry into the reference machining process. In this case, the goose head blank can be marked as a blank to be reviewed, and subjected to manual re-inspection, partial trimming, or rejection to avoid continuing machining with insufficient machining allowance, which could result in the inability to form subsequent holes, assembly surfaces, or connection positions.

[0067] If the opening span, height difference, and offset do not exceed the corresponding preset deviation range, then subsequent reference processing can proceed according to the preset initial positioning posture and preset reference area.

[0068] Step S5-3: Composition of the preset reference area In this embodiment, the preset reference area is not just a single planar area, but includes the back arc support area on the back arc side of the goose head blank, the end limiting area at both ends of the C-shaped opening 4, and the lateral positioning area on one side of the thickness direction of the goose head blank.

[0069] During subsequent datum machining of the preset datum area, a back-arc support datum surface is formed in the back-arc support area, an end-limiting datum surface is formed in the end-limiting area, and a lateral positioning datum surface is formed in the lateral positioning area. The back-arc support datum surface, the end-limiting datum surface, and the lateral positioning datum surface together form the machining datum surface, giving the goose-head blank a positioning foundation in the support direction, the C-shaped opening 4 end direction, and the thickness direction.

[0070] Step S5-4: Initial clamping and rough datum machining After determining the initial positioning posture and preset reference area, the goose head blank is transferred to the reference machining station. The reference machining station may include a reference machining fixture and a CNC machining equipment. The reference machining fixture is used to position and clamp the goose head blank according to the determined initial positioning posture.

[0071] After the goose head blank is placed into the datum machining fixture, it is initially clamped with the first clamping force, and rough datum machining is performed on the preset datum area. Rough datum machining can remove the casting allowance and local uneven areas on the surface of the preset datum area, so that the preset datum area forms a preliminary datum surface for subsequent fine datum machining.

[0072] During initial clamping, the clamping position of the first clamping force can be located on the back arc side of the goose head blank, avoiding both ends of the C-shaped opening 4, and / or on the connecting bearing part 3. The direction of the first clamping force is not applied in the direction that drives the two ends of the C-shaped opening 4 towards or away from each other, so as to reduce the direct action of the clamping force on the ends of the C-shaped opening 4. The first clamping force can be generated by a hydraulic clamp, pneumatic clamp, mechanical clamping element, or other clamping mechanism capable of providing clamping force.

[0073] Step S5-5: Clamping elastic deformation release and post-release verification After the rough datum machining is completed, the initial clamping force is reduced to release the elastic deformation of the goose head blank. Reducing the initial clamping force can be achieved by lowering the clamping pressure of the hydraulic or pneumatic clamps, or by loosening the mechanical clamping components to a preset release state. After reducing the initial clamping force, the elastic deformation of the goose head blank caused by the initial clamping is released, making the preset datum area after rough datum machining close to the actual state of the blank after release.

[0074] To determine whether the clamping elastic deformation has stabilized, the opening span of the C-shaped opening 4 can be repeatedly checked at preset time intervals after reducing the first clamping force, and / or the height of the preset reference area after rough datum machining relative to the two ends of the C-shaped opening 4 can be repeatedly checked. When the difference in opening span and / or height obtained from the two consecutive checks is less than the preset stabilization threshold, it can be determined that the clamping elastic deformation release of the goose head blank has stabilized, and then clamping and fine datum machining can be performed again.

[0075] After reducing the first clamping force and releasing the clamping elastic deformation of the goose head blank, the change in the opening span of the C-shaped opening 4 before and after reducing the first clamping force can be detected, and / or the change in the height of the preset reference area after rough reference machining relative to the two ends of the C-shaped opening 4 can be detected.

[0076] The change in opening span can be the difference in span of the C-shaped opening 4 before and after reducing the first clamping force; the change in height can be the change in height difference between the preset reference area after rough datum machining and the preset measurement positions at both ends of the C-shaped opening 4 before and after reducing the first clamping force. The preset release threshold can be preset according to the allowable reference surface position deviation of the corresponding model goose head body, the allowable deviation of the C-shaped opening 4 size, or the subsequent finishing accuracy requirements.

[0077] When the change in opening span and / or height exceeds the corresponding preset release threshold, adjust the second clamping force and / or adjust the machining allowance of the precision datum machining. For example, when the change in opening span is large, the second clamping force can be reduced or the application position of the second clamping force can be adjusted; when the change in height of the preset datum area after rough datum machining is large, the cutting allowance during precision datum machining can be adjusted so that the final machined datum surface adapts to the state of the goose head blank after release.

[0078] Steps S5-6: Re-clamping and precision machining After the elastic deformation is released during clamping, the goose head blank is clamped again with a second clamping force less than the first clamping force. During re-clamping, the clamping position of the second clamping force can be located on the back arc side of the goose head blank, avoiding the two ends of the C-shaped opening 4, and / or located on the connecting bearing part 3; the direction of the second clamping force is not applied in the direction that drives the two ends of the C-shaped opening 4 to move closer or further apart from each other.

[0079] After re-clamping, the preset datum area after rough datum machining is subjected to fine datum machining to form a machining datum surface. Fine datum machining can include milling, grinding, or other machining methods that can form a stable datum surface. Through fine datum machining, a back arc support datum surface is formed in the back arc support area, an end limit datum surface is formed in the end limit area, and a lateral positioning datum surface is formed in the lateral positioning area.

[0080] After the datum machining is completed, the datum surfaces can be inspected. The inspection may include the flatness of the datum surfaces, their relative positions, and their relative positions to the two ends of the C-shaped opening 4. Once the inspection confirms that the datum surfaces meet the requirements for subsequent finishing, the goose head blank proceeds to the next finishing process.

[0081] Step S6: Finishing based on the machining reference surface and C-shaped opening 4 anti-deformation support In this embodiment, after the goose head blank completes the datum machining and forms the machining datum surface, the goose head blank is transferred to the finishing station. The finishing station may include CNC machining equipment, a finishing fixture for supporting and positioning the goose head blank, drilling or boring tools for machining the cylinder mounting holes, milling, drilling, boring or combined machining tools for machining the cylinder mounting surface and connecting mating structure, and drilling, boring, milling or combined machining tools for machining the injection molding pipe assembly position.

[0082] Specifically, the goose head blank is positioned on a finishing fixture using a machining reference surface. This machining reference surface may include the aforementioned back arc support reference surface, end limiting reference surface, and lateral positioning reference surface, ensuring the goose head blank maintains a defined position in the support direction, the end direction of the C-shaped opening 4, and the thickness direction. After positioning, the cylinder mounting portion 1, the injection pipe mounting portion 2, and the connecting bearing portion 3 are finished based on the machining reference surface.

[0083] During the finishing process of the cylinder mounting section 1, cylinder mounting holes and cylinder mounting surfaces can be formed in the cylinder mounting section 1 by drilling, reaming, boring, milling, or other cutting methods. The cylinder mounting holes are used for mounting the cylinder or cylinder connector, and the cylinder mounting surfaces are used to mate with the cylinder mounting end face or corresponding connecting structure. During the finishing process of the injection molding pipe mounting section 2, the injection molding pipe assembly position can be formed. The injection molding pipe assembly position can be an assembly hole, assembly groove, assembly surface, or a composite assembly structure for positioning the injection molding pipe. During the finishing process of the connecting bearing section 3, a connecting mating structure can be formed so that the gooseneck body can be positioned, supported, or connected to the shoe machine frame or other bearing structure.

[0084] Because the goose head blank has a C-shaped opening 4, during finishing processes such as milling, boring, and drilling of at least one of the cylinder mounting part 1 and the injection pipe mounting part 2, the cutting force may cause the two sides of the C-shaped opening 4 to tend to move closer together, or cause cutting chatter in the machining area. Therefore, before or during finishing, an anti-deformation support device can be installed inside the C-shaped opening 4 of the goose head blank.

[0085] Step S6-1: Installation of anti-deformation support device Reference Figure 5 In this embodiment, the anti-deformation support device includes a telescopic support rod 5, and a first abutment block 6 and a second abutment block 7 respectively disposed at both ends of the telescopic support rod 5. The first abutment block 6 and the second abutment block 7 are respectively used to abut against the inner walls on both sides of the C-shaped opening 4.

[0086] When installing the anti-deformation support device, place the telescopic support rod 5 inside the C-shaped opening 4 of the goose head blank, and adjust the length of the telescopic support rod 5 so that the first abutting block 6 and the second abutting block 7 abut against the inner walls on both sides of the C-shaped opening 4, respectively. After the first abutting block 6 and the second abutting block 7 are in place, the anti-deformation support device forms an internal support between the inner walls on both sides of the C-shaped opening 4 to limit the deformation or cutting chatter that occurs when the two sides of the C-shaped opening 4 move closer to each other during the cutting process.

[0087] Optionally, multiple candidate support positions can be preset within the C-shaped opening 4. These candidate positions correspond to the finishing areas of the hydraulic cylinder mounting section 1, the injection molding pipe mounting section 2, or the connecting support section 3, respectively. Before finishing a specific functional part, an anti-deformation support device can be installed at one of the candidate positions based on the machining location and tool path of that functional part. This ensures the anti-deformation support device is close to the current cutting force area while avoiding the feed and retraction paths of the corresponding tool. For multiple functional parts with different machining sequences, the installation position of the anti-deformation support device can be adjusted at different machining stages, or multiple anti-deformation support devices can be installed at different candidate support positions.

[0088] The first abutting block 6 and the second abutting block 7 can adopt a planar abutting structure, an arc-shaped abutting structure, or a contour-following abutting structure that matches the local shape of the inner wall of the C-shaped opening 4. A wear-resistant layer, an anti-slip layer, or a buffer layer can also be provided on the side of the first abutting block 6 and the second abutting block 7 that contacts the inner wall of the C-shaped opening 4 to reduce pressure damage to the inner wall of the blank during the abutting process. The telescopic support rod 5 can be set along the width direction of the C-shaped opening 4, or it can be set at an angle according to the positional relationship of the inner walls on both sides of the C-shaped opening 4, as long as it can provide support for parts that are prone to convergence or chattering during finishing.

[0089] Step S6-2: Adjustment of the force limit of the telescopic support rod 5 To prevent insufficient or excessive support from the anti-deformation support device, the telescopic support rod 5 may include an adjusting rod and a force-limiting locking assembly. The adjusting rod is used to adjust the distance between the first abutment block 6 and the second abutment block 7, so that the first abutment block 6 and the second abutment block 7 can respectively abut against the inner walls on both sides of the C-shaped opening 4.

[0090] The adjusting rod can be a threaded adjusting rod, a lead screw adjusting rod, a hydraulic telescopic rod, a pneumatic telescopic rod, or other rods capable of adjusting length. During operation, by rotating, pushing, or driving the adjusting rod, the first abutting block 6 and the second abutting block 7 gradually approach and abut against the inner walls on both sides of the C-shaped opening 4. When the abutting force applied by the first abutting block 6 and the second abutting block 7 against the inner walls on both sides of the C-shaped opening 4 reaches a preset support force threshold, the force-limiting locking assembly restricts the adjusting rod from further extending, thereby limiting the outward expansion effect of the anti-deformation support device on the C-shaped opening 4.

[0091] The force-limiting locking assembly can employ a torque-limiting structure, an elastic force-limiting structure, a friction locking structure, a pawl-limiting structure, or other structural forms capable of limiting the continued extension of the adjusting rod. For example, when the adjusting rod is a threaded adjusting rod, the force-limiting locking assembly can be a torque-limiting component that mates with the adjusting rod; when the adjusting rod is a hydraulic telescopic rod, the force-limiting locking assembly can be a pressure-limiting valve or a pressure-locking structure. The preset support force threshold can be pre-set based on the gooseneck blank material, the stiffness of the C-shaped opening, the location of the machining part, and the cutting load.

[0092] Through the above force-limiting adjustment, the anti-deformation support device can provide appropriate support within the C-shaped opening 4, which avoids the support force being too small to suppress the opening from closing or chattering during the cutting process, and also avoids the support force being too large to actively open the C-shaped opening 4.

[0093] Step S6-3: Machining the clearance groove and toolpath avoidance Since the anti-deformation support device is located within the C-shaped opening 4, if the first abutment block 6 or the second abutment block 7 interferes with the feed path or retraction path of the finishing tool, it may be necessary to disassemble the anti-deformation support device during machining, thereby affecting the continuous support state. Therefore, in this embodiment, the first abutment block 6 and / or the second abutment block 7 are provided with machining clearance grooves.

[0094] The machining clearance groove corresponds to the finishing toolpath setting for cylinder mounting holes, cylinder mounting surfaces, injection molding pipe assembly positions, and / or connecting mating structures. The machining clearance groove can be a through groove, an arc groove, a partial notch, a stepped groove, or other groove-shaped structure that can avoid the tool movement path. The position, width, and depth of the machining clearance groove can be predetermined based on the machining tool diameter, feed direction, retraction direction, and machining overtravel range for the corresponding part.

[0095] For example, when the finishing tool needs to bore or enlarge the cylinder mounting hole through the inner side of the C-shaped opening 4, the machining clearance groove can be set at a position corresponding to the tool feed direction to avoid the tool feed path; when the finishing tool needs to exit along the original path or an inclined path after completing the machining, the machining clearance groove can simultaneously avoid the tool retraction path. For goose head blanks of different specifications, the first abutment block 6 and the second abutment block 7 can be equipped with machining clearance grooves of different shapes, or replaceable abutment blocks can be used to adapt to different machining paths.

[0096] By setting a machining clearance groove, the anti-deformation support device can avoid the feed path and / or retraction path of the finishing tool while maintaining support for the C-shaped opening 4, so that the anti-deformation support device can maintain support during the finishing process of the cylinder mounting part 1, the injection pipe mounting part 2 and / or the connecting bearing part 3.

[0097] Step S6-4: Finishing of each functional part is completed. After the anti-deformation support device is in the supported state, the cylinder mounting part 1, the injection pipe mounting part 2, and the connecting bearing part 3 are precision machined according to the machining sequence. The machining sequence can be determined based on the structure of the goose head blank, the machine tool layout, the tool path, and the clamping status.

[0098] In one embodiment, the cylinder mounting holes and cylinder mounting surfaces can be machined first, followed by the injection molding pipe assembly position, and finally the connecting and mating structure on the connecting bearing part 3. In other embodiments, the above machining sequence can be adjusted according to the actual machining equipment, clamping method, and machining path.

[0099] After finishing, the anti-deformation support device can be released and removed from the C-shaped opening 4. Then, the dimensional and positional checks of the machined gooseneck body can be performed. The checks may include the diameter, position, and axial position of the hydraulic cylinder mounting holes; the flatness of the hydraulic cylinder mounting surface; the dimensions and position of the injection molding pipe assembly location; and the machining dimensions and relative positions of the connecting and mating structures. Once the inspection confirms that the assembly requirements are met, the gooseneck body for the shoe machine is obtained.

[0100] The implementation principle of the production process of a goose head body for a shoe machine according to an embodiment of this application is as follows: First, a C-shaped, integrally formed goose head body blank is obtained through model setting, paint drying, and molten metal pouring. Then, the goose head body blank is cut, surface cleaned, and heat-treated to bring it into a state suitable for subsequent processing. Subsequently, the initial positioning posture and preset reference area are determined according to the actual contour state of the heat-treated goose head body blank, and a processing reference surface is formed through rough reference machining, clamping elastic deformation release, and fine reference machining. Finally, the cylinder mounting part 1, injection pipe mounting part 2, and connecting bearing part 3 are finely machined based on the processing reference surface, and the C-shaped opening 4 is supported by an anti-deformation support device when necessary to obtain the goose head body for the shoe machine.

[0101] The above embodiments are merely preferred embodiments of this application and are not intended to limit the scope of protection of this application. Any equivalent substitutions or conventional adjustments made by those skilled in the art to the equipment, testing methods, clamping methods, processing methods or support structures of each process without departing from the technical concept of this application shall fall within the scope of protection of this application.

Claims

1. A manufacturing process for a goose head body used in shoe machinery, characterized in that: Includes the following steps: S1. Place a model inside a mold for forming a goose head, apply a coating to the surface of the model, and dry the model with the coating. S2. Melt the metal material to form a liquid metal, and introduce the liquid metal into the mold to form the liquid metal in the mold, thereby obtaining a goose head blank with a C-shaped structure and integral molding. The goose head blank has a C-shaped opening (4) and a cylinder mounting part (1), an injection pipe mounting part (2) and a connecting bearing part (3) with a pre-reserved machining allowance. S3. After the goose head blank is demolded, it is cut to remove the gating gate, and the cut goose head blank is cleaned to remove the sand adhering to the surface of the goose head blank. S4. Heat-treat the goose head blank after surface cleaning; S5. Initially position the heat-treated goose head blank and perform reference machining on the preset reference area of ​​the goose head blank to form a machining reference surface. S6. Based on the machining reference surface, the cylinder mounting part (1), the injection pipe mounting part (2) and the connecting bearing part (3) are precision machined to form a cylinder mounting hole and a cylinder mounting surface in the cylinder mounting part (1), an injection pipe assembly position in the injection pipe mounting part (2), and a connecting fit structure in the connecting bearing part (3) to obtain a goose head body for shoe machines.

2. The production process of the goose head body for shoe machinery according to claim 1, characterized in that: In step S5, before the initial positioning of the heat-treated goose head blank, the opening span of the C-shaped opening (4), the height difference between the two ends of the C-shaped opening (4), and the offset of the back arc side of the goose head blank relative to the theoretical contour are detected. When at least one of the opening span, height difference, or offset exceeds the corresponding preset deviation range, the initial positioning posture of the goose head blank is adjusted according to the detection results, and the preset reference area is redefined so that the machining allowance of the cylinder mounting part (1), the injection pipe mounting part (2), and the connecting bearing part (3) is not less than the corresponding preset minimum machining allowance.

3. The production process of the goose head body for a shoe machine according to claim 2, characterized in that: The preset reference area includes the back arc support area on the back arc side of the goose head blank, the end limiting area at both ends of the C-shaped opening (4), and the lateral positioning area on one side of the thickness direction of the goose head blank. The pre-defined reference area of ​​the goose head blank is processed by reference machining, including: forming a back arc support reference surface in the back arc support area, forming an end limit reference surface in the end limit area, and forming a lateral positioning reference surface in the lateral positioning area.

4. The production process of the goose head body for a shoe machine according to claim 2 or 3, characterized in that: The actual contour data of the goose head blank is obtained by three-dimensional scanning or multi-point contact measurement, and the actual contour data is fitted and compared with the theoretical three-dimensional model of the goose head to calculate the opening span, height difference and offset. Based on the fitting comparison results, the machining allowance of the cylinder mounting part (1), the injection pipe mounting part (2) and the connecting bearing part (3) under different candidate positioning postures is calculated, and the initial positioning posture and the preset reference area are determined from the candidate positioning postures in which the machining allowance is not less than the corresponding preset minimum machining allowance.

5. The production process of the goose head body for a shoe machine according to claim 1, characterized in that: In step S5, the preset reference area of ​​the goose head blank is subjected to reference processing, including: First, the goose head blank is initially clamped with a first clamping force, and the preset reference area is rough reference machined. Then reduce the first clamping force to allow the goose head blank to release the clamping elastic deformation; After the elastic deformation is released during clamping, the goose head blank is clamped again with a second clamping force less than the first clamping force, and the preset reference area after rough reference machining is fine reference machining to form a machining reference surface.

6. The production process of the goose head body for a shoe machine according to claim 5, characterized in that: During the initial clamping and re-clamping, the clamping positions of the first clamping force and the second clamping force are located on the back arc side of the goose head blank, avoiding the two ends of the C-shaped opening (4), and / or on the connecting bearing part (3); The first clamping force and the second clamping force are applied in directions that do not drive the two ends of the C-shaped opening (4) to move closer or further apart from each other.

7. A production process for a goose head body for a shoe machine according to claim 5 or 6, characterized in that: After reducing the first clamping force and releasing the clamping elastic deformation of the goose head blank, the change in the opening span of the C-shaped opening (4) before and after reducing the first clamping force is detected, and / or the change in the height of the preset reference area relative to both ends of the C-shaped opening (4) after rough reference machining is detected. When the change in opening span and / or height exceeds the corresponding preset release threshold, adjust the second clamping force and / or adjust the machining allowance of the precision reference machining.

8. The production process of the goose head body for a shoe machine according to claim 1, characterized in that: In step S6, when at least one of the cylinder mounting part (1) and the injection pipe mounting part (2) is precision machined based on the machining reference surface, an anti-deformation support device is provided in the C-shaped opening (4) of the goose head blank; The anti-deformation support device includes a telescopic support rod (5), and a first abutting block (6) and a second abutting block (7) respectively disposed at both ends of the telescopic support rod (5). The first abutting block (6) and the second abutting block (7) respectively abut against the inner walls on both sides of the C-shaped opening (4) to limit the deformation or cutting chatter of the two sides of the C-shaped opening (4) from moving closer to each other during the cutting process.

9. The production process of the goose head body for a shoe machine according to claim 8, characterized in that: The retractable support rod (5) includes an adjusting rod and a force-limiting locking assembly. The adjusting rod is used to adjust the distance between the first abutment block (6) and the second abutment block (7). When the abutting force applied by the first abutting block (6) and the second abutting block (7) to the inner walls on both sides of the C-shaped opening (4) reaches the preset support force threshold, the force limiting locking assembly restricts the adjustment rod from continuing to extend, so as to limit the outward expansion effect of the anti-deformation support device on the C-shaped opening (4).

10. A production process for a goose head body for a shoe machine according to claim 8 or 9, characterized in that: The first abutting block (6) and / or the second abutting block (7) are provided with machining clearance grooves. The machining clearance grooves are set according to the finishing tool path of the cylinder mounting hole, the cylinder mounting surface, and the injection pipe assembly position, so that the anti-deformation support device avoids the feed path and / or retraction path of the finishing tool while maintaining the support state of the C-shaped opening (4).

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