42 results about "Deformation Problem" patented technology

The invention relates to an injection molding machine self-adaptive machining control method and system based on material characteristics, and relates to the technical field of injection molding machining control. The method comprises the steps that material characteristic data and initial control parameters of injection molding materials produced by an injection molding machine are collected; according to the material characteristic data and the initial control parameters, injection molding machining flash prediction is conducted, and the flash size is obtained; adjusting step length according to the flash size configuration, optimizing the initial control parameters to obtain adjusted control parameters, predicting injection molding processing flash and injection molding short-shot deformation, and obtaining adjusted flash size and adjusted short-shot parameters; injection molding cost parameters and injection molding quality parameters are obtained through calculation according to the adjusted flash size and the adjusted short shot parameters, optimal control parameters are obtained through iterative optimization, and machining control is conducted. The method solves the problems that a traditional machining control method mostly depends on fixed parameter machining, material characteristic fluctuation is difficult to cope with, burrs formed when materials overflow from a mold and product deformation caused by short injection cannot be solved, and the product quality machining precision is insufficient.

The application relates to an injection molding machine adaptive processing control method and system based on material characteristics, and relates to the technical field of injection molding processing control, and comprises the following steps: collecting material characteristic data and initial control parameters of injection molding materials produced by an injection molding machine; performing injection molding processing flash prediction according to the material characteristic data and the initial control parameters to obtain a flash size; adjusting a step length according to the flash size, optimizing the initial control parameters to obtain adjusted control parameters, and predicting injection molding processing flash and injection molding short shot deformation to obtain an adjusted flash size and an adjusted short shot parameter; and calculating the injection molding cost parameter and the injection molding quality parameter according to the adjusted flash size and the adjusted short shot parameter, iteratively optimizing the optimal control parameter, and performing processing control. The application solves the problem that the traditional processing control method depends on fixed parameter processing, cannot cope with material characteristic fluctuation, cannot solve the product deformation problem caused by burrs and short shots formed by material overflow from a mold, and causes insufficient product quality and processing precision.

The present application relates to a kind of carbon fiber composite reflector mould surface new design method, belong to satellite antenna field;For the thermal deformation in the curing process of reflector, chemical shrinkage deformation and the deformation problem caused by mould, consider the thermal deformation influence of carbon fiber resin matrix composite material from rubber state to glass state whole cycle process, and according to the mould surface compensation of thermal deformation analysis result is carried out.Formation of reflector three-dimensional analysis model;The reflector is according to the rubber state and glass state of corresponding solidification process Double-state whole solidification cycle thermal deformation analysis is carried out, and three-point boundary constraint analysis method is proposed, and it is consistent with the working condition of reflector curing;In the solidification cycle of reflector, the interfacial stress of mould to reflector is extracted, and it is superimposed into reflector thermal deformation and is compensated jointly, through the thermal deformation joint compensation of reflector and mould, the mould surface design for high-precision composite material reflector manufacturing is realized, meet the need of high-precision antenna reflector to surface precision.

The utility model discloses a special indexing device for processing a titanium alloy workpiece, which belongs to the technical field of titanium alloy workpiece processing and comprises a base and a plate body positioned on the base, the plate body is integrally welded on the base, an indexing plate designed in a C shape is mounted on the inner side of the plate body, and the indexing plate is positioned on the base. A ratchet wheel and a pawl installed above the ratchet wheel are further arranged in the disc body, a handle is further installed in the disc body, the handle is of a cylindrical design, and one side of the handle penetrates through the side portion of the disc body and horizontally extends to the outside, so that people can operate the handle on the outer side of the disc body, and the handle is connected with the ratchet wheel in a matched mode. The ratchet wheel can be driven when the handle rotates, and a plurality of semi-annular cams are installed on the inner wall of the disc body. According to the indexing device special for machining the titanium alloy workpiece, the machining efficiency of titanium parts is improved, the workpiece deformation problem caused by strict control over the clamping force is solved, the rejection rate of products is greatly reduced, and the strict size precision is controlled.

The utility model belongs to the field of titanium anode plate machining, particularly relates to a pneumatic bending machine for a titanium anode plate, and aims to solve the problems that an existing bending machine is prone to deviation in the machining process, the reject ratio of products is increased, materials are wasted, and deflection deformation is caused by deformation of a machine frame and a sliding part. Comprising a machine frame, a lower die, an upper die and a deflection correction mechanism, the deflection correction mechanism is arranged between sliding rails on the inner wall of the machine frame in a sliding mode and used for correcting deflection deformation, the deflection deformation can be effectively corrected, the overall length consistency of the bending angle of the titanium anode plate is guaranteed, and the machining precision and the product percent of pass are improved; accurate control and stable supporting are achieved, the production efficiency is improved, and the production cost is reduced; and through an intelligent control mechanism, the operation convenience and the equipment automation level are improved.

The utility model discloses a tool for forming a molded part with a notch, which belongs to the technical field of molded part processing and comprises an upper module, a lower module is arranged on the lower surface of the upper module, an upper bump is fixedly mounted on the inner wall of the top of the upper module, and a lower bump is fixedly mounted on the inner wall of the bottom of the lower module. The inner side faces of the upper die block and the lower die block are each provided with a notch cavity. According to the tool for forming the molded part with the notch, the elastic extrusion device is arranged, and during demolding, an extrusion spring can provide buffering force, so that the molded part is gradually separated from the notch of the tool, the problems of cracks and deformation at the notch caused by too large instant external force are solved, and the demolding yield of the molded part is greatly increased; due to the adjustability of the elastic extrusion device, the tool can adapt to production of notched molded parts with different size and shape requirements, the extrusion force can be changed by adjusting the compression degree of the extrusion spring, and machining of the molded parts with different materials and process requirements is met.

The application relates to the technical field of precision machining machine tools, and discloses a milling mechanism and method for a compound lathe, which comprises a milling execution module for milling a workpiece, a workpiece fixing module for clamping and driving the workpiece, an auxiliary supporting module, and a control module; the auxiliary supporting module is used for providing dynamic support for the workpiece during milling, and comprises a supporting assembly, a displacement driving unit, a detection unit, and a position calibration unit; the supporting assembly is used for being in contact with the surface of the workpiece; the displacement driving unit is connected with the supporting assembly and is used for driving the supporting assembly to move along the axial direction of the workpiece. According to the application, the auxiliary supporting module is arranged, the static deflection deformation problem of an elongated shaft caused by insufficient rigidity of the elongated shaft is solved, the module provides accurate radial supporting force by tracking a milling point in real time, the bending of the workpiece during machining is directly compensated, the straightness, cylindricity and other geometric tolerances of the workpiece are ensured, and the machining geometric precision is improved.

This application belongs to the field of cleaning robot technology, specifically relating to a non-deformable space installation structure using a jig. It includes a base shell and a collision drop bracket. The base shell has a movable groove for the collision drop bracket to connect and mate with. The movable groove allows the collision drop bracket to extend upwards in a first orientation and restricts its downward disengagement in a second orientation. This application achieves pressure-free assembly by designing the movable groove to only allow the collision drop bracket to extend upwards in the first orientation and restrict its downward disengagement in the second orientation. This fundamentally avoids the problem of plastic deformation caused by external force during installation, ensuring the buckle height and structural integrity. Simultaneously, this directional assembly method and the precise constraint of the movable groove allow the bracket to maintain a preset minimum movement gap within the groove for smooth forward and backward sliding, while effectively suppressing wobbling caused by excessive gaps.

The utility model discloses a saddle welding anti-deformation tool which comprises a saddle body, a first processing assembly is arranged at one end of the saddle body, second processing assemblies are arranged on the two sides of the first processing assembly, through the arrangement of the first processing assembly, the saddle body can be accurately positioned and rigidly fixed, and the saddle body can be firmly fixed. The problem of bottom plate deformation caused by thermal stress in the welding process is effectively restrained, the deformation risk caused by infirm fixation in a traditional spot welding process is avoided, then the second processing assembly is matched with the adjusting screw through the two-way screw, saddle bodies of different sizes can be flexibly matched, multi-direction fine adjustment is achieved, and the welding quality is improved. And the flatness and the assembly precision of the saddle before welding are ensured, and the flatness standard with high requirements is met, so that the procedures of manual shaping and grinding are reduced, the production period is remarkably shortened, the rework rate and material waste are reduced, and the overall production efficiency is improved.

The present invention relates to the technical field of pulley casting molds, and discloses a grooved pulley casting mold and a casting method thereof, comprising a base plate and an adapted mold body, wherein a coaxially connected turntable and an adjusting roller are installed on the mold core column. In terms of workpiece forming and mold protection, the present invention uses the indentation plates staggered and evenly distributed on the side walls of the mold core column to achieve local and gradual separation of the mold core and the workpiece, thereby avoiding the problem of workpiece deformation caused by uneven force and effectively ensuring the forming quality of the grooved pulley; at the same time, through the linkage design of the adjusting roller, the sleeve and the spring plate, the deformation position of the spring plate gradually changes, thereby avoiding the impact force generated by the instantaneous separation of the workpiece and the mold core, and preventing the mold core from being damaged due to the concentration of demolding stress. This innovative design not only ensures the high-precision forming of the workpiece, but also significantly improves the durability of the mold, reduces the production loss and cost caused by poor workpieces and mold damage, and achieves a dual improvement in workpiece quality and mold life.

To solve the technical problem that the existing mechanical auxiliary support cannot realize the elastic deformation control in the milling process of the thin-walled annular part, the present application provides a thin-walled annular part processing elastic deformation active control device and method. The present application builds a clamping module to realize the positioning and clamping of the thin-walled annular part; designs an active support module to apply controllable support force to the inner surface of the thin-walled annular part through multiple independent and support force controllable support devices, providing a basis for the active control of the elastic deformation in the milling process; and combines the deformation monitoring module and the regulation and control module to realize the active control of the elastic deformation in the processing of the thin-walled annular part for the first time, solving the elastic deformation problem caused by the introduction of the milling force in the processing of such thin-walled annular parts.

The utility model discloses an aviation engine casing shell block cover's anti -deformation processing special fixture belongs to aviation engine spare and part manufacturing technical field. The fixture includes the clamping body (1), the compression screw cap (2), the support (3) and the open sleeve (4). The clamping body (1) is equipped with the hole matching with the part outer circle, adopts H7 / g6 cooperation to realize accurate positioning, the compression screw cap (2) is connected with the clamping body thread, is used for the axial compression spare, the support (3) is fixed on the clamping body top through the bolt, and its support sleeve is adopted gap cooperation with the part high outer cylinder, provides radial support, the open sleeve (4) is the split type structure, is covered in high outer cylinder and is locked through the bolt and plays the supplementary support. The fixture through multiple anti -deformation design has solved 7075 aluminum alloy thin -walled spare processing deformation problem, has guaranteed high outer cylinder upper through -hole axis relative to the base outer circle axis position degree tolerance out -of -tolerance problem, makes the part qualified rate from less than 30% to improve to 95% above.

The invention discloses a control method for improving the forming deformation of a plate-shaped sizing material, which comprises the following steps of: 1, performing shrinkage deformation simulation through mold flow analysis software based on product 3D (three-dimensional) data to obtain product deformation distribution data; 2, according to the product deformation distribution data obtained in the step 1, reverse pre-deformation compensation design is conducted on a mold cavity; 3, at least three glue inlets are formed in the top of the mold, the middle glue inlet corresponds to the middle section area of the top of the mold cavity, and the side glue inlets in the two sides correspond to the left section area and the right section area of the top of the mold cavity respectively; and 4, during injection molding, the opening and closing sequence of the pouring gate is controlled according to the following time sequence: in the first stage, the middle glue inlet is independently opened for glue injection, and the duration is T1; in the second stage, the side edge glue inlets in the two sides are opened, the side edge glue inlets and the middle glue inlet are made to conduct glue feeding synchronously so that residual glue injection can be completed jointly, and the synchronous glue feeding duration is T2; therefore, the deformation problem of the platy rubber material during injection molding is effectively improved.

The utility model discloses a kind of metal cabinet side panels with anti-deformation reinforcement belongs to metal cabinet side panel technical field, and its technical scheme main points include inner frame, concave frame and front frame, the front frame is located in the front side of inner frame, the concave frame is installed in the back of inner frame, the inside of the concave frame is fixedly connected with inner rib, the front side of the inner frame and the back of the front frame are all set with cooperation groove, filling capsule is clamped between two cooperation grooves, through multilayer structure design, solve the deformation and impact influence problem of existing metal cabinet side panel, it is filled with polyurethane foam by riveting structure and inner rib of inner frame and concave frame and enhances rigidity, deformation problem under long-term bearing and installation stress is responded, guarantee structure stability and aesthetic appearance;Utilize filling capsule and viscous oil between front frame and inner frame, provide elastic buffer for external collision, reduce the direct damage of impact to side panel and the influence to internal article, avoid article to dump.

To improve practicality in a shape-stabilized mold.SOLUTION: In a normal copper mold to be used for continuous casting of steel, thermal deformation due to thermal expansion occurs with an increase in the number of uses, thereby hindering stability of quality and operation. A novel graphite mold solves the problem of expansion and deformation, but is practically difficult to use in operation due to its fragility. In the present invention, an upper part of the mold where deformation occurs is made of graphite to which prestress is introduced, and a lower part of the mold where scratches, wear, and impacts become problems is formed of a heat-resistant and wear-resistant metal instead of copper. For inevitable damage generated in the graphite part during discharge of a top portion of a slab remaining in the mold due to a casting accident, a mechanism is incorporated to immediately retreat the mold upward at the time of accident occurrence, and separate the mold from the slab, thereby improving durability of the mold.SELECTED DRAWING: Figure 1

The application provides a thin-wall special-shaped workpiece correcting device and a correcting method. The thin-wall special-shaped workpiece correcting device comprises a clamping plate correcting device. The clamping plate correcting device is composed of a first steel mold clamping plate and a second steel mold clamping plate. A heating correcting gap is formed between the first steel mold clamping plate and the second steel mold clamping plate. A clamping adjusting assembly is arranged between the first steel mold clamping plate and the second steel mold clamping plate. In the application, the internal stress of the thin-wall special-shaped workpiece is released through low-temperature heating, and the heating and fastening cycle mode is adopted to effectively solve the deformation problem. In addition, the correcting method in the application can make the thin-wall special-shaped workpiece reach the delivery standard, avoid post-deformation, and effectively improve the production quality.

The invention relates to the technical field of thin-wall part machining, and discloses an anti-deformation machining method for a special-shaped complex thin-wall workpiece. An ejection base is included, a special-shaped workpiece is welded to the bottom of the ejection base, a special-shaped mold is arranged in the special-shaped workpiece, and a positioning plate is detachably installed at the top of the special-shaped mold through a bolt; ejection screw holes are formed in the two sides of the surface of the positioning plate, a runner groove is formed in the outer wall of the special-shaped workpiece, and a pouring hole is formed in the inner bottom wall of the special-shaped mold. By designing the uniformly distributed ejection screw holes, the ejection screws are in threaded connection in the ejection screw holes, and the ejection screws are rotated to move downwards, so that the special-shaped mold and the special-shaped workpiece can be separated, uniform stress is ensured, and product deformation in the removal process is prevented. The problem of machining deformation of the 3mm-level ultrathin-wall special-shaped complex curved surface part is solved, the overall deformation of the casting is controlled within + / -0.3 mm, and the machining precision of the casting is ensured.

The present application relates to a kind of methods for preventing wing skeleton and skin from welding deformation, belong to welding technical field, solve the problem that existing laser welding technology is used for welding wing skeleton and skin when easily welding deformation.A kind of methods for preventing wing skeleton and skin from welding deformation, comprising the following steps: S1, design the tooling fixture for welding wing skeleton and wing skeleton and skin;S2, the parts of the wing skeleton to be welded are assembled on substrate;S3, after assembly, chord plane measurement is carried out;S4, using laser welding method, the joint of wing skeleton is welded;S5, the chord plane measurement of wing skeleton obtained by welding is carried out, and is corrected.The present application effectively controls and reduces the deformation problem of wing skeleton and skin in the process of laser welding by optimizing tooling fixture, assembly procedure, welding sequence, chord plane measurement and correction, and welding deformation can be controlled below ±0.5%.

This invention belongs to the field of lever machining technology, specifically relating to a machining method for a high-precision, weakly rigid lever assembly. The invention completes the machining of the weakly rigid lever assembly through six steps: heat treatment of the raw materials of the lever and shaft, preparation of a process table, individual machining of the lever and shaft, assembly of the lever and shaft, fine finishing of the reference surface, machining of the assembly, and removal of the process table. This invention not only significantly reduces the precision and difficulty of individual part machining and improves measurement accuracy, but also achieves economical machining precision, reducing machining costs. This invention effectively solves the deformation problem of parts during machining, ensuring stable machining quality and improving the pass rate and machining efficiency. This invention effectively solves the deformation problem of parts caused by poor rigidity or unbalanced force, meeting the requirements of geometric tolerances. This invention is applicable to the machining of other high-precision, weakly rigid assemblies and has a wide range of applications.

The invention relates to the technical field of precision machining machine tools, and discloses a milling mechanism and method for a composite lathe, and the milling mechanism comprises a milling execution module for milling a workpiece, a workpiece fixing module for clamping and driving the workpiece, an auxiliary supporting module and a control module; the auxiliary supporting module is used for providing dynamic supporting for a workpiece in the milling process and comprises a supporting assembly, a displacement driving unit, a detection unit and a position calibration unit. The supporting assembly is used for making contact with the workpiece surface. The displacement driving unit is connected with the supporting assembly and used for driving the supporting assembly to move in the axial direction of the workpiece. By arranging the auxiliary supporting module, aiming at the problem of static deflection deformation easily caused by insufficient rigidity of the slender shaft, the auxiliary supporting module directly compensates bending of a workpiece in the machining process by tracking a milling point in real time and providing accurate radial supporting force, the form and location tolerances such as straightness and cylindricity of the workpiece are ensured, and the machining precision of the slender shaft is improved. And the machining geometric accuracy is improved.

The utility model discloses a thin plate buckling type auxiliary frame welding anti-deformation tool which comprises positioning pins arranged on mounting holes in the two sides of a lower thin plate and anti-deformation mechanisms symmetrically arranged at the inner arc face welding position between an upper thin plate and the lower thin plate. The reversible deformation mechanism comprises a first hinge mounting seat, a second hinge mounting seat, a multi-head hinge structure, a hinge control cylinder, a sliding table and a sliding block, the sliding table can be horizontally and slidably mounted on the sliding block, the hinge control cylinder is arranged between the sliding table and the first hinge mounting seat, and the fixed end of the hinge control cylinder is hinged to the second hinge mounting seat; the output end of the hinge control air cylinder is hinged to the first hinge installation base and the rear end of the sliding table through a multi-head hinge structure. The sliding table is provided with at least two L-shaped blocks, and the front ends of the L-shaped blocks are provided with circular pressing heads used for abutting against the flanging position of the inner arc face of the lower thin plate. The device is simpler in structure, effectively solves the problem of welding deformation of the thin plate, and improves the welding quality and efficiency.

The utility model relates to the field of fasteners, and discloses a flat-head semi-hexagonal blind hole gluing pull rivet nut which comprises a nut body, a deformable part is arranged at the top end of the nut body, a nut head is arranged at the top end of the deformable part, a hexagonal hole is formed in the nut head, and the hexagonal hole is connected with the nut body. A progressive expansion groove is formed in the nut body, a wear-resistant coating is arranged in the progressive expansion groove, and a first positioning piece is fixedly connected to the outer portion of the joint of the deformable part and the nut body. According to the flat-head semi-hexagonal blind hole gluing pull rivet nut, the gluing quality can be improved and the gluing friction force can be enhanced through the gluing grooves and the anti-falling convex grooves which are evenly formed in the gluing part, when the nut body is installed, the deformable part deforms, the first positioning piece and the second positioning piece are both attached to a plate after deformation, and therefore the gluing quality is improved. The first positioning piece and the second positioning piece can enhance the stability of the joint, the structure achieves the function of being not prone to degumming and deformation, and the problem that degumming and deformation are prone to occurring is solved.

The invention provides a machining method of a high-hardness thin plate type dense hole system part, which comprises the following steps: S1, roughly machining a workpiece, reserving inner and outer circle margins and hole system margins, and releasing residual internal stress; s2, the hole system is subjected to semi-finish machining through low-speed wire cutting, the inner circle of the workpiece is trimmed and cut, all hole sites in the hole system are corrected to be within a preset precision range, and finish reaming allowance is reserved; s3, a tool is used for completely surrounding and fixing the workpiece, a reamer is used for conducting finish reaming machining on the hole system under the constant-temperature cooling condition, a recasting area and a heat affected area generated by low-speed wire cutting are removed, and the final hole diameter and position precision requirements are met; and S4, the tool is dismantled, and the high-hardness thin plate type dense-hole-series part is obtained. A combined machining mode is adopted, various deformation problems are effectively solved, a general technology for effectively controlling position precision is provided for high-hardness thin plate type dense hole series parts, and technical difficulties are overcome for enterprises.

This invention relates to the field of rolling bearing design and life assessment technology, specifically a method for calculating the life of an elliptical raceway bearing, comprising the following steps: S100, measured multi-point profile: obtaining a set of discrete points i of the measured profile of the raceway surface of the elliptical deformed raceway of the bearing to be assessed; S200, least squares fitting to an ideal ellipse: performing ellipse fitting on the discrete point set i to obtain an ideal ellipse, and determining the length of the major axis 2a and the length of the minor axis 2b of the ideal ellipse; S300, extraction of three points: extracting one endpoint A of the minor axis and two endpoints C1 and C2 of the major axis on the ideal ellipse; This transforms the complex geometric deformation problem into a change in the standard parameter of the bearing's internal clearance, thereby realizing the quantitative calculation of the life of the elliptical raceway bearing.

To provide a mechanism and a method for cutting a hollow roll bar object, which can solve the occurrence of caving / deformation of a hole edge in a cutting step.SOLUTION: A material input side insertion shaft component and a material discharge side insertion shaft component are contained. When cutting by a cutter, a right expandable head of the material input side insertion shaft component and a left expandable head of the material discharge side insertion shaft component are respectively inserted into a hollow hole of a hollow roll bar object from a material input side and a material discharge side, and the outer diameters of the right and left expandable heads respectively support the hollow hole of the hollow roll bar object. A rewinding deformation correction step is included, and a problem of rewinding deformation occurring at the hole edge is solved during cutting work. A cutter pressure releasing mechanism is further included and, during the cutting by the cutter, resilience of stored energy compressed in advance is released to the hollow roll bar object, and appropriate elastic pressure can be released on the basis of a cutter cutting depth.SELECTED DRAWING: Figure 3

The utility model relates to the field of injection products, and discloses a product deformation correcting mechanism which comprises an operation table, a correcting assembly is installed on the front side of the top of the operation table and comprises two first sliding plates and two second return correcting blocks, and the bottoms of the first sliding plates are slidably connected to the top of the operation table; first return correction blocks are fixedly connected to the tops of the first sliding plates, second sliding plates are fixedly connected to the rear ends of the first return correction blocks, an alarm is fixedly connected to the inner sides of the first sliding plates, and the two second return correction blocks are fixedly connected to the left side and the right side of the top of the operation table respectively. The top of the workpiece is fixed to the position fixing block, the bottom of the workpiece is fixed to the second sliding plate, the second return correcting block is matched to drive the first sliding plate to move left and right, the first return correcting block drives the second sliding plate to move front and back, and then the position positioning block pushes the workpiece forwards to bend the workpiece, so that the workpiece is corrected, and product quality is prevented from being affected by deformation. And the problem of workpiece deformation which cannot be solved by the die is solved.

The application relates to the technical field of model airplane part machining, and discloses a chamfering device for nut machining of a model airplane engine, which comprises a transfer module, a groove is arranged at the bottom center position of the transfer module, placing grooves are arranged on the left and right sides in the groove, and two clamping grooves are arranged on the left side of the transfer module; a clamping mechanism comprises a plurality of limiting strips, a plurality of clamping columns are arranged in the limiting strips in a sliding mode, springs are arranged on the top ends of the clamping columns, and corresponding plates are arranged between the top ends of the springs. Through the adaptive clamping technical scheme that the clamping mechanism is in sliding cooperation with the transfer module and the clamping columns are sleeved with the springs, the technical effect that different size model airplane nuts can be stably clamped without damaging the nuts is achieved, the problems that the fixture needs to be disassembled, the tool angle needs to be adjusted and the operation is complicated during the model airplane nut replacement are solved, and the clamping deformation problem caused by the fixed fixture to the thin-wall characteristics of the model airplane nut is avoided.

The utility model relates to the technical field of elevator sills, in particular to an anti-deformation elevator sill which comprises a sill body, a containing groove A, a containing groove B, a protection box and a sewage draining exit, and an anti-deformation block A and an anti-deformation block B are contained in the containing groove A and the containing groove B respectively; a small air pump is fixed in the protection box through bolts, and an air blowing cover is clamped and fixed to the bottom of one side of the inner wall of the sill body through a reserved groove; the anti-deformation block A and the anti-deformation block B can be conveniently and respectively stored through the storage groove A and the storage groove B, and the anti-deformation block A and the anti-deformation block B are both made of tungsten steel and are high-strength materials, so that the problem that parts which are frequently rubbed with an elevator are prone to deformation is solved.

The present invention discloses a quenching shape control method for the outer ring of a double-row tapered bearing, which is realized by using a press bed with a quenching shape control die. The press bed includes an upper die, a lower die, a base, a guide seat, a disc spring, a plurality of demoulding limit bolts and a press; the shape control method includes: Step 1, select the thickness and height of the disc spring; Step 2, first calculate the theoretical downward pressing height H1 of the upper die in the cooling state, and then calculate the actual downward pressing height H1' of the upper die in the cooling state; Step 3, first put the heated outer ring on the lower die of the die, and then the press drives the upper die to press down until the top surface of the upper die reaches the top surface of the base at H1'; Step 4, fill the quenching shape control die with coolant to cool and quench the outer ring; Step 5, after cooling is completed, the press applies a downward pressure to the upper die again, so that a plurality of demoulding limit bolts jack up the outer ring to realize the separation of the outer ring and the quenching shape control die. The present invention effectively solves the deformation problem of the outer ring during the quenching and cooling process.