CN109142007B - High-efficiency model test standard test piece processing mold and application method thereof - Google Patents
High-efficiency model test standard test piece processing mold and application method thereof Download PDFInfo
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- CN109142007B CN109142007B CN201811334585.5A CN201811334585A CN109142007B CN 109142007 B CN109142007 B CN 109142007B CN 201811334585 A CN201811334585 A CN 201811334585A CN 109142007 B CN109142007 B CN 109142007B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
Abstract
The invention discloses a high-efficiency model test standard test piece processing die and a use method thereof, wherein the high-efficiency model test standard test piece processing die consists of a pressure-bearing die-building structure, a constraint die-fixing structure and a component force die-pressing structure; the pressure-bearing die-building structure consists of a die, a movable clamping plate, a base and a lifting disc, wherein the large clamping plate and the small clamping plate of the movable clamping plate are respectively embedded into the die to be in fit connection with the large sector-shaped groove and the small sector-shaped groove in the base, and the hooks of the lifting disc can buckle the nose ring on the upper end face of the large clamping plate; the restraining die fixing structure consists of a groove cylinder and a bolt, the die is sleeved in a groove of the groove cylinder, and the die is fixed by screwing the bolt; the component force compression mold structure consists of a force bearing beam, a universal ball support groove, a universal ball and a pressing pad column, wherein the force bearing beam and the pressing pad column are connected through a universal ball hinged in the universal ball support groove; the invention adopts the non-integral die, effectively reduces the adhesion force between the test piece and the die, is convenient to move and take, can simultaneously press four test pieces at one time, greatly improves the manufacturing efficiency of the test pieces, and is convenient to disassemble the die.
Description
Technical Field
The invention relates to a processing die for manufacturing a test piece for a similar simulation test, in particular to a processing die for a standard test piece for a high-efficiency model test.
Background
At present, the engineering field of rock mechanics rapidly develops, the construction conditions facing large underground structures, open-pit mining and roadway development under difficult conditions are more and more complex and variable, and a greater challenge is presented to engineering safety, so that in order to master deformation characteristics of engineering rock, simulation research on mechanical characteristics such as stability and strength of the rock and mechanical behaviors such as deformation is necessary.
The similarity simulation test is a laboratory research method based on a similarity principle, has the advantages of low cost, short period, high simulation and the like, is widely applied to the fields of mining, geology, geotechnical engineering and the like, and becomes a powerful scientific research means for researching the problem of underground engineering. The model test is based on the similar materials, the mechanical properties of the similar materials can truly reflect the stress deformation characteristics of the test prototype, and the model test similarity law must be met, so that the simulated data can be truly effective, and the selection of the model test similar materials determines the success or failure of the test. However, in nature, the mechanical property of a material is difficult to be in line with that of an ideal model test material converted by the similarity ratio, and the material which is in line with the similarity ratio of the model test is obtained by blending and mixing various materials. The research of the mixed similar materials is to prepare standard mechanical test pieces by hundreds to thousands of groups of proportion experiments, and research on the influence rule of the material proportion change on the mechanical properties of the mixed similar materials, thereby developing and selecting the mixed similar materials with corresponding mechanical properties.
The manufacturing of the standard test piece is a key step in the material proportioning experiment process, the precision and the efficiency of manufacturing the test piece greatly influence the whole experiment process, the test pieces in the same batch are required to be uniformly pressed according to the experiment requirement, the dimensional precision of the test piece is ensured, and the existing test piece processing and manufacturing mould has the defects of low efficiency, complex disassembly and insufficient test piece manufacturing precision in the actual use process, so that the high-efficiency model test standard test piece processing mould and the use method thereof are very necessary.
Before the invention, the invention of application number 2015104914957 discloses a similar simulation material forming die assembly and a rapid forming method of a standard test piece thereof, wherein the die assembly comprises a base, a large clamping sleeve, an inner die, a small clamping sleeve and a round pressure-bearing cover plate with a cylindrical bulge at the center part, the bottom of the inner die is in interference fit and plug-in connection with a bottom plate, the large clamping sleeve and the small clamping sleeve are of a loop type structure, the large clamping sleeve and the small clamping sleeve are directly sleeved on the outer wall of the inner die which consists of a left part and a right part which are completely identical, and the device effectively transmits the pressure of a press machine to similar materials in a cavity of the inner die through the round pressure-bearing cover plate to press the test piece. When the die is disassembled, the periphery of the outer edge of the base is knocked by a hand hammer until the base is separated from the internal die, the molded test piece is taken out, but the internal die is of a two-part split combined structure, the contact area with the test piece is large, if the strength of the adhesive used for the test piece is large, the test piece and the die are easy to adhere, and the die is difficult to disassemble; because the strength of the similar material test piece is lower, the test piece is easy to damage when the internal mold is disassembled and knocked and vibrated, and two persons are required to cooperate when the mold is disassembled, one person is difficult to complete the work of disassembling the mold.
The invention has disclosed a self-discharging type analog simulation test piece processing die and its operation method of application number 201711210306X, including base, cylinder block, restraint sleeve, top gasket, bottom gasket and pressure-bearing steel column, this device makes the restraint sleeve move upwards through rotating the rotatory handle on the restraint sleeve, remove its restraint to the cylinder block gradually, meanwhile, the spring lamella in the gasket placed in the cylinder block is sprung open under the thrust of the spring, impels the cylinder block to separate leftwards and rightwards automatically. If the adhesive strength of the adhesive used by similar materials is high, the die and the test piece are tightly adhered together, and the elastic valve cannot be used for ejecting the cylinder body, so that the die stripping is failed; in addition, when similar materials are manually filled, the materials can be thrown to fall into the sliding groove rail, so that the pushing of the cylinder body is blocked, and the complexity of the demolding operation is increased; the die can only press a single test piece, so that the test piece pressing efficiency is low, and the manufacturing period is long.
Aiming at the defects of the invention, the invention provides the test piece processing die which is quick and convenient to disassemble and assemble and can carry out batch test piece compression molding.
Disclosure of Invention
Aiming at the defects of the existing model test piece processing mold, the invention provides a high-efficiency model test standard test piece processing mold.
The invention relates to a high-efficiency model test standard test piece processing die which is constructed by the following steps: the die structure is characterized by comprising a die, a movable clamping plate, a base and a lifting disc, wherein the constraint die structure comprises a groove cylinder and a bolt, and the component force die structure comprises a bearing beam, a universal ball support groove, a universal ball and a pressing pad column.
The die adopts a stainless steel cuboid with the height of 150-160 mm, the length and the width of 100mm, a cylindrical opening with the radius of 25mm is arranged in the center, the die is of a four-split structure and consists of four identical partial modules, the inner wall surface of the module is provided with a large sector groove which takes the center of a round hole as the center of the circle to form an included angle of 60 degrees, extends outwards for 6mm, has the inner arc length of 10mm and the outer arc length of 20mm, and a movable baffle is embedded in the large sector groove; the movable clamping plate consists of a large clamping plate, a small clamping plate and a connecting plate, wherein the size of the large clamping plate body is consistent with that of a large sector groove, the welding span of the upper end surface of the large clamping plate body is 10mm, the height of the large clamping plate body is 5mm, the stainless steel arc-shaped nose ring is welded on the lower end surface of the large clamping plate body, the sector connecting plate is connected with the small clamping plate, the small clamping plate is consistent with the clamping plate in form, the height of the small clamping plate body is 10mm, and the small clamping plate body is embedded into the small sector groove of the base; the base is made of a stainless steel cylinder with the height of 20mm and the radius of 25mm, four embedded small fan-shaped grooves distributed in a cross shape are arranged on the lower disc surface, the groove depth is 10mm, the inner arc distance of the small fan-shaped grooves is 12mm from the circle center, the arc length is 20mm, the outer arc length is 30mm, the distance between two arcs is 6mm, and the outer arc distance is 7mm from the outer edge of the base; the lower bottom surface of the lifting disk is hinged with four semicircular stainless steel hooks distributed in a cross shape, each hook hooks a corresponding arc-shaped nose ring, and the center of the upper bottom surface is hinged with a hand-held ring.
The groove cylinder is a stainless steel cuboid with the height of 150-160 mm and the length and width of 300mm, four non-through square grooves with the side length of 110mm and the depth of 130-140 mm are formed in the cylinder, the distance between every two adjacent square grooves is 60mm, the thickness of the cylinder wall is 10mm, eight bolt holes with the radius slightly larger than 5mm are formed in total, bolts can conveniently pass through the groove cylinder, and each square groove is provided with two bolt holes with the hole centers corresponding to the groove centers; the bolt adopts the material to be 35CrMoA,3A level external screw thread, 3B level internal screw thread, the interior hexagonal high strength bolt of head knurl, bolt radius is 5mm, twists the slip that moves two bolt both way constraint moulds of quadrature, and then fixed mould provides the side direction restraining force for similar material standard test piece shaping, prevents simultaneously that the mould from gnawing and biting in the test piece pressing process, reduces mould life.
The bearing beams are high-strength steel cuboid beams with the length of 160mm, the width of 54mm and the height of 30mm, two transverse bearing beams and one longitudinal bearing beam with the interval of 110mm are distributed in an I shape, the transverse bearing beams and the longitudinal bearing beams are hinged with the universal ball support grooves through universal balls, the two orthogonal side beam surfaces of the bearing beams are provided with level bubbles, and the level of the bearing beams can be adjusted without inclination; the universal ball support groove is a hemispherical groove with the radius of 25mm and the depth of 28mm, is formed in the upper bottom surface of the pressure pad column and the central part of the upper end surface of the bearing beam, and is hinged with the universal ball, so that the bearing beam and the pressure pad column can be adjusted to be horizontal without inclination; the universal ball is a steel hemisphere with the radius of 25mm and the depth of 30mm, the upper plane is smooth and straight, the pressure exerted by the pressure head of the testing machine is born, the lower part of the universal ball is hinged with a universal ball support groove on the longitudinal force bearing beam, and the pressure is transmitted to the force bearing beam; the pressure pad post be high 50mm, the bottom surface radius is 25 mm's high strength stainless steel cylinder, the lower bottom surface is smooth straight, contact the test piece in the compacting tool set, the universal ball support recess is seted up to the upper bottom surface, articulated horizontal load beam end below's universal ball, mark the scale table on the side of pressure pad post, the range is 50mm, the mould mouth corresponds the difference of the scale value of pressure pad post with the test piece after the test piece is suppressed and the mould mouth corresponds the scale value of pressure pad post when the test piece is suppressed before the pressure pad post contacts the test piece, this difference is test piece compression height.
The invention discloses a use method of a high-efficiency model test standard test piece processing die, which specifically comprises the following steps:
(1) Smearing a release agent on the inner sides of large clamping plates of the mold and the movable clamping plates, embedding the small clamping plates into small sector grooves of the base, combining the small clamping plates together, sleeving four modules into the corresponding large clamping plates from the upper parts of the large clamping plates respectively, tightly attaching the large sector grooves of the modules and the large clamping plates to form a whole, putting the mold into the inner sides of square grooves in a mold cylinder, screwing two bolts through a wrench to fasten the mold until the mold is tightly closed, and repeating the steps to complete the assembly of the four molds;
(2) Pouring the weighed analog simulation test materials into a mold, carrying out layered tamping, and wiping off a small amount of materials adhered on the inner wall of the mold to finish material filling;
(3) Placing a die cylinder provided with a die on an electrohydraulic servo hydraulic testing machine, aligning the center of the die cylinder with a pressure head of the testing machine, placing a bearing beam above the die, respectively aligning four pressure pad columns with a die port below, enabling the lower cylindrical surface of the bearing beam to be horizontal through adjustment of universal balls, then moving the bearing beam downwards until the pressure pad columns are in contact with a test piece, sequentially adjusting the transverse and longitudinal bearing beams to keep the horizontal according to the level bubbles, finally aligning the pressure head of the testing machine with the universal balls on the longitudinal bearing beam, and compacting materials according to a test scheme;
(4) After the test piece is pressed and formed, a pressure head of the testing machine is lifted, a bearing beam is lifted to separate a pressing pad column from the test piece, a die cylinder is moved away from a test bed and placed on a flat ground, then all bolts are loosened sequentially through a wrench, a hook of a lifting disc is sleeved into a nose ring on a movable clamping plate and is pulled upwards vertically through a portable ring until the test piece is completely separated from a die, then the test piece wrapped by the movable clamping plate and a base is placed on the ground, the hook is loosened to take down the lifting disc, the movable clamping plate is moved downwards to enable a small clamping plate to be separated from a small sector groove of the base, finally the test piece is separated from the base and taken out, and the test piece is dried for later use.
The high-efficiency model test standard test piece processing die has the advantages that:
(1) The mold is a hollow cylindrical non-integral cuboid and is formed by splicing four identical modules, which is different from the structure of the existing mold, so that the contact area between the modules and the test piece is reduced, and the damage caused by the adhesion between the test piece and the inner wall surface of the mold in the mold removing process is further effectively avoided;
(2) The die cylinder is provided with four square grooves for placing the die, and four test pieces can be pressed simultaneously through the testing machine at one time, so that the defect that the conventional die can only press the test pieces singly is overcome, and the manufacturing and processing efficiency of the test pieces is greatly improved;
(3) The bearing beam is attached with level bubbles, the longitudinal and transverse bearing beams and the pressing pad column can be adjusted to be horizontal by matching with the grooves of the calibration ball and the universal ball support, the die is prevented from being damaged by biting and extrusion of the cushion column in the pressing process, the side surface of the pressing pad column is marked with a scale, and the compression height of the test piece can be directly obtained after the test piece is pressed;
(4) The movable clamping plate is in fit connection with the small fan-shaped groove of the base through the small clamping plate, can be freely disassembled, and is lifted and pulled out from the die by the lifting disc, and can be separated from the base by vertically moving the movable clamping plate downwards, so that the operation is convenient;
(5) The transverse and longitudinal bearing beams of the bearing beam are distributed in an I shape, and the pressure of the pressure head of the tester can be equally transferred to the pressure pad column below, so that the pressure head is uniformly applied to a test piece in the die.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic structural view of a mold according to the present invention.
Fig. 3 is a schematic structural view of a mold without a movable clamping plate in the invention.
Fig. 4 is a schematic diagram of the structure of the module in the present invention.
Fig. 5 is a schematic structural diagram of a movable clamping plate connected with a base in the invention.
Fig. 6 is a schematic structural diagram of the movable clamping plate in the invention.
Fig. 7 is a schematic structural view of a base in the present invention.
Fig. 8 is a top view of a base in the present invention.
Fig. 9 is a schematic structural view of a pulling tray according to the present invention.
Fig. 10 is a top view of the pulling tray of the present invention.
Fig. 11 is a schematic structural view of a mold cylinder including a mold according to the present invention.
Fig. 12 is a schematic view of the structure of a die cylinder in the present invention.
Fig. 13 is a schematic diagram of the overall structure of the component force structure in the present invention.
Fig. 14 is a cross-sectional view of a load beam of the present invention attached to a ball.
FIG. 15 is a cross-sectional view of a gimbal ball mounting recess according to the present invention.
FIG. 16 is a cross-sectional view of a press pad post of the present invention without a ball attached thereto.
FIG. 17 is a front view of a pressure pad post of the present invention attached to a ball.
Legend description: 1-a die; 2-a mold cylinder; 3-a base; 4-a movable clamping plate; 5-nose ring; 6-a bolt; 7-a load beam; 8-a universal ball support groove; 9-a universal ball; 10-pressing pad columns; 11-leveling the bubbles; 12-a scale; 13-a pulling tray; 14-square grooves; 15-small fan-shaped grooves; 101-a module; 102-large sector grooves; 401-large card board; 402-small card; 403-connecting plates; 1301-hanging hook; 1302-hand ring.
Detailed Description
The invention provides a high-efficiency model test standard test piece processing die, which is used for making the purposes, technical schemes and effects of the invention clearer and more definite, and the detailed description of the specific embodiments of the invention is given below with reference to the accompanying drawings.
As shown in fig. 1-15, the high-efficiency model test standard test piece processing mold mainly comprises a pressure-bearing mold-building structure, a constraint mold-fixing structure and a component force compression mold structure, and is characterized in that the pressure-bearing mold-building structure comprises a mold 1, a movable clamping plate 4, a base 3 and a lifting disk 13, the constraint mold-fixing structure comprises a groove cylinder 2 and a bolt 6, and the component force compression mold structure comprises a force bearing beam 7, a universal ball support groove 8, a universal ball 9 and a pressing pad column 10.
As shown in fig. 2-4, the die 1 is a stainless steel cuboid with a height of 150-160 mm, a length and a width of 100mm, a cylindrical opening with a radius of 25mm is arranged in the center, and the die is of a four-split structure and consists of four identical part modules 101, an included angle of 60 degrees is formed by taking the center of a round hole as the center of the round hole, the inner wall surface of the module 101 extends outwards for 6mm, the inner arc length is 10mm, the outer arc length is 20mm, and a large sector groove 102 is embedded with a movable baffle 4; as shown in fig. 5-6, the movable clamping plate 4 is composed of a large clamping plate 401, a small clamping plate 402 and a connecting plate 403, the size of the plate body of the large clamping plate 401 is consistent with that of the large sector-shaped groove 102, the welding span of the upper end face of the large clamping plate 401 is 10mm, the height of the stainless steel arc-shaped nose ring 5 is 5mm, the lower end face of the small clamping plate is welded with the sector-shaped connecting plate 403 and is connected with the small clamping plate 402, the form of the small clamping plate 402 is consistent with that of the large clamping plate 401, the height of the small clamping plate 402 is 10mm, and the small clamping plate is embedded into the small sector-shaped groove 15 of the base 3; as shown in fig. 7-8, the base 3 is made of a stainless steel cylinder with the height of 20mm and the radius of 25mm, the lower disc surface is provided with four embedded small fan-shaped grooves 15 distributed in a cross shape, the groove depth is 10mm, the inner arc distance of the small fan-shaped grooves 15 is 12mm from the circle center, the arc length is 20mm, the outer arc length is 30mm, the distance between two arcs is 6mm, and the outer arc distance is 7mm from the outer edge of the base; as shown in fig. 9 to 10, the lower bottom surface of the pulling disc 13 is hinged with four semicircular stainless steel hooks 1301 distributed in a cross shape, each hook 1301 hooks a corresponding arc nose ring 5, and the center of the upper bottom surface is hinged with a handle 1302.
As shown in fig. 11-12, the tank cylinder 2 is a stainless steel cuboid with the height of 150-160 mm and the length and width of 300mm, four non-through square grooves 14 with the side length of 110mm and the depth of 130-140 mm are formed in the cylinder, the distance between adjacent square grooves 14 is 60mm, eight bolt holes with the radius slightly larger than 5mm are formed in the cylinder wall, so that bolts 6 can pass through conveniently, and each square groove 14 is provided with two bolt holes with the hole centers corresponding to the tank centers; the bolt 6 is made of 35CrMoA, 3A-level external threads and 3B-level internal threads, the radius of the bolt 6 is 5mm, two orthogonal bolts 6 are screwed to bi-directionally restrain sliding of the die 1, the die 1 is further fixed, lateral restraining force is provided for molding a standard test piece made of similar materials, biting of the die 1 in the test piece pressing process is prevented, and the service life of the die 1 is shortened.
As shown in fig. 13-15, the bearing beams 7 are high-strength steel cuboid beams with the length of 160mm, the width of 54mm and the height of 30mm, two transverse bearing beams 7 and one longitudinal bearing beam 7 with the interval of 110mm are distributed in an i shape, the transverse bearing beams 7 and the longitudinal bearing beams 7 are hinged with the universal ball support grooves 8 through universal balls 9, the two orthogonal side beam surfaces of the bearing beams 7 are attached with horizontal bubbles 11, and the horizontal non-tilting of the bearing beams 7 can be adjusted; the universal ball support groove 8 is a hemispherical groove with the radius of 25mm and the depth of 28mm, is formed in the upper bottom surface of the pressure pad column 10 and the central part of the upper end surface of the bearing beam 7, is hinged with the universal ball 9, and can adjust the level of the bearing beam 7 and the pressure pad column 10 without inclination; the universal ball 9 is a steel hemisphere with the radius of 25mm and the depth of 30mm, the upper plane is smooth and straight, the pressure exerted by a pressure head of a testing machine is born, the lower part of the universal ball is hinged with a universal ball support groove 8 on the longitudinal force-bearing beam 7, and the pressure is transmitted to the longitudinal force-bearing beam 7; as shown in fig. 16-17, the pressure pad column 10 is a high-strength stainless steel column with a height of 50mm and a bottom radius of 25mm, the lower bottom surface is smooth and straight, the lower bottom surface contacts a test piece in the pressing mold 1, the upper bottom surface is provided with a universal ball support groove 8, the universal ball 9 below the end part of the transverse force bearing beam 7 is hinged, the side surface of the pressure pad column 10 is marked with a scale 12, the measuring range is 50mm, and the difference between the scale value of the die opening corresponding to the pressure pad column 9 after the test piece is pressed and the scale value of the die opening corresponding to the pressure pad column 9 when the pressure pad column 9 contacts the test piece before the test piece is pressed is the compressed height of the test piece.
The invention discloses a use method of a high-efficiency model test standard test piece processing die, which specifically comprises the following steps:
(1) Smearing a release agent on the inner sides of large clamping plates 401 of a die 1 and a movable clamping plate 4, embedding a small clamping plate 402 into a small sector-shaped groove 14 of a base 3, merging together, sleeving four modules 101 into the corresponding large clamping plates 401 respectively from the upper parts of the large clamping plates 401, tightly attaching the large sector-shaped grooves 102 of the modules 101 and the large clamping plates 401 to form a whole, putting the die 1 into the inner sides of square grooves 14 in a die cylinder 2, screwing two bolts 6 by a spanner to fasten the die 1 until the die is tightly closed and seamless, and repeating the steps to complete the assembly of the four dies 1;
(2) Pouring the weighed analog simulation test materials into a mold, carrying out layered tamping, and wiping off a small amount of materials adhered on the inner wall of the mold to finish material filling;
(3) Placing a die cylinder 2 provided with a die 1 on an electrohydraulic servo hydraulic testing machine, aligning the center part of the die cylinder 2 with a pressure head of the testing machine, placing a bearing beam 7 above the die 1, respectively aligning four pressure pad columns 10 with a die port below, adjusting the level of a lower cylindrical surface of the bearing beam through universal balls 9, then moving the bearing beam 7 downwards until the pressure pad columns 10 are in contact with a test piece, sequentially adjusting the transverse and longitudinal bearing beams 7 according to level bubbles 11 to keep the level, and finally aligning the pressure head of the testing machine with the universal balls 9 on the longitudinal bearing beam 7, and compacting materials according to a test scheme;
(4) After the test piece is pressed and formed, a pressure head of a testing machine is lifted, a bearing beam 7 is lifted to separate a pressure pad column 10 from the test piece, a die cylinder 2 is moved away from a test bed and placed on a flat ground, all bolts 6 are sequentially loosened through a wrench, a hook 1301 of a lifting disk 13 is sleeved into a nose ring 5 on a movable clamping plate 4 and vertically pulls the lifting disk 13 upwards through a hand ring 1302 until the test piece is completely separated from the die 1, then the test piece wrapped by the movable clamping plate 4 and a base 3 is placed on the ground, the hook 1301 is loosened to take down the lifting disk 13, the movable clamping plate 4 is moved downwards to separate a small clamping plate 402 from a small sector groove 15 of the base 3, finally the test piece is separated from the base 3, and the test piece is dried for later use.
Claims (3)
1. A high-efficiency model test standard test piece processing mold is characterized by comprising a pressure-bearing mold building structure, a constraint mold fixing structure and a component force compression mold structure; the pressure-bearing die-building structure consists of a die, a movable clamping plate, a base and a lifting disc, wherein the large clamping plate and the small clamping plate of the movable clamping plate are respectively embedded into the die to be in fit connection with the large sector-shaped groove and the small sector-shaped groove in the base, and the hooks of the lifting disc can buckle the nose ring on the upper end face of the large clamping plate; the restraining die fixing structure consists of a groove cylinder and a bolt, the die is sleeved in a groove of the groove cylinder, and the die is fixed by screwing the bolt; the component force compression mold structure consists of a force bearing beam, a universal ball support groove, a universal ball and a pressing pad column, wherein the force bearing beam and the pressing pad column are connected through a universal ball hinged in the universal ball support groove; the die is of a non-integral structure and consists of four identical modules, wherein a large sector groove is formed in the inner wall surface of each module, and a movable baffle is embedded in the large sector groove; the movable clamping plate consists of a large clamping plate, a small clamping plate and a connecting plate, wherein the size of the large clamping plate body is consistent with that of the large sector-shaped groove, the upper end face of the large clamping plate body is welded with a stainless steel arc-shaped nose ring, the lower end face of the large clamping plate body is welded with a sector-shaped connecting plate to be connected with the small clamping plate, the form of the small clamping plate is consistent with that of the clamping plate, and the small clamping plate is embedded into the small sector-shaped groove of the base; the lower disc surface of the base is provided with four embedded small fan-shaped grooves distributed in a cross shape; the lower bottom surface of the lifting disk is hinged with four semicircular stainless steel hooks distributed in a cross shape, each hook hooks a corresponding arc-shaped nose ring, and the center of the upper bottom surface is hinged with a hand-held ring; four non-through square grooves are formed in the groove cylinder, eight bolt holes with the radius slightly larger than 5mm are formed in the cylinder wall, bolts penetrate conveniently, two bolt holes corresponding to the groove centers are formed in each square groove, two orthogonal bolts are screwed to bi-directionally restrain sliding of the die, the die is further fixed, lateral restraining force is provided for molding of a standard test piece made of similar materials, biting of the die in the test piece pressing process is prevented, and service life of the die is prolonged.
2. The processing die for the standard test piece for the high-efficiency model test according to claim 1, wherein the bearing beams consist of transverse bearing beams and longitudinal bearing beams, the two transverse bearing beams and one longitudinal bearing beam are distributed in an I shape, the transverse bearing beams and the longitudinal bearing beams are hinged with the grooves of the universal ball support through universal balls, and the two orthogonal side beam surfaces of the bearing beams are provided with level bubbles, so that the level of the bearing beams can be adjusted without inclination; the universal ball support groove is a hemispherical groove and is arranged on the upper bottom surface of the pressing pad column and the central part of the upper end surface of the bearing beam, and the universal ball support groove is hinged with the universal ball, so that the bearing beam and the pressing pad column can be adjusted to be horizontal without inclination; the upper plane of the universal ball is smooth and straight, the pressure exerted by the pressure head of the testing machine is born, the lower part of the universal ball is hinged with the universal ball support groove on the longitudinal force bearing beam, and the pressure is transmitted to the force bearing beam; the lower bottom surface of the pressure pad column is smooth and straight, the pressure pad column contacts a test piece in the pressing mold, the upper bottom surface is provided with a universal ball support groove, a universal ball below the end part of the transverse force bearing beam is hinged, a scale is marked on the side surface of the pressure pad column, after the test piece is pressed, the die opening corresponds to the difference between the scale value of the pressure pad column and the scale value of the pressure pad column when the pressure pad column contacts the test piece before the test piece is pressed, and the difference is the compression height of the test piece.
3. The method for using the high-efficiency model test standard test piece processing mold according to claim 1, which is characterized by comprising the following steps:
(1) Smearing a release agent on the inner sides of large clamping plates of the mold and the movable clamping plates, embedding the small clamping plates into small sector grooves of the base, combining the small clamping plates together, sleeving four modules into the corresponding large clamping plates from the upper parts of the large clamping plates respectively, tightly attaching the large sector grooves of the modules and the large clamping plates to form a whole, putting the mold into the inner sides of square grooves in a mold cylinder, screwing two bolt-fastening molds until the molds are tightly closed and seamless, and repeating the steps to complete the assembly of the four molds;
(2) Pouring the weighed analog simulation test materials into a mold, carrying out layered tamping, and wiping off a small amount of materials adhered on the inner wall of the mold to finish material filling;
(3) Placing a die cylinder provided with a die on an electrohydraulic servo hydraulic testing machine, aligning the center of the die cylinder with a pressure head of the testing machine, placing a bearing beam above the die, respectively aligning four pressure pad columns with a die port below, enabling the lower cylindrical surface of the bearing beam to be horizontal through adjustment of universal balls, then moving the bearing beam downwards until the pressure pad columns are in contact with a test piece, sequentially adjusting the transverse and longitudinal bearing beams to keep the horizontal according to the level bubbles, aligning the pressure head of the testing machine with the universal balls on the longitudinal bearing beam, and compacting materials according to a test scheme;
(4) After the test piece is pressed and formed, a pressure head of the testing machine is lifted up longitudinally, a bearing beam is lifted up to separate a pressure pad column from the test piece, a die cylinder is moved away from a test bed and placed on a flat ground, then all bolts are loosened sequentially through a wrench, a hook of a lifting disc is sleeved into a nose ring on a movable clamping plate and is pulled upwards vertically through a portable ring until the test piece is completely separated from a die, then the test piece wrapped by the movable clamping plate and a base is placed on the ground, the hook is loosened to take down the lifting disc, the movable clamping plate is moved downwards to separate a small clamping plate from a small sector groove of the base, finally the test piece is separated from the base and taken out, and the test piece is dried for later use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811334585.5A CN109142007B (en) | 2018-11-10 | 2018-11-10 | High-efficiency model test standard test piece processing mold and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811334585.5A CN109142007B (en) | 2018-11-10 | 2018-11-10 | High-efficiency model test standard test piece processing mold and application method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN109142007A CN109142007A (en) | 2019-01-04 |
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| CN112264931B (en) * | 2020-10-23 | 2021-10-15 | 北京理工大学 | Self-adaptation type and variable test piece's of size anchor clamps of polishing |
| CN114743448B (en) * | 2022-04-29 | 2023-07-11 | 山东大学 | Model body manufacturing device and method for reserved cavity of geomechanical model test |
| CN114953125A (en) * | 2022-05-25 | 2022-08-30 | 安徽理工大学 | Six-in-one cylinder mould |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002031587A (en) * | 2000-07-14 | 2002-01-31 | Fumio Teraishi | Concrete strength testing sample piece manufacturing mold, and concrete strength testing sample piece manufacturing method |
| CN103196738A (en) * | 2013-03-20 | 2013-07-10 | 山东大学 | Device and method for accurate compression molding of test piece during similar material confecting process |
| CN103278360A (en) * | 2013-05-17 | 2013-09-04 | 山东科技大学 | Reserved chamber simulating test piece manufacturing die assembly and method used for manufacturing test piece |
| CN103674650A (en) * | 2013-12-16 | 2014-03-26 | 山东科技大学 | Standard test die for manufacturing mine paste filling material |
| CN206440521U (en) * | 2017-01-18 | 2017-08-25 | 中南大学 | One kind is used for the one-time formed experiment mould of stratiform rock sample |
| CN206926054U (en) * | 2017-03-30 | 2018-01-26 | 山东科技大学 | A kind of making mould of adjustable analog material standard specimen |
| CN107727475A (en) * | 2017-11-28 | 2018-02-23 | 山东科技大学 | Self-tipping type analog simulation tests test specimen processing mold and its operating method |
| CN108457133A (en) * | 2017-09-26 | 2018-08-28 | 苏州大学应用技术学院 | High-efficiency and energy-saving type cone slip casting device |
-
2018
- 2018-11-10 CN CN201811334585.5A patent/CN109142007B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002031587A (en) * | 2000-07-14 | 2002-01-31 | Fumio Teraishi | Concrete strength testing sample piece manufacturing mold, and concrete strength testing sample piece manufacturing method |
| CN103196738A (en) * | 2013-03-20 | 2013-07-10 | 山东大学 | Device and method for accurate compression molding of test piece during similar material confecting process |
| CN103278360A (en) * | 2013-05-17 | 2013-09-04 | 山东科技大学 | Reserved chamber simulating test piece manufacturing die assembly and method used for manufacturing test piece |
| CN103674650A (en) * | 2013-12-16 | 2014-03-26 | 山东科技大学 | Standard test die for manufacturing mine paste filling material |
| CN206440521U (en) * | 2017-01-18 | 2017-08-25 | 中南大学 | One kind is used for the one-time formed experiment mould of stratiform rock sample |
| CN206926054U (en) * | 2017-03-30 | 2018-01-26 | 山东科技大学 | A kind of making mould of adjustable analog material standard specimen |
| CN108457133A (en) * | 2017-09-26 | 2018-08-28 | 苏州大学应用技术学院 | High-efficiency and energy-saving type cone slip casting device |
| CN107727475A (en) * | 2017-11-28 | 2018-02-23 | 山东科技大学 | Self-tipping type analog simulation tests test specimen processing mold and its operating method |
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