CN213933354U - Plate thermal stretching pin structure clamp based on induction heating type thermal simulation testing machine - Google Patents
Plate thermal stretching pin structure clamp based on induction heating type thermal simulation testing machine Download PDFInfo
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- CN213933354U CN213933354U CN202022468658.9U CN202022468658U CN213933354U CN 213933354 U CN213933354 U CN 213933354U CN 202022468658 U CN202022468658 U CN 202022468658U CN 213933354 U CN213933354 U CN 213933354U
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Abstract
Panel hot stretching pinning structure anchor clamps based on induction heating formula thermal simulation testing machine includes: the body, two centre gripping pieces, two pull rods, two stationary blades. The utility model discloses anchor clamps are used for bar-shaped tensile sample's last lower extreme anchor clamps as induction heating formula thermal simulation testing machine. When the sample is loaded, the clamping pieces are pulled open to two sides through the pull rod, the two clamping pieces are reversely pushed back after the sample is placed in, the cylindrical nails on the clamping pieces on one side penetrate through the round holes at two ends of the sample and are finally inserted into the cylindrical grooves of the opposite clamping pieces, and the plate-shaped tensile sample is well fixed. The utility model provides a problem that the different thickness slab band tensile sample of centre gripping can't be stabilized to current thermal simulation machine tensile fixture, satisfy the tensile research of the board strip thermal simulation of more specifications and different test requirements.
Description
Technical Field
The utility model relates to a thermal simulation technical field, concretely relates to panel hot stretching nailing round pin structure anchor clamps based on induction heating formula thermal simulation testing machine.
Background
The thermal simulation testing machine is a device for reproducing and simulating the thermal processing process of the material, can simulate temperature, stress and strain, can research the key contents of deformation resistance, thermoplasticity, recrystallization behavior, phase change point, CCT curve measurement and the like of the material by completing a thermal compression test and a thermal tensile test by the device, and is excellent equipment for physical simulation in the field of thermal processing of the material. According to the different heating methods, the thermal simulation testing machine is divided into: induction heating and resistance heating. The induction heating type thermal simulator has the advantages that the temperature control is accurate, and a wider uniform temperature area of a sample can be ensured; the heating rate of the resistance heating type thermal simulator can be selected in a wider range, but the temperature gradient of the uniform temperature zone of the sample is obvious due to the adoption of resistance heating.
The traditional thermal simulation machine is only used for rod-shaped samples, and in recent years, a partial resistance heating type thermal simulation machine can be used for plate-shaped thermal simulation stretching, but the thickness of the samples is limited, the plate thickness is required to be less than 2mm, the preparation difficulty of the samples is greatly increased, and sufficient test information cannot be obtained. According to the prior art, if the advantage of reducing the temperature gradient of a uniform temperature zone of a sample by using induction heating is utilized, the plate-shaped thermal simulation stretching with the thickness of more than or equal to 2mm cannot be realized.
Chinese patent CN201621383417.1 discloses a Gleeble thermal simulator-based flat plate normal-temperature/hot high-speed tensile experiment fixture; chinese patent CN201120448870.7 discloses a plate stretching and clamping structure for a thermal simulator; chinese patent CN201020227042.6 discloses a plate strip hot stretching clamp on a thermal simulation machine. The plate-shaped thermal simulation tensile fixture introduced in the above patent is applied to a resistance heating type thermal simulator, and cannot achieve the purpose of reducing the temperature gradient of the heating area of the plate-shaped sample, and the thickness range of the plate-shaped sample to be tested is not described in detail.
In summary, in order to fully utilize the advantages of induction heating, expand the application of an induction heating type thermal simulator in the field of hot stretching of a plate strip, and break through the limitation on the thickness of a plate-shaped thermal simulation tensile sample, a clamp which is originally only suitable for a rod-shaped tensile sample needs to be redesigned, so that the plate-shaped thermal tensile sample is ensured to have sufficient clamping force and deformation stability in the hot stretching process, and the clamp is suitable for hot tensile tests of the plate-shaped thermal tensile samples with different thicknesses at different temperatures and strains.
Disclosure of Invention
An object of the utility model is to provide a panel thermal stretching nail round pin structure anchor clamps based on induction heating formula thermal simulation testing machine has solved the problem that the different thickness slab band tensile sample of centre gripping can't be stabilized to current thermal simulation machine tensile anchor clamps, satisfies the board strip thermal simulation tensile research of more specifications and different test requirements.
In order to achieve the above purpose, the technical scheme of the utility model is that:
panel hot stretching pinning structure anchor clamps based on induction heating formula thermal simulation testing machine, it includes:
the body is a hollow cylinder with an opening at the upper end, the inner wall of the opening end is provided with internal threads connected with the upper end and the lower end of the thermal simulator, and the center of the bottom of the body is provided with a through hole for loading and unloading a sample; the left outer side wall and the right outer side wall of the body are two planes which are parallel to each other, and the lower parts of the two side walls are symmetrically provided with a mounting through hole respectively;
the two clamping pieces are arranged in the body; the two clamping pieces are symmetrical semicircular pieces, and the middle parts of the opposite surfaces of the two clamping pieces are respectively provided with a cylindrical nail and a cylindrical groove which can be mutually embedded; steps are symmetrically arranged on two sides of the top surface of the clamping sheet;
the two pull rods respectively extend into the body from the mounting through holes which are bilaterally symmetrical on the side wall of the body and are respectively connected with the two clamping pieces; the pull rod is a cylinder with a variable cross section, wherein a rod body at the rear part of the pull rod is provided with a step, and the step surface of the step is arranged in the length direction of the pull rod and corresponds to the cylindrical nail and the cylindrical groove of the two clamping pieces which are mutually embedded when the step surface is abutted against the outer side wall of the plane of the body;
the two fixing pieces are symmetrically arranged on one side of the body, corresponding to the two clamping pieces, provided with the steps; one side surface of the fixing piece is a plane facing the steps of the clamping pieces, the other side surface of the fixing piece is an arc surface matched with the inner wall of the body, the bottom surface of one side, corresponding to the steps of the clamping pieces, of the fixing piece is provided with a limiting step matched with the steps, the clamping pieces move along the limiting step, and the other side of the fixing piece is connected to the bottom of the body through bolts.
Preferably, the front end part of the cylindrical nail is provided with a chamfer angle of 1-2 mm, and the angle of the chamfer angle and the axis of the cylindrical nail form an angle of 20-35 degrees.
The utility model relates to an induction heating formula thermal simulation testing machine is used for panel tensile sample's last lower extreme anchor clamps.
When the sample is loaded, the clamping pieces are pulled open to two sides through the pull rod, the two clamping pieces are reversely pushed back after the sample is placed in, the cylindrical nails on the clamping pieces on one side penetrate through the round holes at two ends of the sample and are finally inserted into the cylindrical grooves of the opposite clamping pieces, and the plate-shaped tensile sample is well fixed.
The utility model has the advantages that:
the utility model discloses an induction heating formula thermal simulation testing machine is in the application of different thickness plate strip thermal simulation research fields, and the wide advantage of make full use of induction heating uniform temperature zone has improved heating region control accuracy, realizes the thermal treatment of plate strip, technological simulation such as hot stretching, welding, has expanded the restriction of thermal simulation circular sample to the raw materials specification, provides effectual means to the thermoplasticity and the hot working process of studying the plate strip.
The utility model discloses nail round pin structure anchor clamps have simple structure, workable, and loading and unloading sample is convenient, and maneuverability is strong, the safe practical advantage of centre gripping sample.
Furthermore, the utility model discloses richen the anchor clamps type of induction heating formula thermal simulation machine, provided more, more suitable selection for the different test material.
Drawings
Fig. 1 is a perspective view of an embodiment of the present invention;
fig. 2 is a top view of an embodiment of the present invention;
fig. 3 is an exploded view of an embodiment of the present invention;
fig. 4 is an exploded perspective view of an embodiment of the present invention;
fig. 5 is a schematic view of a plate-like tensile specimen.
Detailed Description
Referring to fig. 1-4, the utility model discloses a panel hot stretching pinning structure anchor clamps based on induction heating formula thermal simulation testing machine, it includes:
the body 1 is a hollow cylinder with an opening at the upper end, the inner wall of the opening end is provided with an internal thread 101 connected with the upper end and the lower end of the thermal simulator, and the center of the bottom of the body 1 is provided with a through hole 102 for loading and unloading a sample 100; the left outer side wall and the right outer side wall of the body 1 are two planes 103 which are parallel to each other, and the lower parts of the two side walls are symmetrically provided with a mounting through hole 104 respectively;
the two clamping pieces 2 and 2' are arranged in the body 1; the two clamping pieces 2 and 2 ' are symmetrical semicircular pieces, and the middle parts of the opposite surfaces of the two clamping pieces 2 and 2 ' are respectively provided with a cylindrical nail 21 and a cylindrical groove 21 ' which can be mutually embedded; steps 22 and 22 'are symmetrically arranged on the two sides of the top surfaces of the clamping sheets 2 and 2';
the two pull rods 3 and 3 'respectively extend into the body 1 from the mounting through holes 104 which are arranged on the side wall of the body 1 in a bilateral symmetry manner and are respectively connected with the two clamping pieces 2 and 2'; the pull rod 3 (taking the pull rod 3 as an example, the same below) is a cylinder with a variable cross section, wherein a step is arranged on the rear rod body of the pull rod 3, and the step surface 31 of the step is arranged in the length direction of the pull rod and corresponds to the mutual embedding of the cylindrical nail 21 and the cylindrical groove 22 of the two clamping sheets 2 and 2' when the step surface 31 is abutted to the outer side wall of the plane of the body 1;
the two fixing pieces 4 and 4 ' are symmetrically arranged at one side of the body 1 corresponding to the two clamping pieces 2 and 2 ' and provided with steps 22 and 22 '; one side surface of the fixing piece 4 (taking the fixing piece 4 as an example, the same below) is a plane facing the steps of the clamping piece, the other side surface is an arc surface matched with the inner wall of the body 1, the bottom surface of one side of the fixing piece corresponding to the steps 22 and 22 ' is provided with limiting steps 41 and 41 ' matched with the steps 22 and 22 ', so that the clamping pieces 2 and 2 ' move along the limiting steps 41 and 41 ', and the other sides of the fixing pieces 4 and 4 ' are connected to the bottom of the body 1 through bolts 5 and 5 '.
Preferably, the front end part of the cylindrical nail is provided with a chamfer angle of 1-2 mm, and the angle of the chamfer angle and the axis of the cylindrical nail form an angle of 20-35 degrees.
Referring to fig. 5, a plate-shaped tensile specimen 100 is shown with a square hole formed in each end.
The utility model relates to an induction heating formula thermal simulation testing machine is used for panel tensile sample's last lower extreme anchor clamps. The clamp body is fixedly connected with the upper end and the lower end of the thermal simulation equipment through threads.
When a sample is loaded, the two clamping pieces of the lower clamp are pulled open towards two sides, the two clamping pieces are placed at the lower end of the sample, and the vertical centering of the sample is ensured; pulling the two clamping sheets of the upper clamp to two sides, starting a hydraulic system of the equipment, slowly adjusting the upper clamp to integrally move downwards, and enabling the upper end of the sample to enter the middle of the two clamping sheets of the upper clamp; and pushing the clamping pieces with the cylindrical nails and the cylindrical grooves inwards to enable the cylindrical nails to penetrate through the round holes at the two ends of the sample and be inserted into the clamping pieces with the cylindrical grooves oppositely until the two clamping pieces clamp the sample in the thickness direction. After the sample is loaded, the thermal stretching or other thermal simulation tests of the plate-shaped sample can be carried out according to the operation flow of the equipment.
Claims (2)
1. Panel hot stretching pinning structure anchor clamps based on induction heating formula thermal simulation testing machine, its characterized in that includes:
the body is a hollow cylinder with an opening at the upper end, the inner wall of the opening end is provided with internal threads connected with the upper end and the lower end of the thermal simulator, and the center of the bottom of the body is provided with a through hole for loading and unloading a sample; the left outer side wall and the right outer side wall of the body are two planes which are parallel to each other, and the lower parts of the two side walls are symmetrically provided with a mounting through hole respectively;
the two clamping pieces are arranged in the body; the two clamping pieces are symmetrical semicircular pieces, and the middle parts of the opposite surfaces of the two clamping pieces are respectively provided with a cylindrical nail and a cylindrical groove which can be mutually embedded; steps are symmetrically arranged on two sides of the top surface of the clamping sheet;
the two pull rods respectively extend into the body from the mounting through holes which are bilaterally symmetrical on the side wall of the body and are respectively connected with the two clamping pieces; the pull rod is a cylinder with a variable cross section, wherein a rod body at the rear part of the pull rod is provided with a step, and the step surface of the step is arranged in the length direction of the pull rod and corresponds to the cylindrical nail and the cylindrical groove of the two clamping pieces which are mutually embedded when the step surface is abutted against the outer side wall of the plane of the body;
the two fixing pieces are symmetrically arranged on one side of the body, corresponding to the two clamping pieces, provided with the steps; one side surface of the fixing piece is a plane facing the steps of the clamping pieces, the other side surface of the fixing piece is an arc surface matched with the inner wall of the body, the bottom surface of one side, corresponding to the steps of the clamping pieces, of the fixing piece is provided with a limiting step matched with the steps, the clamping pieces move along the limiting step, and the other side of the fixing piece is connected to the bottom of the body through bolts.
2. The clamp for the hot-stretch pin structure of the plate based on the induction heating type thermal simulation testing machine as claimed in claim 1, wherein a chamfer of 1-2 mm is processed at the front end of the cylindrical pin, and the angle of the chamfer forms an angle of 20-35 degrees with the axis of the cylindrical pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022468658.9U CN213933354U (en) | 2020-10-30 | 2020-10-30 | Plate thermal stretching pin structure clamp based on induction heating type thermal simulation testing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022468658.9U CN213933354U (en) | 2020-10-30 | 2020-10-30 | Plate thermal stretching pin structure clamp based on induction heating type thermal simulation testing machine |
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| Publication Number | Publication Date |
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| CN213933354U true CN213933354U (en) | 2021-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022468658.9U Active CN213933354U (en) | 2020-10-30 | 2020-10-30 | Plate thermal stretching pin structure clamp based on induction heating type thermal simulation testing machine |
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| CN (1) | CN213933354U (en) |
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