CN105817897B - Charpy bar based on remote control clamping and stud welding reconstructs device and method - Google Patents
Charpy bar based on remote control clamping and stud welding reconstructs device and method Download PDFInfo
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- CN105817897B CN105817897B CN201610362475.4A CN201610362475A CN105817897B CN 105817897 B CN105817897 B CN 105817897B CN 201610362475 A CN201610362475 A CN 201610362475A CN 105817897 B CN105817897 B CN 105817897B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
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- Optics & Photonics (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention relates to a kind of Charpy bar based on remote control clamping and stud welding to reconstruct device and method, and the reconstruct device includes:Cutting machine, for being cut to the standard Charpy bar section thrust through Charpy-type test, obtain middle inserting paragraph;Removable clamping device, for will clamp and transport sample section to be reconstructed, the sample section to be reconstructed includes middle inserting paragraph and end linkage section;Weld jig, for clamping sample section to be reconstructed;Capacitance energy storage type stud welding machine, realize that closed loop circuit is connected with the sample section to be reconstructed on weld jig by electrode bolts, welded for treating reconstruct sample section, realize that sample reconstructs.Compared with prior art, the present invention have the advantages that it is accurate, stably, link cost is low, it is good to reconstruct sample centering.
Description
Technical field
The invention belongs to Charpy bar recombinant technique field, is related to a kind of Charpy bar reconstruct device and side
Method, device and method is reconstructed more particularly, to a kind of Charpy bar based on remote control clamping and stud welding.
Background technology
The degree of aging of nuclear reaction pressure vessel can be rushed by the Charpy by being pre-placed in nuclear reaction pressure vessel
The ductile-brittle transiton curve for hitting sample acquisition is evaluated.However, the space that supervision sample is placed in container is limited, it is impossible to places too
More Charpy bars.By means of sample reconfiguration technique, the Charpy bar thrust is reconstructed into new sample, can profit
More data are obtained with former disrumpent feelings sample, irradiation control sample are saved, to obtain more impact toughness values under irradiation dose, to set
Standby lengthen the life provides basic data.
Sample reconfiguration technique refers to, by the Main Deformation of sample after experiment, be often referred to plastically deforming area and cut away, and retains
Only there occurs the region of elastic deformation, and the Main Deformation using the region as new sample, i.e., middle inserting paragraph, then at it
Both sides are reconstructed into complete sample by welding or other methods bonded, to obtain the mechanical property of raw material.Sample
Reconfiguration technique is also current foreign project circle and the problem of scientific circles extremely pays close attention to.
Specifically, for irradiation Charpy bar, it thrusts rear sample and is divided into two-section, has subregion to exist
Only do not changed by elastic stress, its mechanical property in impact, using the material in these regions with after new material welding, adding again
Work breach, the sample that can reuse the reconstruct obtain the impact toughness value of raw material.For specific reconfiguration technique, both at home and abroad
The document published is few.The domestic research on sample reconstruct just starts to walk, and only preliminary theory has done in Suzhou thermal technology institute
Explore (the patent No.:CN201410060019.5), the specific device and reconstructing method of the sample reconstruct of correlation are not proposed.
Hui Hu team of East China University of Science has carried out the basic research of sample reconstruct, to ballistic work sample in impact process
Stress, strain and deformation carried out system research, have studied the key technical problems such as rational inserting paragraph, have studied sharp
The methods of flush weld, argon arc welding, electron beam the feasibility in sample reconstruct, have studied point in sample temperature field in welding process
Cloth, and carried out the correlation test of reconstruct Charpy bar, demonstrate the feasibility of reconstruct sample.
What the welding method that uses of sample reconstruct was feasible at present has the welding methods such as manual argon arc welding, Laser Welding, electron beam.
For manual argon arc welding, due to welding when the type of cooling not easy to operate and welding process in temperature it is unstable, less
It is adapted to sample reconstruct.For Laser Welding, the requirement of sample reconstruct can be reached, but cost is too high, it is less efficient.For
For electron beam, welding effect is fine, but equipment and connected mode cost are very high, is also not suitable for substantial amounts of sample reconstruct.Cause
This, it is necessary to study a kind of new Charpy bar reconstructing method.
In Practical Project, because irradiation control sample has nuclear pollution, its stretched, impact and fracture toughness survey
It is to be carried out in hot cell during examination, people straighforward operation machinery hand, drives the manipulator in hot cell to carry out phase by non-browning glass
The clamping of sample is closed, is then stretched or impact test operates.Therefore, Charpy bar reconfiguration technique is applied to core
On electrical engineering, it is necessary to consider with the presence of protecting wall, in the case that people cannot be introduced into, how to realize the remote of Charpy bar
Journey clamping and Welding Problems.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide one kind accurately, stably, even
It is connected into this low Charpy bar based on remote control clamping and stud welding and reconstructs device and method, can be real under radiation environment
Existing sample reconstruct.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of Charpy bar based on remote control clamping and stud welding reconstructs device, including:
Cutting machine, for being cut to the standard Charpy bar section thrust through Charpy-type test, obtain middle
Inserting paragraph;
Removable clamping device, for sample section to be reconstructed, the sample to be reconstructed to be clamped and transported by remote control mode
Section includes middle inserting paragraph and end linkage section;
Weld jig, for clamping sample section to be reconstructed;
Capacitance energy storage type stud welding machine, closed loop circuit is realized by the sample section to be reconstructed in electrode bolts and weld jig
Connection, welded for treating reconstruct sample section, realize that sample reconstructs.
The removable clamping device includes creeper truck, mechanical arm, head and straighforward operation handle, and the head is located at shoe
On band car, the mechanical arm is connected with head, and the straighforward operation handle communicates to connect with mechanical arm and creeper truck respectively.
The mechanical arm uses steering wheel cascade, including pedestal, steering wheel, support and the mechanical arm body being sequentially connected,
Six-freedom motion is realized, the pedestal is located on head.
The weld jig includes guide rail, slide block assembly and clamp assembly, wherein,
The guide rail includes the guiderail base and plate being connected, and guiderail base includes being used to be arranged the slide assemblies
Centering cylinder, slide block assembly are arranged on guiderail base by centering cylindrical slid;
The slide block assembly includes identical structure and symmetrically arranged first sliding block and the second sliding block, first sliding block and
Second sliding block includes top shoe, insulating barrier and the sliding block being from top to bottom sequentially connected, and the top shoe offers one and is used for
The V-shaped groove of sample section to be reconstructed is placed, the end face of top shoe is provided with the electrode bolts fixing hole for being used for installing electrode bolts, should
The kernel of section for the sample section to be reconstructed that the Kong Xinyu of electrode bolts fixing hole is positioned on V-shaped groove is consistent, the downslide
Block bottom matches connection with guiderail base, and sliding block is provided with the centering cylinder fixing hole coordinated with the centering cylindrical gap;
In use, a sample section to be reconstructed is set respectively on the V-shaped groove of first sliding block and the second sliding block;
The clamp assembly includes motor, push rod, sleeve and spring, described push rod one end and motor connection, the other end with
Bush whorl is connected, and the spring housing is connected on centering cylinder by spring base with guiderail base, and the sleeve passes through
Plate is sheathed on centering cylinder, and one end of the push rod and sleeve connection, which is additionally provided with, to be used for and centering cylinder external cylindrical surface gap
The central through hole of cooperation.
The guiderail base is shaped as spill disymmetry triangle sliding friction line slideway, sliding block bottom shape
Shape is convex disymmetry triangle.
The V-shaped groove of first sliding block and the second sliding block is oppositely arranged.
The plate is provided with sleeve fixing hole, and the sleeve fixing hole coordinates with sleeve gap.
The V-shaped groove surface scribbles insulating materials.
The sleeve includes push rod fixing hole, and internal thread, the push rod and sleeve connection are machined with the push rod fixing hole
One end be provided with external screw thread, push rod is coordinated with push rod fixing hole by screw thread.
A kind of reconstruct device of the Charpy bar based on remote control clamping and stud welding described in utilization realizes that Charpy is rushed
The method for hitting sample reconstruct, including:
Step 1:Cutting machine is cut to the standard Charpy bar section thrust through Charpy-type test, by moulding change
Shape area is cut, and leaves middle inserting paragraph of the elastic deformation area as reconstruct sample, and the middle inserting paragraph and the end newly added connect
Connect section and form sample section to be reconstructed;
Step 2:Sample section to be reconstructed is clamped and is thrown on the V-shaped groove of weld jig using removable clamping device;
Step 3:Push rod screw-threaded coupling on weld jig so that sample to be reconstructed clamps and produces clamping force, wherein, phase
Realize that closed loop circuit is connected with capacitance energy storage type stud welding machine by electrode bolts in the sample section both ends to be reconstructed of connection;
Step 4:The welding of sample section to be reconstructed is completed by capacitance energy storage type stud welding machine;
Step 5:The welded specimen section that step 4 is obtained, as sample section to be reconstructed, repeats to walk with the other end linkage section
Rapid 2~4, obtain reconstructing sample.
Compared with prior art, of the invention this enters the welding restructuring procedure of Charpy bar by being remotely controlled clamping completely
Row operation, instead of manual operations, and so as to avoid damage of the radiativity of sample to human body, while the structure of V-groove ensures
The centering of reconstruct sample, makes finally obtain mechanical property close to the reconstruct sample of original sample, has advantages below:
1) crawl and dispensing of Charpy bar section are completed in the cooperation of creeper truck and mechanical arm, and personnel can be grasped by being remotely controlled
The sample restructuring procedure under radiation environment is completed, ensure that the security of staff;
2) reduced into using capacitance energy storage type arc stud welding as reconstruct welding manner while welding effect is ensured
This, adds the practicality of the present invention, this welding method is not only accurately, stably, and link cost is low, can obtain meeting power
Learn the new sample of performance requirement;
3) fixture positions sample by top shoe V-groove, ensure that the centering of two sections of samples to be reconstructed, and then ensure that
Reconstruct the validity of sample;
4) sample restructuring procedure realizes partial automation, improves the efficiency of reconstruct.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the structural representation of the first sliding block or the second sliding block of the invention;
Fig. 3 is the structural representation of the removable clamping device of the present invention;
Fig. 4 is the schematic flow sheet of sample reconstructing method of the present invention;
Fig. 5 is the restructuring schematic diagram of present invention reconstruct sample.
In figure:1, top shoe;2, insulating barrier;3, sliding block;4, push rod;5, sleeve;6, plate;7, centering cylinder is fixed
Hole;8, sleeve fixing hole;9, guiderail base;10, centering cylinder;11, spring;12, electrode bolts;13, the first sliding block;14, the
Two sliding blocks;15, creeper truck;16, steering wheel;17, head;18, paw;19, V-shaped groove;20, electrode bolts fixing hole.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with technical solution of the present invention
Premised on implemented, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to
Following embodiments.
As shown in figure 1, the present embodiment, which provides a kind of Charpy bar based on remote control clamping and stud welding, reconstructs dress
Put, including cutting machine, removable clamping device, weld jig and capacitance energy storage type stud welding machine, wherein:Cutting machine is used for warp
The standard Charpy bar section that Charpy-type test is thrust is cut, and obtains middle inserting paragraph;Removable clamping device is used
In being clamped by remote control mode and transporting sample section to be reconstructed, sample section to be reconstructed includes middle inserting paragraph and end linkage section;
Weld jig is used to clamp sample section to be reconstructed;Capacitance energy storage type stud welding machine in electrode bolts and weld jig by treating weight
Structure sample section realizes that closed loop circuit connects, and is welded for treating reconstruct sample section, realizes that sample reconstructs.
Weld jig includes guide rail, slide block assembly and clamp assembly.Guide rail includes the guiderail base 9 and plate 6 being connected,
Guiderail base 9 includes being used for the centering cylinder 10 for being arranged slide assemblies, and slide block assembly is slideably positioned in by centering cylinder 10 and led
On flange of rail seat 9.
Slide block assembly includes that structure is identical and the symmetrically arranged sliding block 14 of first sliding block 13 and second, the first sliding block 13 and the
The width of two sliding blocks 14 can be different.As shown in Fig. 2 the first sliding block 13 and the second sliding block equal 14 include what is be from top to bottom sequentially connected
Top shoe 1, insulating barrier 2 and sliding block 3.Top shoe 1 offers a V-shaped groove 19 for being used to place sample section to be reconstructed, top shoe 1
End face be provided with and be used to the electrode bolts fixing holes 20 of electrode bolts be installed, the Kong Xinyu of the electrode bolts fixing hole 20 is placed
It is consistent in the kernel of section of the sample section to be reconstructed on V-shaped groove 19.The bottom of sliding block 3 matches connection with guiderail base 9, this
In embodiment, guiderail base 9 is shaped as spill disymmetry triangle sliding friction line slideway, and the lower shape of sliding block 3 is
Convex disymmetry triangle, sliding block 3 are provided with the centering cylinder fixing hole 7 coordinated with the gap of centering cylinder 10, ensure to be oriented to
Precision.The surface of V-shaped groove 19 scribbles insulating materials.Top shoe 1 is connected by screw with sliding block 3, and insulating gum cover is cased with outside screw.
When insulated part in slide block assembly is for ensureing that welding positive and negative polarities are powered, do not formed between slide block assembly and guide rail logical
Road, so as to ensure that electric current only forms path by sample to be reconstructed.The V-shaped groove 19 of first sliding block 13 and the second sliding block 14 is relative to be set
Put, in use, setting a sample section to be reconstructed on the V-shaped groove 19 of the first sliding block 13 and the second sliding block 14 respectively, utilize V-groove 19
Sample is positioned, ensures the centering of reconstruct sample.
Clamp assembly includes motor, push rod 4, sleeve 5 and spring 11, the one end of push rod 4 and motor connection, the other end and sleeve
5 threaded connections, spring 11 is sheathed on centering cylinder 10, and is connected by spring base with guiderail base 9, and foot is provided when clamping
The clamping force of enough sizes.Sleeve 5 is sheathed on centering cylinder 10 through plate 6, and one end that push rod 4 is connected with sleeve 5 is additionally provided with
For the central through hole coordinated with the external cylindrical surface gap of centering cylinder 10.Plate 6 is provided with sleeve fixing hole 8, and the sleeve is fixed
Hole 8 coordinates with the gap of sleeve 5.Sleeve 5 includes push rod fixing hole, and internal thread, push rod 4 and sleeve are machined with the push rod fixing hole
One end of 5 connections is provided with external screw thread, and push rod 4 is coordinated with push rod fixing hole by screw thread.
As shown in figure 3, removable clamping device includes creeper truck 15, mechanical arm, head 17 and straighforward operation handle, head
17 are located at 15 on creeper truck, and mechanical arm is connected with head, and straighforward operation handle communicates to connect with mechanical arm and creeper truck respectively.Machine
Tool arm uses steering wheel cascade, including pedestal, steering wheel 16, support and the mechanical arm body being sequentially connected, and realizes six degree of freedom
Motion, pedestal are located on head.Mechanical arm body includes large arm, forearm, paw set and the paw 18 being sequentially connected.Six freedom
Degree is assigned as:The shoulder joint of one degree of freedom, the elbow joint of two frees degree, the wrist joint and one degree of freedom of two frees degree
Paw opening and closing.In the present embodiment, the type selecting of steering wheel is LD-1501MG digital rudder controllers, and staff passes through straighforward operation handle
The motion for sending signal control steering wheel is controlled mechanical arm so as to realize.
The present invention is reconstructed into research object with Charpy bar.According to GB/T 229-2007《Metal material Charpy pendulu
Impact test method》Regulation, standard Charpy bar be a cuboid, material 16MnR, and centre is provided with V-type or U-shaped scarce
Mouthful, specific size is:Long 55mm, cross section 10mmX10mm, the reconstruct research of this Charpy sample use v-notch test block.It is based on
Team's research of East China University of Science, it is known that insert the determination of segment length:(1) Charpy bar reconstruct inserting paragraph can under normal temperature
Choose 14-21mm;(2) it is less than normal temperature:Insertion segment length takes 14-21mm to belong to conservative category.The present invention uses 20mm centre
Inserting paragraph.
As shown in figure 4, realize the summer using the above-mentioned Charpy bar reconstruct device based on remote control clamping and stud welding
The method of Charpy sample reconstruct, including:
Step S1:It will be thrust after Charpy impact is tested and be placed on cutting for two-part standard Charpy bar
On station, the cutting of sample is completed using cutting machine according to concerned process steps, cuts about 7.5mm plastically deforming area respectively, is retained
The sample of 20mm length is used as middle inserting paragraph.Same material end of the both sides of middle inserting paragraph respectively with two sections of 17.5mm length connects
Connect section and be welded into complete standard Charpy bar.When welding for the first time, weld length is 20mm sample section a to be reconstructed
(part 7) and length are 17.5mm sample section b (part 8) to be reconstructed, so as to obtain welded specimen section, when welding for the second time,
The end linkage section that obtained welded specimen section and 17.5mm are grown is welded, obtains final reconstruct sample.
Step S2:Cutting work station is positioned, is recorded as anchor point o, controls creeper truck to move by straighforward operation handle
Move to anchor point o, sending signal by straighforward operation handle controls six degree of freedom mechanical arm to grip saw working bench
On sample section a to be reconstructed, Synchronization Control mechanical arm and creeper truck clip to sample to be reconstructed the second sliding block 14 of weld jig
Top.
Step S3:Mechanical arm is smoothly launched sample section a to be reconstructed onto the second sliding block 14 under certain height,
Sample adjust automatically after the V-groove 19 of the second sliding block 14 is contacted, is bonded V-groove 19.Sample section b to be reconstructed smoothly is launched
Onto the first sliding block 13.Electric power switch is opened, motor driven push rod 4 rotates, and push rod 4 promotes the second sliding block 14, makes second
Sliding block 14 slides to the right on spill disymmetry triangle sliding friction line slideway.Sample section a to be reconstructed and sample to be reconstructed
It is adjacent to after section b contacts, sample section a to be reconstructed promotes sample section b to be reconstructed to move right, and sample section b to be reconstructed promotes first to slide
Block 13 slides to the right on line slideway, and the spring 11 being now enclosed on centering cylinder compresses.Spiral shell between push rod 4 and sleeve 5
When line is locked, spring 11 provides enough clamping forces, clamps sample, now stress balance, is no longer moved to the left.Sample to be reconstructed
Section a left end is connected with negative electrode, and sample section b to be reconstructed right-hand member is connected with positive electrode, and two samples are formed with fixture, welding machine
Complete circuit loop.
Step S4:Capacitance energy storage type stud welding machine switch is opened, welding machine works, and moment generation electric arc completes weldering between sample
Connect, obtain completing the sample after reconstruct, be ready to use in subsequent mechanical performance test, be illustrated in figure 5 the schematic diagram of restructuring procedure.
Claims (9)
1. a kind of Charpy bar based on remote control clamping and stud welding reconstructs device, it is characterised in that including:
Cutting machine, for being cut to the standard Charpy bar section thrust through Charpy-type test, obtain middle insert
Section;
Removable clamping device, for sample section to be reconstructed, the sample section bag to be reconstructed to be clamped and transported by remote control mode
Include middle inserting paragraph and end linkage section;
Weld jig, for clamping sample section to be reconstructed;
Capacitance energy storage type stud welding machine, realize that closed loop circuit connects by the sample section to be reconstructed in electrode bolts and weld jig
Connect, welded for treating reconstruct sample section, realize that sample reconstructs;
The weld jig includes guide rail, slide block assembly and clamp assembly, wherein,
The guide rail includes the guiderail base and plate being connected, and guiderail base includes being used for the centering for being arranged the slide block assembly
Cylinder, slide block assembly are arranged on guiderail base by centering cylindrical slid;
The slide block assembly includes identical structure and symmetrically arranged first sliding block and the second sliding block, first sliding block and second
Sliding block includes top shoe, insulating barrier and the sliding block being from top to bottom sequentially connected, and the top shoe offers one and is used to place
The V-shaped groove of sample section to be reconstructed, the end face of top shoe are provided with the electrode bolts fixing hole for being used for installing electrode bolts, the electrode
The kernel of section for the sample section to be reconstructed that the Kong Xinyu of bolt fixing hole is positioned on V-shaped groove is consistent, the sliding block bottom
End matches connection with guiderail base, and sliding block is provided with the centering cylinder fixing hole coordinated with the centering cylindrical gap;Use
When, a sample section to be reconstructed is set respectively on the V-shaped groove of first sliding block and the second sliding block;
The clamp assembly includes motor, push rod, sleeve and spring, described push rod one end and motor connection, the other end and sleeve
Threaded connection, the spring housing are connected on centering cylinder by spring base with guiderail base, and the sleeve passes through plate
It is sheathed on centering cylinder, one end of the push rod and sleeve connection is additionally provided with for coordinating with centering cylinder external cylindrical surface gap
Central through hole.
2. the Charpy bar according to claim 1 based on remote control clamping and stud welding reconstructs device, its feature
It is, the removable clamping device includes creeper truck, mechanical arm, head and straighforward operation handle, and the head is located at crawler belt
Che Shang, the mechanical arm are connected with head, and the straighforward operation handle communicates to connect with mechanical arm and creeper truck respectively.
3. the Charpy bar according to claim 2 based on remote control clamping and stud welding reconstructs device, its feature
It is, the mechanical arm uses steering wheel cascade, including pedestal, steering wheel, support and the mechanical arm body being sequentially connected, and realizes
Six-freedom motion, the pedestal are located on head.
4. the Charpy bar according to claim 1 based on remote control clamping and stud welding reconstructs device, its feature
It is, the guiderail base is shaped as spill disymmetry triangle sliding friction line slideway, the sliding block lower shape
For convex disymmetry triangle.
5. the Charpy bar according to claim 1 based on remote control clamping and stud welding reconstructs device, its feature
It is, the V-shaped groove of first sliding block and the second sliding block is oppositely arranged.
6. the Charpy bar according to claim 1 based on remote control clamping and stud welding reconstructs device, its feature
It is, the plate is provided with sleeve fixing hole, and the sleeve fixing hole coordinates with sleeve gap.
7. the Charpy bar according to claim 1 based on remote control clamping and stud welding reconstructs device, its feature
It is, the V-shaped groove surface scribbles insulating materials.
8. the Charpy bar according to claim 1 based on remote control clamping and stud welding reconstructs device, its feature
It is, the sleeve includes push rod fixing hole, is machined with internal thread in the push rod fixing hole, and the one of the push rod and sleeve connection
End is provided with external screw thread, and push rod is coordinated with push rod fixing hole by screw thread.
9. a kind of reconstruct device of the Charpy bar based on remote control clamping and stud welding using described in claim 1 is realized
The method of Charpy bar reconstruct, it is characterised in that including:
Step 1:Cutting machine is cut to the standard Charpy bar section thrust through Charpy-type test, by plastic deformation area
Cut, leave middle inserting paragraph of the elastic deformation area as reconstruct sample, the middle inserting paragraph and the end linkage section newly added
Form sample section to be reconstructed;
Step 2:Sample section to be reconstructed is clamped and is thrown on the V-shaped groove of weld jig using removable clamping device;
Step 3:Push rod screw-threaded coupling on weld jig so that sample to be reconstructed clamps and produces clamping force, wherein, it is connected
Sample section both ends to be reconstructed realize that closed loop circuit is connected with capacitance energy storage type stud welding machine by electrode bolts;
Step 4:The welding of sample section to be reconstructed is completed by capacitance energy storage type stud welding machine;
Step 5:Welded specimen section that step 4 is obtained and the other end linkage section as sample section to be reconstructed, repeat step 2~
4, obtain reconstructing sample.
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