CN111650060B - Cupping test machine with adjustable punching press head - Google Patents
Cupping test machine with adjustable punching press head Download PDFInfo
- Publication number
- CN111650060B CN111650060B CN202010372814.3A CN202010372814A CN111650060B CN 111650060 B CN111650060 B CN 111650060B CN 202010372814 A CN202010372814 A CN 202010372814A CN 111650060 B CN111650060 B CN 111650060B
- Authority
- CN
- China
- Prior art keywords
- stamping
- speed
- head
- speed adjusting
- stamping head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
- G01N3/307—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated by a compressed or tensile-stressed spring; generated by pneumatic or hydraulic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/001—Impulsive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0067—Fracture or rupture
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/025—Geometry of the test
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0296—Welds
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a punch head adjustable cupping test machine, and belongs to the technical field of plate forming tests. The testing machine comprises a stamping head replacing device, a stamping speed adjusting device system, a stamping load detecting and controlling device system, a test plate tensioning device system and a frame, and is used for detecting the stamping forming performance of a laser tailor-welded blank welding seam, the tailor-welded blank is arranged between a female die and a blank holder, and a pressure sensor is arranged in a hydraulic cylinder. The invention can change more suitable stamping head and stamping speed according to different specifications of samples, more accurately detect the defects at the welding seam by applying pre-tightening tension, and improve the accuracy and sensitivity of welding seam quality detection.
Description
Technical Field
The invention relates to the technical field of plate forming tests, in particular to a stamping head adjustable cup drawing testing machine for detecting the stamping forming capability of a welding seam of a laser tailor-welded blank.
Background
In the cold rolling production process, the laser tailor-welding mostly adopts deep fusion welding or through welding and other processes, and welding quality problems such as weld toughness reduction, welding defects and the like are caused by very rapid welding process due to different welding process parameters, so that heat capacity difference, thermal expansion and heat flux are easily caused, microcracks are caused to appear and expand, strip breakage is likely to appear in subsequent cold rolling processing, the production rhythm on site is influenced, and a large amount of economic losses are caused. Therefore, the welding is generally subjected to preliminary quality inspection after welding.
The main means of the on-site preliminary detection of the weld joint is to test the weld joint through a cupping test, place a laser welding joint between a female die and a blank holder, compress and fix the laser welding joint, impact the weld joint by a punching head, and finally use the cracking direction of the welding joint as the judgment basis of the quality of the weld joint. The main problems existing in the current mode are that: 1. the cupping test mainly aims at sheet materials below 2mm, but the thickness of the strip steel in the field actual production is 2-6 mm, and the coverage thickness range is narrow. 2. The original cupping test machine only has one circular punching head for detecting the welding line, and can not flexibly adapt to various actual conditions of band steel with different materials and different thicknesses. 3. The stress condition in the rolling process cannot be simulated actually, and the final quality evaluation result is unreliable. 4. The impact on the stamping speed is large due to the influence of the friction resistance of the material in the stamping process. 5. And the final quality evaluation standard is too simple, the actual condition of the welding line cannot be truly and effectively reflected, the result error is large, and the like.
Disclosure of Invention
The invention aims to solve the technical problem of providing the stamping head adjustable cupping test machine for detecting the weld joint punch forming capability of the laser tailor-welded blank, and the device has the advantages of high automation degree, high judgment result precision, high judgment standard reliability and stable stamping speed, and can be flexibly suitable for the quality inspection of laser welding joints of various strip steel specifications.
The device comprises a central processing unit, a female die, a blank holder, a stamping head replacing device, a stamping head, a stamping rod, a hydraulic pump, a stamping speed adjusting device system, a speed and pressure monitoring system, a rack, a sample clamping device and a pre-tightening tension system, wherein the testing machine is integrally installed on the rack, the female die is installed in a matched mode with the blank holder, the blank holder is connected with the pre-tightening tension system, a sample is fixed on the sample clamping device, the stamping head is installed on the stamping head replacing device, the stamping head replacing device is installed on the stamping rod, the lower portion of the stamping rod is connected with the stamping speed adjusting device system, the speed and pressure monitoring system is arranged between the stamping rod and the stamping speed adjusting device system, the stamping head replacing device comprises a stamping head converting device and a gear shaft combined through keys, the gear shaft at the bottom of the stamping head converting device is connected with the output end of a hydraulic cylinder through keys, the stamping speed adjusting device system comprises a hydraulic cylinder, The system comprises a safety valve, a speed regulating valve, an electromagnetic valve, a three-position four-way reversing valve, a pressure reducing valve, an energy accumulator, a speed regulating loop, a speed conversion loop and a quick movement loop, wherein a hydraulic pump is connected to the bottom of a stamping speed regulating device system to provide power to drive a hydraulic cylinder, the speed regulating loop regulates the stamping speed through the speed regulating valve, a speed and pressure monitoring system comprises a stay cord displacement sensor and a pressure sensor, and a pre-tightening tension system comprises a clamping manipulator, a hydraulic pump and a hydraulic cylinder.
The punching press head conversion device comprises 3 punching press heads with different shapes, the punching press heads are replaced by rotating the punching press head converter, the punching press head conversion device is fixed with the supporting seat through a bolt, and the supporting seat is connected with the punching press rod.
A stay cord displacement sensor of the speed and pressure monitoring system is mounted at the position of a stamping rod, a pressure sensor is mounted inside a hydraulic cylinder, a stamping head keeps stamping a sample at a constant speed in the stamping process, the stay cord displacement sensor and the pressure sensor receive signals in real time, the stamping speed is guaranteed to be constant in the stamping process through feedback adjustment of an encoder, and data are sent to a computer end to be recorded and analyzed.
Two groups of clamping mechanical arms of the pre-tightening tension system are provided, the sample is tightly clamped by the two groups of mechanical arms, power is provided by the hydraulic pump, the sample is tensioned to two sides through the hydraulic cylinder, and pre-tightening tension is provided.
The punching speed adjusting device system comprises a data acquisition and analysis module and a control module, and transmits the displacement information of the stay cord displacement sensor to the central processing unit to participate in program analysis and control the speed adjusting valve to adjust the speed in real time.
The speed and pressure monitoring system comprises a data acquisition and analysis module and a control module, transmits the load information of the pressure sensor to the central processing unit to participate in program analysis, and controls the pressure reducing valve to regulate the pressure in real time.
The replacement of the stamping head is realized by rotating the stamping head conversion device, the adjustment of the stamping speed is realized by the feedback of the displacement sensor and the control of the electromagnetic valve of the speed regulating valve, the stamping load is adjusted in size by the pressure reducing valve, the speed and pressure monitoring system acquires information such as acting force and displacement of a sample on the stamping head in the stamping process in real time, and the sample pre-tightening device applies pre-tightening tension to the sample before stamping. The replacement of the stamping head is realized by rotating a stamping head converter, the speed regulating device realizes speed grading regulation and control through a speed regulating valve control electromagnetic valve, the stamping load regulates the load size through a pressure reducing valve, the detection and control device acquires information such as acting force and displacement of a material on the stamping head in the stamping process in real time, the load is exerted on stamping to be regulated and controlled, and the sample pre-tightening device exerts pre-tightening tension on a sample before stamping.
The technical scheme of the invention has the following beneficial effects:
according to the scheme, the device can adapt to the strip steels with different specifications and different thicknesses, can simulate the multi-axis stress state of the welding seam area of the strip steel, provides more welding seam quality detection indexes, namely stamping depth and maximum stamping force, can monitor the welding quality of the welding seam more accurately, improves the efficiency of welding process parameter debugging, reduces the waste of strip steel raw materials caused by the welding quality, and reduces the production cost.
Drawings
FIG. 1 is a schematic structural view of an adjustable cupping test machine with a stamping head according to the present invention;
FIG. 2 is a schematic view of a stamping head according to the present invention;
FIG. 3 is a schematic illustration of the hydraulic system of the present invention;
FIG. 4 is a schematic view of the mating of the female mold and the blank holder of the present invention;
FIG. 5 is a flow chart of the quality inspection of the tailor welded blank according to the present invention.
Wherein: 1-female die, 2-blank holder, 3-stamping head replacing device, 4-stamping head, 5-stamping rod, 6-hydraulic pump, 7-stamping speed regulating device system, 8-speed and pressure monitoring system, 9-frame, 10-sample clamping device, 11-pre-tightening tension system, 2-1-support seat, 2-2-bolt, 2-3 a-stamping head A, 2-3B-stamping head B, 2-3C-stamping head C, 2-4-stamping head converting device, 3-1-safety valve, 3-2 a-electromagnetic valve A, 3-2B-electromagnetic valve B, 3-3-speed regulating valve and 3-4-three-position four-way reversing valve, 3-5-pressure reducing valve and 3-6-accumulator.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.
The invention provides a punch head adjustable cupping test machine for detecting the punch forming capability of a welding seam of a laser tailor-welded blank.
As shown in fig. 1, the device comprises a central processing unit, a female die 1, a blank holder 2, a stamping head replacing device 3, a stamping head 4, a stamping rod 5, a hydraulic pump 6, a stamping speed adjusting device system 7, a speed and pressure monitoring system 8, a frame 9, a sample clamping device 10 and a pre-tightening tension system 11, wherein the testing machine is integrally installed on the frame 9, the female die 1 and the blank holder 2 are installed in a matching way, the blank holder 2 is connected with the pre-tightening tension system 11, a sample is fixed on the sample clamping device 10, the stamping head 4 is installed on the stamping head replacing device 3, the stamping head replacing device 3 is installed on the stamping rod 5, the lower part of the stamping rod 5 is connected with the stamping speed adjusting device system 7, the speed and pressure monitoring system 8 is arranged between the stamping rod 5 and the stamping speed adjusting device system 7, the stamping head replacing device 3 comprises a stamping head converting device 2-4 and a gear shaft combined through a key, the gear shaft at the bottom of the stamping head conversion device 2-4 is connected with the output end of the hydraulic cylinder through a key, the stamping speed adjusting device system 7 comprises the hydraulic cylinder, a safety valve 3-1, a speed adjusting valve 3-3, an electromagnetic valve, a three-position four-way reversing valve 3-4, a pressure reducing valve 3-5, an energy accumulator, a speed adjusting loop, a speed conversion loop and a quick movement loop, a hydraulic pump 6 is connected to the bottom of the stamping speed adjusting device system 7 and provides power to drive the hydraulic cylinder, the speed adjusting loop adjusts the stamping speed through the speed adjusting valve 3-3, a speed and pressure monitoring system 8 comprises a stay cord displacement sensor and a pressure sensor, a pre-tightening tension system 11 comprises a clamping manipulator, a hydraulic pump 6 and a hydraulic cylinder, the replacement of the stamping head is realized by rotating the stamping head converter, the adjustment of the stamping speed is realized by the feedback of the sensor and the electromagnetic valve control of the speed adjusting valve, the punching load is adjusted through the pressure reducing valve, the speed and pressure monitoring device obtains information such as acting force and displacement of a sample on a punching head in the punching process in real time, and the sample pre-tightening device applies pre-tightening tension to the sample before punching. And (4) recording first data when the sample is just cracked, continuously punching until the crack is completely opened, observing the cracking direction of the welding line, and judging whether the sample is qualified.
As shown in figure 2, the stamping head conversion device 2-4 comprises a support seat 2-1 fixed by two bolts and arranged in a hydraulic circuit to be fixed with the output end of a hydraulic cylinder, two bolts 2-2 on the stamping head support seat are connected with the stamping head conversion device 2-4 to fasten the stamping head conversion device 2-4, so as to ensure the stability of the stamping head in the stamping process, the stamping head A2-3a, the stamping head B2-3B and the stamping head C2-3C are three stamping heads with different specifications, selecting punching heads with different specifications according to samples with different models and thicknesses, wherein the punching head conversion device 2-4 comprises 3 punching heads 4 with different shapes, the stamping head 4 is replaced by rotating the stamping head converter, the stamping head conversion device 2-4 is fixed with the supporting seat 2-1 through a bolt, and the supporting seat 2-1 is connected with the stamping rod 5.
A stay cord displacement sensor of a speed and pressure monitoring system 8 is arranged at the position of a stamping rod 5, a pressure sensor is arranged inside a hydraulic cylinder, a stamping head keeps stamping a sample at a constant speed in the stamping process, the displacement sensor and the pressure sensor receive signals in real time, the stamping speed is guaranteed to be constant in the stamping process through feedback adjustment of an encoder, and data are sent to a personal computer end to be recorded and analyzed.
Two groups of clamping mechanical arms of the pre-tightening tension system 11 are provided, a sample is tightly clamped by the two groups of mechanical arms, power is provided by a hydraulic pump, and the sample is tensioned to two sides through a hydraulic cylinder to provide pre-tightening tension.
The punching speed adjusting device system 7 comprises a data acquisition and analysis module and a control module, transmits the displacement information of the pull rope type displacement sensor to the central processing unit to participate in program analysis, and controls the speed adjusting valves 3-3 to adjust the speed in real time.
The speed and pressure monitoring system 8 comprises a data acquisition and analysis module and a control module, transmits the load information of the pressure sensor to the central processing unit to participate in program analysis, and controls the pressure reducing valves 3-5 to regulate pressure in real time.
As shown in fig. 3, the hydraulic system device includes a hydraulic pump, a safety valve, a solenoid directional valve, a speed regulating valve, an accumulator, and the like. The oil passes through the energy accumulator 3-6, then the pressure system can be adjusted through the pressure reducing valve 3-5, the three-position four-way reversing valve 3-4 can control three speeds, the form of series connection of three speed regulating valves is adopted, when the electromagnetic valve B3-2B short-circuits the second speed regulating valve, a feeding speed is obtained, when the second short-circuit does not occur, the second speed is obtained, and whether the second electromagnetic valve A3-2a short-circuits or not is controlled in a similar way to obtain the third speed. A safety valve 3-1 is arranged at the outlet of the throttle valve, and when the hydraulic pressure of the working chamber of the working cylinder reaches a limit value, a safety valve A3-1 is opened. The overflow of the safety valve is the flow through the throttle valve.
As shown in fig. 4, the schematic diagram of the matching between the female die 1 and the blank holder 2 shows that, because a certain amount of pre-tightening tension exists in the sample before the blank holder 2 and the female die 1 clamp the sample, the shape of the female die and the blank holder as shown in fig. 4 is designed to prevent the sample from being clamped, so that the friction force between the sample and the female die is increased, and the sample is prevented from being clamped.
As shown in fig. 5, the overall quality inspection flow chart of the present invention includes the main components of selecting the stamping head, the speed scheme, and the quality inspection and evaluation of the stamping capability of the pre-tightening test piece and the laser welding joint. Firstly, selecting a stamping head and a stamping speed according to different sample types and thicknesses, and determining a stamping scheme; applying tension to the sample through a sample pre-tightening device before stamping; in the stamping process, the stamping depth when cracks appear is recorded, the load is continuously applied until the sample completely cracks, the cracking direction of the sample is observed, and the quality of the welding process of the strip steel is comprehensively analyzed according to a plurality of welding quality detection indexes such as the stamping depth, the maximum stamping force and whether the cracking direction of the sample is perpendicular to the welding line.
The quality detection device for the stamping forming capability of the laser welding joint can adapt to strip steel welding joints with different thicknesses and specifications, the stamping speed can be adjusted according to the types and thicknesses of strip steel, the multi-axis stress state borne by the strip steel welding joint is simulated in the stamping process of the pre-tightening device and the stamping head, the stamping depth and the borne load in the stamping process are detected by adding the sensor, the stability of the result is judged by using the load reduction difference, and the complexity of repeated experiments is avoided.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (1)
1. The utility model provides a cup drawing testing machine with adjustable punching press head which characterized in that: comprises a central processing unit, a female die (1), a blank holder (2), a stamping head replacing device (3), a stamping head (4), a stamping rod (5), a hydraulic pump (6), a stamping speed adjusting device system (7), a speed and pressure monitoring system (8), a frame (9), a sample clamping device (10) and a pre-tightening tension system (11), wherein the testing machine is integrally installed on the frame (9), the female die (1) and the blank holder (2) are installed in a matched manner, the blank holder (2) is connected with the pre-tightening tension system (11), a sample is fixed on the sample clamping device (10), the stamping head (4) is installed on the stamping head replacing device (3), the stamping head replacing device (3) is installed on the stamping rod (5), the lower part of the stamping rod (5) is connected with the stamping speed adjusting device system (7), the speed and pressure monitoring system (8) is arranged between the stamping rod (5) and the stamping speed adjusting device system (7), the stamping head replacing device (3) comprises a stamping head converting device (2-4) and a gear shaft combined through a key, the gear shaft at the bottom of the stamping head converting device (2-4) is connected with the output end of a hydraulic cylinder through the key, a stamping speed adjusting device system (7) comprises the hydraulic cylinder, a safety valve (3-1), a speed adjusting valve (3-3), an electromagnetic valve, a three-position four-way reversing valve (3-4), a pressure reducing valve (3-5), an energy accumulator, a speed adjusting loop, a speed converting loop and a quick movement loop, a hydraulic pump (6) is connected to the bottom of the stamping speed adjusting device system (7) and provides power to drive the hydraulic cylinder, the speed adjusting loop adjusts the stamping speed through the speed adjusting valve (3-3), a speed and pressure monitoring system (8) comprises a stay rope displacement sensor and a pressure sensor, a pre-tightening tension system (11) comprises a clamping manipulator, A hydraulic pump (6) and a hydraulic cylinder;
the stamping head conversion device (2-4) comprises 3 stamping heads (4) with different shapes, the stamping heads (4) are replaced by rotating the stamping head converter, the stamping head conversion device (2-4) is fixed with the supporting seat (2-1) through a bolt (2-2), and the supporting seat (2-1) is connected with the stamping rod (5);
two groups of clamping mechanical arms of the pre-tightening tension system (11) are provided, the sample is tightly clamped by the two groups of mechanical arms, power is provided by a hydraulic pump, the mechanical arms are tensioned to two sides through a hydraulic cylinder, and pre-tightening tension is provided;
a stay cord displacement sensor of the speed and pressure monitoring system (8) is arranged at the position of the stamping rod (5), a pressure sensor is arranged in a hydraulic cylinder, a stamping head keeps stamping a sample at a constant speed in the stamping process, the stay cord displacement sensor and the pressure sensor receive signals in real time, the constant stamping speed in the stamping process is ensured through feedback adjustment of an encoder, and data are sent to a computer end for recording and analysis;
the stamping speed adjusting device system (7) comprises a data acquisition and analysis module and a control module, transmits the displacement information of the stay cord displacement sensor to a central processing unit to participate in program analysis, and controls the speed adjusting valve (3-3) to adjust the speed in real time;
the speed and pressure monitoring system (8) comprises a data acquisition and analysis module and a control module, transmits the load information of the pressure sensor to the central processing unit to participate in program analysis, and controls the pressure reducing valves (3-5) to regulate pressure in real time;
the pre-tightening device and the stamping process of the stamping head simulate the multi-axis stress state of a strip steel welding joint, a sensor is added to detect the stamping depth and the load in the stamping process, and the stability of the result is judged by the load reduction difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010372814.3A CN111650060B (en) | 2020-05-06 | 2020-05-06 | Cupping test machine with adjustable punching press head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010372814.3A CN111650060B (en) | 2020-05-06 | 2020-05-06 | Cupping test machine with adjustable punching press head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111650060A CN111650060A (en) | 2020-09-11 |
| CN111650060B true CN111650060B (en) | 2021-09-07 |
Family
ID=72346594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010372814.3A Active CN111650060B (en) | 2020-05-06 | 2020-05-06 | Cupping test machine with adjustable punching press head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111650060B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507344A (en) * | 2011-10-14 | 2012-06-20 | 上海工程技术大学 | Metal sheet cupping test method related to strain rate |
| US20180067028A1 (en) * | 2016-08-26 | 2018-03-08 | Rasoul Jelokhani Niaraki | Apparatus for universal testing of metal sheet formability |
| CN207556973U (en) * | 2017-12-13 | 2018-06-29 | 济南普业机电技术有限公司 | A kind of micro-processor controlled cupping testing machine |
| CN208252467U (en) * | 2018-03-12 | 2018-12-18 | 浙江彪马自动化设备有限公司 | A kind of hydraulic red hydraulic system for rushing equipment |
| CN110005664A (en) * | 2019-04-18 | 2019-07-12 | 江苏南方润滑股份有限公司 | A kind of bidirectional speed governing hydraulic control system based on hydraulic cylinder load oil back chamber |
| CN209167019U (en) * | 2018-10-16 | 2019-07-26 | 广安市前锋区桂兴镇小学校 | A kind of new material stress deformation test hydraulic system |
| CN110375944A (en) * | 2019-07-19 | 2019-10-25 | 中国矿业大学 | A kind of horizontal wirerope bending ejection impact vibration determination method and device |
| CN210188242U (en) * | 2019-06-11 | 2020-03-27 | 郴州市恒通模具科技有限公司 | Stamping die with multiple punches |
-
2020
- 2020-05-06 CN CN202010372814.3A patent/CN111650060B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102507344A (en) * | 2011-10-14 | 2012-06-20 | 上海工程技术大学 | Metal sheet cupping test method related to strain rate |
| US20180067028A1 (en) * | 2016-08-26 | 2018-03-08 | Rasoul Jelokhani Niaraki | Apparatus for universal testing of metal sheet formability |
| CN207556973U (en) * | 2017-12-13 | 2018-06-29 | 济南普业机电技术有限公司 | A kind of micro-processor controlled cupping testing machine |
| CN208252467U (en) * | 2018-03-12 | 2018-12-18 | 浙江彪马自动化设备有限公司 | A kind of hydraulic red hydraulic system for rushing equipment |
| CN209167019U (en) * | 2018-10-16 | 2019-07-26 | 广安市前锋区桂兴镇小学校 | A kind of new material stress deformation test hydraulic system |
| CN110005664A (en) * | 2019-04-18 | 2019-07-12 | 江苏南方润滑股份有限公司 | A kind of bidirectional speed governing hydraulic control system based on hydraulic cylinder load oil back chamber |
| CN210188242U (en) * | 2019-06-11 | 2020-03-27 | 郴州市恒通模具科技有限公司 | Stamping die with multiple punches |
| CN110375944A (en) * | 2019-07-19 | 2019-10-25 | 中国矿业大学 | A kind of horizontal wirerope bending ejection impact vibration determination method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111650060A (en) | 2020-09-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105738202B (en) | A kind of method for carrying out intensity detection to guide plate solder joint using pressure testing machine | |
| CN102004056B (en) | Self-piercing riveting quality online detection system and method | |
| US10768071B2 (en) | Testing machine for accurately controlling looseness of transverse load | |
| CN101590562A (en) | Resistance welding equipment and welding control method | |
| CN102759485B (en) | Micro pressure shear experimental device and testing method of mechanical property of fusion welding microcell | |
| CN201237584Y (en) | Autotracking ultrasonic wave on-line fault detection system for slewing body profile | |
| CN101294947B (en) | Test device and method for acquiring limit strain of laser tailor welded plate plane with different thickness | |
| CN203858156U (en) | Clamp device for measuring shear strength of lapped joint | |
| CN105643131A (en) | Device for testing cold cracking tendency of welding joint on basis of adjustable rigid restraint and apparition of device | |
| CN102621931A (en) | On-line monitoring system for friction stir welding and on-line monitoring method therefor | |
| KR20170079822A (en) | Cylinder apparatus with fixing flange in which outer force sensing facility embedded | |
| CN111650060B (en) | Cupping test machine with adjustable punching press head | |
| CN107717564A (en) | A kind of centre bore positioning fixture that earhole is bored for slip shaft yoke | |
| CN105181464A (en) | Testing method and device for tensile property of high-load wide and thick plate | |
| CN201446354U (en) | High-performance resistance welding device | |
| CN212059759U (en) | Automatic cupping test machine for cold rolling production line | |
| CN208142249U (en) | A kind of battery modules pressing device | |
| CN104111196B (en) | The strength detecting method of spot welding guide plate wedge penetration test machine and guide plate solder joint | |
| CN214749456U (en) | Compression test device is used in air conditioner pipe production and processing | |
| CN205393818U (en) | Welded joint cold crack incline test device based on adjustable rigidity is restricted | |
| CN105333844A (en) | Online rapid measurement apparatus and method for detecting rivet point dimension | |
| CN215545766U (en) | Friction stir welding device capable of feeding back temperature change in real time and friction stir welding system | |
| CN210893951U (en) | Detection tool for automobile door interior trim panel | |
| CN209036135U (en) | A kind of multi-dimensional force circular saw bench sawing force test device | |
| CN209239644U (en) | A kind of strain chip circular saw bench sawing force test system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |