CN102305707A - Mould hydraulic tester - Google Patents
Mould hydraulic tester Download PDFInfo
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- CN102305707A CN102305707A CN201110225996A CN201110225996A CN102305707A CN 102305707 A CN102305707 A CN 102305707A CN 201110225996 A CN201110225996 A CN 201110225996A CN 201110225996 A CN201110225996 A CN 201110225996A CN 102305707 A CN102305707 A CN 102305707A
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Abstract
The invention relates to a mould hydraulic tester, comprising an oil tank, a hydraulic pump, a motor connected with a pump shaft, a proportional valve, a valve plate, a plurality of electromagnetic valves, a cooler, a main controller and an electric cabinet, wherein the pump shaft is connected with the motor, the proportional value is used for controlling pressure and flow rate of hydraulic oil; the electromagnetic valves are arranged on the valve plate and are used for controlling the on-off of a hydraulic channel; the cooler is used for cooling the hydraulic oil; the main controller and the electric cabinet are used for controlling the actions of the proportional value, the motor and the electromagnetic valves; the oil tank is communicated with a hydraulic pump by virtue of a pipeline; the hydraulic pump is communicated with the proportional value by virtue of the pipeline; the proportional value is communicated with the valve plate by virtue of the pipeline; the valve plate is communicated with an oil cylinder of the mould to be detected by virtue of the pipeline; the value plate is also communicated with the cooler by virtue of the pipeline; the cooler is communicated with the oil tank by virtue of the pipeline so as to form a hydraulic detection and cooling loop; and the motor, the proportional value and a plurality of electromagnetic valves are connected with the main controller by virtue of the electric cabinet.
Description
Technical field
The present invention relates to the technical field that mould hydraulic system and ejection system detect, specifically is a kind of mould hydraulic test machine that is used for testing mould hydraulic system and ejection system.
Background technology
At present, die production producer is to mould, and particularly generally can only there be a series of shortcomings in injection mold and on injection machine, carry out the die trial check through testing at the injection machine upper testing mould:
1, on the mould during machine die trial, have following problem like mould: ejecting mechanism has bad phenomenon to exist, and as when mould is assembled, having impurity not clean out, causes the problem of having ejected, and can't continue die trial; The rubber ring quality does not pass a test in the mould oil cylinder, causes the mould oil cylinder oil leakage phenomenon to occur; When the mould jacking block has problem such as loosening or dangerous; Then need descend the machine mould unloading; Again mould is adjusted, handled; The trouble caused of doing over again thus is very huge with the loss that causes; Be embodied in especially on the big mould; For example produce moulds such as bumper, instrument panel, door-plate, auxiliary fasia console, after last injection machine die trial, find problem again and then mould unloading is adjusted, handled like the big mould of the type by the time, this trouble and the loss that causes are very huge.
2, on the mould after the machine die trial; Generally through drawing a design several times and the client just is able to out fortune after checking and accepting; And for some problems of the potential existence of mould; Have only etc. the client buy mould go back the production some product or use certain hour after just can be found; Often need die production producer to send the technician to overhaul thus; Simultaneously also to the client bring the production time delay, cause economic loss, return the client and cause bad impression.
Summary of the invention
The technical matters that the present invention will solve is; Provide a kind of can be when mould be assembled and after the mould assembling is accomplished, on mould is tested before the injection machine die trial; Reduce because of the machine of descending mould unloading trouble caused and the loss of doing over again; And the client check and accept accomplish after, the potential existing problems of mould are tested before preparing out fortune; Reduce the maintenance number of times, the client's that avoids delay production time and the mould hydraulic test machine that reduces economy.
For solving the problems of the technologies described above; The present invention provides a kind of mould hydraulic test machine; It comprises fuel tank; Hydraulic pump; The motor that is connected with pump shaft; Be used to control the proportioning valve of hydraulic fluid pressure and flow; Valve plate; Be installed in and be used to control a plurality of solenoid valves that hydraulic channel circulates or ends on the valve plate; The refrigeratory of cooling hydraulic oil; The master controller and the electric cabinet that are used for the action of control ratio valve and motor and solenoid valve; Said fuel tank is communicated with hydraulic pump through pipeline; Said hydraulic pump is communicated with proportioning valve through pipeline; Said proportioning valve is communicated with valve plate through pipeline; Said valve plate is communicated with the oil cylinder of mould to be detected through pipeline; Said valve plate also is communicated with refrigeratory through pipeline; Said refrigeratory is communicated with formation hydraulic pressure through pipeline and detects and cooling circuit said motor with fuel tank; Proportioning valve is connected with master controller through electric cabinet with a plurality of solenoid valves.
After adopting above structure; The present invention compared with prior art; Have the following advantages: because said fuel tank is communicated with hydraulic pump through pipeline; Said hydraulic pump is communicated with proportioning valve through pipeline; Said proportioning valve is communicated with valve plate through pipeline; Said valve plate is communicated with the oil cylinder of mould to be detected through pipeline; Said valve plate also is communicated with refrigeratory through pipeline; Said refrigeratory is communicated with formation hydraulic pressure through pipeline and detects and cooling circuit with fuel tank; And motor is connected with the pump shaft of hydraulic pump; A plurality of solenoid valves that hydraulic channel circulates or ends that are used to control are installed on the valve plate; When testing like this; The tester can be provided with on master controller earlier; Oil pressure; Flow; Test parameters such as time; Open motor then; Hydraulic pump is exported the hydraulic oil in the fuel tank; The hydraulic oil of output carries out through proportioning valve making output data meet the test parameter of setting after the adjusting of pressure and flow; Shu Chu hydraulic oil is transported in the valve plate and forms oil pressure subsequently; Being installed in a plurality of solenoid valves on the valve plate this moment then controls the circulation of corresponding hydraulic channel and ends; And make the hydraulic channel circulation between the oil cylinder of valve plate and corresponding seized side mold; Thereby the oil cylinder of mould to be detected is started working under the effect of oil pressure; The final check that realizes mould to be detected; Master controller can be through controlling each solenoid valve the time and time interval of break-make make it satisfy the test duration parameter of setting; And can accomplish automatic successive control, thereby can repeatedly check through test procedure.Be back to the refrigeratory through valve plate from the hydraulic oil of the oil cylinder outflow of mould to be detected through check back and cool off; Finally be back in the fuel tank; Hydraulic oil in the fuel tank is realized recycling thus; The flow cycle of whole hydraulic oil has formed hydraulic pressure and has detected the cooling circuit of holding concurrently; The mould hydraulic test machine that the present invention adopts can pass through the main controller controls test parameter; And can repeatedly test automatically; Guarantee accuracy of test; Saved the trouble of on injection machine, carrying out the mould test; And can connect many group moulds through a plurality of solenoid valves; And through the setting test parameter is accomplished to test simultaneously in the master controller, organize moulds more, simple; Convenient, save time; Laborsaving.
Adopt mould hydraulic test machine of the present invention can realize following check:
1, mould is when assembling; After promptly the oil cylinder and ejecting mechanism of mould accomplished in assembling; It is loosening or dangerous whether whether whether the ejecting mechanism that utilizes mould hydraulic test machine can try mould out have bad phenomenon, oil cylinder to have oil leakage phenomenon, jacking block to have; Solve mould loss because of doing over again trouble caused and causing after all assembling is accomplished with this; Particularly be embodied on the big mould, for example bumper, instrument panel, door-plate, auxiliary fasia console mould etc.
2, after the mould assembling is accomplished, before the last injection machine die trial; Utilize mould hydraulic test machine can be earlier to do simulation and eject 30-50 time to being examined mould; To avoid mould behind last injection machine, to occur ejecting not smooth; Even the top phenomenon of not coming out, especially avoided some big moulds after last injection machine die trial, to find problem again and unloaded mould adjustment then, handle the trouble and the loss that are caused.
3, the client check and accept accomplish after, prepare out fortune before; Utilize mould hydraulic test machine to eject action to being examined the simulation that mould does more than 3000 times; Whether meet mould with the mechanism that verifies mould and go out to transport requirement; Avoided the potential problem of mould the problem includes: some problems only the client buy mould go back the production some product or use certain hour after could found phenomenon take place; Reduced follow-up maintenance number of times, production time of the client that avoids delay and cause economic loss.
As preferably, said solenoid valve is 6, and 6 solenoid valves are a preferred value, can satisfy the check of most of mould, is unlikely to again too much solenoid valve is set and causes waste.
As improvement, also be equipped with on the said valve plate and be convenient to the neutron that valve plate is communicated with the oil cylinder of mould to be detected, being communicated with of oil cylinder of valve plate and mould to be detected is convenient in the setting of said neutron.
As improvement, the pipeline that said proportioning valve is communicated with valve plate is provided with the tensimeter that is used to show hydraulic fluid pressure.Adopt tensimeter to be convenient to test the pressure in the oil circuit, show through tensimeter.
As improvement, mould hydraulic test machine also comprises temperature sensor and alarm, and said temperature sensor is arranged in the fuel tank, and said temperature sensor is connected with master controller through electric cabinet with alarm.Adopt temperature sensor to be used for testing the oil temperature in the fuel tank, when the oil temperature was too high, master controller can pass through alarm equipment alarm, prevented that the warm too high meeting of oil from burning out the part of the non-refractories such as O-ring seal in the fuel tank, thus protection equipment, the life-span of prolongation equipment.
Said mould hydraulic test machine comprises that also one is used for ccontaining and the cabinet of fuel tank, hydraulic pump, motor, valve plate is installed, and is provided with the separation beam that cabinet is separated into the upper and lower in this cabinet.Said valve plate is positioned at the upper strata of cabinet and the rear panel setting of close cabinet, and said hydraulic pump, motor, refrigeratory then are positioned at the lower floor of cabinet.And said fuel tank is L shaped, and horizontal component is positioned at the upper strata of cabinet, and vertically part is positioned at the lower floor of cabinet.Said cabinet can ccontaining mould hydraulic test machine parts, be convenient to mould hydraulic test machine whole carrying and use.
Description of drawings
Fig. 1 is for adopting the structural representation of mould hydraulic test machine of the present invention.
Fig. 2 is for adopting the structural representation after mould hydraulic test machine of the present invention removes front panel, top panel, right panel.
Fig. 3 is the hydraulic flow figure of the hydraulic system of mould hydraulic test machine of the present invention.
Fig. 4 is the frame principle figure of the control device of mould hydraulic test machine of the present invention.
As shown in the figure: 1, fuel tank, 2, pump, 3, motor, 4, refrigeratory, 5, valve plate, 6, solenoid valve, 7, proportioning valve, 8, alarm, 9, neutron, 10, cabinet, 11, separate beam, 12, tensimeter.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is described further.
Extremely shown in Figure 3 like Fig. 1; The hydraulic system that is used for mould hydraulic test machine of the present invention; It comprises the fuel tank 1 that hydraulic oil is housed; Hydraulic pump 2; The motor 3 that is connected with pump shaft; Be used to control the proportioning valve 7 of hydraulic fluid pressure and flow; Valve plate 5; Be installed in and be used to control 6 solenoid valves 6 that hydraulic channel circulates or ends on the valve plate 5; The refrigeratory 4 of cooling hydraulic oil; Be used for the control ratio valve; The master controller and the electric cabinet of motor and solenoid valve action, said fuel tank 1 is communicated with hydraulic pump 2 through pipeline; Said hydraulic pump 2 is communicated with proportioning valve 7 through pipeline; Said proportioning valve 7 is communicated with valve plate 5 through pipeline; Said valve plate 5 is communicated with the oil cylinder of mould to be detected through pipeline; Said valve plate 5 also is communicated with refrigeratory 4 through pipeline; Said refrigeratory 4 is communicated with formation hydraulic pressure through pipeline and detects and cooling circuit with fuel tank 1.Said motor, proportioning valve and a plurality of solenoid valves are connected with master controller through electric cabinet.
Said valve plate 5 is a hydraulic pressure industry common components, is usually used in forming multiple branch circuit and every occasion that single branch road all needs the circulation of solenoid control hydraulic channel or ends by single branch road.Be provided with the hydraulic channel that is interconnected in the said valve plate 5, be installed in the circulation of 6 corresponding hydraulic channels of solenoid control on the valve plate 5 or end.In the present embodiment, the exit of the hydraulic channel of said valve plate 5 is equipped with neutron 9, and wherein neutron 9 is a custom address in the industry, is similar to the effect of joint.Each neutron 9 is formed with three interfaces, one of them interface be used for valve plate 5 on the exit of corresponding hydraulic channel be connected; Another tells oily interface, is used for being connected with the oiler of the oil cylinder of corresponding mould to be detected; Last is recalled oily interface and is used for being connected with the oil-out of the oil cylinder of corresponding mould to be detected.The hydraulic channel that is interconnected in the said valve plate 5 also compiles formation left port and right output port, and said left port is used to be communicated with proportioning valve 7 through pipeline, and said right output port is used to be communicated with refrigeratory 4 through pipeline.
The model that said master controller adopts Shenzhen precious prompt letter company to produce is the PC of TB338B.Said electric cabinet is the electric cabinet of the weak current control charging equipment of employing master controller commonly used, and said proportioning valve is used for regulating pressure and the flow in the oil circuit.
Principle of work and process: the control device of mould hydraulic test machine adopts the main control chip of master controller (also claiming PC) as mould hydraulic test machine; Master controller output control signal is given electric cabinet; Electric cabinet and then control motor; Proportioning valve and a plurality of solenoid valve; Thereby can regulate the flow of oil circuit output; Oil pressure; Parameters such as time; During test; Can pass through the master controller input test parameter; Thereby can formulate different test parameters to different dies; Then through the master controller actuating motor; The direct motor drive hydraulic pump; Hydraulic pump is delivered to the hydraulic oil in the fuel tank in the valve plate and forms oil pressure from the left port of valve plate after proportioning valve carries out pressure and flow control; Master controller is regulated the parameters such as oil pressure and flow of oil circuit through regulating proportioning valve; Test parameter is satisfied the demands; At this moment; Adopt the oil out port of main controller controls solenoid valve to open; Hydraulic oil oil out port from neutron under the control of solenoid valve in the valve plate flows in the oil cylinder of mould to be detected; Thereby the oil cylinder of mould to be detected is started working under the effect of oil pressure; The final check that realizes mould to be detected, thus hydraulic oil from fuel tank through hydraulic pump; Proportioning valve; Flow to behind the valve plate and formed that above-mentioned hydraulic pressure detects and the hydraulic pressure test section of cooling circuit behind the oil cylinder of mould to be detected.After the test; Master controller cuts out the oil out port of solenoid valve; Open the oil return interface of solenoid valve; At this moment; The hydraulic oil that flows out from the oil-out of mould oil cylinder to be detected is back in the valve plate behind the oil return interface of neutron; Being back to hydraulic oil in the valve plate this moment flow to the refrigeratory from the right output port of valve plate under the control of solenoid valve and cools off (because hydraulic oil temperature behind hydraulic pump raises to some extent; Event need be cooled off); Cooled hydraulic oil finally is back in the fuel tank through pipeline; So far, the hydraulic oil that flows out from the oil-out of mould oil cylinder to be detected is through neutron; Valve plate; After being back in the fuel tank, refrigeratory formed the hydraulic pressure cooling segment of above-mentioned hydraulic pressure detection and cooling circuit.Master controller can accomplish to make the every certain interval of time of mould to eject and indentation through the break-make interval of control electromagnetic valve.Solved the trouble of former manual test, simple and convenient, and can connect many group moulds, and accomplish to test simultaneously many group moulds, simple, convenient through setting test parameter in the master controller through a plurality of solenoid valves, save time, laborsaving.
More oil cylinder that is synchronized with the movement is used in addition to connect on the pipeline of oil cylinder of neutron 9 and mould to be detected and also the oil collect port (not shown) can be set, so that all can be connected with same neutron 9 through oil collect port more.
It is the preferred version of present embodiment that 6 solenoid valves 6 are installed on valve plate 5, and the present invention is used for also can being provided with by customer requirement on the valve plate 5 of hydraulic system of mould hydraulic test machine a plurality of solenoid valves of other quantity.
As improvement, the pipeline that said proportioning valve 7 is communicated with valve plate 5 is provided with the tensimeter 12 that is used to show hydraulic fluid pressure.Adopt tensimeter to be convenient to test the pressure in the oil circuit, show through tensimeter.
Said mould hydraulic test machine also comprises temperature sensor and alarm 8, and said temperature sensor is arranged in the fuel tank, and said temperature sensor is connected with master controller through electric cabinet with alarm 8.Adopt temperature sensor to be used for testing the oil temperature in the fuel tank, when the oil temperature was too high, master controller can pass through alarm equipment alarm, prevented that the warm too high meeting of oil from burning out the part of the non-refractories such as O-ring seal in the fuel tank, thus protection equipment, the life-span of prolongation equipment.
The mould hydraulic test machine that adopts the present invention to be used for the hydraulic system of mould hydraulic test machine can be realized following check to mould to be detected:
1, mould is when assembling; After promptly the oil cylinder and ejecting mechanism of mould accomplished in assembling; It is loosening or dangerous whether whether whether the ejecting mechanism that utilizes mould hydraulic test machine can try mould out have bad phenomenon, oil cylinder to have oil leakage phenomenon, jacking block to have; Solve the loss that mould is done over again trouble caused and caused with this after all assembling is accomplished; Particularly be embodied on the big mould, for example bumper, instrument panel, door-plate, auxiliary fasia console mould etc.
2, after the mould assembling is accomplished, before the last injection machine die trial; Can utilize mould hydraulic test machine to do simulation earlier ejects 30-50 time; To avoid mould behind last injection machine, to occur ejecting not smooth; Even the top phenomenon of not coming out, especially avoided some big moulds after last injection machine die trial, to find problem again and unloaded mould adjustment then, handle the trouble and the loss that are caused.
3, the client check and accept accomplish after, prepare out fortune before; The simulation that can utilize mould hydraulic test machine to do more than 3000 times ejects action; Whether meet mould with the mechanism that verifies mould and go out to transport requirement; Avoided the potential problem of mould the problem includes: some problems only the client buy mould go back the production some product or use certain hour after could found phenomenon take place; Reduced follow-up maintenance number of times, avoided bringing the causing of delay, economic loss of production time to the client.
Mould hydraulic test machine of the present invention comprises that also one is used for ccontaining and the cabinet 10 of fuel tank 1, hydraulic pump 2, motor 3, valve plate 5 is installed, and is provided with the separation beam 11 that cabinet 10 is separated into the upper and lower in this cabinet 10.Said valve plate 5 is positioned at the upper strata of cabinet 10 and the rear panel setting of close cabinet 10.Said hydraulic pump 2, motor 3,4 lower floors that are positioned at cabinet 10 of refrigeratory.And said fuel tank 1 is L shaped, and horizontal component is positioned at the upper strata of cabinet 1, and vertically part is positioned at the lower floor of cabinet 1.
Claims (6)
1. mould hydraulic test machine; It is characterized in that; It comprises fuel tank (1); Hydraulic pump (2); The motor that is connected with pump shaft (3); Be used to control the proportioning valve (7) of hydraulic fluid pressure and flow; Valve plate (5); Be installed in and be used to control a plurality of solenoid valves (6) that hydraulic channel circulates or ends on the valve plate (5); The refrigeratory (4) of cooling hydraulic oil; The master controller and the electric cabinet that are used for the action of control ratio valve (7) and motor (3) and solenoid valve (6); Said fuel tank (1) is communicated with hydraulic pump (2) through pipeline; Said hydraulic pump (2) is communicated with proportioning valve (7) through pipeline; Said proportioning valve (7) is communicated with valve plate (5) through pipeline; Said valve plate (5) is communicated with the oil cylinder of mould to be detected through pipeline; Said valve plate (5) also is communicated with refrigeratory (4) through pipeline; Said refrigeratory (4) is communicated with formation hydraulic pressure through pipeline and detects and cooling circuit said motor (1) with fuel tank (1); Proportioning valve (7) is connected with master controller through electric cabinet with a plurality of solenoid valves (6).
2. mould hydraulic test machine according to claim 1 is characterized in that: said solenoid valve (6) is 6.
3. mould hydraulic test machine according to claim 1 is characterized in that: also be equipped with on the said valve plate (5) and be convenient to the neutron (9) that valve plate (5) is communicated with the oil cylinder of mould to be detected.
4. mould hydraulic test machine according to claim 1 is characterized in that: it also comprises temperature sensor and alarm (8), and said temperature sensor is arranged in the fuel tank (1), and said temperature sensor is connected with master controller through electric cabinet with alarm (8).
5. mould hydraulic test machine according to claim 1 is characterized in that: the pipeline that said proportioning valve (7) is communicated with valve plate (5) is provided with the tensimeter (12) that is used to show hydraulic fluid pressure.
6. mould hydraulic test machine according to claim 1; It is characterized in that: it comprises that also one is used for ccontaining and the cabinet (10) of fuel tank (1), hydraulic pump (2), motor (3), valve plate (5) is installed, and is provided with the separation beam (11) that cabinet (10) is separated into the upper and lower in this cabinet (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110225996 CN102305707B (en) | 2011-08-08 | 2011-08-08 | Mould hydraulic tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110225996 CN102305707B (en) | 2011-08-08 | 2011-08-08 | Mould hydraulic tester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102305707A true CN102305707A (en) | 2012-01-04 |
| CN102305707B CN102305707B (en) | 2013-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110225996 Expired - Fee Related CN102305707B (en) | 2011-08-08 | 2011-08-08 | Mould hydraulic tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102305707B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305711A (en) * | 2011-08-22 | 2012-01-04 | 宁波南方塑料模具有限公司 | Hydraulic test method for die |
| CN105313285A (en) * | 2014-07-17 | 2016-02-10 | 淮安市吉达塑料机械有限公司 | Novel injection machine control system |
| CN106996866A (en) * | 2017-05-03 | 2017-08-01 | 广州市艺强电器有限公司 | A kind of oil pressure die ejection system test machine |
| CN113109037A (en) * | 2021-04-09 | 2021-07-13 | 宁波博力汽车零部件有限公司 | Detection equipment for service life of push rod of die casting die |
Citations (4)
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|---|---|---|---|---|
| WO1995016529A1 (en) * | 1993-12-16 | 1995-06-22 | A.E. Bishop & Associates Pty Limited | Apparatus for manufacturing steering rack bars |
| CN201338403Y (en) * | 2009-01-19 | 2009-11-04 | 东风汽车股份有限公司 | High-pressure quick electric control hydraulic control device for movable workbench of press |
| CN102141481A (en) * | 2010-02-01 | 2011-08-03 | 芜湖亚奇汽车部件有限公司 | Movable device for testing state of blowing mold |
| CN202195934U (en) * | 2011-08-08 | 2012-04-18 | 宁波南方塑料模具有限公司 | Mold hydraulic pressure testing machine |
-
2011
- 2011-08-08 CN CN 201110225996 patent/CN102305707B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995016529A1 (en) * | 1993-12-16 | 1995-06-22 | A.E. Bishop & Associates Pty Limited | Apparatus for manufacturing steering rack bars |
| CN201338403Y (en) * | 2009-01-19 | 2009-11-04 | 东风汽车股份有限公司 | High-pressure quick electric control hydraulic control device for movable workbench of press |
| CN102141481A (en) * | 2010-02-01 | 2011-08-03 | 芜湖亚奇汽车部件有限公司 | Movable device for testing state of blowing mold |
| CN202195934U (en) * | 2011-08-08 | 2012-04-18 | 宁波南方塑料模具有限公司 | Mold hydraulic pressure testing machine |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305711A (en) * | 2011-08-22 | 2012-01-04 | 宁波南方塑料模具有限公司 | Hydraulic test method for die |
| CN105313285A (en) * | 2014-07-17 | 2016-02-10 | 淮安市吉达塑料机械有限公司 | Novel injection machine control system |
| CN106996866A (en) * | 2017-05-03 | 2017-08-01 | 广州市艺强电器有限公司 | A kind of oil pressure die ejection system test machine |
| CN113109037A (en) * | 2021-04-09 | 2021-07-13 | 宁波博力汽车零部件有限公司 | Detection equipment for service life of push rod of die casting die |
| CN113109037B (en) * | 2021-04-09 | 2022-05-17 | 宁波博力汽车零部件有限公司 | Detection equipment for service life of push rod of die casting die |
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|---|---|
| CN102305707B (en) | 2013-07-10 |
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