CN104669672A - Microforming servo press - Google Patents
Microforming servo press Download PDFInfo
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- CN104669672A CN104669672A CN201310604334.5A CN201310604334A CN104669672A CN 104669672 A CN104669672 A CN 104669672A CN 201310604334 A CN201310604334 A CN 201310604334A CN 104669672 A CN104669672 A CN 104669672A
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Abstract
The invention provides a microforming servo press which is applied to the field of microforming. The microforming servo press consists of a machine body, a permanent magnet synchronous alternating current servo motor, a planetary reducer, a coupling, a crankshaft, rolling bearings, a round head connecting rod, a sliding block body, grating sensors and the like, wherein the sliding block body is guided by two groups of identical sliding block guide rails with plate-type roller chains and two groups of guide pillars and guide sleeves; a movable workbench capable of precisely carrying out error compensation in real time is fixedly mounted on the lower part of the machine body; the movable workbench is driven by two servo motors in different directions; the servo motors are connected with screw-nut pairs adopting differential motion transmission structures by plum couplings; the movable workbench internally comprises a workbench plate, guide rails, guide sliding blocks, electromagnets, permanent magnets, matched auxiliary structural members, and the like. The microforming servo press is capable of precisely compensating the guide error of the sliding blocks and the micro displacement produced by a die in the forming technological process in real time, the requirement of a mircoforming technology is satisfied, and the requirement of a microforming part for high precision and high quality is met.
Description
Technical field
The present invention relates to mechanical equipment technical field, especially a kind of microsecond delay servo-pressing machine.
Background technology
Microsecond delay refers to and utilizes the plastic deformation of material to be shaped size to be at least in the two-dimensional direction in the technology of submillimeter magnitude part, typical forming technology has punching, blanking, bending, drawing and shaping etc., drip molding intensity is high, surface quality good, dimensional accuracy is high, and technique is simple, production efficiency is high, cost is low, is suitable for the production in enormous quantities of nearly net products.Microsecond delay technology has become first of 21 century key technology.
Servo-pressing machine is that a kind of structure is simple, maintenance is easy, energy consumption is low, and can complete complicated processing technique, enhances productivity, effectively reduces the advanced former of technique noise.Servomotor combines with new control system, and slide block can be made to accelerate at any time in motion process, slow down and stop, and freely, bottom dead centre repeatable accuracy is high in flexible movements, flexible and better adaptability.
A kind of multifunctional servo crank presser is disclosed in Chinese patent literature CN201154548Y, multifunctional servo crank presser comprises the crank press by AC servo machinery driving, the main servo control unit of AC servo motor connects electrical network, energy-storage units and computer control system respectively, and accumulation power supply abrupt release electric energy carries out punching press; Computer control system, according to the program preset, controls the corner of AC servo motor, speed and moment of torsion in real time, thus realizes best mode of operation; The output shaft of its AC servo motor is provided with brake, and be in transmission connection through reduction box and crank press, the bent axle of crank press and lathe bed are respectively arranged with angular transducer and displacement transducer, and respectively the closed height displacement of slide block and crankshaft angles are detected in real time, the numerical signal of detection is fed back to computer control system, to make corresponding adjustment simultaneously.The detection feedback system of the driving control system of this kind of forcing press and bent axle and slide block can meet the requirement of micro-plasticity forming technique, but cannot detect and feed back the variable quantity of the horizontal direction displacement caused because of the steering error of slide block in vertical guiding process; And cannot detect and feed back the micrometric displacement that mould produces in punching course; Corresponding high-accuracy compensation structure or system is not had yet; In micro-plasticity forming technique, the requirement of product size precision and surface quality cannot be met.
Disclose a kind of bidirectional electromagnet-controlled permanent magnet suspension and guider in Chinese patent literature CN1257022A, this device permanent magnet suspension car body and passenger weight, power-on and power-off magnet, only as control stability use, saves suspension electric energy.Track is built up by silicon steel sheet, three-phase windings of not forgiving.Permanent magnet has damping ring, and except direction of advance, can produce damping to the disturbed motion of other each side, do not need to provide electric energy just can improve operation stability, permanent magnet and electromagnet are staggeredly arranged perpendicular to orbital direction, make suspension have the function of guiding concurrently.The configuration achieves the suspension in one direction and guide function.But the travelling table of micro forming apparatuses must carry out smooth and easy accurate movement on three-dimensional, can meet the requirement of micro-plasticity forming technique.
Summary of the invention
The applicant carries out accurate in real time compensation for the micrometric displacement that cannot occur mould in the steering error of slide block and forming technology in existing production technology, can not meet this shortcoming of microsecond delay technological requirement, there is provided another kind to be suitable for the servo-pressing machine of microsecond delay, meet the requirement of microsecond delay parts to forming accuracy and surface quality.
The technical solution used in the present invention is as follows:
A kind of have the microsecond delay servo-pressing machine accurately carrying out error compensation in real time, comprise fuselage, described fuselage is provided with permanent magnet synchronous ac servomotor, described permanent magnet synchronous ac servomotor is connected with planetary reducer, the control circuit of described permanent magnet synchronous ac servomotor is connected with servo amplifier, servo amplifier is connected with host computer by serial line interface RS-232C, described planetary reducer is connected with bent axle by shaft coupling, described bent axle is by rolling bearing system support and connection and be fixed on fuselage, described bent crank portion of shaft is connected with ball head connecting rod, the bulb part of described ball head connecting rod is connected with slide body, described slide body is led by the slide block guide rail of two groups of board-like roller chains of band and two groups of guide pillar guide sleeve structures.
The relative position that described slide body pumps in process carry out tracing detection by the grating displacement sensor be arranged on fuselage and Real-time Feedback to host computer, when needs are braked slide body, by serial line interface RS-232C, control instruction is conveyed to PLC by host computer, carry out communication by PLC and servo amplifier and complete braking procedure; The acceleration of slide body and moderating process also can realize thus.
On fuselage around described slide body, be fixed with four micrometric displacement grating sensors all around, for detecting the minor variations of the displacement all around caused due to steering error of slide body; And Real-time Feedback is to host computer.
The travelling table accurately carrying out error compensation is in real time fixed with at underbelly, described travelling table outside comprises two servomotors, described servomotor by shaft coupling be connected with leading screw respectively, described leading screw is provided with supporting feed screw nut, described feed screw nut is connected with guide pin bushing fixed head by soket head cap screw, described guide pin bushing fixed head is fixed with guide pin bushing, described guide pin bushing coordinates with the axis of guide, lead more accurately to screw pair, the described axis of guide is connected with bearings by stiff end supporting seat.
On fuselage around described travelling table, be fixed with four micrometric displacement grating sensors all around, for detecting and the compensation result of feedback operation platen.
Working plate is comprised in the inside of described travelling table, described working plate coordinates with longitudinal rail and carries out longitudinally guiding, described longitudinal rail is fixed on transverse slider and holds concurrently longitudinal rail fixed head upper surface, described longitudinal rail fixed head coordinates with guide rail and carries out laterally steering, described guide rail is fixed in the mounting groove of cross slide way fixed head by soket head cap screw, 6 permanent magnets are fixed with at described cross slide way fixed head lower surface, the power supply of described electromagnet is connected with control circuit, described control circuit is connected with PLC, described PLC is connected with host computer by serial line interface RS-232C, the output of the power of different size is realized by controlling electric current, thus make working plate and stable the moving up and down of other auxiliary function structural members.
Be provided with guide pillar guide sleeve structure in the side of described working plate, each four covers in front and back, each two covers in left and right, carry out precision guiding to the motion all around of working plate.Be fixed with connector in the surrounding of described working plate, described connector is connected with connecting plate with the form of guide runner, realizes described connecting plate bottom and assists being synchronized with the movement up and down of guide frame and working plate.Horizontal guide rail and horizontally-guided slide block is fixed with between described working plate and connecting plate, respectively have a set of all around, what be connected with described connecting plate has the floor rails of carrying out horizontally-guided, and described floor rails is packed in guide pin bushing fixed head upper surface by soket head cap screw.When described working plate carries out error compensation all around, under the cooperation of the guide frame that the guide frame of horizontal guide rail and horizontal slider guide composition forms with bottom surface horizontal guide rail at connecting plate, the flexible motion of working plate can be ensured.
Described guide pin bushing fixed head is provided with two groups of guide pillar guide sleeve structures, guide pillar is by the support and connection of stiff end supporting seat, respectively have three groups at the fore-and-aft direction of described working plate, left and right directions respectively has two groups, and this structure is used for leading to moving up and down of working plate under the drive of guide pin bushing fixed head.
Beneficial effect of the present invention is as follows:
The present invention is rational in infrastructure, easy to operate, cost is low, easy to maintenance, energy consumption is low, not only can complete complicated processing technique, enhance productivity, effective reduction technique noise, and can the micrometric displacement that produces in shaping process of the steering error of fine compensation slide block and mould in real time, meet the requirement of microsecond delay technique, ensure that the demand of microsecond delay parts to high accuracy, high quality of products.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the D-D sectional view of Fig. 1.
Fig. 3 is workbench side schematic view of the present invention.
Fig. 4 is workbench front schematic view of the present invention.
Fig. 5 is the partial sectional view of Fig. 3.
Wherein: 1, permanent magnet synchronous ac servomotor; 2, planetary reducer; 3, shaft coupling; 4, fuselage; 5, bent axle; 6, ball head connecting rod; 7-1, double-row bearing; 7-2, single-row rolling bearing; 8, slide body; 9-1, micrometric displacement grating sensor; 9-2, micrometric displacement grating sensor; 10, travelling table; 11, workbench backing plate; 12-1, connecting rod; 13, leading screw; 14, the axis of guide; 15, guide pin bushing fixed head; 16, stiff end supporting seat 17-1,17-2, servomotor; 18-1, plum coupling; 19-1, nut; 36, slide block guide rail; 39, slide block guide post; 40, guide pin bushing; 46, grating displacement sensor; 53, guide pin bushing; 54, stiff end supporting seat; 55, guide pin bushing fixed head; 56, guide pillar; 57, worktable support plate; 58, electromagnet; 59, permanent magnet; 60, connecting plate; 61, line slideway; 62, guide rail slide block; 63, connector; 64, guide pin bushing; 65, horizontally-guided axle; 66, longitudinal rail fixed head; 67, cross slide way fixed head; 68, working plate; 69, longitudinal rail; 70, cross slide way 72, floor rails;
Detailed description of the invention
The present invention to be further described by specific embodiment below in conjunction with accompanying drawing.
As Fig. 1, shown in Fig. 2, a kind of have the microsecond delay servo-pressing machine accurately carrying out error compensation in real time, comprise fuselage 4, described fuselage 4 is provided with permanent magnet synchronous ac servomotor 1, described permanent magnet synchronous ac servomotor 1 is connected with planetary reducer 2, the control circuit of described permanent magnet synchronous ac servomotor 1 is connected with servo amplifier, servo amplifier is connected with host computer by serial line interface RS-232C, described planetary reducer 2 is connected with bent axle 5 by shaft coupling 3, described bent axle 5 is by rolling bearing system 7-1 and 7-2 support and connection and be fixed on fuselage 4, the throw portion of described bent axle 5 is connected with ball head connecting rod 6, the bulb part of described ball head connecting rod 6 is connected with slide body 8, described slide body is led by the slide block guide rail 36 of two groups of board-like roller chains of band and two groups of guide pillar 39 guide pin bushings 40.
The relative position that described slide body 8 pumps in process carry out tracing detection by grating displacement sensor 46 and Real-time Feedback to host computer, when needs are braked slide body 8, by serial line interface RS-232C, control instruction is conveyed to PLC by host computer, carry out communication by PLC and servo amplifier and complete braking procedure; The acceleration of slide body 8 and moderating process also can process realize thus.
On fuselage 4 around described slide body 8, be fixed with four micrometric displacement grating sensor 9-1 all around, for detecting the minor variations of the displacement all around caused due to steering error of slide body 8; And Real-time Feedback is to host computer.
The travelling table 10 accurately carrying out error compensation is in real time fixed with in fuselage 4 bottom, described travelling table 10 outside comprises two servomotor 17-1 and 17-2, described servomotor is connected with leading screw 13-1 and 13-2 respectively by shaft coupling 18-1 with 18-2, feed screw nut 19-1 and 19-2 supporting with described leading screw 13-1 and 13-2 is connected with guide pin bushing fixed head 15 with soket head cap screw, described guide pin bushing fixed head 15 bottom is fixed with guide pin bushing, described guide pin bushing coordinates with the axis of guide 14, the motion of screw pair is led more accurately, the described axis of guide 14 is connected with bearings by stiff end supporting seat 16.
On fuselage 4 around described travelling table 10, be fixed with four micrometric displacement grating sensor 9-2 all around, for detecting and the compensation result of feedback operation platen 68.
As Fig. 3, shown in Fig. 4, working plate 68 is comprised in the inside of described travelling table 10, described working plate 68 coordinates with longitudinal rail 69 and carries out longitudinally guiding, described longitudinal rail 69 is fixed on transverse slider and holds concurrently longitudinal rail fixed head 66 upper surface, described longitudinal rail fixed head 66 coordinates with guide rail 70 and carries out laterally steering, described guide rail 70 is fixed on by soket head cap screw in the mounting groove of cross slide way fixed head 67, 6 permanent magnets 59 are fixed with at described cross slide way fixed head 67 lower surface, the power supply of described electromagnet 59 is connected with control circuit, described control circuit is connected with PLC, described PLC is connected with host computer by serial line interface RS-232C, the output of the power of different size is realized by controlling electric current, thus make working plate 68 and stable the moving up and down of other auxiliary function structural members.
As shown in Fig. 3, Fig. 4, Fig. 5, be provided with guide pillar 65 guide pin bushing 64 structure in the side of described working plate 68, each 4 covers in front and back, each 2 covers in left and right, carry out precision guiding to the motion all around of working plate 68.Be fixed with connector 63 in the surrounding of described working plate 68, described connector 63 is connected with connecting plate 60 with the form of guide runner, realizes described connecting plate 60 bottom and assists being synchronized with the movement up and down of guide frame and working plate 68.Line slideway 61 and guide rail slide block 62 is fixed with between described working plate 68 and connecting plate 60, respectively have a set of all around, what be connected with described connecting plate 60 has the floor rails 72 of carrying out horizontally-guided, and described floor rails 72 is packed in guide pin bushing fixed head 55 upper surface by soket head cap screw.When described working plate 68 carries out error compensation all around, under the cooperation of the guide frame that the guide frame that line slideway 61 and guide rail slide block 62 form forms with bottom surface horizontal guide rail at connecting plate 60, the flexible motion of working plate 68 can be ensured.
At described guide pin bushing fixed head 55, two groups of guide pillar 56 guide pin bushing 53 structures are installed, guide pillar is by stiff end supporting seat 54 support and connection, as shown in Figure 5,3 groups are respectively had at the fore-and-aft direction of described working plate 68, left and right directions respectively has 2 groups, and this structure is used for leading to moving up and down of working plate 68 under the drive of guide pin bushing fixed head 55.
In actual use procedure, driven by permanent magnet synchronous ac servomotor 1, after planetary reducer 2 speed change, be with dynamic crankshaft 5 to rotate by shaft coupling 3, when bent axle 5 rotates, drive slide body 8 to realize up and down reciprocatingly rectilinear motion by ball head connecting rod 6.The micrometric displacement that in the micrometric displacement all around that the steering error that slide body 8 produces when down stroke causes slide body 8 to produce and production process, mould produces, detected by 4 optical grating micro-displacement pickup 9-1 near slide body 8 position and carried out data acquisition by PLC, by fieldbus by the data Real-time Feedback that collects to host computer, the control instruction of correspondence is passed to PLC by host computer, servo amplifier is controlled by PLC, servomotor 17-1 and 17-2 is driven to complete accurate error compensation, the on-the-spot result compensated is detected by the micrometric displacement grating sensor 9-2 of four around travelling table 10 and is passed through fieldbus Real-time Feedback to host computer, whether host computer compensates according to feedback result error in judgement and completes, if error compensation terminates just to stop action immediately, wait for next working cycles, if do not complete, just the data that micro-displacement sensor 9-2 collects are passed to PLC, proceed the compensating movement of the corresponding margin of error.
The present invention can realize the electrodeless adjustment of slide body and any change of ram travel, to obtain excellent processing technology curve.
The present invention has the safety device such as safe grating, photoelectricity switch, can available protecting worker safety improve service life of equipment.
Above by reference to the accompanying drawings to invention has been exemplary description; the concrete realization of obvious the present invention is not subject to the restrictions described above; as long as have employed method of the present invention design and technical scheme carry out various improvement; or without improvement, design of the present invention and technical scheme to be directly applied to other occasions, all in protection scope of the present invention.
Claims (8)
1. one kind has the microsecond delay servo-pressing machine accurately carrying out error compensation in real time, comprise fuselage (4), described fuselage (4) is provided with permanent magnet synchronous ac servomotor (1), described permanent magnet synchronous ac servomotor (1) is connected with planetary reducer (2), the control circuit of described permanent magnet synchronous ac servomotor (1) is connected with servo amplifier, servo amplifier is connected with host computer by serial line interface RS-232C, described planetary reducer (2) is connected with bent axle (5) by shaft coupling (3), described bent axle (5) is by rolling bearing system (7-1) and (7-2) support and connection and be fixed on fuselage (4), the throw portion of described bent axle (5) is connected with ball head connecting rod (6), the bulb part of described ball head connecting rod (6) is connected with slide body (8), described slide body is led by the slide block guide rail (36) of two groups of board-like roller chains of identical band and two groups of guide pillars (39) guide pin bushing (40).
2. microsecond delay servo-pressing machine according to claim 1, it is characterized in that: the relative position that described slide body (8) pumps in process carry out tracing detection by grating displacement sensor (46) and Real-time Feedback to host computer, when needs are braked slide body (8), by serial line interface RS-232C, control instruction is conveyed to PLC by host computer, communicated with servo amplifier by PLC, complete braking procedure; The acceleration of slide body (8) and moderating process also can process realize thus.
3. microsecond delay servo-pressing machine according to claim 1 or 2, it is characterized in that: on the fuselage (4) around described slide body (8), be fixed with four micrometric displacement grating sensors (9-1) all around, for detecting the minor variations of the displacement all around caused due to steering error of slide body (8); And Real-time Feedback is to host computer.
4. microsecond delay servo-pressing machine according to claim 1, it is characterized in that: be fixed with the travelling table (10) accurately carrying out error compensation in real time in fuselage (4) bottom, described travelling table (10) outside comprises two servomotors (17-1) and (17-2), described servomotor is connected with leading screw (13-1) and (13-2) with (18-2) respectively by shaft coupling (18-1), be connected with guide pin bushing fixed head (15) with soket head cap screw with described leading screw (13-1) and (13-2) supporting feed screw nut (19-1) and (19-2), described guide pin bushing fixed head (15) bottom is fixed with guide pin bushing, described guide pin bushing coordinates with the axis of guide (14), the motion of screw pair is led more accurately, the described axis of guide (14) is connected with bearings by stiff end supporting seat (16).
5. microsecond delay servo-pressing machine according to claim 4, it is characterized in that: on the fuselage (4) around described travelling table (10), be fixed with four micrometric displacement grating sensors (9-2) all around, for detecting and feeding back the compensation result of lower table plate (68).
6. microsecond delay servo-pressing machine according to claim 4, it is characterized in that: comprise working plate (68) in the inside of described travelling table (10), described working plate (68) coordinates with longitudinal rail (69) and carries out longitudinally guiding, described longitudinal rail (69) is fixed on transverse slider and holds concurrently longitudinal rail fixed head (66) upper surface, described transverse slider fixed guide fixed head (66) of holding concurrently coordinates with guide rail (70) and carries out laterally steering, described guide rail (70) is fixed on by soket head cap screw in the mounting groove of cross slide way fixed head (67), 6 permanent magnets (59) are fixed with at described cross slide way fixed head (67) lower surface, the power supply of described electromagnet (59) is connected with control circuit, described control circuit is connected with PLC, described PLC is connected with host computer by serial line interface RS-232C, the output of the power of different size is realized by controlling electric current, thus make working plate (68) and stable the moving up and down of other auxiliary function structural members.
7. microsecond delay servo-pressing machine according to claim 4 or 6, it is characterized in that: in the side of described working plate (68), guide pillar (65) guide pin bushing (64) structure is installed, each 4 covers in front and back, each 2 covers in left and right, carry out precision guiding to the motion all around of working plate (68); Connector (63) is fixed with in the surrounding of described working plate (68), described connector (63) connecting plate (60) connects with the form of guide runner, realizes described connecting plate (60) bottom and assists being synchronized with the movement up and down of guide frame and working plate (68); Hold concurrently between slider guide (60) be fixed with horizontal guide rail (61) and horizontally-guided slide block (62) at hold concurrently slider guide (68) and the connecting plate that vertically leads of described working plate, respectively have a set of all around, that holds concurrently that slider guide (60) is connected with described vertical guiding connecting plate has the floor rails (72) of carrying out horizontally-guided, and described floor rails (72) is packed in guide pin bushing fixed head (55) upper surface by soket head cap screw; When described working plate (68) carries out error compensation all around, the guide frame that horizontal guide rail (61) and horizontal slider guide (62) form vertical guiding connecting plate hold concurrently guide frame that slider guide (60) forms with bottom surface horizontal guide rail cooperation under, the flexible motion of working plate (68) can be ensured.
8. microsecond delay servo-pressing machine according to claim 7, it is characterized in that: two groups of guide pillar (56) guide pin bushing (53) structures are installed on described guide pin bushing fixed head (55), guide pillar is by stiff end supporting seat (54) support and connection, as shown in Figure 5,3 groups are respectively had at the fore-and-aft direction of described working plate (68), left and right directions respectively has 2 groups, and this structure is used for leading to moving up and down of working plate (68) under the drive of guide pin bushing fixed head (55).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310604334.5A CN104669672B (en) | 2013-11-26 | 2013-11-26 | A kind of microsecond delay servo-pressing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310604334.5A CN104669672B (en) | 2013-11-26 | 2013-11-26 | A kind of microsecond delay servo-pressing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104669672A true CN104669672A (en) | 2015-06-03 |
| CN104669672B CN104669672B (en) | 2017-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310604334.5A Expired - Fee Related CN104669672B (en) | 2013-11-26 | 2013-11-26 | A kind of microsecond delay servo-pressing machine |
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| Country | Link |
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| CN (1) | CN104669672B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108656605A (en) * | 2018-05-24 | 2018-10-16 | 西华大学 | A kind of axis oil press in length and breadth |
| CN110549668A (en) * | 2019-08-02 | 2019-12-10 | 江苏长沐智能装备有限公司 | Desktop-level high-speed high-precision miniature press machine for automatic production |
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| CN200988312Y (en) * | 2006-11-10 | 2007-12-12 | 佛山市顺德区荣兴锻压设备有限公司 | Real time controlled hydraulic press |
| CN201154548Y (en) * | 2008-02-02 | 2008-11-26 | 广东宏兴机械有限公司 | Multifunction servo crank press |
| US20080307982A1 (en) * | 2007-06-12 | 2008-12-18 | Komatsu Ltd. | Slide position sensor and press machine |
| CN102336030A (en) * | 2011-10-13 | 2012-02-01 | 湖州机床厂有限公司 | Sliding block deviation correction mechanism of hydraulic press |
| CN102909883A (en) * | 2012-09-28 | 2013-02-06 | 青岛青锻锻压机械有限公司 | System for measuring and displaying motion state of press slide |
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2013
- 2013-11-26 CN CN201310604334.5A patent/CN104669672B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN200988312Y (en) * | 2006-11-10 | 2007-12-12 | 佛山市顺德区荣兴锻压设备有限公司 | Real time controlled hydraulic press |
| US20080307982A1 (en) * | 2007-06-12 | 2008-12-18 | Komatsu Ltd. | Slide position sensor and press machine |
| CN201154548Y (en) * | 2008-02-02 | 2008-11-26 | 广东宏兴机械有限公司 | Multifunction servo crank press |
| CN102336030A (en) * | 2011-10-13 | 2012-02-01 | 湖州机床厂有限公司 | Sliding block deviation correction mechanism of hydraulic press |
| CN102909883A (en) * | 2012-09-28 | 2013-02-06 | 青岛青锻锻压机械有限公司 | System for measuring and displaying motion state of press slide |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108656605A (en) * | 2018-05-24 | 2018-10-16 | 西华大学 | A kind of axis oil press in length and breadth |
| CN110549668A (en) * | 2019-08-02 | 2019-12-10 | 江苏长沐智能装备有限公司 | Desktop-level high-speed high-precision miniature press machine for automatic production |
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| CN104669672B (en) | 2017-07-04 |
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Granted publication date: 20170704 Termination date: 20171126 |