CN102700158A - Compressive prestressing machine for arc spring - Google Patents
Compressive prestressing machine for arc spring Download PDFInfo
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- CN102700158A CN102700158A CN2011104024336A CN201110402433A CN102700158A CN 102700158 A CN102700158 A CN 102700158A CN 2011104024336 A CN2011104024336 A CN 2011104024336A CN 201110402433 A CN201110402433 A CN 201110402433A CN 102700158 A CN102700158 A CN 102700158A
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Abstract
The invention relates to a compressive prestressing machine for machining an arc spring. The compressive prestressing machine for the arc spring comprises a frame, wherein a worktable and a control system are arranged on the frame; a separated compressive prestressing mold and a spring transport device are controlled by the control system; the separated compressive prestressing mold comprises an outer mold, an inner mold and a driving part; the driving part drives the outer mold and the inner mold to assemble for compressive prestressing; an arc mold cavity is formed on the outer mold; an arc pressing mold is arranged on the inner mold; the spring transport device comprises a transport rail and a transport clamp; the transport clamp moves on the transport rail; the spring transport device is connected with a spring feeding device; and the separated compressive prestressing mold is connected with a discharging box. The compressive prestressing machine for the arc spring is good in compressive effect of the arc spring, easy to operate, high in automaticity and high-efficiency; and the technical problem that the arc spring is not effectively compressed in the prior art is solved.
Description
Technical field
The present invention relates to a kind of process equipment of arc spring, relate in particular to and a kind ofly suppress processor what processing was used during arc spring.
Background technology
The widespread usage of spring makes the structure of spring present variation, wherein uses a kind of arc spring in a large number in the automobile double mass flywheel.Because structurally there are very big difference in arc spring and common cylinder type spiral compression spring, so suppressing in the production technology handled or the used production equipment of processing of halting also is very different, domestic still blank out.In disclosed file; The treatment facility of suppressing for spring refers to cylindrical spring more; As disclosed in the Chinese patent file: " spring power press (CN101966758A) ", adopt by suppressing the mechanism of suppressing that the head-pressure-regulating device-arm of force-location adjusting device-mobile jib-universal joint-connecting rod-main eccentric wheel-main shaft forms; By the toggle mechanism that main shaft-bevel reduction gear set-countershaft-secondary eccentric wheel-driving lever-shifting block-handsetting gear-station axle-work station disk-the station hole is formed; To main shaft power is provided by motor-reductor.This structure is the improvement of suppressing to present cylindrical spring, for arc spring and inapplicable.
Summary of the invention
The invention provides and a kind ofly suppress effectively, simple to operate for arc spring, automaticity is high, and the arc spring that efficient is high is suppressed processor; Solved the technical problem that the carrying out to there not being arc spring that exist in the prior art effectively suppressed.
The present invention also provide simultaneously a kind of reasonable in design, can be under heating condition automatic grabbing workpiece, deliver to a kind of device of suppressing processing in the pressing mold automatically; Solved the spring that exists in the prior art and can not under heating condition, carry out next and suppress operation, activity time is long, the technical problem that efficient is not high enough.
Above-mentioned technical problem of the present invention solves through following technical proposals: a kind of arc spring is suppressed processor; Comprise frame; On frame, be provided with workbench and control system; Be provided with separate type in a side of workbench and suppress mould, be provided with the spring conveyer, suppress mould and spring conveyer by control system control separate type at the opposite side of workbench; Described separate type is suppressed mould and is comprised external mold, internal mold and driver part, and driver part drives external mold and the internal mold matched moulds is suppressed, and on external mold, is provided with the die cavity of arc, and internal mold is provided with the arc pressing mold; Described spring conveyer comprises and transports track and transport anchor clamps, transports anchor clamps and moves transporting on the track.The control system transfers adjustment through the control panel that is arranged on the frame to each parts on the workbench; Control system control spring conveyer is clamped the spring on the spring feed arrangement and is transported separate type to and suppress on the mould; Controlling separate type then suppresses mould the house type spring is suppressed; External mold and the internal mold of suppressing mould separate, and separate type is suppressed mould and linked to each other with feed box, and arc spring falls into to accomplish in the feed box suppresses operation; The driver part that separate type is suppressed mould can be pneumatic, motor-driven or all the other known modes.Separate type is suppressed has the die cavity that adapts to arc spring in the mould, conveyer is transported to the mould place with spring spring is put into die cavity, and the shape and the spring of die cavity are adaptive, have improved and have suppressed molding effect.The automaticity of entire equipment is high, and efficient is high, suppresses effective.
The spring conveyer links to each other with the spring feed arrangement, and separate type is suppressed mould and linked to each other with feed box.The charging and the discharging that guarantee spring are convenient.
The spring conveyer can be two-dimensional device, and in the horizontal direction and movement in vertical direction, horizontal direction and vertical direction effective travel guarantee to grab spring all greater than 500mm, and can spring be delivered to and suppress in the mould.Also can be the space multistory device, the configuration optical recognition system can be discerned spring concrete position on guipure automatically, any direction that spring is put, and regulate automatically and grasp angle and position.As preferably; The described track that transports is a two-dimensional orbit, transports track and comprises horizontal guide rail and vertical guide rail, and the described anchor clamps that transport are positioned on the vertical supporting plate; Vertical supporting plate is positioned on the horizontal supporting plate; Horizontal supporting plate is provided with vertical guide rail, on frame, is provided with horizontal guide rail, and horizontal supporting plate is positioned on the horizontal guide rail.Two-dimensional orbit, simple in structure, handled easily, space requirement is little, can be transported to separate type to arc spring by the tempering electric furnace of net belt type and suppress in the mould, can in level and vertical direction, adjust the position.
As more preferably; The two row of horizontal supporting seats that are parallel to each other are installed on frame; On the horizontal support seat, be fixed with two horizontal guide rails that are parallel to each other, the horizontal rack parallel with horizontal guide rail is installed on frame, below horizontal supporting plate, be fixed with motor; Motor output shaft is connected with gear, gear and horizontal rack engaged transmission; On horizontal supporting plate, be provided with the vertical guide rail that is parallel to each other, the vertical tooth rack parallel with vertical guide rail is installed on horizontal supporting plate, on vertical supporting plate, be fixed with motor, motor output shaft is connected with gear, gear and vertical tooth rack engaged transmission.Fit system through gear and tooth bar comes drive mechanism simple, and is easy for installation.Thereby motor connects the reduction box driven wheel to rotate, and according to the movement travel of control default, on horizontal guide rail and vertical guide rail, moves, and arc spring is transported to separate type suppresses the mould place.
Transporting anchor clamps can be that manipulator also can be that magnetic force is inhaled frame modes such as pawl; As preferably; The described anchor clamps that transport comprise the cylinder that is fixed on the vertical supporting plate, and the cylinder axis of cylinder is connected with through boatswain chair and is connected with two groups of supporting rods that are parallel to each other, and an end of two groups of supporting rods links to each other with grip slipper; Grip slipper is fixed on the vertical supporting plate, and two groups of supporting rods are hinged through pull bar.Cylinder axis drives moving up and down of boatswain chair, makes the variable in distance of two groups of supporting rods upper ends, because the middle part of supporting rod is hinged, and the operating principle of similar scissors, therefore the lower end of supporting rod can clamp or loosen, thereby realizes the clamping of spring or loosen.Transport the simple in structure of anchor clamps, easily operation.
As more preferably; Every group of supporting rod comprises mutual two supporting rods, and same group of two interior supporting rods link to each other through connection strap, below one group of supporting rod, are fixed with one group of clamping pin; Every group of clamping pin links to each other with supporting rod through an arc; Described clamping pin is cylindric, and the diameter of columned clamping pin is dwindled to the centre by two ends gradually, and the cross section of described boatswain chair is trapezoidal.The shape of arc is identical with the shape of arc spring, when the clamping arc spring, can better clamp like this.Boatswain chair is up-small and down-big truncated conical shape, and when boatswain chair moved upward, the distance between the supporting rod of boatswain chair both sides became big, so the distance of supporting rod lower end diminishes spring is clamped.Adopt four clamping pin clamping stabilities good, can steadily spring be clamped, simultaneously, the middle part of clamping pin is an arc, contacts with the arcwall face of spring, improves contact area, thereby improves grip.
The pay-off of spring can be belt transmission, perhaps hopper etc.; As preferably, the spring conveyer links to each other with the spring feed arrangement, and described spring feed arrangement is positioned at spring conveyer below; Comprise transport tape and position feedback part; Transport tape is the output guipure of the arc spring tempering furnace of suppressing the processor front side, and the position feedback part is positioned on the output guipure of tempering furnace, and the position feedback part is positioned at the revolution side of transport tape.As more preferably; The position feedback part comprises two contact induction devices and the guided plate that is positioned on the output guipure, and guided plate is positioned at the both sides of contact induction device, and two guided plates are " eight " word and arrange; Two contact induction devices form a plane, and this plane is vertical with the spring direction of motion.One group of inductor is set above guipure; This induced signal is connected with tempering furnace with power press simultaneously; When sensing spring to the end during assigned address; The control system notifies the tempering furnace guipure to halt on the one hand, and it is motionless to make spring rest on assigned address, notifies the spring conveyer to carry out spring on the other hand and grasps.Be connected with net belt type tempering electric furnace, after the arc spring heating, carry out under the heat-retaining condition arc spring being carried out heat and suppress.Reach and stablize the arc spring size, reduce the effect of the attenuation rate in the course of work.The height of frame is adjustable, so that be connected with the guipure tempering electric furnace of differing heights.
As preferably, described separate type is suppressed mould and is comprised the two groups of rail support seats that are parallel to each other that are fixed on the workbench, on the rail support seat, guide rail is installed; On guide rail, be provided with sliding panel; On sliding panel, be provided with external mold, be connected with the driving cylinder on the sliding panel, the direction of motion of sliding panel is parallel with the horizontal guide rail of spring conveyer; Side at external mold is provided with internal mold, and the internal mold below is provided with electric rotating machine.Suppressing mould is that two separable arc moulds are formed, and its arc is special according to the radius of curvature of spring, and the arc radius of external mold is consistent with the arc radius of spring, and the arc radius of internal mold is less than the arc radius of spring.Two suppress mould and close up after, the middle deep-slotted chip breaker width and the degree of depth are all greater than the about 2-5mm of the external diameter of arc spring.Internal mold is rotatable pressing mold, under the driving of servomotor, can compress, and can keep the regular hour at specified angle by the compression number of times of setting, compression angle arc spring.
As preferably, described external mold is curved, and external mold forms a cascaded surface towards internal mold; Cascaded surface forms the die cavity of an arc, is provided with locating piece at arc one initiating terminal of the die cavity of arc, and internal mold is rounded; On internal mold, be provided with positioning protrusion, behind internal mold and external mold matched moulds, locating piece and positioning convex are positioned at the two ends of arc spring; The thickness of internal mold is identical with the thickness of die cavity, on internal mold, is provided with cover plate, and it is fan-shaped that cover plate is; The arc of cover plate is positioned at outside the internal mold, and the distance between the arc of cover plate and the outer rim of internal mold is greater than the diameter of waiting to suppress arc spring.External mold moves with internal mold and closes up, and forms a deep-slotted chip breaker that coincide with the spring external diameter.The cover plate of internal mold covers spring, prevents to be extruded when spring from suppressing die cavity.Above suppressing the mould internal mold cover plate is arranged, when two close up after, cover plate covers spring, prevents that spring from jumping out the arc die cavity in compression process.Locating piece on the die cavity and the positioning convex on the inner membrance can better be fixed on the cover plate on the two ends secure fit internal mold of spring in the die cavity spring, adopt then and implement to suppress moulding behind internal mold and the external mold matched moulds.
Therefore, arc spring of the present invention is suppressed processor and is possessed following advantage: 1, the die cavity of arc is set on external mold, more well accomplishes the technology of suppressing of arc spring behind the internal mold external mold matched moulds; 2, can be connected with net belt type tempering electric furnace, after the arc spring heating, carry out under the heat-retaining condition arc spring being carried out heat and suppress.Reach and stablize the arc spring size, reduce the effect of the attenuation rate in the course of work; 3, through the action of control system each parts of control, automaticity is high, can effectively raise the efficiency.
Description of drawings
Fig. 1 is the overall schematic that spring of the present invention is suppressed processor.
The vertical view at the net belt type tempering electric furnace place of the spring feed arrangement in Fig. 2 Fig. 1.
The sketch map of the spring conveyer in Fig. 3 Fig. 1.
Fig. 4 is the right view of Fig. 3.
Fig. 5 is the interior supporting rod of Fig. 3 and the position enlarged diagram of spring.
Fig. 6 is the sketch map that separate type is suppressed mould.
Fig. 7 is the vertical view of Fig. 6.
The specific embodiment
Through embodiment, do further bright specifically below to the technical scheme of invention.
Embodiment:
As shown in Figure 1, a kind of arc spring is suppressed processor, comprises frame 1, in a side of frame 1 control panel 2 is installed, and control panel 2 is connecting control system (not drawing among the figure).Main part in frame 1 has a workbench 3; There is a separate type to suppress mould 4 at workbench 3 near control panel 2 one sides; Opposite side at workbench 3 has a spring conveyer 5, suppresses mould 4 and spring conveyer 5 by control system control separate type, separate type suppress mould 4 below be connected with feed box 6; When suppress in separate type in mould 4 tools accomplish suppress after, spring falls in the feed box 6.In the front side of spring conveyer 5 is the output guipure 7 of tempering furnace; The output guipure 7 and the workbench 3 of hot air circulation electric furnace are positioned on the same plane; The revolution side and the workbench of output guipure 7 join, and on the revolution side of output guipure 7, are provided with position feedback part 8 and guided plate 22, and the position feedback part is two contact induction devices that are positioned on the same plane; Guided plate 22 is two; Guided plate 22 is positioned at the both sides of position feedback part, and an end and the position feedback part of guided plate 22 join, and two guided plates are " eight " word and arrange.The incline direction of guided plate make between two guided plates distance by tempering furnace one side to output guipure revolution one side more and more littler (as shown in Figure 2).A kind of arc spring 9 of concrete size is successively placed on the tempering furnace guipure according to unified direction; When spring follows guipure to enter into certain particular location; Spring is blocked and can not move on by the contact induction device; The inductor on guipure both sides is all sensed spring and has been arrived assigned address at this moment, and inductor is given the control system with signal feedback, and control notifications spring conveyer can grasp spring.Spring conveyer 5 extracting arc springs 9 are sent to separate type and suppress in the arc die cavity of mould 4, and control system control separate type is suppressed the external mold and the internal mold matched moulds of mould 4, accomplishes suppressing arc spring 9.
Shown in Fig. 3 and 4; Spring conveyer 5 comprises and transports track and transporting the anchor clamps that transport that move on the track; Transport track and comprise horizontal guide rail 10 and vertical guide rail 11; Horizontal guide rail 10 is positioned on the frame plane vertical with workbench, and horizontal guide rail 10 is parallel with workbench 3, and vertical guide rail 11 is vertical with horizontal guide rail 10.
The two row of horizontal supporting seats 12 that are parallel to each other are installed on frame 1; On horizontal support seat 12, be fixed with two horizontal guide rails 10 that are parallel to each other; The horizontal rack 14 parallel with horizontal guide rail 10 is installed on frame 1; On horizontal guide rail 10, be connected with horizontal supporting plate 15, horizontal supporting plate 15 belows are equipped with lug 13, and lug 13 is socketed on the horizontal guide rail 10 horizontal supporting plate is formed support.Below horizontal supporting plate 15, be fixed with horizontal drive motor 16, motor output shaft is connected with horizontal gear 17, horizontal gear 17 and horizontal rack 14 engaged transmission; The vertical guide rail 18 that is parallel to each other arranged in that the upper surface of horizontal supporting plate 15 is one-body molded; Be connected with vertical supporting plate 20 on the vertical guide rail 18; The vertical tooth rack 19 parallel with vertical guide rail 11 is installed on horizontal supporting plate 15; Bottom surface at vertical supporting plate 20 is fixed with vertical drive motor 18, and motor output shaft is connected with vertical gear 21, vertical gear 21 and vertical tooth rack 19 engaged transmission.Upper surface at vertical supporting plate 20 is fixed with cylinder 23; The cylinder axis of cylinder 23 is connected with through round table-like boatswain chair 24 and is connected with two groups of supporting rods that are parallel to each other; One end of two groups of supporting rods links to each other with grip slipper 26; Grip slipper 26 is fixed on the vertical supporting plate 20, and two groups of supporting rods are hinged through pull bar.Every group of supporting rod comprises mutual two supporting rods 25, and same group of two interior supporting rods 25 link to each other through connection strap 27, below connection strap 27, are fixed with an arc 28, respectively are fixed with a clamping pin 29 at the two ends of arc 28.Two arcs 28 of two groups of connection strap 27 belows are parallel to each other, and the arc-shaped bend angle of arc 28 is identical with arc spring 9.Clamping pin 29 is hourglass shape, and the diameter of clamping pin 29 is dwindled to the centre by two ends gradually, and the external peripheral surface of clamping pin 29 is an arcwall face, can cooperate with the outer surface of arc spring 9 like this, improves grip (as shown in Figure 5).
Shown in Fig. 6 and 7, separate type is suppressed external mold 31, the cylinder 32 that drives external mold that mould comprises circular internal mold 30, arc, the members such as electric rotating machine (not shown) that drive the internal mold rotation.On workbench, be fixed with 3 two groups of rail support seats 33 being parallel to each other; Mould guide rail 34 is installed on rail support seat 33; On mould guide rail 34, be socketed with sliding panel 35, on sliding panel 35, be fixed with external mold 31, be connected with on the sliding panel 35 and drive cylinder 32; Drive cylinder 32 and drive sliding panel 35 side-to-side movement on mould guide rail 34, on the mould guide rail, move thereby drive external mold 31.The direction of motion of sliding panel 35 is parallel with the horizontal guide rail 10 of spring conveyer, is provided with internal mold in a side of external mold 31, and internal mold 30 belows are provided with electric rotating machine 36, and the rotating shaft 37 of the output shaft of electric rotating machine and internal mold below joins.
During work; A kind of arc spring of concrete size is successively placed on the tempering furnace guipure according to unified direction; When spring follows guipure to enter into certain particular location; Have spring all to be sensed spring by the inductor on guipure both sides in the guipure exit and arrived assigned address, inductor is given the control system with signal feedback, and control notifications clamping pin can grasp spring.
The clamping pin moves to the relevant position of guipure on vertical guide rail and horizontal guide rail under the commander of control system, spring is picked up clamped, and carry spring in the die cavity of the external mold of suppressing mould.
External mold moves with internal mold and closes up, and forms a deep-slotted chip breaker that coincide with the spring external diameter.The cover plate of internal mold covers spring, prevents to be extruded when spring from suppressing die cavity.
Servomotor drives the briquetting rotation on the internal mold, and the compression arc spring is depressed into arc spring specified angle and keeps certain hour.External mold is backed out, and drives spring and withdraws from, and spring comes off under the situation of deadweight automatically, falls in the blanking box through slideway.
Claims (9)
1. an arc spring is suppressed processor; It is characterized in that: comprise frame; On frame, be provided with workbench and control system; Be provided with separate type in a side of workbench and suppress mould, be provided with the spring conveyer, suppress mould and spring conveyer by control system control separate type at the opposite side of workbench; Described separate type is suppressed mould and is comprised external mold, internal mold and driver part, and driver part drives external mold and the internal mold matched moulds is suppressed, and on external mold, is provided with the die cavity of arc, and internal mold is provided with the arc pressing mold; Described spring conveyer comprises and transports track and transport anchor clamps, transports anchor clamps and moves transporting on the track.
2. arc spring according to claim 1 is suppressed processor; It is characterized in that: the described track that transports is a two-dimensional orbit, transports track and comprises horizontal guide rail and vertical guide rail, and the described anchor clamps that transport are positioned on the vertical supporting plate; Vertical supporting plate is positioned on the horizontal supporting plate; Horizontal supporting plate is provided with vertical guide rail, on frame, is provided with horizontal guide rail, and horizontal supporting plate is positioned on the horizontal guide rail.
3. arc spring according to claim 2 is suppressed processor; It is characterized in that: the two row of horizontal supporting seats that are parallel to each other are installed on frame; On the horizontal support seat, be fixed with two horizontal guide rails that are parallel to each other, the horizontal rack parallel with horizontal guide rail is installed on frame, below horizontal supporting plate, be fixed with motor; Motor output shaft is connected with gear, gear and horizontal rack engaged transmission; On horizontal supporting plate, be provided with the vertical guide rail that is parallel to each other, the vertical tooth rack parallel with vertical guide rail is installed on horizontal supporting plate, on vertical supporting plate, be fixed with motor, motor output shaft is connected with gear, gear and vertical tooth rack engaged transmission.
4. suppress processor according to claim 1 or 2 or 3 described arc springs; It is characterized in that: the described anchor clamps that transport comprise the cylinder that is fixed on the vertical supporting plate; The cylinder axis of cylinder is connected with through boatswain chair and is connected with two groups of supporting rods that are parallel to each other; One end of two groups of supporting rods links to each other with grip slipper, and grip slipper is fixed on the vertical supporting plate, and two groups of supporting rods are hinged through pull bar.
5. arc spring according to claim 4 is suppressed processor; It is characterized in that: every group of supporting rod comprises mutual two supporting rods, and same group of two interior supporting rods link to each other through connection strap, below one group of supporting rod, are fixed with one group of clamping pin; Every group of clamping pin links to each other with supporting rod through an arc; Described clamping pin is cylindric, and the diameter of columned clamping pin is dwindled to the centre by two ends gradually, and the cross section of described boatswain chair is trapezoidal.
6. suppress processor according to claim 1 or 2 or 3 described arc springs; It is characterized in that: the spring conveyer links to each other with the spring feed arrangement; Described spring feed arrangement is positioned at spring conveyer below, comprises transport tape and position feedback part, and transport tape is the output guipure of the arc spring tempering furnace of suppressing the processor front side; The position feedback part is positioned on the output guipure of tempering furnace, and the position feedback part is positioned at the revolution side of transport tape.
7. arc spring according to claim 6 is suppressed processor; It is characterized in that: described position feedback part comprises two contact induction devices and the guided plate that is positioned on the output guipure; Guided plate is positioned at the both sides of contact induction device; Two guided plates are " eight " word arranges that two contact induction devices form a plane, and this plane is vertical with the spring direction of motion.
8. suppress processor according to claim 1 or 2 or 3 described arc springs, it is characterized in that: described separate type is suppressed mould and is comprised the two groups of rail support seats that are parallel to each other that are fixed on the workbench, on the rail support seat, guide rail is installed; On guide rail, be provided with sliding panel; On sliding panel, be provided with external mold, be connected with the driving cylinder on the sliding panel, the direction of motion of sliding panel is parallel with the horizontal guide rail of spring conveyer; Side at external mold is provided with internal mold, and the internal mold below is provided with electric rotating machine.
9. suppress processor according to claim 1 or 2 or 3 described arc springs, it is characterized in that: described external mold is curved, and external mold forms a cascaded surface towards internal mold; Cascaded surface forms the die cavity of an arc, is provided with locating piece at arc one initiating terminal of the die cavity of arc, and internal mold is rounded; On internal mold, be provided with positioning protrusion, behind internal mold and external mold matched moulds, locating piece and positioning convex are positioned at the two ends of arc spring; The thickness of internal mold is identical with the thickness of die cavity, on internal mold, is provided with cover plate, and it is fan-shaped that cover plate is; The arc of cover plate is positioned at outside the internal mold, and the distance between the arc of cover plate and the outer rim of internal mold is greater than the diameter of waiting to suppress arc spring.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110402433.6A CN102700158B (en) | 2011-12-07 | 2011-12-07 | Compressive prestressing machine for arc spring |
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|---|---|---|---|
| CN201110402433.6A CN102700158B (en) | 2011-12-07 | 2011-12-07 | Compressive prestressing machine for arc spring |
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| CN102700158A true CN102700158A (en) | 2012-10-03 |
| CN102700158B CN102700158B (en) | 2014-08-20 |
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| CN103407186A (en) * | 2013-07-31 | 2013-11-27 | 郑州市旭祥砂轮有限公司 | Spring prestressing machine |
| CN110052816A (en) * | 2019-05-17 | 2019-07-26 | 杭州富春弹簧有限公司 | Arc spring automatic press mounting device |
| CN114505525A (en) * | 2022-03-07 | 2022-05-17 | 黄河水利职业技术学院 | Machining of mechanical die is with plate shearing machine that has anti-skidding structure |
| CN115181838A (en) * | 2022-07-20 | 2022-10-14 | 上海太同弹簧有限公司 | Continuous spring forced compression equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110052816B (en) * | 2019-05-17 | 2023-10-31 | 杭州富春弹簧有限公司 | Automatic press-fitting device for arc spring |
| CN114505525A (en) * | 2022-03-07 | 2022-05-17 | 黄河水利职业技术学院 | Machining of mechanical die is with plate shearing machine that has anti-skidding structure |
| CN114505525B (en) * | 2022-03-07 | 2023-09-26 | 黄河水利职业技术学院 | Plate shearing machine with anti-slip structure for machining mechanical die |
| CN115181838A (en) * | 2022-07-20 | 2022-10-14 | 上海太同弹簧有限公司 | Continuous spring forced compression equipment |
| CN115181838B (en) * | 2022-07-20 | 2023-02-07 | 上海太同弹簧有限公司 | Continuous type spring forced compression equipment |
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| CN102700158B (en) | 2014-08-20 |
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