CN110026460A

CN110026460A - Dental chair headlamp annular rim U-shaped semi-finished product punching press symmetrically guarantees device

Info

Publication number: CN110026460A
Application number: CN201910422181.XA
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-21
Filing date: 2019-05-21
Publication date: 2019-07-19

Abstract

The invention belongs to Medical Devices manufacturing technology field, it is related to a kind of dental chair headlamp annular rim U-shaped semi-finished product punching press and symmetrically guarantees device.Three flow divider-combiners make horizontal hydraulic pressure cylinder component one, swing arm unit one and hold down assembly one combination and horizontal hydraulic pressure cylinder component two, swing arm unit two and hold down assembly two combined movement position bilateral symmetry.Position three position four-way electromagnetic valve changes to middle position in two H-types when upper mold will bear against in rectangular steel plates, and horizontal hydraulic cylinder one, horizontal hydraulic cylinder two, oscillating motor one and oscillating motor two are in quick condition simultaneously.Upper mold continues punching press, and the center of rectangular steel plates is pressed, and the two sides of rectangular steel plates are opposite with the stupefied side of rounding respectively to be slided, and the both ends of rectangular steel plates are upturned, and the U-shaped semi-finished product of formation are also the full symmetric U-shape in left and right.The present invention rectifies a deviation to rectangular steel plates in U-shaped semi-finished product manufacturing process, ensures that two side erection parts height are equal, improves yield rate, reduces cost of goods manufactured.

Description

Dental chair headlamp annular rim U-shaped semi-finished product punching press symmetrically guarantees device

Technical field

The invention belongs to Medical Devices manufacturing technology fields, are related to a kind of manufacturing equipment of dental chair components, tool Body is related to a kind of dental chair headlamp annular rim U-shaped semi-finished product punching press and symmetrically guarantees device.

Background technique

There is an annular rim inside the Illumiuating lamp socket being equipped on dental chair.Most traditional production method is by hand It is enclosed to form an annulus, production efficiency is low, and roundness tolerance is relatively low, the poor quality of product.With automatic chemical industry The development of industry production has ready conditions now and makes a set of automated production equipment by its compression moulding, for example, the first procedure is former Material rectangular steel plate is pressed into U-shaped semi-finished product, and U-shaped semi-finished product include the side erection part of bottom half-round and two sides, second operation work The side erection part of two sides is pressed again once at an annulus, finally again being welded together into an annulus to both ends together.

The stamping die of U-shaped semi-finished product, including lower die holder and upper mold have a upper locating slot, upper locating slot on lower die holder Depth be equal to the thickness of rectangular steel plates, the length and width of upper locating slot is respectively equal to the length and width of rectangular steel plates, on The middle part of locating slot is equipped with semicircle groove, and the radius of semicircle groove is equal to the outer radius of U-shaped semi-finished product bottom half-round, upper locating slot It is the stupefied side of rounding with semicircle groove adjacent；Upper mold be it is semicircle, upper mold it is semicircle downward, positioned at semicircle groove just on Side, the semicircular radius of upper mold are equal to the inside radius of U-shaped semi-finished product bottom half-round.At work, it is upper fixed rectangular steel plates to be put into In the slot of position, upper mold is pressed downward rectangular steel plates, and rectangular steel plates, which are bent, to be become arc-shaped and be embedded into semicircle groove, rectangular steel plates Both ends do not become the side erection part that arc-shaped part becomes two sides naturally, and rectangular steel plates become U-shaped semi-finished product, U-shaped The interior semicircle cambered surface of semi-finished product bottom half-round and the semicircle of upper mold match, the outer semicircle cambered surface of U-shaped semi-finished product bottom half-round It matches with the semicircle groove of lower die holder.

However, have relative friction between rectangular steel plates and two stupefied sides of rounding in the above-mentioned course of work and move, two The speed and distance of position relative motion might not be equal, eventually result in two different height of side erection part, and difference in height is big It is slight greatly also not know, circular ring shape, which is pressed into, to next process causes difficulty.

Summary of the invention

It is an object of the invention in place of improving the deficiencies in the prior art, provide it is a kind of can effectively to rectangular steel plates correction, Ensure that two equal dental chair headlamp annular rim U-shaped semi-finished product punching presses of side erection part height symmetrically guarantee device.

The present invention is achieved through the following technical solutions:

A kind of dental chair irradiation light annular rim U-shaped semi-finished product punching press symmetrically guarantees device, including lower mold assemblies and upper mold, Lower mold assemblies include lower die holder, there is a upper locating slot on lower die holder, and depth, the length and width of upper locating slot are respectively equal to square The thickness of shape steel plate, length and width, the middle part of upper locating slot are equipped with semicircle groove, the radius of semicircle groove be equal to U-shaped half at The outer radius of product bottom half-round, upper locating slot and semicircle groove adjacent are the stupefied sides of rounding；Upper mold is semicircle, the semicircle of upper mold Downward, positioned at the surface of semicircle groove, the semicircular radius of upper mold is equal to the inside radius of U-shaped semi-finished product bottom half-round to shape；

The outer radius of U-shaped semi-finished product bottom half-round refers to the radius of U-shaped semi-finished product bottom half-round external cylindrical surface, U-shaped semi-finished product bottom The inside radius of half-round refers to the radius of U-shaped semi-finished product bottom half-round inner cylinder face；

Further include horizontal hydraulic pressure cylinder component one, horizontal hydraulic pressure cylinder component two, swing arm unit one, swing arm unit two, hold down assembly one, Hold down assembly two, rack, flow divider-combiner one, flow divider-combiner two, flow divider-combiner three, hydraulic oil source one, hydraulic oil source two, 3-position 4-way electricity in position in position three position four-way electromagnetic valve one, O-shaped middle position three position four-way electromagnetic valve two and H-type in hydraulic oil source three, H-type Magnet valve three；

Lower mold assemblies further include horizontal hydraulic cylinder pinch roller one, horizontal hydraulic cylinder pinch roller two, horizontal hydraulic cylinder end pin one and horizontal liquid Cylinder pressure end pin two；Horizontal hydraulic cylinder pinch roller one is connected among the rear portion of lower die holder by revolute pair, horizontal hydraulic cylinder pinch roller two The front of lower die holder, the axial line of horizontal hydraulic cylinder pinch roller one and the axle center of horizontal hydraulic cylinder pinch roller two are connected in by revolute pair Line is overlapped；Horizontal hydraulic cylinder end pin one is fixedly connected at the rear portion of lower die holder, and horizontal hydraulic cylinder end pin one is in horizontal hydraulic cylinder pressure The right of wheel one；Horizontal hydraulic cylinder end pin two is fixedly connected in the front of lower die holder, and horizontal hydraulic cylinder end pin two is in horizontal hydraulic pressure The left of cylinder pinch roller two；Swing arm connection holes one, swing arm are additionally provided in the rear portion of lower die holder, the surface of horizontal hydraulic cylinder pinch roller one Connection holes two are overlapped in the front of lower die holder, swing arm connection holes two and one center line of swing arm connection holes；In the left end, preceding of lower die holder The centre of upper locating slot is equipped with jaw slot one in rear direction, the centre of upper locating slot on the right end, front-rear direction of lower die holder Equipped with jaw slot two；

Horizontal hydraulic pressure cylinder component one includes horizontal hydraulic cylinder one and horizontal rack one；Horizontal hydraulic cylinder is first is that hydraulic with guide-bar Cylinder, horizontal hydraulic cylinder one include horizontal hydraulic pressure cylinder body one and horizontal hydraulic pressure cylinder piston rod one；Under horizontal hydraulic pressure cylinder component one is located at The rear portion of membrane module, the tail portion of horizontal hydraulic pressure cylinder body one and horizontal hydraulic cylinder end pin one are combined into hinge；Horizontal rack one and water The end of flat hydraulic cylinder piston rod one is fixedly connected, the gear teeth of horizontal rack one upward, lower part, that is, back of horizontal rack one Downward and lean against on horizontal hydraulic cylinder pinch roller one；Horizontal hydraulic pressure cylinder piston rod one drives horizontal rack one relative to horizontal hydraulic cylinder Body one does piston motion on left and right horizontal direction, and the back of horizontal rack one drives horizontal hydraulic cylinder pinch roller one to roll, i.e. water Sliding friction between the back and horizontal hydraulic cylinder pinch roller one of flat tooth item one, effectively reduces frictional force；

Horizontal hydraulic pressure cylinder component two includes horizontal hydraulic cylinder two and horizontal rack two；Horizontal hydraulic cylinder is second is that hydraulic with guide-bar Cylinder, horizontal hydraulic cylinder two include horizontal hydraulic pressure cylinder body two and horizontal hydraulic pressure cylinder piston rod two；Under horizontal hydraulic pressure cylinder component two is located at The front of membrane module, the tail portion of horizontal hydraulic pressure cylinder body two and horizontal hydraulic cylinder end pin two are combined into hinge；Horizontal rack two and water The end of flat hydraulic cylinder piston rod two is fixedly connected, the gear teeth of horizontal rack two upward, lower part, that is, back of horizontal rack two Downward and lean against on horizontal hydraulic cylinder pinch roller two；Horizontal hydraulic pressure cylinder piston rod two drives horizontal rack two relative to horizontal hydraulic cylinder Body two does piston motion on left and right horizontal direction, and the back of horizontal rack two drives horizontal hydraulic cylinder pinch roller two to roll, i.e. water Sliding friction between the back and horizontal hydraulic cylinder pinch roller two of flat tooth item two, effectively reduces frictional force；

Swing arm unit one includes swing arm one, coupling spindle one, fixed gear one, swinging axle one, wobble gear one；One end of swing arm one It is fixedly connected respectively with coupling spindle one with fixed gear one, coupling spindle one and swing arm connection holes one fix tooth with hinge is combined into Wheel one and horizontal rack one engage；Horizontal hydraulic cylinder pinch roller one can ensure that one correct engagement of fixed gear one and horizontal rack away from From；The other end and wobble gear one of swing arm one are fixedly connected with swinging axle one respectively；

Swing arm unit two includes swing arm two, coupling spindle two, fixed gear two, swinging axle two, wobble gear two；One end of swing arm two It is fixedly connected respectively with coupling spindle two with fixed gear two, coupling spindle two and swing arm connection holes two fix tooth with hinge is combined into Wheel two and horizontal rack two engage；Horizontal hydraulic cylinder pinch roller two can ensure that two correct engagement of fixed gear two and horizontal rack away from From；The other end and wobble gear two of swing arm two are fixedly connected with swinging axle two respectively；

One is held down assembly including compressing bracket one, compressing hydraulic pressure cylinder assembly one, oscillating motor component one and oscillating motor pressure Wheel one；

Bracket is compressed first is that L shape, compressing bracket one, there are two orthogonal sides, and first side of compression bracket one is perpendicular to connection The axial line of spindle one, first edge tail and coupling spindle one for compressing bracket one are connected by hinge, oscillating motor pinch roller One is connected with first edge tail for compressing bracket one by revolute pair, the axial line and oscillating motor pinch roller one of coupling spindle one Axial line it is parallel and be not overlapped；It compresses and is additionally provided with oscillating motor coupling spindle one on first side of bracket one；

Oscillating motor component one includes oscillating motor one and oscillating rack one；Oscillating motor is first is that hydraulic with guide-bar Cylinder；Oscillating motor one includes oscillating motor body one and oscillating motor piston rod one；Oscillating rack one and oscillating motor The end of piston rod one is fixedly connected；Oscillating motor piston rod one drives oscillating rack one to do relative to oscillating motor body one Piston motion, the direction for being oriented parallel to oscillating motor piston rod one and doing piston motion of oscillating rack one；Oscillating motor The tail portion of body one and oscillating motor coupling spindle one couple, and oscillating rack one and wobble gear one engage；The back of oscillating rack one Portion leans against on oscillating motor pinch roller one, and the back of oscillating rack one drives oscillating motor pinch roller one to roll, i.e. oscillating rack Rolling friction between one and oscillating motor pinch roller one can reduce frictional force, and oscillating motor pinch roller one is for ensuring to swing The distance of one correct engagement of rack gear one and wobble gear；

Second side for compressing bracket one is parallel to the axial line of coupling spindle one；Compressing hydraulic pressure cylinder assembly one includes compressing hydraulic cylinder One and pressure plate one；Hydraulic cylinder is compressed first is that with guide-bar hydraulic cylinder；Compressing hydraulic cylinder one includes compressing one He of hydraulic cylinder body Compress hydraulic cylinder piston rod one；There is the pressing groove one of a rectangle on pressure plate one；Pressure plate one is fixedly connected hydraulic in compression The end of cylinder piston rod one compresses hydraulic cylinder body one and is fixedly connected on second side for compressing bracket one, compresses hydraulic cylinder Piston rod one drives pressure plate one to do piston motion relative to hydraulic cylinder body one is compressed, and the opening direction of pressing groove one is parallel to The direction that hydraulic cylinder piston rod one does piston motion is compressed, the opening direction of pressing groove one is facing away from compression hydraulic cylinder body one；Pressure Tight plate one is aligned jaw slot one in the longitudinal direction；

Two are held down assembly including compressing bracket two, compressing hydraulic pressure cylinder assembly two, oscillating motor component two and oscillating motor pressure Wheel two；

Bracket is compressed second is that L shape, compressing bracket two, there are two orthogonal sides, and first side of compression bracket two is perpendicular to connection The axial line of spindle one, first edge tail and coupling spindle two for compressing bracket two are connected by hinge, oscillating motor pinch roller Two are connected with first edge tail for compressing bracket two by revolute pair, the axial line and oscillating motor pinch roller two of coupling spindle two Axial line it is parallel and be not overlapped；It compresses and is additionally provided with oscillating motor coupling spindle two on first side of bracket two；

Oscillating motor component two includes oscillating motor two and oscillating rack two；Oscillating motor is second is that hydraulic with guide-bar Cylinder；Oscillating motor two includes oscillating motor body two and oscillating motor piston rod two；Oscillating rack two and oscillating motor The end of piston rod two is fixedly connected；Oscillating motor piston rod two drives oscillating rack two to do relative to oscillating motor body two Piston motion, the direction for being oriented parallel to oscillating motor piston rod two and doing piston motion of oscillating rack two；Oscillating motor The tail portion of body two and oscillating motor coupling spindle two couple, and oscillating rack two and wobble gear two engage；The back of oscillating rack two Portion leans against on oscillating motor pinch roller two, and the back of oscillating rack two drives oscillating motor pinch roller two to roll, i.e. oscillating rack Rolling friction between two and oscillating motor pinch roller two can reduce frictional force, and oscillating motor pinch roller two is for ensuring to swing The distance of two correct engagement of rack gear two and wobble gear；

Second side for compressing bracket two is parallel to the axial line of coupling spindle one；Compressing hydraulic pressure cylinder assembly two includes compressing hydraulic cylinder Two and pressure plate two；Hydraulic cylinder is compressed second is that with guide-bar hydraulic cylinder；Compressing hydraulic cylinder two includes compressing two He of hydraulic cylinder body Compress hydraulic cylinder piston rod two；There is the pressing groove two of a rectangle on pressure plate two；Pressure plate two is fixedly connected hydraulic in compression The end of cylinder piston rod two compresses hydraulic cylinder body two and is fixedly connected on second side for compressing bracket two, compresses hydraulic cylinder Piston rod two drives pressure plate two to do piston motion relative to hydraulic cylinder body two is compressed, and the opening direction of pressing groove two is parallel to The direction that hydraulic cylinder piston rod two does piston motion is compressed, the opening direction of pressing groove two is facing away from compression hydraulic cylinder body two；Pressure Tight plate two is aligned jaw slot two in the longitudinal direction；

Flow divider-combiner one includes two working holes and a pressure port, and two working holes of flow divider-combiner one are to shunt respectively One A mouthfuls and one B mouthfuls of flow divider-combiner of combiner valve, a pressure port of flow divider-combiner one is one P mouthfuls of flow divider-combiner, horizontal liquid The rodless cavity of cylinder pressure one and one A mouthfuls of flow divider-combiner are connected by pipeline, the rodless cavity and flow distributing and collecting of horizontal hydraulic cylinder two One B mouthfuls of valve is connected by pipeline；The middle position slide valve function of position three position four-way electromagnetic valve one is H-type in H-type, position three in H-type Four way solenoid valve one includes two working holes, and two working holes of position three position four-way electromagnetic valve one are position three in H-type respectively in H-type The B mouth of position three position four-way electromagnetic valve one in the A mouth and H-type of position four-way solenoid valve one；Position three in one P mouthfuls of flow divider-combiner and H-type The A mouth of position four-way solenoid valve one is connected by pipeline, the rod chamber of horizontal hydraulic cylinder one and the rod chamber of horizontal hydraulic cylinder two The B mouth of position three position four-way electromagnetic valve one is connected simultaneously and in H-type；

Flow divider-combiner two includes two working holes and a pressure port, and two working holes of flow divider-combiner two are to shunt respectively Two A mouthfuls and two B mouthfuls of flow divider-combiner of combiner valve, a pressure port of flow divider-combiner two is two P mouthfuls of flow divider-combiner；In O-shaped Position three position four-way electromagnetic valve two middle position slide valve function be it is O-shaped, O-shaped middle position three position four-way electromagnetic valve two include two working holes, O In type two working holes of position three position four-way electromagnetic valve two be respectively O-shaped middle position three position four-way electromagnetic valve two A mouth and O-shaped middle position The B mouth of three position four-way electromagnetic valve two；Compress hydraulic cylinder one rodless cavity and two A mouthful of flow divider-combiner be connected by pipeline, pressure The rodless cavity of tight hydraulic cylinder two and two B mouthfuls of flow divider-combiner are connected by pipeline；Two P mouthfuls of flow divider-combiner and O-shaped middle position three The A mouth of position four-way solenoid valve two is connected by pipeline, is compressed the rod chamber of hydraulic cylinder one and is compressed the rod chamber of hydraulic cylinder two It is connected simultaneously with the B mouth of O-shaped middle position three position four-way electromagnetic valve two；

Flow divider-combiner three includes two working holes and a pressure port, and two working holes of flow divider-combiner three are to shunt respectively Three A mouthfuls and three B mouthfuls of flow divider-combiner of combiner valve, a pressure port of flow divider-combiner three is three P mouthfuls of flow divider-combiner；In H-type The middle position slide valve function of position three position four-way electromagnetic valve three is H-type, and position three position four-way electromagnetic valve three includes two working holes, H in H-type Two working holes of position three position four-way electromagnetic valve three are position in the A mouth and H-type of position three position four-way electromagnetic valve three in H-type respectively in type The B mouth of three position four-way electromagnetic valve three；The rodless cavity of oscillating motor one and three A mouthfuls of flow divider-combiner are connected by pipeline, are put The rodless cavity of hydrodynamic cylinder pressure two and three B mouthfuls of flow divider-combiner are connected by pipeline；Position three in three P mouthfuls of flow divider-combiner and H-type The A mouth of position four-way solenoid valve three is connected by pipeline, the rod chamber of oscillating motor one and the rod chamber of oscillating motor two The B mouth of position three position four-way electromagnetic valve three is connected simultaneously and in H-type.

Above-described horizontal hydraulic pressure cylinder component one, swing arm unit one and hold down assembly one combination and horizontal hydraulic cylinder group Part two, swing arm unit two and hold down assembly two combined movement position or so it is full symmetric.

Position three position four-way electromagnetic valve and O-shaped middle position three position four-way electromagnetic valve in above-described H-type, including position three in H-type Position three position four-way electromagnetic valve three in position four-way solenoid valve one, O-shaped middle position three position four-way electromagnetic valve two and H-type, their middle position are sliding Valve function is H-type or O-shaped, " Mechanical Fundamentals and the liquid for please referring to the publication of publishing house, Jilin University, Chang Yongkun and victory to edit Pressure technology " H-type or O-shaped middle position slide valve function described in (ISBN 7-5601-3099-2) page 252.Position slide valve in H-type The characteristics of function is that each hydraulic fluid port full-mesh, hydraulic pump and system unloaded, piston float in hydraulic cylinder.O-shaped middle position slide valve function The characteristics of be that each hydraulic fluid port is totally-enclosed, hydraulic locking cylinder.

Above-described flow divider-combiner, including flow divider-combiner one, flow divider-combiner two and flow divider-combiner three, refer to It is that Chemical Industry Press publishes, described in the 5th edition " mechanical design handbook " the 21-567 pages of volume 5 that Cheng great Xian is edited Flow divider-combiner.Flow divider-combiner is also referred to as synchronous valve, is collection hydraulic pressure flow divider, combiner valve function in the independent hydraulically controlled device of one Part.Usually realize that there are many method moved synchronously, but wherein to use flow divider-combiner-synchronous valve synchronously control hydraulic pressure system System has many advantages such as that structure is simple, at low cost, manufacture is easy, highly reliable, thus flow divider-combiner is in hydraulic system It is widely used.Synchronizing for flow divider-combiner is speed sync, i.e., when two oil cylinders are respectively subjected to different loads, point Combiner valve is flowed by internal pressure and flow-sensitive component automatic adjustment, and cylinder movement is made to keep synchronizing.

The course of work of the invention is as described below.

0) original state.Rectangular steel plates are in upper locating slot；It compresses hydraulic cylinder piston rod one and is in horizontality, compress The open horizontal of slot one is also directed at the middle position of rectangular steel plates left end towards right alignment jaw slot one；Compress hydraulic cylinder Piston rod two is in horizontality, and the open horizontal of pressing groove two is also directed at rectangular steel plates towards left alignment jaw slot two The middle position of right end.Position three position four-way electromagnetic valve one commutates to right position in H-type, horizontal hydraulic cylinder one and horizontal hydraulic cylinder two Piston rod is in and is fully retracted state, positions by end of travel.Position three position four-way electromagnetic valve three commutates to right position in H-type, swings The piston rod of hydraulic cylinder one and oscillating motor two is in and is fully retracted state, positions by end of travel.

1) O-shaped middle position three position four-way electromagnetic valve two changes to left position to two P confession pressure fluid pressure oil of flow divider-combiner, shunts collection Valve two is flowed to compressing hydraulic cylinder one and compressing hydraulic cylinder two for hydraulic oil, then it is synchronous with hydraulic cylinder two is compressed same to compress hydraulic cylinder one Speed operation；Compressing hydraulic cylinder piston rod one drives pressure plate one to translate towards rectangular steel plates, and pressure plate one is inserted into jaw slot one, Pressing groove one is embedded in the left end of rectangular steel plates, and the slot bottom of pressing groove one compresses the left side of rectangular steel plates；Compress hydraulic cylinder piston Bar two drives pressure plate two to translate towards rectangular steel plates, and pressure plate two is inserted into jaw slot two, and pressing groove two is embedded in rectangular steel plates Right end, the slot bottom of pressing groove two compresses the right side of rectangular steel plates.Rectangular steel plates keep out compression hydraulic cylinder by the rigidity of itself One and compress hydraulic cylinder two pressure, compress hydraulic cylinder piston rod one and compress hydraulic cylinder piston rod two cannot continue to promote.

2) the downward punching press of upper mold, when upper mold will bear against in rectangular steel plates, such as upper mold is vertical from rectangular steel plates For distance at 5 to 15 millimeters, position three position four-way electromagnetic valve one commutates to middle position in H-type, and position three position four-way electromagnetic valve three changes in H-type To middle position.Then horizontal hydraulic cylinder one, horizontal hydraulic cylinder two, oscillating motor one and oscillating motor two are in floating type simultaneously State.The position that travel switch detection upper mold can be used when will bear against in rectangular steel plates, and a letter is provided to electric-control system Number.

3) upper mold continues downward punching press, and the center of rectangular steel plates is pressed, the two sides of rectangular steel plates respectively with the stupefied side of rounding Opposite sliding, the both ends of rectangular steel plates are upturned, due to horizontal hydraulic cylinder one, horizontal hydraulic cylinder two, one and of oscillating motor Oscillating motor two simultaneously be in quick condition, so swing arm unit one around coupling spindle one, hold down assembly one around swinging axle one, pendulum Arm component two is around coupling spindle two and to hold down assembly two around the rotation of swinging axle two be free.

The left end of pressing groove one and rectangular steel plates embedded in together, compress hydraulic cylinder piston rod one and pressure plate one combination and The left end of rectangular steel plates becomes an entirety, compresses the combination of hydraulic cylinder piston rod one and pressure plate one with a left side for rectangular steel plates End is upper to the right together to tilt, and compresses hydraulic cylinder body one and passively tilts with upper to the right.

The right end of pressing groove two and rectangular steel plates embedded in together, compress hydraulic cylinder piston rod two and pressure plate two combination and The right end of rectangular steel plates becomes an entirety, compresses the combination of hydraulic cylinder piston rod two and pressure plate two with the right side of rectangular steel plates End is upper to the left together to tilt, and compresses hydraulic cylinder body two and passively tilts with upper to the left.

When the left end of rectangular steel plates above tilts to the left to upper right, right end, rectangular steel plates both ends and one axial line of coupling spindle The distance between be smaller and smaller, so compressing hydraulic cylinder piston rod one and compressing the synchronous stretching compression of hydraulic cylinder piston rod two The both ends of rectangular steel plates.

Upper mold continues downward punching press, and the center of rectangular steel plates is pressed into bottom half-round, and two sides become side erection part, rectangle Steel plate becomes U-shaped semi-finished product, compresses hydraulic cylinder piston rod one and compression hydraulic cylinder piston rod two also becomes vertical state.Due to Horizontal hydraulic pressure cylinder component one, swing arm unit one and hold down assembly one combination and horizontal hydraulic pressure cylinder component two, swing arm unit two and Hold down assembly two combined movement left and right it is full symmetric, so formed U-shaped semi-finished product be also the full symmetric U-shaped shape in left and right Shape has achieved the purpose that rectify a deviation to rectangular steel plates, has ensured that two side erection part height are equal.

4) O-shaped middle position three position four-way electromagnetic valve two changes to right position to the rod chamber for compressing hydraulic cylinder one and compression hydraulic cylinder two Fuel feeding simultaneously, the hydraulic oil for compressing hydraulic cylinder one and compression two rodless cavity of hydraulic cylinder are let out by the afflux effect of flow divider-combiner two Lotus retracts so compressing hydraulic cylinder one and compressing two synchronous same-speed of hydraulic cylinder, while leaving the both ends of rectangular steel plates.It can be used At the time of stroke detection switch detects that compressing hydraulic cylinder one leaves the both ends of rectangular steel plates with compression hydraulic cylinder two.

At the time of compressing hydraulic cylinder one and compression hydraulic cylinder two has just left rectangular steel plates both ends: position 3-position 4-way in H-type It is same because of the afflux effect by flow divider-combiner one that solenoid valve one commutates to right position, horizontal hydraulic cylinder one and horizontal hydraulic cylinder two Step retraction；Horizontal hydraulic pressure cylinder piston rod one drives horizontal rack one to right translation, stirs fixed gear one and rotates, and drives entire pendulum Lower section is swung arm component one to the left；Horizontal hydraulic pressure cylinder piston rod two drives horizontal rack two to left, stirs fixed gear two Rotation, drives entire swing arm unit two to swing to the right；

Position three position four-way electromagnetic valve three commutates to right position in H-type simultaneously: oscillating motor one and oscillating motor two because by point The afflux of stream combiner valve three acts on and synchronizes retraction；Oscillating motor piston rod one drives oscillating rack one to translate, and stirs swing Gear one, hold down assembly one by after reaction force to lower left swing；Oscillating motor piston rod two drives oscillating rack two Translation, stirs wobble gear two, and hold down assembly two is swung to the right by after reaction force.

System is returned to the 0) original state described in step.

5) upper mold, which translates up, leaves, and removes the good U-shaped semi-finished product of punching press.

6) it is put into next rectangular steel plates in upper locating slot, it is completely right to 5), then stamping out one again to repeat step 1) The U-shaped semi-finished product of title.

If the pressure for compressing hydraulic cylinder one and compression hydraulic cylinder two is excessive, rectangular steel plates meeting loss of stability be bent Folding.It was verified that compressing hydraulic cylinder one and pressure when the thickness of rectangular steel plates is not less than 50 millimeters not less than 2.5 millimeters, width Tight hydraulic cylinder two pushes down rectangular steel plates from both ends to rectify a deviation, ensure the power and above-mentioned mistake of the equal needs of two side erection part height Stability is gone to bent power that folding needs compared to much smaller, so the thrust of the hydraulic cylinder all in design will meet to square The correction of shape steel plate ensures that two side erection part height are equal, and rectangular steel plates loss of stability will not be made to bent folding.

Beneficial effects of the present invention: it rectifies a deviation in U-shaped semi-finished product manufacturing process to rectangular steel plates, ensure two side erection parts It is highly equal, yield rate is improved, cost of goods manufactured is reduced.

Detailed description of the invention

Fig. 1 is the front view of the embodiment of the present invention, the situation of original state；

Fig. 2 is the front view of the embodiment of the present invention, and pressing groove 1 is embedded in the left end of rectangular steel plates 72, pressing groove 2 42221 Embedded in the situation of the right end of rectangular steel plates 72；

Fig. 3 is the front view of the embodiment of the present invention, the downward punching press of upper mold 5, the both ends of rectangular steel plates 72 be upturned 45 degree when Situation；

Fig. 4 is the front view of the embodiment of the present invention, the downward punching press of upper mold 5, and rectangular steel plates 72 become the full symmetric U-shaped in left and right half Situation when finished product 71；

Fig. 5 is A direction view in Fig. 4；

Fig. 6 is the cross-sectional view in Fig. 5 along line B-B；

Fig. 7 is the three dimensional structure diagram of lower mold assemblies 1；

Fig. 8 is the three dimensional structure diagram of horizontal hydraulic pressure cylinder component 1；

Fig. 9 is the three dimensional structure diagram of horizontal hydraulic pressure cylinder component 2 22；

Figure 10 is the three dimensional structure diagram of swing arm unit 1；

Figure 11 is the three dimensional structure diagram of swing arm unit 2 32；

Figure 12 be hold down assembly 1 three dimensional structure diagram；

Figure 13 is the three dimensional structure diagram for compressing bracket 1；

Figure 14 is the three dimensional structure diagram for compressing hydraulic pressure cylinder assembly 1；

Figure 15 is the three dimensional structure diagram of oscillating motor component 1；

Figure 16 be hold down assembly 2 42 three dimensional structure diagram；

Figure 17 is the three dimensional structure diagram for compressing bracket 2 421；

Figure 18 is flow divider-combiner 1, horizontal hydraulic cylinder 1, position 3-position 4-way electromagnetism in horizontal hydraulic cylinder 2 221 and H-type The fluid pressure line Mating graph of valve 1；

Figure 19 is flow divider-combiner 2 82, compresses hydraulic cylinder 1, compresses hydraulic cylinder 2 4221 and O-shaped middle position 3-position 4-way electricity The fluid pressure line Mating graph of magnet valve 2 102；

Figure 20 is flow divider-combiner 3 83, oscillating motor 1, position 3-position 4-way electricity in oscillating motor 2 4231 and H-type The fluid pressure line Mating graph of magnet valve 3 103；

Figure 21 is the three dimensional structure diagram of U-shaped semi-finished product 71；

It is as shown in the figure: 1. lower mold assemblies；11. lower die holder；Locating slot on 111.；112. semicircle groove；1131. swing arm connection holes One；1132. swing arm connection holes two；1141. jaw slots one；1142. jaw slots two；115. the stupefied side of rounding；121. horizontal liquid Cylinder pressure pinch roller one；122. horizontal hydraulic cylinder pinch roller two；131. horizontal hydraulic cylinder end pin one；132. horizontal hydraulic cylinder end pin two；21. Horizontal hydraulic pressure cylinder component one；211. horizontal hydraulic cylinders one；2111. horizontal hydraulic pressure cylinder bodies one；2112. horizontal hydraulic pressure cylinder piston rod One；212. horizontal racks one；22. horizontal hydraulic pressure cylinder component two；221. horizontal hydraulic cylinders two；2211. horizontal hydraulic pressure cylinder bodies two； 2212. horizontal hydraulic pressure cylinder piston rods two；222. horizontal racks two；31. swing arm unit one；311. swing arms one；312. coupling spindles one； 313. fixed gears one；314. swinging axles one；315. wobble gears one；32. swing arm unit two；321. swing arms two；322. connection Axis two；323. fixed gears two；324. swinging axles two；325. wobble gears two；41. holding down assembly one；411. compress bracket one； 4111. compress hydraulic cylinder mounting surface one；4112. oscillating motor coupling spindles one；4113. swing shaft mounting hole one；4114. swinging Hydraulic cylinder pinch roller mounting hole one；412. compress hydraulic pressure cylinder assembly one；4121. compress hydraulic cylinder one；41211. compressing hydraulic cylinder Body one；41212. compressing hydraulic cylinder piston rod one；4122. pressure plate one；41221. pressing groove one；413. oscillating motor components One；4131. oscillating motor one；41311. oscillating motor body one；41312. oscillating motor piston rod one；4132. swinging Rack gear one；414. oscillating motor pinch rollers one；42. holding down assembly two；421. compress bracket two；4211. compress hydraulic cylinder installation Face two；4212. oscillating motor coupling spindles two；4213. swing shaft mounting hole two；4214. oscillating motor pinch roller mounting holes two； 422. compress hydraulic pressure cylinder assembly two；4221. compress hydraulic cylinder two；42211. compressing hydraulic cylinder body two；42212. compressing hydraulic Cylinder piston rod two；4222. pressure plate two；42221. pressing groove two；423. oscillating motor components two；4231. oscillating motor Two；42311. oscillating motor body two；42312. oscillating motor piston rod two；4232. oscillating rack two；424. swings are hydraulic Cylinder pinch roller two；5. upper mold；6. rack；71.U shape semi-finished product；711. bottom half-rounds；712. side erection parts；72. rectangular steel plates；81. Flow divider-combiner one；One A mouthfuls of 81A. flow divider-combiner；One B mouthfuls of 81B. flow divider-combiner；One P mouthfuls of 81P. flow divider-combiner；82. Flow divider-combiner two；Two A mouthfuls of 82A. flow divider-combiner；Two B mouthfuls of 82B. flow divider-combiner；Two P mouthfuls of 82P. flow divider-combiner；83. Flow divider-combiner three；Three A mouthfuls of 83A. flow divider-combiner；Three B mouthfuls of 83B. flow divider-combiner；Three P mouthfuls of 83P. flow divider-combiner；91. Hydraulic oil source one；92. hydraulic oil source two；93. hydraulic oil source three；Position three position four-way electromagnetic valve one in 101.H type；In 101A.H type The A mouth of position three position four-way electromagnetic valve one；The B mouth of position three position four-way electromagnetic valve one in 101B.H type；Position three four in 101P.H type The P mouth of three-way electromagnetic valve one；Position three position four-way electromagnetic valve two in 102.O type；The A of position three position four-way electromagnetic valve two in 101A.O type Mouthful；The B mouth of position three position four-way electromagnetic valve two in 101B.O type；The P mouth of position three position four-way electromagnetic valve two in 101P.O type；103.H Position three position four-way electromagnetic valve three in type；The A mouth of position three position four-way electromagnetic valve three in 103A.H type；Position 3-position 4-way in 103B.H type The B mouth of solenoid valve three；The P mouth of position three position four-way electromagnetic valve three in 103P.H type.

Specific embodiment

Present invention will be further explained below with reference to the attached drawings and examples:

Embodiment: referring to Fig. 1 to Figure 21.

A kind of dental chair irradiation light annular rim U-shaped semi-finished product punching press symmetrically guarantees device, including 1 He of lower mold assemblies Upper mold 5, lower mold assemblies 1 include lower die holder 11, there is a upper locating slot 111 on lower die holder 11, and the depth of upper locating slot 111 is equal to The length and width of the thickness of rectangular steel plates 72, upper locating slot 111 is respectively equal to the length and width of rectangular steel plates 72, upper positioning The middle part of slot 111 is equipped with semicircle groove 112, and the radius of semicircle groove 112 is equal to the outer radius of U-shaped semi-finished product bottom half-round, on Locating slot 111 and 112 adjacent of semicircle groove are the stupefied sides 115 of rounding；Upper mold 5 be it is semicircle, upper mold 5 it is semicircle downward, position In the surface of semicircle groove 112, the semicircular radius of upper mold 5 is equal to the inside radius of 71 bottom half-round 711 of U-shaped semi-finished product；

It further include horizontal hydraulic pressure cylinder component 1, horizontal hydraulic pressure cylinder component 2 22, swing arm unit 1, swing arm unit 2 32, pressure Tight component 1, the 2 42, rack 6 that holds down assembly, flow divider-combiner 1, flow divider-combiner 2 82, flow divider-combiner 3 83, liquid Pressure oil source 1, hydraulic oil source 2 92, hydraulic oil source 3 93, position three position four-way electromagnetic valve 1, O-shaped middle position three four in H-type Position three position four-way electromagnetic valve 3 103 in three-way electromagnetic valve 2 102 and H-type；

Lower mold assemblies 1 further include horizontal hydraulic cylinder pinch roller 1, horizontal hydraulic cylinder pinch roller 2 122, horizontal hydraulic cylinder end pin one 131 and horizontal hydraulic cylinder end pin 2 132；Horizontal hydraulic cylinder pinch roller 1 is connected in the rear portion of lower die holder 11 by revolute pair Between, horizontal hydraulic cylinder pinch roller 2 122 is connected in the front of lower die holder 11, the axis of horizontal hydraulic cylinder pinch roller 1 by revolute pair The axial line of heart line and horizontal hydraulic cylinder pinch roller 2 122 is overlapped；Horizontal hydraulic cylinder end pin 1 is fixedly connected in lower die holder 11 Rear portion, horizontal hydraulic cylinder end pin 1 is in the right of horizontal hydraulic cylinder pinch roller 1；The fixed connection of horizontal hydraulic cylinder end pin 2 132 It connects in the front of lower die holder 11, horizontal hydraulic cylinder end pin 2 132 is in the left of horizontal hydraulic cylinder pinch roller 2 122；In lower die holder 11 Rear portion, horizontal hydraulic cylinder pinch roller 1 surface be additionally provided with swing arm connection holes 1, swing arm connection holes 2 1132 are under The front of die holder 11, swing arm connection holes 2 1132 and one 1131 center line of swing arm connection holes are overlapped；In the left end, preceding of lower die holder 11 The centre of upper locating slot 111 is equipped with jaw slot 1 in rear direction, the upper positioning on the right end, front-rear direction of lower die holder 11 The centre of slot 111 is equipped with jaw slot 2 1142；

Horizontal hydraulic pressure cylinder component 1 includes horizontal hydraulic cylinder 1 and horizontal rack 1；Horizontal hydraulic cylinder 1 is band Guide-bar hydraulic cylinder, horizontal hydraulic cylinder 1 include horizontal hydraulic pressure cylinder body 1 and horizontal hydraulic pressure cylinder piston rod 1；Water Flat hydraulic pressure cylinder assembly 1 is located at the rear portion of lower mold assemblies 1, the tail portion of horizontal hydraulic pressure cylinder body 1 and horizontal hydraulic cylinder end pin One 131 are combined into hinge；Horizontal rack 1 and the end of horizontal hydraulic pressure cylinder piston rod 1 are fixedly connected, horizontal rack Upward, lower part, that is, back of horizontal rack 1 downward and leans against on horizontal hydraulic cylinder pinch roller 1 one 212 gear teeth；Water Flat hydraulic cylinder piston rod 1 drives horizontal rack 1 relative to horizontal hydraulic pressure cylinder body 1 on left and right horizontal direction Piston motion is done, the back of horizontal rack 1 drives horizontal hydraulic cylinder pinch roller 1 to roll, i.e. the back of horizontal rack 1 Portion drives sliding friction between horizontal hydraulic cylinder pinch roller 1, effectively reduces frictional force；

Horizontal hydraulic pressure cylinder component 2 22 includes horizontal hydraulic cylinder 2 221 and horizontal rack 2 222；Horizontal hydraulic cylinder 2 221 is band Guide-bar hydraulic cylinder, horizontal hydraulic cylinder 2 221 include horizontal hydraulic pressure cylinder body 2 2211 and horizontal hydraulic pressure cylinder piston rod 2 2212；Water Flat hydraulic pressure cylinder assembly 2 22 is located at the front of lower mold assemblies 1, the tail portion of horizontal hydraulic pressure cylinder body 2 2211 and horizontal hydraulic cylinder end pin 2 132 are combined into hinge；Horizontal rack 2 222 and the end of horizontal hydraulic pressure cylinder piston rod 2 2212 are fixedly connected, horizontal rack Upward, lower part, that is, back of horizontal rack 2 222 downward and leans against on horizontal hydraulic cylinder pinch roller 2 122 2 222 gear teeth；Water Flat hydraulic cylinder piston rod 2 2212 drives horizontal rack 2 222 relative to horizontal hydraulic pressure cylinder body 2 2211 on left and right horizontal direction Piston motion is done, the back of horizontal rack 2 222 drives horizontal hydraulic cylinder pinch roller 2 122 to roll, i.e. the back of horizontal rack 2 222 Portion drives sliding friction between horizontal hydraulic cylinder pinch roller 2 122, effectively reduces frictional force；

Swing arm unit 1 includes swing arm 1, coupling spindle 1, fixed gear 1, swinging axle 1, wobble gear One 315；One end of swing arm 1 and fixed gear 1 are fixedly connected with coupling spindle 1 respectively, coupling spindle 1 and pendulum Arm connection holes 1 are engaged with hinge, fixed gear 1 and horizontal rack 1 is combined into；Horizontal hydraulic cylinder pinch roller one 121 can ensure that the distance of one 212 correct engagement of fixed gear 1 and horizontal rack；The other end and swing tooth of swing arm 1 1 are taken turns to be fixedly connected with swinging axle 1 respectively；

Swing arm unit 2 32 includes swing arm 2 321, coupling spindle 2 322, fixed gear 2 323, swinging axle 2 324, wobble gear 2 325；One end of swing arm 2 321 and fixed gear 2 323 are fixedly connected with coupling spindle 2 322 respectively, coupling spindle 2 322 and pendulum Arm connection holes 2 1132 are engaged with hinge, fixed gear 2 323 and horizontal rack 2 222 is combined into；Horizontal hydraulic cylinder pinch roller two 122 can ensure that the distance of 2 222 correct engagement of fixed gear 2 323 and horizontal rack；The other end and swing tooth of swing arm 2 321 2 325 are taken turns to be fixedly connected with swinging axle 2 324 respectively；

1 are held down assembly including compressing bracket 1, compressing hydraulic pressure cylinder assembly 1, oscillating motor component 1 and pendulum Hydrodynamic cylinder pressure pinch roller 1；

Compressing bracket 1 is L shape, and compressing bracket 1, there are two orthogonal sides, compresses first of bracket 1 While first edge tail and coupling spindle 1 for compressing bracket 1 pass through hinge perpendicular to the axial line of coupling spindle 1 It is connected, oscillating motor pinch roller 1 and first edge tail for compressing bracket 1 are connected by revolute pair, coupling spindle one The axial line of 312 axial line and oscillating motor pinch roller 1 is parallel and is not overlapped；Compress first of bracket 1 Oscillating motor coupling spindle 1 is additionally provided on side；

Oscillating motor component 1 includes oscillating motor 1 and oscillating rack 1；Oscillating motor 1 It is band guide-bar hydraulic cylinder；Oscillating motor 1 includes oscillating motor body 1 and oscillating motor piston rod one 41312；The end of oscillating rack 1 and oscillating motor piston rod 1 is fixedly connected；Oscillating motor piston rod One 41312 drive oscillating racks 1 do piston motion relative to oscillating motor body 1, oscillating rack 1 It is oriented parallel to the direction that oscillating motor piston rod 1 does piston motion；The tail portion of oscillating motor body 1 and Oscillating motor coupling spindle 1 couples, and oscillating rack 1 and wobble gear 1 engage；Oscillating rack 1 Back leans against on oscillating motor pinch roller 1, and the back of oscillating rack 1 drives oscillating motor pinch roller 1 to roll Dynamic, i.e. rolling friction between oscillating rack 1 and oscillating motor pinch roller 1 can reduce frictional force, swing hydraulic Cylinder pinch roller 1 is used to ensure the distance of one 315 correct engagement of oscillating rack 1 and wobble gear；

Second side for compressing bracket 1 is parallel to the axial line of coupling spindle 1；Compressing hydraulic pressure cylinder assembly 1 includes Compress hydraulic cylinder 1 and pressure plate 1；Compressing hydraulic cylinder 1 is band guide-bar hydraulic cylinder；Compress hydraulic cylinder one 4121 include compressing hydraulic cylinder body 1 and compression hydraulic cylinder piston rod 1；There is a square on pressure plate 1 The pressing groove 1 of shape；Pressure plate 1 is fixedly connected in the end for compressing hydraulic cylinder piston rod 1, compresses liquid Cylinder pressure cylinder body 1 is fixedly connected on second side for compressing bracket 1, compresses one 41212 band of hydraulic cylinder piston rod Dynamic pressure plate 1 does piston motion relative to hydraulic cylinder body 1 is compressed, and the opening direction of pressing groove 1 is flat Row does the direction of piston motion in compressing hydraulic cylinder piston rod 1；Pressure plate 1 is aligned jaw in the longitudinal direction Slot 1；

2 42 are held down assembly including compressing bracket 2 421, compressing hydraulic pressure cylinder assembly 2 422, oscillating motor component 2 423 and pendulum Hydrodynamic cylinder pressure pinch roller 2 424；

Compressing bracket 2 421 is L shape, and compressing bracket 2 421, there are two orthogonal sides, compresses first of bracket 2 421 While first edge tail and coupling spindle 2 322 for compressing bracket 2 421 pass through hinge perpendicular to the axial line of coupling spindle 1 It is connected, oscillating motor pinch roller 2 424 and first edge tail for compressing bracket 2 421 are connected by revolute pair, coupling spindle two The axial line of 322 axial line and oscillating motor pinch roller 2 424 is parallel and is not overlapped；Compress first of bracket 2 421 Oscillating motor coupling spindle 2 4212 is additionally provided on side；

Oscillating motor component 2 423 includes oscillating motor 2 4231 and oscillating rack 2 4232；Oscillating motor 2 4231 It is band guide-bar hydraulic cylinder；Oscillating motor 2 4231 includes oscillating motor body 2 42311 and oscillating motor piston rod two 42312；The end of oscillating rack 2 4232 and oscillating motor piston rod 2 42312 is fixedly connected；Oscillating motor piston rod 2 42312 drive oscillating racks 2 4232 do piston motion relative to oscillating motor body 2 42311, oscillating rack 2 4232 It is oriented parallel to the direction that oscillating motor piston rod 2 42312 does piston motion；The tail portion of oscillating motor body 2 42311 and Oscillating motor coupling spindle 2 4212 couples, and oscillating rack 2 4232 and wobble gear 2 325 engage；Oscillating rack 2 4232 Back leans against on oscillating motor pinch roller 2 424, and the back of oscillating rack 2 4232 drives oscillating motor pinch roller 2 424 to roll Dynamic, i.e. rolling friction between oscillating rack 2 4232 and oscillating motor pinch roller 2 424 can reduce frictional force, swing hydraulic Cylinder pinch roller 2 424 is used to ensure the distance of 2 325 correct engagement of oscillating rack 2 4232 and wobble gear；

Second side for compressing bracket 2 421 is parallel to the axial line of coupling spindle 1；Compressing hydraulic pressure cylinder assembly 2 422 includes Compress hydraulic cylinder 2 4221 and pressure plate 2 4222；Compressing hydraulic cylinder 2 4221 is band guide-bar hydraulic cylinder；Compress hydraulic cylinder two 4221 include compressing hydraulic cylinder body 2 42211 and compression hydraulic cylinder piston rod 2 42212；There is a square on pressure plate 2 4222 The pressing groove 2 42221 of shape；Pressure plate 2 4222 is fixedly connected in the end for compressing hydraulic cylinder piston rod 2 42212, compresses liquid Cylinder pressure cylinder body 2 42211 is fixedly connected on second side for compressing bracket 2 421, compresses 2 42212 band of hydraulic cylinder piston rod Dynamic pressure plate 2 4222 does piston motion relative to hydraulic cylinder body 2 42211 is compressed, and the opening of pressing groove 2 42221 is backwards to pressure Tight hydraulic cylinder piston rod 2 42212；Pressure plate 2 4222 is aligned jaw slot 2 1142 in the longitudinal direction；

Flow divider-combiner 1 includes two working holes and a pressure port, and two working holes of flow divider-combiner 1 are respectively One B mouthfuls of 81B of one A mouthfuls of 81A of flow divider-combiner and flow divider-combiner, a pressure port of flow divider-combiner 1 is flow divider-combiner One A mouthfuls of 81A of rodless cavity and flow divider-combiner of one P mouthfuls of 81P, horizontal hydraulic cylinder 1 are connected by pipeline, horizontal hydraulic cylinder 2 221 one B mouthfuls of 81B of rodless cavity and flow divider-combiner is connected by pipeline；Position three position four-way electromagnetic valve 1 in H-type Middle position slide valve function is H-type, and position three position four-way electromagnetic valve 1 includes two working holes in H-type, 3-position 4-way electricity in position in H-type Two working holes of magnet valve 1 are position 3-position 4-way in the A mouth 101A and H-type of position three position four-way electromagnetic valve one in H-type respectively The B mouth 101B of solenoid valve one；The A mouth 101A of position three position four-way electromagnetic valve one passes through pipe in one P mouthfuls of 81P of flow divider-combiner and H-type Road is connected, the rod chamber of the rod chamber of horizontal hydraulic cylinder 1 and horizontal hydraulic cylinder 2 221 position three four simultaneously and in H-type The B mouth 101B of three-way electromagnetic valve one is connected；

Flow divider-combiner 2 82 includes two working holes and a pressure port, and two working holes of flow divider-combiner 2 82 are respectively Two B mouthfuls of 82B of two A mouthfuls of 82A of flow divider-combiner and flow divider-combiner, a pressure port of flow divider-combiner 2 82 is flow divider-combiner Two P mouthfuls of 82P；The middle position slide valve function of O-shaped middle position three position four-way electromagnetic valve 2 102 is O-shaped, O-shaped middle position three position four-way electromagnetic valve 2 102 include two working holes, and two working holes of O-shaped middle position three position four-way electromagnetic valve 2 102 are O-shaped middle position three four respectively The B mouth 102B of the A mouth 102A of three-way electromagnetic valve two and O-shaped middle position three position four-way electromagnetic valve two；Compress hydraulic cylinder 1 without bar Two A mouthfuls of 82A of chamber and flow divider-combiner is connected by pipeline, compresses two B of rodless cavity and flow divider-combiner of hydraulic cylinder 2 4221 Mouth 82B is connected by pipeline；The A mouth 102A of two P mouthfuls of 82P of flow divider-combiner and O-shaped middle position three position four-way electromagnetic valve two passes through Pipeline is connected, and compresses the rod chamber of hydraulic cylinder 1 and compresses rod chamber while the O-shaped middle position three and of hydraulic cylinder 2 4221 The B mouth 102B of position four-way solenoid valve two is connected；

Flow divider-combiner 3 83 includes two working holes and a pressure port, and two working holes of flow divider-combiner 3 83 are respectively Three B mouthfuls of 83B of three A mouthfuls of 83A of flow divider-combiner and flow divider-combiner, a pressure port of flow divider-combiner 3 83 is flow divider-combiner Three P mouthfuls of 83P；The middle position slide valve function of position three position four-way electromagnetic valve 3 103 is H-type in H-type, position three position four-way electromagnetic valve in H-type 3 103 include two working holes, and two working holes of position three position four-way electromagnetic valve 3 103 are position three four in H-type respectively in H-type The B mouth 103B of position three position four-way electromagnetic valve three in the A mouth 103A and H-type of three-way electromagnetic valve three；Oscillating motor 1 without bar Three A mouthfuls of 83A of chamber and flow divider-combiner is connected by pipeline, three B of rodless cavity and flow divider-combiner of oscillating motor 2 4231 Mouth 83B is connected by pipeline；The A mouth 103A of position three position four-way electromagnetic valve three passes through in three P mouthfuls of 83P of flow divider-combiner and H-type Pipeline is connected, the rod chamber of the rod chamber of oscillating motor 1 and oscillating motor 2 4231 position three simultaneously and in H-type The B mouth 103B of position four-way solenoid valve three is connected.

Above-described horizontal hydraulic pressure cylinder component 1, swing arm unit 1 and hold down assembly 1 combination and horizontal liquid Cylinder pressure component 2 22, swing arm unit 2 32 and hold down assembly 2 42 combined movement position or so it is full symmetric.

Position three position four-way electromagnetic valve and O-shaped middle position three position four-way electromagnetic valve in above-described H-type, including position three in H-type Position three position four-way electromagnetic valve 3 103 in position four-way solenoid valve 1, O-shaped middle position three position four-way electromagnetic valve 2 102 and H-type, they Middle position slide valve function be H-type or O-shaped, please refer to publishing house, Jilin University publish, Chang Yongkun and victory it is " mechanical come what is edited Basis and hydraulic technique " H-type or O-shaped middle position slide valve function described in (ISBN 7-5601-3099-2) page 252.H-type The characteristics of middle position slide valve function is that each hydraulic fluid port full-mesh, hydraulic pump and system unloaded, piston float in hydraulic cylinder.O-shaped middle position The characteristics of slide valve function is that each hydraulic fluid port is totally-enclosed, hydraulic locking cylinder.

Above-described flow divider-combiner, including flow divider-combiner 1, flow divider-combiner 2 82 and flow divider-combiner three 83, refer to that Chemical Industry Press publishes, in the 5th edition " mechanical design handbook " the 21-567 pages of volume 5 that Cheng great Xian is edited Described flow divider-combiner.Flow divider-combiner is also referred to as synchronous valve, is collection hydraulic pressure flow divider, combiner valve function in the independence of one Hydraulic component.Usually realize that there are many method moved synchronously, but wherein to use flow divider-combiner-synchronous valve synchronously control Hydraulic system has many advantages such as that structure is simple, at low cost, manufacture is easy, highly reliable, thus flow divider-combiner is hydraulic It is widely used in system.Synchronizing for flow divider-combiner is speed sync, i.e., when two oil cylinders are respectively subjected to different bear When load, flow divider-combiner makes cylinder movement keep synchronizing by internal pressure and flow-sensitive component automatic adjustment.

The course of work of the present embodiment is as described below.

0) original state.As shown in Figure 1, rectangular steel plates 72 are in upper locating slot 111；Compress hydraulic cylinder piston rod one 41212 are in horizontality, and the open horizontal of pressing groove 1 is also directed at square towards right alignment jaw slot 1 The middle position of 72 left end of shape steel plate；It compresses hydraulic cylinder piston rod 2 42212 and is in horizontality, pressing groove 2 42221 is opened The horizontal saliva of mouth is flat towards left alignment jaw slot 2 1142, while being also directed at the middle position of 72 right end of rectangular steel plates.Position three four in H-type Three-way electromagnetic valve 1 commutates to right position, and the piston rod of horizontal hydraulic cylinder 1 and horizontal hydraulic cylinder 2 221, which is in, to be fully retracted State is positioned by end of travel.Position three position four-way electromagnetic valve 3 103 commutates to right position, oscillating motor 1 and pendulum in H-type The piston rod of hydrodynamic cylinder pressure 2 4231 is in and is fully retracted state, positions by end of travel.

1) O-shaped middle position three position four-way electromagnetic valve 2 102 changes to left position to two P mouthfuls of 82P of flow divider-combiner for pressure hydraulic oil, Flow divider-combiner 2 82 then compresses hydraulic cylinder 1 to compressing hydraulic cylinder 1 and compressing hydraulic cylinder 2 4221 for hydraulic oil It is run with 2 4221 synchronous same-speed of hydraulic cylinder is compressed；Compressing hydraulic cylinder piston rod 1 drives pressure plate 1 towards square Shape steel plate 72 translates, and pressure plate 1 is inserted into jaw slot 1, and pressing groove 1 is embedded in a left side for rectangular steel plates 72 End, the slot bottom of pressing groove 1 compress the left side of rectangular steel plates 72；It compresses hydraulic cylinder piston rod 2 42212 and drives compression Plate 2 4222 is translated towards rectangular steel plates 72, and pressure plate 2 4222 is inserted into jaw slot 2 1142, and pressing groove 2 42221 is embedded in square The right end of shape steel plate 72, the slot bottom of pressing groove 2 42221 compress the right side of rectangular steel plates 72.Rectangular steel plates 72 are rigid by itself Degree keeps out the pressure for compressing hydraulic cylinder 1 and compressing hydraulic cylinder 2 4221, compresses hydraulic cylinder piston rod 1 and compresses Hydraulic cylinder piston rod 2 42212 cannot continue to promote.

2) the downward punching press of upper mold 5, when upper mold 5 will bear against in rectangular steel plates 72, i.e., upper mold 5 is vertical from rectangular steel plates 72 For straight distance at 10 millimeters, position three position four-way electromagnetic valve 1 commutates to middle position in H-type, position three position four-way electromagnetic valve three in H-type 103 commutate to middle position.Then horizontal hydraulic cylinder 1, horizontal hydraulic cylinder 2 221, oscillating motor 1 and oscillating motor 2 4231 are in quick condition simultaneously.The position that travel switch detection upper mold 5 can be used when will bear against in rectangular steel plates 72, And a signal is provided to electric-control system.

3) upper mold 5 continues downward punching press, and the center of rectangular steel plates 72 is pressed, and the two sides of rectangular steel plates 72 are respectively and rounding The opposite sliding in stupefied side 115, the both ends of rectangular steel plates 72 are upturned, due to horizontal hydraulic cylinder 1, horizontal hydraulic cylinder 2 221, Oscillating motor 1 and oscillating motor 2 4231 are in quick condition simultaneously, so swing arm unit 1 is around coupling spindle one 312, it holds down assembly and one 41 around coupling spindle 2 322 and holds down assembly 2 42 around swinging axle around swinging axle 1, swing arm unit 2 32 2 324 rotation is free.

The left end of pressing groove 1 and rectangular steel plates 72 compresses hydraulic cylinder piston rod 1 and compression embedded in together The combination of plate 1 and the left end of rectangular steel plates 72 become an entirety, compress hydraulic cylinder piston rod 1 and pressure plate One 4122 combination is tilted as the left end of rectangular steel plates 72 is upper to the right together, compress hydraulic cylinder body 1 passively with Be upturned.

The right end of pressing groove 2 42221 and rectangular steel plates 72 compresses hydraulic cylinder piston rod 2 42212 and compression embedded in together The combination of plate 2 4222 and the right end of rectangular steel plates 72 become an entirety, compress hydraulic cylinder piston rod 2 42212 and pressure plate 2 4222 combination is upturned together with the right end of rectangular steel plates 72, compress hydraulic cylinder body 2 42211 passively with It is upper to the left to tilt.

When the both ends of rectangular steel plates 72 are tilted to upper right or upper left, 72 both ends of rectangular steel plates and one 312 axis of coupling spindle The distance between heart line is smaller and smaller, so compressing hydraulic cylinder piston rod 1 and compressing hydraulic cylinder piston rod two 42212 synchronous stretchings.

Upper mold 5 continues downward punching press, and the center of rectangular steel plates 72 is pressed into bottom half-round 711, and it is upright that two sides become side Portion 712, rectangular steel plates 72 become U-shaped semi-finished product 71, compress hydraulic cylinder piston rod 1 and compress hydraulic cylinder piston rod two 42212 also become vertical state.Due to horizontal hydraulic pressure cylinder component 1, swing arm unit 1 and hold down assembly 1 combination With horizontal hydraulic pressure cylinder component 2 22, swing arm unit 2 32 and hold down assembly 2 42 combined movement left and right it is full symmetric, so The U-shaped semi-finished product 71 of formation are also the full symmetric U-shape in left and right, have reached to the correction of rectangular steel plates 72, have ensured two sides The equal purpose of erection part height.

4) O-shaped middle position three position four-way electromagnetic valve 2 102 changes to right position to compression hydraulic cylinder 1 and compresses hydraulic cylinder two 4221 rod chamber while fuel feeding compresses hydraulic cylinder 1 and compresses the hydraulic oil of 2 4221 rodless cavity of hydraulic cylinder by shunting The afflux of combiner valve 2 82 acts on drain charge, retracts so compressing hydraulic cylinder 1 and compressing 2 4221 synchronous same-speed of hydraulic cylinder, The both ends of rectangular steel plates 72 are left simultaneously.Stroke detection switch can be used to detect compression hydraulic cylinder 1 and compress hydraulic At the time of cylinder 2 4221 leaves the both ends of rectangular steel plates 72.

At the time of compressing hydraulic cylinder 1 and compression hydraulic cylinder 2 4221 just leaves the both ends of rectangular steel plates 72: H Position three position four-way electromagnetic valve 1 commutates to right position in type: horizontal hydraulic cylinder 1 and horizontal hydraulic cylinder 2 221 because by point The afflux of stream combiner valve 1 acts on and synchronizes retraction；Horizontal hydraulic pressure cylinder piston rod 1 drives horizontal rack 1 to the right Translation is stirred fixed gear 1 and is rotated, and driving entire swing arm unit 1, lower section is swung to the left；Horizontal hydraulic pressure cylinder piston rod 2 2212 drive horizontal racks 2 222 to left, stir fixed gear 2 323 and rotate, drive entire swing arm unit 2 32 to Lower right is swung；

Position three position four-way electromagnetic valve 3 103 commutates to right position: oscillating motor 1 and oscillating motor two in H-type simultaneously 4231 synchronize retraction due to the afflux by flow divider-combiner 3 83 acts on；Oscillating motor piston rod 1, which drives, to be swung Rack gear 1 translate, stir wobble gear 1, hold down assembly 1 by after reaction force to lower left swing；It swings Hydraulic cylinder piston rod 2 42312 drive oscillating rack 2 4232 translate, stir wobble gear 2 325, hold down assembly 2 42 by It is swung to the right after reaction force.

System is returned to the 0) original state described in step.

5) upper mold 5, which translates up, leaves, the material returned.

6) it is put into next rectangular steel plates 72 in upper locating slot, it is complete to 5), then stamping out one again to repeat step 1) Symmetrical U-shaped semi-finished product.

If the pressure for compressing hydraulic cylinder 1 and compression hydraulic cylinder 2 4221 is excessive, rectangular steel plates 72 can be lost surely It is qualitative to bent folding.It was verified that compressing hydraulic cylinder when the thickness of rectangular steel plates 72 is more than 2.5 millimeters, width is more than 50 millimeters One 4121 push down rectangular steel plates 72 from both ends with compression hydraulic cylinder 2 4221 to rectify a deviation, ensure two side erection parts, 712 height phase The power of equal needs and above-mentioned loss of stability bent the power that folding needs compare it is much smaller, so all hydraulic when designing The thrust of cylinder will meet to the correction of rectangular steel plates 72, ensure that two side erection part height are equal, and will not make rectangular steel plates 72 Loss of stability bent folding.

The present embodiment the utility model has the advantages that in 71 manufacturing process of U-shaped semi-finished product to rectangular steel plates 72 correction, ensure two sides Erection part height is equal, improves yield rate, reduces cost of goods manufactured.

Claims

1. a kind of dental chair irradiation light annular rim U-shaped semi-finished product punching press symmetrically guarantees device, including lower mold assemblies and upper Mould, lower mold assemblies include lower die holder, there is a upper locating slot on lower die holder, and the depth of upper locating slot, length and width are respectively etc. Thickness, length and width in rectangular steel plates, the middle part of upper locating slot are equipped with semicircle groove, and the radius of semicircle groove is equal to U-shaped The outer radius of semi-finished product bottom half-round, upper locating slot and semicircle groove adjacent are the stupefied sides of rounding；Upper mold is semicircle, upper mold Downward, positioned at the surface of semicircle groove, the semicircular radius of upper mold is equal to interior the half of U-shaped semi-finished product bottom half-round to semicircle Diameter；

It is characterized in that, further include horizontal hydraulic pressure cylinder component one, horizontal hydraulic pressure cylinder component two, swing arm unit one, swing arm unit two, Hold down assembly one, the two, rack that holds down assembly, flow divider-combiner one, flow divider-combiner two, flow divider-combiner three, hydraulic oil source one, Hydraulic oil source two, hydraulic oil source three, in H-type in position three position four-way electromagnetic valve one, O-shaped middle position three position four-way electromagnetic valve two and H-type Position three position four-way electromagnetic valve three；

Horizontal hydraulic pressure cylinder component one includes horizontal hydraulic cylinder one and horizontal rack one；Horizontal hydraulic cylinder is first is that hydraulic with guide-bar Cylinder, horizontal hydraulic cylinder one include horizontal hydraulic pressure cylinder body one and horizontal hydraulic pressure cylinder piston rod one；Under horizontal hydraulic pressure cylinder component one is located at The rear portion of membrane module, the tail portion of horizontal hydraulic pressure cylinder body one and horizontal hydraulic cylinder end pin one are combined into hinge；Horizontal rack one and water The end of flat hydraulic cylinder piston rod one is fixedly connected, the gear teeth of horizontal rack one upward, the back of horizontal rack one downward and It leans against on horizontal hydraulic cylinder pinch roller one；Horizontal hydraulic pressure cylinder piston rod one drives horizontal rack one to exist relative to horizontal hydraulic pressure cylinder body one Piston motion is done on left and right horizontal direction, the back of horizontal rack one drives horizontal hydraulic cylinder pinch roller one to roll；

Horizontal hydraulic pressure cylinder component two includes horizontal hydraulic cylinder two and horizontal rack two；Horizontal hydraulic cylinder is second is that hydraulic with guide-bar Cylinder, horizontal hydraulic cylinder two include horizontal hydraulic pressure cylinder body two and horizontal hydraulic pressure cylinder piston rod two；Under horizontal hydraulic pressure cylinder component two is located at The front of membrane module, the tail portion of horizontal hydraulic pressure cylinder body two and horizontal hydraulic cylinder end pin two are combined into hinge；Horizontal rack two and water The end of flat hydraulic cylinder piston rod two is fixedly connected, the gear teeth of horizontal rack two upward, lower part, that is, back of horizontal rack two Downward and lean against on horizontal hydraulic cylinder pinch roller two；Horizontal hydraulic pressure cylinder piston rod two drives horizontal rack two relative to horizontal hydraulic cylinder Body two does piston motion on left and right horizontal direction, and the back of horizontal rack two drives horizontal hydraulic cylinder pinch roller two to roll；

Swing arm unit one includes swing arm one, coupling spindle one, fixed gear one, swinging axle one, wobble gear one；One end of swing arm one It is fixedly connected respectively with coupling spindle one with fixed gear one, coupling spindle one and swing arm connection holes one fix tooth with hinge is combined into Wheel one and horizontal rack one engage；The other end and wobble gear one of swing arm one are fixedly connected with swinging axle one respectively；

Swing arm unit two includes swing arm two, coupling spindle two, fixed gear two, swinging axle two, wobble gear two；One end of swing arm two It is fixedly connected respectively with coupling spindle two with fixed gear two, coupling spindle two and swing arm connection holes two fix tooth with hinge is combined into Wheel two and horizontal rack two engage；The other end and wobble gear two of swing arm two are fixedly connected with swinging axle two respectively；

Oscillating motor component one includes oscillating motor one and oscillating rack one；Oscillating motor is first is that hydraulic with guide-bar Cylinder；Oscillating motor one includes oscillating motor body one and oscillating motor piston rod one；Oscillating rack one and oscillating motor The end of piston rod one is fixedly connected；Oscillating motor piston rod one drives oscillating rack one to do relative to oscillating motor body one Piston motion, the direction for being oriented parallel to oscillating motor piston rod one and doing piston motion of oscillating rack one；Oscillating motor The tail portion of body one and oscillating motor coupling spindle one couple, and oscillating rack one and wobble gear one engage；The back of oscillating rack one Portion leans against on oscillating motor pinch roller one, and the back of oscillating rack one drives oscillating motor pinch roller one to roll；

Oscillating motor component two includes oscillating motor two and oscillating rack two；Oscillating motor is second is that hydraulic with guide-bar Cylinder；Oscillating motor two includes oscillating motor body two and oscillating motor piston rod two；Oscillating rack two and oscillating motor The end of piston rod two is fixedly connected；Oscillating motor piston rod two drives oscillating rack two to do relative to oscillating motor body two Piston motion, the direction for being oriented parallel to oscillating motor piston rod two and doing piston motion of oscillating rack two；Oscillating motor The tail portion of body two and oscillating motor coupling spindle two couple, and oscillating rack two and wobble gear two engage；The back of oscillating rack two Portion leans against on oscillating motor pinch roller two, and the back of oscillating rack two drives oscillating motor pinch roller two to roll；

Flow divider-combiner one includes two working holes and a pressure port, and two working holes of flow divider-combiner one are to shunt respectively One A mouthfuls and one B mouthfuls of flow divider-combiner of combiner valve, a pressure port of flow divider-combiner one is one P mouthfuls of flow divider-combiner, horizontal liquid The rodless cavity of cylinder pressure one and one A mouthfuls of flow divider-combiner are connected by pipeline, the rodless cavity and flow distributing and collecting of horizontal hydraulic cylinder two One B mouthfuls of valve is connected by pipeline；The middle position slide valve function of position three position four-way electromagnetic valve one is H-type in H-type, position three in H-type Four way solenoid valve one includes two working holes, and two working holes of position three position four-way electromagnetic valve one are position three in H-type respectively in H-type The B mouth of position three position four-way electromagnetic valve one in the A mouth and H-type of position four-way solenoid valve one；Position three in one P mouthfuls of flow divider-combiner and H-type The A mouth of position four-way solenoid valve one is connected by pipeline；

Flow divider-combiner two includes two working holes and a pressure port, and two working holes of flow divider-combiner two are to shunt respectively Two A mouthfuls and two B mouthfuls of flow divider-combiner of combiner valve, a pressure port of flow divider-combiner two is two P mouthfuls of flow divider-combiner；

Flow divider-combiner three includes two working holes and a pressure port, and two working holes of flow divider-combiner three are to shunt respectively Three A mouthfuls and three B mouthfuls of flow divider-combiner of combiner valve, a pressure port of flow divider-combiner three is three P mouthfuls of flow divider-combiner；In H-type The middle position slide valve function of position three position four-way electromagnetic valve three is H-type, and position three position four-way electromagnetic valve three includes two working holes, H in H-type Two working holes of position three position four-way electromagnetic valve three are position in the A mouth and H-type of position three position four-way electromagnetic valve three in H-type respectively in type The B mouth of three position four-way electromagnetic valve three；The rodless cavity of oscillating motor one and three A mouthfuls of flow divider-combiner are connected by pipeline, are put The rodless cavity of hydrodynamic cylinder pressure two and three B mouthfuls of flow divider-combiner are connected by pipeline；Position three in three P mouthfuls of flow divider-combiner and H-type The A mouth of position four-way solenoid valve three is connected by pipeline.

2. a kind of dental chair headlamp annular rim U-shaped semi-finished product punching press described in claim 1 symmetrically guarantees device Application method, it is characterised in that the following steps are included: the downward punching press of upper mold, when vertical range of the upper mold 5 from rectangular steel plates 72 is 5 When to 15 millimeters, position three position four-way electromagnetic valve one commutates to middle position in H-type, during position three position four-way electromagnetic valve three commutates in H-type Position, horizontal hydraulic cylinder one, horizontal hydraulic cylinder two, oscillating motor one and oscillating motor two are in quick condition simultaneously.