CN112355101A - Bending device for medical support - Google Patents
Bending device for medical support Download PDFInfo
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- CN112355101A CN112355101A CN202110032485.2A CN202110032485A CN112355101A CN 112355101 A CN112355101 A CN 112355101A CN 202110032485 A CN202110032485 A CN 202110032485A CN 112355101 A CN112355101 A CN 112355101A
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- 238000005452 bending Methods 0.000 title claims abstract description 48
- 230000005540 biological transmission Effects 0.000 claims abstract description 46
- 238000004080 punching Methods 0.000 claims description 31
- 230000000694 effects Effects 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 210000003781 tooth socket Anatomy 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 2
- 230000002829 reductive effect Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 12
- 230000000670 limiting effect Effects 0.000 description 11
- 239000000463 material Substances 0.000 description 11
- 230000033001 locomotion Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 230000008901 benefit Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000002028 premature Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention relates to the field of medical supports, in particular to a bending device for medical supports, which comprises a stamping table, a stamping head, a stamping base and two forming arms, wherein two steering circular shafts are symmetrically arranged on the stamping table, the stamping base is positioned between the two steering circular shafts, the forming arms are provided with a connecting side and a movable side, the connecting side is sleeved on the steering circular shafts, two ends of the stamping base are respectively and vertically and movably connected with the side surface of the stamping table through a guide plate, the outer sides of the guide plates are respectively provided with a transmission structure, two ends of the steering circular shafts are respectively provided with a transmission component in transmission fit with the transmission structure, when the guide plates vertically move downwards, the transmission structure is in transmission fit with the transmission component and forces the movable side to approach towards the stamping base, two ends of the steering circular shafts are provided with torsion springs, the stamping base is connected with the stamping table through return springs, the stamping head is cylindrical, and the number of, the stamping heads are all positioned between the two forming arms, so that the impact of rebound after bending can be reduced, and the workpiece can not be damaged.
Description
Technical Field
The invention relates to the field of medical supports, in particular to a bending device for a medical support.
Background
The part of the U-shaped composite support usually in the medical support industry is a current stamping device by stamping the whole sheet metal steel plate through stamping, the structure is complex, and during stamping operation, because the blank has rebound influence, static pressure maintaining is required to be carried out after stamping, so the processing efficiency is low.
According to the above problems, through retrieval: chinese patent application No.: CN201911228449.2 discloses medical instrument is with support forming device that bends belongs to medical instrument technical field. It includes mould and the lower mould relative with last mould, the lower mould includes the mount pad, first moving part and second moving part, set up upper end open-ended cavity on the mount pad, the cavity is including the first rotation chamber that is linked together, the second rotates chamber and activity chamber, first moving part includes first rotation portion, first splenium and first portion of bending, first rotation portion rotates and installs at first rotation intracavity, the second moving part includes the second rotation portion, the second portion of bending and the second portion of bending push down, the second rotation portion rotates and installs at the second rotation intracavity, the bottom surface looks butt of first splenium and second splenium, first portion of bending, form the working chamber between second splenium and the second portion of pressing down. Therefore, compared with the prior art, the bending die has the advantages of high machining efficiency and difficulty in damaging the bending die.
Although the above patent application is simple and convenient in structure and can solve the rebound problem to some extent, the following problems still exist:
in the process of stamping a workpiece in real time by the upper die of the component in the patent application, the bottom of the upper die can contact the edge of the upper part of the second bending part, and the workpiece is easily damaged due to single-point contact;
if the bottom of the upper die is required to avoid the upper edge of the second bending part, the bottom of the upper die is required to be close to the wall surface of the second bending part, so that the stamping area is uneven, and the other side of the workpiece is unstable;
in addition, the invention also describes that the first movable part and the second movable part are pressed by the upper die, the workpiece is punched and formed at one time, and the size of the opening of the workpiece can be controlled; the size of the opening is controllable and is adjusted according to the specific depth of the upper die punching into the working cavity; however, according to the above mentioned, the bottom of the upper die contacts the upper edge of the second bending portion, so that the width of the upper die is limited to be not too large and only can be aligned with the center of the working chamber, if the opening requirement of the workpiece is too small, the penetration amount of the upper die cannot be too deep, but cannot be too deep, the bottom of the upper die continuously keeps local contact with the upper edge of the second bending portion, and thus the quality of the workpiece is very unfavorable.
Disclosure of Invention
The invention aims to provide a bending device for a medical support.
In order to achieve the purpose, the invention adopts the following technical scheme:
a bending device for a medical support comprises a stamping platform, a stamping head, a stamping base and two forming arms, wherein two horizontal steering circular shafts are symmetrically arranged above the stamping platform, the stamping base is horizontally arranged in the middle of the stamping platform, each steering circular shaft can rotate around the axis of the stamping base, each forming arm is provided with a connecting side and a movable side, the connecting sides are fixedly sleeved on the steering circular shafts, the movable sides are always positioned above the steering circular shafts, the stamping base is always positioned below the two movable sides, two ends of the stamping base are respectively and vertically movably connected with the side surfaces of the stamping platform through a guide plate, the two guide plates are respectively positioned at one end of each steering circular shaft, a transmission structure is arranged on the outer side of each guide plate, two ends of each steering circular shaft are respectively provided with a transmission component which is in transmission fit with the transmission structures at respective positions, when the guide plates vertically move downwards, the transmission structure and the transmission component in the guide plate outside are in transmission fit, the movable side of each forming arm is forced to approach towards the stamping base, torsion springs are arranged at two ends of each steering circular shaft, the torsion springs are in a normal state and used for forcing the movable side to be far away from the stamping base, the stamping base is always located above the stamping table, the bottom of the stamping base is connected with the top of the stamping table through a plurality of reset springs, the stamping heads are cylindrical, the number of the stamping heads is at least three, all the stamping heads are located between the two forming arms, and the two stamping heads respectively correspond to two sides of the stamping base and approach to one forming arm respectively.
Furthermore, the transmission structure comprises a first U-shaped plate, a group of tooth grooves are formed in the outer two sides of the first U-shaped plate from top to bottom respectively, the inner side face of an opening of the first U-shaped plate is fixedly connected with the guide plate, and each tooth groove in the outer side of the first U-shaped plate is in transmission connection with one transmission member respectively.
Furthermore, the transmission component comprises a first chain wheel, a second chain wheel and a gear, the gear is located on the outer side of the first U-shaped plate and meshed with a tooth groove on the outer side of the first U-shaped plate, the first chain wheel and the gear are connected in series through a rotating shaft, the second chain wheel is sleeved on the steering circular shaft, and the first chain wheel and the second chain wheel are connected through synchronous chain transmission.
Furthermore, a bearing seat crossing two sides of the punching base is arranged above the punching base, a concave cavity sinking downwards is arranged at the top of the punching base, the concave cavity penetrates through two sides of the punching base and is used for accommodating the bearing seat, a plurality of movable columns are arranged at the bottom of the bearing seat, the movable columns penetrate through the bottom of the concave cavity and are vertically and movably matched with the punching base, return springs are sleeved on the movable columns, two ends of each return spring are respectively connected with the bottom of the bearing seat and the bottom of the concave cavity, when the return springs and the torsion springs are in a normal state, the bearing seat is positioned right above the punching base, the surface of the top of the bearing seat is flush with the outer surface of the movable side of the forming arm, a plurality of first limiting blocks are further arranged on the bottom wall in the concave cavity, when the bottom of the bearing seat is in contact with the surface of the top of the first limiting blocks, the upper surface of the bearing seat can be flush, the both ends of bearing seat are located the outside of punching press base to its both ends are equipped with downwardly extending's lifter plate respectively, the lifter plate runs through the punching press platform, and with the vertical clearance fit of punching press platform.
Furthermore, the bottom of the stamping platform is provided with a lifting cylinder, the output end of the lifting cylinder extends upwards and penetrates through the stamping platform to be fixedly connected with the bottom of the stamping base.
Furthermore, the movable side is provided with an installation opening, a bending roller which is axially parallel to the axial direction of the steering round shaft is arranged in the installation opening, and the bending roller can rotate around the axis of the bending roller to form the movable side.
Furthermore, an avoiding curved surface is formed on one side surface of the forming arm facing the stamping base.
The invention has the beneficial effects that: the top surface of the bearing seat is flush with the outer surface of the movable side of the forming arm, and the top surface and the outer surface form a bearing area for bearing a workpiece (metal plate); when the stamping head works, single-point contact cannot be formed, the stamping contact area is large, and the workpiece cannot be damaged; in addition, the upper surfaces of the bearing seat and the stamping base are flat surfaces, so that the contact area is large in the stamping process of the workpiece, and the workpiece cannot be damaged;
the downward displacement of the stamping base, namely the bending amplitude of the forming arm; therefore, the downward movement determines the opening specification of the workpiece forming;
after the bending is finished, the traditional mode needs to maintain pressure for a certain time, but at the moment, waiting is not needed, the stamping head performs a reset action, and under the action of a return spring, the bearing seat is jacked up and moves along with the upward movement of the stamping head; namely, the supporting seat carries the workpiece to move upwards at the moment; the material returning action is achieved; however, at the moment, the piston shaft of the lifting cylinder does not perform any output action, so that the stamping base does not rise, but keeps the position immovable, and the stamping mechanism has the advantages that the position of the movable side of the forming arm cannot be changed (locked) in the material returning action, the guide plate does not displace, the tooth grooves and the gears are static, the meshing action is not performed, the natural steering circular shaft cannot rotate, and the transmission structure achieves a self-locking effect on the transmission member; the movable side of the forming arm is composed of a rotatable bending roller; meanwhile, after the workpiece is subjected to punch forming of the movable side of the forming arm, the outer surface of the workpiece can be kept in contact with the movable side under the condition that the forming arm does not rotate, so that when the workpiece returns, the workpiece can be kept in contact with the bending roller in the material returning process to form punching limiting, pressure maintaining is formed, and the rebound probability is reduced; because the pressure maintaining action is executed in the material returning process, the efficiency is further improved.
Meanwhile, the bending roller can rotate, so that the outer surface of the workpiece cannot be damaged; in the time of the material returning process, the pressure maintaining in the forming area after the workpiece is bent and formed can be well utilized;
when the bearing seat rises for a certain time, the bearing seat cannot be contacted with the forming arm within the time, and when the time is up, the piston shaft of the lifting cylinder outputs upwards, at the moment, the steering circular shaft rotates reversely under the action of upward force of the guide plate, the movable side of the forming arm is far away from the workpiece, and the workpiece and the bearing seat can reach the attitude position during feeding; the effect of dodging the curved surface lies in, can be so that the uplift increase of bearing seat, can not too early and shaping arm contact, the pressurize time is long.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a schematic structural view of a loading working state of the invention;
FIG. 2 is a schematic structural view of a bending operation state of the present invention;
FIG. 3 is a schematic structural view of the material returning operation state of the present invention;
FIG. 4 is a perspective view of the present invention;
FIG. 5 is a schematic partial perspective view of the present invention;
fig. 6 is a plan sectional view of the present invention.
In the figure: the stamping device comprises a stamping platform 0, a lifting cylinder 1, a stamping base 2, a bearing seat 3, a cavity 4, a movable column 5, a return spring 6, a first limiting block 7, a lifting plate 8, a stamping head 9, a guide plate 10, a first U-shaped plate 12, a tooth groove 13, a forming arm 14, an avoiding curved surface 15, a connecting side 16, a movable side 17, a steering circular shaft 18, a first chain wheel 20, a second chain wheel 21, a gear 22, a rotating shaft 23, a torsion spring 24, a bending roller 25 and a return spring 26.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and the specific meanings of the terms may be understood by those skilled in the art according to specific situations.
In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being fixed or detachable or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 6, a bending device for a medical stent includes a stamping table 0, a stamping head 9, a stamping base 2, and two forming arms 14, wherein two horizontal steering circular shafts 18 are symmetrically disposed above the stamping table 0, the stamping base 2 is horizontally disposed at the middle of the two steering circular shafts, each steering circular shaft 18 can rotate around its own axis, the forming arms 14 have a connecting side 16 and a movable side 17, the connecting side 16 is fixedly sleeved on the steering circular shafts 18, the movable side 17 is always disposed above the steering circular shafts 18, the stamping base 2 is always disposed below the two movable sides 17, two ends of the stamping base 2 are vertically and movably connected with the side of the stamping table 0 through a guide plate 10, the two guide plates 10 are respectively disposed at one end of the steering circular shafts 18, a transmission structure 11 is disposed outside each guide plate 10, two ends of each steering circular shaft 18 are respectively provided with a transmission member 19 in transmission fit with the transmission structure 11 at their respective positions, when the guide plate 10 vertically moves downwards, the transmission structure 11 outside the guide plate 10 is in transmission fit with the transmission member 19, and forces the movable side 17 of the forming arm 14 to approach towards the stamping base 2, the two ends of the steering circular shaft 18 are provided with torsion springs 24, the torsion springs 24 are in a normal state and are used for forcing the movable side 17 to be far away from the stamping base 2, the stamping base 2 is always positioned above the stamping table 0, the bottom of the stamping base 2 is connected with the top of the stamping table 0 through a plurality of return springs 26, the stamping heads 9 are cylindrical and at least three in number, all the stamping heads 9 are positioned between the two forming arms 14, and two stamping heads 9 respectively correspond to two sides of the stamping base 2 and respectively approach to one forming arm 14.
The transmission structure 11 comprises a first U-shaped plate 12, a group of tooth sockets 13 are respectively arranged on the outer two sides of the first U-shaped plate 12 from top to bottom, the inner side surface of an opening of the first U-shaped plate 12 is fixedly connected with the guide plate 10, and the tooth sockets 13 on the outer side of each first U-shaped plate 12 are respectively in transmission connection with a transmission member 19.
The transmission member 19 comprises a first chain wheel 20, a second chain wheel 21 and a gear 22, the gear 22 is positioned on the outer side of the first U-shaped plate 12 and is meshed with the tooth grooves 13 on the outer side of the first U-shaped plate 12, the first chain wheel 20 and the gear 22 are connected in series through a rotating shaft 23, the second chain wheel 21 is sleeved on the steering circular shaft 18, and the first chain wheel 20 and the second chain wheel 21 are connected through a synchronous chain; the gear 22 is engaged with the tooth slot 13, the gear 22 rotates, the rotating shaft 23 naturally rotates, the rotating shaft 23 rotates to drive the first chain wheel 20 to rotate, and the first chain wheel 20 and the second chain wheel 21 drive the steering circular shaft 18 to rotate by means of a synchronous chain.
The punching base 2 is provided with a bearing seat 3 crossing two sides of the punching base 2, the top of the punching base 2 is provided with a cavity 4 sinking downwards, the cavity 4 penetrates through two sides of the punching base 2, the cavity 4 is used for accommodating the bearing seat 3, the bottom of the bearing seat 3 is provided with a plurality of movable columns 5, the movable columns 5 penetrate through the bottom of the cavity 4 and are vertically and movably matched with the punching base 2, the movable columns 5 are sleeved with return springs 6, two ends of the return springs 6 are respectively connected with the bottom of the bearing seat 3 and the bottom of the cavity 4, when the return springs 6 and torsion springs 24 are in a normal state, the bearing seat 3 is positioned right above the punching base 2, the top surface of the bearing seat 3 is flush with the outer surface of the movable side 17 of the forming arm 14, the bottom wall in the cavity 4 is also provided with a plurality of first limiting blocks 7, when the bottom of the bearing seat 3 is contacted with the top surface of the first limiting blocks 7, at the moment, the upper surface of the bearing seat 3 can be flush with the top surface of the stamping base 2, two ends of the bearing seat 3 are positioned outside the stamping base 2, two ends of the bearing seat are respectively provided with a lifting plate 8 extending downwards, and the lifting plates 8 penetrate through the stamping table 0 and are vertically and movably matched with the stamping table 0; the first limiting block 7 acts on descending limiting of the bearing seat 3 and prevents the return spring 6 from being damaged after being stamped to the limit; after the bearing seat 3 is lowered to be in contact with the first limiting block 7, the upper surface of the bearing seat 3 can be flush with the top surface of the punching base 2, so that a stepped area cannot be formed between the bearing seat 3 and the punching base 2, namely, other areas outside the cavity 4 of the punching base 2 can also bear workpieces; the return spring 6 has the specific function that the stamping head 9 can be reset, even if the stamping base 2 does not rise and reset, the bearing seat 3 can also rise synchronously with the stamping head 9 by the return spring 6, and the purpose of material returning is achieved.
The bottom of the stamping platform 0 is provided with a lifting cylinder 1, the output end of the lifting cylinder 1 extends upwards and penetrates through the stamping platform 0 to be fixedly connected with the bottom of the stamping base 2; when the stamping head 9 is reset, the bearing seat 3 is lifted independently of the stamping base 2 under the action of the return spring 6, at the moment, the workpiece is positioned on the bearing seat 3, two sides of the workpiece are kept in contact with the forming arm 14, and the continuous contact is realized to form a pressure maintaining effect; the lifting cylinder 1 has the specific function that the output shaft of the lifting cylinder 1 can slowly rise to slowly drive the forming arms 14, so that the movable sides 17 of the two forming arms 14 are driven to open, and the workpiece can be returned.
The movable side 17 is provided with an installation opening, a bending roller 25 which is axially parallel to the axial direction of the steering round shaft 18 is arranged in the installation opening, the bending roller 25 can rotate around the axis of the bending roller, and the movable side 17 is formed; the rotation of the bending roller 25 means that the workpiece does not rub excessively against the forming arm 14 when it is lifted while the movable side 17 of the forming roller is held in contact with the outer side of the workpiece.
An avoiding curved surface 15 is arranged on one side surface of the forming arm 14 facing the stamping base 2; the escape curved surface 15 has the effect of increasing the amount of lift of the support base 3, preventing premature contact with the forming arm 14, and prolonging the dwell time.
The working principle of the invention is as follows: when the return spring 6 is in a normal state, the bearing seat 3 is positioned right above the stamping base 2; and at the moment, the torsion spring 24 is also in a normal state, the connecting side 16 of the forming arm 14 rotates along with the steering round shaft 18, and the movable side 17 of the forming arm 14 is enabled to be far away from the stamping base 2; it is also stated that the top face of the support base 3 is now flush with the outer face of the movable side 17 of the forming arm 14, which forms a support area for the workpiece (sheet metal);
placing a workpiece on a bearing area, enabling a stamping head 9 to work, contacting and pressing the workpiece, enabling a return spring 6 below a bearing seat 3 to contract due to the pressing force, and enabling the bearing seat 3 to descend, wherein the bearing seat 3 carries the workpiece to descend synchronously, and due to the fact that the two sides of the workpiece are located on a movable side 17 of a forming arm 14 and the acting force of a torsion spring 24 of the movable side 17, the movable side 17 cannot rotate towards one side far away from a stamping base 2, the side part of the workpiece is bent, and the area of the workpiece contacted by the stamping head 9 gradually descends;
when the bearing seat 3 is pressed down to be in contact with the top surface of the first limit block 7 by the acting force of the stamping head 9, the first limit block 7 limits the downward moving range of the bearing seat, meanwhile, the body of the stamping base 2 is indirectly caused to start to descend by the contact force, when the body of the stamping base 2 descends, the guide plate 10 moves along with the first limit block, the tooth grooves 13 on the outer side of the first U-shaped plate 12 outside the guide plate 10 are meshed with the gears 22 on the corresponding positions, the two gears 22 on the outer side of the first U-shaped plate 12 synchronously rotate in the positive and negative directions, and under the acting force of the first chain wheel 20 and the second chain wheel 21, the two steering circular shafts 18 start to rotate, the movable sides 17 of the respective forming arms 14 rotate towards the direction of a workpiece, and the side part of;
the downward movement of the punch base 2, that is, the bending amplitude of the forming arm 14; therefore, the downward movement determines the opening specification of the workpiece forming; the movable side 17 of the forming arm 14 is contacted with the stamping head 9 to form bending forming on the side part of the workpiece;
after the bending is finished, the traditional mode needs to maintain pressure for a certain time, but at the moment, waiting is not needed, the stamping head 9 performs a reset action, and under the action force of the return spring 6, the bearing seat 3 is jacked up and moves along with the upward movement of the stamping head 9; namely, the bearing seat 3 carries the workpiece to move upwards at the moment; the material returning action is achieved; however, the piston shaft of the lifting cylinder 1 does not perform any output motion, so that the press bed 2 does not rise, but remains stationary, which has the advantage that during the above-mentioned material return motion, the position of the movable side 17 of the forming arm 14 does not change, because the guide plate 10 is not displaced, the tooth space 13 and the gear 22 are stationary, no meshing motion occurs, and the natural steering shaft 18 does not rotate, so that the transmission structure 11 achieves a self-locking effect on the transmission member 19.
Since the movable side 17 of the forming arm 14 is constituted by a rotatable bending roller 25; meanwhile, after the workpiece is subjected to punch forming of the movable side 17 of the forming arm 14, under the condition that the forming arm 14 does not rotate, the outer surface of the workpiece keeps in contact with the movable side 17, so that when the workpiece returns, the workpiece keeps in contact with the bending roller 25 in the material returning process to form punching limit; meanwhile, the bending roller 25 can rotate, so that the outer surface of the workpiece cannot be damaged; in the time of the material returning process, the pressure maintaining in the forming area after the workpiece is bent and formed can be well utilized;
when the supporting seat 3 rises for a certain time, the supporting seat 3 can not contact with the forming arm 14 within the time, and when the time is up, the piston shaft of the lifting cylinder 1 is output upwards, at the moment, the steering round shaft 18 rotates reversely due to the upward acting force of the guide plate 10, the movable side 17 of the forming arm 14 is far away from the workpiece, and the workpiece and the supporting seat 3 can reach the attitude position during feeding; the escape curved surface 15 has the effect of increasing the amount of lift of the support base 3, preventing premature contact with the forming arm 14, and prolonging the dwell time.
It should be understood that the above-described embodiments are merely preferred embodiments of the invention and the technical principles applied thereto. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, such variations are within the scope of the invention as long as they do not depart from the spirit of the invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.
Claims (7)
1. A bending device for a medical support comprises a stamping platform (0), a stamping head (9) and a stamping base (2), and is characterized by further comprising two forming arms (14), wherein two horizontal steering circular shafts (18) are symmetrically arranged above the stamping platform (0), the stamping base (2) is horizontally arranged in the middle of the two steering circular shafts, each steering circular shaft (18) can be respectively arranged in a rotating mode around the axis of the steering circular shaft, each forming arm (14) is provided with a connecting side (16) and a movable side (17), the connecting sides (16) are fixedly sleeved on the steering circular shafts (18), the movable sides (17) are always positioned above the steering circular shafts (18), the stamping base (2) is always positioned below the two movable sides (17), two ends of the stamping base (2) are respectively and vertically and movably connected with the side surface of the stamping platform (0) through one guide plate (10), the two guide plates (10) are respectively positioned at one end of each steering circular shaft (18), the outer side of each guide plate (10) is provided with a transmission structure (11), two ends of each steering circular shaft (18) are respectively provided with a transmission component (19) which is in transmission fit with the transmission structure (11) at each position, when the guide plates (10) vertically move downwards, the transmission structure (11) at the outer side of each guide plate (10) is in transmission fit with the transmission component (19) and forces the movable side (17) of the forming arm (14) to approach towards the stamping base (2), two ends of each steering circular shaft (18) are provided with torsion springs (24), the torsion springs (24) are in a normal state and are used for forcing the movable side (17) to be far away from the stamping base (2), the stamping base (2) is always positioned above the stamping platform (0), the bottom of the stamping base (2) is connected with the top of the stamping platform (0) through a plurality of reset springs (26), and the stamping head (9) is cylindrical, and the number is at least three, all stamping heads (9) are positioned between the two forming arms (14), and two stamping heads (9) respectively correspond to two sides of the stamping base (2) and are respectively close to one forming arm (14).
2. The bending device for the medical support according to claim 1, wherein the transmission structure (11) comprises a first U-shaped plate (12), a group of tooth sockets (13) are respectively arranged on the two outer sides of the first U-shaped plate (12) from top to bottom, the inner side surface of the opening of the first U-shaped plate (12) is fixedly connected with the guide plate (10), and the tooth sockets (13) on the outer side of each first U-shaped plate (12) are respectively in transmission connection with a transmission member (19).
3. The bending device for the medical stent according to claim 2, wherein the transmission member (19) comprises a first chain wheel (20), a second chain wheel (21) and a gear (22), the gear (22) is positioned on the outer side of the first U-shaped plate (12) and meshed with a tooth groove (13) on the outer side of the first U-shaped plate (12), the first chain wheel (20) and the gear (22) are connected in series through a rotating shaft (23), the second chain wheel (21) is sleeved on the steering circular shaft (18), and the first chain wheel (20) and the second chain wheel (21) are connected through a synchronous chain transmission.
4. The bending device for the medical stent according to any one of claims 1 to 3, wherein a supporting seat (3) crossing both sides of the punching base (2) is arranged above the punching base (2), a concave cavity (4) sinking downwards is formed at the top of the punching base (2), the concave cavity (4) penetrates both sides of the punching base (2), the concave cavity (4) is used for accommodating the supporting seat (3), a plurality of movable columns (5) are arranged at the bottom of the supporting seat (3), the movable columns (5) penetrate the bottom of the concave cavity (4) and are vertically movably matched with the punching base (2), return springs (6) are sleeved on the movable columns (5), both ends of the return springs (6) are respectively connected with the bottom of the supporting seat (3) and the bottom of the concave cavity (4), and when the return springs (6) and the torsion springs (24) are both in a normal state, the supporting seat (3) is positioned right above the punching base (2), and the top face of bearing seat (3) flushes with the surface of the activity side (17) of shaping arm (14) mutually, and the diapire in cavity (4) still is equipped with a plurality of first stopper (7), works as when the bottom of bearing seat (3) contacts with the top face of first stopper (7), and the upper surface of this bearing seat (3) can flush with the top face of punching press base (2) this moment, and the both ends of bearing seat (3) are located the outside of punching press base (2) to its both ends are equipped with lifter plate (8) of downwardly extending respectively, lifter plate (8) run through punching press platform (0) to with the vertical clearance fit of punching press platform (0).
5. The bending device for the medical support according to claim 4, wherein the bottom of the stamping platform (0) is provided with a lifting cylinder (1), the output end of the lifting cylinder (1) extends upwards and penetrates through the stamping platform (0) to be fixedly connected with the bottom of the stamping base (2).
6. The bending device for medical stents according to claim 5, wherein the movable side (17) is provided with an installation opening, a bending roller (25) having an axial direction parallel to the axial direction of the steering round shaft (18) is arranged in the installation opening, and the bending roller (25) is arranged to be rotatable around its axis and constitutes the movable side (17).
7. The bending device for the medical stent according to claim 6, wherein a curved avoiding surface (15) is formed on one side surface of the forming arm (14) facing the stamping base (2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110032485.2A CN112355101B (en) | 2021-01-12 | 2021-01-12 | Bending device for medical support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110032485.2A CN112355101B (en) | 2021-01-12 | 2021-01-12 | Bending device for medical support |
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| CN112355101A true CN112355101A (en) | 2021-02-12 |
| CN112355101B CN112355101B (en) | 2021-03-26 |
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| CN202110032485.2A Expired - Fee Related CN112355101B (en) | 2021-01-12 | 2021-01-12 | Bending device for medical support |
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| CN113084003A (en) * | 2021-03-05 | 2021-07-09 | 重庆市众钰顺科技有限公司 | Aluminum alloy stamping die for air conditioner shell production |
| CN113695436A (en) * | 2021-09-03 | 2021-11-26 | 广西恒达电机科技有限公司 | Automatic machining device for motor coil end-to-end sleeve |
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| CN112355101B (en) | 2021-03-26 |
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