CN113909929B - Intermediate bracket mechanism for processing super-long columnar workpiece - Google Patents
Intermediate bracket mechanism for processing super-long columnar workpiece Download PDFInfo
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- CN113909929B CN113909929B CN202111306562.5A CN202111306562A CN113909929B CN 113909929 B CN113909929 B CN 113909929B CN 202111306562 A CN202111306562 A CN 202111306562A CN 113909929 B CN113909929 B CN 113909929B
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- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
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Abstract
The invention relates to the technical field of workpiece processing, and discloses an intermediate bracket mechanism for processing an ultralong columnar workpiece, which comprises a ring frame and a rotary table, wherein the inner side surface of the ring frame is provided with a ring groove, the rotary table is rotatably arranged in the ring groove, the bottom of the ring frame is fixedly provided with a connecting seat, the rotary table is provided with an opening for inserting the workpiece, a sealed cavity is arranged inside the rotary table, a pressing medium is filled in the sealed cavity, a first positioning plate and an elastic pressing piece are arranged in the opening and are in dynamic sealing connection with the sealed cavity, the elastic pressing piece and the first positioning plate are in transmission connection through the pressing medium, a second positioning plate for pressing the workpiece is arranged on the rotary table, and the stroke of the second positioning plate for pressing the workpiece drives the workpiece to press the elastic pressing piece so that the first positioning plate presses the workpiece to complete workpiece positioning. The invention can effectively reduce the conditions of shaking and bending deformation of the overlong columnar workpiece in the machining process and improve the machining quality of the workpiece.
Description
Technical Field
The invention relates to the technical field of workpiece processing, in particular to an intermediate bracket mechanism for processing an overlong columnar workpiece.
Background
In machine manufacturing, the frequency of use of columnar workpieces is very high, and in particular, columnar workpieces are used in various fields, so the processing quality of the columnar workpieces is very important. In the columnar workpieces, the ultra-long columnar workpieces with the length reaching several meters exist, and due to the influence of the length, the difficulty of processing the ultra-long columnar workpieces is far greater than that of the short columnar workpieces.
The cylindrical workpiece can rotate to the workpiece in the processing process so as to be convenient to process the cylindrical workpiece.
The positioning device comprises a first supporting seat corresponding to one end of the columnar workpiece, a first pressing mechanism arranged beside the first supporting seat, a second supporting seat corresponding to the other end of the columnar workpiece, a second pressing mechanism and a rotary driving mechanism arranged beside the second supporting seat, wherein an output shaft of the rotary driving mechanism is detachably connected with the corresponding end of the columnar workpiece; the first supporting seat and the second supporting seat are arranged at intervals along the X direction, a first groove which is downwards sunken and used for positioning the corresponding end is formed in the first supporting seat, and a second groove which is downwards sunken and used for positioning the corresponding end is formed in the second supporting seat; the first supporting seat and the second supporting seat are respectively and rotatably connected with two supporting wheels for assisting the rotation of the columnar workpiece, and the two supporting wheels are respectively arranged on two sides of the corresponding end head in the Y direction; the first pressing mechanism is used for pressing the corresponding end of the columnar workpiece into the first groove or loosening the end, the second pressing mechanism is used for pressing the corresponding end of the columnar workpiece into the second groove or loosening the end, and the fixing of the columnar workpiece is realized by matching the V-shaped frame and the pressing mechanism, so that the efficiency of drilling the surface of the columnar workpiece is improved; in addition, the stepping motor and the supporting wheel are adopted to assist in realizing the indexing rotation of the columnar workpiece, so that the accuracy of the surface drilling processing of the columnar workpiece can be improved.
Above-mentioned utility model patent's positioner, compress tightly the both ends of column work piece through hold-down mechanism, thereby realize the fixed to the column work piece, then realize the rotation of column work piece through step motor and supporting wheel, to the higher column work piece of general length and hardness value, the processingquality of assurance column work piece that this processing mode can be fine, but to overlength column work piece, because length is longer, when the work piece is rotatory, if only carry out the fixed stay to the both ends of work piece, and the centre lacks fixedly and supports, it is in the course of working, the shake appears very easily in the work piece, the condition of bending deformation, thereby cause the processingquality of work piece unqualified.
Disclosure of Invention
The invention aims to provide an intermediate bracket mechanism for processing an overlong columnar workpiece, which is used for solving the defects in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme: the utility model provides an overlength column work piece processing is with middle bracket mechanism, is provided with the ring frame in ring groove and rotates the carousel that sets up at the ring groove including the medial surface, the bottom fixed mounting of ring frame has the connecting seat, set up on the carousel and supply work piece male opening, the inside of carousel is provided with sealed chamber, it has the medium of exerting pressure to fill in the sealed chamber, be provided with in the opening and carry out the casting die with sealed chamber dynamic seal's first locating plate and elasticity, the casting die is carried out to elasticity and first locating plate is connected through the medium transmission of exerting pressure, be provided with the second locating plate that is used for compressing tightly the work piece on the carousel, the stroke that the second locating plate compressed tightly the work piece orders about the work piece and exerts pressure so that first locating plate compresses tightly the work piece and accomplishes the work piece location.
In the intermediate bracket mechanism for processing the overlong columnar workpiece, the turntable is provided with a threaded hole, the threaded hole is screwed with a screw rod, the screw rod is fixedly provided with an operating nut and a rotating ball, the rotating ball is rotatably arranged in the second positioning plate, the operating nut is positioned between the outer side surface of the second positioning plate and the inner wall of the opening, and the operating nut is rotated to enable the second positioning plate to compress the workpiece.
According to the intermediate bracket mechanism for processing the overlong columnar workpiece, the closed cavity is provided with the first sliding port and the second sliding port, the sliding rod fixedly connected with the first positioning plate is arranged in the first sliding port in a dynamic sealing manner, and the elastic pressing piece is arranged in the second sliding port in a dynamic sealing manner.
The opening comprises an operation opening and a groove which are oppositely arranged and communicated, the first positioning plate and the second positioning plate are both positioned in the operation opening, the elastic pressing piece is positioned in the groove, the workpiece is positioned in a positioning hole formed by the first positioning plate, the second positioning plate and the groove in a surrounding mode, and when the workpiece is positioned, the inner wall of the groove is completely abutted to the outer surface of the workpiece.
In the intermediate bracket mechanism for processing the overlong columnar workpiece, the side surfaces of the workpiece extruded by the first positioning plate and the second positioning plate are both arc-shaped.
In the intermediate bracket mechanism for processing the ultra-long columnar workpiece, the number of the first positioning plates is even, the first positioning plates are symmetrically arranged on two sides of the second positioning plate, the number of the elastic pressing pieces is at least two, the elastic pressing pieces are arranged on the lower half part of the turntable, and the elastic pressing pieces and the second positioning plate are arranged in a right opposite mode.
The intermediate bracket mechanism for processing the overlong columnar workpiece is characterized in that the elastic pressing piece comprises a pressing column which is movably sealed in the second sliding port, one end, close to the groove, of the pressing column is rotatably provided with a roller, the outer surface of the roller is abutted to the outer surface of the workpiece, a supporting spring is fixedly connected between the other end of the pressing column and the inner wall of the closed cavity, and the minimum pressure value of deformation generated by the supporting spring is greater than the gravity of the workpiece.
In the intermediate bracket mechanism for processing the overlong columnar workpiece, the end face of the sliding rod, which is far away from the operation port, and the inner wall of the closed cavity are fixedly connected with the pressurizing spring.
In the intermediate bracket mechanism for processing the overlong columnar workpiece, the end surface of the sliding rod, which is far away from the operation opening, is an inclined surface.
In the intermediate bracket mechanism for processing the overlong columnar workpiece, the pressure applying medium is lubricating oil.
In the technical scheme, the intermediate bracket mechanism for processing the overlong columnar workpiece is characterized in that the connecting seat is arranged on the processing equipment and is positioned between the positioning devices at two ends of the columnar workpiece, then the columnar workpiece is inserted into the opening, the workpiece is extruded by operating the second positioning plate, the acting force of the workpiece is transmitted to the elastic pressing piece under the acting force of the second positioning plate, the elastic pressing piece transmits the acting force to the first positioning plate, so that the first positioning plate also extrudes the workpiece, finally the workpiece is fixed under the combined action of the first positioning plate, the second positioning plate and the elastic pressing piece, and when the positioning devices at the end part of the workpiece drive the workpiece to rotate, the turntable is arranged on the circular ring frame in a rotating mode, so that the workpiece drives the turntable to rotate along the circular ring groove. Compared with the prior art, the invention can provide effective reinforcement and support for the middle position of the workpiece under the condition of not influencing the rotation of the workpiece, and can effectively reduce the conditions of shaking and bending deformation of the workpiece in the processing process for the super-long columnar workpiece, thereby improving the processing quality of the workpiece.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
Fig. 1 is a schematic structural diagram of a first view angle of an intermediate bracket mechanism for processing an ultra-long cylindrical workpiece according to an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of part A according to an embodiment of the present invention;
fig. 3 is a structural schematic diagram of a second view angle of the intermediate bracket mechanism for processing the ultra-long cylindrical workpiece according to the embodiment of the present invention;
FIG. 4 is a front view of an intermediate bracket mechanism for machining an ultra-long cylindrical workpiece according to an embodiment of the present invention;
FIG. 5 is a partial cross-sectional view provided by an embodiment of the present invention;
FIG. 6 is a front sectional view of an intermediate bracket mechanism for machining an ultra-long cylindrical workpiece according to an embodiment of the present invention;
FIG. 7 is an enlarged view of the part B according to the embodiment of the present invention;
fig. 8 is an enlarged schematic structural diagram of a part C according to an embodiment of the present invention.
Description of reference numerals:
1. a circular ring frame; 101. an upper semicircular ring; 102. a lower semicircular ring; 103. a circular groove; 2. a connecting seat; 3. a turntable; 301. an operation port; 302. a groove; 303. a closed cavity; 304. a threaded hole; 305. a first sliding port; 306. a second sliding port; 4. a connecting mechanism; 401. a fixing plate; 402. a bolt; 5. positioning holes; 6. a first positioning plate; 7. a slide bar; 8. a second positioning plate; 801. a limiting hole; 802. mounting holes; 9. a screw; 10. rotating the ball; 11. operating the nut; 12. a one-way oil inlet; 13. a roller; 14. applying a pressure column; 15. a ball bearing; 16. a pressurizing spring; 17. a compression spring; 18. a seal ring; 19. a balancing weight; 20. connecting sleeves; 21. a support spring; 22. a rotating shaft.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 8, an intermediate bracket mechanism for processing an ultra-long columnar workpiece according to an embodiment of the present invention includes a ring frame 1 having a ring groove 103 on an inner side surface thereof, and a turntable 3 rotatably disposed in the ring groove 103, a connecting seat 2 is fixedly mounted at a bottom of the ring frame 1, the turntable 3 is provided with an opening for inserting a workpiece, the turntable 3 is provided with a sealed cavity 303 inside, the sealed cavity 303 is filled with a pressure medium, the opening is provided with a first positioning plate 6 and an elastic pressure applying member which are in dynamic sealing connection with the sealed cavity 303, the elastic pressure applying member and the first positioning plate 6 are in transmission connection through the pressure medium, the turntable 3 is provided with a second positioning plate 8 for pressing the workpiece, and a stroke of the second positioning plate 8 for pressing the workpiece drives the workpiece to apply pressure to the elastic pressure applying member so that the first positioning plate 6 presses the workpiece to complete positioning of the workpiece.
Specifically, the intermediate bracket mechanism for processing the overlong columnar workpiece, provided by the invention, is used for providing effective reinforcement and support for the middle position of the workpiece in the processing process of the overlong columnar workpiece, the number of the intermediate bracket mechanisms can be reasonably set according to the specific material and length of the workpiece, the workpiece in the embodiment is the overlong columnar workpiece, and the dynamic seal means the connection relationship of sliding and sealing. The connecting seat 2 is used for being fixedly connected with specific processing equipment, the fixing mode can be realized by clamping, bolt connection and the like, as long as the connecting seat 2 and the processing equipment can be relatively and fixedly connected, the connecting seat 2 and the ring frame 1 can be fixedly connected by welding, a ring groove 103 arranged on the ring frame 1 provides a track for the turntable 3, so that the turntable 3 can rotate along the ring groove 103, when the workpiece is positioned in an opening of the turntable 3, the central axis of the workpiece is positioned at the center of the turntable 3 to ensure that the workpiece can rotate together with the turntable 3, the first positioning plate 6 and the second positioning plate 8 are used for extruding the outer surface of the workpiece to realize the positioning of the workpiece, the elastic pressing piece is positioned below the workpiece and is subjected to downward acting force of the workpiece, the first positioning plate 6 and the elastic pressing piece are both in dynamic sealing connection with a closed cavity 303 in the turntable 3, and a pressing medium filled in the closed cavity 303 is used for transferring the acting force between the first positioning plate 6 and the elastic pressing piece, when the elastic pressing piece is extruded by the workpiece, the extrusion force can be transmitted to the first positioning plate 6 through the pressing medium, the second positioning plate 8 is an active force application part for positioning the workpiece, then the workpiece can transmit the acting force of the second positioning plate 8 to the elastic pressing piece, when the workpiece needs to be positioned, the second positioning plate 8 only needs to be operated, and the positioning is very convenient to complete after the workpiece is extruded to a set position. The working principle of the intermediate bracket mechanism for processing the super-long columnar workpiece provided by the invention is that firstly, the workpiece is inserted into the opening, the position of the workpiece is adjusted, preferably, the bracket mechanism is positioned at the middle position of the workpiece, at the moment, the workpiece is positioned above the elastic pressing piece, downward pressing force is provided for the elastic pressing piece, then the second positioning plate 8 is operated to press the outer surface of the workpiece downwards, after the workpiece is pressed, the downward acting force is increased, at the moment, the elastic pressing piece is stressed and contracted, the acting force is transmitted to the first positioning plate 6 through a pressing medium, the pressing force of the workpiece is increased by the second positioning plate 8 and the elastic pressing piece along with the continuous downward pressing of the second positioning plate 8, after the first positioning plate 6 is continuously pressed by the pressing medium, the workpiece is gradually close to the workpiece until the workpiece is abutted against the outer surface of the workpiece, then the workpiece is pressed, and after the position of the workpiece reaches the set position (namely, when the central axis of the workpiece is positioned at the center of the turntable 3), the operation of the second positioning plate 8 can be stopped, the workpiece is fixed at the moment, the positioning work of the workpiece is completed, then the two ends of the workpiece are positioned through the positioning devices at the two ends of the workpiece, the workpiece is rotated through the driving mechanism, and the workpiece rotates along the circular groove 103 together with the turntable 3 after being rotated. In the prior art, only the two ends of a workpiece are positioned, the middle position of the workpiece is not fixed or supported, and the workpiece is easy to shake and bend and deform during rotation, so that the machining quality of the workpiece is unqualified. The invention can provide effective reinforcement and support for the middle position of the workpiece under the condition of not influencing the rotation of the workpiece by arranging the fixing and supporting points in the middle of the workpiece.
In this embodiment, install on the processing equipment through connecting seat 2, and be located between the positioner at column work piece both ends, later insert the column work piece in the opening, and extrude the work piece through controlling second locating plate 8, the work piece gives the pressure piece for elasticity with this effort transmission under the effort of second locating plate 8, the pressure piece is exerted to elasticity again gives effort transmission to first locating plate 6, thereby make first locating plate 6 also extrude the work piece, at last at first locating plate 6, the work piece is fixed under the combined action of second locating plate 8 and elasticity pressure piece, when the positioner of work piece tip drives the work piece rotation, because carousel 3 rotates and sets up on the ring frame, make the work piece drive carousel 3 along ring groove 103 rotatory together. Compared with the prior art, the invention can provide effective reinforcement and support for the middle position of the workpiece under the condition of not influencing the rotation of the workpiece, and can effectively reduce the conditions of shaking and bending deformation of the workpiece in the processing process for the super-long columnar workpiece, thereby improving the processing quality of the workpiece.
Meanwhile, when the middle of the workpiece is positioned, the multi-point pressing on the workpiece can be completed only by operating one second positioning plate 8, so that the operation is convenient, the time is saved, and the pressure on the unit area of the workpiece can be effectively increased, thereby improving the friction force between the positioning plate and the workpiece and ensuring that the fixing effect of the workpiece is better.
In this embodiment, firm in order to guarantee the location between work piece and the middle bracket mechanism, should guarantee that carousel 3 can rotate along ring groove 103 smoothly, for this reason, roll between the outer peripheral face of carousel 3 and the inner wall of ring groove 103 and be provided with a plurality of balls 15, when carousel 3 rotates, will drive ball 15 and roll in ring groove 103 to can effectively reduce the frictional force between carousel 3 and the ring groove 103, can effectively guarantee the smooth rotation of carousel 3.
Further, the outer peripheral face of carousel 3 is provided with the spacing groove, and ball 15 is arranged in the spacing groove, can carry on spacingly to ball 15, prevents ball 15 at rolling in-process horizontal hunting, improves stability.
In this embodiment, the ring frame 1 includes upper semicircular ring 101 and lower semicircular ring 102, and upper semicircular ring 101 and lower semicircular ring 102 are connected through four coupling mechanism 4 detachably, and four coupling mechanism 4 are located the both ends junction of upper semicircular ring 101 and lower semicircular ring 102 respectively, and coupling mechanism 4 includes fixed mounting at the fixed plate 401 of upper semicircular ring 101 and lower semicircular ring 102 tip, and it has bolt 402 to peg graft on fixed plate 401, can accomplish the fixed of upper semicircular ring 101 and lower semicircular ring 102 through screwing up bolt 402. Through setting up ring frame 1 to last semicircle ring 101 and lower semicircle ring 102, can realize the installation of carousel 3, conveniently install carousel 3 in the ring groove 103.
In the present embodiment, the second positioning plate 8 can compress the workpiece in various ways, in a preferred embodiment, the rotary plate 3 is provided with a threaded hole 304, a screw 9 is screwed in the threaded hole 304, an operating nut 11 and a rotating ball 10 are fixedly arranged on the screw 9, the operating nut 11 is an external force application part, the operating nut 11 can be screwed by a wrench or other tools, the rotating ball 10 is rotatably arranged in the second positioning plate 8, the rotating ball 10 is used for limiting and pressing the second positioning plate 8, the operating nut 11 is located between an outer side surface of the second positioning plate 8 and an inner wall of the opening, and the operating nut 11 is rotated to enable the second positioning plate 8 to compress the workpiece. By screwing the operating nut 11, the operating nut 11 can be screwed out or screwed into the threaded hole 304, the second positioning plate 8 is screwed out to compress a workpiece, specifically, the operating nut 11 is screwed, the operating nut 11 drives the screw rod 9 to rotate together, the screw rod 9 drives the rotating ball 10 to rotate in the second positioning plate 8 after rotating, the screw rod 9 is screwed out from the threaded hole 304, in order to prevent the second positioning plate 8 from rotating along with the rotation, the second positioning plate 8 can be limited by hands or tools, and at the moment, the second positioning plate 8 continuously moves towards the workpiece along with the extension of the screw rod 9 until the workpiece is compressed.
In this embodiment, the second positioning plate 8 is provided with a limiting hole 801 through which the screw 9 and the rotating ball 10 pass, the limiting hole 801 is matched with the screw 9 and the rotating ball 10, the bottom ends of the rotating ball 10 and the screw 9 are rotatably disposed in the limiting hole 801, and the limiting hole 801 passes through a side surface of the second positioning plate 8, so that the screw 9 and the rotating ball 10 can be mounted in the limiting hole 801 from the side surface of the second positioning plate 8, which is very convenient.
Further, a blocking plate (not shown) for blocking the limiting hole 801 is configured on the second positioning plate 8, a plurality of mounting holes 802 are formed in the side surface of the second positioning plate 8, screws can be screwed into the mounting holes 802, and the blocking plate can be mounted on the side surface of the second positioning plate 8 through the screws, so that the second positioning plate 8 can be prevented from being separated from the rotating ball 10. And when the mounting is accomplished to the shutoff board, can with the surface butt of rolling ball 10, make the center of rolling ball 10 fall on the central line of second locating plate 8, can make more even distribution of the effort of rolling ball 10 to second locating plate 8 on second locating plate 8, improve the fixed effect of second locating plate 8 to the work piece.
In this embodiment, the sealed cavity 303 is provided with a first sliding port 305 and a second sliding port 306, a sliding rod 7 fixedly connected with the first positioning plate 6 is arranged in the first sliding port 305 in a dynamic seal manner, the dynamic seal arrangement between the first positioning plate 6 and the sealed cavity 303 is realized through the dynamic seal connection between the sliding rod 7 and the first sliding port 305, and the elastic pressing member is arranged in the second sliding port 306 in a dynamic seal manner. The first sliding port 305 and the second sliding port 306 both have a certain length, so as to ensure the stability of the sliding rod 7 and the elastic pressing member, the sliding rod 7 and the elastic pressing member are sleeved with a sealing ring 18, and the sealing ring 18 is used to realize sealing connection (the sealing is prior art and is not described in detail).
In this embodiment, the opening includes operation mouth 301 and recess 302 that sets up relatively and be linked together, first locating plate 6 and second locating plate 8 all are located operation mouth 301, operation mouth 301 twists operating nut 11 in order to make things convenient for, and provide the activity space for first locating plate 6 and second locating plate 8, elasticity is executed the pressure and is located recess 302, the inner wall of recess 302 is the arc, and the arc looks adaptation of the outer surface of curved radian and work piece, the work piece is located first locating plate 6, second locating plate 8 and recess 302 surround locating hole 5, when the work piece is accomplished the location, the inner wall of recess 302 completely butts with the outer surface of work piece, also promptly elasticity is executed the pressure and is located second sliding port 306 completely. Whether the positioning of the workpiece is completed or not can be judged by observing whether the inner wall of the groove 302 is completely abutted with the outer surface of the workpiece or not, the judging mode is very simple, and when the inner wall of the groove 302 is completely abutted with the outer surface of the workpiece, the contact area between the outer surface of the workpiece and the turntable 3 can be increased, so that the friction force of the workpiece can be increased, and the positioning firmness of the workpiece is further improved.
Further, in the present embodiment, the side surfaces of the first positioning plate 6 and the second positioning plate 8, which press the workpiece, are both arc-shaped. The arc design of the side surfaces of the first positioning plate 6 and the second positioning plate 8 is utilized, so that the contact area with the outer surface of a workpiece can be increased, and the firmness of positioning the workpiece is further improved.
In this embodiment, the number of the first positioning plates 6 is even, the first positioning plates are symmetrically located on two sides of the second positioning plate 8, the number of the elastic pressing members is at least two, the elastic pressing members are located on the lower half portion of the turntable 3, the elastic pressing members are symmetrical about the center line of the turntable 3, the elastic pressing members are arranged opposite to the second positioning plate 8, and the downward pressure applied to the workpiece by the second positioning plate 8 can be directly transmitted to the elastic pressing members. Before the workpiece is positioned, one end of each elastic pressing piece protrudes out of the groove 302, and the number of the elastic pressing pieces is at least two, so that when the workpiece is inserted into the opening, the workpiece can be stably positioned at the top of each elastic pressing piece, the workpiece cannot shake left and right, and convenience and stability in moving the workpiece are provided; and through the arrangement mode of the elastic pressing piece, the second positioning plate 8 and the first positioning plate 6, the stress of the workpiece can be more balanced, and the firmness of the workpiece and the stability during rotation are improved.
Furthermore, the elastic pressing piece comprises a pressing column 14 which is movably sealed and arranged in the second sliding port 306, the sealing ring 18 is arranged on the pressing column 14, one end, close to the groove 302, of the pressing column 14 is rotatably provided with a roller 13, the outer surface of the roller 13 is abutted against the outer surface of the workpiece, because the workpiece needs to be inserted into the opening before the workpiece is positioned, the workpiece is positioned at the top of the elastic pressing piece at the moment, the position of the workpiece is adjusted by moving the workpiece, and the friction force between the workpiece and the elastic pressing piece can be greatly reduced by arranging the roller 13, so that the position of the workpiece is moved more easily, and the physical strength of an operator can be greatly saved; a supporting spring 21 is fixedly connected between the other end of the pressure application column 14 and the inner wall of the closed cavity 303, the minimum pressure value of the deformation of the supporting spring 21 is greater than the gravity of the workpiece, the supporting spring 21 is used for supporting the workpiece, when the workpiece is placed on the elastic pressure application piece, the elastic pressure application piece can not completely move into the second sliding port 306 by using the elastic force of the supporting spring 21, and the roller 13 is ensured to be always contacted with the outer surface of the workpiece when the workpiece is moved, so that the convenience in moving the workpiece is improved; the extrusion force of the second positioning plate 8 on the workpiece can be improved by utilizing the elastic force of the supporting spring 21, the extrusion force on the workpiece is ensured to be large enough, so that the workpiece is fixed firmly, and the supporting spring 21 can be continuously compressed along with the continuous extrusion of the second positioning plate 8 on the workpiece, so that the extrusion force of the second positioning plate 8 on the workpiece is larger and larger until the roller 13 completely enters the second sliding port 306; simultaneously, under supporting spring 21's effect, when the work piece is accomplished the processing, when cancelling second locating plate 8 extrusion to the work piece, the work piece can be by jack-up, and each first locating plate 6 moves to the outside this moment for locating hole 5 grow, second locating plate 8 and first locating plate 6 all not with the surface contact of work piece, thereby can be very convenient take out in the middle bracket mechanism with the work piece, and the next time of the convenient work piece of bigger locating hole 5 inserts.
In this embodiment, the roller 13 is rotatably connected to the pressure applying column 14 in such a manner that a slot is formed in an end of the pressure applying column 14, rotating holes are symmetrically formed in the slot, a rotating shaft 22 is rotatably disposed in the rotating holes, the rotating shaft 22 is divided into two parts, an extrusion spring 17 is connected to the middle of the rotating hole, the rotating shaft 22 can be conveniently installed in the rotating holes by the extrusion spring 17, a connecting sleeve 20 is rotatably sleeved on the rotating shaft 22, the connecting sleeve 20 is used for connecting the two divided rotating shafts 22, and the roller 13 is rotatably sleeved on the connecting sleeve 20. The rotation shaft 22 in this manner does not obstruct the pressing column 14 from completely entering the second sliding port 306.
Furthermore, a pressurizing spring 16 is fixedly connected between the end surface of the sliding rod 7 far away from the operation opening 301 and the inner wall of the closed cavity 303. Due to the existence of the pressurizing spring 16, the pressure value in the closed cavity 303 can realize the movement of the first positioning plate 6 only by overcoming the self elasticity of the pressurizing spring 16, and the increase of the pressure value in the closed cavity 303 needs the second positioning plate 8 to have a larger pressure value on the workpiece, so that the pressure applied by the second positioning plate 8 on the workpiece when the first positioning plate 6 abuts against the workpiece is improved, and the fixing effect of the second positioning plate 8 on the workpiece can be further improved; meanwhile, the extrusion force of the first positioning plate 6 on the workpiece can be larger due to the increase of the pressure value in the closed cavity 303, so that the extrusion force on the workpiece is improved in all directions.
Meanwhile, the internal pressure of the closed cavity 303 is increased through the transmission mode of the first positioning plate 6 and the elastic pressing piece and the pressurizing spring 16, so that the centrifugal force generated by the first positioning plate 6 and the elastic pressing piece when the turntable 3 rotates can be overcome, and the workpiece can be firmly fixed in the rotating process of the turntable 3.
Furthermore, the end face of the slide bar 7 far away from the operation opening 301 is an inclined face, and the design of the inclined face can increase the area of the end face of the slide bar 7 far away from the operation opening 301, improve the stress of the slide bar 7, increase the reaction speed of the slide bar 7 sliding towards the outside, and improve the fixing effect of the first positioning plate 6 on the workpiece.
In this embodiment, the pressing medium is lubricating oil, and lubricating oil not only can lubricate the sliding rod 7 and the elastic pressing member to make the sliding thereof smoother, but also can absorb heat generated during rotation to lower the temperature of the middle bracket mechanism on the premise of pressing.
In this embodiment, a one-way oil inlet 12 is provided on the turntable 3, and the lubricating oil is filled through the one-way oil inlet 12.
In this embodiment, the turntable 3 is fixedly provided with the weight-balancing block 19, the center of gravity of the weight-balancing block 19 falls on the central axis of the screw 9, and the turntable 3 can be automatically restored to the initial position by using the weight-balancing block 19 (the second positioning plate 8 is located right above, and the elastic pressing member is located right below), so that the next work piece can be conveniently placed in the opening.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (9)
1. The utility model provides an overlength column is middle bracket mechanism for work piece processing, includes that the medial surface is provided with ring frame (1) of ring groove (103) and rotates carousel (3) of setting in ring groove (103), the bottom fixed mounting of ring frame (1) has connecting seat (2), set up on carousel (3) and supply work piece male opening, its characterized in that: a closed cavity (303) is arranged in the rotary table (3), a pressing medium is filled in the closed cavity (303), a first positioning plate (6) and an elastic pressing piece which are in movable sealing connection with the closed cavity (303) are arranged in the opening, the elastic pressing piece and the first positioning plate (6) are in transmission connection through the pressing medium, a second positioning plate (8) used for pressing a workpiece is arranged on the rotary table (3), and the workpiece is pressed by the elastic pressing piece through the stroke of pressing the workpiece by the second positioning plate (8) so that the workpiece is pressed by the first positioning plate (6) to complete workpiece positioning;
be provided with screw hole (304) on carousel (3), spiro union has screw rod (9) in screw hole (304), fixed operating nut (11) and rolling ball (10) of being provided with on screw rod (9), rolling ball (10) rotate and set up in second locating plate (8), operating nut (11) be located the lateral surface of second locating plate (8) with between the open-ended inner wall, rotate operating nut (11) are so that second locating plate (8) compress tightly the work piece.
2. The intermediate bracket mechanism for processing an ultralong columnar workpiece according to claim 1, characterized in that: a first sliding opening (305) and a second sliding opening (306) are formed in the sealed cavity (303), a sliding rod (7) fixedly connected with the first positioning plate (6) is arranged in the first sliding opening (305) in a dynamic sealing mode, and the elastic pressing piece is arranged in the second sliding opening (306) in a dynamic sealing mode.
3. The intermediate bracket mechanism for processing an ultralong columnar workpiece according to claim 2, characterized in that: the opening comprises an operation opening (301) and a groove (302) which are oppositely arranged and communicated, the first positioning plate (6) and the second positioning plate (8) are both positioned in the operation opening (301), the elastic pressing piece is positioned in the groove (302), the workpiece is positioned in a positioning hole (5) defined by the first positioning plate (6), the second positioning plate (8) and the groove (302), and when the workpiece is positioned, the inner wall of the groove (302) is completely abutted to the outer surface of the workpiece.
4. The intermediate bracket mechanism for processing an ultralong columnar workpiece according to claim 1, characterized in that: the side surfaces of the first positioning plate (6) and the second positioning plate (8) extruding the workpiece are arc-shaped.
5. The intermediate bracket mechanism for processing an ultralong columnar workpiece according to claim 3, characterized in that: the number of the first positioning plates (6) is even, the first positioning plates are symmetrically arranged on two sides of the second positioning plate (8), at least two elastic pressing pieces are arranged on the lower half part of the rotary table (3), and the elastic pressing pieces and the second positioning plate (8) are arranged in a positive opposite mode.
6. The intermediate bracket mechanism for processing an ultralong columnar workpiece according to claim 5, characterized in that: the elastic pressing piece comprises a pressing column (14) which is movably sealed and arranged in the second sliding port (306), a roller (13) is rotatably arranged at one end, close to the groove (302), of the pressing column (14), the outer surface of the roller (13) is abutted to the outer surface of a workpiece, a supporting spring (21) is fixedly connected between the other end of the pressing column (14) and the inner wall of the closed cavity (303), and the minimum pressure value of deformation generated by the supporting spring (21) is greater than the gravity of the workpiece.
7. The intermediate bracket mechanism for processing an ultralong columnar workpiece according to claim 6, characterized in that: and a pressurizing spring (16) is fixedly connected between the end surface of the sliding rod (7) far away from the operation port (301) and the inner wall of the closed cavity (303).
8. The intermediate bracket mechanism for processing an ultralong columnar workpiece according to claim 7, characterized in that: the end face, far away from the operation opening (301), of the sliding rod (7) is an inclined face.
9. The intermediate bracket mechanism for processing an ultralong columnar workpiece according to claim 1, characterized in that: the pressurizing medium is lubricating oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111306562.5A CN113909929B (en) | 2021-11-05 | 2021-11-05 | Intermediate bracket mechanism for processing super-long columnar workpiece |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111306562.5A CN113909929B (en) | 2021-11-05 | 2021-11-05 | Intermediate bracket mechanism for processing super-long columnar workpiece |
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| Publication Number | Publication Date |
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| CN113909929A CN113909929A (en) | 2022-01-11 |
| CN113909929B true CN113909929B (en) | 2022-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111306562.5A Active CN113909929B (en) | 2021-11-05 | 2021-11-05 | Intermediate bracket mechanism for processing super-long columnar workpiece |
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