CN114700788B - Multifunctional clamp for machining numerical control lathe - Google Patents
Multifunctional clamp for machining numerical control lathe Download PDFInfo
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- CN114700788B CN114700788B CN202210346176.7A CN202210346176A CN114700788B CN 114700788 B CN114700788 B CN 114700788B CN 202210346176 A CN202210346176 A CN 202210346176A CN 114700788 B CN114700788 B CN 114700788B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- 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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
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- B—PERFORMING OPERATIONS; TRANSPORTING
- 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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating tools or work
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention relates to the technical field of lathe machining equipment, in particular to a multifunctional clamp for machining a numerical control lathe, which comprises an installation disc, wherein a second blind hole is formed in the top surface of the installation disc, a plurality of sliding grooves which are centrosymmetric are formed in the top surface of the installation disc, a clamping component is arranged inside each sliding groove, a push disc is arranged inside each second blind hole, a locking component is arranged between each push disc and the corresponding clamping component, an annular groove is formed in the outer side surface of the installation disc, a fixing ring which is connected with the annular groove in a sealing and rotating mode is arranged inside each annular groove, the outer side of each fixing ring is fixedly communicated with a cutting fluid conveying pipe in a sealing mode, a plurality of third through holes which are communicated with the second blind holes are formed inside each annular groove, the push discs can be pushed to lock the locking components after cutting fluid enters the second blind holes, and therefore workpieces clamped by the clamping components are prevented from loosening. The invention has the advantages of ingenious structure and simple operation, can simplify the clamping and the dismounting of the workpiece to be processed, can also reasonably arrange the use of cutting fluid, and is very suitable for the batch production of the processing of the inner hole of the tubular workpiece.
Description
Technical Field
The invention relates to the technical field of lathe machining equipment, in particular to a multifunctional clamp for machining of a numerical control lathe.
Background
Among various metal cutting machine tools, the lathe is the most widely used one, the lathe can use a turning tool to perform turning processing on a workpiece, and can also use a drill, a reamer, a screw tap and a knurling tool to perform operations such as drilling, reaming, tapping and the like, the turning processing technology is continuously developing towards high efficiency and high quality, and various lathe fixtures are adopted for different turning processing in order to improve the turning processing efficiency.
At present, the lathe fixture for turning the inner hole of the tubular workpiece mostly adopts a three-jaw chuck, the three-jaw chuck is used for turning, the clamping and the dismounting of the workpiece are all operated by hands of workers each time, so that clamping jaws are loosened or clamped to finish the clamping and the dismounting of the workpiece, and the turning efficiency is greatly influenced in the process.
In addition, in the process of machining the inner hole of the tubular workpiece by turning, cutting fluid is often adopted to be matched for turning so as to achieve the purposes of lubrication, cooling, cleaning and rust prevention, in the prior art, the cutting fluid is generally sprayed into the inner hole of the workpiece from the outside of the workpiece through a separate pumping system and a conveying pipeline, so that not only is the discharge of cutting chips inconvenient, but also the pipeline device for conveying the cutting fluid occupies the space between the clamp and the tool rest.
Therefore, how to rapidly clamp and disassemble a workpiece in the turning process, and more conveniently and reasonably configure the use of the cutting fluid, and improve the turning efficiency is a problem to be solved by those skilled in the art at present.
Disclosure of Invention
The invention provides a multifunctional clamp for machining a numerical control lathe, which aims to solve the problems that workpieces cannot be clamped and disassembled quickly and cutting fluid cannot be configured more conveniently and reasonably in turning machining in the prior art and improve the production efficiency of batch machining.
The technical scheme of the invention is as follows:
the invention provides a multifunctional clamp for machining a numerical control lathe, which comprises an installation disc, wherein a second blind hole is formed in the top surface of the installation disc, a plurality of sliding grooves which are symmetrical about the center of the second blind hole are formed in the top surface of the installation disc along the radial direction of the installation disc, and a clamping assembly is arranged inside each sliding groove; a push disc in sealing sliding connection with the second blind hole is arranged in the second blind hole, and a locking assembly is arranged between the push disc and the clamping assembly; an annular groove is formed in the outer side surface of the mounting disc, a fixing ring in sealing and rotating connection with the annular groove is arranged inside the annular groove, the outer side of the fixing ring is fixedly communicated with an external cutting fluid conveying pipe in a sealing mode, and a plurality of third through holes communicated with the second blind holes are formed inside the annular groove; cutting fluid with certain pressure can push the pushing disc to enable the locking assembly to lock the clamping assembly after entering the second blind hole through the pipe joint, and therefore loosening of workpieces clamped by the clamping assembly is avoided.
Furthermore, the clamping assembly comprises a sliding chute, a balancing weight which is connected with the sliding chute in a sliding manner is arranged in the sliding chute, a sliding rail which is matched with the side surface of the sliding chute to slide is arranged at the bottom of the balancing weight, and the outer side surface of the sliding rail is matched with the inner side surface of the sliding chute to slide; the annular draw-in groove of ring form has been seted up to the medial surface of balancing weight, and the inside of draw-in groove is equipped with the adjustment subassembly, and one side that the balancing weight medial surface was kept away from to the adjustment subassembly is equipped with fixed connection's stay cord with it, and the both ends of stay cord are located the inboard relative one side of balancing weight and are equipped with the fixture block with stay cord fixed connection, and the lateral surface of fixture block is close to the position and the stay cord fixed connection of both ends tip, can adjust the distance between the medial surface of fixture block and balancing weight through the adjustment subassembly.
Furthermore, the adjusting component comprises a clamping groove, a second through hole penetrating through the outer side surface of the balancing weight is formed in the clamping groove, an adjusting rod connected with the second through hole through threads is arranged in the second through hole, and an inner hexagonal wrench jack is formed in one end, close to the outer side of the balancing weight, of the adjusting rod; the adjusting rod is provided with a pull rod rotatably connected with the adjusting rod at one end close to the inner side of the balancing weight, and one end of the pull rod facing the inner side of the balancing weight is hinged with the middle part of the pull rope.
Furthermore, the fixture block is made of rubber synthetic material with better strength and certain elasticity, and the inner side surface of the fixture block is provided with a smooth guide surface which diffuses outwards; the outer side surface of each clamping block is provided with a guide groove, and in the working process, the inner side surface of the guide groove on the outer side of one clamping block is coupled with the side surface of a pull rope fixedly connected to the adjacent clamping block.
Further, the locking subassembly includes the slide rail, and the downside of slide rail is for being equipped with the flank of tooth of cockscomb structure, and the inclined plane of the flank of tooth of cockscomb structure is outside, and vertical face is towards the axle center direction of mounting disc, and the downside that the upside that pushes away the dish corresponds the slide rail is equipped with and pushes away dish fixed connection's rack, and the rack corresponds slide rail cooperation slidable mounting in the inside of spout, and the upper surface of rack is for the flank of tooth that can mesh with the slide rail downside.
Furthermore, a first through hole is formed in the center of the push disc, a guide rod in sealing sliding connection with the first through hole is arranged inside the first through hole, the lower end face of the guide rod is fixedly connected with the bottom face of the second blind hole in a detachable mode, a stop disc fixedly connected with the guide rod is arranged on the upper end face of the guide rod, a plurality of elastic sheets are uniformly distributed on the lower side face of the stop disc, the elastic sheets are in sliding connection with the lower side face of the stop disc, and the lower side face of each elastic sheet is in sliding connection with the upper side face of the push disc.
Furthermore, the outer side surface of the guide rod is provided with a plurality of uniformly distributed fourth through holes, the fourth through holes are positioned on the inner side surface of the first through hole in the center of the push disc in a natural state, the upper end surface of the guide rod is provided with a third blind hole penetrating through the stop disc, and the inner wall of the third blind hole is communicated with the fourth through hole.
Further, the mounting disc sets up to cylindrical, and first blind hole has been seted up to the bottom of mounting disc.
The invention has the following beneficial effects:
when the stop disc is used, the mounting disc is detachably and fixedly mounted on a main shaft of a machine tool through the first blind hole, the pipe joint is fixedly connected with an external cutting fluid conveying pipe in a sealing manner, and a tubular workpiece to be processed is inserted into the inner side surface of the clamping block from the guide surface, so that the end surface of the tubular workpiece is correspondingly attached to the upper end surface of the stop disc; the clamping blocks are elastic, so that the workpiece to be machined can not fall off when being inserted into the three clamping blocks, the structure realizes the function of simple, convenient and quick operation, simplifies the clamping process of the workpiece to be machined, reduces the technical requirements on operators, and saves the time for clamping the workpiece to be machined.
The pumping system is started to continuously convey the cutting fluid to the inside of the ring groove through the pipe joint, the cutting fluid can enter the inside of the second blind hole through the third through hole, the cutting fluid can continuously push the push disc to slide upwards along the guide rod in the second blind hole, after the push disc slides upwards, the inner side surface of the first through hole can slide to the upper side of the fourth through hole, so that the cutting fluid enters the inside of the fourth through hole, passes through the inside of the third blind hole in the upper end surface of the guide rod, is sprayed out of the upper surface of the stop disc, finally enters the inside of the tubular workpiece and flows out from inside to outside; the structure realizes reasonable arrangement of the cutting fluid, so that not only is the discharge of chips of a workpiece to be machined in the turning process facilitated, but also the working space between the clamp and the tool rest is prevented from being occupied by a pipeline device for conveying the cutting fluid.
When the push disc slides upwards, the push disc can drive the rack to overcome the elasticity of the elastic sheet when sliding upwards, so that the rack is meshed with the lower side surface of the sliding rail, and the balancing weight is prevented from sliding towards the center of the mounting disc; the structure ingeniously utilizes the kinetic energy of the cutting fluid to realize the unidirectional locking of the balancing weight, and the phenomenon that the balancing weight slides inwards under an unexpected condition to cause insufficient clamping force and become loose is avoided.
The lathe spindle is started, the lathe spindle can drive the mounting disc to integrally rotate after rotating, and the fixing ring which is arranged in the annular groove on the outer side surface of the mounting disc in a matched mode cannot rotate along with the mounting disc, so that external cutting fluid can be continuously conveyed into the annular groove through the pipe joint; when the lathe spindle drives the mounting disc to rotate, the balancing weight can generate centrifugal force along with the rotation of the mounting disc under the action of inertia, so that the balancing weight can slide to the outer side of the mounting disc along the radial direction of the mounting disc through the sliding rail and the sliding groove, the balancing weight drives the corresponding clamping blocks to fold towards the middle through the pull rope when sliding towards the outer side, the three symmetrically-arranged clamping blocks can automatically clamp a workpiece when folding towards the middle, the workpiece is automatically centered while being clamped, the axial lead of the workpiece is coincided with the rotation center of the spindle, the automatic centering of workpiece clamping is realized through the mutual matching of the three symmetrically-arranged clamping blocks, the manual calibration time of a worker during clamping is saved, and the operation difficulty of a technical worker is also reduced.
In the course of the work, when the balancing weight outwards slided to extreme position, the both ends terminal surface of fixture block and the terminal surface of the fixture block adjacent to it can laminate and extrude to restricted the balancing weight and continued to slide to the outside, avoided the balancing weight to throw away the inside of mounting disc spout with the balancing weight at the centrifugal force that produces when the high-speed rotation in the course of the work, thereby initiation accident.
In treating the processing work piece when carrying out the clamping, if the clamping force of discovery fixture block under to the natural state of work piece is not enough, perhaps the clamping force is too big, thereby when leading to the unable inboard that inserts the fixture block of work piece, can be through twisting the adjusting lever, thereby the adjusting lever is in the inside degree of depth of second through-hole, the adjusting lever is close to second through-hole inner more, the fixture block natural state will be just big more from the distance of relative balancing weight with it down, thereby make the space in the middle of the fixture block of mutually supporting also increase, and then make the clamping force reduce, and on the same principle, the adjusting lever is close to second through-hole outer end more, the clamping force can increase.
After once processing is finished, only the rotation of the main shaft needs to be stopped and the pumping of the cutting fluid needs to be closed, when the cutting fluid is closed, the external pumping system can not push the cutting fluid into the second blind hole, the cutting fluid can not continuously push the push disc, the elastic sheet can automatically push the push disc downwards, the push disc is far away from the stop disc, so that the rack is separated from the lower side surface of the sliding rail, the locking of the balancing weight to the center sliding of the mounting disc is relieved, and the workpiece can be pulled out with proper force.
In conclusion, the invention has the advantages of ingenious structure and simple operation, can simplify the clamping and the dismounting of the workpiece to be processed, can reasonably arrange the use of the cutting fluid, and is very suitable for the batch production of the processing of the inner hole of the tubular workpiece.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention; FIG. 2 isbase:Sub>A schematic view of the structure of FIG. 1 cut along the line A-A; FIG. 3 is an exploded view of the components of the present invention; fig. 4 is a schematic view of the mounting position of the latch; FIG. 5 is an enlarged view of the structure of the first part of FIG. 2; fig. 6 is an enlarged view of the second part of fig. 2.
Detailed Description
To facilitate an understanding of the present invention by those skilled in the art, specific embodiments thereof are described below with reference to the accompanying drawings.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 to 5, the present invention provides a multifunctional fixture for machining a numerically controlled lathe, which includes a mounting disk 1, where the mounting disk 1 is preferably configured to be a cylindrical shape, and the shape of the mounting disk can be configured to be other shapes convenient for installation, such as a rectangle, a polygon, an ellipse, etc., according to actual machining needs, and the present embodiment is configured to be a circular shape, so that the mounting disk can be better matched with a lathe spindle to perform stable rotation during work.
As shown in fig. 2, first blind hole 2 has been seted up to the bottom of mounting disc 1, can be with mounting disc 1 detachable fixed mounting on the main shaft of lathe through first blind hole 2, the connected mode between the main shaft of lathe and mounting disc 1 can adopt threaded connection connected mode to be connected, can also adopt the connected mode of other dismouting of being convenient for certainly, for example cooperation joint, key-type connection, round pin hub connection etc..
As shown in fig. 2 and 3, the top surface of the mounting disc 1 is provided with the second blind hole 3 along the axial direction thereof, the top surface of the mounting disc 1 is provided with three sliding grooves 4 which are symmetrical with respect to the center of the second blind hole 3 along the radial direction of the mounting disc 1, of course, the number of the sliding grooves 4 may be two, or may be more than three, and the preferred three sliding grooves adopted in the present embodiment are not only for enabling the three sliding grooves to stably cooperate with the spindle to rotate in the use process, but also for ensuring that the center of the mounting disc 1 can be automatically aligned when other components slide along the sliding grooves 4 at equal intervals in the use process.
As shown in fig. 2, a counterweight 5 is installed inside the sliding groove 4 and slidably connected to the sliding groove, a sliding rail 6 sliding in cooperation with the side surface of the sliding groove 4 is provided at the bottom of the counterweight 5, the outer side surface of the sliding rail 6 is slidably connected in cooperation with the inner side surface of the sliding groove 4, and thus, in the working process, the counterweight 5 can slide along the radial direction of the mounting plate 1 through the sliding rail 6 and the sliding groove 4.
As shown in fig. 2 and 3, a push disc 7 which is matched with the second blind hole 3 in a sealing and sliding connection is installed inside the second blind hole 3, the push disc 7 is cylindrical, the outer side surface of the push disc 7 is in sealing and sliding connection with the inner side surface of the second blind hole 3, a first through hole 8 is formed in the center of the push disc 7, and a guide rod 9 which is in sealing and sliding connection with the first through hole 8 is arranged inside the first through hole 8, so that under the action of external force, the push disc 7 can slide upwards inside the second blind hole 3 along the guide rod 9.
As shown in fig. 3 and 5, the lower end face of the guide rod 9 is detachably and fixedly connected with the bottom face of the second blind hole 3, the upper end face of the guide rod 9 is provided with a stop disc 10 fixedly connected with the guide rod, and the stop disc can effectively prevent the push disc from sliding upwards and sliding out of the second blind hole 3 in the working process.
As shown in fig. 3 and 5, the lower side surface of the stopping disk 10 is provided with a plurality of uniformly distributed elastic pieces 11, the elastic pieces 11 are slidably connected with the lower side surface of the stopping disk 10, and the lower side surface of the elastic pieces 11 is slidably connected with the upper side surface of the pushing disk 7, so that the elastic pieces 11 can automatically push the pushing disk 7 downwards without the action of external force, and the pushing disk 7 is far away from the stopping disk 10.
As shown in fig. 5, the lower side surface of the sliding rail 6 is provided with a serrated tooth surface, the inclined surface of the serrated tooth surface faces outward, the vertical surface faces the axis direction of the mounting plate 1, the upper side surface of the pushing plate 7 is provided with a rack 12 fixedly connected with the pushing plate 7 corresponding to the lower side surface of the sliding rail 6, the rack 12 is slidably mounted inside the sliding chute 4 in a matching manner corresponding to the sliding rail 6, and the upper surface of the rack 12 is a tooth surface capable of being meshed with the lower side surface of the sliding rail 6, so that under the pushing of an external force, the pushing plate 7 can drive the rack 12 to overcome the elastic force of the elastic piece 11 to enable the rack 12 to be meshed with the lower side surface of the sliding rail 6, thereby preventing the counterweight 5 from sliding towards the center of the mounting plate 1, and because the beveled surface of the serrated tooth surface faces outward, the vertical surface faces the axis direction of the mounting plate 1, when the rack 12 is meshed with the lower side surface of the sliding rail 6, the counterweight 5 can continuously slide away from the axis direction of the mounting plate 1 through the beveled surface.
As shown in fig. 1, 2, 3, it is the ring form to cooperate slidable mounting to be installed after three balancing weight 5 inside three spout 4 are installed, annular draw-in groove 13 has been seted up to balancing weight 5's medial surface, draw-in groove 13's inside is seted up and is run through to the second through-hole 14 of balancing weight 5 lateral surface, the inside of second through-hole 14 is equipped with adjusting lever 15 through the screw thread with it, adjusting lever 15 is close to the one end in the outside of balancing weight 5 and has seted up interior hexagonal spanner jack, can adjust the degree of depth that adjusting lever 15 is in second through-hole 14 inside through twisting adjusting lever 15.
As shown in fig. 6, a pull rod 16 rotatably connected to the adjusting rod 15 is disposed at one end of the adjusting rod 15 close to the inner side of the counterweight 5, a pull rope 17 connected to the pull rod 16 is disposed at one end of the pull rod 16 facing the inner side of the counterweight 5, the middle of the pull rope 17 is hinged to the pull rod 16, a fixture block 18 fixedly connected to the pull rope is disposed at one opposite side of the inner side of the counterweight 5 at two end portions of the pull rope 17, and a position of the outer side of the fixture block 18 close to the end portion of the two end portions is fixedly connected to the pull rope 17, so that in the working process, when the counterweight 5 slides outward, the corresponding fixture block 18 can be driven to fold toward the middle through the pull rope 17, and when the counterweight 5 slides outward to the limit position, the end surfaces of the two ends of the fixture block 18 and the end surface of the fixture block 18 adjacent thereto can be attached to and extruded, thereby limiting the counterweight 5 from continuing to slide outward, and preventing the counterweight 5 from being thrown out of the inside of the chute 4 of the mounting plate 1 by a centrifugal force generated when the counterweight 5 rotates at a high speed in the working process, thereby causing an accident.
As shown in fig. 4, the fixture block 18 is made of a rubber synthetic material having a good strength and a certain elasticity, the inner side surface of the fixture block 18 is provided with a smooth guide surface 19 which is diffused outward, a workpiece to be machined can be inserted into the inner side surface of the fixture block 18 from the guide surface 19 in the using process, and the fixture block 18 itself has elasticity, so that the workpiece to be machined can be inserted into the three fixture blocks 18 without falling.
As shown in fig. 4, the outer side surface of the latch 18 is provided with a guide groove 20, and during the operation, the inner side surface of the guide groove 20 on the outer side of one latch 18 is coupled with the side surface of the pull rope 17 fixedly connected to the adjacent latch 18, so that when the counterweight 5 slides outwards and drives the corresponding latch 18 to close towards the middle, the pull rope 17 between the counterweight 5 and the latch 18 can cling to the other two latches 18 coupled therewith inwards, so that the latches 18 on the inner side of the counterweight 5 can be forced to close towards the inside more uniformly when the three counterweight 5 slides outwards at the same time.
As shown in fig. 2 and 3, an annular groove 21 is formed on the outer side surface of the mounting plate 1, a fixing ring 22 is fitted in the annular groove 21, the fixing ring 22 is connected with the annular groove 21 in a sealing and rotating manner, a pipe joint 23 connected with the fixing ring 22 in a sealing manner is arranged on the outer side of the fixing ring 22, the pipe joint 23 can be fixedly connected with an external cutting fluid conveying pipe in a sealing manner, and the external cutting fluid with certain pressure can be continuously conveyed into the annular groove 21 through the pipe joint 23.
As shown in fig. 2 and 5, a plurality of third through holes 24 communicating with the second blind holes 3 are formed in the annular groove 21, and the cutting fluid can enter the second blind holes 3 through the third through holes 24 in the working process; the outer side surface of the guide rod 9 is provided with a plurality of uniformly distributed fourth through holes 25, in a natural state, the fourth through holes 25 are located on the inner side surface of the first through hole 8 in the center of the push disc 7, the upper end surface of the guide rod 9 is provided with a third blind hole 26 penetrating through the stop disc 10, the inner wall of the third blind hole 26 is communicated with the fourth through hole 25, in a working process, an external pumping system pushes cutting fluid to enter the second blind hole 3 and then continuously pushes the push disc 7 to slide upwards along the guide rod 9 in the second blind hole 3, and after the push disc 7 slides upwards, the inner side surface of the first through hole 8 slides to the upper side of the fourth through hole 25, so that the cutting fluid enters the fourth through hole 25 and is sprayed out of the upper surface of the stop disc 10 through the inside of the third blind hole 26 in the upper end surface of the guide rod 9 to enter the inside of the tubular workpiece.
In summary, when the present invention is used, firstly, the mounting disk 1 is detachably and fixedly mounted on the main shaft of the machine tool through the first blind hole 2, then the pipe joint 23 is fixedly connected with the external cutting fluid delivery pipe in a sealing manner, and then the tubular workpiece to be processed is inserted into the inner side surface of the fixture block 18 from the guide surface 19, so that the end surface of the tubular workpiece is correspondingly attached to the upper end surface of the stop disk 10; the fixture blocks 18 are elastic, so that the workpiece to be machined can not fall off when being inserted into the three fixture blocks 18, the structure realizes the function of simple, convenient and quick operation, simplifies the clamping process of the workpiece to be machined, reduces the technical requirements on operators, and saves the time for clamping the workpiece to be machined.
The pumping system is started again to continuously convey the cutting fluid to the inside of the ring groove 21 through the pipe joint 23, the cutting fluid can enter the inside of the second blind hole 3 through the third through hole 24, the cutting fluid can continuously push the push disc 7 to slide upwards in the second blind hole 3 along the guide rod 9, after the push disc 7 slides upwards, the inner side surface of the first through hole 8 slides to the upper side of the fourth through hole 25, so that the cutting fluid enters the inside of the fourth through hole 25, passes through the inside of the third blind hole 26 on the upper end surface of the guide rod 9, is sprayed out of the upper surface of the stop disc 10, finally enters the inside of the tubular workpiece and flows out from inside to outside; the structure realizes reasonable arrangement of the cutting fluid, so that not only is the discharge of chips of a workpiece to be machined in the turning process facilitated, but also the working space between the clamp and the tool rest is prevented from being occupied by a pipeline device for conveying the cutting fluid.
When the push disc 7 slides upwards, the push disc 7 can drive the rack 12 to overcome the elasticity of the elastic sheet 11 when sliding upwards, so that the rack 12 is meshed with the lower side surface of the sliding rail 6, and the counterweight block 5 is prevented from sliding towards the center of the mounting disc 1; this structure ingenious utilization the kinetic energy of cutting fluid realize the one-way locking of balancing weight 5, thereby avoided balancing weight 5 to slide inside under the unexpected condition and cause the not hard up phenomenon of clamp force appearance inadequately.
Finally, a lathe spindle is started, the lathe spindle can drive the mounting disc 1 to integrally rotate after rotating, and the fixing ring 22 which is arranged inside the annular groove 21 on the outer side surface of the mounting disc 1 in a matched mode cannot rotate along with the mounting disc 1, so that external cutting fluid with certain pressure can be continuously conveyed into the annular groove 21 through the pipe joint 23; when the lathe spindle drives the mounting disc 1 to rotate, the balancing weight 5 can generate centrifugal force along with the rotation of the mounting disc under the action of inertia, so that the balancing weight 5 can slide to the outer side of the mounting disc 1 along the radial direction of the mounting disc 1 through the sliding rail 6 and the sliding groove 4, when the balancing weight 5 slides to the outer side, the corresponding clamping blocks 18 are driven to fold towards the middle through the pull rope 17, the three symmetrically-arranged clamping blocks 18 can automatically clamp a workpiece when folding towards the middle, the workpiece can be automatically centered when being clamped, the axial lead of the workpiece is coincident with the rotation center of the spindle, so that the automatic centering of workpiece clamping is realized through the mutual matching of the three symmetrically-arranged clamping blocks 18, the manual calibration time of a worker during clamping is saved, and the operation difficulty of a technical worker is also reduced.
In the course of the work, when balancing weight 5 slided to extreme position to the outside, the both ends terminal surface of fixture block 18 and the terminal surface of the fixture block 18 adjacent with it can laminate and extrude to restricted balancing weight 5 to continue to slide to the outside, avoided balancing weight 5 to throw away balancing weight 5 the inside of 1 spout 4 of mounting disc when high-speed rotation in the course of the work centrifugal force that produces, thereby arouse the accident.
When treating the processing work piece and carrying out the clamping, if it is not enough to discover the clamp force of fixture block 18 under to the natural state of work piece, perhaps the clamp force is too big, thereby when leading to the unable inboard that inserts fixture block 18 of work piece, can be through twisting adjusting lever 15, thereby adjusting lever 15 is in the inside degree of depth of second through-hole 14, adjusting lever 15 is close to second through-hole 14 inner more, fixture block 18 will be just bigger from the distance of counter weight 5 relative to it under the natural state, thereby make the space in the middle of the fixture block 18 of mutually supporting also increase, and then make the clamp force reduce, and the same is so, adjusting lever 15 is close to second through-hole 14 outer end more, the clamp force can increase.
After once processing is finished, only the rotation of the main shaft needs to be stopped and the pumping of the cutting fluid needs to be closed, when the cutting fluid is closed, the external pumping system can not push the cutting fluid into the second blind hole 3 any more, the cutting fluid can not continuously push the push disc 7, the elastic sheet 11 can automatically push the push disc 7 downwards, the push disc 7 is far away from the stop disc 10, the rack 12 is separated from the lower side surface of the sliding rail 6, the locking of the counterweight block 5 to the center sliding of the mounting disc 1 is released, and then the workpiece can be pulled out with proper force.
In a word, the invention has the advantages of ingenious structure and simple operation, can simplify the clamping and the dismounting of the workpiece to be processed, can reasonably arrange the use of the cutting fluid, and is very suitable for the batch production of the processing of the inner holes of the tubular workpieces.
The above-described embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (5)
1. The utility model provides a multi-functional anchor clamps for numerical control lathe processing which characterized in that: the mounting device comprises a mounting disc, wherein a second blind hole is formed in the top surface of the mounting disc, a plurality of sliding grooves which are symmetrical about the center of the second blind hole are formed in the top surface of the mounting disc along the radial direction of the mounting disc, and a clamping assembly is arranged inside each sliding groove; a push disc in sealing sliding connection with the second blind hole is arranged in the second blind hole, and a locking assembly is arranged between the push disc and the clamping assembly; an annular groove is formed in the outer side surface of the mounting disc, a fixing ring in sealing and rotating connection with the annular groove is arranged inside the annular groove, the outer side of the fixing ring is fixedly communicated with an external cutting fluid conveying pipe in a sealing mode, and a plurality of third through holes communicated with the second blind holes are formed in the annular groove; after the cutting fluid with certain pressure enters the second blind hole through the pipe joint, the push disc is pushed to enable the locking assembly to lock the clamping assembly, and therefore the workpiece clamped by the clamping assembly is prevented from loosening;
the clamping assembly comprises a sliding chute, a balancing weight which is connected with the sliding chute in a sliding manner is arranged in the sliding chute, a sliding rail which is matched with the side surface of the sliding chute to slide is arranged at the bottom of the balancing weight, and the outer side surface of the sliding rail is matched and connected with the inner side surface of the sliding chute in a sliding manner; the inner side surface of the balancing weight is provided with a circular clamping groove, an adjusting component is arranged inside the clamping groove, one side of the adjusting component, which is far away from the inner side surface of the balancing weight, is provided with a pull rope fixedly connected with the inner side surface of the balancing weight, the opposite surfaces of the two end parts of the pull rope, which are positioned at the inner side of the balancing weight, are provided with clamping blocks fixedly connected with the pull rope, the positions, which are close to the end parts of the two end parts, of the outer side surface of each clamping block are fixedly connected with the pull rope, and the distance between each clamping block and the inner side surface of the balancing weight can be adjusted through the adjusting component;
the locking assembly comprises a sliding rail, the lower side surface of the sliding rail is provided with a serrated tooth surface, the inclined surface of the serrated tooth surface faces outwards, the vertical surface faces the axis direction of the mounting disc, the upper side surface of the pushing disc is provided with a rack fixedly connected with the pushing disc corresponding to the lower side surface of the sliding rail, the rack is matched with the sliding rail and is slidably mounted in the sliding chute, and the upper surface of the rack is a tooth surface capable of being meshed with the lower side surface of the sliding rail;
the center of the push disc is provided with a first through hole, a guide rod in sealing sliding connection with the first through hole is arranged inside the first through hole, the lower end face of the guide rod is in detachable fixed connection with the bottom face of the second blind hole, the upper end face of the guide rod is provided with a stop disc in fixed connection with the guide rod, the lower side face of the stop disc is provided with a plurality of uniformly distributed elastic sheets, the elastic sheets are in sliding connection with the lower side face of the stop disc, and the lower side face of the elastic sheets is in sliding connection with the upper side face of the push disc.
2. The multifunctional clamp for the numerical control lathe machining according to claim 1, characterized in that: the adjusting component comprises a clamping groove, a second through hole penetrating to the outer side surface of the balancing weight is formed in the clamping groove, an adjusting rod connected with the second through hole through threads is arranged in the second through hole, and an inner hexagonal wrench jack is formed in one end, close to the outer side of the balancing weight, of the adjusting rod; the end of the adjusting rod close to the inner side of the balancing weight is provided with a pull rod which is rotatably connected with the adjusting rod, and the end of the pull rod facing the inner side of the balancing weight is hinged with the middle part of the pull rope.
3. The multifunctional clamp for the numerical control lathe machining according to claim 2, is characterized in that: the fixture block is made of rubber synthetic material with good strength and certain elasticity, and the inner side surface of the fixture block is provided with a smooth guide surface which is diffused outwards; the outer side surface of each clamping block is provided with a guide groove, and in the working process, the inner side surface of the guide groove on the outer side of one clamping block is coupled with the side surface of the pull rope fixedly connected to the clamping block adjacent to the clamping block.
4. The multifunctional clamp for the numerical control lathe machining according to claim 1, is characterized in that: the outer side surface of the guide rod is provided with a plurality of uniformly distributed fourth through holes, the fourth through holes are positioned on the inner side surface of the first through hole in the center of the push disc in a natural state, the upper end surface of the guide rod is provided with a third blind hole penetrating through the stop disc, and the inner wall of the third blind hole is communicated with the fourth through hole.
5. The multifunctional clamp for numerically controlled lathe machining according to claim 4, characterized in that: the mounting disc set up to cylindrical, first blind hole has been seted up to the bottom of mounting disc.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210346176.7A CN114700788B (en) | 2022-04-02 | 2022-04-02 | Multifunctional clamp for machining numerical control lathe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210346176.7A CN114700788B (en) | 2022-04-02 | 2022-04-02 | Multifunctional clamp for machining numerical control lathe |
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| CN114700788A CN114700788A (en) | 2022-07-05 |
| CN114700788B true CN114700788B (en) | 2023-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210346176.7A Active CN114700788B (en) | 2022-04-02 | 2022-04-02 | Multifunctional clamp for machining numerical control lathe |
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| CN212169676U (en) * | 2020-05-06 | 2020-12-18 | 大连大洋盛兴自动化设备有限公司 | Positioning and clamping device for machining |
| CN213196582U (en) * | 2020-09-16 | 2021-05-14 | 安徽钰桥精密自动化机械有限公司 | Clamp suitable for processing different types of engine connecting rods |
| CN214517699U (en) * | 2021-01-05 | 2021-10-29 | 福建正前标识工程有限公司 | Drilling equipment is used in processing of sign tablet board |
| CN113941720A (en) * | 2021-11-23 | 2022-01-18 | 朱娟 | Drilling equipment for petroleum valve accessories |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3560009A (en) * | 1967-10-02 | 1971-02-02 | Cri Dan | Machine-tool chuck |
| CN207372718U (en) * | 2017-03-29 | 2018-05-18 | 东莞阿诺精密切削技术有限公司 | A kind of drill bit processing jig |
| CN108673174A (en) * | 2018-07-05 | 2018-10-19 | 金华市高级技工学校 | The universal processing auxiliary universal fixturing of Milling Motion in Three-axes NC and processing method |
| CN111483856A (en) * | 2020-04-22 | 2020-08-04 | 绍兴权电科技有限公司 | Anti-fake label printing robot capable of realizing particle dispersion through centrifugal stretching |
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| CN214517699U (en) * | 2021-01-05 | 2021-10-29 | 福建正前标识工程有限公司 | Drilling equipment is used in processing of sign tablet board |
| CN113941720A (en) * | 2021-11-23 | 2022-01-18 | 朱娟 | Drilling equipment for petroleum valve accessories |
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|---|---|
| CN114700788A (en) | 2022-07-05 |
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