CN118023978B - Workpiece fixing device based on numerical control lathe - Google Patents
Workpiece fixing device based on numerical control lathe Download PDFInfo
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- CN118023978B CN118023978B CN202410433275.8A CN202410433275A CN118023978B CN 118023978 B CN118023978 B CN 118023978B CN 202410433275 A CN202410433275 A CN 202410433275A CN 118023978 B CN118023978 B CN 118023978B
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Abstract
The application relates to the technical field of numerically controlled lathes, in particular to a workpiece fixing device based on a numerically controlled lathe, which comprises a bearing mechanism, a rotating mechanism and a fixing assembly, wherein the rotating mechanism is arranged on the numerically controlled lathe, the bearing mechanism comprises a bearing box and a mounting frame, the bearing box is arranged on the rotating mechanism, the mounting frame is fixedly arranged at the top of the bearing box, the fixing assembly comprises a clamping mechanism, a multi-point laminating mechanism, a boss compacting mechanism, a positioning mechanism and a driving mechanism, the clamping mechanism is arranged on the mounting frame, the multi-point laminating mechanism is arranged on the clamping mechanism in a reversible manner, the boss compacting mechanism and the positioning mechanism are respectively arranged on the bearing box, and the driving mechanism is respectively connected with the clamping mechanism and the boss compacting mechanism. Therefore, the workpiece processing device can adapt to and fix workpieces with various shapes and sizes, effectively expands the application range of the workpiece shape, improves the flexibility of workpiece processing, improves the processing efficiency and shortens the production period.
Description
Technical Field
The application relates to the technical field of numerically controlled lathes, in particular to a workpiece fixing device based on a numerically controlled lathe.
Background
The numerical control lathe is a high-precision and high-efficiency automatic machine tool, can be used for machining various shaft parts, sleeve parts, threads and other parts, utilizes digital information to control equipment of the machine tool and a machining process, realizes the machining of workpieces in the form of preprogrammed program codes or other symbol instructions, and has unique advantages in complex and precise part machining.
In the related art, the positioning and fixing of the workpiece are usually realized by using special clamps, and the clamps are designed according to the shape, the size and the machining requirement of the workpiece, so that the stability and the machining precision of the workpiece in the machining process can be ensured, including a three-jaw self-centering chuck, a four-jaw independent chuck, a clamping plate, a clamping head, a custom clamp and the like.
However, while existing clamp systems meet the machining requirements in many ways, there are some disadvantages, the most significant of which is the small range of clamp adaptations, and the need to replace different clamps for different shaped, sized workpieces, such as cylindrical workpieces, tubular workpieces, rectangular workpieces, and workpieces with bosses at the ends, has limited the flexibility and efficiency of machining to some extent.
Disclosure of Invention
The present application aims to solve at least one of the technical problems in the related art to some extent.
Therefore, an object of the application is to provide a workpiece fixing device based on a numerically controlled lathe, which can adapt to and fix workpieces with various shapes and sizes, effectively expands the application range of the workpiece shape, improves the flexibility of workpiece processing, improves the processing efficiency and shortens the production period.
In order to achieve the above object, an embodiment of a first aspect of the present application provides a workpiece fixing device based on a numerically controlled lathe, including a bearing mechanism, a rotation mechanism and a fixing assembly, wherein the rotation mechanism is disposed on the numerically controlled lathe; the bearing mechanism comprises a bearing box and a mounting frame, wherein the bearing box is arranged on the slewing mechanism, the mounting frame is fixedly arranged at the top of the bearing box, and the slewing mechanism is used for driving the bearing box to rotate; the fixing assembly comprises a clamping mechanism, a multi-point attaching mechanism, a boss compacting mechanism, a positioning mechanism and a driving mechanism, wherein the clamping mechanism is arranged on the mounting frame, the multi-point attaching mechanism is arranged on the clamping mechanism in a turnover manner, the clamping mechanism is matched with the multi-point attaching mechanism and used for clamping and fixing a workpiece in a preset shape, and the preset shape comprises a cylindrical rod, a rectangular rod and a tubular rod; the boss compacting mechanism is arranged on the bearing box and is used for compacting and fixing a workpiece with a boss shape at the end part; the positioning mechanism is arranged on the bearing box and is used for coaxially positioning the workpiece and the rotary mechanism; the driving mechanism is respectively connected with the clamping mechanism and the boss compacting mechanism and is used for respectively driving the clamping mechanism and the boss compacting mechanism to fix the workpiece.
The workpiece fixing device based on the numerical control lathe can adapt to and fix workpieces with various shapes and sizes, effectively expands the application range of the workpiece shape, improves the flexibility of workpiece processing, improves the processing efficiency and shortens the production period.
In addition, the workpiece fixing device based on the numerical control lathe provided by the application can also have the following additional technical characteristics:
In one embodiment of the application, the rotary mechanism comprises a rotary motor and an annular sliding rail, wherein the rotary motor is fixedly arranged on a numerical control lathe, and an output shaft of the rotary motor is fixedly connected with the bearing box; the annular sliding rail is fixedly arranged on the numerical control lathe, the annular sliding rail is sleeved on the periphery of the rotary motor, and a plurality of sliding blocks on the annular sliding rail are fixedly connected with the bearing box respectively.
In one embodiment of the application, the clamping mechanism comprises two clamping rods and two movable frames, wherein the two clamping rods are respectively and slidably arranged on the mounting frame, and the mounting frame is provided with movable grooves for the two clamping rods to move oppositely; the two movable frames are fixedly connected with the two clamping rods respectively, and the two movable frames are slidably connected with the bearing box respectively.
In one embodiment of the application, the multi-point attaching mechanism comprises two fixed rods, two T-shaped inserting rods and four abutting blocks, wherein the two fixed rods are fixedly connected with the two movable frames respectively, and slots matched with the T-shaped inserting rods are respectively formed in the tops of the two fixed rods; the two T-shaped inserted bars are detachably connected with the two fixed bars through the slots respectively; the four abutting blocks are respectively and pivotally arranged on the two T-shaped inserting rods, and two abutting blocks are respectively arranged on each T-shaped inserting rod.
In one embodiment of the application, the boss compacting mechanism comprises a plurality of rocker arms, a plurality of supporting frames and a plurality of compacting blocks, wherein the supporting frames are respectively and fixedly arranged at the top of the bearing box, and the supporting frames are arranged in a circular array; the rocker arms are respectively and pivotally arranged on the supporting frame, and the pressing blocks are respectively and pivotally arranged on the rocker arms.
In one embodiment of the application, the positioning mechanism comprises a plurality of support plates, a plurality of first screws, a plurality of rotary handles and a plurality of positioning blocks, wherein the support plates are respectively fixedly connected to the top of the bearing box and are uniformly distributed around the output shaft of the rotary motor; the first screw rods are respectively connected with the supporting plates in a threaded mode, the rotating handles and the positioning blocks are respectively sleeved on the first screw rods, and the positioning blocks are respectively arranged at one ends, close to each other, of the first screw rods.
In one embodiment of the application, the driving mechanism comprises a hydraulic cylinder, a movable rod, two sliding blocks, two first pivoting rods and two second pivoting rods, wherein the movable rod is slidably arranged on the mounting frame, and the two sliding blocks are respectively and slidably connected with the movable rod; one ends of the two first pivoting rods are respectively and pivotally connected with the mounting frame, the two first pivoting rods are respectively arranged on two sides of the movable rod, and the other ends of the two first pivoting rods are respectively and pivotally connected with the two sliding blocks; two ends of the two second pivoting rods are respectively and pivotally connected with the two sliding blocks and the two clamping rods, and the first pivoting rods and the second pivoting rods on the same sliding block are arranged in a V shape; the hydraulic cylinder is fixedly arranged on the mounting frame, and the movable end of the hydraulic cylinder is connected with the movable rod.
In one embodiment of the application, the driving mechanism further comprises a second screw rod, a lifting plate, a limiting rod, a plurality of telescopic rods, gears, a straight rack, a rotating rod and bolts, wherein the second screw rod is rotatably arranged in the bearing box, and the lifting plate is in threaded connection with the second screw rod; the limiting rod is fixedly connected in the bearing box and is slidably connected with the lifting plate; one ends of the telescopic rods are respectively and pivotally connected with the lifting plate, and the other ends of the telescopic rods are respectively and pivotally connected with the rocker arms; the gear is sleeved on the second screw rod; the straight rack is slidably arranged in the bearing box and is meshed with the gear; the rotating rod is rotatably sleeved on the movable end of the hydraulic cylinder, and the rotating rod is perpendicular to the movable end of the hydraulic cylinder; the bolt vertically penetrates through the rotating rod and is connected with the rotating rod through threads, and a thread groove matched with the bolt is formed in one end of the straight rack and the movable rod respectively.
Additional aspects and advantages of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic view of a workpiece fixture based on a numerically controlled lathe according to one embodiment of the application;
FIG. 2 is a schematic structural view of a fixture assembly of a numerically controlled lathe based workpiece fixture according to one embodiment of the present application;
FIG. 3 is an enlarged view of FIG. 2 at A in accordance with the present application;
fig. 4 is a schematic structural view of a workpiece fixture based on a numerically controlled lathe according to another embodiment of the present application.
As shown in the figure: 1. a carrying mechanism; 101. a carrying case; 102. a mounting frame; 2. a slewing mechanism; 201. a rotary motor; 202. an annular slide rail; 3. a fixing assembly; 31. a clamping mechanism; 311. a clamping rod; 312. a movable frame; 32. a multi-point attaching mechanism; 321. a fixed rod; 322. a T-shaped inserted link; 323. an abutment block; 33. a boss compacting mechanism; 331. a support frame; 332. a rocker arm; 333. compacting blocks; 34. a positioning mechanism; 341. a support plate; 342. a first screw; 343. a rotating handle; 344. a positioning block; 35. a driving mechanism; 351. a hydraulic cylinder; 352. a movable rod; 353. a sliding block; 354. a first pivot lever; 355. a second pivot lever; 356. a second screw; 357. a lifting plate; 358. a limit rod; 359. a telescopic rod; 3510. a gear; 3511. a straight rack; 3512. a rotating lever; 3513. and (5) a bolt.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.
The workpiece fixing device based on the numerical control lathe according to the embodiment of the application is described below with reference to the accompanying drawings.
The workpiece fixing device based on the numerical control lathe can be applied to the numerical control lathe and used for positioning and fixing the workpiece to be processed, can adapt to and fix workpieces with various shapes and sizes, effectively expands the application range of the workpiece shape, improves the flexibility of workpiece processing, improves the processing efficiency and shortens the production period.
As shown in fig. 1 to 4, a workpiece fixing device based on a numerically controlled lathe according to an embodiment of the present application may include a carrying mechanism 1, a swing mechanism 2, and a fixing assembly 3.
Wherein the slewing mechanism 2 is arranged on the numerical control lathe.
The carrying mechanism 1 may comprise a carrying case 101 and a mounting frame 102.
Wherein, the carrier box 101 is arranged on the slewing mechanism 2, and the mounting frame 102 is fixedly arranged at the top of the carrier box 101, wherein, the slewing mechanism 2 is used for driving the carrier box 101 to rotate.
The securing assembly 3 may include a clamping mechanism 31, a multi-point fitting mechanism 32, a boss pinching mechanism 33, a positioning mechanism 34, and a driving mechanism 35.
Wherein, fixture 31 sets up on mounting bracket 102, and multiple spot laminating mechanism 32 can overturn and set up on fixture 31, wherein, fixture 31 cooperatees with multiple spot laminating mechanism 32 and is used for carrying out the centre gripping fixed to the work piece of predetermineeing the shape, wherein, predetermineeing the shape and can include cylinder pole, rectangular bar and tubular pole etc., boss sticiss mechanism 33 sets up on carrying case 101, boss sticiss mechanism 33 is used for sticiss fixed to the end has the work piece of boss shape, positioning mechanism 34 sets up on carrying case 101, positioning mechanism 34 is used for carrying out coaxial location with slewing mechanism 2 with the work piece, actuating mechanism 35 links to each other with fixture 31 and boss sticiss mechanism 33 respectively, actuating mechanism 35 is used for driving fixture 31 and boss sticiss mechanism 33 respectively and fixes the work piece.
Specifically, when the workpiece is processed by the numerically controlled lathe, related personnel firstly coaxially position the workpiece and the rotary mechanism 2 through the positioning mechanism 34 so that the rotary mechanism 2 can drive the workpiece to rotate, then, related personnel start the driving mechanism 35 to drive the clamping mechanism 31 or the boss compacting mechanism 33 to fix the workpiece according to the shape of the workpiece, wherein the clamping mechanism 31 and the multi-point laminating mechanism 32 are mutually matched to clamp and fix the workpieces in polygonal shapes such as a cylindrical rod, a tubular rod and a rectangle, the boss compacting mechanism 33 can compact and fix the workpiece with the boss shape at the end part, so that the application range of the workpiece shape is improved, in addition, when the workpieces in different shapes are fixed, related personnel only need to drive the clamping mechanism 31 or the boss compacting mechanism 33 to adjust, the operation is simple, and the flexibility and the efficiency of workpiece processing are effectively improved.
In addition, after the workpiece is fixed, related personnel drive the bearing box 101 to rotate by starting the slewing mechanism 2 so as to drive the workpiece to rotate, and lathe machining treatment of the workpiece can be realized by programming a cutter of the numerical control lathe.
In one embodiment of the present application, as shown in fig. 4, the swing mechanism 2 may include a swing motor 201 and an endless slide rail 202.
Wherein, rotation motor 201 fixed mounting is on the numerical control lathe, and rotation motor 201's output shaft links to each other with bearing box 101 is fixed, and annular slide rail 202 fixed mounting is on the numerical control lathe, and annular slide rail 202 cover is established in rotation motor 201's periphery, and a plurality of sliders on the annular slide rail 202 are fixed with bearing box 101 respectively and link to each other.
It should be noted that, the carrying case 101 described in this embodiment may be configured in a cylindrical shape, and the output shaft of the rotary motor 201 is fixedly connected to the center of the bottom of the carrying case 101, so that the rotary motor 201 drives the carrying case 101 to rotate.
Specifically, related personnel drive the carrying case 101 to rotate by starting the rotary motor 201 to drive the workpiece to rotate and match with a cutter of the numerically controlled lathe to finish processing of the workpiece, the annular sliding rail 202 is used for providing auxiliary support for the carrying case 101, and a plurality of sliding blocks are arranged on the annular sliding rail 202 to improve the stability of the carrying case 101 during rotation.
In one embodiment of the present application, as shown in fig. 1-3, the clamping mechanism 31 may include two clamping bars 311 and two movable shelves 312.
Wherein, two clamping rods 311 are slidably disposed on the mounting frame 102, and the mounting frame 102 is provided with a movable slot for the two clamping rods 311 to move in opposite directions, two movable frames 312 are fixedly connected with the two clamping rods 311, and the two movable frames 312 are slidably connected with the carrying case 101.
The multi-point attachment mechanism 32 may include two fixed bars 321, two T-shaped bars 322, and four abutment blocks 323.
Wherein, two dead levers 321 link to each other with two movable frames 312 are fixed respectively, and the slot with T type inserted bar 322 looks adaptation has been seted up respectively at the top of two dead levers 321, and two T type inserted bars 322 link to each other with two dead levers 321 can be dismantled through the slot respectively, and four butt pieces 323 pivotably set up respectively on two T type inserted bars 322, and are provided with two butt pieces 323 on each T type inserted bar 322 respectively.
It should be noted that, in the embodiment, a plurality of limiting blocks (not specifically identified in the drawing) are further disposed on the T-shaped inserting rod 322, and the plurality of limiting blocks are respectively in a collision connection with the four abutting blocks 323, so as to limit the pivoting angle of the abutting blocks 323 to a certain extent.
It should also be noted that the cross section of the slot described in this example may be configured as a rectangle to avoid rotation of the T-shaped rod 322 within the slot.
Specifically, the related personnel do the motion that is close to each other through driving two clamping bars 311 to drive two movable frames 312 and four butt piece 323 and do the motion that is close to each other, and then carry out four-point location centre gripping to rectangular workpiece respectively through four butt piece 323 and fix, stability is higher, and four butt piece 323 are rotatable with two T type inserted bars 322 respectively and are connected, make it can also fix cylindrical and polygonal work piece, in addition, two T type inserted bars 322 can dismantle with two dead levers 321 respectively and link to each other, insert back after turning over through taking down T type inserted bar 322, then can also fix the inner wall of tubular workpiece through controlling the motion of two T type inserted bars 322 to the direction that is kept away from each other, so that the cutter of numerical control lathe can carry out comprehensive processing to the surface of tubular workpiece, further improvement application work piece's scope.
In one embodiment of the present application, as shown in fig. 1-3, the boss pinching mechanism 33 may include a plurality of rocker arms 332, a plurality of support brackets 331, and a plurality of pinching blocks 333.
The plurality of supporting frames 331 are respectively and fixedly mounted at the top of the carrying case 101, the plurality of supporting frames 331 are arranged in a circular array, the plurality of rocker arms 332 are respectively and pivotably arranged on the supporting frames 331, and the plurality of tightening blocks 333 are respectively and pivotably arranged on the plurality of rocker arms 332.
Specifically, the related personnel pivot through driving a plurality of rocking arms 332 to drive a plurality of tight briquetting 333 and sticis downwards respectively, thereby can fix a position the work piece that the tip has the boss fixedly, and a plurality of rocking arms 332 respectively with two movable frames 312 dislocation distribution, so that the motion trail between boss sticiss mechanism 33 and the fixture 31 does not influence each other, overall arrangement and structural design are reasonable, when fixing the work piece of different shapes, need not to change anchor clamps, only need change driving method can, easy operation.
In one embodiment of the present application, as shown in fig. 3, the positioning mechanism 34 may include a plurality of support plates 341, a plurality of first screws 342, a plurality of rotating handles 343, and a plurality of positioning blocks 344.
Wherein, a plurality of backup pads 341 are respectively fixedly connected at the top of carrying case 101, and a plurality of backup pads 341 are respectively around the output shaft evenly distributed of rotary motor 201, a plurality of first screw rods 342 are respectively connected with a plurality of backup pads 341 screw thread, a plurality of rotating handles 343 and a plurality of locating pieces 344 are respectively cup jointed on a plurality of first screw rods 342, and a plurality of locating pieces 344 are respectively arranged on one end that a plurality of first screw rods 342 are close to each other.
Note that, in the first screws 342 described in this embodiment, graduation lines (not shown) are further provided so that the positioning distance to the workpiece can be determined by the graduation lines.
Specifically, before the workpiece is lathed, related personnel first adjust the distance between the plurality of positioning blocks 344 according to the shape and the size of the workpiece to be lathed, the first screw rod 342 is rotated by the rotating handle 343 to adjust the positioning blocks 344 to move to be in contact with one side of the workpiece to be lathed, so that the shape of the workpiece to be lathed can be positioned by the plurality of positioning blocks 344, the workpiece can be positioned coaxially with the output shaft of the rotary motor 201 by observing the scale marks, and then the workpiece is directly placed among the plurality of positioning blocks 344 when the workpiece is positioned.
As a possible scenario, the positioning mechanism 34 described in this embodiment may also be replaced with an automated centering device of the prior art, which is commercially available and will not be described in detail herein.
In one embodiment of the present application, as shown in fig. 1-4, the drive mechanism 35 may include a hydraulic cylinder 351, a movable rod 352, two sliding blocks 353, two first pivot rods 354, and two second pivot rods 355.
Wherein, movable rod 352 slidably sets up on mounting bracket 102, and two sliding blocks 353 link to each other with movable rod 352 slidable respectively, the one end of two first pivoted levers 354 links to each other with mounting bracket 102 pivotable respectively, two first pivoted levers 354 set up respectively in the both sides of movable rod 352, and the other end of two first pivoted levers 354 links to each other with two sliding blocks 353 pivotable respectively, the both ends of two second pivoted levers 355 link to each other with two sliding blocks 353 and two clamping bars 311 pivotable respectively, and be the V font setting between first pivoted levers 354 and the second pivoted levers 355 on the same sliding block 353, pneumatic cylinder 351 fixed mounting is on mounting bracket 102, and the expansion end of pneumatic cylinder 351 links to each other with movable rod 352.
Specifically, when the two clamping rods 311 and the two movable frames 312 are driven to move close to each other, related personnel first push the movable rod 352 to move away from the hydraulic cylinder 351 by starting the hydraulic cylinder 351, and the movable rod 352 can drive the two clamping rods 311 to move close to each other through the two second pivoting rods 355 under the action of the two first pivoting rods 354, the two second pivoting rods 355 and the connecting rods of the two sliding blocks 353 in the moving process, so that the clamping effect on a workpiece is realized, and when the hydraulic cylinder 351 drives the movable rod 352 to reset, the two clamping rods 311 can be driven to move away from each other, so that the fixation on the outer surface of the workpiece is relieved, or the fixation on the inner wall of the tubular workpiece is realized.
In one embodiment of the present application, as shown in fig. 4, the driving mechanism 35 described in the above embodiment may further include a second screw 356, a lifting plate 357, a limit bar 358, a plurality of telescopic bars 359, a gear 3510, a straight rack 3511, a rotation bar 3512 and a bolt 3513.
The second screw 356 is rotatably disposed in the carrying case 101, the lifting plate 357 is in threaded connection with the second screw 356, the limiting rod 358 is fixedly connected in the carrying case 101, the limiting rod 358 is slidably connected with the lifting plate 357, one ends of the plurality of telescopic rods 359 are respectively and pivotally connected with the lifting plate 357, the other ends of the plurality of telescopic rods 359 are respectively and pivotally connected with the plurality of rocker arms 332, the gear 3510 is sleeved on the second screw 356, the straight rack 3511 is slidably disposed in the carrying case 101, the straight rack 3511 is engaged with the gear 3510, the rotating rod 3512 is rotatably sleeved on the movable end of the hydraulic cylinder 351, the rotating rod 3512 is vertically arranged at the movable end of the hydraulic cylinder 351, the bolt 3513 vertically penetrates through the rotating rod 3512 and is in threaded connection with the rotating rod 3512, and threaded grooves matched with the bolts 3513 are respectively formed in one ends of the straight rack 3511 and the movable rod 352.
It should be noted that, in the embodiment described, the carrying case 101 is provided with a through groove for the rotation rod 3512 to move, and a box door (not shown) is provided on the carrying case 101, so as to fix the bolt 3513 and the thread groove on the straight rack 3511.
Specifically, when fixing workpieces of different shapes, related personnel respectively connect the rotating rod 3512 with the movable rod 352 or the straight rack 3511 through the bolts 3513, when the rotating rod 3512 is connected with the straight rack 3511, the related personnel drive the straight rack 3511 to do linear motion through starting the hydraulic cylinder 351 so as to drive the gear 3510 meshed with the same to rotate, and further drive the second screw 356 to rotate, so that the lifting plate 357 is driven to do lifting motion under the limiting effect of the limiting rod 358 on the lifting plate 357, the plurality of rocker arms 332 are respectively driven to press down through the plurality of telescopic rods 359 while the lifting plate 357 is in descending motion, so that the bosses of the workpieces are tightly pressed and fixed by the plurality of tightening blocks 333, and further, the fixed mode of the workpieces of different shapes is switched, and the numerical control lathe is reasonable and compact in structure layout and design, and the flexibility and the efficiency of workpiece processing are effectively improved.
In summary, the workpiece fixing device based on the numerical control lathe provided by the embodiment of the application can adapt to and fix workpieces with various shapes and sizes, effectively expands the application range of the workpiece shape, improves the flexibility of workpiece processing, improves the processing efficiency and shortens the production period.
In the description of this specification, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (4)
1. A workpiece fixing device based on a numerical control lathe is characterized by comprising a bearing mechanism, a slewing mechanism and a fixing component, wherein,
The slewing mechanism is arranged on the numerical control lathe;
the bearing mechanism comprises a bearing box and a mounting frame, wherein,
The bearing box is arranged on the slewing mechanism, and the mounting frame is fixedly arranged at the top of the bearing box, wherein the slewing mechanism is used for driving the bearing box to rotate;
the fixing component comprises a clamping mechanism, a multi-point attaching mechanism, a boss compacting mechanism, a positioning mechanism and a driving mechanism, wherein,
The clamping mechanism is arranged on the mounting frame, the multi-point attaching mechanism is arranged on the clamping mechanism in a turnover manner, the clamping mechanism is matched with the multi-point attaching mechanism and used for clamping and fixing a workpiece in a preset shape, and the preset shape comprises a cylindrical rod, a rectangular rod and a tubular rod;
the boss compacting mechanism is arranged on the bearing box and is used for compacting and fixing a workpiece with a boss shape at the end part;
The positioning mechanism is arranged on the bearing box and is used for coaxially positioning the workpiece and the rotary mechanism;
The driving mechanism is respectively connected with the clamping mechanism and the boss compacting mechanism and is used for respectively driving the clamping mechanism and the boss compacting mechanism to fix the workpiece;
the clamping mechanism comprises two clamping rods and two movable frames, wherein,
The two clamping rods are respectively and slidably arranged on the mounting frame, and the mounting frame is provided with a movable groove for the two clamping rods to move oppositely;
the two movable frames are fixedly connected with the two clamping rods respectively, and the two movable frames are slidably connected with the bearing box respectively;
The boss compacting mechanism comprises a plurality of rocker arms, a plurality of supporting frames and a plurality of compacting blocks, wherein,
The support frames are respectively and fixedly arranged at the top of the bearing box, and are arranged in a circular array;
The rocker arms are respectively and pivotally arranged on the supporting frame, and the pressing blocks are respectively and pivotally arranged on the rocker arms;
The driving mechanism comprises a hydraulic cylinder, a movable rod, two sliding blocks, two first pivoting rods and two second pivoting rods, wherein,
The movable rod is slidably arranged on the mounting frame, and the two sliding blocks are respectively and slidably connected with the movable rod;
one ends of the two first pivoting rods are respectively and pivotally connected with the mounting frame, the two first pivoting rods are respectively arranged on two sides of the movable rod, and the other ends of the two first pivoting rods are respectively and pivotally connected with the two sliding blocks;
Two ends of the two second pivoting rods are respectively and pivotally connected with the two sliding blocks and the two clamping rods, and the first pivoting rods and the second pivoting rods on the same sliding block are arranged in a V shape;
the hydraulic cylinder is fixedly arranged on the mounting frame, and the movable end of the hydraulic cylinder is connected with the movable rod;
The driving mechanism also comprises a second screw rod, a lifting plate, a limiting rod, a plurality of telescopic rods, gears, a straight rack, a rotating rod and bolts, wherein,
The second screw rod is rotatably arranged in the bearing box, and the lifting plate is in threaded connection with the second screw rod;
the limiting rod is fixedly connected in the bearing box and is slidably connected with the lifting plate;
one ends of the telescopic rods are respectively and pivotally connected with the lifting plate, and the other ends of the telescopic rods are respectively and pivotally connected with the rocker arms;
The gear is sleeved on the second screw rod;
the straight rack is slidably arranged in the bearing box and is meshed with the gear;
the rotating rod is rotatably sleeved on the movable end of the hydraulic cylinder, and the rotating rod is perpendicular to the movable end of the hydraulic cylinder;
The bolt vertically penetrates through the rotating rod and is connected with the rotating rod through threads, and a thread groove matched with the bolt is formed in one end of the straight rack and the movable rod respectively.
2. The workpiece fixture for a numerically controlled lathe according to claim 1, wherein the turning mechanism comprises a turning motor and an annular slide rail, wherein,
The rotary motor is fixedly arranged on the numerical control lathe, and an output shaft of the rotary motor is fixedly connected with the bearing box;
the annular sliding rail is fixedly arranged on the numerical control lathe, the annular sliding rail is sleeved on the periphery of the rotary motor, and a plurality of sliding blocks on the annular sliding rail are fixedly connected with the bearing box respectively.
3. The numerically controlled lathe-based workpiece fixture of claim 1, wherein the multi-point attachment mechanism comprises two fixing bars, two T-shaped insert bars, and four abutment blocks, wherein,
The two fixing rods are fixedly connected with the two movable frames respectively, and slots matched with the T-shaped inserted bars are respectively formed in the tops of the two fixing rods;
the two T-shaped inserted bars are detachably connected with the two fixed bars through the slots respectively;
the four abutting blocks are respectively and pivotally arranged on the two T-shaped inserting rods, and two abutting blocks are respectively arranged on each T-shaped inserting rod.
4. The numerically controlled lathe-based workpiece fixture of claim 2, wherein the positioning mechanism comprises a plurality of support plates, a plurality of first screws, a plurality of handles, and a plurality of positioning blocks, wherein,
The support plates are respectively and fixedly connected to the top of the bearing box, and are uniformly distributed around the output shaft of the rotary motor;
The first screw rods are respectively connected with the supporting plates in a threaded mode, the rotating handles and the positioning blocks are respectively sleeved on the first screw rods, and the positioning blocks are respectively arranged at one ends, close to each other, of the first screw rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410433275.8A CN118023978B (en) | 2024-04-11 | 2024-04-11 | Workpiece fixing device based on numerical control lathe |
Applications Claiming Priority (1)
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