High-precision positioning rotary table with no gap worm drive

Abstract

The present application belongs to the technical field of correcting parts in holes, and discloses a high-precision positioning rotary workbench with no gap worm drive, which comprises a machine tool main body, a machine tool built-in base is arranged in the middle of the machine tool main body, and observation windows are movably arranged on the two sides of the machine tool main body, and the high-precision positioning rotary workbench further comprises a workbench base arranged on the top of the machine tool built-in base, a workbench main body arranged directly above the workbench base and being in a cylindrical structure, and an integrated driving assembly arranged in the workbench main body and used for correcting parts on the workbench main body. The present application can correct and center the parts inserted into the hole slots, and when the parts are placed on the workbench base and inserted into the hole slots, the integrated driving assembly can be used to correct the parts, so that the parts are always in the hole slots and at the center position, and manual correction or additional steps or mechanical correction of the workers are reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of correcting parts in holes, and particularly relates to a high-precision positioning rotary table with no gap worm drive. BACKGROUND

[0002] The rotary table is an ideal accessory of various numerical control milling machines and machining centers. It is installed on the main machine workbench in a horizontal manner, and various indexing rotary movements coordinated with the main machine are completed by using the control system of the main machine or a specially matched control system during work. For some small and medium-sized parts, multiple process machining can be realized under the same clamping, the productivity of the machine tool is improved, and the rotary table is an important accessory of boring machines, drilling machines, milling machines and slotting machines, which is used for machining holes, grooves and inclined surfaces with indexing requirements. When machining, the workbench is rotated, so that circular arc surfaces and circular arc grooves can be machined. According to different structures, the general rotary table is divided into horizontal rotary table, vertical rotary table and universal rotary table.

[0003] By reference: Chinese patent application No. 2022115402810 discloses a multi-station rotary combination machine tool, which comprises a base, a plurality of fixed stations are connected to the base, the fixed stations are fixed on the periphery of the base and arranged in the circumferential direction of the base, a center rotary table is fixedly connected to the base, a plurality of chucking chucks are connected to the end of the center rotary table away from the base, and the center rotary table can rotate to drive the chucking chucks to each fixed station. The machining head on each fixed station is fixed, the center rotary table is rotated to convey the machined part after the previous process to the next fixed station for machining, different machining processes are superimposed, and the working efficiency of each station is greatly improved. Since the positions of the fixed stations are fixed, the positions of the chucking chucks are relatively static, so that the centering correction of the center rotary table after each rotation can realize the centering correction of all the chucking chucks connected thereto at the same time, and the overall machining efficiency is greatly improved.

[0004] By reference: Chinese patent application No. 2019108193984 discloses an expansion pipe outer protrusion machining machine tool, which comprises a rack and a guide rail arranged on the rack, a synchronous mold and a clamp are arranged on the guide rail, the synchronous mold is arranged at both ends of the clamp, the clamp is used for clamping a workpiece and rotating the workpiece, and an extrusion device for machining outer protrusions at both ends of the workpiece at the same time is arranged between the clamp and the synchronous mold. The workpiece is detected and corrected before machining, and the workpiece can always rotate on the same axis, so that the consistency of uniform stress machining of both ends of the workpiece is effectively ensured, the workpiece is simultaneously machined and rotated and extruded at the machining end, the thickness of the end of the workpiece is increased more uniformly, the machining precision is improved, the structural strength of the workpiece is improved, and the connection strength and sealing effect between the outer protrusion of the expansion pipe and the external connecting piece are improved.

[0005] But the existing machine tool worktable rotates, the part to be machined is difficult to align the worktable placing hole, and the part is difficult to be in the central position, and the part is placed in the placing hole on the worktable by a mechanical hand or a clamping structure, and the part itself does not have a central calibration function, and once the part is placed in the hole and is not in the central state, after the worktable rotates, an additional step is required to correct the part in the central position, and the part is adjusted in the central position by an additional mechanical or manual method, so that the machine tool is relatively complex and tedious for part machining, and the machining operation of the machine tool is not continuous;

[0006] And when the worktable rotates through the worm, the worm will rotate after the worm stops running, and the worm will rotate with the worktable, which is due to the low precision of the worm transmission, and is difficult to stop immediately due to inertia, gravity and other factors, and will rotate at a small angle, so that the rotating worktable is low in efficiency, and often needs to be stopped or manually intervened, which is not conducive to the use of the machine tool.

[0007] At the same time, the rotating worktable does not have a clamping function for the part, and mostly only bears and supports the part, and once the part has other shapes, such as the center of gravity is forward, the volume is small, and the part is only placed on the rotating worktable, which is easy to fall off the worktable, therefore, we provide a high-precision positioning rotating worktable without gap worm transmission. SUMMARY

[0008] The purpose of the present application is to provide a high-precision positioning rotating worktable without gap worm transmission to solve the problems in the background art.

[0009] To achieve the above purpose, the present application provides the following technical scheme: a high-precision positioning rotating worktable without gap worm transmission, comprising a machine tool main body, a machine tool built-in base is arranged in the middle of the machine tool main body, and observation windows are movably arranged on both sides of the machine tool main body, further comprising:

[0010] A worktable base is arranged on the top of the machine tool built-in base.

[0011] A worktable main body is arranged directly above the worktable base, and the worktable main body is a cylindrical structure.

[0012] An integrated drive assembly is arranged in the worktable main body, which is used for correcting the part on the worktable main body.

[0013] A precision positioning assembly is arranged on the outer wall of the worktable main body, which is used for precision identification and limitation of the rotation of the worktable main body.

[0014] Preferably, the workbench body comprises an anti-skid outer shell body arranged on the top of the workbench base, a plurality of part insertion hole grooves are arranged around the top end of the anti-skid outer shell body, calibration clamping placement grooves are arranged on the inner walls of the two sides of the part insertion hole grooves, an inner bearing is arranged at the middle of the top end of the anti-skid outer shell body, and a plurality of protective lines are arranged on the top wall of the anti-skid outer shell body.

[0015] Preferably, the integrated drive assembly is located in the anti-skid outer shell body, and the integrated drive assembly comprises a second linkage ring and a first linkage ring, a plurality of first calibration clamping plates are arranged on the second linkage ring, a plurality of second calibration clamping plates are arranged on the first linkage ring, and the plurality of first calibration clamping plates and the plurality of second calibration clamping plates are respectively located in the calibration clamping placement grooves.

[0016] Preferably, a limiting snap ring is arranged at the bottom of the first linkage ring, a limiting concave ring is arranged at the top of the second linkage ring, and the first linkage ring and the second linkage ring are rotationally connected through the limiting snap ring and the limiting concave ring.

[0017] Preferably, a second locking drive motor is arranged on one side of the second linkage ring, a second drive gear is arranged in the direction of the output shaft of the second locking drive motor, a second drive tooth column group is arranged on the side wall of the second linkage ring, and the second drive tooth column group is meshingly connected with the second drive gear.

[0018] A first locking drive motor is arranged on one side of the first linkage ring, a first drive gear is arranged in the direction of the output shaft of the first locking drive motor, a first drive tooth column group is arranged on the side wall of the first linkage ring, and the first drive tooth column group is meshingly connected with the first drive gear.

[0019] Preferably, the top walls of the first calibration clamping plates and the second calibration clamping plates are in the same plane, a gap is arranged between the first calibration clamping plates and the second calibration clamping plates, the first calibration clamping plates and the second calibration clamping plates move simultaneously and in opposite directions each time, and the moving distance of the first calibration clamping plates and the second calibration clamping plates is less than the width of the part insertion hole groove.

[0020] The number of each pair of first calibration clamping plates and second calibration clamping plates is consistent with the number of part insertion hole grooves.

[0021] Preferably, a high-precision identification device is arranged on the outer wall of the anti-skid outer shell body, the high-precision identification device is provided with a precision positioning assembly, the precision positioning assembly comprises a protective shell, an identification camera is arranged at the bottom of the protective shell, a plurality of precision identification marks are arranged on the top of the workbench base, and the precision identification marks are used in cooperation with the identification camera.

[0022] Preferably, the high-precision identification device is connected with a linkage bottom plate through a telescopic rod, the bottom of the linkage bottom plate is provided with a reinforced bottom line, the top of the workbench base is provided with a reinforced line ring with an annular structure around the anti-skid outer shell, and the reinforced line ring is used in cooperation with the reinforced bottom line, and the width of the reinforced line ring is greater than the width of the reinforced bottom line.

[0023] Preferably, the angle between the two adjacent precision identification marks is sixty degrees, and the length of the precision identification mark is greater than the width of the protective shell.

[0024] Preferably, the sidewall of the machine tool body is provided with an operation panel, the two sides of the workbench base are provided with a guard plate, one side of the workbench base is provided with a worm gear transmission part, and the anti-skid outer shell is driven to rotate through the worm gear transmission part.

[0025] Compared with the prior art, the beneficial effects of the present application are:

[0026] The present application can correct and center the parts inserted into the part insertion hole slot. When the parts are placed on the workbench base and inserted into the part insertion hole slot, the integrated drive assembly can correct the parts, so that the parts are always in the center position of the part insertion hole slot, reducing the manual correction or additional steps of the workers or the mechanical correction, effectively saving time. At the same time, the integrated drive assembly also has a clamping effect. When the parts are inserted into the part insertion hole slot, the integrated drive assembly can correct and clamp the part insertion hole slot at the same time, which makes the correction, insertion and removal of the parts more convenient.

[0027] The precision positioning assembly can reduce the self-rotation of the anti-skid outer shell. When the anti-skid outer shell is rotating, the recognition camera can recognize the precision identification mark to improve the rotation accuracy and reduce errors and deviations. When the anti-skid outer shell completes the rotation work, the telescopic rod drives the linkage bottom plate to move down, so that the reinforced bottom line is in close contact with the reinforced line ring. The linkage bottom plate continuously applies downward pressure to the reinforced line ring, and the friction between the reinforced bottom line and the reinforced line ring is high, so the anti-skid outer shell can be fixed, reducing the small-angle rotation of the anti-skid outer shell due to the worm drive, low accuracy, manual intervention of the workers, etc.

[0028] The integrated driving assembly is located inside the anti-skid outer shell, and each pair of first and second correction clamping plates are placed in the correction clamping placement slot and are symmetrically arranged, When the part is inserted into the hole slot, a pair of first and second correction clamping plates will move in opposite directions at the same time, thereby correcting and clamping the part inserted into the hole slot, a plurality of second correction clamping plates are fixed on the first linkage ring, and a plurality of first correction clamping plates are fixed on the second linkage ring, so that the plurality of first and second correction clamping plates can be fixed or separated at the same time by rotating the second linkage ring and the first linkage ring, and the flexibility is high during use.

[0029] The cross section of the first and second correction clamping plates can be rectangular or right trapezoidal, and the length of the first and second correction clamping plates is less than the length of the correction clamping placement slot, so that the correction clamping placement slot is not blocked when the first and second correction clamping plates change displacement, and there is enough displacement space, and when the cross section of the first and second correction clamping plates is a right trapezoid, the distance between the two after displacement is smaller, and some special-shaped or small-volume parts can be corrected and clamped.

[0030] The first linkage ring and the second linkage ring are rotationally connected, and are connected to each other by the limiting concave ring and the limiting clasp, and the driving mode of the first linkage ring and the second linkage ring is the same, and is driven to rotate by the second locking driving motor and the first locking driving motor respectively, so that the driving cost of the first and second correction clamping plates is low, and it is not necessary to equip each first and second correction clamping plate with a moving structure as in the prior art, which greatly reduces the cost, and is more convenient and rapid to use, and multiple first and second correction clamping plates can be operated at the same time.

[0031] The present application is used in a relatively coherent manner, greatly reducing the manual participation of staff, and is used in a very coherent manner, and the precision positioning assembly can achieve high-precision identification and accurate fixing, and after the precision positioning assembly completes identification, the integrated driving assembly can correct and clamp the part inserted into the hole slot, and multiple parts can be corrected and clamped at the same time, the efficiency is high, the structure cost is low, and the use is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of the present application;

[0033] Figure 2 It is a machining area schematic diagram of the machine tool main body of the present application;

[0034] Figure 3 It is a schematic diagram of the workbench main body of the present application;

[0035] Figure 4 The first correction clamping plate of the present application is a schematic diagram;

[0036] Figure 5 The second drive gear column group of the present application is a schematic diagram;

[0037] Figure 6 The first correction clamping plate and the second correction clamping plate of the present application are a separate perspective schematic diagram;

[0038] Figure 7 The integrated drive assembly of the present application is an exploded view;

[0039] Figure 8 The first correction clamping plate and the second correction clamping plate of the present application are a separate schematic diagram;

[0040] Figure 9 The first correction clamping plate and the second correction clamping plate of the present application are a closed schematic diagram;

[0041] Figure 10 The telescopic rod of the present application is a perspective view;

[0042] Figure 11 The reinforcing bottom pattern of the present application is a bottom view;

[0043] Figure 12 The telescopic rod of the present application is a perspective view; Figure 3 The enlarged view of A in the figure;

[0044] In the figure: 100, machine tool main body; 101, observation window; 102, operation panel; 103, machine tool built-in base; 200, workbench base; 201, guard plate; 300, worm drive; 400, workbench main body; 401, high-precision identification device; 402, anti-skid outer shell; 403, part insertion hole groove; 404, calibration clamping placement groove; 405, built-in bearing; 406, protective pattern; 407, reinforcing pattern ring; 408, precision identification mark; 500, integrated drive assembly; 501, first correction clamping plate; 502, second correction clamping plate; 503, second linkage ring; 504, first linkage ring; 505, second drive gear; 506, first drive gear; 507, second drive gear column group; 508, second locking drive motor; 509, first drive gear column group; 510, first locking drive motor; 511, limiting snap ring; 512, limiting concave ring; 600, precision positioning assembly; 601, protective shell; 602, telescopic rod; 603, linkage bottom plate; 604, reinforcing bottom pattern; 605, identification camera. DETAILED DESCRIPTION

[0045] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0046] Please refer to Figures 1 to 12 The present application provides a technical solution: a high-precision positioning rotary workbench with no gap worm drive, comprising a machine tool main body 100, a machine tool built-in base 103 is arranged in the middle of the machine tool main body 100, and an observation window 101 is movably arranged on both sides of the machine tool main body 100, further comprising:

[0047] A workbench base 200 is arranged on the top of the machine tool built-in base 103.

[0048] A workbench main body 400 is arranged directly above the workbench base 200, and the workbench main body 400 is a cylindrical structure.

[0049] An integrated drive assembly 500 is arranged inside the workbench main body 400, which is used to correct the parts on the workbench main body 400.

[0050] A precision positioning assembly 600 is arranged on the outer wall of the workbench main body 400, which is used to identify and limit the rotation of the workbench main body 400.

[0051] The present application can correct and center the parts inserted into the part insertion hole slot 403. After the parts are placed in the workbench base 200 and the part insertion hole slot 403, the integrated drive assembly 500 can correct the parts, so that the parts are always in the center position of the part insertion hole slot 403, reducing the manual correction or additional steps of the workers or the mechanical correction, effectively saving time. At the same time, the integrated drive assembly 500 also has a clamping effect. After the parts are inserted into the part insertion hole slot 403, the integrated drive assembly 500 will correct and clamp the part insertion hole slot 403 at the same time, which makes the correction, insertion and removal of the parts more convenient.

[0052] In the present embodiment, preferably, as Figure 2 , Figure 3 , Figure 4, the workbench main body 400 includes an anti-skid outer shell 402, which is arranged on the top of the workbench base 200, a plurality of part insertion hole slots 403 are arranged around the top end of the anti-skid outer shell 402, calibration clamping placement grooves 404 are arranged on the inner walls of the two sides of the part insertion hole slots 403, an inner bearing 405 is arranged at the middle of the top end of the anti-skid outer shell 402, and a plurality of protective patterns 406 are arranged on the top wall of the anti-skid outer shell 402.

[0053] The part to be machined by the machine tool can be inserted into the part insertion hole slot 403, and the positions of the calibration clamping placement grooves 404 can be referred to Figure 3 , and the inserted part is just located between the two calibration clamping placement grooves 404.

[0054] In this embodiment, preferably, as Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 , the integrated drive assembly 500 is located in the anti-skid outer shell 402, and the integrated drive assembly 500 includes a second linkage ring 503 and a first linkage ring 504, a plurality of first correction clamping plates 501 are arranged on the second linkage ring 503, a plurality of second correction clamping plates 502 are arranged on the first linkage ring 504, and the plurality of first correction clamping plates 501 and the second correction clamping plates 502 are respectively located in the calibration clamping placement grooves 404.

[0055] The integrated drive assembly 500 is located inside the anti-skid outer shell 402, each pair of first correction clamping plates 501 and second correction clamping plates 502 is placed in the calibration clamping placement groove 404, and is symmetrically arranged, when the part is inserted into the part insertion hole slot 403, a pair of first correction clamping plates 501 and second correction clamping plates 502 will move in opposite directions at the same time, thereby correcting and clamping the part inserted into the part insertion hole slot 403, a plurality of second correction clamping plates 502 are fixed on the first linkage ring 504, a plurality of first correction clamping plates 501 are fixed on the second linkage ring 503, and with the rotation of the second linkage ring 503 and the first linkage ring 504, the plurality of first correction clamping plates 501 and the second correction clamping plates 502 can be fixed or separated at the same time, and the flexibility is high during use.

[0056] When the part inserted into the part insertion hole slot 403 needs to be corrected, the displacement of the first correction clamping plate 501 and the second correction clamping plate 502 can be changed, so that the two first correction clamping plates 501 and the second correction clamping plates 502 move in opposite directions at the same time, thereby correcting the part to the position of the part insertion hole slot 403.

[0057] And, the plurality of first correction clamping plates 501 and the plurality of second correction clamping plates 502 can be operated simultaneously, meaning that the plurality of parts can be simultaneously corrected to be centered and fixed.

[0058] In this embodiment, preferably, the first linkage ring 504 is provided with a limiting snap ring 511 at the bottom, the second linkage ring 503 is provided with a limiting concave ring 512 at the top, and the first linkage ring 504 and the second linkage ring 503 are rotationally connected through the limiting snap ring 511 and the limiting concave ring 512. Figure 7

[0059] The first linkage ring 504 and the second linkage ring 503 are rotationally connected, and the relative rotation angle of the two is less than sixty degrees. Since the first linkage ring 504 and the second linkage ring 503 rotate, they will respectively drive the plurality of second correction clamping plates 502 and the plurality of first correction clamping plates 501 to change displacement. Since the relative displacement distance of the first correction clamping plates 501 and the second correction clamping plates 502 is small, the relative rotation angle of the second linkage ring 503 and the first linkage ring 504 is also very small.

[0060] Since the second correction clamping plates 502 and the first correction clamping plates 501 change displacement by rotating the first linkage ring 504 and the second linkage ring 503, the trajectories of the displacement of the second correction clamping plates 502 and the first correction clamping plates 501 are also arc-shaped. Therefore, in the embodiment, the angle at which the first correction clamping plates 501 and the second correction clamping plates 502 are parallel to each other is set. When it is necessary to calibrate parts, the first correction clamping plates 501 and the second correction clamping plates 502 are just in the position state. Figure 9 Figure 9 The cross section of the first correction clamping plates 501 and the second correction clamping plates 502 can also be a right trapezoid, so that the distance between the two after displacement is smaller, and the correction and clamping of some special-shaped or small-volume parts can be realized.

[0061] The first linkage ring 504 and the second linkage ring 503 are rotationally connected, and the two are connected to each other through the limiting concave ring 512 and the limiting snap ring 511. The driving modes of the first linkage ring 504 and the second linkage ring 503 are the same, and they are driven to rotate by the second locking drive motor 508 and the first locking drive motor 510, respectively. Therefore, the driving cost of the first correction clamping plates 501 and the second correction clamping plates 502 is low, and it is not necessary to equip each of the first correction clamping plates 501 and the second correction clamping plates 502 with a moving structure, which greatly reduces the cost and makes the use more convenient and rapid. Moreover, the plurality of first correction clamping plates 501 and the plurality of second correction clamping plates 502 can be operated simultaneously.

[0062] In this embodiment, preferably, the first linkage ring 504 is provided with a limiting snap ring 511 at the bottom, the second linkage ring 503 is provided with a limiting concave ring 512 at the top, and the first linkage ring 504 and the second linkage ring 503 are rotationally connected through the limiting snap ring 511 and the limiting concave ring 512. Figure 4 Figure 5 ,​​​Figure 6 、 Figure 7 The side of the second linkage ring 503 is provided with a second locking driving motor 508, and the output shaft direction of the second locking driving motor 508 is provided with a second driving gear 505. The side wall of the second linkage ring 503 is provided with a second driving tooth column group 507, and the second driving tooth column group 507 is meshed and connected with the second driving gear 505.

[0063] The side of the first linkage ring 504 is provided with a first locking driving motor 510, and the output shaft direction of the first locking driving motor 510 is provided with a first driving gear 506. The side wall of the first linkage ring 504 is provided with a first driving tooth column group 509, and the first driving tooth column group 509 is meshed and connected with the first driving gear 506.

[0064] The rotation principle of the first linkage ring 504 and the second linkage ring 503 is consistent. The first linkage ring 504 is rotated by the meshing connection of the first driving gear 506 and the first driving tooth column group 509 after the first locking driving motor 510 is operated. The second linkage ring 503 is rotated by the meshing connection of the second driving gear 505 and the second driving tooth column group 507 after the second locking driving motor 508 is operated. However, the rotation directions of the second linkage ring 503 and the first linkage ring 504 are opposite. When the second linkage ring 503 rotates clockwise, the first linkage ring 504 rotates counterclockwise. When the second linkage ring 503 rotates counterclockwise, the first linkage ring 504 rotates clockwise. The rotation angles and rotation times of the second linkage ring 503 and the first linkage ring 504 are the same.

[0065] In this embodiment, preferably, as shown in Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 The top walls of the first correction clamping plate 501 and the second correction clamping plate 502 are in the same plane, and a gap is arranged between the first correction clamping plate 501 and the second correction clamping plate 502. The first correction clamping plate 501 and the second correction clamping plate 502 move simultaneously and in opposite directions each time, and the moving distance of the first correction clamping plate 501 and the second correction clamping plate 502 is less than the width of the part insertion hole groove 403.

[0066] The number of each pair of first correction clamping plates 501 and second correction clamping plates 502 is consistent with the number of part insertion hole grooves 403.

[0067] Make the part after the insertion of the part insertion hole slot 403, all can pass through the first correction clamping plate 501, second correction clamping plate 502 correction, clamping and centering, while the second linkage ring 503, the first linkage ring 504 rotates, a plurality of first correction clamping plate 501, second correction clamping plate 502 can change displacement at the same time, that is, to realize a plurality of parts at the same time correction, clamping and centering, very labor saving and convenient.

[0068] In this embodiment, preferably, as Figure 2 、 Figure 3 、 Figure 10 、 Figure 11 、 Figure 12 The outer wall of the anti-skid shell 402 is provided with a high-precision identification device 401, and the high-precision identification device 401 is provided with a precision positioning assembly 600. The precision positioning assembly 600 comprises a protective shell 601, and the bottom of the protective shell 601 is provided with an identification camera 605. The top of the workbench base 200 is provided with a plurality of precision identification marks 408, and the precision identification marks 408 are used in cooperation with the identification camera 605.

[0069] The precision positioning assembly 600 can reduce the self-rotation of the anti-skid shell 402. When the anti-skid shell 402 is rotating, the identification camera 605 can identify the precision identification mark 408 to improve the rotation accuracy and reduce errors and deviations.

[0070] In this embodiment, preferably, as Figure 2 、 Figure 3 、 Figure 10 、 Figure 11 、 Figure 12 The high-precision identification device 401 is connected with a linkage bottom plate 603 through a telescopic rod 602. The bottom of the linkage bottom plate 603 is provided with a reinforcing bottom line 604. The top of the workbench base 200 is provided with a reinforcing line ring 407 with an annular structure around the anti-skid shell 402. The reinforcing line ring 407 is used in cooperation with the reinforcing bottom line 604, and the width of the reinforcing line ring 407 is greater than the width of the reinforcing bottom line 604.

[0071] The linkage bottom plate 603 can be adjusted in height up and down through the telescopic rod 602. When the anti-skid shell 402 receives a stop operation instruction and the identification camera 605 identifies the precision identification mark 408, the linkage bottom plate 603 will move downward through the telescopic rod 602, so that the reinforcing bottom line 604 is in close contact with the reinforcing line ring 407. The linkage bottom plate 603 continuously applies downward pressure to the reinforcing line ring 407, and the friction between the reinforcing bottom line 604 and the reinforcing line ring 407 is high, so the anti-skid shell 402 can be fixed, reducing the small angle rotation of the anti-skid shell 402 due to the worm drive, low precision, manual intervention of the staff, etc.

[0072] In this embodiment, preferably, the angle between two adjacent precision identification marks 408 is sixty degrees, and the length of the precision identification mark 408 is greater than the width of the protective shell 601.

[0073] The number of the precision identification marks 408 corresponds to the part insertion hole groove 403. When the worm gear 300 and the anti-skid shell 402 stop running, the identification camera 605 can identify the existence of the precision identification mark 408, and continuously apply downward pressure to the reinforcing ring 407 through the linkage bottom plate 603. The reinforcing bottom 604 has high friction with the reinforcing ring 407, so the anti-skid shell 402 can be fixed, thereby achieving high precision and accurate positioning.

[0074] In this embodiment, preferably, as shown in Figure 1 、 Figure 2 The side wall of the machine tool body 100 is provided with an operation panel 102, the both sides of the workbench base 200 are provided with a guard plate 201, one side of the workbench base 200 is provided with the worm gear 300, and the anti-skid shell 402 rotates through the driving of the worm gear 300.

[0075] Working principle and use process: when the part is inserted into the part insertion hole groove 403, the second locking drive motor 508 and the first locking drive motor 510 can be operated at the same time. After the first locking drive motor 510 is operated, the first drive gear 506 and the first drive tooth column group 509 are engaged and connected, so that the first linkage ring 504 rotates. The second linkage ring 503 rotates through the operation of the second locking drive motor 508, and the second drive gear 505 and the second drive tooth column group 507 are engaged and connected, so that the second linkage ring 503 rotates. However, the rotation directions of the second linkage ring 503 and the first linkage ring 504 are opposite. When the second linkage ring 503 rotates clockwise, the first linkage ring 504 rotates counterclockwise. When the second linkage ring 503 rotates counterclockwise, the first linkage ring 504 rotates clockwise. The rotation angles and rotation times of the second linkage ring 503 and the first linkage ring 504 are the same.

[0076] When the second linkage ring 503 and the first linkage ring 504 rotate at the same time, the plurality of second correction clamping plates 502 located at the top of the first linkage ring 504 and the plurality of first correction clamping plates 501 located at the top of the second linkage ring 503 also change displacement at the same time. The plurality of second correction clamping plates 502 and the first correction clamping plates 501 are placed in the calibration clamping groove 404, clamp, center and calibrate the part located in the part insertion hole groove 403, so that the part is located in the central position of the part insertion hole groove 403, and can also play a clamping role.

[0077] The cross section of the first correction clamping plate 501 and the second correction clamping plate 502 can be rectangular or right trapezoidal, and the length of the first correction clamping plate 501 and the second correction clamping plate 502 is less than the length of the calibration clamping placement groove 404, so that when the first correction clamping plate 501 and the second correction clamping plate 502 change the displacement, the calibration clamping placement groove 404 will not be blocked, and there is enough displacement space, and when the cross section of the first correction clamping plate 501 and the second correction clamping plate 502 is right trapezoidal, the distance between the first correction clamping plate 501 and the second correction clamping plate 502 after displacement is smaller, and the first correction clamping plate 501 and the second correction clamping plate 502 can be used for correcting and clamping some special-shaped or small-volume parts.

[0078] The precision positioning assembly 600 can reduce the self-rotation of the anti-skid outer shell 402. When the anti-skid outer shell 402 is rotating, the recognition camera 605 can recognize the precision recognition mark 408 to improve the rotation accuracy and reduce errors and deviations. The linkage bottom plate 603 can be adjusted in height by the telescopic rod 602. When the anti-skid outer shell 402 receives a stop operation instruction and the recognition camera 605 recognizes the precision recognition mark 408, the linkage bottom plate 603 will move downward by the telescopic rod 602 to make the reinforcing bottom line 604 tightly contact with the reinforcing ring 407. The linkage bottom plate 603 continuously applies downward pressure to the reinforcing ring 407, and the friction between the reinforcing bottom line 604 and the reinforcing ring 407 is high, so the anti-skid outer shell 402 can be fixed, and the situations such as small-angle rotation, low accuracy, and manual intervention of the anti-skid outer shell 402 due to the worm drive are reduced, thereby achieving high accuracy and accurate positioning.

[0079] The above description is only used to illustrate the technical solutions of the present application, not to limit the present application. Other modifications or equivalent replacements to the technical solutions of the present application made by those skilled in the art should be covered in the scope of the claims of the present application.

Claims

1. A high-precision positioning rotary table with a gapless worm drive, comprising a machine tool body (100), a machine tool built-in base (103) provided in the middle of the machine tool body (100), and observation windows (101) movably provided on both sides of the machine tool body (100), characterized in that: Also include: Workbench base (200), set in the top of the machine built-in base (103); Workbench main body (400), set in the top of the workbench base (200), and the workbench main body (400) is a cylindrical structure; Integrated drive assembly (500), set in the workbench main body (400) inside, for the workbench main body (400) on the parts to correct effect; Precision positioning assembly (600), set in the outer wall of the workbench main body (400), for the rotation of the workbench main body (400) to play the role of precision identification and limit; The workbench main body (400) includes an anti-skid shell (402), the anti-skid shell (402) is set on the top of the workbench base (200), the top of the anti-skid shell (402) is provided with a plurality of part insertion hole slots (403), the inner wall of the both sides of the part insertion hole slot (403) is provided with a calibration clamping slot (404), the top of the anti-skid shell (402) is provided with an inner bearing (405), the top wall of the anti-skid shell (402) is provided with a plurality of protective lines (406); The integrated drive assembly (500) is located in the anti-skid shell (402), and the integrated drive assembly (500) includes a second linkage ring (503) and a first linkage ring (504), the second linkage ring (503) is provided with a plurality of first correction clamping plates (501), the first linkage ring (504) is provided with a plurality of second correction clamping plates (502), and the plurality of first correction clamping plates (501), second correction clamping plate (502) is located in the calibration clamping slot (404) respectively; The bottom of the first linkage ring (504) is provided with a limiting snap ring (511), the top of the second linkage ring (503) is provided with a limiting concave ring (512), and the first linkage ring (504) and the second linkage ring (503) are rotatably connected through the limiting snap ring (511) and the limiting concave ring (512); The top wall of the first correction clamping plate (501) and the second correction clamping plate (502) is in the same plane, and the first correction clamping plate (501) and the second correction clamping plate (502) are provided with a gap, and each time the first correction clamping plate (501) and the second correction clamping plate (502) move at the same time, and move in opposite directions, the first correction clamping plate (501) and the second correction clamping plate (502) move distance is less than the width of the part insertion hole slot (403); And the number of each pair of first correction clamping plate (501), second correction clamping plate (502) is consistent with the number of part insertion hole slot (403).

2. The high-precision positioning rotary table with no backlash of the worm drive according to claim 1, characterized in that: The side of the second linkage ring (503) is provided with a second locking driving motor (508), the output shaft direction of the second locking driving motor (508) is provided with a second driving gear (505), the side wall of the second linkage ring (503) is provided with a second driving tooth column group (507), and the second driving tooth column group (507) is meshed with the second driving gear (505); The side of the first linkage ring (504) is provided with a first locking driving motor (510), the output shaft direction of the first locking driving motor (510) is provided with a first driving gear (506), the side wall of the first linkage ring (504) is provided with a first driving tooth column group (509), and the first driving tooth column group (509) is meshed with the first driving gear (506).

3. The high-precision positioning rotary table with no backlash of the worm drive according to claim 2, characterized in that: The outer wall of the anti-skid outer shell (402) is provided with a high-precision identification device (401), the high-precision identification device (401) is provided with a precision positioning assembly (600), the precision positioning assembly (600) comprises a protective shell (601), the bottom of the protective shell (601) is provided with an identification camera (605), the top of the workbench base (200) is provided with a plurality of precision identification marks (408), and the precision identification mark (408) is used in cooperation with the identification camera (605).

4. The high-precision positioning rotary table with no backlash of the worm drive according to claim 3, characterized in that: The high-precision identification device (401) is connected with a linkage bottom plate (603) through a telescopic rod (602), the bottom of the linkage bottom plate (603) is provided with a reinforcing bottom line (604), the top of the workbench base (200) is provided with a reinforcing line ring (407) with an annular structure around the anti-skid outer shell (402), and the reinforcing line ring (407) is used in cooperation with the reinforcing bottom line (604), and the width of the reinforcing line ring (407) is greater than the width of the reinforcing bottom line (604).

5. The high-precision positioning rotary table with no backlash of the worm drive according to claim 4, characterized in that: The angle between the two adjacent precision identification marks (408) is sixty degrees, and the length of the precision identification mark (408) is greater than the width of the protective shell (601).

6. The high-precision positioning rotary table with no backlash of the worm drive according to claim 1, characterized in that: The side wall of the machine tool body (100) is provided with an operation panel (102), the two sides of the workbench base (200) are provided with a guard plate (201), one side of the workbench base (200) is provided with a worm gear transmission part (300), and the anti-skid outer shell (402) is driven to rotate by the worm gear transmission part (300).

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