Rotary table with lifting adjusting function

Abstract

The utility model discloses a rotary table with a lifting adjusting function, and belongs to the technical field of rotary tables. The rotary table comprises a base of a cavity shell structure. The driving assembly comprises a driving motor and a transmission assembly, the driving motor is installed on the base, the transmission assembly is installed in an inner cavity of the base, and an output shaft of the driving motor is connected with the power input end of the transmission assembly; the lifting assemblies are vertically installed on the base in an array mode, the power input end of each lifting assembly penetrates through a shell of the base and extends to an inner cavity of the base, and the power input ends of the lifting assemblies are connected with the power output end of the transmission assembly; and the rotary table base is installed at the power output end of the lifting assembly, and a rotary table body is rotationally installed on the rotary table base and used for installing a workpiece. The driving assembly is used for providing power for the lifting assembly, the lifting assembly is used for horizontal lifting adjustment of the rotary table base, and the problems that an existing rotary table lifting adjusting mechanism is exposed, adjustment clamping stagnation is likely to occur, and shielding is caused are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a rotary table technical field, specifically related to a rotary table with lifting adjustment function. BACKGROUND

[0002] Rotary table is also called rotary disc or rotary table, which is widely used in various types of machine tools, mainly used for carrying and fixing workpieces, so that the workpieces can rotate 360 degrees on the machine tool, facilitating workpiece machining and improving the flexibility and efficiency of machining.

[0003] The existing rotary table has two types of height fixed type and lifting type. The height fixed type rotary table support height is not adjustable, which has certain limitations on the height range of the installed workpiece. On the other hand, it is not friendly to operators of different heights, and it is not convenient for operators to load and unload workpieces and use machining operation. The lifting adjustment mechanism of the existing lifting type rotary table is generally exposed outside, which is easy to attach dust and impurities after long-term use, causing lifting adjustment jam and affecting normal lifting function. At the same time, the exposed lifting adjustment mechanism is easy to block the movement of other mechanical equipment around the rotary table, affecting the workpiece machining. SUMMARY

[0004] The technical problem to be solved is:

[0005] In order to avoid the shortcomings of the prior art, the utility model provides a rotary table with lifting adjustment function, which is closed and arranged on the base and supports the rotary table base by arranging the lifting assembly for lifting adjustment of the rotary table base. The transmission part of the driving assembly is arranged in the inner cavity of the base. The driving assembly is used to drive the lifting assembly to lift the rotary table base, so as to solve the problems of adjustment jam and obstruction caused by the exposed lifting adjustment mechanism of the existing rotary table.

[0006] The technical scheme of the utility model is: a rotary table with lifting adjustment function, comprising:

[0007] The base is a hollow shell structure;

[0008] The driving assembly comprises a driving motor and a transmission assembly. The driving motor is installed on the base, and the transmission assembly is installed in the inner cavity of the base. The output shaft of the driving motor is connected with the power input end of the transmission assembly;

[0009] The lifting assembly is provided with multiple groups, which are installed vertically on the base. The power input end of each lifting assembly extends to the inner cavity of the base through the shell of the base. The power input end of the lifting assembly is connected with the power output end of the transmission assembly;

[0010] The rotary table base is installed on the power output end of the lifting assembly, and the rotary table body is rotatably installed on the rotary table base. The rotary table body is used to install the workpiece;

[0011] The driving motor of the driving assembly drives the lifting assembly to drive the rotating base to lift or lower through the transmission assembly.

[0012] The further technical scheme of the utility model is: the transmission assembly includes:

[0013] The driving gear is coaxially and rotationally connected with the output shaft of the driving motor as the power input end of the transmission assembly;

[0014] The plurality of driven gears are rotationally installed in the inner cavity of the base through the rotating shaft and surround the outer ring of the driving gear, and each driven gear is engaged with the driving gear; the driven gear is coaxially and rotationally connected with the rotating shaft;

[0015] Each belt wheel transmission group is connected with one rotating shaft and one power input end of the lifting assembly, and is used for synchronously transmitting the rotation of the driven gear to the power input end of the lifting assembly.

[0016] The further technical scheme of the utility model is: the driving gear and the driven gear are cylindrical gears and are installed in the same plane.

[0017] The further technical scheme of the utility model is: the belt wheel transmission group includes:

[0018] The driving belt wheel is coaxially and rotationally installed on the rotating shaft;

[0019] The passive belt wheel is installed on the power input end of the lifting assembly;

[0020] And the synchronous belt is connected with the driving belt wheel and the passive belt wheel.

[0021] The further technical scheme of the utility model is: the lifting assembly includes:

[0022] The sliding sleeve is vertically and fixedly installed on the base, the first cavity is arranged in the sliding sleeve, the first cavity penetrates the top end of the sliding sleeve, and the bottom end of the sliding sleeve is provided with a through hole penetrating the first cavity;

[0023] And the screw nut lifting assembly is arranged in the sliding sleeve, wherein the power input end of the screw nut lifting assembly penetrates the cavity of the base and is connected with the passive belt wheel, and the power output end of the screw nut lifting assembly penetrates the sliding sleeve and is fixedly connected with the rotating base.

[0024] The further technical scheme of the utility model is: the screw nut lifting assembly includes:

[0025] The lifting column is coaxially and slidingly installed in the first cavity, the second cavity is arranged in the lifting column, the second cavity penetrates the bottom end of the lifting column, the threaded sleeve is installed in the second cavity and close to the bottom end of the lifting column, and the top end of the lifting column is fixedly connected with the rotating base as the power output end of the screw nut lifting assembly.

[0026] And the screw rod, one end is the threaded rod part, the other end is the light rod part, the screw rod vertically penetrates the shell of the upper end of the base and the through hole of the bottom end of the sliding sleeve, the threaded rod part is threadedly connected with the threaded sleeve and extends into the second cavity of the lifting column, and the light rod part extends into the cavity of the base and is fixedly connected with the driven pulley as the power input end of the screw nut lifting assembly.

[0027] The further technical scheme of the utility model is that the cross section of the outer wall of the lifting column is consistent with the cross section profile of the first cavity.

[0028] The further technical scheme of the utility model is that the lifting assembly further includes a limiting piece, the limiting piece is installed at the top end of the threaded rod part of the screw rod and is matched with the second cavity of the lifting column, and is used for limiting the axial position of the threaded rod part rotating into the second cavity.

[0029] The further technical scheme of the utility model is that the rotary table with the lifting adjusting function further includes a plurality of shock absorbers, one shock absorber is fixedly installed between each lifting column and the rotary table base and is used for playing a shock absorbing role on the rotary table base.

[0030] The further technical scheme of the utility model is that the lower end surface of the base is provided with a plurality of shock absorbing legs and is used for shock absorbing the base.

[0031] The utility model discloses the rotary table with the lifting adjusting function, drives the driving motor to drive the driving gear rotation, drives the driven gear rotation, and then the rotation of the driven gear is synchronously transmitted to the screw rod through the pulley transmission group, the screw rod rotates and drives the lifting column to slide up and down in the sliding sleeve, the up and down movement of the rotary table base is realized, and then the lifting of the rotary table body installed on the rotary table base is realized.

[0032] The utility model discloses the whole lifting mechanism includes driving assembly and lifting assembly, the transmission assembly of driving motor output power transmission to the screw rod in driving assembly is installed in the cavity of the base, the light rod part of the screw rod in lifting assembly is located in the cavity of the base as the power input end, the threaded rod part of the screw rod is located in the sliding sleeve and the lifting column, the threaded sleeve that the screw rod is connected with the lifting column is installed in the lifting column, all the power transmission parts for the lifting of the rotary table are effectively closed in the chamber of the base or the lifting column, avoid the impurity from entering in the process of the lifting of the rotary table, guarantee the lifting control reliability, improve the service life of the whole lifting mechanism.

[0033] The number of lifting assemblies is matched with the number of driven gears, and one-to-one correspondence is achieved, the driving gear can drive multiple driven wheels to rotate at the same time, and multiple lifting assemblies are synchronously lifted through the synchronous belt driven by the belt transmission set, so that the stability of the rotary table base lifting is ensured.

[0034] The utility model discloses have the shock -absorbing function, the utility model discloses a shock absorber is installed between every lifting column and rotary table base, install multiple shock -absorbing legs at the bottom of base, and the shock absorber provides shock -absorbing support to rotary table base, and the shock -absorbing leg provides shock -absorbing support to base, improve the stability in the working process of rotary table body, reduce the vibration impact of rotary table base to lifting assembly, improve the service life of lifting assembly. DRAWINGS

[0035] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description only is some embodiments of the utility model, for ordinary skilled person in the art comes, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.

[0036] Figure 1 It is a rotary table three-dimensional structure schematic diagram with lifting adjustment function for the utility model;

[0037] Figure 2 It is rotary table base and lifting column connection structure schematic diagram in the utility model;

[0038] Figure 3 It is base and sliding sleeve installation schematic diagram in the utility model;

[0039] Figure 4 It is base internal transmission assembly installation schematic diagram in the utility model;

[0040] Figure 5 It is base internal structure and lifting assembly internal structure cross section schematic diagram in the utility model.

[0041] In the drawing: 1. base, 2. driving assembly, 21. driving motor, 22. output shaft, 23. driving gear, 24. driven gear, 25. rotating shaft, 26. driving pulley, 27. driven pulley, 28. synchronous belt, 3. lifting assembly, 31. sliding sleeve, 32. first cavity, 33. through -hole, 34. lifting column, 35. second cavity, 36. threaded sleeve, 37. screw rod, 38. threaded rod part, 39. light rod part, 310. limit piece, 4. rotary table base, 5. rotary table body, 6. shock absorber, 7. shock -absorbing leg. DETAILED DESCRIPTION

[0042] Clearly, the described embodiments are merely a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all the other embodiments obtained by the ordinary skilled in the art without making creative labor are within the protection scope of the present utility model.

[0043] The utility model discloses a rotary table with lifting adjustment function embodiment, as shown in the figure, including: base 1, drive assembly 2, four lifting assemblies 3, rotary table base 4, rotary table body 5, four shock absorbers 6 and four shock absorber feet 7. Figure 1

[0044] The base 1 is a cavity shell structure, and the upper end shell and the lower end shell are parallel and horizontally arranged, and a circumferential circle between the upper end shell and the lower end shell is enclosed and blocked by a side plate. The side plate, the upper end shell and the lower end shell form the shell structure and the internal cavity of the base 1. The base 1 is used for installing and supporting other components in the rotary table with lifting adjustment function.

[0045] The drive assembly 2 comprises a driving motor 21 and a transmission assembly, wherein the driving motor 21 is installed on the base 1 as a power source, the transmission assembly is installed in the inner cavity of the base 1, the output shaft 22 of the driving motor 21 is connected with the transmission assembly, and the power is transmitted to the lifting assembly 3 through the transmission assembly.

[0046] Specifically, as shown in the figure, Figures 3-5 In the embodiment, the driving motor 21 is vertically installed on the upper end shell of the base 1 and located at the middle position of the shell, the output shaft 22 of the driving motor 21 vertically penetrates the shell of the base 1 and extends into the cavity of the base 1, and the output shaft 22 is rotationally connected with the shell of the base 1.

[0047] ​The transmission assembly comprises one driving gear 23, four driven gears 24 and four belt wheel transmission groups. The driving gear 23 is the power input end of the transmission assembly. The driving gear 23 is a cylindrical gear coaxially sleeved on the output shaft 22 of the driving motor 21 and is rotationally connected with the output shaft 22 through a key. The installation of the driving gear 23 is axially limited by a retaining ring. The four driven gears 24 are rotationally installed on the inner cavity of the base 1 through one rotating shaft 25 and are arrayed around the outer circle of the driving gear 23. Each driven gear 24 is in mesh with the driving gear 23. The rotating shaft 25 is parallel to the output shaft 22 and rotationally connected with the shell at the upper end of the base 1 and the shell at the lower end of the base 1 at both ends thereof. The driven gear 24 is coaxially sleeved on the rotating shaft 25 and fixedly connected with the rotating shaft 25. In another embodiment, the driven gear 24 is rotationally connected with the rotating shaft 25 through a key and axially limited by a retaining ring. In order to ensure the meshing transmission effect of the driving gear 23 and the driven gear 24, the driving gear 23 and the four driven gears 24 are installed on the same horizontal plane. The four belt wheel transmission groups are correspondingly arranged with the four driven gears 24. Each belt wheel transmission group is correspondingly connected with one rotating shaft 25 and the power input end of one lifting assembly 3, for synchronously transmitting the rotation of the driven gear 24 to the power input end of the lifting assembly 3. The belt wheel transmission group comprises a driving belt wheel 26, a driven belt wheel 27 and a synchronous belt 28. The driving belt wheel 26 is fixedly installed on the rotating shaft 25 below the driven gear 24. The driven belt wheel 27 is installed on the power input end of the lifting assembly 3. The driving belt wheel 26 and the driven belt wheel 27 are installed on the same plane. The synchronous belt 28 connects the driving belt wheel 26 and the driven belt wheel 27. The driven belt wheel 27 is the power output end of the whole transmission assembly.

[0048] When the driving assembly 2 works, the driving motor 21 drives the driving gear 23 to rotate, thereby driving the driven gear 24 to rotate. Since the driven gear 24 and the rotating shaft 25 are fixed, the rotating shaft 25 is driven to rotate, and then the driving belt wheel 26 is driven to rotate by the rotating shaft 25. The rotation of the driving belt wheel 26 is synchronously transmitted to the driven belt wheel 27 through the synchronous belt 28, thereby driving the power input end of the lifting assembly 3 to rotate.

[0049] As shown in Figures 1-5 , the lifting assembly 3 comprises four groups, which are vertically arrayed and installed on four corner positions of the base 1. The power input end of each lifting assembly 3 extends to the inner cavity of the base 1 through the shell of the base 1 and is fixedly connected with the driven belt wheel 27 of the transmission assembly. The upper ends of the four lifting assemblies 3 correspond to the four corner positions of the horizontal support turntable base 4. The lifting assembly 3 adopts a screw nut lifting structure for lifting and adjusting the turntable base 4.

[0050] Specifically, the lifting assembly 3 comprises a sliding sleeve 31, a lifting column 34, a screw rod 37, a threaded sleeve 36 and a limiting piece 310. As shown in Figure 3 ,Figure 5 As shown, the sliding sleeve 31 is a cuboid structure, vertically fixedly installed on the base 1, and the first cavity 32 is arranged in the sliding sleeve 31. The first cavity 32 penetrates the top end of the sliding sleeve 31, and the through hole 33 penetrating the first cavity 32 is arranged at the bottom end of the sliding sleeve 31. The lifting column 34 is inserted into the first cavity 32 from the top opening of the sliding sleeve 31 and is coaxially and slidingly installed in the first cavity 32. The outer wall of the lifting column 34 has a cross section consistent with the cross section profile of the first cavity 32, and the lifting column 34 can slide up and down in the first cavity 32. The second cavity 35 is arranged in the lifting column 34, and the second cavity 35 penetrates the bottom end of the lifting column 34. The threaded sleeve 36 is fixedly installed in the second cavity 35 near the bottom end of the lifting column 34, and the threaded sleeve 36 is provided with internal threads for threadedly connecting with the lead screw 37. The lead screw 37 has a threaded rod portion 38 at one end and a light rod portion 39 at the other end. The lead screw 37 penetrates the housing at the upper end of the base 1 and the through hole 33 at the bottom end of the sliding sleeve 31 in a vertical manner. The threaded rod portion 38 of the lead screw 37 is threadedly connected with the threaded sleeve 36 and extends into the second cavity 35 of the lifting column 34. The light rod portion 39 of the lead screw 37 extends into the cavity of the base 1, and the light rod portion 39 is fixedly connected with the driven pulley 27 as the power input end of the lifting assembly 3. Meanwhile, the light rod portion 39 of the lead screw 37 is rotatably connected with the housing of the base 1. In order to reduce the rotational friction, the light rod portion 39 is rotatably connected with the housing of the base 1 through a bearing. The limiting piece 310 is installed at the top end of the threaded rod portion 38 of the lead screw 37 and is adapted to the second cavity 35 of the lifting column 34. The limiting piece 310 can move up and down in the second cavity 35 along with the threaded rod portion 38, and the limiting piece 310 is used to limit the axial position of the lead screw 37 in the second cavity 35. The lifting column 34 is the power output end of the lifting assembly 3, and the top end of each lifting column 34 is fixedly connected with the bottom surface of the turntable base 4 through a shock absorber 6. The lower end of the shock absorber 6 is fixedly connected with the top end of the lifting column 34, and the upper end of the shock absorber 6 is fixedly connected with the bottom surface of the turntable base 4. The shock absorber 6 plays a role in damping the turntable base 4.

[0051] When the lifting assembly 3 works, the lead screw 37 is driven to rotate by the driven pulley 27. The threaded sleeve 36 fixedly installed at the bottom end of the lifting column 34 is threadedly engaged with the lead screw 37. The outer side wall of the lifting column 34 is in contact with the inner wall surface of the first cavity 32 of the sliding sleeve 31, so that the lifting column 34 slides up and down in the first cavity 32 of the sliding sleeve 31. The four lifting assemblies 3 are synchronously driven by the driving motor 21 to simultaneously lift or simultaneously lower. The lifting and lowering are realized by the forward and reverse rotation of the driving motor 21, so as to realize the horizontal lifting of the turntable base 4.

[0052] The turntable base 4 is a support body of the turntable body 5. The turntable body 5 is rotatably installed at the central position of the turntable base 4 and is used to install a workpiece. The lifting of the turntable base 4 is driven by the lifting assembly 3, and the lifting of the turntable body 5 is driven.

[0053] The four shock-absorbing feet 7 are evenly arranged on the lower end surface of the base 1, and play a shock-absorbing role on the base 1, and cooperate with the shock absorber 6, so that the whole rotary table has good shock-absorbing effect, and impact on the lifting assembly 3 during workpiece machining can be avoided, and the stability and service life during the working process of the whole rotary table are improved.

[0054] The rotary table provided by the embodiment of the utility model has the lifting adjusting function, the output shaft 22 of the driving motor 21 drives the driving pulley 23 to rotate, the driving pulley 23 rotates and drives the four driven gears 24 to rotate, at this time, the four rotating shafts 25 rotate and further drive the four driving pulleys 26 to rotate, the four driving pulleys 26 drive the corresponding passive pulleys 27 through the respective synchronous belts 28, the four passive pulleys 27 drive the respective installed lead screws 37 to rotate, the lead screw 37 is in threaded connection with the threaded sleeve 36 fixed at the bottom of the lifting column 34, the lifting column 34 is vertically embedded in the first cavity 32 of the sliding sleeve 31, when the lead screw 37 rotates, the lifting column 34 moves upwards or downwards in the sliding sleeve 31, the four lifting columns 34 move upwards and downwards at the same time, thereby driving the rotary table base 4 installed at the top end of the lifting column 34 to lift.

[0055] The embodiment of the utility model has the following beneficial effects: the transmission assembly in the driving assembly 2 is installed in the cavity of the base 1, the light rod part 39 of the lead screw 37 in the lifting assembly 3 is located in the cavity of the base 1 as the power input end of the lifting assembly 3, the threaded rod part 38 of the lead screw 37 is located in the lifting column 34, the threaded sleeve 36 in threaded connection with the lead screw 37 is installed in the bottom end of the inner cavity of the lifting column 34, all power transmission structures for realizing the lifting of the rotary table are effectively closed in the cavity of the base 1 or the lifting column 34, so that impurities entering during the lifting of the rotary table is avoided, the lifting control reliability is ensured, and the service life of the whole lifting mechanism is improved.

[0056] The above only describes the preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A turntable with lifting and adjusting function, characterized in that, The utility model relates to a kind of vertical array type multi-axis rotary table, including: Base, hollow shell structure is to the cavity; Drive assembly, it includes drive motor and transmission assembly;Wherein, drive motor is installed on base, transmission assembly is installed in the inner cavity of base;The output shaft of drive motor is connected with the power input end of transmission assembly; Lifting assembly is equipped with multiple groups, vertically arrayed installation is on base, the power input end of each lifting assembly extends to the inner cavity of base through the shell of base, and the power output end of lifting assembly is connected with transmission assembly; And rotary table base, it is installed on the power output end of lifting assembly, rotary table body is rotatably installed on it, and rotary table body is used to install workpiece; Wherein, drive motor of drive assembly drives lifting assembly through transmission assembly to drive rotary table base to lift.

2. The turntable with lifting adjustment function according to claim 1, characterized in that, The transmission assembly includes: Driving gear, as the power input end of transmission assembly and the output shaft of drive motor coaxial anti-rotation connection; Multiple driven gears, are rotatably installed in the inner cavity of base by shaft, and surround the outer circle of driving gear, and each driven gear is engaged with driving gear;Driven gear is coaxially anti-rotation connected with shaft; And multiple belt wheel transmission groups, each belt wheel transmission group corresponds to connect a shaft and the power input end of one lifting assembly, for synchronously transmitting the rotation of driven gear to the power input end of lifting assembly.

3. The turntable with lifting adjustment function according to claim 2, characterized in that, The driving gear, driven gear is cylindrical gear, installed in the same plane.

4. The turntable with lifting adjustment function according to claim 2, characterized in that, The belt wheel transmission group includes: Driving pulley, coaxial anti-rotation installation is on shaft; Passive pulley, it is installed on the power input end of lifting assembly; And synchronous belt, connect driving pulley and passive pulley.

5. The turntable with lifting adjustment function according to claim 4, characterized in that, The lifting assembly includes: Sleeve, vertically fixedly installed on base, first cavity is arranged in sleeve, first cavity penetrates the top end of sleeve, and the bottom end of sleeve is provided with through hole penetrating first cavity; And screw-nut lifting assembly, is arranged in sleeve, wherein, the power input end of screw-nut lifting assembly is connected with passive pulley by penetrating the cavity of base, and the power output end of screw-nut lifting assembly is fixedly connected with rotary table base after penetrating sleeve.

6. The turntable with lifting adjustment function according to claim 5, characterized in that, The screw-nut lifting assembly includes: Lifting column, coaxially slidingly installed in first cavity, second cavity is arranged in lifting column, and second cavity penetrates the bottom end of lifting column;Threaded sleeve is installed in second cavity close to the bottom end of lifting column;The top end of lifting column is fixedly connected with rotary table base as the power output end of screw-nut lifting assembly; And screw rod, one end is screw rod part, the other end is light rod part, screw rod penetrates the shell of upper end of base and the through hole of sleeve bottom end vertically;Its screw rod part is threadedly connected with threaded sleeve, and extends into the second cavity of lifting column;Its light rod part extends to the cavity of base, and light rod part is fixedly connected with passive pulley as the power input end of screw-nut lifting assembly.

7. The turntable with lifting adjustment function according to claim 6, characterized in that, The cross section of the outer wall of the lifting column is consistent with the cross section profile of the first cavity.

8. The turntable with lifting adjustment function according to claim 6, characterized in that, The screw-nut lifting assembly further includes limiting piece, limiting piece is installed on the top end of the screw rod part of screw rod, and is matched with the second cavity of lifting column, for limiting the axial position of screw rod part rotating into second cavity.

9. The turntable with lifting adjustment function according to claim 6, characterized in that, The rotary table with the lifting adjustment function further comprises a plurality of shock absorbers, one of which is fixedly installed between each lifting column and the rotary table base, and used for damping the rotary table base.

10. The turntable with lifting adjustment function according to claim 1, characterized in that, The lower end surface of the base is provided with a plurality of damping legs for damping the base.

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