Multi-station rotary table and machining equipment

Abstract

The application discloses a multi-station rotary table and machining equipment, wherein the multi-station rotary table comprises a mounting base, a plurality of worktables movably mounted on the mounting base; the lower side of each worktable is provided with a first clamping part, and each first clamping part is clamped with a rotating piece; a plurality of rotating pieces are connected through a first connecting piece rotatably connected with each rotating piece; the first connecting piece is rotatably connected with a second connecting piece, and the second connecting piece is rotatably connected with the output end of a first linear driving mechanism; the first linear driving mechanism is mounted on the mounting base and used for driving the plurality of rotating pieces to synchronously rotate; a plurality of mounting holes are formed in the two ends of the mounting base and used for being adaptively mounted with tail seats at the two ends of a four-axis bridge plate jig. The multi-station rotary table can directly replace the original bridge plate of the four-axis bridge plate jig, reduces secondary clamping, and can meet the use demand of synchronous operation of multiple products.

Description

Technical Field

[0001] This invention relates to the field of machining technology, and more specifically, to a multi-station rotary table and machining equipment. Background Technology

[0002] Machining is an important processing method in the equipment manufacturing field, widely used in the production of mechanical parts, electronic product structural components, and various precision workpieces. Because different parts have different requirements, machining equipment not only needs stable machining capabilities but also needs to be able to adjust the workpiece's posture and perform multi-angle indexing during machining to meet the demands of multi-faceted, multi-process, and high-efficiency machining.

[0003] Some existing processing equipment is equipped with four-axis bridge plate fixtures, such as Figure 16 As shown, this type of structure is used for indexing machining of workpieces. It can only achieve rotational indexing in a single horizontal direction, limiting its adaptability to different machining orientations. When dealing with workpieces requiring multi-faceted or complex angle machining, it is often difficult to complete all machining operations in a single setup. To complete subsequent machining, the workpiece usually needs to be re-clamped, or additional fixtures need to be used. This not only increases clamping and adjustment time but also easily introduces errors during repeated positioning, affecting the final machining quality. On the other hand, while using higher-degree-of-freedom machining equipment, such as a five-axis machining center, can better meet complex machining needs, the overall equipment cost is higher, easily increasing the procurement and usage burden on enterprises.

[0004] Furthermore, with the increasing demand for mass production and continuous operation, processing equipment not only needs to meet the indexing requirements of individual workpieces, but also needs to accommodate the application requirements of simultaneous processing of multiple workpieces. Therefore, there is an urgent need to design a multi-station rotary table and processing equipment to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to provide a multi-station rotary table and processing equipment to solve the problems of inconvenience in multi-face processing when using traditional four-axis bridge plate fixtures on some machine tools, high cost of five-axis machining centers, and difficulty in meeting the needs of simultaneous processing of multiple workpieces.

[0006] To achieve this objective, the present invention adopts the following technical solution: A multi-station rotary table includes a mounting base on which multiple worktables are movably mounted; Each of the worktables has a first latching part on its lower side, and each first latching part latches with a rotating component; the multiple rotating components are connected to each other by a first connecting component that is rotatably connected to each rotating component; a second connecting component is rotatably connected to the first connecting component, and the second connecting component is rotatably connected to the output end of the first linear drive mechanism; the first linear drive mechanism is mounted on the mounting base to drive the multiple rotating components to rotate synchronously, thereby driving the multiple worktables to rotate synchronously. The mounting base has several mounting holes at both ends for fitting and mounting to the tailstocks at both ends of the four-axis bridge plate fixture.

[0007] Furthermore, the first connecting member includes a main connecting part and a cantilever arm that are fixed to each other; the main connecting part is rotatably connected to a plurality of the rotating parts, and the rotation connection points of the plurality of rotating parts and the main connecting part are collinear, and the line on which they are located is parallel to the extension and retraction direction of the output end of the first linear drive mechanism; the cantilever arm is rotatably connected to the second connecting member.

[0008] Furthermore, the workbench is provided with a plurality of first positioning elements evenly distributed along the circumferential direction of the workbench rotation center on the side facing the mounting base, and the mounting base is provided with a plurality of second positioning elements corresponding to and cooperating with the first positioning elements on the side facing the workbench. It also includes a second linear drive mechanism; Each of the worktables is connected at its lower end to the output end of a corresponding second linear drive mechanism, so that the worktable has a first position and a second position; when the worktable is in the first position, the first positioning member and the corresponding second positioning member are engaged with each other; when the worktable is in the second position, the first positioning member and the corresponding second positioning member are disengaged from each other.

[0009] Furthermore, the plurality of the rotating components are arranged in an array along the X direction; in the Y direction, each side of the rotating component is provided with a first connecting component, a second connecting component, and a first linear drive mechanism; wherein, the Y direction is perpendicular to the X direction; The rotating component has a third position and a fourth position, with a preset rotation angle between the third position and the fourth position; When the rotating component is in the third position, the output end of the first linear drive mechanism corresponding to one side of the rotating component in the Y direction is in the extended state, and the output end of the first linear drive mechanism corresponding to the other side is in the retracted state. When the rotating component is in the fourth position, the output end of the first linear drive mechanism on one side of the rotating component in the Y direction is in a retracted state, and the output end of the first linear drive mechanism on the other side is in an extended state.

[0010] Furthermore, the rotating component is provided with a second engaging portion that engages with the first engaging portion; In the Z direction, the height of the first latching part is greater than the height of the second latching part, so that when the worktable is in the first position and the second position, both the first latching part and the second latching part are in a latching state.

[0011] Furthermore, the first snap-fit ​​portion is provided with a plurality of first mating surfaces spaced apart along the circumference, and the second snap-fit ​​portion is provided with a plurality of second mating surfaces that correspond to and mate with the first mating surfaces, so as to achieve circumferential limiting and torque transmission through the mating of the first mating surfaces and the second mating surfaces.

[0012] Furthermore, the mounting base includes an upper base and a lower base plate that are detachably connected to each other; A first region for the movement of a rotating component and a second region for the movement of a first connecting component are formed between the upper base and the lower base plate. In the X direction, limiting plates are provided on both sides of the first region to restrict the movement of the rotating parts on both sides; In the first area, a limiting post is provided between adjacent limiting plates; In the X direction, when the rotating parts on both sides abut against the limiting plate, the rotating part in the middle abuts against the limiting post.

[0013] Furthermore, in the Y direction, the mounting base is detachably connected to a protective member on at least one side, and the protective member has a third region for the output end of the first linear drive mechanism and the second connector to move within it; the third region is connected to both the first region and the second region. The rotating component is provided with an extension for rotatably connecting with the first connecting component; In the Y direction, at least one side of the mounting base is provided with a set of limiting blocks, the set of limiting blocks including two limiting blocks respectively provided on both sides of the extension in the X direction.

[0014] Furthermore, the mounting base is provided with several through holes for mounting the workbench; Each of the worktables is fixed with a lower extension arm that extends downward and passes through the through hole, and the first snap-fit ​​part is fixedly disposed at the lower end of the lower extension arm; The mounting base is equipped with a protective plate to protect the sides of the workbench.

[0015] A processing equipment includes the multi-station rotary table and a processing machine tool; The machining tool is equipped with a four-axis bridge plate fixture; The mounting base is connected to the tailstocks at both ends of the four-axis bridge plate fixture to enable the multi-station turntable to be mounted on the four-axis bridge plate fixture. The workbench is equipped with a clamp for clamping workpieces.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The multi-station rotary table provided by this invention has mounting holes at both ends of the mounting base that are compatible with the tailstocks at both ends of the four-axis bridge plate fixture. This allows the mounting base to be installed on the four-axis bridge plate fixture, replacing the original bridge plate of the four-axis bridge plate fixture. Multi-faceted machining of the workpiece can be completed in a single clamping, eliminating the need for secondary clamping or setting up two sets of four-axis bridge plate fixtures. Furthermore, it avoids the high purchase cost of a five-axis machining center, effectively controlling equipment investment and processing costs. Simultaneously, by setting up a first linear drive mechanism, a second connecting member, and a rotating member, multiple worktables are driven to rotate synchronously, achieving synchronous indexing adjustment of multiple products to be processed or inspected. The multi-station rotary table of this invention can directly replace the original bridge plate of the four-axis bridge plate fixture, reducing secondary clamping while retaining the original main structure of the four-axis bridge plate fixture, lowering equipment investment and processing costs. It also meets the needs of simultaneous operation of multiple products and / or continuous operation of multiple processes, improving processing efficiency and equipment utilization.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the invention. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0020] Figure 1 This is a three-dimensional schematic diagram of the multi-station turntable in this invention. Figure 1 ; Figure 2 This is a three-dimensional schematic diagram of the multi-station turntable in this invention. Figure 2 ,in Figure 2 Perspective and Figure 1 Different perspectives; Figure 3 This is an exploded view of the multi-station turntable in this invention; Figure 4 This is a three-dimensional schematic diagram of the rotating component, the first connecting component, the second connecting component, and the first linear drive mechanism in this invention; Figure 5 This is a top view of the rotating component, the first connecting component, the second connecting component, and the first linear drive mechanism in this invention. Figure 1 ,in Figure 5 The central rotating component is in the third position; Figure 6 This is a top view of the rotating component, the first connecting component, the second connecting component, and the first linear drive mechanism in this invention. Figure 2 ,in Figure 6 The central rotating component is in the fourth position; Figure 7 This is an exploded view of the worktable and rotating components in this invention; Figure 8 This is a three-dimensional schematic diagram of the workbench in this invention; Figure 9 This is a three-dimensional schematic diagram of the upper base in this invention. Figure 1 ; Figure 10 This is a top view of the multi-station turntable in this invention; Figure 11 For the present invention Figure 10 Sectional view AA, in which Figure 11 The middle workbench is in the first position; Figure 12 For the present invention Figure 10 Sectional view AA, in which Figure 12 The middle workbench is in the second position; Figure 13 This is an exploded view of the first positioning element and the second positioning element in this invention; Figure 14 This is a three-dimensional schematic diagram of the upper base in this invention. Figure 2 ,in Figure 14 Perspective and Figure 9 Different perspectives; Figure 15 This is a three-dimensional schematic diagram of the protective component in this invention; Figure 16 This is a three-dimensional schematic diagram of a four-axis bridge plate fixture.

[0021] Illustrations: 1. Mounting base; 11. Upper base; 12. Lower base plate; 13. Mounting hole; 14. First area; 15. Second area; 16. Through hole; 17. Protective plate; 2. Worktable; 21. Lower extension arm; 22. First locking part; 221. First mating surface; 3. Rotating component; 31. Second snap-fit ​​part; 311. Second mating surface; 32. Extension part; 41. First connector; 411. Main connector; 412. Cantilever arm; 42. Second connector; 51. First linear drive mechanism; 52. Second linear drive mechanism; 61. Protective component; 611. Third zone; 62. Limiting plate; 63. Limiting post; 64. Limiting block; 71. First positioning component; 72. Second positioning component; 81. Tail seat; 82. Bridge plate. Detailed Implementation

[0022] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0023] In the description of this invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component positioned centrally in the connection.

[0024] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] Example 1: This embodiment provides a multi-station rotary table that can be mounted on a four-axis bridge plate 82 fixture, enabling synchronous indexing adjustment of multiple worktables 2. Combined with... Figure 16As shown, the four-axis bridge plate 82 fixture includes a tailstock 81, a bridge plate 82, and a base. The base is used to fix the four-axis bridge plate 82 fixture as a whole to the two surfaces of the machine tool worktable, providing stable support for the overall structure. The tailstock 81 is located at both ends of the base, and a rotary power source for driving the tailstock 81 to rotate horizontally is provided inside the base, directly opposite one of the two tailstocks 81. The two ends of the bridge plate are fixedly connected to the two tailstocks 81 respectively. A clamp can be installed on the bridge plate to clamp and position the workpiece to be processed, and rotate synchronously with the bridge plate 82 under the drive of the rotary power source. One or both of the base and the two surfaces of the machine tool worktable can achieve XYZ three linear directions adjustable. It should be noted that the specific structure and working principle of the four-axis bridge plate 82 fixture are well known to those skilled in the art. The specific connection methods of its components, the rotary power source, and other conventional technical details are not elaborated here. Only the structural fit relationship related to this embodiment is emphasized, that is, the tailstock 81 and the bridge plate 82 are emphasized. Figures 1-3 As shown, the multi-station rotary table includes a mounting base 1, on which multiple worktables 2 are movably mounted. Clamps can be installed on the worktables 2 to support products to be processed or inspected. The multiple worktables 2 allow for continuous multi-process operations and / or simultaneous multi-product operations. In a specific embodiment, three worktables 2 are provided. Figures 4-7As shown, each of the worktables 2 is provided with a first latching part 22 on its lower side. Each first latching part 22 is latched with a rotating member 3, so that the worktable 2 and the rotating member 3 form a transmission connection relationship. When the rotating member 3 rotates, it can drive the corresponding worktable 2 to rotate synchronously, thereby realizing the indexing adjustment of multiple worktables 2. Multiple rotating parts 3 are connected by a first connecting member 41 that is rotatably connected to each rotating part 3; that is, multiple rotating parts 3 are connected by a first connecting member 41, and the first connecting member 41 is rotatably connected to each rotating part 3; a second connecting member 42 is rotatably connected to the first connecting member 41, and the second connecting member 42 is rotatably connected to the output end of the first linear drive mechanism 51; so that the first connecting member 41 is connected to the output end of the first linear drive mechanism 51 through the second connecting member 42, wherein both ends of the second connecting member 42 are rotatably connected to the first connecting member 41 and the output end of the first linear drive mechanism 51; the first linear drive mechanism 51 is mounted on the mounting base 1 to drive multiple rotating parts 3 to rotate synchronously, thereby driving multiple worktables 2 to rotate synchronously. The mounting base 1 has several mounting holes 13 at both ends for fitting and mounting to the tailstocks 81 at both ends of the four-axis bridge plate 82 fixture, thereby enabling rapid assembly of the multi-station turntable and the four-axis bridge plate 82 fixture. Furthermore, the multi-station turntable in this embodiment can directly replace the bridge plate 82 on the four-axis bridge plate 82 fixture for installation, achieving synchronous indexing and rotation of multiple worktables 2 while retaining the original main structure of the four-axis bridge plate 82 fixture. This embodiment, through the synchronous rotation of multiple worktables 2, can complete multi-directional machining requirements for multiple workpieces or multiple machining areas in a single clamping operation, reducing repetitive clamping operations, lowering positioning errors, and avoiding the equipment investment costs associated with adding multiple sets of four-axis bridge plate 82 fixtures or using a five-axis machining center, thus improving processing efficiency and controlling production costs.

[0026] In specific implementation, the mounting base 1 is connected to the tailstocks 81 at both ends of the four-axis bridge plate 82 fixture through the mounting holes 13, so that the mounting base 1 is fixedly installed on the four-axis bridge plate 82 fixture, replacing the original bridge plate 82 of the four-axis bridge plate 82 fixture, thus completing the overall assembly of the multi-station turntable. When the worktable 2 needs to be indexed during operation, the first linear drive mechanism 51 is activated. The output end of the first linear drive mechanism 51 drives the first connecting member 41 to move through the second connecting member 42. When the first connecting member 41 moves, it can synchronously drive multiple rotating members 3 to rotate. At this time, when multiple rotating members 3 rotate, they can drive the corresponding worktable 2 to rotate synchronously, so that multiple worktables 2 can synchronously complete the angle adjustment and indexing switch. In the above process, the products to be processed or inspected installed on multiple worktables 2 will rotate synchronously with the corresponding worktables 2, thereby realizing the synchronous indexing adjustment of multiple products to be processed or inspected.

[0027] The multi-station rotary table described in this embodiment is suitable for machining scenarios where multiple products are operated simultaneously and / or multiple processes are operated continuously and indexing adjustments are required. Compared to the traditional four-axis bridge plate 82 fixture, which can only achieve rotational indexing in a single horizontal direction, the four-axis bridge plate 82 fixture is limited by its own structure, and can only complete the machining of a part of the workpiece's side in one clamping operation. It cannot adapt to the complex machining requirements of multiple sides. For workpieces that need to be machined on multiple sides, the workpiece must be clamped twice, or two four-axis bridge plate 82 fixtures must be set to complete the machining process. This not only increases the clamping time, but also easily causes positioning errors due to multiple clamping, affecting the machining accuracy of the workpiece. If a five-axis machining center is used to meet the complex machining requirements of multiple sides of the workpiece, although the five-axis machining center can adapt to complex machining scenarios and meet the machining accuracy requirements, the purchase cost of the five-axis machining center is high, which significantly increases the equipment investment cost of enterprises. In this embodiment, simply replacing the bridge plate 82 in the four-axis bridge plate 82 fixture with a multi-station turntable is sufficient to achieve multi-directional indexing rotation of the workpiece through the structure of the multi-station turntable. Multi-faceted machining of the workpiece can be completed in a single clamping, eliminating the need for secondary clamping or setting up two sets of four-axis bridge plate 82 fixtures, and avoiding the high purchase cost of a five-axis machining center, effectively controlling equipment investment and processing costs. Furthermore, this embodiment can simultaneously clamp multiple products to be processed or inspected, and drive multiple worktables 2 to rotate synchronously through the first linear drive mechanism 51, thereby achieving synchronous angle switching and synchronous operation of multiple products to be processed or inspected, improving equipment utilization and processing efficiency.

[0028] In this embodiment, by setting up a first linear drive mechanism 51, a second connecting member 42, and rotating members 3, the linear output of the first linear drive mechanism 51 can be converted into the rotational motion of the worktable 2. The first connecting member 41 then links multiple rotating members 3 to achieve synchronous rotation of multiple worktables 2. This structure has the advantages of a clear transmission path, a small number of drive sources, good linkage, and smooth operation. Furthermore, the range of motion of the first connecting member 41 and the second connecting member 42 is relatively concentrated, eliminating the need for large-scale movements. The overall mechanism occupies less space during operation, which helps reduce equipment installation space requirements, improves structural compactness, and facilitates integration with existing four-axis bridge plate 82 fixtures.

[0029] Combination Figures 4-8 As shown, the first connecting member 41 includes a main connecting part 411 and a cantilever arm 412 that are fixed to each other; the main connecting part 411 is rotatably connected to a plurality of rotating parts 3, and the rotation connection points of the plurality of rotating parts 3 and the main connecting part 411 are collinear, and the line on which they are located is parallel to the extension and retraction direction of the output end of the first linear drive mechanism 51; the cantilever arm 412 is rotatably connected to the second connecting member 42.

[0030] In specific implementation, the main connecting part 411 is rotatably connected to multiple rotating parts 3, and the rotation connection points of multiple rotating parts 3 and the main connecting part 411 are collinear. This makes the interaction between the main connecting part 411 and the multiple rotating parts 3 more consistent during movement, facilitating the more uniform transmission of the driving force output by the first linear drive mechanism 51 to the multiple rotating parts 3, and improving the synchronization of the multiple rotating parts 3 in the linkage process. At the same time, the straight line where the rotation connection points of multiple rotating parts 3 and the main connecting part 411 are located is parallel to the extension and retraction direction of the output end of the first linear drive mechanism 51. This allows the linear driving force of the first linear drive mechanism 51 to be transmitted along the arrangement direction of the multiple rotating parts 3, reducing the additional lateral force and off-center load generated during transmission, reducing the possibility of the main connecting part 411 swaying and the multiple rotating parts 3 experiencing uneven force. Thus, based on the use of the first linear drive mechanism 51 to link multiple rotating parts 3, the transmission smoothness, structural compactness, and accuracy of synchronous indexing adjustment of multiple worktables 2 are all taken into account.

[0031] Multiple rotating components 3 are arranged in an array along the X direction; similarly, multiple worktables 2 are arranged in an array along the X direction, with each worktable 2 and rotating component 3 corresponding to the other. In a specific embodiment, the extension / retraction direction of the output end of the first linear drive mechanism 51 is parallel to the X direction. In the Y direction, each side of the rotating component 3 is provided with a first connecting member 41, a second connecting member 42, and a first linear drive mechanism 51 to make the force on both sides of the rotating component 3 more balanced, reduce off-center load, and improve rotational stability. In a specific embodiment, the first linear drive mechanisms 51 on both sides of the rotating component 3 respectively drive the corresponding second connecting member 42 and first connecting member 41 to move, thereby driving the rotating component 3 to move synchronously on both sides, making the force on the rotating component 3 more balanced, reducing off-center load, and improving rotational stability. The Y direction is perpendicular to the X direction. The rotating component 3 has a third position and a fourth position, with a preset rotation angle between the third position and the fourth position. It should be noted that the preset rotation angle here is the rotation angle of the rotating component 3. In a specific embodiment, the third position and the fourth position are spaced 90° apart by a rotation angle. Figure 5 As shown, when the rotating member 3 is in the third position, the output end of the first linear drive mechanism 51 corresponding to one side of the rotating member 3 in the Y direction is in an extended state, and the output end of the first linear drive mechanism 51 corresponding to the other side is in a retracted state; combined with Figure 6 As shown, when the rotating member 3 is in the fourth position, the output end of the first linear drive mechanism 51 corresponding to one side of the rotating member 3 in the Y direction is in a retracted state, and the output end of the first linear drive mechanism 51 corresponding to the other side is in an extended state.

[0032] In practical implementation, when multiple worktables 2 need to be driven to rotate synchronously, the first linear drive mechanisms 51 located on both sides of the rotating component 3 operate simultaneously. The output ends of the two first linear drive mechanisms 51 respectively drive the corresponding second connecting members 42 to move. The second connecting members 42 then drive the corresponding first connecting members 41 to move. The first connecting members 41 on both sides can synchronously drive multiple rotating components 3 to rotate. During this process, both sides of multiple rotating components 3 are simultaneously subjected to driving force, causing both sides of multiple rotating components 3 to move synchronously, thereby driving the multiple worktables 2 connected to the multiple rotating components 3 to rotate synchronously. By setting the first connecting members 41, the second connecting members 42 and the first linear drive mechanism 51 on both sides of the rotating component 3, the driving force can be transmitted from both sides of the rotating component 3 to multiple rotating components 3, avoiding the driving force from being concentrated on one side of the rotating component 3 and causing uneven load. This is beneficial to improving the force balance and running stability of multiple rotating components 3 and multiple worktables 2 during rotation, and at the same time improving the stability of synchronous indexing adjustment of multiple worktables 2.

[0033] Furthermore, since the output end of the first linear drive mechanism 51 has a large extension length when it is in the extended state, the output end is in a cantilevered state and subjected to force. Moreover, the force transmitted from the second connector 42 to the output end of the first linear drive mechanism 51 is not always parallel to the extension direction of the output end of the first linear drive mechanism 51. Therefore, the output end of the first linear drive mechanism 51 is more likely to bear lateral force and additional bending moment when it is in the extended state, resulting in relatively poor end control stability. In this embodiment, when the rotating member 3 is in the third or fourth position, the output ends of the first linear drive mechanisms 51 on both sides in the Y direction are in different states, one of which is in the extended state and the other is in the retracted state. This can avoid the output ends of the two first linear drive mechanisms 51 being in a long extended state at the same time, thereby helping to reduce the influence of lateral force and additional bending moment on the output end of the first linear drive mechanism 51, improving the stability of the double-sided transmission and the smoothness of the rotating member 3 during rotation. During operation, the first linear drive mechanism 51 on both sides drives the rotating component 3 to switch between the third and fourth positions; and during the switching process of the rotating component 3 between the third and fourth positions, the output ends of the first linear drive mechanism 51 on both sides alternately extend and retract, and the overall transmission is smooth.

[0034] The mounting base 1 includes an upper base 11 and a lower base plate 12 that are detachably connected to each other; in a specific embodiment, the mounting hole 13 is provided on the upper base 11. Figures 4-6 , Figure 14As shown, a first region 14 for the movement of the rotating member 3 and a second region 15 for the movement of the first connecting member 41 are formed between the upper base 11 and the lower base plate 12. This allows the rotating member 3 and the first connecting member 41 to each have corresponding movement areas, facilitating the partitioned arrangement of the rotating member 3 and the first connecting member 41, avoiding spatial interference between them during movement, and improving the compactness of the overall structural arrangement and the stability of the movement process. In the X direction, limiting plates 62 are provided on both sides of the first region 14 to restrict the movement of the rotating members 3 on both sides, thereby limiting the rotation range of the rotating members 3 on both sides and preventing them from exceeding the preset position during movement, thus improving the stability of the rotating members 3 on both sides during movement. In the first region 14, a limiting post 63 is provided between adjacent limiting plates 62; in the X direction, when the rotating parts 3 located on both sides abut against the limiting plates 62, the rotating parts 3 located in the middle abut against the limiting post 63, so that the rotating parts 3 located in the middle and the rotating parts 3 located on both sides complete the limiting at the corresponding positions, thereby forming a cooperative limiting for multiple rotating parts 3, ensuring that the range of motion of multiple rotating parts 3 is consistent, which is beneficial to improving the positional consistency when multiple rotating parts 3 rotate synchronously and the accuracy of synchronous indexing adjustment of multiple worktables 2.

[0035] In the Y direction, the mounting base 1 is detachably connected to a protective member 61 on at least one side, combined with Figure 15As shown, the protective component 61 has a third region 611 for the output end of the first linear drive mechanism 51 and the second connector 42 to move within it. The third region 611 is connected to both the first region 14 and the second region 15 to shield and protect the output end of the first linear drive mechanism 51 and the second connector 42. This also prevents external dust, debris, and impurities generated during processing from entering the first region 14 and the second region 15, which would affect the normal movement and transmission stability of the rotating component 3, the first connector 41, the second connector 42, and the output end of the first linear drive mechanism 51. The rotating member 3 is provided with an extension 32 for rotatably connecting with the first connecting member 41, so that the rotatable connection position between the first connecting member 41 and the rotating member 3 is relatively extended outward, thereby facilitating the first connecting member 41 to apply force to the rotating member 3. In the Y direction, at least one side of the mounting base 1 is provided with a set of limiting blocks 64. The set of limiting blocks 64 includes two limiting blocks 64 respectively provided on both sides of the extension 32 in the X direction, so as to limit the range of motion of the extension 32 in the X direction. When the extension 32 rotates to a preset position, the extension 32 can abut against the corresponding limiting block 64, thereby limiting the rotating member 3 from continuing to rotate, avoiding excessive rotation of the rotating member 3, and improving the stability of the rotating member 3 during its movement. In a specific embodiment, the mounting base 1 is provided with a protective member 61 and a set of limiting blocks 64 on both sides in the Y direction, so as to protect and limit the output end of the first linear drive mechanism 51, the second connecting member 42, and the extension 32 on both sides in the Y direction.

[0036] In practical implementation, the protective component 61 shields and protects the output end of the first linear drive mechanism 51 and the second connecting component 42, reducing the impact of external dust, debris, and impurities generated during processing on the movement of the rotating component 3, the first connecting component 41, the second connecting component 42, and the output end of the first linear drive mechanism 51. The third region 611 communicates with the first region 14 and the second region 15, providing space for the output end of the first linear drive mechanism 51, the second connecting component 42, the first connecting component 41, and the rotating component 3, thus preventing interference between these components. When the extension 32 rotates to the preset position, the extension 32 can abut against the corresponding limiting block 64 to limit the range of movement of the extension 32 in the X direction and limit the rotation of the rotating member 3. At the same time, the rotating members 3 located on both sides can abut against the corresponding limiting plate 62, and the rotating member 3 located in the middle can abut against the limiting post 63. Thus, through the cooperation of the limiting block 64, the limiting plate 62 and the limiting post 63, the range of movement of multiple rotating members 3 is jointly limited, avoiding excessive rotation of multiple rotating members 3, improving the stability of multiple rotating members 3 during the movement process, and helping to ensure the consistency of synchronous indexing adjustment of multiple worktables 2.

[0037] It should be noted that in the specific embodiment, the X direction, Y direction and Z direction are mutually perpendicular; wherein, the Z direction is the up and down direction when the multi-station turntable is actually working in this embodiment, and the X direction is the array direction of multiple worktables 2.

[0038] Combination Figures 8-13 As shown, the worktable 2 has several first positioning elements 71 evenly distributed along the circumferential direction of the rotation center of the worktable 2 on the side facing the mounting base 1. The mounting base 1 has several second positioning elements 72 corresponding to and cooperating with the first positioning elements 71 on the side facing the worktable 2. In specific implementation, the first positioning elements 71 and the corresponding second positioning elements 72 achieve positioning by mutual interlocking, so as to position the worktable 2 after it rotates to the preset work position, reduce the possibility of positional deviation of the worktable 2, and thus improve the accuracy and stability of the indexing positioning of the worktable 2. It also includes a second linear drive mechanism 52; in a specific embodiment, the number of second linear drive mechanisms 52 is the same as the number of worktables 2 and they are arranged in a one-to-one correspondence; in a specific embodiment, the second linear drive mechanism 52 is mounted on the mounting base 1. The lower end of each worktable 2 is connected to the output end of a corresponding second linear drive mechanism 52, so that the worktable 2 has a first position and a second position; combined with Figure 11 As shown, when the worktable 2 is in the first position, the first positioning member 71 and the corresponding second positioning member 72 are engaged with each other; combined Figure 12 As shown, when the worktable 2 is in the second position, the first positioning element 71 and the corresponding second positioning element 72 disengage from each other. In a specific embodiment, four first positioning elements 71 are evenly distributed on the same worktable 2, so that the included angle between two adjacent first positioning elements 71 is 90°. This allows the worktable 2 to be positioned by engaging different first positioning elements 71 with the corresponding second positioning elements 72 after each indexing rotation, thus achieving indexing positioning of the worktable 2 at 90° intervals.

[0039] In practice, the worktable 2 is initially located in the first position, where the first positioning element 71 and the corresponding second positioning element 72 are engaged to position the worktable 2. When indexing adjustment of the worktable 2 is required, the corresponding second linear drive mechanism 52 is activated, driving the worktable 2 from the first position to the second position via its output end. This disengages the first positioning element 71 from the corresponding second positioning element 72, thus releasing the positioning constraint on the worktable 2. When the worktable 2 is in the second position, the first linear drive mechanism 51 is activated, rotating the worktable 2 to a specified angle. After the worktable 2 has rotated to the specified angle, the corresponding second linear drive mechanism 52 is activated again, moving the worktable 2 from the second position to the first position. This re-engages the first positioning element 71 and the second positioning element 72 at the corresponding positions, thus repositioning the worktable 2. By first releasing the positioning, then rotating, and finally repositioning, the accuracy and stability of the indexing positioning after the worktable 2 rotates are improved, and the positional deviation of the worktable 2 during processing or inspection is reduced, ensuring that the worktable 2 can smoothly complete the angle switching.

[0040] The rotating component 3 is provided with a second engaging part 31 that engages with the first engaging part 22. In the Z direction, the height of the first engaging part 22 is greater than the height of the second engaging part 31, so that when the worktable 2 is in the first position and the second position, both the first engaging part 22 and the second engaging part 31 are engaged. This ensures that the first engaging part 22 and the second engaging part 31 maintain a transmission connection during the movement of the worktable 2 between the first position and the second position, preventing the worktable 2 from disengaging from the rotating component 3 when switching between the first and second positions. This ensures the continuity of transmission and connection stability of the rotating component 3 to the worktable 2, and also helps to improve the smoothness of the worktable 2 during position switching.

[0041] The first engaging portion 22 has multiple first mating surfaces 221 spaced apart circumferentially, and the second engaging portion 31 has multiple second mating surfaces 311 that correspond to and mate with the first mating surfaces 221. The mating of the first mating surfaces 221 and the second mating surfaces 311 achieves circumferential limiting and torque transmission, so that when the rotating part 3 rotates, the torque can be stably transmitted to the worktable 2 through the mating of the multiple first mating surfaces 221 and the multiple second mating surfaces 311. At the same time, the relative circumferential position between the worktable 2 and the rotating part 3 is limited, which helps to improve the transmission stability and indexing accuracy during the rotation of the worktable 2. In a specific embodiment, the first engaging portion 22 and the second engaging portion 31 are both in the shape of a four-pointed star, so that circumferential limiting and torque transmission are maintained when the first engaging portion 22 and the second engaging portion 31 move relative to each other in the Z direction, thereby improving the reliability and stability of the transmission between the worktable 2 and the rotating part 3.

[0042] The mounting base 1 is provided with a plurality of through holes 16 for mounting workbenches 2. Each workbench 2 is fixed with a lower extension arm 21 extending downward and passing through the through holes 16. The first snap-fit ​​part 22 is fixedly provided at the lower end of the lower extension arm 21, so that the workbench 2 can be connected to the first snap-fit ​​part 22 located below the mounting base 1 through the lower extension arm 21. The mounting base 1 is provided with a protective plate 17 for protecting the sides of the workbench 2. By providing the protective plate 17 to protect the sides of the workbench 2, the possibility of debris and impurities generated during processing entering the relevant structural areas from the sides of the workbench 2 is reduced, thereby improving the protective effect of the workbench 2 during use and the stability of the overall structure operation.

[0043] In this embodiment, the mounting base 1 of the multi-station rotary table is provided with mounting holes 13 at both ends that are adapted to the tailstocks 81 at both ends of the four-axis bridge plate 82 fixture. This allows the mounting base 1 to be installed on the four-axis bridge plate 82 fixture, replacing the original bridge plate 82 of the four-axis bridge plate 82 fixture. Multi-face machining of the workpiece can be completed in one clamping, without the need for secondary clamping or setting up two sets of four-axis bridge plate 82 fixtures. Moreover, it eliminates the need for the high purchase cost of a five-axis machining center, effectively controlling equipment investment and processing costs. At the same time, by setting up the first linear drive mechanism 51, the second connecting member 42, the first connecting member 41 and the rotating member 3, multiple worktables 2 are driven to rotate synchronously, realizing the synchronous indexing adjustment of multiple products to be processed or products to be inspected. In this embodiment, the multi-station turntable can directly replace the original bridge plate 82 of the four-axis bridge plate 82 fixture. This reduces secondary clamping, lowers equipment investment and processing costs, while retaining the original main structure of the four-axis bridge plate 82 fixture. At the same time, it can meet the needs of simultaneous operation of multiple products and / or continuous operation of multiple processes, thereby improving processing efficiency and equipment utilization.

[0044] Example 2: This embodiment provides a processing device for multi-station indexing processing of workpieces. The processing device includes the multi-station rotary table described in Embodiment 1, and also includes a machine tool for processing the workpieces. The machine tool is equipped with a four-axis bridge plate 82 fixture; the mounting base 1 is connected to the tailstocks 81 at both ends of the four-axis bridge plate 82 fixture to mount the multi-station rotary table on the four-axis bridge plate 82 fixture, replacing the original bridge plate 82 of the four-axis bridge plate 82 fixture, thereby facilitating the assembly and use of the multi-station rotary table using the existing four-axis bridge plate 82 fixture; the worktable 2 is equipped with a clamp for clamping workpieces, facilitating workpiece processing.

[0045] It should be noted that the key point of this embodiment is that the processing equipment integrates the multi-station rotary table described in Embodiment 1, and the multi-station rotary table is mounted on the tailstocks 81 at both ends of the four-axis bridge plate 82 fixture via the mounting base 1, so that the multi-station rotary table can be mounted on the machine tool and used in conjunction with the machine tool to realize multi-station indexing processing of the workpiece. As for the specific structure of the four-axis bridge plate 82 fixture itself, the specific structure of the machine tool, and other structures in the machine tool, such as processing tools, they will not be described in detail here, and can all adopt conventional settings in the art, which are known to those skilled in the art.

[0046] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-station rotary table, characterized in that: Includes a mounting base (1), on which multiple workbenches (2) are movably mounted; Each of the worktables (2) is provided with a first snap-fit ​​part (22) on its lower side, and each first snap-fit ​​part (22) is snap-fitted with a rotating part (3); the multiple rotating parts (3) are connected to each other by a first connecting part (41) rotatably connected to each rotating part (3); a second connecting part (42) is rotatably connected to the first connecting part (41), and the second connecting part (42) is rotatably connected to the output end of the first linear drive mechanism (51); the first linear drive mechanism (51) is mounted on the mounting base (1) to drive the multiple rotating parts (3) to rotate synchronously, thereby driving the multiple worktables (2) to rotate synchronously; The mounting base (1) has several mounting holes (13) at both ends for fitting and mounting to the tailstocks (81) at both ends of the four-axis bridge plate (82) fixture.

2. The multi-station rotary table according to claim 1, characterized in that: The first connector (41) includes a main connector (411) and a cantilever arm (412) that are fixed to each other; the main connector (411) is rotatably connected to a plurality of rotating parts (3), and the rotation connection points of the plurality of rotating parts (3) and the main connector (411) are collinear, and the line on which they are located is parallel to the extension and retraction direction of the output end of the first linear drive mechanism (51); the cantilever arm (412) is rotatably connected to the second connector (42).

3. The multi-station rotary table according to claim 1, characterized in that: The workbench (2) is provided with a number of first positioning elements (71) evenly arranged along the circumferential direction of the rotation center of the workbench (2) on the side facing the mounting base (1), and the mounting base (1) is provided with a number of second positioning elements (72) corresponding to and cooperating with the first positioning elements (71) on the side facing the workbench (2). It also includes a second linear drive mechanism (52); Each worktable (2) is connected at its lower end to the output end of a corresponding second linear drive mechanism (52) so that the worktable (2) has a first position and a second position; when the worktable (2) is in the first position, the first positioning member (71) and the corresponding second positioning member (72) are engaged with each other; when the worktable (2) is in the second position, the first positioning member (71) and the corresponding second positioning member (72) are disengaged from each other.

4. The multi-station rotary table according to claim 1, characterized in that: Multiple rotating parts (3) are arranged in an array along the X direction; in the Y direction, each of the rotating parts (3) is provided with a first connecting part (41), a second connecting part (42) and a first linear drive mechanism (51); wherein, the Y direction is perpendicular to the X direction; The rotating component (3) has a third position and a fourth position, with a preset rotation angle between the third position and the fourth position; When the rotating member (3) is in the third position, the output end of the first linear drive mechanism (51) on one side of the rotating member (3) in the Y direction is in the extended state, and the output end of the first linear drive mechanism (51) on the other side is in the retracted state. When the rotating member (3) is in the fourth position, the output end of the first linear drive mechanism (51) on one side of the rotating member (3) in the Y direction is in a retracted state, and the output end of the first linear drive mechanism (51) on the other side is in an extended state.

5. The multi-station rotary table according to claim 3, characterized in that: The rotating part (3) is provided with a second snap-fit ​​part (31) that snaps into the first snap-fit ​​part (22); In the Z direction, the height of the first latching part (22) is greater than the height of the second latching part (31), so that when the worktable (2) is in the first position and the second position, both the first latching part (22) and the second latching part (31) are in a latching state.

6. The multi-station rotary table according to claim 5, characterized in that: The first snap-fit ​​part (22) is provided with a plurality of first mating surfaces (221) spaced apart along the circumference, and the second snap-fit ​​part (31) is provided with a plurality of second mating surfaces (311) that correspond to and mate with the first mating surfaces (221), so that circumferential limiting and torque transmission can be achieved through the mating of the first mating surfaces (221) and the second mating surfaces (311).

7. The multi-station rotary table according to claim 1, characterized in that: The mounting base (1) includes an upper base (11) and a lower base plate (12) that are detachably connected to each other. A first region (14) for the movement of the rotating member (3) and a second region (15) for the movement of the first connecting member (41) are formed between the upper base (11) and the lower base plate (12). In the X direction, limiting plates (62) are provided on both sides of the first region (14) to limit the movement of the rotating parts (3) on both sides; In the first region (14), a limiting post (63) is provided between adjacent limiting plates (62). In the X direction, when the rotating parts (3) located on both sides abut against the limiting plate (62), the rotating part (3) located in the middle abuts against the limiting post (63).

8. The multi-station rotary table according to claim 7, characterized in that: In the Y direction, the mounting base (1) is detachably connected to a protective member (61) on at least one side. The protective member (61) is provided with a third region (611) for the output end of the first linear drive mechanism (51) and the second connector (42) to move. The third region (611) is connected to both the first region (14) and the second region (15). The rotating member (3) is provided with an extension (32) for rotatably connecting with the first connecting member (41). In the Y direction, at least one side of the mounting base (1) is provided with a set of limiting blocks (64), the set of limiting blocks (64) including two limiting blocks (64) respectively provided on both sides of the extension (32) in the X direction.

9. The multi-station rotary table according to claim 1, characterized in that: The mounting base (1) is provided with several through holes (16) for mounting the workbench (2). Each of the workbenches (2) is fixed with a lower extension arm (21) that extends downward and passes through the through hole (16), and the first snap-fit ​​part (22) is fixedly provided at the lower end of the lower extension arm (21); The mounting base (1) is provided with a protective plate (17) for protecting the side of the workbench (2).

10. A processing device, characterized in that: The multi-station rotary table as described in any one of claims 1-9 also includes a machine tool; The machining tool is equipped with a four-axis bridge plate (82) fixture; The mounting base (1) is connected to the tailstocks (81) at both ends of the four-axis bridge plate (82) fixture to realize the installation of the multi-station turntable on the four-axis bridge plate (82) fixture; The workbench (2) is equipped with a clamp for clamping workpieces.

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