CN210024457U - Multi-station rotary workbench - Google Patents

Abstract

The utility model relates to an automated production equipment technical field discloses a multistation swivel work head. The utility model provides a multistation swivel work head sets up anti-rotation mechanism slidable on the swivel subassembly, when the working head cooperates external processing equipment to carry out circumference to the work piece to add man-hour, anti-rotation mechanism will with the installation component butt, avoid anti-rotation mechanism to interfere working head work, ensure that the working head can drive the work piece and carry out the rotation; when the workpiece needs to be processed at the last processing station and then needs to be converted, the rotating ring assembly moves upwards to enable the anti-rotating mechanism to be separated from the abutting joint with the mounting assembly and to be converted into the abutting joint with the working head, so that the workpiece enters the next processing station in a stop state of the last processing station, the position of the workpiece is memorized, and the processing precision of the workpiece is improved.

Description

Multi-station rotary workbench

Technical Field

The utility model relates to an automated production equipment technical field especially relates to a multistation swivel work head.

Background

When the micro drill bit is produced, the micro drill bit generally comprises the processing procedures of feeding and discharging, slotting, sharpening, back grinding and the like. In order to improve the processing efficiency, the cooperation of a multi-station rotary workbench is usually needed, a plurality of working heads are arranged on the multi-station rotary workbench, the micro drill bit is clamped by the working heads and is driven to rotate in the processing process, the micro drill bit is circumferentially ground by matching with an external processing tool, and the like. The micro drill has very high requirement on the machining precision, so that the micro drill needs to keep the stop state of the previous machining station in the process of transferring from the previous machining station to the next machining station, namely the working head needs to have a position memory function in the process of transferring the machining stations, cannot drive the micro drill to rotate, and ensures that the micro drill keeps the stop state of the previous machining station and enters the next machining station.

However, the conventional multi-station rotary table generally cannot ensure that the micro drill enters the next processing station according to the stop state of the previous processing station, thereby causing the reduction of the processing precision of the micro drill.

Therefore, a new multi-station rotary table is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Based on above, an object of the utility model is to provide a multistation swivel work head, compare with prior art, it can remember the position of work piece, ensures that the work piece can keep the stop state of last processing station and get into to next processing station, has improved the machining precision of work piece.

In order to achieve the purpose, the utility model adopts the following technical proposal:

a multi-station rotary table comprising:

mounting the component;

the rotating ring assembly is rotatably erected on the mounting assembly and can move up and down relative to the mounting assembly;

the working heads are rotatably arranged on the rotating ring assembly and are configured to clamp a workpiece;

and the anti-rotation mechanism is slidably arranged on the rotating ring assembly and is selectively abutted with the mounting assembly or the working head.

Further, the anti-rotation mechanism comprises a bayonet lock, the bayonet lock is slidably arranged on the rotating ring assembly, a fin plate is arranged on the mounting assembly, and the bayonet lock can be selectively abutted with the working head or the fin plate.

Furthermore, the anti-rotation mechanism further comprises an elastic piece, one end of the elastic piece is abutted with the rotating ring assembly, and the other end of the elastic piece is abutted with the clamping pin.

Furthermore, a baffle is arranged on the rotating ring assembly, and one end of the elastic piece is abutted against the baffle.

Further, be provided with on the bayonet lock and hold the chamber, the elastic component set up in hold the chamber and one end with hold the bottom butt in chamber.

Further, a flange is arranged on the clamping pin and can be abutted to the fin plate.

The working head driving mechanism is mounted on the mounting assembly and configured to drive the working head to rotate so as to drive the workpiece to rotate.

Further, the working head driving mechanism comprises a first bevel gear, a second bevel gear and a working head driver, the first bevel gear is connected with the working head and can be meshed with the second bevel gear, and the second bevel gear is connected with the output end of the working head driver.

Further, an end of the click pin may abut against the first bevel gear.

Further, the end part of the bayonet lock is provided with a conical head, and the conical head can be inserted into a tooth groove of the first bevel gear and is abutted against a groove surface of the tooth groove.

The utility model has the advantages that:

the utility model provides a multistation swivel work head sets up anti-rotating mechanism slidable on the swivel subassembly, when the working head cooperates external processing equipment to carry out circumferential machining to the work piece, anti-rotating mechanism will with the installation component butt to make anti-rotating mechanism can not with working head looks butt, avoid anti-rotating mechanism to interfere working head work, ensure that the working head can drive the work piece and carry out the rotation; when a workpiece needs to be converted between processing stations after being processed at the previous processing station, the rotating ring assembly moves upwards relative to the mounting assembly, meanwhile, the anti-rotating mechanism is separated from the support of the mounting assembly and is converted into support of the working head, and then the rotating ring assembly drives the working head to rotate relative to the mounting assembly, so that the workpiece enters the next processing station in a stop state of the previous processing station; when the workpiece enters the next processing station, the rotating ring component moves downwards relative to the mounting component, and meanwhile, the anti-rotating mechanism is separated from being abutted to the working head and is abutted to the mounting component again, so that the working head can drive the workpiece to rotate again. The utility model provides a multistation swivel work head can remember the position of work piece, ensures that the work piece can keep the stop state of last processing station and get into to next processing station, has improved the machining precision of work piece.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

Fig. 1 is a schematic structural view of a multi-station rotary table according to an embodiment of the present invention;

fig. 2 is a schematic partial structure view of a multi-station rotary table provided in an embodiment of the present invention at a first angle;

fig. 3 is a schematic partial structure diagram of a multi-station rotary table according to an embodiment of the present invention at a second angle;

FIG. 4 is an enlarged view at A in FIG. 2;

fig. 5 is a schematic view of a position relationship between an anti-rotation mechanism and a baffle in the multi-station rotary table according to the embodiment of the present invention;

fig. 6 is a structural schematic diagram of a bayonet lock in a multi-station rotary workbench according to an embodiment of the present invention;

fig. 7 is a partial cross-sectional view of a multi-station rotary table according to an embodiment of the present invention at a first angle;

fig. 8 is a partial cross-sectional view of a multi-station rotary table according to an embodiment of the present invention at a second angle;

fig. 9 is a partial cross-sectional view of a multi-station rotary table according to an embodiment of the present invention at a third angle.

In the figure:

100-a workpiece;

1-mounting the assembly; 11-a fin plate; 12-mounting holes; 13-a first mounting table; 131-a first lower intake passage; 14-a second mounting table; 141-upper inlet channel; 142-a second lower intake passage; 15-a connecting frame; 16-a mounting plate;

2-a swivel assembly; 21-a baffle plate; 22-swivel; 221-a fifth shielding gas channel; 23-a swivel frame; 231-a fourth shielding gas channel; 24-a protective cover;

3-working head;

4-anti-rotation mechanism; 41-bayonet lock; 411-an accommodation chamber; 412-a flange; 413-a cone head; 42-an elastic member;

5-a working head driving mechanism; 51-a first bevel gear; 52-second bevel gear; 53-working head driver;

6-a fluted disc assembly; 61-an upper fluted disc; 62-a lower fluted disc; 63-protective plate;

7-a lifting assembly; 71-a rotating shaft; 711-second shielding gas channel; 712-a third shielding gas channel; 72-a lift drive; 721-a piston; 73-a first lifting air inlet joint; 74-a second lift inlet joint; 75-shaft sleeve; 751-a first shielding gas channel;

8-a turntable driving mechanism; 81-a first gear; 82-a second gear; 83-a turntable drive;

9-gas protection mechanism; 91-a first protective intake joint; 92-a first protective gas outlet joint; 93-second protective gas outlet joint.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only or to distinguish between different structures or components and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-2, the embodiment provides a multi-station rotary table, and specifically, the multi-station rotary table includes a mounting assembly 1, a swivel assembly 2, a working head 3, and an anti-rotation mechanism 4, where the working head 3 is configured to clamp a workpiece 100, and drive the workpiece 100 to rotate during a machining process of the workpiece 100 so as to cooperate with an external machining device to perform circumferential machining on the workpiece 100. The swivel assembly 2 can drive the working head 3 to switch among a plurality of processing stations, so that the workpiece 100 rotates from the previous processing station to the next processing station to perform the subsequent processing procedure. The rotation preventing mechanism 4 can prevent the working head 3 from rotating in the process of converting the processing stations, so that the workpiece 100 enters the next processing station while keeping the stop state of the previous processing station.

Further, the swivel assembly 2 is rotatably mounted on the mounting assembly 1 and can move up and down relative to the mounting assembly 1. A plurality of working heads 3 are rotatably disposed on the swivel assembly 2, the working heads 3 being configured to clamp a workpiece 100. An anti-rotation mechanism 4 is slidably disposed on the swivel assembly 2 and selectively abuts the mounting assembly 1 or the working head 3.

According to the multi-station rotary workbench provided by the embodiment, the anti-rotation mechanism 4 is slidably arranged on the swivel assembly 2, when the working head 3 is matched with external processing equipment to circumferentially process the workpiece 100, the anti-rotation mechanism 4 is abutted against the mounting assembly 1, so that the anti-rotation mechanism 4 cannot be abutted against the working head 3, the anti-rotation mechanism 4 is prevented from interfering the working head 3 to work, and the working head 3 is ensured to be capable of driving the workpiece 100 to rotate; when the workpiece 100 needs to be converted into a processing station after being processed at the previous processing station, the rotating ring assembly 2 moves upwards relative to the mounting assembly 1, meanwhile, the anti-rotating mechanism 4 is separated from the support of the mounting assembly 1 and is converted into support of the working head 3, then the rotating ring assembly 2 drives the working head 3 to rotate relative to the mounting assembly 1, and therefore the workpiece 100 enters the next processing station in a stopping state of the previous processing station; when the workpiece 100 enters the next processing station, the rotating ring assembly 2 moves downward relative to the mounting assembly 1, and meanwhile, the anti-rotation mechanism 4 is separated from being abutted to the working head 3 and is abutted to the mounting assembly 1 again, so that the working head 3 can drive the workpiece 100 to rotate again. The multi-station rotary worktable provided by the embodiment can memorize the position of the workpiece 100, ensure that the workpiece 100 can keep the stop state of the previous processing station and enter the next processing station, and improve the processing precision of the workpiece 100.

Optionally, a plurality of working heads 3 are evenly distributed along the circumference of the swivel assembly 2. According to the arrangement, the multi-working head 3 can be matched with external processing equipment at the corresponding position at the same time, so that the processing efficiency is improved. Since the workpiece 100 in this embodiment is a micro drill, and there are four machining processes (including loading and unloading, grooving, sharpening, and back grinding processes) that the micro drill needs to complete on the multi-station rotary table, in this embodiment, the four working heads 3 are uniformly distributed along the circumferential direction of the swivel assembly 2. The four working heads 3 are used for four processing stations, wherein the four processing stations are respectively a loading and unloading, slotting, sharpening and back grinding processing station. Of course, in other embodiments, the number of the working heads 3 may be adjusted according to the number of the processing steps of the workpiece 100, and the like, and is not limited herein. Of course, the multi-station rotary table provided in this embodiment is not limited to be applied in the field of micro drill machining, but may also be applied in the field of multi-station machining tools, and the like, and is not limited herein.

Alternatively, as shown in fig. 1 and 2, the mounting assembly 1 includes a first mounting table 13 and a second mounting table 14, the first mounting table 13 being disposed above the second mounting table 14. Optionally, the first and second mounting tables 13, 14 are arranged coaxially with the swivel assembly 2. Optionally, as shown in fig. 1, the mounting assembly 1 further includes a connecting frame 15 and a mounting plate 16, wherein one end of the connecting frame 15 is connected to the second mounting stage 14, and the other end is connected to the mounting plate 16. Alternatively, as shown in fig. 3, the swivel assembly 2 comprises a swivel 22 and a swivel frame 23, the top of the swivel 22 being connected to the swivel frame 23. Alternatively, the working head 3 is provided on the swivel 22, and the rotation preventing mechanism 4 is provided on the swivel frame 23. Optionally, the first mounting station 13 is located within the swivel 22 and the second mounting station 14 is partially located within the swivel 22. Optionally, as shown in fig. 1, the swivel assembly 2 further comprises a protective cover 24, the protective cover 24 being covered on the swivel frame 23. The protective cover 24 can prevent foreign matter such as dust and machining debris from entering the inner peripheral region of the swivel 22, thereby protecting the structure located in the inner peripheral region of the swivel 22.

Optionally, as shown in fig. 1, the multi-station rotary table provided in this embodiment further includes a gas protection mechanism 9, and the gas protection mechanism 9 is communicated with the inside of the working head 3. Because the external processing equipment needs to be cooled by oil in the process of processing the workpiece 100, in order to prevent oil contamination from entering the inside of the working head 3, the gas protection mechanism 9 is arranged to play a role in gas pressure protection, and high-pressure air is introduced into the inside of the working head 3 to ensure that the gas pressure inside the working head 3 is greater than that outside the working head, so that the oil contamination is prevented from entering the inside of the working head 3, and the service life of the working head 3 is prolonged.

Optionally, as shown in fig. 2, the multi-station rotary table provided in this embodiment further includes a working head driving mechanism 5, where the working head driving mechanism 5 is mounted on the mounting assembly 1 and configured to drive the working head 3 to rotate so as to drive the workpiece 100 to rotate. Namely, the working head driving mechanism 5 is used to drive the working head 3 to rotate so as to drive the workpiece 100 to rotate.

Optionally, the working head driving mechanism 5 comprises a first bevel gear 51, a second bevel gear 52 and a working head driver 53, the first bevel gear 51 is connected with the working head 3 and can be meshed with the second bevel gear 52, and the second bevel gear 52 is connected with the output end of the working head driver 53. The power transmission direction can be changed by matching the first bevel gear 51 and the second bevel gear 52, so that the installation position of the working head driver 53 can be conveniently adjusted, and the structure of the whole multi-station rotary workbench is more compact. Optionally, in the present embodiment, the work head driver 53 is a motor. Optionally, a work head drive 53 is mounted to the bottom of the second mounting stage 14.

Optionally, as shown in fig. 3, the multi-station rotating table provided in this embodiment further includes a gear plate assembly 6, which includes an upper gear plate 61 and a lower gear plate 62, the upper gear plate 61 is disposed on the rotating ring assembly 2, the lower gear plate 62 is disposed on the mounting assembly 1, and the upper gear plate 61 can be meshed with the lower gear plate 62. When the working head 3 is matched with external processing equipment to circumferentially process the workpiece 100, the upper toothed disc 61 and the lower toothed disc 62 are kept in a meshed state, the swivel assembly 2 can be fixed, the swivel assembly 2 is prevented from rotating in the process of processing the workpiece 100 by the external processing equipment, the working head 3 is further prevented from rotating relative to the external processing equipment, the positioning effect on the working head 3 is achieved, the working head 3 can be accurately and stably matched with the external processing equipment, and therefore the processing precision of the workpiece 100 is further improved. When the workpiece 100 needs to be switched between processing stations after the last processing station finishes processing, the upper fluted disc 61 is driven to be disengaged from the lower fluted disc 62 in the upward movement process of the rotating ring assembly 2 relative to the mounting assembly 1, so that the switching of the processing stations is facilitated. Optionally, an upper toothed disc 61 is disposed on the swivel 22 and a lower toothed disc 62 is disposed on the second mounting table 14.

Optionally, as shown in fig. 3, the multi-station rotary workbench provided in the present embodiment further includes a lifting assembly 7, and the lifting assembly 7 is configured to drive the swivel assembly 2 to move up and down relative to the mounting assembly 1. The up-and-down movement of the swivel assembly 2 relative to the mounting assembly 1 is achieved by the arrangement of the lifting assembly 7.

Optionally, as shown in fig. 3, the multi-station rotary table provided in this embodiment further includes a turntable driving mechanism 8, where the turntable driving mechanism 8 is mounted on the mounting assembly 1 and configured to drive the rotating shaft 71 to rotate so as to drive the rotating ring assembly 2 to rotate, that is, the conversion between the working head 3 and the processing station is achieved through the turntable driving mechanism 8.

Alternatively, as shown in fig. 3, the turntable driving mechanism 8 includes a first gear 81, a second gear 82, and a turntable driver 83, the first gear 81 is connected to one end of the rotating shaft 71 and can be engaged with the second gear 82, and the second gear 82 is connected to an output end of the turntable driver 83. The second gear 82 is driven to rotate by the turntable driver 83, so as to drive the first gear 81 to rotate, further drive the rotating shaft 71 to rotate, and finally realize that the rotating ring assembly 2 drives the working head 3 to rotate. Alternatively, in the present embodiment, the turntable driver 83 is a motor.

Preferably, the rotation preventing mechanisms 4 are arranged in one-to-one correspondence with the working heads 3. Alternatively, as shown in fig. 2-4, the anti-rotation mechanism 4 comprises a bayonet 41, the bayonet 41 is slidably disposed on the rotating ring assembly 2, the fin 11 is disposed on the mounting assembly 1, and the bayonet 41 is selectively abutted against the working head 3 or the fin 11. When the bayonet 41 is abutted with the working head 3, the working head 3 can be prevented from rotating; when the bayonet 41 abuts against the fin plate 11, the bayonet 41 can be prevented from interfering the work of the working head 3, and the working head 3 can be ensured to drive the workpiece 100 to rotate. Optionally, the rotating ring frame 23 is provided with a sliding hole, and the bayonet 41 is slidably inserted into the sliding hole. Alternatively, the fin plate 11 is provided on the first mounting table 13 and inclined obliquely upward. The arrangement in this way is beneficial to ensuring the reliability of the abutment of the fin plate 11 and the bayonet 41, thereby avoiding the bayonet 41 interfering the normal work of the working head 3.

Alternatively, as shown in fig. 5, the rotation prevention mechanism 4 further includes an elastic member 42, and one end of the elastic member 42 abuts against the swivel assembly 2 and the other end abuts against the detent 41. The elastic element 42 can provide a sliding power to the bayonet 41, which is beneficial to ensure that the bayonet 41 can be quickly switched to be abutted with the mounting assembly 1 and the working head 3.

Alternatively, as shown in fig. 5, the baffle plate 21 is provided on the swivel assembly 2, and one end of the elastic member 42 abuts against the baffle plate 21. The baffle 21 not only provides an abutting point for the elastic member 42, but also facilitates the installation and removal of the elastic member 42. Alternatively, in the present embodiment, the baffle 21 is provided on the top of the swivel frame 23.

Alternatively, as shown in fig. 5 and 6, the bayonet 41 is provided with an accommodating cavity 411, and the elastic member 42 is provided in the accommodating cavity 411 and has one end abutting against the bottom of the accommodating cavity 411. On one hand, the accommodating cavity 411 can play a role of protecting the elastic member 42; on the other hand, the accommodating cavity 411 can play a guiding role, and prevent the elastic member 42 from being bent unnecessarily in the compression process, thereby ensuring that the bayonet 41 can be accurately abutted with the working head 3. Preferably, in the present embodiment, one end of the elastic member 42 abuts against the baffle 21, and the other end abuts against the bottom of the accommodating chamber 411. Arranged in this manner, not only is the mounting and dismounting of the resilient member 42 facilitated, but also the guiding of the resilient member 42 can be achieved.

Alternatively, as shown in fig. 4 to 6, the bayonet 41 is provided with a flange 412, and the flange 412 can abut against the fin 11. The flange 412 is beneficial to ensuring the reliability of the abutting between the bayonet 41 and the fin plate 11, so as to avoid unexpected separation between the bayonet 41 and the fin plate 11 and ensure the normal work of the working head 3.

Alternatively, the end of the bayonet 41 can abut the first bevel gear 51. By the engagement of the locking pin 41 with the first bevel gear 51, the working head 3 is prevented from being undesirably rotated. Alternatively, as shown in fig. 4 to 6, the end of the click pin 41 is provided with a tapered head 413, and the tapered head 413 can be inserted into the tooth groove of the first bevel gear 51 and abut against the groove surface of the tooth groove. By inserting the tapered head 413 into the tooth groove of the first bevel gear 51, it is possible to ensure that the first bevel gear 51 is unexpectedly rotated, thereby accurately maintaining the work piece 100 in a stopped state at the previous processing station.

Alternatively, the number of the work head drivers 53 is equal to or smaller than the number of the work heads 3. When the working head 3 does not need to drive the workpiece 100 to rotate, the working head driver 53 may not be provided. For example, in the embodiment, the working head 3 corresponding to the loading and unloading processing station only needs to be responsible for loading and unloading, and does not need to drive the workpiece 100 to rotate, so the working head driver 53 is not arranged at the position, and the second bevel gear 52 connected to the output end of the working head driver 53 is also not arranged at the position. Of course, the number of the work head drivers 53 can be adjusted according to the number of the work heads 3 and the working property of the work heads 3, and is not limited herein. In addition, it should be noted that, since the working heads 3 can rotate to different processing stations, the first bevel gears 51 are arranged in one-to-one correspondence with the working heads 3, so that the first bevel gears 51 connected with the working heads 3 can be meshed with different second bevel gears 52 to drive the working heads 3 to rotate.

Alternatively, as shown in fig. 7, the lifting assembly 7 includes a rotating shaft 71 and a lifting driver 72, one end of the rotating shaft 71 is connected to the rotating ring assembly 2, and the lifting driver 72 can drive the rotating shaft 71 to move up and down relative to the mounting assembly 1. Namely, the lifting driver 72 drives the rotating shaft 71 to move up and down, so that the rotating shaft 71 drives the rotating ring assembly 2 to move up and down relative to the mounting assembly 1.

Optionally, the mounting assembly 1 is provided with a mounting hole 12, one end of the rotating shaft 71 passes through the mounting hole 12 to be connected with the rotating ring assembly 2, and the lifting driver 72 is disposed in the mounting hole 12. The lifting driver 72 is arranged in the mounting hole 12 of the mounting component 1, so that the mounting space is saved, the assembly is compact enough, and meanwhile, the protection effect on the lifting driver 72 can be achieved. Alternatively, the first mounting table 13 and the second mounting table 14 are respectively provided with a mounting hole 12, the two mounting holes 12 together form a receiving space for the elevating driver 72, and one end of the rotating shaft 71 passes through the two mounting holes 12 to be connected with the rotating ring assembly 2. Alternatively, one end of the rotation shaft 71 is connected to the center of the swivel frame 23. The arrangement in this way is beneficial to ensure that the rotating shaft 71 can drive the whole rotating ring assembly 2 to move up and down stably.

Optionally, the lifting driver 72 includes a piston 721, the piston 721 is sleeved on the rotating shaft 71, the rotating shaft 71 is a step shaft, and one end of the piston 721 can abut against a step surface of the step shaft. The piston 721 abuts against the step surface, thereby pushing the rotary shaft 71 to move up and down. Specifically, the piston 721 includes a connecting portion and a pushing portion, the connecting portion is sleeved on the rotating shaft 71, and one end of the connecting portion can abut against a step surface of the step shaft.

Optionally, as shown in fig. 7, the lifting assembly 7 further includes a shaft sleeve 75, the shaft sleeve 75 is disposed on the rotating shaft 71 and is partially embedded in the mounting hole 12. The shaft sleeve 75 can form a closed space by being matched with the mounting assembly 1, thereby protecting the rotating shaft 71 and the lifting driver 72 and preventing oil stains and the like from entering the mounting hole 12 to cause the reduction of the service life of the rotating shaft 71 and the lifting driver 72.

Optionally, as shown in fig. 8, the lifting assembly 7 further includes a first lifting air inlet joint 73, and the first lifting air inlet joint 73 is disposed on the mounting assembly 1 and is communicated with the mounting hole 12 for driving the piston 721 to move upwards. Specifically, the second mounting table 14 is provided with an upper intake passage 141, the first lift intake joint 73 communicates with the mounting hole 12 through the upper intake passage 141, and a communication port of the upper intake passage 141 and the mounting hole 12 is located below the pushing portion of the piston 721. As shown in fig. 9, the lifting assembly 7 further comprises a second lifting air inlet joint 74, and the second lifting air inlet joint 74 is disposed on the mounting assembly 1 and is communicated with the mounting hole 12 for driving the piston 721 to move downwards. Specifically, the first mounting table 13 is provided with a first lower air inlet passage 131, the second mounting table 14 is provided with a second lower air inlet passage 142, the second lift air inlet joint 74 is communicated with the mounting hole 12 sequentially through the second lower air inlet passage 142 and the first lower air inlet passage 131, and a communication port of the first lower air inlet passage 131 and the mounting hole 12 is located above the pushing portion of the piston 721. Alternatively, as shown in fig. 3, the gas protection mechanism 9 includes a first protective gas inlet joint 91, and the first protective gas inlet joint 91 is fixed to the mounting assembly 1. That is, the first protection air inlet joint 91 can not move relative to the mounting assembly 1, and the arrangement is favorable for communicating the first protection air inlet joint 91 with an external air supply mechanism, because the working head 3 can rotate to different processing stations during working, if the first protection air inlet joint 91 is directly arranged on a structure needing to rotate, such as the working head 3, the first protection air inlet joint 91 and the external air supply mechanism are difficult to communicate.

Alternatively, the first protective inlet fitting 91 is disposed on the bushing 75, and the bushing 75 is secured to the second mounting block 14. Optionally, the gas protection mechanism 9 further includes a first protection gas outlet joint 92 and a second protection gas outlet joint 93, one end of the first protection gas outlet joint 92 is communicated with the first protection gas inlet joint 91, the other end of the first protection gas outlet joint is communicated with the second protection gas outlet joint 93, and the second protection gas outlet joint 93 is communicated with the inside of the working head 3. Optionally, a first protective air outlet joint 92 is arranged on the working head 3, and a second protective air outlet joint 93 is arranged on the rotary ring 22. Optionally, the second protection air outlet joints 93 are arranged in one-to-one correspondence with the working heads 3. Optionally, the plurality of second protection air outlet joints 93 are communicated with the first protection air inlet joint 91 at the same time, that is, in the present embodiment, the first protection air inlet joint 91 can deliver high-pressure air to the plurality of second protection air outlet joints 93 at the same time to protect the plurality of working heads 3. Optionally, the first protection air outlet joints 92 are arranged in one-to-one correspondence with the second protection air outlet joints 93.

Optionally, as shown in fig. 7, a first shielding gas channel 751 is formed on the shaft sleeve 75, a second shielding gas channel 711 and a third shielding gas channel 712 are formed on the rotating shaft 71, a fourth shielding gas channel 231 is formed on the rotating ring frame 23, a fifth shielding gas channel 221 is formed on the rotating ring 22, and the first shielding gas inlet joint 91 is communicated with the first shielding gas outlet joint 92 sequentially through the first shielding gas channel 751, the second shielding gas channel 711, the third shielding gas channel 712, the fourth shielding gas channel 231, and the fifth shielding gas channel 221. Optionally, the first protection air outlet joint 92 is communicated with the second protection air outlet joint 93 through an air pipe. That is, the high-pressure air is introduced from the first protective air inlet joint 91, sequentially flows through the first protective air channel 751, the second protective air channel 711, the third protective air channel 712, the fourth protective air channel 231 and the fifth protective air channel 221, then flows into the first protective air outlet joint 92, then flows into the second protective air outlet joint 93 through the air pipe, and finally flows into the interior of the working head 3.

Optionally, as shown in fig. 1 and 7, the gear disc assembly 6 further comprises a protection plate 63, the protection plate 63 is disposed around the upper gear disc 61 and the lower gear disc 62, an upper end of the protection plate 63 abuts the rotating ring assembly 2, and a lower end of the protection plate 63 abuts the mounting assembly 1. Through the cooperation of protection shield 63 with swivel assembly 2 and installation component 1, can play the effect of protection upper toothed disc 61 and lower toothed disc 62, prevent that foreign matter such as dust and processing piece from entering into the meshing department of upper toothed disc 61 and lower toothed disc 62, influencing the work precision of upper toothed disc 61 and lower toothed disc 62. Specifically, the upper end of the protection plate 63 abuts against the swivel 22, and the lower end of the protection plate 63 abuts against the second mounting table 14.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (10)

1. A multi-station rotary table, comprising:

a mounting assembly (1);

the rotating ring component (2) is rotatably erected on the mounting component (1) and can move up and down relative to the mounting component (1);

the working heads (3) are rotatably arranged on the rotating ring assembly (2), and the working heads (3) are configured to clamp a workpiece (100);

and the anti-rotation mechanism (4) is slidably arranged on the rotating ring component (2) and is selectively abutted with the mounting component (1) or the working head (3).

2. A multi-station rotary table according to claim 1, wherein the rotation prevention mechanism (4) comprises a bayonet (41), the bayonet (41) is slidably arranged on the swivel assembly (2), a fin (11) is arranged on the mounting assembly (1), and the bayonet (41) is selectively abutted with the working head (3) or the fin (11).

3. A multistation rotary table according to claim 2 characterized in that the anti-rotation mechanism (4) further comprises a resilient member (42), one end of the resilient member (42) abutting the swivel assembly (2) and the other end abutting the bayonet (41).

4. A multi-station rotary table according to claim 3, wherein the swivel assembly (2) is provided with a stop plate (21), and one end of the resilient member (42) abuts against the stop plate (21).

5. A multi-station rotary table according to claim 3, wherein the bayonet lock (41) is provided with a containing cavity (411), the elastic member (42) is arranged in the containing cavity (411) and one end of the elastic member abuts against the bottom of the containing cavity (411).

6. A multistation rotary table according to claim 2 characterized in that the bayonet (41) is provided with a flange (412), the flange (412) being capable of abutting against the fin (11).

7. A multi-station rotary table according to claim 2, further comprising a working head driving mechanism (5), wherein the working head driving mechanism (5) is mounted on the mounting assembly (1) and configured to drive the working head (3) to rotate so as to drive the workpiece (100) to rotate.

8. A multi-station rotary table according to claim 7, wherein the working head driving mechanism (5) comprises a first bevel gear (51), a second bevel gear (52) and a working head driver (53), the first bevel gear (51) is connected with the working head (3) and can be meshed with the second bevel gear (52), and the second bevel gear (52) is connected with the output end of the working head driver (53).

9. A multi-station rotary table according to claim 8, wherein the ends of the bayonet (41) can abut the first bevel gear (51).

10. A multi-station rotary table according to claim 9, wherein the ends of the bayonet pins (41) are provided with a conical head (413), the conical head (413) being insertable into and abutting the gullet face of the first bevel gear (51).

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