CN219258746U - Turnover mechanism - Google Patents

Abstract

The application relates to a tilting mechanism for the upset of work piece, tilting mechanism include frame, driving piece and upset subassembly, wherein: the rack is provided with a track groove which is provided with a bending steering area; the driving piece is fixed on the frame and is provided with an output shaft; the turnover assembly comprises a rotating shaft, a roller, a swinging rod and a bearing piece, wherein the rotating shaft is rotatably connected to the output shaft, the axis of the rotating shaft is perpendicular to the axis of the output shaft, the swinging rod and the bearing piece are respectively arranged at two opposite ends of the rotating shaft, the swinging rod can rotate on the rotating shaft, the roller is rotatably connected to the end part of the swinging rod, far away from the rotating shaft, and the roller is slidably embedded in the track groove. The utility model provides a tilting mechanism, the track groove can prescribe a limit to the motion track of gyro wheel, and the motion stability of gyro wheel is higher, and then improves tilting mechanism's stability in the upset motion in-process, avoids the work piece that bears on the carrier to appear rocking, dropping etc. adverse phenomenon in the upset in-process.

Description

Turnover mechanism

Technical Field

The application relates to the technical field of automation equipment, in particular to a turnover mechanism.

Background

With the rapid development of science and technology, during the processing, detection, assembly and other processes of a workpiece, the workpiece needs to be turned over to adjust the workpiece to a proper position for processing. For example, in the process of assembling a workpiece, certain parts in the device often need to be assembled and used in a manner of distinguishing front and back sides, so that the corresponding parts need to be aligned in position, that is, the front and back sides of the parts are distinguished, so that in the process of assembling the parts, the parts can be quickly assembled to specified positions according to specified installation requirements.

In the related art, the turnover mechanism generally comprises an air cylinder, a follow-up cam and a turnover shaft, and when the air cylinder outputs power to drive the follow-up cam to move and drive the turnover shaft to rotate, the workpiece on the turnover shaft can be turned over. However, in the above-mentioned tilting mechanism, because the follower cam rotates in a relatively free state, when the cylinder outputs power to the follower cam, the follower cam is prone to occurrence of bad phenomenon of rocking in the motion process, resulting in poor stability of the tilting mechanism in the workpiece tilting process, and the workpiece is prone to occurrence of bad phenomenon such as rocking, dropping in the tilting process.

Disclosure of Invention

Based on this, it is necessary to provide a tilting mechanism against the problem of poor stability during the tilting of the workpiece by the tilting mechanism.

A turnover mechanism for turnover of a workpiece, the turnover mechanism comprising:

the device comprises a rack, wherein a track groove is formed in the rack, and the track groove is provided with a bending steering area;

the driving piece is fixed on the frame and is provided with an output shaft;

the turnover assembly comprises a rotating shaft, rollers, a swinging rod and a bearing piece, wherein the rotating shaft is rotatably connected to the output shaft, the axis of the rotating shaft is perpendicular to the axis of the output shaft, the swinging rod and the bearing piece are respectively arranged at two opposite ends of the rotating shaft, the swinging rod is rotatable in the rotating shaft, the rollers are rotatably connected to the end part, away from the rotating shaft, of the swinging rod, and the swinging rod is slidably embedded in the track groove.

In one embodiment, the track groove is formed by sequentially connecting a first linear groove, a V-shaped groove and a second linear groove.

In one embodiment, the frame comprises a mounting plate and a track plate perpendicular to the mounting plate, the driving piece is fixed on the mounting plate, the track groove is formed in the track plate, and the movement direction of the output shaft is consistent with the length extension direction of the track groove.

In one embodiment, the turnover mechanism further comprises a bearing seat, the bearing seat is connected to the output shaft, and the rotating shaft is rotatably inserted into the bearing seat.

In one embodiment, the bearing seat is provided with a through hole penetrating through the thickness direction of the bearing seat, the rotating shaft is rotatably inserted into the through hole, and two end parts of the rotating shaft respectively extend to two opposite sides of the through hole.

In one embodiment, the through hole is embedded with a bearing, and the rotating shaft is inserted into the bearing.

In one embodiment, the turnover mechanism further comprises at least one guide rod, the guide rod is inserted into the bearing seat, the bearing seat can move along the extending direction of the guide rod, and the extending direction of the guide rod is consistent with the extending direction of the output shaft.

In one embodiment, the turnover mechanism further comprises a first buffer and a second buffer, the first buffer and the second buffer are both fixed on the frame, the first buffer is close to the driving piece, and the second buffer is close to the turnover assembly.

In one embodiment, the first buffer and the second buffer are both hydraulic buffers.

In one embodiment, the bearing member is a sucker arranged on the rotating shaft, and the sucker is used for sucking the workpiece.

Above-mentioned tilting mechanism, driving piece output power to the output shaft to drive the output shaft and do telescopic motion in its axis direction in the frame, the output shaft drives the pivot in the motion process simultaneously and follows output shaft axis direction motion, because the gyro wheel passes through the pendulum rod to be connected in the pivot tip, the pivot can drive the gyro wheel and slide in the track groove this moment, when the gyro wheel slides to buckling and turn to the region, the gyro wheel drives the pendulum rod and rotates, and drive the pivot through the pendulum rod and rotate on the output shaft, and the pivot can realize the rotation of carrier in the rotation process, in order to carry out the upset operation to the work piece that bears on the carrier. The utility model provides a tilting mechanism, when driving piece output power to gyro wheel on, the gyro wheel slides in the track inslot, because the track groove can prescribe a limit to the motion track of gyro wheel, the motion stability of gyro wheel is higher, and then improves tilting mechanism's stability in the upset motion process, avoids appearing rocking, dropping etc. adverse phenomenon at the upset in-process of the work piece that bears on the carrier.

Drawings

Fig. 1 is a schematic structural view of a tilting mechanism provided in some embodiments.

Fig. 2 is a side view of the tilting mechanism provided in some embodiments.

Fig. 3 is a rear view of the tilting mechanism provided in some embodiments.

Reference numerals:

100. a turnover mechanism;

110. a frame; 111. a track groove; 1111. a first linear groove; 1112. a V-shaped groove; 1113. a second linear groove; 112. a mounting plate; 113. a track plate; 120. a driving member; 121. an output shaft; 130. a guide rod; 140. a flip assembly; 141. a rotating shaft; 142. a roller; 143. swing rod; 144. a carrier; 150. a bearing seat; 151. a through hole; 152. a bearing; 160. a first buffer; 170. and a second buffer.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that, if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., these terms refer to the orientation or positional relationship based on the drawings, which are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In this application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.

The following describes the technical scheme provided by the embodiment of the application with reference to the accompanying drawings.

As shown in fig. 1-3, the present application provides a turnover mechanism 100, where the turnover mechanism 100 includes a frame 110, a driving member 120, and a turnover assembly 140, and the turnover mechanism 100 is used for turnover operation of a workpiece.

The frame 110 is provided with a track groove 111, and the track groove 111 is provided with a bending and steering area. As in the present embodiment, the rail groove 111 is integrally formed to the frame 110 by extrusion, casting, or the like, and the rail groove 111 has a V-shaped turning region, an S-shaped turning region, or other shaped turning region to form a bending turning region in the rail groove 111.

The driving member 120 is fixed to the frame 110 by screwing, welding, etc., and the driving member 120 has an output shaft 121, so that when the driving member 120 outputs power, the driving member 120 can drive the output shaft 121 to perform telescopic motion along the axial direction thereof. As in the present embodiment, the driving member 120 is a cylinder. In other possible embodiments, the driving member 120 may be a motor, a hydraulic cylinder, or other elements capable of outputting power.

The turnover assembly 140 includes a rotating shaft 141, a roller 142, a swing link 143, and a carrier 144. The rotary shaft 141 is connected to an end of the output shaft 121, and the rotary shaft 141 is rotatable on the output shaft 121, and an axis of the rotary shaft 141 is perpendicular to an axis of the output shaft 121, i.e., the rotary shaft 141 is disposed to intersect the output shaft 121. The swing rod 143 and the bearing member 144 are respectively disposed at two opposite ends of the rotating shaft 141, the swing rod 143 is rotatable on the rotating shaft 141, the roller 142 is rotatably connected to an end of the swing rod 143 away from the rotating shaft 141, and the roller 142 is slidably embedded in the track groove 111. As in the present embodiment, when the end of the output shaft 121 is inserted into the rotating shaft 141, the two end portions of the rotating shaft 141 extend to two opposite sides of the output shaft 121, the swing rod 143 and the bearing member 144 are respectively located at two opposite end portions of the rotating shaft 141, one end portion of the swing rod 143 is hinged to the rotating shaft 141, and the other end portion of the swing rod 143 is hinged to the roller 142, so that when the roller 142 slides in the bending and steering region of the track groove 111, the roller 142 can drive the rotating shaft 141 to rotate through the swing rod 143.

The turnover mechanism 100, the driving member 120 outputs power to the output shaft 121 to drive the output shaft 121 to perform telescopic motion on the frame 110 along the axial direction of the output shaft, and meanwhile, the output shaft 121 drives the rotating shaft 141 to move along the axial direction of the output shaft 121 in the motion process, since the roller 142 is connected to the end of the rotating shaft 141 through the swing rod 143, the roller 141 can drive the roller 142 to slide in the track groove 111 at this time, when the roller 142 slides to a bending and steering area, the roller 142 drives the swing rod 143 to rotate, and drives the rotating shaft 141 to rotate on the output shaft 121 through the swing rod 143, and the rotating shaft 141 can realize the rotation of the bearing member 144 in the rotation process, so as to perform turnover operation on the workpiece borne on the bearing member 144. According to the turnover mechanism 100 provided by the application, when the driving piece 120 outputs power to the roller 142, the roller 142 slides in the track groove 111, the track groove 111 can limit the movement track of the roller 142, the movement stability of the roller 142 is higher, the stability of the turnover mechanism 100 in the turnover movement process is further improved, and the adverse phenomena that workpieces borne on the bearing piece 144 shake, fall and the like in the turnover process are avoided.

In one embodiment, as shown in fig. 1-3, the track groove 111 is formed by sequentially connecting a first linear groove 1111, a V-shaped groove 1112 and a second linear groove 1113, i.e. one end of the V-shaped groove 1112 is connected to the first linear groove 1111, and the other end of the V-shaped groove 1112 is connected to the second linear groove 1113. As in the present embodiment, the length extension direction of the first linear groove 1111 coincides with the axial direction of the output shaft 121, and the length extension direction of the second linear groove 1113 also coincides with the axial direction of the output shaft 121. When the driving member 120 outputs power, the output shaft 121 can be driven to perform telescopic motion on the frame 110 along the axial direction thereof, the output shaft 121 drives the rotating shaft 141 to move along the axial direction of the output shaft 121, and at this time, the rotating shaft 141 can drive the roller 142 to slide in the track groove 111. When the roller 142 sequentially passes through the first linear slot 1111, the V-shaped slot 1112, and the second linear slot 1113, the specific movement process of the roller 142 is as follows: the roller 142 slides in the first linear slot 1111 first, the rotating shaft 141 can drive the bearing member 144 to translate or lift on the frame 110, then when the roller 142 moves into the V-shaped slot 1112, the roller 142 drives the swing rod 143 to rotate, and the swing rod 143 drives the rotating shaft 141 to rotate on the output shaft 121, and the rotating shaft 141 can realize the rotation of the bearing member 144 in the rotation process, so as to perform 180 DEG or other angle turnover operation on the workpiece borne on the bearing member 144, and finally when the roller 142 moves into the second linear slot 1113, the rotating shaft 141 can continuously drive the bearing member 144 to translate or lift on the frame 110. Conversely, when the driving member 120 outputs power contrary to the above process, the roller 142 sequentially passes through the second linear groove 1113, the V-shaped groove 1112 and the first linear groove 1111, so as to realize the translation or lifting movement of the workpiece on the frame 110, and simultaneously perform the overturning operation of the workpiece by 180 ° or other angles, and realize the resetting of the carrier 144.

It should be noted that, in other possible embodiments, the track groove 111 may be formed by sequentially connecting the first linear groove 1111, the S-shaped groove and the second linear groove 1113, so that the translation or lifting movement of the workpiece on the frame 110 may be achieved, and meanwhile, the workpiece may be turned over. Of course, the specific shape of the track groove 111 may be other, and the present application is not limited to the specific shape of the track groove 111.

In one embodiment, as shown in fig. 1-3, the rack 110 includes a mounting plate 112 and a track plate 113, and the mounting plate 112 is disposed perpendicular to the track plate 113. The driving member 120 is fixed to the mounting plate 112 by screwing, welding, or the like to fix the driving member 120 to the frame 110. The track groove 111 is formed in the track plate 113, so that the track groove 111 is formed in the frame 110, and the movement direction of the output shaft 121 is consistent with the length extension direction of the track groove 111. When the output shaft 121 performs telescopic motion along the axis direction, the power can be transmitted to the roller 142 through the rotating shaft 141, and the roller 142 is driven to move in the track groove 111, so as to perform overturning operation on the workpiece carried on the carrier 144.

In this embodiment, the track grooves 111 are integrally formed with the track plates 113 by extrusion, casting, etc., so as to simplify the forming process of the track grooves 111 on the track plates 113 and save the manufacturing cost of the track plates 113 and the track grooves 111.

In one embodiment, as shown in fig. 1 and 2, the turnover mechanism 100 further includes a bearing housing 150. The bearing seat 150 is connected to an end of the output shaft 121, for example, the end of the output shaft 121 may be connected to the bearing seat 150 by a clamping, inserting, or the like, so as to realize connection between the bearing seat 150 and the driving member 120. The rotating shaft 141 is rotatably inserted into the bearing seat 150, and when the output shaft 121 performs telescopic motion along the axial direction thereof, the output shaft 121 drives the rotating shaft 141 to move through the bearing seat 150, so as to realize translational or lifting motion of the workpiece on the frame 110, and simultaneously perform overturning operation on the workpiece.

Further, as shown in fig. 1, the bearing housing 150 is provided with a through hole 151, and the through hole 151 penetrates the bearing housing 150 in the thickness direction of the bearing housing 150. The rotating shaft 141 is rotatably inserted into the through hole 151 to realize connection between the rotating shaft 141 and the bearing seat 150 and indirectly realize connection between the rotating shaft 141 and the driving member 120, and two ends of the rotating shaft 141 respectively extend to two opposite sides of the through hole 151 to respectively arrange the swing rod 143 and the bearing member 144 at two opposite ends of the rotating shaft 141.

In order to improve smoothness of the workpiece during the overturning process, specifically, as shown in fig. 1-3, a bearing 152 is embedded in the through hole 151, and the rotating shaft 141 is inserted into the bearing 152. In general, in order to improve the connection reliability between the rotating shaft 141 and the bearing seat 150, the assembly gap between the rotating shaft 141 and the wall of the through hole 151 is often reserved to be smaller, but the arrangement makes the friction between the rotating shaft 141 and the inner wall of the through hole 151 more obvious, so that the friction resistance of the rotating shaft 141 in the rotating process is larger, and because the roller 142 moves in the track groove 111, the roller 142 drives the rotating shaft 141 to rotate through the swing rod 143 with smaller power, and the larger friction resistance easily causes the rotation of the rotating shaft 141 to be blocked or even unable to rotate. In the embodiment, the bearing 152 is embedded in the through hole 151, and the rotating shaft 141 is inserted into the bearing 152, so that the friction coefficient of the rotating shaft 141 in the rotating process can be reduced, the rotation precision of the rotating shaft 141 is ensured, and the smoothness of the workpiece in the overturning process is further improved.

To further improve the stability of the flipping mechanism 100 during flipping, in one embodiment, as shown in fig. 1 and 2, the flipping mechanism 100 further includes at least one guide bar 130. The guide rod 130 is inserted into the bearing housing 150, and the bearing housing 150 is movable on the guide rod 130 along the extending direction of the guide rod 130, and the extending direction of the guide rod 130 is consistent with the extending direction of the output shaft 121. When the driving member 120 drives the output shaft 121 to make telescopic motion on the frame 110, the output shaft 121 drives the rotation shaft 141 to move through the bearing seat 150, and the guide rod 130 can limit the movement path of the bearing seat 150, so as to improve the stability of the bearing seat 150 in the movement process.

As in the present embodiment, the number of the guide rods 130 is two, and the extending directions of the two guide rods 130 are consistent with the axial direction of the output shaft 121, and the two guide rods 130 are respectively inserted into two opposite sides of the bearing seat 150. In other possible embodiments, the number of guide rods 130 may be three, four, or other numbers, and the present application is not limited to a specific number of guide rods 130.

Further, as shown in fig. 1 and 2, the flipping mechanism 100 further includes a first buffer 160 and a second buffer 170. The first buffer 160 and the second buffer 170 are fixed on the frame 110 by screwing, welding, etc., and the first buffer 160 is disposed near the driving member 120, and the second buffer 170 is disposed near the turning assembly 140. When the driving member 120 outputs power, the driving member 120 and the flipping assembly 140 generate a larger inertial force during the movement, and particularly, the inertial force generated by the driving member 120 and the flipping assembly 140 is more obvious at the initial stage and the final stage of the power output of the driving member 120. The kinetic energy generated by the driving member 120 can be released by the first damper 160 to reduce the inertial force of the driving member 120 on the frame 110; likewise, kinetic energy generated by the flipping assembly 140 during movement may be released by the second damper 170 to reduce inertial forces of the flipping assembly 140 on the housing 110.

According to the turnover mechanism 100, the inertia acting force of the driving member 120 and the turnover assembly 140 on the frame 110 can be reduced through the first buffer 160 and the second buffer 170, so that the stability of the turnover mechanism 100 in the turnover process is improved, and the adverse phenomena of shaking, dropping and the like of the workpiece borne on the bearing member 144 in the turnover process are avoided.

In the embodiment, the first buffer 160 and the second buffer 170 are both hydraulic buffers, and kinetic energy generated by the driving member 120 and the turnover assembly 140 can be converted into heat energy by the hydraulic buffers to be released into the air, so that inertia acting force of the driving member 120 and the turnover assembly 140 on the frame 110 is reduced, and stability of the turnover mechanism 100 in the turnover process is further improved. Of course, in other possible embodiments, the first damper 160 and the second damper 170 are not limited to the hydraulic damper provided above, but may be other elements made of flexible materials, and the specific types of the first damper 160 and the second damper 170 are not limited herein.

In one embodiment, as shown in fig. 1 and 2, the carrier 144 is a chuck disposed on the rotating shaft 141, and the chuck is used for sucking a workpiece. The suction cup can utilize the difference between the internal and external atmospheric pressure to absorb and clamp the workpiece, and can turn over the workpiece through the rotation of the rotating shaft 141.

In order to improve the reliability of the workpiece adsorption by the carrier 144, as shown in fig. 1 and 2, a plurality of suction cups are provided, and the plurality of suction cups are disposed on the rotating shaft 141 at intervals along the axial direction of the rotating shaft 141. The plurality of sucking discs can cooperate to adsorb the centre gripping to the work piece to improve the adsorption reliability of carrier 144 to the work piece, especially to the great work piece of volume, quality, a plurality of sucking discs can act on each region of work piece respectively, so that the adsorption affinity that acts on each region of work piece surface is more even, improves the adsorption reliability of carrier 144 to the work piece, avoids the absorptive work piece to appear rocking, dropping etc. adverse phenomenon on carrier 144 in the upset in-process.

It should be noted that in other possible embodiments, such as for a workpiece having magnetic attraction properties, the carrier 144 may also be a magnetic attraction member such as a magnet. In other possible embodiments, the carrier 144 may further include other elements capable of holding a workpiece, such as a clamping jaw, on the rotating shaft 141. The specific type of the carrier 144 may be specifically set according to the needs of the user, which is not limited in this application.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims (10)

1. A turnover mechanism for turnover of a workpiece, the turnover mechanism comprising:

the device comprises a rack, wherein a track groove is formed in the rack, and the track groove is provided with a bending steering area;

the driving piece is fixed on the frame and is provided with an output shaft;

the turnover assembly comprises a rotating shaft, rollers, a swinging rod and a bearing piece, wherein the rotating shaft is rotatably connected to the output shaft, the axis of the rotating shaft is perpendicular to the axis of the output shaft, the swinging rod and the bearing piece are respectively arranged at two opposite ends of the rotating shaft, the swinging rod is rotatable in the rotating shaft, the rollers are rotatably connected to the end part, away from the rotating shaft, of the swinging rod, and the swinging rod is slidably embedded in the track groove.

2. The turnover mechanism of claim 1, wherein the track groove is formed by sequentially connecting a first linear groove, a V-shaped groove and a second linear groove.

3. The turnover mechanism according to claim 1, wherein the frame comprises a mounting plate and a track plate vertically arranged with the mounting plate, the driving member is fixed on the mounting plate, the track groove is formed in the track plate, and the movement direction of the output shaft is consistent with the length extension direction of the track groove.

4. The turnover mechanism of claim 1 further comprising a bearing housing connected to said output shaft, said shaft rotatably inserted within said bearing housing.

5. The turnover mechanism of claim 4, wherein the bearing housing is provided with a through hole penetrating through the bearing housing in the thickness direction, the rotating shaft is rotatably inserted into the through hole, and two end parts of the rotating shaft respectively extend to two opposite sides of the through hole.

6. The turnover mechanism of claim 5, wherein a bearing is embedded in the through hole, and the rotating shaft is inserted in the bearing.

7. The turnover mechanism of claim 4 further comprising at least one guide rod inserted into said bearing housing, said bearing housing being movable in the direction in which said guide rod extends, said guide rod extending in a direction coincident with the direction in which said output shaft extends.

8. The turnover mechanism of claim 1 further comprising a first buffer and a second buffer, both of which are fixed to the frame, and the first buffer is disposed proximate the driving member and the second buffer is disposed proximate the turnover assembly.

9. The tilting mechanism according to claim 8, wherein the first and second buffers are both hydraulic buffers.

10. The turnover mechanism of claim 1, wherein the bearing member is a suction cup disposed on the rotating shaft, and the suction cup is used for sucking the workpiece.

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