Workpiece turnover device

Abstract

The utility model belongs to the technical field of machining, and particularly relates to a workpiece turnover device. The workpiece turnover device comprises a mounting base, a clamping assembly, a turntable and a rotation driving assembly, the clamping assembly comprises a fixing part and a clamping part, the fixing part is used for driving the clamping part to move, and the clamping part is used for clamping a workpiece; the fixed part is connected to the turntable; the rotation driving assembly is connected to the mounting base, the rotating disc is in transmission connection with the rotation driving assembly, and the rotation driving assembly is used for driving the rotating disc to rotate. By means of the workpiece turnover device in the technical scheme, the position precision of the clamping assembly and the workpiece after turnover can be effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of machining, specifically relates to a workpiece turnover device. BACKGROUND

[0002] In order to improve production efficiency and economic benefits significantly, modern mechanical manufacturing and processing equipment are gradually developing towards automation, digitization, high precision and wide applicability. In the current production process, due to the demand of workpiece processing, it is often necessary to process the workpiece on both sides. In this case, some equipment must be used according to the established processing procedure to process one side of the workpiece first, then turn it over to the other side, and then continue to process the next procedure. Because the shapes of the processed workpieces are different, various turnover mechanisms instead of manpower are emerging in an endless stream, which greatly saves the labor cost and effectively improves the production efficiency.

[0003] In the turnover process, the stability of the part has a crucial influence on the grabbing accuracy of the workpiece. If the workpiece deviates in position due to the shaking of the clamping jaw during rotation, it will directly affect the grabbing work in the next procedure. The turnover mechanism in the prior art has poor stability, which is not conducive to the transmission of the workpiece between different stations. Especially when the workpiece structure is complex or irregular in shape, the position accuracy of the workpiece is particularly important for the grabbing work of the industrial robot. Therefore, it is of important practical application value to develop a turnover mechanism with high stability, which can ensure the position accuracy of the workpiece during the turnover process, thereby improving the overall production efficiency and economic benefits.

[0004] Therefore, it is urgent to provide a workpiece turnover device with stable transmission to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at least solve how to guarantee the position accuracy of the clamping assembly and workpiece. The purpose is realized by the following technical scheme:

[0006] The utility model discloses a workpiece turnover device, including:

[0007] Mounting base;

[0008] Clamping assembly, the clamping assembly includes fixed part and clamping part, the fixed part is used to drive the clamping part moves, and the clamping part is used to clamp workpiece;

[0009] Rotary table, the fixed part is connected to the rotary table;

[0010] Rotary drive assembly, the rotary drive assembly is connected to the mounting base, the rotary table is transmissionally connected with the rotary drive assembly, and the rotary drive assembly is used to drive the rotary table rotates.

[0011] The workpiece turnover device in the technical scheme can drive the rotating disc to rotate when the rotating driving assembly is started. With the rotation of the rotating disc, the clamping assembly rotates. The fixed part in the clamping assembly is directly connected with the rotating disc, instead of being connected through any rod or other indirect mode. The direct connection mode enables the clamping assembly to keep a very stable state during rotation. Since the clamping assembly rotates stably, the shaking phenomenon of the workpiece during clamping is effectively reduced. The reduction of shaking is crucial to improve the position accuracy of the clamping assembly and the workpiece. When the position accuracy of the workpiece is improved, the subsequent grabbing operation will become more convenient and efficient.

[0012] In addition, the workpiece turnover device can have the following additional technical features.

[0013] In some embodiments of the utility model, the workpiece turnover device further comprises a first transmission assembly, the first transmission assembly comprises a transmission connected worm wheel and worm, the worm is in transmission connection with the rotating driving assembly, and the rotating disc is connected to the worm wheel.

[0014] In some embodiments of the utility model, the workpiece turnover device further comprises a rotating disc bearing, the rotating disc bearing comprises a shaft ring and a race, the shaft ring is rotatably connected to the race, the race is fixedly connected with the mounting base, and the shaft ring is fixedly connected with the worm wheel.

[0015] In some embodiments of the utility model, the mounting base comprises a support plate and a first housing, the first housing is connected to the support plate and can reciprocate along the vertical direction, and the first transmission assembly is connected to the inside of the first housing.

[0016] In some embodiments of the utility model, the workpiece turnover device further comprises a lifting driving assembly, a fixed end of the lifting driving assembly is fixedly connected with the support plate, an output end of the lifting driving assembly is fixedly connected with the first housing, and the lifting driving assembly is used for driving the first housing to reciprocate along the vertical direction.

[0017] In some embodiments of the utility model, both sides of the support plate are provided with sliding grooves, both sides of the first housing are respectively provided with pulleys, the pulleys are rotatably connected with the first housing, the pulleys are arranged in the sliding grooves and are in rolling connection with the inner walls of the sliding grooves.

[0018] In some embodiments of the utility model, the inner wall of the first housing is connected with a support piece, and the worm is arranged in the support piece and can rotate relative to the support piece.

[0019] In some embodiments of the utility model, the workpiece turnover device further includes a second transmission assembly, the second transmission assembly includes driving gear and driven gear which are in transmission connection, the driving gear is connected with the rotation driving assembly, the driven gear is fixedly connected with the worm.

[0020] In some embodiments of the utility model, the rotating disc includes first rotating disc and second rotating disc which are connected with each other, the first rotating disc is provided with positioning groove, the second rotating disc is provided with positioning convex, the positioning groove and the positioning convex are inserted, the first rotating disc is connected with the worm gear, the second rotating disc is connected with the fixed part.

[0021] In some embodiments of the utility model, the clamping part includes two clamping jaws, the two clamping jaws can be close to or away from each other, and one side of the clamping jaw for contacting the workpiece is provided with flexible pad. BRIEF DESCRIPTION OF DRAWINGS

[0022] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of preferred embodiments, and are not meant to limit the present utility. Moreover, like reference numerals in the attached figures are intended to represent the same parts throughout the various drawings. In the drawings:

[0023] Figure 1 The schematic view of the workpiece turnover device according to the embodiments of the utility model is shown when clamping the workpiece (the clamping assembly is in a certain position);

[0024] Figure 2 The schematic view of the workpiece turnover device according to the embodiments of the utility model is shown when clamping the workpiece (the clamping assembly is in another position);

[0025] Figure 3 The partial structure schematic view of the workpiece turnover device according to the embodiments of the utility model is shown;

[0026] Figure 4 The assembly structure schematic view of the clamping assembly and the first rotating disc according to the embodiments of the utility model is shown;

[0027] Figure 5 The assembly structure schematic view of the rotating disc bearing and the bearing seat according to the embodiments of the utility model is shown.

[0028] The various reference numerals in the attached drawings represent the following:

[0029] 10、workpiece;

[0030] 100, mounting base; 110, support plate; 120, first housing; 121, support; 122, turntable bearing; 1221, race; 1222, seat; 123, bearing seat; 130, base; 140, second housing;

[0031] 200, clamping assembly; 210, fixed part; 211, mounting block; 220, clamping part; 221, clamping jaw;

[0032] 300, turntable; 310, first turntable; 311, positioning groove; 320, second turntable; 321, positioning protrusion;

[0033] 400, rotation driving assembly;

[0034] 500, first transmission assembly; 510, worm gear; 520, worm;

[0035] 600, second transmission assembly; 610, driving gear; 620, driven gear. DETAILED DESCRIPTION

[0036] Example embodiments of the present disclosure will be described herein below with reference to the accompanying drawings. While example embodiments of the present disclosure are shown in the drawings, it is understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art.

[0037] It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are described, unless specifically identified as an order dependent step. It is also to be understood that additional or alternative steps can be employed.

[0038] Although the terms first, second, third, etc. can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can be only used to distinguish one element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and the like used herein do not imply a sequence or an order, but rather are used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of example embodiments.

[0039] For ease of description, spatial relative terms can be used herein to describe the relationship of one element or feature to another element or feature as shown in the figures, such as "inner", "outer", "inward", "outward", "lower", "below", "upper", "above", etc. Such spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, an element described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatial relative terms used herein interpreted accordingly.

[0040] Figure 1 A schematic view of the workpiece flipping device according to the embodiments of the present application is shown when clamping the workpiece 10 (the clamping assembly 200 is in a certain position). Figure 2 A schematic view of the workpiece flipping device according to the embodiments of the present application is shown when clamping the workpiece 10 (the clamping assembly 200 is in another position). As shown in Figure 1 And Figure 2 The present application provides a workpiece flipping device, which comprises a mounting base 100, a clamping assembly 200, a rotating disc 300 and a rotating driving assembly 400. The clamping assembly 200 comprises a fixed part 210 and a clamping part 220. The fixed part 210 is used to drive the clamping part 220 to move, and the clamping part 220 is used to clamp the workpiece 10. The fixed part 210 is connected to the rotating disc 300. The rotating driving assembly 400 is connected to the mounting base 100. The rotating disc 300 is in transmission connection with the rotating driving assembly 400. The rotating driving assembly 400 is used to drive the rotating disc 300 to rotate.

[0041] The workpiece turnover device in the technical solution has the advantages that during use, the rotating driving assembly 400 is started to drive the rotating disc 300 to rotate. With the rotation of the rotating disc 300, the clamping assembly 200 rotates together. The fixed part 210 in the clamping assembly 200 is directly connected with the rotating disc 300 instead of being connected through any rod or other indirect mode. The direct connection mode enables the clamping assembly 200 to keep a very stable state during rotation. Since the clamping assembly 200 rotates stably, the shaking phenomenon of the workpiece 10 during clamping is effectively reduced. The reduction of shaking is crucial for improving the position accuracy of the clamping assembly 200 and the workpiece 10. When the position accuracy of the workpiece 10 is improved, the subsequent grabbing operation becomes more convenient and efficient.

[0042] Further, the rotating driving assembly 400 is a driving force source for the work of the clamping assembly 200, and the rotating driving assembly 400 can be selected from a stepper motor or a servo motor.

[0043] Further, Figure 3 The assembly structure schematic view of the clamping assembly 200 and the first rotating disc 310 according to the embodiment of the utility model is schematically shown. Referring to Figure 3 The workpiece turnover device further comprises a first transmission assembly 500, the first transmission assembly 500 comprises a transmission-connected worm wheel 510 and a worm 520, the worm 520 is in transmission connection with the rotating driving assembly 400, and the rotating disc 300 is connected to the worm wheel 510.

[0044] The worm wheel 510 and the worm 520 are adopted for transmission, the structure is compact, and a larger transmission ratio can be realized in a smaller space. Since the teeth of the worm 520 are continuous helical, gradually enter and leave during meshing with the worm wheel 510, and the number of meshing teeth is relatively large, the transmission is stable and the noise is small. The rotating disc 300 and the worm wheel 510 are connected, which can ensure the stable rotation of the rotating disc 300 and further ensure the stable rotation of the clamping assembly 200. The worm wheel 510 and the worm 520 have a reverse self-locking function, and the worm wheel 510 cannot drive the worm 520 to rotate.

[0045] Further, referring to Figure 2 and Figure 3 The mounting base 100 comprises a support plate 110 and a first housing 120, the first housing 120 is connected to the support plate 110 and can reciprocate along the vertical direction, and the first transmission assembly 500 is connected to the inside of the first housing 120.

[0046] By setting the first shell 120 and setting the first transmission assembly 500 inside the first shell 120, the first shell 120 can play a protective role on the first transmission assembly 500, so as to avoid foreign matter pollution affecting the operation of the first transmission assembly 500. Optionally, the support plate 110 is a rectangular plate structure, and the support plate 110 is arranged in the vertical direction, so that the first shell 120 can move up and down on the support plate 110. During the upward or downward movement of the first shell 120, the clamping assembly 200 drives the workpiece 10 to move in the vertical direction, so that the workpiece 10 is at a suitable height. Illustratively, in an embodiment, a workbench for processing the workpiece 10 is arranged directly below the clamping part 220, after the clamping assembly 200 completes the turnover of the workpiece 10, the first shell 120 moves downward, so that the workpiece 10 is close to the workbench, when the workpiece 10 reaches the predetermined position, the clamping jaw 221 is opened to place the workpiece 10 on the workbench, after the placement is completed, the first shell 120 drives the clamping assembly 200 to move upward, and the clamping and turnover of the next workpiece 10 are performed.

[0047] In another embodiment, the first shell 120 can be fixedly connected with the support plate 110. Optionally, the first shell 120 is fixedly connected with the support plate 110 through bolts near the side plate of the support plate 110. Optionally, the bottom of the support plate 110 is provided with a base 130, one side plate of the base 130 is connected with the support plate 110, so as to provide stable support for the support plate 110.

[0048] Further, the workpiece turnover device further comprises a lifting driving assembly, a fixed end of the lifting driving assembly is fixedly connected with the mounting base 100, and an output end of the lifting driving assembly is fixedly connected with the first shell 120, and the lifting driving assembly is used to drive the first shell 120 to move up and down in the vertical direction.

[0049] Optionally, the lifting driving assembly is a worm screw lifting machine. The worm screw lifting machine is arranged below the first shell 120, the top of the screw rod is connected with the bottom of the first shell 120, and is used to drive the first shell 120 to lift.

[0050] Further, both sides of the support plate 110 are provided with sliding grooves, both sides of the first shell 120 are respectively provided with pulleys, the pulleys are rotationally connected with the first shell 120, and the pulleys are arranged in the sliding grooves and rotationally connected with the inner walls of the sliding grooves.

[0051] Optionally, the left and right sides of the first shell 120 are respectively provided with connecting shafts extending in the horizontal direction, the pulleys are sleeved on the connecting shafts and rotationally connected with the connecting shafts. The sliding grooves play a guiding role in the movement of the pulleys. Optionally, the number of the pulleys on each side of the second shell 140 can be one or more, which is set according to the use requirement.

[0052] Further, referring to Figure 3 The inner wall of the first shell 120 is connected with a support 121, and the worm 520 is arranged through the support 121 and can rotate relative to the support 121.

[0053] Optionally, the support 121 is a block structure, and a through hole is formed in the support 121, and the screw rod is arranged through the through hole and is rotationally connected with the support 121. The bottom of the support 121 is provided with an extension portion, and the extension portion is connected with the first shell 120 through bolts. Optionally, the support 121 and the first shell 120 are connected close to the side plate of the support plate 110. Optionally, the support 121 is provided with two, and the two supports 121 are respectively located at two ends of the screw rod, so as to stably support the screw rod.

[0054] Further, referring to Figure 3 The workpiece turnover device further comprises a second transmission assembly 600, the second transmission assembly 600 comprises a driving gear 610 and a driven gear 620 which are in transmission connection, the driving gear 610 is connected with the rotation driving assembly 400, and the driven gear 620 is connected with the worm 520.

[0055] Optionally, the second transmission assembly 600 realizes speed reduction through the meshing of the driving gear 610 and the driven gear 620, and at the same time of reducing the rotation speed, the output torque can be increased, so that the worm 520 can generate greater driving force. The driving member drives the driving gear 610 to rotate, and then the driving gear 610 drives the driven gear 620 to rotate. Optionally, the driven gear 620 and the worm 520 are fixedly connected, and the driven gear 620 drives the worm 520 to rotate together.

[0056] Further, Figure 4 The assembly structure schematic view of the turntable bearing 122 and the bearing seat 123 according to the embodiment of the utility model is schematically shown. Referring to Figure 3 And Figure 4 The workpiece turnover device further comprises a turntable bearing 122, the turntable bearing 122 comprises an axle ring 1221 and a seat ring 1222, the axle ring 1221 is rotationally connected to the seat ring 1222, the seat ring 1222 is fixedly connected with the mounting base 100, and the axle ring 1221 is fixedly connected with the worm wheel 510.

[0057] It can be understood that the main function of the rotary bearing 122 is to bear the comprehensive load of large axial load, radial load and overturning moment at the same time, and to integrate the functions of supporting, rotating, transmitting and fixing, so as to effectively ensure the stable and precise rotation of the equipment and improve the stability and working efficiency of the system. Optionally, the bearing seat 123 is arranged on the side plate of the first shell 120 close to the support plate 110, and the race 1222 of the rotary bearing 122 is connected with the bearing seat 123. Optionally, the bearing seat 123 is in a ring structure, including an inner ring and an outer ring, the inner ring is connected to the inner side of the outer ring, and the height of the inner ring is higher than that of the outer ring. The outer ring is provided with a through hole for penetrating a bolt, and the outer ring is connected with the side plate of the first shell 120 through the bolt. Optionally, the inner ring and the race 1222 are both provided with threaded holes, so that the race 1222 and the inner ring are connected through the bolt.

[0058] Further, Figure 5 The partial structure schematic diagram of the workpiece turnover device according to the embodiment of the utility model is schematically shown. Referring to Figure 3 And Figure 5 The rotary disc 300 includes the first rotary disc 310 and the second rotary disc 320 connected with each other, the first rotary disc 310 is provided with the positioning groove 311, the second rotary disc 320 is provided with the positioning convex 321, the positioning groove 311 and the positioning convex 321 are inserted, the first rotary disc 310 is connected with the worm wheel 510, and the second rotary disc 320 is connected with the fixed part 210.

[0059] In an embodiment, the cross section of the positioning groove 311 is in a cross type, and correspondingly, the positioning convex 321 is in a cross type. In other embodiments, the cross section of the positioning groove 311 can also be in a one type, a square type or a waist type, and the shape of the positioning convex 321 is set according to the shape of the positioning groove 311.

[0060] Further, referring to Figure 5 The clamping part 220 includes two clamping jaws 221, the two clamping jaws 221 can approach or move away from each other, and one side of the clamping jaw 221 used for contacting the workpiece 10 is provided with a flexible pad.

[0061] Optionally, the fixing part 210 is substantially in a cuboid structure, and the front end of the fixing part 210 is provided with a mounting block 211, and the middle part of the mounting block 211 is provided with a mounting groove, the mounting groove is in a character type, and one end of the clamping jaw 221 connected with the fixing part 210 is embedded in the mounting groove. The one end of the clamping jaw 221 embedded in the mounting groove is widened, so as to ensure the stable connection of the clamping jaw 221 and the fixing part 210. It can be understood that, since the two clamping jaws 221 can be close to or away from each other, the spacing can be adjusted according to the shape of the workpiece 10, so as to be widely applicable to workpieces 10 of different shapes. Optionally, the clamping assembly 200 can be an electric clamping jaw 221, which uses a motor as power and can be used to clamp or grab the workpiece 10. The electric clamping jaw 221 can effectively replace manual grabbing work, and can effectively improve the production efficiency and the safety of the work.

[0062] Further, the flexible pad can be a rubber pad, which can effectively play a buffering role, prevent hard contact between the clamping jaw 221 and the workpiece 10, and avoid damage to the workpiece 10 by the clamping jaw 221. Optionally, the flexible pad can be pasted on the inner side of the clamping jaw 221 or bound on the clamping jaw 221 by a binding belt. Of course, a bolt can also pass through the flexible pad and the clamping jaw 221 and be locked.

[0063] The working process of the workpiece turnover device provided by the technical scheme is as follows:

[0064] After the clamping jaw 221 clamps the workpiece 10 in the case of fixed connection of the first shell 120 and the support plate 110, the rotation driving assembly 400 drives the driving gear 610 to rotate, the driving gear 610 drives the driven gear 620 to rotate, the worm 520 and the driven gear 620 rotate synchronously, and then the worm 520 drives the worm wheel 510 to rotate, the turntable 300 and the worm wheel 510 rotate synchronously, at the same time, the clamping assembly 200 and the turntable 300 rotate together, and the turnover of the workpiece 10 is realized. After the turnover is completed, the industrial robot delivers the workpiece 10 to the next process.

[0065] In the case of sliding connection of the first shell 120 and the support plate 110, the lifting driving assembly drives the first shell 120, so that the clamping assembly 200 is adjusted to the initial position. Then, the clamping jaw 221 clamps the workpiece 10, and then the rotation driving assembly 400 drives the driving gear 610 to rotate, the driving gear 610 drives the driven gear 620 to rotate, the worm 520 and the driven gear 620 rotate synchronously, and then the worm 520 drives the worm wheel 510 to rotate, the turntable 300 and the worm wheel 510 rotate synchronously, at the same time, the clamping assembly 200 and the turntable 300 rotate together, and the turnover of the workpiece 10 is realized. After the turnover is completed, the lifting driving assembly drives the first shell 120 to adjust the clamping assembly 200 to the predetermined position, releases the clamping jaw 221, and places the workpiece 10 on the workbench below.

[0066] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A workpiece flipping device, characterized in that, include: Mounting base (100); A clamping assembly (200) includes a fixing part (210) and a clamping part (220). The fixing part (210) is used to drive the clamping part (220) to move, and the clamping part (220) is used to clamp the workpiece (10). Turntable (300), the fixing part (210) is connected to the turntable (300); A rotation drive assembly (400) is connected to the mounting base (100), and the turntable (300) is connected to the rotation drive assembly (400) for driving the turntable (300) to rotate.

2. The workpiece flipping device according to claim 1, characterized in that, The workpiece flipping device further includes a first transmission assembly (500), which includes a worm gear (510) and a worm (520) that are connected in transmission. The worm (520) is connected in transmission to the rotation drive assembly (400), and the turntable (300) is connected to the worm gear (510).

3. The workpiece flipping device according to claim 2, characterized in that, The workpiece flipping device also includes a turntable bearing (122), which includes a shaft ring (1221) and a seat ring (1222). The shaft ring (1221) is rotatably connected to the seat ring (1222). The seat ring (1222) is fixedly connected to the mounting base (100), and the shaft ring (1221) is fixedly connected to the worm gear (510).

4. The workpiece flipping device according to claim 2, characterized in that, The mounting base (100) includes a support plate (110) and a first housing (120). The first housing (120) is connected to the support plate (110) and can reciprocate in the vertical direction. The first transmission assembly (500) is connected to the interior of the first housing (120).

5. The workpiece flipping device according to claim 4, characterized in that, The workpiece flipping device further includes a lifting drive assembly. The fixed end of the lifting drive assembly is fixedly connected to the mounting base (100), and the output end of the lifting drive assembly is fixedly connected to the first housing (120). The lifting drive assembly is used to drive the first housing (120) to reciprocate in the vertical direction.

6. The workpiece flipping device according to claim 4, characterized in that, The support plate (110) is provided with sliding grooves on both sides, and the first housing (120) is provided with pulleys on both sides respectively. The pulleys are rotatably connected to the first housing (120), and the pulleys are disposed inside the sliding grooves and are rolledly connected to the inner wall of the sliding grooves.

7. The workpiece flipping device according to claim 4, characterized in that, The inner wall of the first housing (120) is connected to a support member (121), and the worm gear (520) passes through the support member (121) and is rotatable relative to the support member (121).

8. The workpiece flipping device according to claim 2, characterized in that, The workpiece flipping device further includes a second transmission assembly (600), which includes a driving gear (610) and a driven gear (620) that are connected in transmission. The driving gear (610) is connected to the rotation drive assembly (400), and the driven gear (620) is fixedly connected to the worm gear (520).

9. The workpiece flipping device according to claim 2, characterized in that, The turntable (300) includes a first turntable (310) and a second turntable (320) connected to each other. The first turntable (310) is provided with a positioning groove (311), and the second turntable (320) is provided with a positioning protrusion (321). The positioning groove (311) and the positioning protrusion (321) are inserted into each other. The first turntable (310) is connected to the worm gear (510), and the second turntable (320) is connected to the fixing part (210).

10. The workpiece flipping device according to any one of claims 1-9, characterized in that, The clamping part (220) includes two jaws (221), which can move closer or further apart from each other. The side of the jaw (221) that is in contact with the workpiece (10) is provided with a flexible pad.

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