Cylindrical workpiece batch turnover mechanism and spraying device

Abstract

The invention belongs to the field of fastener machining, and particularly relates to a cylindrical workpiece batch turnover mechanism and spraying device.The turnover mechanism comprises a support structure, a plurality of rotating shafts and a transmission mechanism; the multiple rotating shafts are sequentially arranged on the support structure in an equidistant fixed-axis rotating mode, each rotating shaft is provided with at least two rotating wheels, and the rotating wheels on every two adjacent rotating shafts jointly support the corresponding cylindrical workpiece body. The transmission mechanism is used for transmitting power of the rotating power system to drive the multiple rotating shafts to rotate synchronously. The transmission mechanism drives the multiple rotating shafts to rotate synchronously, the multiple cylindrical workpiece bodies are driven to rotate in situ, the needed overturning space is much small, the rotating angles of the cylindrical workpiece bodies can be controlled through the rotating angles of the rotating shafts, and therefore the high working efficiency and the low error are achieved; and synchronous rotation of the multiple cylindrical workpiece bodies is achieved, the uniformity of surface spraying treatment is guaranteed, and it is guaranteed that the surfaces of the cylindrical workpiece bodies are completely sprayed.

Description

Technical Field

[0001] This application belongs to the field of fastener processing, and specifically relates to a batch turning mechanism and a spraying device for cylindrical workpieces. Background Art

[0002] A stud is a kind of fastener in the shape of a cylinder, with threads provided at both ends, and a reduced diameter for reducing the fatigue strength of the part is provided in the middle rod part. To improve the surface anti-corrosion ability of the stud, surface treatments including but not limited to Dacromet, hot-dip galvanizing, paint, etc. are carried out on the surface of the workpiece. The cylindrical workpiece (stud) needs to be turned during surface treatment to ensure that the entire surface of the stud is treated. Conventionally, it often requires manual turning of the cylindrical workpiece, which has problems of low efficiency and large turning angle errors.

[0003] Most of the existing turning devices can only turn one workpiece at a time, and it is difficult to achieve the purpose of batch turning of workpieces. Some devices that can batch turn workpieces clamp both ends of the workpiece and turn multiple workpieces as a whole, and have the following deficiencies: 1. Clamping both ends of the workpiece will cause the end surfaces of the cylindrical workpiece not to be treated, which is not suitable for the turning of cylindrical workpieces; 2. When turning as a whole, multiple cylindrical workpieces will be in different horizontal directions. Only when turning 180°, multiple cylindrical workpieces are in the same horizontal direction, but this will cause problems of uneven spraying, and the number of cylindrical workpieces that can be set in the overall turning mechanism is limited. Otherwise, for a long overall length, a large turning space is required, which is not suitable for spray surface treatment of batch cylindrical workpieces. Summary of the Invention

[0004] The technical problem to be solved by this application is to provide a batch turning mechanism and a spraying device for cylindrical workpieces, which can batch turn cylindrical workpieces, and all cylindrical workpieces are in the same horizontal direction at any angle, improving the efficiency of batch turning of cylindrical workpieces and ensuring uniform spraying.

[0005] In a first aspect, this application provides a batch turning mechanism for cylindrical workpieces, including: A support structure; Multiple rotating shafts are fixedly arranged on the support structure at equal intervals in sequence and rotate around a fixed axis. At least two rotating wheels are arranged on each rotating shaft, and the rotating wheels on two adjacent rotating shafts jointly support the corresponding cylindrical workpiece body; A transmission mechanism for transmitting the power of the rotational power system to drive the multiple rotating shafts to rotate synchronously.

[0006] Optionally, the transmission mechanism includes a worm assembly arranged along the distribution direction of the plurality of rotating shafts, and a plurality of turbines respectively sleeved on the plurality of rotating shafts. The worm assembly meshes with the plurality of turbines, and the worm assembly is in transmission connection with the rotational power system.

[0007] Optionally, the worm assembly includes a transmission shaft fixedly arranged on the bracket structure for rotation about a fixed axis, and a plurality of worm sleeves fixedly sleeved on the transmission shaft. Each worm sleeve meshes with a corresponding turbine.

[0008] Optionally, one end of the transmission shaft is provided with a connector for transmission connection with the rotational power system.

[0009] Optionally, the reduction ratio of the worm sleeve to the turbine is 5:1 to 60:1.

[0010] Optionally, both ends of the worm sleeve are fixed to the transmission shaft by screws.

[0011] Optionally, the runner is fixed to the rotating shaft by screws, so as to adjust the position of the runner along the rotating shaft to adapt to cylindrical workpiece bodies of different lengths.

[0012] Optionally, the distance between two adjacent runners on two adjacent rotating shafts is 12 mm to 110 mm.

[0013] Optionally, the bracket structure includes a base, two support plates respectively arranged on both sides of the base, and two supports respectively arranged at both ends of the base. Both ends of the plurality of rotating shafts are fixedly arranged on the two support plates for rotation about a fixed axis, and both ends of the worm assembly are fixedly arranged on the two supports for rotation about a fixed axis.

[0014] Optionally, lifting lugs are arranged at both ends of the base.

[0015] Optionally, a protective cover is arranged on one side of the base for covering the transmission mechanism.

[0016] In a second aspect, the present application provides a spraying device for a cylindrical workpiece, including a rotational power system and the above-mentioned cylindrical workpiece batch turnover mechanism. The rotational power system is in transmission connection with the transmission mechanism in the cylindrical workpiece batch turnover mechanism.

[0017] The beneficial effects of the present application are: The cylindrical workpiece batch flipping mechanism provided in the first aspect of the present application drives multiple rotating shafts to rotate synchronously through a transmission mechanism, so that multiple cylindrical workpiece bodies placed between the multiple rotating shafts are driven to rotate in place, requiring much less flipping space. The rotation angle of the cylindrical workpiece body can be controlled by the rotation angle of the rotating shaft, thus having a high working efficiency, low error, and enabling multiple cylindrical workpiece bodies to rotate a certain angle multiple times, ensuring the uniformity of surface spraying treatment. And no matter how the cylindrical workpiece body rotates, its upward surface and end are completely exposed, ensuring that the surface of the cylindrical workpiece body is completely sprayed and treated.

[0018] The cylindrical workpiece spraying device provided in the second aspect of the present application drives multiple cylindrical workpiece bodies placed on the flipping mechanism through a rotating power system, performing more precise, reliable, and efficient flipping, which helps to improve the working efficiency and the quality of workpiece surface treatment. Brief Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of the cylindrical workpiece batch flipping mechanism provided in the embodiment of the present application; Figure 2 is Figure 1 the enlarged view of area A in Figure 3 is a schematic structural diagram of the assembly of the rotating shaft and the runner provided in the embodiment of the present application; Figure 4 is a schematic structural diagram of the transmission mechanism provided in the embodiment of the present application.

[0020] In the figure: 1.1, cylindrical workpiece body; 100, support structure; 110, base; 120, support plate; 130, support; 140, lifting lug; 150, protective cover; 200, rotating shaft; 210, runner; 300, transmission mechanism; 310, worm assembly; 311, transmission shaft; 312, worm sleeve; 313, connector; 320, turbine. Detailed Description of the Embodiment

[0021] In order to make the technical problems, technical solutions, and beneficial effects to be solved by the present application clearer and more understandable, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0022] As Figures 1 to 4As shown, a cylindrical workpiece batch turning mechanism provided in the first aspect of the present application comprises: a support structure 100, a plurality of rotating shafts 200 and a transmission mechanism 300; wherein, the plurality of rotating shafts 200 are equidistantly and axially rotatably arranged on the support structure 100 in sequence, and each rotating shaft 200 is provided with at least two rotating wheels 210, and the rotating wheels 210 on two adjacent rotating shafts 200 jointly support the corresponding cylindrical workpiece body 1.1; the transmission mechanism 300 is used to transmit the power of the rotating power system to drive the plurality of rotating shafts 200 to rotate synchronously.

[0023] Compared with the prior art, the cylindrical workpiece batch flipping mechanism provided in the present application drives multiple rotating shafts 200 to rotate synchronously through a transmission mechanism 300, so that multiple cylindrical workpiece bodies 1.1 placed between the multiple rotating shafts 200 are driven to rotate in situ, and the required flipping space is much smaller. The rotation angle of the cylindrical workpiece body 1.1 can be controlled by the rotation angle of the rotating shaft 200, so as to have higher working efficiency and lower error, and realize that multiple cylindrical workpiece bodies 1.1 can be rotated a certain angle multiple times to ensure the uniformity of the surface spraying treatment, and no matter how the cylindrical workpiece body 1.1 rotates, its upward surface and end are completely exposed, ensuring that the surface of the cylindrical workpiece body 1.1 is completely sprayed.

[0024] It should be noted that the cylindrical workpiece body 1.1 includes a double-headed stud, a single-headed stud and a screw sleeve, and the flipping mechanism provided in this embodiment can also be used for surface spraying of the bolt. Here, the flipping of the cylindrical workpiece body 1.1 refers to the rotation around the axis of the cylindrical workpiece body 1.1 itself. The rotation power system can be a pneumatic wrench, an electric wrench, a servo motor, a stepper motor or a reduction motor.

[0025] In a possible implementation, the transmission mechanism 300 includes a worm assembly 310 arranged along the distribution direction of multiple rotating shafts 200, and multiple turbines 320 respectively sleeved on the multiple rotating shafts 200, the worm assembly 310 meshes with the multiple turbines 320, and the worm assembly 310 is connected to the rotating power system. Specifically, the axis of the worm assembly 310 is staggered with the axis of the rotating shaft 200 by 90° (vertical but not intersecting), each turbine 320 is interference fit or clearance fit with the end of the corresponding rotating shaft 200 and fixed by screws, each turbine 320 is meshed with the worm assembly 310, and the worm assembly 310 is driven to rotate under the action of the rotating power system, thereby driving all the turbines 320 and the rotating shaft 200 to rotate, so that the cylindrical workpiece body 1.1 set in the flipping mechanism is flipped synchronously. The present application adopts a transmission mechanism 300 in which the worm assembly 310 cooperates with multiple turbines 320, which has the advantages of high precision, high stability, and fast response, and is conducive to improving the consistency of the flip angle of multiple cylindrical workpiece bodies 1.1 each time.

[0026] In another possible implementation, the transmission mechanism 300 includes a transmission chain and a plurality of sprockets. The plurality of sprockets are respectively sleeved on the ends of the corresponding rotating shafts 200. The transmission chain meshes with the plurality of sprockets. One of the sprockets is a driving sprocket, which is directly driven by the rotating power system. The rotation of the remaining sprockets is driven through the transmission of the transmission chain, thereby driving the rotation of the rotating shafts 200 and the cylindrical workpiece body 1.1. To a certain extent, the batch flipping of the cylindrical workpiece body 1.1 can also be achieved. However, after a long time of use, the transmission chain becomes loose, which may cause obvious rotational errors between the rotating shafts 200. Moreover, since the transmission mechanism 300 is a flexible transmission, it itself has a large transmission error, resulting in a poor consistency of the flipping angles of the plurality of cylindrical workpiece bodies 1.1. Therefore, it is necessary to regularly correct the tightness of the transmission chain, which increases the complexity of use and affects the working efficiency to a certain extent.

[0027] In another possible implementation, the transmission mechanism 300 includes a timing belt and a plurality of timing belt pulleys. The plurality of timing belt pulleys are respectively sleeved on the ends of the corresponding rotating shafts 200. The timing belt meshes with the plurality of timing belt pulleys. One of the timing belt pulleys is a driving pulley, which is directly driven by the rotating power system. The rotation of the remaining timing belt pulleys is driven through the transmission of the timing belt, thereby driving the rotation of the rotating shafts 200 and the cylindrical workpiece body 1.1. To a certain extent, the batch flipping of the cylindrical workpiece body 1.1 can also be achieved. However, after a long time of use, the transmission chain becomes loose, and there are problems similar to those of the transmission mechanism 300 composed of the transmission chain and the plurality of sprockets.

[0028] In a possible implementation, the worm assembly 310 includes a transmission shaft 311 that is fixedly arranged on the support structure 100 for rotation about a fixed axis, and a plurality of worm sleeves 312 that are fixedly sleeved on the transmission shaft 311. Each worm sleeve 312 meshes with a corresponding turbine 320. Specifically, the worm sleeve 312 has threads machined on the outer surface of the cylindrical barrel. In this way, the plurality of worm sleeves 312 can adjust their installation positions on the transmission shaft 311 according to the spacing between adjacent rotating shafts 200, thereby reducing the requirements for machining accuracy of the single worm formed by the overall worm assembly 310 and the resulting machining errors, and can adapt to the flipping of cylindrical workpiece bodies 1.1 with different diameters (the diameters of cylindrical workpieces of different specifications are different, and the spacing between adjacent rotating shafts 200 may also be different), expanding the adaptability of the flipping mechanism, which is an effect that is difficult to achieve by the transmission mechanism 300 composed of a transmission chain and a plurality of sprockets or the transmission mechanism 300 composed of a synchronous belt and a plurality of synchronous belt pulleys. The transmission shaft 311 and the support structure 100 can be in clearance fit, and the transmission shaft 311 can rotate freely in the support structure 100. The support 130 mainly plays a role in supporting and positioning the transmission shaft 311. In this cooperation mode, there is a certain radial clearance between the transmission shaft 311 and the support 130, enabling the transmission shaft 311 to rotate flexibly. The transmission shaft 311 can also be installed in a bearing (not shown in the figure), and the bearing is then installed in the support structure 100. The bearing can be a rolling bearing or a sliding bearing, which can effectively reduce the friction and wear between the transmission shaft 311 and the support structure 100, improve the transmission efficiency; can achieve high-precision rotational motion, ensure the smoothness and reliability of the transmission; and can withstand different loads, including radial loads, axial loads, and combined loads, with strong adaptability.

[0029] In a possible implementation, both ends of the worm sleeve 312 are fixed to the transmission shaft 311 by screws. Specifically, both ends of the worm sleeve 312 are smooth surfaces and have screw holes for screwing in screws. After the worm sleeve 312 is properly matched with the corresponding turbine 320, the screws at both ends are tightened in sequence to fix the worm sleeve 312 on the transmission shaft 311. In this way, it is convenient to adjust the position during the assembly of the worm sleeve 312 and the transmission shaft 311, improve the matching speed of the worm sleeve 312 and the corresponding turbine 320, and is beneficial to improving the consistency of the rotation angles of the plurality of cylindrical workpiece bodies 1.1 driven.

[0030] In a possible implementation, one end of the transmission shaft 311 is provided with a connector 313 for drivingly connecting to the rotational power system. Specifically, one end of the connector 313 has a centering hole for sleeving on the end of the transmission shaft 311 and being fastened by screws, and the other end of the connector 313 has an internal hexagonal hole for docking with the output shaft of the rotational power system.

[0031] In a possible implementation, the reduction ratio of the worm sleeve 312 to the turbine 320 is 5:1 to 60:1. Exemplarily, the reduction ratio of the worm sleeve 312 to the turbine 320 can be any typical but non-limiting point value such as 5:1, 10:1, 15:1, 20:1, 25:1, 30:1, 40:1, 50:1, 60:1 or an interval value between any two point values.

[0032] In a possible implementation, the runner 210 and the rotating shaft 200 are fixed by screws, and are used to adjust the position of the runner 210 along the rotating shaft 200 to adapt to cylindrical workpiece bodies 1.1 of different lengths. Specifically, two runners 210 are sleeved on each rotating shaft 200, and the distance between the two runners 210 is determined according to the length of the cylindrical workpiece body 1.1, so that the two runners 210 are respectively in contact with the parts near both ends of the cylindrical workpiece body 1.1; the runners 210 on two adjacent rotating shafts 200 are symmetrically arranged to jointly support the cylindrical workpiece body 1.1.

[0033] In a possible implementation, runners 210 with various outer diameter specifications are provided, so that the appropriate corresponding specification of runner 210 can be selected according to the diameter of the cylindrical workpiece body 1.1. Thus, only by replacing the runner 210 of the corresponding specification can the flipping of cylindrical workpiece bodies 1.1 of various specifications be realized.

[0034] In a possible implementation, the distance between two adjacent runners 210 on two adjacent rotating shafts 200 is 12 mm to 110 mm. Exemplarily, the distance between two adjacent runners 210 on two adjacent rotating shafts 200 can be any typical but non-limiting point value such as 12 mm, 15 mm, 20 mm, 30 mm, 40 mm, 50 mm, 60 mm, 70 mm, 80 mm, 90 mm, 100 mm, 110 mm or an interval value between any two point values. In this case, cylindrical workpiece bodies 1.1 of different specifications can be adapted.

[0035] In a possible implementation, the bracket structure 100 includes a base 110, two support plates 120 respectively disposed on both sides of the base 110, and two supports 130 respectively disposed at both ends of the base 110. Both ends of a plurality of rotating shafts 200 are rotatably mounted on the two support plates 120, and both ends of the worm assembly 310 are rotatably mounted on the two supports 130. Specifically, the base 110 is in the shape of a rectangular plate and is used to be fixed on the corresponding carrier to fix the cylindrical workpiece batch turnover mechanism. The two support plates 120 can be right-angled plates and are fixed to the top of the base 110 by bolts or welding. There are a plurality of mounting holes on the two support plates 120 for arranging the rotating shafts 200. Among them, both ends of the rotating shafts 200 can be respectively installed in two bearings (not shown in the figure), and the two bearings are respectively installed in the mounting holes of the two support plates 120. The bearings can be rolling bearings or sliding bearings, which can effectively reduce the friction and wear between the transmission shaft 311 and the bracket structure 100, improve the transmission efficiency; can achieve high-precision rotational motion, ensure the smoothness and reliability of the transmission; can withstand different loads, including radial loads, axial loads and combined loads, and has strong adaptability. The two supports 130 are fixed to both ends of the base 110 by bolts or welding. Among them, both ends of the transmission shaft 311 can be respectively installed in two bearings (not shown in the figure), and the two bearings are respectively installed in the two support plates 120.

[0036] In a possible implementation, lifting lugs 140 are provided at both ends of the base 110. Specifically, a total of four lifting lugs 140 are provided at both ends of the base 110. The lifting lugs 140 are fixed to both ends of the base 110 by bolts or welding. The four lifting lugs 140 are distributed in a rectangular array for the lifting of the turnover mechanism.

[0037] In a possible implementation, a protective cover 150 is provided on one side of the base 110 for covering the transmission mechanism 300. Specifically, the cross-sectional shape of the protective cover 150 is L-shaped or U-shaped and is fixed to the bracket structure 100 by screws to prevent paint from falling on the transmission mechanism 300.

[0038] In the second aspect of the present application, a spraying device for cylindrical workpieces is provided, which includes a rotational power system and a cylindrical workpiece batch turnover mechanism. The rotational power system is in transmission connection with the transmission mechanism 300 in the cylindrical workpiece batch turnover mechanism.

[0039] The cylindrical workpiece spraying device provided by the present application drives a plurality of cylindrical workpiece bodies 1.1 placed on the turnover mechanism through the rotational power system to perform more accurate, reliable and efficient turnover, which helps to improve work efficiency and the quality of workpiece surface treatment.

[0040] It should be noted that the rotational power system can be a pneumatic wrench, an electric wrench, a servo motor, a stepper motor or a reduction motor.

[0041] A method for using a spraying device for cylindrical workpieces, comprising the following steps: Place the cleaned screw body one by one on the flipping mechanism by a manipulator or manually; the rotating wheels 210 provided on the flipping mechanism are arranged in pairs, contact the outer surface of the screw body, and form a support for the screw body; after the flipping mechanism is filled with screw bodies, the spray gun evenly sprays the upper surface of the workpiece; after the spraying of the upper surface is completed, connect the connecting head 313 at the end of the transmission shaft 311 of the output shaft of the rotating power system, and the rotating power system rotates to drive the transmission shaft 311 of the flipping mechanism to rotate. The worm gear sleeve 312 provided on the transmission shaft 311 and the worm wheel provided on the rotating shaft 200 transmit the driving force of the transmission shaft 311 to the rotating shaft 200, driving the rotating wheels 210 provided on the rotating shaft 200 to rotate, and further driving the cylindrical workpiece body 1.1 to rotate; the rotating power system rotates a certain number of turns under the control of a pre-set program, so that the cylindrical workpiece body 1.1 rotates 180°, and the spray gun evenly sprays the surface of the cylindrical workpiece body 1.1.

[0042] Another method for using a spraying device for cylindrical workpieces, comprising the following steps: Place the cleaned screw body one by one on the flipping mechanism by a manipulator or manually; the rotating wheels 210 provided on the flipping mechanism are arranged in pairs, contact the outer surface of the screw body, and form a support for the screw body; after the flipping mechanism is filled with screw bodies, the whole is transferred to the spraying area 1, and the spray gun in the spraying area 1 evenly sprays the upper surface of the workpiece; after the spraying of the upper surface is completed, the flipping mechanism flows to the flipping area driven by the transmission device; after the flipping mechanism reaches the positioning point in the flipping area, the transmission device stops moving, and the rotating power system (which can be a servo motor, a stepping motor or a reduction motor) is connected to the connecting head 313 at the end of the transmission shaft 311 of the flipping mechanism under the movement of the propulsion device; the rotating power system rotates to drive the transmission shaft 311 of the flipping mechanism to rotate; the worm gear sleeve 312 provided on the transmission shaft 311 and the worm wheel provided on the rotating shaft 200 transmit the driving force of the transmission shaft 311 to the rotating shaft 200; drive the rotating wheels 210 provided on the rotating shaft 200 to rotate, and further drive the cylindrical workpiece body 1.1 to rotate; the rotating power system rotates a certain number of turns under the control of a pre-set program, so that the cylindrical workpiece body 1.1 rotates 180°, and the already sprayed upper surface is rotated to the downward position; the rotating power system is disengaged from the rotary spraying device; the transmission device transports the rotary spraying device to the spraying area 2, and the spray gun provided in the spraying area 2 evenly sprays the surface of the cylindrical workpiece body 1.1.

[0043] It should be noted that three or more spraying areas can also be set, and the cylindrical workpiece body 1.1 rotates three times or more times to uniformly spray the surface of the cylindrical workpiece body 1.1. The transmission device and the rotary spraying device are the equipment of the existing fastener spraying room.

[0044] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is exemplary only and is not intended to imply that the scope of protection of this application is limited to these examples; under the concept of this application, the technical features in the above embodiments or different embodiments can also be combined, and the steps can be implemented in any order, and there are many other variations in different aspects of one or more embodiments of this application as described above, and they are not provided in detail for the sake of brevity.

[0045] One or more embodiments of this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of this application shall be included within the scope of protection of this application.

Claims

1. A batch turning mechanism for cylindrical workpieces, characterized in that, Comprising: A bracket structure (100); A plurality of rotating shafts (200), which are arranged in sequence at equal intervals and rotate about a fixed axis on the bracket structure (100). At least two runners (210) are arranged on each rotating shaft (200), and the runners (210) on two adjacent rotating shafts (200) jointly support the corresponding cylindrical workpiece body (1.1); A transmission mechanism (300) for transmitting the power of the rotational power system to drive the plurality of rotating shafts (200) to rotate synchronously.

2. The cylindrical workpiece batch flipping mechanism according to claim 1, wherein, The transmission mechanism (300) includes a worm assembly (310) arranged along the distribution direction of the plurality of rotating shafts (200), and a plurality of turbines (320) respectively sleeved on the plurality of rotating shafts (200). The worm assembly (310) meshes with the plurality of turbines (320), and the worm assembly (310) is in transmission connection with the rotational power system.

3. The cylindrical workpiece batch turning mechanism according to claim 2, characterized in that, The worm assembly (310) includes a transmission shaft (311) rotatably arranged about a fixed axis on the bracket structure (100), and a plurality of worm sleeves (312) fixedly sleeved on the transmission shaft (311). Each worm sleeve (312) meshes with the corresponding turbine (320).

4. The cylindrical workpiece batch turning mechanism according to claim 3, characterized in that, One end of the transmission shaft (311) is provided with a connection head (313) for transmission connection with the rotational power system.

5. The cylindrical workpiece batch turning mechanism according to claim 4, characterized in that, The reduction ratio of the worm sleeve (312) to the turbine (320) is 5:1 to 60:

1.

6. The cylindrical workpiece batch flipping mechanism according to claim 5, characterized in that, Both ends of the worm sleeve (312) are fixed to the transmission shaft (311) by screws.

7. The cylindrical workpiece batch turning mechanism according to any one of claims 1 to 6, characterized in that, The runner (210) is fixed to the rotating shaft (200) by screws, and is used to adjust the position of the runner (210) along the rotating shaft (200) to adapt to cylindrical workpiece bodies (1.1) of different lengths; And / or, the distance between two adjacent runners (210) on two adjacent rotating shafts (200) is 12 mm to 110 mm.

8. The cylindrical workpiece batch flipping mechanism according to any one of claims 2 to 6, characterized in that, The bracket structure (100) includes a base (110), two support plates (120) respectively arranged on both sides of the base (110), and two supports (130) respectively arranged at both ends of the base (110). Both ends of the plurality of rotating shafts (200) are rotatably arranged about a fixed axis on the two support plates (120), and both ends of the worm assembly (310) are rotatably arranged about a fixed axis on the two supports (130).

9. The cylindrical workpiece batch turning mechanism according to claim 8, characterized in that, Lifting lugs (140) are arranged at both ends of the base (110); And / or, a protective cover (150) is arranged on one side of the base (110) for covering the transmission mechanism (300).

10. A spraying device for cylindrical workpieces, characterized in that, Comprising a rotational power system and a cylindrical workpiece batch turnover mechanism as recited in any one of claims 1 to 9, wherein the rotational power system is in transmission connection with the transmission mechanism (300) in the cylindrical workpiece batch turnover mechanism.

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