A multi-station self-rotation mechanism with adjustable angle of a paint dripping station

Abstract

The present application belongs to the technical field of chain type continuous paint dripping machine equipment, and specifically discloses a multi-station self-rotation mechanism with adjustable paint dripping station angle, which comprises a base and a lifting device arranged on the base, wherein the lifting device comprises at least one pair of left-right symmetrical lifting assemblies, the upper end of each lifting assembly is provided with a rotating support, and each rotating support is provided with a self-rotation station assembly; each pair of self-rotation station assemblies are connected through a self-rotation gravity rod to form a double-joint structure, and each self-rotation station assembly can rotate around the connecting joint with the self-rotation gravity rod; a supporting platform is arranged below the self-rotation gravity rod to support the self-rotation gravity rod. The present application can realize uniform paint dripping and improve the paint dripping work efficiency.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of chain type continuous paint dripping machine equipment, and more particularly to a multi-station self-rotation mechanism with adjustable paint dripping station angle. BACKGROUND

[0002] The rapid development of the new energy vehicle industry promotes the development of vehicle drive motor technology in the direction of miniaturization, high power density and large scale. With the continuous narrowing of the winding gap and the continuous improvement of the slot fill rate of new energy vehicle drive motors, the curing rate, production efficiency and energy consumption control of motor winding insulation have posed severe challenges. The commonly used winding dipping and dripping insulation processes all have defects such as low production efficiency, high bubble content and low thermal efficiency, which have seriously hindered the development of drive motor technology. Therefore, it is necessary to optimize and improve the existing dripping process as soon as possible, promote the development of dripping insulation technology equipment towards high-end and specialization, and urgently need to design a dripping station mechanism that can realize uniform dripping and improve the efficiency of dripping work. SUMMARY

[0003] In view of the defects of the prior art, the purpose of the present application is to provide a multi-station self-rotation mechanism with adjustable paint dripping station angle to solve the problems of low production efficiency and uneven dripping of the existing dripping process.

[0004] To achieve the above-mentioned purpose, the present application provides a multi-station self-rotation mechanism with adjustable paint dripping station angle, comprising a base and a lifting device arranged on the base, wherein:

[0005] The lifting device comprises at least one pair of left-right symmetrical lifting assemblies, wherein the upper end of each lifting assembly is provided with a rotating support, and the rotating support is provided with a self-rotation station assembly; each pair of self-rotation station assemblies are connected by a self-rotation gravity rod to form a double-joint structure, and each self-rotation station assembly can rotate around the connection joint with the self-rotation gravity rod as the center; a supporting platform is arranged below the self-rotation gravity rod for supporting the self-rotation gravity rod;

[0006] During dripping, the lifting assembly can drive the self-rotation station assembly to rise synchronously, and the rotating support rotates to one side of the self-rotation gravity rod under the action of the gravity of the self-rotation gravity rod, thereby making the self-rotation station assembly relative to the horizontal plane in an inclined state; when the lifting assembly drives the self-rotation station assembly to descend synchronously, the rotating support rotates away from the self-rotation gravity rod, thereby making the self-rotation station assembly into a horizontal state.

[0007] Further, the outer end of the self-rotation station assembly is provided with a workpiece mounting portion, and the machining workpiece mounted on the workpiece mounting portion can rotate around the central axis of the self-rotation station assembly in the inclined state and the horizontal state.

[0008] Further, the self-rotation work station assembly is internally provided with a first rotating shaft, and the workpiece mounting portion is arranged at the outer end of the first rotating shaft; the self-rotation gravity rod is internally provided with a second rotating shaft, and the end of the second rotating shaft is connected with the inner end of the first rotating shaft; the middle part of the second rotating shaft is provided with a driving assembly, which is used for driving the second rotating shaft to rotate, so as to drive the first rotating shaft at both ends to drive the workpiece mounting portion to rotate.

[0009] Further, the driving assembly comprises a self-rotation gear and a transmission chain assembly, the self-rotation gear is sleeved on the second rotating shaft, and the lower part of the self-rotation gear protrudes from the rod body of the self-rotation gravity rod; the transmission chain assembly is arranged on the support platform and is engaged with the self-rotation gear, and when the transmission chain assembly moves in the front-rear direction, the self-rotation gear can be driven to rotate the second rotating shaft in the front-rear direction, so as to drive the first rotating shaft to rotate the workpiece mounting portion.

[0010] Further, the transmission chain assembly comprises at least three parallel transmission chains, the middle transmission chain is engaged with the self-rotation gear, and the transmission chains on both sides are used for conveying and placing the self-rotation work station assembly on the lifting assembly.

[0011] Further, the rotation support and the upper end of the lifting assembly are further connected through an elastic member, and the elastic member is used for limiting the rotation angle of the rotation support.

[0012] Further, the self-rotation work station assembly further comprises a support, the upper end of the support is fixed on the body of the self-rotation work station assembly, and the lower end of the support is fixed on the rotation support, and the support is used for separating the self-rotation work station assembly and the rotation support by a certain distance, so as to avoid the rotation support from contacting the self-rotation work station assembly when the rotation support rotates.

[0013] Further, the rotation angle of the rotation support is 0°-45°.

[0014] Further, each group of the lifting assembly comprises a driving motor and a lifting guide rod arranged above the driving motor, the driving motor can drive the lifting guide rod to ascend and descend when the driving motor rotates, and the transmission shaft is arranged between the two groups of symmetrical lifting assemblies, the two ends of the transmission shaft are respectively connected with the output shafts of the driving motors on the corresponding sides, so that the driving motors rotate in the same direction, and then drive the lifting guide rods to ascend and descend synchronously.

[0015] Further, the transmission shaft is sleeved with gears at two ends close to the driving motor; the lifting guide rod is provided with a rack structure, and the gears are in meshing connection with the rack structure; when the driving motor drives the transmission shaft to rotate, the gears rotate synchronously, thereby driving the rack structure to drive the lifting guide rod to lift up and down.

[0016] Compared with the prior art, the above technical scheme of the present application mainly has the following advantages:

[0017] 1. The paint dripping station angle-adjustable multi-station self-rotation mechanism of the present application is provided with a combination structure of a lifting assembly and a self-rotation gravity rod, so that the self-rotation station assembly arranged on the rotating support is inclined inward with the rotating support under the action of the gravity of the self-rotation gravity rod, thereby adjusting the angle of the processed workpiece on the self-rotation station assembly within a certain range, facilitating uniform coverage and penetration of the paint during paint dripping and improving the paint dripping quality; and since the self-rotation station assembly is placed on the lifting assembly and the two are not fixedly connected, the self-rotation station assembly can be quickly replaced after paint dripping to perform paint dripping, thereby improving the paint dripping efficiency.

[0018] 2. The multi-station self-rotation mechanism of the present application keeps the processed workpiece rotating in an inclined state and a horizontal state at all times, further improving the paint dripping efficiency; specifically, a first rotating shaft is arranged inside the self-rotation station assembly, a second rotating shaft is arranged in the self-rotation gravity rod and connected with the ends of the first rotating shaft, respectively, and when the driving assembly drives the second rotating shaft to rotate, the first rotating shafts at the two ends of the second rotating shaft drive the workpiece mounting part to rotate the processed workpiece, thereby realizing the efficient working state of rotating while dripping.

[0019] 3. The lifting assemblies in the multi-station self-rotation mechanism of the present application can synchronously and uniformly lift up and down, and the corresponding stations are symmetrically designed, so as to improve the problem that the overall mechanism is relatively weaker in strength and unstable in the whole body due to unilateral station rotation or lifting, thereby affecting the paint dripping efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a lower overall structure schematic view of a paint dripping station angle-adjustable multi-station self-rotation mechanism provided by the embodiment of the present application;

[0021] Figure 2 is a pair of self-rotation station assembly structure schematic views of a paint dripping station angle-adjustable multi-station self-rotation mechanism provided by the embodiment of the present application;

[0022] Figure 3 is an overall structure schematic view of a paint dripping station angle-adjustable multi-station self-rotation mechanism provided by the embodiment of the present application;

[0023] Figure 4Figure is a partial assembly schematic view of the chain assembly and the self-rotation station assembly structure provided by the embodiment of the present application.

[0024] In the figure: 1-base, 2-workpiece mounting part, 3-supporting plate, 4-rotary support, 5-elastic member, 6-supporting member, 7-self-rotation gravity rod, 8-first rotation shaft, 9-second rotation shaft, 10-self-rotation gear, 11-driving motor, 12-transmission shaft, 13-driving gear, 14-lifting guide rod, 15-rack structure, 16-universal joint, 17-connecting joint member, 18-processed workpiece, 19-supporting platform, 20-third rotation shaft, 21-switch, 22-long rod. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0026] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0027] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0028] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] To achieve the above-mentioned purpose, in combination with Figure 1As shown, the embodiment of the present application provides a multi-station self-rotation mechanism with adjustable angle of paint dripping station, comprising a base 1 and a lifting device arranged on the base 1, wherein:

[0030] The lifting device comprises at least one pair of left-right symmetrical lifting assemblies, wherein the upper end of the lifting assembly is provided with a rotating support 4, and the rotating support 4 is provided with a self-rotation station assembly; each pair of self-rotation station assemblies are connected through a self-rotation gravity rod 7 to form a double-joint structure, and the self-rotation station assemblies can rotate around the connecting joint with the self-rotation gravity rod 7; a support platform 19 for placing the self-rotation gravity rod 7 is further arranged below the self-rotation gravity rod 7;

[0031] During paint dripping, the aforementioned lifting assembly can drive the left and right self-rotation station assemblies to ascend synchronously, and the rotating support 4 rotates to one side of the self-rotation gravity rod 7 under the action of the gravity of the self-rotation gravity rod 7, thereby making the self-rotation station assembly relative to the horizontal plane in an inclined state, and the self-rotation gravity rod 7 is suspended between the two self-rotation station assemblies; when the lifting assembly drives the self-rotation station assemblies to descend synchronously, the rotating support 4 rotates away from the side of the self-rotation gravity rod 7, the self-rotation gravity rod 7 gradually falls onto the support platform 19, and the lifting assembly keeps descending until the self-rotation station assembly and the self-rotation gravity rod 7 are in a horizontal state;

[0032] Specifically, the end of the aforementioned self-rotation station assembly is provided with a connecting joint piece 17, the connecting joint piece 17 and the end of the self-rotation gravity rod 7 are connected through a pin shaft structure to form a movable double-joint structure; in other preferred embodiments, other connecting structures that can make the self-rotation station assembly and the self-rotation gravity rod 7 relatively rotate to form an included angle can also be used for connection;

[0033] The aforementioned support platform 19 can be a frame platform vertically arranged between the symmetrical lifting assemblies, and the lifting assemblies are fixed on the side edges of the support platform 19; the support platform 19 can also be only a flat plate, and the left and right side edges of the flat plate are fixedly connected with the outer shell of the lifting assembly, so that the lifting parts in the lifting assembly ascend and descend relative to the support platform.

[0034] In the preferred embodiment, the self-rotation station assembly is provided with a workpiece mounting portion 2 at the outer end, and the machining workpiece mounted on the workpiece mounting portion 2 can rotate around the central axis of the self-rotation station assembly in the inclined state and the horizontal state;

[0035] Specifically, when the double-joint structure composed of the self-rotation station assembly and the self-rotation gravity rod 7 is in a straight line and a trapezoidal shape, the workpiece mounting portions 2 at both ends can rotate around the central axis to make the machining workpiece mounted on the workpiece mounting portion 2 also rotate, so that the paint dripping from above can be continuously and uniformly dripped on each surface of the machining workpiece.

[0036] In the preferred embodiment, the first rotating shaft 8 is arranged inside the self-rotating work station assembly, and the workpiece mounting portion 2 is arranged at the outer end of the first rotating shaft 8; the second rotating shaft 9 is arranged inside the self-rotating gravity rod 7, and the end of the second rotating shaft 9 is connected with the inner end of the first rotating shaft 8; the middle part of the second rotating shaft 9 is provided with a driving assembly, which is used to drive the second rotating shaft 9 to rotate, and then drive the workpiece mounting portion 2 to rotate the workpiece.

[0037] Specifically, the inner ends of the two first rotating shafts 8 at the two ends of the second rotating shaft 9 can be connected through universal joints 16, or can be connected through universal couplings and other components having the same effect as the universal joints 16, so that power transmission can be realized when there is an included angle between the second rotating shaft 9 and the first rotating shafts 8.

[0038] In the preferred embodiment, the driving assembly described above includes a self-rotating gear 10 and a transmission chain assembly. The self-rotating gear 10 is sleeved on the second rotating shaft 9, and the lower part of the rod body of the self-rotating gravity rod 7 has an opening. The lower part of the self-rotating gear 10 protrudes out of the opening of the rod body of the self-rotating gravity rod 7. The transmission chain assembly is arranged on the support platform 19 directly below the self-rotating gear and is engaged with the self-rotating gear 10. When the transmission chain assembly rotates in the front-rear direction, it can drive the self-rotating gear 10 to rotate the second rotating shaft 9 in the front-rear direction, and then drive the first rotating shaft 8 to rotate the workpiece mounting portion 2, thereby achieving the effect of rapid paint dripping.

[0039] In the preferred embodiment, the transmission chain assembly includes at least three parallel transmission chains. The middle transmission chain is engaged with the self-rotating gear 10, and the two side transmission chains are used to convey the self-rotating work station assembly to the upper side of the lifting assembly. The sizes of the two side transmission chain assemblies are different from that of the middle transmission chain assembly.

[0040] In the preferred embodiment, the elastic member 5 is further connected between the rotating support 4 and the upper end of the lifting assembly, and is used to limit the rotation angle of the rotating support 4.

[0041] Specifically, the elastic member 5 is a strong spring, and is fixed outside the rotating support 4 and the upper end of the lifting assembly. When the rotating support 4 rotates to a certain angle towards the inside of the overall mechanism, the elastic limit of the strong spring reaches the maximum, so that the rotating support 4 is pulled.

[0042] In the preferred embodiment, the self-rotating work station assembly further includes a support member 6, the upper end of which is fixed on the body of the self-rotating work station assembly, and the lower end of which is fixed on the rotating support 4. The support member 6 is used to separate the self-rotating work station assembly and the rotating support 4 by a certain distance, so as to avoid the contact between the rotating support 4 and the self-rotating work station assembly when the rotating support 4 rotates. The support member can be integrally formed with the self-rotating work station assembly or separately installed.

[0043] In the preferred embodiment, the rotation angle of the rotating support 4 is 0°-45°, for example, the rotating support 4 can be rotated to an angle of 10°, 15°, 20°, 25°, 30°, 35°, 40°, 45°, etc. with the horizontal plane, so as to ensure that the inclination angle of the self-rotation work station assembly is also within the angle range, so that the paint drops can normally fall on the processed workpiece and uniformly cover it.

[0044] In the preferred embodiment, each set of lifting assembly includes a driving motor 11 and a lifting guide rod 14 arranged above the driving motor 11, and the driving motor 11 can drive the lifting guide rod 14 to rise and fall when rotating. A transmission shaft 12 is arranged between the two sets of lifting assemblies arranged symmetrically, and the two ends of the transmission shaft 12 are respectively connected with the output shafts of the driving motors 11 on the corresponding sides, so that the driving motors 11 can rotate in the same direction or in the opposite direction, thereby driving the lifting guide rods 14 to rise and fall synchronously.

[0045] In the preferred embodiment, the transmission shaft 12 is sleeved with a driving gear 13 at both ends close to the driving motor 11; the lifting guide rod 14 is provided with a rack structure 15, the driving gear 13 is connected with the rack structure 15 in meshing, and a limiting structure is further arranged to prevent the gear 13 and the rack structure 15 from disengaging; when the driving motor 11 drives the transmission shaft 12 to rotate, the driving gear 13 rotates synchronously, thereby driving the rack structure 15 to drive the lifting guide rod 14 to rise and fall; in other embodiments, the rack structure 15 at this position can also be other gear sets that can mesh with the driving gear 13 to realize power transmission; in a more preferred embodiment, a Z-axis screw module or the like can also be used in the lifting assembly to transmit lifting power.

[0046] In order to better illustrate the implementation details of the present application, the following embodiments are provided to further illustrate the present application. It should be clear that the following embodiments are only the most preferred embodiments, and do not limit the protection scope of the present application in any way.

[0047] Embodiment 1

[0048] As shown in Figure 1 The lower jacking structure of the multi-station self-rotation mechanism with adjustable paint dripping station angle provided in the present embodiment is composed of four sets of lifting assemblies symmetrically arranged on the left and right, wherein:

[0049] The base 1 is a rectangular frame, and a pair of driving motors 11 are symmetrically arranged on the upper part of the left and right sides of the rectangular frame (only the driving motor on the right is shown in the figure), and the symmetric driving motors 11 are connected through a transmission shaft 12, and three pairs of supports for penetrating the transmission shaft 12 are symmetrically arranged on the base 1, so that the transmission shaft 12 is coaxial with the driving motor 11; a driving gear 13 is penetrated on the shaft body of the transmission shaft 12 between the support and the driving motor 11, and a lifting guide rod 14 is vertically arranged on the rear side of the driving gear 13; a support platform 19 is arranged above the transmission shaft 12, and a hole is formed on the both sides of the support platform 19 for the lifting guide rod 14 to penetrate; the top end of the lifting guide rod 14 is connected with a rotating support 4, and the rotating support 4 in the embodiment is a U-shaped support with an opening downward, and a third rotating shaft 20 is penetrated in the center of the side plates on the front and back sides of the rotating support 4 in the front and back directions, and a support plate 3 is arranged at the center of the top end of the lifting guide rod 14, a circular through hole is formed in the center of the support plate 3, and the third rotating shaft 20 is penetrated in the circular through hole, so that the rotating support 4 can rotate in the left and right directions around the third rotating shaft 20, that is, the symmetric rotating supports 4 can rotate and incline to the inside of the multi-station self-rotating mechanism; at the same time, an elastic member 5 is vertically arranged between the outside of the middle connecting plate of the rotating support 4 and the outside of the upper end of the lifting guide rod 4, which can generate a tension force on the rotating support 4, so as to avoid the rotating support from rotating and inclining to the inside beyond a limited angle.

[0050] As shown in Figure 2 , the self-rotating station assembly of the multi-station self-rotating mechanism provided by the embodiment is connected with a pair of self-rotating stations, wherein the two self-rotating station assemblies are multi-step columnar hollow long rods 22, and a connecting joint member 17 is arranged at the inner end of each long rod 22, and the connecting joint member 17 is connected with the two ends of the hollow self-rotating gravity rod 7 to form two rotating joints; a workpiece mounting part 2 is arranged at the outer end of each long rod 22 (a cylindrical machining workpiece 18 is fixedly arranged on the workpiece mounting part 2 on the left side in the figure);

[0051] A first rotating shaft 8 is arranged inside the self-rotating station assembly, and the workpiece mounting part 2 is arranged on the outer end of the first rotating shaft 8; a second rotating shaft 9 is arranged inside the self-rotating gravity rod 7, and the two ends of the second rotating shaft 9 are connected with the inner ends of the two first rotating shafts 8 through a universal joint 16; a self-rotating gear 10 is arranged on the middle part of the second rotating shaft 9, the self-rotating gear 10 is sleeved on the middle shaft body of the second rotating shaft 9, and the rod body of the self-rotating gravity rod 7 has an opening at the lower part, and the lower part of the self-rotating gear 10 protrudes out of the opening of the rod body of the self-rotating gravity rod 7;

[0052] A support member 6 is further sleeved on the outside of the middle part of the long rod, and the support member 6 is a bearing, and a shaft sleeve is further arranged on the outside of the bearing, and the outer surface of the shaft sleeve protrudes out of the long rod body by a certain width.

[0053] As shown in Figure 3As shown, the self-rotating mechanism of the multi-station paint dripping station according to the embodiment is provided with three pairs of self-rotating station assemblies, which are arranged on the rotating supports 4 at the upper ends of the three pairs of lifting assemblies, and the shaft sleeves at the lower sides are in contact with the upper surfaces of the rotating supports. The outer ends of the self-rotating station assemblies are all provided with workpieces 18, and the self-rotating gravity rods 7 are all arranged on the support platforms 19.

[0054] In combination Figure 4 As shown, when the paint is dripped, the transmission chain assembly is arranged above the support platform 19, the middle chain is engaged with the driving gear 13, and when the chain moves, the driving gear 13 rotates to rotate the first rotating shaft and the second rotating shaft, so as to rotate the workpieces 18 at the two ends. The chains at the two sides are used to convey a pair of self-rotating station assemblies in a horizontal state to the lifting assemblies that are not lifted, at this time, the position where the driving gear 13 is engaged with the rack structure 15 is at the uppermost end of the rack structure 15, and the elastic member 5 is in the shortest state. The number of self-rotating station assemblies that can be dripped at the same time is the same as the number of lifting assemblies, which is three pairs of six stations in this embodiment.

[0055] The working principle of the multi-station self-rotating mechanism according to the embodiment is as follows:

[0056] After the chain assembly is assembled and the workpieces 18 are conveyed to the corresponding lifting assemblies through the chain assembly, the servo motor (i.e., the driving motor 11) is started to rotate the transmission shaft 12 clockwise, the driving gear 13 rotates in the same direction, the rack structure 15 is pushed to move upward, the rotating support 4 also rises and pushes the long rod to start to incline, at this time, the upper panel of the rotating support 4 also inclines inward under the action of the gravity of the self-rotating gravity rod 7, the elastic member is deformed to start to stretch. When the workpiece mounting part is lifted to a certain angle, the servo motor is turned off, at this time, the rack structure 15 and the rotating support 4 are no longer in motion, and they have the same inclination angle. If the inclination angle is the maximum angle of 45°, the engagement position of the rack structure 15 and the driving gear 13 is the lowermost end of the rack structure, and the elastic member 5 is in the longest state. At this time, the middle transmission chain of the driving chain assembly starts to drive the self-rotating gear 10 to rotate, so as to drive the workpiece to start to rotate.

[0057] When the inclined state is changed to the horizontal state, the servo motor is started to rotate the transmission shaft 12 in the opposite direction, the lifting assembly is lowered, the long rod 22 is lowered under the action of gravity because of the lack of support until it becomes horizontal, and the rotating support 4 starts to reset under the action of the elastic member 5. During the whole movement process, the paint dripping device continuously drips paint on the workpiece to make the paint film on the workpiece evenly wrap on the surface.

[0058] In other more preferred embodiments, the self-rotation work station assembly needs to be fixed on the rotating support 4 when switching between the horizontal state and the inclined state, and a fixing structure is needed to fix it, which can be fixed by a buckle structure and the like that cooperate with each other; in addition, the switch 21 of the servo motor is arranged directly below the motor, and a limiting mechanism is further arranged on the rack structure to ensure that the driving gear 13 does not come off.

[0059] The multi-station self-rotation mechanism of the present application has a left-right symmetrical structure, and the overall structure is more stable; at the same time, the mechanism needs to rely on the whole paint dripping machine to realize the functions of rotation, lifting and the like, and those skilled in the art should know that, in order to realize the above functions, the present application requires that the lower lifting structure be reserved with a fixed work station; and the self-rotation work station assembly part can be accurately sent to the predetermined work station by the conveying chain assembly and cooperate with the lifting structure part.

[0060] The above only describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-station self-rotation mechanism with adjustable angle of a painting station, characterized in that, The device comprises a base (1) and a lifting device arranged on the base (1), wherein: The lifting device comprises at least one pair of left-right symmetrical lifting assemblies, wherein the upper end of each lifting assembly is provided with a rotating support (4), and each rotating support (4) is provided with a self-rotation work station assembly; each pair of self-rotation work station assemblies are connected by a self-rotation gravity rod (7) to form a double-joint structure; each self-rotation work station assembly comprises a long rod (22), and one end of each long rod (22) is connected with a corresponding connecting joint member (17), and the end of the connecting joint member (17) away from the corresponding long rod (22) is connected with the end of the self-rotation gravity rod (7) through a pin shaft structure to form a rotating joint; and each self-rotation work station assembly can rotate around the rotating joint to remain horizontal or form an included angle; the outer end of each self-rotation work station assembly is provided with a workpiece mounting portion (2) for mounting a machining workpiece, and the machining workpiece can self-rotate around the central axis of the long rod (22) in the inclined state and the horizontal state; the lower end of the self-rotation gravity rod (7) is provided with a supporting platform (19) for supporting the self-rotation gravity rod (7). When painting, the lifting assemblies can drive the self-rotation work station assemblies to ascend synchronously, and the rotating supports (4) are rotated to one side of the self-rotation gravity rod (7) under the action of the gravity of the self-rotation gravity rod (7), so that the self-rotation work station assemblies are in an inclined state relative to the horizontal plane; when the lifting assemblies drive the self-rotation work station assemblies to descend synchronously, the rotating supports (4) are rotated to the side away from the self-rotation gravity rod (7), so that the self-rotation work station assemblies become in a horizontal state.

2. A multi-station self-rotation mechanism with adjustable angle of a paint dripping station according to claim 1, characterized in that, The self-rotation work station assembly is internally provided with a first rotating shaft (8), and the workpiece mounting portion (2) is arranged at the outer end of the first rotating shaft (8); the self-rotation gravity rod (7) is internally provided with a second rotating shaft (9), and the end of the second rotating shaft (9) is connected with the inner end of the first rotating shaft (8); the middle part of the second rotating shaft (9) is provided with a driving assembly for driving the second rotating shaft (9) to rotate, so that the first rotating shaft (8) at both ends drives the workpiece mounting portion (2) to rotate the machining workpiece.

3. A multi-station self-rotation mechanism with adjustable angle of a paint dripping station according to claim 2, characterized in that, The driving assembly comprises a self-rotation gear (10) and a transmission chain assembly, the self-rotation gear (10) is sleeved on the second rotating shaft (9), and the lower part of the self-rotation gear (10) protrudes from the rod body of the self-rotation gravity rod (7); the transmission chain assembly is arranged on the supporting platform (19) and is engaged with the self-rotation gear (10), and when the transmission chain assembly moves in the front-rear direction, the self-rotation gear (10) is driven to rotate the second rotating shaft (9) in the front-rear direction, so that the first rotating shaft (8) drives the workpiece mounting portion (2) to rotate.

4. A multi-station self-rotation mechanism with adjustable angle of a paint dripping station according to claim 3, characterized in that, The transmission chain assembly comprises at least three parallel transmission chains, the middle transmission chain is engaged with the self-rotation gear (10), and the transmission chains on both sides are used to convey and place the self-rotation work station assemblies on the lifting assemblies.

5. A multi-station self-rotation mechanism with adjustable angle of a painting station according to claim 1, characterized in that, The rotation support (4) is further connected with the upper end of the lifting assembly through an elastic member (5), which is used for limiting the rotation angle of the rotation support (4).

6. A multi-station self-rotation mechanism with adjustable angle of a painting station according to claim 1, characterized in that, The rotation support (4) is further connected with the upper end of the lifting assembly through an elastic member (5), which is used for limiting the rotation angle of the rotation support (4).

7. A multi-station self-rotation mechanism with adjustable angle of a painting station according to claim 1, characterized in that, The rotation angle of the rotation support (4) is 0°-45°.

8. A multi-station self-rotation mechanism with adjustable angle of a painting station according to claim 1, characterized in that, Each group of the lifting assembly comprises a driving motor (11) and a lifting guide rod (14) arranged above the driving motor (11), the driving motor (11) can drive the lifting guide rod (14) to ascend and descend when rotating, a transmission shaft (12) is arranged between two symmetrically arranged groups of the lifting assembly, the two ends of the transmission shaft (12) are respectively connected with the output shafts of the driving motors (11) on the corresponding sides, so that the driving motors (11) rotate in the same direction, and then drive the lifting guide rods (14) to ascend and descend synchronously.

9. A multi-station self-rotation mechanism for a paint dripping station with adjustable angle, according to claim 8, characterized in that, The two ends of the transmission shaft (12) close to the driving motor (11) are both sleeved with a driving gear (13); the lifting guide rod (14) is provided with a rack structure (15), the driving gear (13) is in meshing connection with the rack structure (15); when the driving motor (11) drives the transmission shaft (12) to rotate, the driving gear (13) rotates synchronously, and then drives the rack structure (15) to drive the lifting guide rod (14) to ascend and descend.

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