Automatic conveying device based on nitrogen spring production

Abstract

The invention relates to the technical field of nitrogen spring production equipment, in particular to an automatic conveying device based on nitrogen spring production, which comprises a rack, a turnover seat, a turnover driving device, a clamping mechanism, an autorotation driving device, a feeding and discharging mechanism and a pushing mechanism, the turnover seat is driven to rotate by the turnover driving device, and the clamping mechanism comprises an autorotation cylinder, a clamping piece and an elastic piece. The rotation cylinder is rotationally mounted on the turnover seat, and the clamping piece is located on the inner side of the rotation cylinder and connected with the rotation cylinder through the elastic piece; the feeding and discharging mechanism comprises a clamping jaw. The clamping mechanism can stably clamp the piston rod to the center of the autorotation cylinder, shaking of the nitrogen spring during autorotation is reduced, and stability is improved; the lower end face of the cylinder body at the top of the autorotation cylinder is in contact fit, paint mist can be prevented from making contact with the piston rod, the piston rod is effectively protected, and paint is prevented from adhering to the piston rod; the material pushing mechanism can drive the piston rod to descend and ascend, paint mist cannot make contact with the piston rod during paint spraying, and the clamping jaw can conveniently clamp the piston rod.

Description

Technical Field

[0001] The present invention relates to the technical field of nitrogen spring production equipment, in particular to an automatic conveying device based on nitrogen spring production. Background Art

[0002] A nitrogen gas spring is a new type of elastic component that uses high-pressure nitrogen as its working medium. It generally consists of a cylinder, piston rod, and guide sleeve, with a sealing ring between the piston rod and guide sleeve. During the production process, the outer wall of the cylinder needs to be painted for both protection and aesthetics.

[0003] The patent with announcement number CN208554745U discloses a gas spring painting equipment, which includes a butterfly electrostatic painting system, a conveying mechanism and a jig. The equipment fixes the gas spring through the jig, and the conveying mechanism drives the jig to rotate to achieve uniform painting of the gas spring. However, the existing technology has the following problems: when the piston rod is inserted into the jig and rotates, due to the gap between the piston rod and the inner wall of the jig, the cylinder body and piston rod of the nitrogen spring are prone to shaking during rotation, resulting in reduced stability of the nitrogen spring rotation, and in severe cases, it may even fly out of the jig; at the same time, during the painting process, the shaking nitrogen spring easily causes mist paint particles to enter the gap between the jig and the piston rod, and adhere to the surface of the piston rod, affecting the quality of the nitrogen spring. Therefore, there is an urgent need for an automatic conveying device that can stably convey nitrogen springs and effectively protect the piston rod. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic conveying device based on nitrogen spring production to solve the problem in the prior art that nitrogen springs shake during the painting process due to the gap between the piston rod and the inner wall of the jig, and paint mist adheres to the piston rod, causing failure.

[0005] In order to achieve the above-mentioned objectives, the present invention provides an automatic conveying device based on nitrogen spring production, including a frame, a revolving seat, a revolving drive device, a clamping mechanism, a rotation drive device, a loading and unloading mechanism, and a pushing mechanism. The revolving seat is driven to rotate by the revolving drive device, and the clamping mechanism includes a rotating cylinder, a clamping member, and an elastic member. The rotating cylinder is rotatably mounted on the revolving seat through a bearing, and the clamping member is located on the inner side of the rotating cylinder and is connected to the rotating cylinder through an elastic member, and the clamping members are distributed in a circle along the center of the rotating cylinder; the loading and unloading mechanism includes a clamping claw, which is used to clamp the piston rod of the nitrogen spring and insert the piston rod into the rotating cylinder at the loading and unloading station so that the clamping member clamps the piston rod; the rotation drive device is used to drive the rotating cylinder at the painting station to rotate; the pushing mechanism is used to drive the piston rod to descend so that the lower end surface of the cylinder body of the nitrogen spring contacts the top of the rotating cylinder, and drives the piston rod to rise so that there is a distance between the end surface of the cylinder body of the nitrogen spring facing the piston and the top of the rotating cylinder for the clamping claw to move and thus clamp the piston rod.

[0006] Preferably, the pushing mechanism includes a first linear push rod and an electromagnet. The first linear push rod is installed on the frame. The electromagnet is connected to the output end of the first linear push rod. The electromagnet can enter the interior of the rotating cylinder from the bottom of the rotating cylinder and magnetically cooperate with the piston rod of the nitrogen spring.

[0007] Preferably, the loading and unloading mechanism also includes a first linear slide, a first transverse frame, a second linear push rod, a lifting frame, a drive motor, and a rotating frame. The first linear slide is installed on the frame, the first transverse frame is installed on the output end of the first linear slide, the second linear push rod is installed on the first transverse frame, the lifting frame is connected to the output end of the second linear push rod, the drive motor is installed on the lifting frame, the rotating frame is rotatably connected to the lifting frame, a rotating shaft is fixed on the lifting frame, the drive motor is connected to the rotating shaft and can drive the rotating shaft to rotate a preset angle, and the clamp is installed on the lifting frame.

[0008] Preferably, the top of the rotating drum is provided with a flange, which is configured to contact and cooperate with the lower end surface of the cylinder body to prevent paint mist from contacting the piston rod. This creates a gap between the lower end surface of the cylinder body and the rotating drum that is equal to the height of the flange, facilitating contact between paint mist and the upper end surface of the cylinder body. The lower end surface of the cylinder body refers to the end surface of the cylinder body facing the piston rod.

[0009] Preferably, the clamping jaws include two clamping parts that can move toward and away from each other, and the end surfaces of the clamping parts facing each other are provided with V-shaped grooves for clamping the piston rod. There are at least two clamping jaws, which are distributed circumferentially along the axis of the rotating shaft.

[0010] Preferably, the upper end of the clamping portion is provided with an avoidance groove for accommodating a protruding component protruding from the lower end surface of the cylinder body, so that the upper end surface of the cylinder body abuts against the upper end surface of the clamping portion; the avoidance groove is connected to the V-shaped groove.

[0011] Preferably, the self-rotation drive device includes a second linear slide, a mounting plate, and a rack. The second linear slide is installed on the frame, the mounting plate is installed at the output end of the second linear slide, and the rack is fixedly connected to the mounting plate; the clamping mechanism also includes a gear, which is fixedly installed on the lower part of the self-rotating cylinder and is located below the revolving seat. The second linear slide is used to drive the rack to move linearly so that the rack engages with the gear at the painting station.

[0012] Preferably, there are multiple rotating drums, which are distributed in a circle along the rotation center of the revolving seat.

[0013] Preferably, the turnover drive device is a hollow rotating table, the turnover drive device is mounted on the frame, and the turnover seat is mounted on the turnover drive device.

[0014] Preferably, the clamping mechanism further comprises guide rods, at least two guide rods are fixed on the clamping piece, the guide rods are in sliding connection with the self-rotating cylinder, and one end of the guide rods extends out of the self-rotating cylinder and is provided with a limiting piece. The elastic member is a spring, and the elastic member is sleeved on the guide rod.

[0015] Compared with the prior art, the technical scheme has at least one of the following beneficial effects: 1. In the clamping mechanism, the clamping pieces are distributed in a circle along the center of the self-rotating cylinder and are connected with the self-rotating cylinder through elastic members, so that the piston rod can be clamped to the center of the self-rotating cylinder stably, the shaking of the nitrogen gas spring during self-rotation is reduced, and the stability is improved. 2. The lower end surface of the cylinder body at the top of the self-rotating cylinder is in contact and cooperation, which can block the contact between the paint mist and the piston rod, effectively protects the piston rod, and prevents the paint from adhering to the piston rod. 3. The pushing mechanism can drive the piston rod to descend and ascend. When the pushing mechanism drives the piston rod to descend, the lower end surface of the cylinder body is brought into contact with the top of the self-rotating cylinder, so that the paint mist does not contact the piston rod during paint spraying. When the material needs to be discharged, the pushing mechanism drives the piston rod to ascend, so that the piston rod is exposed above the self-rotating cylinder, the piston rod is clamped by the clamping jaw, and the surface of the cylinder body after paint spraying is avoided to be clamped by the clamping jaw, so that the paint surface is not affected. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A perspective view of an automatic conveying device based on nitrogen gas spring production is provided for the embodiment of the present application; Figure 2 A structural schematic view of an automatic conveying device based on nitrogen gas spring production is provided for the embodiment of the present application; Figure 3 A side view of an automatic conveying device based on nitrogen gas spring production is provided for the embodiment of the present application; Figure 4 A Figure 3 sectional view along line A-A; Figure 5 A partial schematic view of an automatic conveying device based on nitrogen gas spring production is provided for the embodiment of the present application Figure 1 (the state of clamping the piston rod into the self-rotating cylinder by the clamping jaw); Figure 6 A partial schematic view of an automatic conveying device based on nitrogen gas spring production is provided for the embodiment of the present application Figure 2 (the state of separation of the clamping jaw and the piston rod); Figure 7 A partial schematic view of an automatic conveying device based on nitrogen gas spring production is provided for the embodiment of the present application Figure 3 (the state of descending of the piston rod attracted by the electromagnet); Figure 8 A sectional view of the clamping mechanism; Figure 9is a top view of the clamping portion; Figure 10 for Figure 1 A partial enlarged view of point B in the middle; Figure 11 for Figure 7 A partial enlarged view of point C in the middle; In the figure, 1, frame; 11, loading and unloading station; 12, painting station; 2, rotating seat; 3, rotating drive device; 4, clamping mechanism; 41, rotating cylinder; 411, flange; 42, clamping member; 43, elastic member; 44, gear; 45, guide rod; 46, limit member; 5, rotating drive device; 51, second linear slide; 52, mounting plate; 53, rack; 6, loading and unloading mechanism; 61, clamping claw; 611. Clamping portion; 612. V-shaped groove; 613. Avoidance groove; 62. First linear slide; 63. First transverse frame; 64. Second linear push rod; 65. Lifting frame; 66. Drive motor; 67. Rotating frame; 68. Rotating axis; 7. Pushing mechanism; 71. First linear push rod; 72. Electromagnet; 8. Nitrogen spring; 81. Piston rod; 82. Cylinder body; 821. Lower end surface; 83. Protruding part. DETAILED DESCRIPTION

[0017] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] See also Figures 1 to 11 The embodiment of the present application provides an automatic conveying device based on nitrogen spring production, including a frame 1, a revolving seat 2, a revolving drive device 3, a clamping mechanism 4, a rotation drive device 5, a loading and unloading mechanism 6, and a pushing mechanism 7.

[0019] Among them, the revolving seat 2 is driven to rotate by the revolving drive device 3, the revolving drive device 3 is a hollow turntable, which is fixedly mounted on the frame 1, and the revolving seat 2 is installed at the output end of the hollow turntable, and is driven by the hollow turntable to rotate around its central axis to realize the switching of various workstations on the revolving seat 2, such as the loading and unloading station 11, the painting station 12, etc.

[0020] By setting the turnover drive device 3 as a hollow rotating table, it is convenient to fix a fixed column passing through the hollow channel of the turnover drive device 3 on the frame 1, and fix a mounting plate for installing the paint spraying device on the fixed column, thereby facilitating the paint spraying operation.

[0021] The nitrogen spring 8 includes a cylinder 82 and a piston rod 81 .

[0022] Among them, the clamping mechanism 4 includes a rotating cylinder 41, a clamping member 42, and an elastic member 43. The rotating cylinder 41 is rotatably mounted on the swivel seat 2. The clamping member 42 is located on the inner side of the rotating cylinder 41 and is connected to the rotating cylinder 41 through the elastic member 43. The clamping members 42 are distributed circumferentially along the center of the rotating cylinder 41. The rotating cylinder 41 is distributed circumferentially along the rotation center of the swivel seat 2 and is rotatably mounted on the swivel seat 2 through bearings. Taking eight rotating cylinders 41 as an example, they are evenly distributed on the swivel seat 2. Three clamping members 42 are set on the inner side of each rotating cylinder 41, distributed circumferentially along the center of the rotating cylinder 41. When the piston rod 81 is inserted into the rotating cylinder 41, the clamping member 42 tightly clamps the piston rod 81 under the action of the spring to ensure stable clamping.

[0023] In addition, the top end of the clamping member 42 is provided with a chamfer, which can facilitate guiding the piston rod 81 into the clamping space surrounded by the clamping members 42.

[0024] In this embodiment, the loading and unloading mechanism 6 includes a clamping jaw 61, a first linear slide 62, a first transverse frame 63, a second linear push rod 64, a lifting frame 65, a drive motor 66, and a rotating frame 67. The clamping jaw 61 is used to clamp the piston rod 81 of the nitrogen spring 8 and insert the piston rod 81 into the rotating cylinder 41 at the loading and unloading station 11, so that the clamping member 42 clamps the piston rod 81; The clamping jaws 61 are pneumatic or electric. The clamping jaws 61 include two clamping portions 611 that can move toward and away from each other. The end surfaces of the clamping portions 611 facing each other are provided with V-shaped grooves 612 for clamping the piston rod 81. Four clamping jaws 61 are provided, and the clamping jaws 61 are distributed circumferentially along the axis of the rotating shaft 68. In this embodiment, the first linear slide 62 is an electric slide, and a pneumatic slide can also be used. The second linear push rod 64 is a pneumatic cylinder, and an electric cylinder or a hydraulic cylinder can also be used. The drive motor 66 is a stepper motor, and a servo motor can also be used. The first linear slide 62 is installed on the frame 1, the first transverse frame 63 is installed on the output end of the first linear slide 62, the second linear push rod 64 is installed on the first transverse frame 63, the lifting frame 65 is connected to the output end of the second linear push rod 64, the drive motor 66 is installed on the lifting frame 65, the rotating frame 67 is rotatably connected to the lifting frame 65, and a rotating shaft 68 is fixed on the lifting frame 65. The drive motor 66 is connected to the rotating shaft 68 and can drive the rotating shaft 68 to rotate a preset angle, and the clamp 61 is installed on the lifting frame 65.

[0025] Specifically, a first linear slide 62 is mounted on the frame 1 and extends horizontally. A first traverse frame 63 is driven by the first linear slide 62 to move horizontally. A second linear push rod 64 is positioned vertically, and a lifting frame 65 is driven by the second linear push rod 64 to move vertically upward and downward. A drive motor 66 drives a rotating shaft 68 to rotate a predetermined angle, thereby driving the rotating frame 67 and the clamping jaw 61 to rotate.

[0026] During loading, the loading and unloading mechanism 6 moves via the first linear slide 62 and the first transverse frame 63 to the position above the nitrogen spring 8 to be painted. The second linear push rod 64 drives the lifting frame 65 downward, and the V-shaped groove of the clamping jaw 61 clamps the piston rod 81. The clamping jaw then rises and moves to the loading and unloading station 11, inserting the piston rod 81 into the rotating drum 41, and the clamping member 42 clamps the piston rod 81. During unloading, the clamping jaw 61 moves to the painted nitrogen spring 8, clamps the piston rod 81, and removes it.

[0027] In this embodiment, the pushing mechanism 7 is used to drive the piston rod 81 downward so that the lower end surface 821 of the cylinder body 82 of the nitrogen spring 8 contacts the top of the rotating cylinder 41, and to drive the piston rod 81 upward so that there is a gap between the end surface of the cylinder body 82 of the nitrogen spring 8 facing the piston and the top of the rotating cylinder 41 for the clamping jaws 61 to move and thus clamp the piston rod 81.

[0028] Specifically, the pushing mechanism 7 includes a first linear push rod 71 and an electromagnet 72. The first linear push rod 71 is a pneumatic cylinder, or an electric cylinder or a hydraulic cylinder. The first linear push rod 71 is installed on the frame 1, and the electromagnet 72 is connected to the output end of the first linear push rod 71. The electromagnet 72 can enter the interior of the rotating cylinder 41 from the bottom of the rotating cylinder 41 and magnetically cooperate with the piston rod 81 of the nitrogen spring 8.

[0029] It should be noted that the first linear push rod 71 is arranged in the vertical direction. When the piston rod 81 needs to be driven to descend, the first linear push rod 71 drives the electromagnet 72 from the bottom of the rotating cylinder 41 into the interior of the rotating cylinder 41. After the electromagnet 72 is energized, it magnetically cooperates with the piston rod 81 to pull the piston rod 81 downward, causing the nitrogen spring 8 to descend as a whole. The lower end surface 821 of the cylinder body 82 contacts the flange at the top of the rotating cylinder 41, blocking the paint mist from contacting the piston rod 81. After the painting is completed, the first linear push rod 71 drives the electromagnet 72 to rise. After the electromagnet 72 contacts the piston rod 81, it is pushed upward a distance, but it will not completely detach from the clamping member 42 and is still clamped by the clamping member 42. Finally, a gap is formed between the lower end surface 821 of the cylinder body 82 and the top of the rotating cylinder 41 for the clamping claw 61 to move, making it easier for the clamping claw 61 to clamp the piston rod 81. In this embodiment, the applicable piston rod 81 must be made of ferromagnetic material. If the material is not ferromagnetic, the electromagnet 72 needs to be replaced with a power clamping claw.

[0030] In this embodiment, the rotation drive device 5 is used to drive the rotation drum 41 at the painting station 12 to rotate; the rotation drive device 5 includes a second linear slide 51, a mounting plate 52, and a rack 53. The second linear slide 51 is installed on the frame 1, and the mounting plate 52 is installed at the output end of the second linear slide 51. The rack 53 is fixedly connected to the mounting plate 52; the clamping mechanism 4 also includes a gear 44, which is fixedly installed on the lower part of the rotation drum 41. The gear 44 is located below the revolving seat 2. The second linear slide 51 is used to drive the rack 53 to move linearly so that the rack 53 engages with the gear 44 at the painting station 12.

[0031] The second linear slide 51 is arranged in the horizontal direction. When the nitrogen spring 8 moves to the painting station 12, the second linear slide 51 drives the rack 53 to move linearly, so that the rack 53 engages with the gear 44 at the painting station 12. Through the transmission of the rack 53 and the gear 44, the rotating drum 41 is driven to rotate, thereby driving the nitrogen spring 8 to rotate, so that the painting equipment can spray paint evenly.

[0032] The second linear slide 51 is an electric slide, which can control the speed of the driving mounting plate 52 and thus control the rotation speed of the gear 44.

[0033] In some embodiments, see Figures 5 to 7 To facilitate painting the lower end of cylinder body 82, a flange 411 is provided on the top of rotating drum 41. Flange 411 is designed to contact and mate with the lower end surface 821 of cylinder body 82 to prevent paint mist from contacting piston rod 81. This creates a gap between the lower end surface 821 of cylinder body 82 and rotating drum 41 that is the same height as flange 411, facilitating contact between paint mist and the upper end surface of cylinder body 82. The lower end surface 821 of cylinder body 82 refers to the end surface of cylinder body 82 that faces the free end of piston rod 81.

[0034] In some embodiments, since some nitrogen springs 8 are further provided with a protruding component 83 protruding from the lower end surface 821 of the cylinder body 82, such as a sealing cover or a guide sleeve, in order to prevent the protruding component 83 from contacting the upper end surface of the clamping portion 611, resulting in the lower end surface 821 of the cylinder body 82 not being able to contact the clamping portion 611, the nitrogen spring 8 cannot remain stable when placed on the upper end surface of the clamping portion 611 without being clamped. Please refer to Figure 1 and Figure 9 An avoidance groove 613 is provided at the upper end of the clamping portion 611 for accommodating the protruding component 83 protruding from the lower end surface 821 of the cylinder body 82. After the protruding component 83 is accommodated in the avoidance groove 613, the upper end surface of the cylinder body 82 can be abutted against the upper end surface of the clamping portion 611, ensuring reliable clamping.

[0035] In some embodiments, to improve the clamping stability of the clamping member 42 and prevent the clamping member 42 from shaking up and down, please refer to Figures 5 to 8The clamping mechanism 4 further includes guide rods 45. Two guide rods 45 are fixed to the clamping member 42 and are slidably connected to the rotating drum 41. One end of the guide rod 45 extends out of the rotating drum 41 and is equipped with a limit member 46. The elastic member 43 is a compression spring and is mounted on the guide rod 45. The limit member 46 is mounted on the end of the guide rod 45 that extends out of the rotating drum 41 to prevent the clamping member 42 from separating from the rotating drum 41.

[0036] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0037] The above embodiments merely illustrate several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0040] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

Claims

1. An automatic conveying device based on nitrogen spring production, characterized in that: The invention comprises a frame (1), a rotating seat (2), a rotating drive device (3), a clamping mechanism (4), a rotation drive device (5), a loading and unloading mechanism (6), and a pushing mechanism (7). The rotating seat (2) is driven to rotate by the rotating drive device (3). The clamping mechanism (4) comprises a rotating cylinder (41), a clamping member (42), and an elastic member (43). The rotating cylinder (41) is rotatably mounted on the rotating seat (2). The clamping member (42) is located on the inner side of the rotating cylinder (41) and is connected to the rotating cylinder (41) through the elastic member (43). The clamping member (42) is distributed in a circular shape along the center of the rotating cylinder (41). The loading and unloading mechanism (6) comprises a clamping claw (61). The clamping claw (61) is used to clamp the nitrogen spring ( 8) and inserting the piston rod (81) into the rotating cylinder (41) at the loading and unloading station (11) so that the clamping member (42) clamps the piston rod (81); the rotation driving device (5) is used to drive the rotating cylinder (41) at the painting station (12) to rotate; the pushing mechanism (7) is used to drive the piston rod (81) to descend so that the lower end surface (821) of the cylinder body (82) of the nitrogen spring (8) contacts the top of the rotating cylinder (41), and to drive the piston rod (81) to rise so that there is a gap between the lower end surface (821) of the cylinder body (82) of the nitrogen spring (8) and the top of the rotating cylinder (41) for the clamping claw (61) to move and thus clamp the piston rod (81).

2. The automatic conveying device based on nitrogen spring production according to claim 1 is characterized in that: The pushing mechanism (7) includes a first linear push rod (71) and an electromagnet (72). The first linear push rod (71) is mounted on the frame (1). The electromagnet (72) is connected to the output end of the first linear push rod (71). The electromagnet (72) can enter the interior of the rotating cylinder (41) from the bottom of the rotating cylinder (41) and magnetically cooperate with the piston rod (81) of the nitrogen spring (8).

3. The automatic conveying device based on nitrogen spring production according to claim 1 is characterized in that: The loading and unloading mechanism (6) further comprises a first linear slide (62), a first transverse frame (63), a second linear push rod (64), a lifting frame (65), a driving motor (66), and a rotating frame (67), wherein the first linear slide (62) is mounted on the frame (1), the first transverse frame (63) is mounted on the output end of the first linear slide (62), the second linear push rod (64) is mounted on the first transverse frame (63), the lifting frame (65) is connected to the output end of the second linear push rod (64), the driving motor (66) is mounted on the lifting frame (65), the rotating frame (67) is rotatably connected to the lifting frame (65), a rotating shaft (68) is fixed on the lifting frame (65), the driving motor (66) is connected to the rotating shaft (68) and can drive the rotating shaft (68) to rotate a preset angle, and the clamping claw (61) is mounted on the lifting frame (65).

4. The automatic conveying device based on nitrogen spring production according to claim 1 is characterized in that: A flange (411) is provided on the top of the rotating cylinder (41), and the flange (411) is used to contact and cooperate with the lower end surface (821) of the cylinder body (82) to prevent the paint mist from contacting the piston rod (81).

5. The automatic conveying device based on nitrogen spring production according to claim 1 is characterized in that: The clamping jaw (61) comprises two clamping portions (611) that can move toward and away from each other, and a V-shaped groove (612) for clamping the piston rod (81) is provided on the end surfaces of the clamping portions (611) facing each other.

6. The automatic conveying device based on nitrogen spring production according to claim 5 is characterized in that: The upper end of the clamping portion (611) is provided with an avoidance groove (613) for accommodating a protruding component (83) protruding from the lower end surface (821) of the cylinder body (82), so that the upper end surface of the cylinder body (82) abuts against the upper end surface of the clamping portion (611); the avoidance groove (613) is communicated with the V-shaped groove (612).

7. The automatic conveying device based on nitrogen spring production according to claim 1 is characterized in that: The self-rotation drive device (5) includes a second linear slide (51), a mounting plate (52), and a rack (53). The second linear slide (51) is mounted on the frame (1), the mounting plate (52) is mounted on the output end of the second linear slide (51), and the rack (53) is fixedly connected to the mounting plate (52). The clamping mechanism (4) also includes a gear (44). The gear (44) is fixedly mounted on the lower part of the self-rotation cylinder (41). The gear (44) is located below the revolving seat (2). The second linear slide (51) is used to drive the rack (53) to move linearly so that the rack (53) engages with the gear (44) at the painting station (12).

8. The automatic conveying device based on nitrogen spring production according to claim 1 is characterized in that: A plurality of self-rotating cylinders (41) are provided, and the self-rotating cylinders (41) are distributed in a circular pattern along the rotation center of the slewing seat (2).

9. The automatic conveying device based on nitrogen spring production according to claim 1 is characterized in that: The turnover drive device (3) is a hollow rotating table. The turnover drive device (3) is mounted on the frame (1), and the turnover seat (2) is mounted on the turnover drive device (3).

10. The automatic conveying device based on nitrogen spring production according to claim 1 is characterized in that: The clamping mechanism (4) further comprises a guide rod (45), at least two guide rods (45) are fixed on the clamping member (42), the guide rods (45) are slidably connected to the self-rotating cylinder (41), and one end of the guide rod (45) extends out of the self-rotating cylinder (41) and is installed with a limiting member (46).

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