Hydraulic cylinder barrel paint spraying tool

By designing a hydraulic cylinder painting fixture, the cylinder can be automatically painted using the combination of a turntable and a cover plate. This solves the problems of low painting efficiency and uneven painting of hydraulic cylinders, and improves painting efficiency and effect.

CN223761285UActive Publication Date: 2026-01-06SICHUAN CHANGJIANG HYDRAULIC TIANCHENG MACHINERY
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Patent Information

Application Number
CN202520012954.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-03
Publication Date
2026-01-06
Estimated Expiration
2035-01-03

AI Technical Summary

Technical Problem

The existing hydraulic cylinder painting process is inefficient and produces uneven paint results, requiring a lot of manpower.

Method used

Design a hydraulic cylinder spraying fixture, including a turntable, a cover plate and a nozzle. The cylinder is moved into the spraying chamber by the base plate. The cover plate covers the top surface of the cylinder and drives the cylinder to rotate coaxially. The nozzle sprays paint vertically to achieve uniform paint spraying.

Benefits of technology

It has achieved automated painting, improved work efficiency, enhanced the uniformity of paint on the cylinder surface, and improved the painting effect.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223761285U_ABST
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Abstract

The hydraulic cylinder barrel paint spraying tool comprises a bottom plate, a rotating disc is rotationally arranged at the top of the bottom plate and used for containing a cylinder barrel to be painted, a plurality of pulleys are arranged at the bottom of the bottom plate, the bottom plate is movably arranged on a rail through the pulleys, and a paint spraying chamber is arranged outside the rail; the two side plates are symmetrically arranged on the two sides of the track and are parallel to the length direction of the track, the top plate is used for being connected with the top ends of the two side plates, a cover plate is vertically and movably arranged in the paint spraying chamber, and the cover plate is rotationally arranged around the axis of the cover plate. The cover plate is used for covering the top face of the cylinder barrel and driving the cylinder barrel and the rotating disc to coaxially rotate, a plurality of nozzles are symmetrically arranged on the two sides of the inner wall of the paint spraying chamber in the vertical direction, and the nozzles face the axis of the cover plate. According to the scheme, paint spraying work of the cylinder barrel can be automatically completed, and the paint spraying effect is improved while the working efficiency is improved.
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Description

Technical Field

[0001] This application relates to the field of hydraulic cylinder manufacturing technology, and in particular to a hydraulic cylinder barrel painting fixture. Background Technology

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy, performing linear reciprocating motion (or oscillating motion). When used to achieve reciprocating motion, it eliminates the need for a speed reduction device, eliminates transmission backlash, and provides smooth movement. Therefore, it is widely used in the hydraulic systems of various machines. A hydraulic cylinder basically consists of a cylinder barrel and cylinder head, a piston and piston rod, a sealing device, a cushioning device, and a venting device.

[0003] During the manufacturing process of hydraulic cylinders, it is necessary to paint the exterior of the hydraulic cylinders. Currently, the painting of hydraulic cylinders is mostly done manually, which requires a lot of manpower. It is not only inefficient, but the paint thickness on the cylinder surface may also be uneven during the painting process, resulting in poor painting effect. Utility Model Content

[0004] To address the shortcomings of the prior art, this application provides a hydraulic cylinder painting fixture that can automatically complete the cylinder painting process, improving both work efficiency and painting effect.

[0005] To achieve the above objectives, the present invention employs the following technology:

[0006] A hydraulic cylinder painting fixture includes a base plate with a turntable rotatably mounted on its top for holding the cylinder to be painted. Multiple pulleys are located at the bottom of the base plate, which is moved along a track via the pulleys. A painting chamber is located outside the track, comprising two side plates symmetrically arranged on both sides of the track and parallel to the track's length, and a top plate connecting the tops of the two side plates. A cover plate is vertically movable inside the painting chamber and rotates around its own axis. When the turntable, carrying the cylinder to be painted, moves directly under the cover plate, the cover plate covers the top surface of the cylinder and causes the cylinder to rotate coaxially with the turntable. Multiple nozzles are symmetrically arranged on both sides of the inner wall of the painting chamber along the vertical direction, and the nozzles are oriented towards the axis of the cover plate.

[0007] The beneficial effects of this utility model are as follows: By configuring the base plate, track, and spray booth, the hydraulic cylinder to be painted automatically moves into the spray booth under the drive of the base plate and completes the painting work, which helps improve work efficiency. By configuring the cover plate, turntable, and nozzles, the hydraulic cylinder to be painted rotates synchronously under the drive of the cover plate, and is painted while the cylinder rotates, thereby improving the uniformity of the paint thickness on the cylinder surface and enhancing the painting effect. Attached Figure Description

[0008] The accompanying drawings described herein are merely illustrative of selected embodiments, not all possible implementations, and are not intended to limit the scope of this invention.

[0009] Figure 1 This is a perspective view of the overall structure of an embodiment of this application.

[0010] Figure 2 This is a schematic diagram of the internal structure of the spray booth according to an embodiment of this application.

[0011] Figure 3 This is a perspective view of the overall structure of the base plate in an embodiment of this application.

[0012] Figure 4 This is a partial structural diagram of the turntable in an embodiment of this application when it moves to directly below the cover plate. Detailed Implementation

[0013] To make the objectives, technical solutions and advantages of the present utility model clearer, the implementation methods of the present utility model will be described in detail below with reference to the accompanying drawings. However, the embodiments described in the present utility model are only some embodiments of the present utility model, and not all embodiments.

[0014] This application provides a hydraulic cylinder painting fixture, such as... Figures 1-4 As shown, the system includes a base plate 1, with a turntable 2 rotatably mounted on its top. The turntable 2 holds the cylinder to be painted. Multiple pulleys 11 are located at the bottom of the base plate 1, allowing it to move along a track 3 via the pulleys 11. A paint spray chamber 4 is located outside the track 3. The paint spray chamber 4 includes two side plates symmetrically arranged on both sides of the track 3 and parallel to the length of the track 3, and a top plate connecting the tops of the two side plates. A cover plate 5 is vertically movable inside the paint spray chamber 4, and the cover plate 5 is rotatable around its own axis. When the cylinder to be painted is carried on the turntable 2 and moved to the bottom of the cover plate 5, the cover plate 5 covers the top surface of the cylinder and drives the cylinder to rotate coaxially with the turntable 2. Multiple nozzles 41 are symmetrically arranged on both sides of the inner wall of the paint spraying chamber 4 in the vertical direction, and the nozzles 41 are set towards the axis of the cover plate 5, so that the axis of the nozzles 41 and the axis of the cover plate 5 intersect on the horizontal plane, so that the nozzles 41 can achieve vertical painting on the cylinder placed on the turntable 2, so as to achieve the best painting effect and improve the painting efficiency.

[0015] In application, the cylinder to be painted is placed coaxially on the turntable 2. The base plate 1 moves on the track 3 via pulleys 11 until the turntable 2 is directly below the cover plate 5, at which point the base plate 1 stops moving. The cover plate 5 is then moved downwards until its bottom surface contacts the top surface of the cylinder. The cover plate 5 is then rotated; as it rotates, friction causes the cylinder to rotate coaxially with the turntable 2. At this point, the nozzle 41 is opened, allowing it to evenly spray paint onto the rotating cylinder.

[0016] In actual use, multiple base plates 1 can be introduced into the track 3 and moved at a certain interval on the track 3, thereby bringing multiple cylinders into the paint spraying chamber 4 for painting in sequence, realizing automated painting work, saving manpower and improving work efficiency.

[0017] Specifically, the edge of the turntable 2 has a serrated structure, and the bottom plate 1 has a through groove 13 extending downward on the front side of the turntable 2. A mating block 12 is rotatably arranged in the through groove 13. The rotation axis of the mating block 12 is set parallel to the width direction of the track 3. The bottom plate 1 extends upward on the front side of the through groove 13 to form a vertical plate 14. A spring 15 is connected between the vertical plate 14 and the mating block 12. The spring 15 is used to make the mating block 12 rotate backward and mesh with the edge of the turntable 2. A baffle 31 is provided on the track 3. The baffle 31 is used to push the bottom of the mating block 12 to make it rotate. During use, before the base plate 1 enters the spray booth 4, the mating block 12 rotates backward under the action of the spring 15 and engages with the edge of the turntable 2. At this time, the mating block 12 is in its initial state, the spring 15 is in its natural state or compressed state, and the turntable 2 cannot rotate under the engagement of the mating block 12, so as to avoid starting to rotate before the turntable 2 moves directly under the cover plate 5, which would affect the stability of the base plate 1 moving on the track 3. When the base plate 1 enters the spray booth 4 and the turntable 2 is coaxially located directly under the cover plate 5, the bottom of the mating block 12 contacts the baffle 31, and the mating block 12 rotates forward under the action of the baffle 31. The spring 15 is continuously compressed, and the mating block 12 no longer engages with the turntable 2. At this time, the turntable 2 changes from a non-rotatable state to a rotatable state. After the painting is completed, the base plate 1 continues to move forward until the mating block 12 has completely passed the baffle 31. After the baffle 31 is no longer restricting it, the mating block 12 rotates to the rear under the action of the spring 15 and returns to the initial state. The turntable 2 also returns to the state where it cannot rotate.

[0018] Specifically, the turntable 2 is a three-jaw chuck used to fix the cylinder and enable it to be automatically aligned, so as to prevent the cylinder from shaking or shifting during the movement of the base plate 1, improve the alignment effect between the cylinder and the turntable 2, and thus improve the painting effect when the cover plate 5 drives the cylinder and the turntable 2 to rotate.

[0019] Specifically, the cover plate 5 is driven to rotate by a first motor, which is mounted on a mounting plate 6. The output end of the first motor passes through the mounting plate 6 and is coaxially connected to the top of the cover plate 5. Both ends of the mounting plate 6 are vertically threaded with screws 7, which are driven to rotate by a second motor. The two screws 7 are respectively rotatably located on both sides of the paint spray chamber 4, that is, both sides of the paint spray chamber 5 extend inward to form a mounting platform. The screws 7 and the second motor are both vertically mounted on the mounting platform, and the screws 7 are located above the nozzle 41.

[0020] Specifically, a rubber pad is installed on the bottom surface of the cover plate 5, which not only effectively prevents the cover plate 5 from scratching the top surface of the cylinder, but also increases the friction between the bottom surface of the cover plate 5 and the top surface of the cylinder, making the process of the cover plate 5 driving the cylinder to rotate more stable.

[0021] In application, the above description is only a preferred embodiment of this application and is not intended to limit this application. Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application.

Claims

1. A hydraulic cylinder barrel paint spraying tool characterized by, The utility model provides a kind of automatic cylinder spraying device, including bottom plate (1), the top rotation is equipped with rotary table (2), rotary table (2) is used to place the cylinder to be sprayed, the bottom of bottom plate (1) is equipped with multiple pulleys (11), bottom plate (1) is moved and is located on a track (3) by pulley (11), the outside of track (3) is equipped with paint spraying chamber (4), paint spraying chamber (4) includes two side plates being symmetrically arranged on the both sides of track (3) and being parallel to the length direction of track (3), and top plate for connecting the top of two side plates, cover plate (5) is vertically moved and is arranged in paint spraying chamber (4), and cover plate (5) is rotationally arranged around its axis, when rotary table (2) is loaded with the cylinder to be sprayed and moves to the just below cover plate (5), cover plate (5) is used to cover the top surface of cylinder and drives cylinder to rotate coaxially with rotary table (2), multiple nozzles (41) are symmetrically arranged in vertical direction on the both sides of the inner wall of paint spraying chamber (4), and nozzle (41) is arranged towards the axis of cover plate (5).

2. The hydraulic cylinder barrel paint spraying tool according to claim 1, characterized in that, The edge of rotary table (2) is sawtooth structure, bottom plate (1) is downwardly and throughly provided with through slot (13) on the front side of rotary table (2), cooperating block (12) is rotationally arranged in through slot (13), the rotation axis of cooperating block (12) is arranged in parallel to the width direction of track (3), vertical plate (14) is formed by upwardly extending on the front side of through slot (13), spring (15) is connected between vertical plate (14) and cooperating block (12), spring (15) is used to make cooperating block (12) rotate to the back side and engage with the edge of rotary table (2), baffle (31) is arranged on track (3), baffle (31) is used to push the bottom of cooperating block (12) to make it rotate.

3. The hydraulic cylinder barrel paint spraying tool according to claim 1, characterized in that, Rotary table (2) is three-jaw chuck, used to fix cylinder and make it realize automatic centering.

4. The hydraulic cylinder barrel paint spraying tool according to claim 1, characterized in that, Cover plate (5) is rotationally driven by a first motor, the first motor is installed on mounting plate (6), the output end of first motor is coaxially connected with the top of cover plate (5) by penetrating mounting plate (6), both ends of mounting plate (6) are vertically and threadedly provided with screw rod (7), screw rod (7) is rotationally driven by a second motor, two screw rods (7) are rotationally arranged on the both sides in paint spraying chamber (4) respectively, and screw rod (7) is arranged above nozzle (41).

5. The hydraulic cylinder barrel paint spraying tool according to claim 1, characterized in that, Rubber pad is mounted on the bottom surface of cover plate (5).