A dual-axis precision slide cylinder
By designing a semi-circular arc plate and a cleaning sponge working together on the dual-axis slide cylinder, along with a roller guiding mechanism, the wear problem caused by dust adhesion on the piston rod was solved, achieving high-precision transmission and a long-life slide cylinder.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEZHOU AIMAI PNEUMATIC TECHNOLOGY CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-05-26
AI Technical Summary
During use, the piston rod of a dual-axis slide cylinder is exposed to the outside and is prone to dust accumulation, which leads to wear and a decrease in transmission accuracy.
A semi-circular plate and cleaning sponge were designed to work together. The piston rod’s extension and retraction motion automatically removes dust, and a spring-driven snap-fit structure facilitates the replacement of the cleaning sponge. Meanwhile, a roller and transverse box guide mechanism limits the movement trajectory, and an elastic buffer structure reduces vibration and wear.
It effectively reduces the impact of dust on transmission accuracy, ensures high-precision movement of the slide cylinder, extends service life, and maintains smooth movement.
Smart Images

Figure CN224283082U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dual-axis slide cylinder technology, specifically a dual-axis precision slide cylinder. Background Technology
[0002] A dual-axis slide cylinder is a common pneumatic actuator, consisting of two parallel cylinders and cylinder pistons. The two pistons are on the same straight line and are controlled by two air valves. During operation, one air valve controls one cylinder, causing the piston to move forward, while the other air valve controls the other cylinder, causing the piston to move in the opposite direction.
[0003] In actual use, the piston rod on the slide cylinder is exposed to the outside when it moves, so dust can easily adhere to the piston rod. As the piston rod moves back and forth for a long time, the dust will rub against the surface of the piston rod and cause wear, which in turn affects the transmission accuracy of the dual-axis precision slide cylinder. Utility Model Content
[0004] The purpose of this invention is to provide a dual-axis precision slide cylinder to solve the problems mentioned in the background art.
[0005] The objective of this utility model can be achieved through the following technical solutions:
[0006] A dual-axis precision slide cylinder includes a precision slide cylinder body. Two piston rods are slidably mounted at both ends of the precision slide cylinder body. A cylinder fixing plate is fixedly connected to one side of the two piston rods. Two semi-circular arc plates are fixedly provided on the outer surface of the piston rods. Cleaning cotton is arrayed and connected inside the two semi-circular arc plates. Circular grooves are opened on both sides of the two semi-circular arc plates.
[0007] Both ends of the precision slide cylinder body are connected to side plates in an array. Guide rods are slidably connected inside the side plates. A connecting plate is fixedly connected to one side of the guide rod, and a pull plate is fixedly connected to another side of the guide rod. Two positioning rods are fixedly connected to one side of the connecting plate. A spring is fixedly connected between the connecting plate and the connecting plate. One side of the positioning rod is engaged and placed inside the circular groove.
[0008] Preferably, two symmetrically arranged transverse boxes are fixedly connected to the upper side of the precision slide cylinder body, and two symmetrically distributed mounting blocks are fixedly connected to the upper side of each of the two cylinder fixing plates. The mounting blocks are located inside the transverse boxes, and rollers are rotatably connected inside the four mounting blocks. The rollers abut against the bottom of the transverse box.
[0009] Preferably, each of the two transverse boxes has two smooth rods fixedly connected inside, and each of the four mounting blocks has a slider fixedly connected to both ends. The slider slides inside the outer surface of the smooth rods. Each of the two transverse boxes has two symmetrically arranged support plates fixedly connected to the bottom end inside, and each of the four support plates has a third rubber pad fixedly connected to one side.
[0010] Preferably, the upper side of the side plate is threaded with a fastening bolt, and one side of the cleaning cotton is attached to the outer surface of the piston rod.
[0011] Preferably, an array of telescopic seats are fixedly connected to one side of the two cylinder fixing plates, and a telescopic seat is slidably connected to one side of the telescopic seat. A spring is fixedly connected between the round seat and the telescopic seat.
[0012] Preferably, a first rubber pad is fixedly connected to one side of the semi-circular plate, and a second rubber pad is fixedly connected to one side of the telescopic seat.
[0013] The beneficial effects of this utility model are:
[0014] 1. This utility model uses a semi-circular arc plate and a cleaning cotton in a coordinated design. When the piston rod moves in extension and retraction, it can automatically remove the dust on its surface, reducing the impact of dust accumulation on transmission accuracy. The spring-driven snap-fit structure facilitates quick disassembly and assembly of the semi-circular arc plate and makes it convenient to replace the cleaning cotton regularly, ensuring a long-term stable dust removal effect.
[0015] 2. This utility model effectively limits the movement trajectory of the cylinder fixing plate through the rolling guide mechanism of the roller and the transverse box, ensuring the linear transmission accuracy of the dual-axis slide cylinder. Subsequently, the elastic buffer design can absorb the impact when the movement stops, reduce vibration and wear, extend service life, and maintain the smoothness of the movement. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a utility model Figure 1 A schematic diagram of the structure of the middle semi-circular arc plate and the first rubber pad;
[0019] Figure 3 This is a utility model Figure 2 Enlarged view of point C in the middle;
[0020] Figure 4This is a utility model Figure 2 Installation diagram of the piston rod and cylinder mounting plate;
[0021] Figure 5 This is a utility model Figure 4 Enlarged view of point D in the middle;
[0022] Figure 6 This is a utility model Figure 1 Structural diagram of the middle horizontal box and mounting block;
[0023] Figure 7 This is a utility model Figure 6 Installation diagram of the mounting block and rollers;
[0024] The attached figures are labeled as follows:
[0025] 1. Precision slide cylinder body; 2. Piston rod; 3. Cylinder fixing plate; 4. Semi-circular arc plate; 5. Cleaning cotton; 6. Circular groove; 7. Side plate; 8. Guide rod; 9. Connecting plate; 10. Positioning rod; 11. Spring 1; 12. Pull plate; 13. Fastening bolt; 14. First rubber pad; 15. Circular seat; 16. Telescopic seat; 17. Spring 2; 18. Second rubber pad; 19. Horizontal box; 20. Mounting block; 21. Roller; 22. Smooth rod; 23. Slider; 24. Support plate; 25. Third rubber pad. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0027] like Figures 1 to 7 As shown, a dual-axis precision slide cylinder includes a precision slide cylinder body 1. Two piston rods 2 are slidably installed at both ends of the precision slide cylinder body 1. A cylinder fixing plate 3 is fixedly connected to one side of the two piston rods 2. Two semi-circular arc plates 4 are fixedly provided on the outer surface of the piston rods 2. Cleaning cotton 5 is connected in an array inside the two semi-circular arc plates 4. Circular grooves 6 are opened on both sides of the two semi-circular arc plates 4.
[0028] Both ends of the precision slide cylinder body 1 are connected to side plates 7. A guide rod 8 is slidably connected inside the side plate 7. A connecting plate 9 is fixedly connected to one side of the guide rod 8. A pull plate 12 is fixedly connected to one side of the guide rod 8. Two positioning rods 10 are fixedly connected to one side of the connecting plate 9. A spring 11 is fixedly connected between the connecting plate 9 and the connecting plate 9. One side of the positioning rod 10 is snapped into the inside of the circular groove 6. By pulling the pull plate 12, the pull plate 12 can compress the spring 11 and drive the positioning rod 10 away from the circular groove 6, which is used for disassembling the semi-circular plate 4.
[0029] Two symmetrically arranged transverse boxes 19 are fixedly connected to the upper side of the precision slide cylinder body 1. Two symmetrically distributed mounting blocks 20 are fixedly connected to the upper side of the two cylinder fixing plates 3. The mounting blocks 20 are located inside the transverse boxes 19. Rollers 21 are rotatably connected inside the four mounting blocks 20. The rollers 21 abut against the bottom of the transverse box 19.
[0030] Two smooth rods 22 are fixedly connected inside each of the two transverse boxes 19. Slider 23 is fixedly connected to both ends of each of the four mounting blocks 20. Through the installation and use of the smooth rods 22 and sliders 23, the two sliders 23 at the mounting block 20 can move on the two smooth rods 22 to limit the movement of the mounting block 20. It is also used to limit the cylinder fixing plate 3 at the guide piston rod 2, ensuring that the movement trajectory is more stable and reliable. The inside of the slider 23 slides on the outer surface of the smooth rod 22. Two symmetrically arranged support plates 24 are fixedly connected to the bottom of each of the two transverse boxes 19. A third rubber pad 25 is fixedly connected to one side of each of the four support plates 24. The third rubber pad 25 can buffer the impact of the mounting block 20 when the movement stops, further protecting the precision slide cylinder body 1.
[0031] The upper side of the side plate 7 is threaded with a fastening bolt 13. Rotating the fastening bolt 13 can release the limit on the guide rod 8 so as to drive the positioning rod 10 to move and adjust. It is used to disassemble the semi-circular plate 4 and to conveniently replace the cleaning cotton 5 on the semi-circular plate 4. It is easy to use. One side of the cleaning cotton 5 is attached to the outer surface of the piston rod 2.
[0032] Two cylinder fixing plates 3 are fixedly connected to one side of an array of telescopic seats 16, and telescopic seats 16 are slidably connected to one side of the telescopic seats 16. A spring 17 is fixedly connected between the round seat 15 and the telescopic seats 16.
[0033] A first rubber pad 14 is fixedly connected to one side of the semi-circular plate 4, and a second rubber pad 18 is fixedly connected to one side of the telescopic seat 16.
[0034] The working principle of the dual-axis precision slide cylinder provided by this utility model is as follows:
[0035] By placing two semi-circular arc plates 4 on the upper and lower sides of the piston rod 2 in sequence, the two semi-circular arc plates 4 will press the positioning rod 10, causing the two connecting plates 9 equipped with springs 11 to move. Then, the elastic force of the springs 11 will allow the positioning rod 10 to be snapped into the semi-circular arc plate 4, which is used to initially snap the positioning semi-circular arc plate 4. Next, the two fastening bolts 13 will be tightened to press the positioning guide rod 8, ensuring the stability of the positioning rod 10 when fixing the cylinder fixing plate 3. Then, as the piston rod 2 moves in extension and retraction, the cleaning cotton 5 at the two semi-circular arc plates 4 can clean the dust attached to the piston rod 2, allowing the dust to be cleaned off, reducing the amount of dust attached to the piston rod 2, protecting the piston rod 2, and improving the transmission accuracy of the dual-axis precision slide cylinder. At the same time, the snap-fit structure makes it easy to replace the cleaning cotton 5 at the semi-circular arc plates 4 regularly, which is beneficial to improving the dust removal effect.
[0036] By allowing the rollers 21 at the two mounting blocks 20 to roll inside the two transverse boxes 19, the piston rod 2 drives the cylinder fixing plate 3 to extend and retract. At this time, the rolling rollers 21 and the mounting blocks 20 can limit and guide the movement trajectory of the cylinder fixing plate 3, ensuring that the dual-axis precision slide cylinder maintains a stable transmission state and giving the slide cylinder high precision performance. Then, the first rubber pad 14 at the semi-circular plate 4 and the telescopic seat 16 with the second spring 17 installed at the round seat 15 are used, combined with the second rubber pad 18 at the telescopic seat 16, so that the elastic telescopic seat 16 can buffer and protect the cylinder fixing plate 3 during telescopic movement, reduce the impact of the slide cylinder when the movement stops, and extend the service life of the dual-axis precision slide cylinder.
[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A double-axle type precision slide cylinder comprising a precision slide cylinder main body (1), characterized by, Two piston rods (2) are slidably installed at both ends of the precision slide cylinder body (1). A cylinder fixing plate (3) is fixedly connected to one side of the two piston rods (2). Two semi-circular arc plates (4) are fixedly provided on the outer surface of the piston rods (2). Cleaning cotton (5) is connected in an array inside the two semi-circular arc plates (4). Circular grooves (6) are opened on both sides of the two semi-circular arc plates (4). Both ends of the precision slide cylinder body (1) are connected to side plates (7). A guide rod (8) is slidably connected inside the side plate (7). A connecting plate (9) is fixedly connected to one side of the guide rod (8). A pull plate (12) is fixedly connected to one side of the guide rod (8). Two positioning rods (10) are fixedly connected to one side of the connecting plate (9). A spring (11) is fixedly connected between the connecting plate (9) and the connecting plate (9). One side of the positioning rod (10) is snapped into the inside of the circular groove (6).
2. The dual-axle precision slide cylinder of claim 1, wherein, The upper side of the precision slide cylinder body (1) is fixedly connected to two symmetrically arranged transverse boxes (19). The upper side of the two cylinder fixing plates (3) is fixedly connected to two symmetrically distributed mounting blocks (20). The mounting blocks (20) are located inside the transverse boxes (19). Rollers (21) are rotatably connected inside the four mounting blocks (20). The rollers (21) abut against the bottom of the transverse boxes (19).
3. The dual-axle precision slide cylinder of claim 2, wherein, Two smooth rods (22) are fixedly connected inside each of the two transverse boxes (19). Slider (23) is fixedly connected to both ends of the four mounting blocks (20). The inside of the slider (23) is slidably placed on the outer surface of the smooth rod (22). Two symmetrically arranged support plates (24) are fixedly connected to the bottom of the inside of the two transverse boxes (19). A third rubber pad (25) is fixedly connected to one side of each of the four support plates (24).
4. The dual-axle precision slide cylinder of claim 1, wherein, The upper side of the side plate (7) is threaded with a fastening bolt (13), and one side of the cleaning cotton (5) is attached to the outer surface of the piston rod (2).
5. The dual-axle precision slide cylinder of claim 1, wherein, One side of each of the two cylinder fixing plates (3) is fixedly connected to an array of telescopic seats (16), and one side of each telescopic seat (16) is slidably connected to a telescopic seat (16). A spring (17) is fixedly connected between the round seat (15) and the telescopic seat (16).
6. A dual-axis precision slide cylinder according to claim 5, characterized in that, One side of the semi-circular plate (4) is fixedly connected to a first rubber pad (14), and one side of the telescopic seat (16) is fixedly connected to a second rubber pad (18).