CN211820169U

CN211820169U - Air cylinder

Info

Publication number: CN211820169U
Application number: CN202020178764.0U
Authority: CN
Inventors: 唐海元; 张赟; 林毅超; 张金林; 赵晓飞; 罗育明
Original assignee: Shenzhen Flyta Technology Development Co ltd
Current assignee: Shenzhen Flyta Technology Development Co ltd
Priority date: 2020-02-17
Filing date: 2020-02-17
Publication date: 2020-10-30
Anticipated expiration: 2030-02-17

Abstract

A cylinder comprising a body (100) and a piston rod (7); an accommodating space is formed in the main body (100), and the cylinder further comprises a partition plate (2) which divides the accommodating space into an upper space and a lower space; the partition plate (2) is provided with a first through hole; the piston rod (7) comprises a rod part (70) arranged in the first through hole in a penetrating way, and a piston part (71) which is formed on the outer peripheral surface of the rod part (70) and divides the upper space into a first space and a second space; the main body (100) is provided with a first air hole (8) directly communicated with the first space and a second air hole (11) directly communicated with the second space; and the top of the stem (70) is outside the body (100) for connection to an external gripping element; the cylinder also comprises a first base (4) sleeved on the piston rod (7); the cylinder further comprises a spring (13) in the lower space and connected between the partition plate (2) and the first base (4). The utility model discloses a cylinder modern design, the practicality is strong.

Description

Air cylinder

Technical Field

The utility model relates to the field of machinary, especially, relate to a cylinder.

Background

In the processing industry, the cylinder is used more frequently as a tool. However, existing cylinders require the use of compressed air for both clamping and unclamping. The air source stability influences, and the clamping force of the air cylinder in the clamping stage is easy to fluctuate, so that the processing stability is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned technical problem, a cylinder is proposed.

The utility model provides a technical scheme as follows:

the utility model provides an air cylinder, which comprises a main body and a piston rod; the cylinder also comprises a partition plate which is arranged in the main body and divides the accommodating space into an upper space and a lower space;

the partition plate is provided with a first through hole; the piston rod comprises a rod part which is slidably arranged in the first through hole in a penetrating way, and a piston part which is formed on the peripheral surface of the rod part, contacts with the inner wall of the main body and divides the upper space into a first space and a second space; the main body is provided with a first air hole directly communicated with the first space and a second air hole directly communicated with the second space; the top of the main body is also provided with a second through hole, and the rod part can be slidably arranged in the second through hole in a penetrating way; the top of the rod part is positioned outside the main body and is used for connecting an external clamping element;

the cylinder also comprises a first base which is sleeved on the piston rod and is positioned in the lower space; the cylinder further includes a spring in the lower space and connected between the partition plate and the first base.

The utility model discloses in foretell cylinder, first space is located the top in second space.

In the above cylinder of the present invention, the cylinder further includes an adjusting nut sleeved on the rod portion in a threaded connection manner, the end cover slidably sleeved on the rod portion and supported by the adjusting nut, and the first base slidably sleeved on the rod portion; the end cover is also relatively rotatably mounted on the first base through a bearing.

In the above cylinder of the present invention, the bearing includes a first ring portion and a second ring portion rotatably connected to the first ring portion; the first ring part is fixedly connected with the first base, and the second ring part is fixedly connected with the end cover.

In the cylinder of the utility model, the spacing plate is fixedly connected with the main body through the first bolt; the first bolt passes through the body from the outside of the body and is fixedly attached to the outer peripheral portion of the partition plate.

In the above cylinder of the present invention, the first seal ring contacting the inner wall of the main body is mounted on the outer peripheral portion of the piston portion.

The utility model discloses in foretell cylinder, the space bar is provided with the second sealing washer with pole portion contact on the inner wall of first through-hole.

The utility model discloses in foretell cylinder, the third sealing washer with the contact of main part inner wall is installed to the peripheral part of space bar.

The utility model discloses in foretell cylinder, the main part still includes the cylinder body and seals the second base of cylinder body bottom, and accommodation space is enclosed in the cooperation of cylinder body and second base.

The utility model discloses a cylinder is through adopting piston portion for take place deformation rather than the indirect spring of being connected, store elastic potential energy with this accumulation, and with its release in due time, alleviate the fluctuation of having avoided outside clamping element clamp force even. Meanwhile, the compression amount of the spring is adjusted by adopting an adjusting nut. The utility model discloses a cylinder modern design, the practicality is strong.

Drawings

The invention will be further explained with reference to the drawings and examples, wherein:

fig. 1 shows a schematic structural diagram of a cylinder according to a preferred embodiment of the present invention.

Detailed Description

The utility model discloses the technical problem that will solve is: the existing air cylinder needs to use compressed air when clamping and loosening. The air source stability influences, and the clamping force of the air cylinder in the clamping stage is easy to fluctuate, so that the processing stability is influenced. The utility model discloses the technical thinking that just this technical problem provided is: a cylinder is constructed to reduce or even avoid fluctuations in the clamping force of an external clamping member by virtue of the spring.

In order to make the technical purpose, technical solution and technical effects of the present invention more clear so as to facilitate those skilled in the art to understand and implement the present invention, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, fig. 1 is a schematic structural diagram of a cylinder according to a preferred embodiment of the present invention. Specifically, the cylinder includes a main body 100 and a piston rod 7; an accommodating space is formed inside the main body 100, and the cylinder further includes a partition plate 2 installed inside the main body 100 and dividing the accommodating space into an upper space and a lower space;

the partition plate 2 is provided with a first through hole; the piston rod 7 comprises a rod part 70 which is slidably arranged in the first through hole in a penetrating way, and a piston part 71 which is formed on the outer peripheral surface of the rod part 70, contacts with the inner wall of the main body 100 and divides the upper space into a first space and a second space; the main body 100 is provided with a first air hole 8 directly communicated with the first space and a second air hole 11 directly communicated with the second space; the top of the main body 100 is further provided with a second through hole, and the rod part 70 is slidably inserted into the second through hole; and the top of the stem 70 is outside the body 100 for connection to an external clamping element (not shown);

the cylinder also comprises a first base 4 which is sleeved on the piston rod 7 and is positioned in the lower space; the cylinder also comprises a spring 13 in the lower space and connected between the partition plate 2 and the first base 4.

In the above technical solution, when the second space is filled with air through the second air hole 11, the pressure inside the second space increases continuously, and the piston portion 71 moves toward the first space, so that the air inside the first space flows out of the cylinder through the first air hole 8. Meanwhile, as the piston portion 71 moves, the spring 13 is deformed, and elastic potential energy is accumulated in the spring 13. When air flows out of the cylinder from the second air hole 11, the second space pressure decreases, and the spring 13 releases elastic potential energy, and the piston portion 71 is moved toward the second space. With the up-and-down movement of the piston portion 71, a loosening action and a clamping action of the outer clamping element are achieved, whereas fluctuations in the clamping force of the outer clamping element are reduced or even avoided by the action of the spring 13.

Further, in the present embodiment, the first space is located above the second space. Thus, when the second space is inflated through the second air hole 11, the pressure inside the second space is increased and the piston portion 71 moves upward, so that the air inside the first space flows out of the cylinder through the first air hole 8. Meanwhile, as the piston portion 71 moves, the spring 13 is compressed and deformed, and elastic potential energy is accumulated in the spring 13. When air flows out of the cylinder from the second air hole 11, the second space pressure decreases, and the spring 13 releases elastic potential energy to move the piston portion 71 downward.

It is understood that in other embodiments, the first space may be located below the second space. Thus, when the second space is inflated through the second air hole 11, the pressure inside the second space is increased and the piston portion 71 moves downward, so that the air inside the first space flows out of the cylinder through the first air hole 8. Meanwhile, as the piston portion 71 moves, the spring 13 is subjected to tensile deformation, and elastic potential energy is accumulated in the spring 13. When air flows out of the cylinder from the second air hole 11, the second space pressure decreases, and the spring 13 releases elastic potential energy to move the piston portion 71 upward.

Further, in this embodiment, the cylinder further includes an adjusting nut 6 that is sleeved on the rod portion 70 in a threaded connection manner, an end cover 5 that is slidably sleeved on the rod portion 70 and supported by the adjusting nut 6, and the first base 4 is slidably sleeved on the rod portion 70; the end cap 5 is also relatively rotatably mounted on the first base 4 by means of a bearing 14. Here, by rotating the adjusting nut 6, the bearing 14 is moved up and down, and the first base 4 is moved up and down to adjust the compression amount of the spring 13.

Further, in the present embodiment, the bearing 14 includes a first ring portion 141 and a second ring portion 142 rotatably connected to the first ring portion 141; the first ring 141 is fixedly connected with the first base 4, and the second ring 142 is fixedly connected with the end cap 5.

Further, in the present embodiment, the partition plate 2 is fixedly coupled to the main body 100 by the first bolt 3. Specifically, the first bolt 3 passes through the body 100 from the outside of the body 100 and is fixedly attached to the outer peripheral portion of the partition plate 2.

Further, in the present embodiment, the first seal ring 9 is attached to the outer peripheral portion of the piston portion 71 so as to be in contact with the inner wall of the main body 100. The partition plate 2 is provided with a second seal ring 10 on the inner wall of the first through hole, which contacts the rod portion 70. A third seal ring 12 is attached to the outer periphery of the partition plate 2 to be in contact with the inner wall of the body 100. The first seal ring 9, the second seal ring 10, and the third seal ring 12 provide isolation between the first space and the second space, and between the upper space and the lower space.

Further, in this embodiment, the main body 100 further includes a cylinder 1 and a second base 15 for closing the bottom of the cylinder 1, and the cylinder 1 and the second base 15 cooperate to form an accommodating space. Preferably, in the present embodiment, the cylinder block 1 and the second mount 15 are fixedly connected by the second bolt 16.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.

Claims

1. A cylinder, characterized by comprising a body (100) and a piston rod (7); an accommodating space is formed in the main body (100), and the cylinder further comprises a partition plate (2) which is arranged in the main body (100) and divides the accommodating space into an upper space and a lower space;

the partition plate (2) is provided with a first through hole; the piston rod (7) comprises a rod part (70) which is slidably arranged in the first through hole in a penetrating way, and a piston part (71) which is formed on the outer peripheral surface of the rod part (70), contacts with the inner wall of the main body (100) and divides the upper space into a first space and a second space; the main body (100) is provided with a first air hole (8) directly communicated with the first space and a second air hole (11) directly communicated with the second space; the top of the main body (100) is also provided with a second through hole, and the rod part (70) can be slidably arranged in the second through hole in a penetrating way; and the top of the stem (70) is outside the body (100) for connection to an external gripping element;

the cylinder also comprises a first base (4) which is sleeved on the piston rod (7) and is positioned in the lower space; the cylinder further comprises a spring (13) in the lower space and connected between the partition plate (2) and the first base (4).

2. The cylinder of claim 1, wherein the first space is located above the second space.

3. The cylinder according to claim 1, further comprising an adjusting nut (6) sleeved on the rod portion (70) in a threaded connection manner, an end cover (5) slidably sleeved on the rod portion (70) and supported by the adjusting nut (6), and the first base (4) slidably sleeved on the rod portion (70); the end cover (5) is also relatively rotatably mounted on the first base (4) through a bearing (14).

4. A cylinder according to claim 3, characterized in that the bearing (14) comprises a first ring (141) and a second ring (142) rotatably connected to the first ring (141); the first ring part (141) is fixedly connected with the first base (4), and the second ring part (142) is fixedly connected with the end cover (5).

5. A cylinder according to claim 1, characterized in that the partition plate (2) is fixedly connected to the body (100) by means of a first bolt (3); the first bolt (3) is inserted through the body (100) from the outside of the body (100) and is fixedly attached to the outer peripheral portion of the partition plate (2).

6. The cylinder according to claim 1, wherein the outer peripheral portion of the piston portion (71) is fitted with a first seal ring (9) which contacts the inner wall of the main body (100).

7. Cylinder according to claim 1, characterised in that the partition plate (2) is provided with a second sealing ring (10) on the inner wall of the first through hole, in contact with the stem (70).

8. A cylinder according to claim 1, characterized in that the outer periphery of the partition plate (2) is fitted with a third gasket (12) in contact with the inner wall of the body (100).

9. The cylinder according to claim 1, characterized in that the main body (100) further comprises a cylinder body (1) and a second base (15) closing the bottom of the cylinder body (1), and the cylinder body (1) and the second base (15) are matched to form a containing space.