An adjustable fixed plate speed-changing pneumatic cylinder

Abstract

This utility model relates to the field of pneumatic cylinder technology and discloses an adjustable fixed plate speed-changing pneumatic cylinder, including a piston rod. A rear cover is provided on the outer side of the piston rod. An annular groove is formed on the left side of the rear cover. Several identical slots are formed on the inner sidewall of the annular groove, and each slot is evenly distributed around the center line of the rear cover. A rotating ring is rotatably connected to the outer surface of the rear cover. A sensing fixed plate is fixedly installed on the outer surface of the rotating ring. A fixing rod passes through the inner wall of the sensing fixed plate. This adjustable fixed plate speed-changing pneumatic cylinder, by setting up a piston rod, a rear cover, an annular groove, slots, a rotating ring, a sensing fixed plate, a fixing rod, and a fastening nut, changes the structure of the upper part of the rear cover. The circumferential position of the sensing fixed plate can be adjusted by rotating the rotating ring on the rear cover, and it is fixed by the fixing rod and slots, so as to achieve convenient adjustment of the position of the sensing fixed plate and avoid the problem of troublesome position change after a single fixation.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic cylinder technology, specifically an adjustable fixed-plate variable speed pneumatic cylinder. Background Technology

[0002] A pneumatic cylinder is a pneumatic actuator that converts pneumatic energy into mechanical energy and performs linear reciprocating motion. It has a simple structure and reliable operation. When used to achieve reciprocating motion, it eliminates the need for a speed reduction device and has no transmission backlash, resulting in smooth movement. Therefore, it is widely used in the pneumatic systems of various machines. The output force of a pneumatic cylinder is directly proportional to the effective area of ​​the piston and the pressure difference between its two sides. A pneumatic cylinder is basically composed of a cylinder barrel and cylinder head, a piston and piston rod, a sealing device, a buffer device, and an exhaust device.

[0003] Variable speed pneumatic cylinders use induction fixing plates, which are typically fixed in a designated position using bolts or similar means. Once fixed, their position is difficult to change, making it troublesome to adjust their position. Therefore, those skilled in the art have provided a variable speed pneumatic cylinder with an adjustable fixing plate to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable fixed-plate variable speed pneumatic cylinder to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An adjustable fixed plate speed-changing pneumatic cylinder includes a piston rod, a rear cover on the outer side of the piston rod, an annular groove on the left side of the rear cover, and a plurality of identical slots on the inner sidewall of the annular groove, each slot being equidistantly distributed around the center line of the rear cover. A rotating ring is rotatably connected to the outer surface of the rear cover, and a sensing fixed plate is fixedly mounted on the outer surface of the rotating ring. A fixing rod passes through the inner wall of the sensing fixed plate, and a fastening nut is threadedly connected to the outer surface of the fixing rod. The right side of the fastening nut contacts the outer surface of the sensing fixed plate.

[0007] As a further improvement of this utility model: the inner wall of the sensing fixing plate is threaded with two fixing pins, and the outer surface of each fixing pin is threadedly connected to the inner wall of the rotating ring.

[0008] As a further improvement of this utility model: two fixing bolts are provided through the inner wall of the sensing fixing plate, and a fixing nut is threadedly connected to the outer surface of each fixing bolt, and the back of each fixing nut is in contact with the front of the sensing fixing plate.

[0009] As a further improvement of this utility model: a sensing fixing block is provided on the outer surface of the piston rod, and a buffer piston body is provided on the outer surface of the piston rod.

[0010] As a further embodiment of this utility model: a cylinder tube is fixedly installed on the right side of the rear cover, the outer surface of the buffer piston body is in contact with the inner wall of the cylinder tube, and a front cover is fixedly installed on the right side of the cylinder tube.

[0011] As a further improvement of this utility model: a valve plate is provided on the right side of the front cover, and the inner wall of the valve plate and the inner wall of the front cover are in contact with the outer surface of the piston rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model, by setting a piston rod, a rear cover, an annular groove, a slot, a rotating ring, a sensing fixing plate, a fixing rod, and a fastening nut, changes the structure of the upper part of the rear cover. It can adjust the circumferential position of the sensing fixing plate by rotating the rotating ring on the rear cover, and fix it by the fixing rod and the slot, so as to achieve the purpose of convenient adjustment of the position of the sensing fixing plate and avoid the trouble of changing the position of the sensing fixing plate after a single fixation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an adjustable fixed-plate variable speed pneumatic cylinder.

[0015] Figure 2 A three-dimensional sectional view of the piston rod in an adjustable fixed-plate variable speed pneumatic cylinder;

[0016] Figure 3 A three-dimensional sectional view of the cylinder tube in an adjustable fixed-plate variable speed pneumatic cylinder;

[0017] Figure 4 This is a three-dimensional sectional view of the rear cover of an adjustable fixed-plate variable speed pneumatic cylinder.

[0018] In the diagram: 1. Piston rod; 2. Valve plate; 3. Sensor fixing plate; 4. Sensor fixing block; 5. Rear cover; 6. Cylinder tube; 7. Front cover; 8. Fixing nut; 9. Fixing bolt; 10. Ring groove; 11. Fixing nail; 12. Buffer piston body; 13. Fastening nut; 14. Fixing rod; 15. Slot; 16. Rotary ring. Detailed Implementation

[0019] Please see Figure 1-4An adjustable fixed plate speed-changing pneumatic cylinder includes a piston rod 1, a rear cover 5 on the outer side of the piston rod 1, an annular groove 10 on the left side of the rear cover 5, and several identical slots 15 on the inner side wall of the annular groove 10, with each slot 15 being equidistantly distributed around the center line of the rear cover 5. A rotating ring 16 is rotatably connected to the outer surface of the rear cover 5, and a sensing fixed plate 3 is fixedly installed on the outer surface of the rotating ring 16. A fixing rod 14 passes through the inner wall of the sensing fixed plate 3, and a fastening nut 13 is threadedly connected to the outer surface of the fixing rod 14. The right side of the fastening nut 13 is in contact with the outer surface of the sensing fixed plate 3.

[0020] The inner wall of the sensing fixing plate 3 is threaded with two fixing pins 11. The outer surface of each fixing pin 11 is threaded to the inner wall of the rotating ring 16. The fixing pins 11 connect the sensing fixing plate 3 and the rotating ring 16, which facilitates the installation and removal of the sensing fixing plate 3. The inner wall of the sensing fixing plate 3 is provided with two fixing bolts 9. The outer surface of each fixing bolt 9 is threaded with a fixing nut 8. The back of each fixing nut 8 contacts the front of the sensing fixing plate 3. The fixing bolts 9 and fixing nuts 8 are used for the installation and fixing of one end of the sensing fixing plate 3.

[0021] A sensing fixing block 4 is provided on the outer surface of the piston rod 1, and a buffer piston body 12 is provided on the outer surface of the piston rod 1. The buffer piston body 12 serves to limit the rising speed of the needle valve, thereby achieving an ideal injection pattern. A cylinder tube 6 is fixedly installed on the right side of the rear cover 5. The outer surface of the buffer piston body 12 is in contact with the inner wall of the cylinder tube 6. A front cover 7 is fixedly installed on the right side of the cylinder tube 6. The cylinder tube 6 and the front cover 7, together with the rear cover 5, form the overall outer shell of the cylinder. A valve plate 2 is provided on the right side of the front cover 7. The inner wall of the valve plate 2 and the inner wall of the front cover 7 are both in contact with the outer surface of the piston rod 1. The function of the valve plate 2 is to control the intake and exhaust, forming compression inside the cylinder.

[0022] The working principle of this utility model is as follows: In mold design, molds are usually designed and manufactured according to the customer's product design drawings and dimensions. During the injection molding process, the soft and hard plastics of the mold are not firmly bonded, and they often separate, which wastes materials and time. At the same time, the non-adjustability of the mold reduces the product quality and yield. The inverted glue-gripping structure is adopted to save raw materials and time and improve efficiency. After the modification, the mold with the inverted glue-gripping structure aims to improve the product yield. During the use of the cylinder, the position of the sensing fixing plate 3 needs to be fixed. When fixing the long end of the sensing fixing plate 3, the fixing bolt 9 and the fixing nut 8 can be used to fix it. The position of the circumference of the sensing fixing plate 3 can be adjusted by rotating the sensing fixing plate 3 as needed. The sensing fixing plate 3 rotates on the back cover 5 in conjunction with the rotating ring 16. When it is rotated to a suitable position, the fixing rod 14 can be screwed into the slot 15 to fix the short end of the sensing fixing plate 3. Subsequently, the position can be changed by screwing the fixing rod 14 according to the changing needs, which is quite convenient.

[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A variable fixed vane gas pressure cylinder comprising a piston rod (1), characterized in that: A rear cover (5) is provided on the outer side of the piston rod (1). An annular groove (10) is provided on the left side of the rear cover (5). Several identical slots (15) are provided on the inner side wall of the annular groove (10). Each slot (15) is distributed at equal distances around the center line of the rear cover (5). A rotating ring (16) is rotatably connected to the outer surface of the rear cover (5). A sensing fixing plate (3) is fixedly installed on the outer surface of the rotating ring (16). A fixing rod (14) is passed through the inner wall of the sensing fixing plate (3). A fastening nut (13) is threadedly connected to the outer surface of the fixing rod (14). The right side of the fastening nut (13) is in contact with the outer surface of the sensing fixing plate (3).

2. A variable fixed vane pressure cylinder according to claim 1, wherein: The inner wall of the sensing fixing plate (3) is threaded with two fixing pins (11), and the outer surface of each fixing pin (11) is threaded with the inner wall of the swivel (16).

3. A variable stroke pneumatic cylinder with fixed vane according to claim 1, characterized in that: The inner wall of the sensing fixing plate (3) is provided with two fixing bolts (9), and the outer surface of each fixing bolt (9) is threaded with a fixing nut (8). The back of each fixing nut (8) is in contact with the front of the sensing fixing plate (3).

4. The variable stroke pneumatic cylinder with fixed vane according to claim 1, characterized in that: The piston rod (1) has an induction fixing block (4) on its outer surface and a buffer piston body (12) on its outer surface.

5. A variable stroke pneumatic cylinder with a fixed vane according to claim 4, characterized in that: A cylinder tube (6) is fixedly installed on the right side of the rear cover (5), the outer surface of the buffer piston body (12) is in contact with the inner wall of the cylinder tube (6), and a front cover (7) is fixedly installed on the right side of the cylinder tube (6).

6. A variable stroke pneumatic cylinder with a fixed vane according to claim 5, characterized in that: A valve plate (2) is provided on the right side of the front cover (7), and the inner wall of the valve plate (2) and the inner wall of the front cover (7) are in contact with the outer surface of the piston rod (1).

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