A stroke-adjustable cylinder device

Abstract

The utility model relates to a kind of stroke-adjustable cylinder devices, including mounting sleeve, the inner wall of mounting sleeve is provided with stroke adjustable mechanism, the end of stroke adjustable mechanism is provided with gas control mechanism;The stroke adjustable mechanism includes air cylinder, the inner wall of air cylinder is fixedly installed on the inner wall of mounting sleeve, the inner wall of air cylinder is slidably connected with limit ring.By the design of stroke adjustable mechanism whole, loosening locking bolt, with it can be left and right sliding on the inner wall of positioning sleeve to adjusting rod, the left and right positions of limit ring in air cylinder are adjusted synchronously, the position of piston is adjusted, that is, the function of adjusting stroke is realized, without replacing cylinder, stroke length can be adjusted in real time according to workpiece size change or process requirement, significantly improve the compatibility and change speed of production line to different products, support small batch, multi-species production mode, and by matching actual stroke, reduce compressed air consumption, increase the utility of the structure.

Description

Technical Field

[0001] This utility model relates to the field of cylinder device technology, and in particular to an adjustable stroke cylinder device. Background Technology

[0002] A cylinder is an actuator that converts compressed air energy into mechanical energy. It mainly consists of a cylinder barrel, piston, piston rod, seals, and end caps. It uses compressed air to drive the piston in a linear reciprocating motion, thereby outputting force and displacement. It is widely used in automation control, machining, packaging equipment, and other fields.

[0003] Traditional cylinder devices do not have the function of adjusting the stroke. Because the stroke is fixed, the range of motion cannot be dynamically adjusted according to the actual working conditions, which limits the application scenarios. Fixed stroke may cause energy waste (such as more compressed air is consumed when using a long stroke cylinder for short stroke tasks), and it is difficult to adapt to process changes or upgrade requirements. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing an adjustable stroke cylinder device, the specific technical solution of which is as follows:

[0005] An adjustable stroke cylinder device includes a mounting sleeve, an adjustable stroke mechanism is provided on the inner wall of the mounting sleeve, and a gas control mechanism is provided at the end of the adjustable stroke mechanism.

[0006] The adjustable stroke mechanism includes an air cylinder, which is fixedly installed on the inner wall of the mounting sleeve. A limit ring is slidably connected to the inner wall of the air cylinder. An adjusting rod is fixedly installed on the side of the limit ring. A positioning sleeve is fixedly installed on the right side of the air cylinder. The adjusting rod is movably connected to the inner wall of the positioning sleeve. A locking bolt is threadedly connected to the outer wall of the positioning sleeve.

[0007] As an improvement to the above technical solution, an extension rod is movably inserted into the right side of the adjusting rod, and an end block is movably inserted into the right side of the extension rod. Hidden grooves are provided on the outer walls of both the adjusting rod and the extension rod, and an assembly bolt is threaded into the inner cavity of the hidden groove.

[0008] As an improvement to the above technical solution, a piston is slidably connected to the inner wall of the air cylinder, an extension arm is fixedly installed on the side of the piston, the end of the extension arm away from the piston extends to the right side of the air cylinder, a spring is fixedly installed on the right side of the piston, and the end of the spring away from the piston is fixedly installed on the right side of the inner wall of the air cylinder.

[0009] As an improvement to the above technical solution, a through groove is provided on the right side of the air cylinder, and a filter screen is detachably connected to the inner wall of the through groove.

[0010] As an improvement to the above technical solution, the gas control mechanism includes a hollow block, which is fixedly connected to the left side of the gas cylinder. An exhaust solenoid valve is fixedly connected to the left side of the hollow block, and an intake solenoid valve is fixedly connected to the left side of the hollow block.

[0011] As an improvement to the above technical solution, a control box is fixedly connected to the middle of the intake solenoid valve, an inner partition is fixedly installed on the inner wall of the control box, a cylinder is movably connected to the inner wall of the inner partition, and an array of through holes is opened on the outer wall of the cylinder.

[0012] As an improvement to the above technical solution, the top of the control box is threadedly connected to a threaded rod, the bottom of which extends into the inner cavity of the control box and is fixedly connected to the top of the cylinder.

[0013] The beneficial effects of this utility model are:

[0014] Through the overall design of the stroke-adjustable mechanism, by loosening the locking bolt, the adjusting rod can slide left and right on the inner wall of the positioning sleeve, simultaneously adjusting the left and right position of the limiting ring inside the air cylinder, and adjusting the position of the piston that is limited, thus realizing the function of adjusting the stroke. The stroke length can be adjusted in real time according to the changes in workpiece size or process requirements without replacing the cylinder, significantly improving the compatibility of the production line with different products and the changeover speed. It supports small-batch, multi-variety production mode, and reduces compressed air consumption by matching the actual stroke, increasing the practicality of this structure. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the air cylinder in this utility model;

[0017] Figure 3 This is a schematic diagram of the positioning sleeve and adjusting rod in this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the adjusting rod, the extension rod, and the end block in this utility model;

[0019] Figure 5 This is a schematic diagram of the gas control mechanism in this utility model;

[0020] Figure 6 This is a schematic diagram of the internal structure of the control box in this utility model.

[0021] Reference numerals: 1. Mounting sleeve; 2. Adjustable stroke mechanism; 21. Air cylinder; 211. Filter screen; 22. Piston; 23. Extension arm; 24. Spring; 25. Positioning sleeve; 251. Locking bolt; 26. Adjusting rod; 261. Extension rod; 262. End block; 263. Hidden groove; 264. Assembly bolt; 27. Limiting ring; 3. Gas control mechanism; 31. Hollow block; 32. Exhaust solenoid valve; 33. Intake solenoid valve; 34. Control box; 35. Inner partition; 36. Cylinder; 37. Arrayed through holes; 38. Threaded rod. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] Example

[0024] An adjustable stroke cylinder device, please refer to Figures 1-6 It includes an installation sleeve 1, an adjustable stroke mechanism 2 is provided on the inner wall of the installation sleeve 1, and a gas control mechanism 3 is provided at the end of the adjustable stroke mechanism 2;

[0025] The stroke adjustable mechanism 2 includes an air cylinder 21, which is fixedly installed on the inner wall of the mounting sleeve 1. A limit ring 27 is slidably connected to the inner wall of the air cylinder 21. An adjusting rod 26 is fixedly installed on the side of the limit ring 27. A positioning sleeve 25 is fixedly installed on the right side of the air cylinder 21. The adjusting rod 26 is movably connected to the inner wall of the positioning sleeve 25. A locking bolt 251 is threadedly connected to the outer wall of the positioning sleeve 25. If the stroke of this structure needs to be adjusted, the locking bolt 251 is loosened first. Then, the adjusting rod 26 can be slid left and right on the inner wall of the positioning sleeve 25, and the left and right positions of the limit ring 27 inside the air cylinder 21 are adjusted simultaneously. This changes the position where the piston 22 is limited, thus realizing the function of adjusting the stroke. This significantly improves the compatibility of the production line with different products and the changeover speed, and reduces compressed air consumption by matching the actual stroke.

[0026] like Figure 4As shown, an extension rod 261 is movably inserted into the right side of the adjusting rod 26, and an end block 262 is movably inserted into the right side of the extension rod 261. The outer walls of both the adjusting rod 26 and the extension rod 261 are provided with hidden grooves 263. An assembly bolt 264 is threaded into the inner cavity of the hidden groove 263. If it is necessary to further shorten the stroke, an appropriate number of extension rods 261 can be assembled between the adjusting rod 26 and the end block 262 to extend the overall length of the adjusting rod 26, so that the position of the limiting ring 27 is further to the left. During assembly, several extension rods 261 and end blocks 262 are inserted into the tail of the adjusting rod 26 by means of insertion, and then the assembly bolt 264 is tightened. The actual length of the extension rod 261 is designed according to the usage environment, so that the user can calculate the length.

[0027] like Figure 2 As shown, a piston 22 is slidably connected to the inner wall of the air cylinder 21. An extension arm 23 is fixedly installed on the side of the piston 22. The end of the extension arm 23 away from the piston 22 extends to the right side of the air cylinder 21. A spring 24 is fixedly installed on the right side of the piston 22. The end of the spring 24 away from the piston 22 is fixedly installed on the right side of the inner wall of the air cylinder 21. After the driving gas enters the interior of the air cylinder 21, it can push the piston 22 to slide in the inner cavity of the air cylinder 21, and simultaneously drive the extension arm 23 to move to the right to perform the pushing work. At the same time, it will compress the spring 24. When the gas inside the air cylinder 21 is discharged, the piston 22 can be reset by the return force of the spring 24.

[0028] like Figure 2 As shown, a through groove is provided on the right side of the air cylinder 21, and a filter screen 211 is detachably connected to the inner wall of the through groove. When the piston 22 slides, the air inside the air cylinder 21 will flow through the filter screen 211. Due to the design of the filter screen 211, the incoming air can be filtered to ensure the stability of the operation of this structure. The filter screen 211 is installed on the air cylinder 21 with screws, and the user can disassemble and clean it.

[0029] like Figure 5 As shown, the gas control mechanism 3 includes a hollow block 31, which is fixedly connected to the left side of the air cylinder 21. An exhaust solenoid valve 32 is fixedly connected to the left side of the hollow block 31, and an intake solenoid valve 33 is fixedly connected to the left side of the hollow block 31. In use, the gas source is connected to the end of the intake solenoid valve 33, and the intake solenoid valve 33 is opened to allow gas to pass through the hollow block 31 and be delivered into the interior of the air cylinder 21. The exhaust solenoid valve 32 is opened to discharge the gas inside the air cylinder 21 for use.

[0030] like Figure 6As shown, a control box 34 is fixedly connected to the middle of the air intake solenoid valve 33. An inner partition 35 is fixedly installed on the inner wall of the control box 34. A cylinder 36 is movably connected to the inner wall of the inner partition 35. An array of through holes 37 is opened on the outer wall of the cylinder 36. A threaded rod 38 is threadedly connected to the top of the control box 34. The bottom of the threaded rod 38 extends into the inner cavity of the control box 34 and is fixedly connected to the top of the cylinder 36. If the air intake speed inside the air cylinder 21 is too fast, it may affect the safety of the items. If the air intake speed is too slow, it may affect the efficiency. The user can adjust the air intake speed from the control box 34. Rotating the threaded rod 38 can drive the cylinder 36 to rise and fall relative to the inner partition 35. By selecting an appropriate number of array through holes 37 for gas to pass through, the function of controlling the air intake speed is realized, which is convenient for the user.

[0031] Working principle: When in use, the air source is connected to the end of the air intake solenoid valve 33, and the air intake solenoid valve 33 is opened. Gas can be delivered into the air cylinder 21 through the hollow block 31. After the gas enters the air cylinder 21, it can push the piston 22 to slide in the inner cavity of the air cylinder 21, and simultaneously drive the extension arm 23 to move to the right to perform the pushing work. At the same time, the spring 24 is compressed. Then the air intake solenoid valve 33 is closed, and the exhaust solenoid valve 32 is opened to discharge the gas inside the air cylinder 21. Through the return force of the spring 24, the piston 22 can be driven to return to its original position. If the stroke of this structure needs to be adjusted, first loosen the locking bolt 251, and then the adjusting rod 26 can be slid left and right on the inner wall of the positioning sleeve 25. Simultaneously adjust the left and right position of the limiting ring 27 inside the air cylinder 21, change the position of the piston 22 being limited, and thus realize the function of adjusting the stroke.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cylinder device with adjustable stroke, characterized in that: Includes an installation sleeve (1), on the inner wall of the installation sleeve (1) is a stroke adjustable mechanism (2), and at the end of the stroke adjustable mechanism (2) is a gas control mechanism (3); The adjustable travel mechanism (2) includes an air cylinder (21), which is fixedly installed on the inner wall of the mounting sleeve (1). A limit ring (27) is slidably connected to the inner wall of the air cylinder (21). An adjusting rod (26) is fixedly installed on the side of the limit ring (27). A positioning sleeve (25) is fixedly installed on the right side of the air cylinder (21). The adjusting rod (26) is movably connected to the inner wall of the positioning sleeve (25). A locking bolt (251) is threadedly connected to the outer wall of the positioning sleeve (25).

2. The adjustable stroke cylinder device according to claim 1, characterized in that: An extension rod (261) is movably inserted into the right side of the adjusting rod (26), and an end block (262) is movably inserted into the right side of the extension rod (261). A hidden groove (263) is provided on the outer wall of both the adjusting rod (26) and the extension rod (261), and an assembly bolt (264) is threaded into the inner cavity of the hidden groove (263).

3. The adjustable stroke cylinder device according to claim 1, characterized in that: A piston (22) is slidably connected to the inner wall of the air cylinder (21). An extension arm (23) is fixedly installed on the side of the piston (22). The end of the extension arm (23) away from the piston (22) extends to the right side of the air cylinder (21). A spring (24) is fixedly installed on the right side of the piston (22). The end of the spring (24) away from the piston (22) is fixedly installed on the right side of the inner wall of the air cylinder (21).

4. The adjustable stroke cylinder device according to claim 3, characterized in that: The air cylinder (21) has a through groove on its right side, and a filter screen (211) is detachably connected to the inner wall of the through groove.

5. The adjustable stroke cylinder device according to claim 1, characterized in that: The gas control mechanism (3) includes a hollow block (31), which is fixedly connected to the left side of the gas cylinder (21). An exhaust solenoid valve (32) is fixedly connected to the left side of the hollow block (31), and an intake solenoid valve (33) is fixedly connected to the left side of the hollow block (31).

6. The adjustable stroke cylinder device according to claim 5, characterized in that: A control box (34) is fixedly connected to the middle of the intake solenoid valve (33). An inner partition (35) is fixedly installed on the inner wall of the control box (34). A cylinder (36) is movably connected to the inner wall of the inner partition (35). An array of through holes (37) is opened on the outer wall of the cylinder (36).

7. The adjustable stroke cylinder device according to claim 6, characterized in that: The top of the control box (34) is threadedly connected to a threaded rod (38), the bottom of which extends into the inner cavity of the control box (34) and is fixedly connected to the top of the cylinder (36).

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