Rotary oil cylinder integrating stroke detection, water injection and gas injection functions

Abstract

The utility model provides a rotary oil cylinder integrating stroke detection, water injection and gas injection functions. The rotary oil cylinder comprises a piston with a piston rod, a cylinder body containing the piston and an oil distributor connected to the piston rod in a sleeved mode. A first injection opening is formed in the oil separator, and the first injection opening is configured to be a water injection or gas injection opening; the stroke adjusting mechanism is arranged at one end of the piston rod and comprises at least two mounting plates and proximity switches arranged on the mounting plates; and a moving distance for the telescopic movement of the piston rod is formed between the two proximity switches. The oil distributor is arranged to be matched with the oil seal to seal the water and gas injection position of the piston, the technical requirement that one end of the piston extends out of the oil distributor to conduct stroke adjustment setting is met, and compatible setting of water and gas injection structural design and stroke adjustment control is achieved.

Description

Technical Field

[0001] This utility model relates to the field of rotary cylinder technology, and in particular to a rotary cylinder that integrates stroke detection, water injection, and air injection functions. Background Technology

[0002] A rotary cylinder uses hydraulic oil to drive a piston to reciprocate within the cylinder, thereby extending and retracting the piston rod to meet the clamping and releasing operations of machine tool fixtures. To improve the working stability and reliability of hydraulic cylinders, existing rotary cylinders employ structural designs with water or air injection holes to cool and clean the working end; or they use sensors at the non-working end for stroke adjustment to achieve precise control of the output shaft. However, to improve the airtightness of the rotary cylinder, existing rotary cylinders typically use a sealed cylinder head at one end when incorporating water or air injection holes, completely enclosing one end of the piston rod within the cylinder body. This makes it incompatible with the technical requirement of using sensors for stroke adjustment at the non-working end of the piston. Utility Model Content

[0003] To overcome the problems existing in related technologies, this utility model provides a rotary cylinder that integrates stroke detection, water injection, and air injection functions. By setting an oil distributor in conjunction with an oil seal, the water injection and air injection positions of the piston are sealed, and the technical requirement that one end of the piston extends outside the oil distributor for stroke adjustment is met, thus realizing the compatibility of water injection and air injection structure design and stroke adjustment control.

[0004] This utility model provides a rotary cylinder that integrates stroke detection, water injection, and air injection functions. The rotary cylinder includes: a piston with a piston rod, a cylinder body that houses the piston, and an oil distributor sleeved on the piston rod.

[0005] The oil separator is provided with a first injection port, which is configured as a water injection port or an air injection port.

[0006] The stroke adjustment mechanism is disposed at one end of the piston rod, and the stroke adjustment mechanism includes at least two mounting plates and a proximity switch disposed on the mounting plates;

[0007] The two proximity switches form the travel distance of the piston rod's extension and retraction movement.

[0008] Furthermore, the oil separator includes an oil separator body and an oil separator end cap, and the first injection port is disposed on the oil separator end cap;

[0009] The oil separator body is provided with a second injection port, which is configured as an oil injection port.

[0010] Furthermore, the mounting plate is disposed on the oil distributor end cover, and the proximity switch is adjustablely mounted on the mounting plate based on screws.

[0011] Furthermore, a first oil seal is provided at one end of the oil distributor end cap, and a second oil seal is provided at the other end of the oil distributor end cap.

[0012] Furthermore, the rotary cylinder also includes a cylinder head, which matches the cylinder body;

[0013] The piston is housed in the cylinder body, and the piston rod extends out of the cylinder body through the through hole in the cylinder head to form the working end of the rotary cylinder.

[0014] Furthermore, the cylinder is divided into a first oil chamber and a second oil chamber based on the piston.

[0015] Furthermore, the oil separator is provided with a second injection port, and the oil separator is provided with a first oil passage connected to the first oil chamber and a second oil passage connected to the second oil chamber.

[0016] The first oil passage and the second oil passage are connected to the second injection port.

[0017] Furthermore, a sensing plate is provided at one end of the piston rod extending outside the distributor end cover, and the sensing plate is matched with the proximity switch.

[0018] This utility model provides a rotary cylinder that integrates stroke detection, water injection, and air injection functions. By setting an oil distributor and an oil seal, the water injection and air injection positions of the piston are sealed, and the technical requirement of one end of the piston extending outside the oil distributor for stroke adjustment is met, thus realizing the compatibility of water injection and air injection structure design and stroke adjustment control. Attached Figure Description

[0019] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally represent like parts.

[0020] Figure 1 This is a schematic diagram of the rotary cylinder in this utility model;

[0021] Figure 2 This is a cross-sectional view of the rotary hydraulic cylinder in this utility model. Detailed Implementation

[0022] 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.

[0023] Please refer to Figure 1 and Figure 2 This utility model provides a rotary cylinder integrating stroke detection, water injection, and air injection functions. The rotary cylinder includes: a piston 5 with a piston rod 51, a cylinder body 2 housing the piston 5, and an oil distributor 4 sleeved on the piston rod 51. One end of the rotary cylinder is provided with a stroke adjustment mechanism 1, which is used to adjust the shaft extension working stroke of the rotary cylinder. By adjusting the piston 5 shaft extension stroke of the rotary cylinder through the stroke adjustment mechanism 1, the rotary cylinder can be adapted to the clamping requirements of different types and specifications of clamps and tools, thereby improving the versatility of the rotary cylinder.

[0024] The piston rod 51 has a hollow structure inside and is provided with a first inlet. The oil separator 4 is provided with a first injection port 421. Based on the first injection port 421, the first inlet, and the hollow structure, a water injection or air injection channel is formed in the rotary cylinder 2. Water or air can be injected into the piston 5 of the rotary cylinder through the first injection port 421, that is, water or air can be circulated to clean the inside of the piston 5.

[0025] Furthermore, the other end of the cylinder body 2 is configured as a clamping working end, and the end opening of the hollow structure of the piston 5 is located inside the clamping working end. That is, the output port of the water injection or air injection channel is located inside the clamping working end of the rotary cylinder. Water or air is supplied to the rotary cylinder through the first injection port 421, which can realize water cooling or air cooling of the fixture or tool at the working end of the rotary cylinder, thereby improving the machining quality of machine tool cutting, and at the same time, the fixture or tool can be cleaned.

[0026] Specifically, the rotary cylinder also includes a cylinder head 3, which matches the cylinder body 2. The piston 5 is housed in the cylinder body 2, and the piston rod 51 extends outside the cylinder body 2 through the through hole of the cylinder head 3. The cylinder body 2 is divided into a first oil chamber and a second oil chamber based on the piston 5. By controlling the movement of hydraulic oil in the first oil chamber and the second oil chamber, the piston 5 can be driven to reciprocate within the cylinder body 2.

[0027] Specifically, the oil distributor 4 is provided with a second injection port 411, and the oil distributor 4 is provided with a first oil passage connected to the first oil chamber and a second oil passage connected to the second oil chamber. The first oil passage and the second oil passage are connected to the second injection port 411. The rotary cylinder can be connected to an external hydraulic oil system based on the second injection port 411 to realize the working drive of the rotary cylinder.

[0028] Specifically, the oil separator 4 includes an oil separator body 41 and an oil separator end cap 42. The first injection port 421 is disposed on the oil separator end cap 42, and the second injection port 411 is disposed on the oil separator body 41. The stroke adjustment mechanism 1 includes a mounting plate 12 and a proximity switch 11 disposed on the mounting plate 12.

[0029] The mounting plate 12 is disposed on the distributor end cover 42, and the proximity switch 11 is fixed on the mounting plate 12. One end of the piston rod 51 extends outside the distributor end cover 42, and the sensing end of the proximity switch 11 faces the portion of the piston rod 51 extending outside the distributor end cover 42. A preset distance is formed between the proximity switch 11 and the piston rod 51. The proximity switch 11 is used to detect the extension and retraction stroke of the piston rod 51.

[0030] Furthermore, a first oil seal is provided at one end of the distributor end cover 42, and a second oil seal is provided at the other end of the distributor end cover 42. Based on the first oil seal and the second oil seal, the water injection and air injection positions of the piston rod 51 are sealed to prevent liquid leakage inside the distributor 4 and ensure the working airtightness of the rotary cylinder.

[0031] Furthermore, in this embodiment, the stroke adjustment mechanism 1 is provided with two sets of mounting plates 12 and proximity switches 11. One of the proximity switches 11 is used to mark the extension limit position of the piston rod 51, and the other proximity switch 11 is used to mark the retraction limit position of the piston rod 51. Based on the two sets of proximity switches 11, the extension and retraction distance of the piston rod 51 can be precisely adjusted.

[0032] Specifically, a sensing plate is provided at one end of the piston rod 51 extending outside the oil distributor end cover 42. The sensing plate is matched with the proximity switch 11. When the sensing plate of the piston rod 51 moves into the sensing range of the proximity switch 11, the control system of the rotary cylinder can control the working state of the rotary cylinder according to the detection of the proximity switch 11. That is, when the sensing plate triggers the proximity switch 11, the oil supply to the rotary cylinder can be stopped based on the feedback signal of the proximity switch 11, so as to achieve precise control of the piston rod 51.

[0033] Furthermore, in this embodiment, the oil separator end cap 42 is provided with two sets of proximity switches 11. Based on the two sets of proximity switches 11, the extension limit position and retraction limit position of the piston rod 51 are marked, so that the extension and retraction stroke of the piston rod 51 can be accurately controlled based on the two sets of proximity switches 11 during the reciprocating extension and retraction motion, so as to meet the fixture or tool installation requirements of different scenarios.

[0034] Specifically, the mounting plate 12 is adjustablely mounted on the distributor end cover 42 using bolts. The mounting plate 12 has an assembly groove, and the mounting plate 12 is fixed to the distributor end cover 42 using connecting bolts. Based on the difference in the installation position of the connecting bolts in the assembly groove, the relative installation position of the mounting plate 12 and the distributor end cover 42 can be adjusted, thereby increasing the installation distance between the two sets of proximity switches 11, i.e., adjusting the effective stroke of the piston rod 51 of the rotary cylinder. By setting an adjustable mounting plate 12 connection method, the flexibility of the proximity switch 11 setting of the rotary cylinder can be improved, and the clamping requirements of the rotary cylinder for different types and specifications of clamps or tools can be met, thus improving the versatility of the rotary cylinder.

[0035] This utility model embodiment provides a rotary cylinder that integrates stroke detection, water injection, and air injection functions. By setting an oil distributor and an oil seal, the water injection and air injection positions of the piston are sealed, and the technical requirement that one end of the piston extends outside the oil distributor for stroke adjustment is met, thus realizing the compatibility of water injection and air injection structure design and stroke adjustment control.

[0036] Furthermore, the rotary cylinder integrating stroke detection, water injection, and air injection functions provided in the embodiments of this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A rotary hydraulic cylinder integrating stroke detection, water injection, and air injection functions, characterized in that, The rotary cylinder includes: a piston with a piston rod, a cylinder body that houses the piston, and an oil distributor sleeved on the piston rod; One end of the rotary cylinder is provided with a stroke adjustment mechanism, which is used to adjust the working stroke of the shaft extension of the rotary cylinder. The oil separator is provided with a first injection port, which is configured as a water injection port or an air injection port. The stroke adjustment mechanism is disposed at one end of the piston rod, and the stroke adjustment mechanism includes at least two mounting plates and a proximity switch disposed on the mounting plates; The two proximity switches form the travel distance of the piston rod's extension and retraction movement.

2. The rotary cylinder integrating stroke detection, water injection, and air injection functions as described in claim 1, characterized in that, The oil separator includes an oil separator body and an oil separator end cap, and the first injection port is disposed on the oil separator end cap; The oil separator body is provided with a second injection port, which is configured as an oil injection port.

3. The rotary cylinder integrating stroke detection, water injection, and air injection functions as described in claim 2, characterized in that, The mounting plate is disposed on the oil separator end cover, and the proximity switch is adjustablely mounted on the mounting plate using screws.

4. The rotary cylinder integrating stroke detection, water injection, and air injection functions as described in claim 2, characterized in that, A first oil seal is provided at one end of the distributor end cap, and a second oil seal is provided at the other end of the distributor end cap.

5. The rotary cylinder integrating stroke detection, water injection, and air injection functions as described in claim 1, characterized in that, The rotary cylinder also includes a cylinder cover, which is matched with the cylinder body; The piston is housed in the cylinder body, and the piston rod extends out of the cylinder body through the through hole in the cylinder head to form the working end of the rotary cylinder.

6. The rotary cylinder integrating stroke detection, water injection, and air injection functions as described in claim 5, characterized in that, The cylinder is divided into a first oil chamber and a second oil chamber based on the piston.

7. The rotary cylinder integrating stroke detection, water injection, and air injection functions as described in claim 6, characterized in that, The oil separator is provided with a second injection port, and the oil separator is provided with a first oil passage connected to the first oil chamber and a second oil passage connected to the second oil chamber. The first oil passage and the second oil passage are connected to the second injection port.

8. The rotary cylinder integrating stroke detection, water injection, and air injection functions as described in claim 1, characterized in that, A sensing element is provided at one end of the piston rod extending outside the distributor end cover, and the sensing element is matched with the proximity switch.

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