Oil cylinder with proximity switch
By setting up proximity switch mounting sleeve, protective sleeve, mounting cover and clamping components on the cylinder block, the welded oil cylinder is solved in the insufficient size and complex processing problems when installing the proximity switch, and the rapid installation and effective protection of the proximity switch are achieved. .
Patent Information
- Application Number
- CN202420259044.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-02
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-02-02
AI Technical Summary
The existing welded oil cylinders have problems such as insufficient size, complex processing and easy processing errors when installing proximity switches. At the same time, the proximity switches are fragile and easy to damage and lack protection devices.
A oil cylinder with proximity switch is designed, and the rapid installation and protection of the proximity switch is achieved by setting the proximity switch mounting sleeve, protective sleeve, mounting cover and clamping assembly on the cylinder block.
The rapid installation of proximity switch is achieved, which reduces processing requirements, avoids the risk of damage to the proximity switch during installation, and provides effective protective measures.
Smart Images
Figure CN222502271U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of hydraulic oil cylinders, and in particular relates to an oil cylinder with a proximity switch. Background Art
[0002] With the development of modern industry, the requirements for the degree of automation of mechanical equipment will become higher and higher, which requires that the combination of electrical, hydraulic and mechanical technologies will become closer and closer. As the actuator in the hydraulic system, the hydraulic cylinder can automatically detect the position of the hydraulic cylinder piston rod by installing technologies such as inductive proximity switches or magnetostrictive displacement sensors, and realize the automation of the equipment by combining the control system. The conventional oil cylinders with proximity switches on the market are mainly tie rod oil cylinders. The way to install the proximity switch is generally to directly process threaded holes matching the proximity switch on the front and rear end covers of the existing oil cylinder, and screw the proximity switch into the installation hole. The installation hole of the proximity switch on the end cover of the oil cylinder is generally composed of a section of thread and a section of hole. In order to ensure that the O-ring on the proximity switch will not be damaged when the proximity switch is installed, the roughness of this section of the hole needs to be higher and a suitable guide chamfer is required, and the tolerance must meet the requirements. However, some work that cannot be completed by the tie rod cylinder requires the use of a welded cylinder. Due to the limitations of the welded cylinder's own structure, the proximity switch installation hole directly processed on the cylinder body and the cylinder bottom has the limitation of insufficient size, and the proximity switch installation hole is complicated to process and has high processing requirements, which is prone to processing errors. Moreover, the proximity switch itself is very fragile, and there is no protective device at the proximity switch. It is very likely to be damaged by external force, which not only affects the work but also causes unnecessary losses. Utility Model Content
[0003] In view of the problems existing in the prior art, the utility model provides an oil cylinder with a proximity switch, which is convenient for installing the proximity switch on the oil cylinder and can provide protection measures for the proximity switch to prevent the proximity switch from being damaged by external forces.
[0004] The solution adopted by the utility model to solve its technical problems is: a cylinder with a proximity switch, including a cylinder body, a piston rod is matched with a guide sleeve in the cylinder body, and the inner end of the piston rod is matched with a piston and a locking nut matched with the cylinder body, and a cylinder bottom is provided at the rear end of the cylinder body, and also includes a proximity switch installation component, the proximity switch installation component includes a proximity switch installation sleeve arranged at the front and rear ends of the side of the cylinder body, the proximity switch can be installed in the proximity switch installation sleeve, a protective sleeve is welded at a position corresponding to the proximity switch installation sleeve on the side of the cylinder body through a proximity switch protective sleeve base, the proximity switch installation sleeve is located at the center position in the protective sleeve, the outer side of the protective sleeve is threadedly fitted with a mounting cover, the inner bottom of the mounting cover is provided with a butt groove matching the end of the proximity switch, and a clamping component is provided in the mounting cover, and the proximity switch can be clamped and fixed in the mounting cover by the clamping component.
[0005] Furthermore, the clamping assembly includes an arc-shaped clamping block symmetrically arranged in the mounting cover, and the arc-shaped clamping block is connected in the mounting cover through a transverse spring.
[0006] Furthermore, the proximity switch mounting sleeve is matched with the cylinder bottom and the cylinder body and then welded.
[0007] Furthermore, a sealing gasket is provided at the outer end of the proximity switch mounting sleeve.
[0008] Compared with the prior art, the beneficial effects of the utility model are:
[0009] By providing a proximity switch mounting sleeve, a protective sleeve, a proximity switch protective sleeve base and a mounting cover, when adding the proximity switch, the proximity switch mounting sleeve and the protective sleeve can be directly welded to the cylinder body, and then the proximity switch is fixed in the mounting cover by a clamping assembly, and the mounting cover is threadedly mounted on the protective sleeve, so that the proximity switch is driven into the proximity switch mounting sleeve, and the installation of the proximity switch is quickly completed. When installing the proximity switch, there is no need to accurately process the threaded hole on the cylinder, which reduces the processing requirements, simplifies the processing, and meets the needs of installing the proximity switch on the cylinder. After installation, the proximity switch is in the protective sleeve and the mounting cover, which can prevent the proximity switch from being squeezed and bumped by foreign objects and damaged, thereby providing a protective effect for the proximity switch. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;
[0011] Figure 2 for Figure 1 Schematic diagram of the structure enlarged at point A in the middle.
[0012] In the figure: 1. Cylinder body; 2. Piston rod; 3. Locking nut; 4. Cylinder bottom; 5. Piston; 6. Guide sleeve; 7. Proximity switch; 8. Proximity switch mounting assembly; 81. Proximity switch mounting sleeve; 82. Proximity switch protective sleeve base; 83. Protective sleeve; 84. Sealing gasket; 85. Mounting cover; 86. Spring; 87. Arc clamp block; 88. Abutment groove. DETAILED DESCRIPTION
[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0014] See also Figure 1-2 The utility model provides a technical solution for an oil cylinder with a proximity switch: Example
[0015] according to Figure 1 and Figure 2As shown, a guide sleeve 6 is sleeved inside the front end of the cylinder body 1, a piston rod 2 is sleeved in the cylinder body 1 through the guide sleeve 6, and a piston 5 is fixedly sleeved on the piston rod 2, and a locking nut 3 is threadedly sleeved on the inner end of the piston rod 2, a cylinder bottom 4 is provided at the rear end of the cylinder body 1, a proximity switch mounting assembly 8 is provided on the cylinder body 1, mounting holes are opened on the outer side of the front end of the cylinder body 1 and the side of the cylinder bottom 4, a proximity switch mounting sleeve 81 is welded in the mounting hole, and when the proximity switch mounting sleeve is produced, the corresponding size can be matched according to the size of the proximity switch, a proximity switch protection sleeve base 82 is welded on the outer edge of the side mounting hole of the cylinder body 1, and the proximity switch protection sleeve base 82 A protective sleeve 83 is welded on the top, and the mounting hole and the proximity switch mounting sleeve 81 are arranged at the center of the protective sleeve 83. The outer peripheral side of the protective sleeve 83 is provided with an external thread, and a mounting cover 85 is matched on the protective sleeve 83, and the inner peripheral side of the mounting cover 85 is provided with an internal thread. The mounting cover 85 can be threadedly mounted on the protective sleeve 83, and a supporting groove 88 is opened on the inner bottom of the mounting cover 85, and an arc-shaped clamping block 87 is symmetrically arranged at the inner bottom of the mounting cover 85, and the arc-shaped clamping block 87 is connected to the mounting cover 85 through a transverse spring 86. When the proximity switch 7 is placed in the mounting cover 85, the proximity switch 7 can be clamped and fixed in the mounting cover 85 by the clamping assembly composed of the arc-shaped clamping block 87 and the spring 86, and the proximity switch 7 can be clamped and fixed in the mounting cover 85, and the proximity switch 7 can be fixed in the mounting cover 85. The root abuts against the abutment groove 88 of the mounting cover 85. When installing the proximity switch 7, it is only necessary to align the mounting cover 85 with the protective sleeve 83, insert the proximity switch 7 fixed on the mounting cover 85 into the protective sleeve 83, and then screw the mounting cover 85 on the protective sleeve 83. The end of the proximity switch 7 can enter the proximity switch mounting sleeve 81. A sealing gasket 84 is provided at the outer end of the proximity switch mounting sleeve 81. When the flange on the proximity switch 7 contacts the sealing gasket 84, the sealing gasket 84 can improve the sealing effect of the proximity switch 7 on the cylinder body 1. The proximity switch 7 reaches the installation position and the installation of the proximity switch 7 is completed. At this time, the proximity switch 7 is located in the protective sleeve 83 and the mounting cover 85. The protective cover 83 and the mounting cover 85 can provide shielding protection for the proximity switch 7 to prevent the proximity switch 7 from being damaged, and by adopting the above-mentioned mounting method, there is no need to machine a precise mounting hole on the cylinder body, and the installation work of the proximity switch can be completed, which is convenient for processing; after the proximity switch 7 is installed on the hydraulic cylinder body, when the piston rod 2 is at the cylinder bottom 4 position, the distance between the left proximity switch 7 and the locking nut 3 is small, so the left proximity switch 7 can sense the position of the locking nut 3, and when the piston 5 runs to the guide sleeve 6 position, it is close to the position of the proximity switch 7 on the right side of the piston 5, and the right proximity switch 7 can sense the position of the piston 5, and the stroke position of the cylinder is fed back through the proximity switch 7.
[0016] During specific use, the utility model is a cylinder with a proximity switch. First, the proximity switch 7 to be installed is clamped and fixed in the mounting cover 85 through the cooperation of the arc clamp block 87 and the spring 86, and the root of the proximity switch 7 is abutted against the abutment groove 88 of the mounting cover 85. Then, the mounting cover 85 is aligned with the protective cover 83, the proximity switch 7 is inserted into the protective cover 83, and the mounting cover 85 is screwed. As the mounting cover 85 is gradually screwed onto the protective cover 83, the end of the proximity switch 7 enters the proximity switch mounting cover 81. When the flange on the proximity switch 7 contacts the sealing gasket 84, the proximity switch 7 reaches the installation position, and the installation of the proximity switch 7 is completed. At this time, the proximity switch 7 is located in the protective cover 83 and the mounting cover 85. When the proximity switch 7 is working, it can be protected by the protective cover 83 and the mounting cover 85.
[0017] The above description is only a preferred embodiment of the present invention and does not limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims
1. A cylinder with a proximity switch, comprising a cylinder body, wherein a piston rod is fitted in the cylinder body through a guide sleeve, and the inner end of the piston rod is fitted with a piston and a locking nut matched in the cylinder body, and a cylinder bottom is provided at the rear end of the cylinder body, characterized in that: It also includes a proximity switch installation component, which includes a proximity switch installation sleeve arranged at the front and rear ends of the side of the cylinder body, and the proximity switch can be installed in the proximity switch installation sleeve. A protective sleeve is welded on the side of the cylinder body at a position corresponding to the proximity switch installation sleeve through the proximity switch protective sleeve base. The proximity switch installation sleeve is located at the center position in the protective sleeve. A mounting cover is threadedly sleeved on the outer side of the protective sleeve. The inner bottom of the mounting cover is provided with a supporting groove matching the end of the proximity switch, and a clamping assembly is provided in the mounting cover. The proximity switch can be clamped and fixed in the mounting cover by the clamping assembly.
2. The oil cylinder with a proximity switch according to claim 1, characterized in that: The clamping assembly comprises an arc-shaped clamping block symmetrically arranged in the installation cover, and the arc-shaped clamping block is connected in the installation cover through a transverse spring.
3. The oil cylinder with a proximity switch according to claim 1, characterized in that: The proximity switch mounting sleeve is matched with the cylinder bottom and the cylinder body and then welded.
4. The oil cylinder with a proximity switch according to claim 1, characterized in that: A sealing gasket is provided at the outer end of the proximity switch mounting sleeve.