Proximity type switch die-casting oil cylinder

Abstract

The utility model relates to the technical field of oil cylinders, and discloses a proximity switch die-casting oil cylinder which comprises a cylinder barrel, a gland is arranged at the end of the cylinder barrel, a piston rod is installed in the gland in a penetrating mode and connected with the cylinder barrel, a proximity switch is arranged on the surface of the cylinder barrel, and a protection assembly is arranged on the surface of the proximity switch. An extension structure is arranged on the surface of the protection assembly, a limiting mechanism is arranged on the surface of the extension structure and connected with the cylinder barrel, a driving component is arranged on the surface of the limiting mechanism and connected with the cylinder barrel, the number of the proximity switches is two, and the proximity switches are in threaded connection with the cylinder barrel. Through mutual cooperation of the cylinder barrel, the gland, the piston rod, the proximity switch and the protection assembly, when the device is used, the proximity switch can be subjected to partition protection, and therefore the problems that an existing device proximity switch is directly exposed outside and is prone to corrosion, and the signal transmission efficiency is reduced are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil cylinders, in particular to a proximity switch die-casting oil cylinder. Background Art

[0002] The die-casting cylinder is one of the most common mechanical equipment in the mold field. During mold production, the specific die-casting environment requires the staff to have an immediate understanding of the movement of the cylinder. Therefore, a proximity switch is installed on the surface of the cylinder.

[0003] In a Chinese patent with the authorization publication number CN217783899U, a proximity switch die-cast oil cylinder is disclosed. The device is formed by installing front and rear proximity switches in a sealed manner in the peripheral wall of the cylinder barrel, and installing front and rear sensing blocks in front and rear positions of the piston. When the piston rod is extended or retracted, the front and rear proximity switches correspond to the front and rear sensing blocks to detect the piston position and feedback signals, thereby achieving the effect of feedback on the cylinder stroke position. The device has a simple structure, stable signals, and reduces costs.

[0004] The above patent has the following defects: However, when the existing device is designed, the proximity switch is directly exposed on the surface of the cylinder. Therefore, the waste oil in the use of the cylinder will gradually drip onto the surface of the proximity switch, which will not only cause chemical corrosion to it, but also wrap the switch, thereby affecting the signal transmission effect. For this reason, a proximity switch die-cast cylinder is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a proximity switch die-cast cylinder to solve the problem that the existing device proposed in the above background technology is designed with the proximity switch directly exposed on the surface of the cylinder. Therefore, waste oil in the use of the cylinder will gradually drip onto the surface of the proximity switch, which will not only cause chemical corrosion to it, but also wrap the switch, thereby affecting the signal transmission effect.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a proximity switch die-cast cylinder, comprising a cylinder barrel, a pressure cover is provided at the end of the cylinder barrel, a piston rod is installed through the interior of the pressure cover, the piston rod and the cylinder barrel are connected to each other, a proximity switch is provided on the surface of the cylinder barrel, a protective component is provided on the surface of the proximity switch, the protective component and the cylinder barrel are connected to each other, an extension structure is provided on the surface of the protective component, a limiting mechanism is provided on the surface of the extension structure, the limiting mechanism and the cylinder barrel are connected to each other, a driving component is provided on the surface of the limiting mechanism, and the driving component and the cylinder barrel are connected to each other.

[0007] Preferably, two of the above-mentioned proximity switches are provided, and the proximity switches are threadedly connected to the cylinder.

[0008] Preferably, the protection component comprises a sealing ring and a hollow tube, the sealing ring is nested and attached to the surface of the proximity switch, the hollow tube is fixed to the surface of the sealing ring, and the hollow tube and the cylinder are fixed to each other.

[0009] Preferably, the extension structure comprises a sleeve and a cover plate, the sleeve is attached to the surface of the hollow tube, and the cover plate is fixed to the surface of the sleeve.

[0010] Preferably, the above-mentioned limiting mechanism includes a transverse plate and a limiting rod, the transverse plate is fixed on the surface of the sleeve, and the limiting rod is installed through the interior of the transverse plate.

[0011] Preferably, two of the above-mentioned limit rods are provided, and the two limit rods are symmetrically distributed about the longitudinal center axis of the cross plate.

[0012] Preferably, the driving component comprises a screw and a rotating plate, the internal thread of the transverse plate is penetrated by the screw, the bottom of the screw is connected to the cylinder bearing, and the rotating plate is fixed to the top of the screw.

[0013] Compared with the prior art, the utility model adopts the above technical solution and has the following technical effects:

[0014] 1. The utility model cooperates with the cylinder, the gland, the piston rod, the proximity switch and the protection assembly to isolate and protect the proximity switch when the device is in use, thereby solving the problem that the proximity switch of the existing device is directly exposed to the outside world, easily corroded and reduces the signal transmission efficiency.

[0015] 2. The utility model cooperates with the extension structure, the limit mechanism and the driving components to enable the device to protect the proximity switch while minimizing the space occupied by the protective parts, thereby not affecting the installation of the die-cast cylinder and not affecting the disassembly of the proximity switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the structure of the utility model from a first perspective;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle;

[0019] Figure 3This is a schematic diagram of the structure of the utility model from a third viewing angle;

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the extension mechanism of the utility model;

[0021] Figure 5 For the utility model Figure 4 Enlarged structural diagram at A in the middle.

[0022] Explanation of the reference numerals in the accompanying drawings: 1. Cylinder; 2. Pressure cover; 3. Piston rod; 4. Proximity switch; 5. Protection component; 501. Sealing ring; 502. Hollow tube; 6. Extension structure; 601. Sleeve; 602. Cover plate; 7. Limiting mechanism; 701. Horizontal plate; 702. Limiting rod; 8. Driving component; 801. Screw rod; 802. Turn plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0025] It should be understood that the terms "length", "width", "up", "down", "front", "back", "first", "second", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0026] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0027] Example

[0028] In the Chinese patent with the authorization publication number CN217783899U, the proximity switch is directly exposed on the surface of the oil cylinder during design. Therefore, the waste oil in the use of the oil cylinder will gradually drip onto the surface of the proximity switch, which will not only cause chemical corrosion to it, but also wrap the switch, thereby affecting the signal transmission effect.

[0029] See also Figure 1-5 The utility model provides a technical solution: a proximity switch die-casting cylinder, comprising a cylinder 1, a gland 2 is provided at the end of the cylinder 1, a piston rod 3 is installed through the interior of the gland 2, the piston rod 3 is connected to the cylinder 1, a proximity switch 4 is provided on the surface of the cylinder 1, a protective component 5 is provided on the surface of the proximity switch 4, the protective component 5 is connected to the cylinder 1, an extension structure 6 is provided on the surface of the protective component 5, a limiting mechanism 7 is provided on the surface of the extension structure 6, the limiting mechanism 7 is connected to the cylinder 1, a driving component 8 is provided on the surface of the limiting mechanism 7, and the driving component 8 is connected to the cylinder 1. In order to monitor the stroke of the piston rod 3 of the die-casting cylinder, two proximity switches 4 are provided, the proximity switch 4 is threadedly connected to the cylinder 1, and in order to protect the proximity switch 4, a protective component 5 is provided, the protective component 5 includes a sealing ring 501 and a hollow tube 502, the sealing ring 501 is nested and attached to the surface of the proximity switch 4, a hollow tube 502 is fixed to the surface of the sealing ring 501, and the hollow tube 502 is fixed to the cylinder 1.

[0030] In order to increase the volume of the protection and reduce the space occupied by the protection parts, an extension structure 6 is provided, the extension structure 6 includes a sleeve 601 and a cover plate 602, the surface of the hollow tube 502 is attached with the sleeve 601, and the surface of the sleeve 601 is fixed with the cover plate 602. In order to avoid the sleeve 601 from being separated from the hollow tube 502 when it moves up, a limiting mechanism 7 is provided, the limiting mechanism 7 includes a horizontal plate 701 and a limiting rod 702, the surface of the sleeve 601 is fixed with the horizontal plate 701, the interior of the horizontal plate 701 is penetrated and installed with the limiting rod 702, and the limiting rod 702 is fixed with the horizontal plate 701. 02 is provided with two, and the two limit rods 702 are symmetrically distributed about the longitudinal center axis of the horizontal plate 701. In order to provide power output for the lifting and lowering of the sleeve 601, a driving component 8 is provided. The driving component 8 includes a screw rod 801 and a rotating plate 802. The internal thread of the horizontal plate 701 passes through the screw rod 801. The bottom of the screw rod 801 is connected to the bearing of the cylinder 1, and the top of the screw rod 801 is fixed with a rotating plate 802. The surfaces of the cylinder 1 and the pressure cover 2 are provided with the same sealing gaskets and oil ports and other parts as those in the comparison case. Because it is not a creative point, it is not described.

[0031] The model of the proximity switch 4 is HS12-S1.5PAU2 / 43.

[0032] Working principle or structural principle, in daily use, the hollow tube 502 sealing ring 501, sleeve 601 and cover plate 602 will isolate and protect the proximity switch 4 to prevent oil and dirt from adhering to it. If the proximity switch 4 needs to be disassembled, the staff can use the rotating plate 802 to drive the screw rod 801 to rotate. When the screw rod 801 rotates, the surface thread will drive the cross plate 701 and the sleeve 601 to descend, thereby exposing the top part of the proximity switch 4. The staff can rotate and disassemble the proximity switch 4 through the top area.

[0033] The device has the advantages of good protection effect and simple structure.

[0034] So far, the embodiments of the utility model have been described in detail in conjunction with the accompanying drawings. It should be noted that the implementation methods not shown or described in the drawings or the body of the specification are all forms known to ordinary technicians in the relevant technical field and are not described in detail. In addition, the above definitions of each component are not limited to the various specific structures, shapes or methods mentioned in the embodiments, and ordinary technicians in the field can simply change or replace them.

[0035] Those skilled in the art will appreciate that the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways without departing from the spirit and teachings of the present invention. All of these combinations and / or combinations fall within the scope of the present invention.

[0036] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A proximity switch die-cast oil cylinder, comprising a cylinder barrel (1), characterized in that: The end of the cylinder barrel (1) is provided with a pressure cover (2), the interior of the pressure cover (2) is penetrated by a piston rod (3), the piston rod (3) and the cylinder barrel (1) are mutually connected, the surface of the cylinder barrel (1) is provided with a proximity switch (4), the surface of the proximity switch (4) is provided with a protective component (5), the protective component (5) and the cylinder barrel (1) are mutually connected, the surface of the protective component (5) is provided with an extension structure (6), the surface of the extension structure (6) is provided with a limiting mechanism (7), the limiting mechanism (7) and the cylinder barrel (1) are mutually connected, the surface of the limiting mechanism (7) is provided with a driving component (8), and the driving component (8) and the cylinder barrel (1) are mutually connected.

2. The proximity switch die-casting cylinder according to claim 1, characterized in that: Two proximity switches (4) are provided, and the proximity switches (4) are threadedly connected to the cylinder barrel (1).

3. The proximity switch die-casting cylinder according to claim 1, characterized in that: The protection component (5) comprises a sealing ring (501) and a hollow tube (502); the sealing ring (501) is nested and attached to the surface of the proximity switch (4); the hollow tube (502) is fixed to the surface of the sealing ring (501); and the hollow tube (502) and the cylinder barrel (1) are fixed to each other.

4. The proximity switch die-casting cylinder according to claim 3, characterized in that: The extension structure (6) comprises a sleeve (601) and a cover plate (602); the sleeve (601) is attached to the surface of the hollow tube (502); and the cover plate (602) is fixed to the surface of the sleeve (601).

5. The proximity switch die-casting cylinder according to claim 4, characterized in that: The limiting mechanism (7) comprises a transverse plate (701) and a limiting rod (702); the transverse plate (701) is fixed on the surface of the sleeve (601); and the limiting rod (702) is installed through the interior of the transverse plate (701).

6. The proximity switch die-casting cylinder according to claim 5, characterized in that: Two limiting rods (702) are provided, and the two limiting rods (702) are symmetrically distributed about the longitudinal center axis of the transverse plate (701).

7. The proximity switch die-casting cylinder according to claim 5, characterized in that: The driving component (8) comprises a screw rod (801) and a rotating plate (802); the screw rod (801) penetrates the internal thread of the transverse plate (701); the bottom of the screw rod (801) is connected to the bearing of the cylinder barrel (1); and the rotating plate (802) is fixed to the top of the screw rod (801).

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