Hydraulic oil cylinder signal switch mechanism with protection box

Abstract

The utility model discloses a hydraulic oil cylinder signal switch mechanism with a protection box, which comprises a stroke rod with a linear reciprocating translation degree of freedom along the axial direction of the stroke rod, and a locking block which protrudes outwards in the radial direction is arranged on the stroke rod; the two travel switches are arranged on the same side of the travel rod, each travel switch is provided with a roller capable of being in contact with the locking block, and the axis of each roller is perpendicular to the length direction of the travel rod; the housing covers the travel switch, and the roller is exposed out of the housing; the travel switch comprises a stepped hole, the housing and the travel switch are assembled through a screw penetrating through the stepped hole, the top of the housing is provided with an integrated convex rib, and the length track of the convex rib is a broken line. The housing provided by the utility model can prevent the travel switch from being scalded and damaged by collision, effectively protects the signal switch, and prolongs the service life of the travel switch.

Description

Technical Field

[0001] The utility model relates to the field of hydraulic oil cylinders, in particular to a hydraulic oil cylinder signal switch mechanism with a protection box. Background Art

[0002] The mold hydraulic cylinder needs to perform long-term reciprocating motion. The switch of the mold hydraulic cylinder can sense the position of the mold hydraulic cylinder. The switch often works in a high temperature environment and there may be a certain chance of damage. Utility Model Content

[0003] The problem to be solved by the utility model is to provide a hydraulic oil cylinder signal switch mechanism with a protection box, wherein the cover shell can prevent the travel switch from being scalded or hit, effectively protects the signal switch, and increases the service life of the travel switch.

[0004] In order to solve the above problems, the utility model provides a hydraulic cylinder signal switch mechanism with a protection box. In order to achieve the above purpose, the technical solution adopted by the utility model to solve its technical problems is:

[0005] A hydraulic cylinder signal switch mechanism with a protective box comprises: a travel rod, which has a linear reciprocating translation freedom along its own axis, and a radially outwardly protruding locking block on the travel rod; a travel switch, two travel switches are arranged on the same side of the travel rod, and the travel switch has a roller that can contact the locking block, and the axis of the roller is perpendicular to the length direction of the travel rod; a cover shell, which covers the travel switch, and the roller is exposed from the cover shell; the travel switch includes a step hole, and the cover shell and the travel switch are assembled with the help of screws passing through the step hole, and the top of the cover shell has an integrated rib, and the length trajectory of the rib is a broken line.

[0006] The beneficial effects of adopting the above technical solution are: first, the cover uses a box-shaped object to wrap the travel switch, so as to prevent the high-temperature melt during injection molding from splashing directly onto the travel switch and scalding the travel switch. Secondly, the convex ribs increase the thickness and strength of the cover, so as to prevent sharp objects or blunt objects from hitting the travel switch during the production process, thereby preventing the travel switch from being damaged. Thirdly, the convex ribs of the broken line ensure that the coverage area of ​​the convex ribs is large, and also ensure the structural strength of the cover in all directions. Finally, the step hole is provided by the travel switch, and the cover is also assembled with the help of the existing step hole, so the disassembly and assembly of the entire cover is relatively easy. The present application effectively protects the signal switch and increases the service life of the switch.

[0007] In addition, the travel rod moves with the mold hydraulic cylinder, and by touching the roller of the travel switch from time to time, it can sense whether the mold hydraulic cylinder has moved to the specified position. The travel switch is connected to the controller to assist in controlling the movement of the mold hydraulic cylinder.

[0008] As a further improvement of the present utility model, the locus broken line of the convex rib is three perpendicularly connected line segments.

[0009] The beneficial effect of adopting the above technical solution is that: since the convex rib is not simply a single line segment, the convex rib can cover a certain area.

[0010] As a further improvement of the present utility model, the housing material includes one or a combination of wholly aromatic nylon and semi-aromatic nylon.

[0011] The beneficial effect of adopting the above technical solution is that: wholly aromatic nylon and semi-aromatic nylon have a certain heat resistance.

[0012] As a further improvement of the present utility model, the travel switch includes an extension arm connected to the roller, and the length direction of the extension arm is perpendicular to the length direction of the travel rod.

[0013] The beneficial effect of adopting the above technical solution is that: the extension arm facilitates the roller to be as close as possible to the travel rod.

[0014] As a further improvement of the present utility model, several bearing seats are sleeved on the travel rod, the travel rod has a linear translation freedom degree relative to the bearing seats, and the bearing seats are jointly fixed to a base plate.

[0015] The beneficial effect of adopting the above technical solution is that: the bearing seats facilitate the travel rod to be arranged in a suspended manner, and at the same time enable the travel rod to operate with low resistance.

[0016] As a further improvement of the present utility model, the locking block and the travel rod are assembled by threads.

[0017] The beneficial effect of adopting the above technical solution is that: the specific position of the locking block on the travel rod can be adjusted by threads.

[0018] As a further improvement of the present utility model, a chamfer is provided at the junction of the circumferential surface of the locking block and the axial end surface.

[0019] The beneficial effect of adopting the above technical solution is that: the chamfer facilitates the impact contact of the roller and is conducive to weakening the impact damage.

[0020] As a further improvement of the present utility model, there are two locking blocks in total, and the chamfers of the two locking blocks are located at the opposite ends of the two locking blocks respectively.

[0021] The beneficial effect of adopting the above technical solution is that: the chamfer on one side exactly corresponds to the roller on one side.

[0022] As a further improvement of the present utility model, the locking block is provided with a radial assembly hole.

[0023] The beneficial effect of adopting the above technical solution is that: the assembly hole can install other external components, facilitating their synchronous movement with the travel rod. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0025] Figure 1 is a top view of an embodiment of the present invention;

[0026] Figure 2 is a side view of an embodiment of the present invention.

[0027] 1 - Base; 2 - Stroke rod; 3 - Bearing seat; 4 - Locking block; 5 - Travel switch; 6 - Extension arm; 7 - Roller; 8 - Step hole; 9 - Housing; 10 - Rib; 11 - Assembly hole; 12 - Chamfer. Detailed Embodiment

[0028] The following will further elaborate on the content of the present invention in combination with specific embodiments:

[0029] To achieve the purpose of the present invention, as Figure 1 and Figure 2 shown, a hydraulic cylinder signal switch mechanism with a protective box includes: a stroke rod 2 having a linear reciprocating translation degree of freedom along its own axis, and a radially protruding locking block 4 on the stroke rod 2; two travel switches 5 are arranged on the same side of the stroke rod 2, the travel switch 5 has a roller 7 capable of contacting the locking block 4, and the axis of the roller 7 is perpendicular to the length direction of the stroke rod 2; a housing 9 covers the travel switch 5, and the roller 7 protrudes from the housing 9; the travel switch 5 includes a step hole 8, and the housing 9 and the travel switch 5 are assembled by screws passing through the step hole 8, and the top of the housing 9 has an integral rib 10, and the length trajectory of the rib 10 is a broken line.

[0030] The beneficial effects of adopting the above technical solution are: first, the cover uses a box-shaped object to wrap the travel switch, so as to prevent the high-temperature melt during injection molding from directly splashing onto the travel switch and scalding the travel switch. Secondly, the convex ribs increase the thickness and strength of the cover, so as to prevent sharp objects and blunt objects from hitting the travel switch during the production process, thereby preventing the travel switch from being damaged. Thirdly, the convex ribs of the broken line ensure that the coverage area of ​​the convex ribs is large, and also ensure the structural strength of the cover in all directions. Finally, the step hole is provided by the travel switch, and the cover is also assembled with the help of the existing step hole, so that the disassembly and assembly of the entire cover is relatively easy. This application effectively protects the signal switch and increases the service life of the switch. In addition, the travel rod moves with the movement of the mold hydraulic cylinder, and by touching the roller of the travel switch from time to time, it senses whether the mold hydraulic cylinder has moved to the specified position. The travel switch is connected to the controller, etc., to assist in controlling the movement of the mold hydraulic cylinder.

[0031] The travel switch 5 is electrically connected to the mold hydraulic cylinder.

[0032] In other embodiments of the present invention, the trajectory fold line of the convex rib 10 is three vertically connected line segments.

[0033] The beneficial effect of adopting the above technical solution is that the convex rib is not a simple line segment, so the convex rib can cover a certain area.

[0034] In some other embodiments of the present invention, the material of the cover shell 9 includes one or a combination of fully aromatic nylon and semi-aromatic nylon.

[0035] The beneficial effect of adopting the above technical solution is that the fully aromatic nylon and the semi-aromatic nylon have a certain heat resistance.

[0036] In some other embodiments of the present invention, the travel switch 5 includes an extension arm 6 connected to the roller 7 , and the length direction of the extension arm 6 is perpendicular to the length direction of the travel rod 2 .

[0037] The beneficial effect of adopting the above technical solution is that the extension arm makes it easier for the roller to get as close to the travel rod as possible.

[0038] In some other embodiments of the present invention, the travel rod 2 is sleeved with a plurality of bearing seats 3, the travel rod 2 has linear translational freedom relative to the bearing seats 3, and the bearing seats 3 are jointly fixed with the base plate 1.

[0039] The beneficial effect of adopting the above technical solution is that the bearing seat makes it easy for the travel rod to be suspended in the air, and at the same time allows the travel rod to run with low resistance.

[0040] In some other embodiments of the present invention, the locking block 4 and the travel rod 2 are assembled by threads.

[0041] The beneficial effects of adopting the above technical solution are as follows: The specific position of the locking block on the stroke rod can be adjusted by threads.

[0042] In some other embodiments of the present utility model, a chamfer 12 is provided at the junction of the circumferential surface of the locking block 4 and the shaft end face.

[0043] The beneficial effects of adopting the above technical solution are as follows: The chamfer facilitates the impact contact of the roller and is conducive to weakening the impact damage.

[0044] In some other embodiments of the present utility model, there are two locking blocks 4 in total, and the chamfers 12 of the two locking blocks 4 are located at the opposite ends of the two locking blocks 4.

[0045] The beneficial effects of adopting the above technical solution are as follows: The chamfer on one side exactly corresponds to the roller on one side.

[0046] In some other embodiments of the present utility model, the locking block 4 is provided with a radial assembly hole 11. The assembly hole 11 also has internal threads.

[0047] The beneficial effects of adopting the above technical solution are as follows: The assembly hole can install other external components, facilitating their synchronous movement with the stroke rod.

[0048] The model of the travel switch 5 can be TZ3112.

[0049] The above embodiments are only used to illustrate the technical concept and features of the present utility model, and their purpose is to enable those who are familiar with this technology to understand the content of the present utility model and implement it. However, the protection scope of the present utility model cannot be limited thereby. All equivalent changes or modifications made according to the spirit and essence of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A hydraulic cylinder signal switch mechanism with a protective box, characterized in that, Comprising: A stroke rod having a linear reciprocating translation degree of freedom along its own axial direction, and a radially protruding locking block is provided on the stroke rod; A travel switch, two travel switches are arranged on the same side of the stroke rod, the travel switch is provided with a roller capable of contacting the locking block, and the axis of the roller is perpendicular to the length direction of the stroke rod; A housing covering the travel switch, and the roller protrudes from the housing; The travel switch includes a stepped hole, and the housing and the travel switch are assembled by means of screws passing through the stepped hole. The top of the housing has an integral rib, and the length trajectory of the rib is a broken line.

2. The hydraulic cylinder signal switch mechanism with a protective box according to claim 1, characterized in that: The broken line of the trajectory of the rib is three perpendicularly connected line segments.

3. The hydraulic cylinder signal switch mechanism with a protective box according to claim 1, characterized in that: The material of the housing includes one or a combination of wholly aromatic nylon and semi-aromatic nylon.

4. The hydraulic cylinder signal switch mechanism with a protective box according to claim 1, characterized in that: The travel switch includes an extension arm connected to the roller, and the length direction of the extension arm is perpendicular to the length direction of the stroke rod.

5. The hydraulic cylinder signal switch mechanism with a protective box according to claim 1, characterized in that: A plurality of bearing seats are sleeved on the stroke rod. The stroke rod has a linear translation degree of freedom relative to the bearing seats, and the bearing seats are jointly fixed to a substrate.

6. The hydraulic cylinder signal switch mechanism with a protection box according to claim 1, characterized in that: The locking block and the stroke rod are assembled by threads.

7. The hydraulic cylinder signal switch mechanism with a protective box according to claim 1, characterized in that: A chamfer is provided at the junction of the circumferential surface and the axial end surface of the locking block.

8. The hydraulic cylinder signal switch mechanism with a protective box according to claim 7, wherein: There are two locking blocks in total, and the chamfers of the two locking blocks are located at the opposite ends of the two locking blocks.

9. The hydraulic cylinder signal switch mechanism with a protective box according to claim 1, characterized in that: The locking block is provided with a radial assembly hole.

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