Oil pressure brake inductive switch structure

Abstract

The utility model relates to the field of numerical control center tool equipment, in particular to an oil pressure brake inductive switch structure which comprises a piston seat, a piston is arranged in the piston seat in a sliding mode, a piston cover is connected to one side of the piston seat in a threaded mode, a spring is sleeved on one side, close to the piston cover, of the outer wall of the piston, and two O-shaped rings are sleeved on one side, close to the piston seat, of the outer wall of the piston at equal intervals. The side, close to the spring, of the piston cover is connected with a microswitch through a support. According to the utility model, the piston is restarted through the spring, and the microswitch is separated from the piston, the piston seat and the piston cover, so that the influence of oil pressure fluctuation on the microswitch is avoided, the microswitch can be ejected and triggered through the piston in the piston seat and the piston cover, and the whole structure is simple.

Description

TECHNICAL FIELD

[0001] The utility model relates to numerical control center frock equipment technical field especially relates to a kind of oil pressure brake inductive switch structure. BACKGROUND

[0002] Four-axis rotary table has become indispensable functional components on numerical control machining center. At present, the brake inductive switch of most four-axis rotary tables on the market adopts conventional oil pressure inductive switch on the market, and its principle is to convert pressure signal into electric signal through piezoresistive effect. However, such switch can be damaged due to the influence of oil pressure overshoot, and long-term use of components can cause aging, and the pollution problem of use scene can also cause the failure of sensor. INVENTION CONTENTS

[0003] The utility model aims at solving the shortcomings in prior art, and provides an oil pressure brake inductive switch structure.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] An oil pressure brake inductive switch structure, a piston seat and a piston cover, characterized in that the piston seat and the piston cover are threadedly assembled into a piston assembly, a piston is slidably arranged in the piston seat, a spring is sleeved on one side of the outer wall of the piston away from the piston cover, and two O-rings are equidistantly sleeved on the other side of the outer wall of the piston.

[0006] In addition, preferably, a flow-through hole is formed in the middle of the piston cover and the piston seat, a groove is formed in the piston cover on the side of the piston seat, and an auxiliary groove is formed in the piston cover on the side of the groove and at the position of the spring.

[0007] In addition, preferably, a limiting groove is formed in the outer wall of the piston on the side of the piston seat at the position of the O-ring, and the outer wall of the O-ring is flush with the outer wall of the piston when the O-ring is located in the limiting groove.

[0008] In addition, preferably, an external thread part is arranged on the outer wall of the piston seat on the side of the piston cover, an internal thread part is arranged in the groove of the piston cover at the position of the external thread part, and the internal thread part is threadedly connected with the external thread part.

[0009] In addition, preferably, a limiting sliding groove is formed in the piston seat at the position of the piston.

[0010] In addition, preferably, the bracket is L-shaped, and the bracket and the outer wall of the piston cover are connected and fixed by a plurality of bolts.

[0011] The utility model has the advantages of:

[0012] In this invention, the piston is re-moved by a spring. At the same time, the micro switch, piston, piston seat, and piston cover are designed separately. This avoids the influence of oil pressure fluctuations on the micro switch. The micro switch can be triggered by the piston being pushed out from inside the piston seat and piston cover. The overall structure is simple. Attached Figure Description

[0013] Figure 1 This is a cross-sectional structural diagram of a hydraulic brake inductive switch structure proposed in this utility model;

[0014] Figure 2 This is a front view structural diagram of a hydraulic brake induction switch structure proposed in this utility model;

[0015] Figure 3 This is a side view of the structure of a hydraulic brake inductive switch proposed in this utility model;

[0016] Figure 4 This is a top view of the hydraulic brake induction switch structure proposed in this utility model.

[0017] In the diagram: 1. Piston seat; 2. Piston; 3. Piston cap; 4. Spring; 5. O-ring; 6. Bracket; 7. Micro switch. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Reference Figures 1-4 A hydraulic brake sensing switch structure includes a piston seat 1, a piston 2 slidably disposed inside the piston seat 1, and a piston cover 3 screwed to one side of the piston seat 1. A spring 4 is sleeved on the outer wall of the piston 2 near the piston cover 3. Two O-rings 5 ​​are sleeved at equal intervals on the outer wall of the piston 2 near the piston seat 1. A micro switch 7 is connected to the side of the piston cover 3 near the spring 4 through a bracket 6.

[0020] It is worth noting that the micro switch 7 includes an actuating spring, and the actuating spring and the piston are on the same horizontal line. The specific structure and working principle of the micro switch 7 are existing technologies that are currently publicly available on the market, and are not the main technical problems to be solved in this utility model. Therefore, this utility model will not elaborate on them.

[0021] Meanwhile, a flow hole is provided through the middle of the piston cover 3 and the piston seat 1, a groove is provided on one side of the piston cover 3 at the piston seat 1, and an auxiliary groove is provided on one side of the groove and at the spring 4 inside the piston cover 3.

[0022] Meanwhile, a limiting groove is opened on the outer wall of piston 2 on the side near piston seat 1 at O-ring 5, and when O-ring 5 is in the limiting groove, the outer wall of O-ring is flush with the outer wall of piston 2. The setting of O-ring 5 ensures the sealing between piston and piston seat 1.

[0023] Furthermore, the piston seat 1 has an external thread on the outer wall near the piston cover 3, and the piston cover 3 has an internal thread in the groove located at the external thread. The internal thread is threaded to the external thread. The movable seat 1 is threaded to the piston cover 3. When the spring 4 or piston 2 is damaged, it can be disassembled and replaced.

[0024] Furthermore, a limiting groove is provided inside the piston seat 1 at the piston 2.

[0025] Furthermore, the bracket 6 is L-shaped, and the bracket 6 and the outer wall of the piston cover 3 are connected and fixed by multiple bolts.

[0026] In this embodiment, the device is placed inside a four-axis turntable. When oil enters the piston seat 1, the oil pushes the piston 2 toward the micro switch 7 and triggers the micro switch 7. The spring 4 ensures the timely triggering of the micro switch 7 by the piston 2 and provides a certain buffering effect on the piston, absorbing some of the kinetic energy of the piston 2 during the movement process and reducing the impact force and wear of the piston 2 on the micro switch 7.

[0027] Meanwhile, the micro switch 7 is designed separately from the piston 2, piston seat 1 and piston cover 3. This avoids the impact of oil pressure fluctuations on the micro switch 7, while the micro switch 7 can be triggered by the piston 2 inside the piston seat 1 and piston cover 3. The overall structure is simple.

[0028] In this invention, the piston 2 is re-moved by the spring 4. At the same time, the micro switch 7 is designed separately from the piston 2, piston seat 1 and piston cover 3. This avoids the impact of oil pressure fluctuations on the micro switch 7. The micro switch 7 can be triggered by the piston 2 being pushed out from inside the piston seat 1 and piston cover 3. The overall structure is simple.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hydraulic brake sensing switch structure, comprising a piston seat (1) and a piston cover (3), characterized in that, The piston seat (1) and piston cover (3) are threaded together to form a piston assembly. A piston (2) is slidably disposed inside the piston seat (1). A spring (4) is sleeved on the outer wall of the piston (2) on the side of the piston cover (3). Two O-rings (5) are sleeved at equal intervals on the other side of the outer wall of the piston (2). A micro switch (7) is connected to the side of the piston cover (3) near the spring (4) through a bracket (6).

2. The hydraulic brake sensing switch structure according to claim 1, characterized in that, A flow hole is provided through the middle of the piston cover (3) and piston seat (1). A groove is provided on one side of the piston cover (3) at the piston seat (1), and an auxiliary groove is provided on one side of the groove and at the spring (4) inside the piston cover (3).

3. The hydraulic brake sensing switch structure according to claim 1, characterized in that, The piston (2) has a limiting groove on the outer wall of the piston seat (1) on the side of the piston (2) at the O-ring (5), and when the O-ring (5) is in the limiting groove, the outer wall of the O-ring is flush with the outer wall of the piston (2).

4. The hydraulic brake sensing switch structure according to claim 1, characterized in that, The piston seat (1) has an external thread on the outer wall of the piston cover (3) side. The piston cover (3) has an internal thread in the groove located at the external thread. The internal thread is threaded to the external thread.

5. The hydraulic brake sensing switch structure according to claim 1, characterized in that, A limiting groove is provided in the piston seat (1) at the piston (2).

6. The hydraulic brake sensing switch structure according to claim 1, characterized in that, The bracket (6) is L-shaped, and the bracket (6) and the outer wall of the piston cover (3) are connected and fixed by multiple bolts.

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