Mounting structure of limit switch sensor

Abstract

The utility model discloses an installation structure of a limit switch sensor, which comprises a base, a load plate and a plurality of elastic pieces, and one end of the base is provided with an installation part for installing the limit switch sensor; a contact probe is arranged at one end of the load plate close to the mounting part; the elastic member is mounted between opposite surfaces of the base and the load plate to form a mounting gap between the limit switch sensor and the contact probe. According to the utility model, the limit switch sensor and the measured object are designed to be in elastic limit contact, so that the installation structure can retract under the elastic acting force when being in contact with the measured object, thereby compressing the installation gap between the limit switch sensor and the contact probe to be within the effective limit stroke range of the limit switch sensor; therefore, the position or the formed action of the moving part can be locked, and the locking requirement of a non-metal product can be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electromechanical product assembly and debugging, in particular to a mounting structure of limit switch sensor. BACKGROUND

[0002] Limit switch sensor is a commonly used small current master electric appliance, which can be installed on relatively static objects (such as fixed frame, door frame, etc., referred to as static objects) or moving objects (such as vehicles, doors, etc., referred to as animals). The collision of mechanical moving parts is used to make the contact move to realize the return or segmented control circuit, so as to achieve the control purpose. Usually, such switches are used to limit the position of mechanical moving parts or form action, so that the mechanical moving parts stop at the specified position or form action. At present, the installation mode of limit switch sensor plays a decisive role in the motion state control of limit switch sensor, so the limit switch sensor has high requirements for the installation mode, mainly in the aspects of base structure characteristics, structure form control, etc. If the installation structure does not meet the requirements or the installation mode is incorrect, the limit switch sensor will be invalid, resulting in contact error of limit switch sensor output, and further leading to that the limit switch sensor cannot finally meet the action control requirements.

[0003] However, the traditional limit switch sensor needs to realize the action stop command by contacting the limit switch through the metal probe, and when the measured object is a non-metal product, it is difficult for the limit switch to realize the stop requirement. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the purpose of the utility model is to provide a mounting structure of limit switch sensor to solve the technical problems mentioned in the prior art.

[0005] A mounting structure of limit switch sensor, the mounting structure comprises:

[0006] a base having an installation part for installing the limit switch sensor at one end;

[0007] a load plate provided with a contact probe at one end close to the installation part, the contact probe contacts the limit switch sensor to make the limit switch sensor realize the stop action;

[0008] a plurality of elastic members installed between the opposite surfaces of the base and the load plate to form an installation gap between the limit switch sensor and the contact probe;

[0009] the load plate or the base contacts the measured object to compress the elastic members to eliminate the installation gap.

[0010] Optionally, the elastic members are provided in two groups, and the two groups of elastic members are symmetrically arranged on the opposite sides of the limit switch sensor.

[0011] Optionally, the elastic member comprises:

[0012] A box module is arranged on the base and is provided with a first through hole in the extension direction of the elastic member;

[0013] A positioner is arranged on the load plate and is provided with a second through hole in the extension direction of the center line of the first through hole;

[0014] An optical axis is arranged between the box module and the positioner, and both ends of the optical axis are provided with a limiting part penetrating through the first through hole and the second through hole respectively;

[0015] A spring is arranged on the optical axis, and both ends of the spring are in contact with the opposite surfaces of the box module and the positioner respectively.

[0016] Optionally, the box module is detachably mounted on the base;

[0017] And / or, the positioner is detachably mounted on the load plate.

[0018] Optionally, at least one end of the optical axis is inwardly retracted to form a stepped surface, a threaded groove is arranged on the stepped surface, and the threaded groove is threadedly connected with the limiting part on the corresponding side to adjust the deformation amount of the mounting gap.

[0019] Optionally, the deformation amount of the mounting gap is greater than or equal to the pre-stroke of the limit switch sensor.

[0020] Optionally, a plurality of groups of mounting holes are arranged side by side on the mounting part in the extension direction of the elastic member.

[0021] Optionally, the base and the load plate are both forged aluminum alloy plates.

[0022] The beneficial effects of the present application include:

[0023] The mounting structure of the limit switch sensor provided by the present application is designed as elastic limiting contact between the limit switch sensor and the measured object, so that when the mounting structure contacts the measured object, it can be retracted under the elastic force, thereby compressing the mounting gap between the limit switch sensor and the contact probe within the effective limiting stroke range of the limit switch sensor, to realize the locking of the position or forming action of the moving part, which can be suitable for the stopping requirement of non-metallic products. At the same time, the limit switch sensor does not directly contact the moving part, which can avoid damage to the limit switch sensor caused by long-term collision of the moving part, and under the action of the spring force, the impact force between the limit switch sensor and the contact probe can be buffered, further improving the service life of the limit switch sensor. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 This is a schematic diagram of the installation structure of a limit switch sensor of the utility model;

[0025] Figure 2 For this utility model Figure 1 A schematic diagram of the structure of an optical axis having a thread groove;

[0026] In the figure: 1. Base, 2. Mounting part, 3. Load plate, 4. Contact probe, 5. Mounting gap, 6. Box module, 7. Positioner, 8. Optical axis, 9. Spring, 10. Threaded groove, 11. Limiting part, 12. Mounting hole. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1 As shown, the utility model provides a mounting structure for a limit switch sensor, which includes a base 1, a load plate 3 and several elastic members. One end of the base 1 is provided with a mounting portion 2 for mounting a limit switch sensor (such as an SN04 series limit switch sensor) to fix the limit switch sensor on the base 1; an end of the load plate 3 close to the mounting portion 2 is provided with a contact probe 4, which is a metal block that matches the position of the limit switch sensor. The contact probe 4 contacts the limit switch sensor to enable the limit switch sensor to achieve a stopping action; the elastic member is installed between the opposite surfaces of the base 1 and the load plate 3 to form an installation gap 5 between the limit switch sensor and the contact probe 4; the load plate 3 or the base 1 contacts the object to be measured to compress the elastic member to eliminate the installation gap 5. In the above, by designing an elastic limit contact between the limit switch sensor and the object to be measured, the mounting structure can retract under the elastic force when it contacts the object to be measured, thereby compressing the mounting gap 5 between the limit switch sensor and the contact probe 4 to the effective limit stroke range of the limit switch sensor, so as to achieve locking of the position or movement of the moving part, which can be applicable to the stopping requirements of non-metallic products; at the same time, the limit switch sensor is not in direct contact with the moving part, which can avoid damage to the limit switch sensor caused by long-term collision of the moving part, and under the action of the spring 9, it can buffer the impact force between the limit switch sensor and the contact probe 4, further improving the service life of the limit switch sensor.

[0029] In the embodiment, the elastic member is provided with two groups, and the two groups of elastic members are symmetrically arranged on the opposite sides of the limit switch sensor, so as to balance the impact force received by the base 1 or the load plate 3, to transmit the impact force along the extension direction of the elastic member, to avoid extruding and deforming the elastic member, and to ensure the normal use of the mounting structure. Specifically, the elastic member comprises a box module 6, a positioner 7, an optical shaft 8 and a spring 9. The box module 6 is arranged on the base 1 and is provided with a first through hole in the extension direction of the elastic member. The positioner 7 is arranged on the load plate 3 and is provided with a second through hole in the extension direction of the center line of the first through hole. The optical shaft 8 is arranged between the box module 6 and the positioner 7, and the two ends of the optical shaft 8 are provided with limit portions 11 penetrating through the first through hole and the second through hole, respectively. The spring 9 is arranged on the optical shaft 8, and the two ends of the spring 9 are in contact with the opposite surfaces of the box module 6 and the positioner 7, respectively. When the base 1 or the load plate 3 receives an impact load, the corresponding box module 6 or positioner 7 connected thereto is driven to slide along the surface of the optical shaft 8 and compress the spring 9, so as to compress the mounting gap 5 between the limit switch sensor and the contact probe 4 to the effective limit travel range of the limit switch sensor, to realize the stop action. When the stop action of the moving part fails, the mounting gap 5 between the limit switch sensor and the contact probe 4 is restored to the original state under the elastic restoring force of the spring 9, so as to stop the next moving part.

[0030] In the embodiment, the box module 6 is detachably mounted on the base 1, and the positioner 7 is detachably mounted on the load plate 3, so as to facilitate the disassembly and replacement of the elastic member. Figure 2 As shown in the above, at least one end of the optical shaft 8 is inwardly contracted to form a stepped surface, and the stepped surface is provided with a threaded groove 10, which is threadedly connected with the limit portion 11 on the corresponding side, so as to adjust the deformation amount of the mounting gap 5. Specifically, the deformation amount of the mounting gap 5 is greater than or equal to the pre-travel of the limit switch sensor. The pre-travel refers to the travel before the limit switch sensor is started, that is, a distance before the limit switch sensor is triggered, which is usually several millimeters before the limit switch sensor is triggered. The pre-travel can avoid the wear caused by the long-time work of the limit switch sensor, and can improve the work accuracy and reliability of the limit switch sensor.

[0031] In the embodiment, a plurality of groups of mounting holes 12 are provided side by side on the mounting portion 2 in the extension direction of the elastic member, so as to mount limit switch sensors of different models. Moreover, the pre-travel of the limit switch sensor can be adjusted by the front and rear position relationship of the mounting holes 12.

[0032] In the embodiment, the base 1 and the load plate 3 are both forged aluminum alloy plates, and the forged aluminum alloy plates are subjected to artificial aging treatment, so as to ensure the performance stability of the mounting structure.

Claims

1. A mounting structure of a limit switch sensor, characterized by comprising: a limit switch sensor; a bracket; a bracket support; a bracket support support; and a bracket support support support. The mounting structure comprises: a base (1) having a mounting portion (2) for mounting a limit switch sensor at one end; a load plate (3) having a contact probe (4) at one end close to the mounting portion (2), the contact probe (4) contacting the limit switch sensor to enable the limit switch sensor to achieve a stop action; a plurality of elastic members installed between opposite surfaces of the base (1) and the load plate (3) to form a mounting gap (5) between the limit switch sensor and the contact probe (4); the load plate (3) or the base (1) contacts an object to be measured to compress the elastic members to eliminate the mounting gap (5).

2. The installation structure of a limit switch sensor according to claim 1, characterized in that: The elastic members are provided in two groups and symmetrically arranged on opposite sides of the limit switch sensor.

3. The installation structure of a limit switch sensor according to claim 1, wherein The elastic members comprise: a box module (6) provided on the base (1) and having a first through hole in the extension direction of the elastic members; a positioner (7) provided on the load plate (3) and having a second through hole in the centerline extension direction of the first through hole; an optical axis (8) provided between the box module (6) and the positioner (7) and having a limiting portion (11) at both ends penetrating the first through hole and the second through hole; a spring (9) provided on the optical axis (8) and contacting opposite surfaces of the box module (6) and the positioner (7) at both ends.

4. The installation structure of a limit switch sensor according to claim 3, wherein The box module (6) is detachably mounted on the base (1); and / or, the positioner (7) is detachably mounted on the load plate (3).

5. The installation structure of a limit switch sensor according to claim 3, wherein At least one end of the optical axis (8) is inwardly retracted to form a stepped surface, and a threaded groove (10) is provided on the stepped surface, the threaded groove (10) being threadedly connected with the limiting portion (11) on the corresponding side to adjust the deformation amount of the mounting gap (5).

6. The installation structure of a limit switch sensor according to claim 1, wherein The deformation amount of the mounting gap (5) is greater than or equal to the pre-travel of the limit switch sensor.

7. The installation structure of a limit switch sensor according to claim 1, wherein A plurality of mounting holes (12) are provided side by side on the mounting portion (2) in the extension direction of the elastic members.

8. The installation structure of a limit switch sensor according to claim 1, wherein The base (1) and the load plate (3) are both forged aluminum alloy plates.

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