Proximity switch anti-impact device and proximity switch assembly

Abstract

The utility model discloses a proximity switch anti-impact device and a proximity switch assembly, and belongs to the technical field of proximity switches. The proximity switch anti-impact device comprises a carrying platform; one end of the swing arm is rotationally arranged on the carrying table, and the swing arm is provided with a meeting part for bearing collision impact; the contact pressure head is movably arranged on the carrying table, an induction piece matched with the proximity switch is arranged on the contact pressure head, and the contact pressure head is arranged in the deflection range of the contact pressure head, so that the swing arm deflects to push the contact pressure head to move; the mounting frame is arranged on the carrying table, and under the condition that a proximity switch is mounted in the mounting frame, the moving track of the contact pressure head intersects with the sensing range of the proximity switch, so that the sensing piece enters the sensing range of the proximity switch; and the reset piece is connected to the contact pressure head and the carrying table. According to the proximity switch anti-impact device and the proximity switch assembly, impact damage of the proximity switch can be reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of proximity switches, and particularly relates to a proximity switch anti-impact device and a proximity switch assembly. BACKGROUND

[0002] A proximity switch is a position detection element commonly used in an automatic production system, and is usually arranged between two relatively moving main bodies to detect the relative movement of the two main bodies. Specifically, the proximity switch usually senses whether a target object exists or is close to the proximity switch through a non-physical contact manner, and outputs a switch signal when the object enters the sensing area of the proximity switch. The main types include proximity switches of different principles such as an inductive proximity switch, a capacitive proximity switch, a photoelectric proximity switch (photoelectric sensor), an ultrasonic proximity switch, and a Hall proximity switch. Taking the Hall proximity switch as an example, the Hall proximity switch includes a permanent magnet marker and a probe with a magnetic induction detection function, and the permanent magnet and the probe are arranged on the two relatively moving main bodies, respectively. In the process of approaching the two main bodies, the permanent magnet and the probe also gradually approach synchronously, and when the probe detects a magnetic field signal of a specific strength of the permanent magnet, the probe generates a switch signal to indicate that the detection object is in place.

[0003] In actual operation conditions, in the process of relative movement of the two main bodies, the moving main body is affected by inertia and other factors, and there is a moving transition, thereby increasing the risk of collision of the moving main body with the proximity switch. The detection range of the Hall proximity switch is usually 1-10 mm, and therefore the collision risk is still high. Since the detection probe of the proximity switch is a collection of sensing elements and is usually arranged on a stationary main body (such as a field base and a field platform), the detection probe is easily damaged by collision with the moving main body, thereby greatly reducing the reliability of position detection and being harmful to production safety. SUMMARY

[0004] The application provides a proximity switch anti-impact device and a proximity switch assembly, and aims to at least solve the technical problem that the proximity switch is easily damaged by impact of a moving main body in the process of relative approach of two relatively moving main bodies. To this end,

[0005] In one aspect of the application, a proximity switch anti-impact device is provided, which includes:

[0006] a carrier;

[0007] an oscillating arm, one end of which is rotatably arranged on the carrier, and a collision-impact-receiving impact-receiving part is arranged on the oscillating arm;

[0008] A contact pressure head is movably arranged on the platform, and a sensing member is arranged on the contact pressure head to cooperate with the proximity switch, and the contact pressure head is arranged within a deflection range of the contact pressure head so that the swing arm deflection pushes the contact pressure head to move;

[0009] A mounting frame is arranged on the platform, and when the proximity switch is arranged in the mounting frame, the moving track of the contact pressure head intersects with the sensing range of the proximity switch so that the sensing member enters the sensing range of the proximity switch;

[0010] A reset member is connected to the contact pressure head and the platform.

[0011] In some embodiments, the swing arm comprises:

[0012] A pivot seat is arranged on the platform;

[0013] A swing arm body is pivotally connected to one end of the pivot seat, and the impact part is arranged on the swing arm body.

[0014] In some embodiments, the swing arm abuts against the contact pressure head.

[0015] In some embodiments, the impact part is provided with a wear-resistant coating.

[0016] In some embodiments, the proximity switch impact-resistant device further comprises a contact block arranged on the monitoring object of the proximity switch.

[0017] In some embodiments, the contact pressure head comprises a head and a guide rod;

[0018] The guide rod is movably embedded in a through hole arranged on the platform, the head is connected to a first end of the guide rod, the sensing member is arranged on a second end of the guide rod, and the reset member is connected to the head and the platform.

[0019] In some embodiments, the second end of the guide rod is provided with a stop flange, and the stop flange is arranged on a side of the platform away from the head.

[0020] In some embodiments, the reset member is a spiral spring, the spiral spring is sleeved on the guide rod, and the two ends of the spiral spring abut against the head and the platform respectively.

[0021] In some embodiments, a stop boss is protruded on the peripheral surface of the guide rod, and the two ends of the spiral spring abut against the stop boss and the platform respectively.

[0022] Another aspect of the embodiment of the present application also provides a proximity switch assembly comprising a proximity switch and the proximity switch anti-impact device, wherein the proximity switch is mounted on the mounting frame.

[0023] The embodiment of the present application has at least the following beneficial effects:

[0024] The proximity switch anti-impact device and the proximity switch assembly provided by the embodiment of the present application comprise a carrier, a swing arm, a contact head, a mounting frame and a reset member; the contact head is movably arranged on the carrier along a set trajectory, and an inductor matched with the proximity switch is arranged on the contact head, so that the contact head is moved to make the inductor enter the induction range of the proximity switch, and the in-place detection is realized; the swing arm is pivotally mounted on the carrier, and when impacted by a moving monitoring object, the swing arm is deflected relative to the carrier and pushes the contact head to make the inductor trigger the proximity switch, so that the swing arm and the contact head can bear the impact, the proximity switch is prevented from directly bearing the impact, the risk of damage to the proximity switch caused by the impact is greatly reduced, and the reliability of the in-place detection structure is maintained. Meanwhile, the contact head can be buffered by the reset member, and the impact effect can be weakened synchronously. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0026] Figure 1 A perspective structural schematic view of the proximity switch anti-impact device in the embodiment of the present application is shown;

[0027] Figure 2 A working state schematic view of the proximity switch anti-impact device in Figure 1 is shown.

[0028] Reference signs:

[0029] 1-carrier, 2-swing arm, 21-swing arm body, 21a-impact part, 22-pivot seat, 23-contact block, 3-contact head, 31-end, 32-guide rod, 32a-stop flange, 32b-stop boss, 4-mounting frame, 5-reset member, 51-spiral spring, 6-proximity switch, 61-inductor. DETAILED DESCRIPTION

[0030] With reference to the drawings and specific embodiments described below, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0031] In addition, the present application can repeat reference numerals and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art can realize the application of other processes and / or the use of other materials.

[0032] The present application will be described below in conjunction with the drawings and specific embodiments:

[0033] The proximity switch is a position detection element commonly used in an automated production system, and is usually arranged between two relatively moving main bodies to detect the relative movement of the two to the position. In actual operation, the moving main body has the risk of colliding and damaging the proximity switch, which is not conducive to the reliability of the automated control.

[0034] Therefore, the embodiments of the present application provide a proximity switch mounting device and a proximity switch assembly, which aim to constrain and protect the sensing end of the proximity switch to some extent, achieve impact resistance, and improve the functional reliability of the proximity switch.

[0035] Figure 1 A perspective structural schematic diagram of the proximity switch impact resistance device in the embodiments of the present application is shown; Figure 2 A working state schematic diagram of the proximity switch impact resistance device in Figure 1

[0036] Referring to Figure 1 and Figure 2 In some embodiments, the proximity switch impact resistance device separates the proximity switch 6 and the monitoring main body of the proximity switch, and the monitored main body bears the impact through the proximity switch impact resistance device, thereby reducing the risk of impact damage to the proximity switch 6.

[0037] ​The proximity switch anti-impact device can include a carrier 1, a swing arm 2, a contact head 3, a mounting frame 4, and a reset member 5. The swing arm 2 is pivotally connected to the carrier 1, and the contact head 3 is movably arranged on the carrier 1. Under the action of external force, the swing arm 2 is deflected relative to the carrier 1, and pushes the contact head 3 to move. The mounting frame 4 is arranged on the carrier 1 and is used for mounting the proximity switch 6. The reset member 5 is connected between the contact head 3 and the carrier 1, so as to keep the position of the contact head 3 or to reset the contact head 3.

[0038] Specifically, the carrier 1 is a mounting base of the proximity switch anti-impact device, is mounted on a production line, and is used as a bearing base to mount other components.

[0039] One end of the swing arm 2 is rotatably arranged on the carrier 1 and can be deflected relative to the carrier 1 under the action of external force. In order to withstand the impact of a monitored object, a striking part 21a can be arranged on the swing arm 2. When the monitored object moves to abut against the swing arm 2, the contact head 3 can be pushed to move.

[0040] The contact head 3 is movably arranged on the carrier 1, and an inductor 61 cooperating with the proximity switch 6 is arranged on the contact head 3. Therefore, when the contact head 3 is subjected to the pushing force of the swing arm 2, the contact head 3 carries the inductor 61 to move, and when the inductor 61 enters the sensing range of the proximity switch 6, the proximity switch 6 can be triggered. Therefore, the contact head 3 can be arranged in the deflection range of the swing arm 2, so that the swing arm 2 pushes the contact head 3 to move. After position matching design, the moving track of the inductor 61 intersects with the sensing range of the proximity switch 6, so as to ensure the reliability of triggering.

[0041] The mounting frame 4 is a mounting structure of the proximity switch 6 and can be arranged on the carrier 1. The mounting position of the mounting frame 4 is reasonably planned, so that when the proximity switch 6 is mounted in the mounting frame 4, the moving track of the contact head 3, in particular, the moving track of the inductor 61 intersects with the sensing range of the proximity switch 6, so that the inductor 61 enters the sensing range of the proximity switch 6. Generally, the moving track of the inductor 61 can also be arranged to be dislocated from the mounting frame 4 and the proximity switch 6, and does not directly intersect, so as to avoid direct impact damage.

[0042] The reset member 5 is connected between the contact head 3 and the carrier 1, so as to reset the contact head 3 which is out of position, so as to keep the contact head 3 in standby position and ensure the reliability of position detection.

[0043] It is worth mentioning that the reset member 5 can also buffer the impact of the contact pressure head 3, so as to weaken the overall impact of the proximity switch anti-impact device to a certain extent, and reduce the risk of impact damage to the proximity switch 6.

[0044] In some embodiments, the carrier 1 can be provided as a plate-shaped member, and a through hole is formed in the plate-shaped member for accommodating the movement of the contact pressure head 3 along the through hole.

[0045] Generally, one end of the swing arm 2 and the contact pressure head 3 can be arranged on one side of the plate surface of the carrier 1, and the mounting bracket 4, the proximity switch 6, and the other end of the contact pressure head 3, that is, the side where the sensing member 61 is located, can be arranged on the other side of the plate surface of the carrier 1, so as to arrange the collision function area and the sensing function area on the two sides of the carrier 1 respectively, and isolate them from each other, thereby greatly reducing the risk of impact damage to the proximity switch 6.

[0046] In some embodiments, the swing arm 2 can include a swing arm body 21 and a pivot seat 22, the pivot seat 22 is arranged on the carrier 1, one end of the swing arm body 21 is pivotally connected to the pivot seat 22, and the impact portion 21a is arranged on the swing arm body 21.

[0047] In some embodiments, the swing arm 2 can be abutted against the contact pressure head 3, so as to be able to quickly push the contact pressure head 3 when impacted, and make the proximity switch 6 quickly respond to the in-place signal.

[0048] In some embodiments, in order to prolong the service life of the swing arm 2, the impact portion 21a can be provided with a wear-resistant coating.

[0049] In some embodiments, the proximity switch anti-impact device further includes a contact block 23 arranged on the monitoring object of the proximity switch 6 to follow the movement of the monitoring object and collide with the impact portion 21a.

[0050] The contact block 23 can be provided as a rubber block or the like to reduce the collision damage.

[0051] In some embodiments, in order to balance the reliability of collision and directional movement, the contact pressure head 3 can include a tip 31 and a guide rod 32, the guide rod 32 is movably embedded in the through hole formed in the carrier 1, the tip 31 is connected to the first end of the guide rod 32, the sensing member 61 is arranged on the second end of the guide rod 32, and the reset member 5 is connected to the tip 31 and the carrier 1.

[0052] The tip 31 is the part that collides with the swing arm 2, and the guide rod 32 is used to keep the movement track of the contact pressure head 3 stable.

[0053] The guide rod 32 is movably embedded in a through hole of the carrier 1, the end head 31 is connected to a first end of the guide rod 32, the sensing member 61 is arranged at a second end of the guide rod 32, and the reset member 5 is connected to the end head 31 and the carrier 1.

[0054] That is, the guide rod 32 and the carrier 1 form a guide matching structure to keep the moving track of the end head 31 stable.

[0055] Generally, the end head 31 should also have a certain impact area, thereby having a certain fault tolerance, that is, even if the moving body has a certain degree of deflection, the contact and pushing can be realized.

[0056] In some embodiments, the end head 31 can be provided as a hemispherical member with a stable thickness and impact area.

[0057] In some embodiments, in order to limit the guide rod 32, a stop flange 32a is arranged at the second end of the guide rod 32, and the stop flange 32a is arranged on the side of the carrier 1 away from the end head 31, thereby limiting the guide rod 32 from being separated from the carrier 1.

[0058] In some embodiments, in order to keep the force of the contact pressure head 3 uniform, the reset member 5 can be a spiral spring 51, the spiral spring 51 is sleeved on the guide rod 32, and the two ends of the spiral spring 51 abut against the end head 31 and the carrier 1, respectively.

[0059] In some embodiments, in order to facilitate the fixation of the spiral spring 51, a stop boss 32b is protruded on the peripheral surface of the guide rod 32, and the two ends of the spiral spring 51 abut against the stop boss 32b and the carrier 1, respectively.

[0060] In some embodiments, a proximity switch assembly is also provided, which comprises a proximity switch 6 and the proximity switch anti-impact device, and the proximity switch 6 is installed on the mounting frame 4.

[0061] The embodiments of the present application have at least the following beneficial effects:

[0062] The proximity switch anti-impact device and the proximity switch assembly provided by the embodiments of the present application include a carrier, a swing arm, a contact pressure head, a mounting frame and a reset member; the contact pressure head is movably arranged on the carrier along a set track, and an inductor matched with the proximity switch is arranged on the contact pressure head, so that the contact pressure head is moved to make the inductor enter the induction range of the proximity switch, and the in-place detection is realized; the swing arm is deflectably arranged on the carrier, when the swing arm is impacted by a moving monitoring object, the swing arm is deflected relative to the carrier and pushes the contact pressure head to make the inductor trigger the proximity switch, so that the swing arm and the contact pressure head can bear the impact, the proximity switch is prevented from directly bearing the impact, the risk of the proximity switch being damaged by the impact is greatly reduced, and the reliability of the in-place detection structure is maintained. Meanwhile, the contact pressure head can be buffered by the reset member, and the impact is weakened synchronously.

[0063] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature, which can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0064] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0065] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative positional relationship, motion condition and the like between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0066] In the present application, unless specifically defined otherwise and limited, the terms "connected", "fixed", and the like should be construed as being broad, for example, "fixed" can be fixed connection, or detachable connection, or integrated; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be internal communication of two elements, or interaction relationship of two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0067] In addition, in the present application, the description such as "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0068] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present application.

[0069] In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that the ordinary skilled in the art can realize it, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection claimed by the present application.

[0070] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and deformations can be made to these embodiments without departing from the principles and purposes of the present application, the scope of the present application is defined by the claims and their equivalents.

Claims

1. A proximity switch shock resistant device characterized by, The application relates to a proximity switch anti-impact device. The application relates to a proximity switch anti-impact device. The application relates to a proximity switch anti-impact device. The application relates to a proximity switch anti-impact device. The application relates to a proximity switch anti-impact device. The application relates to a proximity switch anti-impact device.

2. The proximity switch shock resistant device of claim 1, wherein, The application relates to a proximity switch anti-impact device. The application relates to a proximity switch anti-impact device. The application relates to a proximity switch anti-impact device.

3. The proximity switch shock resistant device of claim 1, wherein, The application relates to a proximity switch anti-impact device.

4. The proximity switch shock resistant device of claim 1, wherein, The application relates to a proximity switch anti-impact device.

5. The proximity switch shock resistant device of claim 1, wherein, The application relates to a proximity switch anti-impact device.

6. A shock absorbing device for a proximity switch according to any one of claims 1 to 5, wherein The application relates to a proximity switch anti-impact device. The application relates to a proximity switch anti-impact device.

7. The proximity switch shock resistant device of claim 6, wherein, The application relates to a proximity switch anti-impact device.

8. The proximity switch shock resistant device of claim 7, wherein, The application relates to a proximity switch anti-impact device.

9. The proximity switch shock resistant device of claim 8, wherein, The application relates to a proximity switch anti-impact device.

10. A proximity switch assembly characterized by, The application relates to a proximity switch anti-impact device. The application relates to a proximity switch anti-impact device. The application relates to a proximity switch anti-impact device. The application relates to a proximity switch anti-impact device. The application relates to a proximity switch anti-impact device. The application relates to a proximity switch anti-impact device. The application relates to a proximity switch anti-impact device. The application relates to a proximity switch anti-impact device. The application relates to a proximity switch anti-impact device. The application relates to a proximity switch anti-impact device. The application relates to a proximity switch anti-impact device. The application relates to a proximity switch anti-impact device. The application relates to a proximity switch anti-impact device. The application relates to a proximity switch anti-impact device. 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