Step height detection device

Abstract

The utility model discloses a step height detection device, comprising a detection unit which comprises a displacement sensor used for detecting a displacement distance; the fixed support is vertically provided with a first through hole, and the displacement sensor is arranged above the fixed support; the first abutting piece is arranged in the first through hole in an embedded and penetrating mode, and a second through hole is vertically formed in the first abutting piece; the second abutting piece is embedded in the second through hole in a penetrating mode and abuts against the detection end of the displacement sensor; when the fixing support moves downwards and the first abutting piece bears force in an abutting mode, the second abutting piece can move downwards. According to the technical scheme, the detection structure is simplified, and meanwhile step height detection is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection, and particularly relates to a step height detection device. Background Art

[0002] In industrial automation, robotics, and many fields that require precise position control, height measurement and position detection are crucial. Traditional solutions often rely on displacement sensors to achieve this goal. Especially in application scenarios where the heights of two positions need to be monitored simultaneously, two independent displacement sensors are usually used for separate measurements. However, although this existing technology meets the basic requirements to a certain extent, it also exposes a series of significant disadvantages and limitations. Using two independent displacement sensors for height detection leads to an increase in hardware costs. Each sensor requires separate procurement, installation, and maintenance costs, which undoubtedly increases the economic burden for application scenarios with strict cost control requirements. Especially in large-scale deployments or high-end applications, the cost issue is particularly prominent. Summary of the Utility Model

[0003] The main purpose of the utility model is to provide a step height detection device, aiming to simplify the detection structure while realizing the detection of step height.

[0004] To achieve the above object, the step height detection device proposed by the utility model includes a detection unit, and the detection unit includes:

[0005] A displacement sensor for detecting the displacement distance;

[0006] A fixed bracket vertically provided with a first through hole, and the displacement sensor is arranged above the fixed bracket;

[0007] A first abutting member fittingly penetrating through the first through hole, and the first abutting member is vertically provided with a second through hole;

[0008] A second abutting member fittingly penetrating through the second through hole and abutting against the detection end of the displacement sensor;

[0009] When the fixed bracket moves downward and the first abutting member is subjected to force, the second abutting member can move downward.

[0010] In some embodiments of the utility model, the first abutting member includes an abutting block and an abutting sleeve, the abutting sleeve penetrates through the first through hole and the second abutting member penetrates through the abutting sleeve; the abutting member is fixed to one end of the abutting sleeve.

[0011] In some embodiments of the present utility model, the second abutting member includes an abutting shaft, the abutting shaft is disposed through the abutting sleeve, one end of the abutting shaft is in force abutment with the displacement sensor, and the other end of the abutting shaft is flush with the end face of the abutting block, and the abutting block is located on the radial side of the abutting shaft.

[0012] In some embodiments of the present utility model, it further includes a fixing plate and a transfer mechanism, the transfer mechanism is in transmission connection with the fixing plate, a plurality of the detection units are disposed at intervals on the periphery of the fixing plate, and the transfer mechanism is used to drive the fixing plate to move in the vertical direction.

[0013] In some embodiments of the present utility model, it further includes a guide bushing, and positioning grooves for fixing the guide bushing are provided on the inner side walls of the first through hole and the second through hole.

[0014] In some embodiments of the present utility model, the transfer mechanism is a lifting cylinder.

[0015] In the technical solution of the present utility model, when performing the step structure detection, the abutting ends of the first abutting member and the second abutting member are in the same plane. Since the first abutting member and the second abutting member are in a sleeved relationship, when the first abutting member abuts, the first abutting member drives the second abutting member to transmit force feedback to the detection end of the displacement sensor, and the vertical feedback of the displacement sensor can be realized. When the first abutting member first contacts the product to be inspected and slides upward through the first through hole, the displacement sensor compresses and feeds back a displacement value. The second abutting member then contacts the detection product, and it moves through the second through hole by itself to trigger the displacement sensor, and the displacement sensor will feed back a displacement value. Since the step height of the measured product position is a fixed value, the feedback value of the displacement sensor is also the relative displacement value after the first abutting member and the second abutting member rebound, thereby realizing the detection of the relative height by one displacement sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0017] Figure 1 is a schematic structural diagram of the step height detection device of the present utility model;

[0018] Figure 2 is a perspective view of the structure of the detection unit of the present utility model.

[0019] Explanation of the reference numerals in the drawings:

[0020] 1000, Detection unit; 100, Displacement sensor; 200, Fixed bracket; 300, First abutting member; 310, Abutting block; 320, Abutting sleeve; 400, Second abutting member; 410, Abutting shaft; 500, Fixed plate; 600, Transfer mechanism; 700, Guide bushing;

[0021] The realization, functional features and advantages of the present utility model will be further described in conjunction with embodiments and with reference to the accompanying drawings. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0023] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0024] In addition, the descriptions involving "first", "second", etc. in the present utility model are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions appears to be contradictory or unable to be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0025] Refer to the attached Figure 1-2 , the present utility model provides a step height detection device, including a detection unit 1000, and the detection unit 1000 includes:

[0026] A displacement sensor 100, and the displacement sensor 100 is used to detect the displacement distance;

[0027] A fixed bracket 200, and the fixed bracket 200 is vertically provided with a first through hole, and the displacement sensor 100 is disposed above the fixed bracket 200;

[0028] The first abutting member 300 is fitted and inserted through the first through hole. The first abutting member 300 is vertically provided with a second through hole.

[0029] The second abutting member 400 is fitted and inserted through the second through hole and abuts against the detection end of the displacement sensor 100.

[0030] When the fixed bracket 200 moves downward and the first abutting member 300 abuts and receives force, the second abutting member 400 can move downward.

[0031] Based on the above technical features, when detecting the step structure, the abutting ends of the first abutting member 300 and the second abutting member 400 are made to be in the same plane. Since the first abutting member 300 and the second abutting member 400 are in a sleeved relationship, when the first abutting member 300 abuts, the first abutting member 300 drives the second abutting member 400 to receive force and feedback to the detection end of the displacement sensor 100, enabling vertical feedback of the displacement sensor 100. When the first abutting member 300 first contacts the product to be inspected and moves upward through the first through hole by sliding, the displacement sensor 100 compresses and feedbacks a displacement value. The second abutting member 400 then contacts the detection product, and it moves through the second through hole by itself to trigger the displacement sensor 100, and the displacement sensor 100 will feedback a displacement value. Since the step height of the measured product position is a fixed value, the feedback value of the displacement sensor 100 is also the relative displacement value after the first abutting member 300 and the second abutting member 400 rebound, thereby realizing the detection of the relative height by a single displacement sensor 100.

[0032] Further, the first abutting member 300 includes an abutting block 310 and an abutting sleeve 320. The abutting sleeve 320 is inserted through the first through hole and the second abutting member 400 is inserted through the abutting sleeve 320. The abutting member is fixed to one end of the abutting sleeve 320, realizing the insertion of the fixed bracket 200 while satisfying the insertion of the second abutting member 400, and at the same time realizing the axial guidance of the second abutting member 400.

[0033] Specifically, the second abutting member 400 includes an abutting shaft 410. The abutting shaft 410 is inserted through the abutting sleeve 320. One end of the abutting shaft 410 abuts against the displacement sensor under force, and the other end of the abutting shaft 410 is flush with the end face of the abutting block. The abutting block is located on the radial side of the abutting shaft 410. The abutting feedback is realized through the abutting shaft 410, and by making the abutting block located on the radial side of the abutting shaft 410, the relative height detection of the workpiece step can be satisfied, and the abutting of the abutting block and the abutting shaft 410 on different planes can be realized.

[0034] In this embodiment, a fixing plate 500 and a transfer mechanism 600 are further included. The transfer mechanism 600 is in transmission connection with the fixing plate 500. A plurality of detection units 1000 are arranged at intervals on the circumferential side of the fixing plate 500. The transfer mechanism 600 is used to drive the fixing plate 500 to move in the vertical direction, so as to realize the detection of the relative heights of multiple steps of the workpiece.

[0035] Wherein, a guide bushing 700 is further included. Positioning grooves for fixing the guide bushing 700 are formed in the inner side walls of the first through hole and the second through hole. Through the vertical sliding abutting cooperation between the guide bushing 700 and the first abutting member 300 and the second abutting member 400, the friction loss is reduced while the detection accuracy is improved.

[0036] Further, the transfer mechanism 600 is a lifting cylinder to realize the transmission of the fixing plate 500 in the vertical direction.

[0037] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the inventive concept of the present invention, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A step height detection device, characterized in that: A detection unit is included, wherein the detection unit includes: A displacement sensor, wherein the displacement sensor is used to detect a displacement distance; A fixed bracket, wherein the fixed bracket is vertically provided with a first through hole, and the displacement sensor is arranged above the fixed bracket; A first abutment member, the first abutment member is embedded in the first through hole, and a second through hole is vertically formed in the first abutment member; a second abutment member, the second abutment member being embedded in the second through hole and abutting against the detection end of the displacement sensor; When the fixing bracket moves from the bottom and the first abutting member abuts against a force, the second abutting member can move from the bottom.

2. The step height detection device according to claim 1, characterized in that: The first abutment member includes an abutment block and an abutment sleeve. The abutment sleeve is penetrated through the first through hole and the second abutment member is penetrated through the abutment sleeve. The abutment member is fixed to one end of the abutment sleeve.

3. The step height detection device according to claim 2, characterized in that: The second abutment member includes an abutment shaft, which is passed through the abutment sleeve, one end of which abuts against the displacement sensor, and the other end of which is flush with the end surface of the abutment block, and the abutment block is located on one radial side of the abutment shaft.

4. The step height detection device according to claim 1, characterized in that: It also includes a fixed plate and a transfer mechanism, the transfer mechanism is transmission-connected to the fixed plate, a plurality of the detection units are spaced apart around the fixed plate, and the transfer mechanism is used to drive the fixed plate to move in a vertical direction.

5. The step height detection device according to claim 1, characterized in that: It also includes a guide bushing, and the inner side walls of the first through hole and the second through hole are both provided with positioning grooves for fixing the guide bushing.

6. The step height detection device according to claim 4, characterized in that: The transfer mechanism is a lifting cylinder.

Images