Position adjusting device for correlation type photoelectric sensor

Abstract

The utility model provides a position adjusting device for a correlation type photoelectric sensor, and the device is characterized in that a first adjusting support and a second adjusting support respectively comprise an adjusting support main body, the adjusting support main body comprises two third assembly holes, when a first support assembly is assembled, the third assembly holes can be aligned with the first assembly holes, and the second assembly holes are aligned with the second assembly holes; when the second support assembly is assembled, the third assembling hole can be aligned with the second assembling hole. The screw rod penetrates through the third assembling hole, and when the first support assembly and the second support assembly are assembled respectively, the screw rod can penetrate through the first assembling hole, the first nut, the second assembling hole and the second nut respectively; the first support assembly and the second support assembly are arranged in the mode that when the screw rotates, the first support or the second support can move on the screw in the length direction of the screw. According to the position adjusting device, the position of the correlation type photoelectric sensor can be simply and quickly adjusted.

Description

Technical Field

[0001] The present application relates to the field of through-beam photoelectric sensors, and in particular to a position adjustment device for through-beam photoelectric sensors. Background Art

[0002] As an important signal detection element, through-beam photoelectric sensors or switches are used in many scenarios and over a wide range in industrial production workshops.

[0003] As known to those skilled in the art, the working principle of a through-beam photoelectric sensor or photoelectric switch is: the transmitter emits light, and the light enters the receiver directly or is reflected by the reflective end and enters the receiver. When the detected object passes through the path between the transmitter and the receiver and blocks the light, the photoelectric sensor or switch generates a signal. The through-beam photoelectric sensor includes a transmitter and a receiver, wherein the transmitter and the receiver can be separated or on one body. In the latter case, the through-beam photoelectric sensor also includes a reflector, and the receiver receives the light reflected from the reflector. This through-beam photoelectric sensor has only one sensor body, so the wiring is simpler than that of a split photoelectric sensor, and the cost is relatively lower.

[0004] Both through-beam photoelectric sensors require two parts that are relatively set, the transmitter and the reflector in the split through-beam photoelectric sensor, and the transmitter-receiver body and the reflector in the reflective through-beam photoelectric sensor. In use, in order to align the two relatively set parts of the through-beam photoelectric sensor with each other, an adjustment device is required.

[0005] At present, the known adjustment device for the through-beam photoelectric sensor is a perforated bracket, which is fixed by gaskets, screws, and nuts. When the signal detection is abnormal or the bracket is deformed, it is often necessary to calibrate its installation position by loosening the nut, adjusting it, and finally locking it. The disadvantage of this method is that it is time-consuming and labor-intensive, and inefficient. In addition, when the sensing distance is far or the sensing environment is dark, it is difficult to calibrate the photoelectric transmitting end and the reflecting end, which is not conducive to the rapid processing of abnormal signals. Summary of the invention

[0006] In view of the defects of the existing position calibration method of the through-beam type photoelectric sensor, an adjustment device for the through-beam type photoelectric sensor of the present application is provided.

[0007] According to one object of the present application, a position adjustment device for a through-beam type photoelectric sensor is provided, which can simply and quickly adjust the position of the through-beam type photoelectric sensor.

[0008] According to another object of the present application, a position adjustment device for a through-beam photoelectric sensor is provided, which can accurately adjust the position of the through-beam photoelectric sensor.

[0009] According to another object of the present application, a position adjustment device for a through-beam photoelectric sensor is provided, which can flexibly adjust the position of the transmitting end.

[0010] The present application provides a position adjustment device for a through-beam photoelectric sensor, comprising a first bracket assembly and a second bracket assembly, wherein the first bracket assembly is used to adjust the position of a transmitting end component of the through-beam photoelectric sensor, comprising a first bracket and a first adjustment support, the transmitting end component is mounted on the first bracket, the first bracket comprises a first assembly hole and a first nut fixed on the first bracket and aligned with the first assembly hole, the second bracket assembly is used to adjust the position of a reflecting end component or a receiving end component of the through-beam photoelectric sensor, comprising a second bracket and a second adjustment support, the reflecting end component or the receiving end component is mounted on the second bracket, the second bracket comprises a second assembly hole and a first nut fixed on the second bracket and aligned with the second assembly hole The second nut is characterized in that the first adjustment support and the second adjustment support each include: an adjustment support body, the adjustment support body includes two third assembly holes, when assembling the first bracket assembly, the third assembly hole can be aligned with the first assembly hole, when assembling the second bracket assembly, the third assembly hole can be aligned with the second assembly hole; and a screw rod passing through the third assembly hole, and when the first bracket assembly and the second bracket assembly are respectively assembled, the screw rod can respectively pass through the first assembly hole, the first nut and the second assembly hole, and the second nut; wherein the first bracket assembly and the second bracket assembly are arranged so that when the screw rod rotates, the first bracket or the second bracket can move on the screw rod along the length direction of the screw rod.

[0011] Preferably, the first adjustment support and the second adjustment support each include at least one bearing, wherein the outer ring of the bearing is fixed on the adjustment support body and is arranged concentrically with the third assembly hole, wherein the screw passes through the bearing and is fixed on the inner ring of at least one bearing, and the bearing is arranged on the inner side or the outer side of the third assembly hole.

[0012] Preferably, the adjustment support body is in a "[" shape, including an adjustment support bottom plate and two adjustment support side plates located on both sides of the adjustment support bottom plate, wherein the third assembly hole is located on each of the adjustment support side plates.

[0013] Preferably, the screw is fixed to the inner ring of the bearing by spot welding, or the screw is fixed to the inner ring of the bearing by two third nuts, the two third nuts are connected to the screw and fastened to both sides of the inner ring of the corresponding bearing; therefore, the screw, the two third nuts and the inner ring of the bearing can rotate as a whole under the support of the outer ring of the bearing fixed to the main body. The outer diameter of the third nut is smaller than the diameter of the third assembly hole and smaller than the inner diameter of the outer ring of the bearing, so the outer ring of the bearing will not interfere with the rotation of the third nut.

[0014] Preferably, at least one bolt is disposed on the outer side of the adjusting support bottom plate of the adjusting support body for mounting the adjusting support.

[0015] Preferably, the screw is a full-thread long screw, including a screw head for connecting to a tool for rotating the screw.

[0016] Preferably, the first bracket includes a first main body in a rectangular frame shape, which can realize the hidden protection installation of the transmitting end component. The first main body includes a first side plate, a first top plate and a first bottom plate, any one or more of the first side plate and the first top plate include a transmitting end component installation hole, two first assembly holes are respectively located on the two first side plates and are aligned with each other, the first nut is fixed to the first main body at at least one of the first assembly holes, and the first assembly hole and the first nut are used to allow the screw of the adjustment support to pass through.

[0017] Preferably, the first body is formed of a steel plate, the launch end component mounting hole comprises a circular hole and an arc-shaped hole, wherein the arc-shaped hole is concentric with the circular hole, and the arc-shaped hole enables the up and down position of the launch end component to be adjusted within a small range.

[0018] Preferably, the first body further comprises a long hole for wiring of the transmitting end components.

[0019] Preferably, the second bracket includes an L-shaped second main body and a rib fixed on the second main body, the rib includes the second assembly hole, the second nut is fixed on at least one side of the second assembly hole, the hole and the nut are used to allow the screw of the adjustment support to pass through, and the second main body includes at least one reflective end component mounting hole.

[0020] Preferably, the rib plate comprises a chamfer to facilitate cooperation with the L-shaped second body.

[0021] Preferably, the adjustment support bodies of the first adjustment support and the second adjustment support both include a scale, and the first support and the second support respectively include a mark capable of indicating the scale of the scale, thereby facilitating precise adjustment of the relative position of the through-beam photoelectric sensor.

[0022] Preferably, there is a gap between the bottom surface of the first bracket and the upper surface of the first adjustment support, and / or there is a gap between the bottom surface of the second bracket and the upper surface of the second adjustment support, thereby facilitating the movement of the first bracket and the second bracket on the first adjustment support and the second adjustment support respectively.

[0023] The position adjustment device for the through-beam photoelectric sensor according to the present application has the following advantages: the position adjustment operation is simple and fast through the screw and nut transmission; the position can be accurately adjusted by adjusting the scale on the bottom plate of the support; the vertical position of the photoelectric sensor transmitting end component can be flexibly adjusted through the arc hole of the transmitting end bracket. Moreover, the raw materials used in the position adjustment device according to the present application are all short materials and waste materials commonly used on site, and the waste materials can be reused to save costs; it is convenient for on-site production and installation. In short, the use of the position adjustment device according to the present application to adjust the position of the through-beam photoelectric sensor saves calibration time, reduces the collision loss of the photoelectric sensor, ensures the stability of the photoelectric signal, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Aspects of the present disclosure will be better understood after reading the following detailed description in conjunction with the accompanying drawings, in which:

[0025] Figure 1a A perspective view showing a transmitting end bracket of a position adjustment device according to the present application;

[0026] Figure 1b A front view showing a transmitting end bracket of a position adjustment device according to the present application;

[0027] Figure 1c A right side view of a transmitting end bracket of a position adjustment device according to the present application is shown;

[0028] Figure 1d A left side view of a transmitting end bracket of a position adjustment device according to the present application is shown;

[0029] Figure 1e A top view showing a transmitting end bracket of a position adjustment device according to the present application;

[0030] Figure 2a A perspective view showing a reflective end bracket of a position adjustment device according to the present application;

[0031] Figure 2bA front view showing a reflective end bracket of a position adjustment device according to the present application;

[0032] Figure 2c A left side view of a reflective end bracket of a position adjustment device according to the present application is shown;

[0033] Figure 2d A right side view of the reflective end bracket of the position adjustment device according to the present application is shown;

[0034] Figure 2e A top view showing a reflective end bracket of a position adjustment device according to the present application;

[0035] Figure 3a A perspective view showing the main body of the adjustment support of the position adjustment device according to the present application;

[0036] Figure 3b Another perspective view showing the main body of the adjustment support of the position adjustment device according to the present application;

[0037] Figure 3c A front view showing the main body of the adjustment support of the position adjustment device according to the present application;

[0038] Figure 3d A left side view showing the main body of the adjustment support of the position adjustment device according to the present application;

[0039] Figure 3e A top view showing the main body of the adjustment support of the position adjustment device according to the present application;

[0040] Figure 3f A perspective view showing a screw of the adjustment support;

[0041] Figure 4a A perspective view showing the assembled launch end bracket and adjustment support;

[0042] Figure 4b A front view showing the assembled launch end bracket and adjustment support;

[0043] Figure 4c A right side view showing the assembled launch end bracket and adjustment support;

[0044] Figure 4d A left side view showing the assembled launch end bracket and adjustment support;

[0045] Figure 5a A perspective view showing the assembled reflector end bracket and adjustment support;

[0046] Figure 5b A front view showing the assembled reflector end bracket and adjustment support;

[0047] Figure 5cA rear view showing the assembled reflector end bracket and adjustment support;

[0048] Figure 5d A right side view showing the assembled reflector end bracket and adjustment support;

[0049] Figure 5e A left side view showing the assembled reflector end bracket and adjustment support;

[0050] Figure 5f A top view showing the assembled reflector end bracket and adjustment support;

[0051] Figure 6 For along Figure 4d A cross-sectional view along line AA in FIG. 1 shows another embodiment in which the screw is fixed to the inner ring of the bearing;

[0052] Figure 7a A perspective view showing yet another embodiment wherein the adjustment support includes graduated lines; and

[0053] Figure 7b Show Figure 7a A top view of an embodiment of the present invention. DETAILED DESCRIPTION

[0054] The present application provides a position adjustment device for a through-beam photoelectric sensor with a simple structure and easy operation. For the purpose of illustration, the following description is made by taking a reflective through-beam photoelectric sensor as an example, that is, the through-beam photoelectric sensor includes a transmitting end component and a reflecting plate, wherein the transmitting end component includes a photoelectric transmitter and a receiver.

[0055] The position adjustment device for the through-beam photoelectric sensor according to the present application includes three parts: a transmitting end bracket, a reflecting end bracket and an adjustment support, wherein the transmitting end bracket and the reflecting end bracket are respectively assembled on the adjustment support to form a transmitting end adjustment component and a reflecting end adjustment component.

[0056] First reference Figure 1a-1e The transmitting end bracket 1 is described, wherein Figure 1a-1e The three-dimensional view, front view, left view, right view and top view of the transmitting end bracket 1 are respectively shown.

[0057] The transmitting end bracket 1 is used to fix and position the transmitting end component (not shown) of the through-beam type photoelectric sensor.

[0058] like Figure 1a-1e As shown, the transmitting end bracket 1 includes a main body 11 which is a substantially rectangular frame, and can realize the concealed protection installation of the transmitting end components. The main body 11 can be formed of a steel plate, including side plates 111, 112, a top plate 113 and a bottom plate 114. The transmitting end component of the through-beam photoelectric sensor can be fixed at any position of the main body 11. For example, Figure 1dAs shown, the left side plate 111 of the main body 11 includes a circular hole 1110 and an arc hole 1111 for mounting the transmitting end component, wherein the arc hole 1111 is concentric with the circular hole 1110. The elongated transmitting end component is fixed to the left side plate 111 near its first end, for example, by a screw passing through the circular hole 1110, and is fixed to the left side plate 111 at a certain distance from the first end, for example, by a screw passing through the arc hole 1111. The arc hole 1111 enables the upper and lower positions of the transmitting end component to be adjusted within a small range. It is known to those skilled in the art that the upper and lower positions of the transmitting end component usually do not need to be adjusted or the range to be adjusted is small, so the arc hole 1111 can meet the use requirements; in the case where the upper and lower positions of the transmitting end component need to be adjusted within a large range, at least one mounting hole of the transmitting end component on the transmitting end bracket 1 can be set as an elongated hole extending up and down.

[0059] Instead of the circular hole 1110 and the arc hole 1111 on the left side plate 111, or in addition thereto, any other position of the main body 11 may also be provided with a hole for mounting the transmitting end component. Figure 1e As shown, a group of spare circular holes 1131 and arc-shaped holes 1132 may also be provided on the top plate 113 of the main body 11 .

[0060] The transmitting end bracket 1 further includes two holes 13 passing through the main body 11, such as Figure 1c , 1d As shown, in this embodiment, the two holes 13 are respectively located on the left and right side plates 111 and 112 of the main body 11 and are aligned with each other. Figure 1a , 1b As shown, the nut 12 is fixed to the main body 11 at at least one of the holes 13 and is arranged concentrically with the hole 13. The nut 12 can be fixed to the inside or outside of the hole 13 by welding. The hole 13 and the nut 12 are used to allow the screw 32 of the adjustment support 3 to pass through, so that the launch end bracket 1 is assembled to the adjustment support 3, so that the launch end bracket 1 and the launch end components mounted thereon can be translated through the adjustment support 3, which will be described in detail below.

[0061] Preferably, the main body 11 also includes a long hole 1121 for wiring the transmitting end components. The long hole 1121 can be set on the side panels 111, 112 or the top panel 113 as needed. For example, in the embodiment in the figure, the long hole 1121 is set on the right side panel 112, opposite to the circular hole 1131 and the arc hole 1132.

[0062] The following references Figure 2a-2e The reflector end bracket 2 is described, wherein Figure 2a-2eThe three-dimensional view, front view, left view, right view and top view of the reflective end bracket 2 are shown respectively.

[0063] The reflective end bracket 2 is used to fix and position the reflective end component or reflective plate (not shown) of the through-beam type photoelectric sensor.

[0064] like Figure 2a-2e As shown, the reflective end bracket 2 includes a roughly L-shaped main body 21 and a rib 22 fixed on the main body, the rib 22 includes a hole 24, a nut 23 is fixed on at least one side of the hole 24, and is arranged concentrically with the hole 24, wherein the hole 24 and the nut 23 are used to allow the screw 32 of the adjustment support 3 to pass through, so that the reflective end bracket 2 is assembled to the adjustment support 3, so that the reflective end bracket 2 and the reflective end component mounted thereon can be translated through the adjustment support 3, which will be described in detail below.

[0065] The main body 21 includes at least one hole 211 for mounting a reflective end component.

[0066] Preferably, see Figure 2c , 2d The rib 22 includes a chamfer 221 to facilitate cooperation with the L-shaped main body 21 .

[0067] The following references Figure 3a-3f Description Adjustment support 3, wherein Figure 3a-3e The three-dimensional view, the front view, the left view and the top view of the main body 31 of the adjustment support 3 are shown respectively. Figure 3f The screw 32 of the adjustment support 3 is shown.

[0068] The adjusting support 3 is used to be assembled with the transmitting end bracket 1 and the reflecting end bracket 2 so that the transmitting end bracket 1 and the reflecting end bracket 2 can be translated.

[0069] like Figure 3a-3f As shown, the adjustment support 3 includes a main body 31, two holes 34 passing through the main body 31, and a screw 32 passing through the hole 34, wherein the width of the main body 31 is greater than the width of the transmitting end bracket 1 and greater than the width of the reflecting end bracket 2, so that the transmitting end bracket 1 and the reflecting end bracket 2 can move on the screw 32 of the adjustment support 3.

[0070] Preferably, the adjustment support 3 also includes at least one bearing 33, wherein the outer ring of the bearing 33 is fixed (for example, welded) on the main body 31 and is arranged concentrically with the hole 34, wherein the screw 32 is fixed on the inner ring of at least one bearing 33, and the bearing 33 can be arranged on the inner side or the outer side of the hole 34.

[0071] Preferably, the main body 31 is in a “[” shape, including a bottom plate 311 and two side plates 312 located on both sides of the bottom plate, wherein the hole 34 is located on the side plate 312 , and the bearing 33 is also fixed on the inner side or outer side of the side plate 312 .

[0072] Preferably, at least one bolt 35 is disposed on the outside of the bottom plate 311 of the main body 31 for mounting the adjustment support 3 .

[0073] For example, the screw 32 is fixed to the inner ring of the bearing 33 by spot welding. Figure 6 , wherein the screw rod 32 is fixed to the inner ring of the bearing 33 by two nuts 6 fastened on the screw rod 32 on both sides of the inner ring of the bearing 33. In this embodiment, the two nuts 6 are tightened relative to each other on the screw rod 32, thereby clamping the inner ring of the bearing 33 between them, so that the screw rod 32, the two nuts 6 and the inner ring of the bearing can rotate integrally under the support of the outer ring of the bearing fixed to the body 31. The hole 34' on the side plate 312 is large enough so as not to interfere with the rotation of the nut 6 located on the inner side of the bearing 33, and the diameter of the nut 6 is smaller than the inner diameter of the outer ring of the bearing 33, so the outer ring of the bearing 33 does not interfere with the rotation of the nut 6.

[0074] See also Figure 3f The screw 32 is a full-thread long screw, including a screw head 321.

[0075] The following references Figures 4a-4d The transmitter adjustment component 4 is described, wherein Figures 4a-4d The three-dimensional view, front view, left view and right view of the transmitting end adjustment component 4 are respectively shown.

[0076] The transmitting end bracket 1 and the adjusting support 3 are assembled together to form the transmitting end adjusting assembly 4, which is used to translate the transmitting end bracket 1 and the transmitting end component of the through-beam photoelectric sensor mounted thereon. Preferably, there is a gap between the lower surface of the bottom plate 114 of the main body 11 of the transmitting end bracket 1 and the upper surface of the bottom plate 311 of the main body 31 of the adjusting support 3, so as to facilitate the movement of the transmitting end bracket 1 on the adjusting support 3 along the screw rod 32.

[0077] When assembling the transmitter adjustment assembly 4, firstly, the transmitter bracket 1 is placed on the bottom plate 311 of the main body 31 of the adjustment support 3. Since the width of the adjustment support 3 is greater than that of the transmitter bracket 1, the side plates 111 and 112 of the transmitter bracket 1 are located between the side plates 312 of the main body 31 of the adjustment support 3. The two holes 13 of the transmitter bracket 1 are aligned with the two holes 34 of the adjustment support 3, and the screw rod 32 is passed through the holes 13 and 34, and thus through the nut 12 and the bearing 33 that are concentric with the corresponding holes. Finally, the screw rod 32 is fixed to the inner ring of the bearing 33 at least at one bearing 33, so that the screw rod 32 is supported on the main body 31 of the adjustment support 3 through the outer ring of the bearing fixed on the main body 31 of the adjustment support 3.

[0078] Therefore, when the screw head 321 of the screw 32 is rotated by a tool (such as a wrench), the screw 32 and the inner ring of the bearing 33 rotate under the support of the outer ring, and the nut fixed on the main body 11 of the transmitting end bracket 1 drives the transmitting end bracket 1 to translate along the screw 32, thereby adjusting the horizontal position of the transmitting end component of the through-beam photoelectric sensor installed on the transmitting end bracket 1.

[0079] The following references Figures 5a-5f The reflective end adjustment component 5 is described, wherein Figures 5a-5f The three-dimensional view, front view, left view, right view, rear view and top view of the reflection end adjustment component 5 are respectively shown.

[0080] The reflective end bracket 2 and the adjustment support 3 are assembled together to form the reflective end adjustment assembly 5, which is used to translate the reflective end bracket 2 and the reflective end component or reflective plate of the through-beam photoelectric sensor mounted thereon. Preferably, there is a gap between the bottom surface of the main body 21 of the reflective end bracket 2 and the upper surface of the bottom plate 311 of the main body 31 of the adjustment support 3, so as to facilitate the movement of the reflective end bracket 2 on the adjustment support 3 along the screw rod 32.

[0081] When assembling the reflection end adjustment assembly 5, firstly, the reflection end bracket 2 is placed on the bottom plate 311 of the main body 31 of the adjustment support 3. Since the width of the adjustment support 3 is greater than that of the reflection end bracket 2, the two sides of the L-shaped main body 21 of the reflection end bracket 2 are located between the side plates 312 of the main body 31 of the adjustment support 3. Then, the hole 24 on the rib plate 22 of the reflection end bracket 2 is aligned with the two holes 34 of the adjustment support 3, and the screw rod 32 is passed through the holes 24, 34, and thus through the nut 23 and the bearing 33 concentric with the corresponding holes. Finally, the screw rod 32 is fixed to the inner ring of the bearing 33 at least at one bearing 33, so that the screw rod 32 is supported on the main body 31 of the adjustment support 3 through the outer ring of the bearing fixed on the main body 31 of the adjustment support 3.

[0082] Therefore, when the screw head 321 of the screw 32 is rotated by a tool (such as a wrench), the screw 32 and the inner ring of the bearing 33 rotate under the support of the outer ring, and the nut 23 fixed on the rib 22 of the reflection end bracket 2 drives the reflection end bracket 2 to translate along the screw 32, thereby adjusting the horizontal position of the reflection plate of the through-beam photoelectric sensor installed on the reflection end bracket 2.

[0083] In order to more accurately adjust the position of the transmitter bracket 1 or the reflector bracket 2 relative to the adjustment support 3, the size of the bottom plate 311 of the adjustment support 3 can be set to be larger than the size of the corresponding transmitter bracket 1 or the reflector bracket 2, and scales are marked on the bottom plate 311 of the adjustment support 3, and indicator marks are made on the corresponding parts of the transmitter bracket 1 or the reflector bracket 2. Referring to FIG7, another embodiment of the transmitter adjustment component 4 is shown, wherein the bottom plate 311 of the adjustment support 3 is marked with scale lines 36, and the bottom plate 114 of the main body 11 of the transmitter bracket 1 includes an indicator mark 14. It is conceivable that the reflector adjustment component 5 may also include scale lines and indicator marks. Therefore, when it is necessary to translate the transmitting end component and the reflecting end component of the photoelectric sensor as a whole (for example, due to changes in the production line speed), the transmitting end adjustment component 4 is adjusted first. For example, the indicator mark 14 indicates that the transmitter bracket 1 is translated 5 centimeters to the left or right. Then, the scale and indicator mark of the reflecting end adjustment component can be used to make the reflecting end bracket translate the same or similar distance, so that precise adjustment can be performed.

[0084] As described above, the above embodiments are described by taking a reflective through-beam photoelectric sensor as an example, wherein the transmitting end component includes a photoelectric transmitter and a receiver. For a through-beam photoelectric sensor including a transmitter and a receiver, that is, the transmitter and the receiver are separated, the receiver can be mounted on the reflector bracket in the above embodiments, which is also included in the scope of the present application.

[0085] The position adjustment device for the through-beam photoelectric sensor according to the present application has a simple structure and is easy to operate. It can quickly adjust the position of the through-beam photoelectric sensor and is made using screws, nuts, bearings, stainless steel plates and other waste materials on site in the workshop. At the same time, scale lines are drawn on the position adjustment device, so that the displacement of the photoelectric sensor component can be accurately adjusted by rotating the screw.

[0086] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0087] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A position adjustment device for a through-beam photoelectric sensor, comprising a first bracket assembly and a second bracket assembly, wherein: The first bracket assembly is used to adjust the position of the transmitting end component of the through-beam photoelectric sensor, and includes a first bracket and a first adjustment support. The transmitting end component is mounted on the first bracket. The first bracket includes a first assembly hole and a first nut fixed on the first bracket and aligned with the first assembly hole. The second bracket assembly is used to adjust the position of the reflective end component or the receiving end component of the through-beam photoelectric sensor, and includes a second bracket and a second adjustment support. The reflective end component or the receiving end component is mounted on the second bracket. The second bracket includes a second assembly hole and a second nut fixed on the second bracket and aligned with the second assembly hole. Characterized in that the first adjustment support and the second adjustment support each include: an adjusting support body, the adjusting support body comprising two third assembly holes, the third assembly holes being capable of being aligned with the first assembly holes when the first bracket assembly is assembled, and the third assembly holes being capable of being aligned with the second assembly holes when the second bracket assembly is assembled; and a screw rod passing through the third assembly hole, and when the first bracket assembly and the second bracket assembly are assembled respectively, the screw rod can pass through the first assembly hole, the first nut and the second assembly hole, and the second nut respectively; The first bracket assembly and the second bracket assembly are configured such that when the screw rod rotates, the first bracket or the second bracket can move on the screw rod along the length direction of the screw rod.

2. The position adjustment device for a through-beam photoelectric sensor according to claim 1, characterized in that: The first adjustment support and the second adjustment support each include at least one bearing, wherein the outer ring of the bearing is fixed on the adjustment support body and is arranged concentrically with the third assembly hole, wherein the screw passes through the bearing and is fixed on the inner ring of at least one bearing, and the bearing is arranged on the inner side or the outer side of the third assembly hole.

3. The position adjustment device for a through-beam photoelectric sensor according to claim 1, characterized in that: The main body of the adjustment support is in a "[" shape, including an adjustment support base plate and two adjustment support side plates located on both sides of the adjustment support base plate, wherein the third assembly hole is located on each of the adjustment support side plates.

4. The position adjustment device for a through-beam photoelectric sensor according to claim 2, characterized in that: The screw is fixed to the inner ring of the bearing by spot welding, or, The screw is fixed to the inner ring of the bearing through two third nuts, and the two third nuts are connected to the screw and fastened to both sides of the inner ring of the corresponding bearing, wherein the outer diameter of the third nut is smaller than the diameter of the third assembly hole and smaller than the inner diameter of the outer ring of the bearing.

5. The position adjustment device for a through-beam photoelectric sensor according to claim 3, characterized in that: At least one bolt is arranged on the outer side of the adjusting support bottom plate of the adjusting support body.

6. The position adjustment device for a through-beam photoelectric sensor according to any one of claims 1 to 4, characterized in that: The screw is a full-thread long screw, including a screw head.

7. The position adjustment device for a through-beam photoelectric sensor according to any one of claims 1 to 4, characterized in that: The first bracket includes a first main body in the shape of a rectangular frame, the first main body includes a first side plate, a first top plate and a first bottom plate, any one or more of the first side plate and the first top plate include a launching end component mounting hole, two first assembly holes are respectively located on the two first side plates and are aligned with each other, and the first nut is fixed to the first main body at at least one of the first assembly holes.

8. The position adjustment device for a through-beam photoelectric sensor according to claim 7, characterized in that: The first body is formed of a steel plate, and the mounting hole of the transmitting end component includes a circular hole and an arc-shaped hole, wherein the arc-shaped hole is concentric with the circular hole.

9. The position adjustment device for a through-beam photoelectric sensor according to claim 7, characterized in that: The first body further includes a long hole.

10. The position adjustment device for a through-beam photoelectric sensor according to any one of claims 1 to 4, characterized in that: The second bracket includes an L-shaped second body and a rib fixed on the second body, the rib includes the second assembly hole, the second nut is fixed on at least one side of the second assembly hole, and the second body includes at least one reflective end component mounting hole.

11. The position adjustment device for a through-beam photoelectric sensor according to claim 10, characterized in that: The rib includes a chamfer.

12. The position adjustment device for a through-beam photoelectric sensor according to any one of claims 1 to 4, characterized in that: The adjustment support bodies of the first adjustment support and the second adjustment support both include a scale, and the first support and the second support respectively include a mark capable of indicating the scale of the scale.

13. The position adjustment device for a through-beam photoelectric sensor according to any one of claims 1 to 4, characterized in that: There is a gap between the bottom surface of the first bracket and the upper surface of the first adjustment support, and / or there is a gap between the bottom surface of the second bracket and the upper surface of the second adjustment support.

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