Position-adjustable sensor mounting device

Abstract

The utility model relates to a position-adjustable sensor mounting device which comprises a base, a sensor support and a lifting assembly, a plurality of sliding grooves which are arranged in a staggered mode are formed in the sensor support, a plurality of placing grooves are formed in the sensor support in a longitude and latitude staggered mode, and a sensor mounting hole is formed in the intersection point of every two placing grooves. A sensor mounting hole is formed in the base, a positioning hole is formed below the sensor mounting hole, a fixing plate is arranged below the sensor support, adjusting holes corresponding to the positioning hole are evenly distributed in the fixing plate, and the lifting assembly is arranged on the base through a supporting frame. According to the utility model, a plurality of sensor mounting holes are formed in the sensor bracket, so that the mounting position of the sensor can be flexibly adjusted according to conditions; meanwhile, an adjusting piece is arranged at the bottom of the fixing plate, the position of the sensor can be adjusted by rotating the adjusting piece, and therefore the sensor is tightly attached to the printing substrate; in addition, through gear meshing and lead screw nut transmission in the lifting assembly, lifting of the sensor support in the vertical direction can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of additive manufacturing, and in particular to a sensor installation device with adjustable position. Background Art

[0002] Metal additive manufacturing technology is one of the advanced manufacturing technologies that has been developed in recent years through the integration of information technology, new material technology, and manufacturing technology. However, due to the poor stability of product quality and low process repeatability, the consistency of the quality, dimensional accuracy, and comprehensive performance of its printed products cannot meet the requirements for application in professional engineering fields. Therefore, it is crucial to monitor the process characteristics of metal additive manufacturing online and study the relationship between part defects and process characteristic information. Acoustic emission signals have the advantages of high sensitivity, rich information, and wide applicability, and are important characteristic signals for monitoring the metal additive manufacturing process.

[0003] At present, there are many mature methods to use acoustic emission signals to monitor the metal additive manufacturing process. However, the collection of acoustic emission signals is still a difficult problem. In the direct laser deposition additive manufacturing process, the temperature in the center of the printing area is as high as 1000°C. In order to collect effective acoustic emission signals, a high-temperature acoustic emission sensor must be used. Because the volume and weight of the high-temperature acoustic emission sensor are larger than those of ordinary acoustic emission sensors, and the signal line of the high-temperature acoustic emission sensor is protected by a high-temperature resistant metal shell and is difficult to bend. Due to the above factors, the high-temperature acoustic emission sensor is difficult to fix using the fixing method of the normal temperature acoustic emission sensor. And because different additive manufacturing printing equipment requires different printing heights, there is currently no sensor mounting device that can adapt to different printing equipment. Utility Model Content

[0004] In response to the problems existing in the prior art, the utility model can drive the driving gear and the driven gear to engage and transmit by shaking the rocker, and then drive the driven gear and the lifting screw to be threadedly connected, so as to realize the lifting and lowering movement of the sensor bracket in the vertical direction, thereby providing a sensor installation device with adjustable position to solve the problems existing in the prior art.

[0005] The technical solution adopted by the utility model is a sensor installation device with adjustable position, which includes a base, a sensor bracket and a lifting component for adjusting the height of the sensor bracket, the sensor bracket is provided with a plurality of staggered slide grooves for moving the printing substrate, and the plurality of slide grooves divide the top of the sensor bracket into a plurality of sensor installation areas, each sensor installation area is staggered with a plurality of placement grooves for accommodating sensor signal lines in longitude and latitude, and a sensor installation hole is provided at the intersection of every two placement grooves, a positioning hole is provided below the sensor installation hole, and a fixing plate is provided below the sensor bracket, and adjustment holes corresponding to the positioning holes are evenly distributed on the fixing plate, and the corners at the bottom of the fixing plate are evenly A lifting guide column is provided, and the lifting guide column is slidably arranged in a guide sleeve on the base; the lifting assembly is arranged on the base through a support frame, and the lifting assembly includes a support frame, a lifting screw, a driven gear, a driving gear, a transmission shaft and a rocker, the driven gear support is arranged at the upper end of the lifting sleeve in the base, and an internal thread is arranged on the through hole in the middle of the driven gear, the upper end of the lifting screw is connected to the bottom of the fixed plate, and the lower end of the lifting screw is connected to the through hole threadedly in the middle of the driven gear, the support frame is arranged on the base, and the transmission shaft support is arranged on the support frame, and one end of the transmission shaft is connected to the rocker through a coupling, and driving gears are arranged at both ends of the transmission shaft, and the driving gear is meshed and transmitted with the driven gear.

[0006] Furthermore, a plurality of placement grooves divide the sensor installation area into a plurality of support blocks, the edge of each support block is provided with an arc surface adapted to the outer arc surface of the sensor, and the arc radius of the arc surface at the edge of each support block is equal to the radius of the sensor.

[0007] Furthermore, guide sleeves are provided at the corners of the base, and lifting sleeves are provided at both ends of the middle of the base.

[0008] Preferably, scale lines for measuring the position of the sensor bracket are evenly distributed on the outer arc surface of the guide column.

[0009] Furthermore, a pressing plate for fixing the printed substrate is provided above the sensor bracket, a connecting piece is provided on the pressing plate, and one end of the connecting piece passes through the positioning hole and is connected to the adjusting hole on the fixing plate.

[0010] Preferably, the central axis of the sensor mounting hole coincides with the central axis of the positioning hole, the central axis of the positioning hole coincides with the central axis of the adjustment hole, and the aperture of the positioning hole is larger than the aperture of the adjustment hole.

[0011] Preferably, an adjusting piece is also provided at the bottom of the fixing plate, and the adjusting piece is threadedly connected to the adjusting hole. One end of the adjusting piece passes through the adjusting hole and the positioning hole and contacts the bottom of the sensor. The height of the sensor in the sensor bracket can be adjusted by adjusting the position of the adjusting piece.

[0012] The characteristics and beneficial effects of the utility model are:

[0013] 1. The utility model provides a sensor installation device with adjustable position. A staggered slide groove is arranged on the sensor bracket. A printing substrate with a slider is placed in the slide groove, which can realize flexible movement of the printing substrate in both horizontal and vertical directions.

[0014] 2. The utility model provides a sensor installation device with adjustable position. A plurality of placement grooves are staggered on the sensor bracket. The placement grooves can accommodate the metal signal wires on the acoustic emission sensor that are difficult to bend. At the same time, a sensor installation hole is provided at the intersection of every two placement grooves. The installation position of the acoustic emission sensor can be flexibly adjusted according to actual conditions to adapt to different usage environments.

[0015] 3. The utility model provides a sensor installation device with adjustable position, a positioning hole is provided at the bottom of the sensor installation hole, and a fixing plate is provided at the bottom of the sensor bracket, and adjustment holes corresponding to the positioning holes are evenly distributed on the fixing plate, and connecting pieces are provided at both ends of the pressure plate. The fixing of the printed substrate can be achieved through the threaded connection between the connecting pieces and the adjustment holes.

[0016] 4. The utility model provides a sensor mounting device with adjustable position. An adjusting piece is arranged at the bottom of the fixed plate, and the adjusting piece is threadedly connected to the adjusting hole. By adjusting the position of the adjusting piece, the acoustic emission sensor can be lifted up from the sensor mounting hole, so that the acoustic emission sensor is closely fitted to the printed substrate.

[0017] 5. The utility model provides a sensor installation device with adjustable position. By setting a lifting component on the base and shaking the rocker in the lifting component, the lifting movement of the sensor bracket in the vertical direction can be realized through gear meshing transmission and lead screw nut transmission. It has the advantages of simple structure, strong practicality, wide application range, and strong operability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the overall structure of the sensor bracket of the utility model;

[0020] Figure 3 This utility model Figure 2 A partial enlarged schematic diagram of the structure at A in the middle;

[0021] Figure 4 It is a top view of the sensor bracket of the utility model;

[0022] Figure 5It is a bottom view of the sensor bracket of the utility model;

[0023] Figure 6 It is a schematic diagram of installing a sensor and a printed substrate on a sensor bracket of the utility model.

[0024] Main reference numerals:

[0025] Base 1; guide sleeve 11; lifting sleeve 12; sensor bracket 2; slide groove 21; sensor installation area 22; placement groove 23; sensor installation hole 24; positioning hole 25; fixing plate 26; adjustment hole 27; lifting guide column 28; support block 29; lifting assembly 3; support frame 31; lifting screw 32; driven gear 33; driving gear 34; transmission shaft 35; rocker 36; printing substrate 4; sensor 5; pressure plate 6; connecting piece 7. DETAILED DESCRIPTION

[0026] In order to fully describe the technical content, structural features, objectives and effects of the present invention, the following will be described in detail with reference to the accompanying drawings.

[0027] The utility model provides a sensor installation device with adjustable position, such as Figure 1 As shown, it includes a base 1, a sensor bracket 2 and a lifting component 3 for adjusting the height of the sensor bracket 2.

[0028] like Figure 1 As shown, guide sleeves 11 are provided at the corners of the base 1 , and lifting sleeves 12 are provided at both ends of the middle of the base 1 .

[0029] like Figure 2 and Figure 3 As shown, the sensor bracket 2 is provided with a plurality of staggered slide grooves 21 for moving the printed substrate 4, on which the printed substrate 4 provided with a slider can be placed to achieve flexible movement in both the horizontal and vertical directions, and the plurality of slide grooves 21 divide the top 2 of the sensor bracket into a plurality of sensor mounting areas 22, each sensor mounting area 22 is staggered with a plurality of placement grooves 23 for accommodating sensor signal lines in longitude and latitude, and a sensor mounting hole 24 is provided at the intersection of every two placement grooves 23, a positioning hole 25 is provided below the sensor mounting hole 24, and a fixing plate 26 is provided below the sensor bracket 2, and adjustment holes 27 corresponding to the positioning holes 25 are evenly distributed on the fixing plate 26, and lifting guide columns 28 are provided at the corners of the bottom of the fixing plate 26, and the lifting guide columns 28 are slidably arranged in the guide sleeve 11 on the base 1.

[0030] Specifically, scale lines for measuring the position of the sensor bracket 2 are evenly distributed on the outer arc surface of the guide column.

[0031] like Figure 1As shown, the lifting assembly 3 is arranged on the base 1 through a support frame 31, and the lifting assembly 3 includes a support frame 31, a lifting screw 32, a driven gear 33, a driving gear 34, a transmission shaft 35 and a rocker 36. The driven gear 33 is supported on the upper end of the lifting sleeve 12 in the base 1, and the through hole in the middle of the driven gear 33 is provided with an internal thread. The upper end of the lifting screw 32 is connected to the bottom of the fixing plate 27, and the lower end of the lifting screw 32 is threadedly connected to the through hole in the middle of the driven gear 33. The support frame 31 is arranged on the base 1, and the transmission shaft 35 is supported on the support frame 31, and one end of the transmission shaft 35 is connected to the rocker 36 through a coupling, and both ends of the transmission shaft 35 are provided with a driving gear 34, and the driving gear 34 is meshed with the driven gear 33 for transmission. By shaking the rocker 36, the driving gear 34 can be driven to mesh with the driven gear 33 for transmission, and then the driven gear 33 can be driven to be threadedly connected with the lifting screw 32 to realize the lifting movement of the sensor bracket 2 in the vertical direction.

[0032] like Figure 3 and Figure 4 As shown, a plurality of placement grooves 23 separate the sensor installation area 22 into a plurality of support blocks 29 , and the edge of each support block 29 is provided with an arc surface adapted to the outer arc surface of the sensor 5 , and the arc radius of the arc surface at the edge of each support block 29 is equal to the radius of the sensor 5 .

[0033] like Figure 4 and Figure 5 As shown, the central axis of the sensor mounting hole 24 coincides with the central axis of the positioning hole 25 , the central axis of the positioning hole 25 coincides with the central axis of the adjustment hole 27 , and the aperture of the positioning hole 25 is larger than the aperture of the adjustment hole 27 .

[0034] like Figure 6 As shown, a pressing plate 6 for fixing the printed substrate 4 is also provided above the sensor bracket 2 , a connecting member 7 is provided on the pressing plate 6 , and one end of the connecting member 7 passes through the positioning hole 25 and is connected to the adjustment hole 27 on the fixing plate 26 .

[0035] like Figure 6 As shown, an adjusting piece is also provided at the bottom of the fixing plate 26, and the adjusting piece is threadedly connected to the adjusting hole 27. One end of the adjusting piece passes through the adjusting hole 27 and the positioning hole 25 and contacts the bottom of the sensor. The height of the sensor in the sensor bracket 2 can be adjusted by adjusting the position of the adjusting piece.

[0036] The specific operation steps of the utility model are as follows:

[0037] The utility model provides a sensor installation device with adjustable position, such as Figure 1 to Figure 6As shown, it includes a base 1, a sensor bracket 2 and a lifting assembly 3 for adjusting the height of the sensor bracket 2. The specific steps of using the sensor bracket of the utility model to perform acoustic emission monitoring on metal additive manufacturing are:

[0038] (1) First, the sensor bracket is placed inside the metal additive manufacturing printing box, the high-temperature acoustic emission sensor 5 is placed in the sensor mounting hole 24 in the sensor bracket 2, and the metal signal line of the sensor is placed in the placement groove 23. At the same time, the lead-out signal line is connected to the external signal processing device to complete the installation of the acoustic emission sensor.

[0039] (2) Place the printed substrate 4 on the sensor bracket 2 and ensure that the printing center position is as far away from the sensor installation position as possible. Use the connecting piece 7 to press the fixing plate 26 onto the printed substrate 4 to fix the position of the printed substrate 4. At the same time, an adjusting piece is provided under the fixing plate 26. The adjusting piece is threadedly connected to the adjusting hole 27. By rotating the adjusting piece, the height of the high-temperature acoustic emission sensor 5 in the sensor bracket 2 can be adjusted so that the high-temperature acoustic emission sensor 5 fits tightly to the printed substrate 4.

[0040] (3) By shaking the rocker 36 in the lifting assembly 3, the height of the sensor bracket 2 is adjusted through gear meshing transmission and screw nut transmission, so that the printing substrate 4 is within the height range within which the metal additive manufacturing equipment can operate.

[0041] (4) Start the metal additive manufacturing printing process and record the acoustic emission signal during the printing process.

[0042] (5) Adjust the installation position of the high-temperature acoustic emission sensor 5 so that it is as close to the printing center as possible within the temperature range to obtain a clearer signal. Repeat the above process until the obtained acoustic emission signal meets the requirements.

[0043] The utility model is provided with staggered slide grooves on the sensor bracket, and the printed substrate provided with a slider is placed in the slide groove, so that the printed substrate can be flexibly moved in both the horizontal and vertical directions. Secondly, a plurality of placement grooves are staggered in longitude and latitude on the sensor bracket, and the placement grooves can accommodate the metal signal lines that are difficult to bend on the acoustic emission sensor. At the same time, a sensor mounting hole is provided at the intersection of every two placement grooves, and the installation position of the acoustic emission sensor can be flexibly adjusted according to actual conditions to adapt to different use environments. At the same time, a positioning hole is provided at the bottom of the sensor mounting hole, and a fixing plate is provided at the bottom of the sensor bracket, and adjustment holes corresponding to the positioning holes are evenly distributed on the fixing plate. Connectors are provided at both ends of the pressure plate, and the fixing of the printed substrate can be achieved by threading the connecting member with the adjustment hole. In addition, an adjusting member is provided at the bottom of the fixing plate, and the adjusting member is threadedly connected to the adjustment hole. By adjusting the position of the adjusting member, the acoustic emission sensor can be lifted up from the sensor mounting hole, so that the acoustic emission sensor fits tightly with the printed substrate. Finally, by setting a lifting component on the base and shaking the rocker in the lifting component, the lifting movement of the sensor bracket in the vertical direction can be achieved through gear meshing transmission and lead screw nut transmission, which has the advantage of adjustable installation.

[0044] The above embodiments are only descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A sensor installation device with adjustable position, characterized in that: It includes a base, a sensor bracket and a lifting component for adjusting the height of the sensor bracket. The sensor bracket is provided with a plurality of staggered slide grooves for moving the printing substrate, and the plurality of slide grooves divide the top of the sensor bracket into a plurality of sensor installation areas, each sensor installation area is staggered with a plurality of placement grooves for accommodating sensor signal lines in longitude and latitude, and a sensor installation hole is provided at the intersection of every two placement grooves, and a positioning hole is provided below the sensor installation hole, and a fixing plate is provided below the sensor bracket, and adjustment holes corresponding to the positioning holes are evenly distributed on the fixing plate, and lifting guide columns are provided at the corners of the bottom of the fixing plate, and the lifting guide columns are slidably arranged in the guide sleeves on the base; The lifting assembly is mounted on the base through a support frame, and the lifting assembly includes a support frame, a lifting screw, a driven gear, a driving gear, a transmission shaft and a rocker. The driven gear is arranged at the upper end of the lifting sleeve in the base, and an internal thread is provided on the through hole in the middle of the driven gear. The upper end of the lifting screw is connected to the bottom of the fixed plate, and the lower end of the lifting screw is connected to the through hole in the middle of the driven gear by threaded transmission. The support frame is mounted on the base, and the transmission shaft support is mounted on the support frame, and one end of the transmission shaft is connected to the rocker through a coupling, and driving gears are provided at both ends of the transmission shaft, and the driving gear is meshed and transmitted with the driven gear.

2. The position-adjustable sensor mounting device according to claim 1, characterized in that: The sensor installation area is divided into a plurality of support blocks by a plurality of placement grooves. The edge of each support block is provided with an arc surface adapted to the outer arc surface of the sensor, and the arc radius of the arc surface at the edge of each support block is equal to the radius of the sensor.

3. The position-adjustable sensor mounting device according to claim 1, characterized in that: Guide sleeves are arranged at the corners of the base, and lifting sleeves are arranged at both ends of the middle of the base.

4. The position-adjustable sensor mounting device according to claim 3, characterized in that: Scale lines for measuring the position of the sensor bracket are evenly distributed on the outer arc surface of the guide column.

5. The position-adjustable sensor mounting device according to claim 1, characterized in that: A pressing plate for fixing the printing substrate is also provided above the sensor bracket, a connecting piece is provided on the pressing plate, and one end of the connecting piece passes through the positioning hole and is connected with the adjusting hole on the fixing plate.

6. The position-adjustable sensor mounting device according to claim 5, characterized in that: The central axis of the sensor installation hole coincides with the central axis of the positioning hole, the central axis of the positioning hole coincides with the central axis of the adjustment hole, and the aperture of the positioning hole is larger than the aperture of the adjustment hole.

7. The position-adjustable sensor mounting device according to claim 6, characterized in that: An adjusting piece is also provided at the bottom of the fixing plate, and the adjusting piece is threadedly connected to the adjusting hole. One end of the adjusting piece passes through the adjusting hole and the positioning hole and contacts the bottom of the sensor. The height of the sensor in the sensor bracket can be adjusted by adjusting the position of the adjusting piece.

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