CN112326212A - Base and nozzle blowing waveform testing device - Google Patents
Base and nozzle blowing waveform testing device Download PDFInfo
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- CN112326212A CN112326212A CN201910700980.9A CN201910700980A CN112326212A CN 112326212 A CN112326212 A CN 112326212A CN 201910700980 A CN201910700980 A CN 201910700980A CN 112326212 A CN112326212 A CN 112326212A
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- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
本发明提供基座以及喷嘴吹气波形测试装置。基座用于测试喷嘴集成的喷嘴口的吹气波形，喷嘴集成设置有喷嘴口排，喷嘴口排具有等间距排列的多个喷嘴口，多个喷嘴口在形状和尺寸相同且沿排列方向对齐，基座包括主体以及两个定位爪，主体设置有第一通孔，第一通孔沿主体的前后方向贯通主体，第一通孔用于收容定位在第一通孔中且与对应的一个喷嘴口对中的检测吹气波形的传感器，两个定位爪对称位于主体的第一通孔的左右方向的两侧，各定位爪用于与第一通孔对中的喷嘴口相邻的喷嘴口过盈配合。喷嘴吹气波形测试装置包括前述基座以及传感器。由此，能保证全部喷嘴口的被传感器检测的位置处于同一直线上，进而保证传感器的检测结果的可靠性和精度。
The invention provides a base and a nozzle blowing waveform testing device. The base is used to test the blowing waveform of the nozzle integrated nozzle. The nozzle integrated is provided with a nozzle orifice row. The nozzle orifice row has multiple nozzle openings arranged at equal intervals, and the multiple nozzle openings are the same in shape and size and aligned along the arrangement direction. , the base includes a main body and two positioning claws, the main body is provided with a first through hole, the first through hole penetrates the main body along the front and rear directions of the main body, and the first through hole is used for receiving and positioning in the first through hole and corresponding to the one The sensor for detecting the blowing waveform in the center of the nozzle opening, two positioning claws are symmetrically located on both sides of the left and right directions of the first through hole of the main body, and each positioning claw is used for the nozzle adjacent to the nozzle opening in the first through hole pair. Mouth interference fit. The nozzle blowing waveform testing device includes the aforementioned base and a sensor. In this way, it can be ensured that the positions detected by the sensors of all the nozzle openings are on the same straight line, thereby ensuring the reliability and accuracy of the detection results of the sensors.
Description
Technical Field
The invention relates to a blowing detection technology, in particular to a base and a nozzle blowing waveform testing device.
Background
In the field of color sorters, a plurality of nozzle openings integrated by nozzles blow air to change the running track of materials to be selected, thereby realizing the sorting of the materials.
In the prior art, a nozzle is integrated and fixed, a sensor is mounted on a three-dimensional moving fine-tuning test bench, and then the sensor is moved by the three-dimensional moving fine-tuning test bench to automatically position and test each nozzle opening integrated by the nozzle. Because the nozzle integration is longer, the range (namely stroke) of the three-dimensional moving fine-tuning test bench is limited, when the whole nozzle integration is subjected to blowing waveform test, the nozzle integration is fixed through manual disassembly and assembly for many times, and further XYZ three-axis adjustment is required for many times, so that the center of a corresponding nozzle opening of the nozzle integration is aligned with a sensor, the operation is complicated, the test position of the fixed nozzle integration after disassembly and assembly at each time cannot be ensured to be the center (namely alignment) position of the nozzle opening, the test error is caused, and the final performance evaluation of the nozzle integration is influenced.
In addition, the design of the three-dimensional moving fine-tuning test bench is complex and high in cost.
Disclosure of Invention
In view of the problems in the background art, it is an object of the present invention to provide a base and a nozzle blowing waveform testing apparatus, which can ensure that the positions of all nozzle openings detected by sensors are on the same line, thereby ensuring the reliability and accuracy of the detection result of the sensors.
Another object of the present invention is to provide a base and a nozzle blowing waveform testing apparatus, which are simple in structure and convenient to operate compared with the three-dimensional moving fine-tuning testing table of the background art.
In order to achieve the above object, in a first aspect of the present invention, the present invention provides a base for testing a blowing waveform of a nozzle opening of a nozzle assembly, the nozzle assembly is provided with a nozzle opening row, the nozzle opening row has a plurality of nozzle openings arranged at equal intervals, the plurality of nozzle openings are identical in shape and size and aligned in an arrangement direction, the base includes a main body and two positioning claws, the main body is provided with a first through hole, the first through hole penetrates through the main body in a front-rear direction of the main body, the first through hole is used for accommodating a sensor for detecting a blowing waveform positioned in the first through hole and aligned with a corresponding one of the nozzle openings, the two positioning claws are symmetrically positioned at two sides of the main body in a left-right direction of the first through hole, and each positioning claw is used for interference fit with a nozzle opening adjacent to the nozzle opening in the first through hole.
In one embodiment, each positioning pawl comprises an insertion portion for insertion with interference into a corresponding nozzle opening of the nozzle assembly, and a flange located between the insertion portion and the body, the flange projecting radially outwards with respect to the insertion portion, the flange being intended to stop against an outer peripheral wall of the corresponding nozzle opening.
In one embodiment, the up-down direction symmetrical surfaces of the two positioning claws are coplanar, the left-right direction symmetrical surfaces of the two positioning claws are parallel to the left-right direction symmetrical surface of the first through hole, and the distance between the left-right direction symmetrical surface of each positioning claw and the left-right direction symmetrical surface of the first through hole is set to be equal to the distance between the left-right direction symmetrical surfaces of the adjacent two nozzle openings of the nozzle assembly.
In one embodiment, the up-down symmetrical surfaces of the two positioning claws are coplanar with the up-down symmetrical surface of the first through hole.
In one embodiment, the first through hole is circular, and the lowest position of the first through hole in the up-down direction is set such that the up-down direction center plane of the sensor positioned in the first through hole is coplanar with the up-down direction symmetry planes of the two positioning claws.
In one embodiment, the distance between the inner side surface of the insertion portion of each positioning claw and the left-right direction symmetrical surface of the first through hole is set to be larger than the distance between the left-right direction symmetrical surface of the leftmost nozzle opening of the nozzle assembly and the left edge of the nozzle assembly; the distance between the inner side surface of the insertion portion of each positioning claw and the left-right direction symmetric surface of the first through hole is set to be larger than the distance between the left-right direction symmetric surface of the rightmost nozzle opening of the nozzle assembly and the right edge of the nozzle assembly.
In one embodiment, the first through hole is used for receiving a sensor for detecting the blowing waveform in a clearance fit manner; the main part still is provided with the second through-hole, and the second through-hole extends to first through-hole from one side of the upper and lower direction of main part along upper and lower direction, second through-hole and first through-hole intercommunication, and the base still includes the mounting, and the mounting can pass the second through-hole, and the mounting is arranged in fixing the sensor that first through-hole acceptd in first through-hole.
In one embodiment, the fixing member is a bolt, and the second through hole is a threaded hole.
In one embodiment, the main body is further provided with a mounting hole; the base further comprises a first plate, a guide post and a spring; the first plate has a through hole aligned with the mounting hole in an up-down direction, a fixing member is fixed to a side of the first plate facing the first through hole, the guide post has a cap portion and a rod portion, the rod portion of the guide post passes through the through hole of the first plate and is fixed in the mounting hole of the main body, and the spring is mounted between an upper surface of the first plate and the cap portion of the guide post.
In one embodiment, the lower end of the fixing piece is an upward concave cambered surface which is used for complementing the outer peripheral surface of the sensor.
In order to achieve the above object, in a second aspect of the present invention, there is provided a nozzle blowing waveform testing apparatus comprising the base according to the first aspect of the present invention and a sensor for being received and positioned in the first through hole and being aligned with a corresponding one of the nozzle openings.
The invention has the following beneficial effects: according to the invention, the two positioning claws are symmetrically positioned at the two sides of the left and right direction of the first through hole of the main body, and each positioning claw is used for being in interference fit with the nozzle opening adjacent to the nozzle opening aligned with the first through hole, so that the alignment of the sensor positioned in the first through hole and the corresponding nozzle opening can be ensured, the positions of all the nozzle openings detected by the sensors are ensured to be on the same straight line, and the reliability and the precision of the detection result of the sensor are further ensured. In addition, compared with the three-dimensional moving fine-tuning test bench in the background art, the base is simple in structure and convenient to operate. In addition, compared with the detection process of the background art, the nozzle integration does not need to adopt a fixed mode, so that the cost is reduced.
Drawings
Fig. 1 is a perspective view of an embodiment of a nozzle assembly according to the present invention.
FIG. 2 is a perspective view of a first embodiment of a base of a nozzle blowing waveform testing apparatus in accordance with the present invention.
Fig. 3 is a front view of the fixture of the base of fig. 2.
Fig. 4 is a perspective view of the integrated mounting of the base and nozzle of fig. 2.
Fig. 5 is a perspective view of a second embodiment of a base according to the present invention.
Fig. 6 is a front view of the base of fig. 5.
Fig. 7 is a perspective view of a portion of the components of the base of fig. 5.
Fig. 8 is a perspective view of fig. 7.
Fig. 9 is a perspective view of the integrated mounting of the base and nozzle of fig. 5.
Wherein the reference numerals are as follows:
1 base 141 perforation
D1 front-back direction 142 upper surface
D2 up-down 15 guide post
D3 left and right direction 151 cap
11 body 152 rod
111 first through hole 16 spring
111b vertical symmetry plane 17 second plate
Distance between left and right symmetry planes d1 of 111c
Distance d4 from lowest position of P1
112 second through-hole 2 nozzle integration
113 mounting holes 21 nozzle orifice row
114 top surface 211 nozzle orifice
12 positioning claw 211c left-right direction symmetrical plane
121 insert 211w outer peripheral wall
121a front end 22 top surface
122 right edge of flange 24
12b vertical symmetry plane d2
12c left-right direction symmetry plane d3
13 d5 spacing of fasteners
131 arc surface 3 sensor
14 first board M nozzle waveform testing arrangement that blows
Detailed Description
The accompanying drawings illustrate embodiments of the present invention and it is to be understood that the disclosed embodiments are merely exemplary of the invention, which can be embodied in various forms, and therefore, specific details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention.
Further, expressions of directions indicated for explaining operations and configurations of respective members in the embodiment, such as upper, lower, left, right, front, and rear, are not absolute but relative, and although these indications are appropriate when the respective members are in the positions shown in the drawings, when the positions are changed, the directions should be interpreted differently to correspond to the changes.
Fig. 1 is a perspective view of an embodiment of a nozzle assembly 2 according to the present invention. Fig. 2 is a perspective view of a first embodiment of a base 1 of a nozzle blowing waveform testing apparatus M according to the present invention. Fig. 3 is a front view of the fixing member 13 of the base 1 of fig. 2. Fig. 4 is a perspective view of the mounting of the base 1 and the nozzle assembly 2 of fig. 2. Fig. 5 is a perspective view of a second embodiment of the base 1 according to the invention. Fig. 6 is a front view of the base 1 of fig. 5. Fig. 7 is a perspective view of a part of the components of the base 1 of fig. 5. Fig. 8 is a perspective view of fig. 7. Fig. 9 is a perspective view of the mounting of the base 1 and the nozzle assembly 2 of fig. 5.
The nozzle blowing waveform test device M includes a base 1 and a sensor 3.
The base 1 and the sensor 3 are used to test the blowing waveform of the nozzle opening 211 of the nozzle assembly 2. As shown in fig. 1, 4 and 9, the nozzle assembly 2 is provided with a nozzle opening row 21, the nozzle opening row 21 having a plurality of nozzle openings 211 arranged at equal intervals, the plurality of nozzle openings 211 being identical in shape and size and aligned in the arrangement direction. In the example shown in the drawings, the nozzle opening rows 21 are a single row, but are not limited thereto, and may be arranged in two or more rows depending on the actual situation. The shape of the nozzle opening 211 may be rectangular as shown in the drawings, but is not limited thereto and may be rectangular, circular, oval, and the like.
The base 1 includes a main body 11 and two positioning claws 12. The base 1 may also include a fastener 13, as the case may be. Depending on the different configurations of the fixing member 13, the base 1 may further include a first plate 14, a guide post 15, and a spring 16. The base 1 may also include a second plate 17, depending on the actual use.
The body 11 is provided with a first through hole 111. The main body 11 may also be provided with a second through hole 112 in the main body 11, depending on the actual use. The main body 11 may also be provided with a mounting hole 113 depending on the actual use. The body 11 has a top surface 114.
The first through hole 111 penetrates the body 11 in the front-rear direction D1 of the body 11. The first through hole 111 is for accommodating the sensor 3 for detecting an air blowing waveform positioned in the first through hole 111 and aligned with the corresponding one of the nozzle openings 211. As shown in fig. 2, 6 and 7, the first through hole 111 is circular, but not limited thereto, and the shape of the first through hole is adapted to the outer shape of the sensor 3, for example, the first through hole 111 may be rectangular, oval, etc. As shown in fig. 6, the lowest position P1 of the first through hole 111 in the vertical direction D2 is set so that the vertical center plane of the sensor 3 positioned in the first through hole 111 is flush with the vertical symmetrical planes 12b of the two positioning claws 12, which will be described later, thereby ensuring that the positions of all the nozzle openings 211 detected by the sensor 3 are on the same line and ensuring the reliability of the detection result. In the embodiments shown in fig. 2, 4 and 5 and 9, the first through hole 111 is used for receiving the sensor 3 for detecting the blowing waveform with a clearance fit. Of course, the first through hole 111 may receive the sensor 3 by interference fit, depending on the actual use.
The second through hole 112 extends from one side of the up-down direction D2 of the main body 11 to the first through hole 111 in the up-down direction D2, and the second through hole 112 and the first through hole 111 communicate, as shown in fig. 2, 5, and 6. In the drawing, the second through hole 112 extends from the upper side of the up-down direction D2 of the main body 11 to the first through hole 111 along the up-down direction D2, but may extend from the lower side of the up-down direction D2 of the main body 11 to the first through hole 111 along the up-down direction D2, or may extend from the left or right side of the left-right direction D3 of the main body 11 to the first through hole 111 along the left-right direction D3.
The mounting hole 113 is used to align with a through hole 141 of the first plate 14 described later.
In the embodiment shown in fig. 2 and 5, the top surface 114 is a horizontal surface and is disposed parallel to the horizontal top surface 22 of the nozzle assembly 2, which is very suitable for the case of performing the detection of the blowing waveform with respect to the leftmost/rightmost nozzle opening 211 of the nozzle assembly 2, because only the corresponding one of the two positioning claws 12 to be described later is inserted into the leftmost/rightmost second nozzle opening 211 of the nozzle assembly 2 and the other one of the two positioning claws 12 is suspended, the positioning claw 12 inserted into the leftmost/rightmost second nozzle opening 211 of the nozzle assembly 2 maintains the posture of the base 1 by interference fit, so that the centering of the sensor 3 with the leftmost/rightmost nozzle opening 211 can be maintained. Even if an extremely slight visually observable deviation in the alignment of the sensor 3 with the leftmost/rightmost nozzle opening 211 is possible because the base 1 is now supported by a single positioning pawl 12, it is possible to ensure that the sensor 3 is aligned with the leftmost/rightmost nozzle opening 211 without deviation by manually applying a force (for example, on a floating positioning pawl 12) during inspection and visually inspecting whether the top surface 114 is parallel with the horizontal top surface 22 of the nozzle assembly 2, by the top surface 114 being horizontal and being arranged parallel to the horizontal top surface 22 of the nozzle assembly 2.
The two positioning claws 12 are symmetrically located on both sides of the left-right direction D3 of the first through hole 111 of the main body 11. Each positioning pawl 12 is for interference fit with the nozzle opening 211 adjacent to the nozzle opening 211 in the pair of first through holes 111. Through the interference fit between the two positioning claws 12 and the two nozzle openings 211 separated by one nozzle opening 211 in the three adjacent nozzle openings 211, the alignment between the sensor 3 positioned in the first through hole 111 and the nozzle opening 211 separated by the two nozzle openings 211 can be stably maintained, so that the detection positions of the corresponding nozzle openings 211 are ensured to be on the same straight line, and the reliability of the detection result is improved. As described above, in the case of performing the blowing waveform detection with respect to the leftmost/rightmost nozzle opening 211 of the nozzle assembly 2, the positioning pawl 12 inserted into the second nozzle opening 211 from the leftmost/rightmost side of the nozzle assembly 2 tries to maintain the posture of the base 1 by interference fit, thereby facilitating the alignment of the sensor 3 with the leftmost/rightmost nozzle opening 211 of the nozzle assembly 2 by manual assistance.
Each positioning pawl 12 includes an insertion portion 121 and a flange 122, as shown in fig. 2 and 5.
The insertion portion 121 is used to insert the corresponding nozzle opening 211 of the nozzle assembly 2 with an interference fit, as shown in fig. 2 and 5. The front end 121a of the insertion part 121 is chamfered at the edges, and preferably, the front end 121a of the insertion part 121 is chamfered at four edges of the upper, lower, left and right edges. The use of the chamfer facilitates smooth guiding and smooth insertion of the insertion portion 121 into the corresponding nozzle opening 211 of the nozzle assembly 2, and also prevents the front end 121a of the insertion portion 121 from striking the periphery of the corresponding nozzle opening 211 to damage the periphery of the nozzle opening 211.
The flange 122 is located between the insert 121 and the body 11, as shown in fig. 2 and 5. The flange 122 projects radially outwardly relative to the insertion portion 121, and the flange 122 is adapted to be stopped on the outer peripheral wall 211w of the corresponding nozzle opening 211, as shown in fig. 2 and 5 in conjunction with fig. 1, 4, and 9. By the flange 122 for stopping on the outer peripheral wall 211w of the corresponding nozzle opening 211, a required gap in detection accuracy between the sensor 3 positioned in the first through hole 111 and the corresponding one of the nozzle openings 211 can be ensured, thereby ensuring accuracy and reliability of the detection result of the sensor 3. Preferably, as shown in fig. 2 and 5, the flange 122 is disposed with respect to the entire circumference of the insertion portion 121, thereby increasing the area of the flange 122 stopped on the outer circumferential wall 211w of the corresponding nozzle opening 211, and further ensuring the accuracy and reliability of the detection result of the sensor 3.
As shown in fig. 6, the up-down direction symmetrical surfaces 12b of the two positioning claws 12 are coplanar, the left-right direction symmetrical surfaces 12c of the two positioning claws 12 are parallel to the left-right direction symmetrical surface 111c of the first through hole 111, and the interval d1 between the left-right direction symmetrical surface 12c of each positioning claw 12 and the left-right direction symmetrical surface 12c of the first through hole 111 is set equal to the interval d2 between the left-right direction symmetrical surfaces 211c of the adjacent two nozzle openings 211 of the nozzle assembly 2. Based on this configuration, it is advantageous for the sensor 3 positioned in the first through hole 111 to achieve centering with the corresponding nozzle opening 211. Preferably, the up-down direction symmetric surfaces 12b of the two positioning claws 12 are coplanar with the up-down direction symmetric surface 111b of the first through hole 111. When the aforementioned lowest position P1 of the first through hole 111 in the up-down direction D2 is set such that the up-down direction center plane of the sensor 3 positioned in the first through hole 111 is coplanar with the up-down direction symmetric planes 12b of the two positioning pawls 12, it is structurally extremely advantageous for the sensor 3 positioned in the first through hole 111 to be centered with the corresponding nozzle opening 211, based on the up-down direction symmetric planes 12b of the two positioning pawls 12 being coplanar with the up-down direction symmetric plane 111b of the first through hole 111.
Referring to fig. 6 in combination with fig. 1, 4, 5, and 9, a distance d4 between the inner surface 121i of the insertion portion 12 of each positioning pawl 12 and the left-right direction symmetric surface 111c of the first through hole 111 is set to be larger than a distance d3 between the left-right direction symmetric surface 211c of the leftmost nozzle opening 211 of the nozzle assembly 2 and the left edge 23 of the nozzle assembly 2; the distance d4 between the inner side surface 121i of the insertion portion 12 of each positioning pawl 12 and the left-right direction symmetric surface 111c of the first through hole 111 is set larger than the distance d5 between the left-right direction symmetric surface 211c of the rightmost nozzle opening 211 of the nozzle assembly 2 and the right edge 24 of the nozzle assembly 2. This structural design is suitable for the case of the blowing waveform detection for the leftmost/rightmost nozzle openings 211 of the nozzle assembly 2 described earlier.
The fixing member 13 can pass through the second through hole 112. The fixing member 13 is used to fix the sensor 3 accommodated in the first through hole 111. In the first embodiment of the base 1 shown in fig. 2 to 4, the fixing member 13 is a bolt, and accordingly, the second through hole 112 is a screw hole, and specifically, before the sensor 3 is mounted in the first through hole 111, the fixing member 13 is screwed out of the second through hole 112 by hand or a tool to be removed from the first through hole 111; after the sensor 3 is mounted in the first through hole 111, the fixing member 13 is screwed by hand or a tool so that the fixing member 13 enters the first through hole 111 until the fixing member 13 presses the sensor 3. In the second embodiment of the base 1 shown in fig. 5 to 9, the fixing member 13 may be a smooth rod, and accordingly, the second through hole 112 is a light hole. The end of the fixing member 13 close to the first through hole 111 has an arc surface 131 recessed in a direction away from the first through hole 111, and the arc surface 131 is used to complement the outer peripheral surface of the sensor 3, as shown in fig. 3 and 8, and positioning of the sensor 3 in two dimensions of the up-down direction D2 and the left-right direction D3 is facilitated by the arc surface 131 of the fixing member 13, so that the sensor 3 is centered with the corresponding nozzle opening 211 and the centering accuracy is ensured.
The first plate 14 has perforations 141. The through hole 141 is aligned with the mounting hole 113 in the up-down direction D2. A fixing member 13 is fixed to a side of the first plate 14 facing the first through hole 111.
The guide post 15 has a cap portion 151 and a rod portion 152.
The shaft portion 152 of the guide post 15 passes through the through hole 141 of the first plate 14 and is fixed in the mounting hole 113 of the main body 11.
The spring 16 is mounted between the upper surface 142 of the first plate 14 and the cap 151 of the guide post 15. Thus, before the sensor 3 is mounted in the first through hole 111, the fixing member 13 can be disengaged from the first through hole 111 by manually lifting the first plate 14 against the elastic force of the spring 16; after the sensor 3 is installed in the first through hole 111, the manually applied force is released, and the spring presses the first plate 14 through the elastic recovery of the spring 16, so that the first plate 14 drives the fixing member 13 to move towards the first through hole 111, and the fixing member 13 enters the first through hole 111 and presses the sensor 3. The elasticity of the spring 16 can be determined according to actual requirements, and compared with the mode that the fixing piece 13 adopts a bolt and the second through hole 112 is a threaded hole, the mode that the fixing piece 13, the first plate 14, the guide post 15 and the spring 16 are adopted, and the elastic action of the spring 16 can be flexibly and controllably selected, so that the pressing force of the fixing piece 13 for pressing the sensor 3 is flexible and controllable, and the precision is high.
The second plate 17 is erected on the upper surface 142 of the first plate 14, as shown in fig. 5 to 8. The second plate 17 facilitates the operator to apply a force by hand to lift the first plate 14, improving the ease of operation.
In the example of fig. 5 and 6, the guide posts 15, the springs 16, the through holes 141, and the mounting holes 113 are all two, and the two through holes 141 are symmetrical with respect to the fixing member 13 in the left-right direction D3, so that after the sensor 3 is mounted in the first through hole 111, the force applied to the first plate 14 by the two springs 16 is symmetrical, and further, the force applied to the sensor 3 by the fixing member 13 and transmitted to the fixing member 13 via the first plate 14 is uniform in the left-right direction D3, thereby facilitating the centering of the sensor 3 with the corresponding nozzle opening 211 and ensuring the centering accuracy.
The sensor 3 is adapted to be received and positioned in the first through hole 111 and aligned with a corresponding one of the nozzle openings 211. The manner in which the sensor 3 is positioned in the first through hole 111 is not limited to the aforementioned two embodiments using fig. 2 and 5, and for example, the sensor 3 may be inserted into the first through hole 111 by interference fit. When the sensor 3 can also be inserted into and positioned in the first through hole 111 by interference fit, the fixing member 13, the first plate 14, the guide post 15, the spring 16, and the second plate 17 can be omitted.
In summary, in the present invention, the two positioning claws 12 are symmetrically located at two sides of the left-right direction D3 of the first through hole 111 of the main body 11, and each positioning claw 12 is used for interference fit with the nozzle opening 211 adjacent to the nozzle opening 211 aligned with the first through hole 111, so that the alignment between the sensor 3 positioned in the first through hole 111 and the corresponding one of the nozzle openings 211 can be ensured, thereby ensuring that the positions of all the nozzle openings 211 detected by the sensor 3 are on the same straight line, and further ensuring the reliability and accuracy of the detection result of the sensor 3. In addition, compare with the three-dimensional fine setting testboard of background art, base 1 simple structure, convenient operation. In addition, the nozzle assembly 2 does not have to be fixed, thereby reducing costs, as compared to the background art inspection process.
The above detailed description describes exemplary embodiments, but is not intended to limit the combinations explicitly disclosed herein. Thus, unless otherwise specified, various features disclosed herein can be combined together to form a number of additional combinations that are not shown for the sake of brevity.
Claims (11)
1. A base (1) for testing a blowing waveform of nozzle openings (211) of a nozzle assembly (2), the nozzle assembly (2) being provided with a nozzle opening row (21), the nozzle opening row (21) having a plurality of nozzle openings (211) arranged at equal intervals, the plurality of nozzle openings (211) being identical in shape and size and aligned in an arrangement direction, characterized in that,
the base (1) comprises a main body (11) and two positioning claws (12),
the main body (11) is provided with a first through hole (111), the first through hole (111) penetrates through the main body (11) in the front-rear direction (D1) of the main body (11), the first through hole (111) is used for accommodating a sensor (3) which is positioned in the first through hole (111) and is aligned with a corresponding one of the nozzle openings (211) and is used for detecting an air blowing waveform,
the two positioning claws (12) are symmetrically positioned on two sides of the left-right direction (D3) of the first through hole (111) of the main body (11), and each positioning claw (12) is used for being in interference fit with the adjacent nozzle opening (211) of the nozzle opening (211) in the first through hole (111) pair.
2. Susceptor (1) according to claim 1, characterised in that each positioning pawl (12) comprises an insertion portion (121) and a flange (122), the insertion portion (121) being intended to be inserted with interference into a corresponding nozzle opening (211) of the nozzle assembly (2), the flange (122) being located between the insertion portion (121) and the body (11), the flange (122) projecting radially outwards with respect to the insertion portion (121), the flange (122) being intended to be stopped against an outer peripheral wall (211w) of the corresponding nozzle opening (211).
3. Foundation (1) according to claim 1,
the up-down symmetrical surfaces (12b) of the two positioning claws (12) are coplanar,
the left-right direction symmetric surfaces (12c) of the two positioning claws (12) are parallel to the left-right direction symmetric surface (111c) of the first through hole (111), and the distance (d1) between the left-right direction symmetric surface (12c) of each positioning claw (12) and the left-right direction symmetric surface (12c) of the first through hole (111) is set to be equal to the distance (d2) between the left-right direction symmetric surfaces (211c) of the adjacent two nozzle openings (211) of the nozzle assembly (2).
4. A base (1) according to claim 3, characterized in that the up-down direction symmetry plane (12b) of the two positioning claws (12) is coplanar with the up-down direction symmetry plane (111b) of the first through hole (111).
5. The susceptor (1) according to claim 2 or 3, wherein the first through hole (111) is circular, and the lowest position (P1) of the first through hole (111) in the up-down direction (D2) is arranged such that the up-down direction center plane of the sensor (3) positioned in the first through hole (111) is coplanar with the up-down direction symmetric planes (12b) of the two positioning claws (12).
6. Foundation (1) according to claim 2,
the distance (d4) between the inner side surface (121i) of the insertion part (12) of each positioning claw (12) and the left-right direction symmetrical plane (111c) of the first through hole (111) is set to be larger than the distance (d3) between the left-right direction symmetrical plane (211c) of the leftmost nozzle opening (211) of the nozzle assembly (2) and the left edge (23) of the nozzle assembly (2);
a distance (d4) between the inner surface (121i) of the insertion section (12) of each positioning pawl (12) and a left-right direction symmetric surface (111c) of the first through hole (111) is set to be larger than a distance (d5) between a left-right direction symmetric surface (211c) of the rightmost nozzle opening (211) of the nozzle assembly (2) and a right edge (24) of the nozzle assembly (2).
7. Foundation (1) according to claim 2,
the first through hole (111) is used for accommodating a sensor (3) for detecting the blowing waveform in a clearance fit manner;
the main body (11) is further provided with a second through hole (112), the second through hole (112) extending from one side of the main body (11) in the up-down direction (D2) to the first through hole (111) in the up-down direction (D2), the second through hole (112) communicating with the first through hole (111),
the base (1) also comprises a fixing piece (13),
the fixing member (13) can pass through the second through hole (112), and the fixing member (13) is used for fixing the sensor (3) accommodated in the first through hole (111).
8. A foundation (1) according to claim 7, wherein the fixing member (13) is a bolt and the second through hole (112) is a threaded hole.
9. Foundation (1) according to claim 7,
the main body (11) is also provided with a mounting hole (113);
the base (1) further comprises a first plate (14), a guide post (15) and a spring (16);
the first plate (14) has a through hole (141), the through hole (141) is aligned with the mounting hole (113) in the up-down direction (D2), a fixing member (13) is fixed to a side of the first plate (14) facing the first through hole (111),
the guide post (15) has a cap portion (151) and a rod portion (152), the rod portion (152) of the guide post (15) passes through the through hole (141) of the first plate (14) and is fixed in the mounting hole (113) of the main body (11),
the spring (16) is mounted between the upper surface (142) of the first plate (14) and the cap (151) of the guide post (15).
10. A base (1) according to any one of claims 7-9, characterized in that the end of the fixing member (13) close to the first through hole (111) has an arc surface (131) that is concave in a direction away from the first through hole (111), the arc surface (131) being intended to complement the outer circumferential surface of the sensor (3).
11. A nozzle blowing waveform testing device (M) characterized by comprising a base (1) according to any one of claims 1 to 10 and a sensor (3), the sensor (3) being intended to be received and positioned in the first through hole (111) and being centered with a corresponding one of the nozzle openings (211).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910700980.9A CN112326212B (en) | 2019-07-31 | 2019-07-31 | Nozzle blowing waveform test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910700980.9A CN112326212B (en) | 2019-07-31 | 2019-07-31 | Nozzle blowing waveform test device |
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| CN112326212A true CN112326212A (en) | 2021-02-05 |
| CN112326212B CN112326212B (en) | 2024-12-27 |
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| CN112326212B (en) | 2024-12-27 |
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