A detection device

Abstract

The application relates to the technical field of material height detection, and discloses a detection device which comprises a material bearing part and a detection assembly, the material bearing part comprises a material bearing table and a material bearing rod, the detection assembly comprises a first detection seat, a first detection support, a first detection head, a first driving part and a first detection sensor, a first detection surface arranged in a plane is arranged on the first detection support, the first detection surface is used for bearing the bottom surface of a detected part, a second detection surface arranged in a plane is arranged on the first detection head, the first driving part is used for driving the first detection head to move linearly on the first detection seat, and the detected part is pressed between the second detection surface and the first detection surface. The detection device provided by the application has the advantages that the reference surface of the first detection surface remains unchanged, the first detection surface cannot gather dust or chippings, the detection performance is improved, and the machining efficiency of the valve plate machine is improved.

Description

Technical Field

[0001] This invention relates to the field of material height detection technology, and more particularly to a detection device. Background Technology

[0002] In existing technology, during the assembly of the piston and valve plate, the valve plate is placed inside the piston. The thickness of various valve plates ranges from 0.1 to 0.3 mm. Height detection is required for the assembled piston or bottom valve to ensure accurate valve plate insertion. Traditional detection devices use a linear encoder to measure the distance between the bottom surface of the piston and the top surface of the valve plate, thus determining the piston's height. However, after prolonged use, the accumulation of dust or debris can cause errors in the detection device, leading to the piston being deemed scrap and consequently reducing the processing efficiency of the valve plate machine.

[0003] Therefore, how to provide a detection device to improve its detection performance has become an urgent technical problem to be solved. Summary of the Invention

[0004] The technical problem to be solved by the present invention is how to provide a detection device to improve its detection performance.

[0005] Therefore, according to a first aspect, an embodiment of the present invention discloses a detection device, comprising: a material support and a detection assembly. The material support includes a material support platform and a material support rod, the material support rod being used to sleeve the piston or bottom valve and valve plate to be tested. The detection assembly includes a first detection seat, a first detection bracket, a first detection head, a first driving member, and a first detection sensor. The first detection bracket and the first detection sensor are both mounted on the first detection seat. The displacement end of the first detection sensor moves synchronously with the first detection head. The first detection bracket has a first detection surface arranged in a plane, the first detection surface being used to support the bottom surface of the workpiece to be tested. The first detection head has a second detection surface arranged in a plane. The first driving member is used to drive the first detection head to move linearly on the first detection seat, pressing the workpiece to be tested between the second detection surface and the first detection surface. Wherein, the second detection surface is calibrated to zero when it contacts the first detection surface, and the distance between the second detection surface and the first detection surface is the thickness of the workpiece to be tested, which is output by the first detection sensor.

[0006] The present invention is further configured such that there are two first detection brackets, which are arranged opposite to each other on the first detection seat, and a gap is provided between the two first detection brackets to accommodate the material support rod passing through.

[0007] The present invention is further configured such that the first detection seat is provided with a movable groove, and the material receiving component moves within the movable groove by being driven by a cylinder.

[0008] The present invention is further configured such that the first detection bracket is provided with a first inclined surface.

[0009] The present invention is further configured such that a first slide rail arranged vertically is installed on the first detection seat, a first slider is slidably engaged with the first slide rail, and the first detection head is fixedly connected to the first slider.

[0010] The present invention is further configured such that the first detection sensor is a pull rope displacement sensor, and the first slider is provided with a connecting rod, the connecting rod being connected to the pull rope of the pull rope displacement sensor.

[0011] The present invention is further configured such that the first driving component is a driving cylinder.

[0012] The present invention is further configured such that the first detection head has a first through cavity for accommodating the insertion of the material receiving rod.

[0013] The present invention is further configured such that one end of the first detection head is provided with a first air blowing frame, the first air blowing frame is provided with a second passage cavity communicating with the first passage cavity, and the first air blowing frame is used to introduce compressed air.

[0014] The present invention has the following beneficial effects: the first detection head is driven by the first driving member to move linearly on the first detection seat, pressing the workpiece to be detected between the second detection surface and the first detection surface. The distance between the second detection surface and the first detection surface is the thickness of the workpiece to be detected, and is output by the first detection sensor. This provides a detection device. Since the reference surface of the first detection surface remains unchanged and dust or debris cannot accumulate on the first detection surface, its detection performance is improved and the processing efficiency of the valve plate machine is increased. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a detection device disclosed in this embodiment;

[0017] Figure 2 This is a schematic diagram illustrating the application of a detection device disclosed in this embodiment;

[0018] Figure 3 This is a schematic diagram of the structure of the material support component in a detection device disclosed in this embodiment;

[0019] Figure 4 This is an exploded structural diagram of the material-bearing component in a detection device disclosed in this embodiment;

[0020] Figure 5 This is a partial structural schematic diagram of a detection device disclosed in this embodiment;

[0021] Figure 6 This is a schematic diagram of the structure of the first detection bracket in a detection device disclosed in this embodiment;

[0022] Figure 7 This is a side view schematic diagram of a detection device disclosed in this embodiment;

[0023] Figure 8 yes Figure 7 A schematic diagram of the AA cross-sectional structure;

[0024] Figure 9 This is one of the three-dimensional structural schematic diagrams of another detection device disclosed in this embodiment;

[0025] Figure 10 This is a three-dimensional structural diagram of the first detection bracket in another detection device disclosed in this embodiment;

[0026] Figure 11 This is a second three-dimensional structural schematic diagram of another detection device disclosed in this embodiment.

[0027] Reference numerals: 1. Material receiving component; 11. Material receiving platform; 12. Material receiving rod; 121. Material receiving protrusion; 122. Side plane; 2. Detection assembly; 21. First detection seat; 211. Movable groove; 22. First detection bracket; 221. First detection surface; 222. First inclined surface; 223. Second inclined surface; 23. First detection head; 231. Second detection surface; 232. First through cavity; 24. First driving component; 25. First detection sensor; 26. First slide rail; 27. First slider; 28. Connecting rod; 3. Piston; 4. First air blowing frame; 41. Second through cavity; 5. Locking component; 6. Bottom valve. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can also refer to the internal connection of two components; and they can refer to a wireless connection or a wired connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] This invention discloses a detection device, such as... Figure 1-11As shown, it includes: a material receiving component 1 and a detection component 2. The material receiving component 1 includes a material receiving platform 11 and a material receiving rod 12. The material receiving rod 12 is used to sleeve the piston 3 or bottom valve 6 and valve plate to be tested. The detection component 2 includes a first detection seat 21, a first detection bracket 22, a first detection head 23, a first driving component 24, and a first detection sensor 25. The first detection bracket 22 and the first detection sensor 25 are both installed on the first detection seat 21. The displacement end of the first detection sensor 25 moves synchronously with the first detection head 23. The first detection bracket 22 is provided with a first detection sensor arranged on a plane. The measuring surface 221 has two parts: a first measuring surface 221 for supporting the bottom surface of the workpiece under test, and a second measuring surface 231 on the first measuring head 23. A first driving member 24 drives the first measuring head 23 to move linearly on the first measuring seat 21, pressing the workpiece under test between the second measuring surface 231 and the first measuring surface 221. The second measuring surface 231 is calibrated to zero when it contacts the first measuring surface 221. The distance between the second measuring surface 231 and the first measuring surface 221 is the thickness of the workpiece under test, and is output by the first measuring sensor 25. In practice, the material support platform 11 and the material support rod 12 are fixedly connected by a locking member 5, which can be a locking screw or a locking bolt. The material support rod 12 has a material support protrusion 121 for supporting the piston 3 under test, and oppositely arranged side planes 122. The side planes 122 facilitate the insertion of the valve plate and the piston 3 into the material support rod 12. Both the first detection bracket 22 and the first detection seat 21 are L-shaped.

[0033] It should be noted that the first detection head 23 is driven by the first driving component 24 to move linearly on the first detection seat 21, pressing the workpiece to be tested between the second detection surface 231 and the first detection surface 221. The distance between the second detection surface 231 and the first detection surface 221 is the thickness of the workpiece to be tested, and is output by the first detection sensor 25. This provides a detection device. Since the reference surface of the first detection surface 221 remains unchanged and the first detection surface 221 cannot accumulate dust or debris, its detection performance is improved, and the processing efficiency of the valve plate machine is increased.

[0034] It should also be noted that during the actual assembly process of the valve plate machine, the valve plate is placed inside the piston 3. The first driving component 24 drives the first detection head 23 to move linearly, so that the second detection surface 231 of the first detection head 23 is in contact with the upper end surface of the valve plate. Since the first detection surface 221 on the first detection bracket 22 is the detection zero point, the first detection sensor 25 obtains the current height value of the piston 3 under test based on the distance between the first detection surface 221 and the second detection surface 231. If the current height value is the same as the preset parameter, it can be known that the valve plate is normally assembled into the piston 3. If the current height value of the piston 3 under test is significantly different from the preset parameter, it can be known that the valve plate is not assembled in the piston 3 under test or that there are too many valve plates. The material is judged as waste material and is picked up by a robot and placed in a waste collection tray during the assembly line processing.

[0035] like Figure 1 and Figure 6 As shown, there are two first detection brackets 22, which are arranged opposite to each other on the first detection seat 21. A gap is provided between the two first detection brackets 22 to accommodate the material support rod 12 passing through.

[0036] like Figure 1 and Figure 4 As shown, the first detection seat 21 is provided with a movable groove 211, and the material receiving component 1 moves within the movable groove 211 driven by the pushing cylinder. It should be noted that, through the driving action of the pushing cylinder, multiple material receiving components 1 with the pistons to be tested 3 can be pushed sequentially to the detection position, so that the detection assembly 2 can sequentially perform height detection on multiple pistons to be tested 3.

[0037] like Figure 1 and Figure 6 As shown, the first detection bracket 22 is provided with a first inclined surface 222. It should be noted that, by setting the first inclined surface 222, when the pushing cylinder pushes the material receiving component 1 to move in the movable groove 211, it is convenient for the piston to be tested 3 to enter the first detection surface 221 along the first inclined surface 222.

[0038] like Figure 1 and Figure 6 As shown, the first detection bracket 22 is provided with a second inclined surface 223 opposite to the first inclined surface 222. It should be noted that, by setting the second inclined surface 223, after the piston under test 3 has been detected, it is convenient for the piston under test 3 to slide down quickly, so that the piston under test 3 can be quickly separated from the first detection bracket 22.

[0039] like Figure 1 and Figure 5As shown, a first slide rail 26 arranged vertically is mounted on the first detection base 21. A first slider 27 is slidably fitted onto the first slide rail 26, and the first detection head 23 is fixedly connected to the first slider 27. It should be noted that the first slider 27 is driven to slide on the first slide rail 26 by the driving action of the first driving member 24. Since the first detection head 23 is fixedly connected to the first slider 27, the first detection head 23 is thus driven to move linearly.

[0040] like Figure 1 and Figure 5 As shown, the first detection sensor 25 is a pull-string displacement sensor, and the first slider 27 is provided with a connecting rod 28, which is connected to the pull-string of the pull-string displacement sensor. It should be noted that, through the driving action of the first driving member 24, the first detection head 23 is brought into contact with the first detection surface 221, and the pull-string of the pull-string displacement sensor is moved to obtain the detection zero point of the pull-string displacement sensor; when the piston 3 under test is on the first detection surface 221, through the driving action of the first driving member 24, the second detection surface 231 of the first detection head 23 is brought into contact with the surface to be measured of the piston 3 under test, thereby obtaining the height value of the surface to be measured.

[0041] like Figure 5 As shown, the first driving component 24 is a driving cylinder. It should be noted that the first driving component 24 is a driving cylinder, which facilitates the linear movement of the first detection head 23, and has a simple structure, resulting in a smaller footprint and lower manufacturing cost for the piston 3 detection device.

[0042] like Figure 1 , Figure 7 and Figure 8 As shown, the first detection head 23 is provided with a first through cavity 232 for accommodating the insertion of the material receiving rod 12. It should be noted that, through the setting of the first through cavity 232, the first detection head 23 can be smoothly inserted into the piston 3 to be measured when moving linearly, so that the second detection surface 231 is in contact with the surface to be measured of the piston 3, thereby obtaining the height value of the surface to be measured.

[0043] like Figure 1 , Figure 7 and Figure 8 As shown, one end of the first detection head 23 is provided with a first air blowing frame 4, and the first air blowing frame 4 is provided with a second passage 41 communicating with the first passage 232. The first air blowing frame 4 is used to introduce compressed air. It should be noted that by connecting the first air blowing frame 4 to an external air source pipeline and introducing compressed air into the first air blowing frame 4, the compressed air flows out of the first detection head 23, which can prevent the valve plate from being attracted to the first detection head 23 and ensure the normal assembly of the valve plate.

[0044] Another detection device disclosed in the embodiments of the present invention, such as Figure 9-11As shown, the bottom valve 6 is sleeved on the material support rod 12, pressing the bottom valve 6 between the second detection surface 231 and the first detection surface 221. The distance between the second detection surface 231 and the first detection surface 221 is the thickness of the bottom valve 6, and is output by the first detection sensor 25. In specific implementation, in order to facilitate the detection of the bottom valve 6, the area of ​​the first detection surface 221 is reduced, so that the opening of the bottom valve 6 is embedded in the first detection surface 221, thereby smoothly detecting the bottom valve 6; at the same time, this detection device can not only detect the height of the bottom valve 6, but also detect the height of the piston 3.

[0045] Working principle: The first detection head 23 is driven by the first driving component 24 to move linearly on the first detection seat 21, pressing the workpiece to be detected between the second detection surface 231 and the first detection surface 221. The distance between the second detection surface 231 and the first detection surface 221 is the thickness of the workpiece to be detected, and is output by the first detection sensor 25. This provides a detection device. Since the reference surface of the first detection surface 221 remains unchanged and the first detection surface 221 cannot accumulate dust or debris, its detection performance is improved and the processing efficiency of the valve plate machine is increased.

[0046] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A detection device, characterized in that, include: The device comprises a material support (1) and a detection assembly (2). The material support (1) includes a material support platform (11) and a material support rod (12). The material support rod (12) is used to sleeve the piston (3) or bottom valve (6) and valve plate to be tested. The detection assembly (2) includes a first detection seat (21), a first detection bracket (22), a first detection head (23), a first drive component (24), and a first detection sensor (25). The first detection bracket (22) and the first detection sensor (25) are both installed on the first detection seat (21). The displacement end of the first detection sensor (25) moves synchronously with the first detection head (23). The first detection bracket (22) has a flat surface. The first detection surface (221) is used to support the bottom surface of the workpiece being tested. The first detection head (23) is provided with a second detection surface (231) that is arranged in a plane. The first driving member (24) is used to drive the first detection head (23) to move linearly on the first detection seat (21) and press the workpiece being tested between the second detection surface (231) and the first detection surface (221). The second detection surface (231) is calibrated to zero when it contacts the first detection surface (221). The distance between the second detection surface (231) and the first detection surface (221) is the thickness of the workpiece being tested and is output by the first detection sensor (25). The number of the first detection brackets (22) is set to two, and the two first detection brackets (22) are arranged opposite to each other on the first detection seat (21). A gap is provided between the two first detection brackets (22) to accommodate the material support rod (12) passing through. The first detection head (23) is provided with a first through cavity (232) for accommodating the insertion of the material support rod (12).

2. The detection device according to claim 1, characterized in that, The first detection seat (21) is provided with a movable groove (211), and the material receiving component (1) moves in the movable groove (211) by the drive of the cylinder.

3. The detection device according to claim 2, characterized in that, The first detection bracket (22) is provided with a first inclined surface (222).

4. The detection device according to claim 1, characterized in that, The first detection seat (21) is equipped with a first slide rail (26) arranged in a vertical direction. The first slide rail (26) is slidably engaged with a first slider (27). The first detection head (23) is fixedly connected to the first slider (27).

5. The detection device according to claim 4, characterized in that, The first detection sensor (25) is a pull rope displacement sensor, and the first slider (27) is provided with a connecting rod (28), which is connected to the pull rope of the pull rope displacement sensor.

6. The detection device according to claim 1, characterized in that, The first driving component (24) is a driving cylinder.

7. The detection device according to claim 6, characterized in that, One end of the first detection head (23) is provided with a first air blowing frame (4), and the first air blowing frame (4) is provided with a second passage (41) communicating with the first passage (232). The first air blowing frame (4) is used to introduce compressed air.

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