Sealing performance testing device
By designing an interlocking fixture structure and controlling the air and power supply method, the problem of air pipe and wire interference during the detection process of automated equipment was solved, and the stability and reliability of the engine casing sealing test were achieved.
Patent Information
- Application Number
- CN202422714710.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-11-07
AI Technical Summary
When existing automated equipment inspects engine casings, the movement of electrical structures can easily cause interference with air pipes or wires, leading to equipment failure and affecting inspection stability.
A sealing test device was designed, in which the workpiece was fixed by intersecting the first clamp and the second clamp, and air and electricity were supplied through a control mechanism, avoiding direct communication between the leak detection mechanism and the control mechanism through air pipes and wires, thereby ensuring stability during movement.
The failure rate of the sealing test device is reduced, and the working stability and detection efficiency are improved.
Smart Images
Figure CN223426155U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of sealing test devices, and in particular to a sealing test device. Background Art
[0002] With the development of engine technology, a die-casting one-piece molding method has been used to manufacture engine casings to meet the airtightness requirements of the engine casings. However, during the manufacturing process, small cracks often appear in the casings due to various reasons. These small cracks are difficult to detect with the naked eye.
[0003] In the related art, automated equipment is generally used to perform sealing detection on the housing.
[0004] However, due to the complex structure of the engine housing, different locations such as oil channels or water channels need to be inspected. The electrical structure of the automation equipment in the existing technology is prone to cause interference with air pipes or wires during movement, which in turn leads to equipment failure. Utility Model Content
[0005] Based on this, it is necessary to provide a sealing test device to address the problem that the electrical structure of the automation equipment in the prior art may easily cause interference with the air pipe or wire during the movement of the shell to seal it.
[0006] A sealing test device, comprising:
[0007] frame;
[0008] a first fixture, the first fixture being used for loading and unloading a workpiece to be measured and being movably connected to the frame along a first direction;
[0009] a second clamp, the second clamp being movably connected to the frame along a second direction, the first clamp having a first electrical interface, the second clamp having a second electrical interface, the first direction and the second direction intersecting, such that the second clamp and the first clamp can move relative to the frame until they engage with each other to fix the workpiece, and when the first clamp and the second clamp engage with each other, the first electrical interface engages with the second electrical interface;
[0010] A leak detection mechanism, used for performing a leak detection on the workpiece;
[0011] A control mechanism, wherein the control mechanism is in conduction with the second electrical interface, and the leakage detection mechanism is in conduction with the first electrical interface. When the first electrical interface is engaged with the second electrical interface, the control mechanism is used to supply air and electricity to the leakage detection mechanism radially through the conductive path between the second electrical interface and the first electrical interface.
[0012] In one embodiment, the first clamp includes a detachably connected support plate and a first clamping plate, the support plate is movably connected to the frame along the first direction, the second clamp includes a detachably connected top plate and a second clamping plate, the top plate is movably connected to the frame along the second direction, and the first clamping plate and the second clamping plate can be engaged to fix the workpiece.
[0013] In one embodiment, the sealing test device further includes a transfer trolley, which is detachably connected to the frame and is used to support the first clamping plate that is detached from the support plate.
[0014] In one embodiment, the transfer trolley is provided with a first guide bar on the surface supporting the first clamping plate, and the frame is provided with a second guide bar. The first guide bar and the second guide bar can be spliced and extended along the first direction. The side edge of the first clamping plate can abut and move away from the support plate relative to the first guide bar and the second guide bar along the first direction.
[0015] In one embodiment, the support plate is provided with a positioning structure, and the positioning structure is used to clamp and fix the first clamping plate.
[0016] In one embodiment, a driver is fixedly provided on the support plate, and the driver is connected to the first clamping plate and is used to push the first clamping plate to separate from the support plate along the first direction.
[0017] In one embodiment, the second clamping plate includes a base plate and at least two positioning blocks, each of the positioning blocks is arranged on a side surface of the base plate facing the top plate, and the top plate has at least two positioning grooves, each of the positioning grooves can be engaged with each of the positioning blocks in a one-to-one correspondence.
[0018] In one embodiment, the frame is further provided with a first in-position sensor and a second in-position sensor, which are arranged on the frame and are used to respectively detect in-position signals of the first fixture moving to a first position and a second position relative to the frame along the first direction. When the first fixture moves to the first position, it can load and unload the workpiece. When the first fixture drives the workpiece to move to the second position, the second fixture can move along the second direction so that the first electrical interface and the second electrical interface are engaged.
[0019] In one embodiment, the second fixture is further connected to an in-position sensor. When the second fixture is engaged with the first fixture and fixes the workpiece, the in-position sensor is used to detect the in-position status of the workpiece in the first fixture.
[0020] In one embodiment, the first direction and the second direction are perpendicular to each other.
[0021] When the sealing test device is in use, the workpiece is first loaded onto the first fixture, and then the first fixture drives the workpiece to move to the test station of the frame along the first direction X. Then, the second fixture moves closer to the first fixture along the second direction Y and closes and engages with the first fixture to fix the workpiece. At the same time, the first electrical interface and the second electrical interface are engaged. In this way, the control mechanism can supply air and power to the leakage detection mechanism, driving the leakage detection mechanism to perform a sealing test on the workpiece. The sealing test device supplies air and power to the leakage detection mechanism radially through the conductive path between the second electrical interface and the first electrical interface through the control mechanism, avoiding direct communication between the leakage detection mechanism and the control mechanism through the air pipe and wire, thereby avoiding the problem of interference of the first fixture and the leakage detection mechanism with the air pipe and wire during movement, thereby reducing the failure rate of the sealing test device and improving working stability. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 Schematic diagram of the structure of a sealing test device in one embodiment of the present application.
[0023] Figure 2 for Figure 1 A schematic diagram of the partial structure of the sealing test device shown in another perspective.
[0024] Figure 3 for Figure 1 The diagram shows a partial structure of the sealing test device from another perspective.
[0025] Explanation of Figure Numbers
[0026] 10. Workpiece; 100. Frame; 110. Second guide bar; 120. Locking cylinder; 130. Rodless cylinder; 200. First fixture; 201. First electrical interface; 210. Support plate; 211. Positioning structure; 220. First clamp; 230. Driver; 300. Second fixture; 301. Second electrical interface; 310. Top plate; 310a. Positioning groove; 320. Second clamp; 321. Base plate; 322. Positioning block; 400. Leak detection mechanism; 500. Control mechanism; 600. Transfer trolley; 610. First guide bar; 710. First in-position sensor; 720. Second in-position sensor; 800. In-position sensor. DETAILED DESCRIPTION
[0027] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.
[0028] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.
[0029] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.
[0030] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.
[0031] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.
[0032] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.
[0033] See Figure 1 , Figure 1 The structural schematic diagram of a sealing test device in one embodiment of the present application is shown. The sealing test device provided in one embodiment of the present application includes a frame 100, a first fixture 200, a second fixture 300, a leak detection mechanism 400 and a control mechanism 500. The first fixture 200 is used to load and unload the workpiece 10 to be tested, and is movably connected to the frame 100 along a first direction X. The second fixture 300 is movably connected to the frame 100 along a second direction Y. The first fixture 200 has a first electrical interface 201, and the second fixture 300 has a second electrical interface 301. The first direction X and the second direction Y intersect, so that the second fixture 300 and the first fixture 200 can move relative to the frame 100 to engage with each other to fix the workpiece 10, and when the first fixture 200 and the second fixture 300 engage with each other, the first electrical interface 201 engages with the second electrical interface 301. The leak detection mechanism 400 is used to perform sealing detection on the workpiece 10. The control mechanism 500 is connected to the second electrical interface 301, and the leakage detection mechanism 400 is connected to the first electrical interface 201. When the first electrical interface 201 is connected to the second electrical interface 301, the control mechanism 500 is used to supply air and electricity to the leakage detection mechanism 400 through the conductive path between the second electrical interface 301 and the first electrical interface 201.
[0034] The sealing test device is used in the following manner. First, the workpiece 10 is loaded on the first clamp 200. Then, the first clamp 200 drives the workpiece 10 to move to the test station of the rack 100 along the first direction X. Next, the second clamp 300 moves to approach the first clamp 200 along the second direction Y and is folded and combined with the first clamp 200 to fix the workpiece 10, and at the same time, the first electrical interface 201 is combined with the second electrical interface 301. In this way, the control mechanism 500 can supply air and power to the leak detection mechanism 400 to drive the leak detection mechanism 400 to test the sealing performance of the workpiece 10. The sealing test device supplies air and power to the leak detection mechanism 400 through the conduction path of the second electrical interface 301 and the first electrical interface 201 by the control mechanism 500, avoiding the direct conduction of the leak detection mechanism 400 and the control mechanism 500 through the air pipe and the wire, and further avoiding the interference of the first clamp 200 and the leak detection mechanism 400 with the air pipe and the wire during movement, thereby reducing the failure rate of the sealing test device and improving the working stability.
[0035] It should be noted that the first direction X and the second direction Y intersect in space. Preferably, the first direction X and the second direction Y are perpendicular to each other.
[0036] Preferably, in combination with Figure 2 As shown, the rack 100 is provided with a rodless cylinder 130 along the first direction X. The first clamp 200 is connected with the rodless cylinder 130. The rodless cylinder 130 is used to drive the first clamp 200 to move back and forth along the first direction X, which is simple and reliable in structure.
[0037] Optionally, in combination with Figure 2 As shown, the second clamp 300 can be but is not limited to further connected with a position sensor 800. When the second clamp 300 is combined with the first clamp 200 to fix the workpiece 10, the position sensor 800 is used to detect the in-place condition of the workpiece 10 of the first clamp 200. In this way, the leak detection mechanism 400 can respond in time when the position sensor 800 detects the presence of the workpiece 10, improving the working efficiency. Preferably, the position sensor 800 is provided with at least two and is arranged around the workpiece 10. When all the position sensors 800 detect the presence of the workpiece 10, the leak detection mechanism 400 starts to work, which ensures the reliability of the work.
[0038] Optionally, the leak detection mechanism 400 can be but is not limited to implemented as a plugging cylinder and a sealing leak detection instrument. The plugging cylinder is used to approach and plug the workpiece 10. The sealing leak detection instrument is used to test the sealing performance of different positions of the workpiece 10, such as oil channels or water channels.
[0039] Optionally, in combination with Figure 2As shown, the first clamp 200 may include, but is not limited to, a detachably connected support plate 210 and a first clamping plate 220, the support plate 210 being movably connected to the frame 100 along a first direction X, and the second clamp 300 including a detachably connected top plate 310 and a second clamping plate 320, the top plate 310 being movably connected to the frame 100 along a second direction Y, and the first clamping plate 220 and the second clamping plate 320 being engageable to fix the workpiece 10.
[0040] Specifically, in this embodiment, when the first clamp 200 and the second clamp 300 need to be replaced to adjust the posture of the workpiece 10 or adapt to different workpieces 10, the first clamp 220 and the second clamp 320 can be engaged with each other first, and then the support plate 210 and the first clamp 220, as well as the top plate 310 and the second clamp 320 can be disassembled, and finally the first clamp 220 and the second clamp 320 can be detached and replaced as a whole, which helps to improve the replacement efficiency.
[0041] Preferably, combined Figure 2 As shown, a locking cylinder 120 is provided on the support plate 210, and the locking cylinder 120 is used to lock the support plate 210 and the first clamping plate 220. When the support plate 210 and the first clamping plate 220 need to be disassembled, it is only necessary to drive the locking cylinder 120 to unlock the support plate 210 and the first clamping plate 220. The structure is simple and reliable.
[0042] Optionally, combined Figure 2 As shown, the sealing test device also includes a transfer trolley 600, which is detachably connected to the frame 100. The transfer trolley 600 is used to support the first clamp 220 separated from the support plate 210, thereby improving the convenience of replacing the first clamp 200 and the second clamp 300.
[0043] Preferably, the surface of the transfer trolley 600 used to support the first clamping plate 220 may be, but is not limited to, provided with a first guide bar 610, and the frame 100 is provided with a second guide bar 110. The first guide bar 610 and the second guide bar 110 can be spliced and extend along the first direction X. The side edge of the first clamping plate 220 can abut and move away from the pallet 210 along the first direction X relative to the first guide bar 610 and the second guide bar 110.
[0044] Specifically, in this embodiment, the transfer trolley 600 is spliced with the frame 100, and the first guide bar 610 is spliced with the second guide bar 110. This can extend the movement path of the first clamp 220 in the first direction X, so that the first clamp 220 can be detached from the frame 100 and transferred to the transfer trolley 600 under the guidance of the first guide bar 610 and the second guide bar 110, thereby improving the efficiency of disassembly and transportation of the first clamp 220. More specifically, when the first clamp 200 and the second clamp 300 need to be replaced to adjust the posture of the workpiece 10 or adapt to different workpieces 10, the first clamp 220 and the second clamp 320 can be first engaged with each other, and the first clamp 220 and the second clamp 320 can be detached and replaced as a whole, which helps to improve replacement efficiency.
[0045] More preferably, combined Figure 2 As shown, the support plate 210 is fixed with a driver 230, which is connected to the first clamp 220 and is used to push the first clamp 220 away from the support plate 210 along the first direction X. In this way, when the first clamp 200 and the second clamp 300 need to be replaced to adjust the posture of the workpiece 10 or adapt to different workpieces 10, the first clamp 220 can be pushed by the driver 230 to realize automatic replacement of the clamp, thereby improving the convenience of replacement and reducing manpower consumption.
[0046] Optionally, combined Figure 2 As shown, the support plate 210 may be, but is not limited to, provided with a positioning structure 211 , and the positioning structure 211 is used to clamp and fix the first clamping plate 220 , thereby achieving precise assembly of the first clamping plate 220 .
[0047] Combine Figure 2 and Figure 3 As shown, the second clamping plate 320 may include, but is not limited to, a base plate 321 and at least two positioning blocks 322. Each positioning block 322 is disposed on a surface of the base plate 321 facing the top plate 310. The top plate 310 has at least two positioning grooves 310a. Each positioning groove 310a can be engaged with each positioning block 322 in a one-to-one correspondence, thereby achieving precise assembly of the top plate 310 and the second clamping plate 320. It is understandable that the positioning blocks 322 and the positioning grooves 310a may also be implemented as a one-to-one corresponding first locking member and a second locking member, and the assembly of the top plate 310 and the second clamping plate 320 is achieved through the locking cooperation of the first locking member and the second locking member. The first locking member and the second locking member may be implemented as a locking pin, a claw, or other structures, which will not be described in detail here.
[0048] Optionally, revisit Figure 1The frame 100 may be, but is not limited to, further provided with a first in-position sensor 710 and a second in-position sensor 720. The first in-position sensor 710 and the second in-position sensor 720 are arranged on the frame 100 and are respectively used to detect in-position signals of the first fixture 200 moving to the first position and the second position relative to the frame 100 along the first direction X. When the first fixture 200 moves to the first position, it can load and unload the workpiece 10. When the first fixture 200 drives the workpiece 10 to move to the second position, the second fixture 300 can move along the second direction Y so that the first electrical interface 201 is engaged with the second electrical interface 301.
[0049] Specifically, in this embodiment, the first in-position sensor 710 and the second in-position sensor 720 can timely detect the movement into position of the first fixture 200 , thereby improving the movement accuracy of the workpiece 10 driven by the first fixture 200 .
[0050] Preferably, the frame 100 is provided with a first limiting mechanism and a second limiting mechanism at the first position and the second position, respectively. The first limiting mechanism and the second limiting mechanism are used to limit the travel of the first clamp 200 relative to the frame 100 along the first direction X. This helps prevent the first clamp 200 from exceeding the preset position when moving back and forth between the first position and the second position, thereby improving safety.
[0051] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0052] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.
Claims
1. A sealing test device, characterized in that: The sealing test device comprises: frame; a first fixture, the first fixture being used for loading and unloading a workpiece to be measured and being movably connected to the frame along a first direction; a second clamp, the second clamp being movably connected to the frame along a second direction, the first clamp having a first electrical interface, the second clamp having a second electrical interface, the first direction and the second direction intersecting, such that the second clamp and the first clamp can move relative to the frame until they engage with each other to fix the workpiece, and when the first clamp and the second clamp engage with each other, the first electrical interface engages with the second electrical interface; A leak detection mechanism, used for performing a leak detection on the workpiece; A control mechanism, wherein the control mechanism is in conduction with the second electrical interface, and the leakage detection mechanism is in conduction with the first electrical interface. When the first electrical interface is engaged with the second electrical interface, the control mechanism is used to supply air and electricity to the leakage detection mechanism radially through the conductive path between the second electrical interface and the first electrical interface.
2. The sealing test device according to claim 1, characterized in that: The first clamp includes a detachably connected support plate and a first clamping plate, and the support plate is movably connected to the frame along the first direction. The second clamp includes a detachably connected top plate and a second clamping plate, and the top plate is movably connected to the frame along the second direction. The first clamping plate and the second clamping plate can be engaged to fix the workpiece.
3. The sealing test device according to claim 2, characterized in that: The sealing test device further includes a transfer trolley, which is detachably connected to the frame and is used to support the first clamping plate that is detached from the support plate.
4. The sealing test device according to claim 3, characterized in that: The transfer trolley is used to support the surface of the first clamping plate and is provided with a first guide bar, and the frame is provided with a second guide bar. The first guide bar and the second guide bar can be spliced and extend along the first direction. The side edge of the first clamping plate can abut and move away from the support plate relative to the first guide bar and the second guide bar along the first direction.
5. The sealing test device according to claim 4, characterized in that: The support plate is provided with a positioning structure, and the positioning structure is used for clamping and fixing the first clamping plate.
6. The sealing test device according to claim 4, characterized in that: The support plate is fixedly provided with a driver, which is connected to the first clamping plate and is used to push the first clamping plate to separate from the support plate along the first direction.
7. The sealing test device according to claim 2, characterized in that: The second clamping plate includes a base plate and at least two positioning blocks, each of the positioning blocks is arranged on a side surface of the base plate facing the top plate, and the top plate has at least two positioning grooves, each of the positioning grooves can be engaged with each of the positioning blocks in a one-to-one correspondence.
8. The sealing test device according to claim 1, characterized in that: The frame is also provided with a first in-position sensor and a second in-position sensor, which are arranged on the frame and are used to respectively detect in-position signals of the first fixture moving to a first position and a second position relative to the frame along the first direction. When the first fixture moves to the first position, it can load and unload the workpiece. When the first fixture drives the workpiece to move to the second position, the second fixture can move along the second direction until the first electrical interface and the second electrical interface are engaged.
9. The sealing test device according to claim 1, characterized in that: The second fixture is further connected to an in-position sensor. When the second fixture is engaged with the first fixture and fixes the workpiece, the in-position sensor is used to detect the in-position status of the workpiece in the first fixture.
10. The sealing test device according to any one of claims 1 to 9, characterized in that: The first direction and the second direction are perpendicular to each other.