An opening and closing cover mechanism for airtightness detection

Abstract

The present application relates to the technical field of ultrasonic scanning detection, and in particular to a cover opening and closing mechanism for airtightness detection, comprising a bracket, a lower template being provided on the bracket, an upper template being provided on the lower template, a plurality of clips for connecting to the upper template being evenly provided on the side of the lower template, a plurality of slots corresponding to and cooperating with the clips being provided on the upper template, a hydraulic cylinder being further provided on the bracket above the upper template, the output shaft of the hydraulic cylinder being vertically downward and the end of which is connected to a pressure plate facing the upper template, two clamping plates for taking and placing the upper template being slidably connected on both sides of the pressure plate, the lower end of the clamping plate being located below the pressure plate, and the clamping plates being located on both sides of the upper template. The hydraulic mechanism such as the pressure plate and the hydraulic cylinder can achieve mechanized opening and closing of the cover, thereby ensuring the installation quality of the upper and lower templates.

Description

Technical Field

[0001] The present application relates to the technical field of ultrasonic scanning detection, and in particular to an opening and closing cover mechanism for airtight detection. Background Art

[0002] Power modules are primarily used to monitor the active power of generators, ensuring reverse power protection when paralleling generator sets and connecting to the grid, preventing equipment damage or safety incidents caused by reverse power. Ultrasonic microscopy (SAT, Scanning Acoustic Tomography; also known as C-SAM, C-mode Scanning Acoustic Microscope) uses high-frequency ultrasonic waves to detect differences in reflection rate and energy between materials of varying densities. It is widely used in the back-end of power module manufacturing for testing.

[0003] Ultrasonic microscopy requires water as a medium for flaw detection on HPDs. However, moisture on the power module chip surface can easily cause short circuits. Therefore, the HPD must be sealed prior to ultrasonic testing, with only the surface exposed for inspection.

[0004] During testing, the power module is typically clamped and sealed between upper and lower templates before undergoing an airtight test. To ensure the accuracy of the airtight test, the connection between the upper and lower templates must be sufficiently stable to prevent separation during the pressurization process, which could affect the test and safety.

[0005] The installation of existing upper and lower templates is usually done manually, and the quality of the installation is difficult to guarantee, which affects the airtightness test. Summary of the Invention

[0006] In order to improve the installation quality, the present application provides an opening and closing cover mechanism for airtightness detection.

[0007] The present application provides an opening and closing cover mechanism for airtightness detection using the following technical solutions:

[0008] A cover opening and closing mechanism for airtightness detection includes a bracket, a lower template is provided on the bracket, an upper template is provided on the lower template, a number of clips for connecting to the upper template are evenly provided on the side of the lower template, a number of slots corresponding to and cooperating with the clips are provided on the upper template, and a hydraulic cylinder is also provided on the bracket above the upper template, the output shaft of the hydraulic cylinder is vertically downward and the end is connected to a pressure plate facing the upper template, two clamping plates for taking and placing the upper template are slidably connected on both sides of the pressure plate, the lower end of the clamping plate is located below the pressure plate, and the clamping plates are located on both sides of the upper template.

[0009] By adopting the above technical solution, the lower template is positioned below the bracket. When closing the lid, the upper template is positioned below the pressure plate, with two clamping plates clamped on either side of the upper template. The hydraulic cylinder is activated, and the pressure plate drives the upper template downward until the upper template is pressed on top of the lower template, and the clips are embedded in the slots, thereby securing the upper and lower templates. When opening the lid, the pressure plate presses down on top of the upper template, and the clips are released from the slots. The clamping plates clamp on either side of the upper template, and the pressure plate is lifted to separate the upper and lower templates, completing the lid opening. The hydraulic mechanism, including the pressure plate and hydraulic cylinder, enables mechanized lid opening and closing, thus ensuring the installation quality of the upper and lower templates.

[0010] Preferably, a rotating shaft rotatably connected to the lower template is fixed on the buckle, and a torsion spring is provided between the rotating shaft and the lower template. When the torsion spring is in a natural state, the buckle is in a vertical state, a rotating groove is provided on the lower template, the rotating shaft is located above the rotating groove, and the lower end of the buckle is movably connected in the rotating groove.

[0011] By adopting the above technical solution, the operator presses the lower end of the buckle, and the buckle overcomes the torsion of the torsion spring and rotates with the rotating shaft as the fulcrum, so that the upper end of the buckle opens outward, realizing the separation of the buckle and the slot.

[0012] Preferably, the bracket is horizontally rotatably connected to an extrusion cylinder that is opposite to the lower end of the buckle, the internal thread of the extrusion cylinder is connected to an extrusion rod that slides in the extrusion cylinder, the bracket is vertically slidably connected to a vertical rack, the upper end of the vertical rack is higher than the upper surface of the lower template, a vertical spring is provided between the lower end of the vertical rack and the bracket, and the outer wall of the extrusion cylinder is coaxially fixedly connected to an extrusion gear that meshes with the vertical rack.

[0013] By adopting the above technical solution, when closing the cover, the pressure plate is pressed down. Before the upper template contacts the lower template, the pressure plate contacts the vertical rack to press the vertical rack downward. The vertical rack drives the extrusion cylinder to rotate through the extrusion gear. The extrusion cylinder drives the extrusion rod to extend from the extrusion cylinder through the thread. The extrusion rod contacts the lower end of the buckle, so that the upper end of the buckle opens outward, which is convenient for the installation of the upper template.

[0014] Preferably, a trigger block is horizontally slidably connected to the pressure plate, a trigger hole is vertically arranged on the trigger block and matched with the vertical rack, a trigger rod is vertically provided on the bracket, the upper end of the trigger rod is conically arranged, the trigger block and the pressure plate are connected by a transverse spring, when the transverse spring is in a natural state, the trigger block is opposite to the vertical rack, and the trigger rod is opposite to the end of the trigger block close to the trigger hole.

[0015] By adopting the above technical solution, when closing the lid, the pressure plate is pressed down, and the trigger block presses down the vertical rack, which eventually drives the upper end of the buckle to open outward. The pressure plate continues to press down until the upper template collides with the lower template. At this time, the trigger rod collides with the end of the trigger block and squeezes the trigger block. The trigger block is squeezed by the trigger rod and moves laterally, causing the trigger hole to face the vertical rack. The vertical rack moves upward under the action of the vertical spring and is inserted into the trigger hole. During the upward movement of the vertical rack, the extrusion cylinder rotates in the opposite direction, the extrusion rod retracts into the extrusion cylinder, and the buckle is reset to a vertical state under the action of the torsion spring. The upper end of the buckle is embedded in the slot, thereby fixing the upper template and the lower template. During the closing process, the buckle can automatically open and close when the pressure plate moves downward, thereby fixing the upper template and the lower template, which is convenient to use.

[0016] Preferably, the trigger rod is vertically slidably connected to the bracket, an opening and closing cylinder is vertically provided on the bracket, the trigger rod is fixed on the output shaft of the opening and closing cylinder, a vertical strip groove is provided on the vertical rack, and a connecting rod passing through the strip groove is fixed on the trigger rod.

[0017] By adopting this technical solution, when closing the lid, the output shaft of the opening and closing cylinder rises. When the pressure plate is pressed downward, the trigger rod contacts the trigger block. When opening the lid, the output shaft of the opening and closing cylinder descends, and the trigger rod follows suit. This, in turn, drives the vertical rack downward via the connecting rod, causing the upper end of the buckle to open outward and disengage from the slot, facilitating the removal of the upper template and opening the lid. The raising and lowering of the output shaft of the opening and closing cylinder switches the device between opening and closing modes, providing ease of use.

[0018] Preferably, the clamping plate includes a vertical plate arranged vertically and a horizontal plate arranged horizontally, the vertical plate includes an upper plate and a lower plate, a buffer spring is connected between the upper plate and the lower plate, and the horizontal plate is connected to the lower end of the lower plate and is located below the pressure plate.

[0019] By adopting the above technical solution, the pressure plate drives the upper template to press down. During the pressing process, the upper end of the buckle opens outward until the upper template contacts the lower template. At this time, the pressure plate continues to press down, the buffer spring is squeezed, and the trigger rod collides with the trigger block. The trigger block moves horizontally, the vertical rack penetrates into the trigger hole, and the buckle is buckled in the slot to achieve closing. The buffer spring buffers the upper template to prevent the pressure of the pressure plate on the upper template from being too high.

[0020] Preferably, the upper surface of the pressure plate is rotatably connected to a clamping screw, and the clamping screw is provided with two sections of threads with opposite rotation directions. The two sections of threads are located at both ends of the clamping screw and are respectively connected to a nut seat, and the upper ends of the two upper plates are respectively connected to the two nut seats.

[0021] By adopting the above technical solution, the clamping screw rotates, and the two nut seats drive the two clamping plates to move toward or away from each other synchronously, thereby realizing the grasping and releasing of the upper template.

[0022] Preferably, a concave clamping groove is provided on the side of the upper template, and a clamping block that matches the clamping groove is fixed on the clamping plate.

[0023] By adopting the above technical solution, when the clamping plate clamps the upper template, the clamping block is inserted into the clamping groove, thereby enhancing the clamping effect of the clamping plate on the clamping block and improving stability.

[0024] In summary, this application has the following beneficial technical effects:

[0025] 1. The mechanized opening and closing of the cover can be achieved through hydraulic mechanisms such as pressure plates and hydraulic cylinders, thereby ensuring the installation quality of the upper and lower templates. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of the bracket in the embodiment;

[0027] Figure 2 This is a schematic diagram of the structure after the upper template and the lower template are closed in the embodiment;

[0028] Figure 3 This is a schematic diagram of the connection between the buckle and the lower template in the embodiment;

[0029] Figure 4 2 is a schematic diagram of the connection between the vertical rack and the base in the embodiment;

[0030] Figure 5 This is a schematic diagram of the connection between the trigger block and the pressure plate.

[0031] Description of reference numerals:

[0032] 1. Bracket; 11. Base; 12. Top plate; 21. Upper template; 211. Slot; 212. Clamping slot; 22. Lower template; 221. Rotating slot; 23. Buckle; 231. Rotating shaft; 232. Torsion spring; 3. Hydraulic cylinder; 4. Press plate; 41. Clamping screw; 42. Nut seat; 5. Clamping plate; 51. Vertical plate; 511. Upper plate; 512. Lower plate; 513. Buffer spring; 52. Horizontal plate; 521. Clamping block; 61. Extrusion cylinder; 62. Extrusion rod; 63. Vertical rack; 631. Strip groove; 64. Vertical spring; 65. Extrusion gear; 66. Trigger rod; 661. Connecting rod; 67. Opening and closing cylinder; 7. Trigger block; 71. Trigger hole; 72. Horizontal spring. DETAILED DESCRIPTION

[0033] The present application is further described in detail below in conjunction with all the accompanying drawings. Example

[0034] The embodiment of the present application discloses an opening and closing cover mechanism for airtight detection, referring to Figure 1 and Figure 2 , including a bracket 1, an upper template 21 and a lower template 22. The power module is installed between the upper template 21 and the lower template 22, and the upper template 21 and the lower template 22 are assembled or disassembled on the bracket 1.

[0035] Reference Figure 2 and Figure 3 The upper and lower templates 21 and 22 are connected by snaps 23. The horizontal projections of the upper and lower templates 21 and 22 form a square, with at least one snap 23 positioned on each of the four sides of the lower template 22. A rotational axis 231 is fixed in the middle of the snaps 23, which is rotationally connected to the lower template 22. A torsion spring 232 is positioned between the rotational axis 231 and the lower template 22. When the torsion spring 232 is in its neutral position, the snaps 23 are in a vertical position.

[0036] Reference Figure 2 and Figure 3 The lower template 22 has a rotation slot 221 that faces the lower end of the buckle 23. The lower end of the buckle 23 is movable within the rotation slot 221. When the lower end of the buckle 23 rotates about the rotation axis 231 toward the inside of the rotation slot 221, the upper end of the buckle 23 moves outward to open. The upper template 21 has a plurality of slots 211 on its upper surface that correspond to the buckles 23. When the upper end of the buckle 23 is inserted into the slot 211, the upper template 21 and the lower template 22 are locked and fixed.

[0037] Reference Figure 1 and Figure 2 The bracket 1 includes a base 11 and a top plate 12 located substantially above the base 11. The lower template 22 is placed on the base 11. A vertically arranged hydraulic cylinder 3 is mounted on the top plate 12. The lower end of the hydraulic cylinder 3 passes through the top plate 12 and is fixed with a pressure plate 4. The upper template 21 is mounted on the lower surface of the pressure plate 4. The output shaft of the hydraulic cylinder 3 is extended and retracted to drive the upper template 21 to move up and down, realizing closing and opening of the lid.

[0038] Reference Figure 1 and Figure 2 The upper surface of the pressure plate 4 is rotatably connected to a clamping screw 41. The clamping screw 41 has two sections of threaded threads with opposite rotation directions. The two sections of threaded threads are located at either end of the clamping screw 41 and are connected to a nut holder 42. Each nut holder 42 is connected to a clamping plate 5. The clamping plate 5 comprises a vertical riser 51 and a horizontal cross plate 52. The upper end of the riser 51 is fixedly connected to the nut holder 42, while the lower end of the riser 51 is located below the pressure plate 4 and is fixedly connected to the cross plate 52. The rotation of the clamping screw 41 synchronously drives the two clamping plates 5 to move toward or away from each other, and the two cross plates 52 clamp or release the upper template 21.

[0039] Reference Figure 1 and Figure 2 The side of the upper template 21 is provided with a concave clamping groove 212, and the end of the horizontal plate 52 is fixed with a clamping block 521 that matches the clamping groove 212. When the horizontal plate 52 clamps the upper template 21, the clamping block 521 is inserted into the clamping groove 212 to improve the stability of the clamping.

[0040] Reference Figure 1 and Figure 2 The vertical plate 51 includes an upper plate 511 and a lower plate 512, and a buffer spring 513 is connected between the upper plate 511 and the lower plate 512. When the pressing plate 4 drives the upper template 21 to press down, the buffer spring 513 buffers the upper template 21 to prevent excessive pressure from damaging the upper template 21 or the lower template 22.

[0041] Reference Figure 2 and Figure 4 An extrusion cylinder 61 is horizontally and rotatably connected to the base 11, facing the lower end of the buckle 23. An extrusion rod 62 is threadedly connected to the extrusion cylinder 61 and slides within the extrusion cylinder 61. As the extrusion cylinder 61 rotates, the extrusion rod 62 telescopes along the axis of the extrusion cylinder 61. The extrusion rod 62 extends from the extrusion cylinder 61 and squeezes the lower end of the buckle 23, forcing the lower end of the buckle 23 toward the interior of the rotation groove 221. The buckle 23 rotates about the rotation axis 231, thereby driving the upper end of the buckle 23 to move outward and open, thereby facilitating the installation of the upper template 21.

[0042] Reference Figure 2 and Figure 4 A vertical rack 63 is vertically slidably connected to the base 11. The upper end of the vertical rack 63 is higher than the upper surface of the lower mold plate 22. An extrusion gear 65 is coaxially fixedly connected to the outer wall of the extrusion barrel 61 and meshes with the vertical rack 63. When the vertical rack 63 moves downward, the extrusion gear 65 rotates, driving the extrusion barrel 61 to rotate, and driving the extrusion rod 62 to extend from the extrusion barrel 61 to press the lower end of the buckle 23, ultimately driving the upper end of the buckle 23 to open outward.

[0043] Reference Figure 2 and Figure 4 A vertical spring 64 is provided between the lower end of the vertical rack 63 and the base 11 . When the vertical spring 64 is in a natural state, the vertical rack 63 is at the highest point, and at this time, the extrusion rod 62 is retracted into the extrusion cylinder 61 .

[0044] Reference Figures 1 to 5A trigger block 7 is horizontally slidably connected to the pressure plate 4. The trigger block 7 and the pressure plate 4 are connected by a transverse spring 72. When the transverse spring 72 is in its natural position, the trigger block 7 is aligned with the vertical rack 63. As the pressure plate 4 is pressed downward, the trigger block 7 contacts and presses the vertical rack 63 downward, gradually opening the upper end of the latch 23. The pressure plate 4 continues to press downward until the upper mold plate 21 is pressed against the lower mold plate 22.

[0045] Reference Figures 1 to 5 The trigger block 7 is provided with a vertical trigger hole 71, which mates with the vertical rack 63. A vertical trigger rod 66 is provided on the base 11. The upper end of the trigger rod 66 is tapered. When the vertical spring 64 is in its natural position, the upper end of the vertical rack 63 is higher than the upper end of the trigger rod 66. When the transverse spring 72 is in its natural position, the trigger rod 66 is aligned with the end of the trigger block 7 near the trigger hole 71.

[0046] Reference Figures 1 to 5 When the pressure plate 4 is pressed down until the upper template 21 presses on the lower template 22, the upper end of the buckle 23 is still in the open state. The pressure plate 4 continues to press down, the buffer spring 513 is compressed, and the upper template 21 no longer moves downward, but the pressure plate 4 continues to move downward. Until the trigger rod 66 contacts the trigger block 7, the trigger block 7 continues to move downward, the trigger rod 66 squeezes the trigger block 7, the transverse spring 72 is stretched, the trigger block 7 moves laterally, and the trigger hole 71 moves toward the vertical rack 63 until the trigger hole 71 is directly opposite the vertical rack 63. At this time, the vertical rack 63 rises and resets under the action of the vertical spring 64, the extrusion rod 62 retracts into the extrusion cylinder 61, and the buckle 23 is reset to the vertical state under the action of the torsion spring 232. The upper end of the buckle 23 is embedded in the slot 211 of the upper template 21, thereby fixing the upper template 21 and the lower template 22, completing the cover.

[0047] Reference Figures 1 to 5 An opening and closing cylinder 67 is vertically mounted on the base 11. A trigger rod 66 is fixed to the output shaft of the opening and closing cylinder 67. A vertical strip groove 631 is formed on the vertical rack 63. A connecting rod 661 is fixed to the trigger rod 66 and extends through the strip groove 631. When the output shaft of the opening and closing cylinder 67 is in the extended state and the vertical spring 64 is in the natural state, the connecting rod 661 contacts the lower end of the strip groove 631.

[0048] Reference Figures 1 to 5When the output shaft of the opening and closing cylinder 67 is in the extended state, the trigger rod 66 is in the closed state and can contact the trigger block 7, thereby ultimately driving the upper template 21 and the lower template 22 to engage the buckle 23 after installation. When the output shaft of the opening and closing cylinder 67 is in the retracted state, the trigger rod 66 moves downward and drives the vertical rack 63 to move downward synchronously through the connecting rod 661. The vertical rack 63 is always in the lower position, ultimately causing the upper end of the buckle 23 to be in the open state, thereby facilitating the separation of the upper template 21 and the lower template 22 and realizing the opening of the cover.

[0049] The implementation principle of the opening and closing cover mechanism for airtightness detection in the embodiment of the present application is as follows: when closing the cover, the output shaft of the opening and closing cylinder 67 is in an extended state. The lower template 22 is placed on the base 11, the upper template 21 is installed below the pressure plate 4, and the clamping plate 5 clamps the upper template 21. The hydraulic cylinder 3 is started, the pressure plate 4 drives the upper template 21 to press down, the vertical rack 63 contacts the trigger block 7, and the upper end of the buckle 23 opens outward. The pressure plate 4 continues to press down until the upper template 21 presses on the lower template 22. The pressure plate 4 continues to press down, the buffer spring 513 is compressed, the trigger block 7 contacts the trigger rod 66, the trigger block 7 is pushed, the vertical rack 63 is inserted into the trigger hole 71 under the action of the vertical spring 64, the buckle 23 is buckled inward, and the cover is closed. The clamping plate 5 releases the upper template 21, the hydraulic cylinder 3 contracts, and the pressure plate 4 moves up and resets.

[0050] When opening the cover, the upper template 21 and the lower template 22 that are buckled together are placed on the base 11, the output shaft of the opening and closing cylinder 67 moves downward and is in a retracted state, the vertical rack 63 moves downward synchronously, the upper end of the buckle 23 opens outward, and the pressing plate 4 moves downward until the cross plate 52 is opposite to the upper template 21. The cross plate 52 clamps the upper template 21, the pressing plate 4 is lifted, the upper template 21 and the lower template 22 are separated, and the cover is opened.

[0051] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A cover opening and closing mechanism for airtightness detection, characterized in that: The invention comprises a bracket (1), wherein a lower template (22) is provided on the bracket (1), an upper template (21) is provided on the lower template (22), a plurality of buckles (23) for connecting with the upper template (21) are evenly provided on the side of the lower template (22), a plurality of slots (211) corresponding to and matching the buckles (23) are opened on the upper template (21), and a hydraulic cylinder (3) located above the upper template (21) is also provided on the bracket (1), the output shaft of the hydraulic cylinder (3) is vertically downward and the end thereof is connected to a pressing plate (4) facing the upper template (21), two clamping plates (5) for taking and placing the upper template (21) are slidably connected on both sides of the pressing plate (4), the lower end of the clamping plate (5) is located below the pressing plate (4), and the clamping plates (5) are located on both sides of the upper template (21); The bracket (1) is horizontally rotatably connected to an extrusion cylinder (61) that is opposite to the lower end of the buckle (23); the extrusion cylinder (61) is internally threadedly connected to an extrusion rod (62) that slides in the extrusion cylinder (61); the bracket (1) is vertically slidably connected to a vertical rack (63); the upper end of the vertical rack (63) is higher than the upper surface of the lower template (22); a vertical spring (64) is provided between the lower end of the vertical rack (63) and the bracket (1); the outer wall of the extrusion cylinder (61) is coaxially fixedly connected to an extrusion gear (65) that meshes with the vertical rack (63); A trigger block (7) is horizontally slidably connected to the pressure plate (4), and a trigger hole (71) is vertically provided on the trigger block (7) and matched with the vertical rack (63). A trigger rod (66) is vertically provided on the bracket (1), and the upper end of the trigger rod (66) is conical. The trigger block (7) and the pressure plate (4) are connected via a transverse spring (72). When the transverse spring (72) is in a natural state, the trigger block (7) is opposite to the vertical rack (63), and the trigger rod (66) is opposite to the end of the trigger block (7) close to the trigger hole (71).

2. The airtightness detection cover opening and closing mechanism according to claim 1, characterized in that: A rotating shaft (231) rotatably connected to the lower template (22) is fixed on the buckle (23); a torsion spring (232) is provided between the rotating shaft (231) and the lower template (22); when the torsion spring (232) is in a natural state, the buckle (23) is in a vertical state; a rotating groove (221) is provided on the lower template (22); the rotating shaft (231) is located above the rotating groove (221); and the lower end of the buckle (23) is movably connected in the rotating groove (221).

3. The airtightness detection cover opening and closing mechanism according to claim 1, characterized in that: The trigger rod (66) is vertically slidably connected to the bracket (1); an opening and closing cylinder (67) is vertically provided on the bracket (1); the trigger rod (66) is fixed to the output shaft of the opening and closing cylinder (67); a vertical strip groove (631) is provided on the vertical rack (63); and a connecting rod (661) is fixed on the trigger rod (66) and is inserted into the strip groove (631).

4. The airtightness detection cover opening and closing mechanism according to claim 3, characterized in that: The clamping plate (5) includes a vertical plate (51) and a horizontal plate (52), wherein the vertical plate (51) includes an upper plate (511) and a lower plate (512), a buffer spring (513) is connected between the upper plate (511) and the lower plate (512), and the lower ends of the horizontal plate (52) and the lower plate (512) are connected and located below the pressure plate (4).

5. The airtightness detection cover opening and closing mechanism according to claim 4, characterized in that: The upper surface of the pressure plate (4) is rotatably connected to a clamping screw (41), and the clamping screw (41) is provided with two sections of threads with opposite rotation directions. The two sections of threads are located at both ends of the clamping screw (41) and are respectively connected to a nut seat (42). The upper ends of the two upper plates (511) are respectively connected to the two nut seats (42).

6. The airtightness detection cover opening and closing mechanism according to claim 1, characterized in that: A concave clamping groove (212) is provided on the side of the upper template (21), and a clamping block (521) matching the clamping groove (212) is fixed on the clamping plate (5).

Images