Quick die change device dedicated to airtightness detection equipment

Abstract

The present application relates to a rapid die-changing device dedicated to an airtightness detection device, which includes a die, an airtightness detection mechanism, a fixing mechanism and a base. The airtightness detection mechanism and the fixing mechanism are arranged on the base. The die is provided with a detection groove for placing an article to be detected. The airtightness detection mechanism is used to seal the detection groove and inflate or deflate the detection groove. The fixing mechanism includes a support seat, two propulsion components and two fixing components. The support seat is movably arranged on the base, and the die is placed on the support seat. The two propulsion components are respectively arranged on both sides of the bottom of the support seat and can drive the support seat to move upward. The two fixing components are respectively arranged on both sides of the top edge of the support seat and can fix the die on the support seat. When the propulsion component drives the support seat to move upward, the propulsion component simultaneously drives the fixing component to move away from the die to loosen the die. When the propulsion component moves away from the support seat, the support seat moves downward by its own gravity, and the propulsion component simultaneously drives the fixing component to fix the die. This enables the operator to quickly fix or replace the die, realizes the automatic replacement of the die, shortens the die-changing time, and reduces the working intensity of the operator.

Description

Technical Field

[0001] The present application relates to the technical field of airtightness detection, and particularly to a quick die-changing device dedicated to airtightness detection equipment. Background Art

[0002] Airtightness detection equipment is widely used in the field of detecting the sealing performance of products, such as production industries of automotive parts, electronic products, medical devices, and household appliances. Such equipment performs a sealing test on the item to be tested through specific molds or jigs to ensure that the product has good airtight performance during use. However, due to the different shapes, sizes, and sealing requirements of the items to be tested, the equipment usually needs to have a flexible die-changing function to meet diverse detection needs. Therefore, the die-changing device has become an essential part of airtightness detection equipment.

[0003] Some die-changing devices dedicated to airtightness detection equipment adopt a mold detection groove structure. The mold detection groove is used to place the item to be tested, and it is pressed against the mold by a lifting mechanism to ensure a seal is formed between the item and the mold. During the test, the airtightness detection mechanism inflates or deflates the detection groove to determine whether there is leakage in the item to be detected. This detection method does not require inserting the airtightness detection mechanism into specific holes of the item to be detected. Instead, it can directly place it in the mold detection groove to complete the seal detection. For example, rubber strips for car windows, doors, or engine hoods are tested for integrity to ensure the isolation performance of water vapor and airflow. Another example is the casings of small devices such as smart watches and Bluetooth headsets, where the sealing performance is tested to ensure that their waterproof performance meets the standards.

[0004] Due to the wide variety and different sizes of the items to be tested, when the item is large, it may not be able to fit into the detection groove of the mold; when the item is small, although it can fit in, if the size of the detection groove is too large, the inflation or deflation time required will be prolonged, and the detection accuracy requirements will increase accordingly. Therefore, to ensure the efficiency and accuracy of the detection, the size of the detection groove on the mold needs to be changed according to the size of the item to be detected to match the shape and size of the product. However, in the existing die-changing devices, during the process of fixing or loosening the mold, traditional manual operations or simple mechanical mechanisms are mostly used, and this method requires a long replacement time. This defect will be particularly prominent in a production environment with multiple varieties and small batches, which not only limits the flexibility of the production line but also significantly increases the production cost and operation risk.

[0005] Therefore, there is an urgent need to propose a quick die-changing device dedicated to airtightness detection equipment to improve the efficiency of fixing or loosening the mold in the detection process of items to be tested with multiple specifications by the existing equipment, thereby improving the efficiency of changing the mold. Summary of the Invention

[0006] The purpose of this application is to overcome the deficiencies in the prior art and to propose a quick mold changing device dedicated to airtightness testing equipment to solve the problem of low efficiency in mold fixing or loosening of the existing mold changing device during the testing of multiple specifications of objects to be tested, thereby improving the efficiency of mold replacement.

[0007] This application is implemented through the following technical solutions:

[0008] The present application proposes a quick mold changing device dedicated to an airtightness testing device, comprising a mold, an airtightness testing mechanism, a fixing mechanism and a base, wherein the airtightness testing mechanism and the fixing mechanism are arranged on the base, the mold is provided with a testing groove for placing an object to be tested, the airtightness testing mechanism is used to seal the testing groove and inflate or exhaust air into the testing groove, and the fixing mechanism comprises:

[0009] A support seat, movably disposed on the base, and the mold is placed on the support seat;

[0010] Two propulsion assemblies are respectively arranged on both sides of the bottom of the support base, and can drive the support base to move upward;

[0011] Two fixing components, respectively arranged on both sides of the top edge of the support base, can fix the mold on the support base;

[0012] When the propulsion assembly drives the support seat to move upward, the propulsion assembly simultaneously drives the fixing assembly to move away from the mold to release the mold;

[0013] When the propulsion assembly moves in a direction away from the support seat, the support seat moves downward by its own gravity, and the propulsion assembly drives the fixing assembly to fix the mold at the same time.

[0014] In one embodiment of the present application, each of the propulsion components comprises:

[0015] A motor, arranged on the base;

[0016] A first screw rod, which is axially connected to the rotating shaft of the motor;

[0017] A propulsion block, threadedly connected to the first screw rod, the propulsion block is slidably connected to the base, and a first inclined surface is provided on a side of the propulsion block close to the support seat;

[0018] A second inclined surface matched with the first inclined surface is provided on one side of the bottom of the support seat close to the propulsion block, and the first inclined surface is in contact with and parallel to the second inclined surface;

[0019] When the motor drives the first lead screw to rotate forward, the first lead screw drives the pushing block to move towards the support base, and the first inclined surface squeezes the second inclined surface in the horizontal direction, causing the support base to move upward and driving the fixing component to release the mold;

[0020] When the motor drives the first lead screw to rotate reversely, the first lead screw drives the pushing block to move away from the support base, the support base moves downward by its own gravity, and the fixing component synchronously fixes the mold, thereby fixing the mold on the support base.

[0021] In an embodiment of the present application, each of the fixing components includes:

[0022] A second lead screw, which is in transmission connection with the first lead screw, and the second lead screw and the first lead screw are arranged along the same axis;

[0023] A sliding block, which is threadedly connected to the second lead screw, and the sliding block is slidably connected to the base;

[0024] A clamping block, which is rotatably connected to the base;

[0025] A connecting rod, one end of which is rotatably connected to the sliding block, and the other end of which is rotatably connected to the clamping block;

[0026] When the first lead screw drives the second lead screw to rotate forward synchronously, the second lead screw drives the sliding block to move towards the mold, causing the sliding block to push the connecting rod forward, causing the clamping block to rotate relative to the base, and the clamping block rotates away from the mold, thereby releasing the mold;

[0027] When the first lead screw drives the second lead screw to rotate reversely synchronously, the sliding block moves away from the mold, causing the connecting rod to drive the clamping block to rotate relative to the base, and the clamping block rotates towards the mold, causing the clamping block to clamp the mold, thereby fixing the mold on the support base.

[0028] In an embodiment of the present application, each of the fixing components includes a synchronous belt. The first lead screw and the second lead screw are both rotatably connected to the base. The first lead screw and the second lead screw are both provided with teeth, and the synchronous belt surrounds the teeth of the first lead screw and the teeth of the second lead screw;

[0029] When the first lead screw rotates, the first lead screw drives the second lead screw to rotate synchronously through the synchronous belt.

[0030] In an embodiment of the present application, each of the propulsion components includes a sliding wheel, which is rotatably connected to the first inclined surface and can roll along the extension direction of the first lead screw;

[0031] When the first inclined surface squeezes the second inclined surface in the horizontal direction, the sliding wheel rolls on the first inclined surface, causing the second inclined surface to push the support base upward;

[0032] When the first inclined surface moves away from the second inclined surface in the horizontal direction, the sliding wheel rolls in the opposite direction of the first inclined surface, causing the support base to move downward under the action of gravity.

[0033] In an embodiment of the present application, a clamping portion is provided at one end of the clamping block away from the connecting rod, and a clamping groove is formed at the edge of the top of the mold;

[0034] When the clamping block rotates towards the mold, the clamping portion is engaged with the clamping groove, thereby firmly fixing the mold on the support base;

[0035] When the clamping block rotates away from the mold, the clamping portion is disengaged from the clamping groove, releasing the mold for quick replacement of the mold.

[0036] In an embodiment of the present application, an avoidance groove is formed at one end of the clamping block close to the connecting rod to prevent interference with the connecting rod during the rotation of the clamping block.

[0037] In an embodiment of the present application, a first abutting surface is provided at the position of the avoidance groove of the clamping block, and a second abutting surface is provided on the connecting rod;

[0038] When the sliding block pushes the connecting rod forward, the clamping block rotates away from the mold, causing the first abutting surface to fit with the second abutting surface.

[0039] In an embodiment of the present application, a positioning groove is formed at the bottom of the support base, and a positioning portion is provided on the base, and the positioning portion extends into the positioning groove to limit and guide the position of the support base;

[0040] Support portions for supporting the mold are provided on both sides of the support base, and a plurality of ventilation holes are formed in the support base in the vertical direction;

[0041] When the mold is placed on the support base, a gap is provided between the mold and the orifice of each ventilation hole facing the mold, so as to reduce air resistance and improve the efficiency of movement when the support base moves upward or downward.

[0042] In an embodiment of the present application, the airtightness detection mechanism includes:

[0043] A lifting mechanism, disposed on the base;

[0044] A pressing plate, disposed on the lifting mechanism, and an air hole is opened on the pressing plate;

[0045] An airtightness detection head, disposed in the air hole, and sealing the orifice of the air hole facing the airtightness detection head;

[0046] When the lifting mechanism drives the pressing plate to press down the mold, the pressing plate fits with the mold. At the same time, the air hole is communicated with the detection groove, and the airtightness detection head inflates or deflates the detection groove through the air hole to detect the airtightness of the article to be tested;

[0047] When the lifting mechanism drives the pressing plate to move upward, the pressing plate is separated from the mold, and the air hole is disconnected from the detection groove.

[0048] Compared with the prior art, the beneficial effects of the present application are:

[0049] The airtightness detection mechanism and the fixing mechanism are disposed on the base. The mold is provided with a detection groove for placing the article to be tested. The fixing mechanism includes a support seat, two propulsion components and two fixing components. The support seat is movably disposed on the base, and the mold is placed on the support seat; the two propulsion components are respectively disposed on both sides of the bottom of the support seat and can drive the support seat to move upward; the two fixing components are respectively disposed on both sides of the top edge of the support seat and can fix the mold on the support seat; when the propulsion component drives the support seat to move upward, the propulsion component simultaneously drives the fixing component to move away from the mold to loosen the mold; when the propulsion component moves away from the support seat, the support seat moves downward by its own gravity, and the propulsion component simultaneously drives the fixing component to fix the mold. The fixing mechanism, through the cooperation of the electric propulsion component and the fixing component, makes the mold rise and loosen, and fall and fix, improving the efficiency of mold replacement, enabling the operator or equipment to quickly fix or replace the mold, realizing the automatic replacement of the mold, shortening the mold change time, and reducing the working intensity of the operator.

[0050] Other features and advantages of the present application will be described in the subsequent specification, and, in part, will be obvious from the specification, or will be understood by implementing the present application. The objectives and other advantages of the present application can be achieved and obtained through the structures pointed out in the specification, the claims, and the drawings. Description of the Drawings

[0051] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0052] Figure 1 Stereogram of a quick die-changing device dedicated to an airtightness detection device provided for an embodiment;

[0053] Figure 2 Front view of a quick die-changing device dedicated to an airtightness detection device provided for an embodiment;

[0054] Figure 3 Side view of a quick die-changing device dedicated to an airtightness detection device provided for an embodiment;

[0055] Figure 4 For Figure 3 Cross-sectional view of the P-P part of;

[0056] Figure 5 Stereogram of a mold, an airtightness detection mechanism and a fixing mechanism provided for an embodiment;

[0057] Figure 6 Stereogram of a mold and a fixing mechanism provided for an embodiment;

[0058] Figure 7 Stereogram of a fixing mechanism on one side provided for an embodiment;

[0059] Figure 8 For Figure 3 Cross-sectional view of the P-P part of (only showing the fixing mechanism on one side, and the clamping part of the clamping block and the card slot of the mold are in a clamped state);

[0060] Figure 9 For Figure 3 Cross-sectional view of the P-P part of (only showing the fixing mechanism on one side, and the clamping part of the clamping block and the card slot of the mold are in a loosened state).

[0061] Explanation of reference numerals:

[0062] 10. Quick die-changing device dedicated to airtightness detection equipment; 100. Mold; 110. Detection groove; 120. Card slot; 200. Airtightness detection mechanism; 210. Lifting mechanism; 220. Pressing plate; 221. Pneumatic hole; 230. Airtightness detection head; 300. Fixing mechanism; 310. Support base; 311. Second inclined surface; 312. Positioning groove; 313. Support part; 314. Vent hole; 320. Propulsion assembly; 321. Motor; 322. First lead screw; 323. Propulsion block; 3231. First inclined surface; 324. Sliding wheel; 330. Fixing assembly; 331. Second lead screw; 332. Sliding block; 333. Connecting rod; 3331. Second abutting surface; 334. Clamping block; 3341. Card part; 3342. Avoidance groove; 3343. First abutting surface; 335. Synchronous belt; 400. Base; 410. Positioning part. Detailed implementation mode

[0063] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0064] To enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are only some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0065] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly disposed on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component.

[0066] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0067] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, the meaning of "a plurality of" and "several" is two or more, unless otherwise specifically defined.

[0068] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the implementation conditions of this application. Therefore, they do not have substantial technical significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that this application can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in this application.

[0069] Please refer to Figures 1 to 9 , this application provides a quick die-changing device 10 dedicated to an airtightness detection device, including a die 100, an airtightness detection mechanism 200, a fixing mechanism 300, and a base 400. The airtightness detection mechanism 200 and the fixing mechanism 300 are arranged on the base 400. The die 100 is provided with a detection groove 110 for placing an object to be detected. The airtightness detection mechanism 200 is used to seal the detection groove 110 and inflate or deflate the detection groove 110. The fixing mechanism 300 includes a support seat 310, two propulsion components 320, and two fixing components 330. The support seat 310 is movably arranged on the base 400, and the die 100 is placed on the support seat 310; the two propulsion components 320 are respectively arranged on both sides of the bottom of the support seat 310 and can drive the support seat 310 to move upward; the two fixing components 330 are respectively arranged on both sides of the top edge of the support seat 310 and can fix the die 100 on the support seat 310.

[0070] When the propulsion component 320 drives the support seat 310 to move upward, the propulsion component 320 simultaneously drives the fixing component 330 to move away from the die 100 to loosen the die 100;

[0071] When the propulsion component 320 moves away from the support seat 310, the support seat 310 moves downward by its own gravity, and the propulsion component 320 simultaneously drives the fixing component 330 to fix the die 100.

[0072] Specifically, the support base 310 is movably arranged on the base 400 and is used to place the mold 100 and fix and release the mold 100 by its lifting. The support base 310 can move up and down so that the mold 100 can remain stable during the detection process and quickly disengage during replacement. Two propulsion components 320 are respectively arranged on both sides of the bottom of the support base 310 and can drive the support base 310 to move upward. Through the symmetrical arrangement of the two propulsion components 320, the stable lifting of the support base 310 is realized, avoiding the situation of tilting or instability of the mold 100 during the movement. Two fixing components 330 are respectively arranged on both sides of the top edge of the support base 310 and can fix the mold 100 on the support base 310. The two fixing components 330 are respectively arranged on both sides of the top edge of the support base 310 and can fix the mold 100 on the support base 310. The two fixing components 330 cooperate with the mold 100 to realize the fixing and release of the mold 100. The arrangement of the fixing components 330 ensures that the mold 100 can be firmly clamped on the support base 310 and can be quickly released when replacement is needed. Through the symmetrical arrangement of the two propulsion components 320 and the two fixing components 330, the stability of the support base 310 during the lifting process is realized, avoiding the phenomena of shaking or jamming caused by uneven unilateral force. This structural design further improves the accuracy of the positioning and detection of the mold 100. When the propulsion component 320 drives the support base 310 to move upward, the fixing component 330 moves synchronously away from the mold 100 to release the mold 100, enabling the operator or equipment to quickly replace the mold 100; when the propulsion component 320 moves away from the support base 310, the support base 310 sinks by its own gravity and at the same time drives the fixing component 330 to re-clamp the mold 100, firmly fixing the mold 100 on the support base 310. Thus, when the mold 100 rises, it is released, and when it descends, it is fixed. This automated operation effectively reduces the risk of human error and improves the efficiency and safety of the mold 100 replacement.

[0073] It should be noted that the support base 310 sinks by its own gravity without additional power drive, simplifying the system structure and reducing the cost and energy consumption.

[0074] It should be understood that the mold changing devices in traditional air tightness testing equipment mostly rely on manual operation or simple mechanical mechanisms to complete the fixing and loosening of the mold 100. This operation is not only time-consuming, but also requires a high degree of manual participation, which increases the complexity of the operation. In a multi-variety, small-batch production environment, such defects are particularly obvious. Frequent mold changes will cause the production line to be down for too long, affecting the overall production efficiency. In the present application, the fixing mechanism 300 cooperates with the electric propulsion component 320 and the fixing component 330, so that the operator or equipment can quickly fix or replace the mold 100, realize the automatic replacement of the mold 100, shorten the mold change time, and reduce the work intensity of the operator. The problem of low efficiency of fixing or loosening the mold 100 in the existing mold changing device during the detection of multi-specification items to be tested is solved, thereby improving the efficiency of replacing the mold 100.

[0075] It should be noted that for objects to be tested of different sizes and shapes, the rapid replacement of the mold 100 is the key to ensuring the detection efficiency. In the present application, the rapid mold change device can not only adapt to molds 100 of different specifications, that is, detection slots 110 of different sizes and shapes on the mold 100, but also quickly switch the mold 100 between different detection requirements, greatly improving the flexibility of the production line. This design is particularly suitable for use in automotive parts, electronic products, medical equipment and other fields, meeting the needs of these industries for efficient airtightness detection.

[0076] Please refer to Figures 6 to 9 In one embodiment, each propulsion assembly 320 includes a motor 321, a first screw rod 322, and a propulsion block 323. The motor 321 is arranged on the base 400; the axial direction of the first screw rod 322 is connected to the rotating shaft of the motor 321; the propulsion block 323 is threadedly connected to the first screw rod 322, and the propulsion block 323 is slidably connected to the base 400. A first inclined surface 3231 is provided on the side of the propulsion block 323 close to the support seat 310; a second inclined surface 311 adapted to the first inclined surface 3231 is provided on the side of the bottom of the support seat 310 close to the propulsion block 323, and the first inclined surface 3231 is in contact with and parallel to the second inclined surface 311. When the motor 321 drives the first screw rod 322 to rotate forward, the first screw rod 322 drives the propulsion block 323 to move toward the support seat 310, and the first inclined surface 3231 squeezes the second inclined surface 311 in the horizontal direction, so that the support seat 310 moves upward and drives the fixing assembly 330 to release the mold 100; when the motor 321 drives the first screw rod 322 to rotate reversely, the first screw rod 322 drives the propulsion block 323 to move away from the support seat 310, and the support seat 310 moves downward by its own gravity, and the fixing assembly 330 simultaneously fixes the mold 100, thereby fixing the mold 100 on the support seat 310.

[0077] Specifically, the first inclined surface 3231 of the pushing block 323 is in contact with the second inclined surface 311 of the support base 310. When the motor 321 drives the first lead screw 322 to rotate forward, the first lead screw 322 drives the pushing block 323 to move along the axial direction of the first lead screw 322 towards the support base 310. During this process, the first inclined surface 3231 of the pushing block 323 horizontally presses the second inclined surface 311 at the bottom of the support base 310, pushing the support base 310 to move upward. While the support base 310 rises, it drives the fixing assembly 330 to move away from the mold 100, thus loosening the mold 100 for convenient replacement of the mold 100. When the motor 321 drives the first lead screw 322 in reverse, the first lead screw 322 drives the pushing block 323 to move away from the support base 310. As the pushing block 323 moves away, the support base 310 loses support and naturally sinks under its own gravity, driving the fixing assembly 330 to clamp the mold 100, thereby firmly fixing the mold 100 on the support base 310.

[0078] Please refer to Figures 6 to 9 , in an embodiment, each fixing assembly 330 includes a second lead screw 331, a sliding block 332, a clamping block 334, and a connecting rod 333. The second lead screw 331 is in transmission connection with the first lead screw 322, and the second lead screw 331 and the first lead screw 322 are arranged along the same axis; the sliding block 332 is threadedly connected to the second lead screw 331, and the sliding block 332 is slidably connected to the base 400; the clamping block 334 is rotatably connected to the base 400; one end of the connecting rod 333 is rotatably connected to the sliding block 332, and the other end is rotatably connected to the clamping block 334. When the first lead screw 322 drives the second lead screw 331 to rotate forward synchronously, the second lead screw 331 drives the sliding block 332 to move towards the mold 100, causing the sliding block 332 to push the connecting rod 333 forward, making the clamping block 334 rotate relative to the base 400, and the clamping block 334 rotates away from the mold 100, thereby loosening the mold 100; when the first lead screw 322 drives the second lead screw 331 to rotate in reverse synchronously, the sliding block 332 moves away from the mold 100, causing the connecting rod 333 to drive the clamping block 334 to rotate relative to the base 400, and the clamping block 334 rotates towards the mold 100, making the clamping block 334 clamp the mold 100, thereby fixing the mold 100 on the support base 310.

[0079] Specifically, when the motor 321 drives the first lead screw 322 to rotate forward, the first lead screw 322 drives the second lead screw 331 to rotate forward synchronously through the transmission mechanism. As the second lead screw 331 rotates, the slider 332 moves along the second lead screw 331 towards the mold 100. The forward pushing action of the slider 332 will push the connecting rod 333 towards the mold 100, and at the same time drive the clamping block 334 to rotate away from the mold 100, thereby loosening the mold 100 and enabling the mold 100 to be easily removed or replaced.

[0080] When the motor 321 drives the first lead screw 322 to rotate reversely, the first lead screw 322 drives the second lead screw 331 to rotate reversely synchronously through the transmission mechanism, and the slider 332 moves along the second lead screw 331 away from the mold 100. The movement of the slider 332 will pull the connecting rod 333 to move in the opposite direction, causing the clamping block 334 to rotate and clamp the mold 100 towards the mold 100, ensuring that the mold 100 is firmly fixed, so as to firmly fix the mold 100 on the support base 310.

[0081] Please refer to Figure 6 , in an embodiment, each fixing component 330 includes a synchronous belt 335. The first lead screw 322 and the second lead screw 331 are both rotatably connected to the base 400. The first lead screw 322 and the second lead screw 331 are both provided with teeth. The synchronous belt 335 surrounds the teeth of the first lead screw 322 and the teeth of the second lead screw 331; when the first lead screw 322 rotates, the first lead screw 322 drives the second lead screw 331 to rotate synchronously through the synchronous belt 335.

[0082] Specifically, when the motor 321 drives the first lead screw 322 to rotate forward, the teeth of the first lead screw 322 mesh with the synchronous belt 335, driving the synchronous belt 335 to rotate in the corresponding direction. The synchronous belt 335 keeps the second lead screw 331 rotating forward synchronously through the transmission. During this process, the second lead screw 331 drives the slider 332 to move towards the mold 100, and pushes the connecting rod 333 and the clamping block 334 away from the mold 100, loosening the mold 100 for replacement operation. When the motor 321 drives the first lead screw 322 to rotate reversely, the synchronous belt 335 will also drive the second lead screw 331 to rotate reversely synchronously. At this time, the slider 332 moves away from the mold 100, and pulls the connecting rod 333 and the clamping block 334 to clamp the mold 100, firmly fixing the mold 100 on the support base 310 to ensure stability during the detection process.

[0083] Please refer to Figure 6 and Figure 7, in one embodiment, each propulsion component 320 includes a plurality of sliding wheels 324. The plurality of sliding wheels 324 are rotatably connected to the first inclined surface 3231, and the plurality of sliding wheels 324 can roll along the extension direction of the first lead screw 322. When the first inclined surface 3231 presses against the second inclined surface 311 in the horizontal direction, each sliding wheel 324 rolls on the first inclined surface 3231, causing the second inclined surface 311 to push the support base 310 upward; when the first inclined surface 3231 moves away from the second inclined surface 311 in the horizontal direction, each sliding wheel 324 rolls in the opposite direction of the first inclined surface 3231, causing the support base 310 to move downward under the action of gravity.

[0084] Specifically, the introduction of the sliding wheels 324 significantly reduces the friction between the first inclined surface 3231 and the second inclined surface 311, making the lifting and lowering process of the support base 310 smoother and more stable. When the motor 321 drives the first lead screw 322 to rotate forward, the first lead screw 322 drives the propulsion block 323 to move towards the support base 310. As the propulsion block 323 moves, the first inclined surface 3231 presses against the second inclined surface 311 in the horizontal direction. At this time, the plurality of sliding wheels 324 roll synchronously on the first inclined surface 3231, reducing the friction between the inclined surfaces. The rolling action of the sliding wheels 324 enables the support base 310 to move upward smoothly, while driving the fixing component 330 to move away from the mold 100, loosening the mold 100, which facilitates the replacement of the mold 100.

[0085] When the motor 321 drives the first lead screw 322 to rotate in the reverse direction, the first lead screw 322 drives the propulsion block 323 to move away from the support base 310. As the propulsion block 323 moves away, the first inclined surface 3231 separates from the second inclined surface 311, and the plurality of sliding wheels 324 roll in the opposite direction of the first inclined surface 3231, causing the support base 310 to sink naturally under the action of gravity. While the support base 310 sinks, the fixing component 330 clamps the mold 100, firmly fixing the mold 100 on the support base 310.

[0086] Please refer to Figures 6 to 8 , in one embodiment, a clamping portion 3341 is provided at one end of the clamping block 334 away from the connecting rod 333, and a clamping groove 120 is formed near the edge of the top of the mold 100. When the clamping block 334 rotates towards the mold 100, the clamping portion 3341 is engaged with the clamping groove 120, thereby firmly fixing the mold 100 on the support base 310; when the clamping block 334 rotates away from the mold 100, the clamping portion 3341 disengages from the clamping groove 120, releasing the mold 100, which facilitates the quick replacement of the mold 100.

[0087] Specifically, when the motor 321 drives the second lead screw 331 to rotate, it pushes the slider 332 and the connecting rod 333 to move, causing the clamping block 334 to rotate towards the mold 100. As the clamping block 334 rotates, the clamping portion 3341 thereon is inserted into the card slot 120 of the mold 100. The fitting structure of the clamping portion 3341 and the card slot 120 ensures that the mold 100 is firmly fixed on the support base 310, preventing the mold 100 from loosening or shifting during the detection process.

[0088] When the motor 321 drives the second lead screw 331 to rotate in the reverse direction, the slider 332 moves in the opposite direction, driving the connecting rod 333 to rotate the clamping block 334 away from the mold 100. At this time, the clamping portion 3341 disengages from the card slot 120, releasing the clamping between the mold 100 and the support base 310, facilitating the rapid replacement of the mold 100.

[0089] Please refer to Figure 8 , in an embodiment, an avoidance groove 3342 is provided at one end of the clamping block 334 close to the connecting rod 333 to prevent interference with the connecting rod 333 during the rotation of the clamping block 334.

[0090] Specifically, when the motor 321 drives the first lead screw 322 to rotate forward, the slider 332 drives the connecting rod 333 to move towards the mold 100 and pushes the clamping block 334 to rotate away from the mold 100. During this process, a part of the connecting rod 333 enters the avoidance groove 3342 on the clamping block 334, avoiding direct contact and interference between the connecting rod 333 and the clamping block 334, and ensuring the smooth rotation of the clamping block 334.

[0091] Please refer to Figure 8 , in an embodiment, the clamping block 334 is provided with a first abutting surface 3343 at the position of the avoidance groove 3342, and the connecting rod 333 is provided with a second abutting surface 3331; when the slider 332 pushes the connecting rod 333 forward, the clamping block 334 rotates away from the mold 100, causing the first abutting surface 3343 to fit with the second abutting surface 3331.

[0092] Specifically, when the motor 321 drives the second lead screw 331 to rotate forward, the slider 332 pushes the connecting rod 333 to move forward, causing the clamping block 334 to rotate away from the mold 100. During this process, the second abutting surface 3331 of the connecting rod 333 fits with the first abutting surface 3343 of the clamping block 334, ensuring the position accuracy and motion stability of the clamping block 334 during rotation, and avoiding deviation or shaking.

[0093] Please refer to Figures 4 to 6, in one embodiment, a positioning groove 312 is formed at the bottom of the support base 310, and the base 400 is provided with a positioning portion 410 which extends into the positioning groove 312 to limit and guide the position of the support base 310; support portions 313 for supporting the mold 100 are provided on both sides of the support base 310; a plurality of air vents 314 are formed in the support base 310 in the vertical direction; when the mold 100 is placed on the support base 310, a gap is provided between the mold 100 and the orifice of each air vent 314 facing the mold 100, so as to reduce air resistance and improve the movement efficiency when the support base 310 moves up or down.

[0094] Specifically, when the support base 310 moves up and down, the positioning portion 410 on the base 400 extends into the positioning groove 312 of the support base 310 to limit and guide the position of the support base 310. This design ensures the stability of the support base 310 during the lifting process and avoids inaccurate installation or detection errors of the mold 100 caused by deviation. Support portions 313 are provided on both sides of the support base 310 for supporting the mold 100. More importantly, the support portions 313 are used to form a gap between the orifice of the air vent 314 and the mold 100, so that when the support base 310 moves up or down, air can smoothly discharge or enter through these air vents 314. The existence of the air vents 314 avoids the formation of resistance of air between the support base 310 and the mold 100, thereby improving the movement efficiency of the support base 310.

[0095] Please refer to Figure 1 and Figure 5 , in one embodiment, the airtightness detection mechanism 200 includes a lifting mechanism 210, a pressing plate 220 and an airtightness detection head 230. The lifting mechanism 210 is arranged on the base 400; the pressing plate 220 is arranged on the lifting mechanism 210, and a pneumatic hole 221 is formed in the pressing plate 220; the airtightness detection head 230 is arranged in the pneumatic hole 221 and seals the orifice of the pneumatic hole 221 facing the airtightness detection head 230. When the lifting mechanism drives the pressing plate 220 to press down the mold 100, the pressing plate 220 is attached to the mold 100, and at the same time, the pneumatic hole 221 is communicated with the detection groove 110. The airtightness detection head 230 inflates or deflates the detection groove 110 through the pneumatic hole 221 to detect the airtightness of the item to be tested; when the lifting mechanism drives the pressing plate 220 to move upward, the pressing plate 220 is separated from the mold 100, and the pneumatic hole 221 is disconnected from the detection groove 110.

[0096] Specifically, when the lifting mechanism 210 drives the pressing plate 220 to move downward, the pressing plate 220 is closely attached to the mold 100 to ensure that the pneumatic hole 221 on the pressing plate 220 is communicated with the detection groove 110 of the mold 100. At this time, the airtightness detection head 230 can inflate or deflate the detection groove 110 through the pneumatic hole 221 to determine whether there is leakage in the item to be tested.

[0097] After the detection is completed, the lifting mechanism 210 drives the pressing plate 220 to move upward, so that the pressing plate 220 is separated from the mold 100. As the pressing plate 220 moves upward, the communication state between the pneumatic hole 221 and the detection groove 110 is disconnected, and a detection process is completed.

[0098] Please refer to Figures 1 to 9 , the specific implementation process of this application:

[0099] Step 1: Initialize the quick die change device 10 dedicated to the airtightness detection equipment of this application. The control device controls the motor 321 to run. The motor 321 drives the first lead screw 322 to rotate forward. The first lead screw 322 drives the pushing block 323 to move in the direction of the support seat 310. The first inclined surface 3231 squeezes the second inclined surface 311 in the horizontal direction. The plurality of sliding wheels 324 roll synchronously on the first inclined surface 3231 of the pushing block 323 to reduce friction and make the support seat 310 move upward. At the same time, the first lead screw 322 drives the second lead screw 331 to rotate forward synchronously. The second lead screw 331 drives the sliding block 332 to move in the direction of the mold 100, so that the sliding block 332 pushes the connecting rod 333 forward, causing the clamping block 334 to rotate relative to the base 400. The clamping block 334 rotates in the direction away from the mold 100 on the support seat 310. At this time, the mold 100 on the support seat 310 can be installed or replaced.

[0100] Step 2: Install the mold 100. Place the mold 100 on the support portion 313, and place the item to be tested in the detection groove 110 of the mold 100.

[0101] Step 3: Fix the mold 100. The motor 321 drives the first lead screw 322 to rotate reversely. The first lead screw 322 drives the pushing block 323 to move away from the support seat 310. The support seat 310 moves downward by its own gravity, and the fixing component 330 fixes the mold 100 synchronously, so as to fix the mold 100 on the support seat 310. At the same time, the first lead screw 322 drives the second lead screw 331 to rotate reversely synchronously. The sliding block 332 moves away from the mold 100, so that the connecting rod 333 drives the clamping block 334 to rotate relative to the base 400. The clamping block 334 rotates in the direction of the mold 100, so that the clamping block 334 clamps the mold 100, that is, the clamping portion 3341 of the clamping block 334 is embedded in the card slot 120 of the mold 100. The clamping portion 3341 of the clamping block 334 is in close fit with the card slot 120 of the mold 100 to ensure that the mold 100 is firmly fixed on the support seat 310 and prevent displacement or loosening during the detection process. Thus, the mold 100 is fixed on the support seat 310.

[0102] Step 4: Detect the item to be tested in the detection groove 110 of the mold 100. The lifting mechanism 210 is activated to control the pressing plate 220 to press down. The lifting mechanism 210 drives the pressing plate 220 to start moving downward, making contact with and closely fitting to the surface of the mold 100. The pneumatic holes 221 on the pressing plate 220 communicate with the detection groove 110 of the mold 100, providing a sealed space for the operation of the airtightness detection head 230. The airtightness detection head 230 inflates or deflates the detection groove 110 through the pneumatic holes 221 to detect whether there is leakage in the item to be tested. The system determines whether the airtightness meets the standard according to the preset detection parameters (such as air pressure, vacuum degree). The pressing plate 220 rises, and the detection is completed:

[0103] Step 5: The detection is completed. After the detection is completed, the lifting mechanism 210 drives the pressing plate 220 to move upward, disconnecting the communication state between the pneumatic holes 221 and the detection groove 110.

[0104] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A quick die-changing device dedicated to an airtightness detection device, comprising a die, an airtightness detection mechanism, a fixing mechanism and a base. The airtightness detection mechanism and the fixing mechanism are arranged on the base. The die is provided with a detection groove for placing an article to be tested. The airtightness detection mechanism is used to seal the detection groove and inflate or deflate the detection groove. It is characterized in that, The fixing mechanism includes: a support base movably arranged on the base, and the mold is placed on the support base; two propulsion components respectively arranged on both sides of the bottom of the support base, which can drive the support base to move upward; two fixing components respectively arranged on both sides of the top edge of the support base, which can fix the mold on the support base; When the propulsion component drives the support base to move upward, the propulsion component simultaneously drives the fixing component to move away from the mold to loosen the mold; When the propulsion component moves away from the support base, the support base moves downward by its own gravity, and the propulsion component simultaneously drives the fixing component to fix the mold; Each of the propulsion components includes: a motor arranged on the base; a first lead screw, the axial direction of which is connected to the rotating shaft of the motor; a propulsion block threadedly connected to the first lead screw, the propulsion block is slidably connected to the base, and a first inclined surface is arranged on one side of the propulsion block close to the support base; a second inclined surface adapted to the first inclined surface is arranged on one side of the bottom of the support base close to the propulsion block, and the first inclined surface is in contact with and parallel to the second inclined surface; When the motor drives the first lead screw to rotate forward, the first lead screw drives the propulsion block to move towards the support base, and the first inclined surface horizontally presses the second inclined surface, so that the support base moves upward and drives the fixing component to loosen the mold; When the motor drives the first lead screw to rotate reversely, the first lead screw drives the propulsion block to move away from the support base, the support base moves downward by its own gravity, and the fixing component synchronously fixes the mold, thereby fixing the mold on the support base.

2. The quick die-changing device dedicated to the airtightness detection equipment according to claim 1, characterized in that, Each of the fixing components includes: a second lead screw transmissionally connected to the first lead screw, and the second lead screw and the first lead screw are arranged along the same axial direction; a sliding block threadedly connected to the second lead screw, and the sliding block is slidably connected to the base; a clamping block rotatably connected to the base; a connecting rod, one end of which is rotatably connected to the sliding block and the other end of which is rotatably connected to the clamping block; When the first lead screw drives the second lead screw to rotate forward synchronously, the second lead screw drives the sliding block to move towards the mold, so that the sliding block pushes the connecting rod forward, and the clamping block rotates relative to the base, and the clamping block rotates along the direction away from the mold, thereby loosening the mold; When the first lead screw drives the second lead screw to rotate reversely synchronously, the sliding block moves away from the mold, so that the connecting rod drives the clamping block to rotate relative to the base, the clamping block rotates towards the mold, and the clamping block clamps the mold, thereby fixing the mold on the support base.

3. The quick die-changing device dedicated to the airtightness detection equipment according to claim 2, characterized in that Each of the fixing components includes a synchronous belt. The first lead screw and the second lead screw are both rotatably connected to the base. The first lead screw and the second lead screw are both provided with teeth, and the synchronous belt surrounds the teeth of the first lead screw and the teeth of the second lead screw; When the first lead screw rotates, the first lead screw drives the second lead screw to rotate synchronously through the synchronous belt.

4. The quick die-changing device dedicated to the airtightness detection equipment according to claim 1, characterized in that, Each of the propulsion components includes a plurality of sliding wheels, and the plurality of sliding wheels are rotatably connected to the first inclined surface, and the plurality of sliding wheels can roll along the extending direction of the first lead screw; When the first inclined surface squeezes the second inclined surface in the horizontal direction, each sliding wheel rolls on the first inclined surface, so that the second inclined surface pushes the support base to move upward; When the first inclined surface moves away from the second inclined surface in the horizontal direction, each sliding wheel rolls in the opposite direction of the first inclined surface, so that the support base moves downward under the action of gravity.

5. The quick die change device dedicated to the airtightness detection equipment according to claim 2, characterized in that A clamping portion is provided at one end of the clamping block away from the connecting rod, and a clamping groove is formed at a position near the edge of the top of the mold; When the clamping block rotates towards the mold, the clamping portion is engaged with the clamping groove, so as to firmly fix the mold on the support base; When the clamping block rotates away from the mold, the clamping portion is disengaged from the clamping groove, so that the mold is loosened, facilitating the quick replacement of the mold.

6. The quick die-changing device dedicated to the airtightness detection equipment according to claim 2, characterized in that, An avoidance groove is formed at one end of the clamping block near the connecting rod to prevent interference with the connecting rod during the rotation of the clamping block.

7. The quick die-changing device for the airtightness detection equipment according to claim 6, wherein The clamping block is provided with a first abutting surface at the position of the avoidance groove, and the connecting rod is provided with a second abutting surface; When the sliding block pushes the connecting rod forward, the clamping block rotates away from the mold, so that the first abutting surface is in contact with the second abutting surface.

8. The quick die-changing device special for the airtightness detection equipment according to claim 1, characterized in that, A positioning groove is formed at the bottom of the support base, and the base is provided with a positioning portion, and the positioning portion extends into the positioning groove to limit and guide the position of the support base; Support portions for supporting the mold are provided on both sides of the support base, and a plurality of air vents are formed in the support base in the vertical direction; When the mold is placed on the support base, a gap is provided between the mold and the orifice of each air vent facing the mold, so that when the support base moves upward or downward, the air resistance is reduced and the moving efficiency is improved.

9. The quick die-changing device special for the airtightness detection equipment according to claim 1, characterized in that, The airtightness detection mechanism includes: A lifting mechanism, provided on the base; A pressing plate, provided on the lifting mechanism, and an air hole is formed in the pressing plate; An airtightness detection head, provided in the air hole and sealing the orifice of the air hole facing the airtightness detection head; When the lifting mechanism drives the pressing plate to press down the mold, the pressing plate is in contact with the mold, and at the same time the air hole is communicated with the detection groove, and the airtightness detection head inflates or deflates the detection groove through the air hole to detect the airtightness of the item to be tested; When the lifting mechanism drives the pressing plate to move upward, the pressing plate is disengaged from the mold, and the air hole is disconnected from the detection groove.

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