An elastomer for push-pull testing equipment

Abstract

This invention belongs to the field of micro-weld joint strength testing technology and discloses an elastomer for push-pull testing equipment. The elastomer includes a base with a guide rail on its surface; a slider slidably mounted on the base via the guide rail; and a vent plate with an air inlet channel and several air outlets. The air inlet channel connects the air outlets to an external air supply device. An elastic element is positioned between the base and the vent plate, facing the slider. The elastic element applies a spring force to the vent plate, ensuring tight contact between the vent plate and the slider, thus fixing the slider. When the external air supply device is activated, high-pressure gas is ejected from the air outlets through the air inlet channel. The gas drives the vent plate to retract, compressing the elastic element and forming an air film between the vent plate and the slider, allowing the slider to slide freely along the guide rail. This design avoids mechanical contact between the pusher assembly and the workpiece, providing buffering and protection, reducing damage to the pusher assembly, and improving its service life.

Description

Technical Field

[0001] This invention relates to the field of micro-weld strength testing technology, and in particular to an elastomer for push-pull testing equipment. Background Technology

[0002] In push-pull testing of electronic devices or materials, to ensure the reliability of test data, the test head and the target under test must maintain highly accurate alignment and positioning. However, when most existing push-pull testing equipment senses contact or applies load, the push blade assembly often experiences horizontal displacement due to the influence of structural elastic deformation. Especially when performing shear tests on precision parts (such as solder joints and small contact parts), this displacement not only leads to positioning inaccuracies but may also cause unexpected collisions between the blade and the test target or fixture, and in severe cases, even damage the tool.

[0003] To alleviate this problem, patent CN1998075A discloses a shear force testing structure. This structure uses an air bearing assembly to suspend the test probe on the surface being tested. Compressed air creates an air gap between the substrate and the moving component, achieving frictionless initial positioning. After determining the contact position, a clamping mechanism is activated to lock the probe and perform the shear force test. This solution, through non-contact positioning combined with a clamping and releasing mechanism, effectively reduces the frictional impact in the initial testing phase, improving stability and repeatability during the shear test to some extent. However, the moving structure still relies on a stable supply of air bearings and air. The formation and maintenance of the air film are sensitive to air pressure fluctuations, and the overall structure lacks systematic optimization for long-term structural fatigue and mechanical stability. The test components are still susceptible to error accumulation and wear, leaving room for improvement in reliability and durability.

[0004] Furthermore, existing technologies have proposed improvements to address the horizontal displacement problem during shear force testing. For example, patent CN102252786B discloses a shear force testing device that uses a pair of symmetrically arranged U-shaped elastic arms to form an elastic body, which counteracts the horizontal displacement deviation caused by elastic deformation and improves the accuracy of contact positioning. In addition, the device adds a micro-motion mechanism between the free end of the elastic body and the substrate, using non-contact methods such as air bearings and magnetic repulsion to form a tiny gap, allowing the test head to float freely in the vertical direction during contact sensing, thereby further reducing mechanical interference and contact errors. However, this device mainly relies on the structural symmetry of the metal elastic arms for position compensation, which is prone to material fatigue or micro-deformation after long-term use, affecting the compensation accuracy. Moreover, its micro-motion mechanism has a complex structure, requires high stability of the air source or magnetic field, has high maintenance costs, and is difficult to overcome problems such as sliding friction, impact buffering, and structural protection of the pusher.

[0005] Therefore, an elastomer for push-pull testing equipment is proposed to solve the above problems. Summary of the Invention

[0006] The main objective of this invention is to provide an elastomer for push-pull testing equipment, aiming to solve the problems of structural fatigue, increased horizontal offset, and reduced blade life in existing push-pull testing equipment.

[0007] To achieve the above-mentioned objectives, the present invention provides an elastic body for a push-pull testing device, comprising:

[0008] The base has guide rails on its surface;

[0009] The slider is slidably mounted on the base via the guide rail;

[0010] A vent plate is installed on the base and located between the base and the slider. The vent plate is provided with an air inlet channel and several air outlets. The air inlet channel is used to connect the air outlets to an external air supply device. The air outlets are oriented toward the slider.

[0011] An elastic element is installed between the base and the vent plate. The elastic element applies a spring force to the vent plate to make the vent plate and the slider come into close contact, thereby fixing the slider.

[0012] When the external gas supply equipment is started, high-pressure gas is ejected from the outlet through the air inlet channel. The gas drives the vent plate to retract and squeeze the elastic element, forming an air film between the vent plate and the slider, allowing the slider to slide freely along the guide rail.

[0013] Furthermore, the air outlet is provided in a plurality of manners, and the air outlet direction of the plurality of air outlets is parallel to the elastic force direction of the elastic element.

[0014] Furthermore, a plurality of the air outlets are arranged in a matrix on the ventilation plate;

[0015] The air outlet includes a first array and a second array, and the air inlet includes a first channel and a second channel. The first array is connected to the first channel, and the second array is connected to the second channel.

[0016] Furthermore, the guide rail includes a first slide rail, a second slide rail, and a slider, the slider being slidably connected to the first slide rail and the second slide rail, the first slide rail being fixedly connected to the slider, and the second slide rail being fixedly connected to the base;

[0017] When the air supply device stops supplying air to the air inlet channel, the vent plate is in close contact with the slider through the elastic force of the elastic element, and the first slide rail moves relative to the second slide rail through the slider.

[0018] Furthermore, a U-shaped groove is provided on one side of the first slide rail and the second slide rail opposite to each other, and the sliding block includes a plurality of cylindrical connecting ends, which are arranged along the length direction.

[0019] Among them, several of the connecting ends are engaged with the U-shaped groove, and the installation directions of two adjacent connecting ends are opposite.

[0020] Furthermore, a pressure plate is provided on the side of the slider facing the vent plate;

[0021] When the air supply device supplies air to the air inlet channel, an air film is formed between the pressure plate and the vent plate. When the air supply stops, the pressure plate and the vent plate are tightly fitted together to fix the slider.

[0022] Furthermore, both the pressure plate and the vent plate have roughened sides. When the air supply device stops supplying air to the vent channel, the vent plate is in close contact with the pressure plate under the elastic force of the elastic element. The pressure plate and the vent plate are fixed by contact friction. The slider moves along the guide rail toward the workpiece to be tested.

[0023] Furthermore, it also includes two magnetic bodies, both of which are disposed on the sides of the slider and the base;

[0024] The two magnetic bodies have the same magnetism and are configured to eliminate the weight of the slider itself to achieve a limiting position.

[0025] Furthermore, the pressure plate and the vent plate are made of stainless steel.

[0026] Furthermore, the pressure plate and the vent plate are made of stainless steel.

[0027] Beneficial effects:

[0028] An elastomer for a push-pull testing device according to the present invention includes: a base, the surface of which is provided with a guide rail; a slider slidably mounted on the base via the guide rail, wherein a pusher assembly is mounted on the slider; and a vent plate mounted on the base and located between the base and the slider, the vent plate having an air inlet channel and several air outlets, the air inlet channel connecting the air outlets to an external air supply device, and an elastic element disposed at the air outlets facing the slider, mounted between the base and the vent plate, the elastic element applying elastic force to the vent plate to make the vent plate and the slider tightly contact each other, thereby fixing the slider; wherein, when the external air supply device is started, high-pressure gas passes through the air inlet channel and the external air supply device. The air channel ejects air from the vent hole, driving the vent plate to retract and compress the elastic element, forming an air film between the vent plate and the slider, allowing the slider to slide freely along the guide rail. In this invention, the slider is slidably mounted on the base via the guide rail. The elastic element and the air film are combined to control the contact / separation state between the vent plate and the slider, thereby achieving fixation / release. This not only effectively avoids structural failure of the spring due to metal fatigue, but also achieves zero-friction sliding of the slider by forming a non-contact air film, avoiding mechanical contact between the pusher assembly and the workpiece, playing a buffering and protective role, reducing damage to the pusher assembly, and improving service life. Attached Figure Description

[0029] Figure 1 This is an exploded structural diagram of an elastic body for a push-pull testing device according to an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the structure of an elastic body for a push-pull testing device according to an embodiment of the present invention;

[0031] Figure 3 This is another exploded view of an elastic body for a push-pull testing device according to an embodiment of the present invention;

[0032] Figure 4 This is another exploded view of an elastic body for a push-pull testing device according to an embodiment of the present invention;

[0033] Figure 5 This is a cross-sectional view of an elastic body for a push-pull testing device according to an embodiment of the present invention;

[0034] Figure 6 This is a schematic diagram of the vent plate of an elastomer used in a push-pull testing device according to an embodiment of the present invention.

[0035] in:

[0036] 100. Base; 110. Elastic element; 120. Mounting slot;

[0037] 200. Slider;

[0038] 300, guide rail; 310, first slide rail; 320, second slide rail; 330, sliding block; 340, U-shaped groove; 350, connecting end;

[0039] 400. Vent plate; 410. Air inlet channel; 420. Air outlet;

[0040] 500, pressure plate; 510, rough part;

[0041] 600. Pusher assembly;

[0042] 700, receiving tank;

[0043] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0044] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0045] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0046] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0048] Reference Figures 1 to 6 The present invention provides an elastomer for a push-pull testing device, comprising:

[0049] Base 100, the surface of which is provided with guide rail 300;

[0050] The slider 200 is slidably mounted on the base 100 via the guide rail 300, and a pusher assembly 600 is mounted on the slider 200;

[0051] A vent plate 400 is installed on the base 100 and located between the base 100 and the slider 200. The vent plate 400 is provided with an air inlet channel 410 and a plurality of air outlets 420. The air inlet channel 410 is used to connect the air outlets 420 to an external air supply device. The air outlets 420 are oriented toward the slider 200.

[0052] An elastic element 110 is installed between the base 100 and the vent plate 400. The elastic element 110 applies elastic force to the vent plate 400 so that the vent plate 400 and the slider 200 are in close contact, thereby fixing the slider 200.

[0053] When the external gas supply equipment is started, high-pressure gas is ejected from the air outlet 420 through the air inlet channel 410. The gas drives the vent plate 400 to retract and squeeze the elastic member 110, forming an air film between the vent plate 400 and the slider 200, allowing the slider 200 to slide freely along the guide rail 300.

[0054] This invention aims to solve the technical problems of frequent maintenance and easy damage to the pusher assembly 600 caused by the fatigue, severe wear, and complex structure of the slider 200 structure due to metal spring sheet in existing push-pull testing equipment. By setting a vent plate 400 between the base 100 and the slider 200, and using an external air source to drive the vent plate 400 to move and form an air film, the slider 200 can be released by floating. Specifically, when air enters the system, the vent plate 400, under the action of air pressure, overcomes the force of the elastic element 110 and moves in the opposite direction, separating from the slider 200. This design ensures that the sensor and slider 200 can achieve precise and low-friction linear movement in the vertical direction, reducing damage to the pusher assembly 600 caused by interference or offset due to bottom contact. Specifically, the slider 200 connects... A photoelectric sensor is used to sense in real time whether the slider 200 has reached the predetermined movement position and feeds the status signal back to the control system. The control system executes subsequent actions based on the signal. An elastic element 110 is disposed between the base 100 and the vent plate 400. The base 100 has a mounting groove 120 for mounting the vent plate 400, and the vent plate 400 and the base 100 have a receiving groove 700 for placing the elastic element 110. In the absence of air supply, the vent plate 400 is pressed tightly against the slider 200 by the pushing force of the elastic element 110, achieving automatic locking. Before the equipment is started, the vent plate 400 is pushed by the elastic element 110 installed between it and the base 100, so that its upper surface is in contact with the bottom of the slider 200, thereby holding the slider 200 on the guide rail 30. When the air supply is turned on, high-pressure gas is ejected from several air outlets 420 through the air inlet channel 410, with the jet direction facing the bottom surface of the slider 200, forming a gas support force. This airflow causes the vent plate 400 to move downward against the elastic force of the elastic element 110, and on the other hand, a stable air film layer is formed between the vent plate 400 and the slider 200. This air film supports the slider 200 to achieve non-contact suspension, so that the slider 200 can slide freely on the guide rail 300 with low or even zero friction. After the air supply stops, the elastic element 110 acts again, lifting the vent plate 400 and adhering it to the slider 200, realizing automatic reset and relocking, completing a complete sliding-releasing-locking cycle; this invention uses the guide rail The structure of the slider 200, in conjunction with the 300, avoids the structural failure caused by material fatigue that leads to damage to the pusher in traditional metal spring positioning. It provides buffering and protection for the pusher, improving its service life. At the same time, the continuous pressing action of the elastic element 110 on the vent plate 400 achieves natural locking of the slider 200 when no air supply is provided. The air film layer formed when air is supplied enables the slider 200 to achieve non-contact support, effectively reducing friction and wear during movement and preventing hard contact impact between the pusher assembly 600 and the workpiece, resulting in significant buffering and protection. In addition, the elastic element 110 itself has good vibration absorption and recovery performance, further improving the stability and anti-interference ability of the slider 200 positioning.

[0055] The air outlet 420 is provided in a plurality of manners, and the air outlet direction of the plurality of air outlets 420 is parallel to the elastic force direction of the elastic member 110.

[0056] A plurality of the air outlets 420 are arranged in a matrix on the vent plate 400;

[0057] The air outlet 420 includes a first array and a second array, and the air intake channel 410 includes a first channel and a second channel. The first array is connected to the first channel, and the second array is connected to the second channel.

[0058] In this embodiment, multiple air outlets 420 are arranged parallel to the elastic force direction of the elastic element 110. When the airflow is ejected, it is consistent with the retraction direction of the vent plate 400, which can maximize the use of gas kinetic energy to push the vent plate 400 to compress the elastic element 110. Through the matrix arrangement, the airflow forms a continuous and uniform air film support surface at the bottom of the slider 200, avoiding tilting or displacement of the slider 200 due to uneven local force. The jet direction is parallel to the elastic force direction, which effectively improves the pushing efficiency of the gas on the vent plate 400. On the one hand, the gas kinetic energy and the reaction force of the elastic element 110 are precisely counteracted. On the other hand, the displacement of the vent plate 400 and the slider 200 during the operation is always in the vertical direction, avoiding horizontal displacement or lateral force interference. The matrix arrangement of the air outlets 420 improves the coverage and uniformity of the air film at the bottom of the slider 200, ensuring the stability of the air film. The slider 200 can always remain in a suspended state when released, reducing the risk of shaking and jamming, and enhancing the stability and accuracy of the system operation.

[0059] The guide rail 300 includes a first slide rail 310, a second slide rail 320 and a sliding block 330. The slider 200 is slidably connected to the first slide rail 310 and the second slide rail 320. The first slide rail 310 is fixedly connected to the slider 200, and the second slide rail 320 is fixedly connected to the base 100.

[0060] When the gas supply device stops supplying gas to the air inlet channel 410, the vent plate 400 is in close contact with the slider 200 through the elastic force of the elastic member 110, and the first slide rail 310 moves relative to the second slide rail 320 through the slider 200.

[0061] The first slide rail 310 and the second slide rail 320 are provided with a U-shaped groove 340 on their opposite sides. The sliding block 330 includes a plurality of column-shaped connecting ends 350, which are arranged along the length direction.

[0062] In this configuration, several of the connecting ends 350 are engaged with the U-shaped groove 340, and the installation directions of two adjacent connecting ends 350 are opposite.

[0063] This invention employs a composite structure of dual guide rails 300 and sliding blocks 330. The slider 200 is mounted on the first guide rail 310 and connected to the second guide rail 320 via the sliding blocks 330, creating a relative sliding relationship between the two rails. This structure improves sliding smoothness while effectively absorbing lateral interference forces during device movement. Furthermore, to ensure directional stability during the connection process of the sliding blocks 330, multiple connecting ends 350 are arranged adjacently in a cylindrical shape, with adjacent connecting ends 350 positioned in opposite directions. The U-shaped groove 340 provides limiting, further enhancing the stability and self-adjusting capability of the structural fit. When the air supply equipment is stopped, the vent plate 400, under the elastic force of the elastic element 110, presses against the slider 200. The slider 200 and the first guide rail 310 form a rigid connection, and this connection is then moved relative to the second guide rail 320 via the sliding blocks 330, achieving fine-tuning sliding with limited degrees of freedom.

[0064] The sliding block 330 is provided with multiple connecting ends 350. These connecting ends 350 are cylindrical in structure and arranged sequentially on the sliding block 330. Each connecting end 350 is embedded in the U-shaped groove 340 between the first slide rail 310 and the second slide rail 320, serving as a guide and limiting element. Adjacent connecting ends 350 are installed in opposite directions, forming a symmetrical counteracting structure in the direction of force, improving its torsional resistance and connection stability. The sliding block 330, through the cooperation of the connecting ends 350 and the U-shaped groove 340, allows limited sliding along the guide rail 300 while ensuring a stable connection, reducing friction and structural interference, and improving the system's sliding response speed and flexibility. The adjacent connecting ends 350 are installed in opposite directions, forming a symmetrical structural layout. This helps to disperse stress, improve torsional resistance and positioning stability, and exhibits stronger stability and lifespan under external interference or multiple start-stop test conditions. The adjacent reverse-installed connecting ends 350 in the sliding block 330 form a symmetrical mechanical layout, effectively offsetting the eccentric effect caused by forces in all directions, thereby improving the resistance of the entire sliding system to torque interference during high-frequency push-pull processes and ensuring smooth and vibration-free movement. The air film formed by the vent plate 400 eliminates the contact friction between the slider 200 and the vent plate 400, and the sliding action mainly relies on the guide rail 300 to control the direction. At this time, the composite guide rail 300 structure gives it high guidance and low friction sliding advantages, making the entire action system have a smooth and non-stuttering sliding performance.

[0065] The slider 200 is provided with a pressure plate 500 on the side facing the vent plate 400;

[0066] When the gas supply device supplies air to the air inlet channel 410, an air film is formed between the pressure plate 500 and the vent plate 400. When the gas supply stops, the pressure plate 500 and the vent plate 400 are tightly fitted together to fix the slider 200.

[0067] The pressure plate 500 is located between the vent plate 400 and the slider 200. When the air supply device stops supplying air to the air passage, the vent plate 400 is in close contact with the pressure plate 500 under the elastic force of the elastic element 110. The pressure plate 500 and the vent plate 400 are fixed by contact friction. The slider 200 moves along the guide rail 300 toward the workpiece to be tested.

[0068] The pressure plate and the ventilation plate are made of stainless steel.

[0069] The pressure plate and the ventilation plate are made of stainless steel.

[0070] This embodiment includes a slider 200, a vent plate 400, a pressure plate 500, an elastic element 110, and an air supply assembly. The slider 200 is slidably mounted on the base 100 via a guide rail 300, supporting the pusher assembly 600 and reciprocating along the guide rail 300. A pressure plate 500 is located on the bottom of the slider 200 facing the vent plate 400, between the vent plate 400 and the slider 200. The vent plate 400 is installed in a mounting groove 120 on the base 100, and has an air inlet channel 410 and multiple air outlets 420. The air inlet channel 410 can be connected to an external air supply device for air supply. In this embodiment, both the pressure plate 500 and the vent plate 400 are made of stainless steel, possessing good wear resistance and rigidity, while the slider 200 is made of aluminum alloy. The material is lightweight and easy to process. The combination of these three materials helps to improve the overall structure's durability and operational stability. In the specific operation process, when the air supply equipment supplies air to the air inlet channel 410, the gas is ejected through the air outlet 420. The vent plate 400 compresses the elastic element 110 and retracts. A stable air film is formed between the vent plate 400 and the pressure plate 500. The slider 200 enters a suspended state and does not generate mechanical friction with the vent plate 400, achieving a non-contact suspension state. At this time, the slider 200 can slide smoothly along the guide rail 300. There is almost no mechanical friction during the movement, which significantly reduces wear and energy consumption. When the air supply stops, the air film disappears, the air pressure decreases, and the vent plate 400 quickly rebounds and rises under the elastic force of the elastic element 110, re-engaging with the pressure plate 500. Since the pressure plate 500 is located between the slider 200 and the vent plate 400, the rebound of the vent plate 400 not only pushes the pressure plate 500 to fit against it, but also presses the slider 200 together, forming a firm contact between the three. The slider is locked and positioned through contact friction, effectively preventing displacement due to inertia or gravity. Through this structural design, this embodiment achieves precise slider movement while simultaneously supporting both low-friction movement and high-friction locking operation, improving the control accuracy and service life of the testing equipment. Furthermore, the pressure plate 500 also serves as a buffer, effectively preventing the slider 200 from directly rubbing against the surface of the vent plate 400 when not ventilated, thus preventing scratches and damage due to material differences.

[0071] The buffer device also includes two magnetic bodies, both of which are located on the sides of the slider and the base.

[0072] The two magnetic bodies have the same magnetism and are configured to eliminate the weight of the slider itself to achieve a limiting position.

[0073] In this embodiment, to further improve the motion stability and limiting control capability of the slider 200, two magnetic bodies are also included, which are respectively disposed on the side of the slider 200 and the base 100. The first magnetic body is provided on the right side of the slider 200, and the second magnetic body is provided on the corresponding side of the base 100. Both magnetic bodies can be permanent magnets and have the same installation polarity so as to generate a magnetic repulsion force when they approach each other. This magnetic repulsion force acts on the slider 200, so that it is subjected to a reverse repulsion force when it approaches the side of the base 100, thereby forming an auxiliary limiting on the end stroke of the slider. At the same time, the magnetic structure can also partially offset the weight of the slider when the slider is stationary or in a depressurized state, reduce its pressure on the vent plate 400, and effectively reduce mechanical wear in the depressurized state.

[0074] Specifically, the magnetic bodies are positioned in the same direction as the slider 200, and they do not contact each other or have physical friction. They form a non-contact floating support only through the magnetic field. This design not only simplifies the structural complexity of traditional limiting mechanisms but also improves the starting sensitivity of the slider under small driving forces. In addition, in this structure, the movement path of the slider 200 is still limited by the physical stroke of the guide rail 300. Therefore, the magnetic limiting and the guide rail limiting constitute a dual protection mechanism: on the one hand, soft limiting is achieved through magnetic repulsion to avoid impact; on the other hand, hard limiting is achieved through the stroke structure at the end of the guide rail to ensure that the slider does not run beyond the limit.

[0075] In summary, the elastomer used in the push-pull testing equipment of the present invention comprehensively adopts the synergistic control principle of magnetic repulsion limiting, air film release, and elastic locking reset to achieve high-precision motion control and stable positioning of the slider 200 in a vertical installation structure. Its principle can be summarized as follows:

[0076] First, two magnetic bodies of the same polarity are placed on opposite sides of the slider 200 and the base 100. These magnetic bodies generate a perpendicular magnetic repulsion force, forming a non-contact support that partially offsets the weight of the slider 200, preventing it from sliding freely in either ventilated or ventilated states. This magnetic repulsion limiting mechanism requires no additional structural intervention, improving structural simplicity and operational stability.

[0077] Secondly, during the equipment startup phase, the air supply system supplies air into the vent plate 400, and the high-pressure gas is ejected upward through the air outlet 420. The vent plate 400 compresses the elastic element 110 and retracts onto the base 100, forming a stable air film layer between the vent plate 400 and the pressure plate 500. This causes the slider 200 to detach from the surface of the vent plate 400, achieving a low-friction or even zero-friction suspension state. The slider 200 can slide freely on the guide rail 300, completing the pushing action of the pusher assembly 600.

[0078] Finally, after the slider 200 completes its downward press, it moves upward back to the predetermined position. The photoelectric sensor detects this and triggers the air cut-off operation. After the air supply stops, the air film layer quickly disappears, and the vent plate 400 rebounds upward under the elastic force of the elastic element 110, re-contacting the pressure plate 500 and pressing the slider 200 together. Reliable mechanical locking is achieved by relying on the friction between the stainless steel pressure plate 500 and the aluminum material of the slider 200, ensuring that the slider 200 is fixed in the current position again.

[0079] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An elastomer for a push-pull testing device, characterized in that, include: A base (100) having a guide rail (300) on its surface; A slider (200) is slidably mounted on the base (100) via the guide rail (300), and a pusher assembly (600) is mounted on the slider (200); A vent plate (400) is installed on a base (100) and located between the base (100) and the slider (200). The vent plate (400) is provided with an air inlet channel (410) and a plurality of air outlets (420). The air inlet channel (410) is used to connect the air outlets (420) and an external air supply device. The air outlets (420) are oriented toward the slider (200). An elastic element (110) is installed between the base (100) and the vent plate (400). The elastic element (110) applies elastic force to the vent plate (400) to make the vent plate (400) and the slider (200) in close contact, thereby fixing the slider (200). When the external gas supply equipment is started, high-pressure gas is ejected from the air outlet (420) through the air inlet channel (410). The gas drives the vent plate (400) to retract and squeeze the elastic element (110), forming an air film between the vent plate (400) and the slider (200), allowing the slider (200) to slide freely along the guide rail (300). The slider (200) is provided with a pressure plate (500) on the side facing the vent plate (400); When the gas supply device supplies gas to the air inlet channel (410), an air film is formed between the pressure plate (500) and the vent plate (400). When the gas supply stops, the pressure plate (500) and the vent plate (400) fit tightly together to fix the slider (200). The pressure plate (500) is located between the vent plate (400) and the slider (200). When the air supply device stops supplying air to the air inlet channel (410), the vent plate (400) is in close contact with the pressure plate (500) under the elastic force of the elastic element (110). The pressure plate (500) and the vent plate (400) are fixed by contact friction. The slider (200) moves along the guide rail (300) toward the workpiece to be tested. The elastic body used in the push-pull testing device also includes a magnetic body, and there are two magnetic bodies, both of which are disposed on the sides of the slider (200) and the base (100); The two magnetic bodies have the same magnetism and are configured to eliminate the weight of the slider (200) itself to achieve a limit.

2. The elastomer for push-pull testing equipment according to claim 1, characterized in that, The air outlet (420) is provided in a plurality of manners, and the air outlet direction of the plurality of air outlets (420) is parallel to the elastic force direction of the elastic element (110).

3. The elastomer for push-pull testing equipment according to claim 2, characterized in that, A plurality of the vent holes (420) are arranged in a matrix on the vent plate (400); The air outlet (420) includes a first array and a second array, and the air inlet channel (410) includes a first channel and a second channel. The first array is connected to the first channel, and the second array is connected to the second channel.

4. The elastomer for push-pull testing equipment according to claim 3, characterized in that, The guide rail (300) includes a first slide rail (310), a second slide rail (320), and a slider (330). The slider (200) is slidably connected to the first slide rail (310) and the second slide rail (320). The first slide rail (310) is fixedly connected to the slider (200), and the second slide rail (320) is fixedly connected to the base (100). When the air supply device stops supplying air to the air inlet channel (410), the vent plate (400) is in close contact with the slider (200) through the elastic force of the elastic member (110), and the first slide rail (310) moves relative to the second slide rail (320) through the slider (200).

5. The elastomer for a push-pull testing device according to claim 4, characterized in that, The first slide rail (310) and the second slide rail (320) have a U-shaped groove (340) on their opposite sides. The sliding block (330) includes a plurality of column-shaped connecting ends (350), which are arranged sequentially along the length direction. Among them, several of the connecting ends (350) are engaged with the U-shaped groove (340), and the installation directions of two adjacent connecting ends (350) are opposite.

6. The elastomer for a push-pull testing device according to claim 1, characterized in that, The pressure plate (500) and the ventilation plate (400) are made of stainless steel.

7. The elastomer for a push-pull testing device according to claim 1, characterized in that, The slider (200) is made of aluminum.

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