Device and method for testing firmness vibration of carrier module

Abstract

The invention relates to the technical field of product vibration testing, in particular to a carrier module firmness vibration testing device and method. The vibration testing device comprises a shell, a vibration table elastically arranged at the top of the shell and a vibration assembly used for driving the vibration table to generate vibration. The gas conveying pipeline is used for guiding gas flow to the periphery of the product; the control valve is used for controlling the on-off of the gas conveying pipeline; the piston mechanism is communicated with the gas conveying pipeline; wherein the gas transmission pipeline is fixedly connected with the vibration table and is used for synchronously moving along with the vibration table; according to the carrier module firmness vibration test device and test method, the piston mechanism is driven by using the pressure of the airflow to temporarily fix the product, and the piston mechanism is locked by using the vibration acting force in the vibration process to continuously fix the product. Therefore, the manual operation frequency is reduced, and the manual operation amount is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of product vibration testing, and more specifically, to a vibration testing device and method for the firmness of a carrier module. Background Art

[0002] A carrier module is a core hardware component in a communication system for generating, modulating, or demodulating carrier signals. Its main function is to load information to be transmitted (such as sound, data, etc.) onto a high-frequency carrier signal for efficient transmission through wireless or wired media. Among them, a power carrier module is a dedicated device that uses power lines as a communication medium to achieve data transmission. Its core principle is to superimpose a high-frequency communication signal (carrier) onto the original 50 / 60 Hz alternating current on the power line, and transmit electrical energy and data simultaneously through the power line without the need to lay additional communication lines.

[0003] In the production process, it is necessary to conduct vibration testing on the carrier module, and the equipment used for testing is a vibration test bench. A vibration test bench is a dedicated device for simulating vibration loading conditions in an actual environment and conducting vibration performance tests on products or equipment. It evaluates the reliability, durability, and performance of the object under test by applying mechanical vibrations with different frequencies, amplitudes, and directions.

[0004] Before vibration testing, it is necessary to fix the carrier module. Currently, the fixing methods can basically be divided into two types: automatic fixing and manual fixing. Among them, automatic fixing requires the use of automated clamping equipment, such as cylinders. However, these devices usually need to be installed on the vibration test bench, which will cause these devices to be damaged more quickly under the action of vibration. Therefore, the current fixing method is mainly manual fixing. However, when fixing multiple carrier modules simultaneously, it will result in multiple operations by workers, increasing the amount of manual operation. Summary of the Invention

[0005] The purpose of the present invention is to provide a vibration testing device and method for the firmness of a carrier module to solve the problems raised in the above background art.

[0006] To achieve the above purpose, one of the purposes of the present invention is to provide a vibration testing device for the firmness of a carrier module, including a housing, a vibration test bench elastically arranged on the top of the housing, and a vibration component for driving the vibration test bench to vibrate; it also includes an air delivery pipeline for guiding air flow to the periphery of the product, a control valve for controlling the on / off of the air delivery pipeline, and a piston mechanism communicated with the air delivery pipeline; wherein:

[0007] The air delivery pipeline is fixedly connected to the vibration test bench and is used to move synchronously with the vibration test bench;

[0008] The piston mechanism elongates by using the pressure in the air delivery pipeline and clamps the product on the top of the vibrating table; a secondary fixing mechanism is arranged outside the piston mechanism, and the secondary fixing mechanism locks the elongated piston mechanism by using the vibration force;

[0009] The control valve is located at the exhaust end of the air delivery pipeline and is used for controlling the air delivery pipeline to conduct after the secondary fixing mechanism locks the piston mechanism, so that the air flow in the air delivery pipeline blows towards the product through the exhaust end.

[0010] As a further improvement of this technical solution, the air delivery pipeline includes an air delivery pipe and an exhaust pipe communicated with the bottom of the air delivery pipe;

[0011] The air delivery pipe is fixedly arranged above the vibrating table, and an air inlet for introducing external air flow is arranged on the side wall;

[0012] The side wall of the exhaust pipe is provided with a nozzle facing the product;

[0013] The control valve is arranged in the exhaust pipe.

[0014] As a further improvement of this technical solution, the piston mechanism includes a piston pipe communicated with the bottom of the air delivery pipe and a piston rod with the top end slidably arranged in the piston pipe, and the piston rod clamps the product on the top of the vibrating table under the action of air pressure.

[0015] As a further improvement of this technical solution, the secondary fixing mechanism includes a sleeve and a counterweight block slidably sleeved on the outer circle of the piston pipe; among them:

[0016] The inner circle of the lower half part of the sleeve is in tight contact with the outer circle of the piston pipe, so that the sleeve moves synchronously with the piston pipe;

[0017] The counterweight block is located at the top of the sleeve and is used for applying a downward pressure to the sleeve;

[0018] It also includes balls for restricting the movement of the piston rod during the downward movement of the sleeve.

[0019] As a further improvement of this technical solution, the balls are slidably arranged in the through grooves penetrating the inner and outer circles of the piston pipe, and the diameter of the balls is greater than the length of the through grooves;

[0020] A card slot for the balls to enter is arranged on the outer circle of the piston rod;

[0021] The through grooves are arranged near the bottom of the piston pipe.

[0022] As a further improvement of this technical solution, the control valve includes a valve plate with one end horizontally penetrating into the exhaust pipe and a baffle plate fixedly arranged on the outer circle of the sleeve; the top of one end of the valve plate is elastically connected with the outer circle of the exhaust pipe, and one end of the valve plate extends to the end of the baffle plate;

[0023] When the sleeve drives the baffle plate to move downward, the valve plate conducts the exhaust pipe under the action of elasticity.

[0024] As a further improvement of this technical solution, the secondary fixing mechanism further includes a stopper and a protrusion fixedly arranged on the outer circle of the piston tube. The stopper increases the friction force between the sleeve and the piston tube by contacting the protrusion;

[0025] The inner diameter of the upper half of the sleeve is larger than the inner diameter of the lower half of the sleeve, and the stopper is located in the upper half of the sleeve.

[0026] As a further improvement of this technical solution, the stopper is a rubber ring with an inner circle fitting the outer circle of the piston tube and an outer circle fixed to the inner circle of the sleeve. The rubber ring is located in the upper half of the sleeve.

[0027] As a further improvement of this technical solution, the stopper is an elastic rod whose one end slides through the side wall of the upper half of the sleeve, and one end of the elastic rod is elastically connected to the outer circle of the sleeve;

[0028] The top of the protrusion is provided with an inclined surface.

[0029] The second object of the present invention is to provide a test method for a vibration test device for the firmness of a carrier module, including the following method steps:

[0030] S1. Introduce high-pressure gas into the air delivery pipe, so that the air pressure in the air delivery pipe pushes the piston rod downward to clamp the product;

[0031] S2. The vibration table drives the air delivery pipe, the piston tube, the piston rod and the product to vibrate synchronously. During the upward movement of the sleeve, it collides with the counterweight, forcing the sleeve to move downward;

[0032] S3. The downward movement of the sleeve squeezes the ball into the inside of the piston tube, forcing the ball to enter the card slot to lock the piston rod;

[0033] S4. The sleeve drives the baffle plate to move downward so that the end of the baffle plate is separated from the end of the valve plate, and then the valve plate conducts the exhaust pipe. The gas in the air delivery pipe blows to the product through the exhaust pipe and then through the nozzle.

[0034] Compared with the prior art, the beneficial effects of the present invention are:

[0035] In this vibration test device and test method for the firmness of the carrier module, the piston mechanism is driven by the pressure of the air flow to temporarily fix the product, and the piston mechanism is locked by the vibration force during the vibration process to continuously fix the product. Thereby reducing the number of manual operations and the amount of manual operation. Brief Description of the Drawings

[0036] Figure 1 Schematic diagram of the overall structure of the present invention Figure 1 ;

[0037] Figure 2 Schematic diagram of the overall structure of the present invention Figure 2 ;

[0038] Figure 3 For the present invention Figure 2 Enlarged schematic diagram of the structure at position A;

[0039] Figure 4 Schematic diagram of the structure of the piston tube of the present invention;

[0040] Figure 5 Schematic diagram of the structure of the piston rod of the present invention;

[0041] Figure 6 Schematic diagram of the structure of the secondary fixing mechanism of the present invention;

[0042] Figure 7 For the present invention Figure 6 Enlarged schematic diagram of the structure at position B;

[0043] Figure 8 Schematic diagram of the structure of the elastic rod of the present invention;

[0044] Figure 9 Schematic diagram of the structure of the control valve of the present invention;

[0045] Figure 10 Schematic diagram of the working state of the control valve of the present invention;

[0046] Figure 11 For the present invention Figure 10 Enlarged schematic diagram of the structure at position C.

[0047] The meanings of the various reference numerals in the figure are as follows:

[0048] 100, housing; 101, vibration table; 102, connecting spring; 103, electromagnetic vibrator; 104, lower fixture block; 105, upper fixture block; 106, product; 110, gas delivery pipe; 111, exhaust pipe; 112, nozzle; 120, piston tube; 121, piston rod; 122, card slot; 123, return spring; 130, secondary fixing mechanism; 131, ball; 132, sleeve; 133, counterweight; 134, protrusion; 135, rubber ring; 136, elastic rod; 137, mounting spring; 140, control valve; 141, valve plate; 142, return spring; 143, baffle. Detailed implementation manners

[0049] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative efforts shall fall within the protection scope of the present invention.

[0050] In the description of the present 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", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0051] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined.

[0052] When a large number of solder joints of the product 106 (i.e., the carrier module) are defective, in order to optimize and improve the soldering process, it is necessary to use a vibration test device to perform a vibration test on the product 106. During the test, by introducing an air flow to impact the product 106, the defective components can be separated from the circuit board in time to prevent the defective components from getting stuck on the circuit board. In this way, the soldering quality can be judged according to the falling-off time of the components. For this purpose, the vibration test device of the present invention introduces the above-mentioned air flow, uses the air flow to temporarily fix the product 106, and then uses the vibration force to continuously fix the product 106 to achieve the purpose of reducing the number of manual operations.

[0053] One of the purposes of the present invention is to provide a vibration test device for the firmness of a carrier module, as Figure 1 shown, including a housing 100 and a vibration table 101 elastically arranged on the top of the housing 100. Specifically as Figure 2 shown, the bottom of the vibration table 101 is connected to the top of the housing 100 through a connecting spring 102. In addition, a vibration assembly for driving the vibration table 101 to vibrate in the vertical direction is arranged inside the housing 100. The vibration assembly can be Figure 2The electromagnetic vibrator 103 shown can also be other components, such as a cylinder (driving the vibration table 101 to move up and down), a cam mechanism (using a protruding part to drive the vibration table 101 to move up and down), etc. Among them, the electromagnetic vibrator 103 is installed inside the housing 100, and its driving end is connected to the bottom of the vibration table 101. In this way, the driving end at the top of the electromagnetic vibrator 103 is used to drive the vibration table 101 to perform reciprocating up and down movements to achieve the purpose of vibration.

[0054] Combined with Figure 4 As shown, a plurality of lower clamping blocks 104 are fixedly arranged at the top of the vibration table 101, and an upper clamping block 105 is arranged above each lower clamping block 104. By placing the product 106 on the top of the lower clamping block 104 and then driving the upper clamping block 105 to move downward, the product 106 can be clamped and fixed.

[0055] The vibration test device further includes an air delivery pipeline for guiding air flow to the periphery of the product 106, a control valve 140 for controlling the on / off of the air delivery pipeline, and a piston mechanism communicated with the air delivery pipeline; among them, the air delivery pipeline is fixedly connected to the vibration table 101 and is used to move synchronously with the vibration table 101; the control valve 140 is located at the exhaust end of the air delivery pipeline; the piston mechanism extends by using the pressure in the air delivery pipeline and clamps the product 106 on the top of the vibration table 101; a secondary fixing mechanism 130 is arranged outside the piston mechanism, and the secondary fixing mechanism 130 locks the extended piston mechanism by using the vibration force; after the secondary fixing mechanism 130 locks the piston mechanism, the control valve 140 controls the air delivery pipeline to be conducted, so that the air flow in the air delivery pipe 110 blows towards the product 106 through the exhaust end.

[0056] Figure 2 The specific structure of the air delivery pipeline in some embodiments is listed. As shown in the figure, the air delivery pipeline includes an air delivery pipe 110 and an exhaust pipe 111 communicated with the bottom of the air delivery pipe 110. The two ends of the air delivery pipe 110 are bent downward to the top of the vibration table 101 for fixed connection with the vibration table 101; and, the left end of the air delivery pipe 110 is a closed structure to avoid the discharge of air flow, and the right end is an open structure communicated with an air compression device. The bottom end of the exhaust pipe 111 is also a closed structure to avoid the discharge of air flow, and this bottom end extends to the bottom of the product 106. At the same time, a plurality of nozzles 112 are arranged on the side wall of the exhaust pipe 111 facing the product 106 (refer to Figure 4 ).

[0057] In specific implementation, refer to Figure 3, penetrate through the part of the shaking table 101 corresponding to the opening (open structure) of the air delivery pipe 110. At this time, select a flexible hose, connect one end of the hose to the penetrated part of the shaking table 101, and connect the other end to the air compression device. In this way, the compressed gas can flow into the air delivery pipe 110 through the hose, and then be discharged to the side wall of the product 106 through the exhaust pipe 111 and the nozzle 112, so as to blow off the components in time. It should be noted that the control valve 140 is arranged in the exhaust pipe 111 to control the outflow of the air flow from the nozzle 112.

[0058] Figure 4 and Figure 5 lists the specific structures of the piston mechanism in some embodiments. First, as Figure 4 shown, the piston mechanism includes a piston tube 120 and a piston rod 121. The top end of the piston tube 120 is communicated with the bottom of the air delivery pipe 110, and the bottom end faces downward so that the whole is in a vertical state; the top end of the piston rod 121 is slidably arranged on the inner wall of the piston tube 120, and the bottom end is fixedly connected to the upper clamping block 105. In this way, when the air pressure in the air delivery pipe 110 becomes higher, the air pressure can push the piston rod 121 downward, so that the piston rod 121 drives the upper clamping block 105 to move downward to clamp and fix the product 106; when the air pressure in the air delivery pipe 110 becomes lower, by arranging a return spring 123 between the top of the piston rod 121 and the inner wall of the air delivery pipe 110, the return spring 123 pulls the piston rod 121 to move upward and reset.

[0059] However, the disadvantage of this is that: when the air flow is discharged through the nozzle 112, the air pressure in the air delivery pipe 110 will decrease. At this time, under the action of vibration, the piston rod 121 is likely to overcome the pressure of the air flow and generate an upward displacement movement, which will cause the upper clamping block 105 to disengage from the product 106.

[0060] Therefore, the present invention also sets a secondary fixing mechanism 130 outside the piston tube 120. As Figure 5 shown, the secondary fixing mechanism 130 includes a sleeve 132 slidably sleeved on the outer circle of the piston tube 120 and a counterweight 133. Among them, the counterweight 133 is located at the top of the sleeve 132; the inner circle of the lower half of the sleeve 132 is in close contact with the outer circle of the piston tube 120, so that there is friction between the two. In this embodiment, the sleeve 132 is preferably made of a lighter material, such as plastic, so that the inertia received by the sleeve 132 is smaller, and the relative displacement between the sleeve 132 and the piston tube 120 is avoided; the counterweight 133 is preferably made of a heavier material, such as metal, which is convenient to apply a downward movement force to the sleeve 132 under the action of vibration.

[0061] In addition, the secondary fixing mechanism 130 further includes a through groove penetrating the inner and outer circles of the piston tube 120 and a ball 131 slidably disposed in the through groove. The diameter of the ball 131 is greater than the length of the through groove, so that both sides of the ball 131 protrude from the inner and outer circles of the piston tube 120. The through groove is disposed near the bottom of the piston tube 120. At the same time, in order to prevent the ball 131 from disengaging from the through groove, the opening diameters at both ends of the through groove in this embodiment are reduced, specifically smaller than the diameter of the ball 131. Moreover, a clamping groove 122 is provided on the outer circle of the piston rod 121. The specific position of the clamping groove 122 is such that when the piston rod 121 clamps the product 106, the clamping groove 122 is on the sliding path of the ball 131.

[0062] Figure 9 The specific structure of the control valve 140 is shown. As shown in the figure, the control valve 140 includes a valve plate 141 that laterally penetrates into the exhaust pipe 111 at one end and a baffle 143 fixedly disposed on the outer circle of the sleeve 132. A return spring 142 that elastically connects the two is provided between the top of one end of the valve plate 141 and the outer circle of the exhaust pipe 111. One end of the valve plate 141 extending toward the return spring 142 reaches the end of the baffle 143. Both the upper and lower ends of the baffle 143 are inclined. When the sleeve 132 moves downward under the action of the counterweight 133, the baffle 143 moves downward and disengages from the end of the valve plate 141.

[0063] The usage process of the vibration test device will be described in detail below.

[0064] First, insert the product 106 into the groove at the top of the lower chuck 104, and then start the air compression device. At this time, the high-pressure gas enters the air delivery pipe 110 and is blocked by the valve plate 141 to prevent the gas from escaping. In this state, the air pressure in the air delivery pipe 110 increases and pushes the piston rod 121 downward, causing the piston rod 121 to drive the upper chuck 105 to clamp the product 106.

[0065] Then, start the electromagnetic vibrator 103. Drive the vibrating table 101 to vibrate through the electromagnetic vibrator 103. The vibrating table 101 drives the air delivery pipe 110, the piston pipe 120, the piston rod 121, and the product 106 to vibrate synchronously. During the vibration process, due to the frictional force set between the sleeve 132 and the piston pipe 120, and at the same time the sleeve 132 is made of a lighter material, the sleeve 132 will not slide up and down under the action of inertia. Moreover, during the upward movement of the piston pipe 120, the piston pipe 120 drives the sleeve 132 to move upward, and the upward movement of the sleeve 132 pushes the counterweight 133. Since the counterweight 133 moves by being pushed by the sleeve 132, the frequency of the up and down movement of the counterweight 133 is not the same as the frequency of the up and down movement of the sleeve 132. In this way, the sleeve 132 will collide with the counterweight 133 during the upward movement. And because the counterweight 133 is heavier, the counterweight 133 will press the sleeve 132 to move downward. The downward movement of the sleeve 132 squeezes the ball 131 into the interior of the piston pipe 120, forcing the ball 131 to enter the card slot 122. At this time, the inner ring of the sleeve 132 blocks the ball 131, so that the ball 131 locks the piston rod 121 through the card slot 122.

[0066] Combined with Figure 10 , during the downward movement of the sleeve 132, the sleeve 132 drives the baffle 143 to move downward, so that the end of the baffle 143 is separated from the end of the valve plate 141. At this time, the return spring 142 pulls the valve plate 141 to move towards the sleeve 132, so that the valve plate 141 conducts the exhaust pipe 111. At this time, the gas in the air delivery pipe 110 blows towards the product 106 through the exhaust pipe 111 and then through the nozzle 112. During this process, since the sleeve 132 locks the piston rod 121 through the ball 131, the piston rod 121 cannot move up and down. Therefore, the decrease in the air pressure in the air delivery pipe 110 will not affect the fixing effect of the piston rod 121 on the product 106.

[0067] Finally, when the connection between the component and the circuit board is not firm, the airflow discharged through the nozzle 112 can timely blow off the component. When the vibration test is over, manually drive the sleeve 132 to move upward to reset. During the upward movement of the sleeve 132, the valve plate 141 is pushed to move through the inclined surface at the top of itself, so that the valve plate 141 blocks the interior of the exhaust pipe 111.

[0068] Moreover, to further prevent the sleeve 132 from moving upward under the action of vibration. The secondary fixing mechanism 130 further includes an anti-upward movement component. The anti-upward movement component includes a stop member and a protrusion 134 fixedly arranged on the outer circle of the piston pipe 120. The stop member increases the frictional force between the sleeve 132 and the piston pipe 120 by contacting the protrusion 134 to prevent the sleeve 132 from moving upward. Among them, the inner diameter of the upper half of the sleeve 132 is larger than the inner diameter of the lower half of the sleeve 132, and the stop member is located in the upper half of the sleeve 132.

[0069] In some embodiments, Figure 6 and Figure 7 As shown, the stopper is a rubber ring 135 whose inner ring fits the outer ring of the piston tube 120 and whose outer ring is fixed to the inner ring of the sleeve 132. The rubber ring 135 is located in the upper half of the sleeve 132. Figure 11 As shown, when the sleeve 132 is pressed downward by the counterweight 133, the counterweight 133 drives the rubber ring 135 to move downward and contact the protrusion 134, so that the protrusion 134 squeezes the rubber ring 135, forcing the rubber ring 135 to deform, thereby increasing the friction between the sleeve 132 and the piston tube 120. After the vibration test is completed, the sleeve 132 is manually pushed upward, and the manual pushing force overcomes the friction between the protrusion 134 and the rubber ring 135. At this time, the rubber ring 135 can move upward and disengage from the protrusion 134, thereby realizing the reset of the sleeve 132.

[0070] In other embodiments, Figure 8 As shown, the stopper is an elastic rod 136 with one end sliding through the side wall of the sleeve 132, and the elastic rod 136 is located in the upper half of the sleeve 132, and a mounting spring 137 is provided between one end of the elastic rod 136 and the outer ring of the sleeve 132 to elastically connect the two. In addition, a slope is provided on the top of the protrusion 134. In this way, when the sleeve 132 is pressed down by the counterweight 133, the sleeve 132 drives the elastic rod 136, and the elastic rod 136 moves down and contacts the slope at the top of the protrusion 134. At this time, the elastic rod 136 is pushed by the slope to move toward the outer ring of the sleeve 132. When the elastic rod 136 passes over the protrusion 134, the elastic rod 136 rebounds through the mounting spring 137, and at this time, the bottom of the protrusion 134 blocks the elastic rod 136, thereby preventing the sleeve 132 from moving up. When the vibration test is finished, the sleeve 132 is manually pushed upward to force the elastic rod 136 to deform and bend. At this time, the elastic rod 136 can go over the protrusion 134 to achieve the reset of the sleeve 132.

[0071] Furthermore, in this embodiment, the protrusions 134 may be arranged in a plurality (eg Figure 8 As shown), the downward movement distance of the sleeve 132 can be increased.

[0072] It should be noted that preventing the sleeve 132 from moving upward in the present invention means preventing the total upward movement distance of the sleeve 132 during the vibration process from being greater than the total downward movement distance of the sleeve 132. In other words, as long as the sleeve 132 moves downward to squeeze the ball 131 into the slot 122, the operation of the vibration test device will not be affected.

[0073] It can be seen that by utilizing the pressure of the air flow to drive the piston mechanism to temporarily fix the product 106, and locking the piston mechanism by using the vibration force during the vibration process to continuously fix the product 106. Thus, the number of manual operations is reduced, and the amount of manual operation is decreased.

[0074] The second object of the present invention is to provide a test method for a vibration test device for the firmness of a carrier module, including the following method steps:

[0075] S1. Introduce high-pressure gas into the air delivery pipe 110, so that the air pressure in the air delivery pipe 110 pushes the piston rod 121 downward to clamp the product 106;

[0076] S2. The vibration table 101 drives the air delivery pipe 110, the piston pipe 120, the piston rod 121 and the product 106 to vibrate synchronously. During the upward movement of the sleeve 132, it collides with the counterweight 133, forcing the sleeve 132 to move downward;

[0077] S3. The downward movement of the sleeve 132 squeezes the ball 131 into the interior of the piston pipe 120, forcing the ball 131 to enter the card slot 122 to lock the piston rod 121;

[0078] S4. The sleeve 132 drives the baffle 143 to move downward, so that the end of the baffle 143 is separated from the end of the valve plate 141, and then the valve plate 141 conducts the exhaust pipe 111. The gas in the air delivery pipe 110 passes through the exhaust pipe 111 and is blown onto the product 106 through the nozzle 112.

[0079] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A vibration test device for the firmness of a carrier module, comprising a housing (100), a vibration table (101) elastically arranged on the top of the housing (100), and a vibration assembly for driving the vibration table (101) to generate vibration; characterized in that, It also includes an air delivery pipeline for guiding the air flow around the product (106), a control valve (140) for controlling the on-off of the air delivery pipeline, and a piston mechanism communicated with the air delivery pipeline; wherein: The air delivery pipeline is fixedly connected to the vibration table (101) and is used to move synchronously with the vibration table (101); The piston mechanism elongates by using the pressure in the air delivery pipeline and clamps the product (106) on the top of the vibration table (101); a secondary fixing mechanism (130) is arranged outside the piston mechanism, and the secondary fixing mechanism (130) locks the elongated piston mechanism by using the vibration force; The control valve (140) is located at the exhaust end of the air delivery pipeline and is used to control the air delivery pipeline to be conducted after the secondary fixing mechanism (130) locks the piston mechanism, so that the air flow in the air delivery pipe (110) blows towards the product (106) through the exhaust end.

2. The carrier module firmness vibration test device according to claim 1, characterized in that: The air delivery pipeline includes an air delivery pipe (110) and an exhaust pipe (111) communicated with the bottom of the air delivery pipe (110); The air delivery pipe (110) is fixedly arranged above the vibration table (101), and an air inlet for introducing external air flow is arranged on the side wall; Nozzles (112) facing the product (106) are arranged on the side wall of the exhaust pipe (111); The control valve (140) is arranged in the exhaust pipe (111).

3. The carrier module firmness vibration test device according to claim 2, characterized in that: The piston mechanism includes a piston pipe (120) communicated with the bottom of the air delivery pipe (110) and a piston rod (121) whose top end is slidably arranged in the piston pipe (120), and the piston rod (121) clamps the product (106) on the top of the vibration table (101) under the action of air pressure.

4. The carrier module firmness vibration test device according to claim 3, characterized in that: The secondary fixing mechanism (130) includes a sleeve (132) slidably sleeved on the outer circle of the piston pipe (120) and a counterweight (133); wherein: The inner circle of the lower half part of the sleeve (132) is closely attached to the outer circle of the piston pipe (120), so that the sleeve (132) moves synchronously with the piston pipe (120); The counterweight (133) is located at the top of the sleeve (132) and is used to apply a downward pressure to the sleeve (132); It also includes balls (131) for restricting the movement of the piston rod (121) during the downward movement of the sleeve (132).

5. The carrier module firmness vibration test device according to claim 4, characterized in that: The balls (131) are slidably arranged in the through grooves penetrating the inner and outer circles of the piston pipe (120), and the diameter of the balls (131) is greater than the length of the through grooves; A card slot (122) for the balls (131) to enter is arranged on the outer circle of the piston rod (121); The through grooves are arranged near the bottom of the piston pipe (120).

6. The carrier module firmness vibration test device according to claim 4, characterized in that: The control valve (140) includes a valve plate (141) whose one end horizontally penetrates into the exhaust pipe (111) and a baffle (143) fixedly arranged on the outer circle of the sleeve (132); one end of the valve plate (141) is elastically connected between the top of the outer circle of the exhaust pipe (111), and one end of the valve plate (141) extends to the end of the baffle (143); When the sleeve (132) drives the baffle (143) to move downward, the valve plate (141) conducts the exhaust pipe (111) under the elastic action.

7. The carrier module firmness vibration test device according to claim 4, characterized in that: The secondary fixing mechanism (130) further includes a stopper and a protrusion (134) fixedly arranged on the outer circumference of the piston tube (120). The stopper increases the friction force between the sleeve (132) and the piston tube (120) by contacting the protrusion (134). The inner diameter of the upper half of the sleeve (132) is larger than the inner diameter of the lower half of the sleeve (132), and the stopper is located in the upper half of the sleeve (132).

8. The carrier module firmness vibration test device according to claim 7, characterized in that: The stopper is a rubber ring (135) with an inner circumference fitting the outer circumference of the piston tube (120) and an outer circumference fixed to the inner circumference of the sleeve (132). The rubber ring (135) is located in the upper half of the sleeve (132).

9. The carrier module firmness vibration test device according to claim 7, characterized in that: The stopper is an elastic rod (136) with one end slidably penetrating the side wall of the upper half of the sleeve (132), and there is an elastic connection between one end of the elastic rod (136) and the outer circumference of the sleeve (132). The top of the protrusion (134) is provided with an inclined surface.

10. A test method for a test device of the firmness vibration of a carrier module as described in any one of claims 4-9, characterized in that: It includes the following method steps: S1. Introduce high-pressure gas into the gas transmission pipe (110) so that the air pressure in the gas transmission pipe (110) pushes the piston rod (121) downward to clamp the product (106). S2. The vibration table (101) drives the gas transmission pipe (110), the piston tube (120), the piston rod (121) and the product (106) to vibrate synchronously. During the upward movement of the sleeve (132), it collides with the counterweight (133) to force the sleeve (132) to move downward. S3. The downward movement of the sleeve (132) squeezes the ball (131) into the interior of the piston tube (120), forcing the ball (131) to enter the card slot (122) to lock the piston rod (121). S4. The sleeve (132) drives the baffle (143) to move downward so that the end of the baffle (143) is separated from the end of the valve plate (141), and then the valve plate (141) conducts the exhaust pipe (111). The gas in the gas transmission pipe (110) passes through the exhaust pipe (111) and is blown onto the product (106) through the nozzle (112).

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