A vacuum suction cup adsorption performance testing device

Abstract

The present invention discloses a device for testing the adsorption performance of a vacuum suction cup, which relates to the field of suction cup performance testing and comprises a frame and four supporting foot rods fixedly arranged on the outside of the frame and distributed in a matrix to play a supporting role. A plate chain for transmitting the vacuum suction cup is set up on the inner side of the frame, and a detection platform is fixedly arranged on each plate of the plate chain. The present invention adds a detection platform to the plate of the plate chain, and fixes the suction cup product to be tested on the detection platform with a certain negative pressure through a suction limiting unit. As the plate chain is conveyed, the suction cup product will appear in an inverted state. At this time, a pulling force is generated on the suction cup product through a counterweight unit, so that the suction cup product is kept in an inverted state and under a pulling force for a period of time, so as to check whether the suction cup product meets the standards, and finally the suction cup product that meets the standards will be collected by a discharge unit.

Description

Technical Field

[0001] The invention relates to the field of suction cup performance testing, in particular to an adsorption performance testing device for a vacuum suction cup. Background Art

[0002] The vacuum suction cup is a commonly used picking mechanism in automated production. The bottom of the vacuum suction cup has a silicone rubber skirt that acts as a seal. After the vacuum suction cup is pressed against the surface of the object being picked up, the space between the vacuum suction cup and the object being picked up is evacuated. Under the action of the pressure difference, the vacuum suction cup and the object being picked up can be tightly connected, so that the vacuum suction cup can be used to lift, transfer, and other operations on the object being picked up.

[0003] On the assembly line of vacuum suction cups, after the parts of the vacuum suction cups are assembled, the vacuum suction cups need to be tested for adsorption performance to avoid deflation and leakage, which may result in low adsorption capacity. The common test method now is to adsorb the vacuum suction cup on the test plate with a certain pressure difference, and apply a certain pulling force to the end of the vacuum suction cup away from the plate. If the vacuum suction cup does not separate from the plate within a unit time, it means that the vacuum suction cup product is a finished product; if separation occurs, it means that the vacuum suction cup product is a defective product.

[0004] In the above detection method, since the detection time of a single vacuum suction cup is relatively long, it is impossible to perform detection and packaging on the production line. The vacuum suction cups that need to be detected can only be placed on the test device platform in sequence. After the test time, the vacuum suction cups are collected in sequence, which results in a longer production and packaging cycle for the entire vacuum suction cup. Summary of the invention

[0005] The object of the present invention is to provide a device for testing the adsorption performance of a vacuum suction cup to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a vacuum suction cup adsorption performance test device, comprising: a frame and four supporting foot rods fixedly arranged outside the frame and distributed in a matrix to play a supporting role, a plate chain for conveying the vacuum suction cup is set up on the inner side of the frame, a test platform is fixedly arranged on each plate of the plate chain, and two adjacent test platforms are staggered, and a suction cup product to be tested is placed above each of the test platforms, and the plate chain is driven by a motor, a transmission chain, and a sprocket in the prior art;

[0007] It also includes: a suction limiting unit, which is used to fix the suction cup product to the detection platform body by the effect of pressure difference, the suction limiting unit is arranged inside each of the detection platforms, and a pressure release component is also arranged between the frame and a plurality of the detection platforms;

[0008] A counterweight unit, used for applying a force in a direction away from the testing platform to each suction cup product under testing, wherein the counterweight unit is assembled with the suction cup product;

[0009] The unloading unit is used for automatically guiding and collecting the suction cup products after inspection, and the unloading unit is located at the bottom of the frame.

[0010] Preferably, the suction limiting unit includes an extension tube fixedly arranged on the side wall of the detection platform body, the extension tube is hollow, a central cavity is opened inside the detection platform body, and one end of the extension tube extending into the detection platform body is connected with the central cavity, and a plurality of air holes are also opened on the upper end surface of the central cavity, the suction cup product is covered on the upper end surface of the detection platform body, and the suction cup product covers the plurality of air holes, and a sliding rod is embedded in the axially sliding end of the extension tube away from the detection platform body, and the sliding rod extends into the interior of the extension tube A piston block is fixedly provided at one end and is slidably engaged with the extension tube. A shift block is fixedly installed at the end of the slide rod extending out of the extension tube, and a first spring is fixedly provided between the end of the piston block close to the shift block and the extension tube. A positioning component for limiting the slide rod is provided at the end of the extension tube away from the detection platform body. The suction cup product is covered on the air hole above the detection platform body, and then the slide rod is pulled to reduce the air pressure inside the extension tube and the detection platform body. Under the push of atmospheric pressure, the suction cup product can be fitted with the detection platform body.

[0011] Preferably, the positioning component includes an extension cylinder fixedly arranged on the end of the extension tube away from the detection platform body, the axis of the extension cylinder is perpendicular to the axis of the extension tube, a sliding disk is slidably embedded in the interior of the extension cylinder, and a brake rod that slides through the extension cylinder is fixedly installed inside the sliding disk, a positioning hole is opened on the surface of the middle section of the sliding rod, and the end of the brake rod extending into the extension tube is movably engaged with the positioning hole, a second spring is provided at the end of the sliding disk away from the sliding rod, and a blocking block is fixedly provided at the end of the brake rod away from the sliding rod, during the external sliding process of the extension tube outside the sliding rod, when the brake rod can contact the positioning hole, under the action of the second spring, the brake rod can be driven to quickly embed into the positioning hole, thereby limiting the sliding rod, thereby maintaining the negative pressure state inside the extension tube and the detection platform body.

[0012] Preferably, the pressure relief component comprises two symmetrically distributed limiting rods fixedly mounted on the bottom of the frame, the cross-section of the limiting rods is in the shape of an isosceles trapezoid, the limiting rods are parallel to the extension tube, a lifting block is fixedly mounted on a side wall of the clamping block away from the extension tube, and the cross-section of the lifting block is in the shape of an inverted cone;

[0013] When the brake rod is engaged with the positioning hole, the distances between the lifting block and the limiting rod body and the horizontal plane of the frame are consistent, that is, it is ensured that after the brake rod is engaged with the positioning hole, along with the transmission of the plate chain, the inclined arc surface of the lifting block in the shape of an inverted cone can effectively contact with the limiting rod body whose interface is an isosceles trapezoidal shape, and under the action of the limiting rod body, the lifting block and the clamping block are moved in the direction away from the frame, that is, the brake rod is allowed to withdraw from the positioning hole.

[0014] Preferably, the counterweight unit includes a test cylinder threadedly assembled at the assembly port of the suction cup product, the interior of the test cylinder is hollow, and a counterweight ball is placed inside the test cylinder. When the detection platform placed vertically upward becomes vertically downward due to the transmission of the plate chain, the counterweight ball will roll inside the test cylinder, and finally the counterweight ball will be inverted inside the test cylinder, and the counterweight ball will apply a vertical downward pulling force to the suction cup product through the test cylinder.

[0015] Preferably, a threaded cover is provided at one end of the test column away from the detection platform, and the cover is designed to open and close the test column, add multiple weight balls to the inside of the test column, or replace weight balls with different masses.

[0016] Preferably, the unloading unit includes two unloading slide rails located in parallel below the frame, the two unloading slide rails are fixedly mounted between the supporting foot rods, and each of the unloading slide rails is provided with a unloading port at one end away from the frame. A transmission track is also provided at the bottom of the frame, and the transmission track is located entirely below the two unloading slide rails, wherein the length of the unloading port is greater than the total length of the suction cup product and the test column, that is, in order to ensure that the suction cup product and the test column can effectively fall onto the transmission track through the unloading port, the transmission track is a common belt conveyor.

[0017] Preferably, the unloading slide rail is bent and the bending angle is an obtuse angle. The unloading slide rail is divided into two sections, the upper section has a small inclination angle and is almost vertical, and mainly plays a supporting role for the test column released vertically, and the collision force between the upper section and the test column during the supporting process is also smaller; the lower section has a large inclination angle and is obtuse with the upper end, and mainly plays a guiding role for the test column, so that the test column can slide through the unloading port onto the transmission track.

[0018] Preferably, each of the material unloading slide rails is equipped with an auxiliary material unloading component, and the auxiliary material unloading component includes a curved plate fixedly arranged at the bottom of each of the material unloading slide rails, a cavity is opened inside the curved plate, and the cavity is transparent from top to bottom, and a transmission shaft is rotatably arranged at the upper and lower ends of the cavity, and a gear is fixedly sleeved on the outer surface of the transmission shaft, and a synchronous toothed belt is transmitted between two of the gears, and a bearing plate that plays a bearing and limiting role for the synchronous toothed belt is fixedly arranged inside the cavity, and the bearing plate is slidably fitted with the inner wall of the synchronous toothed belt, and the synchronous toothed belt Limiting grooves are provided on both side walls, and retaining rods slidably engaged with the limiting grooves are fixedly provided on the two pairs of side walls of the cavity. A transmission shaft is shared by the two gears on the same side. A driving motor is fixedly installed on the side wall of one of the unloading slide rails, and the output end of the driving motor is fixedly connected to one of the transmission shafts. As the suction cup product follows the test column to slide down, the sealing lip of the suction cup product will contact the unloading slide rail. The sealing lip is made of silicone rubber and has a large friction with the unloading slide rail, so it needs to be pulled by a synchronous toothed belt in a moving state.

[0019] Preferably, the outer surface of the synchronous toothed belt is provided with a plurality of friction grooves, and the design of the friction grooves can increase the friction between the synchronous toothed belt and the test cylinder and the suction cup product.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention adds a testing platform to the plate body of the plate chain, and fixes the suction cup product to be tested on the testing platform with a certain negative pressure through a suction limiting unit. As the plate chain is conveyed, the suction cup product will appear in an inverted state. At this time, a pulling force is generated on the suction cup product through a counterweight unit, so that the suction cup product is kept in an inverted state and under a pulling force for a period of time, so as to check whether the suction cup product meets the standards. Finally, the suction cup product that meets the standards will be collected by the unloading unit, so that the assembled suction cup product can be tested and packaged on the production line, which effectively shortens the entire production and packaging time of the suction cup product. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the bottom structure of the frame and plate chain of the present invention;

[0024] Figure 3 A top view of the present invention;

[0025] Figure 4 This is a schematic diagram of the internal structure of the detection platform and the extension tube of the present invention;

[0026] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0027] Figure 6 This is a schematic diagram of the internal structure of the test column of the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the limiting rod body and the lifting block of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of the material unloading slide rail of the present invention;

[0030] Fig. 9 This is a schematic diagram of the internal structure of the cavity of the present invention;

[0031] Fig.10 It is a side view of the unloading slide rail and the synchronous toothed belt of the present invention.

[0032] In the figure: 1. frame; 2. supporting foot rod; 3. plate chain; 4. testing platform; 5. suction cup product; 6. unloading slide rail; 7. transmission track; 8. limit rod body; 9. extension tube; 10. air hole; 11. piston block; 12. slide rod; 13. first spring; 14. extension cylinder; 15. slide plate; 16. brake rod; 17. second spring; 18. block; 19. lifting block; 20. positioning hole; 21. test cylinder; 22. counterweight ball; 23. curved plate; 24. cavity; 25. bearing plate; 26. synchronous toothed belt; 27. gear; 28. transmission shaft; 29. ​​friction groove; 30. drive motor; 31. limit groove strip; 32. retaining rod; 33. unloading port. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example 1: Please refer to Figure 1-Figure 7 The adsorption performance testing device of a vacuum suction cup shown in the figure comprises: a frame 1 and four supporting legs 2 fixedly arranged outside the frame 1 and arranged in a matrix to play a supporting role. A plate chain 3 for conveying the vacuum suction cup is arranged on the inner side of the frame 1. A detection platform 4 is fixedly arranged on each plate of the plate chain 3, and two adjacent detection platforms 4 are arranged in a staggered manner. A suction cup product 5 to be tested is placed above each detection platform 4. The plate chain 3 is driven by a motor, a transmission chain, and a sprocket in the prior art.

[0035] It also includes: a suction limiting unit, which is used to fix the suction cup product 5 to the detection platform 4 by the effect of pressure difference, the suction limiting unit is arranged inside each detection platform 4, and a pressure release component is also arranged between the frame 1 and the plurality of detection platforms 4;

[0036] A counterweight unit, used to apply a force in a direction away from the testing platform 4 to each suction cup product 5 under testing, and the counterweight unit is assembled with the suction cup product 5;

[0037] The unloading unit is used for automatically guiding and collecting the suction cup products 5 after inspection, and the unloading unit is located at the bottom of the frame 1.

[0038] The suction limiting unit includes an extension tube 9 fixedly arranged on the side wall of the detection platform body 4, the extension tube 9 is hollow, a central cavity is opened inside the detection platform body 4, and one end of the extension tube 9 extending into the detection platform body 4 is connected with the central cavity, and a plurality of air holes 10 are also opened on the upper end surface of the central cavity, the suction cup product 5 covers the upper end surface of the detection platform body 4, and the suction cup product 5 covers the plurality of air holes 10, the end of the extension tube 9 away from the detection platform body 4 is axially slidably embedded with a slide rod 12, and the end of the slide rod 12 extending into the extension tube 9 is fixedly provided with a slide rod 12 connected to the extension tube 9. A slidingly engaged piston block 11 and a sliding block are fixedly installed at one end of the slide rod 12 extending out of the extension tube 9, and a first spring 13 is fixedly arranged between the end of the piston block 11 close to the sliding block and the extension tube 9. A positioning component that restricts the sliding rod 12 is arranged at the end of the extension tube 9 away from the detection platform body 4. The suction cup product 5 is covered on the air hole 10 above the detection platform body 4, and then the sliding rod 12 is pulled to reduce the air pressure inside the extension tube 9 and the detection platform body 4. Under the push of atmospheric pressure, the suction cup product 5 can be fitted with the detection platform body 4.

[0039] The positioning component includes an extension cylinder 14 fixedly arranged at the end of the extension tube 9 away from the detection platform 4, the axis of the extension cylinder 14 is perpendicular to the axis of the extension tube 9, a sliding disk 15 is slidably embedded in the extension cylinder 14, and a brake rod 16 sliding through the extension cylinder 14 is fixedly installed inside the sliding disk 15, a positioning hole 20 is opened on the surface of the middle section of the slide bar 12, and the end of the brake rod 16 extending into the extension tube 9 is movably engaged with the positioning hole 20, a second spring 17 is arranged at the end of the sliding disk 15 away from the slide bar 12, and a block 18 is fixedly arranged at the end of the brake rod 16 away from the slide bar 12, during the sliding process of the slide bar 12 outside the extension tube 9, when the brake rod 16 can contact the positioning hole 20, under the action of the second spring 17, the brake rod 16 can be driven to quickly embed into the positioning hole 20, thereby limiting the slide bar 12, thereby maintaining the negative pressure state inside the extension tube 9 and the detection platform 4.

[0040] The pressure relief component includes two symmetrically distributed limiting rods 8 fixedly mounted on the bottom of the frame 1. The cross section of the limiting rod 8 is in the shape of an isosceles trapezoid. The limiting rod 8 and the extension tube 9 are parallelly distributed. A lifting block 19 is fixedly installed on one side wall of the clamping block 18 away from the extension tube 9, and the cross section of the lifting block 19 is in the shape of an inverted cone.

[0041] When the brake rod 16 is engaged with the positioning hole 20, the distances between the lifting block 19 and the limiting rod body 8 and the horizontal plane of the frame 1 are consistent, that is, it is ensured that when the brake rod 16 is engaged with the positioning hole 20, along with the transmission of the plate chain 3, the inclined arc surface of the lifting block 19 in the shape of an inverted cone can effectively contact the limiting rod body 8 whose interface is an isosceles trapezoidal shape. Under the action of the limiting rod body 8, the lifting block 19 and the clamping block 18 are moved in the direction away from the frame 1, that is, the brake rod 16 is allowed to withdraw from the positioning hole 20.

[0042] The counterweight unit includes a test cylinder 21 which is threadedly assembled at the assembly port of the suction cup product 5. The interior of the test cylinder 21 is hollow, and a counterweight ball 22 is placed inside the test cylinder 21. When the detection platform 4 placed vertically upward becomes vertically downward due to the transmission of the plate chain 3, the counterweight ball 22 will roll inside the test cylinder 21, and finally the counterweight ball 22 is inverted inside the test cylinder 21. The counterweight ball 22 applies a vertical downward pulling force to the suction cup product 5 through the test cylinder 21.

[0043] A threaded cover is provided at one end of the test column 21 away from the test platform 4. The cover design allows the test column 21 to be opened and closed, and multiple weight balls 22 can be added to the inside of the test column 21, or weight balls 22 of different masses can be replaced.

[0044] The unloading unit includes two unloading slide rails 6 which are distributed in parallel and are located below the frame 1. The two unloading slide rails 6 are fixedly mounted between the supporting foot rods 2. A unloading port 33 is provided on the side end of each unloading slide rail 6 away from the frame 1. A transmission track 7 is also provided at the bottom of the frame 1, and the transmission track 7 is located entirely below the two unloading slide rails 6. The length of the unloading port 33 is greater than the total length of the suction cup product 5 and the test column 21. That is, in order to ensure that the suction cup product 5 and the test column 21 can effectively pass through the unloading port 33 and fall onto the transmission track 7, the transmission track 7 is a common belt conveyor.

[0045] The unloading slide rail 6 is bent, and the bending angle is an obtuse angle. The unloading slide rail 6 is divided into two sections, the upper section has a small inclination angle and is almost vertical, and mainly plays a supporting role for the vertically released test column 21, and the collision force between the upper section and the test column 21 during the supporting process is also smaller; the lower section has a large inclination angle and is obtuse with the upper end, and mainly plays a guiding role for the test column 21, so that the test column 21 can slide through the unloading port 33 to the transmission track 7.

[0046] How this solution works:

[0047] refer to Figure 1 and Figure 2 , the plate chain 3 is intermittently driven counterclockwise inside the frame 1, and two staff members are arranged on both sides of the frame 1. In the idle gap of the transmission, the staff members cover the suction cup product 5 to be tested on the test platform 4. It should be noted that before the suction cup product 5 is placed on the upper end of the test platform 4, the test cylinder 21 needs to be threadedly assembled at the docking interface of the suction cup product 5, wherein there is a silicone gasket between the docking interface of the test cylinder 21 and the suction cup product 5, and the test cylinder 21 is sealed, that is, when the test cylinder 21 and the suction cup product 5 are threadedly connected, the two are in a sealed state;

[0048] After placing the suction cup product 5 equipped with the test cylinder 21 on the upper part of the test platform 4, the slide bar 12 inside the extension tube 9 of the side wall of the test platform 4 is pulled. During the pulling process, the air between the extension tube 9 and the test platform 4 can be sucked by the piston block 11, so that the two are in a negative pressure state. Under the action of the pressure difference, the suction cup product 5 and the test platform 4 can be docked with a certain pressure. During the outward sliding process of the slide bar 12, the brake rod 16 can be embedded in the positioning hole 20, so as to limit the slide bar 12 and prevent the slide bar 12 from resetting and moving at will, so as to keep the negative pressure between the suction cup product 5 and the test platform 4 unchanged;

[0049] With the continuous intermittent transmission of the plate chain 3, the suction cup products 5 can be assembled one by one on several test platforms 4. The suction cup products 5 move with the test platform 4. The suction cup products 5 and the test cylinder 21 gradually change from vertically upward to vertically downward. During the transformation process, the counterweight ball 22 inside the test cylinder 21 will roll inside the test cylinder 21, and finally a vertical downward pulling force is applied to the suction cup product 5 through the test cylinder 21. The suction cup product 5 continues to follow the plate chain 3 for transmission under the applied pressure. By controlling the length of the plate chain 3 and the transmission speed of the plate chain 3, the time for the suction cup product 5 under the negative pressure adsorption state and the downward pulling force to move to the limit rod 8 can be controlled. If the suction cup product 5 does not fall off from the test platform 4 within the specified time, it means that the suction cup product 5 is not a standard part. If it falls off, it means that the suction cup product 5 is a defective product.

[0050] When the detection platform 4 with the suction cup product 5 gradually approaches, contacts, and passes the limiting rod body 8, the limiting rod body 8 can cause the brake rod 16 to disengage from the positioning hole 20 by pushing the lifting block 19. At this time, the slide rod 12 is no longer restricted, and under the action of the first spring 13 in the compressed state, the slide rod 12 and the piston block 11 can be quickly reset, and the air pressure between the extension tube 9 and the detection platform 4 can be gradually restored to atmospheric pressure. At this time, the suction cup product 5 will be separated from the detection platform 4 under the pull of the counterweight ball 22 inside the test cylinder 21, and fall into the unloading slide rail 6, and finally fall to the transmission track 7 through the unloading port 33 under the guidance of the unloading slide rail 6 for transfer.

[0051] The conveying line body in this scheme is placed at the very end of the suction cup product 5 assembly line. After the suction cup product 5 is assembled, it can directly enter the line body in this scheme, so that the adsorption performance of the suction cup product 5 can be tested on the assembly line body in a faster manner, and then directly packaged.

[0052] It is worth noting that a net bag can be installed at the bottom of the frame 1 on the side where the unloading slide rail 6 is not provided. The net bag is mainly used to receive defective products that do not meet the adsorption performance and fall off prematurely.

[0053] Example 2: Please refer to Figure 1 , Figure 8-Figure 10 This embodiment is a further explanation of the embodiment 1. Each material unloading slide rail 6 is equipped with an auxiliary material unloading assembly. The auxiliary material unloading assembly includes a curved plate 23 fixedly arranged at the bottom of each material unloading slide rail 6. A cavity 24 is opened inside the curved plate 23. The cavity 24 is transparent from top to bottom. A transmission shaft 28 is rotatably arranged at the upper and lower ends of the cavity 24. A gear 27 is fixedly sleeved on the outer surface of the transmission shaft 28. A synchronous toothed belt 26 is arranged between the two gears 27 for transmission. A pair of fixed gears are arranged inside the cavity 24. The synchronous toothed belt 26 has a bearing plate 25 that acts as a load-bearing and limiting device. The bearing plate 25 slides in contact with the inner wall of the synchronous toothed belt 26. Both side walls of the synchronous toothed belt 26 are provided with limiting grooves 31, and both pairs of side walls of the cavity 24 are fixedly provided with retaining rods 32 that slide in contact with the limiting grooves 31. A transmission shaft 28 is shared by the two gears 27 on the same side, and a drive motor 30 is fixedly mounted on the side wall of one of the unloading slide rails 6, and the output end of the drive motor 30 is fixedly connected to one of the transmission shafts 28.

[0054] The outer surface of the synchronous toothed belt 26 is provided with a plurality of friction grooves 29 . The design of the friction grooves 29 can increase the friction force between the synchronous toothed belt 26 and the test cylinder 21 and the suction cup product 5 .

[0055] In this embodiment: as the suction cup product 5 follows the test cylinder 21 to slide down, the sealing lip of the suction cup product 5 will contact the unloading slide rail 6. The sealing lip is made of silicone rubber and has a large friction with the unloading slide rail 6. The suction cup product 5 may get hung in the unloading slide rail 6 during the sliding process. For this reason, in this solution, the gear 27 and the synchronous toothed belt 26 are driven by a driving motor 30. Under the support of the bearing plate 25, the limit groove 31 and the retaining rod 32, the synchronous toothed belt 26 can be transmitted with a curvature similar to the unloading slide rail 6. During the transmission process, the suction cup product 5 is in contact with the outer surface of the synchronous toothed belt 26, so that the suction cup product 5 and the test cylinder 21 can be brought down, thereby avoiding the situation where the suction cup product 5 and the test cylinder 21 are not unloaded smoothly due to the excessive friction between the sealing lip of the suction cup product 5 and the unloading slide rail 6.

[0056] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum suction cup adsorption performance testing device, characterized in that: include: A frame (1) and four supporting legs (2) fixedly arranged outside the frame (1) and arranged in a matrix to play a supporting role; a plate chain (3) for conveying vacuum suction cups is arranged on the inner side of the frame (1); a testing platform (4) is fixedly arranged on each plate of the plate chain (3); and two adjacent testing platforms (4) are arranged in a staggered manner; and a suction cup product (5) to be tested is placed above each of the testing platforms (4); Also includes: a suction limiting unit, used for fixing the suction cup product (5) to the detection platform (4) by means of a pressure difference, wherein the suction limiting unit is arranged inside each of the detection platforms (4), and a pressure relief component is also arranged between the frame (1) and a plurality of the detection platforms (4); A counterweight unit, used for applying a force in a direction away from the testing platform (4) to each suction cup product (5) under testing, wherein the counterweight unit is assembled with the suction cup product (5); A discharge unit, used for automatically guiding and collecting the suction cup products (5) after inspection, wherein the discharge unit is located at the bottom of the frame (1); The suction limiting unit comprises an extension tube (9) fixedly arranged on the side wall of the detection platform (4); the extension tube (9) is hollow; a central cavity is provided inside the detection platform (4); one end of the extension tube (9) extending into the detection platform (4) is connected to the central cavity; a plurality of air holes (10) are also provided on the upper end surface of the central cavity; the suction cup product (5) covers the upper end surface of the detection platform (4); the suction cup product (5) covers the plurality of air holes (10); the extension tube (9) is away from the detection platform (4); A slide rod (12) is axially slidably embedded in the end of the platform (4), and a piston block (11) is fixedly arranged at the end of the slide rod (12) extending into the extension tube (9) and slidingly engaged with the extension tube (9). A shift block is fixedly installed at the end of the slide rod (12) extending out of the extension tube (9), and a first spring (13) is fixedly arranged between the end of the piston block (11) close to the shift block and the extension tube (9). A positioning component that restricts the slide rod (12) is arranged at the end of the extension tube (9) away from the detection platform (4); The positioning component comprises an extension cylinder (14) fixedly arranged at the end of the extension tube (9) away from the detection platform (4), the axis of the extension cylinder (14) is perpendicular to the axis of the extension tube (9), a sliding disc (15) is slidably embedded in the interior of the extension cylinder (14), and a brake rod (16) is fixedly installed inside the sliding disc (15) and slides through the extension cylinder (14), a positioning hole (20) is opened on the surface of the middle section of the slide rod (12), and one end of the brake rod (16) extending into the interior of the extension tube (9) is movably engaged with the positioning hole (20), a second spring (17) is arranged at one end of the sliding disc (15) away from the slide rod (12), and a clamping block (18) is fixedly arranged at one end of the brake rod (16) away from the slide rod (12).

2. The device for testing the adsorption performance of a vacuum suction cup according to claim 1, characterized in that: The pressure release component comprises two symmetrically distributed limiting rods (8) fixedly mounted on the bottom of the frame (1), the cross section of the limiting rods (8) being in the shape of an isosceles trapezoid, the limiting rods (8) being in parallel with the extension tube (9), a lifting block (19) being fixedly mounted on a side wall of the clamping block (18) away from the extension tube (9), and the cross section of the lifting block (19) being in the shape of an inverted cone; When the brake rod (16) is engaged with the positioning hole (20), the distances between the lifting block (19) and the limiting rod body (8) and the horizontal plane of the frame (1) are consistent.

3. The device for testing the adsorption performance of a vacuum suction cup according to claim 1, characterized in that: The counterweight unit comprises a test cylinder (21) threadedly mounted at the assembly port of the suction cup product (5); the interior of the test cylinder (21) is hollow, and a counterweight ball (22) is placed inside the test cylinder (21).

4. The device for testing the adsorption performance of a vacuum suction cup according to claim 3, characterized in that: One end of the test column (21) away from the detection platform (4) is provided with a threaded cover.

5. The device for testing the adsorption performance of a vacuum suction cup according to claim 2, characterized in that: The unloading unit comprises two unloading slide rails (6) arranged in parallel below the frame (1); the two unloading slide rails (6) are fixedly mounted between the supporting foot rods (2); a unloading port (33) is provided at one end of each unloading slide rail (6) away from the frame (1); a transmission track (7) is also provided at the bottom of the frame (1), and the transmission track (7) is located entirely below the two unloading slide rails (6).

6. The device for testing the adsorption performance of a vacuum suction cup according to claim 5, characterized in that: The unloading slide rail (6) is bent, and the bending angle is an obtuse angle.

7. The device for testing the adsorption performance of a vacuum suction cup according to claim 6, characterized in that: Each of the material unloading slide rails (6) is equipped with an auxiliary material unloading component, and the auxiliary material unloading component includes a curved plate (23) fixedly arranged at the bottom of each of the material unloading slide rails (6), and a cavity (24) is opened inside the curved plate (23). The cavity (24) is transparent from top to bottom, and a transmission shaft (28) is rotatably arranged at the upper and lower ends of the cavity (24), and a gear (27) is fixedly sleeved on the outer surface of the transmission shaft (28). A synchronous toothed belt (26) is arranged between the two gears (27). A bearing for the synchronous toothed belt (26) is fixedly arranged inside the cavity (24). A bearing plate (25) having a limiting function is provided, the bearing plate (25) is slidably fitted with the inner wall of the synchronous toothed belt (26), both side walls of the synchronous toothed belt (26) are provided with limiting grooves (31), and both pairs of side walls of the cavity (24) are fixedly provided with retaining rods (32) slidably fitted with the limiting grooves (31), the two gears (27) located on the same side share a common transmission shaft (28), a side wall of one of the unloading slide rails (6) is fixedly equipped with a driving motor (30), and the output end of the driving motor (30) is fixedly connected to one of the transmission shafts (28).

8. The device for testing the adsorption performance of a vacuum suction cup according to claim 7, characterized in that: The outer surface of the synchronous toothed belt (26) is provided with a plurality of friction grooves (29).

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