A fully automatic tank bottom pressure testing equipment

Abstract

The present invention discloses a fully automatic tank bottom pressure test device, comprising a tank gripping mechanism and a test mechanism; the test mechanism comprises a fixing assembly, a pressurizing assembly and a deformation measuring assembly; the tank gripping mechanism is used to grab a sample tank to the fixing assembly; the fixing assembly comprises at least two clamps, which can be relatively close to each other to apply a clamping force to the sample tank, and can be away from each other to release the clamping force on the sample tank; the pressurizing assembly comprises a sealing member, an air inlet channel and a pressure generating device; the sealing member is used to cooperate with the sample tank, so that a sealed cavity is formed between the tank bottom inside the sample tank and the sealing member; the air inlet channel is used to cooperate with the pressure generating device to provide air pressure for the sealed cavity; the measuring assembly is used to measure the deformation of the tank bottom. The present invention is an unattended fully automatic tank bottom pressure tester, which is used to detect tank bottom pressure data, and can realize continuous and efficient automatic detection of the tested sample.

Description

Technical Field

[0001] The present invention relates to a detection device, in particular to a full-automatic tank bottom pressure resistance detection device. Background Art

[0002] Currently, cans are widely used in the beer and beverage industries due to their environmental and aesthetic advantages. Since cans are generally used to hold beer and carbonated beverages, they generate significant internal pressure, which can easily increase with changes in transportation conditions or external temperature. Furthermore, to reduce costs, factories typically reduce the thickness of aluminum (or other can materials) during can production, which impacts the compressive strength of the can bottom. To ensure that cans maintain good pressure resistance during packaging, transportation, and sales, and to prevent bulging or cracking, can manufacturers typically perform pressure tests on the can bottom to guarantee product quality.

[0003] The tank bottom pressure resistance testing equipment in the existing technology generally requires the operator to stand next to the equipment, place the sample tank on the testing station, and observe the deformation of the tank bottom when pressurized. After the test is completed, the operator needs to remove the sample tank from the equipment and then place the next sample tank to be tested into the equipment for the next test.

[0004] However, the existing can bottom pressure resistance testing equipment has the following defects: it is only suitable for testing a single or a small number of can samples. When it is necessary to test a variety of sample cans of various quantities and sizes, the detection efficiency is low and manpower is wasted; and manual detection readings are prone to data errors, which affect the test results. Summary of the Invention

[0005] In order to overcome the shortcomings of the existing technology, the purpose of the present invention is to provide a fully automatic tank bottom pressure test device that can realize the continuous actions of grabbing the tank, placing the tank, clamping, pressurizing, and testing and measuring, which can effectively improve the testing efficiency. At the same time, the device can realize the full-automatic tank bottom pressure test and tank bottom arch deformation growth measurement functions.

[0006] The purpose of the present invention is achieved by adopting the following technical solutions:

[0007] A fully automatic tank bottom pressure resistance testing device comprises a tank gripping mechanism and a testing mechanism; the testing mechanism comprises a fixing assembly, a pressurizing assembly and a deformation measuring assembly; the tank gripping mechanism is used to grip a sample tank to the fixing assembly; the fixing assembly comprises at least two clamps, which can be relatively close to each other to apply a clamping force to the sample tank and can be moved away from each other to loosen the clamping force on the sample tank; the pressurizing assembly comprises a sealing member, an air inlet channel and a pressure generating device; the sealing member is used to cooperate with the sample tank to form a sealed cavity between the tank bottom inside the sample tank and the sealing member; the air inlet channel is used to cooperate with the pressure generating device to provide air pressure for the sealed cavity; the measuring assembly is used to measure the deformation of the tank bottom.

[0008] Furthermore, the can-grabbing mechanism includes a support frame, a clamping claw for grabbing or putting down the sample can, a robotic arm provided with the clamping claw and slidably connected to the support frame, a lifting device for cooperating with the lifting and lowering of the robotic arm, and a rotation drive device; the rotation drive device is connected to the support frame to drive the robotic arm to rotate to different positions to grab or put down the can; the robotic arm is provided with a grabbing drive device for driving the opening and closing of the clamping claw; the lifting device includes a lifting drive device and a supporting part that can be driven by the lifting drive device to lift and lower; when the supporting part is driven to rise, it supports the robotic arm to rise; when the supporting part is driven to descend, the supporting part is separated from the robotic arm, and the robotic arm slides down under the action of its own weight.

[0009] Furthermore, the rotation drive device is a rotary motor.

[0010] Furthermore, the fixing assembly includes at least one clamping cylinder connected to the clamp; the clamp connected to the clamping cylinder can move closer or farther to cooperate with other clamps to provide or loosen the clamping force on the sample can.

[0011] Furthermore, the fixing assembly also includes a sleeve, which is detachably connected to the clamp; the sleeve extends into the clamping space surrounded by the clamp, and the minimum clamping diameter formed between the clamps is smaller than the minimum clamping diameter of the sleeve.

[0012] Furthermore, the pressurizing assembly includes a pressure rod, the end of which is connected to an extrusion member; and a support seat movably mounted on the pressure rod; the sealing member is an elastic sealing member, which is movably mounted on the pressure rod and is located between the extrusion member and the support seat;

[0013] The pressurizing assembly further includes an extrusion drive device, which is used to drive the extrusion member to move toward the support seat, so that the sealing member expands circumferentially, thereby causing the sealing member to abut against the inner wall of the sample tank, thereby forming the sealed cavity between the sealing member and the bottom of the sample tank.

[0014] Furthermore, the deformation measurement assembly includes a supporting beam, a micrometer and a measuring rotation drive device, the micrometer is provided at one end of the supporting beam, and the rotation drive device is provided on the other side; the rotation drive device is used to drive the supporting beam to swing, and the micrometer has a retractable micrometer needle.

[0015] Furthermore, the invention further comprises a can intercepting mechanism, which comprises a conveying device, and further comprises a first can intercepting device and a second can intercepting device sequentially spaced along the conveying direction of the conveying device; the conveying device is used to convey the sample can; when the second can intercepting device is in the can intercepting state, it is used to intercept the sample can at the can grabbing station to cooperate with the can grabbing mechanism; when the second can intercepting device is in the can releasing state, the conveying device can discharge the sample can from the can grabbing station to the can intercepting mechanism;

[0016] When the first can intercepting device is in the can intercepting state, it is used to intercept the sample can at the waiting position to wait for the sample can located at the can grabbing position to be grabbed.

[0017] Furthermore, it also includes a slip monitoring mechanism; the slip monitoring mechanism includes a tank retracting top sleeve, a reading head and a grating ruler; the tank retracting top sleeve is used to abut against the sample tank, the tank retracting top sleeve is connected to the reading head, and the reading head is slidably connected to the grating ruler.

[0018] Furthermore, it also includes a can withdrawal mechanism, which includes a can withdrawal top sleeve and a can withdrawal driving device. The can withdrawal driving device is used to move the can withdrawal top sleeve upward, thereby pushing the sample can to separate from the fixing assembly.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] Through the cooperation between the can grabbing mechanism and the detection mechanism, the can grabbing mechanism can grab the sample can from the inspection area to the detection station in the detection mechanism; and the fixing component can clamp the sample can after it is placed in the detection station through the cooperation between the clamps; after the fixing component clamps the sample can, the sealing component in the pressurizing component can cooperate with the sample can to seal the space inside the can to form a sealed cavity, so as to facilitate the air inlet channel to pressurize the sealed cavity; the measuring component can be used to measure the deformation of the bottom of the can after pressurization; at the same time, since the clamps can open and close relative to each other, when the clamps move away from each other, the can grabbing mechanism can grab the tested sample can away from the detection station, so as to facilitate the next sample can to be tested.

[0021] The fully automatic tank bottom pressure resistance testing equipment of the present invention realizes the continuous actions of grabbing the tank, releasing the tank, clamping, pressurizing, and testing and measuring by integrating the tank grabbing mechanism and the testing mechanism; through the setting of the fixed components in the testing mechanism, it is convenient to realize the coherent and efficient detection of the sample tank to be tested, and at the same time, it can realize the measurement of the fully automatic tank bottom pressure resistance value and the tank bottom arch deformation growth function on one device, and at the same time, it can improve the accuracy of tank bottom deformation detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the fully automatic tank bottom pressure testing equipment of the present invention;

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the can gripping mechanism of the present invention;

[0024] Figure 3 for Figure 2 A magnified view of part A in FIG;

[0025] Figure 4 This is one of the principle diagrams of the cooperation between the lifting device of the can-grabbing mechanism of the present invention and the mechanical arm of the support frame;

[0026] Figure 5 This is the second schematic diagram of the cooperation between the lifting device of the can-grabbing mechanism of the present invention and the mechanical arm of the support frame;

[0027] Figure 6 This is a schematic diagram of the internal structure of the can gripping mechanism of the present invention;

[0028] Figure 7 is a schematic diagram of the three-dimensional structure of the fixing assembly of the present invention;

[0029] Figure 8 is a top view of the fixing assembly of the present invention;

[0030] Figure 9 This is a schematic diagram of the use of the jacket of the present invention;

[0031] Figure 10 is a schematic diagram of the pressurizing component of the present invention in a non-pressurized state;

[0032] Figure 11 is a schematic diagram of the pressurizing assembly of the present invention in a sealed pressurized state;

[0033] Figure 12 Schematic diagram of the internal structure of the detection mechanism of the present invention;

[0034] Figure 13 for Figure 12 A magnified view of part B in FIG;

[0035] Figure 14 It is a structural schematic diagram of the can blocking mechanism of the present invention;

[0036] Figure 15 Schematic diagram of the slippage monitoring mechanism and tank return mechanism of the present invention;

[0037] In the figure: 10, can gripping mechanism; 11, support frame; 111, limiting pillar; 12, mechanical arm; 121, clamping claw; 122, grabbing drive device; 1221, release claw cylinder; 1222, spring; 1223, swing arm; 1224, gear set; 131, lifting drive device; 132, supporting part; 14, rotation drive device; 151, angle detection photoelectric switch; 152, switch paddle; 20, detection mechanism; 21, fixing assembly; 211, clamp; 212, clamping cylinder; 213, jacket; 214, fixing bracket; 22, pressurizing assembly; 221, sealing member; 222, air inlet channel; 223, pressure rod ; 224. Extrusion part; 225. Support seat; 226. Extrusion drive device; 227. Pressurized bracket; 228. Rubber gasket; 23. Deformation measurement component; 231. Support beam; 232. Micrometer; 233. Measuring rotation drive device; 2331. Pneumatic drive device; 234. Protective cover; 30. Can intercepting mechanism; 31. Conveying device; 32. First can intercepting device; 33. Second can intercepting device; 34. Can intercepting photoelectric switch; 40. Slip monitoring mechanism; 41. Grating scale; 51. Can return top sleeve; 52. Can return drive device; 60. Discharge bin; 90. Sample can; 91. Sealing chamber; 92. Jacket placement seat. DETAILED DESCRIPTION

[0038] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0039] like Figure 1-15As shown, a fully automatic tank bottom pressure resistance testing equipment includes a tank grabbing mechanism 10 and a testing mechanism 20, and also includes a frame; the tank grabbing mechanism 10 is used to grab a sample tank 90 from a waiting area to be tested to a fixing component 21 in the testing mechanism 20 to realize pressurized testing of the tank bottom; the testing mechanism 20 includes a fixing component 21, a pressurizing component 22 and a deformation measuring component 23; the fixing component 21 is used to clamp the sample tank 90 to ensure that the sample tank 90 does not leave the testing station during the pressurizing operation, the pressurizing component 22 is used to manufacture a sealed cavity 91 and realize the pressurizing operation, and the deformation measuring component 23 is used to measure the deformation of the bottom arch of the tank bottom. The fixing assembly 21 includes at least two clamps 211, which can be relatively close to each other to apply clamping force to the sample tank 90, and can be moved away from each other to loosen the clamping force on the sample tank 90; the pressurizing assembly 22 includes a seal 221, an air inlet channel 222 and a pressure generating device; the seal 221 is used to cooperate with the sample tank 90 to form a sealed cavity 91 between the tank bottom inside the sample tank 90 and the seal 221; the air inlet channel 222 is used to cooperate with the pressure generating device to provide air pressure for the sealed cavity 91; the measuring assembly is used to measure the deformation of the tank bottom.

[0040] The operating principle of the fully automatic tank bottom pressure testing equipment of this embodiment is as follows:

[0041] The can grabbing mechanism 10 grabs a single sample can 90 from the inspection area to the inspection station, the fixing component 21 is arranged at the inspection station, the clamp 211 is driven by the driving device to achieve relative proximity to clamp the sample can 90, the sealing member 221 is driven to contact the sample can 90 to form a sealed cavity 91, the pressure generating device is turned on, and the sealed cavity 91 is pressurized through the air inlet channel 222, so that the deformation of the can bottom is measured and observed by the measuring component to achieve constant pressure length or constant height pressure measurement; when the measurement is completed, the clamp 211 is driven by the driving device to achieve relative distance to loosen the clamping force on the sample can 90, the sealing member 221 shrinks circumferentially and moves away from the inner wall of the sample can 90 and returns to its original state, the can grabbing mechanism 10 can grab the inspected sample can 90 from the inspection station to the recovery station to free up the inspection station for the next round of inspection. The fully automatic tank bottom pressure resistance testing equipment of this embodiment facilitates continuous, coherent and efficient testing of the sample tank 90 to be tested by integrating the tank gripping mechanism 10 and the testing mechanism 20 and setting the fixed component 21 in the testing mechanism 20, while improving the accuracy of tank bottom deformation detection.

[0042] Preferably, if Figure 1-6As shown, in order to enable the can-grabbing mechanism 10 to flexibly grasp sample cans 90 of different heights or sample cans 90 at different grasping heights, the can-grabbing mechanism 10 is configured to be able to automatically adapt to the height of the sample can 90; the can-grabbing mechanism 10 includes a support frame 11, a clamping claw 121 for grasping or putting down the sample can 90, a mechanical arm 12 provided with the clamping claw 121, and a lifting device for cooperating with the mechanical arm 12 to rise and fall; the mechanical arm 12 is slidably connected to the frame and the rotation drive device 14; the rotation drive device 14 is connected to the support frame 11 to drive the support frame 11 to rotate, thereby moving the clamping claw 121 to different workstations; the mechanical arm 12 is provided with a grasping drive device 122 for driving the clamping claw 121 to open and close; the lifting device includes a lifting drive device 131 and a supporting portion 132 that can be driven by the lifting drive device 131 to rise and fall; as shown Figure 4 As shown, when the supporting portion 132 is driven to rise, the supporting portion 132 abuts against the matching portion of the robot arm 12 to push the supporting robot arm 12 to rise; Figure 5 As shown, when the supporting portion 132 is driven to descend, the robotic arm 12 slides down along the support frame 11 under the action of its own weight. By cooperating with the rotating drive device 14 and the robotic arm 12, the can-grabbing mechanism 10 can grasp and place the sample can 90 at different positions, making the inspection process smoother and faster; by cooperating with the lifting device and the robotic arm 12, when it is necessary to grasp the sample can 90, as shown in FIG. Figure 5 As shown, the lifting drive device 131 drives the supporting part 132 to move downward, thereby separating the supporting part 132 from the robotic arm 12. No external driving force is required to push the robotic arm 12 downward. Only the deadweight is needed to make the clamp 121 fall to the top of the sample tank 90. ​​The clamp 121 can grab the sample tank 90, avoiding the situation where the sample tank 90 is excessively squeezed when the external driving force pushes the robotic arm 12, causing the sample tank 90 to be broken.

[0043] Specifically, in order to trigger the grasping drive device 122 to work when the gripper 121 falls to the top of the sample jar 90 and the robotic arm 12 slides into position, a pressure sensing device or a photoelectric sensing device is provided on the robotic arm 12 or the gripper 121 to transmit a position signal.

[0044] Preferably, if Figure 1 、 2 As shown, in order to save equipment space, this embodiment is provided with a can-grabbing rotation drive device to connect the mounting frame to drive the robot arm 12 to rotate, so that the clamping claw 121 rotates to above the inspection area, the inspection station, and the recovery area, so as to facilitate the grabbing or placing of the can.

[0045] like Figure 2-5 As shown, in this embodiment, the pulling drive device 131 is a pulling cylinder; the can rotation drive device is a stepping motor, and the stepping motor shaft is connected to the mounting bracket; Figure 6As shown, the grasping drive device 122 includes a claw release cylinder 1221, a swing arm 1223, a gear set 1224 and a spring 1222. The main body of the robot arm 12 is provided with a protruding shaft, and the swing arm 1223 is installed on the protruding shaft and can swing around it. With the protruding shaft as a reference, the two ends of the swing arm 1223 are respectively connected to the claw release cylinder 1221 and the gear set 1224; one end of the spring 1222 is connected to the end of the swing arm 1223 away from the gear set 1224, and the other end of the spring 1222 is connected to the main body of the robot arm 12 ; A plurality of clamping jaws 121 are connected to the gear set 1224, and the clamping jaws 121 are provided with rubber rings to enhance friction; when the loosening jaw cylinder 1221 is extended, the clamping jaws 121 are hooked back and opened through the gear set 1224, and when the loosening jaw cylinder 1221 is retracted, it is separated from the clamping jaws 121, and the clamping jaws 121 clamp the sample can under the action of the spring 1222 force. Only the spring 1222 force is used to drive the clamping action, which can avoid damage to the can due to excessive cylinder force. This can also be suitable for clamping sample cans of different diameters, and the clamping force can be automatically adjusted.

[0046] Preferably, if Figure 2 As shown, in the can grabbing mechanism 10, a limiting pillar 111 is provided on the support frame 11 to cooperate with other stopping components to prevent the robotic arm 12 from rotating too far. At the same time, the can grabbing mechanism 10 is provided with a plate body fixedly connected to the stepper motor body, and an angle detection photoelectric switch 151 or a switch paddle 152 is fixed on the plate body. The switch paddle 152 or the angle detection photoelectric switch 151 is provided on the rotating shaft that rotates synchronously with the robotic arm 12 and the stepper motor shaft. The photoelectric switch cooperates with the switch paddle 152. When the stepper motor is working, one of the two rotates relative to each other around the same rotating axis, and the other is fixed. Through the cooperation of the angle detection photoelectric switch 151 and the switch paddle 152, in conjunction with a conventional photoelectric signal transmission and control processing system, the initial position zero point setting and resetting of the rotation can be performed in real time, thereby monitoring or judging the rotation angle of the robotic arm 12 driven by the stepper motor, so as to ensure that the robotic arm 12 accurately rotates back and forth between several workstations and smoothly grabs and places the cans.

[0047] Preferably, if Figure 1 、 7 As shown in Figures 8 and 9, the fixing assembly 21 includes at least one clamping cylinder 212 connected to a clamp 211. The clamp 211 connected to the clamping cylinder 212 can move closer or farther to cooperate with other clamps 211 to provide or release the clamping force on the sample can 90. The fixing assembly 21 also includes a fixing bracket 214, which connects the clamp 211, the clamping cylinder 212, and the frame of the entire machine.

[0048] Specifically, the number of the clamps 211 in this embodiment is 2, and the clamps 211 are all semicircular clamps 211. Figure 7 、 8As shown, two cylinders can be provided in the fixing assembly 21 to respectively control the opening and closing of the two semicircular clamps 211. Figure 9 As shown, the two semicircular clamps 211 can also be fixed on one side and opened and closed by a cylinder on the other side.

[0049] Preferably, if Figure 9 As shown, in order to make the fully automatic tank bottom pressure resistance testing equipment applicable to the testing of sample tanks 90 with different tank body diameters, the fixing assembly 21 also includes a jacket 213, which is detachably connected to the clamp 211; the jacket 213 extends into the clamping space surrounded by the clamps 211, and the minimum clamping diameter formed between the clamps 211 is larger than the minimum clamping diameter of the jacket 213; that is, the jacket 213 is sleeved in the clamp 211, and compared with the clamp 211, the fixing assembly provided with the jacket 213 can fix the sample tank 90 with a smaller tank body diameter.

[0050] Specifically, in this embodiment, a special semicircular clamp 211 is provided for beer cans and beverage cans with a conventional body diameter of 211, so that positioning is more accurate and operation is simple. At the same time, the jacket 213 of this embodiment is a detachable jacket 213. For beer cans and beverage cans with body diameters of 202 and 204 (smaller in diameter than 211 cans), a semicircular jacket 213 of a corresponding diameter can be provided and placed directly on the original semicircular clamp 211 and fixed with screws. This is suitable for testing sample cans with various diameters, and replacing the jacket 213 is quick and easy. Figure 1 As shown, the jacket placement seat 92 is used to place the jacket 213.

[0051] Preferably, in this embodiment, dual inspection stations are provided, that is, dual fixing components 21 and dual pressurizing components 22 are provided, and a deformation measuring component 23 is shared between the two stations; one station is not provided with a jacket 213, and the other station is provided with a jacket 213, so that if the sample cans 90 to be inspected include two types of can body diameters, no parts need to be replaced to simultaneously measure sample cans 90 of two types of can body diameters.

[0052] Preferably, if Figure 1 、 10As shown in Figures 11 and 12, in order to achieve pressurization and to enable the pressurizing assembly 22 to adapt to the inspection scenarios of sample cans 90 with different can diameters, the pressurizing assembly 22 includes a pressure rod 223, the end of which is connected to an extrusion member 224; a support seat 225 movably mounted on the pressure rod 223; a sealing member 221 is an elastic sealing member 221 movably mounted on the pressure rod 223 and located between the extrusion member 224 and the support seat 225; and an extrusion drive device 226 for driving the extrusion member 224 to move along the pressure rod 223 toward the support seat 225, so as to cause the seal 221 to expand circumferentially, thereby causing the seal 221 to abut the inner wall of the sample can 90, thereby forming a sealed cavity 91 between the seal 221 and the bottom of the sample can 90. The extrusion drive device 226 in this embodiment is a cylinder.

[0053] Specifically, if Figure 10 、 11 As shown, the pressurizing assembly 22 further includes a pressurizing bracket 227 to connect the pressurizing assembly 22 to the equipment frame to fix the extrusion driving device 226 to ensure that the pressure rod 223 is pushed in a straight line.

[0054] During the test, the sample tank 90 is inserted along the end of the pressure rod 223, so that the sealing member 221 and the extrusion member 224 are placed in the tank body of the sample tank 90; the extrusion member 224 can move towards or away from each other relative to the support seat 225; when the extrusion member 224 moves towards each other relative to the support seat 225, the extrusion member 224 and the support seat 225 jointly squeeze the sealing member 221, and make the columnar sealing member 221 expand along the circumferential direction, so that the columnar sealing member 221 abuts against the inner wall of the tank body, and then a sealed cavity 91 is formed between the columnar sealing member 221 and the bottom of the tank body, and the pressure generating device provides air pressure to the sealed cavity 91 through the air inlet channel 222.

[0055] When the extruding member 224 moves away from the supporting seat 225 , the sealing member 221 shrinks in the circumferential direction and moves away from the inner wall of the sample tank 90 to restore its original shape.

[0056] Specifically, the pressure generating device in this embodiment is an air pump.

[0057] Specifically, the fully automatic tank bottom pressure test device of the present invention can jointly squeeze the columnar seal 221 through the extrusion member 224 and the support seat 225, so that the fully automatic tank bottom pressure test device can determine the degree of squeezing of the seal 221 according to the inner diameter of the tank body, thereby making it possible for the fully automatic tank bottom pressure test device to conveniently perform tank bottom pressure tests on sample tanks 90 with different inner diameter sizes, without having to replace or debug other tools, thereby greatly improving work efficiency. In addition, the degree of sealing between the seal 221 and the inner wall of the tank body depends on the degree to which the columnar seal 221 is squeezed. Therefore, the fully automatic tank bottom pressure test device of the present invention is less likely to have a loose seal. Compared with the prior art method of sealing only through the friction and elastic action of the sealing ring, the sealing performance is further improved, thereby reducing the number of maintenance events and further improving work efficiency.

[0058] Preferably, a rubber gasket 228 is provided on the side of the support seat 225 close to the extrusion piece 224, and the rubber gasket 228 abuts the seal 221; at the same time, the extrusion piece 224 is a rubber extrusion piece 224; the seal 221 is supported by the rubber gasket 228 and the extrusion piece 224, which can reduce the damage rate of the seal 221.

[0059] Preferably, in order to cooperate with the pressurizing component 22 to detect the deformation of the tank bottom during the pressurizing process, the deformation measuring component 23 includes a supporting beam 231, a micrometer 232 and a measuring rotation drive device 233. A micrometer 232 is provided at one end of the supporting beam 231, and a rotation drive device is provided on the other side; the rotation drive device is used to drive the supporting beam 231 to swing, and the micrometer 232 has a retractable micrometer needle.

[0060] Specifically, if Figure 1 、 12 As shown in Figures 13 and 13, the measuring rotation drive device 233 of the micrometer 232 includes a pneumatic drive device 2331 and a linkage device, which are respectively connected to the starting drive device and the support beam 231, so that when the starting drive device is extended and retracted, the support beam 231 swings. Those skilled in the art can set the linkage device according to actual needs to achieve this effect. Pneumatics are used to lower the micrometer needle to the detection position during measurement to perform deformation detection. The principle of detecting deformation parameters using the micrometer 232 is conventional technology in this field and will not be repeated here. When picking up and placing a can, the micrometer needle is raised so as not to affect the picking up and placing of the can by the can gripping mechanism 10. The rotation drive device is used to swing the micrometer 232 to the other of the two workstations for measurement, so that a set of deformation measurement components 23 is shared. In addition to using the micrometer 232 to measure the deformation of the bottom arch of the can, the grating ruler 41 can also be used to monitor the slippage of the can body.

[0061] Specifically, in order to ensure that the micrometer needle of the micrometer 232 is not easily damaged and to prevent the precision micrometer 232 from being crushed during rotation or when the tank falls off, a metal protective cover 234 is installed at the front end of the supporting beam 231. The micrometer needle passes through the metal protective cover 234 and can freely extend and retract in the protective cover 234. The height of the protective cover 234 is 1-2 mm higher than when the micrometer needle is retracted, which can effectively protect the needle from being crushed.

[0062] Preferably, if Figure 14 As shown, in order to facilitate the clamping claws 121 of the can-grabbing mechanism 10 to accurately grasp a single sample can 90, the fully automatic can bottom pressure resistance testing equipment further includes a can-blocking mechanism 30. The can-blocking mechanism 30 includes a conveying device 31. In this embodiment, the conveying device 31 is a conveyor belt. The conveying device 31 is used to convey the sample can 90. One end of the conveying device 31 is a can inlet end, and the other end is a can outlet end. The conveying device 31 also includes a first can-blocking device 32 and a second can-blocking device 33 arranged in sequence along the conveying direction of the conveying device 31. When the second can-blocking device 33 is in the can-blocking state, it is used to block the sample can 90 at the can-grabbing station to cooperate with the can-grabbing mechanism 10. When the second can-blocking device 33 is in the can-releasing state, the conveyor belt can discharge the sample can 90 from the can-grabbing station to the can-blocking mechanism 30. When the first can-blocking device 32 is in the can-blocking state, it is used to block the sample can 90 at the waiting station to ensure that there is only one sample can 90 between the second can-blocking device 33 and the first can-blocking device 32, waiting for the sample can 90 at the can-grabbing station to be grabbed.

[0063] Specifically, in this embodiment, the first can blocking device 32 is a telescopic cylinder, and the second can blocking device 33 is a rotating cylinder. The two cylinders are controlled by a reversing valve at the same time. The air inlets and outlets of the two cylinders are alternately connected, so that the two cylinder shafts extend and retract alternately, which can realize individual can placement.

[0064] Specifically, in order to ensure that the sample can accurately reach the can grabbing station, when the can needs to be stopped at the can grabbing station, the rotary cylinder is controlled to rotate the can grabbing rack out, and the sample can 90 is stopped at the can grabbing station. When the sample can 90 sent back to the conveying device 31 after inspection needs to be discharged, the rotary cylinder is controlled to rotate the can grabbing rack back, and the sample is discharged from the conveying device 31.

[0065] Of course, in addition to discharging the tested sample can 90 through the can blocking mechanism 30, as shown in FIG. Figure 1 As shown, the tested sample cans 90 can also be discharged through the discharge bin 60 .

[0066] Preferably, in order to facilitate can delivery, a three-channel conveyor line (not shown) is connected to the can feeding end of the conveyor belt, with three can delivery channels, which can hold different can types, making it convenient for the operator to place and test multiple cans 90 at the same time.

[0067] Specifically, in order to shorten the waiting time for the conveying tank, during instrument detection, the first tank-blocking cylinder in the machine is extended, and the sample tank 90 input by the conveying line waits in front of the first tank-blocking cylinder and cannot move toward the second tank-blocking cylinder.

[0068] Preferably, in order to detect whether there are sample cans 90 at the can intercepting station and the waiting station, two can intercepting photoelectric switches 34 are provided at intervals on the sides of the conveying device 31 to cooperate with the two can intercepting cylinders to realize the can intercepting action.

[0069] Preferably, if Figure 15 As shown, in order to prevent the can body from slightly slipping on the sealant when pressurizing the sample can 90, which leads to an increase in the bottom arch deformation value, and in order to truly detect the bottom arch deformation value and eliminate the error introduced by the can slip, the full-automatic can bottom pressure resistance testing equipment is also provided with a slip monitoring mechanism 40; the slip monitoring mechanism 40 includes a can retracting top sleeve 51, a reading head and a grating ruler 41; the can retracting top sleeve 51 is used to abut against the sample can 90, the can retracting top sleeve 51 is connected to the reading head, and the reading head and the grating ruler 41 are slidably connected.

[0070] Specifically, during measurement, the mouth of the sample tank 90 contacts the tank-retracting top sleeve 51, and the tank-retracting top sleeve 51 is installed with a tension spring and connected to the grating scale 41 to ensure that the tank-retracting top sleeve 51 moves with the mouth of the sample tank 90. ​​When the pressurization test starts, the tank slip detection grating scale 41 is cleared. During the test, if the sample tank 90 slips, the tank-retracting top sleeve 51 follows the movement, and the grating scale 41 displays the movement value.

[0071] Specifically, the tank-retracting top sleeve 51 and the tank-retracting driving device 52 are only in contact. During measurement, the tank-retracting driving device 52 retracts, the tank-retracting top sleeve 51 and the tank-retracting driving device 52 are separated, and the tank-retracting top sleeve 51 moves following the mouth of the sample tank 90 under the action of the tension spring.

[0072] Preferably, if Figure 1 、 9 As shown in Figures 12 and 13, in order to facilitate the can grasping mechanism 10 to grasp the sample can 90 from the measuring station, that is, from the fixed assembly 21, a can withdrawing mechanism is also included. The can withdrawing mechanism includes a can withdrawing top sleeve 51 and a can withdrawing driving device 52. The can withdrawing top sleeve 51 is used to push the sample can 90 to separate from the fixed assembly 21; the can withdrawing driving device 52 is used to drive the can withdrawing top sleeve 51 to move upward. When the can grasping mechanism 10 drives the clamping jaws 121 to clamp the can body only by the force of the spring 1222, the can withdrawing mechanism provides a counter-thrusting force from another direction to assist in pushing the sample can 90 out of the fixed assembly 21. This avoids the situation where the can body is blocked by the clamp 211 or other components when the can grasping mechanism 10 grasps the sample can 90 from the measuring station to withdraw the can, resulting in insufficient gripping force of the clamping jaws 121 and failure to successfully withdraw the can.

[0073] Preferably, the measuring station (the can clamping area determined by the fixing component 21) is equipped with a photoelectric switch, which detects a signal after the sample can 90 is placed. When the test reset detects that there is a can, it will automatically trigger the sample handling mechanism to clamp the sample can 90 to prepare for the next round of testing.

[0074] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A fully automatic tank bottom pressure test equipment, characterized in that: include: It comprises a can-grabbing mechanism and a detection mechanism; the detection mechanism comprises a fixing assembly, a pressurizing assembly and a deformation measuring assembly; the can-grabbing mechanism is used to grab the sample can to the fixing assembly; the fixing assembly comprises at least two clamps, the clamps can be relatively close to each other to apply a clamping force to the sample can, and can be away from each other to loosen the clamping force on the sample can; the pressurizing assembly comprises a sealing member, an air inlet channel and a pressure generating device; the sealing member is used to cooperate with the sample can to form a sealed cavity between the bottom of the sample can and the sealing member; the air inlet channel is used to cooperate with the pressure generating device to provide air pressure to the sealed cavity; the measuring assembly is used to measure the can. The bottom of the container is deformed, and the container grasping mechanism includes a support frame, a clamping claw for grasping or putting down the sample container, a mechanical arm provided with the clamping claw and slidably connected to the support frame, a lifting device for cooperating with the lifting and lowering of the mechanical arm, and a rotating drive device; the rotating drive device is connected to the support frame to drive the mechanical arm to rotate to different positions to grasp or put down the container; the mechanical arm is provided with a grasping drive device for driving the opening and closing of the clamping claw; the lifting device includes a lifting drive device and a supporting part that can be driven by the lifting drive device to lift and lower; when the supporting part is driven to rise, it supports the mechanical arm to rise; when the supporting part is driven to descend , the supporting part is separated from the mechanical arm, and the mechanical arm slides down under the action of its own weight. The rotation drive device is a rotating motor. The fixing component includes at least one clamping cylinder connected to the clamp; the fixing component also includes a jacket, and the jacket is detachably connected to the clamp; the jacket extends into the clamping space surrounded by the clamp, and the minimum clamping diameter formed between the clamps is smaller than the minimum clamping diameter of the jacket. The pressurizing component includes a pressure rod, and the end of the pressure rod is connected to an extrusion piece; it also includes a support seat movably mounted on the pressure rod; the sealing member is an elastic sealing member, and the sealing member is movably mounted on the pressure rod, and the The sealing member is located between the extrusion member and the support seat; the pressurizing assembly also includes an extrusion driving device, which is used to drive the extrusion member to move toward the support seat so that the sealing member expands in the circumferential direction, thereby causing the sealing member to abut against the inner wall of the sample tank, thereby forming the sealing cavity between the sealing member and the bottom of the sample tank; the deformation measuring assembly includes a supporting beam, a micrometer and a measuring rotation driving device, the micrometer is provided at one end of the supporting beam, and the rotation driving device is provided at the other side; the rotation driving device is used to drive the supporting beam to swing, and the micrometer has a retractable micrometer needle.

2. The fully automatic tank bottom pressure testing equipment according to claim 1, characterized in that: It also includes a can-blocking mechanism, which includes a conveying device, and also includes a first can-blocking device and a second can-blocking device arranged in sequence along the conveying direction of the conveying device; the conveying device is used to convey sample cans; when the second can-blocking device is in the can-blocking state, it is used to block the sample can at the can-grabbing station to cooperate with the can-grabbing mechanism; when the second can-blocking device is in the can-releasing state, the conveying device can discharge the sample can from the can-grabbing station to the can-blocking mechanism; when the first can-blocking device is in the can-blocking state, it is used to block the sample can at the waiting station to wait for the sample can located at the can-grabbing station to be grabbed.

3. The fully automatic tank bottom pressure testing equipment according to claim 1, characterized in that: It also includes a slip monitoring mechanism; the slip monitoring mechanism includes a tank retracting top sleeve, a reading head and a grating ruler; the tank retracting top sleeve is used to abut against the sample tank, the tank retracting top sleeve is connected to the reading head, and the reading head is slidably connected to the grating ruler.

4. The fully automatic tank bottom pressure testing equipment according to claim 1, characterized in that: It also includes a can withdrawal mechanism, which includes a can withdrawal top sleeve and a can withdrawal driving device. The can withdrawal driving device is used to move the can withdrawal top sleeve upward, thereby pushing the sample can to separate from the fixing assembly.

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