Condenser detection platform with rapid positioning structure

Abstract

This invention relates to the field of condenser testing technology and discloses a condenser testing platform with a rapid positioning structure. The platform includes a frame, an inner mounting platform connected to the top of the frame, a sealing cover hinged to one side of the frame, a hydraulic cylinder connected to the bottom of the inner mounting platform, and a support platform connected to the output end of the hydraulic cylinder through the inner mounting platform. The condenser body is mounted on the top of the support platform. Two sets of winding assemblies are connected to both sides of the inner mounting platform, and cylinders are connected to both sides of the inner mounting platform. This invention, through four independently controlled winding assemblies and traction ropes, and with closed-loop feedback from a speed sensor, enables the support platform to translate in any direction and rotate at any angle in the horizontal plane. It replaces the rigid series slide of the traditional lead screw with the coordinated winding and unwinding of multiple flexible ropes. Combined with a top-mounted visual closed-loop system, it achieves millisecond-level precise alignment of arbitrarily placed workpieces, improving the positioning efficiency of condensers of different specifications.

Description

Technical Field

[0001] This invention relates to the field of condenser testing technology, specifically to a condenser testing platform with a rapid positioning structure. Background Technology

[0002] In the manufacturing process of refrigeration equipment, the condenser is the core heat exchange component. Its sealing test before leaving the factory is an important step to ensure product quality. At present, the differential pressure airtightness test is commonly used for condenser testing. This involves placing the condenser on a test platform, connecting its pipeline to a gas source through a sealed joint, filling it with gas at a certain pressure, and then monitoring the pressure drop to determine whether there is a leak.

[0003] Traditional testing stations often use manual placement of condensers, relying on positioning blocks or visual alignment to adjust their position. Different specifications of condensers have significant differences in size, and the positioning device needs to be readjusted every time the model is changed. This is time-consuming and cumbersome, making it difficult to meet the needs of multi-variety mixed production lines. Moreover, it has poor adaptability to clamping irregular or non-standard condensers. Some condensers have curved pipes or irregular frame structures, making it difficult for rigid clamps to achieve a good fit with the outline. Clamping can easily cause pipe deformation or surface scratches. Summary of the Invention

[0004] The purpose of this invention is to provide a condenser testing station with a rapid positioning structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A frame is included, with an inner mounting platform connected to the top of the frame, a sealing cover hinged to one side of the frame, a hydraulic cylinder connected to the bottom of the inner mounting platform, the output end of the hydraulic cylinder penetrating the inner mounting platform and connected to a support platform, a condenser body being mounted on the top of the support platform, two sets of winding assemblies connected to both sides of the inner mounting platform, a cylinder connected to both sides of the inner mounting platform, clamping assemblies connected to both sides of the inner mounting platform, a feeding assembly connected to one side of the clamping assembly, a partition connected to one side of the inner wall of the inner mounting platform, a T-shaped pipe connected to one side of the partition, a connecting pipe connected to the other end of the T-shaped pipe, the other end of the connecting pipe extending into the frame and connected to an air injection pump, and an industrial camera connected to one side of the sealing cover.

[0006] Preferably, the winding assembly includes a C-frame, a drive motor is connected to the bottom end of the C-frame, the output end of the drive motor extends to the inside of the C-frame and is connected to a winding drum, a speed sensor is connected to the top end of the winding drum, a traction rope is wound around the surface of the winding drum, a rectangular block is connected to the back side of the C-frame, and a spherical guide is rotatably arranged inside the rectangular block.

[0007] Preferably, one side of the C-frame is connected to a component, one output end of the cylinder is connected to a component, and one end of the traction rope passes through the spherical guide and is connected to the support platform.

[0008] Preferably, the support platform includes a rotating platform, a platform plate is connected to the top of the rotating platform, a plurality of bullseye ball bearings are connected to the bottom of the platform plate, the platform plate is octagonal, and a connecting platform is provided at each diagonal, a rotating ball bearing is rotatably arranged in each connecting platform, the rotating ball bearing is connected to the traction rope, and an anti-slip pad is connected to the top of the platform plate.

[0009] Preferably, guide holes are provided on both sides of the inner mounting platform, and the rectangular block is slidably disposed inside the guide holes.

[0010] Preferably, the clamping assembly includes a second cylinder fixedly disposed on the outside of the inner mounting platform. The output end of the second cylinder passes through the inner mounting platform and is connected to a clamping plate. A guide rod is connected to the back side of the clamping plate, an elastic bladder is connected to the other side of the clamping plate, and a control coil is connected to the back side of the clamping plate.

[0011] Preferably, the inner side of the inner mounting platform has a fitting groove corresponding to the clamping plate and the control coil, and one side of the clamping plate is connected to the feeding assembly.

[0012] Preferably, the feeding assembly includes a fixed frame fixedly mounted on the surface of the inner mounting platform. Multiple sets of syringes are connected to one side of the fixed frame. A connecting rod is connected to one side of the syringe. One end of the connecting rod extends into the syringe and is connected to a piston. A connecting plate is connected to the other end of the connecting rod. The other side of the connecting plate is connected to a guide rod. A connecting tube is connected to one end of the syringe.

[0013] Preferably, the connecting tube passes through the clamping plate and communicates with the elastic bladder, and the syringe is filled with magnetorheological fluid.

[0014] In summary, the beneficial effects of this invention are: This application utilizes four independently controlled winding components in conjunction with traction ropes. Under the closed-loop feedback of a speed sensor, it enables the bearing platform to translate in any direction and rotate at any angle within the horizontal plane, eliminating the need for manual adjustment of positioning blocks. The coordinated winding and unwinding of multiple flexible ropes replaces the rigid series slide of the traditional lead screw. Combined with a top-view closed-loop vision system, it achieves millisecond-level precise alignment of arbitrarily placed workpieces, improving the positioning efficiency of condensers of different specifications. An elastic bladder combined with magnetorheological fluid is employed; during clamping, the elastic bladder adaptively conforms to the irregular contours of the condenser, and after energization, the magnetorheological fluid hardens and solidifies, achieving perfect alignment with the workpiece's shape. The clamping mechanism provides a secure fit, preventing indentations, scratches, or pipe deformation caused by rigid clamps. The advancing motion of the clamping component synchronously drives the feeding component to inject magnetorheological fluid into the elastic bladder. When the clamp retracts, it retracts synchronously, eliminating the need for additional operations and simplifying the workflow. The air pump inflates the condenser through a three-way pipe for airtightness testing. Combined with the sealed environment of the sealing cap, this ensures the accuracy and reliability of the test results. Bullseye ball bearings are installed on the bottom surface of the support platform, making rolling contact with the bottom surface of the inner mounting platform, reducing moving friction and ensuring stability during position adjustment, preventing displacement or damage to the condenser due to impact. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a condenser testing platform with a rapid positioning structure according to the present invention; Figure 2 This is a side sectional view of a condenser testing platform with a rapid positioning structure according to the present invention. Figure 3 This is a partial structural diagram of a condenser testing platform with a rapid positioning structure according to the present invention; Figure 4 This is a schematic diagram of the support platform in a condenser testing station with a rapid positioning structure according to the present invention; Figure 5 This is a schematic diagram of the feeding assembly and clamping assembly in a condenser testing station with a rapid positioning structure according to the present invention; Figure 6 for Figure 2 Enlarged structural diagram of section A.

[0016] In the diagram: 1. Frame; 2. Inner mounting platform; 3. Sealing cover; 4. Hydraulic cylinder; 5. Support platform; 51. Rotating platform; 52. Platform plate; 53. Bullseye ball bearing; 54. Connecting platform; 55. Rotating ball bearing; 56. Anti-slip pad; 6. Condenser body; 7. Rewinding assembly; 71. C-frame; 72. Drive motor; 73. Rewind drum; 74. Speed ​​sensor; 75. Traction rope; 76. Rectangular block; 77. Spherical guide; 8. Cylinder 1; 9. Connecting plate; 10. Feeding assembly; 101. Fixing frame; 102. Injector; 103. Piston; 104. Connecting rod; 105. Connecting plate; 106. Connecting pipe; 11. Clamping assembly; 111. Cylinder II; 112. Clamping plate; 113. Guide rod; 114. Elastic bladder; 115. Control coil; 12. Partition plate; 13. T-pipe; 14. Connecting pipe; 15. Air pump; 16. Guide hole; 17. Industrial camera. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1-6 The present invention provides a technical solution comprising: a frame 1, which is a rectangular frame structure and serves as the overall support skeleton of the device; an inner mounting platform 2 is fixedly installed inside the top of the frame 1; a sealing cover 3 is hinged to one side of the frame 1 and can be flipped up to close, forming a closed testing environment during testing; a hydraulic cylinder 4 is fixedly installed at the bottom of the inner mounting platform 2, with its output end vertically extending upward through the bottom surface of the inner mounting platform 2, and a support platform 5 rotatably connected to its end; the support platform 5 is used to place the condenser body 6 to be tested; and the hydraulic cylinder 4 can drive the support platform 5 to rise and fall as a whole to accommodate condensers of different heights.

[0019] The support platform 5 includes a rotating platform 51, the bottom surface of which is rotatably connected to the output end of the hydraulic cylinder 4. A platform plate 52 is fixedly connected to the top of the rotating platform 51. The platform plate 52 is octagonal, and multiple sets of bullseye balls 53 are evenly distributed on its bottom surface. The balls of the bullseye balls 53 roll in contact with the inner bottom surface of the inner mounting platform 2, providing multi-point rolling support for the platform plate 52 and ensuring low friction and high flexibility when the platform plate 52 moves and rotates in the horizontal direction. A connecting platform 54 is fixedly connected to each of the four opposite corners of the platform plate 52. A rotating ball 55 is rotatably installed in each connecting platform 54. The rotating ball 55 is located below the platform plate 52 and is used to fixally connect to the traction rope 75 of the winding assembly 7. An anti-slip pad 56 is fixedly connected to the top of the platform plate 52. The anti-slip pad 56 is made of rubber or silicone and has an anti-slip texture on its surface. It is used to place the condenser body 6 and prevent it from sliding during the position adjustment process.

[0020] Four sets of winding components 7 are installed on the outer corners of the inner mounting platform 2, corresponding to the four diagonal connecting platforms 54 of the platform 52. Each set of winding components 7 includes a C-frame 71, which is slidably installed on the outer wall of the inner mounting platform 2. A drive motor 72 is fixedly installed at the bottom of the C-frame 71, and the output end of the drive motor 72 extends upward to the inner side of the C-frame 71 and is fixedly connected to a winding drum 73. A speed sensor 74 is connected to the top of the winding drum 73 for real-time detection of winding. The rotation speed and number of rotations of the drum 73 are used to accurately calculate the length of the traction rope 75. One end of the traction rope 75 is wound and fixed on the take-up drum 73, and the other end passes through the spherical guide 77 that is rotatably set inside the rectangular block 76 on the back side of the C-frame 71, and is finally fixedly connected to the rotating bead 55 at the corresponding corner of the platform 52. The spherical guide 77 is a spherical cavity guide structure, which allows the traction rope 75 to pass smoothly at any angle after passing through, avoiding excessive friction or jamming of the traction rope 75 when changing direction.

[0021] A connecting plate 9 is fixedly connected to one side of the C-frame 71. Cylinder 8 is fixedly installed on the outer wall of the inner mounting platform 2, and its output end is fixedly connected to the connecting plate 9. Cylinder 8 can push the entire C-frame 71 to slide horizontally along the side wall of the inner mounting platform 2. Guide holes 16 are opened on the side wall of the inner mounting platform 2 corresponding to the rectangular block 76. The rectangular block 76 is slidably set in the guide holes 16 to ensure the accurate sliding direction of the C-frame 71. When it is necessary to adjust the position of the condenser body 6, the four sets of drive motors 72 independently control the rotation of the corresponding winding drum 73 to realize the independent winding and unwinding of the four traction ropes 75. By precisely controlling the winding and unwinding length of each traction rope 75, The combination of cylinder 8 and C-frame 71 moves the entire structure to change the angle of action of the traction rope 75, which can apply horizontal force of different directions and magnitudes to the platform 52, driving the platform 52 to translate in any direction and rotate at any angle in the horizontal plane. During this process, the bullseye ball 53 on the bottom surface of the platform 52 rolls into contact with the top surface of the inner mounting platform 2, reducing the moving friction. The rotating ball 55 in the connecting platform 54 can rotate freely, ensuring that the connection point between the traction rope 75 and the platform 52 is always in the optimal force direction. The speed sensor 74 provides real-time feedback on the take-up and unwinding of each winding drum 73, forming a closed-loop control to ensure the accuracy of position adjustment.

[0022] On each side of the inner mounting platform 2, there is a set of clamping assemblies 11. Each set of clamping assemblies 11 includes a second cylinder 111, which is fixedly mounted on the outer side wall of the inner mounting platform 2. Its output end horizontally penetrates the side wall of the inner mounting platform 2 and is fixedly connected to a clamping plate 112 at its end. The clamping plate 112 is a vertically arranged plate structure. An elastic bladder 114 is fixedly connected to the side of the clamping plate 112 facing the condenser body 6. The elastic bladder 114 is made of flexible rubber or silicone material and has a hollow internal structure. A guide rod 113 is fixedly connected to the back side of the clamping plate 112, that is, the side facing away from the condenser body 6. The rod 113 extends horizontally and slides with the guide sleeve on the side wall of the inner mounting platform 2 to guide the translation of the clamping plate 112. The back side of the clamping plate 112 is also fixedly connected to a control coil 115. The control coil 115 is an electromagnetic coil and is connected to an external power source. When the control coil 115 is energized, it generates a magnetic field. The magnetic field lines pass through the interior of the elastic bladder 114. The inner side wall of the inner mounting platform 2 has a fitting groove corresponding to the clamping plate 112 and the control coil 115. When the cylinder 111 drives the clamping plate 112 to fully retract, the control coil 115 and part of the structure of the clamping plate 112 can be embedded in the fitting groove.

[0023] Two sets of feeding assemblies 10 are provided, each linked to a corresponding clamping assembly 11. Each feeding assembly 10 includes a fixing frame 101, which is fixedly installed on the side of the inner mounting platform 2. Multiple syringes 102 are fixedly connected to one side of the fixing frame 101. The syringes 102 are filled with magnetorheological fluid, and a piston 103 is slidably disposed inside the syringe 102. A connecting rod 104 is fixedly connected to one side of the piston 103. One end of the connecting rod 104 extends from the tail end of the syringe 102 and is fixedly connected to a connecting plate 105. The other side of the connecting plate 105 is connected to the clamping assembly 11. The guide rod 113 is fixedly connected, and the front end of the syringe 102 is connected to the connecting tube 106. The connecting tube 106 extends along the inside of the clamping plate 112 and finally passes through the clamping plate 112 and communicates with the inner cavity of the elastic bladder 114. When the cylinder 111 pushes the clamping plate 112 to move towards the condenser body 6, the clamping plate 112 drives the guide rod 113 to move synchronously. The guide rod 113 pulls the connecting rod 104 through the connecting plate 105. The connecting rod 104 drives the piston 103 to move forward in the syringe 102, pushing the magnetorheological fluid in the syringe 102 into the elastic bladder 114 through the connecting tube 106.

[0024] The elastic bladder 114 gradually expands under the filling of magnetorheological fluid and adheres to the surface of the condenser body 6. Due to the flexibility of the elastic bladder 114, it can adaptively cover the irregular contour of the condenser to achieve a non-destructive fit. When the elastic bladder 114 is in full contact with the condenser surface, the control coil 115 is energized to generate a magnetic field. Under the action of the magnetic field, the magnetorheological fluid instantly changes from a low-viscosity liquid to a high-viscosity near-solid state. The elastic bladder 114 then hardens and solidifies, thus firmly clamping the condenser body 6 in the current position. When it is necessary to release the clamp, the control coil 115 is de-energized, the magnetorheological fluid returns to a liquid state, the cylinder 111 reverses its action to drive the clamping plate 112 to move backward, the piston 103 resets and draws the magnetorheological fluid back from the elastic bladder 114 into the syringe 102, the elastic bladder 114 contracts, and the workpiece is released.

[0025] A partition 12 is fixedly connected to one side of the inner wall of the inner mounting platform 2. A sealing joint for connecting with the condenser pipeline is provided on the partition 12. A tee pipe 13 is connected to one side of the partition 12. One end of the tee pipe 13 is connected to the sealing joint, and the other end is connected to the air injection pump 15 through the connecting pipe 14. The air injection pump 15 is fixedly installed inside the frame 1. After the sealing cover 3 is closed, the industrial camera 17 is installed inside the sealing cover 3. It can be used to take pictures to confirm the placement of the condenser before closing, and can also be used to observe the internal situation during the inspection process.

[0026] Working principle: In use, the condenser body 6 to be tested is first placed on the anti-slip pad 56 of the support platform 5. Then, the three-way pipe 13 and the sealing joint are connected to the pipe end of the condenser. The hydraulic cylinder 4 drives the support platform 5 to rise and fall to the appropriate working height according to the height specifications of the condenser. Subsequently, the external control system controls the drive motor 72 in the four sets of winding assemblies 7 to drive the winding drum 73 to rotate according to the preset positioning parameters. Through the independent winding and unwinding combination of the four traction ropes 75, in conjunction with the cylinder 8, the C-shaped frame 71 is pushed along... The guide hole 16 slides horizontally to change the angle of action of the traction rope 75, applying horizontal components of different directions and magnitudes to the platform 52, driving the platform 52 to achieve translation in any direction and rotation at any angle in the horizontal plane. The speed sensor 74 provides real-time feedback on the take-up and unwinding amount of each winding drum 73 to form a closed-loop control. After positioning, the cylinders 111 of the two sets of clamping assemblies 11 are activated simultaneously, pushing the clamping plate 112 to move towards the condenser body 6. When the clamping plate 112 moves, it pulls the connecting rod through the guide rod 113 and the connecting plate 105. 104. The piston 103 drives the magnetorheological fluid in the syringe 102 to be pushed into the elastic bladder 114 through the connecting tube 106. The elastic bladder 114 expands and adaptively fits and wraps around the irregular outer contour surface of the condenser body 6. Then, the control coil 115 is energized to generate a magnetic field. Under the action of the magnetic field, the magnetorheological fluid instantly hardens and solidifies, firmly clamping and fixing the condenser body 6 in the current position. After clamping and fixing, the sealing cap 3 is flipped to seal the inside of the frame 1. The gas injection pump 15 is started, and gas flows through the connecting tube 14, the three-way tube 13 and the sealing tube. The syringe is filled into the internal pipeline of the condenser body 6. After reaching the set pressure, the pressure is maintained and the pressure change is monitored to determine whether the airtightness of the condenser is qualified. After the test is completed, the control coil 115 is de-energized, the magnetorheological fluid returns to the liquid state, the cylinder 111 moves in the reverse direction to drive the clamping plate 112 to move backward, the piston 103 resets and pulls the magnetorheological fluid from the elastic bladder 114 back into the syringe 102. The elastic bladder 114 contracts and releases the clamp. The operator can take out the condenser body 6 and enter the next test cycle. Other tests that require positioning can also be performed.

Claims

1. A condenser testing platform with a rapid positioning structure, comprising a frame (1), characterized in that: An inner mounting platform (2) is connected to the top of the frame (1). A sealing cover (3) is hinged to one side of the frame (1). A hydraulic cylinder (4) is connected to the bottom of the inner mounting platform (2). The output end of the hydraulic cylinder (4) passes through the inner mounting platform (2) and is connected to a support platform (5). A condenser body (6) is provided at the top of the support platform (5). Two sets of winding assemblies (7) are connected to both sides of the inner mounting platform (2). A cylinder (8) is connected to both sides of the inner mounting platform (2). (2) Clamping components (11) are connected to both sides. A feeding component (10) is connected to one side of the clamping component (11). A partition (12) is connected to one side of the inner wall of the inner mounting platform (2). A three-way pipe (13) is connected to one side of the partition (12). A connecting pipe (14) is connected to the other end of the three-way pipe (13). The other end of the connecting pipe (14) extends into the frame (1) and is connected to an air injection pump (15). An industrial camera (17) is connected to one side of the sealing cover (3).

2. The condenser testing platform with a rapid positioning structure according to claim 1, characterized in that: The winding assembly (7) includes a C-frame (71), a drive motor (72) is connected to the bottom end of the C-frame (71), the output end of the drive motor (72) extends to the inside of the C-frame (71) and is connected to a winding drum (73), a speed sensor (74) is connected to the top end of the winding drum (73), a traction rope (75) is wound around the surface of the winding drum (73), a rectangular block (76) is connected to the back side of the C-frame (71), and a spherical guide (77) is rotatably arranged inside the rectangular block (76).

3. A condenser testing platform with a rapid positioning structure according to claim 2, characterized in that: The C-frame (71) is connected to (9) on one side, the cylinder (8) is connected to (9) at its output end, and the traction rope (75) passes through the spherical guide (77) and is connected to the support platform (5) at one end.

4. A condenser testing platform with a rapid positioning structure according to claim 3, characterized in that: The support platform (5) includes a rotating platform (51), a platform plate (52) is connected to the top of the rotating platform (51), and multiple sets of bullseye ball bearings (53) are connected to the bottom of the platform plate (52). The platform plate (52) is octagonal, and a connecting platform (54) is provided at each diagonal. A rotating ball bearing (55) is rotatably arranged in each connecting platform (54). The rotating ball bearing (55) is connected to the traction rope (75). An anti-slip pad (56) is connected to the top of the platform plate (52).

5. A condenser testing platform with a rapid positioning structure according to claim 2, characterized in that: The inner mounting platform (2) has guide holes (16) on both sides, and the rectangular block (76) is slidably disposed inside the guide holes (16).

6. A condenser testing platform with a rapid positioning structure according to claim 1, characterized in that: The clamping assembly (11) includes a second cylinder (111) fixedly disposed on the outside of the inner mounting platform (2). The output end of the second cylinder (111) passes through the inner mounting platform (2) and is connected to a clamping plate (112). A guide rod (113) is connected to the back side of the clamping plate (112). An elastic bladder (114) is connected to the other side of the clamping plate (112). A control coil (115) is connected to the back side of the clamping plate (112).

7. A condenser testing platform with a rapid positioning structure according to claim 6, characterized in that: The inner mounting platform (2) has a fitting groove on the inner side corresponding to the clamping plate (112) and the control coil (115), and one side of the clamping plate (112) is connected to the feeding assembly (10).

8. A condenser testing platform with a rapid positioning structure according to claim 7, characterized in that: The feeding assembly (10) includes a fixed frame (101) fixedly mounted on the surface of the inner mounting platform (2). Multiple sets of syringes (102) are connected to one side of the fixed frame (101). A connecting rod (104) is connected to one side of the syringe (102). One end of the connecting rod (104) extends into the syringe (102) and is connected to a piston (103). A connecting plate (105) is connected to the other end of the connecting rod (104). The other side of the connecting plate (105) is connected to a guide rod (113). A connecting tube (106) is connected to one end of the syringe (102).

9. A condenser testing platform with a rapid positioning structure according to claim 8, characterized in that: The connecting tube (106) passes through the clamping plate (112) and communicates with the elastic bladder (114). The syringe (102) is filled with magnetorheological fluid.

Images