Spring hinge assembling device for refrigerator and assembling method of spring hinge assembling device

Abstract

The invention discloses a refrigerator spring hinge assembling device and an assembling method thereof, and relates to the technical field of assembling devices.The refrigerator spring hinge assembling device comprises a workbench, vibration feeders, a feeding mechanism, a bearing mechanism and a fixing table, the top end of the workbench is fixedly connected with the fixing table, the vibration feeders are arranged outside the workbench at equal intervals, the feeding mechanism is arranged on the workbench, and the bearing mechanism is arranged on the workbench; the bearing mechanism is arranged outside the fixing table and used for bearing the hinge parts. The arrangement mode that the vibration feeders, the feeding mechanism and the bearing mechanism are matched is utilized, a supporting rod, a spring, a spring guide sleeve and a spring seat component are conveyed through the multiple vibration feeders correspondingly, then the supporting rod, the spring, the spring guide sleeve, the spring seat and a hinge support are conveyed to the bearing mechanism step by step through the feeding mechanism, and automatic assembling is conducted; automatic assembly line work is achieved, the assembling efficiency and the productivity consistency are greatly improved, the long-term production cost is reduced, and use is convenient.

Description

Technical Field

[0001] This invention relates to the field of assembly equipment technology, and in particular to a spring hinge assembly device for a refrigerator and its assembly method. Background Technology

[0002] A spring hinge for a freezer is a type of hardware used to connect the door to the cabinet body. Its built-in torsion spring structure provides automatic return force, enabling the door to close automatically and be positioned with a buffer. It can also automatically adjust the force according to the opening angle, ensuring airtightness while improving ease of use and durability.

[0003] As a key hardware component, the freezer spring hinge is typically assembled from multiple parts, including a support rod, spring, spring guide sleeve, spring seat, and hinge bracket. Currently, the industry generally uses traditional manual assembly methods. Operators need to manually align small parts, which not only consumes a lot of time but also makes it difficult to ensure the consistency of key parameters such as spring preload and support rod installation angle. Manual operation is prone to assembly errors due to fatigue, affecting the smoothness of hinge closure and service life. Furthermore, it cannot meet the high requirements of efficiency and standardization for large-scale production. The overall assembly process is cumbersome, inefficient, and inconvenient. Summary of the Invention

[0004] The purpose of this invention is to provide a spring hinge assembly device and assembly method for refrigerators, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a spring hinge assembly device for a freezer, comprising:

[0006] A workbench, the top of which is fixedly connected to a fixed platform;

[0007] A vibrating feeder is equidistantly arranged outside the worktable for conveying hinge components;

[0008] A feeding mechanism, which is set on the workbench, is used to transport and assemble hinge components;

[0009] A support mechanism is provided outside the fixed platform and is used to support hinge components.

[0010] Preferably, the feeding mechanism includes:

[0011] A first fixed frame is fixedly connected to the workbench and the fixed platform;

[0012] The first guide rail is fixedly installed on the outer wall of the first fixed frame;

[0013] A sliding frame, which is slidably disposed outside the first guide rail;

[0014] The first cylinder is fixedly mounted on the first fixed frame, and the output end of the first cylinder is connected to the sliding frame in a transmission manner.

[0015] The second cylinder is fixedly installed on the outer wall of the sliding frame;

[0016] Mounting plate, the output end of the second cylinder is connected to the mounting plate in a transmission manner;

[0017] A limiting rod is fixedly connected at equal intervals to the top of the mounting plate, and the limiting rod is slidably inserted into the sliding frame;

[0018] A pneumatic clamp, which is fixedly installed at the bottom end of the mounting plate, is used to clamp hinge components;

[0019] A placement rack is fixedly installed on the top of the workbench and is used to support the hinge components conveyed by the vibrating feeder.

[0020] The third cylinder is fixedly connected to the outside of one of the mounting brackets and is used to push the hinge components;

[0021] A conveyor, which is fixedly installed on the top of the workbench, is used to transport hinge brackets.

[0022] Preferably, the feeding mechanism further includes:

[0023] The second fixing frame is fixedly connected to the top of the fixing platform;

[0024] The fourth cylinder is fixedly mounted on the second fixed frame;

[0025] The second guide rail is fixedly installed on the second fixed frame;

[0026] The refueling plate is slidably disposed outside the second guide rail, and the output end of the fourth cylinder is connected to the refueling plate in a transmission manner.

[0027] A limiting component, which is disposed on a fixed platform, is used to adjust the position of the hinge components;

[0028] The discharge assembly is set on the workbench and is used to output the assembled hinge.

[0029] Preferably, the limiting component includes:

[0030] The fifth cylinder and the sixth cylinder are fixedly mounted on the top of the fixed platform;

[0031] The extrusion head, the output end of the fifth cylinder is connected to the extrusion head via a transmission;

[0032] The extrusion tube is connected to the output end of the sixth cylinder via a drive connection.

[0033] Preferably, the discharge assembly includes:

[0034] A discharge rack, which is fixedly connected to the top of the workbench;

[0035] The seventh cylinder is fixedly installed on the top of the discharge rack;

[0036] The output end of the seventh cylinder is connected to the pressing plate for flattening the hinge.

[0037] The eighth cylinder is fixedly installed inside the discharge rack;

[0038] The push plate, the output end of the eighth cylinder is connected to the push plate in a transmission manner;

[0039] The discharge hopper is fixedly connected to the top of the workbench.

[0040] Preferably, the load-bearing mechanism includes:

[0041] A rotating platform, which is rotatably mounted on the outside of a fixed platform;

[0042] The support plate has rotating grooves equidistantly opened on the outer wall of the rotating table, and the support plate is rotatably disposed inside the rotating grooves via a rotating shaft;

[0043] The gear has through slots equidistantly provided on the rotating platform, and the gear is rotatably disposed inside the through slots. The gear is fixedly inserted and connected to the rotating shaft.

[0044] A snap-fit ​​assembly, wherein the snap-fit ​​assembly is disposed inside the support plate;

[0045] A support mold, wherein the support mold is mounted on the top and bottom ends of a support plate via a snap-fit ​​assembly;

[0046] An adjustment component is located at the bottom of the rotating table and is used to adjust the state of the mold.

[0047] A drive assembly is mounted on the worktable and is used to control the rotation of the rotary table.

[0048] Preferably, the snap-fit ​​assembly includes:

[0049] A fixing block is fixedly connected to the top and bottom of the bearing plate, and the bearing mold has a fixing groove that mates with the fixing block.

[0050] The snap-fit ​​block has a snap-fit ​​groove on its fixing block, and the snap-fit ​​block is slidably inserted into the inner cavity of the snap-fit ​​groove. The upper part of the inner wall of the fixing groove has a snap-fit ​​hole that mates with the snap-fit ​​block, and the outer wall of the snap-fit ​​block has an inclined surface.

[0051] A first compression spring, the end of which is fixedly connected to the snap-fit ​​block;

[0052] The first extrusion rod is provided with a first inclined groove on the snap-fit ​​block, and the first extrusion rod is slidably inserted into the inner cavity of the first inclined groove.

[0053] The extrusion frame has the end of the first extrusion rod fixedly connected to the extrusion frame. The top and bottom of the bearing plate are provided with adjustment grooves, and the extrusion frame is slidably inserted into the inner cavity of the adjustment groove.

[0054] The first extrusion plate is fixedly connected to one side of the extrusion frame;

[0055] The unlocking rod has an unlocking groove inside the bearing plate, and the unlocking rod is slidably inserted into the inner cavity of the unlocking groove and the unlocking rod is slidably inserted into the inner cavity of the first pressing plate.

[0056] The sliding rod has elastic grooves at both the top and bottom of the unlocking groove, and the end of the sliding rod is fixedly connected to the inner wall of the elastic groove.

[0057] A slider is slidably connected to a sliding rod, and the slider is fixedly connected to the top and bottom of the unlocking rod.

[0058] A second compression spring is sleeved on the outside of the slide rod;

[0059] The compression ring has an annular groove inside the rotating platform, and the compression ring is located inside the annular groove. The outer wall of the compression ring has compression grooves at equal intervals. The end of the unlocking rod passes through the inner cavity of the rotating shaft and cooperates with the compression grooves.

[0060] Preferably, the adjustment component includes:

[0061] A rotating ring, which is rotatably sleeved on the outside of the rotating platform;

[0062] A toothed ring, which is fitted at the top of a rotating ring and meshes with a gear;

[0063] The extrusion block has a positioning groove inside the toothed ring, and the extrusion block is slidably inserted into the inner cavity of the positioning groove.

[0064] A pull rod, one end of which is fixedly connected to the extrusion block;

[0065] The first positioning rod is fixedly connected to the top of the pull rod. The bottom of the rotating table is provided with an arc-shaped groove. The inner wall of the arc-shaped groove is symmetrically provided with first positioning holes. The end of the first positioning rod is slidably inserted into the inner cavity of the first positioning hole.

[0066] A third compression spring is sleeved on the outside of the pull rod;

[0067] The second extrusion plate is located inside the positioning groove;

[0068] The second extrusion rod has a second inclined groove inside the second extrusion plate, and the second extrusion rod is slidably inserted into the inner cavity of the second inclined groove.

[0069] The second positioning rod is fixedly inserted and connected to the second extrusion rod. The second positioning rod is slidably inserted and connected to the inner cavity of the second extrusion plate. The bottom end of the extrusion ring is provided with a second positioning hole that cooperates with the second positioning rod. The bottom end of the rotating table is provided with a fan-shaped groove. The second positioning rod is slidably inserted and connected to the inner cavity of the fan-shaped groove.

[0070] A counterweight block is fixedly connected to the bottom end of the second positioning rod.

[0071] Preferably, the driving component includes:

[0072] The motor is fixedly mounted on the top of the workbench;

[0073] A reversing gear ring, which is fixedly sleeved on the outside of the rotating table;

[0074] The motor output is connected to the reversing gear, and the reversing gear ring meshes with the reversing gear.

[0075] The present invention also provides an assembly method for a spring hinge assembly device for a refrigerator, comprising the following specific steps:

[0076] Step 1: Place the hinge components, namely the strut, spring, spring guide sleeve, and spring seat, into the corresponding vibratory feeder. The vibratory feeder arranges the components in an orderly manner and transports them to the corresponding placement rack. At the same time, the hinge bracket is transported to the designated position by the conveyor. For the strut component placed in a specific slot, the third cylinder performs a pushing action to precisely push it to the predetermined position deep in the placement rack.

[0077] Step 2: The first cylinder drives the sliding frame to move horizontally along the first guide rail, so that the pneumatic clamp moves above the target part. The second cylinder drives the mounting plate to descend, and the pneumatic clamp clamps the part under the control of the air source. Then the second cylinder lifts the mounting plate, and the first cylinder acts again to move the sliding frame above the current position of the bearing mechanism.

[0078] Step 3: The second cylinder descends again, the pneumatic clamp places the part on the bearing mold, the drive assembly drives the rotating table to rotate at a fixed angle, and moves the bearing plate to the next station. Repeat steps 2 and 3 to assemble the strut, spring, spring guide sleeve, spring seat and hinge bracket in sequence.

[0079] Step 4: When rotating to the oiling plate position, the fourth cylinder drives the oiling plate to move along the second guide rail to automatically apply oil to the contact point between the support rod and the hinge bracket.

[0080] Step 5: When assembling the spring and spring seat, the fifth and sixth cylinders of the limiting assembly can push the extrusion head and extrusion tube respectively to fine-tune or press the placed parts to ensure that they are in the correct assembly position.

[0081] Step Six: After all parts are assembled, the rotating table moves the finished hinge to the unloading station. The pneumatic clamp picks up the folded finished hinge and places it on the unloading rack. The seventh cylinder drives the pressing plate to press down and flatten the folded hinge into a horizontal position. The eighth cylinder drives the push plate to move horizontally and push the flattened hinge into the unloading hopper, completing the automatic unloading.

[0082] The technical effects and advantages of this invention are as follows:

[0083] (1) The present invention utilizes a combination of vibratory feeder, feeding mechanism and bearing mechanism to transport support rod, spring, spring guide sleeve and spring seat components through multiple vibratory feeders. Then the feeding mechanism gradually clamps the conveyed support rod, spring, spring guide sleeve, spring seat and hinge bracket onto the bearing mechanism and performs automatic assembly. This realizes automated assembly line operation, greatly improves assembly efficiency and production capacity consistency, effectively avoids fatigue error and quality fluctuation caused by manual operation, reduces reliance on manpower, reduces long-term production costs and is easy to use.

[0084] (2) The present invention utilizes a combination of a rotating table, a bearing plate, gears, a snap-fit ​​assembly, a bearing mold, and an adjustment assembly to fix the mold for the current production specification and the mold for the next production specification on the bearing plate. When switching production specifications, the gears can be rotated 180 degrees by the adjustment assembly. When two molds are in use and another mold is needed, all molds on the bearing plate can be removed at the same time by the adjustment assembly, which improves the flexibility and efficiency of the production line. The molds can be fixed by pressing and snapping without the need for additional tools or long downtime. The molds can be quickly switched without the need for long downtime, which shortens the specification conversion time and reduces the idle waiting time of the equipment. At the same time, the modular snap-fit ​​structure supports batch disassembly and assembly, which greatly simplifies the mold maintenance and cleaning process and reduces the complexity of operation and labor costs. Attached Figure Description

[0085] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0086] Figure 2 This is one of the structural schematic diagrams of the feeding mechanism of the present invention.

[0087] Figure 3 This is the second schematic diagram of the feeding mechanism of the present invention.

[0088] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle.

[0089] Figure 5 This is a schematic diagram of the structure of the third cylinder of the present invention.

[0090] Figure 6 This is a schematic diagram of the material discharge rack structure of the present invention.

[0091] Figure 7 This is a schematic diagram of the structure of the refueling plate of the present invention.

[0092] Figure 8 This is a schematic diagram of the structure at the fixed platform of the present invention.

[0093] Figure 9 This is a top view of the internal structure of the rotating platform of the present invention.

[0094] Figure 10 This is a schematic diagram of the internal structure of the bearing mechanism of the present invention from the front.

[0095] Figure 11 This is a schematic diagram of the internal structure of the front of the mold bearing part of the present invention.

[0096] Figure 12 For the present invention Figure 11 Enlarged structural diagram at point B.

[0097] Figure 13 This is a schematic diagram of the internal structure of the side of the rotating platform of the present invention.

[0098] Figure 14 For the present invention Figure 13 Enlarged structural diagram at point C.

[0099] Figure 15 This is a top view of the internal structure of the extrusion ring of the present invention.

[0100] In the diagram: 1. Workbench; 2. Vibrating feeder; 3. Feeding mechanism; 31. First fixed frame; 32. First guide rail; 33. Sliding frame; 34. First cylinder; 35. Second cylinder; 36. Mounting plate; 37. Limiting rod; 38. Pneumatic clamp; 39. Placement rack; 310. Third cylinder; 311. Conveyor; 312. Second fixed frame; 313. Fourth cylinder; 314. Second guide rail; 315. Oiling plate; 316. Fifth cylinder; 317. Sixth cylinder; 318. Extrusion head; 319. Extrusion tube; 320. Discharge rack; 321. Seventh cylinder; 322. Pressing plate; 323. Eighth cylinder; 324. Pushing plate; 25. Discharge hopper; 4. Bearing mechanism; 41. Rotating table; 42. Bearing plate; 43. Gear; 44. Fixing block; 45. Snap-fit ​​block; 46. First compression spring; 47. First extrusion rod; 48. Extrusion frame; 49. First extrusion plate; 410. Unlocking rod; 411. Slide rod; 412. Slider; 413. Second compression spring; 414. Extrusion ring; 415. Rotating ring; 416. Gear ring; 417. First electric telescopic rod; 418. First positioning block; 419. Second electric telescopic rod; 420. Second positioning block; 421. Motor; 422. Reversing gear ring; 423. Reversing gear; 424. Bearing mold; 5. Fixing table. Detailed Implementation

[0101] 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.

[0102] This invention provides, for example Figure 1-15 The spring hinge assembly device for a refrigerator shown includes a workbench 1, a vibrating feeder 2, a feeding mechanism 3, and a bearing mechanism 4. A fixed platform 5 is fixedly connected to the top of the workbench 1. The vibrating feeder 2 is equidistantly arranged outside the workbench 1 for conveying hinge components. The feeding mechanism 3 is arranged on the workbench 1 for conveying and assembling hinge components. The bearing mechanism 4 is arranged outside the fixed platform 5 for bearing the hinge components.

[0103] Specifically, the feeding mechanism 3 includes a first fixed frame 31, a first guide rail 32, a sliding frame 33, a first cylinder 34, a second cylinder 35, a mounting plate 36, a limit rod 37, a pneumatic clamp 38, a placement frame 39, a third cylinder 310, and a conveyor 311. The first fixed frame 31 is fixedly connected to the workbench 1 and the fixed platform 5. The first guide rail 32 is fixedly installed on the outer wall of the first fixed frame 31. The sliding frame 33 is slidably disposed outside the first guide rail 32. The first cylinder 34 is fixedly installed on the first fixed frame 31, and the output end of the first cylinder 34 is connected to the sliding frame 33. The second cylinder 35 is fixedly installed on the outer wall of the sliding frame 33. The output end is connected to the mounting plate 36 via a transmission. Limiting rods 37 are fixedly connected at equal intervals to the top of the mounting plate 36. Limiting rods 37 are slidably inserted into the sliding frame 33, limiting the movement of the mounting plate 36. This ensures that the second cylinder 35 can only drive the mounting plate 36 to move vertically back and forth. A pneumatic clamp 38 is fixedly installed at the bottom of the mounting plate 36 for clamping hinge components. Controlled by an external air source, the pneumatic clamp 38 achieves rapid, stable, and non-destructive gripping of components. Due to its pneumatic drive characteristics, it has advantages such as fast response speed and adjustable and constant clamping force, accurately adapting to hinge parts of different sizes and effectively avoiding... Eliminating the risk of scratches or deformation caused by manual operation significantly improves the automation and reliability of the assembly process. The first cylinder 34 and the second cylinder 35 drive the sliding frame 33 to slide horizontally on the first guide rail 32, and the mounting plate 36 to move vertically. This allows the pneumatic clamp 38 to pick up the hinge components from the placement frame 39 and place them on the carrying mechanism 4 for step-by-step assembly. The placement frame 39 is fixedly installed on the top of the workbench 1 to hold the hinge components fed by the vibrating feeder 2. The placement frame 39 has different slots for placing components that match those inside the vibrating feeder 2, facilitating the pneumatic clamp 38's handling of the materials. The clamping operation is performed. The third cylinder 310 is fixedly connected to the outside of one of the placement racks 39 and is used to push the hinge components. The third cylinder 310 is mainly used to push the support rod components in the hinge. The support rod components are transported to the placement rack 39 by the vibrating feeder 2. The third cylinder 310 can then push the support rod to the depth of the placement rack 39, which facilitates the subsequent clamping operation of the support rod by the pneumatic clamp 38. The conveyor 311 is fixedly installed on the top of the workbench 1 and is used to transport the hinge bracket. The conveyor 311, like the vibrating feeder 2, is mainly used to transport the outer shell of the hinge, which facilitates the pneumatic clamp 38 to clamp the hinge bracket for final assembly.

[0104] Furthermore, the feeding mechanism 3 also includes a second fixed frame 312, a fourth cylinder 313, a second guide rail 314, an oiling plate 315, a limiting component, a discharging component, and a driving component. The second fixed frame 312 is fixedly connected to the top of the fixed platform 5. The fourth cylinder 313 is fixedly installed on the second fixed frame 312. The second guide rail 314 is fixedly installed on the second fixed frame 312. The oiling plate 315 is slidably disposed outside the second guide rail 314. The output end of the fourth cylinder 313 is connected to the oiling plate 315 through a transmission connection. The fourth cylinder 313 can drive the oiling plate 315 to slide horizontally along the second guide rail 314, so that the oiling hole opened on the oiling plate 315 can be used to apply oil to the position where the support rod contacts the hinge bracket. The limiting component is disposed on the fixed platform 5 and is used to adjust the position of the hinge components. The discharging component is disposed on the worktable 1 and is used to output the assembled hinge. The driving component is disposed on the worktable 1 and is used to control the rotation of the rotating table 41.

[0105] Furthermore, the limiting assembly includes a fifth cylinder 316, a sixth cylinder 317, an extrusion head 318, and an extrusion tube 319. The fifth cylinder 316 and the sixth cylinder 317 are fixedly installed on the top of the fixed platform 5. The output end of the fifth cylinder 316 is connected to the extrusion head 318, and the output end of the sixth cylinder 317 is connected to the extrusion tube 319. When assembling the spring and the spring seat, the fifth cylinder 316 and the sixth cylinder 317 can push the extrusion head 318 and the extrusion tube 319 respectively to fine-tune or press the placed parts to ensure that they are in the correct assembly position.

[0106] Furthermore, the discharge assembly includes a discharge rack 320, a seventh cylinder 321, a pressing plate 322, an eighth cylinder 323, a pusher plate 324, and a discharge hopper 325. The discharge rack 320 is fixedly connected to the top of the workbench 1. The seventh cylinder 321 is fixedly installed on the top of the discharge rack 320. The output end of the seventh cylinder 321 is connected to the pressing plate 322 for driving and leveling the hinge. The eighth cylinder 323 is fixedly installed inside the discharge rack 320. The output end of the eighth cylinder 323 is connected to the pusher plate 324. 24. The transmission connection is established. The discharge hopper 325 is fixedly connected to the top of the workbench 1. After the hinge bracket is assembled, it is in a folded state. After being clamped onto the discharge rack 320 by the pneumatic clamp 38, the folded hinge bracket can be squeezed into a horizontal reset state by the pressing plate 322 driven by the seventh cylinder 321. Then, the push plate 324 is moved horizontally by the eighth cylinder 323 to push the horizontally reset hinge into the discharge hopper 325, and the material is discharged through the inclined surface of the discharge hopper 325.

[0107] Specifically, the bearing mechanism 4 includes a rotating platform 41, a bearing plate 42, a gear 43, a snap-fit ​​assembly, a bearing mold 424, and an adjustment assembly. The rotating platform 41 is rotatably mounted on the outside of the fixed platform 5. Rotating grooves are equidistantly provided on the outer wall of the rotating platform 41. The bearing plate 42 is rotatably mounted inside the rotating grooves via a rotating shaft. Through grooves are equidistantly provided on the rotating platform 41. The gear 43 is rotatably mounted inside the through grooves. The gear 43 is fixedly inserted and connected to the rotating shaft. The snap-fit ​​assembly is located inside the bearing plate 42. The bearing mold 424 is mounted on the top and bottom ends of the bearing plate 42 via the snap-fit ​​assembly. The adjustment assembly is located at the bottom end of the rotating platform 41 and is used to adjust the state of the mold.

[0108] Furthermore, the snap-fit ​​assembly includes a fixing block 44, a snap-fit ​​block 45, a first compression spring 46, a first extrusion rod 47, an extrusion frame 48, a first extrusion plate 49, an unlocking rod 410, a sliding rod 411, a slider 412, a second compression spring 413, and an extrusion ring 414. The fixing block 44 is fixedly connected to the top and bottom ends of the bearing plate 42. The bearing mold 424 has a fixing groove that mates with the fixing block 44. The fixing block 44 has a snap-fit ​​groove. The snap-fit ​​block 45 is slidably inserted into the inner cavity of the snap-fit ​​groove. The upper wall of the fixing groove has a snap-fit ​​hole that mates with the snap-fit ​​block 45. The outer wall of the snap-fit ​​block 45 has a slope. The end of the first compression spring 46 is fixedly connected to the snap-fit ​​block 45. The first compression spring 46 is always in a compressed state, thereby providing a stable elastic force to the snap-fit ​​block 45, thus enabling the snap-fit ​​block to snap into place. The connecting block 45 can extend out of the snap-fit ​​groove and stably engage with the snap-fit ​​hole opened in the bearing mold 424. The inclined surface of the connecting block 45 allows the bearing mold 424 to be snapped in place simply by pressing during installation, without the need for additional tools, making operation simple and convenient. The connecting block 45 has a first inclined groove, and the first extrusion rod 47 is slidably inserted into the inner cavity of the first inclined groove. The end of the first extrusion rod 47 is fixedly connected to the extrusion frame 48. The top and bottom ends of the bearing plate 42 both have adjustment grooves, and the extrusion frame 48 is slidably inserted into the inner cavity of the adjustment groove. The first extrusion plate 49 is fixedly connected to the opposite side of the extrusion frame 48. The bearing plate 42 has an unlocking groove inside, and the unlocking rod 410 is slidably inserted into the inner cavity of the unlocking groove. The unlocking rod 410 is also slidably inserted into the inner cavity of the first extrusion plate 49. The shape of the unlocking rod 410 is as follows: Figure 11As shown, it consists of a thick rod and a thin rod, which are joined together by a truncated cone. The top and bottom of the unlocking groove are provided with elastic grooves. The end of the sliding rod 411 is fixedly connected to the inner wall of the elastic groove. The slider 412 is slidably inserted into the sliding rod 411 and is fixedly connected to the top and bottom of the unlocking rod 410. A second compression spring 413 is sleeved on the outside of the sliding rod 411. One end of the second compression spring 413 is fixedly connected to the slider 412, and the other end is fixedly connected to the inner wall of the elastic groove. The second compression spring 413 always provides a stable elastic force to the unlocking rod 410 through the slider 412, thereby enabling the unlocking rod 410 to unlock. The thinner part of the locking rod 410 is stuck inside the first extrusion plate 49. The inside of the rotating table 41 is provided with an annular groove. The extrusion ring 414 is located inside the annular groove. The outer wall of the extrusion ring 414 is provided with extrusion grooves at equal intervals. The end of the unlocking rod 410 passes through the inner cavity of the rotating shaft and cooperates with the extrusion groove. When it is necessary to disassemble the bearing mold 424, the extrusion ring 414 can be rotated, so that multiple unlocking rods 410 can be extruded at the same time using the extrusion groove. This allows the thicker part of the unlocking rod 410 to be inserted into the inside of the first extrusion plate 49, thereby pulling the extrusion frame 48 to move. Then, the first extrusion rod 47 can drive the locking block 45 to retract into the inside of the fixing block 44, thereby realizing the disassembly operation of the bearing mold 424.

[0109] Furthermore, the adjustment assembly includes a rotating ring 415, a gear ring 416, a first electric telescopic rod 417, a first positioning block 418, a second electric telescopic rod 419, and a second positioning block 420. The rotating ring 415 is rotatably sleeved on the outside of the rotating platform 41. The gear ring 416 is embedded in the top of the rotating ring 415 and meshes with a gear 43. The first electric telescopic rod 417 is fixedly installed at the bottom end of the rotating ring 415. The output end of the first electric telescopic rod 417 is connected to the first positioning block 418. The bottom end of the compression ring 414 has a first positioning hole that mates with the first positioning block 418. The second electric telescopic rod 419... The telescopic rod 419 is fixedly installed at the bottom end of the rotating ring 415; the output end of the second electric telescopic rod 419 is connected to the second positioning block 420 through a transmission. The bottom end of the extrusion ring 414 is provided with a second positioning hole that cooperates with the second positioning block 420. The first electric telescopic rod 417 and the second electric telescopic rod 419 are both electrically connected to an external power supply through an external switch. The first positioning block 418 and the second positioning block 420 can be switched and engaged by the first electric telescopic rod 417 and the second electric telescopic rod 419. Thus, the disassembly operation of the bearing mold 424 can be realized by rotating the rotating ring 415 to drive the unlocking rod 410 to move.

[0110] Furthermore, the drive assembly includes a motor 421, a reversing gear ring 422, and a reversing gear 423. The motor 421 is fixedly mounted on the top of the workbench 1, and the reversing gear ring 422 is fixedly sleeved on the outside of the rotating table 41. The output end of the motor 421 is connected to the reversing gear 423 for transmission. The reversing gear ring 422 is meshed with the reversing gear 423. The motor 421 is electrically connected to an external power supply through a controller on the workbench 1. The motor 421 drives the reversing gear ring 422 to rotate through the reversing gear 423, thereby enabling the rotating table 41 to rotate at a fixed angle, realizing the picking and assembly of each component of the hinge.

[0111] Assembly method of the present invention:

[0112] Step 1: Place the hinge components, namely the strut, spring, spring guide sleeve, and spring seat, into the corresponding vibratory feeder 2. The vibratory feeder 2 arranges the components in an orderly manner and conveys them to the corresponding placement rack 39. At the same time, the hinge bracket is conveyed to the designated position by the conveyor 311. For the strut component placed in a specific slot, the third cylinder 310 performs a pushing action to precisely push it to the predetermined position deep in the placement rack 39.

[0113] Step 2: The first cylinder 34 drives the sliding frame 33 to move horizontally along the first guide rail 32, so that the pneumatic clamp 38 moves above the target part. The second cylinder 35 drives the mounting plate 36 to descend. The pneumatic clamp 38 clamps the part under the control of the air source. Then the second cylinder 35 lifts the mounting plate 36, and the first cylinder 34 acts again to move the sliding frame 33 above the current position of the bearing mechanism 4.

[0114] Step 3: The second cylinder 35 descends again, the pneumatic clamp 38 places the part on the bearing mold 424, the drive assembly drives the rotating table 41 to rotate at a fixed angle, and moves the bearing plate 42 to the next station. Repeat steps 2 and 3 to assemble the strut, spring, spring guide sleeve, spring seat and hinge bracket in sequence.

[0115] Step 4: When rotated to the position of the oiling plate 315, the fourth cylinder 313 drives the oiling plate 315 to move along the second guide rail 314 to automatically apply oil to the contact point between the support rod and the hinge bracket.

[0116] Step 5: When assembling the spring and spring seat, the fifth cylinder 316 and the sixth cylinder 317 of the limiting assembly can push the extrusion head 318 and the extrusion tube 319 respectively to fine-tune or press the placed parts to ensure that they are in the correct assembly position.

[0117] Step Six: After all parts are assembled, the rotating table 41 rotates the finished hinge to the unloading station. The pneumatic clamp 38 clamps the folded finished hinge onto the unloading rack 320. The seventh cylinder 321 drives the pressing plate 322 to press down, flattening the folded hinge into a horizontal position. The eighth cylinder 323 drives the pusher plate 324 to move horizontally, pushing the flattened hinge into the unloading hopper 325, completing the automatic unloading.

[0118] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A spring hinge assembly device for a freezer, characterized in that, include: Workbench (1), with a fixed platform (5) fixedly connected to the top of the workbench (1). Vibrating feeder (2), which is equidistantly arranged outside the workbench (1) for conveying hinge components; Feeding mechanism (3), which is set on workbench (1) and is used to transport and assemble hinge parts; The bearing mechanism (4) is located outside the fixed platform (5) and is used to support the hinge components.

2. The spring hinge assembly device for a freezer according to claim 1, characterized in that, The feeding mechanism (3) includes: The first fixed frame (31) is fixedly connected to the workbench (1) and the fixed table (5); The first guide rail (32) is fixedly installed on the outer wall of the first fixing frame (31); A sliding frame (33) is slidably disposed outside the first guide rail (32); The first cylinder (34) is fixedly mounted on the first fixed frame (31), and the output end of the first cylinder (34) is connected to the sliding frame (33) in a transmission manner. The second cylinder (35) is fixedly installed on the outer wall of the sliding frame (33); Mounting plate (36), the output end of the second cylinder (35) is connected to the mounting plate (36) in a transmission manner; Limiting rod (37), the limiting rod (37) is fixedly connected at equal intervals to the top of the mounting plate (36), and the limiting rod (37) is slidably inserted into the sliding frame (33); Pneumatic clamp (38), which is fixedly installed at the bottom end of the mounting plate (36) and is used to clamp hinge components; Placement rack (39), which is fixedly installed on the top of the workbench (1) and is used to carry the hinge parts conveyed by the vibrating feeder (2); The third cylinder (310) is fixedly connected to the outside of one of the mounting brackets (39) and is used to push the hinge components; Conveyor (311), which is fixedly installed on the top of the workbench (1) for conveying hinge brackets.

3. The spring hinge assembly device for a freezer according to claim 2, characterized in that, The feeding mechanism (3) further includes: The second fixing frame (312) is fixedly connected to the top of the fixing platform (5); The fourth cylinder (313) is fixedly mounted on the second fixed bracket (312); The second guide rail (314) is fixedly installed on the second fixing bracket (312); The oiling plate (315) is slidably disposed outside the second guide rail (314), and the output end of the fourth cylinder (313) is connected to the oiling plate (315) in a transmission manner. A limiting component is provided on a fixed platform (5) for adjusting the position of hinge components; The discharge assembly is set on the workbench (1) and is used to output the assembled hinge.

4. The spring hinge assembly device for a freezer according to claim 3, characterized in that, The limiting component includes: The fifth cylinder (316) and the sixth cylinder (317) are fixedly installed on the top of the fixed platform (5); The extrusion head (318) is connected to the output end of the fifth cylinder (316) via a transmission connection. The extrusion tube (319) is connected to the output end of the sixth cylinder (317) via a transmission connection.

5. The spring hinge assembly device for a freezer according to claim 3, characterized in that, The discharge assembly includes: The discharge rack (320) is fixedly connected to the top of the workbench (1); The seventh cylinder (321) is fixedly installed on the top of the discharge rack (320); The output end of the seventh cylinder (321) is connected to the pressing plate (322) for driving and flattening the hinge; The eighth cylinder (323) is fixedly installed inside the discharge rack (320); Push plate (324), the output end of the eighth cylinder (323) is connected to push plate (324) in a transmission manner; The discharge hopper (325) is fixedly connected to the top of the workbench (1).

6. The spring hinge assembly device for a freezer according to claim 1, characterized in that, The supporting mechanism (4) includes: Rotating platform (41), which is rotatably mounted on the outside of fixed platform (5); The outer wall of the rotating table (41) is provided with rotating grooves at equal intervals, and the bearing plate (42) is rotatably disposed inside the rotating grooves via a rotating shaft; Gear (43), through slots are provided at equal intervals on the rotating table (41), the gear (43) is rotatably disposed inside the through slots, and the gear (43) is fixedly inserted and connected to the rotating shaft; A snap-fit ​​assembly is disposed inside the support plate (42); The supporting mold (424) is mounted on the top and bottom of the supporting plate (42) by means of a snap-fit ​​assembly; An adjustment component is provided at the bottom end of the rotating table (41) for adjusting the mold state; A drive assembly is disposed on the worktable (1) and is used to control the rotation of the rotary table (41).

7. The spring hinge assembly device for a freezer according to claim 6, characterized in that, The snap-fit ​​assembly includes: A fixing block (44) is fixedly connected to the top and bottom of the bearing plate (42), and a fixing groove that cooperates with the fixing block (44) is provided on the bearing mold (424); The snap-fit ​​block (45) has a snap-fit ​​groove on the fixing block (44), the snap-fit ​​block (45) is slidably inserted into the inner cavity of the snap-fit ​​groove, the upper wall of the fixing groove has a snap-fit ​​hole that matches the snap-fit ​​block (45), and the outer wall of the snap-fit ​​block (45) has an inclined surface. The first compression spring (46) is fixedly connected to the end of the snap-fit ​​block (45); The first extrusion rod (47) has a first inclined groove on the snap-fit ​​block (45), and the first extrusion rod (47) is slidably inserted into the inner cavity of the first inclined groove; The extrusion frame (48) has the end of the first extrusion rod (47) fixedly connected to the extrusion frame (48), and the top and bottom ends of the bearing plate (42) are provided with adjustment grooves. The extrusion frame (48) is slidably inserted into the inner cavity of the adjustment groove. The first extrusion plate (49) is fixedly connected to the opposite side of the extrusion frame (48); Unlocking rod (410), the inside of the bearing plate (42) is provided with an unlocking groove, the unlocking rod (410) is slidably inserted into the inner cavity of the unlocking groove, and the unlocking rod (410) is slidably inserted into the inner cavity of the first pressing plate (49); The slide bar (411) has elastic grooves at both the top and bottom of the unlocking groove, and the end of the slide bar (411) is fixedly connected to the inner wall of the elastic groove. The slider (412) is slidably connected to the slide rod (411), and the slider (412) is fixedly connected to the top and bottom of the unlocking rod (410); The second compression spring (413) is sleeved on the outside of the slide rod (411); The squeezing ring (414) has an annular groove inside the rotating platform (41), and the squeezing ring (414) is located inside the annular groove. The outer wall of the squeezing ring (414) has squeezing grooves at equal intervals. The end of the unlocking rod (410) passes through the inner cavity of the rotating shaft and cooperates with the squeezing groove.

8. The spring hinge assembly device for a freezer according to claim 7, characterized in that, The adjustment component includes: Rotating ring (415), the rotating ring (415) is rotatably sleeved on the outside of the rotating platform (41); A toothed ring (416) is embedded at the top of a rotating ring (415) and meshes with a gear (43); The first electric telescopic rod (417) is fixedly installed at the bottom end of the rotating ring (415); The first positioning block (418) is connected to the output end of the electric telescopic rod (417) in a transmission connection. The bottom end of the extrusion ring (414) is provided with a first positioning hole that cooperates with the first positioning block (418). The second electric telescopic rod (419) is fixedly installed at the bottom end of the rotating ring (415); The output end of the electric telescopic rod (419) is connected to the second positioning block (420) in a transmission manner, and the bottom end of the compression ring (414) is provided with a second positioning hole that cooperates with the second positioning block (420).

9. The spring hinge assembly device for a freezer according to claim 6, characterized in that, The driving component includes: The motor (421) is fixedly installed on the top of the workbench (1); A reversing gear ring (422) is fixedly sleeved on the outside of the rotating table (41); The reversing gear (423) is connected to the output end of the motor (421) via a transmission, and the reversing gear ring (422) meshes with the reversing gear (423).

10. An assembly method for a spring hinge assembly device for a refrigerator according to any one of claims 1-9, characterized in that, The specific usage steps are as follows: Step 1: Place the hinge components, namely the strut, spring, spring guide sleeve, and spring seat, into the corresponding vibratory feeder (2). The vibratory feeder (2) arranges the components in an orderly manner and transports them to the corresponding placement rack (39). At the same time, the hinge bracket is transported to the designated position by the conveyor (311). For the strut component placed in a specific slot, the third cylinder (310) performs a pushing action to accurately push it to the predetermined position deep in the placement rack (39). Step 2: The first cylinder (34) drives the sliding frame (33) to move horizontally along the first guide rail (32), so that the pneumatic clamp (38) moves above the target part. The second cylinder (35) drives the mounting plate (36) to descend. The pneumatic clamp (38) clamps the part under the control of the air source. Then the second cylinder (35) lifts the mounting plate (36). The first cylinder (34) moves again to move the sliding frame (33) above the current position of the bearing mechanism (4). Step 3: The second cylinder (35) descends again, the pneumatic clamp (38) places the part on the bearing mold (424), the drive assembly drives the rotating table (41) to rotate at a fixed angle, and moves the bearing plate (42) to the next station. Repeat steps 2 and 3 to assemble the strut, spring, spring guide sleeve, spring seat and hinge bracket in sequence. Step 4: When rotating to the position of the oiling plate (315), the fourth cylinder (313) drives the oiling plate (315) to move along the second guide rail (314) to automatically apply oil to the contact point between the support rod and the hinge bracket. Step 5: When assembling the spring and spring seat, the fifth cylinder (316) and the sixth cylinder (317) of the limiting assembly can push the extrusion head (318) and the extrusion tube (319) respectively to fine-tune or press the placed parts to ensure that they are in the correct assembly position. Step 6: After all parts are assembled, the rotating table (41) rotates the finished hinge to the discharge station. The pneumatic clamp (38) clamps the folded finished hinge onto the discharge rack (320). The seventh cylinder (321) drives the pressing plate (322) to press down, flattening the folded hinge into a horizontal state. The eighth cylinder (323) drives the push plate (324) to move horizontally, pushing the flattened hinge into the discharge hopper (325) to complete the automatic unloading.

Images