Punching process for top cover of refrigerator

Abstract

The invention discloses a punching process for a top cover of a refrigerator, which specifically comprises the following steps: step 1, firstly placing the top cover of the refrigerator on a fixed table, placing a punching position under a punching rod, extending a lifting rod through an output end to drive the punching rod to descend for punching, and driving a motor to drive the punching rod to rotate after punching, the cutter slides out to rotate along with centrifugal force so as to cut off the punched pores, and the cutter rotates in the punched holes so that the grinding lines can grind the interiors of the punched holes; secondly, when a punching rod descends for punching, the punching rod makes contact with a clamping wheel to obtain side protection, meanwhile, the clamping wheel and a rotating rod drive a winding drum to rotate and wind a traction rope, and the problems that when existing refrigerator shell metal plate punching equipment is used, on one hand, machining steps are tedious, so that the machining efficiency is reduced, and on the other hand, the machining effect is poor; and a punched hole is easily polished to be conical, so that subsequent use is not facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of sheet metal punching, in particular to a punching process for a refrigerator top cover. Background Art

[0002] The existing device is unable to remove the burrs generated on the inner wall and edge of the hole during punching, which reduces the quality of punching of sheet metal parts. At the same time, it is unable to collect the dust and debris generated during processing, cannot prevent dust pollution, and cannot separate dust from sheet metal debris, which reduces the practicality of the device. A sheet metal punching equipment for manufacturing refrigerator shells with application number CN202210601467.6 includes a processing table, which can remove the burrs generated on the inner wall and edge of the hole during punching, thereby improving the quality of punching of sheet metal parts.

[0003] Although the device has the above advantages, it still has the following defects in actual use:

[0004] 1) When the device processes the refrigerator top cover, when removing the punching burrs, there is repeated lifting and lowering movement of the punch head and the grinding head, resulting in a decrease in the overall processing efficiency;

[0005] 2) The grinding head of the device is in the shape of a truncated cone, which has poor effect on removing burrs and grinding inside the punching hole, and it is easy to grind the punching hole into a cone, which is not conducive to subsequent use.

[0006] Therefore, it is necessary to solve the problems that still exist in the existing devices. Summary of the invention

[0007] In view of the shortcomings of the prior art, the present invention provides a punching process for a refrigerator top cover, which solves the problems that when the existing refrigerator shell sheet metal punching equipment is used, on the one hand, the processing steps are cumbersome, resulting in reduced processing efficiency; on the other hand, the processing effect is poor, and the punched holes are easily polished into a cone, which is not conducive to subsequent use.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: A punching process for a refrigerator top cover, specifically comprising the following steps:

[0009] Step 1: First, place the refrigerator top cover on the fixed platform, and place the punching position directly below the punch rod. The lifting rod extends through the output end to drive the punch rod to descend for punching. After punching, the driving motor drives the punch rod to rotate. The centrifugal force causes the cutter to slide out and rotate with it to cut off the punching pores. The grinding pattern grinds the inside of the punch hole by rotating inside the punch hole.

[0010] Step 2: When the punch rod descends to punch a hole, it is protected by the side by contacting the clamping wheel. At the same time, the clamping wheel and the rotating rod drive the reel to rotate and wrap the traction rope, so that the connecting plate on one side pulls the output end of the spring rod. Through the action of the rangefinder, the descending position of the punch rod can be located to facilitate the removal of burrs.

[0011] Step three, use the top frames on both sides to support the inside of the through hole, which not only improves the force-bearing capacity of the refrigerator top cover, but also provides side protection for the punch rod. When cutting off burrs, the top frame moves to the inside of the material frame to facilitate the movement of the cutter inside the through hole. At the same time, the fan drives the air flow, so that the burrs fall into the inside of the material frame after cutting off, and are discharged through the inclined plate and the material trough. The fan drives the lever and the plate to rotate synchronously, so that the inclined plate vibrates through the tough plate and the support plate, thereby facilitating the guiding of the burrs and the circulation of air.

[0012] Preferably, including:

[0013] A fixed platform for supporting and providing a processing position, wherein a fixed frame for supporting is arranged on the fixed platform;

[0014] A punching mechanism, wherein the punching hole is arranged between the fixed frame and the fixed platform, and the punching mechanism comprises a punching rod, and the punching rod punches the refrigerator top cover by moving up and down, and the punching rod is also provided with a cutter that penetrates and slides on its body, and the cutter slides horizontally by the centrifugal force generated by the rotation of the punching rod, and cuts off the burrs by following the rotation of the punching rod, and the outer end of the cutter is provided with a grinding pattern, and the grinding pattern grinds the inside of the punching hole by following the cutter to rotate inside the punching hole;

[0015] A positioning assembly, which is arranged on the fixed frame and acts on the surface of the punch rod to achieve the positioning of the punch rod's punching distance and to provide side protection for the punch rod;

[0016] A dust suction component is arranged below the fixing table to absorb and discharge the cut burrs through air flow.

[0017] Preferably, an inner cavity is provided on the body of the punch rod, one side of the outer surface of the cutter extends to the interior of the inner cavity, the outer surface of the cutter is fixedly connected to a push strip, the body of the push strip is slidably connected with a fixed rod, the end of the fixed rod is fixedly connected to the interior of the inner cavity, the outer surface of the fixed rod is sleeved with a compression spring, one end of the punch rod is rotatably connected with a connecting frame, the outer surface of the connecting frame is fixedly connected to the outer surface of the fixed frame through a lifting rod, the outer surface of the connecting frame is fixedly connected to a driving motor, the output end of the driving motor is fixedly connected to one end of the punch rod through a coupling, the outer surface of the punch rod is fixedly connected to two splints through and, the outer surfaces of the two splints are movably connected to the outer surface of the connecting block.

[0018] Preferably, the positioning assembly comprises a rotating frame, a rotating rod is rotatably connected to the main body of the rotating frame, a clamping wheel is fixedly connected to the outer surface of the rotating rod, and the outer surface of the clamping wheel is movably connected to the outer surface of the punch rod.

[0019] Preferably, one end of the rotating rod is fixedly connected to a reel, a spring rod is provided on the outside of the reel, both ends of the spring rod are fixedly connected to connecting plates, the outer surface of the connecting plate on one side is fixedly connected to the outer surface of the rotating frame, and the outer surface of the connecting plate on the other side is slidably connected to the outer surface of the rotating frame, a rangefinder is fixedly connected to the outer surface of the connecting plate on one side, and the outer surface of the connecting plate on the other side is connected to the outer surface of the reel through a traction rope.

[0020] Preferably, the dust suction component includes a through hole, which is opened on the body of the solid platform and is in a through state, the interior of the through hole is movably connected to the outer surface of the punch rod, a material frame is provided outside the through hole, the outer surface of the material frame is fixedly connected to the bottom of the solid platform, the body of the material frame is opened with a through material trough, the interior of the material trough is fixedly connected with an inclined plate, one side of the outer surface of the inclined plate extends to the interior of the material frame and is fixedly connected to the inner wall of the material frame, the outer surface of the inclined plate is fixedly connected to a solid plate, and a fan is fixedly connected to the body of the solid plate.

[0021] Preferably, a support unit is provided inside the material frame, and the support unit includes a fixed frame, an outer surface of the fixed frame is fixedly connected to the inside of the material frame, one side of the outer surface of the fixed frame is fixedly connected to the inner wall of the material frame through a push-pull rod, and a top frame is provided above the fixed frame, the outer surface of the top frame is movably connected to the material frame and the inside of the through hole respectively, and a rubber plate is fixedly connected between the outer surfaces of the fixed frame and the top frame.

[0022] Preferably, a slide rail is fixedly connected to the interior of the fixed frame, and two linear motors are fixedly connected to the outer surface of the slide rail. The outer surfaces of the two linear motors are rotatably connected to rotating plates, and one side of the outer surfaces of the two rotating plates is rotatably connected to the interior of the top frame.

[0023] Preferably, a vibration unit is provided on the outside of the inclined plate, and the vibration unit includes a shift rod, the outer surface of the shift rod is rotatably connected to the inside of the material frame, one end of the shift rod is fixedly connected to the output end of the driving machine of the fan through a coupling, the other end of the shift rod is sleeved with a fixed sleeve, the outer surface of the fixed sleeve is fixedly connected to the inside of the material frame, and the outer surface of the shift rod is fixedly connected to a shift plate.

[0024] Preferably, a support plate is provided on the outside of the lever, and a through rotation groove is opened on the body of the support plate. The outer surfaces of the lever and the lever plate are rotatably connected to the inside of the rotation groove. A flexible plate is fixedly connected to the inside of the rotation groove, and the outer surface of the flexible plate is movably connected to the outer surface of the lever plate.

[0025] Beneficial Effects

[0026] The present invention provides a punching process for a refrigerator top cover. Compared with the prior art, the present invention has the following beneficial effects:

[0027] (1) By setting up a punching mechanism, when the punch rod resets the punch hole on the refrigerator top cover, the driving motor drives the punch rod to rotate, so that the centrifugal force is used to make the cutter slide horizontally, and the cutter rotates along with the punch rod, so as to cut off the burr. When the cutter is inside the punch hole, the inner wall of the punch hole can be polished by the grinding groove, so that the burr processing is completed when the punch rod is reset, which saves processing steps and improves processing efficiency.

[0028] (2) By setting up a positioning component and utilizing the contact between the clamp wheel and the punch rod, the connecting plate on one side is driven to move by the rotation of the clamp wheel, and the distance between the connecting plates on both sides is measured by a distance meter to locate the position of the punch rod. This makes it easier to accurately understand the position of the cutter when punching workpieces of different thicknesses, so as to facilitate the processing of burrs.

[0029] (3) By setting up a dust suction component and using a fan to drive the air flow, the burrs and grinding chips are removed by air pressure and gravity, so that they fall into the material frame. The waste chips are discharged through the material trough through the guidance of the inclined plate and the suction of the airflow, thereby facilitating continuous processing operations without the problem of waste chip accumulation affecting processing efficiency.

[0030] (4) By setting up a support unit and using a linear motor to drive the rotating plate to move, the top frame can be pushed to move, and the top frame can be used to fill the inside of the through hole. On the one hand, the refrigerator top cover can be supported to avoid deformation around the punching hole. On the other hand, the burr volume can be reduced, reducing the cutting time to improve processing efficiency. At the same time, the arc groove of the top frame can provide side protection for the bottom of the punch rod. At the same time, the top frame moves to the inside of the material frame through the push-pull rod, which is also convenient for the cutter to cut the burr.

[0031] (5) By setting up a vibration unit, the output end of the fan is used to drive the lever and the paddle plate to rotate, and the paddle plate is used to paddle the flexible plate to deform, and the flexible plate is reshaped to generate vibration, which is transmitted through the support plate so that the inclined plate follows the vibration, thereby facilitating the diversion of waste chips and avoiding the problem of filter hole clogging affecting air flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a three-dimensional diagram of the internal structure of the present invention;

[0033] Figure 2 It is a three-dimensional diagram of the external structure of the connected frame of the present invention;

[0034] Figure 3A three-dimensional diagram of the internal structure of the punch of the present invention;

[0035] Figure 4 The figure is a three-dimensional diagram of the external structure of the rotating frame of the present invention;

[0036] Figure 5 A three-dimensional diagram of the internal structure of the material frame of the present invention;

[0037] Figure 6 A three-dimensional diagram of the internal structure of the fixed frame of the present invention;

[0038] Figure 7 It is a three-dimensional diagram of the internal structure of the support plate of the present invention.

[0039] In the figure: 1, fixing table; 2, punch rod; 3, positioning assembly; 31, rotating frame; 32, rotating rod; 33, clamping wheel; 34, reel; 35, spring rod; 36, connecting plate; 37, distance meter; 4, clamping plate; 5, dust suction assembly; 51, through hole; 52, material frame; 53, supporting unit; 531, fixing frame; 532, push-pull rod; 533, top frame; 534, rubber plate; 535, slide rail; 536, straight line Motor; 537, rotating plate; 54, material trough; 55, inclined plate; 56, vibration unit; 561, shift rod; 562, fixed sleeve; 563, shift plate; 564, support plate; 565, rotating trough; 566, tough plate; 57, fixed plate; 58, fan; 6, inner cavity; 7, cutting knife; 8, grinding pattern; 9, push strip; 10, fixed rod; 11, compression spring; 12, connecting frame; 13, lifting rod; 14, driving motor. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figure 1-7 The present invention provides a technical solution: a punching process for a refrigerator top cover: specifically comprising the following steps:

[0042] Step 1: First, place the refrigerator top cover on the fixing platform 1, and place the punching position directly below the punch rod 2. The lifting rod 13 extends through the output end to drive the punch rod 2 to descend for punching. After punching, the driving motor 14 drives the punch rod 2 to rotate, and the centrifugal force causes the cutter 7 to slide out and rotate with it to cut off the punching pores, and the grinding pattern 8 grinds the inside of the punching hole by rotating inside the punching hole.

[0043] Step 2: When the punch rod 2 is lowered to punch, it is protected by the side by contacting the clamping wheel 33. At the same time, the clamping wheel 33 and the rotating rod 32 drive the reel 34 to rotate and wind the traction rope, so that the connecting plate 36 on one side pulls the output end of the spring rod 35. Through the action of the rangefinder 37, the lowering position of the punch rod 2 can be located to facilitate the removal of burrs.

[0044] Step three, use the top frames 533 on both sides to support the inside of the through hole 51, which not only improves the force-bearing capacity of the refrigerator top cover, but also can protect the punch rod 2 from the side. When cutting off burrs, the top frame 533 moves to the inside of the material frame 52, which facilitates the movement of the cutter 7 inside the through hole 51. At the same time, the fan 58 drives the air flow, so that the burrs fall into the inside of the material frame 52 after cutting, and are discharged through the inclined plate 55 and the material trough 54. The fan 58 drives the lever 561 and the lever plate 563 to rotate synchronously, so that the inclined plate 55 vibrates through the tough plate 566 and the support plate 564, thereby facilitating the guiding of the burrs and the circulation of air.

[0045] Embodiment 1: Refer to the attached manual Figure 1 , Attachment Figure 2 , Attachment Figure 3 ;

[0046] It includes a solid platform 1, a solid frame is arranged on the top of the solid platform 1, the solid frame is used to support the stamping mechanism and provide a stamping space, a punching mechanism is arranged on the outside of the solid frame, the punching mechanism includes a punch rod 2, an inner cavity 6 is opened on the body of the punch rod 2, a cutter 7 is slidably connected to the inside of the inner cavity 6, a cutting edge is arranged on one side of the cutter 7 to cut off the burrs, one end of the cutter 7 is slidably connected to the body of the punch rod 2 and extends to the outside of the punch rod 2, a grinding pattern 8 is arranged on one end of the cutter 7, the grinding pattern 8 can grind the inside of the punching hole, the other end of the cutter 7 is fixedly connected to a push strip 9, the body of the push strip 9 is slidably connected to a solid rod 10, the combination of the solid rod 10 and the push strip 9 can improve the sliding stability of the cutter 7, the end of the solid rod 10 is fixedly connected to the inside of the inner cavity 6, the outer surface of the solid rod 10 is sleeved with a compression spring 11, and the compression spring 11 can be conveniently The cutter 7 is reset, and the disordered movement of the cutter 7 can also be avoided through elasticity, thereby affecting the punching effect. One end of the punch rod 2 is rotatably connected with a connecting frame 12. The outer surface of the connecting frame 12 is fixedly connected to the outer surface of the fixed frame through a lifting rod 13. The lifting rod 13 is made of an existing hydraulic rod and is connected to an external control circuit. The outer surface of the connecting frame 12 is fixedly connected with a drive motor 14, and the drive motor 14 is electrically connected to the external control circuit. The output end of the drive motor 14 is fixedly connected to one end of the punch rod 2 through a coupling. The outer surface of the punch rod 2 is fixedly connected with two splints 4. The splints 4 improve the center of gravity stability of the connection between the punch rod 2 and the connecting frame 12, and can also improve the force resistance to avoid the problem of impact damage to the output end of the drive motor 14. The outer surfaces of the two splints 4 are movably connected to the outer surface of the connecting frame 12.

[0047] In this embodiment, the refrigerator top cover is placed on the fixed platform 1, and the punching area is located directly below the punch rod 2. Then the output end of the lifting rod 13 extends out, driving the punch rod 2 to descend for punching operation, and after punching, the cutter 7 is located below the refrigerator top cover, and then the output end of the lifting rod 13 retracts to drive the punch rod 2 to rise and reset. During the resetting process, the driving motor 14 drives the punch rod 2 to rotate, and the centrifugal force is used to make the push strip 9 along the fixed rod 10, push the cutter 7 out of the inner cavity 6, and compress the compression spring 11. After the cutter 7 slides out, it rotates with the punch rod 2, and the burr can be cut off by following the rise. When the top of the cutter 7 fits with the bottom of the top cover, the punch rod 2 stops rising and rotating, driving the punch rod 2 to stabilize, and the compression spring 11 resets the cutter 7 by rebounding. Then the punch rod 2 drives the cutter 7 to enter the inside of the punching hole, and by rising and rotating again, the inside of the punching hole can be polished through the grinding pattern 8 until the punch rod 2 is raised and reset, and the punching and burr processing can be performed in one step.

[0048] Embodiment 2: Based on Embodiment 1, refer to the attached Figure 1 , Attachment Figure 4 ;

[0049] The outside of the punch rod 2 is provided with a positioning assembly 3, and the positioning assembly 3 includes a rotating frame 31, the body of the rotating frame 31 is rotatably connected with a rotating rod 32, and the outer surface of the rotating rod 32 is fixedly connected with a clamping wheel 33, which can be made of rubber material to facilitate contact with the punch rod 2 for rotation by increasing contact friction and reducing the cost of replacement due to wear and tear. The clamping wheel 33 is mirror-imaged in two groups on the left and right to provide side protection for the punch rod 2, thereby improving the stability of the punch rod 2 and the accuracy of punching. The outer surface of the clamping wheel 33 is movably connected to the outer surface of the punch rod 2, one end of the rotating rod 32 is fixedly connected with a reel 34, a traction rope is wound around the reel 34, and a spring rod 35 is arranged on the outside of the reel 34. The transmission of the spring rod 35 The output end is extended and automatically reset by elastic force, so that the position of the impact rod 2 can be easily positioned according to the sliding distance. Both ends of the spring rod 35 are fixedly connected with connecting plates 36. A calibration area is provided on the connecting plate 36 on one side for sliding to facilitate laser ranging operations. The outer surface of the connecting plate 36 on one side is fixedly connected to the outer surface of the rotating frame 31, and the outer surface of the connecting plate 36 on the other side is slidably connected to the outer surface of the rotating frame 31. The outer surface of the connecting plate 36 on one side is fixedly connected with a rangefinder 37, which is made of a laser measuring instrument with model 37YHJ-200J and is electrically connected to an external control circuit. The outer surface of the connecting plate 36 on the other side is connected to the outer surface of the reel 34 through a traction rope.

[0050] In this embodiment, when the punch rod 2 descends to punch a hole, it first contacts the clamping wheels 33 on both sides, which can not only obtain the side protection to enhance its own stability and force-bearing capacity to improve the punching accuracy, but also make the clamping wheel 33 drive the reel 34 to rotate through the rotating rod 32 through the contact friction. The reel 34 winds up the traction rope, and pulls the output end of the spring rod 35 out through the traction rope and the connecting plate 36 on one side. When the punching is completed, the distance between the connecting plates 36 on both sides is measured by the laser ranging technology of the rangefinder 37 to locate the relative positions of the punch rod 2 and the cutter 7, so as to facilitate the punching process suitable for workpieces of different thicknesses and facilitate the treatment of burrs by the cutter 7.

[0051] Embodiment 3: Based on Embodiment 2, refer to the attached Figure 1 , Attachment Figure 5 ;

[0052] A dust collecting assembly 5 is arranged outside the punch rod 2, and the dust collecting assembly 5 includes a through hole 51, and the internal range of the through hole 51 is larger than the cross-sectional area of ​​the punch rod 2, so as to facilitate the cutting operation of the cutter 7 on the burrs after punching. The through hole 51 is opened on the body of the fixing table 1 and is in a through state. The inside of the through hole 51 is movably connected to the outer surface of the punch rod 2, and a material frame 52 is arranged outside the through hole 51. The outer surface of the material frame 52 is fixedly connected to the bottom of the fixing table 1, and the body of the material frame 52 is provided with a through material trough 54. The material trough 54 can facilitate the discharge of waste chips. The interior of the material trough 54 is fixedly connected with an inclined plate 55, which is made of an existing filter plate. The inclined plate 55 can be easily diverted to the waste chips by being inclined. One side of the outer surface of the inclined plate 55 extends to the interior of the material frame 52 and is fixedly connected to the inner wall of the material frame 52. The outer surface of the inclined plate 55 is fixedly connected with a fixed plate 57. The body of the fixed plate 57 is fixedly connected with a fan 58. The driving machine of the fan 58 is made of a double-axis motor and is electrically connected to an external control circuit.

[0053] In this embodiment, the cutter 7 cuts off the burrs and the waste chips generated by grinding the grinding grooves 8, and the waste chips fall into the material frame 52 through the through hole 51 by gravity. At the same time, the fan 58 drives the air to flow, so that the air flows through the filter holes of the inclined plate 55 and is discharged through the material trough 54, thereby pushing the waste to fall into the material frame 52 through the airflow, and through the suction effect of the air pressure difference, the waste chips are discharged from the material trough 54 to the outside of the material frame 52, thereby improving the efficiency and effect of waste collection and discharge, and avoiding the problem of waste accumulation affecting the collection function of the material frame 52 on the waste, and avoiding affecting continuous processing.

[0054] Embodiment 4: Based on Embodiment 3, refer to the attached Figure 1 , Attachment Figure 6 ;

[0055] A support unit 53 is provided inside the material frame 52, and the support unit 53 includes a fixed frame 531. The outer surface of the fixed frame 531 is fixedly connected to the inside of the material frame 52. One side of the outer surface of the fixed frame 531 is fixedly connected to the inner wall of the material frame 52 through a push-pull rod 532. The push-pull rod 532 is made of an electric push rod and is electrically connected to an external control circuit. A top frame 533 is provided above the fixed frame 531. The thickness of the top frame 533 is the same as the depth of the through hole 51, and the cross-sectional dimensions of the top frame 533 and the fixed frame 531 are the same. At the same time, arc grooves that are compatible with the surface of the punch rod 2 are provided on the surface, and two groups are provided in a mirror image. A cylindrical channel is formed by closing the arc grooves on both sides, which can protect the bottom of the punch rod 2 to improve the accuracy of punching. The outer surface of the top frame 533 is movably connected to the inside of the material frame 52 and the through hole 51 respectively, and the outer surfaces of the fixed frame 531 and the top frame 533 are fixedly connected There is a rubber plate 534, which is made of a rubber material and plays a role in sealing the connection between the top frame 533 and the fixed frame 531. When the top frame 533 is inside the through hole 51, the rubber plate 534 is in a stretched and taut state. The inside of the fixed frame 531 is fixedly connected with a slide rail 535. The outer surface of the slide rail 535 is fixedly connected with two linear motors 536. The linear motor 536 is electrically connected to an external control circuit. The outer surfaces of the two linear motors 536 are both rotatably connected with a rotating plate 537. The two ends of the rotating plate 537 are rotatably connected through a U-shaped bracket, and the U-shaped bracket inside the top frame 533 is fixedly connected to the left and right sides of the inner wall above the top frame 533, thereby providing a larger support range when the rotating plate 537 lifts the top frame 533 to improve the stability and force resistance of the top frame 533. One side of the outer surface of the two rotating plates 537 is rotatably connected to the inside of the top frame 533.

[0056] In this embodiment, before punching the refrigerator top cover, the output end of the push-pull rod 532 extends through the fixed frame 531 to drive the top frame 533 to move to the bottom of the through hole 51, and then the linear motor 536 slides from the middle of the slide rail 535 to both sides, thereby driving the rotating plate 537 to follow the movement, and the rotating plate 537 lifts the top frame 533 to the inside of the through hole 51 until the rotating plate 537 is perpendicular to the slide rail 535, and the top of the top frame 533 is flush with the top of the fixed platform 1, and the inside of the through hole 51 is filled to improve the punching effect. After the punching is completed, the top frame 533 and the fixed frame 531 are reset, so that the through hole 51 is in a transparent state to facilitate the cutting of the burrs by the cutter 7.

[0057] Embodiment 5: Based on Embodiment 4, refer to the attached Figure 1 , Attachment Figure 7 ;

[0058] The outside of the inclined plate 55 is provided with a vibration unit 56, and the vibration unit 56 includes a lever 561, the outer surface of the lever 561 is rotatably connected to the inside of the material frame 52, one end of the lever 561 is fixedly connected to the output end of the driving machine of the fan 58 through a coupling, and the other end of the lever 561 is sleeved with a fixed sleeve 562, and the fixed sleeve 562 can support one end of the lever 561 to improve the balance of the lever 561, and the outer surface of the fixed sleeve 562 is fixedly connected to the inside of the material frame 52, and the outer surface of the lever 561 is fixedly connected to the outside of the material frame 52. There is a shift plate 563, a support plate 564 is arranged on the outside of the shift rod 561, a through rotation groove 565 is opened on the body of the support plate 564, the outer surfaces of the shift rod 561 and the shift plate 563 are rotatably connected to the inside of the rotation groove 565, a flexible plate 566 is fixedly connected to the inside of the rotation groove 565, a plurality of flexible plates 566 are arranged at equal angles inside the rotation groove 565 to increase the vibration frequency, and are made of materials with good toughness, pressure resistance, wear resistance and fatigue resistance, and the outer surface of the flexible plate 566 is movably connected to the outer surface of the shift plate 563.

[0059] In this embodiment, when the fan 58 is working, the output end drives the lever 561 to rotate synchronously, so that the lever plate 563 rotates synchronously inside the rotating groove 565. When the lever plate 563 rotates, it contacts with multiple flexible plates 566, thereby shifting the flexible plates 566 to deform, and vibration is generated through the flexible plates 566. The vibration is transmitted through the support plate 564 so that the inclined plate 55 follows the vibration. On the one hand, it facilitates the material guiding function of the inclined plate 55, and on the other hand, it prevents the filter holes from being blocked, affecting the air flow, thereby affecting the discharge effect of the waste chips.

[0060] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A punching process for a refrigerator top cover, characterized in that: The specific steps include: Step 1: first, place the refrigerator top cover on the fixed platform (1), and place the punching position directly below the punch rod (2). The lifting rod (13) extends through the output end to drive the punch rod (2) to descend for punching. After punching, the driving motor (14) drives the punch rod (2) to rotate, and the centrifugal force causes the cutter (7) to slide out and rotate with it to cut off the punched pores. The grinding pattern (8) grinds the inside of the punch hole by rotating inside the punch hole. Step 2: When the punch rod (2) is lowered to punch a hole, it is protected by the side by contacting the clamping wheel (33). At the same time, the clamping wheel (33) and the rotating rod (32) drive the reel (34) to rotate and wind the traction rope, so that the connecting plate (36) on one side pulls the output end of the spring rod (35). Through the action of the distance meter (37), the lowering position of the punch rod (2) can be located to facilitate the removal of burrs. Step 3: Use the top frames (533) on both sides to support the inside of the through hole (51), which not only improves the force bearing capacity of the refrigerator top cover, but also provides side protection for the punch rod (2). When cutting off burrs, the top frame (533) moves to the inside of the material frame (52), which facilitates the movement of the cutter (7) inside the through hole (51). At the same time, the fan (58) drives the air flow, so that the burrs fall into the inside of the material frame (52) after cutting off, and are discharged through the inclined plate (55) and the material trough (54). The fan (58) drives the lever (561) and the lever (563) to rotate synchronously, so that the inclined plate (55) vibrates through the tough plate (566) and the support plate (564), thereby facilitating the material guiding of the burrs and the circulation of air.

2. The punching process for a refrigerator top cover according to claim 1, characterized in that: include: A fixed platform (1) for supporting and providing a processing position, wherein a fixed frame for supporting is arranged on the fixed platform (1); A punching mechanism, wherein the punching hole is arranged between the fixed frame and the fixed platform (1), and the punching mechanism comprises a punching rod (2), wherein the punching rod (2) punches the top cover of the refrigerator by moving up and down, and the punching rod (2) is also provided with a cutter (7) which penetrates and slides on its body, and the cutter (7) slides horizontally by the centrifugal force generated by the rotation of the punching rod (2), and cuts off the burrs by following the rotation of the punching rod (2), and the outer end of the cutter (7) is provided with a grinding pattern (8), and the grinding pattern (8) grinds the inside of the punching hole by following the cutter (7) to rotate inside the punching hole; A positioning component (3), wherein the positioning component (3) is arranged on the fixed frame and acts on the surface of the punch rod (2) to achieve the positioning of the punching distance of the punch rod (2) and to provide side protection for the punch rod (2); A dust suction component (5) is arranged below the fixing platform (1) and absorbs and discharges the cut burrs through air flow.

3. The punching process for a refrigerator top cover according to claim 2, characterized in that: The body of the punch rod (2) is provided with an inner cavity (6), one side of the outer surface of the cutter (7) extends into the interior of the inner cavity (6), the outer surface of the cutter (7) is fixedly connected with a push strip (9), the body of the push strip (9) is slidably connected with a fixed rod (10), the end of the fixed rod (10) is fixedly connected with the interior of the inner cavity (6), the outer surface of the fixed rod (10) is sleeved with a compression spring (11), one end of the punch rod (2) is rotatably connected with a connecting frame (12), the outer surface of the connecting frame (12) is fixedly connected with the outer surface of the fixed frame through a lifting rod (13), the outer surface of the connecting frame (12) is fixedly connected with a driving motor (14), the output end of the driving motor (14) is fixedly connected with one end of the punch rod (2) through a coupling, the outer surface of the punch rod (2) is fixedly connected with two clamping plates (4), and the outer surfaces of the two clamping plates (4) are movably connected with the outer surface of the connecting frame (12).

4. The punching process for a refrigerator top cover according to claim 2, characterized in that: The positioning assembly (3) comprises a rotating frame (31), the body of the rotating frame (31) is rotatably connected to a rotating rod (32), the outer surface of the rotating rod (32) is fixedly connected to a clamping wheel (33), and the outer surface of the clamping wheel (33) is movably connected to the outer surface of the punch rod (2).

5. The punching process for a refrigerator top cover according to claim 4, characterized in that: One end of the rotating rod (32) is fixedly connected to a reel (34), a spring rod (35) is arranged outside the reel (34), both ends of the spring rod (35) are fixedly connected to connecting plates (36), the outer surface of the connecting plate (36) on one side is fixedly connected to the outer surface of the rotating frame (31), the outer surface of the connecting plate (36) on the other side is slidably connected to the outer surface of the rotating frame (31), the outer surface of the connecting plate (36) on one side is fixedly connected to the outer surface of the rotating frame (31), the outer surface of the connecting plate (36) on the other side is connected to the outer surface of the reel (34) via a traction rope.

6. The punching process for a refrigerator top cover according to claim 2, characterized in that: The dust collecting assembly (5) comprises a through hole (51), the through hole (51) is provided on the body of the fixing platform (1) and is in a through state, the interior of the through hole (51) is movably connected to the outer surface of the punch rod (2), a material frame (52) is arranged outside the through hole (51), the outer surface of the material frame (52) is fixedly connected to the bottom of the fixing platform (1), the body of the material frame (52) is provided with a through material trough (54), the interior of the material trough (54) is fixedly connected to an inclined plate (55), one side of the outer surface of the inclined plate (55) extends to the interior of the material frame (52) and is fixedly connected to the inner wall of the material frame (52), the outer surface of the inclined plate (55) is fixedly connected to a fixing plate (57), and the body of the fixing plate (57) is fixedly connected to a fan (58).

7. The punching process for a refrigerator top cover according to claim 6, characterized in that: A support unit (53) is arranged inside the material frame (52), and the support unit (53) comprises a fixed frame (531). The outer surface of the fixed frame (531) is fixedly connected to the inside of the material frame (52), and one side of the outer surface of the fixed frame (531) is fixedly connected to the inner wall of the material frame (52) through a push-pull rod (532). A top frame (533) is arranged above the fixed frame (531), and the outer surface of the top frame (533) is movably connected to the inside of the material frame (52) and the through hole (51), respectively. A rubber plate (534) is fixedly connected between the outer surfaces of the fixed frame (531) and the top frame (533).

8. The punching process for a refrigerator top cover according to claim 7, characterized in that: The interior of the fixed frame (531) is fixedly connected to a slide rail (535), the outer surface of the slide rail (535) is fixedly connected to two linear motors (536), the outer surfaces of the two linear motors (536) are rotatably connected to a rotating plate (537), and one side of the outer surfaces of the two rotating plates (537) is rotatably connected to the interior of the top frame (533).

9. The punching process for a refrigerator top cover according to claim 6, characterized in that: A vibration unit (56) is arranged outside the inclined plate (55), and the vibration unit (56) comprises a lever (561), the outer surface of which is rotatably connected to the inside of the material frame (52), one end of which is fixedly connected to the output end of the driving machine of the fan (58) via a coupling, the other end of which is sleeved with a fixed sleeve (562), the outer surface of which is fixedly connected to the inside of the material frame (52), and the outer surface of which is fixedly connected to a lever plate (563).

10. The punching process for a refrigerator top cover according to claim 9, characterized in that: A support plate (564) is arranged outside the lever (561), and a through rotation groove (565) is provided on the body of the support plate (564). The outer surfaces of the lever (561) and the lever plate (563) are both rotatably connected to the inside of the rotation groove (565). A flexible plate (566) is fixedly connected to the inside of the rotation groove (565), and the outer surface of the flexible plate (566) is movably connected to the outer surface of the lever plate (563).

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