Grinding and polishing device for production of household refrigerator copper pipe aluminum fin spiral condenser

Abstract

The invention belongs to the technical field of condenser grinding, and particularly relates to a grinding and polishing device for producing a household refrigerator copper pipe aluminum fin spiral condenser, the grinding and polishing device comprises a heat dissipation coil pipe, a plurality of fixing supports and a grinding and polishing machine, and the fixing supports are connected to the outer side of the heat dissipation coil pipe in a sleeving mode and used for fixing the heat dissipation coil pipe; the grinding and polishing machine comprises a base, an embedded mold and a grinding mechanism. The grinding mechanism comprises a grinding cavity, an electric motor, a gear, a toothed bar, an air pressure cavity, an air pressure plate, a telescopic joint, a motor, a connecting cavity, a fluctuating plate, a connecting rod and a grinding ring. The embedded mold and the grinding cavity are both fixedly installed above the base, and the electric motor is fixedly installed on the inner wall of the grinding cavity. And therefore, the problem that the fixed bracket cannot be smoothly mounted during the subsequent mounting of the condenser is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of condenser grinding, and in particular relates to a grinding and polishing device for producing a copper tube aluminum fin spiral condenser of a household refrigerator. Background Art

[0002] The refrigerator copper tube aluminum fin spiral condenser is a highly efficient heat exchange device, which is widely used in modern refrigerator refrigeration systems. It uses copper tubes as pipes for the circulation of refrigerant, and aluminum fins are tightly wound around the copper tubes to form a spiral structure. This design not only increases the heat dissipation area and improves the heat exchange efficiency, but also makes the condenser more compact and lightweight. The aluminum fins have good thermal conductivity and corrosion resistance, and can effectively transfer the heat released by the refrigerant to the surrounding air, thereby realizing the refrigeration function of the refrigerator. A fixing bracket is required to fix the heat dissipation coil. The fixing bracket is cylindrical and is fixed to the outside of the heat dissipation coil by sleeve connection. The port of the fixing bracket needs to be polished, otherwise the burrs on the port will cause the heat dissipation coil to not be sleeved during installation, and it will be stuck at the sleeve connection, affecting the installation. This phenomenon has become a problem that needs to be solved urgently by people in this field. Summary of the invention

[0003] The object of the present invention is to provide a grinding and polishing device for producing a copper tube aluminum fin spiral condenser of a household refrigerator to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a grinding and polishing device for the production of copper tube aluminum fin spiral condensers for household refrigerators, comprising a heat dissipation coil, a plurality of fixed brackets and a grinding and polishing machine, wherein the plurality of fixed brackets are respectively sleeved on the outside of the heat dissipation coil and used to fix the heat dissipation coil; the grinding and polishing machine comprises a base, an embedded mold and a grinding mechanism, wherein the grinding mechanism comprises a grinding chamber, an electric motor, a gear, a gear rod, an air pressure chamber, an air pressure plate, a telescopic joint, a motor, a connecting chamber, an undulating plate, a connecting rod and a grinding ring; the embedded mold and the grinding chamber are both fixedly installed above the base, the electric motor is fixedly installed on the inner wall of the grinding chamber, and the The gear is fixedly connected to the output end of the electric motor, the air pressure chamber is fixedly installed at the bottom of the inner wall of the grinding chamber, the air pressure plate is slidably connected to the inner wall of the air pressure chamber, the telescopic joint is fixedly installed above the air pressure plate, the upper end of the gear rod is fixedly connected to the motor, and the lower end is fixedly connected to the upper end of the telescopic joint, a plurality of tooth blocks are arranged on the left side of the gear rod, and the tooth blocks are meshed with the gears, the connecting chamber is fixedly connected to the output end of the motor, the undulating plate is slidably connected to the inner wall of the connecting chamber, and is connected to the spring above the inner wall of the connecting chamber, the connecting rod is fixedly installed below the undulating plate, and the grinding ring is fixedly installed at the lower end of the connecting rod, and is located above the embedded mold.

[0005] The present invention further describes that a burr monitoring module is provided inside the embedded mold, and an intelligent control module is provided inside the electric motor. The burr monitoring module is electrically connected to the intelligent control module. The burr monitoring module is used to monitor the burr amount of the port of the fixed bracket. The intelligent control module is used to control the electric motor to rotate alternately in forward and reverse directions according to the burr amount of the port of the fixed bracket, and the number of alternating rotations in forward and reverse directions is the same, and the number of alternating rotations in forward and reverse directions is controlled.

[0006] The present invention further describes that a blowing hole is arranged inside the embedded mold, and the blowing hole is connected to the bottom pipeline of the air pressure cavity.

[0007] The present invention further illustrates that a magnetic disk is fixed to the outside of the connecting rod, a sleeve is fixed to the inner wall of the grinding chamber, a sliding hole is provided in the middle of the sleeve, and a rising and falling rod is slidably connected in the sliding hole, a sphere is fixed to the upper left end of the rising and falling rod, the sphere is magnetic, and its magnetic poles are opposite to those of the magnetic disk, an arc groove is provided at the bottom of the magnetic disk, and the sphere is rollingly connected to the inner wall of the arc groove.

[0008] The present invention further illustrates that an elastic spring is fixed to the right side of the inner wall of the grinding chamber, a squeezing ball is fixed to the left end of the elastic spring, and a push-pull ball is fixed to the right side of the gear rod. After the push-pull ball moves downward, it squeezes the squeezing ball against each other; a limiting rod is fixed to the front side of the undulating rod, and after the elastic spring is released, the squeezing ball collides with the limiting rod.

[0009] The present invention further describes that the top of the connecting chamber is connected to the top of the air pressure chamber through a hose, two sliders are provided on the left and right sides of the inner wall of the connecting chamber, and slide grooves are provided on the left and right sides of the undulating plate, and the sliders are slidably connected in the slide grooves.

[0010] The present invention further describes that the motor operates in a forward and reverse alternating rotation mode, and the number of turns of the forward and reverse alternating rotation is three turns each.

[0011] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention grinds and polishes the port of the fixed bracket by a grinding ring, thereby improving the quality of the fixed bracket, and facilitating the subsequent smooth installation of the copper tube aluminum fin spiral condenser of the household refrigerator, and then the electric motor rotates in the opposite direction, thereby driving the grinding ring to move upward to complete the grinding work, and the operation is automated, convenient and efficient, and the efficiency of grinding and polishing is greatly improved. At the same time, gas is sprayed above the blowing hole to blow out the impurities under grinding and polishing from the fixed bracket, thereby ensuring the monitoring quality of the burr monitoring module, avoiding monitoring errors that lead to reduced grinding quality or even damage to the fixed bracket, and if the fixed bracket is not polished clean in one grinding, multiple grindings can be performed through high-precision monitoring to ensure that the fixed bracket is fully polished clean;

[0012] When the port of the fixed bracket has a large amount of burrs, the electric motor rotates more times, and the grinding ring exerts a greater extrusion force on the port of the fixed bracket, thereby driving the ball to quickly push the disk upward through the undulating rod, driving the grinding ring to quickly move upward and away from the port of the fixed bracket, thereby protecting the fixed bracket from grinding and playing a role of emergency protection;

[0013] When there are a lot of impurities produced by grinding, a large amount of air is blown instantly to fully blow the impurities produced by grinding out of the fixed bracket, thereby further improving the monitoring accuracy of the grinding condition of the fixed bracket; and by setting the number of alternating forward and reverse rotations of the motor to three circles, the grinding quality can be guaranteed, further avoiding the occurrence of excessive grinding, and at the same time preventing the hose from being broken, thereby improving the stability of grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 is a plan view of the present invention;

[0017] Figure 3 It is a schematic diagram of the internal structure of the grinding chamber of the present invention;

[0018] Figure 4 It is a schematic diagram of the internal structure of the connecting cavity and the air pressure cavity of the present invention;

[0019] Figure 5 It is a schematic diagram of the structure of the connection cavity interior and the bottom of the magnetic disk of the present invention;

[0020] Figure 6 It is a schematic diagram of the pipe connection method between the connecting chamber and the air pressure chamber of the present invention;

[0021] Figure 7 It is a schematic diagram of a copper tube aluminum fin spiral condenser for a household refrigerator of the present invention;

[0022] In the figure: 1. base; 2. embedded mold; 21. blowing hole; 3. grinding chamber; 31. electric motor; 32. gear; 33. gear rod; 331. push-pull ball; 34. air pressure chamber; 341. air pressure plate; 342. telescopic joint; 35. motor; 36. connecting chamber; 361. ups and downs plate; 37. connecting rod; 371. grinding ring; 372. magnetic disk; 373. arc groove; 38. sleeve; 381. ups and downs rod; 382. sphere; 383. limit rod; 39. elastic spring; 391. squeezing ball. DETAILED DESCRIPTION

[0023] The following is a further non-limiting detailed description of the technical solution of the present invention in conjunction with the preferred embodiments and the accompanying drawings. 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.

[0024] See also Figure 1-7 The present invention provides a technical solution: a grinding and polishing device for the production of a copper tube aluminum fin spiral condenser of a household refrigerator, comprising a heat dissipation coil, a plurality of fixing brackets and a grinding and polishing machine, wherein the plurality of fixing brackets are respectively sleeved on the outside of the heat dissipation coil and used to fix the heat dissipation coil;

[0025] The grinding and polishing machine includes a base 1, an embedded mold 2 and a grinding mechanism, and the grinding mechanism includes a grinding chamber 3, an electric motor 31, a gear 32, a gear rod 33, an air pressure chamber 34, an air pressure plate 341, a telescopic joint 342, a motor 35, a connecting chamber 36, an undulating plate 361, a connecting rod 37 and a grinding ring 371;

[0026] The embedded mold 2 and the grinding chamber 3 are both fixedly installed above the base 1, the electric motor 31 is fixedly installed on the inner wall of the grinding chamber 3, the gear 32 is fixedly connected to the output end of the electric motor 31, the air pressure chamber 34 is fixedly installed at the bottom of the inner wall of the grinding chamber 3, the air pressure plate 341 is slidably connected to the inner wall of the air pressure chamber 34, the telescopic joint 342 is fixedly installed above the air pressure plate 341, the upper end of the gear rod 33 is fixedly connected to the motor 35, and the lower end is fixedly connected to the upper end of the telescopic joint 342, a plurality of tooth blocks are arranged on the left side of the gear rod 33, and the tooth blocks are meshed with the gear 32, the connecting chamber 36 is fixedly connected to the output end of the motor 35, the undulating plate 361 is slidably connected to the inner wall of the connecting chamber 36, and is connected to the spring above the inner wall of the connecting chamber 36, the connecting rod 37 is fixedly installed below the undulating plate 361, and the grinding ring 371 is fixedly installed at the lower end of the connecting rod 37, and is located above the embedded mold 2;

[0027] The operator places the fixed bracket in the embedded mold 2, and then starts the electric motor 31. At the same time, the motor 35 runs, and the electric motor 31 drives the gear 32 to rotate. The gear 32 drives the gear rod 33 to move downward through meshing, driving the motor 35, the connecting cavity 36, the undulating plate 361, the connecting rod 37 and the grinding ring 371 to move downward. The lower end of the gear rod 33 drives the air pressure plate 341 to slide downward along the inner wall of the air pressure cavity 34 through the telescopic joint 342 until the grinding ring 371 contacts the port of the fixed bracket. The motor 35 rotates, driving the connecting cavity 36, the undulating plate 361, the connecting rod 37 and the grinding ring 371 to rotate. The grinding ring 371 grinds and polishes the port of the fixed bracket to improve the quality of the fixed bracket, so as to facilitate the subsequent smooth installation of the copper tube aluminum fin spiral condenser of the household refrigerator. Then the electric motor 31 rotates in the opposite direction, thereby driving the grinding ring 371 to move upward to complete the grinding work. The operation is automated, convenient and efficient, and the efficiency of grinding and polishing is greatly improved.

[0028] A burr monitoring module is provided inside the embedded mold 2, and an intelligent control module is provided inside the electric motor 31. The burr monitoring module is electrically connected to the intelligent control module. The burr monitoring module is used to monitor the burr amount of the port of the fixed bracket. The intelligent control module is used to control the electric motor 31 to rotate alternately in the forward and reverse directions according to the burr amount of the port of the fixed bracket, and the number of turns of the alternating forward and reverse directions is the same, and the number of turns of the alternating forward and reverse directions is controlled;

[0029] The control method of the intelligent control module is that the more burrs there are on the port of the fixed bracket, the more turns the electric motor 31 rotates alternately in the forward and reverse directions. If the port of the fixed bracket has a large amount of burrs, the number of turns of the electric motor 31 will be increased, thereby increasing the downward moving distance of the grinding circle 371, thereby increasing the extrusion force on the port of the fixed bracket, increasing the grinding intensity of the fixed bracket, and improving the grinding quality. Otherwise, the number of turns of the electric motor 31 will be reduced to avoid excessive extrusion force that causes excessive force to grind the port of the fixed bracket and affects the dimensional accuracy, thereby protecting the quality of the fixed bracket.

[0030] The interior of the embedding mold 2 is provided with a blowing hole 21, and the blowing hole 21 is connected to the bottom pipe of the air pressure chamber 34;

[0031] The air pressure plate 341 slides downward along the inner wall of the air pressure chamber 34, and the gas under the air pressure plate 341 is squeezed into the blowing hole 21 through the pipe, and then ejected from the top of the blowing hole 21, blowing the impurities removed by grinding and polishing out of the fixed bracket, thereby ensuring the monitoring quality of the burr monitoring module and avoiding monitoring errors that lead to reduced grinding quality or even damage to the fixed bracket. If the fixed bracket is not polished clean in one time, multiple grindings can be performed through high-precision monitoring to ensure that the fixed bracket is fully polished clean.

[0032] A magnetic disk 372 is fixed to the outside of the connecting rod 37, a sleeve 38 is fixed to the inner wall of the grinding chamber 3, a sliding hole is provided in the middle of the sleeve 38, and an undulating rod 381 is slidably connected in the sliding hole, a sphere 382 is fixed to the upper left end of the undulating rod 381, the sphere 382 is magnetic, and the magnetic pole is opposite to the magnetic pole of the magnetic disk 372, an arc groove 373 is provided at the bottom of the magnetic disk 372, and the sphere 382 is rollingly connected to the inner wall of the arc groove 373;

[0033] When the connecting rod 37 moves downward, it drives the magnetic disk 372 downward. The magnetic disk 372 pulls the ball 382 through the magnetic attraction force. The ball 382 rolls in the arc groove 373 of the magnetic disk 372. The ball 382 drives the undulating rod 381 to slide downward along the sliding hole of the sleeve 38, so that the magnetic disk 372 is supported by the ball 382, ​​thereby improving the stability of the downward movement of the grinding circle 371, which can relatively further improve the grinding accuracy and grinding quality.

[0034] An elastic spring 39 is fixed to the right side of the inner wall of the grinding chamber 3, an extrusion ball 391 is fixed to the left end of the elastic spring 39, and a push-pull ball 331 is fixed to the right side of the gear rod 33. After the push-pull ball 331 moves downward, it squeezes the extrusion ball 391.

[0035] A limiting rod 383 is fixed to the front side of the undulating rod 381. After the elastic spring 39 is released, the squeezing ball 391 collides with the limiting rod 383.

[0036] When the port of the fixed bracket has a large amount of burrs, the electric motor 31 rotates more times, the grinding ring 371 exerts a greater extrusion force on the port of the fixed bracket, and the gear rod 33 moves downward more, thereby driving the push-pull ball

[0037] The downward movement distance of 331 is relatively large, and the push-pull ball 331 and the squeezing ball 391 squeeze and rub against each other. The squeezing ball 391 is subjected to force, and the elastic spring 39 is deformed. The push-pull ball 331 squeezes the squeezing ball 391, and the reaction force of the elastic spring 39 is reset, thereby driving the squeezing ball 391 to reset quickly. At the same time, since the undulating rod 381 moves downward synchronously, the limit rod 383 is driven to move downward. When the squeezing ball 391 is quickly reset, it hits the limit rod 383, and the limit rod 383 is subjected to an instantaneous upward force, thereby driving the ball 382 to quickly push the magnetic disk 372 upward through the undulating rod 381, thereby driving the grinding ring 371 to quickly move upward and away from the port of the fixed bracket, thereby protecting the fixed bracket from grinding and playing a role of emergency protection.

[0038] The upper part of the connecting chamber 36 is connected to the upper part of the air pressure chamber 34 through a hose. Two sliders are arranged on the left and right sides of the inner wall of the connecting chamber 36. Slide grooves are arranged on the left and right sides of the undulating plate 361. The sliders are slidably connected in the slide grooves.

[0039] The motor 35 rotates in a forward and reverse alternating manner, and the number of turns of the forward and reverse alternating rotation is three turns each;

[0040] Through the above steps, the connecting rod 37 moves upward quickly, driving the undulating plate 361 to slide upward along the inner wall of the connecting chamber 36, and the gas above the undulating plate 361 quickly enters the air pressure chamber 34 through the hose, and the air pressure plate 341 is instantly filled with gas to generate air pressure, and the air pressure pushes the air pressure plate 341 to move downward quickly, and the telescopic joint 342 is quickly stretched. Since the air pressure plate 341 is hit by the limit rod 383, it is pulled upward slightly by the gear rod 33, thereby ensuring that the air pressure plate 341 can continue to move downward smoothly, thereby ensuring that the air blow hole 21 blows out gas smoothly. At this time, there are more impurities polished out, and a large amount of air is blown out instantly to fully blow out the impurities polished out of the fixed bracket, further improving the monitoring accuracy of the polishing condition of the fixed bracket;

[0041] Furthermore, by setting the number of clockwise and counterclockwise rotations of the motor 35 to three, the grinding quality can be guaranteed, and the phenomenon of over-grinding can be further avoided. At the same time, the hose will not be broken, and the stability of grinding can be improved.

[0042] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0043] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A grinding and polishing device for the production of copper tube aluminum fin spiral condensers for household refrigerators, comprising a heat dissipation coil, a plurality of fixing brackets and a grinding and polishing machine, characterized in that: The plurality of fixing brackets are respectively sleeved on the outside of the heat dissipation coil and used to fix the heat dissipation coil; The grinding and polishing machine comprises a base (1), an embedded mold (2) and a grinding mechanism, wherein the grinding mechanism comprises a grinding chamber (3), an electric motor (31), a gear (32), a gear rod (33), an air pressure chamber (34), an air pressure plate (341), a telescopic joint (342), a motor (35), a connecting chamber (36), an undulating plate (361), a connecting rod (37) and a grinding ring (371); The embedded mold (2) and the grinding chamber (3) are both fixedly installed above the base (1); the electric motor (31) is fixedly installed on the inner wall of the grinding chamber (3); the gear (32) is fixedly connected to the output end of the electric motor (31); the air pressure chamber (34) is fixedly installed on the bottom of the inner wall of the grinding chamber (3); the air pressure plate (341) is slidably connected to the inner wall of the air pressure chamber (34); the telescopic joint (342) is fixedly installed above the air pressure plate (341); the upper end of the gear rod (33) is fixedly connected to the motor (35), and the lower end The gear rod (33) is fixedly connected to the upper end of the telescopic joint (342); a plurality of tooth blocks are arranged on the left side of the gear rod (33), and the tooth blocks are meshed with the gear (32); the connecting cavity (36) is fixedly connected to the output end of the motor (35); the undulating plate (361) is slidably connected to the inner wall of the connecting cavity (36) and is connected to the spring above the inner wall of the connecting cavity (36); the connecting rod (37) is fixedly installed below the undulating plate (361); the grinding ring (371) is fixedly installed at the lower end of the connecting rod (37) and is located above the embedded mold (2).

2. A grinding and polishing device for producing copper tube aluminum fin spiral condensers for household refrigerators according to claim 1, characterized in that: A burr monitoring module is provided inside the embedded mold (2), and an intelligent control module is provided inside the electric motor (31). The burr monitoring module is electrically connected to the intelligent control module. The burr monitoring module is used to monitor the burr amount of the port of the fixed bracket. The intelligent control module is used to control the electric motor (31) to rotate alternately in forward and reverse directions according to the burr amount of the port of the fixed bracket, and the number of turns of the alternating forward and reverse directions is the same, and the number of turns of the alternating forward and reverse directions is controlled.

3. A grinding and polishing device for producing copper tube aluminum fin spiral condensers for household refrigerators according to claim 2, characterized in that: The embedding mold (2) is provided with a blowing hole (21) inside, and the blowing hole (21) is connected to the bottom pipeline of the air pressure chamber (34).

4. A grinding and polishing device for producing copper tube aluminum fin spiral condensers for household refrigerators according to claim 3, characterized in that: A magnetic disk (372) is fixed on the outer side of the connecting rod (37), a sleeve (38) is fixed on the inner wall of the grinding chamber (3), a sliding hole is provided in the middle of the sleeve (38), and a rising and falling rod (381) is slidably connected in the sliding hole, a sphere (382) is fixed on the upper left end of the rising and falling rod (381), the sphere (382) is magnetic, and the magnetic pole is opposite to the magnetic pole of the magnetic disk (372), an arc groove (373) is provided at the bottom of the magnetic disk (372), and the sphere (382) is rollingly connected to the inner wall of the arc groove (373).

5. A grinding and polishing device for producing copper tube aluminum fin spiral condensers for household refrigerators according to claim 4, characterized in that: An elastic spring (39) is fixed on the right side of the inner wall of the grinding chamber (3), an extrusion ball (391) is fixed on the left end of the elastic spring (39), and a push-pull ball (331) is fixed on the right side of the gear rod (33), and the push-pull ball (331) is pressed against the extrusion ball (391) after moving downward; A limiting rod (383) is fixed on the front side of the undulating rod (381), and after the elastic spring (39) is released, the squeezing ball (391) collides with the limiting rod (383).

6. A grinding and polishing device for producing copper tube aluminum fin spiral condensers for household refrigerators according to claim 5, characterized in that: The upper part of the connecting chamber (36) is connected to the upper part of the air pressure chamber (34) via a hose, two sliders are provided on the left and right sides of the inner wall of the connecting chamber (36), and sliding grooves are provided on the left and right sides of the undulating plate (361), and the sliders are slidably connected in the sliding grooves.

7. A grinding and polishing device for producing copper tube aluminum fin spiral condensers for household refrigerators according to claim 6, characterized in that: The motor (35) operates in a forward and reverse alternating rotation mode, and the number of turns of the forward and reverse alternating rotation is three turns each.

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