Production method of aluminum alloy product for automobile air conditioner compressor

Abstract

The invention discloses a production method of an aluminum alloy product for an automobile air conditioner compressor, and relates to the technical field of automobile air conditioner compressor machining, a cast rod saw cutting device is used, and the cast rod saw cutting device comprises a supporting mechanism, a feeding mechanism, a cutting mechanism, a fixing mechanism and a length fixing mechanism. The supporting mechanism comprises a machining base and a dynamic supporting assembly for reducing scraping in the cast rod sawing process. The device has the advantages that through cooperation of the dynamic supporting assembly and the fixing assembly, the long casting rod is supported, the stability during moving and cutting is guaranteed, and the cutting quality is improved; through cooperation of a first roller and a second roller, the situation that the surface of the long casting rod is scratched is reduced, corresponding adjustment can be conducted according to the diameter of the long casting rod, and the practicability of the equipment is improved; through intermittent up-down movement of the fixed-length plate, the position of the long casting rod subjected to fixed-length movement is rechecked, and it is guaranteed that the length of each section of cut short casting rod is accurate; and the cleaning brush is used for cleaning finished short casting rods.

Description

Technical Field

[0001] The invention relates to the technical field of automobile air-conditioning compressor processing, and in particular to a production method of an aluminum alloy product for an automobile air-conditioning compressor. Background Art

[0002] As the main component of the rotary vane automobile air-conditioning compressor, the blade has an important impact on the working efficiency of the automobile air-conditioning compressor; the materials of the blades on the market are usually steel, plastic and aluminum alloy; steel blades are difficult to meet the requirements of lightweight and low noise in the compressor due to their high specific gravity, high noise and vibration during operation; plastic blades are also limited in their use due to their relatively low strength, easy aging and difficulty in recycling; aluminum alloy blades have comprehensive properties such as low specific gravity, high strength, easy plastic processing, and small thermal expansion coefficient (which is conducive to maintaining dimensional stability), so they have been widely used in rotary vane automobile air-conditioning compressors.

[0003] At present, the production method of aluminum alloy blades for automobile air-conditioning compressors mainly includes the steps of smelting and casting, homogenization treatment of cast bars, sawing of cast bars, preheating of cast bars, extrusion molding, solution heat treatment, straightening, artificial aging, stamping, etc. In the process of sawing of cast bars, firstly, the long cast bars are stably placed on the cutting platform, and fixed with a clamp or other fixing device to prevent movement or vibration during the cutting process, and the cutting operation is performed at a fixed position using a cutting device to process the long cast bars into short cast bars; however, when fixing the cast bars, in order to facilitate the advancement of the material, usually only the part at the cutting position is fixed, resulting in the stability of the rear part of the long cast bars to be improved, and it is not convenient to move along the accurate path when moving; secondly, when advancing the material, the long cast bars placed flat on the cutting table are pushed to move, and there is a scratch between the surface of the long cast bars and the cutting table. The long cast bars are long, resulting in a long scratching time, which will affect the quality of the short cast bars; the outer wall of the short cast bars after cutting will be attached with cutting debris. If the next cast bar preheating step is directly entered, the debris will melt on the surface of the short cast bars, affecting the quality of the finished product.

[0004] Therefore, in order to improve the support and stability of long cast rods and improve the quality of finished products, the present invention provides a method for producing aluminum alloy products for automobile air-conditioning compressors. Summary of the invention

[0005] The purpose of the present invention is to solve the problems existing in the prior art and to propose a production method of an aluminum alloy product for an automobile air-conditioning compressor.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A method for producing aluminum alloy products for automobile air-conditioning compressors uses a cast rod sawing device, including a supporting mechanism, a feeding mechanism, a cutting mechanism, a fixing mechanism and a fixed-length mechanism, and the supporting mechanism includes a processing seat and a dynamic supporting component for reducing scratches during the cast rod sawing process.

[0008] A dynamic support assembly is provided on the processing seat, and the dynamic support assembly includes a support seat, and a plurality of support seats are fixedly connected to the left and right corresponding top walls of the processing seat, the plurality of support seats on each side are arranged from front to back, and a plurality of rollers are connected to the support seat so as to rotate evenly from left to right.

[0009] The fixing mechanism includes a fixing assembly for supporting and fixing the cast rods during cutting and a driving assembly for driving the fixing assembly to operate; the fixing length mechanism includes a U-shaped frame, a matching piece, a telescopic rod, a fixing length plate for rechecking the cut length of the cast rods, and a cleaning brush for cleaning the surface of the short cast rods after cutting.

[0010] In the above-mentioned production method of aluminum alloy products for automobile air-conditioning compressors, the top wall of the processing seat is symmetrically installed with multiple electric push rods 1 in the front and back with the support seat on the right side as the center, and the top walls of the output ends of the multiple electric push rods 1 are commonly fixed with an adjustment seat that is slidably connected to the corresponding top wall of the support seat up and down, and the adjustment seat is rotatably connected with multiple rollers 2 corresponding to rollers 1 on the support seat on the right side, and rollers 1 and 2 are both composed of two front-to-back symmetrical cones connected.

[0011] In the above-mentioned production method of aluminum alloy products for automobile air-conditioning compressors, the feeding mechanism includes a slide rail, and a slide rail is opened in the middle of the processing seat, the slide rail is connected to a slide seat by an electric slider for sliding left and right, and the top wall of the slide seat is fixedly connected to a clamping plate group, the clamping plate group is composed of two clamping parts symmetrically distributed up and down, and rubber pads are installed on the outer walls of the sides where the two clamping parts are close to each other, and the two clamping parts are connected by two electric push rods symmetrically installed front and back, and the two electric push rods are double-headed electric push rods.

[0012] In the above-mentioned production method of aluminum alloy products for automobile air-conditioning compressors, the cutting mechanism includes a cutting groove, and the top wall of the processing seat is provided with a cutting groove located on the left side of the slide rail, and the top wall of the processing seat is symmetrically installed with hydraulic rods front and back with the cutting groove as the center, and the top walls of the two hydraulic rods are fixedly connected to a support frame 1, and a cutting piece is installed in the middle of the support frame 1.

[0013] In the above-mentioned production method of an aluminum alloy product for an automobile air-conditioning compressor, the driving assembly includes a spring rod 1, and the bottom wall of the support frame 1 is symmetrically installed with the spring rod 1, the bottom wall of the spring rod 1 is fixedly connected with the support frame 2, and the bottom wall of the processing seat is symmetrically fixed with a U-shaped blocking plate that is slidably sleeved on the outer wall of the support frame 2.

[0014] In the above-mentioned production method of aluminum alloy products for automobile air-conditioning compressors, the fixing assembly includes a return frame, and the top wall of the processing seat is fixed with a return frame symmetrically distributed left and right with the cutting groove as the center, the inner wall of the return frame is fixed with multiple fixed block groups from front to back, and the fixed block group is composed of multiple triangular prisms distributed in a matrix shape, and the return frame is connected to a traction frame for sliding up and down inside, and the traction frame is composed of a return frame that slides up and down inside the return frame and vertical rods symmetrically fixed to the bottom wall of the return frame front and back.

[0015] In the above-mentioned production method of aluminum alloy products for automobile air-conditioning compressors, the bottom wall of the vertical rod of the traction frame is fixedly connected to the corresponding second top wall of the support frame, and a group of multiple pushing parts is fixed to the upper inner wall of the return frame of the traction frame, and the group of pushing parts consists of two pushing blocks that are symmetrical front and back. A group of multiple pushing parts is fixed to the lower inner wall of the return frame of the traction frame, and the group of pushing parts consists of two pushing blocks that are symmetrical front and back.

[0016] In the above-mentioned production method of aluminum alloy products for automobile air-conditioning compressors, the adjacent side walls of multiple triangular prisms of the fixed block group are slidably connected with positioning plates through springs, and the top wall of the upper positioning plate is fixedly connected with a force-bearing member 1 that matches the first group of pushing members, and the bottom wall of the lower positioning plate is fixedly connected with a force-bearing member 2 that matches the second group of pushing members, the side of the first group of pushing members and the first force-bearing member is inclined, the side of the second group of pushing members and the second force-bearing member is a groove, and the second force-bearing member is a protrusion that matches the groove.

[0017] In the above-mentioned production method of aluminum alloy products for automobile air-conditioning compressors, the front and rear side walls of the processing seat are connected to a U-shaped frame by sliding up and down together through spring two, and a matching piece is provided in the middle of the bottom wall of the U-shaped frame. The matching piece consists of a fixed piece fixed to the middle of the bottom wall of the U-shaped frame and a sliding piece connected to the bottom wall of the processing seat by sliding left and right through spring three, and the sides of the matching piece where the fixed piece and the sliding piece are close to each other are both inclined.

[0018] In the above-mentioned production method of aluminum alloy products for automobile air-conditioning compressors, the left side wall of the sliding seat is fixedly connected with a telescopic rod, and the side walls adjacent to the two vertical sections of the U-shaped frame are connected with a fixed-length plate in the shape of an inverted convex letter through an electric slider for sliding left and right, and a plurality of cleaning brushes are evenly installed on the upper part of the fixed-length plate from front to back, and a plurality of avoidance grooves distributed from left to right are provided on the top wall of the processing seat and are arranged on the left side of the cutting groove, and the lower part of the fixed-length plate is slidably connected to the avoidance groove up and down.

[0019] The specific processing method for processing aluminum alloy products for automobile air-conditioning compressors using the above-mentioned cast rod sawing device includes the following steps:

[0020] S1. Melting and casting: Add the required alloy raw materials into the melting furnace according to the required mass percentage, heat up and melt, wait until the alloys in the melting furnace are completely melted, stir the melt and skim the slag, then add a certain amount of Sr modifier into the melt, perform modification and refinement treatment, and obtain cast rods.

[0021] S2. Cast rod homogenization treatment: The cast rods obtained by casting in the smelting furnace are subjected to homogenization heat treatment and then air-cooled to room temperature.

[0022] S3. Cast rod sawing: sawing the longer cast rods after heat treatment into short cast rods.

[0023] S4. Preheating of cast rods: Heat the short cast rods to a suitable temperature for preheating treatment.

[0024] S5. Extrusion molding: The preheated short cast rod is subjected to hot extrusion molding operation to obtain an aluminum alloy blade blank.

[0025] S6. Solution heat treatment: The aluminum alloy blade blank after hot extrusion is subjected to solution heat treatment, and after the solution heat treatment is completed, it is quenched and water-cooled to room temperature.

[0026] S7, straightening: the aluminum alloy blade blank after solution heat treatment is stretched and straightened.

[0027] S8. Artificial aging: The straightened aluminum alloy blade blank is subjected to artificial aging heat treatment, and then air-cooled to room temperature.

[0028] S9, stamping: stamping the aluminum alloy blade blank after artificial aging, and the required aluminum alloy blade finished product can be obtained after stamping.

[0029] Compared with the prior art, the present invention has the following advantages:

[0030] 1. The dynamic support component and the fixed component cooperate to support the long cast rod, ensure the stability during movement and cutting, and improve the cutting quality; multiple positioning plates fix a long cast rod from multiple directions, and the left and right sides of multiple cutting positions are fixed; Roller 2 and Roller 1 play a dynamic limit role for the long cast rod, and the two truncated table parts of Roller 2 and Roller 1 support from four directions respectively to maintain the stability of the long cast rod when moving.

[0031] 2. By cooperating with roller one and roller two, the scratches on the surface of the long cast rod can be reduced. It can also be adjusted accordingly according to the diameter of the long cast rod to increase the practicality of the equipment; roller one is used to reduce the friction when the long cast rod moves; the height of roller two is adjusted to adjust the clamping range between roller one and roller two.

[0032] 3. By intermittently moving the fixed-length plate up and down, the position of the long cast rod after the fixed-length movement is checked to ensure the accuracy of the length of each short cast rod cut; and the cleaning brush scrapes and peels off the debris adhered to the outer wall of the cut short cast rod to achieve the cleaning operation of the finished short cast rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein:

[0034] Figure 1 A schematic diagram of the workflow.

[0035] Figure 2 A schematic diagram of the overall structure.

[0036] Figure 3 A schematic diagram of the structure of the support mechanism.

[0037] Figure 4 A partial schematic diagram of a dynamic support assembly.

[0038] Figure 5 It is a structural diagram of the feeding mechanism.

[0039] Figure 6 It is a structural diagram of the cutting mechanism.

[0040] Figure 7 A schematic diagram of the partial structure of the drive component.

[0041] Figure 8 for Figure 7 Schematic diagram of the structure at A in the middle.

[0042] Fig. 9 It is a partial structural diagram of the fixed-length mechanism.

[0043] In the figure: 1. Support mechanism; 11. Processing seat; 12. Dynamic support assembly; 121. Support seat; 122. Roller 1; 123. Electric push rod 1; 124. Adjustment seat; 125. Roller 2; 2. Feed mechanism; 21. Slide rail; 22. Slide seat; 23. Clamping plate group; 24. Electric push rod 2; 3. Cutting mechanism; 31. Hydraulic rod; 32. Support frame 1; 33. Cutting piece; 34. Cutting groove; 4. Fixing mechanism; 41. Driving assembly; 411. Spring rod one; 412. Support frame two; 413. Blocking plate; 414. Traction frame; 415. Pushing member group one; 416. Pushing member group two; 42. Fixing assembly; 421. Return frame; 422. Fixing block group; 423. Force-bearing member one; 424. Force-bearing member two; 425. Positioning plate; 5. Fixed-length mechanism; 51. U-shaped frame; 52. Matching member; 53. Telescopic rod; 54. Fixed-length plate; 55. Cleaning brush; 56. Avoidance groove. DETAILED DESCRIPTION

[0044] 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.

[0045] Reference Figure 1 and Figure 2 A method for producing aluminum alloy products for automobile air-conditioning compressors uses a cast rod sawing device, including a supporting mechanism 1, a feeding mechanism 2, a cutting mechanism 3, a fixing mechanism 4 and a fixed length mechanism 5.

[0046] Reference Figures 2 to 4 The support mechanism 1 includes a processing seat 11 and a dynamic support component 12 for reducing scratches during the sawing process of cast rods. The dynamic support component 12 is arranged on the processing seat 11, and the dynamic support component 12 includes a support seat 121. A plurality of support seats 121 are fixedly connected to the top wall of the processing seat 11 correspondingly on the left and right sides. The plurality of support seats 121 on each side are arranged and distributed from front to back, and a plurality of rollers 122 are connected to the support seat 121 and are evenly rotatably connected from left to right; a plurality of electric push rods 123 are symmetrically installed on the top wall of the processing seat 11 front and back with the support seat 121 on the right side as the center, and an adjustment seat 124 is fixed on the top wall of the output end of the plurality of electric push rods 123, which is slidably connected to the corresponding top wall of the support seat 121 up and down, and a plurality of rollers 125 corresponding to the rollers 1 122 on the right side of the support seat 121 are rotatably connected on the adjustment seat 124, and the rollers 1 122 and the rollers 125 are both composed of two symmetrical frustums connected front and back.

[0047] Place multiple long cast rods from right to left on roller 122 on the right part of the processing seat 11, push the long cast rods to move to the left, and roller 122 rotates on the support seat 121 accordingly, so as to reduce the friction force when the long cast rods move, and reduce the occurrence of scratches on the surface of the long cast rods; in the process of the long cast rods moving to the left, they gradually approach the cutting position, and the left end and the middle part of the long cast rods move between roller 2 125 and the corresponding roller 122 below, and roller 2 125 and roller 1 122 play a role of dynamic limiting for the long cast rods, and the two truncated cones of roller 2 125 and roller 1 122 respectively support the long cast rods from four directions, so as to maintain the stability of the long cast rods when moving.

[0048] The top wall of the output end of the electric push rod 123 can drive the adjustment seat 124 to slide up and down on the corresponding top wall of the support seat 121, so as to adjust the height of the roller 125, and then adjust the clamping range between the roller 122 and the roller 125, so as to facilitate corresponding adjustment according to the diameter of the long casting rod, thereby increasing the practicality of the equipment.

[0049] Reference Figure 2 , Figure 3 and Figure 5 The feeding mechanism 2 includes a slide rail 21. The middle part of the processing seat 11 is provided with the slide rail 21. The slide rail 21 is connected to a slide seat 22 for sliding left and right through an electric slider. The top wall of the slide seat 22 is fixedly connected to a clamping plate group 23. The clamping plate group 23 consists of two clamping members symmetrically distributed up and down. Rubber pads are installed on the outer walls of the sides where the two clamping members are close to each other. The two clamping members are connected by an electric push rod 24 symmetrically installed front and back. The electric push rod 24 is a double-headed electric push rod.

[0050] The long cast rod moves to the slide rail 21, and the upper and lower output ends of the electric push rod 24 contract to drive the two clamping parts of the clamping plate group 23 to approach each other. The rubber pad increases the friction, and then the upper and lower walls of the long cast rod are clamped by the two clamping parts of the clamping plate group 23. The slide seat 22 drives the clamping plate group 23 to move a fixed length on the slide rail 21, which is convenient for the long cast rod to be fed to the left for cutting and loading.

[0051] Reference Figure 2 , Figure 3 and Figure 6 The cutting mechanism 3 includes a cutting groove 34. The top wall of the processing seat 11 is provided with a cutting groove 34 located on the left side of the slide rail 21. The top wall of the processing seat 11 is symmetrically installed with hydraulic rods 31 front and back with the cutting groove 34 as the center. The top walls of the two hydraulic rods 31 are fixedly connected with a support frame 32, and a cutting piece 33 is installed in the middle of the support frame 32.

[0052] When the long cast rod is fed to a specified length, the top wall of the output end of the hydraulic rod 31 moves downward, driving the support frame 32 and the cutting member 33 to move downward, and the rotating cutting blade on the cutting member 33 moves downward into the cutting groove 34 to cut the long cast rod.

[0053] Reference Figure 2 , Figure 6 and Figure 7 The fixing mechanism 4 includes a fixing assembly 42 for supporting and fixing the cast rod during cutting and a driving assembly 41 for driving the fixing assembly 42 to operate; the driving assembly 41 includes a spring rod 411, and the bottom wall of the support frame 32 is symmetrically installed with the spring rod 411, and the bottom wall of the spring rod 411 is fixedly connected with the support frame 2 412, and the bottom wall of the processing seat 11 is symmetrically fixed with a U-shaped blocking plate 413 that is slidably sleeved on the outer wall of the support frame 2 412.

[0054] Reference Figure 6 , Figure 7 and Figure 8The fixing assembly 42 includes a return frame 421, and a return frame 421 symmetrically distributed with the cutting groove 34 as the center is fixed on the top wall of the processing seat 11. A plurality of fixed block groups 422 are fixed on the inner wall of the return frame 421 from front to back, and the fixed block group 422 is composed of a plurality of triangular prisms distributed in a matrix shape. A traction frame 414 is connected to the return frame 421 for sliding up and down. The traction frame 414 is composed of a return frame that slides up and down inside the return frame 421 and a vertical rod symmetrically fixed to the bottom wall of the return frame front and back; the bottom wall of the vertical rod of the traction frame 414 is fixedly connected to the corresponding top wall of the supporting frame 2 412, and a plurality of pushing members 415 are fixed to the upper inner wall of the return frame of the traction frame 414. The pushing members 415 are composed of two pushing blocks 1 that are symmetrical front and back. A plurality of pushing members 416 are fixed to the lower inner wall of the return frame of the traction frame 414. The pushing members 416 are composed of two pushing blocks 2 that are symmetrical front and back.

[0055] Reference Figure 6 , Figure 7 and Figure 8 The adjacent side walls of the multiple triangular prisms of the fixed block group 422 are slidably connected with the positioning plate 425 through a spring 1 (not shown in the figure), the top wall of the upper positioning plate 425 is fixedly connected with a force-bearing piece 1 423 adapted to the first pushing piece group 415, and the bottom wall of the lower positioning plate 425 is fixedly connected with a force-bearing piece 2 424 adapted to the second pushing piece group 416. The side where the first pushing piece group 415 and the force-bearing piece 1 423 are adjacent is inclined, and the side where the second pushing piece group 416 and the force-bearing piece 2 424 are adjacent is a groove, and the force-bearing piece 2 424 is a protrusion matching the groove.

[0056] Reference Figure 2 , Figure 3 and Fig. 9 The length-fixing mechanism 5 includes a U-shaped frame 51, a matching piece 52, a telescopic rod 53, a length-fixing plate 54 for rechecking the cut length of the cast rod, and a cleaning brush 55 for cleaning the surface of the short cast rod after cutting; the front and rear side walls of the processing seat 11 are connected to the U-shaped frame 51 by a spring 2 (not shown in the figure) for sliding up and down, and a matching piece 52 is provided in the middle of the bottom wall of the U-shaped frame 51. The matching piece 52 is composed of a fixing piece fixed to the middle of the bottom wall of the U-shaped frame 51 and a sliding piece connected to the bottom wall of the processing seat 11 by a spring 3 (not shown in the figure) for sliding left and right. The U-shaped frame 51 is composed of a pair of fixed and sliding members, the sides of the fitting 52 where the fixed member and the sliding member are close to each other are both inclined; a telescopic rod 53 is fixedly connected to the left side wall of the slide seat 22; the side walls of the two vertical sections of the U-shaped frame 51 that are close to each other are connected to a fixed-length plate 54 in the shape of an inverted convex letter through an electric slider for sliding left and right; a plurality of cleaning brushes 55 are evenly installed on the upper part of the fixed-length plate 54 from front to back; a plurality of avoidance grooves 56 distributed from left to right and arranged on the left side of the cutting groove 34 are provided on the top wall of the processing seat 11; the fixed-length plate 54 is connected to the avoidance groove 56 by sliding up and down at the lower part.

[0057] When the long cast rod is fed to the specified length, the fixed length plate 54 moves to the left to the corresponding specified length on the U-shaped frame 51 through the electric slider, and the telescopic rod 53 is adjusted to the corresponding length. When the long cast rod is fed, the slide 22 pushes the telescopic rod 53 to gradually approach the matching piece 52. The fed long cast rod part pushes the short cast rod whose left end has been cut to move to the left and pass through the corresponding cleaning brush 55. As the short cast rod moves, the cleaning brush 55 scrapes and peels off the debris adhered to the outer wall of the cut short cast rod to achieve the cleaning operation of the finished short cast rod.

[0058] Until the long cast rod is fed to the cutting position, the end of the telescopic rod 53 pushes the sliding part of the matching part 52 to slide to the left at the bottom of the U-shaped frame 51, and the sliding part of the matching part 52 pushes the fixing part of the matching part 52 to slide relatively upward, driving the fixed-length plate 54 to slide upward on the avoidance groove 56. The left end of the long cast rod should be close to the lower part of the right wall of the fixed-length plate 54. The fixed-length plate 54 is used to limit the position of the long cast rod after the fixed-length movement to ensure the accuracy of the length of each short cast rod cut.

[0059] When support frame 1 32 moves downward, spring rod 1 411 is driven to move downward, and spring rod 1 411 pushes support frame 2 412 and traction frame 414 to move downward. Support frame 2 412 moves downward between blocking plate 413 and the bottom wall of processing seat 11 until blocking plate 413 blocks support frame 2 412 from moving further downward, and the telescopic end of spring rod 1 411 contracts into the fixed end to adapt to the movement of spring rod 1 411.

[0060] The traction frame 414 moves downward to drive the first pushing member 415 and the second pushing member 416 to move downward, the first pushing member 415 and the second pushing member 416 push synchronously, the force-bearing member 1 423 and the force-bearing member 2 424 move, and the positioning plate 425 moves synchronously toward the corresponding long cast rod side wall. Multiple positioning plates 425 fix a long cast rod from multiple directions, and the left and right sides of multiple cutting positions are fixed to ensure stability during cutting and a smooth cutting surface.

[0061] When the cutting is completed, the support frame 32 is reset, the support frame 412 drives the traction frame 414, the pushing member group 1 415, and the pushing member group 2 416 to reset, the positioning plate 425 releases the fixation of the long cast rod, and the two output ends of the electric push rod 24 drive the clamping plate group 23 to release the clamping of the long cast rod, and the slide 22 drives the clamping plate group 23 to reset. After resetting, the electric push rod 24 continues to drive the clamping plate group 23 to clamp the long cast rod and push the next section, and continuous operation is performed in this cycle.

[0062] See also Figure 1 The specific processing method for processing aluminum alloy products for automobile air-conditioning compressors using the above-mentioned cast rod sawing device includes the following steps:

[0063] S1. Melting and casting: Add the required alloy raw materials into the melting furnace according to the required mass percentage, heat up and melt, wait until the alloys in the melting furnace are completely melted, stir the melt and skim the slag, then add a certain amount of Sr modifier into the melt, perform modification and refinement treatment, and obtain cast rods.

[0064] S2. Cast rod homogenization treatment: The cast rods obtained by casting in the smelting furnace are subjected to homogenization heat treatment and then air-cooled to room temperature.

[0065] S3. Cast rod sawing: sawing the longer cast rods after heat treatment into short cast rods.

[0066] S4. Preheating of cast rods: Heat the short cast rods to a suitable temperature for preheating treatment.

[0067] S5. Extrusion molding: The preheated short cast rod is subjected to hot extrusion molding operation to obtain an aluminum alloy blade blank.

[0068] S6. Solution heat treatment: The aluminum alloy blade blank after hot extrusion is subjected to solution heat treatment, and after the solution heat treatment is completed, it is quenched and water-cooled to room temperature.

[0069] S7, straightening: the aluminum alloy blade blank after solution heat treatment is stretched and straightened.

[0070] S8. Artificial aging: The straightened aluminum alloy blade blank is subjected to artificial aging heat treatment, and then air-cooled to room temperature.

[0071] S9, stamping: stamping the aluminum alloy blade blank after artificial aging, and the required aluminum alloy blade finished product can be obtained after stamping.

[0072] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A method for producing aluminum alloy products for automobile air-conditioning compressors, which uses a cast rod sawing device, characterized in that: The invention comprises a support mechanism (1), a feeding mechanism (2), a cutting mechanism (3), a fixing mechanism (4) and a length fixing mechanism (5), wherein the support mechanism (1) comprises a processing seat (11) and a dynamic support component (12) for reducing scratches during the sawing process of the cast rod; The processing seat (11) is provided with a dynamic support assembly (12), the dynamic support assembly (12) comprising a support seat (121), and a plurality of support seats (121) are fixedly connected to the top wall of the processing seat (11) on the left and right sides, respectively, the plurality of support seats (121) on each side are arranged from front to back, and a plurality of rollers (122) are connected to the support seat (121) so as to rotate evenly from left to right; The fixing mechanism (4) comprises a fixing assembly (42) for supporting and fixing the cast rod during cutting and a driving assembly (41) for driving the fixing assembly (42) to operate; The length fixing mechanism (5) comprises a U-shaped frame (51), a matching piece (52), a telescopic rod (53), a length fixing plate (54) for rechecking the cut length of the cast rod, and a cleaning brush (55) for cleaning the surface of the cut short cast rod; The specific processing method for processing aluminum alloy products for automobile air-conditioning compressors using the above-mentioned cast rod sawing device includes the following steps: S1. Melting and casting: adding the required alloy raw materials into a melting furnace according to the required mass percentage, heating and melting, and after the alloys in the melting furnace are completely melted, stirring the melt and slagging, adding a certain amount of Sr modifier into the melt, performing a modification and refinement treatment, and obtaining a cast rod; S2. Cast rod homogenization treatment: The cast rods obtained by casting in the smelting furnace are subjected to homogenization heat treatment and then air-cooled to room temperature; S3, cast rod sawing: sawing the longer cast rods after heat treatment into short cast rods; S4, preheating of cast bars: heating the short cast bars to a suitable temperature for preheating treatment; S5, extrusion molding: hot extrusion molding the preheated short cast rod to obtain an aluminum alloy blade blank; S6, solution heat treatment: subjecting the hot-extruded aluminum alloy blade blank to solution heat treatment, and quenching and water cooling to room temperature after the solution heat treatment; S7, straightening: stretching and straightening the aluminum alloy blade blank after solution heat treatment; S8, artificial aging: subjecting the straightened aluminum alloy blade blank to artificial aging heat treatment, and then air cooling to room temperature after completion; S9, stamping: stamping the aluminum alloy blade blank after artificial aging, and the required aluminum alloy blade finished product can be obtained after stamping.

2. The method for producing an aluminum alloy product for an automobile air-conditioning compressor according to claim 1, characterized in that: The top wall of the processing seat (11) is symmetrically mounted with a plurality of electric push rods (123) in a front-to-back manner with the right support seat (121) as the center, and an adjustment seat (124) is fixed to the top wall of the output ends of the plurality of electric push rods (123) and is slidably connected to the top wall of the corresponding support seat (121) in an up-and-down manner. The adjustment seat (124) is rotatably connected with a plurality of rollers (125) corresponding to the rollers (122) on the right support seat (121), and the rollers (122) and (125) are both composed of two symmetrical frustums connected in a front-to-back manner.

3. The method for producing an aluminum alloy product for an automobile air-conditioning compressor according to claim 1, characterized in that: The feeding mechanism (2) comprises a slide rail (21), and a slide rail (21) is provided in the middle of the processing seat (11), and a slide seat (22) is slidably connected to the slide rail (21) by an electric slider, and a clamping plate group (23) is fixedly connected to the top wall of the slide seat (22), and the clamping plate group (23) is composed of two clamping members symmetrically distributed up and down, and the outer walls of the sides where the two clamping members are close to each other are both installed with rubber pads, and the two clamping members are connected by an electric push rod 2 (24) symmetrically installed front and back, and the electric push rod 2 (24) is a double-headed electric push rod.

4. The method for producing an aluminum alloy product for an automobile air-conditioning compressor according to claim 1, characterized in that: The cutting mechanism (3) comprises a cutting groove (34), and the top wall of the processing seat (11) is provided with a cutting groove (34) located on the left side of the slide rail (21), and the top wall of the processing seat (11) is symmetrically mounted with hydraulic rods (31) front and back with the cutting groove (34) as the center, and the top walls of the two hydraulic rods (31) are fixedly connected to a support frame (32), and a cutting piece (33) is mounted in the middle of the support frame (32).

5. The method for producing an aluminum alloy product for an automobile air-conditioning compressor according to claim 4, characterized in that: The driving assembly (41) comprises a spring rod 1 (411), and the bottom wall of the support frame 1 (32) is symmetrically mounted with the spring rod 1 (411) in the front and rear directions, the bottom wall of the spring rod 1 (411) is fixedly connected with the support frame 2 (412), and the bottom wall of the processing seat (11) is symmetrically fixed with a U-shaped blocking plate (413) which is slidably sleeved on the outer wall of the support frame 2 (412) in the front and rear directions.

6. The method for producing an aluminum alloy product for an automobile air-conditioning compressor according to claim 4, characterized in that: The fixing assembly (42) comprises a return frame (421), and the top wall of the processing seat (11) is fixed with a return frame (421) symmetrically distributed with the cutting groove (34) as the center, and the inner wall of the return frame (421) is fixed with a plurality of fixed block groups (422) from front to back, and the fixed block groups (422) are composed of a plurality of triangular prisms distributed in a matrix shape, and the return frame (421) is slidably connected with a traction frame (414) inside, and the traction frame (414) is composed of a return frame that slides up and down inside the return frame (421) and a vertical rod symmetrically fixed to the bottom wall of the return frame.

7. The method for producing an aluminum alloy product for an automobile air-conditioning compressor according to claim 6, characterized in that: The bottom wall of the vertical rod of the traction frame (414) is fixedly connected to the top wall of the corresponding supporting frame 2 (412); a plurality of pushing members (415) are fixed to the upper inner wall of the return frame of the traction frame (414); and the pushing members (415) are composed of two front-to-back symmetrical pushing blocks 1; a plurality of pushing members (416) are fixed to the lower inner wall of the return frame of the traction frame (414); and the pushing members (416) are composed of two front-to-back symmetrical pushing blocks 2.

8. The method for producing an aluminum alloy product for an automobile air-conditioning compressor according to claim 7, characterized in that: The adjacent side walls of the plurality of triangular prisms of the fixed block group (422) are all slidably connected to the positioning plate (425) via a spring, and the top wall of the upper positioning plate (425) is fixedly connected to a force-bearing piece (423) matched with the first group of pushing pieces (415), and the bottom wall of the lower positioning plate (425) is fixedly connected to a force-bearing piece (424) matched with the second group of pushing pieces (416). The adjacent sides of the first group of pushing pieces (415) and the force-bearing piece (423) are both inclined, and the adjacent sides of the second group of pushing pieces (416) and the force-bearing piece (424) are grooves, and the force-bearing piece (424) is a protrusion matching the groove.

9. The method for producing an aluminum alloy product for an automobile air-conditioning compressor according to claim 3, characterized in that: The front and rear side walls of the processing seat (11) are connected to a U-shaped frame (51) by sliding upward and downward together through a second spring, and a matching piece (52) is provided in the middle of the bottom wall of the U-shaped frame (51), and the matching piece (52) is composed of a fixed piece fixed to the middle of the bottom wall of the U-shaped frame (51) and a sliding piece connected to the bottom wall of the processing seat (11) by sliding left and right through a third spring, and the sides of the matching piece (52) where the fixed piece and the sliding piece are close to each other are both inclined.

10. The method for producing an aluminum alloy product for an automobile air-conditioning compressor according to claim 9, characterized in that: A telescopic rod (53) is fixedly connected to the left side wall of the slide seat (22); two adjacent vertical sections of the U-shaped frame (51) are slidably connected to a fixed-length plate (54) in the shape of an inverted convex letter through an electric slider; a plurality of cleaning brushes (55) are evenly installed on the upper part of the fixed-length plate (54) from front to back; a plurality of avoidance grooves (56) distributed from left to right and arranged on the left side of the cutting groove (34) are formed on the top wall of the processing seat (11); and the lower part of the fixed-length plate (54) is slidably connected to the avoidance groove (56) up and down.

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