Arc surface machining equipment for refrigeration valve plate

Abstract

The arc surface machining equipment for the refrigeration valve plate relates to the technical field of machining and comprises a rack, a first lifting driving device is installed at the inner top end of the rack, a lifting seat is fixed to the output end of the bottom of the first lifting driving device, and a movable disc is rotationally installed at the center of the bottom end of the lifting seat; a first reversing assembly is installed between the lifting base and the movable disc to drive the movable disc to alternately rotate forwards and backwards, second driving motors with the number consistent with that of arc-shaped grooves in the refrigeration valve plate are arranged on the movable disc, the second driving motors are evenly distributed on the movable disc and fixed to the movable disc, and the output end of the movable disc penetrates through the movable disc. And a polishing roller is coaxially fixed. The first reversing assembly drives the movable disc to alternately rotate forwards and backwards, the movable disc which alternately rotates forwards and backwards drives the grinding roller to reciprocate along the track of the arc-shaped groove of the refrigeration valve plate, meanwhile, the second driving motor is matched to drive the grinding roller to rotate, one-time comprehensive grinding of the arc-shaped groove is achieved, and the grinding efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, and in particular to an arc surface processing device for a refrigeration valve sheet. Background Art

[0002] The compressor valve plate is the part that is most subject to impact in the compressor. The quality and accuracy of the compressor valve plate directly affect the life and refrigeration effect of the compressor. The compressor valve plate is a circular sheet structure with a circular hole in the middle of the compressor valve plate and multiple groups of arc grooves symmetrically arranged on the outer side of the compressor valve plate. After the compressor valve plate is produced, its surface and the arc grooves need to be polished.

[0003] For example, the patent publication number CN110744391B provides a compressor valve plate manufacturing finishing machine, including a base plate, a rotating motor, a placement platform, a support mechanism, a grinding support plate, a grinding mechanism, a hydraulic cylinder and an external support frame, the top of the base plate is equipped with a rotating motor through a motor sleeve, the output shaft of the rotating motor is equipped with a placement platform, the placement platform is symmetrically provided with waist-shaped grooves, each waist-shaped groove on the placement platform is equipped with a support mechanism, the grinding support plate is connected with a grinding mechanism, the upper end of the grinding support plate is connected to the middle lower end surface of the external support frame through a hydraulic cylinder, and the lower side of the outer end of the external support frame is installed on the outer end top of the base plate. This patent can perform horizontal and vertical matching grinding on the side wall of the arc groove on the compressor valve plate, increase the grinding effect of the side wall of the arc groove on the valve plate, and can also grind the outer end of the arc groove on the valve plate through a spherical grinding block, so that the valve plate can be fully polished.

[0004] However, based on the above search and in combination with the prior art, it is found that the compressor valve plate manufacturing finishing equipment similar to the above disclosure in the prior art needs to process and polish the arc groove on the valve plate at different parts in two steps, resulting in low processing efficiency, and during the polishing process, the driving motor frequently switches between forward and reverse driving, which easily causes motor overheating failure. Therefore, a circular arc surface processing equipment for refrigeration valve plates is proposed to improve the above problems. Summary of the invention

[0005] The purpose of the present application is to provide an arc surface processing device for a refrigeration valve sheet to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a circular arc surface processing device for a refrigeration valve sheet, comprising a frame, a support seat is fixed at the center of the inner bottom end of the frame, a lifting drive device 1 is installed at the inner top end of the frame, a lifting seat is fixed at the bottom output end of the lifting drive device 1, a movable disk is rotatably installed at the center of the bottom end of the lifting seat, and a pressing seat is rotatably installed at the center of the bottom end of the movable disk;

[0007] A first reversing assembly is installed between the lifting seat and the movable disk to drive the movable disk to rotate alternately forward and reverse;

[0008] The movable disk is provided with two drive motors whose number is consistent with the arc grooves on the refrigeration valve plate. The drive motors are evenly distributed on the movable disk and fixed to the movable disk. The output end of the movable disk passes through the movable disk and is coaxially fixed with a grinding roller.

[0009] As a further supplement to this solution, the first reversing assembly includes a drive motor 1, a reciprocating screw, a transmission tooth plate and a transmission gear ring;

[0010] The driving motor 1 is installed at the bottom end of the lifting seat, the reciprocating screw is coaxially fixed with the output shaft of the driving motor 1, the transmission gear plate is horizontally slidably installed at the bottom end of the lifting seat, the reciprocating screw thread penetrates the transmission gear plate, the transmission gear ring is vertically rotated and installed at the center of the bottom end of the lifting seat, and meshes with the transmission gear plate.

[0011] As a further supplement to the present solution, grinding blocks are horizontally slidably mounted on the vertical circumference of the grinding roller, and a compression spring is horizontally mounted between the grinding block and the grinding roller.

[0012] As a further supplement to the present solution, an adjustment component is installed between the grinding block and the grinding roller to adjust the sliding range of the grinding block on the inner side of the grinding roller.

[0013] As a further supplement to the present solution, the adjustment assembly includes an adjustment block, a tension spring, a limit wedge block 1, a limit wedge block 2 and a lifting drive device 2;

[0014] The number of the adjusting block, the tension spring and the limiting wedge block 1 is consistent with the number of the grinding blocks, and one adjusting block, the tension spring and the limiting wedge block 1 corresponds to one grinding block, the adjusting block is horizontally slidably installed on the inner side of the grinding roller, the compression spring is horizontally fixed between the adjusting block and the grinding block, the tension spring is horizontally fixed between the adjusting block and the grinding roller, and the limiting wedge block 1 is fixed to the side of the adjusting block away from the grinding block;

[0015] The second lifting drive device is vertically installed on the inner side of the grinding roller, and the second limiting wedge block is vertically slidably installed on the inner side of the grinding roller and simultaneously abuts against the inclined surfaces of the plurality of limiting wedge blocks.

[0016] As a further supplement to the present solution, a portion of the bottom of the grinding roller located outside the grinding roller is provided with a chamfer.

[0017] As a further supplement to this solution, a second reversing assembly is provided between the lifting seat and the movable disk. When the driving motor 1 drives the movable disk to alternately rotate forward and reverse through the first reversing assembly, the movable disk alternately moves up and down under the action of the second reversing assembly.

[0018] As a further supplement to this solution, the second reversing assembly includes a fixing ring 1, a limiting slide groove, a fixing ring 2 and a limiting pulley;

[0019] The fixed ring 1 is installed at the lower end of the lifting seat and is coaxially arranged with the lifting seat. The limiting slide groove is arranged on the outer surface of the fixed ring 1, and the limiting slide groove is in a wave shape. The fixed ring 2 is installed at the upper end of the movable disk and is coaxially arranged with the movable disk. The limiting pulley is rotatably installed on the inner surface of the fixed ring 2, and the limiting pulley is rollingly adapted to the inner side of the limiting slide groove.

[0020] As a further supplement to the present solution, a limit slider is coaxially fixed to the lower end of the transmission gear ring, a limit sleeve is fixed at the center of the upper end of the movable disk, and the limit sleeve is vertically slidably sleeved on the outer side of the limit slider.

[0021] As a further supplement to this solution, the horizontal cross-section of the limit slider is non-circular.

[0022] In summary, the technical effects and advantages of the present invention are as follows:

[0023] 1. In the present invention, the movable disk is driven to rotate alternately forward and reversely through the first reversing component. The alternately forward and reverse rotating movable disk carries the grinding roller to reciprocate along the arc groove track of the refrigeration valve plate. At the same time, the second driving motor drives the grinding roller to rotate, so as to realize one-time comprehensive grinding of the arc groove, and the grinding efficiency is high.

[0024] 2. In the present invention, by coordinating the adjustment block, the tension spring, the limit wedge block 1, the limit wedge block 2 and the lifting drive device 2, the lifting drive device 2 can be used to drive the limit wedge block 2 to slide in the vertical direction, so that the limit wedge block 2 moves horizontally outward against the limit wedge block 1, and then the grinding roller moves outward as a whole, expanding its grinding diameter, which is suitable for grinding the arc surface of refrigeration valve plates with larger arc groove sizes.

[0025] 3. In the present invention, through the coordinated arrangement of fixed ring 1, limiting groove, fixed ring 2 and limiting pulley, while the movable disk carries the grinding roller to rotate alternately forward and reverse along the movable disk, the fixed ring 2 carries the limiting pulley to move along the limiting groove on the fixed ring 1. Since the limiting groove is in a wave shape, the limiting pulley carries the fixed ring 2 and the movable disk to move in a wave-like manner alternately up and down, so that the grinding roller moves up and down on the inner side of the arc groove of the refrigeration valve plate, avoiding the grinding position of the grinding roller to be fixed when grinding the arc groove, thereby avoiding local wear of the grinding roller and extending the service life of the grinding roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 Schematic diagram of the overall three-dimensional structure of this embodiment;

[0028] Figure 2 It is a structural schematic diagram of the lifting seat in this embodiment;

[0029] Figure 3 This is a schematic diagram of the structure of the top of the movable disk in this embodiment;

[0030] Figure 4 is a schematic structural diagram of the bottom of the movable disk in this embodiment;

[0031] Figure 5 It is a schematic diagram of the cross-section structure of the grinding roller in this embodiment.

[0032] In the figure: 1. frame; 2. lifting drive device 1; 3. support seat; 4. lifting seat; 5. driving motor 1; 6. reciprocating screw; 7. transmission gear plate; 8. transmission gear ring; 9. limiting slider; 10. movable plate; 11. limiting sliding sleeve; 12. driving motor 2; 13. grinding roller; 14. clamping seat; 15. grinding block; 16. compression spring; 17. adjusting block; 18. tension spring; 19. limiting wedge block 1; 20. limiting wedge block 2; 21. lifting drive device 2; 22. fixing ring 1; 23. limiting slide groove; 24. fixing ring 2; 25. limiting pulley. DETAILED DESCRIPTION

[0033] 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.

[0034] Example: Reference Figure 1-5 The arc surface processing equipment of a refrigeration valve sheet shown in the figure comprises a frame 1, and a support seat 3 is fixed at the center of the inner bottom end of the frame 1 for placing the refrigeration valve sheet, such as Figure 1As shown, a lifting drive device 2 is installed at the inner top of the frame 1, a lifting seat 4 is fixed to the bottom output end of the lifting drive device 2, a movable disk 10 is rotatably installed at the bottom center of the lifting seat 4, and a clamping seat 14 is rotatably installed at the bottom center of the movable disk 10, which cooperates with the support seat 3 to clamp and fix the refrigeration valve plate.

[0035] Among them, a first reversing component is installed between the lifting seat 4 and the movable disk 10 to drive the movable disk 10 to rotate alternately forward and reverse. It should be noted that the forward and reverse angles of the movable disk 10 are the same, which is specifically set according to the length of the arc groove on the refrigeration valve plate.

[0036] Among them, the movable disk 10 is provided with a driving motor 2 12 whose number is consistent with the arc grooves on the refrigeration valve plate. The driving motor 2 12 is evenly distributed on the movable disk 10 and fixed to the movable disk 10. The output end of the movable disk 10 passes through the movable disk 10 and is coaxially fixed with a grinding roller 13. The alternating forward and reverse rotating movable disk 10 carries the grinding roller 13 to reciprocate along the arc groove track of the refrigeration valve plate, and at the same time cooperates with the driving motor 2 12 to drive the grinding roller 13 to rotate, so as to realize a one-time comprehensive grinding of the arc groove, and the grinding efficiency is high.

[0037] Regarding the first switching component, specifically, Figure 2 As shown, the first reversing assembly includes a driving motor 5, a reciprocating screw 6, a transmission gear plate 7 and a transmission gear ring 8. The driving motor 5 is installed at the bottom end of the lifting seat 4. The reciprocating screw 6 is coaxially fixed with the output shaft of the driving motor 5. The transmission gear plate 7 is horizontally slidably installed at the bottom end of the lifting seat 4. The reciprocating screw 6 is threaded through the transmission gear plate 7. The transmission gear ring 8 is vertically rotatably installed at the center of the bottom end of the lifting seat 4 and meshes with the transmission gear plate 7.

[0038] Based on the coordinated arrangement of the above structure, the drive motor 5 drives the reciprocating screw 6 to rotate, and the reciprocating screw 6 drives the transmission gear plate 7 to reciprocate along its own length direction, thereby driving the transmission gear ring 8 to rotate alternately forward and reverse, and the transmission gear ring 8 drives the movable disk 10 to rotate synchronously.

[0039] Among them, Figure 5 As shown, a grinding block 15 is evenly and horizontally installed on the vertical circumference of the grinding roller 13, and a compression spring 16 is horizontally installed between the grinding block 15 and the grinding roller 13. The grinding block 15 cooperates with the compression spring 16 to perform a stable grinding effect on the refrigeration valve plate.

[0040] In order to make the processing equipment more widely applicable, an adjustment component is installed between the grinding block 15 and the grinding roller 13 to adjust the sliding range of the grinding block 15 inside the grinding roller 13. Specifically, Figure 5It is shown that the adjustment component includes an adjustment block 17, a tension spring 18, a limit wedge block 19, a limit wedge block 20 and a lifting drive device 21. More specifically, the number of adjustment blocks 17, tension springs 18 and limit wedge blocks 19 is consistent with the number of grinding blocks 15, and one adjustment block 17, tension spring 18 and limit wedge block 19 corresponds to one grinding block 15. The adjustment block 17 is horizontally slidably installed on the inner side of the grinding roller 13, the compression spring 16 is horizontally fixed between the adjustment block 17 and the grinding block 15, the tension spring 18 is horizontally fixed between the adjustment block 17 and the grinding roller 13, the limit wedge block 19 is fixed to the side of the adjustment block 17 away from the grinding block 15, the lifting drive device 21 is vertically installed on the inner side of the grinding roller 13, the limit wedge block 20 is vertically slidably installed on the inner side of the grinding roller 13, and simultaneously abuts against the inclined surfaces of multiple limit wedge blocks 19.

[0041] For refrigeration valve plates with larger arc groove sizes, the lifting drive device 21 can be used to drive the limit wedge block 20 to slide in the vertical direction, so that the limit wedge block 20 moves horizontally outward against the limit wedge block 19, thereby causing the grinding roller 13 to move outward as a whole to expand its grinding diameter.

[0042] In order to facilitate the grinding roller 13 to smoothly penetrate the arc groove on the refrigeration valve plate, the bottom of the grinding roller 13 located on the outside of the grinding roller 13 is chamfered, and the chamfer has a greater fault tolerance and is more convenient to install.

[0043] In order to prevent the grinding roller 13 from being fixed in the grinding position during grinding, a second reversing assembly is provided between the lifting seat 4 and the movable disk 10. When the driving motor 15 drives the movable disk 10 to alternately rotate forward and reverse through the first reversing assembly, the movable disk 10 alternately moves up and down under the action of the second reversing assembly. Specifically, Figure 3 and Figure 4 As shown, the second reversing assembly includes a fixed ring 1 22, a limiting slide groove 23, a fixed ring 24 and a limiting pulley 25. More specifically, the fixed ring 1 22 is installed at the lower end of the lifting seat 4 and is coaxially arranged with the lifting seat 4. The limiting slide groove 23 is arranged on the outer surface of the fixed ring 1 22, and the limiting slide groove 23 is a wave shape. The fixed ring 24 is installed at the upper end of the movable disk 10 and is coaxially arranged with the movable disk 10. The limiting pulley 25 is rotatably installed on the inner surface of the fixed ring 24, and the limiting pulley 25 is rollingly adapted to the inner side of the limiting slide groove 23.

[0044] Based on the coordinated arrangement of the above structure, while the movable disk 10 carries the grinding roller 13 along the movable disk 10 in alternating forward and reverse rotation, the fixed ring 24 carries the limiting pulley 25 to move along the limiting groove 23 on the fixed ring 1 22. Since the limiting groove 23 is in a wave shape, the limiting pulley 25 carries the fixed ring 24 and the movable disk 10 to move in a wave-like manner alternating up and down, so that the grinding roller 13 moves up and down on the inner side of the arc groove of the refrigeration valve plate, avoiding the grinding position of the grinding roller 13 being fixed when grinding the arc groove, thereby avoiding local wear of the grinding roller 13 and extending the service life of the grinding roller 13.

[0045] In order to match the above functions, a limit slider 9 is coaxially fixed to the lower end of the transmission gear ring 8, and a limit sleeve 11 is fixed at the upper center of the movable disk 10. The limit sleeve 11 is vertically slidably sleeved on the outer side of the limit slider 9, wherein the horizontal cross-section of the limit slider 9 is non-circular, thereby ensuring that no relative rotation occurs between the limit slider 9 and the limit sleeve 11.

[0046] Among them, both the lifting drive device 1 2 and the lifting drive device 2 21 can adopt conventional lifting drive devices in the prior art, such as electric push rods.

[0047] Working principle of the present invention: Place the refrigeration valve plate on the upper end of the support seat 3, such as Figure 1 As shown, the lifting drive device 2 at the top of the frame 1 drives the pressing seat 14 to cooperate with the supporting seat 3 to clamp and fix the refrigeration valve plate, and at the same time, the grinding roller 13 passes through the arc groove on the refrigeration valve plate, and the grinding roller 13 is located at one end of the arc groove, and then the driving motor 5 is used to drive the reciprocating screw 6 to rotate, and the reciprocating screw 6 drives the transmission gear plate 7 to reciprocate along its own length direction, thereby driving the transmission gear ring 8 to rotate alternately forward and reverse, and the transmission gear ring 8 drives the movable disk 10 to rotate synchronously, and the movable disk 10 The grinding roller 13 is moved back and forth along the arc groove track of the refrigeration valve plate, and the driving motor 2 12 is cooperated to drive the grinding roller 13 to rotate; at the same time, the fixed ring 24 carries the limiting pulley 25 to move along the limiting groove 23 on the fixed ring 1 22. Since the limiting groove 23 is in a wave shape, the limiting pulley 25 carries the fixed ring 24 and the movable disk 10 to move in a wave-like manner alternating up and down, so that the grinding roller 13 moves up and down on the inner side of the arc groove of the refrigeration valve plate, thereby realizing a one-time comprehensive grinding of the arc groove.

[0048] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A circular arc surface processing device for a refrigeration valve plate, comprising a frame (1), characterized in that: A support seat (3) is fixed at the center of the inner bottom end of the frame (1), a lifting drive device (2) is installed at the inner top end of the frame (1), a lifting seat (4) is fixed at the bottom output end of the lifting drive device (2), a movable disk (10) is rotatably installed at the center of the bottom end of the lifting seat (4), and a pressing seat (14) is rotatably installed at the center of the bottom end of the movable disk (10); A first reversing assembly is installed between the lifting seat (4) and the movable disk (10) to drive the movable disk (10) to rotate alternately forward and reverse; The movable disk (10) is provided with two drive motors (12) whose number is consistent with the arc grooves on the refrigeration valve plate. The two drive motors (12) are evenly distributed on the movable disk (10) and are fixed to the movable disk (10). The output end of the movable disk (10) passes through the movable disk (10) and is coaxially fixed with a grinding roller (13).

2. The arc surface processing equipment for refrigeration valve sheet according to claim 1 is characterized in that: The first reversing assembly comprises a driving motor 1 (5), a reciprocating screw (6), a transmission toothed plate (7) and a transmission toothed ring (8); The driving motor (5) is installed at the bottom end of the lifting seat (4), the reciprocating screw (6) is coaxially fixed with the output shaft of the driving motor (5), the transmission tooth plate (7) is horizontally slidably installed at the bottom end of the lifting seat (4), the reciprocating screw (6) is threadedly penetrated through the transmission tooth plate (7), and the transmission gear ring (8) is vertically rotatably installed at the center of the bottom end of the lifting seat (4) and meshed with the transmission tooth plate (7).

3. The arc surface processing equipment for refrigeration valve sheet according to claim 1 is characterized in that: A grinding block (15) is evenly and horizontally mounted on the vertical circumference of the grinding roller (13), and a compression spring (16) is horizontally mounted between the grinding block (15) and the grinding roller (13).

4. The arc surface processing equipment for refrigeration valve sheet according to claim 3 is characterized in that: An adjustment component is installed between the grinding block (15) and the grinding roller (13) to adjust the sliding range of the grinding block (15) inside the grinding roller (13).

5. The arc surface processing equipment for refrigeration valve sheet according to claim 4, characterized in that: The adjustment component comprises an adjustment block (17), a tension spring (18), a first limiting wedge block (19), a second limiting wedge block (20) and a second lifting drive device (21); The number of the adjusting block (17), the tension spring (18) and the limiting wedge block (19) is consistent with the number of the grinding block (15), and one adjusting block (17), the tension spring (18) and the limiting wedge block (19) corresponds to one grinding block (15); the adjusting block (17) is horizontally slidably installed on the inner side of the grinding roller (13); the compression spring (16) is horizontally fixed between the adjusting block (17) and the grinding block (15); the tension spring (18) is horizontally fixed between the adjusting block (17) and the grinding roller (13); and the limiting wedge block (19) is fixed on a side of the adjusting block (17) away from the grinding block (15); The second lifting drive device (21) is vertically installed on the inner side of the grinding roller (13), and the second limiting wedge block (20) is vertically slidably installed on the inner side of the grinding roller (13) and simultaneously abuts against the inclined surfaces of multiple limiting wedge blocks (19).

6. The arc surface processing equipment for refrigeration valve sheet according to claim 5, characterized in that: The bottom portion of the grinding roller (13) located outside the grinding roller (13) is chamfered.

7. The arc surface processing equipment for refrigeration valve sheet according to claim 2, characterized in that: A second reversing assembly is provided between the lifting seat (4) and the movable disk (10), and while the driving motor 1 (5) drives the movable disk (10) to alternately rotate forward and reverse through the first reversing assembly, the movable disk (10) alternately moves up and down under the action of the second reversing assembly.

8. The arc surface processing equipment for refrigeration valve sheet according to claim 7, characterized in that: The second reversing assembly comprises a first fixing ring (22), a limiting sliding groove (23), a second fixing ring (24) and a limiting pulley (25); The fixing ring 1 (22) is installed at the lower end of the lifting seat (4) and is coaxially arranged with the lifting seat (4); the limiting slide groove (23) is arranged on the outer surface of the fixing ring 1 (22), and the limiting slide groove (23) is in a wave shape; the fixing ring 2 (24) is installed at the upper end of the movable disk (10) and is coaxially arranged with the movable disk (10); the limiting pulley (25) is rotatably installed on the inner surface of the fixing ring 2 (24), and the limiting pulley (25) is rollingly adapted to the inner side of the limiting slide groove (23).

9. The arc surface processing equipment for refrigeration valve sheet according to claim 8, characterized in that: A limiting slide block (9) is coaxially fixed to the lower end of the transmission gear ring (8), and a limiting sleeve (11) is fixed at the center of the upper end of the movable disk (10). The limiting sleeve (11) is vertically slidably sleeved on the outer side of the limiting slide block (9).

10. The arc surface processing equipment for refrigeration valve sheet according to claim 9, characterized in that: The horizontal cross section of the limiting sliding block (9) is non-circular.

Images