A processing device for refrigeration compressor shell castings

Abstract

The application provides a refrigeration compressor shell casting machining device, which comprises a machining cabinet, a main machining table and a vice machining table arranged in the upper end of the machining cabinet respectively, a rotating assembly and an inner polishing assembly arranged in the upper end of the main machining table for driving the shell casting to rotate and polish the inner surface, an outer polishing assembly arranged in the upper end of the vice machining table for realizing synchronous outer polishing machining of the shell casting in cooperation with the inner polishing assembly, and the inner polishing assembly comprising a supporting table, a first vertical lead screw sliding table, an inner polishing motor, an inner polishing head and an adjusting unit, wherein the first vertical lead screw sliding table is in transmission connection with the adjusting unit for driving the first vertical lead screw sliding table to adjust the angle. The application can polish the inner and outer surfaces of the shell casting synchronously, and realize the effect of synchronous polishing and deburring of the inner and outer surfaces of the shell casting.

Description

Technical Field

[0001] This invention relates to the field of refrigeration compressor housing processing equipment, and in particular to a refrigeration compressor housing casting processing device. Background Technology

[0002] Refrigeration compressor housings are mostly thin-walled castings made of gray cast iron or ductile iron. Their structure is cylindrical, featuring an upper stop, a lower mounting flange, an inner bearing mounting cavity, axial oil holes, and circumferential suction / exhaust channels. The wall thickness is typically only 3-8mm. The diameter of the upper stop is φ80-120mm, and the flange connection surface has 6-8 threaded holes. The inner bearing mounting cavity has a stepped structure (diameter φ50-70mm), and the axial oil hole diameter is φ8-12mm. These structures require extremely high precision and consistency in grinding and deburring. It is necessary not only to remove the parting line, flash, and burrs on the outer surface and the inner cavity, but also to ensure the roughness of the sealing surface and the mating surface of the stop to avoid deformation of the thin-walled parts.

[0003] In the current machining of refrigeration compressor housing castings, the deburring of the housing is mostly done in a step-by-step process. This step-by-step process leads to asynchronous grinding of the inner and outer surfaces, low grinding efficiency, and easy imbalance of precision. For example, grinding of the outer surface relies on a circular grinding wheel machine or robot to process the outer circle, flange edge, and outer edge of the stop. Grinding of the inner cavity and channels requires manual or semi-automatic operation with a slender grinding head. The two clamping operations result in a long interval between processes, and clamping errors can easily cause the coaxiality deviation of the inner and outer circles of the stop, affecting the accuracy of subsequent precision machining and assembly. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the existing technology. The present invention proposes a processing device for refrigeration compressor housing castings.

[0005] To address the aforementioned issues in the existing machining of refrigeration compressor housing castings, where deburring and grinding are often performed in stages, leading to asynchronous grinding of the inner and outer surfaces, low grinding efficiency, and potential inconsistencies in precision, this invention offers the following technical solution: A processing device for refrigeration compressor housing castings includes: a processing cabinet, wherein a main processing table and a secondary processing table are respectively arranged inside the upper end of the processing cabinet; The rotating assembly and the internal grinding assembly are respectively set on the upper end of the main machining table, and are used to drive the housing casting to rotate and grind the inner surface; the upper end of the auxiliary machining table is provided with an external grinding assembly, which is used to work with the internal grinding assembly to realize the synchronous external grinding of the housing casting. The internal polishing assembly includes: The system comprises a support platform, a first vertical lead screw slide, an internal grinding motor, an internal grinding head, and an adjustment unit. The first vertical lead screw slide is connected to the adjustment unit for driving the first vertical lead screw slide to adjust its angle. The adjustment unit includes an adjustment shaft, an adjustment motor, a worm gear, and a worm wheel. The adjustment shaft is rotatably connected to the upper end of the support platform. The first vertical lead screw slide is connected to the inner side of the adjustment shaft. The inner drive shaft of the adjustment motor is connected to the worm gear. The upper end of the worm gear meshes with the worm wheel. The worm wheel is connected to the outer side of the adjustment shaft, forming a complete angle adjustment transmission link.

[0006] Preferably, the support platform is mounted on the upper end of the main processing table, the internal grinding motor is connected to the outer side of the first vertical lead screw slide, and the internal grinding head is connected to the lower end of the internal grinding motor drive shaft.

[0007] Preferably, there are two auxiliary processing tables, which are symmetrically distributed at different heights along the upper interior of the processing cabinet.

[0008] Preferably, the rotating assembly includes a rotating motor and a rotating table. The rotating motor is located at the top of the main processing table, and the upper drive shaft of the rotating motor is connected to the lower end of the rotating table via a synchronous pulley, a synchronous belt, and a synchronous belt.

[0009] Preferably, the rotary table is rotatably connected to the top of the main processing table, and the top of the rotary table is provided with a plurality of positioning holes for fixing the housing casting to be processed on the top of the rotary table.

[0010] Preferably, the external grinding assembly includes a horizontal lead screw slide, a second vertical lead screw slide, an extension stage, an external grinding motor, and an external grinding head.

[0011] Preferably, the horizontal lead screw slide is disposed on the upper end of the auxiliary machining table, the second vertical lead screw slide is drivenly connected to the upper end of the horizontal lead screw slide, and the extension table is drivenly connected to the upper end of the second vertical lead screw slide.

[0012] Preferably, the external grinding motor is mounted on the upper end of the extension platform, and the external grinding head is connected to the synchronous belt and the lower end of the external grinding motor via a synchronous pulley. The external grinding head is rotatably connected to the side end of the extension platform for grinding the outer surface of the machine housing.

[0013] Preferably, the first vertical lead screw slide, the horizontal lead screw slide, and the second vertical lead screw slide have the same structure, each consisting of a mounting base, a lead screw motor, a transmission lead screw, a slide rail, a slider, and a slide block.

[0014] Preferably, the lead screw motor is located on the outside of the mounting base, the drive shaft of the lead screw motor is connected to the drive screw, the drive screw is rotatably connected to the middle of the mounting base, the drive screw is connected to the slide block through the lead screw nut, the inner side of the slide block is fixedly connected to the slider, the slider is slidably connected to the slide rail, and the slide rail is fixed to the side end of the mounting base.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention, while the housing casting rotates horizontally with the turntable, simultaneously controls the activation of the first vertical lead screw slide, the horizontal lead screw slide, and the second vertical lead screw slide, driving the inner and outer grinding heads to gradually approach the inner and outer surfaces of the housing casting, respectively. Once the inner and outer grinding heads reach the preset grinding positions, the inner and outer grinding motors are activated, driving the inner and outer grinding heads to rotate synchronously, performing simultaneous rotational grinding on the inner and outer surfaces of the housing casting, achieving the effect of simultaneously grinding and deburring the inner and outer surfaces of the housing casting.

[0016] The present invention can also control the start of the adjustment motor, which drives the worm to rotate. The worm drives the worm wheel to rotate through meshing transmission. The worm wheel then drives the adjustment shaft to rotate synchronously. The adjustment shaft drives the first vertical lead screw slide to rotate and swing. Finally, the grinding head inside the synchronous belt swings and adjusts the angle, thereby flexibly adjusting the grinding angle of the inner grinding head to ensure that all areas of the inner surface of the housing casting can be fully ground. Attached Figure Description

[0017] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts. Wherein: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial structural diagram of the present invention. Figure 1 ; Figure 3 This is a partial structural diagram of the present invention. Figure 2 ; Figure 4 This is a schematic diagram of the structure at point A of the present invention; Figure 5 This is a schematic diagram of the structure at point B of the present invention.

[0018] Reference numerals in the attached drawings: 1. Machining cabinet; 2. Main machining table; 3. Auxiliary machining table; 4. Rotating assembly; 401. Rotating motor; 402. Rotating table; 5. Internal grinding assembly; 501. Support table; 502. First vertical lead screw slide; 503. Internal grinding motor; 504. Internal grinding head; 6. Positioning hole; 7. External grinding assembly; 701. Horizontal lead screw slide; 702. Second vertical lead screw slide; 703. Extension table; 704. External grinding motor; 705. External grinding head; 8. Adjustment unit; 801. Adjustment shaft; 802. Adjustment motor; 803. Worm gear; 804. Worm wheel; 9. Mounting base; 10. Lead screw motor; 11. Transmission lead screw; 12. Slide rail; 13. Slider; 14. Slide seat. Detailed Implementation

[0019] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0020] Specific embodiments of the present invention are described below with reference to the accompanying drawings.

[0021] Please see Figures 1-5 This embodiment proposes a processing device for refrigeration compressor housing castings, including a processing cabinet 1. A main processing table 2 and a secondary processing table 3 are respectively mounted on the upper interior of the processing cabinet 1 via screws. Two secondary processing tables 3 are provided, symmetrically distributed at different heights along the upper interior of the processing cabinet 1 to accommodate grinding operations at different heights. A rotating assembly 4 and an inner grinding assembly 5 are respectively mounted on the upper end of the main processing table 2. The rotating assembly 4 drives the housing casting to rotate for grinding, while the inner grinding assembly 5 is used to grind the inner wall of the housing casting. An outer grinding assembly 7 is mounted on the upper end of the secondary processing table 3, used in conjunction with the inner grinding assembly 5 to achieve synchronous outer grinding of the housing casting.

[0022] The rotating assembly 4 includes a rotating motor 401 and a rotating table 402. The rotating motor 401 is fixed to the top of the main processing table 2 with screws. Its upper drive shaft is connected to the lower end of the rotating table 402 via a synchronous pulley, a synchronous belt, and a synchronous belt. The rotating table 402 is rotatably connected to the top of the main processing table 2 via a rotating shaft. The upper end of the rotating table 402 has several positioning holes 6, through which positioning bolts can be used to firmly install and fix the machine housing casting to be processed onto the upper end of the rotating table 402.

[0023] The internal grinding assembly 5 includes a support platform 501, a first vertical lead screw slide 502, an internal grinding motor 503, an internal grinding head 504, and an adjustment unit 8. The support platform 501 is mounted on the upper side of the main processing table 2 with screws. The adjustment unit 8 is assembled on the upper end of the support platform 501. The first vertical lead screw slide 502 is connected to the adjustment unit 8, allowing for angle adjustment via the adjustment unit 8. The internal grinding motor 503 is connected to the outer side of the first vertical lead screw slide 502, enabling lifting and lowering movement. The internal grinding head 504 is fixed to the lower drive shaft of the internal grinding motor 503 via a key. The adjustment unit 8 includes an adjustment shaft 801, an adjustment motor 802, a worm gear 803, and a worm wheel 804. The adjustment shaft 801 is rotatably connected to the upper end of the support platform 501 via a rotating shaft, and the first vertical lead screw slide 502 is welded and fixed to the inner side of the adjustment shaft 801. The adjustment motor 802 is mounted on the upper end of the support platform 501 with screws, and its inner drive shaft is connected to the worm gear 803 via a key. The worm gear 803 is rotatably connected to the outer side of the support platform 501 via a bearing seat. The upper end of the worm gear 803 is meshed with the worm wheel 804, and the worm wheel 804 is connected to the outer side of the adjustment shaft 801 via a key, forming a complete angle adjustment transmission link.

[0024] The external grinding assembly 7 includes a horizontal lead screw slide 701, a second vertical lead screw slide 702, an extension table 703, an external grinding motor 704, and an external grinding head 705. The horizontal lead screw slide 701 is mounted on the upper end of the auxiliary processing table 3 with screws. The second vertical lead screw slide 702 is drivenly connected to the upper end of the horizontal lead screw slide 701, and the extension table 703 is drivenly connected to the upper end of the second vertical lead screw slide 702. The external grinding motor 704 is supported and fixed to the upper end of the extension table 703 with screws. The external grinding head 705 is drivenly connected to the lower end of the external grinding motor 704 via a synchronous pulley, synchronous belt, and drive shaft. The external grinding head 705 is rotatably connected to the side end of the extension table 703 via a rotating shaft. The grinding operation on the outer surface of the machine housing is achieved by rotating the external grinding head 705.

[0025] The first vertical lead screw slide 502, the horizontal lead screw slide 701, and the second vertical lead screw slide 702 have the same structure, all consisting of a mounting base 9, a lead screw motor 10, a transmission lead screw 11, a slide rail 12, a slider 13, and a slide block 14. The lead screw motor 10 is mounted on the outside of the mounting base 9 by screws, and its drive shaft is connected to the transmission lead screw 11. The transmission lead screw 11 is rotatably connected to the middle of the mounting base 9 via a rotating shaft. The transmission lead screw 11 is connected to the slide block 14 through a lead screw nut. The lead screw motor 10 drives the transmission lead screw 11 to rotate, thereby moving the slide block 14. The inner side of the slide block 14 is fixedly connected to the slider 13 by screws. The slider 13 is slidably engaged with the slide rail 12. The slide rail 12 is fixed to the side of the mounting base 9 by screws. The movement of the slide block 14 is linearly limited by the cooperation between the slide rail 12 and the slider 13. Finally, the sliding function of the first vertical lead screw slide 502, the horizontal lead screw slide 701 and the second vertical lead screw slide 702 are realized by the slide block 14.

[0026] Please continue reading. Figures 1-5 The specific usage process of this embodiment is as follows: First, the housing casting to be polished and deburred is fixed to the upper end of the rotating table 402 by bolts and positioning holes 6. After fixing, the rotating motor 401 is turned on. The rotating motor 401 drives the rotating table 402 to rotate horizontally through the transmission action of the synchronous pulley and synchronous belt, thereby synchronously driving the housing casting to maintain a horizontal rotation state.

[0027] While the housing casting rotates horizontally with the rotating table 402, the first vertical lead screw slide 502, the horizontal lead screw slide 701, and the second vertical lead screw slide 702 are simultaneously activated, driving the inner grinding head 504 and the outer grinding head 705 to gradually approach the inner and outer surfaces of the housing casting, respectively. Once the inner grinding head 504 and the outer grinding head 705 have moved to the preset grinding position, the inner grinding motor 503 and the outer grinding motor 704 are activated, driving the inner grinding head 504 and the outer grinding head 705 to rotate synchronously, performing synchronous rotational grinding on the inner and outer surfaces of the housing casting, achieving the effect of simultaneously grinding and deburring the inner and outer surfaces of the housing casting.

[0028] In addition, the grinding angle of the inner grinding head 504 can be adjusted by adjusting unit 8. The specific operation is as follows: control the start of adjusting motor 802, adjusting motor 802 drives worm 803 to rotate, worm 803 drives worm wheel 804 to rotate through meshing transmission, worm wheel 804 drives adjusting shaft 801 to rotate synchronously, adjusting shaft 801 drives first vertical lead screw slide 502 to rotate and swing, and finally synchronously belt inner grinding head 504 to swing and adjust the angle, so that the grinding angle of inner grinding head 504 can be flexibly adjusted to ensure that all areas of the inner surface of the housing casting can be fully ground.

[0029] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A processing device for casting refrigeration compressor housings, characterized in that, Includes: a processing cabinet, wherein a main processing table and a secondary processing table are respectively arranged inside the upper part of the processing cabinet; The rotating assembly and the internal grinding assembly are respectively set on the upper end of the main machining table, and are used to drive the housing casting to rotate and grind the inner surface; the upper end of the auxiliary machining table is provided with an external grinding assembly, which is used to work with the internal grinding assembly to realize the synchronous external grinding of the housing casting. The internal polishing assembly includes: The system comprises a support platform, a first vertical lead screw slide, an internal grinding motor, an internal grinding head, and an adjustment unit. The first vertical lead screw slide is connected to the adjustment unit for driving the first vertical lead screw slide to adjust its angle. The adjustment unit includes an adjustment shaft, an adjustment motor, a worm gear, and a worm wheel. The adjustment shaft is rotatably connected to the upper end of the support platform. The first vertical lead screw slide is connected to the inner side of the adjustment shaft. The inner drive shaft of the adjustment motor is connected to the worm gear. The upper end of the worm gear meshes with the worm wheel. The worm wheel is connected to the outer side of the adjustment shaft, forming a complete angle adjustment transmission link.

2. The refrigeration compressor housing casting processing device according to claim 1, characterized in that, The support platform is set on the upper end of the main processing table, the internal grinding motor is connected to the outer side of the first vertical lead screw slide, and the internal grinding head is connected to the lower end of the internal grinding motor drive shaft.

3. The refrigeration compressor housing casting processing device according to claim 1, characterized in that, There are two auxiliary processing tables, which are symmetrically distributed at different heights along the upper interior of the processing cabinet.

4. The refrigeration compressor housing casting processing device according to claim 1, characterized in that, The rotating assembly includes a rotating motor and a rotating table. The rotating motor is located at the top of the main processing table, and the upper drive shaft of the rotating motor is connected to the lower end of the rotating table via a synchronous pulley, a synchronous belt, and a synchronous belt.

5. The refrigeration compressor housing casting processing device according to claim 4, characterized in that, The rotary table is rotatably connected to the top of the main processing table. The top of the rotary table has several positioning holes for fixing the housing casting to be processed on the top of the rotary table.

6. The refrigeration compressor housing casting processing apparatus according to claim 1, characterized in that, The external grinding assembly includes a horizontal lead screw slide, a second vertical lead screw slide, an extension table, an external grinding motor, and an external grinding head.

7. The refrigeration compressor housing casting processing apparatus according to claim 6, characterized in that, The horizontal lead screw slide is located on the upper end of the auxiliary machining table, the second vertical lead screw slide is driven to the upper end of the horizontal lead screw slide, and the extension table is driven to the upper end of the second vertical lead screw slide.

8. The refrigeration compressor housing casting processing apparatus according to claim 7, characterized in that, The external grinding motor is mounted on the upper end of the extension platform. The external grinding head is connected to the synchronous belt and the lower end of the external grinding motor via a synchronous pulley. The external grinding head is rotatably connected to the side end of the extension platform and is used for grinding the outer surface of the machine housing.

9. The refrigeration compressor housing casting processing device according to claim 1, characterized in that, The first vertical lead screw slide, the horizontal lead screw slide, and the second vertical lead screw slide have the same structure, all consisting of a mounting base, a lead screw motor, a transmission lead screw, a slide rail, a slider, and a slide block.

10. The refrigeration compressor housing casting processing apparatus according to claim 9, characterized in that, The lead screw motor is located on the outside of the mounting base. The drive shaft of the lead screw motor is connected to the drive screw. The drive screw is rotatably connected to the middle of the mounting base. The drive screw is connected to the slide block through the lead screw nut. The inner side of the slide block is fixedly connected to the slider. The slider is slidably connected to the slide rail. The slide rail is fixed to the side end of the mounting base.

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