Air compressor cross connector and machining process thereof

Abstract

The air compressor cross connector comprises an upper end connector barrel, a piston connector is arranged at the lower end of the upper end connector barrel, two pin shaft holes penetrating front and back are formed in the upper end connector barrel, a clamping ring check ring groove is formed in each pin shaft hole, and a clamping ring check ring is arranged in each clamping ring check ring groove. The air compressor cross-shaped connector comprises a piston connector body, a pin shaft hole is formed in the piston connector body, two oil grooves are further formed in the pin shaft hole and located on the inner side of the piston connector body, the axis of the pin shaft hole is perpendicular to the axis of the piston connector body, and reinforcing rings which are integrally connected are arranged on the two sides of each pin shaft hole. The cross-shaped connector and a workpiece are connected more firmly, and the cross-shaped connector can be machined through three procedures through two cutters when machined, so that the number of used cutters can be effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of air compressors, in particular to an air compressor cross connector and a processing technology thereof. Background Art

[0002] With the improvement of casting technology and processing capabilities in the industry, it has become a trend to integrate the compressor body and the middle body. The overall body not only has good rigidity, but the verticality of the crosshead slideway and the spindle hole can be guaranteed by the machine tool, and the workload of mechanical processing and installation is small. However, the existing device structure is complex, with many processing steps, and many tools are required to complete the processing during processing. Three different tools are required for processing the oil groove, the card slot and the plane. Therefore, the tool on the boring machine needs to be replaced during processing, which is inconvenient to use and affects the processing speed. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide an air compressor cross connector and a processing technology thereof. The processing steps are simple, which not only makes the connection between the cross connector and the workpiece more firmly, but also allows the cross connector to be processed in three steps by two tools when processing the cross connector, thereby effectively reducing the number of tools used and effectively solving the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cross connector for an air compressor, comprising an upper connector barrel, a piston connector being provided at the lower end of the upper connector barrel, two pin shaft holes penetrating front and rear being provided on the upper connector barrel, a retaining ring groove being provided inside each pin shaft hole, two oil grooves being provided inside the pin shaft hole, the two oil grooves being located on the inner side of the piston connector, the axis of the pin shaft hole being perpendicular to the axis of the piston connector, and integrally connected reinforcement rings being provided on both sides of each pin shaft hole.

[0005] Furthermore, a threaded connection through hole is provided at the center of the lower end of the piston connecting head, and threaded connection blind holes are provided at the four corners of the lower surface of the piston connecting head.

[0006] Furthermore, the upper end connecting head barrel is a rectangular parallelepiped structure, and the left and right sides of the upper end connecting head barrel are arc-shaped structures, and the central axes of the two arc surfaces are located on the same straight line.

[0007] A processing technology for a cross connector of an air compressor, S1) Workpiece processing: First, the casting is processed by mold injection molding to form the piston connector, reinforcement ring and upper connector barrel. Before the casting is processed, it is necessary to use an electric furnace for heat treatment to remove the stress of the workpiece; S3) Rough machining: When machining the workpiece, first use a lathe to machine the inner circle of the upper end connection head barrel as the machining reference, rough machine the outer side of the upper end connection head barrel, and then machine the lower end face of the piston connection head through the lathe; S3) Hole machining: When machining, fix the workpiece to a boring machine, machine the pin shaft hole through the boring machine, then machine the lubricating oil hole, then machine the oil groove and snap ring retaining groove inside the pin shaft hole. After machining the oil groove and snap ring retaining groove, then machine the pin shaft hole through the boring machine for finish machining. After machining, machine the plane on the outer side of the reinforcing ring through the boring machine tool; S4) Finish machining of the workpiece: Machine the end of the piston connection head. First, fix the device on a drilling machine, and then the drilling machine can drill the threaded connection through hole and the threaded connection blind hole. After drilling, machine the internal threads of the threaded connection through hole and the threaded connection blind hole with a threaded drill bit.

[0008] Further, when machining the holes of the workpiece, connect the reference inner circle at the lower end of the piston connection head with the positioning part to ensure the device.

[0009] Further, a composite tool is used when machining the oil groove, snap ring retaining groove and the plane on the outer side of the reinforcing ring. The tool includes a tool shank. One side of the end of the tool shank is provided with a groove turning cutting edge, and the end of the tool shank is provided with a plane turning cutting edge. The plane turning cutting edge is located on one side of the groove turning cutting edge. The groove and the plane can be machined through the composite tool, thereby effectively reducing the number of tools used.

[0010] Compared with the prior art, the beneficial effects of the present invention are: The groove and the plane can be machined through the composite tool, thereby effectively reducing the number of tools used, making the machined workpiece more accurate. The cross connection head is made more firm through the reinforcing component. The cross connection head of this air compressor and its processing technology have simple processing steps, not only making the connection between the cross connection head and the workpiece more firm, but also three processes can be machined by two tools when machining the cross connection head, thereby effectively reducing the number of tools used. Description of the Drawings

[0011] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a schematic top view structural diagram of the present invention.

[0012] In the figure: 1 pin shaft hole, 2 snap ring retaining groove, 3 oil groove, 4 upper end connection head barrel, 5 piston connection head, 6 threaded connection through hole, 7 threaded connection blind hole, 8 reinforcing ring. Detailed Embodiments

[0013] 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.

[0014] See also Figure 1-2 The present invention provides a technical solution: a cross connector for an air compressor and a processing technology thereof, comprising an upper connector barrel 4, a piston connector 5 is provided at the lower end of the upper connector barrel 4, two pin holes 1 penetrating front and rear are provided on the upper connector barrel 4, a retaining ring groove 2 is provided inside each pin hole 1, two oil grooves 3 are also provided inside the pin hole 1, and the two oil grooves 3 are located on the inner side of the piston connector 5, the axis of the pin hole 1 is perpendicular to the axis of the piston connector 5, and both sides of each pin hole 1 are provided with an integrally connected reinforcement ring 8, a threaded through hole 6 is provided at the center of the lower end of the piston connector 5, and threaded blind holes 7 are provided at the four corners of the lower surface of the piston connector 5, the upper connector barrel 4 is a rectangular parallelepiped structure, and the left and right sides of the upper connector barrel 4 are arc-shaped structures, and the central axes of the two arcs are located on the same straight line.

[0015] A processing technology for a cross connector of an air compressor, S1 Workpiece processing: First, the piston connector 5, the reinforcement ring 8 and the upper connector barrel 4 are processed into a casting by mold injection molding. Before the casting is processed, it is necessary to use an electric furnace for heat treatment to remove the stress of the workpiece; S3 rough machining: when machining the workpiece, first use a lathe to machine the reference inner circle of the inner side of the upper end of the upper end connector barrel 4, perform rough machining on the outer side of the upper end connector barrel 4, and then use a lathe to machine the lower end surface of the piston connector 5; S3 hole processing: during processing, the workpiece is fixed on the boring machine, the pin shaft hole 1 is processed by the boring machine, and then the lubricating oil hole 6 is processed, and then the oil groove 3 and the retaining ring groove 2 inside the pin shaft hole 1 are processed. After the oil groove 3 and the retaining ring groove 2 are processed, the pin shaft hole 1 is finely processed by the boring machine. After the processing is completed, the plane outside the reinforcement ring 8 is processed by the boring machine tool. When processing the oil groove 3, the retaining ring groove 2 and the plane outside the reinforcement ring 8, a composite tool is used. The tool includes a tool handle, and a groove cutting blade is provided on one side of the end of the tool handle, and a plane cutting blade is provided on the end of the tool handle. The plane cutting blade is located on one side of the groove cutting blade. The groove and the plane can be processed by the composite tool, so that the number of tools used can be effectively reduced; S4 workpiece finishing: For the end processing of the piston connecting head 5, first fix the device on the drilling machine, and then use the drilling machine to drill the threaded through hole 6 and the threaded blind hole 7. After drilling, use the threaded drill bit to process the internal threads of the threaded through hole 6 and the threaded blind hole 7. When processing the workpiece hole, connect the reference inner circle of the lower end of the piston connecting head 5 to the corresponding positioning piece to ensure the device.

[0016] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. An air compressor cross connector, comprising an upper connector barrel (4), Features: A piston connector (5) is provided at the lower end of the upper connector barrel (4). The upper connector barrel (4) is provided with two pin holes (1) extending forward and backward. A retaining ring groove (2) is provided inside each pin hole (1). Two oil grooves (3) are also provided inside the pin hole (1). The two oil grooves (3) are located on the inner side of the piston connector (5). The axis of the pin hole (1) is perpendicular to the axis of the piston connector (5). Both sides of each pin hole (1) are provided with integrally connected reinforcing rings (8).

2. The air compressor cross connector according to claim 1, Features: A threaded connection through hole (6) is provided at the centre of the lower end of the piston connecting head (5), and threaded connection blind holes (7) are provided at the four corners of the lower surface of the piston connecting head (5).

3. The air compressor cross connector according to claim 1, Features: The upper end connecting head barrel (4) is a rectangular parallelepiped structure, and the left and right sides of the upper end connecting head barrel (4) are arc-shaped structures, and the central axes of the two arc surfaces are located on the same straight line.

4. The processing technology of the cross connector of an air compressor according to claim 1, Features: S1) Workpiece processing: First, the piston connector (5), the reinforcement ring (8) and the upper connector barrel (4) are processed into a casting by means of mold injection molding. Before the casting is processed, it is necessary to use an electric furnace for heat treatment to remove the stress of the workpiece; S3) Rough machining: When machining the workpiece, firstly use a lathe to machine the reference inner circle of the upper end inner side of the upper end connecting head barrel (4), perform rough machining on the outer side of the upper end connecting head barrel (4), and then use a lathe to machine the lower end surface of the piston connecting head (5); S3) Hole processing: During processing, the workpiece is fixed on a boring machine, and the pin shaft hole (1) is processed by the boring machine, and then the lubricating oil hole (6) is processed, and then the oil groove (3) and the retaining ring groove (2) inside the pin shaft hole (1) are processed. After the oil groove (3) and the retaining ring groove (2) are processed, the pin shaft hole (1) is finely processed by the boring machine. After the processing is completed, the plane outside the reinforcement ring (8) is processed by the boring machine tool; S4) Workpiece finishing: For the end processing of the piston connector (5), the device is first fixed on a drilling machine, and then the threaded through hole (6) and the threaded blind hole (7) are drilled by the drilling machine. After the drilling is completed, the internal threads of the threaded through hole (6) and the threaded blind hole (7) are processed by a thread drill.

5. The processing technology of the cross connector of an air compressor according to claim 4, Features: When machining the workpiece hole, the reference inner circle at the lower end of the piston connector (5) is connected to the positioning piece to ensure the assembly.

6. The processing technology of the cross connector of an air compressor according to claim 4, Features: A composite tool is used for machining the planes of the oil groove (3), the retaining ring groove (2) and the outer side of the reinforcement ring (8), the tool comprising a tool handle, a groove cutting blade being provided on one side of the end of the tool handle, and a surface cutting blade being provided on the end of the tool handle, the surface cutting blade being located on one side of the groove cutting blade.

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