Pipeline end face groove machining equipment

Abstract

The utility model relates to the technical field of pipeline machining, in particular to pipeline end face groove machining equipment which comprises a pipeline expansion mechanism and a groove machining mechanism, the pipeline expansion mechanism comprises an air cylinder, a pull rod is connected to the output end of the air cylinder, the tail end of the pull rod is connected with a spring chuck in a sleeved mode, the spring chuck is provided with an expansion end, and the expansion end is connected with the groove machining mechanism. The outer side end of the pull rod is sleeved with a shaft sleeve. The groove machining mechanism comprises a main machine shell, a main shaft is assembled in the main machine shell, and a pneumatic motor is assembled at the lower end of the main machine shell. A knife rest is assembled on the main shaft, and a beveling knife is arranged on the knife rest; according to the beveling machine, the structure of the beveling machine is redesigned, the air cylinder is introduced to control the structure of the expansion pipeline, expansion installation of equipment is controlled through the air cylinder, convenience and high efficiency are achieved, and the problem of non-concentric installation is not prone to occurring; the manual lever push-pull structure is more flexible in form compared with hand wheel feeding, rapid feeding and rapid withdrawing can be achieved, and efficiency is obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline processing, in particular to a pipeline end face groove processing device. Background Art

[0002] For general heat exchangers, the typical structure is to weld a large number of thin-walled small tube bundles on the tube sheet. When the thin-walled small-diameter heat exchange tubes and tube sheets are welded by automatic welding, the length of the heat exchange tubes extending out of the tube sheet must meet the specified requirements. The finished heat exchange tubes have requirements for appearance and size. Therefore, a groove machine is required to process the ends of the heat exchange tubes to a fixed length and remove burrs to ensure that the length of all heat exchange tubes meets the specified length and to ensure the subsequent welding quality.

[0003] Traditional pipe beveling machines need to manually tighten the expansion nut when installed relative to the pipe, so that the equipment is installed on the inner wall of the pipe; during processing, the feed handwheel is manually turned to achieve the feed of the tool. In actual processing, the installation and fixation of the equipment by tightening the expansion nut is very inefficient. To fully fix the equipment, it is necessary to apply a suitable torque. If the torque is too small, it is easy to cause the equipment to be fixed loosely. If the torque is too large, it will cause deformation and pinching of the thin-walled pipe. Secondly, for small pipes, when the processing allowance is large, the handwheel feed speed is slow, and the cutter head cannot be quickly retracted after the processing is completed to process the next pipe opening. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of the utility model is to provide a pipe end face beveling processing equipment, which is used to solve the problems of low installation efficiency and difficult control of tensioning force when the beveling machine is installed in a small pipe in the prior art, as well as low feeding efficiency and inability to quickly retract the tool when using handwheel feeding.

[0005] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides a pipeline end face groove processing equipment, including a pipeline expansion mechanism and a groove processing mechanism;

[0006] The pipeline expansion mechanism comprises:

[0007] cylinder;

[0008] A pull rod is connected to the output end of the cylinder;

[0009] A spring chuck is sleeved on the end of the pull rod, and the spring chuck has an expansion end;

[0010] A shaft sleeve is sleeved on the outer end of the pull rod, and the shaft sleeve is used to cooperate with the extrusion spring chuck to enable the expansion end to movably expand;

[0011] The groove processing mechanism comprises:

[0012] A main housing, in which a main shaft is mounted, and the main shaft sleeve is arranged outside the sleeve;

[0013] A pneumatic motor is installed at the lower end of the main housing, and the output end of the pneumatic motor is transmission-connected to the main shaft;

[0014] A tool holder is mounted on one end of the spindle close to the spring chuck, and a beveling cutter is arranged on the tool holder. The spindle drives the tool holder to rotate and the beveling cutter is used to perform beveling processing on the pipeline.

[0015] In one embodiment of the utility model, a cylinder connecting end cover is provided on the cylinder, and the shaft sleeve is connected to the cylinder connecting end cover.

[0016] In one embodiment of the utility model, a feed handle is hinged on the lower end of the cylinder connection end cover, a connecting rod is hinged on the main housing, and the feed handle is hinged on the connecting rod at the same time.

[0017] In one embodiment of the utility model, the pneumatic motor has an air inlet and an air outlet, and the air outlet is equipped with a baffle, one end of the baffle is movably connected to the pneumatic motor through a spring, and the other end extends to the outside.

[0018] In one embodiment of the present invention, the air outlet is configured as a Z-shaped structure having a transition area, and the baffle can be movably matched in the transition area of ​​the air outlet.

[0019] In one embodiment of the utility model, a pressure handle is hinged on the outer end of the pneumatic motor, and the pressure handle cooperates to press on the end of the baffle located outside.

[0020] In one embodiment of the present invention, a travel limit rod is further provided on the pneumatic motor.

[0021] As described above, the pipe end face groove processing equipment of the utility model has the following beneficial effects:

[0022] 1. By setting up the pipeline expansion mechanism, when using it, you only need to put the spring chuck at the front end of the equipment into the pipeline, open the cylinder valve, pull the pull rod backward relative to the shaft sleeve to make the expansion end of the spring chuck expand in the pipeline, and then you can easily install and fix the equipment; this method can accurately control the tension of the cylinder, the equipment is firmly fixed, and it will not damage the inner wall of the pipeline, which is conducive to improving the accuracy of subsequent pipeline groove processing;

[0023] 2. By setting the feed handle and connecting rod for matching applications, the push-pull feed of the groove processing mechanism can be operated manually by lever type. Compared with the handwheel thread feed of the traditional technology, the feed force can be controlled more accurately and the feed speed can be increased. In addition, if there is a problem during the groove processing, the tool can be quickly withdrawn, which effectively improves the groove processing effect of the pipe;

[0024] 3. The utility model redesigns the structure of the beveling machine and introduces a structure of a cylinder controlling the expansion pipe. The cylinder is used to control the expansion and tightening installation of the equipment, which is not only convenient and efficient, but also; the manual lever push-pull feed control structure is more flexible in form than the handwheel feed, and can achieve fast feeding and fast exit, with obvious efficiency improvement. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Shown is a three-dimensional schematic diagram of the pipe end face groove processing equipment disclosed in the utility model.

[0026] Figure 2 Shown is the front view of the pipe end face groove processing equipment disclosed in the utility model.

[0027] Figure 3 Display as Figure 2 Schematic diagram of the enlarged structure of the spring chuck.

[0028] Figure 4 Shown is a cross-sectional structural schematic diagram of the pipeline end face groove processing equipment disclosed in the utility model.

[0029] Figure 5 Display as Figure 4 Enlarged view of point A in the middle.

[0030] Component number description

[0031] Cylinder 1; tie rod 2; spring chuck 3; expansion end 31; sleeve 4; main housing 5; spindle 6; pneumatic motor 7; air inlet 71; air outlet 72; tool holder 8; beveling cutter 9; cylinder connecting end cover 10; feed handle 11; connecting rod 12; baffle 13; pressing handle 14. DETAILED DESCRIPTION

[0032] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0033] See also Figures 1 to 5It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change in the proportion relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the utility model without affecting the effects and purposes that can be achieved by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantially changing the technical content.

[0034] See also Figure 1-5 The utility model provides a pipeline end face groove processing device, comprising a pipeline expansion mechanism and a groove processing mechanism.

[0035] The pipeline expansion mechanism includes a cylinder 1, on which a cylinder connection end cover 10 is provided; a pull rod 2 is connected to the output end of the cylinder 1, and a spring chuck 3 is sleeved on the end of the pull rod 2, and the spring chuck 3 has an expansion end 31; a shaft sleeve 4 is sleeved on the outer end of the pull rod 2, and the shaft sleeve 4 is connected to the cylinder connection end cover 10; the shaft sleeve 4 is used to cooperate in squeezing the spring chuck 3 and make the expansion end 31 expand movably; by setting up the pipeline expansion mechanism, when in use, it is only necessary to put the spring chuck 3 at the front end of the equipment into the pipeline, open the valve of the cylinder 1, pull the pull rod 2 backward relative to the shaft sleeve 4 to make the expansion end 31 of the spring chuck 3 expand in the pipeline, and the equipment can be easily installed and fixed; this method can accurately control the pulling force of the cylinder 1, the equipment is firmly fixed, and the inner wall of the pipeline will not be damaged, which is conducive to improving the accuracy of subsequent pipeline groove processing.

[0036] The groove processing mechanism includes a main housing 5, in which a main shaft 6 is installed, and the main shaft 6 is sleeved on the outside of the sleeve 4; an air motor 7 is installed at the lower end of the main housing 5, and the output end of the air motor 7 is connected to the main shaft 6 by transmission. Specifically, the transmission connection method can adopt a bevel gear structure, including a first bevel gear and a second bevel gear that are meshed with a taper, the first bevel gear is sleeved on the output end of the air motor 7, and the second bevel gear is sleeved on the main shaft 6; a tool holder 8 is installed at one end of the main shaft 6 close to the spring chuck 3, and a groove cutter 9 is arranged on the tool holder 8. The operation of the air motor 7 drives the first bevel gear to rotate, and the second bevel gear that is meshed with a taper on the first bevel gear rotates accordingly, driving the main shaft 6 to rotate; the groove processing mechanism drives the main shaft 6 through the air motor 7 to drive the tool holder 8 to rotate and adopts the groove cutter 9 to perform groove processing on the pipeline.

[0037] A feed handle 11 is hinged at the lower end of the cylinder connection end cover 10, and a connecting rod 12 is hinged on the main housing 5. The feed handle 11 is also hinged to the connecting rod 12. Pressing the feed handle 11 can feed the main housing 5 through the connecting rod 12, and then the feeding action is applied to the groove processing mechanism; by setting the feed handle 11 and the connecting rod 12 for coordinated application, the groove processing mechanism can be manually lever-operated for push-pull feeding. Compared with the handwheel thread feeding of traditional technology, the feeding force can be more accurately controlled and the feeding speed can be increased. In addition, if a problem occurs during the groove processing, the tool can be quickly retracted, thereby effectively improving the groove processing effect of the pipeline.

[0038] The pneumatic horse 7 is also provided with a travel limit rod 15 for limiting the excessive feeding activity of the groove processing mechanism.

[0039] The pneumatic motor 7 has an air inlet 71 and an air outlet 72. Gas enters the pneumatic motor 7 from the air inlet 71 and flows out from the air outlet 72. The power provided by the gas flow drives the pneumatic motor 7 to rotate. A baffle 13 is provided in the air outlet 72. One end of the baffle 13 is movably connected to the pneumatic motor 7 through a spring and the other end extends to the outside. The air outlet 72 is set to a Z-shaped structure with a transition area. The baffle 13 can be movably matched in the transition area of ​​the air outlet 72. A pressure handle 14 is hinged on the outer end of the pneumatic motor 7. The pressure handle 14 is pressed on the end of the baffle 13 located outside. By pressing the pressure handle 14 and applying the pressing force on the baffle 13, the baffle 13 compresses the spring to one side, so that the transition area of ​​the Z-shaped structure air outlet 72 is turned on, thereby controlling the opening of the pneumatic motor 7. When the pneumatic motor 7 needs to be turned off, the pressure handle 14 is released, and the spring drives the baffle 13 to reset. The switch control of the pneumatic motor 7 is flexible and easy to use.

[0040] In summary, the utility model redesigns the structure of the groove machine and introduces a structure in which the cylinder 1 controls the expansion and tightening of the pipe. The expansion and tightening installation of the equipment is controlled by the cylinder 1, which is not only convenient and efficient, but also; the manual lever push-pull feeding control structure is more flexible in form than the hand wheel feeding, and can achieve fast feeding and fast withdrawal, and the efficiency is significantly improved. Therefore, the utility model effectively overcomes various shortcomings in the prior art and has a high industrial utilization value.

[0041] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A pipe end face groove processing equipment, characterized in that: Including pipe expansion mechanism and groove processing mechanism; The pipeline expansion mechanism comprises: Cylinder (1); A pull rod (2) is connected to the output end of the cylinder (1); A spring chuck (3) is sleeved on the end of the pull rod (2), and the spring chuck (3) has an expansion end (31); A shaft sleeve (4) is sleeved on the outer end of the pull rod (2), and the shaft sleeve (4) is used to cooperate with the compression spring clamp (3) and enable the expansion end (31) to expand movably; The groove processing mechanism comprises: A main housing (5), in which a main shaft (6) is mounted, and the main shaft (6) is sleeved on the outside of the shaft sleeve (4); A pneumatic motor (7) is mounted at the lower end of the main housing (5), and the output end of the pneumatic motor (7) is transmission-connected to the main shaft (6); A tool holder (8) is mounted on one end of the main shaft (6) close to the spring chuck (3), and a beveling cutter (9) is arranged on the tool holder (8). The main shaft (6) drives the tool holder (8) to rotate and uses the beveling cutter (9) to perform beveling processing on the pipeline.

2. The pipe end face groove processing equipment according to claim 1, characterized in that: The cylinder (1) is provided with a cylinder connection end cover (10), and the shaft sleeve (4) is connected to the cylinder connection end cover (10).

3. The pipe end face groove processing equipment according to claim 2 is characterized in that: A feeding handle (11) is hingedly connected to the lower end of the cylinder connection end cover (10), a connecting rod (12) is hingedly connected to the main housing (5), and the feeding handle (11) is also hingedly connected to the connecting rod (12).

4. The pipe end face groove processing equipment according to claim 1, characterized in that: The pneumatic motor (7) has an air inlet (71) and an air outlet (72), and a baffle (13) is provided in the air outlet (72). One end of the baffle (13) is movably connected to the pneumatic motor (7) via a spring, and the other end extends to the outside.

5. The pipe end face groove processing equipment according to claim 4, characterized in that: The air outlet (72) is configured as a Z-shaped structure having a transition area, and the baffle (13) can be movably fitted in the transition area of ​​the air outlet (72).

6. The pipe end face groove processing equipment according to claim 5, characterized in that: A pressing handle (14) is hinged on the outer end of the pneumatic motor (7), and the pressing handle (14) cooperates to press on the end of the baffle (13) located outside.

7. The pipe end face groove processing equipment according to claim 4, characterized in that: The pneumatic motor (7) is also provided with a travel limit rod (15).

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