Air conditioner copper pipe chamfering chip removing device

Abstract

The utility model discloses an air conditioner copper pipe chamfering chip removing device which comprises an air nozzle, the air nozzle comprises a body, an air cavity is formed in the body, an air injection hole used for injecting air into an air conditioner copper pipe in a clamping state is formed in the rear end of the body, and the air injection hole is a straight hole. The air injection hole comprises an air injection hole inlet end and an air injection hole outlet end used for stretching into a pipe opening of the clamping end of the air conditioner copper pipe. In the radius direction of the body, the outlet ends of the gas orifices are positioned on the outer sides of the inlet ends of the gas orifices; the air injection holes are obliquely formed in the circumferential direction of the body, the inlet ends of the air injection holes are communicated with the rear end of the air cavity, the air injection holes are circumferentially and uniformly distributed around the axis of the body, and the body is provided with an air cavity air inlet communicated with the air cavity; the air nozzle cylinder is used for driving the air nozzle to move along the axis direction of the air conditioner copper pipe and is in driving connection with the air nozzle. The chamfering chip removing device for the air conditioner copper pipe can effectively remove cutting chips in the air conditioner copper pipe.

Description

Technical Field

[0001] The utility model relates to the field of auxiliary devices for processing air-conditioning copper tubes, in particular to a device for removing chamfering chips from air-conditioning copper tubes. Background Art

[0002] Currently, air conditioning copper tubes are used to transport refrigerants, such as Figure 6 As shown, one end of the air-conditioning copper tube 99 is a processing end tube mouth 991, and the other end of the air-conditioning copper tube 99 is a clamping end tube mouth 992. The processing end tube mouth 991 needs to be processed to form a tube mouth chamfer 9911, and the tube mouth chamfer 9911 is an inner chamfer. The tube mouth chamfer 9911 plays a guiding role when connecting the copper tubes. However, when cutting the tube mouth chamfer 9911, small cutting chips often splash into the air-conditioning copper tube 99, which not only requires subsequent cleaning processes, but also if there are cutting chips remaining in the air-conditioning copper tube 99, it will have a negative impact on the copper tube connection and may also cause refrigeration system failure. Therefore, it is necessary to make a device that can effectively remove cutting chips from the air-conditioning copper tube. Summary of the invention

[0003] The utility model aims to overcome the deficiencies of the prior art and provides a device for removing chamfering chips from an air-conditioning copper tube, which can effectively remove cutting chips from the air-conditioning copper tube.

[0004] The purpose of the utility model is achieved through the following technical solutions.

[0005] The utility model discloses a device for removing chamfer chips of an air-conditioning copper tube chamfer, comprising an air jet nozzle, wherein the air jet nozzle comprises a body, the axis of the body extending along the front-rear direction, an air cavity being arranged in the body, a jet hole being formed at the rear end of the body for jetting air into the air-conditioning copper tube in a clamping state, the jet hole being arranged as a straight hole, the jet hole comprising an air jet hole inlet end and an air jet hole outlet end for extending into the pipe opening of the clamping end of the air-conditioning copper tube; in the radial direction of the body, the jet hole outlet end is located at the outer side of the jet hole inlet end; the jet hole is inclinedly arranged along the circumferential direction of the body, the jet hole inlet end is connected to the rear end of the air cavity, the jet holes are evenly distributed circumferentially around the axis of the body, the body is provided with an air cavity air inlet, and the air cavity air inlet is connected to the air cavity; and also comprises an air jet nozzle cylinder for driving the air jet nozzle to move along the axial direction of the air-conditioning copper tube, and the air jet nozzle cylinder is driven to connect the air jet nozzle.

[0006] Preferably, the main body is formed with an outer conical surface for abutting against the inner edge of the clamping end of the air-conditioning copper tube, and the jet hole outlet is formed on the outer conical surface.

[0007] Preferably, the front end of the air cavity is arranged to pass through the front end of the body, and the air nozzle further comprises a sealing plate for closing the air cavity, and the sealing plate is welded to the front end of the body.

[0008] Preferably, the air nozzle cylinder is configured as a double-rod cylinder, and the air nozzle cylinder comprises a push plate, and the sealing plate is mounted on the push plate.

[0009] Preferably, the axis of the air cavity air inlet is perpendicular to the axis of the body, and the air cavity air inlet is threadedly connected with a pneumatic joint.

[0010] Compared with the prior art, the utility model has the following beneficial effects: an air jet nozzle is provided, including a main body, a rear end of the main body is formed with an air jet hole for jetting air into the air-conditioning copper tube in a clamped state, the air jet hole includes an air jet hole inlet end and an air jet hole outlet end for extending into the tube opening of the clamping end of the air-conditioning copper tube; in the radial direction of the main body, the air jet hole outlet end is located outside the air jet hole inlet end; the air jet hole is inclinedly arranged along the circumferential direction of the main body, the air jet hole is evenly distributed around the axis of the main body, the air jet nozzle cylinder drives the air jet nozzle, so that the air jet nozzle can form a spiral airflow to flush the inner wall of the air-conditioning copper tube, thereby effectively removing the cutting chips in the air-conditioning copper tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a top view structural schematic diagram of the combination of the chamfering chip removal device and the chamfering processing device of the air conditioner copper tube of the utility model.

[0012] Figure 2 It is a schematic diagram of the cross-sectional structure of the air nozzle and the air conditioning copper tube combination of the utility model in the top view direction.

[0013] Figure 3 This is a schematic diagram of the clamping structure of the air conditioner copper tube.

[0014] Figure 4 It is a schematic cross-sectional structure diagram of the main body of the air jet nozzle of the utility model.

[0015] Figure 5 It is a structural schematic diagram of the air jet nozzle of the utility model in the axial observation direction.

[0016] Figure 6 This is a schematic diagram of the cross-sectional structure of the air conditioning copper tube.

[0017] Explanation of reference numerals: air nozzle 1; body 10; outer conical surface 101; air cavity air inlet 102; air cavity 11; air jet hole 12; air jet hole inlet end 121; air jet hole outlet end 122; sealing plate 13; pneumatic joint 3; air nozzle cylinder 4; push plate 41; workpiece support block 95; positioning chuck 96; positioning chuck cylinder 961; movable chuck 97; movable chuck cylinder 971; electric spindle 98; tool clamp 981; chamfering tool 982; air conditioning copper tube 99; processing end pipe mouth 991; pipe mouth chamfering 9911; clamping end pipe mouth 992. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings.

[0019] The utility model provides a device for removing chamfering chips from an air-conditioning copper tube. Figure 1 and Figure 2 As shown, the air nozzle 1 includes a body 10, the axis of the body 10 extends in the front-to-back direction, an air cavity 11 is provided in the body 10, and an air hole 12 for spraying air into the air-conditioning copper tube 99 in the clamping state is formed at the rear end of the body 10. The air hole 12 is set as a straight hole, which is conducive to reducing wind resistance. Figure 2 and Figure 4 As shown, the jet hole 12 includes a jet hole inlet end 121 and a jet hole outlet end 122 for extending into the clamping end tube opening 992 of the air conditioning copper tube 99. As described above, since the jet hole 12 is used to spray air into the air conditioning copper tube 99 in the clamping state, that is, the jet hole 12 is set to spray air backwards, such as Figure 4 and Figure 5 As shown, in the radial direction of the body 10, the jet hole outlet end 122 is located outside the jet hole inlet end 121, so the jet hole 12 is set to spray from the inside to the outside, so that the jet hole 12 forms an acute angle with the axis of the body 10 (that is, Figure 4 The angle dimension "X" in the figure means that the axis of the jet hole 12 is inclined relative to the axis of the body 10; Figure 5 As shown, the jet hole 12 is inclined along the circumferential direction of the body 10, that is, the projection of the axis of the jet hole 12 along the axis direction of the body 10 forms an angle greater than 0 degrees and less than 90 degrees with the radius of the body 10; Figure 2 and Figure 4 As shown, the jet hole inlet end 121 is connected to the rear end of the air cavity 11, as shown in FIG. Figure 5 As shown, the jet holes 12 are evenly distributed around the axis of the body 10, and the number of the jet holes 12 is preferably three or four. If the number of the jet holes 12 is too large, the jet impulse will be insufficient; Figure 2 and Figure 4 As shown, the body 10 is provided with an air cavity air inlet 102, and the air cavity air inlet 102 is connected to the air cavity 11; Figure 1As shown, the chamfering chip removal device for air-conditioning copper tubes of the utility model also includes an air nozzle cylinder 4 for driving the air nozzle 1 to move along the axial direction of the air-conditioning copper tube 99 , and the air nozzle cylinder 4 drives and connects the air nozzle 1 , specifically, the piston rod of the air nozzle cylinder 4 is connected to the air nozzle 1 .

[0020] The following briefly describes the working principle of the air conditioner copper tube chamfering chip removal device of the utility model: Figure 1 As shown, the chamfering device is used to form a chamfer 9911 at the inner edge of the processing end of the air-conditioning copper tube 99. Specifically, the chamfering device includes a positioning chuck 96 and a positioning chuck cylinder 961. The positioning chuck cylinder 961 drives the positioning chuck 96 to move left and right. The chamfering device includes a movable chuck 97 and a movable chuck cylinder 971. The movable chuck cylinder 971 drives the movable chuck 97 to move left and right. Among them, the positioning chuck cylinder 961 uses an adjustable stroke cylinder. The chamfering device includes an electric spindle 98. The electric spindle 98 is provided with a tool clamp 981. The tool clamp 981 clamps a chamfering tool 982. Before clamping the air-conditioning copper tube 99 workpiece, the positioning chuck 96 and the movable chuck 97 are opened relatively to each other. Figure 3 As shown, the air-conditioning copper tube 99 is placed on the workpiece support block 95 of the chamfering processing device by hand or a robot, and then the positioning chuck cylinder 961 drives the positioning chuck 96 to move to the left to the limit position and maintains pressure. At the same time, the movable chuck cylinder 971 drives the movable chuck 97 to move to the right to clamp the air-conditioning copper tube 99. The thrust of the movable chuck cylinder 971 is set to be significantly smaller than the thrust of the positioning chuck cylinder 961, so that the movable chuck cylinder 971 can avoid pushing the positioning chuck 96, thereby positioning the air-conditioning copper tube 99 at the processing position. Figure 1As shown, the electric spindle 98 moves forward in a straight line, so the chamfering cutter 982 also moves forward, and the chamfering cutter 982 rotates to cut the processing end tube mouth 991 of the air-conditioning copper tube 99, thereby forming the tube mouth chamfer 9911, and then the electric spindle 98 moves backward; the air-conditioning copper tube 99 remains in the clamping state, and the air nozzle cylinder 4 drives the air nozzle 1 to move backward along the axis of the air-conditioning copper tube 99, so that the outlet end 122 of the air jet hole extends into the tube mouth 992 of the clamping end of the air-conditioning copper tube 99, and then compressed air is input into the air inlet 102 of the air cavity, and the air cavity 11 is filled with compressed air, so that the air jet hole 12 sprays air outward and backward, so that the air jet hole 12 sprays air toward the inner wall of the tube mouth 992 of the clamping end of the air-conditioning copper tube 99, and because the air jet hole 12 is along the body 1 0 is inclined in the circumferential direction and the jet holes 12 are evenly distributed around the axis of the body 10, so the jet nozzle 1 forms a spiral airflow in the air-conditioning copper tube 99, so the spiral airflow scours the inner wall of the air-conditioning copper tube 99, that is, the spiral airflow can clean the inner wall of the air-conditioning copper tube 99 all around, avoiding the inner wall of the air-conditioning copper tube 99 where the airflow scouring force is obviously weak, thereby discharging the cuttings generated in the air-conditioning copper tube 99 due to the processing of the pipe mouth chamfer 9911 to the outside of the air-conditioning copper tube 99, specifically, the spiral airflow and the cuttings are discharged through the processing end pipe mouth 991, thereby effectively removing the cuttings in the air-conditioning copper tube, and the airflow scouring time can be set to 1 second to 3 seconds, after which the jet nozzle cylinder 4 drives the jet nozzle 1 to move forward and reset. Since the airflow ejected from the jet nozzle 1 is discharged through the processing end pipe mouth 991, the airflow can also blow away the cuttings on the chamfering cutter 982, avoiding the cuttings on the chamfering cutter 982 affecting the processing of the next air-conditioning copper tube 99. The angle dimension "X" is preferably set to 5° to 15°. If the angle dimension "X" is set too small, the flushing force on the inner wall of the air-conditioning copper tube 99 will be insufficient. If the angle dimension "X" is set too large, the backward pushing force of the airflow will be insufficient.

[0021] Furthermore, if Figure 2 and Figure 4 As shown, the main body 10 is formed with an outer conical surface 101 for abutting against the inner edge of the clamping end pipe mouth 992 of the air-conditioning copper tube 99, and the jet hole outlet end 122 is formed on the outer conical surface 101, so the jet nozzle cylinder 4 drives the outer conical surface 101 to be inserted into the clamping end pipe mouth 992, so that the jet hole outlet end 122 extends into the clamping end pipe mouth 992, and then the outer conical surface 101 contacts the inner edge of the clamping end pipe mouth 992, thereby achieving a sealing effect, preventing the jet nozzle 1 from jetting to flush the inner wall of the air-conditioning copper tube 99, and preventing the outside air from being sucked into the air-conditioning copper tube 99 from the clamping end pipe mouth 992, thereby preventing the outside debris from being sucked into the air-conditioning copper tube 99.

[0022] Furthermore, if Figure 4 As shown, the front end of the air cavity 11 is arranged through the front end of the body 10. Figure 2As shown, the air nozzle 1 also includes a sealing plate 13 for sealing the air cavity 11. The sealing plate 13 is welded to the front end of the main body 10, that is, the sealing plate 13 seals the opening of the air cavity 11 that passes through the main body 10. Through the above arrangement, the air cavity 11 can be formed by turning tool processing, which is beneficial to reducing the difficulty of manufacturing the air nozzle 1.

[0023] Furthermore, if Figure 1 As shown, the nozzle cylinder 4 is configured as a double-rod cylinder, and the nozzle cylinder 4 includes a push plate 41, which is relatively fixed to the end of the piston rod of the nozzle cylinder 4, and the sealing plate 13 is mounted on the push plate 41 by screws. Thus, the structure is simple, so that the nozzle 1 is fixed on the piston rod of the nozzle cylinder 4, and the push plate 41 of the double-rod cylinder can move linearly with high rigidity, avoiding the need to set up a linear guide rail separately, which is conducive to reducing costs.

[0024] Furthermore, if Figure 2 and Figure 4 As shown, the axis of the air cavity air inlet 102 is perpendicular to the axis of the main body 10, and the air cavity air inlet 102 is threaded with the pneumatic connector 3, that is, the air cavity air inlet 102 can be formed on the cylindrical surface of the main body 10, thereby avoiding interference between the pneumatic connector 3 and the push plate 41, and the pneumatic connector 3 is used to connect the soft air tube.

Claims

1. An air conditioner copper tube chamfering chip removal device, characterized in that: The invention comprises an air jet nozzle (1), wherein the air jet nozzle (1) comprises a body (10), wherein the axis of the body (10) extends in the front-rear direction, wherein an air cavity (11) is provided in the body (10), and wherein a jet hole (12) for jetting into an air-conditioning copper tube (99) in a clamped state is formed at the rear end of the body (10), wherein the jet hole (12) is provided as a straight hole, and wherein the jet hole (12) comprises an jet hole inlet end (121) and an jet hole outlet end (122) for extending into a pipe opening (992) at a clamped end of the air-conditioning copper tube (99); in the radial direction of the body (10), the jet hole outlet end (122) The air-injection device (10) is located outside the air-injection hole inlet end (121); the air-injection hole (12) is arranged obliquely along the circumferential direction of the body (10); the air-injection hole inlet end (121) is connected to the rear end of the air cavity (11); the air-injection holes (12) are evenly distributed around the axis of the body (10); the body (10) is provided with an air cavity air inlet (102); the air cavity air inlet (102) is connected to the air cavity (11); and the air-injection nozzle cylinder (4) is used to drive the air-injection nozzle (1) to move along the axial direction of the air-conditioning copper tube (99); the air-injection nozzle cylinder (4) is driven to connect to the air-injection nozzle (1).

2. The device for removing chamfering chips from an air-conditioning copper tube according to claim 1, characterized in that: The body (10) is formed with an outer conical surface (101) for abutting against the inner edge of a clamping end tube opening (992) of an air-conditioning copper tube (99), and the jet hole outlet end (122) is formed on the outer conical surface (101).

3. The device for removing chamfering chips from an air conditioner copper tube according to claim 1, characterized in that: The front end of the air cavity (11) is arranged to pass through the front end of the body (10), and the air nozzle (1) also includes a sealing plate (13) for closing the air cavity (11), and the sealing plate (13) is welded to the front end of the body (10).

4. The device for removing chamfering chips from an air conditioner copper tube according to claim 3, characterized in that: The air nozzle cylinder (4) is configured as a double-rod cylinder, and the air nozzle cylinder (4) comprises a push plate (41), and the sealing plate (13) is mounted on the push plate (41).

5. The device for removing chamfering chips from an air conditioner copper tube according to claim 4, characterized in that: The axis of the air cavity air inlet (102) is perpendicular to the axis of the body (10), and the air cavity air inlet (102) is threadedly connected with a pneumatic joint (3).

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