Special processing equipment for reducing eccentric tee joint and processing technology thereof

Abstract

The invention relates to the technical field of different-diameter eccentric tee joint machining, in particular to special machining equipment for a different-diameter eccentric tee joint and a machining technology of the different-diameter eccentric tee joint. A cutting mechanism, a first machining mechanism, a second machining mechanism and a third machining mechanism are sequentially arranged in the conveying direction of the workpiece, the cutting mechanism is used for cutting the workpiece, the first machining mechanism is used for machining the inner wall and the outer wall of two coplanar pipe openings of the different-diameter eccentric tee joint, and the second machining mechanism is used for machining the inner wall and the outer wall of a third pipe opening of the different-diameter eccentric tee joint. The third machining mechanism is used for conducting rounding treatment on the connecting positions of the two coplanar pipe openings of the different-diameter eccentric tee joint and the inner wall and the outer wall of the third pipe opening. Through the arrangement of the third machining mechanism, the connecting positions of the two coplanar pipe openings of the reducing eccentric tee joint and the inner wall and the outer wall of the third pipe opening can be subjected to rounding treatment, and the service life of the whole reducing eccentric tee joint can be prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of machining a reducing eccentric tee, in particular to special machining equipment and a machining process of a reducing eccentric tee. Background Art

[0002] The eccentric tee with different diameters is composed of three pipe openings with different pipe diameters, among which: two pipe openings have the same diameter and are located in the same plane, and the other pipe opening deviates from this plane, and its diameter may be larger or smaller than the diameters of the two pipe openings, thus forming a tee with different diameters and eccentricity. It is widely used in residential hot and cold water pipe systems, industrial water use, and chemical substance transportation.

[0003] At present, in the processing of the reducing eccentric tee, the connection between the two coplanar pipe openings and the inner and outer walls of the third pipe opening is not chamfered, and the connection between the two coplanar pipe openings and the inner and outer walls of the third pipe opening is not smoothly transitioned. This will affect the structural strength of the connection between the two coplanar pipe openings and the inner and outer walls of the third pipe opening, and further affect the service life of the reducing eccentric tee. At the same time, when in use, it will affect the flow speed of water at the connection between the two coplanar pipe openings and the inner wall of the third pipe opening. Summary of the invention

[0004] In view of the shortcomings in the above-mentioned existing production technology, the applicant provides a special processing equipment and processing of a reducing eccentric tee. By improving the structure of the reducing eccentric tee, the connection between the two coplanar pipe openings and the inner and outer walls of the third pipe opening can be chamfered to increase the service life of the entire reducing eccentric tee and increase the flow rate of water at the connection between the two coplanar pipe openings and the inner wall of the third pipe opening.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A special processing equipment for a reducing eccentric tee, comprising: a fixed seat, a conveying track, a workbench, a cutting mechanism, a first processing mechanism, a second processing mechanism and a third processing mechanism are arranged on the fixed seat beside the conveying track in sequence along the workpiece conveying direction, the workbench is installed on the conveying track, the conveying track is installed on the fixed seat, the workbench is used to carry the workpiece, the conveying track is used to convey the workpiece, the cutting mechanism is used to cut the workpiece, the first processing mechanism is used to process the inner and outer walls of two coplanar pipe openings of the reducing eccentric tee, the second processing mechanism is used to process the inner and outer walls of the third pipe opening of the reducing eccentric tee, and the third processing mechanism is used to round the connection between the two coplanar pipe openings of the reducing eccentric tee and the inner and outer walls of the third pipe opening.

[0007] Therefore, through the setting of the third processing mechanism, the connection between the two coplanar pipe openings of the reducing eccentric tee and the inner and outer walls of the third pipe opening can be chamfered. Compared with the existing reducing eccentric tees that have not been chamfered, the connection between the two coplanar pipe openings and the inner and outer walls of the third pipe opening of the reducing eccentric tee after the chamfering treatment is smooth, which can improve the structural strength of the connection between the two coplanar pipe openings of the reducing eccentric tee and the inner and outer walls of the third pipe opening, so as to improve the service life of the entire reducing eccentric tee. At the same time, when in use, due to the smooth transition of the connection between the two coplanar pipe openings of the reducing eccentric tee and the inner wall of the third pipe opening, the flow rate of water at the connection between the two coplanar pipe openings and the inner wall of the third pipe opening can be improved.

[0008] As a further improvement of the above technical solution: the third processing mechanism includes: a first driving member and a first cutting tool, the first driving member is installed on the fixed seat, and the first cutting tool is installed at the driving end of the first driving member. Therefore, the rounding of the connection between the two coplanar pipe openings and the inner and outer walls of the third pipe opening can be simultaneously met by a set of third processing mechanisms, which can reduce the number of parts of the entire special processing equipment, thereby reducing the production cost of the entire special processing equipment.

[0009] As a further improvement of the above technical solution: the first processing mechanism has the same structure as the second processing mechanism; the first processing mechanism includes: a second driving member, a third driving member, an inner wall extrusion member, an outer wall processing member and a surplus cutting member, the second driving member is connected to the fixed seat, the third driving member is connected to the driving end of the second driving member, the inner wall extrusion member, the outer wall processing member and the surplus cutting member are all connected to the driving end of the third driving member; the second driving member is used to drive the inner wall extrusion member or the outer wall processing member to move along the axial direction of the two coplanar pipe openings of the different-diameter eccentric tee or the axial direction of the third pipe opening, and the second driving member is also used to drive the surplus The measuring cutting piece moves along the axis direction of the two coplanar pipe openings of the reducing eccentric tee, the third driving piece is used to drive the inner wall extrusion piece or the outer wall processing piece to rotate along the axis direction of the two coplanar pipe openings of the reducing eccentric tee or the axis direction of the third pipe opening, the third driving piece is also used to drive the excess cutting piece to rotate along the axis direction of the two coplanar pipe openings of the reducing eccentric tee, the inner wall extrusion piece is used to extrude the reducing eccentric tee material to extrude the inner wall of the two coplanar pipe openings or the inner wall of the third pipe opening, the outer wall processing piece is used to process the outer wall of the two coplanar pipe openings of the reducing eccentric tee or the outer wall of the third pipe opening, and the excess cutting piece is used to cut the excess material of the reducing eccentric tee. Thus, the inner and outer walls of the two coplanar pipe openings of the reducing eccentric tee are processed by the first processing mechanism, and the inner and outer walls of the third pipe opening of the reducing eccentric tee are processed by the second processing mechanism.

[0010] As a further improvement of the above technical solution: the cutting mechanism includes: a fourth driving member and a second cutting tool, the fourth driving member is installed on the fixed seat, and the second cutting tool is installed at the driving end of the fourth driving member.

[0011] As a further improvement of the above technical solution: it also includes: two clamping mechanisms, the two clamping mechanisms are respectively located on both sides of the workbench, the clamping mechanisms are used to clamp the workpiece carried on the workbench, the clamping mechanisms include: a fifth driving member and a clamping block, the fifth driving member is installed on the workbench through a second support member, and the driving end of the clamping block is connected to the fifth driving member. Thus, the workpiece can be clamped and fixed by the two clamping blocks to ensure that the workpiece remains stable relative to the workbench, and the workpiece will not shake on the workbench, so as to improve the processing accuracy of the different-diameter eccentric tee.

[0012] A processing technology of a special processing equipment for a reducing eccentric tee, comprising the following steps:

[0013] S1, firstly extrude the reducing eccentric tee through a die to form a blank of the reducing eccentric tee, then place the blank of the reducing eccentric tee on a workbench, and transport the blank to a processing area of ​​a cutting mechanism through a conveying track, and cut the blank through the cutting mechanism to form a primary workpiece of the reducing eccentric tee;

[0014] S2, transporting the primary workpiece in S1 to the processing area of ​​the first processing mechanism through the conveying track, and processing the inner and outer walls of the two coplanar nozzles of the primary workpiece through the first processing mechanism to form a secondary workpiece;

[0015] S3, transporting the secondary workpiece in S2 to the processing area of ​​the second processing mechanism through the conveying track, and processing the inner and outer walls of the third pipe opening of the secondary workpiece through the second processing mechanism to form a tertiary workpiece;

[0016] S4, transporting the third-level workpiece in S3 to the processing area of ​​the third processing mechanism through the conveying track, and controlling the third processing mechanism to move along the first trajectory line and the second trajectory line together, so as to perform chamfering on the outer wall of the two coplanar nozzles of the third-level workpiece and the third nozzle, so as to form a fourth-level workpiece;

[0017] S5, extending the third processing mechanism into the interior of the fourth-level workpiece in S4, and controlling the third processing mechanism to move along the third trajectory line and the fourth trajectory line together, so as to perform chamfering processing on the inner wall of the two coplanar nozzles and the third nozzle of the fourth-level workpiece, so as to form a fifth-level workpiece;

[0018] S6, transporting the fifth-level workpiece in S5 to the processing area of ​​the first processing mechanism, and using the first processing mechanism to cut off the excess material on the outer walls of the two coplanar nozzles of the fifth-level workpiece to form a sixth-level workpiece;

[0019] S7, removing the sixth-level workpiece in S6 from the workbench, and sequentially performing heat treatment, shot blasting, polishing and heat treatment to form a reducing eccentric tee.

[0020] As a further improvement of the above technical solution: S4 comprises the following steps:

[0021] S4-1, transporting the tertiary workpiece in S3 to the processing area of ​​the third processing mechanism through the conveying track, and controlling the third processing mechanism to move along the first trajectory line and the fifth trajectory line together, and processing the outer wall of the two coplanar nozzles and the third nozzle of the tertiary workpiece with a processing depth of L1;

[0022] S4-2, transporting the tertiary workpiece in S3 to the processing area of ​​the third processing mechanism through the conveying track, and controlling the third processing mechanism to move along the first trajectory line and the sixth trajectory line together, and processing the outer wall of the two coplanar nozzles and the third nozzle of the tertiary workpiece with a processing depth of L2;

[0023] S4-3, transporting the third-level workpiece in S3 to the processing area of ​​the third processing mechanism through the conveying track, and controlling the third processing mechanism to move along the first trajectory line and the seventh trajectory line together, processing the two coplanar nozzles of the third-level workpiece and the outer wall of the third nozzle with a processing depth of L3 to form a fourth-level workpiece;

[0024] L1>L2>L3. Thus, the gradual processing of the outer wall chamfer can avoid damage to the material caused by the one-time chamfering forming, so as to improve the accuracy of the chamfering processing. At the same time, the processing depth is gradually reduced, which further improves the accuracy of the chamfering processing.

[0025] As a further improvement of the above technical solution: S5 comprises the following steps:

[0026] S5-1, extending the third processing mechanism into the interior of the fourth-level workpiece S4, and controlling the third processing mechanism to move along the third trajectory line and the eighth trajectory line together, processing the inner wall of the two coplanar nozzles and the third nozzle of the fourth-level workpiece at a processing depth of L4;

[0027] S5-2, controlling the third processing mechanism to move along the third trajectory line and the ninth trajectory line together, and processing the inner wall of the two coplanar nozzles and the third nozzle of the fourth-level workpiece at a processing depth of L5;

[0028] S5-3, controlling the third processing mechanism to move along the third trajectory line and the tenth trajectory line together, so as to process the two coplanar nozzles of the fourth-level workpiece and the inner wall of the third nozzle, so as to form a fifth-level workpiece;

[0029] L4>L5. Thus, the gradual processing of the inner wall chamfer can avoid the damage to the material caused by the one-time chamfer forming, so as to improve the accuracy of the chamfer processing. At the same time, the processing depth is gradually reduced, which further improves the accuracy of the chamfer processing.

[0030] As a further improvement of the above technical solution: in S4, the first trajectory line refers to: the intersection line of the outer walls of the two coplanar nozzles and the outer wall of the third nozzle; the second trajectory line includes: the fifth trajectory line, the sixth trajectory line and the seventh trajectory line, and the fifth trajectory line, the sixth trajectory line and the seventh trajectory line are all arc-shaped; the first trajectory line and the second trajectory line move together, which means that the first cutting tool needs to rotate along the first trajectory line and around the third-level workpiece, and at the same time, in each cutting surface, the first cutting tool needs to move along the fifth trajectory line, the sixth trajectory line or the seventh trajectory line. Therefore, each rounding process trajectory of the outer wall is an arc line to ensure that the first cutting tool will not damage the outer walls of the two coplanar nozzles and the third nozzle.

[0031] As a further improvement of the above technical solution: in S5, the third trajectory line refers to: the intersection line of the two coplanar nozzle inner walls and the third nozzle inner wall; the fourth trajectory line includes: the eighth trajectory line, the ninth trajectory line and the tenth trajectory line, the eighth trajectory line and the ninth trajectory line are straight lines, and the tenth trajectory line is an arc line; the third trajectory line and the fourth trajectory line move together means that: the first cutting tool needs to rotate along the third trajectory line and around the fourth-level workpiece, and at the same time, in each cutting surface, the first cutting tool needs to move along the eighth trajectory line, the ninth trajectory line and the tenth trajectory line. Therefore, the trajectories of the first two rounding processes of the inner wall are straight lines to improve the processing speed of the rounding, and the trajectory of the last rounding process is an arc line to ensure a smooth transition at the connection between the two coplanar nozzle inner walls and the third nozzle inner wall.

[0032] The beneficial effects of the present invention are as follows:

[0033] Through the setting of the third processing mechanism, the connection between the two coplanar pipe openings of the reducing eccentric tee and the inner and outer walls of the third pipe opening can be chamfered. Compared with the existing reducing eccentric tees that have not been chamfered, the connection between the two coplanar pipe openings and the inner and outer walls of the third pipe opening of the reducing eccentric tee after the chamfering treatment is smooth, which can improve the structural strength of the connection between the two coplanar pipe openings of the reducing eccentric tee and the inner and outer walls of the third pipe opening, so as to improve the service life of the entire reducing eccentric tee. At the same time, when in use, due to the smooth transition of the connection between the two coplanar pipe openings of the reducing eccentric tee and the inner wall of the third pipe opening, the flow rate of water at the connection between the two coplanar pipe openings and the inner wall of the third pipe opening can be improved.

[0034] The present invention also includes the following advantages:

[0035] 1. The present invention can simultaneously meet the requirements of the chamfering treatment at the connection between the two coplanar pipe openings and the inner and outer walls of the third pipe opening through a set of third processing mechanisms, which can reduce the parts of the entire special processing equipment and reduce the production cost of the entire special processing equipment.

[0036] 2. The gradual processing of the inner and outer wall rounding of the present invention can avoid damage to the material caused by the rounding molding in one time, so as to improve the accuracy of the rounding processing. At the same time, the processing depth is gradually reduced, which further improves the accuracy of the rounding processing.

[0037] 3. In the present invention, each chamfering trajectory of the outer wall is an arc line to ensure that the first cutting tool will not damage the outer walls of the two coplanar pipe openings and the third pipe opening; the trajectories of the first two chamfering processes on the inner wall are straight lines to increase the processing speed of chamfering, and the trajectory of the last chamfering process is an arc line to ensure a smooth transition at the connection between the inner walls of the two coplanar pipe openings and the inner wall of the third pipe opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a structural schematic diagram of a special processing equipment for a reducing eccentric tee of the present invention;

[0039] Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged local structure at center A;

[0040] Figure 3 For the present invention Figure 1 A magnified schematic diagram of the local structure at B in the middle;

[0041] Figure 4 It is a structural schematic diagram of the third processing mechanism of the present invention;

[0042] Figure 5 It is a structural schematic diagram of the first processing mechanism of the present invention;

[0043] Figure 6It is a structural schematic diagram of the second processing mechanism of the present invention;

[0044] Figure 7 It is a schematic structural diagram of two coplanar nozzle outer wall processing parts of the present invention;

[0045] Figure 8 It is a structural schematic diagram of the third pipe orifice outer wall processing part of the present invention;

[0046] Fig. 9 It is a structural schematic diagram of the excess cutting piece of the present invention;

[0047] Fig.10 It is a structural schematic diagram of the installation of the workbench and the clamping mechanism of the present invention;

[0048] Fig.11 It is a flow chart of the processing technology of the special processing equipment for the reducing eccentric tee of the present invention;

[0049] Fig.12 This is a processing effect diagram of a reducing eccentric tee according to the present invention;

[0050] Fig.13 It is a cross-sectional effect diagram of the processing of the reducing eccentric tee of the present invention;

[0051] Fig.14 is a flow chart of S4 of the present invention;

[0052] Fig.15 It is a sectional front view of the fourth-level workpiece of the present invention;

[0053] Fig.16 For the present invention Fig.15 A magnified schematic diagram of the local structure at C in the middle;

[0054] Fig.17 is a flow chart of S5 of the present invention;

[0055] Fig.18 It is a sectional front view of a five-level workpiece of the present invention;

[0056] Fig.19 For the present invention Fig.18 The enlarged schematic diagram of the local structure at D in the middle;

[0057] Fig. 20 It is a structural schematic diagram of a reducing eccentric tee of the present invention;

[0058] Fig.21 It is a cross-sectional view of the reducing eccentric tee of the present invention.

[0059] Among them: 1. Fixed seat;

[0060] 2. Conveyor track;

[0061] 3. Workbench;

[0062] 4. Cutting mechanism;

[0063] 401, fourth driving member; 402, second cutting tool;

[0064] 5. The first processing mechanism;

[0065] 501, second driving member; 502, third driving member; 503, inner wall extrusion member; 504, outer wall processing member; 505, excess cutting member; 506, first supporting member;

[0066] 6. Second processing organization;

[0067] 7. Third processing organization;

[0068] 701, a first driving member; 702, a first cutting tool;

[0069] 8. Clamping mechanism;

[0070] 801. A fifth driving member; 802. A clamping block; 803. A second supporting member. DETAILED DESCRIPTION

[0071] The specific implementation of the present invention will be described below in conjunction with the accompanying drawings.

[0072] like Figures 1 to 10 As shown, a special processing equipment for a reducing eccentric tee comprises: a fixed seat 1, a conveying track 2, a workbench 3, and a fixed seat 1 located next to the conveying track 2, and a cutting mechanism 4, a first processing mechanism 5, a second processing mechanism 6 and a third processing mechanism 7 are sequentially arranged along the workpiece conveying direction, the workbench 3 is installed on the conveying track 2, and the conveying track 2 is installed on the fixed seat 1, the workbench 3 is used to carry the workpiece, the conveying track 2 is used to convey the workpiece, the cutting mechanism 4 is used to cut the workpiece, the first processing mechanism 5 is used to process the inner and outer walls of the two coplanar pipe openings of the reducing eccentric tee, the second processing mechanism 6 is used to process the inner and outer walls of the third pipe opening of the reducing eccentric tee, and the third processing mechanism 7 is used to round the connection between the two coplanar pipe openings of the reducing eccentric tee and the inner and outer walls of the third pipe opening. Therefore, through the setting of the third processing mechanism 7, the connection between the two coplanar pipe openings of the reducing eccentric tee and the inner and outer walls of the third pipe opening can be chamfered. Compared with the existing reducing eccentric tees that have not been chamfered, the connection between the two coplanar pipe openings and the inner and outer walls of the third pipe opening of the reducing eccentric tee after the chamfering treatment is smooth, which can improve the structural strength of the connection between the two coplanar pipe openings of the reducing eccentric tee and the inner and outer walls of the third pipe opening, so as to improve the service life of the entire reducing eccentric tee. At the same time, when in use, due to the smooth transition of the connection between the two coplanar pipe openings of the reducing eccentric tee and the inner wall of the third pipe opening, the flow rate of water at the connection between the two coplanar pipe openings and the inner wall of the third pipe opening can be improved.

[0073] In this embodiment, the third processing mechanism 7 includes: a first driving member 701 and a first cutting tool 702, wherein the first driving member 701 is mounted on the fixing seat 1, and the first cutting tool 702 is mounted on the driving end of the first driving member 701. Thus, a set of the third processing mechanism 7 can simultaneously meet the requirements of the rounding process at the connection between the two coplanar nozzles and the inner and outer walls of the third nozzle, thereby reducing the parts of the entire special processing equipment and reducing the production cost of the entire special processing equipment.

[0074] Specifically, when the outer wall is rounded, the entire third processing mechanism 7 is located outside the workpiece; when the inner wall is rounded, the first driving member 701 and the first cutting tool 702 are both extended into the interior of the workpiece.

[0075] For example, the first driving member 701 is a six-degree-of-freedom robot.

[0076] In this embodiment, the first processing mechanism 5 and the second processing mechanism 6 have the same structure; the first processing mechanism 5 includes: a second driving member 501, a third driving member 502, an inner wall extrusion member 503, an outer wall processing member 504 and a surplus cutting member 505, the second driving member 501 is connected to the fixed seat 1, the third driving member 502 is connected to the driving end of the second driving member 501, the inner wall extrusion member 503, the outer wall processing member 504, and the surplus cutting member 505 are all connected to the driving end of the third driving member 502; the second driving member 501 is used to drive the inner wall extrusion member 503 or the outer wall processing member 504 to move along the axial direction of the two coplanar pipe openings of the different-diameter eccentric tee or the axial direction of the third pipe opening, and the second driving member 5 01 is also used to drive the excess cutting piece 505 to move along the axial direction of the two coplanar pipe openings of the reducing eccentric tee, the third driving piece 502 is used to drive the inner wall extrusion piece 503 or the outer wall processing piece 504 to rotate along the axial direction of the two coplanar pipe openings of the reducing eccentric tee or the axial direction of the third pipe opening, the third driving piece 502 is also used to drive the excess cutting piece 505 to rotate along the axial direction of the two coplanar pipe openings of the reducing eccentric tee, the inner wall extrusion piece 503 is used to extrude the reducing eccentric tee material to extrude the inner wall of the two coplanar pipe openings or the inner wall of the third pipe opening, the outer wall processing piece 504 is used to process the outer wall of the two coplanar pipe openings of the reducing eccentric tee or the outer wall of the third pipe opening, the excess cutting piece 505 (such as Fig. 9 As shown in FIG. 1 , the inner and outer walls of the two coplanar pipe openings of the eccentric tee are processed by the first processing mechanism 5 , and the inner and outer walls of the third pipe opening of the eccentric tee are processed by the second processing mechanism 6 .

[0077] Specifically, in the first processing mechanism 5, the second driving member 501 is connected to the fixed seat 1 through the first supporting member 506; in the second processing mechanism 6, two second driving members 501 are provided, both of which are connected to the fixed seat 1, and the telescopic ends of the two second driving members 501 are connected to the third driving member 502 through the first supporting member 506.

[0078] It should be noted that:

[0079] 1. The inner wall extrusion member 503 includes: A inner wall extrusion member 503 (such as Figure 5 As shown) and B inner wall extrusion 503 (as Figure 6 As shown), the inner wall extrusion piece 503 A is used for processing the inner walls of the two coplanar pipe openings of the reducing eccentric tee, the inner wall extrusion piece 503 B is used for processing the inner wall of the third pipe opening of the reducing eccentric tee, and the outer wall processing piece 504 includes: A outer wall processing piece 504 (as shown Figure 7 As shown) and B outer wall processing part 504 (as shown Figure 8 As shown), the A outer wall processing part 504 is used for processing the outer walls of the two coplanar pipe openings of the reducing eccentric tee, and the B outer wall processing part 504 is used for processing the outer wall of the third pipe opening of the reducing eccentric tee;

[0080] 2. The inner wall extrusion part 503, the outer wall processing part 504 and the driving end of the third driving part 502 are detachably connected by bolts. When in use, different processing parts can be used according to different processing parts of the reducing eccentric tee. In this way, by utilizing the detachable connection method, in the production process of the special processing equipment, only different processing parts need to be designed for different processing parts, without the need to design multiple sets of driving mechanisms. In this way, the production cost of the entire special processing equipment can be further reduced.

[0081] For example, the second driving member 501 is a cylinder, and the third driving member 502 is a motor.

[0082] In this embodiment, the cutting mechanism 4 includes: a fourth driving member 401 and a second cutting tool 402. The fourth driving member 401 is mounted on the fixing seat 1, and the second cutting tool 402 is mounted on the driving end of the fourth driving member 401. For example, the fourth driving member 401 is a six-degree-of-freedom robot.

[0083] In this embodiment, it also includes: two clamping mechanisms 8, which are respectively located on both sides of the workbench 3. The clamping mechanisms 8 are used to clamp the workpiece carried on the workbench 3. The clamping mechanisms 8 include: a fifth driving member 801 and a clamping block 802. The fifth driving member 801 is installed on the workbench 3 through a second supporting member 803, and the driving end of the clamping block 802 is connected to the fifth driving member 801. Thus, the workpiece can be clamped and fixed by the two clamping blocks 802 to ensure that the workpiece remains stable relative to the workbench 3, and the workpiece will not shake on the workbench 3, so as to improve the processing accuracy of the different-diameter eccentric tee.

[0084] For example, the fifth driving member 801 is a cylinder.

[0085] like Figures 11 to 21 As shown, a processing technology of a special processing equipment for a reducing eccentric tee includes the following steps:

[0086] S1, firstly extrude the eccentric tee with different diameters through a die to form a blank of the eccentric tee with different diameters, then place the blank of the eccentric tee with different diameters on a workbench 3, and transport the blank to a processing area of ​​a cutting mechanism 4 through a conveying track 2, and cut the blank through the cutting mechanism 4 to form a primary workpiece of the eccentric tee with different diameters;

[0087] S2, transporting the primary workpiece in S1 to the processing area of ​​the first processing mechanism 5 through the conveying track 2, and processing the inner and outer walls of the two coplanar nozzles of the primary workpiece by the first processing mechanism 5 to form a secondary workpiece;

[0088] S3, conveying the secondary workpiece in S2 to the processing area of ​​the second processing mechanism 6 through the conveying track 2, and processing the inner and outer walls of the third pipe opening of the secondary workpiece by the second processing mechanism 6 to form a tertiary workpiece;

[0089] S4, transporting the third-level workpiece in S3 to the processing area of ​​the third processing mechanism 7 through the conveying track 2, and controlling the third processing mechanism 7 to move along the first trajectory line and the second trajectory line together, so as to perform chamfering on the outer wall of the two coplanar nozzles of the third-level workpiece and the third nozzle, so as to form a fourth-level workpiece;

[0090] S5, extending the third processing mechanism 7 into the interior of the fourth-level workpiece in S4, and controlling the third processing mechanism 7 to move along the third trajectory line and the fourth trajectory line together, so as to perform chamfering on the inner wall of the two coplanar nozzles and the third nozzle of the fourth-level workpiece, so as to form a fifth-level workpiece;

[0091] S6, transporting the fifth-level workpiece in S5 to the processing area of ​​the first processing mechanism 5, and removing the excess material of the outer walls of the two coplanar nozzles of the fifth-level workpiece by the first processing mechanism 5 to form a sixth-level workpiece;

[0092] S7, removing the sixth-level workpiece in S6 from the workbench 3, and sequentially performing heat treatment, shot blasting, polishing and heat treatment to form a reducing eccentric tee.

[0093] Specifically, in S2, the inner walls of the two coplanar pipe openings of the reducing eccentric tee and the inner and outer walls of the third pipe opening are processed and formed at one time, while the outer walls of the two coplanar pipe openings of the reducing eccentric tee need to be processed twice from both sides. On the one hand, it can avoid damage to the third pipe opening, and on the other hand, it can ensure that the excess material is not cut.

[0094] Specifically, in S1 to S6, the workpiece to be processed needs to be fixed by the clamping mechanism 8 to ensure that the workpiece remains stable relative to the workbench 3, thereby improving the processing quality of the workpiece.

[0095] Specifically, the purpose of S7 finally cutting off the remaining material is to ensure that during the processing of the reducing eccentric tee, the reducing eccentric tee (through the remaining material part) can always be clamped and fixed by the clamping mechanism 8. If the outer walls of the two coplanar pipe openings of the reducing eccentric tee are processed and formed at one time, the outer surface is an arc shape, and subsequent clamping and fixing are not used, which will affect the subsequent processing accuracy of the reducing eccentric tee.

[0096] Specifically, the blank refers to: any piece of material for the processing of reducing eccentric tees, the first-level workpiece refers to: a cuboid slightly larger than the reducing eccentric tee, the second-level workpiece refers to: the material for forming two coplanar pipe openings, the third-level workpiece refers to: the material for forming two coplanar pipe openings and a third pipe opening, the fourth-level workpiece refers to: the material whose corners have been chamfered at the connection between the outer walls of the two coplanar pipe openings and the outer wall of the third pipe opening, the fifth-level workpiece refers to: the material whose corners have been chamfered at the connection between the outer walls of the two coplanar pipe openings and the outer wall of the third pipe opening, and the connection between the inner walls of the two coplanar pipe openings and the inner wall of the third pipe opening, and the sixth-level workpiece refers to: the material after the excess material is cut off on the basis of the fifth-level workpiece.

[0097] In this embodiment, S4 includes the following steps:

[0098] S4-1, transporting the tertiary workpiece in S3 to the processing area of ​​the third processing mechanism 7 through the conveying track 2, and controlling the third processing mechanism 7 to move along the first trajectory line and the fifth trajectory line together, and processing the outer wall of the two coplanar nozzles and the third nozzle of the tertiary workpiece with a processing depth of L1;

[0099] S4-2, conveying the tertiary workpiece in S3 to the processing area of ​​the third processing mechanism 7 through the conveying track 2, and controlling the third processing mechanism 7 to move along the first trajectory line and the sixth trajectory line together, and processing the outer wall of the two coplanar nozzles and the third nozzle of the tertiary workpiece with a processing depth of L2;

[0100] S4-3, conveying the third-level workpiece in S3 to the processing area of ​​the third processing mechanism 7 through the conveying track 2, and controlling the third processing mechanism 7 to move along the first trajectory line and the seventh trajectory line together, processing the two coplanar nozzles of the third-level workpiece and the outer wall of the third nozzle with a processing depth of L3 to form a fourth-level workpiece;

[0101] L1>L2>L3; In S4, the first trajectory line refers to: the intersection line of the outer wall of the two coplanar nozzles and the outer wall of the third nozzle; the second trajectory line includes: the fifth trajectory line, the sixth trajectory line and the seventh trajectory line, and the fifth trajectory line, the sixth trajectory line and the seventh trajectory line are all arc-shaped; the first trajectory line and the second trajectory line move together, which means that the first cutting tool 702 needs to rotate along the first trajectory line and around the third-level workpiece, and at the same time, in each cutting surface, the first cutting tool 702 needs to move along the fifth trajectory line, the sixth trajectory line or the seventh trajectory line. Thus, the gradual processing of the outer wall chamfer can avoid the damage to the material caused by the one-time chamfering forming, so as to improve the accuracy of the chamfering processing. At the same time, the processing depth gradually decreases, further improving the accuracy of the chamfering processing; each chamfering processing trajectory of the outer wall is an arc line, so as to ensure that the first cutting tool 702 will not damage the outer wall of the two coplanar nozzles and the third nozzle.

[0102] In other words, since the space at the connection between the two coplanar pipe opening outer walls and the third pipe opening outer wall is relatively narrow (i.e., it is constrained by the two coplanar pipe opening outer walls and the third pipe opening outer wall), if the arc line chamfering method is not adopted, the two coplanar pipe opening outer walls and the third pipe opening outer wall will be damaged to a great extent. Such operation can ensure that the first cutting tool 702 will not cause damage to the outer walls of the two coplanar pipe openings and the third pipe opening, so as to improve the processing quality of the different diameter eccentric tees.

[0103] In this embodiment, S5 includes the following steps:

[0104] S5-1, extending the third processing mechanism 7 into the interior of the fourth-level workpiece S4, and controlling the third processing mechanism 7 to move along the third trajectory line and the eighth trajectory line together, processing the inner wall of the two coplanar nozzles and the third nozzle of the fourth-level workpiece at a processing depth of L4;

[0105] S5-2, controlling the third processing mechanism 7 to move along the third trajectory line and the ninth trajectory line together, and processing the inner wall of the two coplanar nozzles and the third nozzle of the fourth-level workpiece at a processing depth of L5;

[0106] S5-3, controlling the third processing mechanism 7 to move along the third trajectory line and the tenth trajectory line together, so as to process the inner wall of the two coplanar nozzles and the third nozzle of the fourth-level workpiece to form a fifth-level workpiece;

[0107] L4>L5; In S5, the third trajectory line refers to: the intersection line of the inner walls of the two coplanar nozzles and the inner wall of the third nozzle; the fourth trajectory line includes: the eighth trajectory line, the ninth trajectory line and the tenth trajectory line, the eighth trajectory line and the ninth trajectory line are straight lines, and the tenth trajectory line is an arc line; the third trajectory line and the fourth trajectory line move together means that: the first cutting tool 702 needs to rotate along the third trajectory line and around the fourth-level workpiece, and at the same time, in each cutting surface, the first cutting tool 702 needs to move along the eighth trajectory line, the ninth trajectory line and the tenth trajectory line. Thus, the gradual processing of the inner wall chamfer can avoid the damage to the material caused by the one-time chamfering forming, so as to improve the accuracy of the chamfering processing. At the same time, the processing depth gradually decreases, further improving the accuracy of the chamfering processing; the trajectories of the first two chamfering processes of the inner wall are straight lines to improve the processing speed of the chamfering, and the trajectory of the last chamfering process is an arc line to ensure the smooth transition of the connection between the two coplanar nozzle inner walls and the inner wall of the third nozzle.

[0108] In other words, since the space at the connection between the inner walls of the two coplanar pipe openings and the inner wall of the third pipe opening is larger (i.e., there is no material constraint on both sides), the trajectories of the first two times when rounding the corners are straight lines. This operation can cut off more material and ensure to the greatest extent that when the corners are rounded in the final process, the excess material at this position is as small as possible, thereby increasing the processing speed of rounding the corners.

[0109] To sum up, the present invention can perform chamfering on the connection between the two coplanar pipe openings of the reducing eccentric tee and the inner and outer walls of the third pipe opening through the setting of the third processing mechanism 7. Compared with the existing reducing eccentric tee that has not been chamfered, the connection between the two coplanar pipe openings and the inner and outer walls of the third pipe opening of the reducing eccentric tee after the chamfering treatment is smooth, which can improve the structural strength of the connection between the two coplanar pipe openings of the reducing eccentric tee and the inner and outer walls of the third pipe opening, so as to improve the service life of the entire reducing eccentric tee. At the same time, when in use, due to the smooth transition of the connection between the two coplanar pipe openings of the reducing eccentric tee and the inner wall of the third pipe opening, the flow rate of water at the connection between the two coplanar pipe openings and the inner wall of the third pipe opening can be improved.

[0110] The above description is an explanation of the present invention, not a limitation of the present invention. The scope of the present invention is defined in the claims. Any form of modification may be made within the scope of protection of the present invention.

Claims

1. A special processing equipment for reducing eccentric tees, characterized in that: include: a fixing base (1), and A conveying track (2) and a workbench (3), wherein the workbench (3) is mounted on the conveying track (2), the conveying track (2) is mounted on the fixed seat (1), the workbench (3) is used to carry a workpiece, and the conveying track (2) is used to transport the workpiece; A cutting mechanism (4), a first processing mechanism (5), a second processing mechanism (6) and a third processing mechanism (7) are arranged on the fixed seat (1) beside the conveying track (2) in sequence along the workpiece conveying direction. The cutting mechanism (4) is used for cutting the workpiece. The first processing mechanism (5) is used for processing the inner and outer walls of two coplanar pipe openings of the reducing eccentric tee. The second processing mechanism (6) is used for processing the inner and outer walls of the third pipe opening of the reducing eccentric tee. The third processing mechanism (7) is used for rounding the connection between the two coplanar pipe openings of the reducing eccentric tee and the inner and outer walls of the third pipe opening.

2. The special processing equipment for the reducing eccentric tee according to claim 1, characterized in that: The third processing mechanism (7) comprises: A first driving member (701) and a first cutting tool (702), wherein the first driving member (701) is mounted on the fixing seat (1), and the first cutting tool (702) is mounted on the driving end of the first driving member (701).

3. The special processing equipment for the reducing eccentric tee according to claim 1, characterized in that: The first processing mechanism (5) and the second processing mechanism (6) have the same structure; The first processing mechanism (5) comprises: A second driving member (501), a third driving member (502), an inner wall extrusion member (503), an outer wall processing member (504) and a surplus cutting member (505), wherein the second driving member (501) is connected to the fixing seat (1), the third driving member (502) is connected to the driving end of the second driving member (501), and the inner wall extrusion member (503), the outer wall processing member (504) and the surplus cutting member (505) are all connected to the driving end of the third driving member (502); The second driving member (501) is used to drive the inner wall extrusion member (503) or the outer wall processing member (504) to move along the axis direction of the two coplanar pipe openings of the reducing eccentric tee or the axis direction of the third pipe opening. The second driving member (501) is also used to drive the excess cutting member (505) to move along the axis direction of the two coplanar pipe openings of the reducing eccentric tee. The third driving member (502) is used to drive the inner wall extrusion member (503) or the outer wall processing member (504) to move along the axis direction of the two coplanar pipe openings of the reducing eccentric tee. The third driving member (502) is also used to drive the excess cutting member (505) to rotate along the axial direction of the two coplanar pipe openings of the reducing eccentric tee. The inner wall extrusion member (503) is used to extrude the reducing eccentric tee material to extrude the inner walls of the two coplanar pipe openings or the inner wall of the third pipe opening. The outer wall processing member (504) is used to process the outer walls of the two coplanar pipe openings of the reducing eccentric tee or the outer wall of the third pipe opening. The excess cutting member (505) is used to cut the excess material of the reducing eccentric tee.

4. The special processing equipment for the reducing eccentric tee according to claim 1, characterized in that: The cutting mechanism (4) comprises: A fourth driving member (401) and a second cutting tool (402), wherein the fourth driving member (401) is mounted on the fixing seat (1), and the second cutting tool (402) is mounted on the driving end of the fourth driving member (401).

5. The special processing equipment for reducing eccentric tees according to claim 1, characterized in that: Also includes: Two clamping mechanisms (8), the two clamping mechanisms (8) are respectively located on both sides of the workbench (3), the clamping mechanisms (8) are used to clamp a workpiece carried on the workbench (3), and the clamping mechanisms (8) include: A fifth driving member (801) and a clamping block (802), wherein the fifth driving member (801) is mounted on the workbench (3) via a second supporting member (803), and a driving end of the clamping block (802) is connected to the fifth driving member (801).

6. A processing technology of the special processing equipment for the reducing eccentric tee according to claims 1-5, characterized in that: The following steps are involved: S1, firstly, extruding a reducing eccentric tee through a die to form a reducing eccentric tee blank, then placing the reducing eccentric tee blank on a workbench (3), and conveying the blank to a processing area of ​​a cutting mechanism (4) through a conveying track (2), and cutting the blank through the cutting mechanism (4) to form a primary workpiece of a reducing eccentric tee; S2, transporting the primary workpiece in S1 to the processing area of ​​the first processing mechanism (5) through the conveying track (2), and processing the inner and outer walls of the two coplanar pipe openings of the primary workpiece through the first processing mechanism (5) to form a secondary workpiece; S3, transporting the secondary workpiece in S2 to the processing area of ​​the second processing mechanism (6) through the conveying track (2), and processing the inner and outer walls of the third pipe opening of the secondary workpiece through the second processing mechanism (6) to form a tertiary workpiece; S4, transporting the third-level workpiece in S3 to the processing area of ​​the third processing mechanism (7) through the conveying track (2), and controlling the third processing mechanism (7) to move along the first trajectory line and the second trajectory line together, so as to perform chamfering on the outer wall of the two coplanar pipe openings of the third-level workpiece and the third pipe opening, so as to form a fourth-level workpiece; S5, extending the third processing mechanism (7) into the interior of the fourth-level workpiece in S4, and controlling the third processing mechanism (7) to move along the third trajectory line and the fourth trajectory line together, so as to perform chamfering on the inner wall of the two coplanar pipe openings and the third pipe opening of the fourth-level workpiece, so as to form a fifth-level workpiece; S6, transporting the fifth-level workpiece in S5 to the processing area of ​​the first processing mechanism (5), and using the first processing mechanism (5) to cut off the excess material on the outer walls of the two coplanar nozzles of the fifth-level workpiece to form a sixth-level workpiece; S7, removing the sixth-level workpiece in S6 from the workbench (3), and sequentially performing heat treatment, shot blasting, polishing and heat treatment to form a different-diameter eccentric tee.

7. The processing technology of the special processing equipment for the reducing eccentric tee according to claim 6, characterized in that: The S4 comprises the following steps: S4-1, transporting the tertiary workpiece in S3 to the processing area of ​​the third processing mechanism (7) through the conveying track (2), and controlling the third processing mechanism (7) to move along the first trajectory line and the fifth trajectory line together, and processing the outer wall of the two coplanar pipe openings and the third pipe opening of the tertiary workpiece at a processing depth of L1; S4-2, transporting the tertiary workpiece in S3 to the processing area of ​​the third processing mechanism (7) through the conveying track (2), and controlling the third processing mechanism (7) to move along the first trajectory line and the sixth trajectory line together, and processing the two coplanar nozzles of the tertiary workpiece and the outer wall of the third nozzle at a processing depth of L2; S4-3, transporting the third-level workpiece in S3 to the processing area of ​​the third processing mechanism (7) through the conveying track (2), and controlling the third processing mechanism (7) to move along the first trajectory line and the seventh trajectory line together, processing the two coplanar nozzles of the third-level workpiece and the outer wall of the third nozzle at a processing depth of L3, so as to form a fourth-level workpiece; L1>L2>L3.

8. The processing technology of the special processing equipment for the reducing eccentric tee according to claim 6, characterized in that: The S5 comprises the following steps: S5-1, extending the third processing mechanism (7) into the interior of the fourth-level workpiece S4, and controlling the third processing mechanism (7) to move along the third trajectory line and the eighth trajectory line together, and processing the inner wall of the two coplanar pipe openings and the third pipe opening of the fourth-level workpiece at a processing depth of L4; S5-2, controlling the third processing mechanism (7) to move along the third trajectory line and the ninth trajectory line, and processing the inner wall of the two coplanar nozzles and the third nozzle of the fourth-level workpiece at a processing depth of L5; S5-3, controlling the third processing mechanism (7) to move along the third trajectory line and the tenth trajectory line to process the two coplanar nozzles of the fourth-level workpiece and the inner wall of the third nozzle to form a fifth-level workpiece; L4>L5.

9. The processing technology of the special processing equipment for the reducing eccentric tee according to claim 7, characterized in that: In S4, the first trajectory line refers to: an intersection line of the two coplanar pipe opening outer walls and the third pipe opening outer wall; The second trajectory includes: The fifth track line, the sixth track line and the seventh track line, the fifth track line, the sixth track line and the seventh track line are all arc-shaped; The first trajectory line and the second trajectory line move together: The first cutting tool (702) needs to rotate along the first trajectory and around the tertiary workpiece. At the same time, within each cutting surface, the first cutting tool (702) needs to move along the fifth trajectory, the sixth trajectory or the seventh trajectory.

10. The processing technology of the special processing equipment for the reducing eccentric tee according to claim 8, characterized in that: In S5, the third trajectory line refers to: an intersection line between the inner walls of the two coplanar nozzles and the inner wall of the third nozzle; The fourth track includes: an eighth trajectory line, a ninth trajectory line and a tenth trajectory line, wherein the eighth trajectory line and the ninth trajectory line are straight lines, and the tenth trajectory line is an arc line; The third and fourth track lines move together: The first cutting tool (702) needs to rotate along the third trajectory and around the fourth-level workpiece. At the same time, within each cutting surface, the first cutting tool (702) needs to move along the eighth trajectory, the ninth trajectory and the tenth trajectory.

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