Pushing machine for elbow production and production method

Abstract

The invention relates to the technical field of elbow pushing machines, and provides a pushing machine for elbow production and a production method. The guide rod is arranged on the rack, a first containing groove is formed in the axial direction of the guide rod, a first clamping groove is formed in the radial direction of the guide rod, and the first clamping groove communicates with the first containing groove; the limiting pieces are movably arranged in the first clamping grooves, and one ends of the limiting pieces extend out of the first clamping grooves. The guide rod is sleeved with the movable locking piece, the movable locking piece is movably arranged relative to the guide rod, the movable locking piece is provided with a first receding groove, and after the movable locking piece moves, the first receding groove communicates with the first clamping groove, or the first clamping groove is closed so that one end of the limiting piece can stretch into the first containing groove; the mold part is provided with a second clamping groove, the mold part is used for being arranged in the first containing groove, the second clamping groove communicates with the first clamping groove, and the limiting piece is clamped in the first clamping groove and the second clamping groove. According to the technical scheme, the problem that in the prior art, a mold part is inconvenient to disassemble and assemble when needing to be replaced is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of elbow pushing machines, and in particular to a pushing machine for producing elbows and a production method. Background Art

[0002] Elbow is a commonly used pipe fitting used to connect two pipes of the same or different diameters to make the pipe turn at a certain angle. The elbow is generally produced using an elbow pusher, which sets the blank steel pipe on a guide rod and pushes the blank steel pipe to the heated mold part through the push of a hydraulic rod to heat and shape the elbow.

[0003] However, in actual production, the existing elbow pushing machine still has the following problems: (1) The mold part is not easy to disassemble when it needs to be replaced; (2) When putting the blank steel pipe fitting on the guide rod, in order to avoid interference with the fixing device of the guide rod, the blank steel pipe fitting is usually put on manually first, and then the guide rod is lifted and removed from the fixing device. After the blank steel pipe fitting is pushed through the fixing device, the fixing device is restarted to fix the guide rod and the lifting rope is removed at the same time. Such operation is cumbersome and labor-intensive. Summary of the invention

[0004] The present invention provides a push-making machine and a production method for elbow production, which solves the problem in the related art that the mold part is inconvenient to disassemble and assemble when it needs to be replaced.

[0005] The technical solution of the present invention is as follows: A push-making machine for elbow production, comprising: frame; A guide rod, arranged on the frame, having a first receiving groove in the axial direction and a first clamping groove in the radial direction, wherein the first clamping groove is connected to the first receiving groove; A limiting member is movably disposed in the first card slot, wherein the moving direction of the limiting member is parallel to the radial direction of the guide rod, and one end of the limiting member extends to the outside of the first card slot; A movable locking member is sleeved on the guide rod and is movably arranged relative to the guide rod. The moving direction of the movable locking member is parallel to the axial direction of the guide rod. The movable locking member has an avoidance groove 1. After the movable locking member moves, the avoidance groove 1 is communicated with the clamping groove 1, or the clamping groove 1 is closed so that one end of the limiting member extends into the accommodating groove 1. The mold part has a second card slot, and the mold part is used to be arranged in the first receiving slot. The second card slot is connected to the first card slot, and the limiting member is clamped in the first card slot and the second card slot.

[0006] As a further technical solution, the guide rod has an annular groove 1 in the circumferential direction, the annular groove 1 has an annular groove 2 in it, the movable locking member is sleeved on the annular groove 1, and further includes: The elastic member 1 is sleeved on the annular groove 2, one end of which acts on the inner wall of the annular groove 2 and the other end of which acts on the inner wall of the movable locking member, so as to provide a force for the movable locking member to move closer to the mold part.

[0007] As a further technical solution, the mold part has an annular groove three in the circumferential direction, and an annular groove four is provided inside the annular groove three, and further includes: A push piece, sleeved on the annular groove three, and movably arranged relative to the mold part, wherein the moving direction of the push piece is parallel to the axial direction of the guide rod; A protrusion is arranged on the ejection member, and the movable locking member also has an arc-shaped receiving groove in the circumferential direction, the arc-shaped receiving groove is located on the radial outer side of the receiving groove, and the arc-shaped receiving groove is used to receive the protrusion; The annular groove 4 is also provided with an annular avoidance groove, and the annular avoidance groove is used to avoid the guide rod.

[0008] As a further technical solution, the mold part further has an L-shaped groove in the circumferential direction, the L-shaped groove is connected to the second card slot, and when the mold part is used to be set on the guide rod, the protrusion pushes the movable locking member to move radially along the guide rod, and the limit member enters the L-shaped groove. After the mold part rotates, the arc-shaped accommodating groove receives the protrusion, and the limit member is clamped in the first card slot and the second card slot, and also includes, A switching assembly, wherein the guide rod is further provided with an arc-shaped accommodating groove II on the circumferential direction, wherein the arc-shaped accommodating groove II is located radially outside the accommodating groove I, wherein the switching assembly is arranged in the arc-shaped accommodating groove II, wherein the arc-shaped accommodating groove is provided with an avoidance groove II, wherein the inner wall of the movable locking member is further provided with a limiting hole, wherein the avoidance groove II is communicated with the arc-shaped accommodating groove II and is configured to avoid the switching assembly, and wherein the limiting hole is configured to be stuck by the switching assembly to limit the movable locking member; The mold part is used to be arranged on the guide rod. After the mold part rotates, it continues to extend into the accommodating groove 1. The mold part or the protrusion squeezes the switching component, so that the movable locking member limits or cancels the limit.

[0009] As a further technical solution, the switching component includes: A limit plate, movably disposed in the second arc-shaped accommodating groove, wherein the moving direction of the limit plate is parallel to the axial direction of the guide rod; A second elastic member, one end of which is arranged on the limiting plate, and the other end of which is arranged on the inner wall of the second arc-shaped receiving groove, and is used to provide a force for restoring the limiting plate after movement; A trigger member is movably arranged in the second arc-shaped accommodating groove, the moving direction of the trigger member is parallel to the radial direction of the guide rod, one end of the trigger member extends into the second avoidance groove, the convex block has a convex block, the limit plate has a guide surface 1, the trigger member has a convex block 2, the convex block abuts against the guide surface 1, after the convex block moves, the convex block squeezes the trigger member to make it move radially, and the convex block pushes the guide surface 1 to make the limit plate move; The clamping member is movably arranged in the arc-shaped accommodating groove 2 and is located on one side of the triggering member. The moving direction of the clamping member is parallel to the radial direction of the guide rod. The clamping member has a protrusion 3, and the limiting plate also has a guide surface 2 and a clamping groove 3. After the limiting plate moves, the protrusion 3 is clamped in the clamping groove 3 or abuts against the guide surface 2, and the clamping member moves radially to be clamped in or out of the limiting hole.

[0010] As a further technical solution, it also includes: The elastic member three has one end acting on the trigger member and the other end acting on the limit plate, so as to provide a force for resetting the trigger member.

[0011] As a further technical solution, The elastic member 4 has one end acting on the clamping member and the other end acting on the limit plate, so as to provide a force for resetting the clamping member.

[0012] As a further technical solution, it also includes: Two clamps are both movably arranged on the frame, and the moving directions of the two clamps are opposite and parallel to the radial direction of the guide rod, and are used for clamping and fixing the guide rod.

[0013] As a further technical solution, it also includes: A bracket, which is lifted and arranged on the frame and is located on one side of the chuck; A supporting wheel is rotatably arranged on the bracket, the rotation axis of the supporting wheel is parallel to the axis of the guide rod, and the supporting wheel is used to support the guide rod.

[0014] As a further technical solution, a method for producing elbows is proposed, which uses the elbow production push machine described above for production.

[0015] The working principle and beneficial effects of the present invention are: In the present invention, the connection structure between the guide rod and the mold part on the existing push-forming machine is improved, and the mold part and the guide rod can be quickly disassembled and installed, thereby improving the disassembly and installation efficiency of the mold part and saving manpower.

[0016] Specifically, at one end of the guide rod that is connected to the mold part, a part of the end is removed along the circumferential direction, that is, the diameter is smaller than the diameter of the other parts of the guide rod, and the movable locking piece is sleeved at the end position. A groove is opened at the central position of the end, namely, the accommodating groove one, and the center line of the accommodating groove one is along the axial direction. Then, a radial groove is opened on the accommodating groove one, namely, the clamping groove one, and a locking ball, namely, a limit piece, is placed in the clamping groove one. The locking ball is restricted to move in the clamping groove one and cannot escape from the clamping groove one.

[0017] When the mold part needs to be installed on the guide rod, first move the movable locking member backward along the axial direction, align and connect the avoidance groove 1 with the card slot 1, and then insert the mold part into the receiving groove 1. The outer wall of the mold part will fit with the inner wall of the receiving groove 1. When passing through the limiter, it will be pushed outward first. At this time, part of the limiter will enter the avoidance groove 1. Then, when the card slot 2 of the mold part is aligned and connected with the card slot 1, the limiter will move in the opposite direction again. The part that entered the avoidance groove 1 returns to the card slot 1, and part of it enters the card slot 2. Finally, restore the movable locking member, close the card slot 1, and the limiter will be stuck in the card slots 1 and 2, locking the mold part to the guide rod, completing the installation of the mold part. When the mold part needs to be disassembled, move the movable locking member backward along the axial direction again. At this time, the closure of the card slot 1 is released, and the limiter can be movably extended into the avoidance groove 1. The mold part can be pulled out to complete the disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the structure of the mold part and the guide rod in the present invention; Figure 3 It is a structural schematic diagram of a cross-sectional view of a mold part and a guide rod in the present invention; Figure 4 for Figure 3 A schematic diagram of the enlarged structure of the middle part A; Figure 5 It is a structural schematic diagram of the second cross-sectional view of the mold part and the guide rod in the present invention; Figure 6 for Figure 5 The enlarged structural diagram of the middle part B; Figure 7 for Figure 5 Schematic diagram of the enlarged structure of the local C in the middle; Figure 8 It is a schematic diagram of the third structure of the cross-sectional view of the mold part and the guide rod in the present invention; Fig. 9 for Figure 8 Schematic diagram of the local D enlarged structure; In the figure: 1, frame, 2, guide rod, 3, receiving groove 1, 4, card groove 1, 5, limit member 5, 6, movable locking member, 7, avoidance groove 1, 8, mold part, 9, card groove 2, 10, annular groove 1, 11, annular groove 2, 12, elastic member 1, 13, annular groove 3, 14, annular groove 4, 15, ejector, 16, bump, 17, arc receiving groove, 18, annular avoidance groove, 19, L-shaped groove, 2 0. Switching assembly, 21. Arc-shaped accommodating groove 2, 22. Avoiding groove 2, 23. Limiting hole, 24. Limiting plate, 25. Elastic member 2, 26. Trigger member, 27. Protrusion 1, 28. Guide surface 1, 29. Protrusion 2, 30. Card member, 31. Protrusion 3, 32. Guide surface 2, 33. Card slot 3, 34. Elastic member 3, 35. Elastic member 4, 36. Clamp, 37. Bracket, 38. Support wheel. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0021] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0022] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0024] like Figure 1 to Figure 9 As shown, a push-making machine for elbow production is proposed, including a frame 1; a guide rod 2 is arranged on the frame 1, and the guide rod 2 has a receiving groove 3 in the axial direction and a clamping groove 4 in the radial direction, and the clamping groove 4 is connected to the receiving groove 3; a limit member 5 is movably arranged in the clamping groove 4, and the moving direction of the limit member 5 is parallel to the radial direction of the guide rod 2, and one end of the limit member 5 extends to the outside of the clamping groove 4; a movable locking member 6 is sleeved on the guide rod 2 and movably arranged relative to the guide rod 2, and the moving direction of the movable locking member 6 is parallel to the axial direction of the guide rod 2, and the movable locking member 6 has an avoidance groove 7, after the movable locking member 6 moves, the avoidance groove 7 is connected with the clamping groove 4, or the clamping groove 4 is closed so that one end of the limit member 5 extends into the receiving groove 3; the mold part 8 has a clamping groove 2 9, and the mold part 8 is used to be arranged in the receiving groove 3, the clamping groove 2 9 is connected with the clamping groove 4, and the limit member 5 is clamped in the clamping groove 4 and the clamping groove 2 9.

[0025] In this embodiment, in order to solve the problem in the prior art that the mold part 8 is inconvenient to disassemble and assemble when it needs to be replaced due to maintenance, size change, etc., the connection structure between the guide rod 2 and the mold part 8 on the existing push-making machine is improved, and the mold part 8 and the guide rod 2 can be quickly disassembled and installed, thereby improving the disassembly and assembly efficiency of the mold part 8 and saving manpower.

[0026] Specifically, at one end of the guide rod 2 that is connected to the mold part 8, a part of the end is removed along the circumferential direction, that is, the diameter is smaller than the diameter of the other parts of the guide rod 2, and the movable locking member 6 is sleeved on the end position. A groove is opened at the central position of the end, namely, the accommodating groove 3, and the center line of the accommodating groove 3 is axially, and then a radial groove is opened on the accommodating groove 3, namely, the clamping groove 4, and a locking ball, namely, the limit member 5, is placed in the clamping groove 4. The locking ball is restricted to move in the clamping groove 4 and cannot escape from the clamping groove 4.

[0027] When the mold part 8 needs to be installed on the guide rod 2, first move the movable locking member 6 backward along the axial direction, align and connect the avoidance groove 7 and the card slot 4, and then insert the mold part 8 into the accommodating groove 3. The outer wall of the mold part 8 will fit with the inner wall of the accommodating groove 3. When passing through the limiting member 5, it will be pushed outward first. At this time, part of the limiting member 5 will enter the avoidance groove 7. Then, when the card slot 2 9 of the mold part 8 is aligned and connected with the card slot 4, the limiting member 5 will move in the opposite direction. The part that entered the avoidance groove 7 returns to the card slot 4, and a part enters the card slot 2 9. Finally, the movable locking member 6 is restored and the card slot 4 is closed. The limiting member 5 will be stuck in the card slot 4 and the card slot 2 9, and the mold part 8 is locked to the guide rod 2, and the installation of the mold part 8 is completed. When the mold part 8 needs to be disassembled, the movable locking member 6 is moved axially backward again, and the closure of the slot 4 is released. The limit member 5 can be movably extended into the avoidance groove 7, and the mold part 8 can be pulled out to complete the disassembly.

[0028] In summary, the cooperation between the limiting member 5 and the movable locking member 6 enables the installation and disassembly of the mold part 8 to be simple and quick, thus saving manpower and improving efficiency.

[0029] Furthermore, the guide rod 2 has an annular groove 10 in the circumferential direction, an annular groove 11 is provided inside the annular groove 10, the movable locking member 6 is sleeved on the annular groove 10, and the elastic member 12 is sleeved on the annular groove 11, one end of the elastic member 12 acts on the inner wall of the annular groove 11, and the other end acts on the inner wall of the movable locking member 6, so as to provide a force for the movable locking member 6 to move closer to the mold portion 8.

[0030] In this embodiment, in order to realize the automatic resetting of the movable locking member 6, a spring, namely an elastic member 12, is installed on the guide rod 2. Each time the movable locking member 6 moves, it can be reset with the help of the elastic force of the spring, making the operation easier.

[0031] In addition, due to the design of the annular groove 10 and the annular groove 2 11, the circumferential surface of the movable locking member 6 is flush with the circumferential surface of the guide rod 2, which will not affect the movement of the blank steel pipe.

[0032] Furthermore, the mold portion 8 has an annular groove three 13 in the circumferential direction, and an annular groove four 14 is provided in the annular groove three 13. The ejector 15 is sleeved on the annular groove three 13 and is movably arranged relative to the mold portion 8. The moving direction of the ejector 15 is parallel to the axial direction of the guide rod 2; the protrusion 16 is arranged on the ejector 15, and the movable locking member 6 also has an arc-shaped accommodating groove 17 in the circumferential direction. The arc-shaped accommodating groove 17 is located on the radially outer side of the accommodating groove one 3, and the arc-shaped accommodating groove 17 is used to accommodate the protrusion 16; the annular groove four 14 also has an annular avoidance groove 18, and the annular avoidance groove 18 is used to avoid the guide rod 2.

[0033] In this embodiment, in order to realize automatic pushing of the movable locking member 6 to move backward when the mold part 8 is installed, a pushing member 15 is further provided on the mold part 8, and a protrusion 16 is provided on the pushing member 15. A corresponding arc-shaped receiving groove 17 for accommodating the protrusion 16 is opened on the movable locking member 6. When the mold part 8 is installed, the protrusion 16 and the arc-shaped receiving groove 17 are not aligned. At this time, the protrusion 16 will push the movable locking member 6 to move backward until the avoidance groove 7 and the card slot 4 are connected, and then the mold part 8 is rotated to align the card slot 2 9 with the card slot 4, and at the same time, the protrusion 16 and the arc-shaped receiving groove 17 are aligned, and the movable locking member 6 is reset under the action of the elastic member 12, thereby realizing the automatic reset of the movable locking member 6.

[0034] In addition, due to the design of the annular groove three 13 and the annular groove four 14, the circumferential surface of the ejector 15 is flush with the circumferential surface of the guide rod 2, which will not affect the movement of the blank steel pipe.

[0035] It should be noted that the attached drawings are only schematic diagrams and the dimensions may have some deviations, which will not affect the above principles.

[0036] Furthermore, the mold part 8 also has an L-shaped groove 19 on the circumference, and the L-shaped groove 19 is connected with the second card groove 9. When the mold part 8 is set on the guide rod 2, the protrusion 16 pushes the moving locking member 6 to move radially along the guide rod 2, and the limit member 5 enters the L-shaped groove 19. After the mold part 8 rotates, the arc-shaped receiving groove 17 is received in the protrusion 16, and the limit member 5 is stuck in the card groove 14 and the second card groove 9. The guide rod 2 also has an arc-shaped receiving groove 21 on the circumference, and the arc-shaped receiving groove 21 is located on the radial outside of the receiving groove 3. The switching component 20 is provided It is arranged in the arc-shaped accommodating groove 21, and there is an avoidance groove 22 in the arc-shaped accommodating groove 17. There is also a limiting hole 23 on the inner wall of the movable locking member 6. The avoidance groove 22 is communicated with the arc-shaped accommodating groove 21 and is configured to avoid the switching component 20. The limiting hole 23 is configured to be clamped by the switching component 20 to limit the movable locking member 6; the mold part 8 is used to be arranged on the guide rod 2, and the mold part 8 continues to extend into the accommodating groove 3 after rotation, and the mold part 8 or the protrusion 16 squeezes the switching component 20, so that the movable locking member 6 is limited or the limit is cancelled.

[0037] In this embodiment, in order to realize that when the mold part 8 is disassembled, the movable locking member 6 does not need to be manually removed, and the mold part 8 can be automatically separated from the guide rod 2, a switching component 20 is also provided on the guide rod 2. When the mold part 8 is to be disassembled, it is only necessary to rotate the mold part 8 by a certain angle first (the part of the limit member 5 entering the card slot 29 will move into the L-shaped slot 19 and will not block the rotation of the mold part 8. The width of the arc-shaped accommodating slot 17 is greater than the protrusion 16, and the rotation angle is small, and the protrusion 16 will not block the rotation of the mold part 8). Then continue to move closer to the guide rod 2, the mold part 8 will touch the switching component 20, and the switching component 20 will be locked. When the mold part 8 is moved, the protrusion 16 of the ejector 15 will also push the movable locking member 6 to move backward, and the avoidance groove 7 will be connected with the card groove 4. In this way, the limiting member 5 releases the lock of the mold part 8 and the guide rod 2, and the mold part 8 is pulled out in the reverse direction. During the reverse movement of the protrusion 16, it will touch the switching component 20 again, and the switching component 20 will release the lock of the limiting hole 23, and the movable locking member 6 will release the limit. After the mold part 8 is removed, the movable locking member 6 is also reset under the elastic force of the elastic member 12.

[0038] In addition, an elastic block can be provided at the connection between the second card slot 9 and the L-shaped slot 19 to limit the limiter 5 to a certain extent, so that the limiter 5 does not easily enter the L-shaped slot 19, thereby avoiding affecting the limiting effect of the limiter 5 on the mold part 8.

[0039] Further, the switching assembly 20 includes a limit plate 24, which is movably arranged in the arc-shaped accommodating groove 21, and the moving direction of the limit plate 24 is parallel to the axial direction of the guide rod 2; one end of the elastic member 25 is arranged on the limit plate 24, and the other end is arranged on the inner wall of the arc-shaped accommodating groove 21, which is used to provide a force for the limit plate 24 to reset after moving; the trigger member 26 is movably arranged in the arc-shaped accommodating groove 21, and the moving direction of the trigger member 26 is parallel to the radial direction of the guide rod 2, and one end of the trigger member 26 extends into the avoidance groove 22, the protrusion 16 has a protrusion 27, the limit plate 24 has a guide surface 28, and the trigger member 26 has a convex The protrusion 29 abuts against the guide surface 1 28. After the protrusion 16 moves, the protrusion 1 27 squeezes the trigger member 26 to make it move radially, and the protrusion 29 pushes the guide surface 1 28 to make the limit plate 24 move; the clamping member 30 is movably arranged in the arc-shaped accommodating groove 21, located on one side of the triggering member 26, and the moving direction of the clamping member 30 is parallel to the radial direction of the guide rod 2. The clamping member 30 has a protrusion 31, and the limit plate 24 also has a guide surface 2 32 and a slot 33. After the limit plate 24 moves, the protrusion 31 is stuck in the slot 33 or abuts on the guide surface 2 32, and the clamping member 30 moves radially to get into or out of the limit hole 23.

[0040] In this embodiment, the specific working principle of the switching component 20 is as follows: One end of the trigger member 26 in the switching assembly 20 always passes through the avoidance groove 22 and extends into the arc-shaped accommodating groove 17. When the mold part 8 is disassembled, the mold part 8 rotates a certain angle and then continues to move close to the guide rod 2. The outer wall of the mold part 8 will gradually squeeze the end of the clamping member 30, so that the clamping member 30 gradually moves radially outward, and the protrusion 31 on the clamping member 30 will push the limit plate 24 along the guide surface 23 and finally enter the clamping groove 33. The protrusion 31 is stuck in the clamping groove 33, and the clamping member 30 is fixed and inserted into the limit hole 23 on the inner wall of the movable locking member 6 to realize the locking of the movable locking member 6. Since the movement of the mold part 8 will also push the movable locking member 6 with the protrusion 16, the avoidance groove 7 and the clamping groove 4 will be aligned, so that the limit member 5 releases the lock of the mold part 8. Therefore, it is only necessary to pull out the mold part 8 in the reverse direction to realize its disassembly. No manual intervention is required in this process, and the disassembly of the mold part 8 is automatically realized. In addition, during the reverse withdrawal of the mold portion 8, the protrusion 16 will gradually reversely disengage from the arc-shaped accommodating groove 17. During the disengagement of the protrusion 16, its protrusion 1 27 will press down the trigger member 26. At this time, the protrusion 29 on the trigger member 26 will push the limit plate 24 along the guide surface 1 28 to move. The movement of the limit plate 24 will make the slot 33 move away from the protrusion 3 31. At this time, resetting the clamping member 30 can release the lock on the movable locking member 6, so that the movable locking member 6 can also be reset.

[0041] In addition, when installing the mold part 8, one end of the trigger member 26 in the switching assembly 20 passes through the avoidance groove 22 and extends into the arc-shaped accommodating groove 17, and the protrusion 31 of the clamping member 30 abuts against the guide surface 2 32. The clamping member 30 is not inserted into the limiting hole 23, and the movable locking member 6 is not locked, and the movement of the movable locking member 6 is not affected. Even during the installation of the mold portion 8, after the protrusion 16 and the arc-shaped receiving groove 17 are aligned, the movable locking member 6 will move toward the protrusion 16 under the action of the elastic member 12. During this period, the protrusion 27 of the protrusion 16 will press down the end of the trigger member 26. At this time, there will be no interference between the clamping member 30 and the movable locking member 6. Because the trigger member 26 moves, its protrusion 29 pushes the limit plate 24 along the guide surface to move toward the mold portion 8, and the guide surface 22 will disengage from the protrusion 31, and the protrusion 31 will not move into the clamping groove 33, and the clamping member 30 will not move. That is, when the mold portion 8 is installed, although the protrusion 27 of the protrusion 16 will press down the trigger member 26 once, it will not cause the clamping member 30 to move, and will not affect the movable locking member 6.

[0042] Furthermore, it also includes an elastic member 34 , one end of the elastic member 34 acts on the trigger member 26 , and the other end acts on the limit plate 24 , so as to provide a force for resetting the trigger member 26 .

[0043] In this embodiment, the elastic member 34 can be a spring to achieve automatic resetting of the trigger member 26 .

[0044] Furthermore, it also includes an elastic member 4 35, one end of which acts on the clamping member 30, and the other end of which acts on the limiting plate 24, so as to provide a force for resetting the clamping member 30.

[0045] In this embodiment, the elastic member four 35 can be a spring, so that when the mold part 8 is disassembled in the above embodiment, after the slot three 33 moves away from the protrusion three 31, the protrusion three 31 moves to the guide surface two 32 under the action of the spring and completely detaches from the slot three 33.

[0046] Furthermore, it also includes two clamps 36, which are both movably arranged on the frame 1, and the moving directions of the two clamps 36 are opposite and parallel to the radial direction of the guide rod 2, and are used to clamp and fix the guide rod 2. Further, it also includes a bracket 37, which is lifted and arranged on the frame 1 and is located on one side of the clamp 36; a supporting wheel is rotatably arranged on the bracket 37, and the rotating axis of the supporting wheel is parallel to the axial direction of the guide rod 2, and the supporting wheel is used to lift the guide rod 2.

[0047] In this embodiment, in order to solve the problem that the operation of fixing the guide rod 2 and loading the blank steel pipe fittings onto the guide rod 2 is relatively cumbersome in the prior art, when the blank steel pipe fittings are initially loaded, two chucks 36 fix the guide rod 2 to avoid deviation during loading and affect processing. When the blank steel pipe fittings move to the position of the chuck 36, the supporting wheel rises to hold the guide rod 2, the chuck 36 is released, and the blank steel pipe fittings pass smoothly through the position of the chuck 36. When it moves to the position of the supporting wheel, the chuck 36 clamps and fixes the guide rod 2, and the supporting wheel drops and no longer holds the guide rod 2, which does not affect the passage of the blank steel pipe fittings. In this way, the chuck 36 and the supporting wheel cooperate with each other to simply and quickly complete the fixing of the guide rod 2 and the loading of the blank steel pipe fittings onto the guide rod 2.

[0048] In addition, the clamp 36 and the bracket 37 are both externally connected to a driving member to achieve movement, and the driving member can be selected from an existing air cylinder, hydraulic cylinder, etc.

[0049] Furthermore, a method for producing an elbow is proposed, which uses a push-making machine for producing an elbow.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A push-making machine for elbow production, characterized in that: include, Rack(1); A guide rod (2) is arranged on the frame (1), the guide rod (2) having a receiving groove (3) in the axial direction and a clamping groove (4) in the radial direction, the clamping groove (4) being connected to the receiving groove (3); A limiting member (5) is movably arranged in the first clamping slot (4), the moving direction of the limiting member (5) is parallel to the radial direction of the guide rod (2), and one end of the limiting member (5) extends to the outside of the first clamping slot (4); A movable locking member (6) is sleeved on the guide rod (2) and is arranged to move relative to the guide rod (2); the moving direction of the movable locking member (6) is parallel to the axial direction of the guide rod (2); the movable locking member (6) has an avoidance groove (7); after the movable locking member (6) moves, the avoidance groove (7) is communicated with the clamping groove (4), or the clamping groove (4) is closed so that one end of the limiting member (5) extends into the accommodating groove (3); The mold part (8) has a second card slot (9), the mold part (8) is used to be arranged in the first receiving slot (3), the second card slot (9) is connected to the first card slot (4), and the limiting member (5) is clamped in the first card slot (4) and the second card slot (9).

2. A push-making machine for elbow production according to claim 1, characterized in that: The guide rod (2) has an annular groove 1 (10) in the circumferential direction, and an annular groove 2 (11) is provided inside the annular groove 1 (10). The movable locking member (6) is sleeved on the annular groove 1 (10), and further comprises: The elastic member 1 (12) is sleeved on the annular groove 2 (11), one end of which acts on the inner wall of the annular groove 2 (11), and the other end of which acts on the inner wall of the movable locking member (6), so as to provide a force for the movable locking member (6) to move closer to the mold part (8).

3. A push-making machine for elbow production according to claim 2, characterized in that: The mold part (8) has an annular groove three (13) in the circumferential direction, and an annular groove four (14) is provided inside the annular groove three (13), and further includes: A push piece (15) is sleeved on the annular groove (13) and is movably arranged relative to the mold portion (8), and the moving direction of the push piece (15) is parallel to the axial direction of the guide rod (2); A protrusion (16) is arranged on the ejection member (15), and the movable locking member (6) also has an arc-shaped receiving groove (17) in the circumferential direction, wherein the arc-shaped receiving groove (17) is located radially outside the first receiving groove (3), and the arc-shaped receiving groove (17) is used to receive the protrusion (16); The annular groove four (14) is also provided with an annular avoidance groove (18), and the annular avoidance groove (18) is used to avoid the guide rod (2).

4. A push-making machine for elbow production according to claim 3, characterized in that: The mold part (8) also has an L-shaped groove (19) in the circumferential direction, the L-shaped groove (19) is connected to the second clamping groove (9), and when the mold part (8) is arranged on the guide rod (2), the protrusion (16) pushes the movable locking member (6) to move radially along the guide rod (2), and the limiting member (5) enters the L-shaped groove (19). After the mold part (8) rotates, the arc-shaped accommodating groove (17) is received in the protrusion (16), and the limiting member (5) is clamped in the first clamping groove (4) and the second clamping groove (9), and further includes: A switching assembly (20), wherein the guide rod (2) further comprises a second arc-shaped receiving groove (21) on the circumference thereof, wherein the second arc-shaped receiving groove (21) is located radially outside the first receiving groove (3), wherein the switching assembly (20) is arranged in the second arc-shaped receiving groove (21), wherein the arc-shaped receiving groove (17) comprises a second avoidance groove (22), wherein the inner wall of the movable locking member (6) further comprises a limiting hole (23), wherein the second avoidance groove (22) is in communication with the second arc-shaped receiving groove (21) and is configured to avoid the switching assembly (20), and wherein the limiting hole (23) is configured to be caught by the switching assembly (20) and to limit the movable locking member (6); The mold part (8) is used to be arranged on the guide rod (2), and after the mold part (8) rotates, it continues to extend into the accommodating groove (3), and the mold part (8) or the protrusion (16) squeezes the switching component (20), so that the movable locking member (6) is limited or released.

5. The elbow production pusher according to claim 4, characterized in that: The switching component (20) comprises: a limit plate (24) movably disposed in the second arc-shaped receiving groove (21), wherein the moving direction of the limit plate (24) is parallel to the axial direction of the guide rod (2); A second elastic member (25), one end of which is arranged on the limiting plate (24) and the other end of which is arranged on the inner wall of the second arc-shaped receiving groove (21), and is used to provide a force for restoring the limiting plate (24) after movement; A trigger member (26) is movably arranged in the second arc-shaped accommodating groove (21), the moving direction of the trigger member (26) is parallel to the radial direction of the guide rod (2), one end of the trigger member (26) extends into the second avoidance groove (22), the protrusion (16) has a protrusion (27), the limiting plate (24) has a guide surface (28), the trigger member (26) has a protrusion (29), the protrusion (29) abuts against the guide surface (28), after the protrusion (16) moves, the protrusion (27) squeezes the trigger member (26) to make it move radially, and the protrusion (29) pushes the guide surface (28) to make the limiting plate (24) move; A clamping member (30) is movably arranged in the second arc-shaped receiving groove (21) and is located on one side of the trigger member (26). The moving direction of the clamping member (30) is parallel to the radial direction of the guide rod (2). The clamping member (30) has a third protrusion (31). The limiting plate (24) also has a second guide surface (32) and a third clamping groove (33). After the limiting plate (24) moves, the third protrusion (31) is clamped in the third clamping groove (33) or abuts against the second guide surface (32). The clamping member (30) moves radially to be clamped into or out of the limiting hole (23).

6. The elbow production pusher according to claim 5, characterized in that: Also includes, An elastic member three (34) has one end acting on the trigger member (26) and the other end acting on the limit plate (24), and is used to provide a force for resetting the trigger member (26).

7. The elbow production pusher according to claim 5, characterized in that: Also includes, An elastic member four (35) has one end acting on the clamping member (30) and the other end acting on the limiting plate (24), and is used to provide a force for resetting the clamping member (30).

8. The elbow production pusher according to claim 1, characterized in that: Also includes, The two clamps (36) are both movably arranged on the frame (1), and the moving directions of the two clamps (36) are opposite and parallel to the radial direction of the guide rod (2), and are used to clamp and fix the guide rod (2).

9. The elbow production pusher according to claim 8, characterized in that: Also includes, A bracket (37) is arranged on the frame (1) in a lifting manner and is located on one side of the clamping head (36); A supporting wheel (38) is rotatably mounted on the bracket (37), the rotation axis of the supporting wheel (38) being parallel to the axis of the guide rod (2), and the supporting wheel (38) is used to support the guide rod (2).

10. A method for producing an elbow, characterized in that: The elbow pushing machine according to claim 1 is used for production.

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