An internal thread forming device and forming process for a threaded elbow

Abstract

The present application relates to the technical field of elbow pipe processing, in particular to an internal thread forming device and forming process for threaded elbows; a plurality of punched threaded elbows are placed side by side at designated positions of a merging clamping device; an appropriate forged ball is placed at the port of the upper end of each threaded elbow; the merging clamping device is adjusted in correspondence with the size of the threaded elbow; the merging clamping device is driven to extrude and simultaneously perform automatic angle adjustment of the forged ball and internal thread processing of the plurality of threaded elbows; the present application has the beneficial effect of solving the problem that the prior art usually needs to be processed and prepared individually, cannot be prepared in batches at the same time, and has low efficiency; at the same time, the threaded elbow to be processed cannot be detected and the ball cannot be forged before processing.

Description

Technical Field

[0001] This invention relates to the field of elbow pipe fitting processing technology, and more specifically to an internal thread forming device and forming process for a threaded elbow. Background Technology

[0002] Existing threaded elbows are typically pipe fittings with internal or external threads, used to change the direction of fluid (usually 45° or 90°) and achieve a detachable connection. Their processing technology involves various processes, depending on the material, size, precision requirements, and production volume. Typically, threading is performed after stamping. A similar device, patent number CN202410800696.X, describes a 90-degree elbow stainless steel internal thread processing device, including a frame with a clamping mechanism on the upper part for adaptive clamping of the 90-degree elbow. The frame also includes a clamping mechanism for self-adaptive clamping of the 90-degree elbow. This invention relates to a tapping mechanism for simultaneously machining internal threads on the two ends of a 90-degree stainless steel elbow. The mechanism utilizes a moving component to drive a clamping block and a V-block, allowing the clamping block and V-block to clamp the 90-degree stainless steel elbow only once. This enables the tapping mechanism to simultaneously machine the internal threads on both ends of the elbow, improving machining efficiency and avoiding errors from secondary clamping, thus ensuring the quality of the internal thread machining. Furthermore, when clamping the 90-degree stainless steel elbow, the clamping mechanism ensures that both ends face downwards, facilitating the removal of metal debris.

[0003] However, this device usually requires individual processing and preparation of threaded elbows during the internal thread machining process, and cannot perform batch preparation at the same time, resulting in low efficiency. In addition, it cannot inspect the threaded elbows to be machined and perform ball forging before processing. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the problem that the existing technology usually requires processing and preparation individually, and cannot be batched at the same time, resulting in low efficiency; at the same time, it is impossible to inspect and forge the threaded elbows to be processed before processing.

[0005] Therefore, the technical solution adopted is an internal thread forming device and forming process for a threaded elbow of the present invention, including a fixed base, a plurality of snap-fit ​​drive cylinders symmetrically fixed on the fixed base, the upper end of the snap-fit ​​drive cylinders being fixed on a snap-fit ​​extrusion table, one end of the snap-fit ​​extrusion table being hinged to one end of the fixed base, and a push processing table for inserting a forged ball into the fixed threaded elbow being fixed on the snap-fit ​​extrusion table, wherein the threaded elbow is clamped and fixed in an adaptive angle adjustment base for ball forging and internal thread forming.

[0006] Preferably, the upper end of the fixed base is connected to the lifting platform via a stabilizing lifter, which drives the lifting platform to slide stably longitudinally on the fixed base.

[0007] Preferably, the stabilizing lifter includes two lifting cylinders, both of which are fixed between the fixed base and the lifting platform. The fixed base and the lifting platform are slidably connected to each other through two rack sockets, and the two rack sockets are driven by meshing a transverse transmission gear shaft and a longitudinal transmission gear shaft.

[0008] Preferably, the propulsion processing table includes an upper fixed table, an extrusion tap driver, and an extrusion arc-shaped support. The upper fixed table is fixed to the lower end of the snap-fit ​​extrusion table. Multiple extrusion tap drivers are evenly fixed side by side on the upper fixed table. An extrusion arc-shaped support that fits against the forged ball and drives it is fixed on the extrusion tap driver. A processing tap is fixed on the drive shaft of the extrusion tap driver.

[0009] Preferably, the adapter angle adjustment base is set on the lifting platform. The adapter angle adjustment base includes an angle tilt driver. The angle tilt driver is fixed to the side end of the arc-shaped push slide base through a motor base. The lower end of the arc-shaped push slide base slides back and forth on the lifting platform through a limiting slide.

[0010] Preferably, the front end of the arc-shaped propulsion sliding base is fixed on the telescopic shaft of the base propulsion cylinder; the base propulsion cylinder is fixed to the front end of the lifting platform via a side fixing platform.

[0011] Preferably, the drive shaft of the angle tilting driver is fixed at the middle of the half-fan push platform, and the half-fan push platform slides in an arc shape on the arc-shaped end face of the arc-shaped push sliding base through an arc-shaped groove for angle tilting adjustment.

[0012] Preferably, two inclined rods are symmetrically arranged on the half-fan push platform, each inclined rod is provided with an inclined slide groove, and a clamping push cylinder is fixed on each inclined rod. The clamping push cylinder drives the clamping push plate to slide within the two inclined slide grooves.

[0013] Preferably, the half-fan push platform is provided with marking points; the clamping push plate is clamped and fitted at the bending angle of the threaded bend.

[0014] A process for forming the internal thread of a threaded elbow includes the following steps:

[0015] S1: Place multiple stamped threaded elbows side by side at the designated position of the merging clamping device;

[0016] S2: A suitable forged ball is placed at the end of each of the multiple threaded elbows;

[0017] S3: Adjust and combine the clamping device according to the size of the threaded elbow;

[0018] S4: Drives the merging clamping device to extrude forged spheres and perform internal thread processing on multiple threaded bends with automatically adjusted angles.

[0019] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in this application.

[0020] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the first direction structure of the internal thread forming device for the threaded elbow of the present invention.

[0023] Figure 2 This is a schematic diagram of the second direction structure of the internal thread forming device for the threaded elbow of the present invention;

[0024] Figure 3 This is a partial structural schematic diagram of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the propulsion processing table of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the stabilizer of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the adaptive angle adjustment base of the present invention. Figure 1 ;

[0028] Figure 7 This is a schematic diagram of the structure of the adaptive angle adjustment base of the present invention. Figure 2 ;

[0029] Figure 8 This is a schematic diagram of the structure of the adaptive angle adjustment base of the present invention. Figure 3 ;

[0030] Figure 9 This is a schematic diagram of the structure of the adaptive angle adjustment base of the present invention. Figure 4 ;

[0031] Figure 10This is a schematic diagram of the structure of the adaptive angle adjustment base of the present invention. Figure 5 ;

[0032] Figure 11 This is a schematic diagram of the process of the present invention.

[0033] In the diagram: 1. Fixed base; 2. Lifting platform; 3. Stabilizing lifter; 4. Clamping extrusion platform; 5. Clamping drive cylinder; 6. Propulsion processing platform; 7. Adaptive angle adjustment base; 8. Threaded elbow; 9. Forged sphere; 10. Upper fixed platform; 11. Extrusion tap driver; 12. Extrusion arc-shaped support; 13. Lifting cylinder; 14. Horizontal transmission gear shaft; 15. Longitudinal transmission gear shaft; 16. Rack socket; 17. Angle tilt driver; 18. Half-fan propulsion platform; 19. Arc-shaped tilt drive slide; 20. Arc-shaped propulsion slide base; 21. Base propulsion cylinder; 22. Side fixed platform; 23. Clamping propulsion cylinder; 24. Clamping propulsion plate; 25. Processing tap. Detailed Implementation

[0034] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] In the description of this application, it should be understood that the terms "middle," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] Furthermore, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] Example 1:

[0039] like Figure 1 — Figure 11 As shown, it includes a fixed base 1, on which multiple snap-fit ​​drive cylinders 5 are symmetrically fixed. The upper end of the snap-fit ​​drive cylinder 5 is fixed on the snap-fit ​​extrusion table 4. One end of the snap-fit ​​extrusion table 4 is hinged to one end of the fixed base 1. A push processing table 6 for inserting the forged ball 9 into the fixed threaded elbow 8 is fixed on the snap-fit ​​extrusion table 4. The threaded elbow 8 is clamped and fixed in the adaptation angle adjustment base 7 for ball forging and internal thread forming.

[0040] The working principle and beneficial effects of this embodiment are as follows: By clamping and fixing multiple threaded elbows 8 into the adaptation angle adjustment base 7, it is convenient for them to be processed side by side; then, by controlling the overall drive to engage the drive cylinder 5, the push processing table 6 on the clamping extrusion table 4 is aligned with the forged ball 9 on the threaded elbow 8. Through the preset value of the frequency converter, the adaptation angle adjustment base 7 can always adjust the angle of the push processing table 6 during the falling arc process, so that the push processing table 6 always enters the multiple threaded elbows 8 vertically to extrude and forge the forged ball 9. Then, the tap rotates naturally on the inner wall of the threaded elbow 8 to process the internal thread.

[0041] Example 2:

[0042] like Figure 1 — Figure 11 As shown, an internal thread forming device and forming process for a threaded elbow are disclosed. The upper end of the fixed base 1 is connected to the lifting platform 2 through a stabilizing lifter 3. The stabilizing lifter 3 drives the lifting platform 2 to slide stably longitudinally on the fixed base 1.

[0043] The working principle and beneficial effects of this embodiment are as follows: The upper end of the fixed base 1 is connected to the lifting platform 2 through the stabilizing lifter 3. The stabilizing lifter 3 drives the lifting platform 2 to slide stably longitudinally on the fixed base 1, so that the lifting platform 2 on the fixed base 1 is more stable; thus, it can be adapted to use with threaded elbows 8 of different specifications, and thus it can be combined with the processing table 6 to always enter the multiple threaded elbows 8 vertically in the processing, so as to ensure the accuracy of the processing.

[0044] Example 3:

[0045] like Figure 1 — Figure 11 As shown, an internal thread forming device and forming process for a threaded elbow are disclosed. The stabilizing lifter 3 includes two lifting cylinders 13, which are fixed between the fixed base 1 and the lifting platform 2. The fixed base 1 and the lifting platform 2 are slidably connected to each other through two rack sockets 16. The two rack sockets 16 are driven by meshing with a transverse transmission gear shaft 14 and a longitudinal transmission gear shaft 15.

[0046] The working principle and beneficial effects of this embodiment are as follows: Two lifting cylinders 13 simultaneously drive the lifting platform 2 to rise and fall on the fixed base 1. During the lifting process of the lifting platform 2, the two rack sockets 16 can be lifted and fallen synchronously. Then, through the meshing of the transverse transmission gear shaft 14 and the longitudinal transmission gear shaft 15, the transmission is carried out, which makes the connection between multiple structures more interconnected during lifting and falling, and the lifting and falling is more stable, preventing the occurrence of tilting during lifting and falling. At the same time, it is combined with the fact that the push processing table 6 always enters the multiple threaded bends 8 vertically during processing, so as to ensure the accuracy of processing.

[0047] Example 4:

[0048] like Figure 1 — Figure 11 As shown, an internal thread forming device and forming process for a threaded elbow are disclosed. The feed processing table 6 includes an upper fixed table 10, an extrusion tap driver 11, and an extrusion arc-shaped support 12. The upper fixed table 10 is fixed to the lower end of the snap-fit ​​extrusion table 4. Multiple extrusion tap drivers 11 are evenly fixed side by side on the upper fixed table 10. An extrusion arc-shaped support 12 that conforms to and drives the forged ball 9 is fixed on the extrusion tap driver 11. A processing tap 25 is fixed on the drive shaft of the extrusion tap driver 11.

[0049] The working principle and beneficial effects of this embodiment are as follows: When the locking drive cylinder 5 retracts and locks the pressing table 4 and the lifting base 2, the upper fixed table 10, the pressing tap driver 11 and the pressing arc-shaped seat 12 are lowered in an arc shape; thus, the multiple pressing tap drivers 11 and the pressing arc-shaped seat 12, which are evenly fixed side by side on the upper fixed table 10, are lowered, which facilitates the batch forging inspection and internal thread processing of multiple threaded elbows 8 in the same batch.

[0050] Example 5:

[0051] like Figure 1 — Figure 11 As shown, an internal thread forming device and forming process for a threaded elbow are disclosed. The adapter angle adjustment base 7 is set on the lifting platform 2. The adapter angle adjustment base 7 includes an angle tilt driver 17. The angle tilt driver 17 is fixed to the side end of the arc-shaped push sliding base 20 through a motor seat. The lower end of the arc-shaped push sliding base 20 slides back and forth on the lifting platform 2 through a limiting sliding mechanism.

[0052] The working principle and beneficial effects of this embodiment are as follows: The adaptation angle adjustment base 7 is set on the lifting platform 2, which facilitates the adaptation and adjustment of the downward tilt angle of the push processing table 6; because the angle tilt driver 17 is fixed to the side end of the arc-shaped push sliding base 20 through the motor seat, and the lower end of the arc-shaped push sliding base 20 slides back and forth on the lifting platform 2 through the limit sliding, the arc-shaped push sliding base 20 can drive the angle tilt driver 17 to slide back and forth synchronously through the limit sliding. The data is collected and fed back to the frequency converter, thereby realizing the automatic adjustment of the front and rear adaptation and ensuring the accuracy of automatic processing.

[0053] Example 6:

[0054] like Figure 1 — Figure 11 As shown, an internal thread forming device and forming process for a threaded elbow are disclosed. The front end of the arc-shaped push sliding base 20 is fixed on the telescopic shaft of the base push cylinder 21. The base push cylinder 21 is fixed to the front end of the lifting base 2 via the side fixing platform 22.

[0055] The working principle and beneficial effects of this embodiment are as follows: because the front end of the arc-shaped sliding base 20 is fixed on the telescopic shaft of the base pushing cylinder 21; the base pushing cylinder 21 is fixed to the front end of the lifting platform 2 through the side fixing platform 22, by setting the control program of the base pushing cylinder 21 to a frequency conversion program, the arc-shaped sliding base 20 and the angle tilting driver 17 are driven to move back and forth through the base pushing cylinder 21, thereby driving multiple threaded elbows 8 to move back and forth during the processing.

[0056] Example 7:

[0057] like Figure 1 — Figure 11 As shown, an internal thread forming device and forming process for a threaded elbow are disclosed. The transmission shaft of the angle tilting driver 17 is fixed at the middle end of the half-fan push platform 18. The half-fan push platform 18 slides in an arc shape on the arc-shaped end face of the arc-shaped push sliding base 20 through an arc-shaped groove for angle tilting adjustment.

[0058] The working principle and beneficial effects of this embodiment are as follows: The transmission shaft of the angle tilting driver 17 is fixed to the middle of the half-fan push platform 18, which drives the half-fan push platform 18 to rotate. Because the half-fan push platform 18 slides in an arc shape on the arc-shaped end face of the arc-shaped push sliding base 20 through the arc-shaped slide groove, it can tilt at an angle, thereby realizing the adjustment of the angle tilt of the half-fan push platform 18. This also allows the multiple threaded elbows 8 arranged side by side in the half-fan push platform 18 to tilt at an angle, so that they can be adapted to fit into the push processing table 6 and always enter the multiple threaded elbows 8 vertically for processing, thus ensuring the accuracy of processing.

[0059] Example 8:

[0060] like Figure 1 — Figure 11 As shown, an internal thread forming device and forming process for a threaded elbow are disclosed. Two inclined rods are symmetrically arranged on the half-fan push platform 18. Each of the two inclined rods is provided with an inclined slide groove. A clamping and pushing oil cylinder 23 is fixed on each of the two inclined rods. The clamping and pushing oil cylinder 23 drives the clamping and pushing plate 24 to slide within the two inclined slide grooves.

[0061] The working principle and beneficial effects of this embodiment are as follows: Two inclined rods are symmetrically arranged on the half-fan push platform 18 for extension. Each of the two inclined rods is provided with an inclined slide groove, and a clamping push cylinder 23 is fixed on each of the two inclined rods. Thus, the clamping push cylinder 23 drives the clamping push plate 24 to slide within the two inclined slide grooves. In turn, the two clamping push cylinders 23 drive the clamping push plate 24 to clamp the multiple threaded elbows 8 arranged in the half-fan push platform 18, so as to cooperate in the ball forging and internal thread processing.

[0062] Example 9:

[0063] like Figure 1 — Figure 11 As shown, an internal thread forming device and forming process for a threaded elbow are disclosed. Marking points are provided on the half-fan pusher table 18; the clamping pusher plate 24 clamps and fits against the bending angle of the threaded elbow 8.

[0064] The working principle and beneficial effects of this embodiment are as follows: Marking points are provided on the half-fan push table 18 to ensure the placement of each threaded elbow 8; the clamping push plate 24 clamps and fits against the bending angle of the threaded elbow 8, which facilitates clamping each threaded elbow 8 on the half-fan push table 18 for simultaneous forging and internal thread processing of multiple threaded elbows 8.

[0065] Example 10:

[0066] A process for forming the internal thread of a threaded elbow includes the following steps:

[0067] S1: Place multiple stamped threaded elbows 8 side by side at the designated position of the merging clamping device;

[0068] S2: A suitable forged ball 9 is placed at the port of the upper end of multiple threaded elbows 8;

[0069] S3: Adjust and combine the clamping device according to the size of threaded elbow 8;

[0070] S4: Drive the merging clamping device to extrude and simultaneously process the forged spheres 9 with automatic angle adjustment for multiple threaded bends 8 and internal threads.

[0071] The working principle and beneficial effects of this embodiment are as follows: multiple stamped threaded elbows 8 are placed side by side at designated positions of the merging clamping device; suitable forged balls 9 are placed at the upper ends of multiple threaded elbows 8; the merging clamping device is adjusted according to the size of the threaded elbows 8; the merging clamping device is driven to extrude and simultaneously perform automatic angle adjustment of the forged balls 9 on multiple threaded elbows 8 and internal thread processing; thereby achieving the effect of automatically forging and internal thread processing of multiple threaded elbows 8 in a suitable manner.

[0072] The above description is not intended to limit the present invention, nor is the present invention limited to the examples given above. Any changes, modifications, additions, or substitutions made by those skilled in the art within the scope of the present invention are also within the protection scope of the present invention.

Claims

1. An internal thread forming device for a threaded elbow, characterized by: The utility model relates to a ball screw thread forming device, including fixed base (1), a plurality of buckle drive oil cylinders (5) are fixed symmetrically on fixed base (1), the upper end of buckle drive oil cylinder (5) is fixed in buckle extrusion platform (4), one end of buckle extrusion platform (4) is hinged in one end of fixed base (1), and the push processing platform (6) for inserting the forged ball (9) into the fixed threaded elbow (8) is fixed on buckle extrusion platform (4), and threaded elbow (8) is clamped and fixed in the adaptive angle adjusting base (7) and is used for ball forging and internal thread forming; The upper end of the fixed base (1) is connected to the lifting base (2) through the stable lifter (3), and the stable lifter (3) drives the lifting base (2) to stably slide longitudinally on the fixed base (1). The push processing platform (6) includes an upper fixed platform (10), an extrusion tap driver (11), and an extrusion arc-shaped seat (12), the upper fixed platform (10) is fixed to the lower end of the buckle extrusion platform (4), a plurality of extrusion tap drivers (11) are uniformly fixed side by side on the upper fixed platform (10), the extrusion arc-shaped seat (12) is fixed to the extrusion tap driver (11) and drives the fitting of the forged ball (9), and a machining tap (25) is fixed to the transmission shaft of the extrusion tap driver (11). The adaptive angle adjusting base (7) is arranged on the lifting base (2), the adaptive angle adjusting base (7) includes an angle tilting driver (17), the angle tilting driver (17) is fixed to the side end of the arc-shaped push sliding base (20) through a motor base, and the lower end of the arc-shaped push sliding base (20) slides forward and backward on the lifting base (2) through limiting sliding.

2. A device for forming the internal thread of a threaded elbow according to claim 1, characterized in that: The stable lifter (3) includes two lifting oil cylinders (13), the two lifting oil cylinders (13) are fixed between the fixed base (1) and the lifting base (2), the fixed base (1) and the lifting base (2) slide and insert each other through two rack sockets (16), and the two rack sockets (16) are driven through the meshing horizontal transmission gear shaft (14) and the longitudinal transmission gear shaft (15).

3. A device for forming the internal thread of a threaded elbow according to claim 1, characterized in that: The front end of the arc-shaped push sliding base (20) is fixed to the telescopic shaft of the base push oil cylinder (21), and the base push oil cylinder (21) is fixed to the front end of the lifting base (2) through the side fixed platform (22).

4. A device for forming the internal thread of a threaded elbow according to claim 1, characterized in that: The transmission shaft of the angle tilting driver (17) is fixed to the middle end of the half-fan push platform (18), the half-fan push platform (18) slides arcuately on the arc-shaped end face of the arc-shaped push sliding base (20) through an arc-shaped sliding groove, and is used for angle tilting adjustment.

5. A device for forming the internal thread of a threaded elbow according to claim 4, characterized in that: Two tilting rods are symmetrically arranged on the half-fan push platform (18), the two tilting rods are provided with tilting sliding grooves, clamping push oil cylinders (23) are fixed to the two tilting rods, and the clamping push oil cylinders (23) drive the clamping push plates (24) to limit sliding in the two tilting sliding grooves.

6. A device for forming the internal thread of a threaded elbow according to claim 5, characterized in that: The half-fan push platform (18) is provided with a mark point, and the clamping push plate (24) is clamped and fitted at the bending angle of the threaded elbow (8).

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