Three-shaft spiral pipe bending machine

Abstract

The utility model relates to the field of electric heating pipes, in particular to a three-shaft spiral pipe bending machine. A three-shaft spiral pipe bending machine comprises a rack, a pressing wheel mechanism, a main shaft mechanism, a lifting mechanism and a control mechanism are arranged on the rack, the lifting mechanism comprises a stand column, the middle of the stand column is sleeved with a shaft sleeve b, the shaft sleeve b is sleeved with a lifting base, the surface of the lifting base is provided with the pressing wheel mechanism, and the pressing wheel mechanism comprises a pressing wheel, a pushing rod and a lead screw installation base. A lead screw mounting seat is arranged at one end of the surface of the lifting base, a pushing rod is arranged in the lead screw mounting seat, a mounting block a is arranged at one end of the pushing rod, a sleeve seat is arranged on the outer wall of the mounting block a, a vertical pipe sleeve is arranged at the front end of the sleeve seat, a rotating shaft is arranged in the pipe sleeve, and a pressing wheel is connected to the bottom end of the rotating shaft. The pipe bending machine has the advantages that the lifting mechanism controls lifting to enable the pressing wheel to move on the layering station of the forming die, the main shaft mechanism drives the forming die to rotate, pipe bending spiral is completed through cooperation of the pressing wheel, and then material ejecting and demolding are completed through a material returning rod of the material returning mechanism.

Description

Technical Field

[0001] This utility model relates to the field of electric heating tubes, and in particular to a three-axis spiral tube bending machine. Background Technology

[0002] The main component of heating appliances is the heating element. The shape of the heating element varies depending on the product. The heating element in an electric iron is usually U-shaped, while the heating element in an oven has a different shape. When the heating element needs to be shaped into a spiral, it requires mechanical processing, which can be cumbersome, inefficient, and imprecise. Summary of the Invention

[0003] To solve the aforementioned technical problems of cumbersome operation and low processing efficiency, this utility model provides a three-axis spiral pipe bending machine.

[0004] The technical solution of this utility model is as follows:

[0005] A three-axis spiral pipe bending machine includes a frame, on which a pressure roller mechanism, a main shaft mechanism, a lifting mechanism, and a control mechanism are mounted. The lifting mechanism includes a column, with a bushing b fitted in the middle of the column. A lifting base is fitted over the bushing b. The lifting base has a pressure roller mechanism on its surface, comprising a pressure roller, a push rod, and a screw mounting seat. A screw mounting seat is located at one end of the lifting base, with a push rod inside. A mounting block a is located at one end of the push rod, and a sleeve is located on the outer wall of mounting block a. A vertical pipe sleeve is located at the front end of the sleeve, and a rotating shaft is located within the sleeve. The bottom end of the rotating shaft is connected to the pressure roller, and the upper part of the rotating shaft is mounted on the pipe sleeve via a nut. A ball screw a is located at the other end of the push rod, connected to a pressure servo. A lifting push rod is connected to the bottom of the lifting base. The lowering push rod passes through the frame, and the bottom of the lifting push rod is connected to the ball screw b. The ball screw b is connected to the reducer, which is mounted on the mounting plate c. The reducer is connected to the lifting servo. The main spindle mechanism includes a forming mold, a mold base, and a main spindle. The main spindle is equipped with a forming mold and a mold base, and the mold base is equipped with a forming mold. The main spindle is equipped with a material ejection mechanism. The main spindle is installed in a bushing e, which is mounted on the frame. The main spindle is connected to a main spindle servo. The control mechanism includes a power distribution box, which is equipped with an operation panel. The pressure roller mechanism, main spindle mechanism, lifting mechanism, and control mechanism are connected.

[0006] The number of columns is four. The lifting base is I-shaped. The bottom of the column is installed on the frame through the bushing a, and the top of the column is installed with the fixing plate a.

[0007] The shaft is provided with collars at the top and bottom, and a washer is provided at the bottom of the nut.

[0008] The lifting push rod is fitted with a bushing c, which is mounted on the frame.

[0009] The ball screw b13 passes through the bushing d and the mounting plate b28 and is connected to the upper part of the connector a. The lower part of the connector a is connected to the movable rod a of the reducer 14. The bushing d is installed on the mounting plate b28. The mounting plate b28 is horizontally arranged between the mounting brackets a50. There are two mounting brackets a50. The mounting brackets a50 are arranged parallel and vertically at the bottom of the fixed plate b31. The mounting plate c51 is located below the mounting plate b28. The reducer 14 is installed at the bottom of the mounting plate c51 and is connected to the lifting servo 15.

[0010] The forming mold surface is provided with a placement groove, and one end of the placement groove is provided with an insertion hole. The forming mold surface is stepped, with more than two steps. There is a top material seat in the mold base, and a material ejection mechanism is below the top material seat. A bushing e is provided on the outer sleeve of the main shaft, and the bushing e is installed on the frame. There are mounting grooves at both ends of the lower part of the main shaft. The material ejection mechanism includes a material ejection rod, with a top material ejection plate at the top, a straight rod body in the middle, and a movable rod at the bottom. The movable rod is horizontally arranged in the mounting groove. A movable sleeve is provided below the movable rod, and the movable sleeve is fitted outside the main shaft. The movable rod is connected to the rod bodies on both sides of the movable sleeve. The movable sleeve is connected to the upper and lower cylinders. The bottom end of the main shaft is connected to a connecting piece b, which is connected to the main shaft servo. The bottom of the mounting frame b is provided with a main shaft servo.

[0011] The bushing e has a bearing on the inner side of the top, a bearing retaining ring on the outer side of the bearing, a mounting plate a at the bottom, a mounting plate b at the top bottom of the main shaft, a mounting plate b and a mounting plate c on the lower part of the main shaft, the mounting plate b is in contact with the mounting plate a, and a return sleeve is provided below the top material plate.

[0012] The control panel is equipped with a touch screen and a proximity switch, and the frame is equipped with a push-button switch.

[0013] The frame includes a support and a fixing plate b, and the fixing plate b is provided on the surface of the support.

[0014] The technical solution of this utility model has a novel structure and a clever and simple design. The lifting mechanism controls the lifting so that the pressure roller moves on the mold layer station. The main shaft mechanism drives the mold to rotate. The bending spiral is completed through the cooperation of the pressure roller. After completion, the ejector rod of the ejector mechanism completes the ejection and demolding. The operation process is reasonable and smooth. Not only is the process simple and efficient, but it also reduces the reliance on manual labor. Moreover, the touch screen operation makes it easy to view and operate, making it more intelligent. Attached Figure Description

[0015] Figure 1 , 2 3 and 4 are schematic diagrams of the structure of this utility model;

[0016] Figure 5 , 6 This is a schematic diagram of the main shaft mechanism of this utility model;

[0017] Figure 7 , 8 This is a schematic diagram of the structure of the bushing e of this utility model;

[0018] Figure 9 This is a schematic diagram of the main shaft of this utility model;

[0019] Figure 10 This is a schematic diagram of the ejector bar of this utility model;

[0020] Figure 11 This is a schematic diagram of the structure of the present invention, showing the separation of the sleeve, rotating shaft, and clamping wheel;

[0021] Figure 12 This is a structural schematic diagram of the work site of this utility model. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example

[0023] like Figure 1 , 2 The three-axis spiral pipe bending machine shown in figures 3, 4, 5, 6, 7, 8, 9, and 11 includes a frame 21. The frame 21 is equipped with a pressure roller mechanism, a main shaft mechanism, a lifting mechanism, and a control mechanism. The lifting mechanism includes a column 22, and a bushing b24 is fitted into the middle of the column 22. A lifting base 11 is fitted over a bushing b24. A pressure roller mechanism is provided on the surface of the lifting base 11, comprising a pressure roller 2, a push rod 3, and a screw mounting seat 25. The screw mounting seat 25 is located at one end of the lifting base 11, and the push rod 3 is located inside the screw mounting seat 25. A mounting block a26 is located at one end of the push rod 3, and a sleeve 27 is located on the outer wall of the mounting block a26. A vertical tube sleeve is located at the front end of the sleeve sleeve, and a rotating shaft is located within the tube sleeve. The bottom end of the rotating shaft is connected to the pressure roller 2, and the upper part of the rotating shaft is mounted on the tube sleeve via a nut. A ball screw a4 is located at the other end of the push rod 3, and the ball screw a4 is connected to a pressure servo 5. A lifting push rod 12 is connected to the bottom of the lifting base 11, and the lifting push rod 12 passes through the frame 21. The bottom is connected to a ball screw b13, which is connected to a reducer 14. The reducer 14 is mounted on a mounting plate c51 and connected to a lifting servo 15. The main spindle mechanism includes a forming mold 6, a mold base 7, and a main spindle 8. The main spindle 8 is equipped with the forming mold 6 and the mold base 7, and the mold base 7 is equipped with the forming mold 6. The main spindle 8 is equipped with a material ejection mechanism 9. The main spindle 8 is mounted in a bushing e29, which is mounted on a frame 21. The main spindle 8 is connected to a main spindle servo 10. The control mechanism includes a power distribution box 20, which is equipped with an operation panel 17. The pressure roller mechanism, main spindle mechanism, lifting mechanism, and control mechanism are connected. The main spindle servo 10, lifting servo 15, and material ejection cylinder are connected to the control system.

[0024] The number of columns 22 is four. The lifting base 11 is I-shaped. The bottom of the column 22 is installed on the frame 21 through the bushing a23. The top of the column 22 is installed with the fixing plate a.

[0025] The shaft is provided with collars at the top and bottom, and a washer is provided at the bottom of the nut.

[0026] The lifting push rod 12 is fitted with a bushing c, which is mounted on the frame 21.

[0027] The ball screw b13 passes through the bushing d and the mounting plate b28 and is connected to the upper part of the connector a. The lower part of the connector a is connected to the movable rod a of the reducer 14. The bushing d is installed on the mounting plate b28. The mounting plate b28 is horizontally arranged between the mounting brackets a50. There are two mounting brackets a50. The mounting brackets a50 are arranged parallel and vertically at the bottom of the fixed plate b31. The mounting plate c51 is located below the mounting plate b28. The reducer 14 is installed at the bottom of the mounting plate c51 and is connected to the lifting servo 15.

[0028] The surface of the forming mold 6 is provided with a placement groove, and one end of the placement groove is provided with an insertion hole. The surface of the forming mold 6 is in the form of a stepped layer, with more than two layers. The mold base 7 has a top material seat 33. Below the top material seat 33 is the ejection mechanism 9. The main shaft 8 is fitted with a bushing d29, which is mounted on the frame 21. The lower two ends of the main shaft 8 are provided with mounting grooves. The ejection mechanism 9 includes an ejection rod 32. The top of the ejection rod 32 is a top material plate, the middle is a straight rod body, and the bottom is a movable rod. The movable rod is horizontally arranged in the mounting groove. Below the movable rod is a movable sleeve 35, which is fitted outside the main shaft 8. The movable rod is connected to the rod bodies on both sides of the movable sleeve 35. The movable sleeve 35 is connected to the ejection cylinder. The bottom end of the main shaft 8 is connected to the main shaft servo 10 through the connector b. The mounting bracket b30 has the main shaft servo 10 at its bottom. The top material seat 33 has an ejector pin, which facilitates the forming and unloading of the heating tube 1. After the push rod completes the pushing of the top material seat 33, it descends and returns to its original position. During the unloading process, the gravity of the return sleeve 34 supports the material, making the pushing smooth.

[0029] The bushing d29 has a bearing on the inner side of the top and a bearing retaining ring on the outer side of the bearing. The bottom end has a mounting plate a. The top and bottom of the main shaft 8 has a mounting plate b. The lower part of the main shaft 8 is fitted with mounting plate b and mounting plate c36. Mounting plate b is in contact with mounting plate a. A return sleeve 34 is provided below the top plate.

[0030] The operation panel 17 is equipped with a touch screen 16 and a proximity switch 18, and the frame 21 is equipped with a push-button switch 19.

[0031] The frame 21 includes a support and a fixing plate b31, and the fixing plate b31 is provided on the surface of the support.

[0032] like Figure 12As shown, during use, the mold base 7 serves two purposes: firstly, to fix the forming mold 6; and secondly, to provide space for the push rod 32 and the ejector seat 33 to accommodate and rise. The ejector seat 33 has ejector pins to ensure that the heating element 1 is smoothly ejected after processing. If manual removal is required, force is needed and there is more contact with the heating element 1. The top of the forming mold 6 has a workpiece position 38, which is a straight groove with insertion holes on the inside. The bent part of the heating element 1 can be inserted into the groove to prevent it from falling off during processing. The outside consists of a stop body 37 and an arc-shaped body 49, and a pressure roller 2. With the help of the stop 37 and the arc surface 49, the pipe bending operation is completed. The forming mold 6 has three steps, providing working space for the pressure roller 2. It matches the first, second, and third positions in the process. From the first position to the second and third positions, the slope is downward, forming a descending slope. Manually operate the machine to check whether each mechanism is normal. Select the elliptical trajectory setting page. The shape of the forming mold 6 station is elliptical. Adjust the position of the pressure shaft segment by segment and point by point according to the product's winding trajectory. Run the machine without load! After confirming that everything is correct, enter the product model and execution code, and press the save button to save the data; on the main screen, select the execution code and export it, then reset the machine to the starting point of each axis; place the product into the forming mold 6, press the start switch, and the pressure roller 2 will advance; the pressure roller 2 will reach process point a40, and the main shaft 8 will rotate to the first segment position, process point b41; the main shaft 8, together with the lifting mechanism, will perform synchronous interpolation motion, and the rotating shaft will follow the movement in segments according to the set parameters, until the interpolation ends at the second segment position, process point g46, and the lifting mechanism will stop; 3. The pressure shaft will follow the main shaft to the third segment position, ending at process point f45. The working sequence is as follows: process point a40, process point b41, process point c42, process point d43, process point e44, process point f45, process point g46, process point h47, and process point i48; the pressure roller shaft will retract to the starting point A39; the main shaft, together with the lifting mechanism, will interpolate back to the starting point position, the material ejection cylinder will lift up and delay to pick up the material; after picking up the material, the material ejection will reset, and the operation will be completed.

[0033] It should be understood that the above description is only a preferred embodiment of the present utility model and is not sufficient to limit the technical solution of the present utility model. For those skilled in the art, within the spirit and principles of the present utility model, additions, subtractions, substitutions, transformations or improvements can be made based on the above description, and all such additions, subtractions, substitutions or improvements should fall within the protection scope of the appended claims of the present utility model.

Claims

1. A three-axis spiral pipe bending machine, including a frame (21), characterized in that: The frame (21) is equipped with a pressure roller mechanism, a main shaft mechanism, a lifting mechanism, and a control mechanism. The lifting mechanism includes a column (22), and a bushing b (24) is fitted in the middle of the column (22). A lifting base (11) is provided on the outer sleeve of bushing b (24). A pressure wheel mechanism is provided on the surface of the lifting base (11). The pressure wheel mechanism includes a pressure wheel (2), a push rod (3), and a screw mounting seat (25). A screw mounting seat (25) is provided at one end of the surface of the lifting base (11). A push rod (3) is provided inside the screw mounting seat (25). A mounting block a (26) is provided at one end of the push rod (3). A sleeve seat (27) is provided on the outer wall of the mounting block a (26). A vertical tube sleeve is provided at the front end of the sleeve seat (27). A rotating shaft is provided in the tube sleeve. The bottom end of the rotating shaft is connected to the pressure wheel (2). The upper part of the rotating shaft is installed on the tube sleeve by a nut. A ball screw a (4) is provided at the other end of the push rod (3). The ball screw a (4) is connected to the pressure servo (5). A lifting push rod (12) is connected to the bottom of the lifting base (11). The lifting push rod (12) passes through the frame ( 21), the bottom of the lifting push rod (12) is connected to the ball screw b (13), the ball screw b (13) is connected to the reducer (14), the reducer (14) is installed on the mounting plate c (51), the reducer (14) is connected to the lifting servo (15), the main shaft mechanism includes the forming mold (6), the mold seat (7) and the main shaft (8), the main shaft (8) is provided with the forming mold (6) and the mold seat (7), the mold seat (7) is provided with the forming mold (6), the main shaft (8) is provided with the unloading mechanism (9), the main shaft (8) is installed in the bushing e (29), the bushing e (29) is installed on the frame (21), the main shaft (8) is connected to the main shaft servo (10), the control mechanism includes the power distribution box (20), the power distribution box (20) is provided with the operation panel (17), the pressure roller mechanism, the main shaft mechanism, the lifting mechanism and the control mechanism are connected.

2. The three-axis spiral pipe bending machine according to claim 1, characterized in that: The number of columns (22) is four. The lifting base (11) is I-shaped. The bottom of the column (22) is installed on the frame (21) through the bushing a (23). The top of the column (22) is installed with a fixing plate a.

3. The three-axis spiral pipe bending machine according to claim 1, characterized in that: The shaft is provided with collars at the top and bottom, and a washer is provided at the bottom of the nut.

4. The three-axis spiral pipe bending machine according to claim 1, characterized in that: The lifting push rod (12) is fitted with a bushing c, which is mounted on the frame (21).

5. The three-axis spiral pipe bending machine according to claim 1, characterized in that: The ball screw b (13) passes through the bushing d and the mounting plate b (28) and is connected to the upper part of the connector a. The lower part of the connector a is connected to the movable rod a of the reducer (14). The bushing d is installed on the mounting plate b (28). The mounting plate b (28) is horizontally arranged between the mounting brackets a (50). There are two mounting brackets a (50). The mounting brackets a (50) are arranged vertically and parallel to the bottom of the fixed plate b (31). The mounting plate b (28) is provided with a mounting plate c (51). The reducer (14) is installed at the bottom of the mounting plate c (51). The reducer (14) is connected to the lifting servo (15).

6. The three-axis spiral pipe bending machine according to claim 1, characterized in that: The forming mold (6) has a placement groove on its surface, and an insertion hole is provided at one end of the inner side of the placement groove. The surface of the forming mold (6) is stepped, with more than two steps. The mold base (7) has an ejector seat (33), and the ejector seat (33) is below the ejector mechanism (9). The main shaft (8) is fitted with a bushing e (29), which is mounted on the frame (21). The lower ends of the main shaft (8) are provided with mounting grooves. The ejector mechanism (9) includes an ejector rod (32) and an ejector... The material cylinder has a top plate at the top of the ejector rod (32), a straight rod body in the middle, and a movable rod at the bottom. The movable rod is horizontally arranged in the mounting groove. A movable sleeve (35) is provided below the movable rod. The movable sleeve (35) is sleeved on the outside of the main shaft (8). The movable rod is connected to the rod bodies on both sides of the movable sleeve (35). The movable sleeve (35) is connected to the ejector cylinder. The bottom end of the main shaft (8) is connected to the main shaft servo (10) through the connector b. The bottom of the mounting bracket b (30) is provided with the main shaft servo (10).

7. The three-axis spiral pipe bending machine according to claim 1, characterized in that: The bushing e (29) has a bearing on the inner side of the top, a bearing fixing ring on the outer side of the bearing, and a mounting plate a at the bottom. The main shaft (8) has a mounting plate b at the top and bottom. The main shaft (8) has a mounting plate b and a mounting plate c (36) on the lower part. The mounting plate b is in contact with the mounting plate a. A return sleeve (34) is provided below the top plate.

8. The three-axis spiral pipe bending machine according to claim 1, characterized in that: The operation panel (17) is equipped with a touch screen (16) and a proximity switch (18), and the frame (21) is equipped with a push button switch (19).

9. The three-axis spiral pipe bending machine according to claim 1, characterized in that: The frame (21) includes a support and a fixing plate b (31), and the fixing plate b (31) is provided on the surface of the support.

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