Die splitting left and right bending machine head in pipe bending machine

Abstract

The utility model discloses a die-splitting left and right bending machine head in a pipe bending machine. The die-splitting left and right bending machine head comprises a machine head seat, a die-splitting component and a machine head component, the machine head component comprises a base, a pipe bending servo motor and a pipe bending planetary reducer are arranged on the base, a pipe bending main gear is arranged on an output shaft of the planetary reducer, a hollow pipe bending main shaft is rotationally arranged in the base, a lower rotating die shaft is rotationally arranged in the hollow pipe bending main shaft, and a lower die is installed on the upper portion of the lower rotating die shaft. The pipe bending auxiliary gear sleeves the periphery of the hollow pipe bending main shaft; a lower rotating die power device for driving the lower rotating die shaft to rotate is arranged on the base; a hollow pipe bending main shaft is arranged on the base, a pipe bending arm assembly with a movable clamping module is arranged on the hollow pipe bending main shaft, a lead screw is arranged on the base, a lead screw servo motor and a lead screw planetary reducer which are connected with each other are arranged on a fixing seat arranged on the base, and an output shaft of the lead screw planetary reducer is connected with the end of the lead screw through a coupler. The carriage is movably mounted on the base through a guide rail parallel to the screw rod, and a sliding nut of the screw rod is connected to the carriage to drive the carriage to move; and a sliding plate die is arranged on the carriage.

Description

Technical Field

[0001] The utility model relates to a pipe bending machine, in particular to a split-die left and right bending machine head in the pipe bending machine. Background Art

[0002] At present, there are many kinds of left and right bending machine head structures, but the split machine heads are all single bending structures, such as described in Patent 201320779541.X, a new type of bending mold and a bending machine using the mold: "The bending machine includes two bending devices 1, and the bending device 1 is arranged side by side between the feeding device and the traction device 2 along the left and right directions. Because one bending device 1 can only achieve bending in one direction, for this reason, two relatively arranged bending devices 1 are set in the bending machine to achieve the purpose of bending in two directions, so as to achieve the purpose of bending the pipe fitting 3 both clockwise and counterclockwise in one processing process." When forming left and right bends, a double head structure is required, which causes the structural size to increase exponentially and the operation efficiency to be low. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a split-mold left and right bending machine head in a pipe bending machine, a single machine head can realize left and right bending, and has a compact structure and high operating efficiency.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a split left and right bending head in a pipe bending machine, comprising a head seat, a split mold component is provided at the front upper end of the head seat; a head component is provided at the front lower end of the head seat;

[0005] The mold splitting component includes a mold splitting seat connected to the machine head seat, a hollow upper mold rotating shaft is rotatably provided on the mold splitting seat, an upper mold slide seat is movably penetrated in the upper mold rotating shaft through a sliding key; an upper mold is detachably provided at the bottom end of the upper mold slide seat; an upper mold rotating power device for driving the upper mold rotating shaft to rotate is provided on the upper mold splitting gear box;

[0006] An upper mold splitting gear box is provided on the mold splitting seat, a mold splitting cylinder is installed on the top of the upper mold splitting gear box, and a piston rod of the mold splitting cylinder extends into the upper mold splitting gear box. An installation cavity with an upper opening is provided in the upper mold slide seat, a mold closing drawer joint is rotatably provided in the installation cavity, and the piston rod end of the mold splitting cylinder is connected to the mold closing drawer joint; an upper mold rotating power device for driving the upper mold rotating gear to rotate is provided on the mold splitting seat;

[0007] The head component includes a base arranged at the front of the head seat, a pipe bending servo motor and a pipe bending planetary reducer connected together are arranged on the base, a pipe bending main gear is arranged on the output shaft of the planetary reducer, a hollow pipe bending main shaft is rotatably arranged in the base, a lower rotary mold shaft is rotatably arranged in the hollow pipe bending main shaft, and the lower mold is detachably mounted on the upper part of the lower rotary mold shaft; a pipe bending sub-gear meshing with the pipe bending main gear is sleeved on the outer periphery of the hollow pipe bending main shaft; a lower rotary mold power device for driving the lower rotary mold shaft to rotate is arranged on the base; a pipe bending arm assembly with a movable clamping module is arranged on the hollow pipe bending main shaft, and two stop blocks cooperating with the pipe bending arm assembly to limit the position of the pipe are arranged on the lower rotary mold shaft;

[0008] A screw rod which is arranged horizontally and perpendicular to the pipe to be processed is provided on the base, a screw servo motor and a screw planetary reducer which are connected to each other are provided on the fixed seat arranged on the base, and the output shaft of the screw planetary reducer is connected to the end of the screw rod through a coupling; a slide plate is movably installed on the base through a guide rail arranged parallel to the screw rod, and a sliding nut of the screw rod is connected to the slide plate to drive it to move; a slide plate mold is provided on the slide plate, and slide plate grooves which match the pipe to be processed are respectively provided on both sides of the slide plate mold; an auxiliary push slide plate seat which guides the slide plate mold is provided on the slide plate; an ejection cylinder which is parallel to the movement direction of the slide plate mold is provided on the slide plate, and the piston rod end of the ejection cylinder is connected to the slide plate mold.

[0009] As a preferred solution, the lower rotary mold power device includes a lower rotary mold gear box arranged at the lower part of the base, the lower rotary mold gear is installed on the lower part of the lower rotary mold shaft passing through the hollow bending pipe main shaft, and the lower rotary mold gear box is provided with a lower rotary mold planetary reducer and a lower rotary mold servo motor connected together. The output shaft of the lower rotary mold planetary reducer is connected to the lower rotary mold pinion arranged in the lower rotary mold gear box, and the lower rotary mold gear is meshed with the lower rotary mold pinion.

[0010] As a preferred solution, the upper mold power device includes an upper mold large gear arranged on the outer periphery of the upper mold shaft; an upper mold servo motor and an upper mold planetary reducer connected to each other and arranged on the upper mold splitting gear box, and the upper mold planetary reducer is provided with an upper mold small gear meshing with the upper mold large gear.

[0011] As a preferred solution, the upper mold rotating shaft is rotatably provided on the mold splitting seat via a pair of bearings.

[0012] As a preferred solution, the portion of the output shaft of the planetary reducer above the elbow main gear is connected to a bearing arranged in the base.

[0013] As a preferred solution, the lower mold is connected to the upper part of the lower rotary mold shaft through a key; a positioning boss is provided on the lower mold, and a positioning groove matching the positioning boss is provided on the lower rotary mold shaft.

[0014] The beneficial effects of the utility model are:

[0015] A screw rod which is arranged horizontally and perpendicular to the pipe to be processed is provided on the base, a screw servo motor and a screw planetary reducer which are connected to each other are provided on the fixed seat arranged on the base, and the output shaft of the screw planetary reducer is connected to the end of the screw rod through a coupling; the slide plate is movably installed on the base through a guide rail arranged parallel to the screw rod, and the sliding nut of the screw rod is connected to the slide plate to drive it to move; a skateboard mold is provided on the slide plate, and slide mold grooves which match the pipe to be processed are respectively provided on both sides of the skateboard mold; an auxiliary push skateboard seat which guides the skateboard mold is provided on the slide plate; an ejection cylinder which is parallel to the movement direction of the skateboard mold is provided on the slide plate, and the piston rod end of the ejection cylinder is connected to the skateboard mold, so that the structure of the machine head is compact, and a single machine head can realize the left and right bending functions, and can also complete the mold splitting action, and the overall work is efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the overall structure diagram.

[0017] Figure 2 It is a cross-sectional view of the mold separation component.

[0018] Figure 3 This is a cross-sectional view of the nose component.

[0019] Figure 4 It is a top view of the nose (left curved form).

[0020] Figure 5 It is a top view of the nose (right curved form).

[0021] In the figure: head base 1, split mold component 2, head component 3, split mold base 4, upper mold pinion 5, upper mold planetary reducer 6, upper mold servo motor 7, split mold cylinder 8, upper mold split gear box 9, upper mold large gear 10, mold clamping cylinder joint 11, upper mold shaft 12, upper mold slide 13, upper mold 14, lower mold 15, lower mold shaft 16, hollow pipe bending spindle 17, pipe bending sub-gear 18, lower mold large gear 19, lower The mold rotation gear box 20, the pipe bending servo motor 21, the pipe bending planetary reducer 22, the pipe bending main gear 23, the screw support seat 24, the screw 25, the drag plate 26, the stop block 27; the skateboard mold 28, the pipe bending arm assembly 29, the screw servo motor 30, the planetary reducer 31, the fixed seat 32, the ejection cylinder 33, the auxiliary push skateboard seat 34, the lower mold rotation pinion 35, the lower mold rotation planetary reducer 36, and the lower mold rotation servo motor 37. DETAILED DESCRIPTION

[0022] The specific implementation scheme of the utility model is described in detail below in conjunction with the accompanying drawings.

[0023] like Figure 1-5As shown, a split mold left and right bending head in a pipe bending machine includes a head base 1, a split mold component 2 is provided at the front upper end of the head base 1; a head component 3 is provided at the front lower end of the head base 1;

[0024] The mold splitting component 2 includes a mold splitting seat 4 connected to the head seat 1, a hollow upper mold rotating shaft 12 is rotatably provided on the mold splitting seat 4 through a pair of bearings, an upper mold slide 13 is movably penetrated in the upper mold rotating shaft 12 through a sliding key; an upper mold 14 is detachably provided at the bottom end of the upper mold slide 13; an upper mold rotating power device for driving the upper mold rotating shaft 12 to rotate is provided on the upper mold splitting gear box 9;

[0025] An upper mold splitting gear box 9 is provided on the mold splitting seat 4, a mold splitting cylinder 8 is installed on the top of the upper mold splitting gear box 9, and the piston rod of the mold splitting cylinder 8 extends into the upper mold splitting gear box 9, an installation cavity with an upper opening is provided in the upper mold slide 13, a mold closing drawer 11 is rotatably provided in the installation cavity, and the piston rod end of the mold splitting cylinder 8 is connected to the mold closing drawer 11; an upper mold rotating power device for driving the upper mold rotating gear 10 to rotate is provided on the mold splitting seat 4;

[0026] The upper mold rotation power device includes an upper mold rotation large gear 10 arranged on the outer periphery of the upper mold rotation shaft 12; an upper mold rotation servo motor 7 and an upper mold rotation planetary reducer 6 connected to each other and arranged on the upper mold splitting gear box 9, and the upper mold rotation planetary reducer 6 is provided with an upper mold rotation small gear 5 meshing with the upper mold rotation large gear 10.

[0027] The head component 3 includes a base arranged at the front of the head seat 1, on which a pipe bending servo motor 21 and a pipe bending planetary reducer 22 connected together are arranged, and a pipe bending main gear 23 is arranged on the output shaft of the planetary reducer 22, and the part of the output shaft of the pipe bending planetary reducer 22 above the pipe bending main gear 23 is connected to the bearing arranged in the base; a hollow pipe bending main shaft 17 is rotatably arranged in the base, a lower rotary mold shaft 16 is rotatably arranged in the hollow pipe bending main shaft 17, and the lower mold 15 is installed on the upper part of the lower rotary mold shaft 16; the lower mold 15 is connected to the upper part of the lower rotary mold shaft 16 through a key; a positioning boss is arranged on the lower mold 15, and a positioning groove matching the positioning boss is arranged on the lower rotary mold shaft 16. The pipe bending sub-gear 18 meshing with the pipe bending main gear 23 is sleeved on the outer periphery of the hollow pipe bending main shaft 17; a lower rotary mold power device driving the lower rotary mold shaft 16 to rotate is arranged on the base;

[0028] The lower rotary mold power device includes a lower rotary mold gear box 20 arranged at the lower part of the base, and the lower rotary mold gear 19 is installed on the lower part of the lower rotary mold shaft 16 passing through the hollow bending pipe main shaft 17. The lower rotary mold gear box 20 is provided with a lower rotary mold planetary reducer 36 and a lower rotary mold servo motor 37 connected together. The output shaft of the lower rotary mold planetary reducer 36 is connected to the lower rotary mold pinion 35 arranged in the lower rotary mold gear box 20, and the lower rotary mold gear 19 is meshed with the lower rotary mold pinion 35.

[0029] A tube bending arm assembly 29 with a movable clamping module is provided on the hollow tube bending main shaft 17, and two rotation stoppers 27 cooperating with the tube bending arm assembly 29 to limit the position of the tube are provided on the lower rotary die shaft 16.

[0030] A screw 25 which is arranged horizontally and perpendicular to the pipe to be processed is provided on the base through a screw support seat 24; a screw servo motor 30 and a screw planetary reducer 31 which are connected are provided on a fixed seat 32 arranged on the base; the output shaft of the screw planetary reducer is connected to the end of the screw 25 through a coupling; a carriage 26 is movably installed on the base through a guide rail arranged parallel to the screw 25, and a sliding nut of the screw 25 is connected to the carriage 26 to drive it to move; a skateboard mold 28 is provided on the carriage 26, and sliding mold grooves which match the pipe to be processed are respectively provided on both sides of the skateboard mold 28; an auxiliary push skateboard seat 34 for guiding the skateboard mold is provided on the carriage 26; a ejection cylinder 33 which is parallel to the movement direction of the skateboard mold 28 is provided on the carriage 26, and the piston rod end of the ejection cylinder 33 is connected to the skateboard mold.

[0031] Working process:

[0032] like Figure 2 In the process, the upper mold servo motor 7 provides power, and drives the upper mold gear 10 through the upper mold pinion 5 on the upper mold planetary reducer 6. The upper mold gear 10 transmits the torque to the upper mold shaft 12 to drive the upper mold slide 13. Finally, the torque of the upper mold servo motor 7 is transmitted to the upper mold 14; the mold separation cylinder 8 drives the upper mold slide 13 to move axially through the mold closing cylinder joint 11 and the bearing; the movement of the entire mold separation component 2 is ultimately the rotation and axial movement of the upper mold 14.

[0033] The bending pipe planetary reducer 22 drives the bending pipe main gear 23, and the transmission group composed of the bending pipe sub-gear 18 transmits power to the hollow bending pipe main shaft 17.

[0034] like Figure 3 In the figure, the lower rotary mold servo motor 37 provides power, and drives the lower rotary mold large gear 19 through the lower rotary mold small gear 35 on the lower rotary mold planetary reducer 36. The lower rotary mold large gear 19 transmits the torque to the lower rotary mold shaft 16, and finally transmits the torque to the lower mold 15; the bending servo motor 21 transmits the torque to the bending main gear 23 through the bending planetary reducer 22, and the gear set transmits the torque to the hollow bending main shaft 17, and the hollow bending main shaft 17 drives the bending arm to rotate.

[0035] like Figure 4 and Figure 5 In the process, the screw servo motor 30 drives the screw 25 to rotate through the planetary gear 31, thereby driving the carriage 26 to move axially. When a left bend is required, the bending arm assembly 29 rotates to Figure 4 Position, the lower die 15 and the upper die 14 are rotated to Figure 4The ejection cylinder 33 is then activated to push the slide plate mold 28 to the center of the bend. The mold separation cylinder 8 is pressed down to close the mold. The bending arm assembly 29 is clamped and stuck with the stop block 27 to form a whole. The bending arm assembly 29 rotates, and the upper mold 14 and the lower mold 15 also rotate at the same time to form a bending action. Right bending state Figure 5 shown.

[0036] The above-mentioned embodiments are only illustrative of the principles and effects of the invention, as well as some embodiments of its application, and are not intended to limit the invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the invention, and all of these belong to the protection scope of the invention.

Claims

1. A split left and right bending die head in a pipe bending machine, comprising a die head base (1), a split die component (2) being provided at the front upper end of the die head base (1); and a die head component (3) being provided at the front lower end of the die head base (1); The mold splitting component (2) comprises a mold splitting seat (4) connected to the machine head seat (1); a hollow upper mold rotating shaft (12) is rotatably provided on the mold splitting seat (4); an upper mold slide seat (13) is movably inserted in the upper mold rotating shaft (12) via a sliding key; an upper mold (14) is detachably provided at the bottom end of the upper mold slide seat (13); and an upper mold rotating power device for driving the upper mold rotating shaft (12) to rotate is provided on the upper mold splitting gear box (9); Features: The mold splitting seat (4) is provided with an upper mold splitting gear box (9), a mold splitting cylinder (8) is installed on the top of the upper mold splitting gear box (9) and the piston rod of the mold splitting cylinder (8) extends into the upper mold splitting gear box (9), an installation cavity with an upper opening is provided in the upper mold slide seat (13), a mold closing drawer (11) is rotatably provided in the installation cavity, and the piston rod end of the mold splitting cylinder (8) is connected to the mold closing drawer (11); an upper mold rotating power device for driving the upper mold rotating gear (10) to rotate is provided on the mold splitting seat (4); The head component (3) comprises a base arranged at the front of the head base (1), a pipe bending servo motor (21) and a pipe bending planetary reducer (22) connected together are arranged on the base, a pipe bending main gear (23) is arranged on the output shaft of the planetary reducer (22), a hollow pipe bending main shaft (17) is rotatably arranged in the base, a lower rotary mold shaft (16) is rotatably arranged in the hollow pipe bending main shaft (17), and the lower mold (15) is detachably mounted on the lower rotary mold shaft ( 16); a pipe bending sub-gear (18) meshing with the pipe bending main gear (23) is sleeved on the outer periphery of the hollow pipe bending main shaft (17); a lower rotary die power device for driving the lower rotary die shaft (16) to rotate is provided on the base; a pipe bending arm assembly (29) with a movable clamping module is provided on the hollow pipe bending main shaft (17), and two stop blocks (27) are provided on the lower rotary die shaft (16) for cooperating with the pipe bending arm assembly (29) to limit the position of the pipe; A screw rod (25) is arranged horizontally and perpendicular to the pipe to be processed on the base, a screw servo motor (30) and a screw planetary reducer (31) connected to each other are arranged on a fixed seat (32) arranged on the base, and the output shaft of the screw planetary reducer is connected to the end of the screw rod (25) through a coupling; a carriage (26) is movably installed on the base through a guide rail arranged parallel to the screw rod (25), and a sliding nut of the screw rod (25) is connected to the carriage (26) to drive it to move; a slide plate mold (28) is detachably provided on the carriage (26), and slide plate grooves matching the pipe to be processed are respectively provided on both sides of the slide plate mold (28); an auxiliary push slide plate seat (34) for guiding the slide plate mold (28) is provided on the carriage (26); an ejection cylinder (33) is provided on the carriage (26) parallel to the movement direction of the slide plate mold (28), and the piston rod end of the ejection cylinder (33) is connected to the slide plate mold.

2. The split left and right bending head in a pipe bending machine according to claim 1, characterized in that: The lower rotary mold power device comprises a lower rotary mold gear box (20) arranged at the lower part of the base, a lower rotary mold gear (19) is installed on the lower part of the lower rotary mold shaft (16) passing through the hollow curved pipe main shaft (17), the lower rotary mold gear box (20) is provided with a lower rotary mold planetary reducer (36) and a lower rotary mold servo motor (37) connected together, the output shaft of the lower rotary mold planetary reducer (36) is connected to a lower rotary mold pinion (35) arranged in the lower rotary mold gear box (20), and the lower rotary mold gear (19) is meshed with the lower rotary mold pinion (35).

3. The split left and right bending head in a pipe bending machine according to claim 1, characterized in that: The upper mold rotation power device comprises an upper mold rotation gear (10) arranged on the outer periphery of the upper mold rotation shaft (12); an upper mold rotation servo motor (7) and an upper mold rotation planetary reducer (6) connected to each other and arranged on the upper mold splitting gear box (9); and an upper mold rotation pinion (5) meshing with the upper mold rotation gear (10) is arranged on the upper mold rotation planetary reducer (6).

4. A split left and right bending head in a pipe bending machine according to any one of claims 1 to 3, characterized in that: The upper mold rotation shaft (12) is rotatably provided on the mold splitting seat (4) via a pair of bearings.

5. The split left and right bending head in a pipe bending machine as claimed in claim 4, characterized in that: The portion of the output shaft of the planetary reducer (22) above the elbow main gear (23) is connected to a bearing arranged in the base.

6. The split left and right bending head in a pipe bending machine as claimed in claim 5, characterized in that: The lower die (15) is connected to the upper part of the lower rotary die shaft (16) via a key; a positioning boss is provided on the lower die (15), and a positioning groove matched with the positioning boss is provided on the lower rotary die shaft (16).

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