CN111389978B - Numerical control pipe bending machine - Google Patents
Numerical control pipe bending machine Download PDFInfo
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- CN111389978B CN111389978B CN202010252540.4A CN202010252540A CN111389978B CN 111389978 B CN111389978 B CN 111389978B CN 202010252540 A CN202010252540 A CN 202010252540A CN 111389978 B CN111389978 B CN 111389978B
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- bending
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- lathe bed
- support
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- 238000005452 bending Methods 0.000 title claims abstract description 74
- 230000007246 mechanism Effects 0.000 claims abstract description 73
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 29
- 238000012360 testing method Methods 0.000 claims abstract description 26
- 230000033001 locomotion Effects 0.000 claims abstract description 11
- 230000008961 swelling Effects 0.000 claims 1
- 238000005096 rolling process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/08—Bending rods, profiles, or tubes by passing between rollers or through a curved die
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/14—Bending rods, profiles, or tubes combined with measuring of bends or lengths
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention belongs to the technical field of pipe bending devices and solves the technical problem of pipe bending and forming of pipe by the pipe bending machine, and the pipe bending machine comprises a machine body, a transverse feeding mechanism, a bending mechanism and a follow-up mechanism, wherein a bending force testing mechanism is arranged at the head end of the machine body, and comprises a bracket, a testing frame and a pressure sensor; the bending mechanism is arranged in front of the middle of the lathe bed and comprises a support, a support frame, a swinging frame, a first speed reducer, a first motor and rollers; the follow-up mechanism is arranged at the rear part of the middle part of the lathe bed and comprises a second motor, a second speed reducer, a screw rod supporting seat, a screw rod and a screw nut. According to the numerical control pipe bending machine, through the bending mechanism driven by the servo motor servo reducer, the matching motion of the servo mechanism and the transverse feeding mechanism is controlled through the numerical control system, the pipe of the body of the workpiece to be bent is measured before bending, the same body is bent after the parameters are corrected, and the precise and efficient bending process of one-die multi-arc of rotary rolling bending is realized.
Description
Technical Field
The invention belongs to the technical field of pipe bending devices, and particularly relates to a numerical control pipe bending machine.
Background
Pipe bending machine used in the current market: in the prior art, most pipe bending machines use a die to form by central rotation and surrounding, and the die is replaced to realize a plurality of arc sections with different curvature radiuses on a workpiece, namely, one die for one arc, and one die for multiple arcs are difficult to realize. The production efficiency is low. In the prior art, a three-roller rolling mode is also used for manufacturing a pipe bending machine, but workpieces with smaller curvature radius are difficult to bend, and each workpiece blank generates different bending stress due to the large national standard tolerance range of sectional pipe fittings, welding and heat treatment in the pipe manufacturing process and the like, so that the bent workpieces have elastic deformation, poor consistency and need to be shaped after bending.
The bus body framework component is formed by bending rectangular pipes and is formed by a plurality of arc sections with different curvature radiuses in a plane. The workpiece bending requires a precise and stable bending process with continuously changing radian, and the formed workpiece requires a small deformation.
Disclosure of Invention
In order to overcome the defects of the prior art and solve the technical problem of pipe bending and forming of a pipe bending machine, the invention provides a bending mechanism which adopts a mixed structure form of rotary surrounding bending and roller rolling and forming and is driven by a servo motor servo reducer, and the bending mechanism realizes rotary rolling and precise bending and forming by controlling the matched movement of a follower mechanism and a transverse feeding mechanism through a numerical control system. The swinging frame with the idler wheels is driven by the servo motor servo reducer to do rotary motion, so that the arbitrary accurate change of the bending radius is easily realized. The numerical control pipe bending machine is used for measuring the pipe of the body of the workpiece to be bent before bending and carrying out bending processing on the same body after correcting parameters.
The invention is realized by the following technical scheme.
The utility model provides a numerical control bending machine, it includes lathe bed, infeed mechanism, bending mechanism and follower, infeed mechanism sets up in the tail end of lathe bed, and follower and bending mechanism set up in the middle part of lathe bed, and infeed mechanism drives the slider through ball screw drive mechanism and drives and wait to bend tubular product along lathe bed horizontal movement, wherein:
The bending force testing mechanism comprises a support, a testing frame and a pressure sensor, wherein the support is horizontally arranged below the head end of the lathe bed, the testing frame is arranged in the middle of the support, a servo motor ball screw telescopic rod is arranged on the testing frame, a pipe is jacked by the servo motor ball screw transmission mechanism, and the pressure sensor is arranged at the contact position of the head of the servo motor ball screw telescopic rod and the pipe to be bent;
the bending mechanism is arranged in front of the middle of the lathe bed and comprises a support, a support frame, a swinging frame, a first speed reducer, a first motor and rollers, wherein the support is horizontally and forwards arranged in the middle of the lathe bed, and two linear sliding rails are horizontally and forwards arranged on the side surface of one side of the support, which is close to the head end of the lathe bed, in parallel; the support frame is L-shaped, the support frame comprises a vertical part and a horizontal part, the inner cylinder penetrates through the vertical part and the support in the horizontal direction, the inner cylinder is a square tube or a round tube, the right end face of the inner cylinder is arranged in the outer cylinder, and the inner cylinder is arranged on the support through the outer cylinder; the right side face of the vertical part is arranged on the linear slide rail and slides back and forth along the linear slide rail, the upper part of the left side face of the vertical part is provided with an ear frame, the upper part of the horizontal part is vertically provided with a swinging frame, two roller shafts are arranged on the swinging frame in parallel along the vertical direction, rollers are arranged on the roller shafts, the end to be bent of the pipe to be bent sequentially passes through the inner barrel and a cavity between the two roller shafts, the upper part of the swinging frame between the two roller shafts is provided with a rotating shaft, and the upper part of the rotating shaft is arranged on the ear frame; a first motor is arranged below the horizontal part, a motor rotor of the first motor is connected with a power output shaft of a speed reducer, the power output shaft of the speed reducer is connected with a swinging frame, and the first motor drives the swinging frame to do rotary motion;
The servo mechanism is arranged at the rear of the middle of the lathe bed and comprises a second motor, a second speed reducer, a screw rod supporting seat, a ball screw and a screw nut, a motor rotor of the second motor is connected with a power input shaft of the second speed reducer, the second speed reducer is arranged on the rear side face of the screw rod supporting seat, the screw rod supporting seat is arranged below the middle of the lathe bed, a power output shaft of the second speed reducer is connected with the screw rod through an expansion connecting sleeve, a high-load bearing seat is arranged at the contact position of the screw rod supporting seat and the screw rod, the screw nut matched with the screw rod is arranged on the screw rod, the screw nut sleeve is fixedly arranged on a screw nut sleeve fixing plate, the screw nut sleeve fixing plate is arranged on the supporting frame, and the second motor drives the bending mechanism to horizontally reciprocate back and forth through a ball screw rod structure.
Further, the pressure sensor is electrically connected with the signal input end of the data processor and the PLC controller,
Further, the first motor is arranged vertically upwards, and the second motor is arranged horizontally forwards.
Compared with the prior art, the transmission device has the beneficial effects that:
According to the numerical control pipe bending machine provided by the invention, the numerical control system is used for controlling the matched movement of the bending mechanism and the follow-up mechanism driven by the servo motor servo reducer and the transverse feeding mechanism in a mixed structure mode of rotary bending and roller rolling, so that rotary rolling precision bending is realized. The swinging frame provided with the idler wheels in the bending mechanism performs rotary motion, so that the bending radius can be easily and accurately changed. The bending force testing mechanism is used for measuring the pipe of the body before bending the workpiece, the body is bent after correcting parameters, a one-die multi-arc precise and efficient bending process for bending the workpiece with any curvature radius in a variable arc manner is realized, and the forming precision and the processing efficiency of the workpiece are improved. The range of the applicable pipe is large, and the economic benefit is high.
Drawings
FIG. 1 is a schematic diagram of the overall front view structure of the present invention;
FIG. 2 is a schematic top view of FIG. 1;
FIG. 3 is a schematic left-hand view of the structure of FIG. 1;
FIG. 4 is a schematic diagram of the front view of the bending mechanism;
FIG. 5 is a schematic top view of FIG. 4;
FIG. 6 is a left side schematic view of FIG. 4;
FIG. 7 is a right side view of the schematic of FIG. 4;
FIG. 8 is a schematic diagram of a front view of a follower mechanism;
Fig. 9 is a schematic top view of fig. 8.
The bending machine comprises a lathe bed 1, a transverse feeding mechanism 2, a bending mechanism 3, a support seat 31, a linear guide rail 32, a supporting frame 33, an ear frame 34, a swinging frame 35, an outer cylinder 36, an inner cylinder 37, a first speed reducer 38, a first motor 39, a roller shaft 310, a rotating shaft 311, a roller 312, a follow-up mechanism 4, a second motor 41, a second speed reducer 42, a screw rod supporting seat 43, a high-load bearing seat 44, a screw rod 45, a screw rod 46, a screw rod 47, a screw sleeve fixing plate 48, an expansion connecting sleeve 49, a bending force testing mechanism 5, a support frame 51 and a testing frame 52.
Detailed Description
The following examples are illustrative of the invention and are not intended to limit the scope of the invention. Unless otherwise indicated, the examples were all under conventional experimental conditions. In addition, various modifications or improvements in the materials ingredients and amounts used in these embodiments will be apparent to those skilled in the art without departing from the spirit and scope of the invention, and are intended to be within the scope of the invention as claimed.
The numerical control pipe bender as shown in fig. 1 comprises a lathe bed 1, a transverse feeding mechanism 2, a bending mechanism 3 and a follow-up mechanism 4, wherein the transverse feeding mechanism 2 is arranged at the tail end of the lathe bed 1, the follow-up mechanism 3 and the bending mechanism 4 are arranged at the middle part of the lathe bed 1, and the transverse feeding mechanism 2 drives a sliding block to drive a pipe to be bent to horizontally move along the lathe bed 1 through a lead screw nut transmission mechanism, wherein:
the bending force testing device is characterized in that a bending force testing mechanism 5 is arranged at the head end of the lathe bed 1, the bending force testing mechanism comprises a support 51, a testing frame 52 and a pressure sensor, the support 51 is horizontally arranged below the head end of the lathe bed 1, the testing frame 52 is arranged in the middle of the support 51, a pipe to be bent is placed on the support 51 and the testing frame 52, a servo motor ball screw transmission mechanism is arranged on the testing frame 52, the servo motor ball screw is used for pushing the pipe, and the pressure sensor is arranged at the head of the servo motor ball screw;
The bending mechanism 3 is arranged in front of the middle of the lathe bed 1, the bending mechanism 3 comprises a support 31, a support frame 33, a swinging frame 35, a first speed reducer 38, a first motor 39 and a roller 312, the support 31 is horizontally and forwards arranged in the middle of the lathe bed 1, and two linear sliding rails 32 are horizontally and forwards arranged on the side surface of the support 31, which is close to the head end side of the lathe bed 1, in parallel; the support frame 33 is L-shaped, the support frame 33 comprises a vertical part and a horizontal part, the inner cylinder 37 penetrates through the vertical part and the support 31 along the horizontal direction, the inner cylinder 37 is a square tube or a round tube, the right end face of the inner cylinder 37 is arranged in the outer cylinder 36, and the inner cylinder 37 is arranged on the support 31 through the outer cylinder 36; the right side surface of the vertical part is arranged on the linear slide rail 32 and slides back and forth along the linear slide rail 32, the upper part of the left side surface of the vertical part is provided with an ear frame 34, the upper part of the horizontal part is vertically provided with a swinging frame 35, two roller shafts 310 are arranged on the swinging frame 35 in parallel along the vertical direction, roller wheels 312 are arranged on the roller shafts 310, the end to be bent of the pipe to be bent sequentially passes through a cavity between the inner cylinder 37 and the two roller wheels 312, the upper part of the swinging frame 35 between the two roller shafts 310 is provided with a rotating shaft 311, and the upper part of the rotating shaft 311 is arranged on the ear frame 34; a first motor 39 is arranged below the horizontal part, a motor rotor of the first motor 39 is connected with a power output shaft of a speed reducer 38, the power output shaft of the speed reducer 38 is connected with the swing frame 35, and the first motor 39 drives the swing frame 35 to perform rotary motion;
The follower mechanism 4 is arranged at the rear part of the middle part of the lathe bed 1, the follower mechanism 4 comprises a second motor 41, a second speed reducer 42, a screw rod supporting seat 43, a screw rod 45 and a screw rod 46, a motor rotor of the second motor 41 is connected with a power input shaft of the second speed reducer 42, the second speed reducer 42 is arranged on the rear side surface of the screw rod supporting seat 43, the screw rod supporting seat 43 is arranged below the middle part of the lathe bed, a power output shaft of the second speed reducer 42 is connected with the screw rod 45 through an expansion connecting sleeve 49, a high-load bearing seat 44 is arranged at the contact position of the screw rod supporting seat 43 and the screw rod 45, the screw rod 45 is provided with a screw rod 46 matched with the screw rod 45, the screw rod 46 is arranged on a screw rod sleeve 47, the screw rod sleeve 47 is fixedly arranged on a screw rod sleeve fixing plate 48, the screw rod sleeve fixing plate 48 is arranged on the supporting frame 33, and the second motor 41 drives the bending mechanism 3 to horizontally reciprocate back and forth through a screw rod structure.
Further, the pressure sensor is electrically connected with the signal input end of the data processor and the PLC.
Further, the first motor 39 is disposed vertically upward, and the second motor 41 is disposed horizontally forward.
The principle and the using process of the invention are as follows:
Firstly, placing the head end and the tail end of a pipe to be bent on a bracket 51, mounting the middle part of the pipe to be bent on a test frame 52, applying tangential force on the test frame 52, converting detected data signals by a pressure sensor through a data processor, and inputting the converted data signals into a PLC (programmable logic controller), wherein the PLC corrects displacement technological parameters of a bending mechanism 3, a follower mechanism 4 and a transverse feeding mechanism 2 according to the input pipe data;
secondly, taking down the pipe to be bent from the bending force testing mechanism 5, then installing the tail end of the pipe to be bent on the transverse feeding mechanism 2, enabling the head end of the pipe to be bent to sequentially penetrate through the cavity between the inner cylinder 37 and the two rollers 312, and enabling the transverse feeding mechanism 2 to drive the pipe to be bent to horizontally move along the lathe bed 1;
Thirdly, automatically starting a first motor 39 and a second motor 41, wherein the first motor 39 drives the swinging frame 35 to rotate, a roller 312 arranged on the swinging frame 35 bends the pipe to be bent, and simultaneously the second motor 41 drives the supporting frame 33 to perform longitudinal feeding movement along the horizontal forward direction to form the pipe to be bent;
Finally, the transverse feeding mechanism 2, the bending mechanism 3 and the follow-up mechanism 4 are reset, and the steps are repeated to carry out bending molding of the pipe to be bent next.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (1)
1. The utility model provides a numerical control bending machine, it includes lathe bed (1), infeed mechanism (2), bending mechanism (3) and follower (4), infeed mechanism (2) set up in the tail end of lathe bed (1), follower (4) and bending mechanism (3) set up in the middle part of lathe bed (1), infeed mechanism (2) drive the slider through ball screw nut drive mechanism and wait to bend tubular product along lathe bed (1) horizontal movement, its characterized in that:
The bending force testing device is characterized in that a bending force testing mechanism (5) is arranged at the head end of the lathe bed (1), the bending force testing mechanism comprises a support (51), a testing frame (52) and a pressure sensor, the support (51) is horizontally arranged below the head end of the lathe bed (1), the testing frame (52) is arranged in the middle of the support (51), a pipe to be bent is put on the support (51) and the testing frame (52), a servo motor ball screw telescopic rod is arranged on the testing frame (52), and the pressure sensor is arranged at the contact position of the head of the servo motor ball screw telescopic rod and the pipe to be bent and is electrically connected with the signal input end of the PLC;
The bending mechanism (3) is arranged in front of the middle of the lathe bed (1), the bending mechanism (3) comprises a support (31), a support frame (33) and a swinging frame (35), a first speed reducer (38), a first motor (39) and a roller (312), the support (31) is horizontally and forwards arranged in the middle of the lathe bed (1), and two linear slide rails (32) are horizontally and forwards arranged on the side surface of the support (31) close to one side of the head end of the lathe bed (1) in parallel; the support frame (33) is L-shaped, the support frame (33) comprises a vertical part and a horizontal part, an inner cylinder (37) penetrates through the vertical part and the support (31) along the horizontal direction, the inner cylinder (37) is a square pipe or a round pipe, the right end face of the inner cylinder (37) is arranged in an outer cylinder (36), and the inner cylinder (37) is arranged on the support (31) through the outer cylinder (36); the right side face of the vertical part is arranged on the linear sliding rail (32) and slides back and forth along the linear sliding rail (32), an ear frame (34) is arranged at the upper part of the left side face of the vertical part, a swinging frame (35) is vertically arranged above the horizontal part, two roller shafts (310) are arranged on the swinging frame (35) in parallel along the vertical direction, rollers (312) are arranged on the roller shafts (310), the end to be bent of the pipe to be bent sequentially passes through a cavity between the inner cylinder (37) and the two rollers (312), a rotating shaft (311) is arranged at the upper part of the swinging frame (35) between the two roller shafts (310), and the upper part of the rotating shaft (311) is arranged on the ear frame (34); a first motor (39) is arranged below the horizontal part, the first motor (39) is vertically arranged upwards, a motor rotor of the first motor (39) is connected with a power output shaft of a first speed reducer (38), the power output shaft of the first speed reducer (38) is connected with a swinging frame (35), and the first motor (39) drives the swinging frame (35) to do rotary motion;
The servo mechanism (4) is arranged at the rear of the middle of the lathe bed (1), the servo mechanism (4) comprises a second motor (41), a second speed reducer (42), a screw rod supporting seat (43), a screw rod (45) and a screw nut (46), the second motor (41) is horizontally arranged forwards, a motor rotor of the second motor (41) is connected with a power input shaft of the second speed reducer (42), the second speed reducer (42) is arranged on the rear side surface of the screw rod supporting seat (43), the screw rod supporting seat (43) is arranged below the middle of the lathe bed, a power output shaft of the second speed reducer (42) is connected with the screw rod (45) through a swelling connecting sleeve (49), a high-load bearing seat (44) is arranged at the contact position of the screw rod supporting seat (43) and the screw rod (45), the screw nut (46) matched with the screw rod (45) is arranged on a screw nut sleeve (47), the screw nut (47) is fixedly arranged on a screw nut fixing plate (48), the screw nut fixing plate (48) is arranged on the second supporting seat (33), and the screw nut (48) is arranged on the reciprocating mechanism to move horizontally through the ball screw nut (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010252540.4A CN111389978B (en) | 2020-04-01 | 2020-04-01 | Numerical control pipe bending machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010252540.4A CN111389978B (en) | 2020-04-01 | 2020-04-01 | Numerical control pipe bending machine |
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| Publication Number | Publication Date |
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| CN111389978A CN111389978A (en) | 2020-07-10 |
| CN111389978B true CN111389978B (en) | 2024-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010252540.4A Active CN111389978B (en) | 2020-04-01 | 2020-04-01 | Numerical control pipe bending machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114749535A (en) * | 2022-06-16 | 2022-07-15 | 太原市跃科科技有限公司 | Automatic multistage bending forming equipment of electric heating element pipeline |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212238736U (en) * | 2020-04-01 | 2020-12-29 | 太原泰立机电新技术有限公司 | Numerical control pipe bender |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100462982B1 (en) * | 2001-03-07 | 2004-12-23 | 비엘엠 에스.피.에이. | A bending machine for bending threadlike material such as tubes, rods, profiles or metal wire |
| CN102847762B (en) * | 2012-09-14 | 2014-11-05 | 太原泰立机电新技术有限公司 | Numerical control bending machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN212238736U (en) * | 2020-04-01 | 2020-12-29 | 太原泰立机电新技术有限公司 | Numerical control pipe bender |
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