CN110508704B - Automatic bending machine for metal section - Google Patents
Automatic bending machine for metal section Download PDFInfo
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- CN110508704B CN110508704B CN201910651167.7A CN201910651167A CN110508704B CN 110508704 B CN110508704 B CN 110508704B CN 201910651167 A CN201910651167 A CN 201910651167A CN 110508704 B CN110508704 B CN 110508704B
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- 238000005452 bending Methods 0.000 title claims abstract description 130
- 239000002184 metal Substances 0.000 title claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 238000009434 installation Methods 0.000 claims description 11
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 2
- 230000005484 gravity Effects 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 8
- 239000000463 material Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- 238000009740 moulding (composite fabrication) Methods 0.000 description 11
- 230000009471 action Effects 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000013000 roll bending Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013001 point bending Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
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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
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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
- B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends
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- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses an automatic bending machine for metal profiles, which comprises a working platform and a sliding rail, wherein the sliding rail is provided with a first sliding block and a second sliding block; a bending shaft and a female die are arranged on the second sliding block, and a first reset mechanism is arranged between the first sliding block and the second sliding block; a second reset mechanism is arranged between the second sliding block and the baffle; a pair of section fixtures is symmetrically arranged on two sides of the female die, and a plurality of clamps are arranged on the section fixtures; a plurality of positioning wheels are arranged on one side, far away from the male die, above the working platform, and each positioning wheel comprises a plurality of first positioning wheels and a plurality of second positioning wheels which are arranged in a staggered manner from front to back; the tail end of the working platform is provided with a positioning stop block, and the positioning stop block and the female die are positioned on the same horizontal axis; a travel switch is arranged on the positioning stop block; the bending machine is exquisite in structure, convenient to operate, safe, reliable, capable of conducting accurate bending forming processing, capable of processing closed products and wide in application range.
Description
Technical Field
The invention relates to the technical field of section bar bending equipment, in particular to an automatic bending machine for metal section bars.
Background
The section bar is a solid straight bar which is formed by plastic processing and has a certain section shape and size. The section bar is convenient to process and mass production, and has wide application in industrial products.
For products with three-dimensional structures, the sectional materials need to be connected in a welding, bolt connection or riveting mode so as to form the three-dimensional structures, and the sectional material bending process can not use the connecting mode and simultaneously keeps higher strength and more integrated appearance.
Bending of metal profiles is generally carried out by roll bending, stretch bending and press bending. The roll bending forming method is suitable for continuous bending of large-radius arcs, is more suitable for processing long-radian profiles such as rails and car frames, and is not suitable for profile frames of small structures such as consumer electronics and small household appliances; the stretch bending forming method is that the bending forming is completed by positioning the die at the inner side of the bending area and pulling the two sides of the bending area of the section bar, and all parts of the section bar are stressed unevenly in the bending process, the curvature of the bending forming part is uneven, and higher form and position tolerance precision is difficult to ensure; the press bending forming method needs to be carried out on a punch press or a special hydraulic press, is mainly used for single-point or multi-point bending of long structural members such as vehicle bumpers and guardrails, has large resilience in a bending area, needs to test a die for many times to determine the resilience precision of bending, and cannot be used for processing closed continuous bending of sectional materials.
For example, chinese utility model patent (publication No. CN205519109U) discloses an automatic round steel bending device in 2016, which comprises a motor, a driving screw, a support, a driving member, positioning wheels, a square punch, an operating platform, a fixing support and other auxiliary mechanisms, and is characterized in that the fixing support on the operating platform is provided with the motor, the motor transmits power to the driving screw, the driving screw drives the driving member to make linear motion, the other end of the driving member is provided with the square punch, the square punch bends the round steel, and one end of the operating platform is provided with two positioning wheels, thereby realizing the bending of the round steel. Although the automatic bending device can realize the bending of round steel, the bending precision is low, the stress of a workpiece is uneven, and the section with higher precision requirement cannot be bent.
In addition, after a workpiece is bent, the male die and the female die cannot be automatically reset by the conventional bending device, and the male die and the female die need to be independently controlled to reset, so that the conventional bending device is not convenient and fast.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides the automatic metal section bending machine which is exquisite in structure, convenient to operate, safe and reliable.
In order to achieve the purpose, the invention adopts the technical scheme that:
an automatic bending machine for metal profiles comprises a working platform, wherein a through groove is formed in the middle of the working platform, at least one pair of slide rails is arranged below the through groove, and two ends of each slide rail are fixed and connected to the bottom of the working platform through baffles respectively; a first sliding block and a plurality of second sliding blocks are sequentially arranged on the sliding rail, and a male die is arranged on the first sliding block; a horizontal mounting plate is arranged on the second sliding block, a bending shaft is arranged in the middle of the horizontal mounting plate, a female die is arranged on one side, far away from the male die, above the bending shaft, the male die and the female die are both positioned above the working platform and are positioned at the same height, the female die is fixed on the horizontal mounting plate through a female die support, and a first reset mechanism is arranged between the horizontal mounting plate and the first sliding block; a second reset mechanism is arranged between the second sliding block and the baffle;
a pair of section fixtures is symmetrically arranged on two sides of the female die, and the pair of section fixtures is sleeved on the bending shaft respectively and can rotate on the bending shaft; a plurality of clamps are arranged on one side of the section tool close to the male die;
a plurality of positioning wheels are arranged on one side, far away from the male die, above the working platform, and each positioning wheel comprises a plurality of first positioning wheels and a plurality of second positioning wheels which are arranged in a staggered manner from front to back, and the plurality of first positioning wheels and the plurality of second positioning wheels are symmetrically distributed on the two sides of the through groove along the horizontal central axis of the male die on the working platform respectively; the section fixture is arranged in an area between the male die and the positioning wheel;
the tail end of the through groove, which is positioned at one side of the female die, is provided with a positioning stop block, the positioning stop block is fixed above the working platform through a support, and the positioning stop block and the female die are positioned on the same horizontal axis; and a travel switch is arranged on the positioning stop block.
The automatic bending machine moves towards the female die through the male die, the male die extrudes the section in front of the female die to move backwards together, and the section is bent under the matching action of the positioning wheels; after the bending is finished, the male die, the female die and the section tool can automatically reset under the action of the first reset mechanism and the second reset mechanism.
The bending shaft, the female die and the female die support are arranged above the horizontal mounting plate together, so that the female die and the bending shaft can be ensured to move synchronously, the relative position is kept unchanged, and the accuracy of the bending part of the section bar is improved;
the profile tool is arranged, so that the profile can be attached and fixed on the profile tool, the profile is uniformly stressed in the bending process, and higher tolerance precision is guaranteed; in addition, once the section bar is accurately installed and clamped, the position of the section bar does not need to be adjusted in the bending process, the section bar does not need to be shaken or dislocated after being stressed, and the bending yield is improved;
the positioning wheels are symmetrically arranged along the bending center, so that the moving position of the section tool and the angle required to be bent can be better limited, and the accuracy of the bending angle of the section can be ensured;
the positioning stop block at the tail end of the through groove can prevent the female die from excessively moving backwards, and meanwhile, when the female die touches the travel switch on the positioning stop block, the travel switch can send an instruction to enable the power output device to stop outputting the stopping power or stop moving forwards and drive the male die 5 to start to reversely move back to the initial position.
Further, the female die support comprises a vertical support and a horizontal support, the vertical support is fixedly mounted on the horizontal mounting plate, one end of the horizontal support is fixed on the vertical support, and the other end of the horizontal support is arranged above the bending shaft; the female die is fixedly connected to the horizontal support, a pair of clamping blocks is further arranged on the horizontal support, and the pair of clamping blocks are located on two sides of the female die.
By adopting the structure of the female die support, the female die can be ensured to be stably fixed above the horizontal mounting plate, and the arrangement of the bending shaft can not be influenced; the pair of clamping blocks can prevent the female die from shaking towards two sides, and deviation is avoided when the female die is bent.
Furthermore, one end of the horizontal mounting plate, which is close to the first sliding block, is provided with a pair of symmetrically arranged guide rods, and the guide rods horizontally extend to the first sliding block; the first sliding block is provided with a pair of guide holes, the guide rod penetrates through the guide holes, and the tail end of the guide rod is provided with a limiting bolt; the first reset mechanism is arranged on the guide rod and is a first spring, and the first spring is sleeved on the guide rod.
The arrangement of the guide rod can ensure the accuracy of the moving direction of the male die, and the top end of the male die can be accurately aligned with the groove of the female die; when the bending machine is bent, the first sliding block moves towards the female die along the sliding rail and the guide rod to compress the first spring, the male die contacts the profile and is bent, the male die and the female die return, the distance between the female die and the male die returns to the initial position under the action of the first spring, the relative distance between the female die and the male die is kept consistent with that before bending, the next profile can be conveniently installed and clamped, and the distance between the female die and the male die does not need to be adjusted manually repeatedly.
Furthermore, the two second sliding blocks are sleeved on the sliding rail in a front-back parallel manner, and the horizontal mounting plate is horizontally arranged on the two second sliding blocks; the second reset mechanism is arranged on the slide rail between the second slide block and the baffle close to one side of the female die; the second reset mechanism is a second spring, the second spring is sleeved on the sliding rail, and two ends of the second spring are respectively and fixedly connected to the second sliding block and the baffle. Because more components are arranged above the horizontal mounting plate, in order to keep the balance and stability of the horizontal mounting plate, the horizontal mounting plate is supported and fixed by two second sliding blocks which are arranged in parallel; the second spring can reversely push the second sliding block to the initial position after the bending is finished.
Further, the section tool comprises an installation part and a connecting part which are integrally formed, the connecting part is in a disc shape with a hole, and the connecting part is sleeved on the bending shaft; the installation part is in a vertical plate shape, one surface of the installation part facing the male die is provided with a step, a movable block is screwed on the step, and the movable block is matched with the outer contour of the section; a bolt positioning block is arranged on the mounting part below the movable block, and a plurality of vertical positioning pins are arranged on the bolt positioning block; the clamp is arranged at the top of the mounting part; the installation department is kept away from the support column is still installed to the one end of connecting portion, the ball has been inlayed to the support column bottom, the ball with work platform's upper surface contact.
By adopting the section tool with the structure, the connecting part can be connected to the bending shaft through the shaft sleeve and rotates, and the section can be fixed by the mounting part until the section is bent and formed, so that the stress of the section is uniform; the arrangement of the movable blocks facilitates the selection of different movable blocks according to different types of section bars without replacing the whole section bar tool, thereby increasing the application range of the section bar tool, reducing the tool cost, and the movable blocks can be processed, customized and replaced according to the section shapes of different section bars; the positioning pin can accurately position the position of the profile, and the position of the profile can be accurately fixed under the matching of the clamp, so that the bending precision is improved; the support column can support the section tool and keep the section tool balanced, and the balls are beneficial to the section tool to move on the working platform.
Furthermore, a pair of parallel clamps are fixedly screwed above each section tool, and a chuck of each clamp abuts against the section.
The mode of fixing the section by the clamp can be replaced by clamping modes such as bolts, adhesive bonding, vacuum adsorption, electromagnetic adsorption, pins, rivets and the like.
Furthermore, the top end of the male die is a 90-degree folding angle, the top end of the female die is a 90-degree groove, and the top end of the male die supports against the section bar to be bent into the groove; the break angle and the groove are in arc transition; the center connecting line of the first positioning wheel and the second positioning wheel on the same side forms an angle of 45 degrees with the horizontal central axis. The section bar can be guaranteed to be accurately bent by 90 degrees, the male die and the female die are main dies for bending and forming, and the positioning wheels play a role in auxiliary forming, so that the accuracy of the bending angle is further guaranteed.
Furthermore, the positioning wheel comprises a wheel shaft and a wheel hub, the wheel hub is sleeved on the upper part of the wheel shaft, and the lower end of the wheel shaft is detachably connected to the working platform; the working platform is provided with a plurality of mounting holes, and the first positioning wheel and the second positioning wheel are respectively mounted on the mounting holes. The hub and the wheel shaft form bearing connection, and the hub rotates freely by taking the axis of the wheel shaft as the center; the detachable connection means here may be bolt connection, welding, adhesive bonding, vacuum adsorption, or electromagnetic adsorption; as a means of facilitating the replacement of the positioning wheel for different bending requirements, a preferred fixing means here is a screw connection. The connection mode of the wheel shaft and the wheel hub can be a rolling bearing and a sliding bearing; here, low-cost, easy-to-maintain plain bearings are preferred.
Further, the first reset mechanism and the second reset mechanism are respectively one of a spring, a spring reset mechanism, a gravity pulley or a push rod reset mechanism. When the relative position between the bending shaft and the guide rail is changed, energy can be stored, and after the thrust of the power output device on the bending shaft disappears, the reset mechanism releases the stored energy to drive the bending shaft and the female die to return to the original position.
Furthermore, the slide rails are a pair of slide rails arranged in parallel, a power output device is arranged below the slide rails, and a push rod of the power output device is fixedly connected with the lower end of the first slide block; the power output device is one of a motor, an electromagnet, a hydraulic oil cylinder, piezoelectric ceramics and a cylinder.
The working mode of the bending machine is as follows: fixing the section on a section tool through a clamp, starting a power output device, driving a first slide block to linearly move along a slide rail, so as to drive an upper male die to linearly move along the slide rail until the male die is contacted with the section, and simultaneously pushing the section and the section tool to move by the male die; the lower limiting end of the positioning wheel in front of the section tool does not move forwards continuously, the section tools on the left side and the right side rotate around the bending shaft, one end of the section tool close to the bending shaft moves forwards continuously, and the section begins to bend under the common acting force of the male die, the section tool and the female die; until the other end of the sectional material wage props against the rear positioning wheel, the top end of the male die pushes the sectional material into the groove of the female die completely, and the sectional material reaches the required bending angle.
When the required bending angle is reached, the female die is contacted with the positioning stop block and triggers the travel switch, the power output device stops advancing and drives the male die to start to move reversely to the initial position, and the male die is separated from the profile firstly; the bending shaft returns to the initial position together with the female die and the profile tool under the action of the second resetting mechanism, and the bent profile returns to the initial position along with the profile tool; in the resetting process, no limit is arranged in front of the working platform, the male die does not contact the section tool, the section tools on the left side and the right side still keep an included angle of 90 degrees, the clamp is loosened, and the section is taken down; and adjusting the section bar tool to be horizontal, clamping the next section bar, and continuously bending.
Compared with the prior art, the invention has the beneficial effects that: 1. the accuracy of bending and forming the section is ensured by the arrangement of the section tool and the positioning wheel; 2. the bending machine adopts a modular design, so that the design cost can be obviously reduced, the module switching can be conveniently carried out according to different sectional materials, bending angles, sizes and the like, and the flexible production is more convenient; 3. the bending machine can be used for accurately bending, forming and processing, and can be used for processing closed products; meanwhile, the machining efficiency is high, the automation control degree is high, and continuous, rapid and large-batch automatic production is convenient to carry out.
Drawings
Fig. 1 is a perspective structural view of an automatic bending machine for metal profiles according to the present invention.
Fig. 2 is a side view of an automatic bending machine for metal profiles according to the present invention;
fig. 3 is a top view of an automatic bending machine for metal profiles according to the present invention;
FIG. 4 is a schematic structural diagram of a female die support of the automatic bending machine for metal profiles according to the present invention;
fig. 5 is a partial sectional view at a-a of an automatic bending machine for metal profiles according to the present invention;
FIG. 6 is a schematic structural view of a section tool of an automatic bending machine for metal sections according to the present invention;
fig. 7 is a schematic view of a bending completion state of the automatic bending machine for metal profiles according to the present invention;
fig. 8 is a schematic view of an automatic bending machine for metal profiles for processing closed products according to the invention;
in the figure: 1. a working platform; 2. a through groove; 3. a slide rail; 4. a baffle plate; 5. a first slider; 6. a second slider; 7. a horizontal mounting plate; 8. bending the shaft; 9. a male die; 10. a female die; 11. a female die support; 1101. a vertical support; 1102. a horizontal support; 1103. a clamping block; 12. a section bar tooling; 1201. an installation part; 1202. a connecting portion; 1203. a loose block; 1204. a bolt positioning block; 1205. positioning pins; 1206. a support pillar; 1207. a ball bearing; 13. clamping; 1301. a chuck; 14. a section bar; 15. positioning wheels; 1501. a first positioning wheel; 1502. a second positioning wheel; 1503. a wheel axle; 1504. a hub; 16. positioning a stop block; 17. a support; 18. a guide bar; 19. a first spring; 20. a second spring; 21. a power take-off; 22. a push rod.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The first embodiment is as follows:
as shown in fig. 1 to 4, the automatic bending machine for metal profiles comprises a working platform 1, wherein a through groove 2 is formed in the middle of the working platform 1, a pair of slide rails 3 are arranged below the through groove 2, and two ends of each slide rail 3 are respectively fixed and connected to the bottom of the working platform 1 through a baffle 4; a first sliding block 5 and a plurality of second sliding blocks 6 are sequentially arranged on the sliding rail 3, and a male die 9 is screwed at the upper end of the first sliding block 5; a horizontal mounting plate 7 is arranged on the second sliding block 6, a bending shaft 8 is arranged in the middle of the horizontal mounting plate 7, a female die 10 is arranged on one side, far away from the male die 9, above the bending shaft 8, the groove part of the female die 10 is positioned above the bending shaft 8, the male die 9 and the female die 10 are both positioned above the working platform 1 and are positioned at the same height, the female die 10 is fixed on the horizontal mounting plate 7 through a female die support 11, and a first reset mechanism is arranged between the horizontal mounting plate 7 and the first sliding block 5; a second reset mechanism is arranged between the second sliding block 6 and the baffle 4 at the back;
a pair of profile tools 12 is symmetrically arranged on the left side and the right side of the female die 10, and the pair of profile tools 12 are respectively sleeved on the bending shaft 8 and can rotate around the bending shaft 8; a plurality of clamps 13 are arranged on one side of the section tool 12 close to the male die 9;
a plurality of positioning wheels 15 are arranged on one side, far away from the male die 9, above the working platform 1, the positioning wheels 15 comprise a pair of first positioning wheels 1501 and a plurality of second positioning wheels 1502 which are arranged in a staggered manner from front to back, and the pair of first positioning wheels 1501 and the pair of second positioning wheels 1502 are respectively and symmetrically distributed on the working platform 1 along the horizontal central axis of the male die 9 on two sides of the through groove 2; the section tool 12 is arranged in the area between the male die 9 and the positioning wheel 15;
the tail end of the through groove 2, which is positioned at one side of the female die 10, is provided with a positioning stop block 16, the positioning stop block 16 is fixedly screwed above the working platform 1 through a support 17, and the positioning stop block 16 and the female die 10 are positioned on the same horizontal axis; the positioning stop block 16 is provided with a travel switch.
The automatic bending machine moves towards the female die 10 through the male die 9, the male die 9 extrudes the section 14 in front of the female die 10 to move backwards together, and the section 14 is bent under the matching action of the positioning wheel 15; after the bending is finished, the male die, the female die and the section tool can automatically reset under the action of the first reset mechanism and the second reset mechanism.
The bending shaft, the female die and the female die support are arranged above the horizontal mounting plate together, so that the female die and the bending shaft can be ensured to move synchronously, the relative position is kept unchanged, and the accuracy of the bending part of the section bar is improved;
the profile tool is arranged, so that the profile can be attached and fixed on the profile tool, the profile is uniformly stressed in the bending process, and higher tolerance precision is guaranteed; in addition, once the section bar is accurately installed and clamped, the position of the section bar does not need to be adjusted in the bending process, the section bar does not need to be shaken or dislocated after being stressed, and the bending yield is improved;
the positioning wheels are symmetrically arranged along the bending center, so that the moving position of the section tool and the angle required to be bent can be better limited, and the accuracy of the bending angle of the section can be ensured;
the positioning stop block at the tail end of the through groove can prevent the female die from excessively moving backwards, and meanwhile, when the female die touches the travel switch on the positioning stop block, the travel switch can send an instruction to enable the power output device to stop outputting the stopping power or stop moving forwards and drive the male die 9 to start to reversely move back to the initial position.
Further, as shown in fig. 4, the female die holder 11 includes a vertical holder 1101 and a horizontal holder 1102, the vertical holder 1101 is fixedly installed on the horizontal installation plate 7, one end of the horizontal holder 1102 is fixedly screwed on the vertical holder 1101, the other end is disposed above the bending shaft 8, and the two are close to each other and not connected to each other; the female die 10 is fixedly screwed on the horizontal support 1102, a pair of clamping blocks 1103 is further arranged on the horizontal support 1102, and the pair of clamping blocks 1103 are located on two sides of the female die 10.
By adopting the structure of the female die support 11, the female die 10 can be stably fixed above the horizontal mounting plate 7 without influencing the arrangement of the bending shaft 8; when the section tool 12 is mounted on the bending shaft 8, the horizontal bracket 1102 can limit the section tool from coming out from the upper part; the pair of clamp blocks 1103 can prevent the female die 10 from shaking to both sides, and deviation is avoided when the female die is bent.
Furthermore, one end of the horizontal mounting plate 7, which is close to the first sliding block 5, is provided with a pair of symmetrically arranged guide rods 18, and the guide rods 18 horizontally extend to the first sliding block 5; the first sliding block 5 is provided with a pair of guide holes, the guide rod 18 penetrates through the guide holes, and the tail end of the guide rod is provided with a limiting bolt; the first reset mechanism is arranged on the guide rod 18, the first reset mechanism is a first spring 19, and the guide rod 18 is sleeved with the first spring 19. Wherein the length of the guide rod 18 can be set according to the stroke of the male die 9.
Furthermore, the two second sliding blocks 6 are sleeved on the sliding rail 3 in a front-back parallel manner, and the horizontal mounting plate 7 is horizontally mounted on the two second sliding blocks 6; the second reset mechanism is arranged on the slide rail between the second slide block 6 and the baffle 4 close to the rear part; the second reset mechanism is a second spring 20, the second spring 20 is sleeved on the slide rail 3, and two ends of the second spring are respectively and fixedly connected to the second slide block 6 and the baffle 4 which are close to the back. Because more components are arranged above the horizontal mounting plate, in order to keep the balance and stability of the horizontal mounting plate, the horizontal mounting plate is supported and fixed by two second sliding blocks which are arranged in parallel; the second spring can reversely push the second sliding block to the initial position after the bending is finished.
Further, the top end of the male die 9 is a 90-degree folded angle, the top end of the female die 10 is a 90-degree groove, and the top end of the male die 9 pushes the section bar 14 to be bent into the groove; the break angle and the groove are in arc transition; the central connecting line of the first positioning wheel 1501 and the second positioning wheel 1502 on the same side forms an angle of 45 degrees with the horizontal central axis. The section bar can be accurately bent by 90 degrees, the male die 9 and the female die 10 are main dies for bending and forming, and the positioning wheels play a role in auxiliary forming, so that the accuracy of the bending angle is further ensured.
Further, as shown in fig. 6, the positioning wheel 15 includes a wheel shaft 1503 and a wheel hub 1504, the wheel hub 1504 is sleeved on the upper portion of the wheel shaft 1503, and the lower end of the wheel shaft 1503 is detachably connected to the working platform 1; the working platform 1 is provided with a plurality of mounting holes, and the first positioning wheel 1501 and the second positioning wheel 1502 are respectively mounted on the mounting holes. The hub 1504 is connected to a wheel shaft 1503 in a bearing manner, and the hub 1504 freely rotates about the axis of the wheel shaft 1503.
Further, the slide rails 3 are a pair of slide rails arranged in parallel, a power output device 21 is arranged below the slide rails 3, and a push rod 22 of the power output device 21 is fixedly connected with the lower end of the first slide block 5; the power output device 21 is a hydraulic oil cylinder.
Example two:
the difference between the embodiment and the first embodiment is that a structure of the section tool is specifically described; specifically, as shown in fig. 6, the section tool 12 includes an installation portion 1201 and a connection portion 1202 which are integrally formed, the connection portion 1202 is a disc shape with a hole, and the connection portion 1202 is sleeved on the bending shaft 8; the mounting part 1201 is in a vertical plate shape, a step is arranged on one surface, facing the male die 9, of the mounting part 1201, a loose piece 1203 is connected to the step in a threaded mode, and the loose piece 1203 is matched with the outer contour of the section bar 14; a bolt positioning block 1204 is arranged on the mounting part 1201 below the movable block 1203, and a plurality of vertical positioning pins 1205 are arranged on the bolt positioning block 1204; the clamp 13 is mounted at the top of the mounting part 1201; a supporting column 1206 is further mounted at one end, far away from the connecting portion 1202, of the mounting portion 1201, a ball 1207 is embedded at the bottom of the supporting column 1206, and the ball 1207 is in contact with the upper surface of the working platform 1.
The difference of the section bar tools on the left and right sides lies in that the mounting part height of the section bar tool on the left side is greater than that of the section bar tool on the right side, the connecting part is sequentially sleeved on the bending shaft 8, and gaskets are arranged between the upper part and the lower part.
By adopting the section tool with the structure, the connecting part 1202 can be connected to the bending shaft 8 through the shaft sleeve and rotate, and the mounting part 1201 can fix the section 14 until the section is bent and formed, so that the stress of the section is uniform; the arrangement of the loose piece 1203 facilitates the selection of different loose pieces according to different types of sectional materials without replacing the whole sectional material tool 12, increases the application range of the sectional material tool 12, reduces the tool cost, and the loose piece 1203 can be processed, customized and replaced according to the section shapes of different sectional materials; the positioning pin 1205 can accurately position the position of the section bar 14, and the position of the section bar 14 can be accurately fixed under the cooperation of the clamp 13, so that the bending precision is improved; the support columns 1206 can support the section tool 12 and keep the section tool balanced, and the balls 1207 facilitate the movement of the section tool 12.
Further, a pair of parallel clamps 13 is fixedly screwed above each section tool 12, and a chuck 1301 of each clamp 13 abuts against the section 14.
Example three:
the embodiment is different from the first embodiment in that a bending completion state of the automatic metal profile bending machine is described, specifically, as shown in fig. 7, the male die 9 pushes the profile 14 and the female die 10 to move to the extreme positions, at this time, the profile 14 is bent under the action of the male die 9 and the female die 10, and the positions of the profile tooling 12 limited by the positioning wheels 15 on the left and right sides enable the middle of the profile 14 to be bent while the two sides are kept intact.
The positioning stop block 16 limits the further movement of the female die 10 and triggers a travel switch to stop the power output device 21 from continuing to advance; the second spring 20 and the first spring 19 are compressed and store the return energy; the male die 9 starts to return under the action of the return stroke of the power output device 21, and after the male die 9 is separated from the profile 14, the extrusion force of the profile 14, the female die 10 and the profile tool 12 disappears, and under the action of the elastic force of the second spring 20, the profile 14 is returned to the initial position together with the bending posture of the female die 10 and the profile tool 12, the clamp 13 is released, and the profile 14 is taken down, namely, the bending of the profile 14 is completed.
Due to the existence of the first spring 19, after the female die 10 recovers, the distance between the male die 9 and the female die 10 is still the initial distance; and after the section fixtures 12 on the two sides are leveled, continuing to bend for the next time.
Example four:
the automatic metal profile bending machine of this embodiment bends a profile product to be closed, specifically, as shown in fig. 8, the profile 14 is bent at four right angles in sequence to form a frame-shaped profile product. When the section is bent in sequence, the bent part cannot interfere with the bending machine; and under the clamping of section bar frock 12 and clamp 13, the part that has accomplished the bending can not produce the deformation, after the bending is accomplished, can also take off on section bar frock 12 wholly.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The automatic bending machine for the metal profiles comprises a working platform and is characterized in that a through groove is formed in the middle of the working platform, at least one pair of sliding rails is arranged below the through groove, and two ends of each sliding rail are fixed and connected to the bottom of the working platform through a baffle respectively; a first sliding block and a plurality of second sliding blocks are sequentially arranged on the sliding rail, and a male die is arranged on the first sliding block; a horizontal mounting plate is arranged on the second sliding block, a bending shaft is arranged in the middle of the horizontal mounting plate, a female die is arranged on one side, far away from the male die, above the bending shaft, the male die and the female die are both positioned above the working platform and are positioned at the same height, the female die is fixed on the horizontal mounting plate through a female die support, and a first reset mechanism is arranged between the horizontal mounting plate and the first sliding block; a second reset mechanism is arranged between the second sliding block and the baffle;
a pair of section fixtures is symmetrically arranged on two sides of the female die, and the pair of section fixtures is sleeved on the bending shaft respectively and can rotate on the bending shaft; a plurality of clamps are arranged on one side of the section tool close to the male die;
a plurality of positioning wheels are arranged on one side, far away from the male die, above the working platform, and comprise first positioning wheels and second positioning wheels which are arranged in a staggered manner from front to back, the first positioning wheels are symmetrically distributed on two sides of the through groove on the working platform by taking the horizontal central axis of the male die as a symmetry axis, and the second positioning wheels are symmetrically distributed on two sides of the through groove on the working platform by taking the horizontal central axis of the male die as a symmetry axis; the section fixture is arranged in an area between the male die and the positioning wheel;
the tail end of the through groove, which is positioned at one side of the female die, is provided with a positioning stop block, the positioning stop block is fixed above the working platform through a support, and the positioning stop block and the female die are positioned on the same horizontal axis; and a travel switch is arranged on the positioning stop block.
2. The automatic metal profile bending machine according to claim 1, wherein the master die support comprises a vertical support and a horizontal support, the vertical support is fixedly mounted on the horizontal mounting plate, one end of the horizontal support is fixed on the vertical support, and the other end of the horizontal support is arranged above the bending shaft; the female die is fixedly connected to the horizontal support, a pair of clamping blocks is further arranged on the horizontal support, and the pair of clamping blocks are located on two sides of the female die.
3. The automatic bending machine for metal profiles according to claim 1, characterized in that one end of the horizontal mounting plate, which is close to the first sliding block, is provided with a pair of symmetrically arranged guide rods, and the guide rods horizontally extend to the first sliding block; the first sliding block is provided with a pair of guide holes, the guide rod penetrates through the guide holes, and the tail end of the guide rod is provided with a limiting bolt; the first reset mechanism is arranged on the guide rod and is a first spring, and the first spring is sleeved on the guide rod.
4. The automatic bending machine for metal profiles according to claim 1, wherein the number of the second sliding blocks is two, the two second sliding blocks are sleeved on the sliding rail in a front-back parallel manner, and the horizontal mounting plate is horizontally mounted on the two second sliding blocks; the second reset mechanism is arranged on the slide rail between the second slide block and the baffle close to one side of the female die; the second reset mechanism is a second spring, the second spring is sleeved on the sliding rail, and two ends of the second spring are respectively and fixedly connected to the second sliding block and the baffle.
5. The automatic bending machine for metal profiles according to claim 1, wherein the profile tool comprises an installation part and a connection part which are integrally formed, the connection part is in a disc shape with holes, and the connection part is sleeved on the bending shaft; the installation part is in a vertical plate shape, one surface of the installation part facing the male die is provided with a step, a movable block is screwed on the step, and the movable block is matched with the outer contour of the section; a bolt positioning block is arranged on the mounting part below the movable block, and a plurality of vertical positioning pins are arranged on the bolt positioning block; the clamp is arranged at the top of the mounting part; the installation department is kept away from the support column is still installed to the one end of connecting portion, the ball has been inlayed to the support column bottom, the ball with work platform's upper surface contact.
6. The automatic bending machine for metal profiles according to claim 1, wherein a pair of parallel clamps are fixedly screwed above each profile tooling, and clamping heads of the clamps are abutted against the profiles.
7. The automatic bending machine for metal profiles according to claim 1, wherein the top end of the male die is a 90-degree folding angle, the top end of the female die is a 90-degree groove, and the top end of the male die pushes the profile to be bent into the groove; the bevel and the groove are in arc transition, and a central connecting line of the first positioning wheel and the second positioning wheel on the same side forms an angle of 45 degrees with a horizontal central axis of the male die.
8. The automatic bending machine for metal profiles according to claim 1, wherein the positioning wheel comprises a wheel shaft and a wheel hub, the wheel hub is sleeved on the upper portion of the wheel shaft, and the lower end of the wheel shaft is detachably connected to the working platform; the working platform is provided with a plurality of mounting holes, and the first positioning wheel and the second positioning wheel are respectively mounted on the mounting holes.
9. The automatic bending machine for metal profiles according to claim 1, wherein the first reset mechanism and the second reset mechanism are respectively one of a spring, a spring reset mechanism, a gravity pulley and a push rod reset mechanism.
10. The automatic bending machine for metal profiles according to claim 1, wherein the slide rails are a pair of slide rails arranged in parallel, a power output device is arranged below the slide rails, and a push rod of the power output device is fixedly connected with the lower end of the first slide block; the power output device is one of a motor, an electromagnet, a hydraulic oil cylinder, piezoelectric ceramics and a cylinder.
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| CN201910651167.7A CN110508704B (en) | 2019-07-18 | 2019-07-18 | Automatic bending machine for metal section |
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| CN201910651167.7A CN110508704B (en) | 2019-07-18 | 2019-07-18 | Automatic bending machine for metal section |
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| CN110899413A (en) * | 2019-12-02 | 2020-03-24 | 苏州汉默斯展示设备有限公司 | Automatic bending device for chassis pipe of handcart |
| CN112387833B (en) * | 2020-10-09 | 2022-07-01 | 青岛杰瑞工控技术有限公司 | Automatic bending mechanism for train sensor stop gasket |
| CN113118262A (en) * | 2021-04-23 | 2021-07-16 | 马鞍山众翌科技有限公司 | V-shaped horizontal bending die and bending method thereof |
| CN113275428B (en) * | 2021-05-28 | 2023-04-11 | 四川齐飞新材料科技有限公司 | Bending processing method for building aluminum profile |
| CN113828666A (en) * | 2021-09-26 | 2021-12-24 | 苏州美达王钢铁制品有限公司 | Hydraulic device for automatic bending forming |
| CN114367563B (en) * | 2021-12-27 | 2023-09-19 | 江苏翔宇电力装备制造有限公司 | Automatic top folding machine for extra-high voltage iron tower connecting piece |
| CN115647146B (en) * | 2022-10-28 | 2025-02-14 | 河北富工电气设备有限公司 | A U-shaped hook bending machine |
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| CN202199635U (en) * | 2011-07-15 | 2012-04-25 | 天津曹氏传动机械制造有限公司 | Vertical bending machine |
| US9636733B2 (en) * | 2014-09-23 | 2017-05-02 | Neal Technologies Ip Holdings, Llc | Method and apparatus for forming a helical tube bundle |
| CN204638818U (en) * | 2015-04-03 | 2015-09-16 | 苏州博众精工科技有限公司 | A kind of bending and molding device |
| GB2561698A (en) * | 2018-03-01 | 2018-10-24 | Crippa Spa | Machine for bending a thread-like material such as a pipe equipped with an aboard cutting device |
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