CN111531069A - Five-head pure hydraulic hoop bending machine - Google Patents
Five-head pure hydraulic hoop bending machine Download PDFInfo
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- CN111531069A CN111531069A CN202010479082.8A CN202010479082A CN111531069A CN 111531069 A CN111531069 A CN 111531069A CN 202010479082 A CN202010479082 A CN 202010479082A CN 111531069 A CN111531069 A CN 111531069A
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- 238000005452 bending Methods 0.000 title claims abstract description 171
- 230000007246 mechanism Effects 0.000 claims abstract description 86
- 238000003825 pressing Methods 0.000 claims abstract description 60
- 230000033001 locomotion Effects 0.000 claims abstract description 7
- 229910000639 Spring steel Inorganic materials 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 11
- 239000003921 oil Substances 0.000 description 371
- 210000001331 nose Anatomy 0.000 description 25
- 229910000831 Steel Inorganic materials 0.000 description 20
- 239000010959 steel Substances 0.000 description 20
- 210000003128 head Anatomy 0.000 description 18
- 238000000034 method Methods 0.000 description 16
- 230000008569 process Effects 0.000 description 15
- 230000001105 regulatory effect Effects 0.000 description 12
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 9
- 239000007788 liquid Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 230000003014 reinforcing effect Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 6
- 238000005056 compaction Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000004904 shortening Methods 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F1/00—Bending wire other than coiling; Straightening wire
- B21F1/004—Bending wire other than coiling; Straightening wire by means of press-type tooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/32—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a five-handpiece pure hydraulic hoop bending machine which comprises a machine base, five handpieces, a first oil supply mechanism and a second oil supply mechanism, wherein the five handpieces are arranged on the machine base; the five machine heads are sequentially arranged side by side and movably connected to the machine base; a pressing mechanism is arranged below each machine head and comprises a pressing oil cylinder, and the output end of each pressing oil cylinder limits the movement of the machine head when extending to abut against the machine base; the machine head comprises a hoop bending mechanism, and the hoop bending mechanism comprises a hoop bending disc, a hoop bending shaft, a mandrel, a telescopic oil cylinder, a gear shaft and a bending oil cylinder; the elbow shaft is eccentrically arranged at the elbow disc; the mandrel penetrates through the circle center of the elbow disc until the head end of the mandrel is opposite to the elbow shaft; the telescopic oil cylinder drives the mandrel to stretch relative to the elbow plate; the gear shaft is sleeved at the tail end of the mandrel, and the end part of the gear shaft is connected with the elbow disc; the output end of the bending oil cylinder is provided with a first rack which is meshed with the teeth of the gear shaft. The whole machine is driven by hydraulic pressure, so that the invention has the advantages of simple structure, low failure rate and good locking effect.
Description
Technical Field
The invention relates to the field of steel bar processing equipment, in particular to a five-head pure hydraulic hoop bending machine.
Background
Most of the existing five-head hoop bending machines adopt hydraulic and pneumatic hybrid power, and have complex structure and high failure rate; the positioning of the machine head adopts a manual mechanical locking device, the operation is complex, and the positioning effect is poor; the bending angle of the hoop bending machine is controlled by a positioning trigger switch, the angle adjusting gear is fixed, more different bending angles cannot be obtained, the adjustment is completed only by manpower, a built-in encoder is partially adopted to detect the bending angle, and the installation, debugging and maintenance difficulty is higher.
Disclosure of Invention
Therefore, a five-head pure hydraulic hoop bending machine is needed to be provided, so that the problems that a non-head hoop bending machine in the prior art is complex in structure, high in failure rate and poor in manual locking effect are solved.
In order to achieve the purpose, the inventor provides a five-handpiece pure hydraulic hoop bending machine, which comprises a machine base, five handpieces, a first oil supply mechanism and a second oil supply mechanism;
the five machine heads are sequentially arranged side by side along the length direction of the machine base and can be movably connected to the machine base along the length direction of the machine base; a pressing mechanism is arranged below each machine head and comprises a pressing oil cylinder, and the output end of each pressing oil cylinder limits the movement of the machine head when extending to abut against the machine base;
the machine head comprises a hoop bending mechanism, and the hoop bending mechanism comprises a hoop bending disc, a hoop bending shaft, a mandrel, a telescopic oil cylinder, a gear shaft and a bending oil cylinder; the elbow shaft is eccentrically arranged at the elbow disc; the mandrel is arranged in parallel with the elbow shaft, and the mandrel penetrates through the circle center of the elbow disc until the head end of the mandrel is opposite to the elbow shaft; the output end of the telescopic oil cylinder is in transmission connection with the mandrel so as to drive the mandrel to stretch relative to the elbow plate; the gear shaft is sleeved at the tail end of the mandrel, and the end part of the gear shaft is connected with the elbow disc; the output end of the bending oil cylinder is provided with a first rack which is meshed with the teeth of the gear shaft, so that the gear shaft is driven to rotate along with the elbow disc;
the first oil supply mechanism is used for supplying oil to the bending oil cylinders of the head and the tail of the two machine heads and the five telescopic oil cylinders; the second oil supply mechanism is used for supplying oil to the middle three bending oil cylinders and the middle five pressing oil cylinders;
the five telescopic oil cylinders are respectively connected with the first oil supply mechanism through a first valve; the five pressing oil cylinders are connected with the second oil cylinder through a second valve.
As a preferable structure of the present invention, the head further includes a bending angle detection mechanism; the bending angle detection mechanism comprises an encoder and an encoding shaft, the encoding shaft is fixedly sleeved with an encoding gear, and the encoding gear is meshed with teeth of a gear shaft to synchronously rotate along with the gear shaft; the encoder is arranged at the circumference of the encoding shaft to read the rotation angle value.
As a preferred structure of the invention, the machine head further comprises a connecting seat, and the hoop bending mechanism is arranged on the connecting seat; the bottom of the connecting seat is provided with two opposite sliding parts, and the inner sides of the two sliding parts are respectively provided with a sliding groove for the base to pass through; the engine base penetrates between the two opposite sliding grooves; the pressing mechanism is positioned between the connecting seat and the machine base.
As a preferred structure of the invention, the section of the machine base is in an I shape, the machine base comprises a top plate, a bottom plate and a connecting plate, the top plate and the bottom plate are arranged opposite to each other up and down, and the connecting plate is vertically connected between the top plate and the bottom plate; the top plate penetrates between the sliding grooves of the two sliding pieces of the machine head.
As a preferred structure of the invention, the machine head also comprises an adjusting gear and a rotating shaft; the machine base is provided with a second rack along the length direction; the rotating shaft is axially and rotatably arranged on the sliding part; the adjusting gear is fixedly sleeved at the rotating shaft and is meshed with the second rack.
As a preferable structure of the present invention, the second rack is disposed at a bottom surface of the housing, and the adjustment gear is located below the second rack.
As a preferable structure of the present invention, the rotating shaft is provided with a rocking handle; or the rotary motor is in transmission connection with the rotating shaft and is used for driving the rotating shaft to drive the gear to rotate so as to drive the machine head to move along the second rack.
As a preferred structure of the invention, the pressing mechanism further comprises a spring steel plate and an oil cylinder bottom plate; the spring steel plate is positioned between the pressing oil cylinder and the connecting seat and is connected with the two sliding parts; the output end of the pressing oil cylinder is arranged towards the base, and the oil cylinder bottom plate is connected with the end face of the output end of the pressing oil cylinder.
As a preferable structure of the invention, a return elastic piece is arranged in the pressing oil cylinder and is used for driving the output end of the pressing oil cylinder to contract and return.
As a preferable structure of the present invention, the return elastic member is a wave spring.
Different from the prior art, the five-handpiece pure hydraulic hoop bending machine in the technical scheme comprises a machine base, five handpieces, a first oil supply mechanism and a second oil supply mechanism; a pressing mechanism is arranged below each machine head and comprises a pressing oil cylinder, and the output end of each pressing oil cylinder limits the movement of the machine head when extending to abut against the machine base; the aircraft nose includes curved hoop mechanism, curved hoop mechanism includes elbow dish, elbow axle, dabber, telescopic cylinder, gear shaft, crooked hydro-cylinder. Through changing the structure, make the course of work of complete machine all can adopt hydraulic drive, the flexible of dabber, the rotation of elbow dish and the locking of aircraft nose all adopt hydraulic drive promptly, realize that actuating system is single succinct, and then make the compact structure of complete machine succinct, reduced the fault rate, in addition, adopt the pressure cylinder locking aircraft nose, not only can simplify the operation of locking the aircraft nose, still make the locking positioning effect of aircraft nose good.
Drawings
Fig. 1 is a first structural diagram of a five-head pure hydraulic hoop bending machine according to an embodiment of the present invention;
fig. 2 is a second structural diagram of a five-head pure hydraulic hoop bending machine according to an embodiment of the present invention;
FIG. 3 is a block diagram of a handpiece in accordance with one embodiment of the present invention;
FIG. 4 is a partial block diagram of a handpiece in accordance with an embodiment of the present invention;
FIG. 5 is an exploded view of a portion of a handpiece in accordance with one embodiment of the present invention;
fig. 6 is a connection structure diagram of the connection seat and the pressing mechanism according to an embodiment of the present invention;
FIG. 7 is a view illustrating a structure of a second rack and an adjusting gear of the housing according to an embodiment of the present invention;
fig. 8 is a structure diagram of an oil path of a five-head pure hydraulic hoop bending machine according to an embodiment of the present invention;
fig. 9 is a diagram showing an oil supply structure of the first oil supply mechanism according to the embodiment of the present invention;
fig. 10 is a diagram illustrating an oil supply structure of the second oil supply mechanism according to the embodiment of the present invention.
Description of reference numerals:
1. a machine base;
100. a top plate; 101. a base plate; 102. a connecting plate;
2. a machine head;
200. a elbow plate; 201. a elbow shaft; 202. a mandrel; 203. a telescopic oil cylinder; 204. a gear shaft; 205. bending the oil cylinder; 2050. a first rack; 206. an encoder; 207. a code shaft; 208. a code gear; 209. a connecting seat; 210. a slider; 211. a tailstock; 212. a machine head box body; 213. a hoop-bending support block; 214. supporting the wear resistant sheet;
3. a pressing oil cylinder;
4. an adjusting gear;
5. a rotating shaft;
6. a second rack;
7. a rocking handle;
8. a spring steel plate;
9. a cylinder bottom plate;
1a, a first bending oil cylinder;
2a, a second bending oil cylinder;
3a, a telescopic oil cylinder;
4a, pressing the oil cylinder;
5a, a first oil pump;
6a, a first motor;
7a, a first oil tank;
8a, a second oil pump;
9a, a second motor;
10a, a second oil tank;
11a, a first main oil path pressure regulating valve;
12a, a first main valve;
13a, a second main oil path pressure regulating valve;
14a, a second main valve;
15a, a first bending electromagnetic directional valve;
16a, a telescopic electromagnetic directional valve;
17a, a superimposed pressure reducing valve;
18a, a cartridge valve;
19a, a second bending electromagnetic directional valve;
20a, a one-way throttle valve;
21a, a compression control valve.
Detailed Description
To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 1, 2 and 3, the invention provides a five-head pure hydraulic hoop bending machine, which is used for bending a steel bar into a bending state, particularly, realizes pure hydraulic drive, optimally designs a hydraulic station, makes the structure simpler and more compact, and realizes hydraulic locking of a head 2, so that the step of locking the head 2 is more convenient and the locking effect is good.
In a specific embodiment, the five-head pure hydraulic hoop bending machine comprises a machine base 1 and five machine heads 2, wherein the machine base 1 is a base of the five-head pure hydraulic hoop bending machine and is used for placing the machine heads 2; the machine head 2 is an actuating mechanism for bending the reinforcing steel bars, and can bend the reinforcing steel bars after being started.
Five aircraft noses 2 set up side by side in proper order along the length direction of frame 1, and all can be connected to on the frame 1 along the length direction removal of frame 1, through the interval of adjusting each aircraft nose 2, can make the reinforcing bar crooked not unidimensional, when using, if only need be crooked with the head and the tail of reinforcing bar, then can use wherein two aircraft noses 2 to carry out the operation, if need be crooked polygon with the reinforcing bar, then can use the organism that is located frame 1 both ends earlier to carry out the operation, then three aircraft nose 2 in the middle of using in proper order carry out crooked operation, then can process into different shapes with the reinforcing bar.
In order to realize that the machine head 2 is movably connected with the machine base 1, the machine base 1 may be provided with a slide rail, the machine head 2 may be provided with a slide block, and the slide block is movably arranged in the slide rail, in a preferred embodiment, the machine head 2 includes a connecting seat 209, two sliding parts 210 opposite to each other are arranged at the bottom of the connecting seat 209, and sliding grooves for the machine base 1 to pass through are formed in the inner sides of the two sliding parts 210; the machine base 1 penetrates between the two opposite sliding grooves, and the machine head 2 can move more stably due to the arrangement.
In a preferred embodiment, the section of the machine base 1 is in an I shape, the machine base 1 comprises a top plate 100, a bottom plate 101 and a connecting plate 102, the top plate 100 and the bottom plate 101 are arranged opposite to each other, and the connecting plate 102 is vertically connected between the top plate 100 and the bottom plate 101 and can be I-shaped steel; the top plate 100 is inserted between the sliding grooves of the two sliding members 210 of the machine head 2, so that the arrangement of the sliding members 210 is not affected when the machine base 1 is placed on a plane, the sliding members 210 are in a suspended state, and when the pressing mechanism does not clamp the machine head 2 and the machine base 1, the sliding members 210 can move freely.
Every 2 below of aircraft nose all are provided with hold-down mechanism, hold-down mechanism includes pressing cylinder 3, pressing cylinder 3's output is when extending to the top and leaning on frame 1, and restriction aircraft nose 2 removes, when the interval of adjacent aircraft nose 2 is adjusted to needs, then can control pressing cylinder 3's output shorten to leaving frame 1, and every aircraft nose 2 all realizes locking through pressing cylinder 3 promptly, and such locking mode is not only convenient, and the effect is good.
When the machine head 2 comprises the connecting seat 209 and is of the structure, a gap exists between the connecting seat 209 and the machine base 1, the pressing mechanism is arranged at the bottom of the connecting seat 209 and is positioned above the machine base 1, namely, the pressing mechanism is arranged at the gap and is positioned between the two sliding pieces 210, when the machine head 2 needs to be locked, the output end of the pressing oil cylinder 3 extends until the output end of the pressing oil cylinder 3 abuts against the machine base 1, the machine base 1 presses the sliding groove tightly, and at the moment, the sliding pieces 210 cannot move along the length direction of the machine base 1, namely, the effect of locking the machine head 2 is achieved; when the position of the machine head 2 needs to be adjusted, the output end of the pressing oil cylinder 3 is shortened until the output end of the pressing oil cylinder 3 leaves the machine base 1, and no external force except gravity is applied to the sliding groove by the machine base 1, and at the moment, the sliding piece 210 can freely move along the length direction of the machine base 1, namely, the effect of loosening the machine head 2 is achieved.
Referring to fig. 6, in a further embodiment, the pressing mechanism further includes a spring steel plate 8 and a cylinder bottom plate 9; the spring steel plate 8 is positioned between the pressing oil cylinder 3 and the connecting seat 209 and is connected with the two sliding pieces 210; the pressing oil cylinder 3 is arranged at the position of the spring steel plate 8, the output end of the pressing oil cylinder 3 is arranged towards the base 1, and the oil cylinder bottom plate 9 is positioned between the pressing oil cylinder 3 and the base 1 and can be connected with the end face of the output end of the pressing oil cylinder 3 (namely, a piston rod of the pressing oil cylinder). When the pressing oil cylinder 3 is started, the output end of the pressing oil cylinder 3 extends, the pressing oil cylinder 3 can drive the oil cylinder bottom plate 9 to be close to the machine base 1, when the oil cylinder bottom plate 9 abuts against the machine base 1, the pressing oil cylinder 3 continues to extend the output end, the reaction force of the oil cylinder bottom plate 9 is received at the moment, the spring steel plate 8 applies the thrust force far away from the steel plate direction to the sliding piece 210, the sliding groove of the sliding piece 210 and the machine base 1 form a pair of clamping, the sliding piece 210 and the machine base 1 cannot move mutually, and the locking operation of the machine head 2 is.
In one embodiment, a return elastic member is disposed in the pressing cylinder 3, and the return elastic member may be a wave spring. Specifically, the interior of the cylinder body of the compression oil cylinder 3 is divided into two closed spaces by the piston head, one space is a space for containing oil, the other space is a space for placing the return elastic element, when the oil is pressed into the cylinder body, the output end of the compression oil cylinder 3 extends out under the pushing action of the oil, the return elastic element is in a state of compressing and storing elastic potential energy, in the process that the oil is pumped away, the pushing force of the oil gradually disappears, and the return elastic element gradually releases the elastic potential energy until the output end of the compression oil cylinder 3 is completely retracted.
The head 2 includes a hoop bending mechanism, and the hoop bending mechanism is disposed on the connecting seat 209 when the base 1 includes the connecting seat 209. The hoop bending mechanism comprises a elbow disc 200, an elbow shaft 201, a mandrel 202, a telescopic oil cylinder 203, a gear shaft 204 and a bending oil cylinder 205, wherein the elbow disc 200 is used for mounting the elbow shaft 201, and drives the elbow shaft 201 to eccentrically rotate to bend the reinforcing steel bars when rotating; the elbow shaft 201 is used for bending a steel bar; the mandrel 202 is used for assisting the elbow shaft 201 in bending the steel bars, positioning the steel bars in bending operation, and clamping the steel bars together with the elbow shaft 201; the telescopic oil cylinder 203 is used for driving the mandrel 202 to contract to give way for the reinforcing steel bar when the reinforcing steel bar needs to be placed into the machine head 2, and after the reinforcing steel bar is placed into the machine head 2, the mandrel 202 is driven to extend out to clamp the reinforcing steel bar together with the elbow shaft 201; the gear shaft 204 is used for transmitting a rotating force for driving the elbow disc 200 to rotate; the bending oil cylinder 205 is used for driving the gear shaft 204 to rotate, and indirectly driving the elbow disc 200 to rotate.
The elbow shaft 201 is eccentrically arranged at the elbow disc 200; the core shaft 202 and the elbow shaft 201 are arranged in parallel, the core shaft 202 penetrates through the center of a circle of the elbow disc 200, the head end of the core shaft 202 is right opposite to the elbow shaft 201, specifically, a hole for the core shaft 202 to penetrate through is formed in the center of the circle of the elbow disc 200, and the diameter of the hole is larger than that of the core shaft 202, so that the core shaft 202 can freely penetrate through the hole. When a steel bar needs to be placed into the machine head 2, the mandrel 202 and the elbow shaft 201 are respectively positioned at two sides of the elbow disc 200, and after the steel bar is placed into the machine head 2, one end of the mandrel 202 passes through the hole until the end of the mandrel 202 and the elbow shaft 201 are positioned at the same side of the elbow disc 200 together.
After the mandrel 202 is extended, the elbow disc 200 is driven to rotate, the elbow shaft 201 is in the process of eccentric rotation, the elbow shaft 201 rotates around the mandrel 202, one point of the steel bar is limited by the mandrel 202, the end part of the steel bar moves around the fixed point under the pushing of the elbow shaft 201, the process is the process of bending the steel bar, and the bending angle of the steel bar depends on the eccentric rotation angle of the elbow shaft 201.
The output end of the telescopic oil cylinder 203 is in transmission connection with the mandrel 202 to drive the mandrel 202 to stretch and retract relative to the elbow disc 200, specifically, the output end of the telescopic oil cylinder 203 is in coaxial connection with the mandrel 202, when the output end of the telescopic oil cylinder 203 stretches, the mandrel 202 can be taken to pass through a hole of the elbow disc 200, and when the output end of the telescopic oil cylinder 203 shortens, the mandrel 202 can be taken to withdraw from the elbow disc 200 in a direction away from the elbow shaft 201.
Referring to fig. 3, in order to ensure the stability of the mandrel 202 when supporting the steel bar, in a further embodiment, a tail seat 211 is further provided, the tail seat 211 is disposed opposite to one side of the elbow disc 200 where the elbow shaft 201 is disposed, an opening through which the mandrel 202 passes is disposed at a position where the tail seat 211 is opposite to the mandrel 202, the telescopic cylinder 203 drives the mandrel 202 to pass through the elbow disc 200 until the end of the mandrel 202 continues to pass through the opening, at this time, both ends of the mandrel 202 are supported, so as to better support the steel bar.
Referring to fig. 4 and 5, the gear shaft 204 is sleeved at the tail end of the mandrel 202, and the inner diameter of the gear shaft 204 is larger than the diameter of the mandrel 202, so that the mandrel 202 can freely pass through the inner part of the gear shaft 204; the end of the gear shaft 204 is connected with the elbow disc 200, that is, the gear shaft 204 and the elbow disc 200 are integrally arranged, when the gear shaft 204 is forced to rotate, the elbow disc 200 rotates synchronously with the gear shaft, and as long as the gear shaft 204 is driven to rotate, the elbow disc 200 can be driven to rotate so as to bend the reinforcing steel bar.
The output end of the bending oil cylinder is provided with a first rack 2050 which is meshed with the teeth of the gear shaft 204, the gear shaft 204 is driven to drive the bending disc 200 to rotate, and through the structural arrangement, the linear motion of the oil cylinder is converted into the rotary motion, so that the bending disc 200 can be driven to rotate, the oil cylinder can be used for driving the bending disc 200 to rotate, finally, the whole machine can be driven by pure hydraulic pressure, the structure of the whole machine is simplified, the structure is more compact and concise, the probability of faults is reduced, and the driving performance of the oil cylinder is more stable.
During production, can be provided with aircraft nose box 212, gear shaft 204, the output 2050 of crooked hydro-cylinder, the output of flexible hydro-cylinder 203 all is located aircraft nose box 212, and gear shaft 204 passes through the bearing and rotatably is connected with aircraft nose box 212, then can play the effect of supporting to the hoop bending mechanism through aircraft nose box 212 like this, support elbow dish 200 to being in unsettled state, dabber 202 this moment, elbow axle 201, the axial of gear shaft 204 is the horizontal direction setting, in addition, through the closed design of aircraft nose box 212, can be effectively dustproof, it is waterproof, and then can avoid repeatedly adding lubricating oil. The external width of each machine head 2 is 120mm, and according to the most compact design, the single side length of one hoop forming can be 120mm x 120mm, the external dimension of the whole machine can be directly connected with a straightener with a rack for matching use, and the whole machine has beautiful and elegant appearance and is reliable and practical.
Referring to fig. 3, in order to stabilize and prevent the steel bars from shifting during the process of bending the steel bars, the connecting base 209 is provided with a hoop supporting block 213, the hoop supporting block 213 is disposed lower than the elbow plate 200, and a supporting wear-resistant piece 214 is disposed on the top surface of the hoop supporting block 213 to prevent the steel bars from wearing the hoop supporting block 213.
In a further embodiment, the handpiece 2 further comprises a bending angle detection mechanism; the bending angle detection mechanism comprises an encoder 206 and an encoding shaft 207, the encoding shaft 207 is fixedly sleeved with an encoding gear 208, the encoding gear 208 is meshed with teeth of the gear shaft 204 to synchronously rotate along with the gear shaft 204, specifically, the encoding shaft 207 penetrates into the handpiece box body 212 and is connected with the handpiece box body 212 through a bearing, and when the gear shaft 204 rotates, the encoding shaft 207 synchronously rotates along with the gear shaft 204; encoder 206 sets up in the circumference department of encoding shaft 207, when encoding shaft 207 is rotatory, then reads the corner numerical value, then can accurately acquire the angle of 2 crooked reinforcing bars of aircraft nose like this, and the angle selection of crooked reinforcing bar is various, can not be restricted, in addition, encoder 206 sets up in the circumference department of the one end that encoding shaft 207 did not penetrate aircraft nose box 212, adopts external promptly, and installation and debugging and maintenance are convenient.
When detecting that the angle that aircraft nose 2 is crooked accords with the required bending angle of reinforcing bar, then can stop the bending operation of aircraft nose 2, for the convenience of control, can be provided with the controller, like singlechip or PLC programmable controller, when aircraft nose 2 rotatory preset angle, then control bending cylinder 205 stop work.
Referring to fig. 7, in order to make the movement of the head 2 more stable and facilitate the adjustment of the position of the head 2, in the case that the head 2 is provided with the connecting seat 209 and the sliding member 210, in a further embodiment, the head 2 further includes an adjusting gear 4 and a rotating shaft 5; the machine base 1 is provided with a second rack 6 along the length direction; the rotating shaft 5 is axially and rotatably arranged at the sliding part 210, and specifically, the rotating shaft 5 can be arranged at the sliding part 210 through a bearing; the adjusting gear 4 is fixedly sleeved on the rotating shaft 5 and meshed with the second rack 6. Through rotatory adjusting gear 4, adjusting gear 4 can take connecting seat 209, slider 210 and the curved hoop mechanism to remove along second rack 6 together, can avoid whole aircraft nose 2 to warp at the removal in-process, and the user only need rotate adjusting gear 4 then can accomplish the work of adjusting adjacent aircraft nose 2 interval.
The rotating shaft 5 can be manually rotated, and in order to facilitate operation, the rotating shaft 5 can be provided with a rocking handle 7; or can be driven by electricity, that is, the device further comprises a rotating motor and a speed reducer, wherein the rotating motor is in transmission connection with the rotating shaft 5 through the speed reducer and is used for driving the rotating shaft 5 to rotate with a gear so as to drive the machine head 2 to move along the second rack 6.
In order to avoid the second rack 6 and the adjusting gear 4 from depositing dust, the base 1 is preferably configured in the shape described above, in which the second rack 6 is disposed at the bottom surface of the base 1, the adjusting gear 4 is located below the second rack 6, and dust or rainwater can directly fall off the ground.
Referring to fig. 8, the five-head pure hydraulic hoop bending machine further includes a first oil supply mechanism and a second oil supply mechanism, and the five bending oil cylinders, the five telescopic oil cylinders, the five pressing oil cylinders, the first oil supply mechanism and the second oil supply mechanism together form a hydraulic system of the five-head pure hydraulic hoop bending machine. For convenience of description, the bending cylinders of the head and the tail of the two machine heads are called as first bending cylinders, and the bending cylinders of the middle three machine heads are called as second bending cylinders.
Referring to fig. 9, the first oil supply mechanism is used for supplying oil to the two first bending oil cylinders 1a and the five telescopic oil cylinders 3 a; referring to fig. 10, the second oil supply mechanism is used for supplying oil to the three second bending cylinders 2a and the five pressing cylinders 4 a. Wherein, the five telescopic oil cylinders 3a are respectively connected with the first oil supply mechanism through a first valve; the five hold-down cylinders 4a are connected to the second cylinder via a second valve.
The working state of the five-head pure hydraulic hoop bending machine comprises that only two heads from head to tail are used for hoop bending operation, and more than two (such as five) heads are used for sequential hoop bending operation, so that the two first bending oil cylinders 1a are independently supplied with oil through the first oil supply mechanism, the three second bending oil cylinders 2a are independently supplied with oil through the second oil supply mechanism, and thus, the two first bending oil cylinders 1a can be independently controlled, and the three second bending oil cylinders 2a can be independently controlled.
If only two heads are used for hoop bending operation, after the position adjustment of the heads is completed and the heads are clamped tightly, only the first oil supply mechanism can be used for oil supply operation, and when the first oil supply mechanism is used for oil supply operation, the two first bending oil cylinders 1a synchronously operate; in addition, because the five telescopic oil cylinders 3a are respectively connected with the first oil supply mechanism through one first valve, when only two first bending oil cylinders 1a are operated, only the first valves of the two telescopic oil cylinders 3a corresponding to the first bending oil cylinders 1a can be opened, so that the first oil supply mechanism can independently supply oil to the two telescopic oil cylinders 3a to cooperate with the two first bending oil cylinders 1a to operate.
If the five machine heads are subjected to successive hoop bending operation, after the position adjustment of the machine heads is completed and the machine heads are clamped tightly, the first oil supply mechanism and the second oil supply mechanism are started successively according to the bending process of the steel bars, firstly, the first oil supply mechanism is subjected to oil supply operation, the two first bending oil cylinders 1a are subjected to synchronous operation, and at the moment, only the first valves of the two telescopic oil cylinders 3a corresponding to the first bending oil cylinders 1a are opened, so that the first oil supply mechanism can independently supply oil to the two telescopic oil cylinders 3a to be matched with the two first bending oil cylinders 1a for operation; after the two ends of the reinforcing steel bar are bent, the second oil supply mechanism is started, when the second oil supply mechanism performs oil supply operation, the three second bending oil cylinders 2a perform synchronous operation, at the moment, only the first valves of the three telescopic oil cylinders 3a corresponding to the second bending oil cylinders 2a are opened, so that the first oil supply mechanism independently supplies oil to the three telescopic oil cylinders 3a to match with the three second bending oil cylinders 2a to perform operation.
Because the five pressing oil cylinders 4a are connected with the second oil cylinder through the second valve, when the second oil supply mechanism is started, the five pressing oil cylinders 4a can be driven to respectively lock the five machine heads as long as the second valve is opened.
In a further embodiment, the first oil supply mechanism includes a first oil pump 5a and a first oil tank 7a, oil is stored in the first oil tank 7a, an oil inlet of the first oil pump 5a is connected with the first oil tank 7a, specifically, the first oil pump 5a is driven by a first motor 6a, and when the first motor 6a is started, the first oil pump 5a can work to pump the oil in the first oil tank 7a to each oil path; the oil inlets of the first bending oil cylinder 1a and the first valve are connected with the oil outlet hole of the first oil pump 5a, specifically, the oil inlets are connected through oil pipes, the oil way connected out of the oil outlet hole of the first oil pump 5a is a main oil way, the oil ways connected to the main oil way through the first bending oil cylinder 1a and the first valve are branch oil ways, and each branch oil way is connected with the main oil way through an oil distribution block.
Similarly, the second oil supply mechanism includes a second oil pump 8a and a second oil tank 10a, the second oil tank 10a also stores oil, an oil inlet of the second oil pump 8a is connected to the second oil tank 10a, specifically, the second oil pump 8a is driven by a second motor 9a, and when the second motor 9a is started, the second oil pump 8a can be operated to pump the oil in the second oil tank 10a to each oil passage. The second oil tank can be the same as the first oil tank, namely the first oil pump and the second oil pump share one oil tank; oil inlets of the second bending oil cylinder 2a and the second valve are connected with an oil outlet of the second oil pump 8a, specifically, the oil inlets are connected through oil pipes, an oil way connected from the oil outlet of the second oil pump 8a is a main oil way, oil ways connected to the main oil way through the second bending oil cylinder 2a and the second valve are branch oil ways, and each branch oil way is connected with the main oil way through an oil distribution block.
In one embodiment, the oil outlet of the first oil pump 5a is provided with a first main oil passage pressure regulating valve 11a and a first main valve 12a in this order; the first main oil path pressure regulating valve 11a is used for regulating the pressure of the oil pumped by the first oil pump 5a so as to prevent an oil pipe or other parts for receiving the oil from being damaged; the first main valve 12a is used to open or close a main oil passage of the first oil pump 5 a. The oil outlet of the first oil pump 5a is connected with the oil inlet of the first main oil line pressure regulating valve 11a, the oil outlet of the first oil line pressure regulating valve is connected with the P interface of the first main valve 12a, and the A interface of the main valve of the first oil pump 5a is connected with the oil inlets of the first bending oil cylinder 1a and the first valve.
The oil outlet hole of the second oil pump 8a is sequentially provided with a second main oil way pressure regulating valve 13a and a first main valve 12 a; the second main oil path pressure regulating valve 13a is used for regulating the pressure of the oil pumped by the second oil pump 8a so as to prevent an oil pipe or other parts for receiving the oil from being damaged; the second main valve 14a is used to open or close a main oil passage of the second oil pump 8 a. The oil outlet of the second oil pump 8a is connected to the oil inlet of the second main oil line pressure regulating valve 13a, the oil outlet of the second oil line pressure regulating valve is connected to the P-port of the second main valve 14a and the oil inlet of the second valve, and the a-port of the main valve of the second oil pump 8a is connected to the second bending oil cylinder 2 a.
In order to achieve both the extension of the output end of the first bending cylinder 1a and the shortening of the output end of the first bending cylinder 1a by means of the oil, so as to achieve the normal rotation and the revolution of the bending disk, in a further embodiment, each first bending cylinder 1a is connected to the first oil supply mechanism by a first bending electromagnetic directional valve 15a, and the first bending electromagnetic directional valve 15a is used for changing the direction of the first oil supply mechanism supplying oil to the first bending cylinder 1 a. Specifically, a P port of the first bending electromagnetic directional valve 15a is connected to an oil outlet of the first oil pump 5a, and a T port of the first bending electromagnetic directional valve 15a is connected to the first oil tank 7a, wherein the T port of the first bending electromagnetic directional valve 15a may be connected to one first oil tank 7a together with an oil inlet of the first oil pump 5a, or two first oil tanks 7a may be provided, and the T port of the first bending electromagnetic directional valve 15a may be connected to two first oil tanks 7a together with an oil inlet of the first oil pump 5 a; the interface A and the interface B of the first bending electromagnetic directional valve 15a are respectively connected with the rodless cavity and the rod cavity of the first bending oil cylinder 1 a.
When the output end of the first bending oil cylinder 1a is required to extend, the direction of the first oil supply mechanism for supplying oil to the first bending oil cylinder 1a is as follows: the oil pumped by the first oil pump 5a enters the interface A from the interface P and then enters the rodless cavity of the first bending oil cylinder 1a through the interface A, and in the process, the oil in the rod cavity of the first bending oil cylinder 1a flows to the interface B under the extrusion action of the oil in the rodless cavity, then enters the interface T from the interface B, and finally flows back to the first oil tank 7a from the interface T. When the output end of the first bending oil cylinder 1a needs to be shortened, the direction of the first oil supply mechanism for supplying oil to the first bending oil cylinder 1a is as follows: the oil pumped by the first oil pump 5a enters the interface B from the interface P, then enters the rod cavity of the first bending oil cylinder 1a through the interface B, and in the process, the oil in the rodless cavity of the first bending oil cylinder 1a flows to the interface A under the extrusion action of the oil in the rod cavity, then enters the interface T from the interface A, and finally flows back to the first oil tank 7a from the interface T.
In order to make the two telescopic cylinders 3a corresponding to the two first bending cylinders 1a work with the two first bending cylinders 1a, in a further embodiment, the B ports of the two first bending electromagnetic directional valves 15a are also connected with the two telescopic cylinders 3a respectively.
In a further embodiment, the first valve is a cartridge valve 18a for making or breaking an oil path. In addition, in order to realize the extension of the output end of the telescopic oil cylinder 3a and the shortening of the output end of the rope oil cylinder through oil, the telescopic electromagnetic directional control device also comprises a telescopic electromagnetic directional valve 16 a; a P connector of the telescopic electromagnetic directional valve 16a is connected with an oil outlet hole of the first oil pump 5a, a T connector of the telescopic electromagnetic directional valve 16a is connected with the first oil tank 7a, similarly, the T connector of the telescopic electromagnetic directional valve 16a can be connected with one first oil tank 7a together with an oil inlet of the first oil pump 5a, or two first oil tanks 7a can be arranged, and the T connectors of the telescopic electromagnetic directional valve 16a can be connected with the two first oil tanks 7a together with the oil inlet of the first oil pump 5 a; the A interface of the telescopic electromagnetic directional valve 16a is connected with the rod cavities of the five telescopic oil cylinders 3 a; the interface B of the telescopic electromagnetic directional valve 16a is connected with the rodless cavities of the five telescopic oil cylinders 3 a; the cartridge valve 18a is positioned at an oil path connecting a rodless cavity of the telescopic oil cylinder 3a and a port B of the telescopic electromagnetic directional valve 16 a.
Similarly, when the output end of the telescopic cylinder 3a needs to be shortened, the first oil supply mechanism supplies oil to the telescopic cylinder 3a in the following directions: the oil liquid pumped by the first oil pump 5a enters the interface A from the interface P, then enters the rod cavity of the telescopic oil cylinder 3a through the interface A, and in the process, the oil liquid in the rodless cavity of the telescopic oil cylinder 3a flows to the interface B under the extrusion effect of the oil liquid in the rod cavity, then enters the interface T from the interface B, and finally flows back to the first oil tank 7a from the interface T. When the output end of the first bending oil cylinder 1a is required to extend, the direction of oil supply of the first oil supply mechanism for the telescopic oil cylinder 3a is as follows: the oil liquid pumped by the first oil pump 5a enters the interface B from the interface P, then enters the rodless cavity of the telescopic oil cylinder 3a through the interface B, and in the process, the oil liquid in the rod cavity of the telescopic oil cylinder 3a flows to the interface A under the extrusion action of the oil liquid in the rodless cavity, then enters the interface T from the interface A, and finally flows back to the first oil tank 7a from the interface T.
In a further embodiment, a superposition type pressure reducing valve 17a is further arranged at an oil path where the rodless cavity of each telescopic oil cylinder 3a is connected with the interface B of the telescopic electromagnetic directional valve 16 a.
In order to achieve both the extension of the output end of the second bending cylinder 2a and the shortening of the output end of the second bending cylinder 2a by means of the oil, so as to achieve the normal rotation and the revolution of the bending disk, in a further embodiment, each of the second bending cylinders 2a is connected to the second oil supply mechanism by means of a second bending electromagnetic directional valve 19a, respectively, said second bending electromagnetic directional valve 19a being adapted to change the direction in which the second oil supply mechanism supplies oil to the second bending cylinder 2 a. Specifically, a P port of the second bending electromagnetic directional valve 19a is connected with an oil outlet of the second oil pump 8a, and a T port of the second bending electromagnetic directional valve 19a is connected with the second oil tank 10 a; the T-port of the second curved electromagnetic directional valve 19a may be connected to one second oil tank 10a together with the oil inlet of the second oil pump 8a, or two second oil tanks 10a may be provided, and the T-port of the second curved electromagnetic directional valve 19a may be connected to two second oil tanks 10a together with the oil inlet of the second oil pump 8 a; the interface A and the interface B of the second bending electromagnetic directional valve 19a are respectively connected with the rodless cavity and the rod cavity of the second bending oil cylinder 2 a.
Similarly, when the output end of the second bending cylinder 2a needs to be extended, the second oil supply mechanism supplies oil to the second bending cylinder 2a in the following directions: the oil pumped by the second oil pump 8a enters the interface A from the interface P and then enters the rodless cavity of the first bending oil cylinder 1a through the interface A, and in the process, the oil in the rod cavity of the first bending oil cylinder 1a flows to the interface B under the extrusion action of the oil in the rodless cavity, then enters the interface T from the interface B, and finally flows back to the second oil tank 10a from the interface T. When the output end of the second bending oil cylinder 2a needs to be shortened, the direction of the second oil supply mechanism for supplying oil to the second bending oil cylinder 2a is as follows: the oil liquid pumped by the second oil pump 8a enters the interface B from the interface P, then enters the rod cavity of the second bending oil cylinder 2a through the interface B, and in the process, the oil liquid in the rodless cavity of the second bending oil cylinder 2a flows to the interface A under the extrusion action of the oil liquid in the rod cavity, then enters the interface T from the interface A, and finally flows back to the second oil tank 10a from the interface T.
In order to make the three telescopic cylinders 3a corresponding to the three second bending cylinders 2a work with the three second bending cylinders 2a, in a further embodiment, the B ports of the three second bending solenoid directional valves 19a are also connected to the three telescopic cylinders 3a, respectively.
In a further embodiment, a one-way throttle valve 20a is arranged at each oil path where the rodless cavities of the two second bending oil cylinders 2a are connected with the port a of the second bending electromagnetic directional valve 19 a.
In a further embodiment, in the case of a return elastic element provided in the rod chamber of the holding-down cylinder 4 a; the second valve is a compaction control valve 21a, and the rodless cavities of the five compaction oil cylinders 4a are all connected with the compaction control valve 21 a. When the compaction control valve 21a is electrified, oil pressure is provided, the output ends of the five compaction oil cylinders 4a extend to the locking machine head, and in the process, the wave-shaped spring is deformed and compressed; when the power of the pressing control valve 21a is cut off, no oil pressure exists, the deformation of the wave spring is recovered, the output ends of the five pressing oil cylinders 4a are shortened, and hydraulic oil flows back. It should be noted that, although the above embodiments have been described herein, the invention is not limited thereto. Therefore, based on the innovative concepts of the present invention, the technical solutions of the present invention can be directly or indirectly applied to other related technical fields by making changes and modifications to the embodiments described herein, or by using equivalent structures or equivalent processes performed in the content of the present specification and the attached drawings, which are included in the scope of the present invention.
Claims (10)
1. A five-head pure hydraulic hoop bending machine is characterized by comprising a machine base, five machine heads, a first oil supply mechanism and a second oil supply mechanism;
the five machine heads are sequentially arranged side by side along the length direction of the machine base and can be movably connected to the machine base along the length direction of the machine base; a clamping mechanism is arranged below each machine head and comprises a pressing oil cylinder, and the output end of the pressing oil cylinder limits the movement of the machine head when extending to abut against the machine base;
the machine head comprises a hoop bending mechanism, and the hoop bending mechanism comprises a hoop bending disc, a hoop bending shaft, a mandrel, a telescopic oil cylinder, a gear shaft and a bending oil cylinder; the elbow shaft is eccentrically arranged at the elbow disc; the mandrel is arranged in parallel with the elbow shaft, and the mandrel penetrates through the circle center of the elbow disc until the head end of the mandrel is opposite to the elbow shaft; the output end of the telescopic oil cylinder is in transmission connection with the mandrel so as to drive the mandrel to stretch relative to the elbow plate; the gear shaft is sleeved at the tail end of the mandrel, and the end part of the gear shaft is connected with the elbow disc; the output end of the bending oil cylinder is provided with a first rack which is meshed with the teeth of the gear shaft, so that the gear shaft is driven to rotate along with the elbow disc;
the first oil supply mechanism is used for supplying oil to the bending oil cylinders of the head and the tail of the two machine heads and the five telescopic oil cylinders; the second oil supply mechanism is used for supplying oil to the middle three bending oil cylinders and the middle five pressing oil cylinders;
the five telescopic oil cylinders are respectively connected with the first oil supply mechanism through a first valve; the five pressing oil cylinders are connected with the second oil cylinder through a second valve.
2. The five-head pure hydraulic hoop bending machine according to claim 1, wherein the head further comprises a bending angle detection mechanism; the bending angle detection mechanism comprises an encoder and an encoding shaft, the encoding shaft is fixedly sleeved with an encoding gear, and the encoding gear is meshed with teeth of a gear shaft to synchronously rotate along with the gear shaft; the encoder is arranged at the circumference of the encoding shaft to read the rotation angle value.
3. The five-handpiece pure hydraulic hoop bending machine according to claim 1, wherein the handpiece further comprises a connecting seat, and the hoop bending mechanism is arranged on the connecting seat; the bottom of the connecting seat is provided with two opposite sliding parts, and the inner sides of the two sliding parts are respectively provided with a sliding groove for the base to pass through; the engine base penetrates between the two opposite sliding grooves; the clamping mechanism is positioned between the connecting seat and the machine base.
4. The five-head pure hydraulic hoop bending machine according to claim 3, wherein the base is I-shaped in cross section and comprises a top plate, a bottom plate and a connecting plate, the top plate and the bottom plate are arranged opposite to each other up and down, and the connecting plate is vertically connected between the top plate and the bottom plate; the top plate penetrates between the sliding grooves of the two sliding pieces of the machine head.
5. The five-head pure hydraulic hoop bending machine according to claim 3, wherein the head further comprises an adjusting gear and a rotating shaft; the machine base is provided with a second rack along the length direction; the rotating shaft is axially and rotatably arranged on the sliding part; the adjusting gear is fixedly sleeved at the rotating shaft and is meshed with the second rack.
6. The five-head pure hydraulic hoop bending machine according to claim 5, wherein the second rack is provided at the bottom surface of the machine base, and the adjusting gear is located below the second rack.
7. The five-head pure hydraulic hoop bending machine according to claim 5, wherein the rotating shaft is provided with a rocking handle; or the rotary motor is in transmission connection with the rotating shaft and is used for driving the rotating shaft to drive the gear to rotate so as to drive the machine head to move along the second rack.
8. The five-head pure hydraulic hoop bending machine according to claim 3, wherein the pressing mechanism further comprises a spring steel plate and a cylinder bottom plate; the spring steel plate is positioned between the pressing oil cylinder and the connecting seat and is connected with the two sliding parts; the output end of the pressing oil cylinder is arranged towards the base, and the oil cylinder bottom plate is connected with the end face of the output end of the pressing oil cylinder.
9. The five-head pure hydraulic hoop bending machine according to claim 1, wherein a return elastic member is arranged in the pressing oil cylinder, and the return elastic member is used for driving the output end of the pressing oil cylinder to contract and return.
10. The five-head purely hydraulic hoop bending machine as claimed in claim 9, wherein the return elastic member is a wave spring.
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| CN202010479082.8A CN111531069A (en) | 2020-05-29 | 2020-05-29 | Five-head pure hydraulic hoop bending machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112756504A (en) * | 2021-01-26 | 2021-05-07 | 南京龙浩新材料科技有限公司 | Vertically-moving type machine head multi-head hoop bending machine |
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| CN112756504A (en) * | 2021-01-26 | 2021-05-07 | 南京龙浩新材料科技有限公司 | Vertically-moving type machine head multi-head hoop bending machine |
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