CN115069934B - Straightening device for cylindrical metal - Google Patents
Straightening device for cylindrical metal Download PDFInfo
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- CN115069934B CN115069934B CN202211009268.2A CN202211009268A CN115069934B CN 115069934 B CN115069934 B CN 115069934B CN 202211009268 A CN202211009268 A CN 202211009268A CN 115069934 B CN115069934 B CN 115069934B
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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
- B21F1/02—Straightening
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Abstract
The invention relates to the technical field of straightening devices, in particular to a cylindrical metal straightening device. A straightening device for cylindrical metal comprises a shell, a clamping head, a connecting rod, a driving part, a first adjusting mechanism and a second adjusting mechanism; the clamping head is arranged on the shell, the clamping head is slidably arranged on the shell along a first direction, two connecting rods are arranged, a top wheel is arranged at the suspension end of each connecting rod, and the two top wheels are symmetrically arranged on two sides of the clamping head and are used for propping against cylindrical metal; the clamping head is provided with a clamping groove which is used for clamping the bending part of the cylindrical metal to be straightened. According to the straightening device for the cylindrical metal, when the cylindrical metal is straightened, the first adjusting mechanism is arranged, so that the moving distance of the clamping head can be adjusted according to the diameter of the cylindrical metal, the cylindrical metal can tend to be straightened after the clamping head is separated from the cylindrical metal, and the problem of inaccurate straightening caused by rebound resilience of the cylindrical metal is solved.
Description
Technical Field
The invention relates to the technical field of straightening devices, in particular to a cylindrical metal straightening device.
Background
In construction engineering, a plurality of cylindrical metals, such as steel bars, are used, and are bent during transportation or under other unexpected conditions, and the metals need to be straightened for normal use. The existing straightening device utilizes a motor or pneumatic control to easily cause excessive straightening of metal, and needs to straighten in the opposite direction again, so that the strength of the metal can be influenced. And because the metal has certain bending rebound, the straightening effect can be influenced by the rebound resilience of the metal after the metal is straightened, and the straightening result is inaccurate.
The authorized bulletin number is 208787418U, and provides a reinforcing steel bar straightening device for industrial machinery, which straightens reinforcing steel bars at two ends of the reinforcing steel bars, clamps a straightening clamping plate on the outer sides of the reinforcing steel bars, then starts a straightening motor, the straightening motor drives a rotating screw rod to rotate, the rotating screw rod moves through a moving block suspended ceiling straightening clamping plate, the reinforcing steel bars are locally bent and straightened slightly in the moving process, and the reinforcing steel bars are softened by a heating coil to be convenient to straighten. This way of straightening requires the provision of additional heating means, which are complex and costly.
Disclosure of Invention
After serious analysis, the invention discovers that when the metal is straightened, the straightening amount of the metal is required to be added with the rebound amount of the metal, namely, when the metal is straightened, the metal is excessively straightened according to different diameters, for the reinforcing steel bars with different diameters, the rebound amount is smaller due to the larger plastic area range, the simulation experiment is carried out on the rebound amounts of the reinforcing steel bars with different diameters, the rebound amounts corresponding to the metals with different diameters can be obtained, and the rebound amounts are compensated, so that the problem of inaccurate straightening results in the prior art can be solved.
The invention relates to a straightening device for cylindrical metal, which adopts the following technical scheme:
a straightening device for cylindrical metal comprises a shell, a clamping head, a connecting rod, a driving part, a first adjusting mechanism and a second adjusting mechanism; the clamping head is arranged on the shell, the clamping head is slidably arranged on the shell along a first direction, two connecting rods are arranged, a top wheel is arranged at the suspension end of each connecting rod, and the two top wheels are symmetrically arranged on two sides of the clamping head and are used for propping against cylindrical metal; the clamping head is provided with a clamping groove which is used for clamping the bending part of the columnar metal to be straightened; the driving part is used for driving the chuck to move along a first direction relative to the shell and the top wheel after the chuck clamps the aligned cylindrical metal; the first adjusting mechanism is used for adjusting the moving distance of the clamping head according to the diameter of the cylindrical metal, so that the cylindrical metal can tend to be straight after the clamping head is separated from the cylindrical metal; the second adjusting mechanism is used for adjusting the moving speed of the chuck in the first direction, so that the more the moving amount of the chuck is, the smaller the moving speed of the chuck is.
Further, the chuck is fixedly connected with a transmission shaft with an axis extending along a first direction, a slot is arranged on the transmission shaft, and a spring is arranged in the slot; the first adjusting mechanism comprises an induction rod, a first hydraulic transmission mechanism, a push rod and a moving rod; the induction rod is provided with a first end and a second end, the first end of the induction rod is inserted into the slot and is in pressing fit with the spring, the second end of the induction rod is provided with a pressing plate, the pressing plate is positioned in the clamping groove, and when the clamping groove clamps the bending part of the cylindrical metal to be straightened, the inner bending part of the cylindrical metal is propped against the pressing plate; the ejector rod is fixedly arranged on the induction block and synchronously moves along with the induction block; the moving plate is slidably arranged on the shell along a first direction and is matched with the ejector rod stop, the distance between the moving plate and the ejector rod in the first direction in an initial state is a first preset distance, the first hydraulic transmission mechanism is configured to convert the movement of the induction rod relative to the clamping head in the first direction into the opposite movement of the moving plate and the ejector rod in the first direction, the distance between the moving plate and the ejector rod is adjusted to be a second preset distance, and the driving part drives the clamping head to move to enable the ejector rod to be in contact with the moving plate and then stop working.
Further, the driving part comprises a transmission assembly and a driving ring, the shell is provided with a through hole, the transmission assembly comprises a rotating sleeve, the rotating sleeve is rotatably arranged in the through hole, the transmission shaft penetrates through the rotating sleeve, the transmission shaft is driven to move in a first direction through a spiral transmission mechanism when the rotating sleeve rotates, the clamping head is fixedly provided with a limiting rod, and the limiting rod is slidably arranged in the shell along the first direction; the driving ring is rotatably arranged on the shell, and drives the rotating sleeve to rotate when the driving ring rotates.
Further, the second adjustment mechanism includes a continuously variable transmission and a second hydraulic transmission mechanism; the driving ring drives the rotating sleeve to rotate through the continuously variable transmission; the second hydraulic transmission mechanism is used for converting the movement of the clamping head to the side close to the shell into the change of the transmission ratio of the continuously variable transmission so as to gradually reduce the rotation speed of the rotating sleeve.
Further, a first hydraulic cylinder, a first piston rod, a second hydraulic cylinder and a second piston rod of the first hydraulic transmission mechanism; the first hydraulic cylinder is fixedly arranged on the transmission shaft, and the first piston rod is fixedly arranged on the ejector rod and is in sealing sliding fit with the first hydraulic cylinder in a first direction; the shell is fixedly provided with a first supporting plate, the through hole is formed in the first supporting plate, the second hydraulic cylinder is fixedly arranged on the first supporting plate and is a U-shaped pipe with an opening facing the clamping head, one end of the U-shaped pipe is communicated through a non-expansion hose, the other end of the second piston rod is in sealing sliding fit with the other end of the U-shaped pipe in a first direction, and the moving plate is fixedly connected with the second piston rod.
Further, a gear ring is arranged on the inner peripheral wall of the driving ring, a connecting shaft is also arranged on the driving ring, and the connecting shaft and the driving ring are coaxially arranged; the continuously variable transmission comprises a driving cone disc set and a driven cone disc set, and annular driving belts sleeved on the driving cone disc set and the driven cone disc set; the driving cone disc set and the driven cone disc set comprise two cone discs with opposite small ends, the middle part of the main shaft cone disc set is penetrated with a driving shaft, the axis of the driving shaft extends along a first direction, one end of the driving shaft is rotatably arranged on the second supporting plate around the axis of the driving shaft, the other end of the driving shaft is circumferentially provided with a toothed shaft meshed with the gear ring, the cone discs of the driving cone disc set, which are far away from the second supporting plate, are slidably arranged along the driving shaft along the first direction, and the cone discs of the driving cone disc set, which are close to the second supporting plate, are fixedly sleeved on the driving shaft; the driven shaft penetrates through the middle of the driven shaft conical disc group, one end of the driven shaft is fixedly connected with the rotating sleeve, one conical disc, close to the second supporting plate, of the driven shaft conical disc group is slidably sleeved on the driven shaft along the first direction, and one conical disc, far away from the second supporting plate, of the driven shaft conical disc group is fixedly sleeved on the driven shaft.
Further, the second hydraulic transmission mechanism comprises a third hydraulic cylinder, a third piston rod, a fourth hydraulic cylinder and a fourth piston rod; the third hydraulic cylinder is fixedly connected with the moving plate, the third piston rod is fixedly connected with the ejector rod, and the third piston rod is in sealing sliding fit with the third hydraulic cylinder in the first direction; the fourth hydraulic cylinder is fixedly arranged on the shell, the third hydraulic cylinder is communicated with the fourth hydraulic cylinder through a non-expansion hose, and one end of the fourth piston rod in the vertical direction is inserted into the fourth hydraulic cylinder and is in sealing sliding fit with the fourth hydraulic cylinder in the first direction; the driven conical disc comprises a driven conical disc group, a driven conical disc, a driving conical disc group and a driven conical disc group.
Further, the straightening device of the cylindrical metal further comprises a handle, and one end of the handle is rotatably arranged in the middle of the connecting shaft and fixedly connected with the driving ring.
The beneficial effects of the invention are as follows: according to the straightening device for the cylindrical metal, when the cylindrical metal is straightened, the first adjusting mechanism is arranged, so that the moving distance of the clamping head can be adjusted according to the diameter of the cylindrical metal, the cylindrical metal can tend to be straightened after the clamping head is separated from the cylindrical metal, and the problem of inaccurate straightening caused by rebound resilience of the cylindrical metal is solved. Through setting up second adjustment mechanism, can adjust the moving speed of dop in first orientation for the dop moves more downwards, and the dop moving speed is less more, so the cylindricality metal of messenger is along with the change of cylindricality metal's bending amplitude of the in-process cylindricality metal alignment reduce gradually, be convenient for operating personnel control and observe in improvement work efficiency.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic view of an embodiment of a straightening device for cylindrical metal according to the present invention;
FIG. 2 is a schematic view of another view of an embodiment of a straightening device for cylindrical metal according to the present invention;
FIG. 3 is an enlarged view of FIG. 2 at A;
fig. 4 is a front view of an embodiment of a straightening device for cylindrical metal according to the present invention;
FIG. 5 is an enlarged view of FIG. 4 at B;
FIG. 6 is a partial cross-sectional view of FIG. 4;
FIG. 7 is an enlarged view at C of FIG. 6;
fig. 8 is a front view of a driving part and a continuously variable transmission of an embodiment of a straightening device of a cylindrical metal according to the present invention.
In the figure: 110. a housing; 111. a top wheel; 112. a first support plate; 113. a second hydraulic cylinder; 116. a second support plate; 117. a fourth hydraulic cylinder; 120. a handle; 140. a chuck; 141. a transmission shaft; 142. a first hydraulic cylinder; 143. a spring; 160. a pressing plate; 161. an induction rod; 162. a first piston rod; 170. a connecting rod; 171. a limit rod; 172. a third piston rod; 173. a push rod; 180. a moving plate; 181. a third hydraulic cylinder; 182. a second piston rod; 191. a drive ring; 192. a connecting shaft; 211. a rotating sleeve; 212. a driving shaft; 213. a fourth piston rod; 214. a first collar; 215. a second collar; 216. a conical disc; 217. a third collar; 218. a fourth collar; 225. a driving belt.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
An embodiment of a straightening device for cylindrical metal according to the present invention, as shown in fig. 1 to 8, includes a housing 110, a chuck 140, a connection rod 170, a driving part, a first adjusting mechanism, and a second adjusting mechanism. The chuck 140 is disposed on the housing 110, the chuck 140 is slidably mounted on the housing 110 along a first direction, as shown in fig. 1, the first direction is a vertical direction, two connecting rods 170 are provided, the suspended end of each connecting rod 170 is provided with a top wheel 111, the two top wheels 111 are symmetrically disposed on two sides of the chuck 140 and are used for propping against cylindrical metal, and the top wheels 111 are located below the connecting rods 170 in an initial state. The clamping head 140 is provided with a clamping groove for clamping the bending part of the cylindrical metal to be straightened, and when the cylindrical metal to be straightened is bent, the circle center of the bending part is positioned below the clamping head 140. The driving part is used for driving the chuck 140 to move backwards relative to the shell 110 and the top wheels 111 after the chuck 140 clamps the aligned cylindrical metal, so that the cylindrical metal is aligned, in the process, the chuck 140 drives the cylindrical metal to move to be in the same straight line with the two top wheels 111, and then continuously moves downwards for a certain distance according to the rebound amplitude of the cylindrical metal, so that the cylindrical metal is nearly straight after rebound. The first adjusting mechanism is used for adjusting the moving distance of the clamping head 140 according to the diameter of the cylindrical metal, so that the cylindrical metal can tend to be straight after the clamping head 140 is separated from the cylindrical metal. The second adjusting mechanism is used for adjusting the moving speed of the chuck 140 in the vertical direction, so that the more the downward moving amount of the chuck 140 is, the smaller the moving speed of the chuck 140 is.
In the embodiment, a driving shaft 141 with an axis extending along the vertical direction is fixedly connected to a chuck 140, a slot with an upward opening is arranged on the driving shaft 141, and a spring 143 is arranged in the slot; the first adjusting mechanism comprises a sensing rod 161, a first hydraulic transmission mechanism, a push rod 173 and a moving plate 180; the sensing rod 161 has a first end and a second end, the first end of the sensing rod 161 is inserted into the slot and is in press fit with the spring 143, the second end of the sensing rod 161 is provided with the pressing plate 160, the pressing plate 160 is positioned in a clamping groove, and the inner bending part of the cylindrical metal abuts against the pressing plate 160 when the clamping groove clamps the bending part of the cylindrical metal to be straightened. The push rod 173 is fixedly installed on the sensing rod 161 and moves synchronously with the sensing rod 161. The moving plate 180 is slidably mounted on the housing 110 along the vertical direction and is used for being in stop fit with the ejector rod 173, the distance between the moving plate 180 and the ejector rod 173 in the vertical direction in the initial state is a first preset distance, the first hydraulic transmission mechanism is configured to convert the movement of the sensing rod 161 relative to the chuck 140 in the vertical direction into the opposite movement of the moving plate 180 and the ejector rod 173 in the vertical direction, the opposite movement of the sensing rod 161 and the ejector rod 173 adjusts the distance between the moving plate 180 and the ejector rod 173 from the first preset distance to a second preset distance, specifically, the distance between the upper end of the pressing plate 160 and the lower end of the ejector rod 173 is the same as the distance between the upper top surface of the moving plate 180 and the position of the contact point of the top surface with the top wheel 11, and the difference between the first preset distance and the second preset distance is obtained according to multiple experiments of rebound resilience of cylindrical metals with different diameters. After the clamping of the cylindrical metal is completed, the driving part is restarted, the chuck 140 is driven to move to stop working after the ejector rod 173 is contacted with the moving plate 180, and further, a plurality of experiments on rebound resilience of the cylindrical metal according to different diameters are configured so that when the ejector rod 173 is contacted with the moving plate 180, the upper surface of the pressing plate 160 is lower than a horizontal tangent line of the upper side of the top wheel 111. After which the cylindrical metal will spring back to a state of being flat if it is disengaged from the clamping groove and the top wheel 111.
In this embodiment, the driving portion includes a transmission assembly and a driving ring 191, the casing 110 is provided with a through hole, the transmission assembly includes a rotation sleeve 211, the rotation sleeve 211 is rotatably installed in the through hole, the transmission shaft 141 penetrates through the rotation sleeve 211, the rotation sleeve 211 drives the transmission shaft 141 to move in the vertical direction through a screw transmission mechanism when rotating, specifically, a first thread groove is provided on the inner peripheral wall of the rotation sleeve 211, the transmission shaft 141 penetrates through the rotation sleeve 211, a second thread groove in screw fit with the first thread groove is provided on the transmission shaft 141, the chuck 140 is fixedly installed with a limit rod 171, and the limit rod 171 is slidably installed on the casing 110 along the vertical direction; the driving ring 191 is rotatably installed to the housing 110, and the driving ring 191 rotates to drive the rotation sleeve 211 to rotate. When the rotating sleeve 211 rotates, the transmission shaft 141 is driven to move downwards by the first thread groove and the second thread groove, so that the transmission shaft 141 drives the chuck 140 to move downwards.
In this embodiment, the second adjustment mechanism includes a continuously variable transmission and a second hydraulic transmission mechanism. The driving ring 191 drives the rotation sleeve 211 to rotate through the continuously variable transmission. The second hydraulic transmission mechanism is used to convert the downward movement of the chuck 140 relative to the housing 110 into a change in the continuously variable transmission gear ratio to gradually reduce the rotational speed of the rotating sleeve 211. So that the change speed of the bending amplitude of the cylindrical metal in the straightening process is gradually reduced, and the straightening efficiency is improved, and the control and observation of operators are facilitated.
In the present embodiment, the first hydraulic transmission mechanism includes a first hydraulic cylinder 142, a first piston rod 162, a second hydraulic cylinder 113, and a second piston rod 182. The first hydraulic cylinder 142 is fixedly mounted on the transmission shaft 141, and the first piston rod 162 is fixedly mounted on the push rod 173 and is in sealing sliding fit with the first hydraulic cylinder 142 in the vertical direction. The shell 110 is fixedly provided with a first support plate 112, the through hole is formed in the first support plate 112, the second hydraulic cylinder 113 is fixedly arranged on the first support plate 112 and is a U-shaped tube with an opening facing the clamping head 140, one end of the U-shaped tube is communicated through a non-expansion hose, the other end of the U-shaped tube is in sealing sliding fit in the vertical direction, the moving plate 180 is fixedly connected with the second piston rod 182, when cylindrical metal is placed on the clamping groove, the cylindrical metal pushes the sensing rod 161 to move downwards through the pressing plate 160, the sensing rod 161 drives the ejector rod 173 and the first piston rod 162 to move downwards, and when the first piston rod 162 moves downwards, the second piston rod 182 is pushed to move upwards through liquid in the first hydraulic cylinder 142 and the second hydraulic cylinder 113, namely, the second piston rod 182 and the ejector rod 173 are close to each other, so that the distance between the moving plate 180 and the ejector rod 173 is adjusted from a first preset distance to a second preset distance.
In the present embodiment, a ring gear is provided on the inner peripheral wall of the drive ring 191, and a connecting shaft 192 is further provided on the drive ring 191, and the connecting shaft 192 is provided coaxially with the drive ring 191. The housing 110 is mounted on a second support plate 116. The continuously variable transmission comprises a driving cone disc set, a driven cone disc set and an annular driving belt 225 sleeved on the driving cone disc set and the driven cone disc set. The driving cone disc set and the driven cone disc set respectively comprise two cone discs 216 with opposite small ends, the middle part of the main shaft cone disc set is penetrated by a driving shaft 212, the axis of the driving shaft 212 extends along the vertical direction, the upper end of the driving shaft 212 is rotatably arranged on a second supporting plate 116 around the axis of the driving shaft, the lower end of the driving shaft 212 is circumferentially provided with a toothed shaft meshed with a gear ring, cone discs positioned below in the driving cone disc set are slidably arranged along the driving shaft 212 in the vertical direction, and the cone discs 216 positioned above in the driving cone disc set are fixedly sleeved on the driving shaft 212; the driven shaft penetrates through the middle part of the driven shaft conical disc group, the upper end of the driven shaft is fixedly connected with the rotating sleeve 211, the conical disc positioned above in the driven shaft conical disc group is sleeved on the driven shaft in a sliding manner along the vertical direction, and the conical disc 216 positioned below in the driven shaft conical disc group is fixedly sleeved on the driven shaft. When the driving ring 191 rotates, the driving shaft 212 rotates through the gear ring, the driving shaft 212 rotates to drive the driving cone disc set to rotate, the driving cone disc set drives the driven cone disc set to rotate through the transmission belt 225, and when the driven cone disc set rotates, the driven cone disc set drives the rotating sleeve 211 to rotate through the driven shaft, so that the transmission shaft 141 and the chuck 140 are driven to move downwards.
In the present embodiment, as shown in fig. 8, the second hydraulic transmission mechanism includes a third hydraulic cylinder 181, a third piston rod 172, a fourth hydraulic cylinder 117, and a fourth piston rod 213. The third hydraulic cylinder 181 is fixedly connected with the moving plate 180, the third piston rod 172 is fixedly connected with the ejector rod 173 and is in sealing sliding fit with the third hydraulic cylinder 181 in the vertical direction, the fourth hydraulic cylinder 117 is fixedly arranged on the shell 110 and is positioned below the third hydraulic cylinder 181, the third hydraulic cylinder 181 and the fourth hydraulic cylinder 117 are communicated through a non-expansion hose, and one end of the fourth piston rod 213 in the vertical direction is inserted into the fourth hydraulic cylinder 117 and is in sealing sliding fit with the fourth hydraulic cylinder 117 in the vertical direction. The fourth piston rod 213 is sleeved with a first lantern ring 214 and a second lantern ring 215, the first lantern ring 214 and the second lantern ring 215 are both rotatably sleeved on the driven shaft, the first lantern ring 214 is fixedly connected with a third lantern ring 217 through a connecting rod, the third lantern ring 217 is rotatably sleeved on a conical disc 216 which is positioned above in the driven conical disc group, the second lantern ring 215 is fixedly connected with a fourth lantern ring 218 through a connecting rod, and the fourth lantern ring 218 is rotatably sleeved on a conical disc 216 which is positioned below in the driving conical disc 216. When the ram 173 moves downward, the third piston rod 172 is driven to move downward, the third piston rod 172 pushes the fourth piston rod 213 to descend through the liquid in the third hydraulic cylinder 181 and the fourth hydraulic cylinder 117, and when the fourth piston rod 213 descends, the first collar 214 and the third collar 217 drive the upper cone disc 216 of the driven cone disc set to descend. And when the fourth piston rod 213 descends, the second collar 215 and the fourth collar 218 drive the cone disc 216 below the main cone disc set to descend, so that the transmission ratio of the driving cone disc set to the driven cone disc set is reduced, and the rotation speed of the rotating sleeve 211 is gradually reduced.
In this embodiment, a straightening device for cylindrical metal further includes a handle 120, where one end of the handle 120 is rotatably mounted in the middle of the connecting shaft 192 and fixedly connected to the driving ring 191, and an operator drives the driving ring 191 to rotate by rotating the handle 120.
When the straightening device for the cylindrical metal is used, the clamping head 140 is clamped at the position with the largest curvature of the cylindrical metal, so that the inner curved surface of the cylindrical metal is propped against the upper surface of the pressing plate 160, and the outer curved surface of the cylindrical metal is propped against the upper groove wall of the clamping groove; the two top wheels 111 face the columnar metal and are used for being propped against other positions of the columnar metal, the columnar metal is used for preventing pushing the pressing plate 160 to move downwards in the process of clamping the groove, the pressing plate 160 drives the sensing rod 161, the first piston rod 162, the ejector rod 173 and the third piston rod 172 to move downwards relative to the transmission shaft 141 and the shell 110, and when the first piston rod 162 moves downwards, the second piston rod 182 is pushed to move upwards through liquid in the first hydraulic cylinder 142 and the second hydraulic cylinder 113, namely the second piston rod 182 and the ejector rod 173 are close to each other, so that the distance between the moving plate 180 and the ejector rod 173 is adjusted from the first preset distance to the second preset distance. And when the third piston rod 172 moves downwards, the liquid in the third hydraulic cylinder 181 and the fourth hydraulic cylinder 117 pushes the fourth piston rod 213 to descend, and when the fourth piston rod 213 descends, the first lantern ring 214 and the third lantern ring 217 drive the cone disc 216 of the driven cone disc group, which is positioned above, to descend. And when the fourth piston rod 213 descends, the second lantern ring 215 and the fourth lantern ring 218 drive the cone disc 216 positioned below the slave cone disc set to descend, so that the transmission ratio of the driving cone disc set to the driven cone disc set is reduced.
After the fixation of the cylindrical metal is completed, the operator rotates the handle 120 to rotate the connecting shaft 192 and the driving ring 191, and drives the rotating sleeve 211 to rotate through the continuously variable transmission when the driving ring 191 rotates, and drives the transmission shaft 141 to descend relative to the housing 110 through the first thread groove and the second thread groove when the rotating sleeve 211 rotates, and when the transmission shaft 141 moves downwards relative to the housing 110, the push rod 173 and the third piston rod 172 continue to be driven to move downwards relative to the housing 110, and when the third piston rod 172 moves downwards relative to the third piston cylinder, the fourth piston rod 213 is pushed to move downwards relative to the housing 110 through the liquid in the third hydraulic cylinder 181 and the fourth hydraulic cylinder 117, so that the transmission ratio of the driving cone set and the driven cone set is further reduced (the same principle). Until the lower end of the push rod 173 abuts against the upper surface of the moving plate 180, the handle 120 is stopped from rotating. And then the cylindrical metal is disassembled, and the straightening work of the cylindrical metal is completed.
Further, if it is found that the chuck 140 is not at the maximum curvature of the cylindrical metal during the straightening work, the position of the chuck 140 may be changed at any time.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (6)
1. The utility model provides a coalignment of cylindricality metal which characterized in that: comprises a shell, a clamping head, a connecting rod, a driving part, a first adjusting mechanism and a second adjusting mechanism; the clamping head is arranged on the shell, the clamping head is slidably arranged on the shell along a first direction, two connecting rods are arranged, a top wheel is arranged at the suspension end of each connecting rod, and the two top wheels are symmetrically arranged on two sides of the clamping head and are used for propping against cylindrical metal; the clamping head is provided with a clamping groove which is used for clamping the bending part of the columnar metal to be straightened; the driving part is used for driving the chuck to move along a first direction relative to the shell and the top wheel after the chuck clamps the cylindrical metal to be straightened; the first adjusting mechanism is used for adjusting the moving distance of the clamping head according to the diameter of the cylindrical metal, so that the cylindrical metal can tend to be straight after the clamping head is separated from the cylindrical metal; the second adjusting mechanism is used for adjusting the moving speed of the clamping head in the first direction, so that the more the moving amount of the clamping head is, the smaller the moving speed of the clamping head is, the clamping head is fixedly connected with a transmission shaft with an axis extending along the first direction, a slot is arranged on the transmission shaft, and a spring is arranged in the slot; the first adjusting mechanism comprises an induction rod, a first hydraulic transmission mechanism, an ejector rod and a moving plate; the induction rod is provided with a first end and a second end, the first end of the induction rod is inserted into the slot and is in pressing fit with the spring, the second end of the induction rod is provided with a pressing plate, the pressing plate is positioned in the clamping groove, and when the clamping groove clamps the bending part of the cylindrical metal to be straightened, the inner bending part of the cylindrical metal is propped against the pressing plate; the ejector rod is fixedly arranged on the induction rod and moves synchronously with the induction rod; the first hydraulic transmission mechanism is configured to convert the movement of the induction rod relative to the clamping head in the first direction into the opposite movement of the moving plate and the ejector rod in the first direction, and the driving part drives the clamping head to move to enable the ejector rod to stop working after contacting with the moving plate; the rebound quantity of the cylindrical metal can be compensated through the first adjusting mechanism; the first hydraulic transmission mechanism comprises a first hydraulic cylinder, a first piston rod, a second hydraulic cylinder and a second piston rod; the first hydraulic cylinder is fixedly arranged on the transmission shaft, and the first piston rod is fixedly arranged on the ejector rod and is in sealing sliding fit with the first hydraulic cylinder in a first direction; the shell is fixedly provided with a first supporting plate, the through hole is formed in the first supporting plate, the second hydraulic cylinder is fixedly arranged in the first supporting plate and is a U-shaped pipe with an opening facing the clamping head, one end of the U-shaped pipe is communicated with the first hydraulic cylinder through a non-expansion hose, the other end of the second piston rod is in sealing sliding fit with the other end of the U-shaped pipe in a first direction, and the moving plate is fixedly connected with the second piston rod.
2. A straightening device for cylindrical metal according to claim 1, characterized in that: the driving part comprises a transmission assembly and a driving ring, a through hole is formed in the shell, the transmission assembly comprises a rotating sleeve, the rotating sleeve is rotatably arranged in the through hole, the transmission shaft penetrates through the rotating sleeve, the transmission shaft is driven to move in a first direction through a spiral transmission mechanism when the rotating sleeve rotates, a limiting rod is fixedly arranged on the clamping head, and the limiting rod is slidably arranged in the shell along the first direction; the driving ring is rotatably arranged on the shell, and drives the rotating sleeve to rotate when the driving ring rotates.
3. A straightening device for cylindrical metal according to claim 2, characterized in that: the second adjusting mechanism comprises a continuously variable transmission and a second hydraulic transmission mechanism; the driving ring drives the rotating sleeve to rotate through the continuously variable transmission; the second hydraulic transmission mechanism is used for converting the movement of the clamping head to the side close to the shell into the change of the transmission ratio of the continuously variable transmission so as to gradually reduce the rotation speed of the rotating sleeve.
4. A straightening device for cylindrical metal according to claim 3, characterized in that: the inner peripheral wall of the driving ring is provided with a gear ring, the driving ring is also provided with a connecting shaft, and the connecting shaft and the driving ring are coaxially arranged; the continuously variable transmission comprises a driving cone disc set and a driven cone disc set, and annular driving belts sleeved on the driving cone disc set and the driven cone disc set; the driving cone disc set and the driven cone disc set comprise two cone discs with opposite small ends, the middle part of the main shaft cone disc set is penetrated with a driving shaft, the axis of the driving shaft extends along a first direction, one end of the driving shaft is rotatably arranged on the second supporting plate around the axis of the driving shaft, the other end of the driving shaft is circumferentially provided with a toothed shaft meshed with the gear ring, the cone discs of the driving cone disc set, which are far away from the second supporting plate, are slidably arranged along the driving shaft along the first direction, and the cone discs of the driving cone disc set, which are close to the second supporting plate, are fixedly sleeved on the driving shaft; the middle part of driven awl dish group runs through there is the driven shaft, and the one end and the rotation cover fixed connection of driven shaft, driven shaft is located to a awl dish that is close to the second backup pad of driven awl dish group slidable cover along first direction, and driven shaft is located to a awl dish fixed cover that keeps away from the second backup pad of driven awl dish group.
5. A straightening device for cylindrical metal according to claim 4, characterized in that: the second hydraulic transmission mechanism comprises a third hydraulic cylinder, a third piston rod, a fourth hydraulic cylinder and a fourth piston rod; the third hydraulic cylinder is fixedly connected with the moving plate, the third piston rod is fixedly connected with the ejector rod, and the third piston rod is in sealing sliding fit with the third hydraulic cylinder in the first direction; the fourth hydraulic cylinder is fixedly arranged on the shell, the third hydraulic cylinder is communicated with the fourth hydraulic cylinder through a non-expansion hose, and one end of the fourth piston rod in the vertical direction is inserted into the fourth hydraulic cylinder and is in sealing sliding fit with the fourth hydraulic cylinder in the first direction; the driven conical disc comprises a driven conical disc group, a driven conical disc, a driving conical disc group and a driven conical disc group.
6. A straightening device for cylindrical metal according to claim 4, characterized in that: the device also comprises a handle, wherein one end of the handle is rotatably arranged in the middle of the connecting shaft and is fixedly connected with the driving ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211009268.2A CN115069934B (en) | 2022-08-23 | 2022-08-23 | Straightening device for cylindrical metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211009268.2A CN115069934B (en) | 2022-08-23 | 2022-08-23 | Straightening device for cylindrical metal |
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| Publication Number | Publication Date |
|---|---|
| CN115069934A CN115069934A (en) | 2022-09-20 |
| CN115069934B true CN115069934B (en) | 2023-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211009268.2A Active CN115069934B (en) | 2022-08-23 | 2022-08-23 | Straightening device for cylindrical metal |
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Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1577055A (en) * | 1925-03-30 | 1926-03-16 | Jesse Weldon O Neill | Combination pushing and pulling jack |
| RU2038883C1 (en) * | 1992-10-15 | 1995-07-09 | Акционерное общество открытого типа "Уральский завод тяжелого машиностроения" | Method of straightening ends of rails |
| CN2205754Y (en) * | 1994-07-20 | 1995-08-23 | 北京建茂建筑设备有限公司 | Hydraulic bending streightening device for reinforcing bars |
| CN2236576Y (en) * | 1995-05-18 | 1996-10-02 | 吴熙昌 | Automatically corresponding belt stepless speed regulator |
| US5600993A (en) * | 1995-10-30 | 1997-02-11 | Heaman; Norman L. | Flexible shoe for a bending machine |
| CN101275650A (en) * | 2008-05-16 | 2008-10-01 | 清华大学 | Bimetallic strip driving stepless speed changer |
| CN101837389B (en) * | 2010-02-10 | 2012-05-30 | 西安石油大学 | Portable and all-dimensional continuous oil pipe straightening machine |
| CN107448569B (en) * | 2017-09-22 | 2019-08-27 | 陈学琴 | Adaptive movable-tooth stepless speed transmission |
| CN207668213U (en) * | 2017-12-22 | 2018-07-31 | 耿全水 | A kind of piston of automobile bar straightening device |
| CN112808801A (en) * | 2021-02-08 | 2021-05-18 | 连云港斯克斯机器人科技有限公司 | High-precision, high-rigidity and compact manual straightening mechanism |
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