CN111167875A - Jaw for aluminum extrusion straightening machine and straightening machine comprising jaw - Google Patents
Jaw for aluminum extrusion straightening machine and straightening machine comprising jaw Download PDFInfo
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- CN111167875A CN111167875A CN201911335596.XA CN201911335596A CN111167875A CN 111167875 A CN111167875 A CN 111167875A CN 201911335596 A CN201911335596 A CN 201911335596A CN 111167875 A CN111167875 A CN 111167875A
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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
- B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels
- B21C35/02—Removing or drawing-off work
- B21C35/03—Straightening the work
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Abstract
The invention discloses a jaw for an aluminum extrusion straightening machine, wherein the jaw comprises a main stretching head device and an auxiliary stretching head device which are symmetrically arranged at two opposite sides of the straightening machine, the main stretching head device and the auxiliary stretching head device have the same structure, the main stretching head device and the auxiliary stretching head device respectively comprise a steel structure frame, an upper unit positioned at the upper half part of the steel structure frame and a lower unit positioned at the lower half part of the steel structure frame, and the upper unit comprises an upper pressure cylinder, an upper sleeve pipe assembly and an upper jaw part; the lower unit comprises a lower pressure cylinder, a lower sleeve component and a lower jaw part. The invention can solve the problems of different clamping positions of the clamp caused by clamping products with different heights in the prior art, thereby improving the productivity and the yield, reducing the investment cost of users and having high maintenance cost. The invention also provides a straightening machine comprising the jaw, which can be used as a large straightening machine.
Description
Technical Field
The invention relates to the technical field of aluminum processing, in particular to a jaw for an aluminum extrusion straightening machine and the straightening machine comprising the jaw.
Background
Along with the rapid development of the aluminum processing industry in China, the tonnage of aluminum extrusion equipment is greatly improved, extruded sections are wider and taller, the maximum height of the extruded sections can reach 800mm at present, and the section height tends to increase continuously.
The extruded product of aluminum is extruded to pass through an extrusion die to be formed, then is drawn, quenched by water and wind, and then is cut off to form a product with a certain length. In the process, a part of residual stress is left in the product and a certain amount of deformation is formed outside the product due to the non-uniformity of the extrusion stress and the friction force of the inner periphery of the extrusion die and the rapid cooling of water-air cooling quenching, so that the residual stress and the deformation need to be eliminated by a straightening machine. The jaw of the straightening machine is used as an important component of the straightening machine, and the reasonable design of the jaw is directly related to the problems of investment cost of a user, working efficiency, high yield and the like.
Currently, the existing straightener jaws generally have two structures: a pendulum type stretching jaw and a wedge type stretching jaw.
A) Pendulum type stretching jaw
Fig. 1 schematically illustrates a conventional pendulum tensioning jaw for a straightening machine. In fig. 1, reference numeral 110 denotes a main stretching head device, reference numeral 120 denotes a sub-stretching head device, and 130 denotes an article to be manufactured. The main stretching head device 110 and the secondary stretching head device 120 are symmetrically distributed on opposite sides of the pendulum stretching jaw.
Note that, since the jaw structure of the main stretching head device 110 is identical to that of the sub-stretching head device 120, only the jaw structure of the main stretching head device 110 will be described as an example.
Referring to fig. 1, in the main stretching head assembly 110, the lower jaw 115 may be bolted to the steel structural frame 111 below within the "U" shaped opening. The oil cylinder 112 can drive the connecting rod connecting shaft 113 to rotate, and as the upper swing clamp 114 is connected with the connecting rod connecting shaft 113 through a key, the connecting rod connecting shaft 113 rotates and simultaneously drives the swing clamp 114 to swing up and down, so that the product 130 is clamped and loosened. As mentioned above, the height of the product 130 can reach 800mm at present, and the minimum height can be set as 10mm, so the height of the product 130 clamped by the jaws can be 10-800 mm. If the swing clamp 114 is used to clamp a product 130 within a range of 10-800 mm, the swing clamp 114 may be designed to be relatively large in consideration of strength and rigidity, which may increase the investment cost of the user. Moreover, the swing clamp 114 belongs to the category of vulnerable parts, and teeth used for clamping products can have the phenomenon of tooth breakage after being used for a period of time, so that a user may need to replace the swing clamp 114, and the spare part cost of the user is increased due to the large structure of the swing clamp 114. In addition, when the product is straightened and then the swing clamp 114 releases the product, the structure often has the phenomenon of 'tooth or material clamping' due to the lateral swing, namely the swing clamp 114 cannot be opened, and the product 130 can only be hammered in a manual auxiliary mode, so that the working efficiency of a user is reduced. Thus, such jaw configurations are typically used with small aluminum extrusions and straighteners to grip articles 130 having a small range of heights. In addition, due to the structural limitation, the V-shaped jaw cannot be matched, so that the V-shaped jaw is mainly used for straightening the section bar, and the tooth-off phenomenon is easy to occur when the V-shaped jaw is used for straightening the pipe and the bar.
B) Wedge type stretching jaw
3 figure 3 2 3 schematically 3 shows 3 a 3 cross 3- 3 sectional 3 view 3 of 3 a 3 prior 3 art 3 tapered 3 stretching 3 jaw 3, 3 and 3 figure 3 3 3 schematically 3 shows 3 a 3 partial 3 cross 3- 3 sectional 3 view 3 taken 3 along 3 section 3 a 3- 3 a 3 of 3 figure 3 2 3. 3 Similarly, since the jaw structure of the main stretching head device is completely the same as that of the sub-stretching head device, fig. 2 only shows the main stretching head device, and only the jaw structure of the main stretching head device will be described below as an example.
Referring to fig. 2, reference numeral 210 denotes a main stretching head device, reference numeral 220 denotes an article having a height of 300mm, and reference numeral 230 denotes an article having a height of 50 mm.
As shown in fig. 2, the upper and lower clamp cylinders 211 and 211' may be fixed to the upper and lower halves of the steel structural frame 212, respectively. The upper and lower clamp cylinders 211 and 211 ', respectively, may push the upper and lower clamp sliders 213 and 213' to slide along the inclined rails, so that the upper and lower clamp sliders 213 and 213 ', respectively, bring the upper and lower clamps 214 and 214' toward or away from each other, thereby clamping the product 220 or 230. As can be seen from FIG. 2, if clamping a product with a height in the range of 20-800 mm, the throat depth L1 of the steel structural frame 212 needs to be designed to be very long, and the strength and rigidity are considered, so that the design of the steel structural frame 212 is large, and the investment cost of a user is increased. It can also be seen from figure 2 that if one were to drop from holding a product 220 of 300mm height to holding a product 230 of 50mm height, the jaws 214 and lower jaw 214' would not have the same engagement position over the axial length for a product 220 of 300mm height and a product 230 of 50mm height. Because the depth of the head end face of the product extending into the jaw, namely the throat depth L1, is not changed by the height of the product, which is limited by the previous feeding equipment of the straightening machine, the product 230 with the meshing height of 50mm is longer than the product 220 with the meshing height of 300mm by a certain length (L1-L2), thereby increasing the waste of the product 230 with the height of 50mm and reducing the yield. Since the upper and lower tongs 214 and 214' are opened by moving in the obliquely upward and downward directions, respectively, from the time of holding the product to the time of releasing, there is also a phenomenon of "tooth or material jamming", which reduces the work efficiency of the user.
Fig. 3 shows a wedge-type guide of the upper and lower jaw slides 213, 213' on the steel structural frame 212. Due to the limitation of the stress intensity, the upper clamp slider 213 and the lower clamp slider 213' can be directly processed into a dovetail form on the steel structural frame 212. However, this form is expensive to manufacture, and there may be wear in guiding for a long time, which results in an increase in the guiding clearance, so that a "tooth-off" phenomenon may occur when straightening the product, which results in that not only the upper and lower clamps 214 and 214 'are wearing parts due to "tooth breakage", but also the upper and lower clamp sliders 213 and 213' need to be replaced frequently in order to compensate for the wear clearance of the steel structural frame 212, which results in an increase in the maintenance cost of the user.
There is therefore a need in the art for a jaw for an aluminium extrusion straightening machine and a straightening machine comprising such a jaw, which eliminate or at least alleviate all or some of the above-mentioned drawbacks of the prior art.
Disclosure of Invention
In view of the above technical problems in the prior art, an object of the present invention is to provide a jaw for an aluminum extrusion straightening machine, which can adopt a positive pressure type structure that a stretching head upper jaw and a stretching head lower jaw vertically move up and down to clamp a product, so as to eliminate the problems of clamping products with different heights and different clamping positions of a clamp in the prior art, thereby improving productivity and yield, and reducing user investment cost and maintenance cost. The invention also provides a straightening machine comprising the jaw, which can be used as a large straightening machine.
It is emphasized that, unless otherwise indicated, the terms used herein correspond to the ordinary meanings of the various technical and scientific terms in the art, and the meanings of the technical terms defined in the various technical dictionaries, textbooks, etc.
According to an embodiment of the invention, a jaw for an aluminum extrusion straightening machine is provided, wherein the jaw comprises a main stretching head device and an auxiliary stretching head device which are symmetrically arranged at two opposite sides of the straightening machine, wherein the main stretching head device and the auxiliary stretching head device have identical structures, and each of the main stretching head device and the auxiliary stretching head device comprises a steel structural frame, an upper unit positioned at the upper half part of the steel structural frame and a lower unit positioned at the lower half part of the steel structural frame,
the upper unit includes:
the upper pressure cylinder is detachably connected to the upper part of the steel structure frame and comprises a first cylinder body and a first piston rod positioned in the first cylinder body;
the upper sleeve assembly is sleeved on the outer side of the upper pressure cylinder and comprises a first transition metal sleeve and a first metal guide sleeve positioned below the first transition metal sleeve, wherein the first transition metal sleeve is sleeved on the outer side of the upper part of the upper pressure cylinder and is detachably connected to the upper part of the steel structure frame, and the first metal guide sleeve is sleeved on the outer side of the lower part of the upper pressure cylinder and is installed on the steel structure frame and used for guiding a first piston rod of the upper pressure cylinder to vertically move up and down;
an upper jaw portion having one end detachably connected to a lower portion of the upper cylinder and the other end for holding a product to be produced;
the lower unit includes:
the lower pressure cylinder is detachably connected to the lower part of the steel structure frame and comprises a second cylinder body and a second piston rod positioned in the second cylinder body;
the lower sleeve assembly is sleeved on the outer side of the lower pressing cylinder and comprises a second transition metal sleeve and a second metal guide sleeve positioned above the second transition metal sleeve, wherein the second transition metal sleeve is sleeved on the outer side of the lower part of the lower pressing cylinder and is detachably connected to the lower part of the steel structure frame, and the second metal guide sleeve is sleeved on the outer side of the upper part of the lower pressing cylinder and is installed on the steel structure frame and used for guiding a second piston rod of the lower pressing cylinder to vertically move up and down;
and a lower jaw portion having one end detachably connected to an upper portion of the lower cylinder and the other end for holding a product to be produced.
In a preferred embodiment, the upper unit may further include a first flange which may pass through the first transition metal bushing by a first threaded connection, the first transition metal bushing being fixedly mounted to the steel structural frame; the lower unit may further comprise a second flange that may pass through a second transition metal sleeve by a second threaded connection, fixedly mounting the second transition metal sleeve to the steel structural frame.
In a preferred embodiment, the first threaded connection may be a long stud and the second threaded connection may be a long stud.
In a preferred embodiment, the rod head of the first piston rod of the upper pressure cylinder may have an external thread, the first flange may be provided with a first internal threaded hole, and the rod head of the first piston rod may be threadedly connected to the first internal threaded hole of the first flange; the rod head of the second piston rod of the lower pressure cylinder may have an external thread, the second flange may be provided with a second internal threaded hole, and the rod head of the second piston rod may be screwed into the second internal threaded hole of the second flange.
In a preferred embodiment, the upper pressure cylinder and the upper jaw portion may be connected by a snap connection in combination with a bolt connection, and the lower pressure cylinder and the lower jaw portion may be connected by a snap connection in combination with a bolt connection.
In a preferred embodiment, a dovetail may be provided at the bottom of the lower portion of the upper pressure cylinder and a corresponding dovetail groove may be provided at the top of the upper jaw portion, or a dovetail groove may be provided at the bottom of the lower portion of the upper pressure cylinder and a corresponding dovetail may be provided at the top of the upper jaw portion, so that the upper pressure cylinder and the upper jaw portion may be fixedly connected together by inserting the dovetail into the dovetail groove and connecting with a bolt; the top of the upper portion of the lower pressing cylinder can be provided with a dovetail and the bottom of the lower jaw portion can be provided with a corresponding dovetail groove, or the top of the upper portion of the lower pressing cylinder can be provided with a dovetail groove and the bottom of the lower jaw portion can be provided with a corresponding dovetail groove, so that the dovetail can be inserted into the dovetail groove and connected through a bolt, and the lower pressing cylinder and the lower jaw portion are fixedly connected together.
In a preferred embodiment, both the first transition metal sleeve and the second transition metal sleeve may be made of steel.
In a preferred embodiment, both the first metal guide sleeve and the second metal guide sleeve may be made of copper.
In a preferred embodiment, the upper jaw portion may have an upper clamping portion for clamping the article to be produced, the upper clamping portion may have a serrated tooth structure; the lower jaw portion may have a lower clamping portion for clamping a product to be produced, and the lower clamping portion may have a serrated tooth structure.
Further, the present invention also provides a straightening machine comprising the jaws of any of the above embodiments.
Compared with the prior art, the straightening machine provided by the embodiment of the invention has the following beneficial effects:
firstly, the positive pressure type structure for clamping a product can be adopted by driving the upper jaw part of the stretching head by the upper pressure cylinder and driving the lower jaw part of the stretching head by the lower pressure cylinder to vertically move up and down, so that the problems of clamping products with different heights and different clamping positions of the clamps in the prior art are solved, and the rate of finished products is improved;
secondly, the defects of lengthened throat depth and huge jaw structure caused by clamping products with different heights are also avoided;
thirdly, the invention does not adopt dovetail guide and the like in the prior art, avoids abrasion guide, has simple structure and reduces the investment cost of users. It should be noted that although the upper pressure cylinder and the upper jaw portion of the stretching head and the lower pressure cylinder and the lower jaw portion of the stretching head of the device of the present invention are connected in a form of "dovetail joint and dovetail groove" fitting connection, the fitting connection is not used for guiding, so that abrasion is not generated, and the jaw is more convenient to replace.
In addition, the upper jaw part of the stretching head and the lower jaw part of the stretching head can also adopt special sawtooth-shaped structures, so that the phenomenon of 'tooth clamping' or 'material clamping' of the jaw parts does not occur any more, and the production efficiency of a user is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 schematically illustrates a conventional pendulum tensioning jaw for a straightening machine;
FIG. 2 schematically illustrates a cross-sectional view of a prior art tapered drawing jaw;
3 FIG. 3 3 3 schematically 3 illustrates 3 a 3 partial 3 cross 3- 3 sectional 3 view 3 taken 3 along 3 section 3 A 3- 3 A 3 of 3 FIG. 3 2 3; 3
FIG. 4 schematically illustrates a front view of a jaw for an aluminum extrusion straightening machine according to an embodiment of the present invention.
Description of the reference numerals
110: a main stretching head device; 111: a steel structural frame; 112: an oil cylinder; 113: a connecting rod connecting shaft; 114: swinging the clamp; 115: a lower jaw; 120: a secondary stretching head device; 130: an article of manufacture; 210: a main stretching head device; 211: an upper clamp cylinder; 211': a lower clamp cylinder; 212: a steel structural frame; 213: an upper clamp slider; 213': a lower clamp slider; 214: an upper clamp; 214': a lower clamp; 220: an article of manufacture; 230: an article of manufacture;
1000: a jaw; 1100: a main stretching head device; 1101: a steel structural frame; 1102: an upper pressure cylinder; 1103: a first flange; 1104: a first transition metal sleeve; 1105: a first metal guide sleeve; 1106: an upper jaw portion; 1107: a lower jaw; 1108: a lower pressure cylinder; 1109: a second transition metal sleeve; 1110: a second flange; 1111: a second metal guide sleeve; 1200: a secondary stretching head device; 1300: an article of manufacture.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The technical scheme provided by the embodiment of the invention is described in detail below with reference to the accompanying drawings.
Referring to fig. 4, a jaw 1000 for an aluminum extrusion straightening machine according to an embodiment of the present invention is shown, wherein the jaw 1000 comprises a main stretching head device 1100 and a secondary stretching head device 1200 symmetrically disposed at opposite sides of the straightening machine, wherein the main stretching head device 1100 and the secondary stretching head device 1200 have identical structures, and the main stretching head device 1100 and the secondary stretching head device 1200 each comprise a steel structural frame 1101, an upper unit located at an upper half of the steel structural frame 1101, and a lower unit located at a lower half of the steel structural frame 1101, wherein,
the upper unit includes:
an upper press cylinder 1102 detachably connected to an upper portion of the steel structural frame 1101, and including a first cylinder and a first piston rod located within the first cylinder;
an upper sleeve assembly fitted to an outer side of the upper pressure cylinder 1102 and including a first transition metal sleeve 1104 and a first metal guide sleeve 1105 located below the first transition metal sleeve 1104, wherein the first transition metal sleeve 1104 is fitted to an upper outer side of the upper pressure cylinder 1102 and detachably connected to an upper portion of the steel structural frame 1101, and the first metal guide sleeve 1105 is fitted to a lower outer side of the upper pressure cylinder 1102 and mounted to the steel structural frame 1101 for guiding a first piston rod of the upper pressure cylinder 1102 to vertically move up and down;
an upper jaw portion 1106 having one end detachably connected to a lower portion of the upper pressure cylinder 1102 and the other end for holding the product 1300 to be produced;
the lower unit includes:
a pressing cylinder 1108 detachably connected to a lower portion of the steel structural frame 1101, and including a second cylinder and a second piston rod located inside the second cylinder;
a lower bushing assembly which is sleeved to the outside of the lower cylinder 1108 and includes a second transition metal bushing 1109 and a second metal guide bushing 1111 positioned above the second transition metal bushing 1109, wherein the second transition metal bushing 1109 is sleeved to the outside of the lower portion of the lower cylinder 1108 and is detachably connected to the lower portion of the steel structural frame 1101, and the second metal guide bushing 1111 is sleeved to the outside of the upper portion of the lower cylinder 1108 and is mounted to the steel structural frame 1101 for guiding the second piston rod of the lower cylinder 1108 to vertically move up and down;
a lower jaw portion 1107 having one end detachably connected to the upper portion of the lower cylinder 1108 and the other end for holding the article 1300 to be produced.
In a preferred embodiment, the upper unit may further comprise a first flange 1103, the first flange 1103 may pass through a first transition metal bushing 1104 by a first threaded connection, fixedly mounting the first transition metal bushing 1104 to the steel structural frame 1101; the lower unit may also include a second flange 1110, the second flange 1110 may pass through a second transition metal bushing 1109 by a second threaded connection, fixedly mounting the second transition metal bushing 1109 to the steel structural frame 1101.
In a preferred embodiment, the first threaded connection may be a long stud and the second threaded connection may be a long stud.
In a preferred embodiment, the rod head of the first piston rod of the upper pressure cylinder 1102 may have an external thread, the first flange 1103 may be provided with a first internal threaded hole, and the rod head of the first piston rod may be screwed into the first internal threaded hole of the first flange 1103; the rod head of the second piston rod of the lower cylinder 1108 may have an external thread, the second flange 1110 may be provided with a second internal threaded hole, and the rod head of the second piston rod may be threadedly connected to the second internal threaded hole of the second flange 1110.
In a preferred embodiment, the upper pressure cylinder 1102 and the upper jaw portion 1106 may be connected by a snap-fit connection in combination with a bolt connection, and the lower pressure cylinder 1108 and the lower jaw portion 1107 may be connected by a snap-fit connection in combination with a bolt connection.
In a preferred embodiment, a dovetail may be provided at the bottom of the lower portion of the upper pressure cylinder 1102 and a corresponding dovetail groove may be provided at the top of the upper jaw portion 1106, or a dovetail groove may be provided at the bottom of the lower portion of the upper pressure cylinder 1102 and a corresponding dovetail may be provided at the top of the upper jaw portion 1106, so that the upper pressure cylinder 1102 and the upper jaw portion 1106 may be fixedly connected together by inserting the dovetails into the dovetail grooves and coupling the dovetails with bolts; the top of the upper portion of the lower pressing cylinder 1108 may be provided with a dovetail and the bottom of the lower jaw portion 1107 may be provided with a corresponding dovetail, or the top of the upper portion of the lower pressing cylinder 1108 may be provided with a dovetail and the bottom of the lower jaw portion 1107 may be provided with a corresponding dovetail, so that the lower pressing cylinder 1108 and the lower jaw portion 1107 may be fixedly connected together by inserting the dovetail into the dovetail and combining with the bolt connection.
Typically, the upper pressure cylinder 1102 and the lower pressure cylinder 1108 may each be a hydraulic cylinder or an air cylinder, such as a hydro cylinder or the like.
In a preferred embodiment, both the first transition metal bushing 1104 and the second transition metal bushing 1109 may be made of steel.
In a preferred embodiment, both the first metal guide sleeve 1105 and the second metal guide sleeve 1111 may be formed from copper. In other embodiments, the first metal guide sleeve 1105 and the second metal guide sleeve 1111 may also be made of steel or other metal material having a suitable hardness.
In a preferred embodiment, the upper jaw portion 1106 may have an upper clamping portion for clamping the article 1300 to be produced, which may be in a zigzag tooth configuration; the lower jaw portion 1107 may have a lower gripping portion for gripping the article 1300 to be produced, which may be in a serrated dental configuration.
Further, the present invention also provides a straightening machine comprising the jaw for an aluminum extrusion straightening machine as described in any of the above embodiments.
The following examples describe a straightener for the jaws of an aluminum extrusion straightener in one embodiment of the invention.
Referring to fig. 4, the straightener can include a jaw 1000 for an aluminum extrusion straightener, and the jaw 1000 can include a primary stretch head arrangement 1100 and a secondary stretch head arrangement 1200 symmetrically disposed on opposite sides of the straightener.
Since the jaw structures of the main stretching head device 1100 and the sub-stretching head device 1200 are completely the same, only the jaw structure of the main stretching head device 1100 will be described as an example.
The first flange 1103 with internal threaded holes may be fixed above the steel structural frame 1101 by long studs passing through the first transition metal sleeve 1104. The piston rod head with the external threads of the upper pressing cylinder 1102 can be in threaded connection with the first flange 1103 with the internal threaded hole, and the jaw part 1106 on the stretching head and the upper pressing cylinder 1102 are inserted and connected through the dovetail joint and the dovetail groove and then fixed by the bolt, so that the upper pressing cylinder 1102 pushes the jaw part 1106 on the stretching head to press downwards to clamp the product 1300. The first metal guide sleeve 1105 in fig. 4 primarily provides a guide for the upper press cylinder 1102 to press down.
The second flange 1110 with the internal threaded holes can be fixed below the steel structural frame 1101 by long studs passing through the second transition metal sleeve 1109. The piston rod head with the external threads of the lower pressing cylinder 1108 can be connected with the second flange 1110 with the internal threaded hole through threads, and the stretching head lower jaw 1107 and the lower pressing cylinder 1108 are inserted and connected through a dovetail joint and a dovetail groove and then fixed by combining bolts, so that the lower pressing cylinder 1108 pushes the stretching head lower jaw 1107 to press upwards to clamp the product 1300. In fig. 4, a second metal guide sleeve 1111 is provided for guiding the pressing of the upper pressing cylinder 1102 and the lower pressing cylinder 1108.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Finally, it should be noted that: the above examples are only for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A jaw for an aluminum extrusion straightening machine is characterized by comprising a main stretching head device and an auxiliary stretching head device which are symmetrically arranged at two opposite sides of the straightening machine, wherein the main stretching head device and the auxiliary stretching head device have the same structure, the main stretching head device and the auxiliary stretching head device respectively comprise a steel structural frame, an upper unit positioned at the upper half part of the steel structural frame and a lower unit positioned at the lower half part of the steel structural frame, the jaw is provided with a jaw body, the jaw body is provided with a,
the upper unit includes:
the upper pressure cylinder is detachably connected to the upper part of the steel structure frame and comprises a first cylinder body and a first piston rod positioned in the first cylinder body;
the upper sleeve assembly is sleeved on the outer side of the upper pressure cylinder and comprises a first transition metal sleeve and a first metal guide sleeve positioned below the first transition metal sleeve, wherein the first transition metal sleeve is sleeved on the outer side of the upper part of the upper pressure cylinder and is detachably connected to the upper part of the steel structure frame, and the first metal guide sleeve is sleeved on the outer side of the lower part of the upper pressure cylinder and is installed on the steel structure frame and used for guiding a first piston rod of the upper pressure cylinder to vertically move up and down;
an upper jaw portion having one end detachably connected to a lower portion of the upper cylinder and the other end for holding a product to be produced;
the lower unit includes:
the lower pressure cylinder is detachably connected to the lower part of the steel structure frame and comprises a second cylinder body and a second piston rod positioned in the second cylinder body;
the lower sleeve assembly is sleeved on the outer side of the lower pressing cylinder and comprises a second transition metal sleeve and a second metal guide sleeve positioned above the second transition metal sleeve, wherein the second transition metal sleeve is sleeved on the outer side of the lower part of the lower pressing cylinder and is detachably connected to the lower part of the steel structure frame, and the second metal guide sleeve is sleeved on the outer side of the upper part of the lower pressing cylinder and is installed on the steel structure frame and used for guiding a second piston rod of the lower pressing cylinder to vertically move up and down;
and a lower jaw portion having one end detachably connected to an upper portion of the lower cylinder and the other end for holding a product to be produced.
2. The jaws of claim 1,
the upper unit further comprises a first flange passing through the first transition metal sleeve by a first threaded connection, fixedly mounting the first transition metal sleeve to the steel structural frame;
the lower unit further includes a second flange that fixedly mounts the second transition metal sleeve to the steel structural frame by passing the second transition metal sleeve through a second threaded connection.
3. The jaws of claim 2 wherein the first threaded connector is a long stud and the second threaded connector is a long stud.
4. The jaws of claim 2 or 3,
the rod head of the first piston rod of the upper pressure cylinder is provided with an external thread, the first flange is provided with a first internal threaded hole, and the rod head of the first piston rod is connected to the first internal threaded hole of the first flange in a threaded manner;
the rod head of the second piston rod of the lower pressure cylinder is provided with an external thread, the second flange is provided with a second internal thread hole, and the rod head of the second piston rod is in threaded connection with the second internal thread hole of the second flange.
5. The jaws of claim 1 wherein the upper cylinder is connected to the upper jaw portion by a snap-fit connection in combination with a bolt connection, and the lower cylinder is connected to the lower jaw portion by a snap-fit connection in combination with a bolt connection.
6. The jaws of claim 5,
the bottom of the lower part of the upper pressure cylinder is provided with a dovetail joint and the top of the upper jaw part is provided with a corresponding dovetail joint, or the bottom of the lower part of the upper pressure cylinder is provided with a dovetail joint and the top of the upper jaw part is provided with a corresponding dovetail joint, so that the upper pressure cylinder and the upper jaw part are fixedly connected together by inserting the dovetail joint into the dovetail joint and combining bolt connection;
the dovetail joint is arranged at the top of the upper portion of the lower pressing cylinder, the bottom of the lower jaw portion is provided with a corresponding dovetail groove, or the dovetail joint is arranged at the top of the upper portion of the lower pressing cylinder, the bottom of the lower jaw portion is provided with a corresponding dovetail joint, and the dovetail joint is inserted into the dovetail groove and connected with a bolt, so that the lower pressing cylinder and the lower jaw portion are fixedly connected together.
7. The jaws of claim 1 wherein the first transition metal sleeve and the second transition metal sleeve are each made of steel.
8. The jaws of claim 1 wherein the first metal guide sleeve and the second metal guide sleeve are each made of copper.
9. The jaws of claim 1, wherein the upper jaw portion has an upper gripping portion for gripping a product to be produced, which has a saw-tooth configuration; and the lower jaw part is provided with a lower clamping part for clamping a product to be produced, and the lower clamping part is of a sawtooth-shaped tooth structure.
10. A straightening machine comprising jaws according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911335596.XA CN111167875B (en) | 2019-12-23 | 2019-12-23 | Jaw for aluminum extrusion straightening machine and straightening machine comprising jaw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN202114083U (en) * | 2011-06-22 | 2012-01-18 | 无锡市林联机械有限公司 | Plain vice structure of automatic drawing machine |
| CN205324380U (en) * | 2016-02-01 | 2016-06-22 | 山东山尔铝业有限公司 | Aluminium prduct process uses high -efficient drawing -in machine |
| CN206997376U (en) * | 2017-07-26 | 2018-02-13 | 佛山欧玛福机械工程有限公司 | A kind of stretching-machine head for vertically moving jaw up and down |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2854681B2 (en) * | 1990-06-29 | 1999-02-03 | 昭和アルミニウム株式会社 | Stretcher for extrusion equipment |
| JPH0466221A (en) * | 1990-07-05 | 1992-03-02 | Showa Alum Corp | Method for chucking work on stretcher |
| CN201067771Y (en) * | 2007-06-25 | 2008-06-04 | 郭益村 | Side by side oil cylinder tongs mouth device |
| CN201921947U (en) * | 2010-12-09 | 2011-08-10 | 江苏金方圆数控机床有限公司 | Pneumatic clamp |
| CN202114083U (en) * | 2011-06-22 | 2012-01-18 | 无锡市林联机械有限公司 | Plain vice structure of automatic drawing machine |
| CN205324380U (en) * | 2016-02-01 | 2016-06-22 | 山东山尔铝业有限公司 | Aluminium prduct process uses high -efficient drawing -in machine |
| CN206997376U (en) * | 2017-07-26 | 2018-02-13 | 佛山欧玛福机械工程有限公司 | A kind of stretching-machine head for vertically moving jaw up and down |
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| CN111167875B (en) | 2022-03-15 |
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