Window frame profile hot bending core penetrating device and using method thereof

Abstract

The core penetrating device comprises a guide sleeve, a steering head is connected to the guide sleeve and comprises an inner cavity core and a positioning pin, the inner cavity core comprises a connecting block, a first hanging lug with a first connecting hole is arranged in the middle of the left end face of the connecting block, and a second hanging lug with a second connecting hole is arranged in the middle of the right end face of the connecting block. A second hanging lug with a second connecting hole is arranged on the upper side of the right end face of the connecting block, a third hanging lug with a third connecting hole is arranged on the lower side of the right end face of the connecting block, the space between the second hanging lug and the third hanging lug is a connecting cavity, a connecting threaded hole is formed in the center point of one end of the guide sleeve, and a U-shaped frame is arranged at the other end of the guide sleeve. Symmetrical fourth connecting holes are formed in the two side walls of the U-shaped frame, a first hanging lug on the steering head is arranged between the two side walls of the U-shaped frame, and positioning pins penetrate through the fourth connecting holes and the first connecting holes to connect the guide sleeve and the steering head together. The supporting device is placed in a profile cavity for supporting, and the problem that collapse or pits occur when a window frame profile is bent in a simmering mode is solved.

Description

Technical Field

[0001] The invention relates to the field of manufacturing, and in particular to a window frame profile bending and core-penetrating device and a use method thereof. Background Art

[0002] The processing of profile sections in the rail transit field is relatively extensive, and the sections used on car body parts are also various. The bending of aluminum profile window frames is also a big challenge. Most of the existing window frame bending has problems such as collapse or pits at the bending point, twisting out of tolerance, affecting production efficiency and precision. Summary of the invention

[0003] The technical problem to be solved by the present invention is that in the prior art, when a window frame is bent, collapse or pits are easily formed at the bent part.

[0004] In order to solve the above technical problems, a technical solution provided by the present invention is: A window frame profile bending and core-piercing device comprises a guide sleeve, the guide sleeve is connected to a steering head, the steering head comprises an inner cavity core and a positioning pin, the inner cavity core comprises a connecting block, a first hanging ear with a first connecting hole is arranged in the middle position of the left end face of the connecting block, a second hanging ear with a second connecting hole is arranged on the upper side of the right end face of the connecting block, and a third hanging ear with a third connecting hole is arranged on the lower side, the space between the second hanging ear and the third hanging ear is a connecting cavity, the size of the connecting cavity matches the size of the first hanging ear, a connecting threaded hole is arranged at the center point of one end of the guide sleeve, and a U-shaped frame is arranged at the other end, symmetrical fourth connecting holes are arranged on both side walls of the U-shaped frame, the size between the two side walls of the U-shaped frame matches the size of the first hanging ear, the first hanging ear on the steering head is arranged between the two side walls of the U-shaped frame, and the guide sleeve and the steering head are connected together by passing the fourth connecting hole and the first connecting hole with a positioning pin.

[0005] Furthermore, at least two steering heads are provided, and the first hanging ear on one of the steering heads is placed into the connecting cavity on the other steering head. Another positioning pin is used to sequentially penetrate into the second connecting hole, the first connecting hole and the third connecting hole which are symmetrical up and down, so as to connect the two steering heads. Different numbers of steering heads can be selected according to the different bending angles required to adapt to the arc lengths corresponding to different angles.

[0006] For example, when the bending angle is 90°, the length of the integral steering head after being connected is no more than half of the length of the arc to be bent.

[0007] Furthermore, the second hanging ear and the third hanging ear are symmetrically arranged up and down, the second connecting hole and the third connecting hole are symmetrically arranged up and down, and the first hanging ear, the second hanging ear and the third hanging ear are all integrally connected to the connecting block.

[0008] Furthermore, the ends of the first hanging ear, the second hanging ear and the third hanging ear away from the connecting block are all arc-shaped structures, and the ends on the two side walls of the U-shaped frame corresponding to the steering head are also arc-shaped structures. The first hanging ear can rotate freely around the corresponding positioning pin between the two side walls of the U-shaped frame and in the connecting cavity, so that the steering head can turn with the bend without any jamming.

[0009] Furthermore, the guide sleeve, inner cavity core and positioning pin are all made of carbon steel and placed in the cavity of the profile, which can provide support and prevent the profile surface from being dented.

[0010] Furthermore, before placing the guide sleeve and the steering head into the cavity on the window frame to be bent, lubricating oil is applied to the inner cavity core and the positioning pin to facilitate the steering of the steering head.

[0011] A method for using a window frame profile bending core-penetrating device comprises the following steps: Step 1: Two support limit plates are set front and rear on the same horizontal line in the horizontal direction of the original pipe bending machine unit, namely a front support limit plate and a rear support limit plate. The front support limit plate is set at a position close to the bending mold on the original pipe bending machine. A U-shaped groove opening upward is provided on the upper end surface of the front support limit plate. An internal threaded hole is provided on one end of the rear support limit plate facing the front support limit plate, and the other end is connected to the telescopic end of the hydraulic cylinder. The hydraulic cylinder is set in the horizontal direction of the original pipe bending machine unit.

[0012] Step 2: Make a linear guide rod, process a left screw with external threads at one end of the guide rod, and process a right screw with external threads at the other end, the outer size of the left screw matches the inner size of the internal threaded hole, and the outer size of the right screw matches the inner size of the connecting threaded hole; Step 3: Screw the left screw on the guide rod into the internal threaded hole on the rear support limit plate, and the end with the right screw passes through the U-shaped groove on the front support limit plate and extends toward one side of the bending mold; Step 4: Assemble the steering head and the guide sleeve, put the first hanging ear on one of the steering heads into the connecting cavity on the other steering head, use the corresponding positioning pin to sequentially penetrate the second connecting hole, the first connecting hole and the third connecting hole which are symmetrical up and down, and then connect the two steering heads. If other steering heads need to be connected, put the first hanging ear on the other steering heads into the connecting cavity on the previous steering head, and connect them using the corresponding positioning pin. Then put the first hanging ear on the first steering head of the connected steering heads in a string between the two side walls of the U-shaped frame on the guide sleeve, and use the corresponding positioning pin to penetrate the fourth connecting hole and the first connecting hole to connect the steering head and the guide sleeve together; Step 5: The guide sleeve with the steering head is connected and fixed to the guide rod by connecting the threaded hole and the right screw rod, and after the connection, the steering head as a whole forms a straight line and is arranged on one side of the bending mold; Step 6: Apply lubricating oil to the inner cavity core and the positioning pin on the steering head, and pass the window frame profile to be bent through the connected steering head using the cavity thereon, until the steering head reaches the position where the window frame profile needs to be bent, and at this time, the end of the window frame profile passed through the steering head is set in the U-shaped groove on the front support limit plate; Step 7: Use the first and second molds on the original pipe bending machine to limit the window frame profile to be bent, and ensure that the window frame profile is in contact with the corresponding inner wall of the U-shaped groove in the U-shaped groove, and then use the bending mold on the original pipe bending machine to bend the window frame profile; Step 8: After bending, loosen the oil cylinder on the original pipe bending machine, retreat the first and second molds, pull the bent window frame profile out of the window frame profile bending core-penetrating device, and inspect the size and shape of the bent window frame profile.

[0013] In step one, a long T-slot is provided in the horizontal direction of the pipe bending unit on the original pipe bending machine, the front support limit plate is fixed to the long T-slot by fastening bolts, and a guide column is provided on the lower end surface of the rear support limit plate. The guide column is arranged in the long T-slot and can freely reciprocate in the long T-slot. The telescopic movement of the hydraulic cylinder is synchronized with the horizontal movement of the feeding device on the original pipe bending machine. When the feeding device on the original pipe bending machine moves, the hydraulic cylinder drives the rear support limit plate to move synchronously in the horizontal direction in the long T-slot.

[0014] In step four, the number of the steering heads is related to the bending angle. When the bending angle is equal to 90°, the length of the entire steering head after connection is no more than half of the length of the arc to be bent.

[0015] In step seven, when the window frame profile that needs to be bent is bent, the steering head can rotate according to the bending angle.

[0016] The guide rod can freely move back and forth in the U-shaped groove, and the steering head and the guide sleeve can freely move back and forth in the cavity on the window frame profile to be bent.

[0017] The bending mold on the original pipe bending machine refers to a window frame profile bending mold with application number 202223127942.5.

[0018] The beneficial effects of the present invention are: In the present invention, the guide sleeve and the steering head, as well as the steering heads and the steering heads can rotate freely around their respective corresponding positioning pins. When placed in the cavity on the window frame profile, they will rotate accordingly with the bending angle, which not only plays a supporting role but also does not damage the profile. Furthermore, the guide sleeve, inner cavity core and positioning pins are all made of carbon steel, which is sturdy and durable. They are placed in the profile cavity for support to avoid collapse or pits when the window frame profile is bent.

[0019] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only partial schematic diagrams of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of a window frame profile bending and core-piercing device of the present invention; Figure 2 for Figure 1 Exploded diagram of Figure 3 A schematic diagram of a window frame profile bending core-penetrating device of the present invention after bending in a window frame profile Figure 1 ; Figure 4 A schematic diagram of a window frame profile bending core-penetrating device of the present invention after bending in a window frame profile Figure 2 .

[0022] In the figure, 1-guide sleeve, 2-locating pin, 3-connecting block, 4-first connecting hole, 5-first hanging ear, 6-second connecting hole, 7-second hanging ear, 8-third connecting hole, 9-third hanging ear, 10-connecting cavity, 11-connecting threaded hole, 12-U-shaped frame, 13-fourth connecting hole, 14-steering head, 15-window frame profile. DETAILED DESCRIPTION

[0023] Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein, which are instead provided for a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0024] In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "setting", "connection", "fixation", and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0025] The names of the messages or information exchanged between multiple devices in the embodiments of the present invention are only used for illustrative purposes, and are not used to limit the scope of these messages or information.

[0026] Embodiment: A window frame profile bending and core-piercing device comprises a guide sleeve 1, to which a steering head 14 is connected, and the steering head 14 comprises an inner cavity core and a positioning pin 2.

[0027] The inner cavity core includes a connecting block 3, a first hanging ear 5 with a first connecting hole 4 is arranged in the middle position of the left end surface of the connecting block 3, the first hanging ear 5 and the connecting block 3 are integrally connected, a second hanging ear 7 with a second connecting hole 6 is arranged on the upper side of the right end surface of the connecting block 3, and a third hanging ear 9 with a third connecting hole 8 is arranged on the lower side, the second hanging ear 7 and the third hanging ear 9 are symmetrically arranged up and down, the second connecting hole 6 and the third connecting hole 8 are symmetrically arranged up and down, and the second hanging ear 7 and the third hanging ear 9 are integrally connected to the connecting block 3.

[0028] The space between the second hanging ear 7 and the third hanging ear 9 is a connecting cavity 10, the size of which matches that of the first hanging ear 5, and the ends of the first hanging ear 5, the second hanging ear 7 and the third hanging ear 9 away from the connecting block 3 are all arc-shaped structures.

[0029] A connecting threaded hole 11 is provided at the center point of one end of the guide sleeve 1, and a U-shaped frame 12 is provided at the other end. Symmetrical fourth connecting holes 13 are provided on the two side walls of the U-shaped frame 12. The size between the two side walls of the U-shaped frame 12 matches the size of the first hanging ear 5, and the ends of the two side walls of the U-shaped frame 12 corresponding to the steering head 14 are also arc-shaped structures.

[0030] In this embodiment, three steering heads 14 are provided, the bending angle of the window frame is 90°, and the positioning pin 2 is a stepped shaft to prevent the positioning pin 2 from falling off after installation.

[0031] When assembling the core-penetrating device, first assemble the three steering heads 14 together, specifically: first put the first hanging ear 5 on the second steering head 14 into the connecting cavity 10 on the first steering head 14, and use the corresponding positioning pin 2 to successively penetrate the second connecting hole 6, the first connecting hole 4 and the third connecting hole 8 which are symmetrical up and down, and then connect the first and second steering heads 14, and then put the first hanging ear 5 on the third steering head 14 into the connecting cavity 10 on the second steering head 14, and use the corresponding positioning pin 2 to successively penetrate the second connecting hole 6, the first connecting hole 4 and the third connecting hole 8 which are symmetrical up and down, and then connect the second and third steering heads 14. The overall length of the three steering heads 14 is slightly less than half of the arc of the angle to be bent.

[0032] Put the first hanging ear 5 on the first steering head 14 of the three assembled steering heads 14 into the space between the two side walls of the U-shaped frame 12 on the guide sleeve 1, and use the corresponding positioning pin 2 to pass through the fourth connecting hole 13 and the first connecting hole 4 to connect the steering head 14 to the guide sleeve 1.

[0033] When using the core-penetrating device to perform bending operations, it is necessary to first set two support limit plates in front and behind on the same horizontal line of the long T-slot in the horizontal direction of the original pipe bending machine unit, namely the front support limit plate and the rear support limit plate. The front support limit plate is fixed to the long T-slot near the bending mold on the original pipe bending machine by fastening bolts. A U-shaped groove opening upward is provided on the upper end face of the front support limit plate, and a guide column is provided on the lower end face of the rear support limit plate. The guide column is set in the long T-slot and can move back and forth freely in the long T-slot. An internal threaded hole is provided on the end of the rear support limit plate facing the front support limit plate, and the other end is connected to the telescopic end of the hydraulic cylinder. The hydraulic cylinder is set in the horizontal direction of the original pipe bending machine unit.

[0034] The telescopic movement of the hydraulic cylinder is synchronized with the horizontal movement of the feeding device on the original pipe bending machine. While the feeding device on the original pipe bending machine moves, the hydraulic cylinder drives the rear support limit plate to move synchronously in the horizontal direction in the long T-slot.

[0035] Then make a linear guide rod, process a left screw rod with external threads at one end of the guide rod, and process a right screw rod with external threads at the other end, the external size of the left screw rod matches the internal size of the internal threaded hole, and the external size of the right screw rod matches the internal size of the connecting threaded hole.

[0036] Screw the left screw on the guide rod into the internal threaded hole on the rear support limit plate, and the end with the right screw passes through the U-shaped groove on the front support limit plate and extends toward one side of the bending mold.

[0037] Subsequently, the guide sleeve 1 with the steering head 14 is connected and fixed on the guide rod by means of the connecting threaded hole 11 and the right screw rod. After the connection, the integral steering head 14 forms a straight line and is arranged on one side of the bending mold.

[0038] Then apply lubricating oil on the inner core and positioning pin 2 on the steering head 14, and pass the window frame profile 15 that needs to be bent through the connected steering head 14 using the cavity thereon, until the steering head 14 reaches the position where the window frame profile 15 needs to be bent. At this time, the end of the window frame profile 15 passed through the steering head 14 is set in the U-shaped groove on the front support limit plate.

[0039] The first and second molds on the original pipe bending machine are used to limit the window frame profile 15 that needs to be bent, and ensure that the window frame profile 15 is in contact with the corresponding inner wall of the U-shaped groove in the U-shaped groove, and then the window frame profile 15 is bent using the bending mold on the original pipe bending machine; when bending the window frame profile 15 that needs to be bent, the steering head 14 can rotate according to the bending angle.

[0040] After bending, loosen the oil cylinder on the original pipe bending machine, retreat the first and second dies, and draw the bent window frame profile 15 out of the window frame profile 15 bending core-penetrating device, and inspect the size and shape of the bent window frame profile 15.

[0041] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A window frame profile bending and core-threading device, comprising a guide sleeve, characterized in that: The guide sleeve is connected to a steering head, and the steering head includes an inner cavity core and a positioning pin. The inner cavity core includes a connecting block. A first hanging ear with a first connecting hole is arranged in the middle position of the left end surface of the connecting block. A second hanging ear with a second connecting hole is arranged on the upper side of the right end surface of the connecting block, and a third hanging ear with a third connecting hole is arranged on the lower side. The space between the second hanging ear and the third hanging ear is a connecting cavity, and the size of the connecting cavity matches the size of the first hanging ear. A connecting threaded hole is arranged at the center point of one end of the guide sleeve, and a U-shaped frame is arranged at the other end. Symmetrical fourth connecting holes are arranged on both side walls of the U-shaped frame, and the size between the two side walls of the U-shaped frame matches the size of the first hanging ear. The first hanging ear on the steering head is arranged between the two side walls of the U-shaped frame, and the guide sleeve and the steering head are connected together by passing the fourth connecting hole and the first connecting hole with a positioning pin.

2. A window frame profile bending and core-piercing device according to claim 1, characterized in that: At least two steering heads are provided, and the first hanging ear on one of the steering heads is placed into the connecting cavity on the other steering head, and another positioning pin is used to sequentially penetrate into the second connecting hole, the first connecting hole and the third connecting hole which are symmetrical up and down, thereby connecting the two steering heads.

3. A window frame profile bending and core-piercing device according to claim 2, characterized in that: The first hanging ear can freely rotate around the corresponding positioning pin between the two side walls of the U-shaped frame and in the connecting cavity.

4. A window frame profile bending and core-piercing device according to claim 3, characterized in that: The second hanging ear and the third hanging ear are symmetrically arranged up and down, the second connecting hole and the third connecting hole are symmetrically arranged up and down, and the first hanging ear, the second hanging ear and the third hanging ear are all integrally connected to the connecting block.

5. A window frame profile bending and core-piercing device according to claim 4, characterized in that: The ends of the first hanging ear, the second hanging ear and the third hanging ear away from the connecting block are all arc-shaped structures, and the ends of the two side walls of the U-shaped frame corresponding to the steering head are also arc-shaped structures.

6. A method for using a window frame profile bending and core-piercing device according to any one of claims 1 to 5, characterized in that: The following steps are involved: Step 1: two support limit plates are arranged front and back on the same horizontal straight line in the horizontal direction of the original pipe bending machine unit, namely a front support limit plate and a rear support limit plate, the front support limit plate is arranged at a position close to the bending die on the original pipe bending machine, a U-shaped groove opening upward is arranged on the upper end surface of the front support limit plate, an internal threaded hole is arranged on one end of the rear support limit plate facing the front support limit plate, and the other end is connected to the telescopic end of the hydraulic cylinder, and the hydraulic cylinder is arranged in the horizontal direction of the original pipe bending machine unit; Step 2: Make a linear guide rod, process a left screw with external threads at one end of the guide rod, and process a right screw with external threads at the other end, the outer size of the left screw matches the inner size of the internal threaded hole, and the outer size of the right screw matches the inner size of the connecting threaded hole; Step 3: Screw the left screw on the guide rod into the internal threaded hole on the rear support limit plate, and the end with the right screw passes through the U-shaped groove on the front support limit plate and extends toward one side of the bending mold; Step 4: Assemble the steering head and the guide sleeve, put the first hanging ear on one of the steering heads into the connecting cavity on the other steering head, use the corresponding positioning pin to sequentially penetrate the second connecting hole, the first connecting hole and the third connecting hole which are symmetrical up and down, and then connect the two steering heads. If other steering heads need to be connected, put the first hanging ear on the other steering heads into the connecting cavity on the previous steering head, and connect them using the corresponding positioning pin. Then put the first hanging ear on the first steering head of the connected steering heads in a string between the two side walls of the U-shaped frame on the guide sleeve, and use the corresponding positioning pin to penetrate the fourth connecting hole and the first connecting hole to connect the steering head and the guide sleeve together; Step 5: The guide sleeve with the steering head is connected and fixed to the guide rod by connecting the threaded hole and the right screw rod, and after the connection, the steering head as a whole forms a straight line and is arranged on one side of the bending mold; Step 6: Apply lubricating oil to the inner cavity core and the positioning pin on the steering head, and pass the window frame profile to be bent through the connected steering head using the cavity thereon, until the steering head reaches the position where the window frame profile needs to be bent, and at this time, the end of the window frame profile passed through the steering head is set in the U-shaped groove on the front support limit plate; Step 7: Use the first and second molds on the original pipe bending machine to limit the window frame profile to be bent, and ensure that the window frame profile is in contact with the corresponding inner wall of the U-shaped groove in the U-shaped groove, and then use the bending mold on the original pipe bending machine to bend the window frame profile; Step 8: After bending, loosen the oil cylinder on the original pipe bending machine, retreat the first and second molds, pull the bent window frame profile out of the window frame profile bending core-penetrating device, and inspect the size and shape of the bent window frame profile.

7. The method for using the window frame profile bending and core-piercing device according to claim 6 is characterized by: In step one, a long T-slot is provided in the horizontal direction of the pipe bending unit on the original pipe bending machine, the front support limit plate is fixed to the long T-slot by fastening bolts, and a guide column is provided on the lower end surface of the rear support limit plate. The guide column is arranged in the long T-slot and can freely reciprocate in the long T-slot. The telescopic movement of the hydraulic cylinder is synchronized with the horizontal movement of the feeding device on the original pipe bending machine. When the feeding device on the original pipe bending machine moves, the hydraulic cylinder drives the rear support limit plate to move synchronously in the horizontal direction in the long T-slot.

8. The method for using the window frame profile bending and core-piercing device according to claim 7, characterized in that: In step four, the number of the steering heads is related to the bending angle. When the bending angle is equal to 90°, the length of the steering head as a whole after connection is no more than half the length of the arc to be bent.

9. The method for using the window frame profile bending and core-piercing device according to claim 8, characterized in that: In step seven, when the window frame profile that needs to be bent is bent, the steering head can rotate along with the bending angle.

10. The method for using the window frame profile bending and core-piercing device according to claim 9, characterized in that: The guide rod can freely move back and forth in the U-shaped groove, and the steering head and the guide sleeve can freely move back and forth in the cavity on the window frame profile to be bent.

Images