A device for stretch-drawing a luggage rack metal profile

Abstract

The application provides a luggage rack metal profile stretch-drawing forming device, and relates to the luggage rack processing technical field.The device comprises a gantry and a stretch-drawing module, the gantry is provided with an X-direction module, the X-direction module is connected with a Z-direction module, the Z-direction module is rotationally connected with a clamping module, the clamping module clamps the profile along the Y direction and sends the profile into the stretch-drawing module; the stretch-drawing module comprises an electromagnetic chuck and a core column, the electromagnetic chuck is arranged above the core column, the core columns are densely arranged on the XY plane and each core column is arranged in a sliding manner along the Z direction, the upper portion of part of the core columns is further provided with a baffle, one side of the baffle is cut with a curve, a channel is left between the electromagnetic chuck and the baffle, and the core column close to the curve side and not blocked by the baffle is attracted by the electromagnetic chuck when the electromagnetic chuck is electrified. The stretch-drawing forming device can quickly adjust the stretch-drawing curve according to the customer demand, the shape of the core column in contact with the profile is further accurately controlled through the electromagnetic chuck, and thus the flexibility and production efficiency are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the luggage rack processing technical field, more specifically, it relates to a kind of for luggage rack metal profile stretch bending forming device. BACKGROUND

[0002] With the vigorous development of domestic car industry, SUV and city MPV model are favored, the demand of such model for vehicle luggage rack is more and more big. Commonly used SUV and MPV model vehicle luggage rack is usually made of metal profile with equal section, linear design and linear process treatment to cater to the design of car body. Specifically, this design has the advantage of visual aesthetic, can enhance the overall modeling sense and high-grade sense of vehicle.

[0003] However, the current commonly used CNC machining method can realize complex shape design, but also leads to higher production cost and longer processing time. Because CNC machining process needs to frequently change processing datum, causing waste of raw materials.

[0004] Secondly, although die forming process can improve production efficiency, but the die design of large bending radius makes it difficult to core-pulling. Based on this, stretch bending forming process gradually becomes the preferred solution in the industry, however, the existing technology lacks self-adaptive stretch bending die that can customize curve according to customer needs, which forces manufacturers to customize multiple sets of dies for different needs, thereby greatly increasing the cost. SUMMARY

[0005] In view of the deficiencies in the prior art, the purpose of the present application is to provide a kind of for luggage rack metal profile stretch bending forming device, which solves the problem that the curve of the die in the prior art cannot be adjusted.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0007] The present application provides a kind of for luggage rack metal profile stretch bending forming device, including portal frame and stretch bending module, the portal frame is equipped with X direction module, the X direction module is connected with Z direction module, the Z direction module is rotatably connected with clamping module, the clamping module is along Y direction clamping profile and sends profile into stretch bending module;The stretch bending module includes electromagnetic chuck and core column, the electromagnetic chuck is arranged above the core column, the core column is densely distributed on XY plane and each core column is arranged in sliding mode along Z direction, the upper part of part of the core column is further provided with baffle, one side of the baffle is cut with curve, horizontal passage is left between electromagnetic chuck and baffle, the core column close to one side of curve and not being shielded by the baffle is attracted when the electromagnetic chuck is electrified, the stretch bending module further includes push jaw arranged in sliding mode along Y direction, the push jaw pushes profile into passage and tightens profile on the core column after being attracted and stretch bending forming.

[0008] According to one embodiment of the present application, the stretch-bending module comprises a base, one side of the top of the base is protruded and a sliding groove is formed on the protrusion along the Y direction, third air cylinders are slidingly arranged on both sides of the sliding groove, one end of the third air cylinder is connected with the push jaw, fourth air cylinders are arranged on both sides of the protrusion of the base, one end of the fourth air cylinder extends into the sliding groove and is connected with the corresponding third air cylinder, a receiving cavity is formed on the side of the top of the base away from the protrusion, a core mold is installed in the receiving cavity, the core mold comprises a box body for accommodating a core column, a baffle is installed at the receiving cavity, the electromagnetic chuck is connected with the side wall of the base through an adjustable support, the adjustable support is used for adjusting the relative position of the electromagnetic chuck and the core mold so that the electromagnetic chuck is directly above the core mold.

[0009] According to one embodiment of the present application, the adjustable support comprises a moving arm and a first support plate forming an L-shaped structure, the electromagnetic chuck is installed on the upper end face of the first support plate, one end of the first support plate is connected with the top end of the moving arm, a fifth air cylinder is fixedly connected with the middle part of the side wall of the base close to the core mold, first guide rods are slidingly arranged around the side wall of the base where the fifth air cylinder is located along the X direction, and one end of the fifth air cylinder and the first guide rods are fixedly connected with the moving arm.

[0010] According to one embodiment of the present application, the adjustable support comprises a moving arm and a second support plate, the second support plate is an L-shaped structure, the electromagnetic chuck is installed on the horizontal end face of the second support plate, the horizontal part of the second support plate is slidingly connected with the moving arm along the Z direction, a sixth air cylinder is embedded in the middle part of the top end of the moving arm, second guide rods are slidingly arranged on both sides of the moving arm along the Z direction, and the top end of the sixth air cylinder and the second guide rods are fixedly connected with the second support plate, a fifth air cylinder is fixedly connected with the middle part of the side wall of the base close to the core mold, first guide rods are slidingly arranged around the side wall of the base where the fifth air cylinder is located along the X direction, and one end of the fifth air cylinder and the first guide rods are fixedly connected with the moving arm.

[0011] According to one embodiment of the present application, the draw-bending module is provided with feeding and discharging conveyors on both sides along the X direction, and portal frames on both sides along the Y direction, the X direction module comprises an X direction crossbeam connected with the portal frames, an X direction support is slidably connected to the X direction crossbeam, an X direction rack is installed on one side of the X direction crossbeam along the X direction, a first motor is installed on the X direction support near the X direction rack, one end of the first motor is connected with a driving gear engaged with the X direction rack, the Z direction module comprises a Y direction crossbeam connected with the X direction supports on both sides, a Z direction frame is arranged below the Y direction crossbeam, first air cylinders are installed on both sides of the top end of the Y direction crossbeam, one end of the first air cylinders is connected with the Z direction frame below, two groups of Y direction modules are installed on the Z direction frame, the Y direction module comprises a Y direction sliding seat and a Y direction guide rod installed on the inner walls of the Z direction frame on both sides, a Y direction sliding block connected with the Y direction guide rod is arranged on the Y direction sliding seat, second air cylinders are also installed on both ends of the Z direction frame, a fixed block connected with one end of the corresponding second air cylinder is arranged on the upper end surface of the Y direction sliding seat, and the Y direction sliding seat is rotatably connected with the clamping module on the lower end surface.

[0012] According to one embodiment of the present application, the clamping module comprises a clamping jaw connected with the Y direction sliding seat, the clamping jaw comprises a shell, the lower end of the shell is provided with a first clamping block and a second clamping block, the first clamping block is fixedly connected with the shell, an opening is arranged on the lower end of the shell, one end of the second clamping block extends into the opening and is slidably connected with the shell, a lead screw is also installed in the shell, a threaded groove matched with the lead screw is arranged on the part of the second clamping block extending into the shell, one end of the shell is also provided with a second motor in power connection with one end of the lead screw, and the first clamping block and the second clamping block are used for clamping the profile.

[0013] According to one embodiment of the present application, the clamping module further comprises a rotary connecting head, the rotary connecting head is used for connecting the Y direction sliding seat and the clamping jaw, the rotary connecting head comprises a first rotary block and a second rotary block coaxially and rotatably connected, a first connecting piece is fixedly connected to the side wall of the first rotary block, a second connecting piece is fixedly connected to the side wall of the second rotary block, the first connecting piece and the second connecting piece are arranged close to each other and a spring is arranged between the first connecting piece and the second connecting piece.

[0014] According to one embodiment of the present application, the cross section of the core column is a regular hexagon, a regular octagon or a circle, and the core columns in the box are arranged in a honeycomb shape.

[0015] According to one embodiment of the present application, the base is provided with a bushing on the side walls along the X direction, a bolt is inserted into the bushing, and the both sides of the baffle are provided with a slot matched with the bolt.

[0016] To sum up, the present application includes at least one of the following beneficial technical effects:

[0017] 1) In this scheme, the pre-cut blocking piece is added in the stretch bending module, the stretch bending curve of the stretch bending die can be customized according to the customer demand, and the traditional stretch bending forming technology needs to design and set a special die for each curve, which not only increases the cost, but also reduces the production efficiency, the stretch bending forming device of the present application can quickly adjust the stretch bending curve according to the customer demand, and then further accurately control the shape of the core column in contact with the profile through the electromagnetic suction cup, thereby improving the flexibility and production efficiency.

[0018] 2) In this scheme, the steel sheet arranged in the channel ensures that the contact surface between the profile and the core column remains smooth during the stretch bending forming process, avoiding the generation of lines on the part of the profile in contact with the core column after stretch bending forming, reducing the product quality, at the same time, the core column adopts a honeycomb arrangement mode, ensuring that the core columns are closely attached, enhancing the controllability and consistency of the stretch bending forming quality. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the overall structure diagram of the first embodiment of the present application;

[0020] Figure 2 It is the structure diagram of the Z-direction module in the first embodiment of the present application;

[0021] Figure 3 It is the structure diagram of the X-direction module and the Z-direction module in the first embodiment of the present application;

[0022] Figure 4 It is Figure 3 It is the enlarged structure diagram of A in the first embodiment of the present application;

[0023] Figure 5 It is the structure diagram of the stretch bending module in the first embodiment of the present application;

[0024] Figure 6 It is the side view of the stretch bending module in the first embodiment of the present application;

[0025] Figure 7 It is the structure diagram of the core die in the first embodiment of the present application;

[0026] Figure 8 It is the working state diagram of the clamping module in the first embodiment of the present application;

[0027] Figure 9 It is the working diagram of the stretch bending module in the first embodiment of the present application;

[0028] Figure 10 It is Figure 9 It is the enlarged structure diagram of B in the first embodiment of the present application;

[0029] Figure 11 Structure diagram of the drawing-bending module in the second embodiment of the present application;

[0030] Figure 12 Working schematic diagram of the drawing-bending module in the second embodiment of the present application;

[0031] Figure 13 Based on the side view; Figure 3

[0032] Figure 14 Enlarged structure schematic diagram at C in Figure 13

[0033] Figure 15 Structure diagram of the rotary connecting head in the third embodiment of the present application.

[0034] The drawings are as follows: 1, gantry; 2, X-direction module; 201, X-direction cross beam; 202, X-direction rack; 203, X-direction support; 204, first motor; 3, Z-direction module; 301, Y-direction cross beam; 302, first air cylinder; 303, Z-direction frame; 4, Y-direction module; 401, Y-direction sliding seat; 4011, Y-direction sliding block; 4012, fixed block; 402, second air cylinder; 403, Y-direction guide rod; 5, clamping module; 501, clamping jaw; 5011, outer shell; 5012, first clamping block; 5013, second clamping block; 5014, screw rod; 5015, second motor; 502, rotary connecting head; 5021, first rotary block; 5022, first connecting sheet; 5023, second rotary block; 5024, second connecting sheet; 5025, spring; 6, drawing-bending module; 601, base; 6011, sliding groove; 6012, accommodating cavity; 6013, insertion hole; 602, third air cylinder; 603, pushing jaw; 604, fourth air cylinder; 605, moving arm; 606, first support plate; 6061, second support plate; 607, electromagnetic chuck; 608, core mold; 6081, box body; 6082, core column; 609, fifth air cylinder; 610, first guide rod; 611, sixth air cylinder; 612, second guide rod; 7, feeding conveyor belt; 8, discharging conveyor belt; 9, profile; 10, baffle; 11, steel sheet; 12, bolt; 13, passage. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0036] As Figures 1 to 10 ​​As shown, it is a device for luggage rack metal profile stretch forming of the first embodiment of the application, the portal frame 1 of the embodiment is provided with X direction module 2, X direction module 2 is connected with Z direction module 3, the bottom end of Z direction module 3 is rotatably connected with clamping module 5, stretch forming module 6 is provided with feeding conveyor belt 7 and discharging conveyor belt 8 respectively on both sides along X direction, clamping module 5 clamps profile 9 to be stretched from the belt surface of feeding conveyor belt 7 along Y direction, clamping module 5 sends profile 9 into stretch forming module 6 along X direction to carry out stretch forming operation, specifically as Figure 1 As shown, stretch forming module 6 is provided with portal frame 1 on both sides along Y direction, X direction module 2 includes X direction crossbeam 201 connected with portal frame 1, X direction crossbeam 201 is slidably connected with X direction support 203, only one side X direction crossbeam 201 is provided with X direction rack 202 along X direction, first motor 204 is installed on X direction support 203 close to X direction rack 202, one end of first motor 204 is connected with driving gear meshing with X direction rack 202, Z direction module 3 includes Y direction crossbeam 301 connected with both sides X direction support 203, Z direction frame 303 is arranged below Y direction crossbeam 301, first cylinder 302 is installed on both sides of the top end of Y direction crossbeam 301, one end of first cylinder 302 is connected with Z direction frame 303 below, two groups of Y direction module 4 are installed on Z direction frame 303, lower end surface of Y direction sliding seat 401 is rotatably connected with clamping module 5.

[0037] Further, as shown in Figure 3 And 4 Y direction module 4 includes Y direction sliding seat 401 and Y direction guide rod 403 installed on the inner wall of both sides of Z direction frame 303, Y direction sliding seat 401 is provided with Y direction sliding block 4011 connected with Y direction guide rod 403, both ends of Z direction frame 303 are further provided with second cylinder 402, upper end surface of Y direction sliding seat 401 is provided with fixed block 4012 connected with one end of corresponding second cylinder 402. Further, Y direction sliding seat 401 can be driven to move freely along Y direction by using second cylinder 402 on both sides of Z direction frame 303, so as to adjust the distance between two clamping modules 5, thereby adapting to profiles 9 of different lengths.

[0038] As shown in Figure 2As shown, the clamping module 5 contains a clamping jaw 501 connected with the Y-direction slide 401 and a rotating connection head 502 for rotatingly connecting the clamping jaw 501 with the bottom end of the Y-direction slide 401. Specifically, the clamping jaw 501 includes a housing 5011, the lower end of the housing 5011 has a first clamping block 5012 and a second clamping block 5013, the first clamping block 5012 is fixedly connected with the housing 5011, the lower end of the housing 5011 is provided with an opening, one end of the second clamping block 5013 extends into the opening and is connected with the housing 5011 in a sliding manner, a lead screw 5014 is further installed in the housing 5011, the portion of the second clamping block 5013 extending into the housing 5011 is provided with a threaded groove matched with the lead screw 5014, one end of the lead screw 5014 is further connected with a second motor 5015 in a power manner, and the first clamping block 5012 and the second clamping block 5013 are used for clamping the profile 9. The second motor 5015 is used to drive the lead screw 5014 to rotate, so that the second clamping block 5013 slides along the opening at the lower end of the housing 5011, so that the first clamping block 5012 and the second clamping block 5013 clamp or release the profile 9, and different specifications of the profile 9 can be adapted.

[0039] As shown in Figure 5 and 6 , the stretch-bending module 6 includes a base 601, one side of the top of the base 601 is protruded and a sliding groove 6011 is formed on the protrusion in the Y direction, third air cylinders 602 are slidingly arranged on both sides of the sliding groove 6011, one end of each of the third air cylinders 602 is connected with a push jaw 603, fourth air cylinders 604 are arranged on both sides of the protrusion of the base 601, one end of each of the fourth air cylinders 604 extends into the sliding groove 6011 and is connected with a corresponding third air cylinder 602, a receiving cavity 6012 is formed on the side of the top of the base 601 away from the protrusion, a core mold 608 is installed in the receiving cavity 6012, as shown in Figure 7 , the core mold 608 of the embodiment includes a core column 6082 and a box body 6081 for accommodating the core column 6082, an electromagnetic chuck 607 is arranged above the box body 6081, and a baffle 10 with a curved side is further arranged on the opening at the top of the box body 6081, the baffle 10 can be cut according to the curve required by the customer in advance, and the cut baffle can be placed as shown in Figure 9 , the side with the curve of the baffle 10 is used to shield part of the core column 6082, and then when the electromagnetic chuck 607 is powered, the electromagnetic chuck 607 will attract the core column 6082 close to the side with the curve and not shielded by the baffle 10, this part of the core column 6082 attracted forms a stretch-bending die that can be used for processing the profile 9, and the die has the curve required by the customer, and when the push jaw 603 pushes the profile 9 against the die, the stretch-bending forming of the profile 9 is completed.

[0040] Furthermore, the baffle 10 is installed in the receiving cavity 6012. It can be seen that the base 601 has insertion holes 6013 on both side walls along the X direction, and the insertion holes 6013 are into which the pins 12 are inserted. The baffle 10 has slots on both sides that are adapted to the pins 12. After the baffle 10 is installed, it can be fixed on the opening of the receiving cavity 6012 by the cooperation of the pins 12, the insertion holes 6013 and the slots. When the electromagnetic chuck 607 is not powered, the baffle 10 is located above the core post 6082 and partially blocks the core post 6082. Furthermore, the electromagnetic chuck 607 is connected to the side wall of the base 601 by an adjustable bracket. The adjustable bracket is used to adjust the relative position of the electromagnetic chuck 607 and the core mold 608 so that the electromagnetic chuck 607 is directly above the core mold 608.

[0041] like Figure 7 As shown, the core pillars 6082 are evenly distributed on the XY plane, and each core pillar 6082 can slide along the Z direction. When the electromagnetic chuck 607 is not energized, the core pillars 6082 fall into the housing 6081 under the action of gravity, as shown. Figure 6 As shown in Figure 8, a channel 13 is left between the electromagnetic chuck 607 and the baffle 10. The bending module 6 also includes a pusher 603 that is slidably arranged along the Y direction. The pusher 603 pushes the profile 9 into the channel 13 and presses the profile 9 onto the core column 6082 after it is lifted to bend and form it.

[0042] During operation, the feeding conveyor belt 7 first transports the profile 9 to be bent to the bottom of the gantry frame 1, where it is clamped by the clamping module 5. The clamping module 5 moves in the X direction to the bending module 6 via the X-axis module 2, and feeds the profile 9 into the bending module 6. The bending module 6 contains a mandrel 608 with a preset curved baffle 10. When the bending module 6 drives the pusher 603 to enter below the profile 9 via the third cylinder 602 and the fourth cylinder 604 at the bottom, the electromagnetic chuck 607 is energized and attracts the mandrel 6082 at the preset position. At this time, the pusher 603 presses the profile 9 to complete the bending operation.

[0043] In addition, in order to ensure the forming quality of profile 9, such as Figure 8 As shown in Figure 9, a steel sheet 11 can be placed in channel 13. The steel sheet 11 is on the YZ plane, that is, the steel sheet 11 is parallel to the side of the profile 9. When the pusher 603 pushes the profile 9 to bend and form, one side of the steel sheet 11 abuts against the core column 6082 after being sucked up, and the other side abuts against the profile 9. The steel sheet 11 deforms under pressure, but the surface abutting against the profile 9 is still flat and smooth. Therefore, direct contact between the profile 9 and the core column 6082 during the bending and forming process is avoided to prevent the profile 9 from generating texture, thus ensuring the bending and forming quality of the profile 9.

[0044] In this embodiment, the adjustable bracket has a movable arm 605 forming an L-shaped structure and a first support plate 606, as shown below.Figure 5 and 6 As shown in

[0045] As shown in Figure 11 the second embodiment of the present application is a device for the stretch bending forming of metal profiles for luggage racks, which differs from the first embodiment in that the adjustable support comprises a mobile arm 605 and a second support plate 6061, wherein the second support plate 6061 is L-shaped, and the horizontal end face of the second support plate 6061 is used to mount the electromagnetic chuck 607, and the horizontal part of the second support plate 6061 is connected to the mobile arm 605 in the Z direction. Figure 12 As shown in

[0046] As shown in Figures 13 to 15 the third embodiment of the present application is a device for the stretch bending forming of metal profiles for luggage racks, which differs from the first or second embodiment in that, as shown in Figure 15 and in combination with Figure 13 and 14 the rotating joint 502 of the present embodiment comprises a coaxially rotating first rotating block 5021 and a second rotating block 5023, and as shown in Figure 15As shown, for any corresponding Y-direction module 4 and clamping module 5, the first rotating block 5021 is fixedly connected with the bottom end of the Y-direction slide 401 in the Y-direction module 4, and the second rotating block 5023 is fixedly connected with the top end of the shell 5011 of the clamping jaw 501 in the clamping module 5. The side wall of the first rotating block 5021 is fixedly connected with a first connecting piece 5022, and the side wall of the second rotating block 5023 is fixedly connected with a second connecting piece 5024. The first connecting piece 5022 and the second connecting piece 5024 are arranged close to each other, and a spring 5025 is arranged between the first connecting piece 5022 and the second connecting piece 5024. When the first rotating block 5021 and the second rotating block 5023 are angularly dislocated, the spring 5025 can restore the first rotating block 5021 and the second rotating block 5023 to the initial state.

[0047] Further, when the profile 9 is drawn and bent on the draw-bending module 6, the two ends of the profile 9 will inevitably be angularly deflected due to extrusion. The rotating connecting head 502 allows the clamping jaw 501 in the clamping module 5 to be angularly deflected. After the clamping jaw 501 places the profile 9 drawn and bent on the blank conveying belt 8, the clamping jaw 501 that needs to be deflected returns to the initial state, i.e., the state without deflection, so that the clamping jaw 501 can clamp the next profile 9. Therefore, the rotating connecting head 502 in the embodiment plays a role of angular reset.

[0048] In the above embodiment, the cross section of the core column 6082 can be a regular hexagon, a regular octagon or a circle, as shown in Figure 9 In the first embodiment, the core column 6082 has a circular cross section, and the core columns 6082 in the box body 6081 are arranged in a honeycomb shape. The honeycomb arrangement can ensure that the core columns 6082 are more closely fitted, so that the surface of the core column 6082 that is sucked up and abuts against the profile 9 conforms to the radian of the set curve better. In order to obtain better accuracy, the diameter of the core column 6082 can be reduced. Therefore, the diameter of the core column 6082 is generally 5 to 10 mm, so that the curve formed by the core column 6082 has good accuracy.

[0049] Finally, it should be noted that the above is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or equivalently replace some technical features thereof, as long as the modifications, equivalent replacements or improvements are within the spirit and principles of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A device for the stretch-draw forming of luggage rack metal profiles, comprising a gantry (1) and a stretch-draw module (6), said gantry (1) being provided with an X-module (2), said X-module (2) being connected to a Z-module (3), characterized in that, The Z direction module (3) is rotationally connected with a clamping module (5), the clamping module (5) clamps a profile (9) along the Y direction and sends the profile (9) into a stretch-bending module (6); the stretch-bending module (6) comprises electromagnetic suction cups (607) and core columns (6082), the electromagnetic suction cups (607) are arranged above the core columns (6082), the core columns (6082) are densely arranged on the XY plane and each core column (6082) is arranged in a sliding manner along the Z direction, the upper portions of some of the core columns (6082) are further provided with baffle plates (10), one side of the baffle plate (10) is cut in a curve, a passage (13) is left between the electromagnetic suction cup (607) and the baffle plate (10), when the electromagnetic suction cup (607) is powered, the core columns (6082) close to the side of the curve and not blocked by the baffle plate (10) are attracted, the stretch-bending module (6) further comprises push claws (603) arranged in a sliding manner along the Y direction, the push claws (603) push the profile (9) into the passage (13) and press the profile (9) on the core columns (6082) after being attracted to stretch-bend and form; When the electromagnetic suction cup (607) is not powered, the baffle plate (10) is located above the core columns (6082) and blocks part of the core columns (6082); the core columns (6082) are arranged in a honeycomb shape; The stretch-bending module (6) comprises a base (601), one side of the top of the base (601) is protruded and a sliding groove (6011) is formed in the Y direction on the protrusion, third air cylinders (602) are slidingly arranged on both sides of the sliding groove (6011), one end of the third air cylinder (602) is connected with the push claw (603), fourth air cylinders (604) are arranged on both sides of the protrusion of the base (601), one end of the fourth air cylinder (604) extends into the sliding groove (6011) and is connected with the corresponding third air cylinder (602), a receiving cavity (6012) is formed on the side of the top of the base (601) away from the protrusion, a core mold (608) is installed in the receiving cavity (6012), the core mold (608) comprises a box (6081) for accommodating the core columns (6082), the baffle plate (10) is installed at the receiving cavity (6012), the electromagnetic suction cup (607) is connected with the side wall of the base (601) through an adjustable support, the adjustable support is used for adjusting the relative position of the electromagnetic suction cup (607) and the core mold (608) so that the electromagnetic suction cup (607) is directly above the core mold (608); Insert holes (6013) are formed in the X direction side walls of the base (601), the insert holes (6013) are inserted with bolts (12), insert grooves matched with the bolts (12) are formed in both sides of the baffle plate (10).

2. A device for stretch forming a luggage rack metal profile according to claim 1, characterized in that: The adjustable support includes a moving arm (605) and a first support plate (606) which constitute an L-shaped structure, the electromagnetic chuck (607) is installed on the upper end face of the first support plate (606), one end of the first support plate (606) is connected with the top end of the moving arm (605), the base (601) is fixedly connected with the fifth cylinder (609) near the middle part of one side wall of the mandrel (608), the first guide rod (610) is arranged around the side wall where the fifth cylinder (609) is located and slides along the X direction, and one end of the fifth cylinder (609) and the first guide rod (610) is fixedly connected with the moving arm (605).

3. A device for stretch forming a luggage rack metal profile according to claim 1, characterized in that: The adjustable support includes a moving arm (605) and a second support plate (6061), the second support plate (6061) is an L-shaped structure, the horizontal end face of the second support plate (6061) is used for installing the electromagnetic chuck (607), the horizontal part of the second support plate (6061) is connected with the moving arm (605) and slides along the Z direction, the top end of the moving arm (605) is embedded with the sixth cylinder (611), the moving arm (605) is provided with the second guide rod (612) on both sides of the sixth cylinder (611) and slides along the Z direction, the top end of the sixth cylinder (611) and the second guide rod (612) is fixedly connected with the second support plate (6061), the base (601) is fixedly connected with the fifth cylinder (609) near the middle part of one side wall of the mandrel (608), the first guide rod (610) is arranged around the side wall where the fifth cylinder (609) is located and slides along the X direction, and one end of the fifth cylinder (609) and the first guide rod (610) is fixedly connected with the moving arm (605).

4. A device for stretch forming a luggage rack metal profile according to claim 2 or 3, characterized in that: The drawing and bending module (6) is provided with an upper feeding conveyor (7) and a lower feeding conveyor (8) on both sides along the X direction, and is provided with a portal frame (1) on both sides along the Y direction, the X direction module (2) comprises an X direction cross beam (201) connected with the portal frame (1), the X direction cross beam (201) is slidably connected with an X direction support (203), an X direction rack (202) is installed on the X direction cross beam (201) on one side along the X direction, a first motor (204) is installed on the X direction support (203) close to the X direction rack (202), one end of the first motor (204) is connected with a driving gear engaged with the X direction rack (202), the Z direction module (3) comprises a Y direction cross beam (301) connected with the X direction supports (203) on both sides, a Z direction frame (303) is arranged below the Y direction cross beam (301), first air cylinders (302) are installed on both sides of the top end of the Y direction cross beam (301), one end of the first air cylinder (302) is connected with the Z direction frame (303) below, two groups of Y direction modules (4) are installed on the Z direction frame (303), the Y direction module (4) comprises a Y direction sliding seat (401) and a Y direction guide rod (403) installed on the inner walls of the Z direction frame (303) on both sides, a Y direction sliding block (4011) connected with the Y direction guide rod (403) is arranged on the Y direction sliding seat (401), second air cylinders (402) are further installed on both ends of the Z direction frame (303), fixed blocks (4012) connected with one end of the corresponding second air cylinders (402) are arranged on the upper end surfaces of the Y direction sliding seats (401), and the Y direction sliding seats (401) are rotatably connected with the clamping modules (5) on the lower end surfaces.

5. A device for stretch forming a luggage rack metal profile according to claim 4, characterized in that: The clamping module (5) comprises a clamping jaw (501) connected with the Y direction sliding seat (401), the clamping jaw (501) comprises an outer shell (5011), the lower end of the outer shell (5011) is provided with a first clamping block (5012) and a second clamping block (5013), the first clamping block (5012) is fixedly connected with the outer shell (5011), the lower end of the outer shell (5011) is provided with an opening, one end of the second clamping block (5013) extends into the opening and is slidably connected with the outer shell (5011), a lead screw (5014) is further installed in the outer shell (5011), a threaded groove matched with the lead screw (5014) is arranged on the part of the second clamping block (5013) extending into the outer shell (5011), one end of the outer shell (5011) is further provided with a second motor (5015) in power connection with one end of the lead screw (5014), and the first clamping block (5012) and the second clamping block (5013) are used for clamping the profiled material (9).

6. A device for stretch forming a luggage rack metal profile according to claim 5, characterized in that: The clamping module (5) further comprises a rotating joint (502) for connecting the Y-direction sliding seat (401) and the clamping jaw (501), the rotating joint (502) comprises coaxially rotating connected first and second rotating blocks (5021 and 5023), a first connecting plate (5022) is fixedly connected to the side wall of the first rotating block (5021), a second connecting plate (5024) is fixedly connected to the side wall of the second rotating block (5023), the first connecting plate (5022) and the second connecting plate (5024) are arranged close to each other, and a spring (5025) is arranged between the first connecting plate (5022) and the second connecting plate (5024).

7. A device for stretch forming a luggage rack metal profile according to claim 6, characterized in that: The core column (6082) has a cross section in the shape of a regular hexagon, a regular octagon or a circle.

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