Forging forming device for aluminum profile machining

Abstract

The invention discloses a forging forming device for aluminum profile machining, and belongs to the technical field of aluminum profile forging forming, the forging forming device comprises a forging rack vertically and fixedly mounted in a plant, a hydraulic mechanism and a hydraulic cylinder are fixedly mounted at the top of the forging rack, and a movable forging seat is fixedly mounted at the output end of the hydraulic cylinder; a movable forging seat is arranged on the upper portion of the forging machine frame, a forging upper die is arranged on the movable forging seat, a forging lower die is fixedly arranged on the lower portion of the forging machine frame, a guide rail is further fixedly arranged on the lower portion of the forging machine frame, a sliding block is arranged on the guide rail in a sliding mode, and a transmission part for controlling sliding adjustment of the sliding block is connected between the movable forging seat and the sliding block. And a demolding part is arranged on the forging lower mold. According to the forging forming device for aluminum profile machining, automatic adjustment of air pressure between the mold and the profile can be achieved through power of the hydraulic driving structure, convenient auxiliary demolding is achieved through air pressure change, the situation that the profile is damaged in the demolding process is avoided, and the forging precision is effectively improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of aluminum profile forging forming, in particular to a forging forming device for aluminum profile machining. BACKGROUND

[0002] In the field of aerospace manufacturing, a large number of aluminum profile forgings are needed, in order to ensure the comprehensive use performance and processing performance of the aluminum profile, a forging forming device is used to integrally form the profile blank by forging.

[0003] The prior art (Chinese patent with publication number CN119346777A and publication date January 24, 2025) discloses a forging device for precision forging production and machining, which comprises a base, a stamping assembly, a jacking structure, a pushing structure and a force applying structure; the base is rectangular, the stamping assembly is fixedly arranged on the upper wall of the right end of the base, the jacking structure is fixedly arranged on the upper wall of the right end of the base and located below the stamping assembly, the device has the advantages of reducing labor input, avoiding the influence of human factors, reducing operation risk, shortening demolding time and improving production efficiency; this scheme of demolding by means of existing equipment stamping movement does not need to arrange workers specially for demolding operation, thereby reducing labor input in the demolding link and avoiding scratching of the forgings or damage to the mold and reducing safety risk in the production process, and has strong applicability. The prior art (Chinese patent with publication number CN117245048B and publication date December 19, 2023) discloses an aircraft dial holder pre-forging forming device and forming method, and belongs to the technical field of aircraft manufacturing. The forming device comprises a workbench, a hydraulic cylinder arranged on the workbench, a mold assembly arranged inside the workbench, and a demolding assembly. The workbench is provided with guide rods on both sides, and a lifting seat is clamped between the two guide rods. The output end of the hydraulic cylinder is provided with a stamping head. The mold assembly comprises an upper die arranged on the lifting seat and a lower die arranged in the workbench. The demolding assembly comprises electric push rods arranged on both sides of the workbench and clamping heads arranged at the end close to each other of the two electric push rods. The clamping heads are clamped with clamping rollers. The device structure is reasonable in design, effectively avoids the folding defects of the forged parts, prolongs the service life of the mold, and is suitable for popularization and use.

[0004] Although the existing forging forming device can use the power of the hydraulic system to assist in demolding, the demolding structure of the device mostly adopts a rigid structure and a profile for contact limiting to achieve the demolding effect. However, the direct rigid structure contact method is easy to cause scratches and deformation on the surface of the formed profile, thereby affecting the precision and quality of the formed aluminum profile, and there are certain use defects. SUMMARY

[0005] The present application aims to provide a forging forming device for aluminum profile processing to solve the problem that the current market forging forming device adopts rigid structure and profile contact limiting to achieve demolding effect, and the direct rigid structure contact mode is easy to cause scratches and deformation on the surface of the formed profile, thereby affecting the precision and quality of the formed aluminum profile.

[0006] To achieve the above object, the present application provides the following technical scheme: a forging forming device for aluminum profile processing, comprising a vertical fixedly installed forging rack in a factory building, a hydraulic mechanism and a hydraulic cylinder are fixedly installed on the top of the forging rack, an output end of the hydraulic cylinder is fixedly installed with a movable forging seat, a forging upper die is installed on the movable forging seat, and a forging lower die is fixedly installed on the lower part of the forging rack.

[0007] The lower part of the forging rack is also fixedly installed with a guide rail, a sliding block is slidingly installed on the guide rail, a transmission component for controlling the sliding adjustment of the sliding block is connected between the movable forging seat and the sliding block, a demolding component for achieving auxiliary demolding through air pressure is arranged on the forging lower die, and the demolding component comprises a negative pressure cylinder fixedly installed on the lower surface of the forging lower die, and an air pressure adjusting component driven by the sliding block is arranged on the inner side of the negative pressure cylinder.

[0008] Preferably, the hydraulic mechanism and the hydraulic cylinder are connected through an oil delivery pipeline, a guide sleeve is fixedly installed on the outer side of the movable forging seat, a first guide rod is vertically fixedly installed on the forging rack, and the guide sleeve slides up and down along the first guide rod during the downward movement of the movable forging seat to realize guiding.

[0009] Preferably, a second guide rod is fixedly installed on the upper end of the forging upper die, the second guide rod penetrates the movable forging seat and rises and falls, and a buffer spring is fixedly connected between the movable forging seat and the forging upper die.

[0010] Preferably, the transmission component comprises a bracket fixedly installed on the guide rail, an incomplete gear is rotatably installed on the bracket, a transmission winding wheel is also elastically rotatably installed on the bracket, the shaft portions of the transmission winding wheel and the incomplete gear are coaxially arranged, the shaft portion of the incomplete gear and the transmission winding wheel are rotatably connected through a one-way bearing, a first traction cable is wound on the outer side of the transmission winding wheel, the upper end of the first traction cable is fixedly installed on the outer side of the movable forging seat, the transmission winding wheel and the incomplete gear are synchronously rotated by the first traction cable during the upward movement of the movable forging seat, and the transmission winding wheel elastically rotates to reset to realize the winding of the first traction cable during the downward movement of the movable forging seat.

[0011] Preferably, the transmission component further comprises a rack fixedly installed on the upper surface of the sliding block, the rack and the incomplete gear are meshingly connected, and a spring is fixedly connected between the sliding block and the guide rail.

[0012] Preferably, the intermediate position of the forging lower die is provided with a through hole structure, and the through hole structure and the negative pressure cylinder are connected in communication, and the inner diameters of the through hole structure and the negative pressure cylinder are the same and coaxially sealed, and a movable module is arranged in the through hole structure, and the lower end of the movable module is fixedly connected with a contact push rod, and the upper surface of the movable module is flush with the surface of the forging lower die.

[0013] Preferably, the air pressure adjusting part comprises a sealing rubber block fixedly installed on the lower surface of the movable module, and the sealing rubber block is in interference sliding fit on the inner wall of the negative pressure cylinder, and a first return spring is fixedly connected between the sealing rubber block and the negative pressure cylinder, and a second traction cable is fixedly connected between the sealing rubber block and the sliding block, and a negative pressure is generated between the forging lower die and the formed product during the downward movement of the sealing rubber block.

[0014] Preferably, the intermediate position of the movable module is provided with a stepped through hole, and a sealing module is elastically connected in the stepped through hole through a second return spring, and the upper end surface of the sealing module is flush with the upper end surface of the movable module, the lower end of the movable module is fixedly connected with a lifting rod, the inner side of the lifting rod is provided with a through hole, and the through hole and the stepped through hole are in communication, and a contact push rod is also fixedly installed on the forging rack, and the contact push rod and the through hole of the lifting rod are in sliding fit, and during the downward movement of the movable module, the contact push rod pushes the sealing module to slide upward and opens the stepped through hole on the movable module.

[0015] Preferably, the upper end of the contact push rod is in a circular truncated cone structure, and a gas inlet is formed in the contact push rod, and when the stepped through hole on the movable module is opened, the negative pressure cylinder performs air extraction through the through hole on the lifting rod and the gas inlet, and when the movable module is reset, the air pressure between the forging lower die and the formed product is increased, thereby achieving auxiliary demolding.

[0016] Compared with the prior art, the beneficial effects of the present application are that the forging forming device for aluminum profile processing can automatically adjust the air pressure between the mold and the profile through the power of the hydraulic driving structure, and can achieve convenient auxiliary demolding through air pressure change, thereby avoiding damage to the profile during demolding, effectively improving the forging precision, and the specific contents are as follows. 1. The hydraulic cylinder, movable forging seat, forging upper die and forging lower die are provided, the control hydraulic mechanism drives the hydraulic cylinder to work, the movable forging seat and the forging upper die are driven to move downward synchronously, the forging upper die contacts the blank and then buffers, and with the continuous downward movement of the movable forging seat, the forging upper die and the forging lower die perform forging forming on the aluminum profile. 2. Equipped with transmission components and demolding components, when forging is completed, the control hydraulic cylinder drives the movable forging seat to move upward. At this time, the movable forging seat will pull the transmission winding wheel to rotate through the first traction cable, so that the transmission winding wheel drives the incomplete gear to rotate synchronously through the one-way bearing. At this time, the incomplete gear will drive the rack and slider to slide along the guide rail through meshing, so that the slider will pull the movable module and sealing block downward through the second traction cable, thereby generating negative pressure inside the negative pressure cylinder, thereby reducing the air pressure between the lower forging die and the aluminum profile, thus preventing the aluminum profile from getting stuck on the outside of the upper forging die. The use of air pressure can make the aluminum profile more evenly stressed, avoiding deformation and scratches caused by single-point stress, and ensuring forming accuracy. 3. The device is equipped with an incomplete gear, rack, and push rod. As the movable module and lifting rod continue to move downward, the top of the push rod will contact and push the sealing module upward, connecting the through hole in the lifting rod with the negative pressure cylinder. At this time, the negative pressure cylinder can draw in outside air through the through hole and air outlet, restoring the internal air pressure of the negative pressure cylinder to normal. When the incomplete gear and rack disengage, the movable module will elastically reset and move upward, while the sealing module will reset synchronously, sealing the through hole on the lifting rod. At this time, the gas inside the negative pressure cylinder will be compressed, increasing the air pressure between the forging die and the aluminum profile, thereby causing the aluminum profile to separate and demold from the forging die. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the view and structure of the present invention; Figure 2 This is a schematic diagram of the installation structure of the upper and lower forging dies of the present invention; Figure 3 This is a schematic diagram of the connection structure between the upper and lower forging dies of the present invention; Figure 4 This is a schematic cross-sectional view of the upper and lower forging dies of the present invention. Figure 5 This is a schematic diagram of the incomplete gear and rack mounting structure of the present invention; Figure 6 This is a schematic diagram of the incomplete gear and transmission winding wheel connection structure of the present invention; Figure 7 This is a schematic diagram of the installation structure of the lifting rod and movable module of the present invention; Figure 8 This is a cross-sectional view of the lifting rod and movable module of the present invention; Figure 9 This is a schematic diagram showing the disassembled structure of the active module, sealing block, and abutment push rod of the present invention.

[0018] Fig. 1, forging frame; 2, hydraulic mechanism; 3, hydraulic cylinder; 4, movable forging seat; 5, first guide rod; 6, guide sleeve; 7, forging upper die; 8, second guide rod; 9, buffer spring; 10, forging lower die; 11, guide rail; 12, support; 13, incomplete gear; 14, transmission winding wheel; 15, first traction cable; 16, sliding block; 17, rack; 18, negative pressure cylinder; 19, lifting rod; 20, movable die; 21, sealing rubber block; 22, second traction cable; 23, first return spring; 24, abutting push rod; 25, sealing module; 26, second return spring; 27, gas inlet. DETAILED DESCRIPTION

[0019] 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 part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0020] Embodiment one: the existing forging forming device adopts rigid structure and profile to contact limit to achieve demolding effect, which is easy to cause scratches and deformation on the surface of the profile after forming, thereby affecting the precision and quality of the aluminum profile after forming. In order to solve this technical problem, the present embodiment discloses the following technical content, please refer to Figures 1-7 As shown in the figure; a forging forming device for aluminum profile processing, comprising a vertical fixedly installed forging frame 1 on the factory building, a hydraulic mechanism 2 and a hydraulic cylinder 3 are fixedly installed on the top of the forging frame 1, the output end of the hydraulic cylinder 3 is fixedly installed with a movable forging seat 4, and the movable forging seat 4 is installed with a forging upper die 7, a forging lower die 10 is fixedly installed on the lower part of the forging frame 1, a guide rail 11 is also fixedly installed on the lower part of the forging frame 1, a sliding block 16 is slidingly installed on the guide rail 11, and a transmission component for controlling the sliding adjustment of the sliding block 16 is connected between the movable forging seat 4 and the sliding block 16, a demolding component for auxiliary demolding by air pressure is arranged on the forging lower die 10, and the demolding component comprises a negative pressure cylinder 18 fixedly installed on the lower surface of the forging lower die 10, and an air pressure adjusting component driven by the sliding block 16 is arranged on the inner side of the negative pressure cylinder 18.

[0021] The hydraulic mechanism 2 and the hydraulic cylinder 3 are connected through an oil delivery pipeline, the outer side of the movable forging seat 4 is fixedly installed with a guide sleeve 6, the first guide rod 5 is vertically fixedly installed on the forging frame 1, and the guide sleeve 6 slides up and down along the first guide rod 5 during the downward movement of the movable forging seat 4, so as to realize the guiding, the upper end of the forging upper die 7 is fixedly installed with the second guide rod 8, the second guide rod 8 penetrates through the movable forging seat 4 during the lifting, and the buffer spring 9 is fixedly connected between the movable forging seat 4 and the forging upper die 7.

[0022] AsFigures 1-4 As shown, the forged aluminum profile blank is placed above the forging lower die 10, the hydraulic mechanism 2 is controlled to drive the hydraulic cylinder 3, so that the output end of the hydraulic cylinder 3 drives the movable forging seat 4 to move downward, at this time the guide sleeve 6 slides along the first guide rod 5 to realize guiding, so that the forging lower die 10 moves downward to contact the blank, and as the movable forging seat 4 continues to move downward, it will be elastically adjusted by the second guide rod 8, the buffer spring 9 and the forging upper die 7, so as to achieve the buffering effect, and as the continuous pressing, the forging upper die 7 can cooperate with the forging lower die 10 to forge the blank into a shape.

[0023] The transmission component includes a support 12 fixedly installed on the guide rail 11, and an incomplete gear 13 is rotatably installed on the support 12, and a transmission winding wheel 14 is also elastically rotatably installed on the support 12, and the shaft parts of the transmission winding wheel 14 and the incomplete gear 13 are coaxially arranged, and the shaft part of the incomplete gear 13 and the transmission winding wheel 14 are rotatably connected through a one-way bearing, and the outer side of the transmission winding wheel 14 is wound with a first traction cable 15, the upper end of the first traction cable 15 is fixedly installed on the outer side of the movable forging seat 4, and the movable forging seat 4 is pulled to rotate the transmission winding wheel 14 and the incomplete gear 13 synchronously through the first traction cable 15 during the upward movement of the movable forging seat 4, and the transmission winding wheel 14 is elastically rotated to reset to realize the winding of the first traction cable 15 when the movable forging seat 4 moves downward, the transmission component further includes a rack 17 fixedly installed on the upper surface of the sliding block 16, and the rack 17 and the incomplete gear 13 are meshingly connected, and the spring is fixedly connected between the sliding block 16 and the guide rail 11, the middle position of the forging lower die 10 is provided with a through hole structure, and the through hole structure and the negative pressure cylinder 18 are communicated, and the inner diameters of the through hole structure and the negative pressure cylinder 18 are the same and coaxially and sealingly connected, and the movable module 20 is arranged in the through hole structure and is lifted and lowered, and the lower end of the movable module 20 is fixedly connected with the abutting push rod 24, and the upper surface of the movable module 20 is flush with the surface of the forging lower die 10, and the air pressure adjusting component includes a sealing rubber block 21 fixedly installed on the lower surface of the movable module 20, and the sealing rubber block 21 is in tight sliding fit with the inner wall of the negative pressure cylinder 18, and the first reset spring 23 is fixedly connected between the sealing rubber block 21 and the negative pressure cylinder 18, and the second traction cable 22 is fixedly connected between the sealing rubber block 21 and the sliding block 16, and the negative pressure is generated between the forging lower die 10 and the formed product during the downward movement of the sealing rubber block 21.

[0024] As Figures 4-8As shown, the control activity anvil 4 up, this time the activity anvil 4 will be through the first traction cable 15 pull transmission winding wheel 14 rotation, so that the transmission winding wheel 14 through the one-way bearing driven incomplete gear 13 synchronous rotation, so that the incomplete gear 13 through the meshing effect of rack 17 drive slider 16 in the inside of the guide rail 11 sliding, this time the slider 16 will be through the second traction cable 22 pull activity module 20, sealing rubber block 21 in the negative pressure cylinder 18 down, this time the negative pressure cylinder 18 inside the air pressure is reduced, so that the forging lower die 10 and aluminum profile between the negative pressure effect, the negative pressure force is less than the second reset spring 26 elastic force, to ensure that the inside of the negative pressure cylinder 18 remains sealed, with the continuous up of the activity anvil 4, it will drive the forging upper die 7 synchronous up, this time the aluminum profile can be under the action of negative pressure to avoid the outside of the forging upper die 7, realize the preliminary demoulding, when forging again, the activity anvil 4 down, transmission winding wheel 14 will be elastic rotation reset, so as to realize the winding of the first traction cable 15.

[0025] Example two: the technical content disclosed in this embodiment is further improved on the basis of the above embodiment one, the demoulding structure of the existing forging forming device is fixed, which cannot realize the multidirectional demoulding of aluminum profile. In order to further solve this technical problem, the technical content disclosed in this embodiment is as follows, as shown in the figure Figures 7-9 As shown; the forging lower die 10 is provided with a demoulding component for auxiliary demoulding through air pressure, and the demoulding component comprises a negative pressure cylinder 18 fixedly installed on the lower surface of the forging lower die 10, and the inside of the negative pressure cylinder 18 is provided with an air pressure adjusting component driven by the slider 16, the middle position of the activity module 20 is provided with a stepped through hole, and the stepped through hole is elastically connected with a sealing module 25 through the second reset spring 26, and the upper end surface of the sealing module 25 is flush with the upper end surface of the activity module 20, the activity module 20 is fixedly connected with a lifting rod 19 at the lower end, the inside of the lifting rod 19 is provided with a through hole, and the through hole is communicated with the stepped through hole, the forging rack 1 is further provided with a resisting push rod 24, and the resisting push rod 24 is in sliding fit with the through hole of the lifting rod 19, and the resisting push rod 24 pushes the sealing module 25 to slide upward and opens the stepped through hole on the activity module 20 during the downward movement of the activity module 20, the upper end of the resisting push rod 24 is provided in a circular truncated cone structure, and the resisting push rod 24 is provided with a gas inlet hole 27, and the negative pressure cylinder 18 performs air extraction through the through hole on the lifting rod 19 and the gas inlet hole 27 when the stepped through hole on the activity module 20 is opened, and the activity module 20 resets to increase the air pressure between the forging lower die 10 and the formed product, thereby achieving auxiliary demoulding.

[0026] With the continuous upward movement of the movable exercise seat 4, the second traction cable 22 pulls the lifting rod 19 and the movable module 20 to move downward synchronously, and when the top of the push rod 24 is contacted and pushes the sealing module 25 to move upward, the through hole in the lifting rod 19 and the inside of the negative pressure cylinder 18 are communicated, at this time, the negative pressure cylinder 18 can extract external air through the through hole and the gas inlet hole 27, so that the internal air pressure of the negative pressure cylinder 18 is restored, then, the incomplete gear 13 and the rack 17 are disengaged, so that the sliding block 16 is elastically reset under the action of the spring elastic force, at the same time, the sealing module 25 is synchronously reset, the through hole in the lifting rod 19 is blocked, with the upward reset of the movable module 20 and the sealing rubber block 21, the air inside the negative pressure cylinder 18 is compressed, so that the air pressure between the forging lower die 10 and the aluminum profile is increased, and then the forging lower die 10 and the aluminum profile are separated and demolded.

[0027] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0028] 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 recorded in the foregoing embodiments, or make equivalent replacements for part of the technical features, any modification, equivalent replacement, improvement, 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 forging forming device for aluminum profile processing, comprising a vertical fixedly installed forging rack (1) in a factory building, a hydraulic mechanism (2) and a hydraulic cylinder (3) being fixedly installed on the top of the forging rack (1), an output end of the hydraulic cylinder (3) being fixedly installed with a movable forging seat (4), and a forging upper die (7) being installed on the movable forging seat (4), and a forging lower die (10) being fixedly installed on the lower part of the forging rack (1). characterized in that The lower part of the forging rack (1) is also fixedly installed with a guide rail (11), the guide rail (11) is slidably installed with a sliding block (16), a transmission component for controlling sliding adjustment of the sliding block (16) being connected between the movable forging seat (4) and the sliding block (16), the forging lower die (10) is provided with a demolding component for achieving auxiliary demolding through air pressure, and the demolding component comprises a negative pressure cylinder (18) fixedly installed on the lower surface of the forging lower die (10), and the inner side of the negative pressure cylinder (18) is provided with an air pressure adjusting component driven by the sliding block (16).

2. A swage forming device for the processing of aluminium sections as claimed in claim 1, characterised in that: The hydraulic mechanism (2) and the hydraulic cylinder (3) are connected through an oil delivery pipeline, the outer side of the movable forging seat (4) is fixedly installed with a guide sleeve (6), a first guide rod (5) is vertically fixedly installed on the forging rack (1), and the guide sleeve (6) slides up and down along the first guide rod (5) during the downward movement of the movable forging seat (4), so as to realize guiding.

3. A swage forming device for the processing of aluminium sections as claimed in claim 1, characterised in that: The upper end of the forging upper die (7) is fixedly installed with a second guide rod (8), the second guide rod (8) penetrates through the movable forging seat (4) and slides up and down, and a buffer spring (9) is fixedly connected between the movable forging seat (4) and the forging upper die (7).

4. A swage forming device for the working of aluminium sections as claimed in claim 1, characterised in that: The transmission component comprises a bracket (12) fixedly installed on the guide rail (11), an incomplete gear (13) being rotatably installed on the bracket (12), and a transmission winding wheel (14) being elastically rotatably installed on the bracket (12), the shafts of the transmission winding wheel (14) and the incomplete gear (13) are coaxially arranged, the shaft of the incomplete gear (13) and the transmission winding wheel (14) are rotatably connected through a one-way bearing, the outer side of the transmission winding wheel (14) is wound with a first traction cable (15), the upper end of the first traction cable (15) is fixedly installed on the outer side of the movable forging seat (4), the transmission winding wheel (14) and the incomplete gear (13) are synchronously rotated by the first traction cable (15) during the upward movement of the movable forging seat (4), and the transmission winding wheel (14) is elastically rotated to reset to realize winding of the first traction cable (15) during the downward movement of the movable forging seat (4).

5. A swage forming device for the processing of aluminium sections as claimed in claim 1, characterised in that: The transmission component further comprises a rack (17) fixedly installed on the upper surface of the sliding block (16), the rack (17) and the incomplete gear (13) are meshingly connected, and a spring is fixedly connected between the sliding block (16) and the guide rail (11).

6. A swage forming device for the working of aluminium sections as claimed in claim 1, characterised in that: The middle position of the forging lower die (10) is provided with a through hole structure, and the through hole structure and the negative pressure cylinder (18) are connected in communication, and the inner diameters of the through hole structure and the negative pressure cylinder (18) are the same and coaxially sealed, and the movable module (20) is arranged in the through hole structure, and the lower end of the movable module (20) is fixedly connected with the abutting push rod (24), and the upper surface of the movable module (20) is flush with the surface of the forging lower die (10).

7. A swage forming device for the processing of aluminium sections as claimed in claim 6, characterised in that: The air pressure adjusting part comprises a sealing rubber block (21) fixedly installed on the lower surface of the movable module (20), and the sealing rubber block (21) is in interference sliding fit on the inner wall of the negative pressure cylinder (18), and the first reset spring (23) is fixedly connected between the sealing rubber block (21) and the negative pressure cylinder (18), and the second traction cable (22) is fixedly connected between the sealing rubber block (21) and the sliding block (16), and the negative pressure is generated between the forging lower die (10) and the formed product during the downward movement of the sealing rubber block (21).

8. A swage forming device for the machining of aluminium sections as claimed in claim 7, characterised in that: The middle position of the movable module (20) is provided with a stepped through hole, and the sealing module (25) is elastically connected in the stepped through hole through the second reset spring (26), and the upper end surface of the sealing module (25) is flush with the upper end surface of the movable module (20), the lower end of the movable module (20) is fixedly connected with the lifting rod (19), the inner side of the lifting rod (19) is provided with a through hole, and the through hole and the stepped through hole are connected in communication, the abutting push rod (24) is also fixedly installed on the forging rack (1), and the abutting push rod (24) and the through hole of the lifting rod (19) are in sliding fit, and the abutting push rod (24) pushes the sealing module (25) to slide upward and opens the stepped through hole on the movable module (20) during the downward movement of the movable module (20).

9. A swage forming device for the machining of aluminium sections as claimed in claim 8, characterised in that: The upper end of the abutting push rod (24) is in a circular truncated cone structure, the abutting push rod (24) is provided with a gas inlet hole (27), and the negative pressure cylinder (18) is exhausted through the through hole on the lifting rod (19) and the gas inlet hole (27) when the stepped through hole on the movable module (20) is opened, and the air pressure between the forging lower die (10) and the formed product is increased when the movable module (20) is reset, thereby assisting the demolding.

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