A door sill middle section forming mold and its forming method

Abstract

The invention discloses a threshold middle section forming die and a forming method thereof; it relates to the technical field of threshold middle section forming die, comprising a base, support blocks are longitudinally fixedly connected to both sides of the bottom surface of the base, inverted L-shaped blocks are fixedly connected to the rear ends of the support blocks on both sides, a fixing component and a stamping component are arranged at the upper end of the base, and a driving component is arranged at the front end of the base; the invention facilitates fixing of a metal plate by a fixing plate, which is convenient for subsequent blanking and stamping; facilitates moving the metal plate after blanking and stamping of the metal plate by a steel ball, which is convenient for the next blanking and stamping; facilitates fixing of both ends of the metal plate to be blanked by a pressing plate, facilitates stamping and forming of the metal plate by a stamping module and a stamping groove, facilitates adjustment of the position of the blanking module by a circular positioning plate, and facilitates control of the position of the mounting hole; pushes out the stamped metal plate by an electric push rod, a roller and a servo motor, which is convenient for subsequent stamping; the device completes multiple steps such as cutting, stamping and blanking, thereby improving work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of door sill middle section forming moulds, and in particular to a door sill middle section forming mould and a forming method thereof. Background Art

[0002] The molding of the threshold usually requires the use of a mold; in the traditional manual production period, the production of thresholds usually relies on the experience and skills of craftsmen; the existing threshold middle section molding is generally formed by a stamping module and a stamping groove to stamp the metal plate, but this method requires workers to cut a whole metal plate into multiple metal plates of equal size, and then put them into the stamping groove for stamping. Since the middle section of the threshold is stamped, it is also necessary to open holes on both sides of the metal plate for subsequent installation. The molding steps are numerous and the efficiency is low; therefore, it is necessary to improve and deal with the above problems. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a door sill middle section forming mold and a forming method thereof.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a threshold middle section forming mold, including a base, support blocks are longitudinally fixedly connected to the two sides of the bottom surface of the base, inverted L-shaped blocks are fixedly connected to the rear ends of the support blocks on both sides, a rectangular material guide groove is opened on the top surface of the base, and a material guide port is longitudinally opened in the middle of the top surface of the base, a stamping groove and a blanking port are arranged inside the material guide port, inverted L-shaped plates are transversely arranged at the front and rear ends of the base, the middle part of the inner side wall of the inverted L-shaped plates at the front and rear ends is fixedly connected to the upper end of the front and rear sides of the base, a fixing component and a stamping component are arranged on the upper end of the base, and a driving component is arranged at the front end of the base.

[0005] Preferably, the fixing assembly includes a fixing plate which is transversely arranged inside the front and rear end inverted L-shaped plates, a plurality of equidistant first guide rods are transversely fixedly connected to the top surface of the fixing plate, the first guide rods pass through the top surface of the inverted L-shaped plate, and the upper end of the first guide rod is fixedly connected to the baffle plate, a pressure spring is vertically sleeved on the outer side of the first guide rod, the upper and lower ends of the pressure spring are respectively fixedly connected to the top surface inside the inverted L-shaped plate and the top surface of the fixing plate, a plurality of equidistant movable grooves are transversely opened on the bottom surface of the fixing plate, and steel balls are rotatably connected in the movable grooves.

[0006] Preferably, the stamping assembly includes a hydraulic cylinder installed on the top surface of the front end of the inverted L-shaped block, the lower end of the hydraulic cylinder passes through the upper end of the front of the inverted L-shaped block, and an inverted U-shaped plate is fixedly connected to the bottom surface of the hydraulic cylinder, connecting plates are longitudinally fixedly connected on both sides of the inverted U-shaped plate, a pressure plate is provided at the lower end of the connecting plate, and a second guide rod is vertically fixedly connected to the top surfaces of the front and rear ends of the pressure plate, the upper end of the second guide rod passes through the connecting plate, and a retaining ring is fixed to the upper end of the second guide rod, a buffer spring is vertically sleeved on the outer side of the second guide rod, and both ends of the buffer spring are respectively fixed to the bottom surface of the connecting plate and the top surface of the pressure plate.

[0007] Preferably, a plurality of equidistant positioning columns are longitudinally fixed to the bottom surface of the connecting plate, an external thread line is provided on the outer side of the positioning columns, a rectangular chopping plate is provided at the lower end of the connecting plate, the rectangular chopping plate can fall into the rectangular material guide trough, rectangular positioning plates are longitudinally fixed to the two sides of the rectangular chopping plate, and the rectangular positioning plates are fixed to the positioning columns by nuts.

[0008] Preferably, punching modules are provided on both sides of the rectangular chopping plate, positioning grooves are provided in the middle of the adjacent surfaces of the left and right punching modules, circular positioning plates are clamped at the front and rear ends of the positioning grooves, and a blanking module is fixedly connected to the bottom surface of the circular positioning plate.

[0009] Preferably, a mounting opening is longitudinally opened in the middle of the front end of the inverted L-shaped plate, an electric push cylinder is installed in the middle of the inner side of the inverted L-shaped block, a push block is fixedly connected to the front end of the electric push cylinder, and the push block cooperates with the mounting opening.

[0010] Preferably, the driving assembly includes a large U-shaped positioning plate arranged on both sides of the front end of the base, a small U-shaped positioning plate is arranged inside the large U-shaped positioning plate, a reset spring is arranged between the small U-shaped positioning plate and the large U-shaped positioning plate, and both ends of the reset spring are respectively fixed to the outer bottom surface of the small U-shaped positioning plate and the inner bottom surface of the large U-shaped positioning plate, the inclinations of the large U-shaped positioning plate and the small U-shaped positioning plate are matched with the inclination of the inner wall of the material guide port, and the large U-shaped positioning plate and the small U-shaped positioning plate are movably connected.

[0011] Preferably, a roller is vertically provided inside the small U-shaped positioning plate, and the roller is rotatably connected to the inner wall of the small U-shaped positioning plate. A plurality of equidistant semicircular rubber strips are vertically fixed to the outer wall of the roller. A servo motor is fixed to the top surface of the right roller, and the bottom surface of the servo motor abuts against the outer wall of the large U-shaped positioning plate.

[0012] The present invention also provides a method for forming a sill middle section forming mold, comprising the following steps:

[0013] S1, first place the aluminum alloy plate on the lower end of the fixed plate, then the fixed plate rises, the first guide rod fixed to the upper end of the fixed plate rises, the baffle fixed to the upper end of the first guide rod is pushed upward, the pressure spring between the fixed plate and the inverted L-shaped plate is in a compressed state, the aluminum alloy plate is placed on the top of the base, and moves from left to right, the aluminum alloy plate is moved from left to right by the steel ball at the lower end of the fixed plate, and the aluminum alloy plate is pressed against the top surface of the base by the pressure spring, when the aluminum alloy plate covers the rectangular guide groove and guide port opened on the top surface of the base, the hydraulic cylinder is started;

[0014] S2, when the hydraulic cylinder is started, a hydraulic rod extends from the lower end of the hydraulic cylinder, and the inverted U-shaped plate is pushed downward by the hydraulic rod. At this time, the connecting plates fixed on both sides of the inverted U-shaped plate move downward, and the connecting plates and the pressure plate are connected by the buffer spring. When the connecting plate moves downward, the pressure plate also moves downward. When the bottom surface of the pressure plate contacts the aluminum alloy plate, the pressure plate no longer moves. When the connecting plate is still moving downward, the buffer spring between the connecting plate and the pressure plate is in a compressed state, and the retaining ring on the upper end of the connecting plate no longer abuts against the connecting plate. At this time, the pressure plate presses the aluminum alloy plate and fixes it;

[0015] S3, when the connecting plate continues to descend, the rectangular chopping plate fixed to the bottom surface of the connecting plate by nuts will continue to descend. When the bottom surface of the rectangular chopping plate contacts the aluminum alloy plate, the hydraulic cylinder continues to start, the connecting plate continues to descend, and the rectangular chopping plate moves downward to cut a rectangular plate from a whole piece of aluminum alloy plate; when the hydraulic cylinder continues to descend, the inverted U-shaped plate continues to descend, and the stamping module fixed to the bottom surface of the inverted U-shaped plate continues to descend, and the rectangular chopping plate falls into the rectangular material guide groove opened on the top surface of the base. When the stamping module continues to descend, the cut rectangular plate is stamped into the shape of a threshold, and the blanking module clamped between the stamping modules on both sides will open two mounting holes in the middle of the rectangular plate, and the waste material under the blanking will be discharged along the material guide opening opened on the top surface of the base;

[0016] S4, when the stamping and blanking are completed, the hydraulic cylinder is controlled to lift upward, so that the hydraulic rod moves upward, thereby controlling the inverted U-shaped plate to move upward. At this time, the stamping module and the blanking module move upward and separate from the stamping groove and the blanking port opened on the top surface of the base, and the rectangular chopping plate moves upward and separates from the rectangular guide groove opened on the top surface of the base. At this time, the buffer spring changes from a compressed state to a stretched state, and the second guide rod fixed to the top surface of the pressing plate moves upward. When the bottom surface of the retaining ring contacts the top surface of the connecting plate, it starts to rise; when the stamping assembly rises, the electric push cylinder is started;

[0017] S5, when the stamping assembly leaves the base, start the electric push cylinder, push the push block into the stamping slot through the electric push cylinder, and push the stamped aluminum alloy plate forward. At this time, the aluminum alloy plate in the stamping slot moves forward, and the front end of the aluminum alloy is clamped on the rollers on both sides. At this time, the reset spring is in a compressed state, and then start the servo motor on the right, and rotate the right roller counterclockwise through the servo motor. At this time, the left roller rotates clockwise, so that the stamped aluminum alloy plate is pulled out; then move the aluminum alloy plate on the base to the right, so that the uncut part covers the rectangular guide groove opened on the top surface of the base, and stamp again.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention facilitates fixing of the metal plate through the fixing plate, which is convenient for subsequent blanking and stamping; facilitates moving the metal plate after blanking and stamping through the steel ball, which is convenient for the next blanking and stamping; facilitates fixing of both ends of the metal plate to be blanked through the pressing plate, and facilitates cutting of the metal plate to the size required for stamping through the rectangular chopping plate; facilitates stamping of the metal plate through the stamping module and the stamping groove, and facilitates adjusting the position of the blanking module through the circular positioning plate, and facilitates controlling the position of the mounting hole; facilitates pushing out the stamped metal plate through the electric push cylinder; pushes out the stamped metal plate through the roller and the servo motor, which is convenient for subsequent stamping of the metal plate; the device completes multiple steps such as cutting, stamping and blanking, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the overall side-view stereoscopic structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the base of the present invention;

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the stamping assembly of the present invention;

[0024] Figure 5 It is a bottom-up three-dimensional structural schematic diagram of the stamping assembly of the present invention;

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the fixing assembly of the present invention;

[0026] Figure 7 For the present invention Figure 1 A schematic diagram of the enlarged structure of the middle A part;

[0027] Figure 8 For the present invention Figure 6 A schematic diagram of the structure of the middle B part;

[0028] Serial numbers in the figure: 1. base; 2. support block; 3. inverted L-shaped block; 4. inverted L-shaped plate; 5. fixed plate; 6. first guide rod; 7. pressure spring; 8. baffle plate; 9. steel ball; 10. hydraulic cylinder; 11. inverted U-shaped plate; 12. connecting plate; 13. pressure plate; 14. second guide rod; 15. buffer spring; 16. baffle ring; 17. rectangular chopping plate; 18. positioning column; 19. stamping module; 20. circular positioning plate; 21. blanking module; 22. push block; 23. electric push cylinder; 24. large U-shaped positioning plate; 25. small U-shaped positioning plate; 26. reset spring; 27. roller; 28. servo motor; 29. ​​rectangular guide trough; 30. guide port; 31. installation port; 32. stamping trough; 33. blanking port. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] See also Figures 1 to 8A threshold middle section forming mold comprises a base 1, through which an aluminum alloy plate is conveniently placed; support blocks 2 are longitudinally fixedly connected to both sides of the bottom surface of the base 1, and the support blocks 2 are convenient for supporting the base 1; inverted L-shaped blocks 3 are fixedly connected to the rear ends of the support blocks 2 on both sides, and the hydraulic cylinder 10 and the electric push cylinder 23 are conveniently installed through the inverted L-shaped blocks 3; and a rectangular material guide groove 29 and a longitudinal material guide port 30 are opened in the middle of the top surface of the base 1, and a stamping groove 32 and a blanking port 33 are arranged inside the material guide port 30, so that the aluminum alloy plate can be cut off conveniently through the rectangular material guide groove 29, the aluminum alloy plate can be formed conveniently through the stamping groove 32 on the top surface, and the aluminum alloy plate can be punched conveniently through the blanking port 33; inverted L-shaped plates 4 are horizontally arranged at the front and rear ends of the base 1, and the inverted L-shaped plates 4 are convenient for connecting the fixing components; the middle part of the inner side wall of the inverted L-shaped plates 4 at the front and rear ends is fixedly connected to the upper ends of the front and rear sides of the base 1, and a fixing component and a stamping component are arranged at the upper end of the base 1, and a driving component is arranged at the front end of the base 1; the fixing component The parts include a fixing plate 5 which is transversely arranged inside the front and rear end inverted L-shaped plates 4, and the fixing plate 5 is convenient for fixing the aluminum alloy plate on the base 1; a plurality of equidistant first guide rods 6 are transversely fixedly connected to the top surface of the fixing plate 5, and the first guide rods 6 are convenient for guiding the fixing plate 5 to prevent the fixing plate 5 from shifting in the up and down movement direction; the first guide rod 6 passes through the top surface of the inverted L-shaped plate 4, and the upper end of the first guide rod 6 is fixedly connected to the baffle 8, and the baffle 8 prevents the fixing plate 5 from falling off; a pressure spring 7 is vertically sleeved on the outer side of the first guide rod 6, and the pressure spring 7 is convenient for pushing the fixing plate 5 downward to fix the aluminum alloy plate; the upper and lower ends of the pressure spring 7 are respectively fixedly connected to the top surface of the inverted L-shaped plate 4 and the top surface of the fixing plate 5, and a plurality of equidistant movable grooves are transversely opened on the bottom surface of the fixing plate 5, and steel balls 9 are rotatably connected in the movable grooves, and the steel balls 9 facilitate the sliding of the aluminum alloy plate, so that when the stamping is completed, the aluminum alloy plate can be adjusted for stamping again.

[0031] In the present invention, the stamping assembly includes a hydraulic cylinder 10 installed on the top surface of the front end of the inverted L-shaped block 3, and the hydraulic cylinder 10 facilitates stamping and blanking; the lower end of the hydraulic cylinder 10 passes through the upper end of the front of the inverted L-shaped block 3, and an inverted U-shaped plate 11 is fixedly connected to the bottom surface of the hydraulic cylinder 10, and connecting plates 12 are longitudinally fixedly connected to both sides of the inverted U-shaped plate 11. A pressing plate 13 is provided at the lower end of the connecting plate 12, and the pressing plate 13 is used to fix the two ends of the aluminum alloy plate for subsequent cutting; the top surfaces of the front and rear ends of the pressing plate 13 are vertically fixed with a second guide rod 14, and the second guide rod 14 is used to control the moving direction of the pressing plate 13 to prevent the pressing plate 13 from disengaging from the moving direction; the upper end of the second guide rod 14 passes through the connecting plate 12, and a retaining ring 16 is fixedly connected to the upper end of the second guide rod 14, and the retaining ring 16 prevents the second guide rod 14 from disengaging from the connecting plate 12; a buffer spring 15 is vertically sleeved on the outer side of the second guide rod 14, and the buffer spring 15 prevents the pressing plate 13 from being damaged The two ends of the buffer spring 15 are respectively fixed to the bottom surface of the connecting plate 12 and the top surface of the pressure plate 13; the bottom surface of the connecting plate 12 is longitudinally fixed with a plurality of equidistant positioning posts 18, and the outer side of the positioning posts 18 is provided with external threads, which facilitate the connection of the nuts; the lower end of the connecting plate 12 is provided with a rectangular chopping plate 17, which can enter the rectangular material guide groove 29, and the rectangular chopping plate 17 is convenient for cutting a part of the aluminum alloy plate; rectangular positioning plates are longitudinally fixed on both sides of the rectangular chopping plate 17, and the rectangular positioning plates are fixed on the positioning posts 18 through nuts; stamping modules 19 are provided on both sides of the rectangular chopping plate 17, and the stamping modules 19 are convenient for stamping the cut aluminum alloy plate; positioning grooves are provided in the middle of the adjacent surfaces of the left and right end stamping modules 19, and circular positioning plates 20 are clamped in the front and rear ends of the positioning grooves, and the bottom surface of the circular positioning plate 20 is fixed with a blanking module 21, and the blanking module 21 is convenient for punching holes in the aluminum alloy plate.

[0032] In the present invention, an installation opening 31 is longitudinally opened in the middle of the front and rear ends of the inverted L-shaped plate 4, and an electric push cylinder 23 is installed in the inverted L-shaped block 3, which is convenient for controlling the moving direction and moving distance of the push block 22; a push block 22 is fixedly connected to the front end of the electric push cylinder 23, and the push block 22 is convenient for pushing out the stamped aluminum alloy plate; the push block 22 cooperates with the installation opening 31; the driving component includes a large U-shaped positioning plate 24 arranged on both sides of the front end of the base 1, and the large U-shaped positioning plate 24 is convenient for connecting part of the driving component, and a small U-shaped positioning plate 25 is arranged inside the large U-shaped positioning plate 24, and the small U-shaped positioning plate 25 is convenient for connecting the roller 27; a reset spring 26 is arranged between the small U-shaped positioning plate 25 and the large U-shaped positioning plate 24, and the reset spring 26 is convenient for the roller 27 to reset, so that the rollers 27 on both sides clamp the aluminum alloy Gold plate; both ends of the return spring 26 are respectively fixed to the outer bottom surface of the small U-shaped positioning plate 25 and the inner bottom surface of the large U-shaped positioning plate 24, the inclinations of the large U-shaped positioning plate 24 and the small U-shaped positioning plate 25 match the inclination of the inner wall of the guide port 30, and the large U-shaped positioning plate 24 and the small U-shaped positioning plate 25 are movably connected; a roller 27 is vertically arranged inside the small U-shaped positioning plate 25, and the roller 27 is used to facilitate the removal of the stamped aluminum alloy plate; the roller 27 is rotatably connected to the inner wall of the small U-shaped positioning plate 25, and a plurality of equidistant semicircular rubber strips are vertically fixed to the outer wall of the roller 27, and the semicircular rubber strips are used to facilitate the increase of the friction between the roller 27 and the aluminum alloy plate; a servo motor 28 is fixed to the top surface of the right roller 27, and the servo motor 28 is used to facilitate the driving of the roller 27; the bottom surface of the servo motor 28 abuts against the outer wall of the large U-shaped positioning plate 24.

[0033] Working principle: In this embodiment, the present invention also proposes a molding method for a threshold middle section molding mold, comprising the following steps:

[0034] Step 1: first, place the aluminum alloy plate on the lower end of the fixed plate 5. At this time, the fixed plate 5 rises, and the first guide rod 6 fixed to the upper end of the fixed plate 5 rises, and the baffle 8 fixed to the upper end of the first guide rod 6 is pushed upward. The pressure spring 7 between the fixed plate 5 and the inverted L-shaped plate 4 is in a compressed state. The aluminum alloy plate is placed on the top of the base 1 and moves from left to right. The steel ball 9 at the lower end of the fixed plate 5 moves the aluminum alloy plate from left to right. The pressure spring 7 makes the aluminum alloy plate close to the top surface of the base 1. When the aluminum alloy plate covers the rectangular guide groove 29 and the guide port 30 opened on the top surface of the base 1, the hydraulic cylinder 10 is started;

[0035] Step 2: When the hydraulic cylinder 10 is started, a hydraulic rod extends from the lower end of the hydraulic cylinder 10, and the inverted U-shaped plate 11 is pushed downward by the hydraulic rod. At this time, the connecting plates 12 fixed on both sides of the inverted U-shaped plate 11 move downward, and the connecting plates 12 and the pressing plates 13 are connected by the buffer springs 15. When the connecting plates 12 move downward, the pressing plates 13 also move downward. When the bottom surface of the pressing plates 13 contacts the aluminum alloy plate, the pressing plates 13 no longer move. When the connecting plates 12 are still moving downward, the buffer springs 15 between the connecting plates 12 and the pressing plates 13 are in a compressed state, and the retaining ring 16 at the upper end of the connecting plates 12 no longer abuts against the connecting plates 12. At this time, the pressing plates 13 press the aluminum alloy plates and fix them.

[0036] Step three, when the connecting plate 12 continues to descend, the rectangular chopping plate 17 fixed to the bottom surface of the connecting plate 12 by a nut will continue to descend. When the bottom surface of the rectangular chopping plate 17 contacts the aluminum alloy plate, the hydraulic cylinder 10 continues to start, the connecting plate 12 continues to descend, and the rectangular chopping plate 17 moves downward to cut a rectangular plate from a whole piece of aluminum alloy plate; when the hydraulic cylinder 10 continues to descend, the inverted U-shaped plate 11 continues to descend, and the stamping module 19 fixed to the bottom surface of the inverted U-shaped plate 11 continues to descend, and the rectangular chopping plate 17 falls into the rectangular guide groove 29 opened on the top surface of the base 1. When the stamping module 19 continues to descend, the cut rectangular plate is stamped into the shape of a door sill. The blanking module 21 clamped between the stamping modules 19 on both sides will open two mounting holes in the middle of the rectangular plate, and the waste material under the blanking will be discharged along the guide port 30 opened on the top surface of the base 1.

[0037] Step 4: When the punching and blanking are completed, the hydraulic cylinder 10 is controlled to lift upward, so that the hydraulic rod moves upward, thereby controlling the inverted U-shaped plate 11 to move upward. At this time, the punching module 19 and the blanking module 21 move upward and separate from the punching groove 32 and the blanking port 33 opened on the top surface of the base 1, and the rectangular chopping plate 17 moves upward and separates from the rectangular guide groove 29 opened on the top surface of the base 1. At this time, the buffer spring 15 changes from a compressed state to a stretched state, and the second guide rod 14 fixed to the top surface of the pressing plate 13 moves upward, and starts to rise when the bottom surface of the retaining ring 16 contacts the top surface of the connecting plate 12; when the punching assembly rises, the electric push cylinder 23 is started;

[0038] Step five, when the stamping assembly leaves the base 1, start the electric push cylinder 23, push the push block 22 into the stamping groove 32 through the electric push cylinder 23, and push the stamped aluminum alloy plate forward. At this time, the aluminum alloy plate in the stamping groove 32 moves forward, and the front end of the aluminum alloy is clamped on the rollers 27 on both sides. At this time, the reset spring 26 is in a compressed state, and then start the servo motor 28 on the right, and rotate the right roller 27 counterclockwise through the servo motor 28. At this time, the left roller 27 rotates clockwise, thereby pulling out the stamped aluminum alloy plate; then move the aluminum alloy plate on the base 1 to the right, so that the uncut part covers the rectangular material guide groove 29 starting from the top surface of the base 1, and stamp again.

[0039] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sill middle section forming mold, comprising a base (1), characterized in that: Support blocks (2) are longitudinally fixedly connected to both sides of the bottom surface of the base (1), and inverted L-shaped blocks (3) are fixedly connected to the rear ends of the support blocks (2) on both sides. A rectangular material guide groove (29) is opened on the top surface of the base (1), and a material guide opening (30) is longitudinally opened in the middle of the top surface of the base (1). A stamping groove (32) and a material drop opening (33) are arranged inside the material guide opening (30). Inverted L-shaped plates (4) are transversely arranged at the front and rear ends of the base (1), and the middle parts of the inner side walls of the inverted L-shaped plates (4) at the front and rear ends are fixedly connected to the upper ends of the front and rear ends of the base (1). The upper end of the base (1) is provided with a fixing assembly and a punching assembly, and the front end of the base (1) is provided with a driving assembly; the punching assembly comprises a hydraulic cylinder (10) mounted on the top surface of the front end of the inverted L-shaped block (3), the lower end of the hydraulic cylinder (10) passes through the front upper end of the inverted L-shaped block (3), and the bottom surface of the hydraulic cylinder (10) is fixedly connected to an inverted U-shaped plate (11), both sides of the inverted U-shaped plate (11) are longitudinally fixedly connected to connecting plates (12), the lower end of the connecting plate (12) is provided with a pressing plate (13), and the top surfaces of the front and rear ends of the pressing plate (13) are vertically fixedly connected to A second guide rod (14), the upper end of the second guide rod (14) passes through the connecting plate (12), and a retaining ring (16) is fixedly connected to the upper end of the second guide rod (14), a buffer spring (15) is vertically sleeved on the outer side of the second guide rod (14), and the two ends of the buffer spring (15) are respectively fixedly connected to the bottom surface of the connecting plate (12) and the top surface of the pressure plate (13); a plurality of equidistant positioning columns (18) are longitudinally fixedly connected to the bottom surface of the connecting plate (12), and the outer side of the positioning columns (18) is provided with an external thread line, and the lower end of the connecting plate (12) A rectangular chopping plate (17) is provided, and the rectangular chopping plate (17) can fall into the rectangular material guide groove (29). Rectangular positioning plates are longitudinally fixedly connected to the two sides of the rectangular chopping plate (17), and the rectangular positioning plates are fixedly connected to the positioning columns (18) through nuts. Punching modules (19) are provided on both sides of the rectangular chopping plate (17). Positioning grooves are opened in the middle of the adjacent surfaces of the left and right end punching modules (19). Circular positioning plates (20) are clamped in the positioning grooves at the front and rear ends, and a blanking module (21) is fixedly connected to the bottom surface of the circular positioning plate (20).

2. A sill middle section forming die according to claim 1, characterized in that: The fixing assembly comprises a fixing plate (5) which is transversely arranged inside the front and rear inverted L-shaped plates (4); a plurality of equidistant first guide rods (6) are transversely fixedly connected to the top surface of the fixing plate (5); the first guide rods (6) penetrate the top surface of the inverted L-shaped plate (4); the upper ends of the first guide rods (6) are fixedly connected to the baffle plate (8); a pressure spring (7) is vertically sleeved on the outer side of the first guide rod (6); the upper and lower ends of the pressure spring (7) are respectively fixedly connected to the inner top surface of the inverted L-shaped plate (4) and the top surface of the fixing plate (5); a plurality of equidistant movable grooves are transversely opened on the bottom surface of the fixing plate (5); steel balls (9) are rotatably connected in the movable grooves.

3. A sill middle section forming mold according to claim 1, characterized in that: A mounting opening (31) is longitudinally provided in the middle of the front and rear ends of the inverted L-shaped plate (4); an electric push cylinder (23) is installed in the middle of the inner side of the inverted L-shaped block (3); a push block (22) is fixedly connected to the front end of the electric push cylinder (23); and the push block (22) is matched with the mounting opening (31).

4. A sill middle section forming die according to claim 1, characterized in that: The driving assembly comprises a large U-shaped positioning plate (24) arranged on both sides of the front end of the base (1), a small U-shaped positioning plate (25) is arranged inside the large U-shaped positioning plate (24), a return spring (26) is arranged between the small U-shaped positioning plate (25) and the large U-shaped positioning plate (24), two ends of the return spring (26) are respectively fixed to the outer bottom surface of the small U-shaped positioning plate (25) and the inner bottom surface of the large U-shaped positioning plate (24), the inclination of the large U-shaped positioning plate (24) and the small U-shaped positioning plate (25) matches the inclination of the inner wall of the material guide port (30), and the large U-shaped positioning plate (24) and the small U-shaped positioning plate (25) are movably connected.

5. A sill middle section forming die according to claim 4, characterized in that: A roller (27) is vertically arranged inside the small U-shaped positioning plate (25), the roller (27) is rotatably connected to the inner wall of the small U-shaped positioning plate (25), a plurality of equally spaced semicircular rubber strips are vertically fixed to the outer wall of the roller (27), a servo motor (28) is fixed to the top surface of the right roller (27), and the bottom surface of the servo motor (28) abuts against the outer wall of the large U-shaped positioning plate (24).

6. A method for forming a sill middle section forming mold according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1, firstly, the aluminum alloy plate is placed on the lower end of the fixed plate (5), at which time the fixed plate (5) rises, the first guide rod (6) fixed to the upper end of the fixed plate (5) rises, the baffle plate (8) fixed to the upper end of the first guide rod (6) is pushed upward, the pressure spring (7) between the fixed plate (5) and the inverted L-shaped plate (4) is compressed, the aluminum alloy plate is placed on the top of the base (1), and moves from left to right, the aluminum alloy plate is moved from left to right by the steel ball (9) at the lower end of the fixed plate (5), and the aluminum alloy plate is pressed against the top surface of the base (1) by the pressure spring (7), and when the aluminum alloy plate covers the rectangular guide groove (29) and the guide port (30) opened on the top surface of the base (1), the hydraulic cylinder (10) is started; S2, when the hydraulic cylinder (10) is started, a hydraulic rod extends from the lower end of the hydraulic cylinder (10), and the inverted U-shaped plate (11) is pushed downward by the hydraulic rod. At this time, the connecting plates (12) fixed on both sides of the inverted U-shaped plate (11) move downward, and the connecting plates (12) and the pressure plates (13) are connected by the buffer springs (15). When the connecting plates (12) move downward, the pressure plates (13) also move downward. When the bottom surface of the pressure plate (13) contacts the aluminum alloy plate, the pressure plate (13) no longer moves. When the connecting plate (12) is still moving downward, the buffer spring (15) between the connecting plate (12) and the pressure plate (13) is in a compressed state, and the retaining ring (16) at the upper end of the connecting plate (12) no longer contacts the connecting plate (12). At this time, the pressure plate (13) presses the aluminum alloy plate to fix it; S3, when the connecting plate (12) continues to descend, the rectangular chopping plate (17) fixed to the bottom surface of the connecting plate (12) by a nut will continue to descend. When the bottom surface of the rectangular chopping plate (17) contacts the aluminum alloy plate, the hydraulic cylinder (10) continues to start, the connecting plate (12) continues to descend, and the rectangular chopping plate (17) moves downward to cut a rectangular plate from the whole aluminum alloy plate. When the hydraulic cylinder (10) continues to descend, the inverted U-shaped plate (11) continues to descend and is fixed to the inverted U-shaped plate. (11) The punching module (19) on the bottom surface continues to descend, and the rectangular chopping plate (17) falls into the rectangular material guide groove (29) opened on the top surface of the base (1). When the punching module (19) continues to descend, the cut rectangular sheet material is punched into the shape of a threshold, and the blanking module (21) clamped between the punching modules (19) on both sides will open two mounting holes in the middle of the rectangular sheet material, and the waste material under the blanking will be discharged along the material guide port (30) opened on the top surface of the base (1); S4, when the punching and blanking are completed, the hydraulic cylinder (10) is controlled to lift upward, so that the hydraulic rod moves upward, thereby controlling the inverted U-shaped plate (11) to move upward, at which time the punching module (19) and the blanking module (21) move upward and separate from the punching groove (32) and the blanking port (33) opened on the top surface of the base (1), and the rectangular chopping plate (17) moves upward and separates from the rectangular guide groove (29) opened on the top surface of the base (1). At this time, the buffer spring (15) changes from a compressed state to a stretched state, and the second guide rod (14) fixed to the top surface of the pressing plate (13) moves upward, and starts to rise when the bottom surface of the retaining ring (16) contacts the top surface of the connecting plate (12); when the punching assembly rises, the electric push cylinder (23) is started; S5, when the punching assembly leaves the base (1), the electric push cylinder (23) is started, and the push block (22) is pushed into the punching groove (32) by the electric push cylinder (23), so that the punched aluminum alloy plate is pushed forward. At this time, the aluminum alloy plate in the punching groove (32) moves forward, and the front end of the aluminum alloy is clamped on the rollers (27) on both sides. At this time, the return spring (26) is in a compressed state, and then the servo motor (28) on the right side is started, and the servo motor (28) rotates the right side roller (27) counterclockwise. At this time, the left side roller (27) rotates clockwise, so that the punched aluminum alloy plate is pulled out; then the aluminum alloy plate on the base (1) is moved to the right, so that the uncut part covers the rectangular guide groove (29) opened on the top surface of the base (1), and punching is performed again.

Images