A mold automatic switching device for a stamping machine tool and a method of using the same

Abstract

The present invention relates to the technical field of stamping equipment, and specifically to an automatic mold switching device for a stamping machine tool and a method of using the device, including a lower mold frame and an upper mold frame, a positioning fine-tuning mechanism, a disassembly and installation synchronization mechanism, a stamping support mechanism, and a corner positioning mechanism, wherein the outer walls of the upper mold frame and the lower mold frame are fixedly connected to a flip motor, the output shafts of the two flip motors are fixedly connected to a transmission shaft, and the ends of the two transmission shafts away from the flip motor are fixedly connected to a mold switching seat. The present invention uses a height-adjustable telescopic rod to enable the stamping support mechanism to not only provide sufficient support when the stamping machine tool is working, but also a linked disassembly and installation synchronization mechanism to realize the installation of two new mold bodies while disassembling the upper and lower old mold bodies, thereby simplifying the steps required for the stamping machine tool to replace the old upper and lower molds with the new upper and lower molds, greatly saving the replacement time and ensuring the replacement accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of stamping equipment, and in particular to an automatic mold switching device for a stamping machine tool and a use method thereof. Background Art

[0002] Molds are various dies and tools used in industrial production to obtain the required products by stamping and other methods. In short, molds are tools used to make molded objects. They mainly realize the processing of the object's shape by changing the physical state of the formed material. In stamping operations, different molds need to be replaced according to different processing requirements to meet the stamping processing needs, and molds are prone to wear in long-term stamping operations, so they need to be replaced.

[0003] The patent with announcement number CN117181882B discloses a stamping equipment that can quickly replace molds. The present invention pre-positions the lower mold body and the upper mold body respectively through a first pre-positioning component and a second pre-positioning component, thereby improving the installation accuracy of the lower mold body and the upper mold body, and reducing friction through balls, thereby facilitating the installation and later disassembly of the lower mold body and the upper mold body. At the same time, the end corners of the lower mold body and the upper mold body are positioned respectively through the first positioning component and the second positioning component, thereby further improving the installation accuracy of the lower mold body and the upper mold body, and through the elastic action of the first spring, after the first locking component is unlocked, under the combined action of the balls, it is convenient to lift up the lower mold body for easy disassembly, and the lower mold body and the upper mold body are locked and fixed by the first locking component and the second locking component, thereby ensuring the installation accuracy of the lower mold body and the upper mold body while improving the installation and disassembly efficiency of the lower mold body and the upper mold body.

[0004] However, the above invention still has some shortcomings in actual use: 1. The process of replacing the mold is: raise the upper mold to leave a distance between the upper and lower molds for easy disassembly - disassemble the upper and lower molds separately - install new upper and lower molds separately. The whole process is done step by step, which is very time-consuming and labor-intensive. The upper and lower molds need to be disassembled and installed separately, and there is a lack of mutual coordination mechanism; 2. It is impossible to disassemble the upper and lower molds at the same time, and it is also impossible to disassemble the old upper and lower molds and install the new upper and lower molds at the same time. The degree of automation is poor and the efficiency of switching molds is low. Therefore, an automatic mold switching device for a stamping machine and a method of using the same are proposed to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the problems in the background technology and to propose an automatic mold switching device for a stamping machine tool and a method of using the same.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] The cam is connected with the upper and lower mold bases of the machine tool, and the cam is connected with the upper and lower mold bases of the machine tool to adjust the height of the mold.

[0008] A positioning fine-adjustment mechanism, used for positioning the preliminary center of the mold body, the positioning fine-adjustment mechanism being installed on the mold switching seat;

[0009] The disassembly and installation synchronization mechanism is used to cooperate with the positioning fine-tuning mechanism to install the new mold body while disassembling the old mold body;

[0010] The stamping support mechanism is used to provide support when the stamping machine is working and drive the disassembly and installation synchronization mechanism to move;

[0011] And the corner positioning mechanism is used to cooperate with the positioning fine-adjustment mechanism to lock the four corners of the mold body and the mold switching seat.

[0012] Preferably, a hexagonal positioning groove is provided at the bottom of the mold body, and the stamping support mechanism includes a connecting slide bar 1, a limiting slide rail 1, a slide bar 2 and two stamping support plates, the limiting slide rail 1 is fixedly connected to the connecting plate 1, the slide bar 2 is slidably connected to the limiting slide rail 1, the slide bar 2 is fixedly connected to the connecting slide bar 1, and the two stamping support plates are respectively slidably connected to the inner walls of the upper mold frame and the lower mold frame, one of the stamping support plates is fixedly connected to the connecting slide bar 1, and the other stamping support plate is slidably connected to the connecting slide bar 1, and two stamping support mechanisms are provided, and the two stamping support mechanisms are symmetrically distributed.

[0013] Preferably, the inner walls of the two stamping support plates connected to the same connecting slide rod are both slidably connected with a first rack, and the disassembly and installation synchronization mechanism includes a first gear, a first shaft rod and a gear column, the first shaft rod is rotatably connected to the mold switching seat, the first gear is fixedly connected to the outer wall of the first shaft rod, and the gear column is fixedly connected to the mold switching seat.

[0014] Preferably, the disassembly and installation synchronization mechanism also includes mounting plate 1, movable rack 1, movable rack 2 and mounting plate 2, the movable rack 1 and movable rack 2 are both engaged with the outer wall of the gear column, the mounting plate 1 is fixedly connected to the outer wall of the movable rack 1, and the movable rack 2 is fixedly connected to the outer wall of the mounting plate 2.

[0015] Preferably, the positioning fine-adjustment mechanism includes a mounting seat 2 and six inclined positioning plates, the six inclined positioning plates are all fixedly connected to the mounting seat 2, the outer walls of the mounting plate 1 and the mounting plate 2 are both provided with positioning fine-adjustment mechanisms, the two positioning fine-adjustment mechanisms are symmetrically distributed, and the two mounting seats 2 are respectively fixedly connected to the mounting plate 1 and the mounting plate 2.

[0016] Preferably, the corner positioning mechanism includes a return spring, an angled baffle, a transmission gear 1, a chain body and two sprocket wheels, the angled baffle is slidably connected to the inner wall of the mold switching seat, the outer wall of the angled baffle is meshed with the transmission gear 1, the chain body is sleeved on the outer walls of the two sprocket wheels, the two sprocket wheels are rotatably connected to the inner wall of the mold switching seat, and the transmission gear 1 is fixedly connected to one of the sprocket wheels.

[0017] Preferably, the corner positioning mechanism also includes transmission gear three, a third shaft rod, a corner locking block, a pressure spring and a bevel pressure block. The transmission gear three and the transmission gear two are rotatably connected to the inner wall of the mold switching seat, the transmission gear three is fixedly connected to another sprocket wheel, the transmission gear three is meshed with the outer wall of the transmission gear two, the third shaft rod is fixedly connected to the transmission gear two, the corner locking block is fixedly connected to the end of the third shaft rod away from the transmission gear two, the bevel pressure block is slidably connected to the corner locking block, and the pressure spring is fixedly connected between the bevel pressure block and the corner locking block.

[0018] Preferably, the outer walls of the two first racks are slidably connected with a first sliding rod, the outer walls of the two first sliding rods are slidably connected with a fixed frame, the outer walls of the two fixed frames are respectively fixedly connected to the upper mold frame and the lower mold frame, the two first sliding rods are slidably connected with an inclined slide groove at one end away from the first rack, the two inclined slide grooves are respectively slidably connected to the upper mold frame and the lower mold frame, the outer walls of the two inclined slide grooves are fixedly connected with a second sliding rod, the two second sliding rods are slidably connected with a cam at one end away from the inclined slide groove, and the two cams are respectively fixedly connected to the two transmission shafts.

[0019] In the above-mentioned automatic mold switching method for a stamping machine tool, the above-mentioned automatic mold switching device for a stamping machine tool is applied, which includes the following steps:

[0020] S1. The height adjustment telescopic rod retracts and drives the limit slide rail to move down. The limit slide bar 2 drives the connecting slide bar 1 to approach the mold switching seat. The stamping support plates on both sides are inserted into the mold switching seat to provide sufficient support for the mold switching seat during stamping.

[0021] S2, the stamping support plate drives the first rack to mesh with the first gear, the first gear drives the gear column to rotate through the first shaft rod, thereby driving the movable rack 1 and the movable rack 2 to move up at the same time, the movable rack 1 drives the mounting plate 1 to move up, and the movable rack 2 drives the mounting plate 2 to move up;

[0022] S3. The inclined surface positioning plate is slowly inserted into the hexagonal positioning groove. When the flat part of the inclined surface positioning plate is gradually inserted into the hexagonal positioning groove, the center position of the mold body can be fine-tuned;

[0023] S4, the inclined positioning plate squeezes the bevel baffle, and when the bevel baffle moves, the tooth groove on the outer wall will mesh with the transmission gear 1, and the transmission gear 1 and the chain wheel will rotate, and the transmission gear 3 is set to drive the transmission gear 2 to rotate 180 degrees, thereby locking the four corners of the two new mold bodies in the middle;

[0024] S5, the second moving rack and the second mounting plate move upward, the second mounting plate drives the second mounting seat and the inclined surface positioning plate connected thereto to retract into the mold switching seat, the lower bevel baffle is not affected by the inclined surface positioning plate and is reset, the four corner locking blocks at the bottom are opened, and the old mold body is easily removed, so that the installation of two new upper and lower mold bodies and the disassembly of two old upper and lower mold bodies can be completed at the same time;

[0025] S6. When the mold body needs to be replaced, the new mold body is slid into the opposite side of the two mold switching seats through the limiting slide rail 2, the height adjustment telescopic rod is extended, the first rack is meshed with the first gear, the mold bodies on the opposite side of the two mold switching seats are removed, and the new mold bodies on the opposite side are installed;

[0026] S7, the flip motor rotates 180 degrees, the two mold bodies originally facing each other flip, the cam squeezes the inclined slide groove, so that the first slide bar pushes out the first rack, the first rack does not mesh with the first gear, and the new mold body is fixed on the opposite side of the two mold switching seats, and then the height adjustment telescopic rod is retracted and reset to complete the mold switching.

[0027] Compared with the prior art, the advantages of the automatic mold switching device for a stamping machine tool and the use method thereof provided by the present invention are:

[0028] 1. The height adjustment telescopic rod retracts and drives the limit slide rail to move down. The limit slide bar 2 drives the connecting slide bar 1 to approach the mold switching seat. The stamping support plates on both sides are inserted into the mold switching seat to provide sufficient support for the mold switching seat during stamping;

[0029] 2. The inclined positioning plate squeezes the bevel baffle. When the bevel baffle moves, the tooth groove on the outer wall will mesh with the transmission gear 1. The transmission gear 1 and the chain wheel rotate. The transmission gear 3 is set to drive the transmission gear 2 to rotate 180 degrees, thereby locking the four corners of the two new mold bodies in the middle;

[0030] 3. Move the second rack and the second mounting plate upward, and the second mounting plate drives the second mounting seat and the inclined surface positioning plate connected thereto to retract into the mold switching seat. The lower bevel baffle is not affected by the inclined surface positioning plate and is reset. The four corner locking blocks at the bottom are opened to facilitate the removal of the old mold body. The installation of two new upper and lower mold bodies and the disassembly of the two old upper and lower mold bodies can be completed at the same time.

[0031] To sum up, the present invention uses a height-adjustable telescopic rod to enable the stamping support mechanism to not only provide sufficient support when the stamping machine is working, but also the linked disassembly and installation synchronization mechanism realizes the installation of two new mold bodies while disassembling the upper and lower old mold bodies, thereby simplifying the steps required for replacing the old upper and lower molds with the new upper and lower molds of the stamping machine, greatly saving replacement time and ensuring replacement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0033] Figure 2 The present invention Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0034] Figure 3 It is a schematic diagram of the structure inside the upper mold frame and the lower mold frame of the present invention;

[0035] Figure 4 The present invention Figure 3 A schematic diagram of the partially enlarged structure at B in the middle;

[0036] Figure 5 The present invention Figure 3 A schematic diagram of the partially enlarged structure at C in the middle;

[0037] Figure 6 This is a schematic diagram of the structure inside the mold switching seat of the present invention. Figure 1 ;

[0038] Figure 7 The present invention Figure 6 The schematic diagram of the local enlarged structure at D in the middle;

[0039] Figure 8 The present invention Figure 6 The schematic diagram of the local enlarged structure at E in the middle;

[0040] Fig. 9 This is a schematic diagram of the structure inside the mold switching seat of the present invention. Figure 2 ;

[0041] Fig.10 The present invention Fig. 9 The schematic diagram of the partial enlarged structure at F in the middle;

[0042] Fig.11 It is a structural schematic diagram of the cam of the present invention.

[0043] In the figure: 1. Height adjustment telescopic rod; 2. Connecting plate 1; 3. Stamping telescopic rod; 4. Connecting plate 2; 5. Upper die frame; 6. Lower die frame; 7. Flip motor; 8. Connecting slide bar 1; 9. Stamping support plate; 10. Die switching seat; 11. Mounting seat 1; 12. Slide bar 2; 13. Limiting slide rail 1; 14. Die body; 15. Hexagonal positioning groove; 16. First rack; 17. Corner locking block; 18. First gear; 19. First shaft rod; 20. Mounting plate 1; 21. Moving rack 1; 22. Moving rack 2; 23. Mounting plate 2; 24. Gear column; 25. Transmission shaft; 26. Mounting seat 2; 27. Pressure spring; 28. Limiting slide rail 2; 29. ​​Return spring; 30. Bevel baffle; 31. Inclined positioning plate; 32. Transmission gear 1; 33. Chain wheel; 34. Chain body; 35. Inclined pressure block; 36. Third shaft; 37. Transmission gear 2; 38. Transmission gear 3; 39. Fixed frame; 40. Inclined slide groove; 41. Cam; 42. Second slide bar; 43. First slide bar; 101. Stamping support mechanism; 202. Disassembly and installation synchronization mechanism; 303. Positioning fine-tuning mechanism; 404. Corner positioning mechanism. DETAILED DESCRIPTION

[0044] 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.

[0045] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0046] Reference Figure 1-Figure 11, an automatic mold switching device for a stamping machine tool, comprising a lower mold frame 6 and an upper mold frame 5, the outer wall of the lower mold frame 6 is fixedly connected with a height-adjusting telescopic rod 1, the top outer wall of the lower mold frame 6 is fixedly connected with a mounting seat 11, the upper mold frame 5 is slidably connected to the outer wall of the mounting seat 11, the end of the height-adjusting telescopic rod 1 is fixedly connected with a connecting plate 2, the top outer wall of the connecting plate 2 is fixedly connected with a stamping telescopic rod 3, the end of the stamping telescopic rod 3 is fixedly connected with a connecting plate 2 4, the outer wall of the connecting plate 2 4 is fixedly connected to the upper mold frame 5, the outer walls of the upper mold frame 5 and the lower mold frame 6 are both fixedly connected with a flip motor 7, the output shafts of the two flip motors 7 are both fixedly connected with a transmission shaft 25, and the ends of the two transmission shafts 25 away from the flip motor 7 are fixedly connected It is connected to a mold switching seat 10, and the upper and lower outer walls of the two mold switching seats 10 are respectively fixedly connected with two limit slide rails 28. The outer walls on both sides of the two mold switching seats 10 are provided with a mold body 14, and also include: a positioning fine-adjustment mechanism 303, which is used to position the initial center of the mold body 14, and the positioning fine-adjustment mechanism 303 is installed on the mold switching seat 10; a disassembly and installation synchronization mechanism 202, which is used to cooperate with the positioning fine-adjustment mechanism 303 to be able to install the new mold body 14 while disassembling the old mold body 14; a stamping support mechanism 101, which is used to provide support when the stamping machine is working and drive the disassembly and installation synchronization mechanism 202 to move; and a corner positioning mechanism 404, which is used to cooperate with the positioning fine-adjustment mechanism 303 to lock the mold body 14 and the four corners of the mold switching seat 10.

[0047] Among them, a hexagonal positioning groove 15 is opened at the bottom of the mold body 14, and the stamping support mechanism 101 includes a connecting slide bar 18, a limiting slide rail 13, a slide bar 2 12 and two stamping support plates 9. The limiting slide rail 13 is fixedly connected to the connecting plate 2, the slide bar 2 12 is slidably connected to the limiting slide rail 13, the slide bar 2 12 is fixedly connected to the connecting slide bar 8, and the two stamping support plates 9 are respectively slidably connected to the inner walls of the upper mold frame 5 and the lower mold frame 6, one of the stamping support plates 9 is fixedly connected to the connecting slide bar 18, and the other stamping support plate 9 is slidably connected to the connecting slide bar 18. Two stamping support mechanisms 101 are provided, and the two stamping support mechanisms 101 are symmetrically distributed.

[0048] In this embodiment, if Figure 3 As shown, the two middle mold bodies 14 are new upper and lower mold bodies 14, the uppermost and lowermost mold bodies 14 are old upper and lower mold bodies 14, and the direction where the upper mold frame 5 is located is upward, as shown in FIG. Figure 5 As shown, at this time, the upper corner locking block 17 does not lock the new mold body 14, and the lower corner locking block 17 locks the old mold body 14.

[0049] Then the height adjustment telescopic rod 1 is retracted to adjust the distance between the upper mold frame 5 and the lower mold frame 6. Figure 1-Figure 2 As shown, the height adjustment telescopic rod 1 is retracted to drive the limit slide rail 13 to move downward, thereby limiting the slide bar 2 12 to drive the connecting slide bar 1 8 to approach the mold switching seat 10, as shown in FIG. Figure 3-Figure 5 As shown, the stamping support plates 9 on both sides are inserted into the mold switching seat 10 to provide sufficient support for the mold switching seat 10 during stamping.

[0050] Among them, the inner walls of the two stamping support plates 9 connected to the same connecting slide rod 8 are both slidably connected with the first rack 16, and the disassembly and installation synchronization mechanism 202 includes a first gear 18, a first shaft rod 19 and a gear column 24. The first shaft rod 19 is rotatably connected to the mold switching seat 10, the first gear 18 is fixedly connected to the outer wall of the first shaft rod 19, and the gear column 24 is fixedly connected to the mold switching seat 10.

[0051] Among them, the disassembly and installation synchronization mechanism 202 also includes a mounting plate 20, a movable rack 21, a movable rack 22 and a mounting plate 23. The movable rack 21 and the movable rack 22 are both engaged with the outer wall of the gear column 24. The mounting plate 20 is fixedly connected to the outer wall of the movable rack 21, and the movable rack 22 is fixedly connected to the outer wall of the mounting plate 23.

[0052] In this embodiment, the stamping support plate 9 drives the first rack 16 to mesh with the first gear 18. Figure 6 As shown, the first gear 18 drives the gear column 24 to rotate through the first shaft 19, thereby driving the movable rack 1 21 and the movable rack 2 22 to move up at the same time, so that the movable rack 1 21 drives the mounting plate 1 20 to move up, and the movable rack 2 22 drives the mounting plate 2 23 to move up.

[0053] Among them, the positioning fine-adjustment mechanism 303 includes a mounting seat 26 and six inclined positioning plates 31, and the six inclined positioning plates 31 are all fixedly connected to the mounting seat 26. The outer walls of the mounting plate 1 20 and the mounting plate 2 23 are both provided with positioning fine-adjustment mechanisms 303. The two positioning fine-adjustment mechanisms 303 are symmetrically distributed, and the two mounting seats 26 are respectively fixedly connected to the mounting plate 1 20 and the mounting plate 2 23.

[0054] In this embodiment, if Figure 6-Figure 10 As shown, the mounting plate 1 20 drives the mounting seat 2 26 and the bevel positioning plate 31 to move upward, so that the bevel positioning plate 31 is slowly inserted into the hexagonal positioning groove 15. Since the end of the bevel positioning plate 31 is a bevel, when the plane part of the bevel positioning plate 31 is gradually inserted into the hexagonal positioning groove 15, the center position of the mold body 14 can be fine-tuned.

[0055] Among them, the corner positioning mechanism 404 includes a reset spring 29, an angled baffle plate 30, a transmission gear 32, a chain body 34 and two sprocket wheels 33. The angled baffle plate 30 is slidingly connected to the inner wall of the mold switching seat 10, and the outer wall of the angled baffle plate 30 is meshed with the transmission gear 32. The chain body 34 is sleeved on the outer walls of the two sprocket wheels 33. The two sprocket wheels 33 are both rotatably connected to the inner wall of the mold switching seat 10, and the transmission gear 32 is fixedly connected to one of the sprocket wheels 33.

[0056] Among them, the corner positioning mechanism 404 also includes a transmission gear three 38, a third shaft rod 36, a corner locking block 17, a pressure spring 27 and a bevel pressure block 35. The transmission gear three 38 and the transmission gear two 37 are rotatably connected to the inner wall of the mold switching seat 10, the transmission gear three 38 is fixedly connected to another sprocket wheel 33, the transmission gear three 38 is meshed with the outer wall of the transmission gear two 37, the third shaft rod 36 is fixedly connected to the transmission gear two 37, the corner locking block 17 is fixedly connected to one end of the third shaft rod 36 away from the transmission gear two 37, the bevel pressure block 35 is slidably connected to the corner locking block 17, and the pressure spring 27 is fixedly connected between the bevel pressure block 35 and the corner locking block 17.

[0057] In this embodiment, the inclined positioning plate 31 will squeeze the bevel baffle 30 at the same time, so that when the bevel baffle 30 moves, the tooth groove on the outer wall will engage with the transmission gear 1 32, thereby driving the transmission gear 1 32 and the sprocket wheel 33 to rotate, and the sprocket wheel 33 drives the transmission gear 3 38 and the transmission gear 2 37 to rotate through the chain body 34. The transmission gear 3 38 is set to drive the transmission gear 2 37 to rotate one hundred and eighty degrees, thereby locking the four corners of the two new middle mold bodies 14, and the inclined pressure block 35 is in contact with the surface of the mold body 14 and retracted into the corner locking block 17, and the pressure spring 27 is squeezed and acts on the contact part of the inclined pressure block 35 and the mold body 14, so that the mold body 14 is tightly attached to the surface of the mold switching seat 10.

[0058] Among them, the outer walls of the two first racks 16 are slidably connected with the first sliding rods 43, the outer walls of the two first sliding rods 43 are slidably connected with the fixing frames 39, the outer walls of the two fixing frames 39 are respectively fixedly connected to the upper mold frame 5 and the lower mold frame 6, the two first sliding rods 43 are slidably connected to the inclined slide grooves 40 at one end away from the first rack 16, the two inclined slide grooves 40 are respectively slidably connected to the upper mold frame 5 and the lower mold frame 6, the outer walls of the two inclined slide grooves 40 are respectively fixedly connected with the second sliding rods 42, the two second sliding rods 42 are slidably connected to the ends away from the inclined slide grooves 40, and the two cams 41 are respectively fixedly connected to the two transmission shafts 25.

[0059] In this embodiment, if Figure 6 and Fig. 9As shown, the movable rack 22 and the mounting plate 23 move upward, and the mounting plate 23 drives the mounting seat 26 and the inclined positioning plate 31 connected thereto to retract into the mold switching seat 10, and the bevel baffle 30 below is not affected by the bevel positioning plate 31 and is reset, so that the four corner locking blocks 17 below are opened, which is convenient for removing the old mold body 14, and can simultaneously complete the installation of two new upper and lower mold bodies 14 and the disassembly of the two old upper and lower mold bodies 14. The two old upper and lower mold bodies 14 can be disassembled and taken away, and the stamping telescopic rod 3 is extended and retracted to realize the stamping of the upper mold body 14.

[0060] When the mold body 14 needs to be replaced, the new mold body 14 is slid into the opposite side of the two mold switching seats 10 through the limiting slide rail 28, and then the height adjustment telescopic rod 1 is extended, and the first rack 16 is meshed with the first gear 18. At this time, the mold body 14 on the opposite side of the two mold switching seats 10 is removed, and the new mold body 14 on the opposite side is installed. Then the flip motor 7 rotates 180 degrees, so that the two mold bodies 14 originally facing each other are flipped, as shown in FIG. Fig.11 As shown, the cam 41 squeezes the inclined slide groove 40, so that the first slide rod 43 pushes the first rack 16 out, so that the first rack 16 is not engaged with the first gear 18. At this time, the new mold body 14 is fixed on the opposite side of the two mold switching seats 10, and then the height adjustment telescopic rod 1 is retracted and reset to complete the mold switching.

[0061] A die automatic switching method for a stamping machine tool uses a die automatic switching device for a stamping machine tool, comprising the following steps:

[0062] S1. The height-adjusting telescopic rod 1 is retracted to drive the limiting slide rail 13 to move downward, and the limiting slide bar 12 drives the connecting slide bar 18 to approach the mold switching seat 10. The stamping support plates 9 on both sides are inserted into the mold switching seat 10 to provide sufficient support for the mold switching seat 10 during stamping;

[0063] S2, the stamping support plate 9 drives the first rack 16 to mesh with the first gear 18, the first gear 18 drives the gear column 24 to rotate through the first shaft 19, thereby driving the moving rack 1 21 and the moving rack 2 22 to move up at the same time, the moving rack 1 21 drives the mounting plate 1 20 to move up, and the moving rack 2 22 drives the mounting plate 2 23 to move up;

[0064] S3, the inclined surface positioning plate 31 is slowly inserted into the hexagonal positioning groove 15. When the plane part of the inclined surface positioning plate 31 is gradually inserted into the hexagonal positioning groove 15, the center position of the mold body 14 can be fine-tuned;

[0065] S4, the inclined positioning plate 31 squeezes the bevel baffle 30, and when the bevel baffle 30 moves, the tooth groove on the outer wall will mesh with the transmission gear 1 32, and the transmission gear 1 32 and the chain wheel 33 rotate, and the transmission gear 3 38 is set to drive the transmission gear 2 37 to rotate 180 degrees, thereby locking the four corners of the two new mold bodies 14 in the middle;

[0066] S5, the second rack 22 and the second mounting plate 23 are moved upward, and the second mounting plate 23 drives the second mounting seat 26 and the inclined surface positioning plate 31 connected thereto to retract into the mold switching seat 10, and the lower bevel baffle 30 is not affected by the inclined surface positioning plate 31 and is reset, and the four corner locking blocks 17 at the lower side are opened, so that the old mold body 14 can be taken away, and the installation of two new upper and lower mold bodies 14 and the disassembly of two old upper and lower mold bodies 14 can be completed at the same time;

[0067] S6. When the mold body 14 needs to be replaced, the new mold body 14 is slid into the opposite side of the two mold switching seats 10 through the limiting slide rail 28, the height adjustment telescopic rod 1 is extended, the first rack 16 is meshed with the first gear 18, the mold bodies 14 on the opposite side of the two mold switching seats 10 are removed, and the new mold bodies 14 on the opposite side are installed;

[0068] S7, the flip motor 7 rotates 180 degrees, the two mold bodies 14 that were originally facing each other flip, the cam 41 squeezes the inclined slide groove 40, so that the first slide rod 43 pushes out the first rack 16, and the first rack 16 does not mesh with the first gear 18. The new mold body 14 is fixed on the side facing the two mold switching seats 10, and then the height adjustment telescopic rod 1 is retracted and reset to complete the mold switching.

[0069] The specific working principle and use method of the present invention are explained in detail below: When using, Figure 3 As shown, the two middle mold bodies 14 are new upper and lower mold bodies 14, the uppermost and lowermost mold bodies 14 are old upper and lower mold bodies 14, and the direction where the upper mold frame 5 is located is upward, as shown in FIG. Figure 5 As shown, at this time, the upper corner locking block 17 does not lock the new mold body 14, and the lower corner locking block 17 locks the old mold body 14.

[0070] Then the height adjustment telescopic rod 1 is retracted to adjust the distance between the upper mold frame 5 and the lower mold frame 6. Figure 1-Figure 2 As shown, the height adjustment telescopic rod 1 is retracted to drive the limit slide rail 13 to move downward, thereby limiting the slide bar 2 12 to drive the connecting slide bar 1 8 to approach the mold switching seat 10, as shown in FIG. Figure 3-Figure 5As shown, the stamping support plates 9 on both sides are inserted into the mold switching seat 10 to provide sufficient support for the mold switching seat 10 during stamping. At the same time, the stamping support plate 9 drives the first rack 16 to mesh with the first gear 18, as shown in FIG. Figure 6 As shown, the first gear 18 drives the gear column 24 to rotate through the first shaft 19, thereby driving the movable rack 1 21 and the movable rack 2 22 to move up at the same time, so that the movable rack 1 21 drives the mounting plate 1 20 to move up, and the movable rack 2 22 drives the mounting plate 2 23 to move up.

[0071] like Figure 6-Figure 10 As shown, the mounting plate 1 20 drives the mounting seat 2 26 and the inclined surface positioning plate 31 to move upward, so that the inclined surface positioning plate 31 is slowly inserted into the hexagonal positioning groove 15. Since the end of the inclined surface positioning plate 31 is an inclined surface, when the plane part of the inclined surface positioning plate 31 is gradually inserted into the hexagonal positioning groove 15, the center position of the mold body 14 can be fine-tuned. At the same time, the inclined surface positioning plate 31 will squeeze the bevel baffle 30, so that when the bevel baffle 30 moves, the tooth groove of the outer wall will mesh with the transmission gear 1 32, thereby driving the transmission gear 1 32 and The sprocket wheel 33 rotates, and the sprocket wheel 33 drives the transmission gear three 38 and the transmission gear two 37 to rotate through the chain body 34. The transmission gear three 38 is set to drive the transmission gear two 37 to rotate one hundred and eighty degrees, thereby locking the four corners of the two new middle mold bodies 14, and the inclined pressure block 35 is in contact with the surface of the mold body 14 and retracted into the corner locking block 17, and the pressure spring 27 is squeezed and acts on the contact part between the inclined pressure block 35 and the mold body 14, so that the mold body 14 is tightly attached to the surface of the mold switching seat 10.

[0072] like Figure 6 and Fig. 9 As shown, the movable rack 22 and the mounting plate 23 move upward, and the mounting plate 23 drives the mounting seat 26 and the inclined positioning plate 31 connected thereto to retract into the mold switching seat 10, and the bevel baffle 30 below is not affected by the bevel positioning plate 31 and is reset, so that the four corner locking blocks 17 below are opened, which is convenient for removing the old mold body 14, and can simultaneously complete the installation of two new upper and lower mold bodies 14 and the disassembly of the two old upper and lower mold bodies 14. The two old upper and lower mold bodies 14 can be disassembled and taken away, and the stamping telescopic rod 3 is extended and retracted to realize the stamping of the upper mold body 14.

[0073] When the mold body 14 needs to be replaced, the new mold body 14 is slid into the opposite side of the two mold switching seats 10 through the limiting slide rail 28, and then the height adjustment telescopic rod 1 is extended, and the first rack 16 is meshed with the first gear 18. At this time, the mold body 14 on the opposite side of the two mold switching seats 10 is removed, and the new mold body 14 on the opposite side is installed. Then the flip motor 7 rotates 180 degrees, so that the two mold bodies 14 originally facing each other are flipped, as shown in FIG. Fig.11 As shown, the cam 41 squeezes the inclined slide groove 40, so that the first slide rod 43 pushes the first rack 16 out, so that the first rack 16 is not engaged with the first gear 18. At this time, the new mold body 14 is fixed on the opposite side of the two mold switching seats 10, and then the height adjustment telescopic rod 1 is retracted and reset to complete the mold switching.

[0074] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece forming and other conventional means well known to those skilled in the art.

[0075] The above description is only a preferred specific implementation manner 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 scheme and inventive concept 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. An automatic mold switching device for a stamping machine tool, comprising a lower mold frame (6) and an upper mold frame (5), wherein the outer wall of the lower mold frame (6) is fixedly connected to a height-adjusting telescopic rod (1), the top outer wall of the lower mold frame (6) is fixedly connected to a mounting seat 1 (11), the upper mold frame (5) is slidably connected to the outer wall of the mounting seat 1 (11), the end of the height-adjusting telescopic rod (1) is fixedly connected to a connecting plate 1 (2), the top outer wall of the connecting plate 1 (2) is fixedly connected to a stamping telescopic rod (3), and the end of the stamping telescopic rod (3) is fixedly connected to a connecting plate 2 (4), the outer wall of the second connecting plate (4) is fixedly connected to the upper mold frame (5), the outer walls of the upper mold frame (5) and the lower mold frame (6) are fixedly connected to the flip motor (7), the output shafts of the two flip motors (7) are fixedly connected to the transmission shaft (25), the ends of the two transmission shafts (25) away from the flip motor (7) are fixedly connected to the mold switching seat (10), the upper and lower outer walls of the two mold switching seats (10) are respectively fixedly connected to two limit slide rails (28), and the outer walls on both sides of the two mold switching seats (10) are provided with a mold body (14), characterized in that Also includes: A positioning fine-adjustment mechanism (303) is used for positioning the initial center of the mold body (14), and the positioning fine-adjustment mechanism (303) is installed on the mold switching seat (10); A disassembly and installation synchronization mechanism (202) is used to cooperate with the positioning fine-tuning mechanism (303) to enable the new mold body (14) to be installed while the old mold body (14) is being disassembled; A stamping support mechanism (101) is used to provide support when the stamping machine is working and drive the disassembly and installation synchronization mechanism (202) to move; and a corner positioning mechanism (404) for cooperating with the positioning fine-adjustment mechanism (303) to lock the four corners of the mold body (14) and the mold switching seat (10); A hexagonal positioning groove (15) is provided at the bottom of the mold body (14); the stamping support mechanism (101) comprises a connecting slide bar 1 (8), a limiting slide rail 1 (13), a slide bar 2 (12) and two stamping support plates (9); the limiting slide rail 1 (13) is fixedly connected to the connecting plate 1 (2); the slide bar 2 (12) is slidably connected to the limiting slide rail 1 (13); the slide bar 2 (12) is fixedly connected to the connecting slide bar 1 (8); the two stamping support plates (9) are slidably connected to the inner walls of the upper mold frame (5) and the lower mold frame (6), respectively; one of the stamping support plates (9) is fixedly connected to the connecting slide bar 1 (8); the other stamping support plate (9) is slidably connected to the connecting slide bar 1 (8); two stamping support mechanisms (101) are provided, and the two stamping support mechanisms (101) are symmetrically distributed; The inner walls of the two stamping support plates (9) connected to the same connecting slide rod (8) are both slidably connected with a first rack (16), the disassembly and installation synchronization mechanism (202) comprises a first gear (18), a first shaft (19) and a gear column (24), the first shaft (19) is rotatably connected to the mold switching seat (10), the first gear (18) is fixedly connected to the outer wall of the first shaft (19), and the gear column (24) is fixedly connected to the mold switching seat (10); The disassembly and installation synchronization mechanism (202) further comprises a mounting plate 1 (20), a movable rack 1 (21), a movable rack 2 (22) and a mounting plate 2 (23); the movable rack 1 (21) and the movable rack 2 (22) are both meshed with the outer wall of the gear column (24); the mounting plate 1 (20) is fixedly connected to the outer wall of the movable rack 1 (21); and the movable rack 2 (22) is fixedly connected to the outer wall of the mounting plate 2 (23).

2. The automatic mold switching device for a stamping machine tool according to claim 1, characterized in that: The positioning fine-adjustment mechanism (303) comprises a second mounting seat (26) and six inclined positioning plates (31), the six inclined positioning plates (31) are all fixedly connected to the second mounting seat (26), the outer walls of the first mounting plate (20) and the second mounting plate (23) are both provided with positioning fine-adjustment mechanisms (303), the two positioning fine-adjustment mechanisms (303) are symmetrically distributed, and the two second mounting seats (26) are respectively fixedly connected to the first mounting plate (20) and the second mounting plate (23).

3. The automatic mold switching device for a stamping machine tool according to claim 2, characterized in that: The corner positioning mechanism (404) comprises a return spring (29), an angled baffle (30), a transmission gear 1 (32), a chain body (34) and two sprocket wheels (33); the angled baffle (30) is slidably connected to the inner wall of the mold switching seat (10); the outer wall of the angled baffle (30) is meshed with the transmission gear 1 (32); the chain body (34) is sleeved on the outer walls of the two sprocket wheels (33); the two sprocket wheels (33) are both rotatably connected to the inner wall of the mold switching seat (10); and the transmission gear 1 (32) is fixedly connected to one of the sprocket wheels (33).

4. The automatic mold switching device for a stamping machine tool according to claim 3, characterized in that: The corner positioning mechanism (404) further comprises a transmission gear three (38), a third shaft (36), a corner locking block (17), a pressure spring (27) and a bevel pressure block (35); the transmission gear three (38) and the transmission gear two (37) are rotatably connected to the inner wall of the mold switching seat (10); the transmission gear three (38) is fixedly connected to another sprocket wheel (33); the transmission gear three (38) is meshed with the outer wall of the transmission gear two (37); the third shaft (36) is fixedly connected to the transmission gear two (37); the corner locking block (17) is fixedly connected to one end of the third shaft (36) away from the transmission gear two (37); the bevel pressure block (35) is slidably connected to the corner locking block (17); and the pressure spring (27) is fixedly connected between the bevel pressure block (35) and the corner locking block (17).

5. The automatic mold switching device for a stamping machine tool according to claim 4, characterized in that: The outer walls of the two first racks (16) are slidably connected to first slide bars (43), the outer walls of the two first slide bars (43) are slidably connected to fixed frames (39), the outer walls of the two fixed frames (39) are respectively fixedly connected to the upper die frame (5) and the lower die frame (6), the ends of the two first slide bars (43) away from the first racks (16) are slidably connected to inclined slide grooves (40), the two inclined slide grooves (40) are respectively slidably connected to the upper die frame (5) and the lower die frame (6), the outer walls of the two inclined slide grooves (40) are respectively fixedly connected to second slide bars (42), the ends of the two second slide bars (42) away from the inclined slide grooves (40) are slidably connected to cams (41), and the two cams (41) are respectively fixedly connected to the two transmission shafts (25).

6. A method for automatically switching molds for a stamping machine tool, characterized in that: The automatic mold switching device for a stamping machine tool according to claim 5 is applied, comprising the following steps: S1. The height-adjusting telescopic rod (1) is retracted to drive the limiting slide rail 1 (13) to move downward, and the limiting slide rail 2 (12) drives the connecting slide rail 1 (8) to approach the mold switching seat (10). The stamping support plates (9) on both sides are inserted into the mold switching seat (10) to provide sufficient support for the mold switching seat (10) during stamping. S2, the stamping support plate (9) drives the first rack (16) to mesh with the first gear (18), the first gear (18) drives the gear column (24) to rotate through the first shaft (19), thereby driving the movable rack 1 (21) and the movable rack 2 (22) to move upward at the same time, the movable rack 1 (21) drives the mounting plate 1 (20) to move upward, and the movable rack 2 (22) drives the mounting plate 2 (23) to move upward; S3, the inclined surface positioning plate (31) is slowly inserted into the hexagonal positioning groove (15), and when the flat portion of the inclined surface positioning plate (31) is gradually inserted into the hexagonal positioning groove (15), the center position of the mold body (14) can be finely adjusted; S4, the inclined positioning plate (31) squeezes the bevel baffle (30), and when the bevel baffle (30) moves, the tooth grooves on the outer wall will mesh with the transmission gear 1 (32), the transmission gear 1 (32) and the chain wheel (33) rotate, and the transmission gear 3 (38) is set to drive the transmission gear 2 (37) to rotate 180 degrees, thereby locking the four corners of the two new mold bodies (14) in the middle; S5, the second moving rack (22) and the second mounting plate (23) are moved upward, the second mounting plate (23) drives the second mounting seat (26) and the inclined surface positioning plate (31) connected thereto to retract into the mold switching seat (10), the lower bevel baffle (30) is not affected by the inclined surface positioning plate (31) and is reset, the four corner locking blocks (17) at the lower side are opened, and the old mold body (14) can be easily removed, so that the installation of two new upper and lower mold bodies (14) and the removal of two old upper and lower mold bodies (14) can be completed at the same time; S6. When the mold body (14) needs to be replaced, the new mold body (14) is slid into the opposite sides of the two mold switching seats (10) through the second limiting slide rail (28), the height adjustment telescopic rod (1) is extended, the first rack (16) is meshed with the first gear (18), the mold bodies (14) on the opposite sides of the two mold switching seats (10) are removed, and the new mold bodies (14) on the opposite sides are installed; S7, the flip motor (7) rotates 180 degrees, the two mold bodies (14) originally facing each other flip, the cam (41) squeezes the inclined slide groove (40), so that the first slide bar (43) pushes the first rack (16), the first rack (16) does not mesh with the first gear (18), the new mold body (14) is fixed on the opposite side of the two mold switching seats (10), and then the height adjustment telescopic rod (1) is retracted and reset, and the mold switching is completed.

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