Motorcycle left mounting seat production process and die-casting die for production

Abstract

The die-casting die comprises a lower die body and an upper die body, the lower die body comprises a movable die plate, the upper die body comprises a fixed die plate, a first forming column is arranged on the fixed die plate, and a second forming column and a third forming column are movably arranged on the movable die plate. The movable mold plate is further provided with a first driving mechanism used for driving the second forming column to move and a second driving mechanism used for driving the third forming column to move. A first sliding block is connected to the movable mold plate in a sliding mode, a fourth forming column is arranged on the first sliding block, and a third driving mechanism used for sliding of the first sliding block is arranged on the movable mold plate. A second sliding block and a third sliding block are connected to the movable mold plate in a sliding mode, and plate bodies are arranged on the faces, close to each other, of the second sliding block and the third sliding block. The fixed mold plate is provided with a fourth driving mechanism used for driving the second sliding block to slide and a fifth driving mechanism used for driving the third sliding block to slide. By improving the mold structure, the seat body and the adjusting groove are integrally formed.

Description

Technical Field

[0001] This invention relates to the field of motorcycle accessories, and in particular to a manufacturing process for a left-side motorcycle mounting bracket and a die-casting mold for its production. Background Technology

[0002] A motorcycle left mounting bracket such as Figures 1-3 As shown, it is used to mount the front fork of a motorcycle and is die-cast using a die-casting mold. It includes a base 7, an insertion hole 71 and a first mounting hole 72 disposed on the base 7 and communicating with each other, a connecting hole 73 disposed on the base 7, and two second mounting holes 74. The connecting hole 73 communicates with the first mounting hole 72, and their axes are perpendicular to each other. An adjustment groove 75 is formed on the wall of the connecting hole 73, and the adjustment groove 75 passes through the two second mounting holes 74.

[0003] In the standard manufacturing process of the left mounting base, the adjustment groove 75 is cut out using a wire EDM machine after the base body 7 is die-cast. Using wire EDM to form the adjustment groove 75 adds an extra step to the mounting base manufacturing process, increases the production cost of the base body 7, and reduces production efficiency. Therefore, it is necessary to design a die-casting mold that can simultaneously form the adjustment groove 75 while forming the base body 7. Summary of the Invention

[0004] This application provides a die-casting mold for producing a motorcycle left mounting seat, which achieves integrated molding of the seat body and the adjustment groove by improving the mold structure.

[0005] This application provides a die-casting mold for producing a motorcycle left-side mounting bracket, which adopts the following technical solution: A die-casting mold for producing a left-side mounting bracket for motorcycles includes a lower mold body and a fixed mold plate. The fixed template is provided with a forming column one for forming a connecting hole, and the movable template is movably provided with a forming column two for forming an insertion hole and a forming column three for forming an assembly hole one. The movable template is also provided with a first driving mechanism for driving the forming column two to move and a second driving mechanism for driving the forming column three to move. During the mold closing process, the first driving mechanism and the second driving mechanism drive the forming column two and the forming column three to move closer to each other so that the forming column two and the forming column three abut against each other. A slider 1 is slidably connected to the moving template. The slider 1 is provided with two forming pillars 4 for forming assembly holes 2. The moving template is provided with a third driving mechanism for driving the slider 1 to slide. After the mold is opened, the third driving mechanism drives the slider 1 to slide so that the two forming pillars 4 move out of the seat. The moving template is slidably connected to slider two and slider three, and each of slider two and slider three has a plate on its side that is close to each other; the fixed template is provided with a fourth driving mechanism for driving slider two to slide and a fifth driving mechanism for driving slider three to slide. During the mold closing process, the fourth and fifth driving mechanisms drive sliders two and three to move closer to each other so that the two plates abut against each other to form a forming plate for forming the adjustment groove, and the two forming pillars four pass through the forming plate; when the mold opens, the fourth and fifth driving mechanisms drive sliders two and three to slide away from each other to release the adhesion between the two plates and the base.

[0006] By adopting the above technical solution, during mold closing, the fourth and fifth driving mechanisms drive sliders two and three to slide closer to each other, so that the two plates move closer together and finally abut against each other to form a molding plate, allowing the adjusting groove to be formed together during the die casting process of the base. After the base is die-cast, the mold opens. During the mold opening process, the fourth and fifth driving mechanisms drive sliders two and three to move away from each other, releasing the two plates from the base and facilitating the demolding of the base.

[0007] Preferably, the first driving mechanism includes a slider four slidably disposed on the moving template and a hydraulic cylinder one disposed on the moving template, the forming column two disposed on the slider four, and the telescopic shaft of the hydraulic cylinder one connected to the slider four; the second driving mechanism includes a slider five slidably disposed on the moving template and a hydraulic cylinder two disposed on the moving template, the forming column three disposed on the slider five, and the telescopic shaft of the hydraulic cylinder two connected to the slider five.

[0008] By adopting the above technical solution, the extension or retraction of the telescopic shaft of hydraulic cylinder one can control the movement of slider four and forming column two. The extension or retraction of the telescopic shaft of hydraulic cylinder two can control the movement of slider five and forming column three.

[0009] Preferably, the second forming column is rotatably connected to the fourth slider, and the third forming column is rotatably connected to the fifth slider. The third forming column is provided with an insert block, and the second forming column is provided with a slot for insertion and engagement with the insert block. When the third forming column rotates, the second forming column is driven to rotate via the insert block. The third forming column is provided with a mating arc surface adapted to the outer wall of the first forming column. The fifth slider is provided with a sixth driving mechanism for driving the third forming column to rotate, and the fourth slider is provided with a seventh driving mechanism for driving the second forming column to rotate. Before mold closing, the first and second driving mechanisms drive the second and third forming columns to move closer to each other, so that the second forming column and the third forming column abut against each other and the insert block is inserted into the slot. During mold closing, as the template moves, the mating arc surface on the third forming column presses against the first forming column, thereby driving the third forming column and the linked second forming column to rotate. During mold opening, the second forming column gradually moves away from the third forming column, and the sixth and seventh driving mechanisms jointly drive the third forming column and the second forming column to rotate and reset.

[0010] By adopting the above technical solution, after the mold opens, the moving platen will move away from the fixed platen, and the first forming column will separate from the third forming column. After the separation, the first forming column will no longer obstruct the third forming column from rotating back to its original position. The sixth and seventh drive mechanisms drive the third forming column and the second forming column to rotate, thereby eliminating the clamping force of the seat on the second forming column and the third forming column, making it easier for the second forming column and the third forming column to be pulled out of the mold.

[0011] Preferably, the sixth driving mechanism includes a torsion spring 1 disposed on the slider 5, one end of the torsion spring 1 being connected to the forming column 3, and the other end of the torsion spring 1 being connected to the slider 5. When the forming column 3 rotates forward, it presses against the torsion spring 1 to cause the torsion spring 1 to be twisted by force. The seventh driving mechanism includes a torsion spring 2 disposed on the slider 4, one end of the torsion spring 2 being connected to the forming column 2, and the other end of the torsion spring 2 being connected to the slider 4. When the forming column 2 rotates with the forming column 3, it presses against the torsion spring 2 to cause the torsion spring 2 to be twisted by force.

[0012] By adopting the above technical solution, during the mold closing process, the moving platen moves closer to the fixed platen. During this process, forming column one presses against the mating arc surface, causing forming column three and forming column two to rotate, and torsion spring one and torsion spring two to be torsionally stressed. During the mold opening process, forming column three moves away from forming column one along with the moving platen. Once forming column three is separated from forming column one, forming column one will no longer obstruct the rotation and reset of forming column three. Torsion spring one and torsion spring two will then rotate and drive forming column three and forming column two to rotate and reset.

[0013] Preferably, the third driving mechanism includes a hydraulic cylinder three mounted on the moving template, and the telescopic shaft of the hydraulic cylinder three is connected to the slider one.

[0014] By adopting the above technical solution, the extension or retraction of the telescopic shaft of the hydraulic cylinder three can control the sliding of the slider one.

[0015] Preferably, the forming column one has a receiving groove one for accommodating the slider two, and the fourth driving mechanism includes an inclined rod one disposed in the receiving groove one. The slider two has an inclined hole one that is inserted and engaged with the inclined rod one. During the mold closing process, the inclined rod one is inserted into the inclined hole one and drives the slider two to slide closer to the slider three, and the slider two enters the receiving groove one. After the mold is fully closed, the slider two is completely located in the receiving groove one and is assembled with the forming column one to form the connecting hole.

[0016] By adopting the above technical solution, during the mold closing process, slider two moves closer to forming pillar one following the movement of the moving template. During this process, the inclined rod one inserts into the inclined hole one, driving slider two to move closer to slider three. At the same time, slider two moves into receiving groove one. During the mold opening process, slider two moves away from forming pillar one following the movement of the moving template. During this process, the inclined rod one disengages from the inclined hole one and drives slider two to move away from slider three.

[0017] Preferably, the fifth driving mechanism includes a second inclined rod on a fixed template, and the third slider has a second inclined hole that engages with the second inclined rod. During the mold closing process, the second inclined rod is inserted into the second inclined hole and drives the third slider to slide closer to the second slider.

[0018] By adopting the above technical solution, during the mold closing process, slider three follows the moving template and moves closer to the fixed template. During this process, inclined rod two inserts into inclined hole two, driving slider three to move closer to slider two. During the mold opening process, slider three follows the moving template and moves away from the fixed template. During this process, inclined rod two disengages from inclined hole two and drives slider three to move away from slider two.

[0019] Preferably, both forming columns four are rotatably mounted on slider one, which is provided with two sets of eighth driving mechanisms. One set of eighth driving mechanisms is used to drive one forming column four to rotate. One plate is provided with a push plate and two receiving grooves two, which are located on both sides of the push plate. Both forming columns four are provided with mating parts. When the two plates move closer to each other, the push plate abuts against the two mating parts and pushes the two mating parts to rotate. Finally, the two plates wrap around the two mating parts, and the two mating parts move into the two receiving grooves two. When the two plates move away from each other, the push plate moves away from the two mating parts, and the two sets of eighth driving mechanisms drive the two forming columns four to rotate and reset.

[0020] By adopting the above technical solution, during the mold closing process, the two plates move closer to each other, and the push plate moves into the space between the two mating parts and abuts against them, thereby pushing the two mating parts and the two forming pillars to rotate in opposite directions, with one forming pillar rotating clockwise and the other counterclockwise. Finally, the two mating parts move into the two receiving grooves, which restrict the rotation and reset of the two mating parts. During the mold opening process, the two plates move away from each other, and the two mating parts disengage from the two receiving grooves. Without the restriction of the receiving grooves and the push plate, the two sets of eighth drive mechanisms drive the two forming pillars to rotate and reset, thereby eliminating the clamping force of the seat on the two forming pillars and facilitating the core pulling and demolding of the two forming pillars.

[0021] Preferably, the eighth driving mechanism includes a torsion spring three disposed on the slider one, one end of the torsion spring three being connected to the slider one, and the other end of the torsion spring three being connected to the forming column four. When the forming column four is pushed and rotated, it presses against the torsion spring three, so that the torsion spring three is subjected to torsion. By adopting the above technical solution, during the process of the two plates moving closer to each other, the push plate pushes the two mating parts and the two forming pillars four to rotate. The rotation of the two forming pillars four will press against the two torsion springs three, causing the two torsion springs three to be torsion. When the two plates move away from each other, the two receiving grooves two and the push plate will move away from the two mating parts, releasing the restriction on the rotation of the two mating parts. The two torsion springs three will then rotate, driving the two forming pillars four to rotate.

[0022] This application provides a manufacturing process for a left-side mounting bracket for motorcycles, employing the following technical solution: S1. Die-casting production of the base: The die-casting mold is hoisted onto the die-casting machine. The die-casting machine presses the hot molten metal into the die-casting mold to complete the die-casting of the base. After the base is die-cast, the die-casting machine controls the mold to open. The ejector pin on the die-casting mold pushes the base out of the lower mold body, completing the die-casting production of the base. S2. Polishing and deburring: The die-cast base is placed in a shot blasting machine for polishing to remove surface burrs; S3. Clamping and fixing of the seat: Place the polished seat into the fixture of the CNC machine tool, so that the end face of the seat is close to the limiting surface of the fixture, and place it into the fixture, align it, and press it to fix it. S4: Tapping and milling of the base: Use a machine tool to tap the first assembly hole and the two second assembly holes, and then mill the upper and lower end faces of the insertion hole. S5: Surface debris removal after machining of the base body: After the base body is machined, the technician controls the machine door to be half-open with the left hand, and takes an air gun with the right hand to blow away the machining debris on the base body. Then the machine door is fully opened, the clamps are released from the base body and the product is taken out. S6: Body Inspection: Inspect the corresponding characteristics of the product according to the self-inspection requirements to ensure that the appearance is free of missing materials, dents, and bumps, and that all machined holes are free of burrs.

[0023] The main technical effects of this invention are reflected in the following aspects: 1. This invention uses two plates, and controls the movement of the two plates to form the adjustment groove and release the adhesion between the two plates and the base. 2. In the mold opening process, the second forming column, the third forming column, and the two fourth forming columns will rotate relative to the base body, thereby releasing the adhesion between the four forming columns and the base body, making it easier to pull the core out of the mold. 3. The present invention transforms the mold opening and closing force into the driving force for sliding of slider two and slider three by cooperating with the first inclined rod and the first inclined hole, and the second inclined rod and the second inclined hole, thereby realizing the synchronization of the movement of the two plates and the mold. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the left mounting bracket.

[0025] Figure 2 yes Figure 1 Sectional view of the left-middle mounting bracket along line AA.

[0026] Figure 3 yes Figure 1 Sectional view of the left-middle mounting bracket along line BB.

[0027] Figure 4 This is a schematic diagram of the die-casting mold in the closed state.

[0028] Figure 5 yes Figure 4 Schematic diagram of the middle and lower mold body.

[0029] Figure 6 yes Figure 4 A schematic diagram of the structure of the central template.

[0030] Figure 7 yes Figure 6 A magnified view of a section at point C.

[0031] Figure 8 This is a structural diagram of the forming column 2, forming column 3, slider 4, slider 5, and base body in the mold closed state.

[0032] Figure 9 This is a schematic diagram of the mechanism of forming column one, forming column three, and slider five in the mold closed state.

[0033] Figure 10 This is a structural diagram of forming column three and slider five.

[0034] Figure 11 yes Figure 10 A schematic diagram of the structure of half of the slider, the fifth component, the third component, the third component, and the sixth component, the drive mechanism.

[0035] Figure 12 yes Figure 11 A structural schematic diagram of the middle component from another angle.

[0036] Figure 13 yes Figure 11 A schematic diagram of the structure of the third and sixth driving mechanisms of the middle forming column.

[0037] Figure 14 This is a structural diagram of forming column two and slider four.

[0038] Figure 15 This is a structural diagram of half of the slider four, forming column two, and the seventh driving mechanism.

[0039] Figure 16 yes Figure 15 A structural schematic diagram of the middle component from another angle.

[0040] Figure 17 yes Figure 16 A schematic diagram of the structure of the first and seventh driving mechanisms of the middle forming column.

[0041] Figure 18 This is a schematic diagram of the structure of a partially movable template, slider one, slider two, slider three, two forming columns four, and two plate bodies.

[0042] Figure 19 This is a schematic diagram of the molding column 1, slider 2, and base body in the mold closed state.

[0043] Figure 20 This is a schematic diagram of the structure of two plates: Block 1, Slider 2, Slider 3, Forming Column 4.

[0044] Figure 21 yes Figure 20 A cross-sectional view of the middle component along line DD.

[0045] Figure 22 yes Figure 20 Exploded view of the structure of the middle component.

[0046] Figure 23 yes Figure 20 A schematic diagram of the structure of the middle component after the mold is opened.

[0047] Figure 24 This is a structural diagram of a half-block slider, two forming columns, and two sets of eighth drive mechanisms.

[0048] Figure 25 yes Figure 24 A structural schematic diagram of the middle component from another angle.

[0049] Figure 26 This is a structural diagram of two molded columns (four) and two torsion springs (three).

[0050] Reference numerals: 1. Lower mold body; 11. Moving mold plate; 2. Fixed mold plate; 21. Forming pillar one; 211. Receiving groove one; 31. Forming pillar two; 32. Slot; 33. Forming pillar three; 331. Insert block; 332. Mating arc surface; 34. First drive mechanism; 341. Slider four; 342. Hydraulic cylinder one; 35. Second drive mechanism; 351. Slider five; 352. Hydraulic cylinder two; 36. Slider one; 37. Forming pillar four; 38. Third drive mechanism; 381. Hydraulic cylinder three; 39. Slider two; 391. Angled hole one ; 40. Slider 3; 401. Inclined Hole 2; 41. Plate; 411. Receiving Slot 2; 42. Fourth Drive Mechanism; 421. Inclined Rod 1; 43. Fifth Drive Mechanism; 431. Inclined Rod 2; 44. Forming Plate; 45. Sixth Drive Mechanism; 451. Torsion Spring 1; 46. Seventh Drive Mechanism; 461. Torsion Spring 2; 5. Eighth Drive Mechanism; 51. Torsion Spring 3; 61. Push Plate; 62. Mating Part; 7. Seat; 71. Insertion Hole; 72. Assembly Hole 1; 73. Connecting Hole; 74. Assembly Hole 2; 75. Adjustment Slot. Detailed Implementation

[0051] The present invention will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this application can be more easily understood and mastered.

[0052] Reference Figures 4-7 Example 1: A motorcycle left mounting bracket die-casting mold of this embodiment includes a lower mold body 1 and a fixed mold plate 2. The lower mold body 1 includes a movable mold plate 11, a lower fixed plate, two mold feet, two top plates, and several ejector pins disposed on the top plates. The fixed mold plate 2 is equipped with a forming post 21 for forming the connecting hole 73.

[0053] Reference Figure 5 The moving template 11 is movably provided with a second forming pillar 31 for forming the insertion hole 71 and a third forming pillar 33 for forming the assembly hole 72. The moving template 11 is also provided with a first driving mechanism 34 for driving the movement of the second forming pillar 31 and a second driving mechanism 35 for driving the movement of the third forming pillar 33. During mold closing, the first driving mechanism 34 and the second driving mechanism 35 drive the second forming pillar 31 and the third forming pillar 33 to move closer to each other, so that the second forming pillar 31 and the third forming pillar 33 abut against each other. After mold opening, the first driving mechanism 34 and the second driving mechanism 35 drive the second forming pillar 31 and the third forming pillar 33 to move further apart, so that the second forming pillar 31 and the third forming pillar 33 move away from each other and disengage from the base 7.

[0054] Reference Figure 5The first driving mechanism 34 includes a slider 341 slidably connected to the moving platen 11 along the mold opening direction perpendicular to the mold, and a hydraulic cylinder 342 mounted on the moving platen 11, the telescopic shaft of the hydraulic cylinder 342 being connected to the slider 341. The second driving mechanism 35 includes a slider 351 slidably connected to the moving platen 11 along the mold opening direction perpendicular to the mold, and a hydraulic cylinder 352 mounted on the moving platen 11, the telescopic shaft of the hydraulic cylinder 352 being connected to the slider 351.

[0055] Reference Figure 5 and Figure 8 Slider four 341 and slider five 351 are located between hydraulic cylinder one 342 and hydraulic cylinder two 352. Forming column two 31 is rotatably mounted on the end of slider four 341 facing away from hydraulic cylinder one 342, and can rotate around its axis. Forming column three 33 is rotatably connected to the end of slider five 351 facing away from hydraulic cylinder two 352, and can rotate around its axis. The axis of forming column two 31 is perpendicular to and intersects the axis of forming column three 33, and the axis of forming column one 21 is perpendicular to the axis of forming column three 33.

[0056] Reference Figures 5-9 The molding column 33 is equipped with an insert block 331, and the molding column 21 is equipped with a slot 32 that engages with the insert block 331. When the mold is closed, the molding column 33 and molding column 21 abut against each other, and the insert block 331 is inserted into the slot 32. When the molding column 33 rotates, it drives the molding column 21 to rotate as well via the insert block 331. The molding column 33 is equipped with an insert block 331 and a mating arc surface 332 that adapts to the outer wall of the molding column 21. During mold closing, as the moving template 11 moves, the mating arc surface 332 on the molding column 33 presses against the molding column 21, thereby driving the molding column 33 and the linked molding column 21 to rotate.

[0057] Figures 10-13 The slider 5 351 is equipped with a sixth drive mechanism 45 for driving the rotation of the forming column 3 33. The sixth drive mechanism 45 includes a torsion spring 451 mounted on the slider 5 351. The torsion spring 451 is sleeved on one end of the forming column 3 33 that extends into the slider 5 351. One end of the torsion spring 451 abuts against the forming column 3 33, and the other end of the torsion spring 451 is inserted into the slider 5 351. When the forming column 3 33 rotates clockwise, it presses against the torsion spring 451, causing the torsion spring 451 to be torsion. The slider 5 351 is a split design, consisting of two blocks connected by bolts, which facilitates the assembly of the torsion spring 451.

[0058] Reference Figure 14-17The slider 441 is equipped with a seventh drive mechanism 46 for driving the rotation of the forming column 2 31. The seventh drive mechanism 46 includes a torsion spring 2 461 mounted on the slider 441. The torsion spring 2 461 is sleeved on one end of the forming column 2 31 that extends into the slider 441. One end of the torsion spring 2 461 abuts against the forming column 2 31, and the other end of the torsion spring 2 461 is inserted into the slider 441. When the forming column 2 31 rotates with the forming column 3 33, it presses against the torsion spring 2 461, causing the torsion spring 2 461 to be torsiond. The slider 441 is also a split design, consisting of two blocks connected by bolts, which facilitates the assembly of the torsion spring 2 461.

[0059] Reference Figure 18 A slider 36 is slidably connected to the moving template 11, and two forming pillars 37 for forming assembly holes 74 are rotatably connected to the slider 36. The moving template 11 is provided with a third driving mechanism 38 for sliding the slider 36. The third driving mechanism 38 includes a hydraulic cylinder 381 on the moving template 11. The telescopic shaft of the hydraulic cylinder 381 is connected to the slider 36, and the slider 36 is located between the two forming pillars 37 and the hydraulic cylinder 381.

[0060] Reference Figure 5 , Figure 6 , Figure 18 The moving template 11 is slidably connected with slider 2 39 and slider 3 40, and each slider 2 39 and slider 3 40 is provided with a plate 41 on the side that is close to each other; the fixed template 2 is provided with a fourth driving mechanism 42 for driving slider 2 39 to slide and a fifth driving mechanism 43 for driving slider 3 40 to slide.

[0061] Reference Figure 5 , Figure 6 , Figure 18 , Figure 19 The forming column 21 has a receiving groove 211 for accommodating the slider 39. During the mold closing process, the slider 39 will move into the receiving groove 211. After the mold is fully closed, the slider 39 is completely located in the receiving groove 211 and is assembled with the forming column 21 to form the connecting hole 73.

[0062] Reference Figure 5 , Figure 6 , Figures 18-21The fourth drive mechanism 42 includes a first inclined rod 421 disposed in the receiving groove 211, and a second slider 39 having an inclined hole 391 that engages with the first inclined rod 421. The fifth drive mechanism 43 includes a second inclined rod 431 disposed on the fixed template 2, and a third slider 40 having an inclined hole 401 that engages with the second inclined rod 431. During the mold closing process, the first inclined rod 421 and the second inclined rod 431 are respectively inserted into the first inclined hole 391 and the second inclined hole 401, driving the second slider 39 and the third slider 40 to move closer to each other, so that the two plates 41 move closer to each other and finally abut against each other to form the forming plate 44 for forming the adjusting groove 75.

[0063] Reference Figures 20-22 The plate 41 located on slider 3 40 is equipped with a push plate 61 and two receiving grooves 411, which are located on both sides of the push plate 61. The push plate 61 has an arc-shaped end face on the side near slider 39. Both forming pillars 4 37 are equipped with mating parts 62, which are square pillars. When the mold is not closed, the side walls of the two mating parts 62 are located on the movement path of the push plate 61.

[0064] Reference Figures 20-23 During the mold closing process, the two plates 41 move closer to each other. During this process, the push plate 61 moves between the two mating parts 62. The arc-shaped end face of the push plate 61 collides with the side walls of the two mating parts 62, thereby pushing the two mating parts 62 and the two forming pillars 37 to rotate in opposite directions. One forming pillar 37 rotates clockwise, and the other rotates counterclockwise. After rotating a certain angle, the two mating parts 62 are respectively aligned with the two receiving grooves 411. Subsequently, as the two plates 41 gradually move closer, the two mating parts 62 will also gradually enter the two receiving grooves 411.

[0065] Reference Figure 20 , Figures 24-26 The slider 36 is equipped with two sets of eighth drive mechanisms 5. One set of eighth drive mechanisms 5 is used to drive the rotation of one forming column 37. Each set of eighth drive mechanisms 5 includes a torsion spring 51 mounted on the slider 36. Two torsion springs 51 are respectively sleeved on the ends of the two forming columns 37 that extend into the slider 36. One end of each torsion spring 51 is inserted into the slider 36, and the other end is connected to the two forming columns 37. When the two forming columns 37 are pushed and rotated, they press against the two torsion springs 51, causing the two torsion springs 51 to be torsionally twisted. The slider 39 is also a split design, consisting of two blocks connected by bolts, which facilitates the assembly of the two torsion springs 51.

[0066] The complete die-casting demolding process of the base 7 in this application is as follows: Before the mold closes, the telescopic shafts of cylinder 1 (342) and cylinder 2 (352) extend, driving slider 4 (341) and slider 5 (351) to move closer to each other, ultimately causing forming pillar 2 (31) to abut against forming pillar 3 (33) and insert block (331) into slot (32). The telescopic shaft of cylinder 3 (381) also extends, driving slider 1 (36) and the two forming pillars 4 (37) to move and reset.

[0067] Next, the die-casting machine controls the mold to close, causing the lower mold body 1 to move closer to the upper mold body. During the mold closing process, the first forming column 21 presses against the mating arc surface 332 to drive the third forming column 33 and the second forming column 31 to rotate. When the third forming column 33 rotates clockwise, it presses against the first torsion spring 451, causing the first torsion spring 451 to be torsion. When the second forming column 31 rotates with the third forming column 33, it presses against the second torsion spring 461, causing the second torsion spring 461 to be torsion.

[0068] Simultaneously, during the mold closing process, inclined rod 1 421 and inclined rod 2 431 are inserted into inclined holes 1 391 and 2 401 respectively, driving slider 2 39 and slider 3 40 to move closer to each other, so that the two plates 41 move closer to each other. When the two plates 41 move closer to each other, the push plate 61 moves into the space between the two mating parts 62. The arc-shaped end face on the push plate 61 collides with the side walls of the two mating parts 62, thereby pushing the two mating parts 62 and the two forming pillars 4 37 to rotate in opposite directions. One forming pillar 4 37 rotates clockwise, and the other forming pillar 4 37 rotates counterclockwise. When the two forming pillars 4 37 rotate, they will press against the two torsion springs 3 51, causing the two torsion springs 3 51 to be twisted. After the two mating parts 62 rotate a certain angle, they are respectively facing the two receiving grooves 2 411.

[0069] Subsequently, as the two plates 41 gradually move closer together, the two mating parts 62 will also gradually enter the two receiving grooves 411. The two plates 41 will then abut against each other to form a forming plate 44 for forming the adjusting groove 75. After the mating parts 62 are inserted into the two receiving grooves 411, the receiving grooves 411 will restrict the rotation and reset of the two mating parts 62.

[0070] Finally, the mold is closed, and the curved surface 332 is fitted to form the molding column 21. The slider 39 is completely located in the receiving groove 211 and together with the molding column 21, the connecting hole 73 is formed. The two plates 41 abut against each other to form the molding plate 44 for forming the adjustment groove 75. The two plates 41 wrap around the two mating parts 62.

[0071] Then, the die-casting machine presses molten metal into the forming cavity between the fixed mold plate 2 and the moving mold plate 11 to complete the forming of the base body 7. After the base body 7 is die-cast, the die-casting machine controls the mold to open so that the lower mold body 1 moves away from the upper mold body.

[0072] During the mold opening process, due to the inverted structure of the forming pillar 2 31, forming pillar 33, two forming pillars 4 37 and the base body 7, the base body 7 will move away from the upper mold body along with the lower mold body 1. As a result, the forming pillar 1 21 will be pulled out from the base body 7 during the mold opening process, thus severing the connection between the base body 7 and the forming pillar 1 21.

[0073] When molding column 1 21 detaches from the base 7, molding column 1 21 also moves away from molding column 33. During this process, molding column 1 21 gradually releases the rotation restriction on molding column 33. Torsion spring 1 451 and torsion spring 2 461 will rotate and drive molding column 33 and molding column 2 31 to rotate and reset, so as to eliminate the clamping force of base 7 on molding column 2 31 and molding column 33, making molding column 2 31 and molding column 33 easier to pull out the core and demold.

[0074] During the mold opening process, sliders 2 (39) and 3 (40) follow the moving template 11 and move away from the fixed template 2. During this process, the inclined rod 1 (421) disengages from the inclined hole 1 (391) and the inclined rod 2 (431) disengages from the inclined hole 2 (401), driving sliders 2 (39) and 3 (40) to move away from each other, so as to eliminate the adhesion between the two plates 41 and the base 7.

[0075] When sliders 2 (39) and 3 (40) move away from each other, they will cause the two plates 41 to move away from each other. During the process of the two plates 41 moving away from each other, the two mating parts 62 first move out of the two receiving grooves 2 (411). Then, the push plate 61 will gradually move out between the two mating parts 62. During this process, the restriction of the push plate 61 on the rotation of the two mating parts 62 will gradually be released. The two torsion springs 3 (51) will gradually rotate and drive the two forming pillars 4 (37) to rotate, eliminating the clamping force of the seat 7 on the two forming pillars 4 (37), which facilitates the core pulling and demolding of the two forming pillars 4 (37).

[0076] After the mold is fully opened, the telescopic shafts of cylinders 342, 352, and 381 retract, driving sliders 36, 341, and 351 to slide away from the base 7, causing cores 31, 33, and 37 to be pulled out of the base 7. Then, the die-casting machine controls the two top plates to move closer to the moving template 11, so that multiple ejector pins push the base 7 out of the moving template 11, completing the demolding of the base 7.

[0077] Example 2: A manufacturing process for a motorcycle left mounting bracket in this example includes the following steps.

[0078] S1. Die-casting production of seat 7: The die-casting mold is hoisted onto the die-casting machine. The die-casting machine presses the hot molten metal into the die-casting mold to complete the die-casting of seat 7. After the seat 7 is die-cast, the die-casting machine controls the mold to open. The ejector pin on the die-casting mold pushes the seat 7 out of the lower mold body 1, completing the die-casting production of seat 7.

[0079] S2. Polishing and deburring: Place the die-cast base 7 into a shot blasting machine for polishing to remove surface burrs.

[0080] S3. Clamping and fixing of seat 7: Place the polished seat 7 into the fixture of the CNC machine tool, so that the end face of the seat 7 is in close contact with the tooling limit surface, and place it into the tooling, align it, and press it to fix it.

[0081] S4: Tapping and milling of the base 7: Use a machine tool to tap the first assembly hole 72 and the two second assembly holes 74, and then mill the upper and lower end faces of the insertion hole 71.

[0082] S5: Surface debris removal after machining of base body 7: After the base body 7 is machined, the technician controls the machine door to be half-open with the left hand, and takes an air gun with the right hand to blow away the machining debris on the base body 7. Then the machine door is fully opened, the clamps are released from the base body 7, and the product is taken out.

[0083] S6: 7 Inspection of the base body: Inspect the corresponding characteristics of the product according to the self-inspection requirements to ensure that the appearance is free of missing materials, dents, and bumps, and that all machined holes are free of burrs.

[0084] Of course, the above are just typical examples of this application. In addition, this application may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed in this application.

Claims

1. A die-casting mold for producing a left-side mounting bracket for a motorcycle, comprising a lower mold body (1) and a fixed mold plate (2), characterized in that: The fixed template (2) is provided with a forming column 1 (21) for forming the connecting hole (73), and the movable template (11) is movably provided with a forming column 2 (31) for forming the insertion hole (71) and a forming column 3 (33) for forming the assembly hole 1 (72). The movable template (11) is also provided with a first driving mechanism (34) for driving the forming column 2 (31) to move and a second driving mechanism (35) for driving the forming column 3 (33) to move. During the mold closing process, the first driving mechanism (34) and the second driving mechanism (35) drive the forming column 2 (31) and the forming column 3 (33) to move closer to each other so that the forming column 2 (31) and the forming column 3 (33) abut against each other. The moving template (11) is slidably connected to a slider (36), and the slider (36) is provided with two forming pillars (37) for forming assembly holes (74). The moving template (11) is provided with a third driving mechanism (38) for driving the slider (36) to slide. After the mold is opened, the third driving mechanism (38) drives the slider (36) to slide so that the two forming pillars (37) move out of the seat (7). The moving template (11) is slidably connected to slider two (39) and slider three (40), and each of the slider two (39) and slider three (40) is provided with a plate (41) on the side that is close to each other; the fixed template (2) is provided with a fourth driving mechanism (42) for driving slider two (39) to slide and a fifth driving mechanism (43) for driving slider three (40) to slide; During the mold closing process, the fourth driving mechanism (42) and the fifth driving mechanism (43) drive the second slider (39) and the third slider (40) to move closer to each other so that the two plates (41) abut against each other to form a forming plate (44) for forming the adjustment groove (75), and the two forming pillars (37) pass through the forming plate (44); when the mold opens, the fourth driving mechanism (42) and the fifth driving mechanism (43) drive the second slider (39) and the third slider (40) to slide away from each other so as to release the adhesion between the two plates (41) and the base (7).

2. The die-casting mold for producing a motorcycle left mounting bracket according to claim 1, characterized in that: The first driving mechanism (34) includes a slider four (341) slidably disposed on the moving template (11) and a hydraulic cylinder one (342) disposed on the moving template (11). The forming column two (31) is disposed on the slider four (341), and the telescopic shaft of the hydraulic cylinder one (342) is connected to the slider four (341). The second driving mechanism (35) includes a slider five (351) slidably disposed on the moving template (11) and a hydraulic cylinder two (352) disposed on the moving template (11). The forming column three (33) is disposed on the slider five (351), and the telescopic shaft of the hydraulic cylinder two (352) is connected to the slider five (351).

3. The die-casting mold for producing a motorcycle left mounting bracket according to claim 2, characterized in that: The second forming column (31) is rotatably connected to the fourth slider (341), and the third forming column (33) is rotatably connected to the fifth slider (351). The third forming column (33) is provided with an insert (331), and the second forming column (31) is provided with a slot (32) for inserting and engaging with the insert (331). When the third forming column (33) rotates, it drives the second forming column (31) to rotate through the insert (331). The third forming column (33) is provided with a mating arc surface (332) that is adapted to the outer wall of the first forming column (21). The fifth slider (351) is provided with a sixth driving mechanism (45) for driving the third forming column (33) to rotate, and the fourth slider (341) is provided with a seventh driving mechanism (46) for driving the second forming column (31) to rotate. Before mold closing, the first drive mechanism (34) and the second drive mechanism (35) drive the second forming column (31) and the third forming column (33) to move closer to each other, so that the second forming column (31) and the third forming column (33) abut against each other and the insert block (331) is inserted into the slot (32); during the mold closing process, the moving template (11) moves, and the mating arc surface (332) on the third forming column (33) presses against the first forming column (21), thereby driving the third forming column (33) and the second forming column (31) linked with it to rotate; during the mold opening process, the second forming column (31) gradually moves away from the third forming column (33), and the sixth drive mechanism (45) and the seventh drive mechanism (46) jointly drive the third forming column (33) and the second forming column (31) to rotate and reset.

4. The die-casting mold for producing a motorcycle left mounting bracket according to claim 3, characterized in that: The sixth driving mechanism (45) includes a torsion spring 1 (451) disposed on slider 5 (351). One end of the torsion spring 1 (451) is connected to the forming column 3 (33), and the other end of the torsion spring 1 (451) is connected to slider 5 (351). When the forming column 3 (33) rotates forward, it presses against the torsion spring 1 (451) to make the torsion spring 1 (451) be twisted by force. The seventh driving mechanism (46) includes a torsion spring 2 (461) disposed on slider 4 (341). One end of the torsion spring 2 (461) is connected to the forming column 2 (31), and the other end of the torsion spring 2 (461) is connected to slider 4 (341). When the forming column 2 (31) rotates with the forming column 3 (33), it presses against the torsion spring 2 (461) to make the torsion spring 2 (461) be twisted by force.

5. The die-casting mold for producing a motorcycle left mounting bracket according to claim 1, characterized in that: The third driving mechanism (38) includes a hydraulic cylinder three (381) mounted on the moving template (11), and the telescopic shaft of the hydraulic cylinder three (381) is connected to the slider one (36).

6. The die-casting mold for producing a motorcycle left mounting bracket according to claim 1, characterized in that: The forming column (21) is provided with a receiving groove (211) for accommodating the slider (39). The fourth driving mechanism (42) includes a slanted rod (421) disposed in the receiving groove (211). The slider (39) is provided with a slanted hole (391) that is inserted into the slanted rod (421). During the mold closing process, the slanted rod (421) is inserted into the slanted hole (391) and drives the slider (39) to slide close to the slider (40). The slider (39) enters the receiving groove (211). After the mold is fully closed, the slider (39) is completely located in the receiving groove (211) and is assembled with the forming column (21) to form the connecting hole (73).

7. The die-casting mold for producing a motorcycle left mounting bracket according to claim 1, characterized in that: The fifth driving mechanism (43) includes a second inclined rod (431) on the fixed template (2), and a third slider (40) is provided with a second inclined hole (401) that is inserted into the second inclined rod (431). During the mold closing process, the second inclined rod (431) is inserted into the second inclined hole (401) and drives the third slider (40) to slide closer to the second slider (39).

8. The die-casting mold for producing a motorcycle left mounting bracket according to claim 1, characterized in that: Both of the two forming columns (37) are rotatably mounted on the slider (36). The slider (36) is provided with two sets of eighth drive mechanisms (5). One set of eighth drive mechanisms (5) is used to drive one forming column (37) to rotate. One plate (41) is provided with a push plate (61) and two receiving grooves (411). The two receiving grooves (411) are located on both sides of the push plate (61). Both forming columns (37) are provided with mating parts (62). During the process of the plates (41) moving closer to each other, the push plate (61) abuts against the two mating parts (62) and pushes the two mating parts (62) to rotate. Finally, the two plates (41) wrap around the two mating parts (62), and the two mating parts (62) move into the two receiving grooves (411). When the two plates (41) move away from each other, the push plate (61) moves away from the two mating parts (62), and the two sets of eighth drive mechanisms (5) drive the two forming columns (37) to rotate and reset.

9. A die-casting mold for producing a motorcycle left mounting bracket according to claim 8, characterized in that: The eighth driving mechanism (5) includes a torsion spring three (51) disposed on the slider one (36). One end of the torsion spring three (51) is connected to the slider one (36), and the other end of the torsion spring three (51) is connected to the forming column four (37). When the forming column four (37) is pushed to rotate, it presses against the torsion spring three (51) so that the torsion spring three (51) is subjected to force and twisting.

10. A manufacturing process for a left-side mounting bracket for motorcycles, characterized in that: S1. Die casting production of seat (7): The die casting mold described in any one of claims 1-9 is hoisted onto the die casting machine. The die casting machine injects hot molten metal into the die casting mold to complete the die casting of the seat (7). After the seat (7) is die cast, the die casting machine controls the mold to open. The ejector pin on the die casting mold ejects the seat (7) from the lower mold body (1) to complete the die casting production of the seat (7). S2. Polishing and deburring: The die-cast base (7) is placed in a shot blasting machine for polishing to remove surface burrs; S3. Clamping and fixing of the seat (7): Place the polished seat (7) into the fixture of the CNC machine tool, so that the end face of the seat (7) is close to the tooling limit surface, and place it into the tooling, align it, and press it to fix it. S4: Tapping and milling of the base (7): Use a machine tool to tap the first assembly hole (72) and the two second assembly holes (74), and then mill the upper and lower end faces of the insertion hole (71). S5: Surface chip removal after machining of seat body (7): After the seat body (7) is machined, the technician controls the machine door to be half open with the left hand, and the technician takes the air gun with the right hand to blow away the machining chips on the seat body (7). Then the machine door is fully opened, the clamps are released from the seat body (7), and the product is taken out. S6: Seat (7) Inspection: Inspect the corresponding characteristics of the product according to the self-inspection requirements, and ensure that there are no missing materials, no indentations or bumps on the appearance, and that all machined holes are free of burrs.

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