A stamping die for a diaphragm

Abstract

The present invention relates to the field of diaphragm production technology, and specifically to a diaphragm stamping die, including a controller and a fixed seat, wherein a mounting groove is provided inside the fixed seat, a mounting plate is fixedly installed on the inner side wall of the mounting groove, a mounting cavity is provided inside the fixed seat and below the mounting groove, a cooling assembly is provided in the mounting groove and the mounting cavity, four groups of mold assemblies are fixedly installed on the top side of the fixed seat, the four groups of mold assemblies are arranged in a circular array, a support column is rotatably installed on the inner bottom wall of the mounting groove, and the top of the support column passes through the mounting plate and the top wall of the mounting groove. In the present invention, after the diaphragm is stamped, the negative pressure of the vacuum generator can adsorb and limit the stamped diaphragm on the lower die through the first connecting pipe and the negative pressure pipe, etc., to prevent it from being deformed due to the temperature difference between it and the air, and to cool down the residual heat of the diaphragm, thereby ensuring the production quality of the diaphragm.

Description

Technical Field

[0001] The invention relates to the technical field of diaphragm production, and in particular to a stamping die for a diaphragm. Background Art

[0002] As a key elastic sensitive component, diaphragm is widely used in many industries such as machinery, electroacoustics, filtration isolation and optics. It has various forms and materials, and is not only used for pressure sensing and flow control, but also involves sound transmission, medium purification and optical processing.

[0003] During the production of the diaphragm, in order to increase the flexibility of the diaphragm so that it can better adapt to dynamic changes, it is necessary to punch the required grooves on the diaphragm, such as a Chinese patent with patent publication number CN111922181A that discloses an efficient stamping production device for stethoscope diaphragms.

[0004] In order to improve the plasticity and ductility of the material, so that the diaphragm is easier to form during the stamping process and reduce the stress concentration and fracture risk of the material, the existing technology needs to be heated by a hot air furnace or an electric heating plate before being stamped. The heated diaphragm is more convenient for stamping and can be directly taken out after the stamping. However, since the diaphragm after stamping still has residual temperature, if the diaphragm that has not been completely cooled at this time is directly unloaded, there is a significant temperature gradient between the diaphragm that has not been completely cooled and the surrounding cold air. This temperature difference will cause uneven stress distribution inside the diaphragm material. As the temperature gradually decreases, the material will undergo a thermal shrinkage process, but due to the different cooling speeds of each part, the shrinkage force generated is also different, which will cause the shape of the diaphragm to change, which is the so-called "thermal deformation". This deformation may be local bending, twisting or a slight deviation of the overall size. For stamping parts with high precision requirements, these deformations are unacceptable. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a stamping die for a diaphragm, which can effectively solve the problem of poor stamping effect and reduced stamping quality due to the diaphragm not being cooled and shaped before being cut after stamping in the prior art.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The present invention provides a stamping die for a diaphragm, comprising a controller and a fixed seat, wherein a mounting groove is provided inside the fixed seat, a mounting plate is fixedly installed on the inner side wall of the mounting groove, a mounting cavity is further provided inside the fixed seat and below the mounting groove, a cooling assembly is commonly provided in the mounting groove and the mounting cavity, four groups of die assemblies are fixedly installed on the top side of the fixed seat, the four groups of die assemblies are arranged in a circular array, a support column is rotatably installed on the inner bottom wall of the mounting groove, the top of the support column passes through the mounting plate and the top wall of the mounting groove, a stamping assembly is commonly provided on the mounting groove and the support column, an adjustment assembly is commonly provided on the mounting plate and the support column, and the stamping assembly is transmission-connected to the adjustment assembly.

[0008] Preferably, the cooling assembly includes a vacuum generator fixedly installed in the installation cavity, the vacuum suction port of the vacuum generator is fixedly connected to a first connecting pipe, a negative pressure pipe is fixedly installed on the top of the installation plate, an end of the first connecting pipe away from the vacuum generator is fixedly connected to the negative pressure pipe, the top of the negative pressure pipe is fixedly connected to four main limiting pipes, the top of the installation plate is respectively fixedly installed with connecting blocks corresponding to the main limiting pipes, an adjusting groove is opened on the connecting block, the main limiting pipe is fixedly connected to the bottom of the adjusting groove, and the top of the adjusting groove is respectively fixedly connected to the negative pressure pipe. A slave limit tube corresponding to each main limit tube is fixedly connected, the air outlet of the vacuum generator is fixedly connected to a second connecting tube, an air outlet pipe is fixedly installed on the top of the mounting plate, the end of the second connecting tube away from the vacuum generator is fixedly connected to the air outlet pipe, the top of the air outlet pipe is fixedly connected to four main blowing pipes, the top of the main blowing pipe is fixedly connected to the corresponding adjusting groove, the top of the adjusting groove is respectively fixedly connected to the slave blowing pipe corresponding to each main blowing pipe, the slave limit tube and the top of the slave blowing pipe are both fixedly connected to the corresponding mold assembly.

[0009] Preferably, the mold assembly includes a lower mold fixedly mounted on the top side of the fixed seat, the top side of the lower mold is provided with a placement groove, the interior of the lower mold is provided with a placement groove, the inner side wall of the placement groove is provided with four limiting slide grooves, the four limiting slide grooves are distributed in a ring array, a supporting magnetic block is slidingly installed in the limiting slide groove, a plurality of the supporting magnetic blocks are commonly fixedly connected with a support frame, a plurality of connecting columns are fixedly connected to the top of the support frame, a sealing sheet is fixedly installed on the top of the connecting column, a cooling hole compatible with each sealing sheet is provided on the top of the lower mold, a spring is fixedly installed on the top of the supporting magnetic block, and the top of the spring is fixedly connected to the inner top wall of the placement groove.

[0010] Preferably, the stamping assembly includes a motor fixedly mounted on the bottom wall of the mounting groove, a missing gear fixedly mounted on the output end of the motor, an adjusting gear meshing with or disengaging from the missing gear fixedly mounted on the outer side of the support column, the number of teeth of the missing gear is one-fourth of the adjusting gear, a connecting plate fixedly mounted on the top of the support column, a cylinder fixedly mounted on the top of the connecting plate at one end away from the support column, the telescopic end of the cylinder movably passes through the connecting plate and is fixedly connected to an upper mold, and the upper mold is placed directly above the lower mold, and an adjusting magnetic block matching the supporting magnetic block is fixedly mounted inside the upper mold.

[0011] Preferably, the adjustment assembly includes a fixing ring fixedly mounted on the outer side of the support column, an adjustment plate fixedly mounted on the outer side of the fixing ring, the adjustment plate is placed directly below the connecting plate, the end of the adjustment plate away from the fixing ring is matched with the adjustment groove, a main adjustment ring is fixedly mounted on the adjustment plate, the main adjustment ring is matched with the main limiting tube and the slave limiting tube, a main adjustment through groove is provided on the main adjustment ring, a slave adjustment ring is fixedly mounted on the end of the adjustment plate away from the fixing ring, the slave adjustment ring is matched with the main blowing tube and the slave blowing tube, and a slave adjustment through groove is provided on the slave adjustment ring.

[0012] Preferably, the bottom walls of the fixing ring and the adjustment plate are in contact with the bottom wall of the mounting plate, the main adjustment slot and the slave adjustment slot each occupy half the area of ​​the corresponding main adjustment ring or slave adjustment ring, and the main adjustment slot and the slave adjustment slot are respectively arranged on both sides of the adjustment plate.

[0013] Preferably, one end of the air outlet pipe away from the second connecting pipe is fixedly connected to an air leakage pipe, and a flow valve is fixedly installed on the air leakage pipe.

[0014] Preferably, a position sensor is provided inside the adjustment plate, and the position sensor and the cylinder are electrically connected to the controller.

[0015] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects:

[0016] 1. After the missing gear, the adjustment gear and the support column are driven by the motor to rotate to the top of the corresponding lower mold, the cylinder drives the upper mold to punch the diaphragm placed on the lower mold with the cooperation of the position sensor and the controller. After the punching is completed, as the upper mold moves up and the missing gear continues to rotate, the adjustment plate also drives the main adjustment ring and the slave adjustment ring to rotate together. After the main adjustment ring rotates 90°, the main adjustment groove is placed between the main limit tube and the slave limit tube corresponding to the previous lower mold, so that the main limit tube and the slave limit tube are connected, so that the negative pressure of the vacuum generator can be adsorbed and limited on the punched diaphragm on the lower mold through the first connecting tube and the negative pressure tube, so as to maintain the shape after punching, prevent it from being deformed due to the temperature difference between it and the air, and take away the residual heat of the diaphragm to cool the diaphragm and ensure the production quality of the diaphragm;

[0017] 2. When the connecting plate, cylinder and upper mold rotate 180° relative to the lower mold, the main adjusting ring re-seals the main limit tube and the slave limit tube, and the negative pressure of the vacuum generator no longer acts on the diaphragm. At this time, the slave adjusting slot is rotated to between the main blowing tube and the slave blowing tube, so that the two are connected. The vacuum generator blows the diaphragm on the lower mold through the air generated by the second connecting tube and the air outlet pipe, so that the diaphragm is no longer completely fitted with the lower mold, which assists the diaphragm in unloading and improves the production efficiency of the diaphragm.

[0018] To sum up, according to the present invention, after the diaphragm placed on the lower die is stamped by the upper die, the main adjustment groove and the slave adjustment groove opened on the main adjustment ring and the slave adjustment ring are driven to change position through the continued rotation of the missing gear, the adjusting gear and the supporting column, so that the negative pressure generated by the vacuum generator can adsorb the stamped diaphragm on the upper die through the main limiting tube and the slave limiting tube, and overcome the thermal stress by providing adsorption force to prevent the diaphragm from deforming due to contact with the air. At the same time, the negative pressure of the vacuum generator can also take away the residual heat on the diaphragm, so that the diaphragm is cooled. After the diaphragm is cooled, the main limiting tube and the slave limiting tube are no longer connected with the rotation of the supporting column, and the vacuum generator blows the diaphragm on the lower die through the air generated by the second connecting tube and the air outlet pipe, so that the diaphragm is no longer completely fitted with the lower die, and the manipulator is assisted in unloading the diaphragm, thereby achieving the effect of "one gas and three uses", namely negative pressure adsorption, cooling and auxiliary unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

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

[0021] Figure 2 It is a schematic diagram of the main cross-sectional structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the front cross-sectional structure of the fixing seat and the mounting plate of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the cooling assembly of the present invention;

[0024] Figure 5 It is a structural schematic diagram of the mold assembly of the present invention;

[0025] Figure 6 It is a schematic diagram of the main cross-sectional structure of the lower mold of the present invention;

[0026] Figure 7 It is a structural schematic diagram of the support column, stamping assembly and main adjustment ring of the present invention;

[0027] Figure 8 It is a structural schematic diagram of the regulating assembly of the present invention;

[0028] Fig. 9 It is a structural schematic diagram of the main limit tube, the connecting block and the slave blowing tube of the present invention;

[0029] Fig.10 This is a diagram showing the state changes of the main adjustment slot when the adjustment plate and the main adjustment ring of the present invention rotate.

[0030] Reference numerals: 1, fixing seat; 2, mounting groove; 3, mounting plate; 4, mounting cavity; 5, cooling assembly; 51, vacuum generator; 52, first connecting pipe; 53, negative pressure pipe; 54, main limiting pipe; 55, connecting block; 56, adjusting groove; 57, secondary limiting pipe; 58, second connecting pipe; 581, air outlet pipe; 582, air release pipe; 583, flow valve; 59, main blowing pipe; 510, secondary blowing pipe; 6, mold assembly; 61, lower mold; 62, placement groove; 63 , placement groove; 64, limiting slide groove; 65, supporting magnet; 66, supporting frame; 67, connecting column; 68, sealing plate; 69, cooling hole; 610, spring; 7, supporting column; 8, stamping assembly; 81, motor; 82, missing gear; 83, adjusting gear; 84, connecting plate; 85, cylinder; 86, upper mold; 9, adjusting assembly; 91, fixing ring; 92, adjusting plate; 93, main adjusting ring; 94, main adjusting slot; 95, slave adjusting ring; 96, slave adjusting slot. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] The present invention will be further described below in conjunction with the embodiments.

[0033] Example: Refer to Figures 1 to 10 , a stamping die for a diaphragm, comprising a controller and a fixed seat 1, wherein a mounting groove 2 is provided inside the fixed seat 1, a mounting plate 3 is fixedly installed on the inner side wall of the mounting groove 2, a mounting cavity 4 is provided inside the fixed seat 1 and below the mounting groove, a cooling assembly 5 is provided in the mounting groove 2 and the mounting cavity 4, four groups of die assemblies 6 are fixedly installed on the top side of the fixed seat 1, the four groups of die assemblies 6 are arranged in a ring array, the die assembly 6 is used to place the diaphragm, and the cooling assembly 5 is used to cool the diaphragm after stamping, a support column 7 is rotatably installed on the inner bottom wall of the mounting groove 2, the top of the support column 7 passes through the mounting plate 3 and the top wall of the mounting groove 2, a stamping assembly 8 is provided on the mounting groove 2 and the support column 7, an adjusting assembly 9 is provided on the mounting plate 3 and the support column 7, the stamping assembly 8 is transmission-connected with the adjusting assembly 9, the diaphragm to be stamped is supported by the stamping assembly 8, and the adjusting assembly 9 is used to cooperate with the stamping assembly 8 to stamp the diaphragm;

[0034] The cooling assembly 5 includes a vacuum generator 51 fixedly installed in the installation cavity 4, the air inlet of the vacuum generator 51 is circulated with the outside air through the air inlet pipe, the vacuum suction port of the vacuum generator 51 is fixedly connected with a first connecting pipe 52, a negative pressure pipe 53 is fixedly installed on the top of the installation plate 3, one end of the first connecting pipe 52 away from the vacuum generator 51 is fixedly connected with the negative pressure pipe 53, four main limit pipes 54 are fixedly installed on the top of the negative pressure pipe 53, and connecting blocks 55 corresponding to each main limit pipe 54 are fixedly installed on the top of the installation plate 3, and adjusting grooves 56 are opened on the connecting blocks 55, the main limit pipes 54 are fixedly connected with the bottom of the adjusting grooves 56, and the tops of the adjusting grooves 56 are fixedly connected with the corresponding slave pipes 54 The limiting pipe 57 and the air outlet of the vacuum generator 51 are fixedly connected with the second connecting pipe 58, the top of the mounting plate 3 is fixedly installed with an air outlet pipe 581, the end of the air outlet pipe 581 away from the second connecting pipe 58 is fixedly connected with an air release pipe 582, the air release pipe 582 is fixedly installed with a flow valve 583, the end of the second connecting pipe 58 away from the vacuum generator 51 is fixedly connected with the air outlet pipe 581, the top of the air outlet pipe 581 is fixedly connected with four main blowing pipes 59, the top of the main blowing pipe 59 is fixedly connected with the corresponding adjusting groove 56, the top of the adjusting groove 56 is respectively fixedly connected with the slave blowing pipe 510 corresponding to each main blowing pipe 59, the top of the limiting pipe 57 and the slave blowing pipe 510 are fixedly connected with the corresponding mold assembly 6;The vacuum generator 51 is a new, efficient, clean, economical, and small vacuum component that uses a positive pressure gas source to generate negative pressure. Its working principle is to use the dynamics of gas flow to create an area below the ambient pressure, thereby realizing functions such as adsorption, transportation, or air removal of objects. Before stamping, the diaphragm is preheated by an electric heating plate, and then the heated diaphragm is placed on the mold assembly 6 by a manipulator. During stamping, each group of main limit tubes 54 and slave limit tubes 57 and each group of main blowing tubes 59 and slave blowing tubes 510 are connected or sealed under the action of the adjustment component 9. When the diaphragm on one of the mold assemblies 6 is stamped by the stamping assembly 8, under the action of the adjustment component 9, the corresponding main limit tube 54 is connected to the slave limit tube 57. The negative pressure generated by the vacuum generator 51 passes through the first connecting tube 52 and the negative pressure tube 53 and the main limit tube 54 and the slave limit tube 57 to make the corresponding diaphragm adsorbed on the mold assembly 6, and at the same time, the residual heat on the diaphragm is taken away to assist the diaphragm in heat dissipation. , to prevent the diaphragm from being deformed due to direct uncooling and shaping, after it is cooled and shaped, the corresponding main blowing pipe 59 and the slave blowing pipe 510 are connected through the cooperation of the adjusting component 9, and the main limiting pipe 54 and the slave limiting pipe 57 that are connected are sealed. The diaphragm without negative pressure limiting is placed on the mold assembly 6, but it is inconvenient to unload it because it is completely fitted with the mold assembly 6. At this time, the gas generated by the outlet of the vacuum generator 51 flows to the outlet through the main blowing pipe 59. The diaphragm on the corresponding mold assembly 6 is blown upward through the main blowing pipe 59 and the sub-blowing pipe 510, and the diaphragm that fits the mold assembly 6 is blown up, so that one side of it is tilted up, so that the robot can remove it. Since the gas discharged from the air outlet of the vacuum generator 51 may be too high in pressure, the diaphragm may be blown off, causing damage to the diaphragm. By adjusting the flow valve 583, part of the gas is discharged through the vent pipe 582 to prevent the diaphragm from being blown off. ;

[0035] Specifically, the mold assembly 6 includes a lower mold 61 fixedly installed on the top side of the fixed seat 1, a placement groove 62 is opened on the top side of the lower mold 61, a placement groove 63 is opened inside the lower mold 61, and four limiting slide grooves 64 are opened on the inner side wall of the placement groove 63, and the four limiting slide grooves 64 are distributed in a ring array, and a supporting magnetic block 65 is installed in the limiting slide groove 64 for limiting sliding. An adjusting magnetic block adapted to the supporting magnetic block 65 is arranged inside the stamping assembly 8, and the supporting magnetic block 65 is magnetically attracted to the adjusting magnetic block. A support frame 66 is fixedly connected between the multiple supporting magnetic blocks 65, and a plurality of connecting columns 67 are fixedly connected to the top of the support frame 66. A sealing sheet 68 is fixedly installed on the top of the connecting column 67. A cooling hole 69 adapted to each sealing sheet 68 is opened on the top of the lower mold 61, and the top of the supporting magnetic block 65 is fixedly installed There is a spring 610, and the top of the spring 610 is fixedly connected to the inner top wall of the placement groove 63; before stamping, the diaphragm is placed in the placement groove 62, and the placement groove 62 limits the diaphragm so that the diaphragm will not shift when being stamped. At this time, the supporting magnetic block 65 is placed on the bottom wall of the limiting slide groove 64 under the action of the spring 610 and fits with the bottom wall of the limiting slide groove 64. The support frame 66, the connecting column 67 and the sealing sheet 68 are also placed in the placement groove 63. When the stamping assembly 8 stamps the diaphragm, the adjusting magnetic block in the stamping assembly 8 is magnetically attracted to the supporting magnetic block 65, and the supporting magnetic block 65 compresses the spring 610 to move the supporting frame 66, the connecting column 67 and the sealing sheet 68 upward. When the top wall of the supporting magnetic block 65 fits with the inner top wall of the limiting slide groove 64, multiple sealing sheets 68 move into the cooling hole 69 and form a product stamping die groove.

[0036] Furthermore, the stamping assembly 8 includes a motor 81 fixedly mounted on the inner bottom wall of the mounting groove 2, a missing gear 82 fixedly mounted on the output end of the motor 81, an adjusting gear 83 meshing with or disengaging from the missing gear 82 fixedly mounted on the outer side of the support column 7, the number of teeth of the missing gear 82 being one-fourth of the adjusting gear 83, a connecting plate 84 fixedly mounted on the top of the support column 7, a cylinder 85 fixedly mounted on the top of the end of the connecting plate 84 away from the support column 7, the telescopic end of the cylinder 85 movably passes through the connecting plate 84 and is fixedly connected to an upper mold 86, and the upper mold 86 is placed directly above the lower mold 61; when stamping the diaphragm, the missing gear 82 is driven to rotate by the motor 81, and when the missing gear 82 rotates one circle, the adjusting gear 83 is driven to rotate 90° through meshing, that is, it rotates from directly above a corresponding lower mold 61 to directly above the next adjacent lower mold 61, and when the adjusting gear 83 rotates, the cylinder 85 and the upper mold 86 are driven to rotate together through the support column 7 and the connecting plate 84.

[0037] The adjustment assembly 9 includes a fixed ring 91 fixedly mounted on the outside of the support column 7, an adjustment plate 92 is fixedly mounted on the outside of the fixed ring 91, and the adjustment plate 92 is placed directly below the connecting plate 84. A position sensor is arranged inside the adjustment plate 92, and the position sensor and the cylinder 85 are electrically connected to the controller. The end of the adjustment plate 92 away from the fixed ring 91 is adapted to the adjustment groove 56, and a main adjustment ring 93 is fixedly mounted on the adjustment plate 92. The main adjustment ring 93 is adapted to the main limit tube 54 and the slave limit tube 57, and a main adjustment ring 93 is provided. There is a main adjustment slot 94, and a slave adjustment ring 95 is fixedly installed at one end of the adjustment plate 92 away from the fixed ring 91. The slave adjustment ring 95 is adapted to the main blowing pipe 59 and the slave blowing pipe 510. A slave adjustment slot 96 is opened on the slave adjustment ring 95. The bottom wall of the fixed ring 91 and the adjustment plate 92 fits the bottom wall of the mounting plate 3. The main adjustment slot 94 and the slave adjustment slot 96 both occupy one-half of the area of ​​the corresponding main adjustment ring 93 or the slave adjustment ring 95, and the main adjustment slot 94 and the slave adjustment slot 96 are respectively placed on both sides of the adjustment plate 92;When the support column 7 rotates, the adjustment plate 92 drives the main adjustment ring 93 and the slave adjustment ring 95 to rotate together with the support column 7. When the adjustment plate 92 rotates to correspond to one of the lower molds 61, the adjustment plate 92 seals the corresponding main limit tube 54 and slave limit tube 57 and the main blowing tube 59 and slave blowing tube 510, so that the negative pressure of the vacuum generator 51 and the gas generated by the air outlet cannot act on the diaphragm. The position sensor in the adjustment plate 92 senses the lower mold 61 and transmits an electrical signal to the controller. The controller then outputs a command to the cylinder 85 so that the telescopic end of the cylinder 85 drives the upper mold 86 to move downward to punch the diaphragm and then move upward to reset. The downward punching and upward reset of the upper mold 86 are completed within the interval between the missing gear 82 and the adjusting gear 83. When the missing gear 82 is meshed with the adjusting gear 83 again, the adjusting gear 83 drives the support column 7 and the adjusting plate 92 to continue rotating 90° to the next lower mold 61. At the same time, the adjusting plate 92 also drives the main adjusting ring 93 and the slave adjusting ring 95 to rotate. After the main adjusting ring 93 rotates 90°, the main adjusting groove 94 is placed between the main limiting tube 54 and the slave limiting tube 57, so that the main limiting tube 54 and the slave limiting tube 57 are connected, so that the negative pressure of the vacuum generator 51 can be adsorbed and limited by the diaphragm stamped on the lower mold 61 through the first connecting tube 52 and the negative pressure tube 53, so as to prevent it from deforming due to the temperature difference between the lower mold 61 and the air. At this time, the slave adjusting ring 95 still seals the main blowing tube 59 and the slave blowing tube 510 until the adjusting plate After the main adjusting ring 92 rotates 180° relative to the lower mold 61, the main limiting tube 54 and the secondary limiting tube 57 are sealed again, and the negative pressure of the vacuum generator 51 no longer acts on the diaphragm. At this time, the secondary adjusting slot 96 is rotated to between the main blowing tube 59 and the secondary blowing tube 510, thereby connecting the two. The vacuum generator 51 blows the diaphragm on the lower mold 61 through the air generated by the second connecting tube 58 and the air outlet pipe 581, so that the diaphragm is no longer completely fitted with the lower mold 61.

[0038] The working principle of this device is as follows:

[0039] 1. During stamping, the diaphragm is first preheated by an electric heating plate, and then the heated diaphragm is placed in the placement groove 62 on the lower mold 61 by a manipulator, and the missing gear 82 is driven to rotate by the output end of the motor 81. When the missing gear 82 rotates one circle, the adjusting gear 83 is driven to rotate 90° through the meshing transmission. When the adjusting gear 83 rotates, the connecting plate 84 and the cylinder 85 are driven to rotate to the top of the lower mold 61 through the support column 7. The adjusting plate 92 seals the corresponding main limit tube 54 and the slave limit tube 57 and the main blowing tube 59 and the slave blowing tube 510, so that the negative pressure of the vacuum generator 51 and the gas generated by the outlet cannot act on the diaphragm. The position sensor in the adjusting plate 92 senses the lower mold 61 and transmits the electrical signal to the controller, and then The controller outputs a command to the cylinder 85 so that the telescopic end of the cylinder 85 drives the upper mold 86 to move downward to punch the diaphragm and then moves upward to reset. When the upper mold 86 moves downward, the adjusting magnetic block in the upper mold 86 and the supporting magnetic block 65 in the lower mold 61 are magnetically attracted, and the spring 610 is compressed, so that the supporting magnetic block 65 drives the sealing plate 68 to move upward through the supporting frame 66 and the connecting column 67 to seal the cooling hole 69 and form a product stamping die groove to prevent the cooling hole 69 from affecting the stamping effect of the diaphragm. After the stamping is completed, as the upper mold 86 moves upward, the adjusting magnetic block moves a certain distance and cannot be attracted to the supporting magnetic block 65. Under the action of the elastic force of the spring 610, the supporting magnetic block 65 drives the supporting frame 66 and the sealing plate 68 to move downward so that the cooling hole 69 is no longer sealed.

[0040] 2. With the continued rotation of the missing gear 82 and the adjusting gear 83, when the connecting plate 84, the cylinder 85 and the upper mold 86 rotate 90° and are placed directly above the adjacent lower mold 61, the adjusting plate 92 also drives the main adjusting ring 93 and the slave adjusting ring 95 to rotate together. After the main adjusting ring 93 rotates 90°, the main adjusting groove 94 is placed between the main limiting tube 54 and the slave limiting tube 57 corresponding to the previous lower mold 61, so that the main limiting tube 54 and the slave limiting tube 57 of this group are connected, so that the negative pressure of the vacuum generator 51 can be adsorbed and limited on the diaphragm stamped on the lower mold 61 through the first connecting tube 52 and the negative pressure tube 53, etc., and the thermal stress is overcome by providing adsorption force to prevent it from being deformed due to the temperature difference between it and the air. At this time, due to the separation of the main adjusting groove 94 and the slave adjusting groove 96 They are not arranged on both sides of the adjustment plate 92, so the slave adjustment ring 95 still seals the group of main blowing tubes 59 and the slave blowing tubes 510, until the connecting plate 84, the cylinder 85 and the upper mold 86 are rotated 180° relative to the lower mold 61, the main adjustment ring 93 re-seals the group of main limiting tubes 54 and the slave limiting tubes 57, and the negative pressure of the vacuum generator 51 no longer acts on the diaphragm. At this time, the slave adjustment slot 96 is rotated to between the group of main blowing tubes 59 and the slave blowing tubes 510, so that the two are connected, and the vacuum generator 51 blows the diaphragm on the lower mold 61 through the air generated by the second connecting pipe 58 and the air outlet pipe 581, so that the diaphragm is no longer completely fitted with the lower mold 61, and the auxiliary manipulator unloads the diaphragm, and so on. Each diaphragm on the lower mold 61 undergoes this operation process.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A stamping die for a diaphragm, comprising a controller, characterized in that: It also comprises a fixed seat (1), wherein a mounting groove (2) is provided inside the fixed seat (1), a mounting plate (3) is fixedly installed on the inner side wall of the mounting groove (2), a mounting cavity (4) is provided inside the fixed seat (1) and below the mounting groove (2), a cooling assembly (5) is provided in the mounting groove (2) and the mounting cavity (4), four groups of mold assemblies (6) are fixedly installed on the top side of the fixed seat (1), the four groups of mold assemblies (6) are arranged in a ring array, a support column (7) is rotatably installed on the inner bottom wall of the mounting groove (2), the top of the support column (7) passes through the mounting plate (3) and the top wall of the mounting groove (2), a stamping assembly (8) is provided on the mounting groove (2) and the support column (7), an adjustment assembly (9) is provided on the mounting plate (3) and the support column (7), and the stamping assembly (8) is transmission-connected to the adjustment assembly (9); The cooling assembly (5) comprises a vacuum generator (51) fixedly mounted in the mounting cavity (4); a vacuum suction port of the vacuum generator (51) is fixedly connected to a first connecting pipe (52); a negative pressure pipe (53) is fixedly mounted on the top of the mounting plate (3); an end of the first connecting pipe (52) away from the vacuum generator (51) is fixedly connected to the negative pressure pipe (53); the top of the negative pressure pipe (53) is fixedly connected to four main position limiting pipes (54); a connecting block (55) corresponding to each main position limiting pipe (54) is fixedly mounted on the top of the mounting plate (3); an adjusting groove (56) is provided on the connecting block (55); the main position limiting pipe (54) is fixedly connected to the adjusting groove (56); and the top of the adjusting groove (56) is fixedly connected to A slave limiting tube (57) corresponding to each main limiting tube (54), the air outlet of the vacuum generator (51) is fixedly connected to a second connecting tube (58), an air outlet pipe (581) is fixedly installed on the top of the mounting plate (3), one end of the second connecting tube (58) away from the vacuum generator (51) is fixedly connected to the air outlet pipe (581), the top of the air outlet pipe (581) is fixedly connected to four main blowing tubes (59), the top of the main blowing tube (59) is fixedly connected to the corresponding adjustment groove (56), the top of the adjustment groove (56) is respectively fixedly connected to the slave blowing tube (510) corresponding to each main blowing tube (59), and the top of the slave limiting tube (57) and the slave blowing tube (510) are both fixedly connected to the corresponding mold assembly (6); The adjustment assembly (9) comprises a fixing ring (91) fixedly mounted on the outside of the support column (7); an adjustment plate (92) is fixedly mounted on the outside of the fixing ring (91); one end of the adjustment plate (92) away from the fixing ring (91) is matched with the adjustment groove (56); a main adjustment ring (93) is fixedly mounted on the adjustment plate (92); the main adjustment ring (93) is matched with the main limit tube (54) and the slave limit tube (57); a main adjustment through groove (94) is formed on the main adjustment ring (93); a slave adjustment ring (95) is fixedly mounted on the end of the adjustment plate (92) away from the fixing ring (91); the slave adjustment ring (95) is matched with the main blowing tube (59) and the slave blowing tube (510); and a slave adjustment through groove (96) is formed on the slave adjustment ring (95).

2. A stamping die for a diaphragm according to claim 1, characterized in that: The mold assembly (6) comprises a lower mold (61) fixedly mounted on the top side of a fixed seat (1); a placement groove (62) is provided on the top side of the lower mold (61); a placement groove (63) is provided inside the lower mold (61); four limiting slide grooves (64) are provided on the inner side wall of the placement groove (63); the four limiting slide grooves (64) are distributed in a ring array; a support magnetic block (65) is slidingly mounted in the limiting slide groove (64); a plurality of the supporting magnetic blocks (65) are fixedly connected to a support frame (66); a plurality of connecting columns (67) are fixedly connected to the top of the support frame (66); a sealing sheet (68) is fixedly mounted on the top of the connecting column (67); a cooling hole (69) matched with each sealing sheet (68) is provided on the top of the lower mold (61); a spring (610) is fixedly mounted on the top of the supporting magnetic block (65); the top of the spring (610) is fixedly connected to the inner top wall of the placement groove (63).

3. A stamping die for a diaphragm according to claim 2, characterized in that: The punching assembly (8) comprises a motor (81) fixedly mounted on the inner bottom wall of the mounting groove (2); a missing gear (82) is fixedly mounted on the output end of the motor (81); an adjusting gear (83) meshing with or disengaging from the missing gear (82) is fixedly mounted on the outer side of the support column (7); the number of teeth of the missing gear (82) is one quarter of that of the adjusting gear (83); a connecting plate (84) is fixedly mounted on the top of the support column (7); a cylinder (85) is fixedly mounted on the top of one end of the connecting plate (84) away from the support column (7); a telescopic end of the cylinder (85) movably penetrates the connecting plate (84) and is fixedly connected to an upper mold (86); the upper mold (86) is placed directly above the lower mold (61); an adjusting magnetic block matching the supporting magnetic block (65) is fixedly mounted inside the upper mold (86).

4. A stamping die for a diaphragm according to claim 3, characterized in that: The bottom walls of the fixing ring (91) and the adjusting plate (92) are in contact with the bottom wall of the mounting plate (3); the adjusting plate (92) is placed directly below the connecting plate (84); the main adjusting slot (94) and the secondary adjusting slot (96) each occupy half the area of ​​the corresponding main adjusting ring (93) or secondary adjusting ring (95); and the main adjusting slot (94) and the secondary adjusting slot (96) are respectively placed on two sides of the adjusting plate (92).

5. A stamping die for a diaphragm according to claim 1, characterized in that: One end of the air outlet pipe (581) away from the second connecting pipe (58) is fixedly connected to an air leakage pipe (582), and a flow valve (583) is fixedly installed on the air leakage pipe (582).

6. A stamping die for a diaphragm according to claim 4, characterized in that: A position sensor is disposed inside the adjustment plate (92), and the position sensor and the cylinder (85) are both electrically connected to the controller.

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