Thyristor cooling fin in-mold tapping mold

Abstract

The utility model discloses a silicon controlled rectifier radiating fin in-mold tapping mold which comprises an upper cover plate, an upper mold base, a lower mold base and a plurality of lower foot pads, the upper cover plate is installed at the top of the upper mold base, the lower foot pads are evenly installed at the bottom of the lower mold base, outer guide sleeves are arranged on the periphery of the bottom of the upper mold base, and the outer guide sleeves are connected with the upper mold base. Four outer guide sleeves are arranged on the upper die base, outer guide columns corresponding to the four outer guide sleeves are arranged on the top of the lower die base, the outer guide columns can be movably arranged in the outer guide sleeves in a penetrating mode up and down, and a punching assembly, a tapping feeding assembly and a bending forming assembly are sequentially arranged between the upper die base and the lower die base from left to right. The multi-time manual machining is not needed, the tapping standard is consistent, the product machining is stable, the production efficiency can be greatly improved, and the product percent of pass is guaranteed. And meanwhile, automatic feeding can be achieved, feeding equipment can be saved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to a thyristor heat sink mould, in particular to an in-mould tapping mould for a thyristor heat sink. Background Art

[0002] Thyristor is a key electronic component in the circuit. To ensure the stability and reliability of electronic components, it is necessary to rely on thyristor heat sink to effectively dissipate heat. The existing method of processing thyristor heat sink is to use mold stamping to shape, then use drilling machine to drill holes, and finally tap the holes manually. The heat sink made in this way has the following two defects: 1. The surface is easily scratched due to multiple processing. If the surface is scratched, it will not be in sufficient contact with the thyristor, and the heat dissipation effect is poor; 2. The position of the teeth is not accurate enough for manual tapping, and the standards of each tooth hole are different, which has poor stability, resulting in the assembly of the heat sink and the main body, and other undesirable assembly consequences such as slipping. Utility Model Content

[0003] The utility model provides an in-mold tapping die for a thyristor heat sink, the main purpose of which is to solve the above-mentioned problems.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A silicon controlled radiator in-mold tapping die comprises an upper cover plate, an upper die base, a lower die base and a plurality of lower pads, wherein the upper cover plate is mounted on the top of the upper die base, the plurality of lower pads are evenly mounted on the bottom of the lower die base, outer guide sleeves are arranged around the bottom of the upper die base, outer guide pillars corresponding to four outer guide sleeves are arranged on the top of the lower die base, the outer guide pillars can be movably inserted into the outer guide sleeves up and down, and a punching assembly, a tapping feeding assembly and a bending forming assembly are arranged in sequence from left to right between the upper die base and the lower die base.

[0006] The tapping and feeding assembly includes a tapping machine body, a positioning chuck, a screw rod, a screw rod sleeve, four tap components and a feeding component. Support bars are installed on both sides of the bottom of the tapping machine body. The middle of the support bar is provided with left and right through grooves. A tapping stripping plate is installed at the bottom of the support bar. A tapping splint is provided below the tapping stripping plate. The tapping splint is installed on the top of the lower die seat. Tapping guide columns are provided around the top of the tapping splint. The tapping stripping plate can be installed on the tapping guide columns so as to move up and down. The positioning chuck is installed at the bottom of the upper die seat. The top end of the screw rod is fixedly connected to the positioning chuck, the four tap components are evenly installed on the tapping machine body, and the upper and lower ends of the four tap components extend out of the top and bottom of the tapping machine body, the lower end of the screw rod passes through the rear side of the tapping machine body and can drive the four tap components to rotate forward and reversely, the screw rod sleeve is installed on the top of the lower die seat, the lower end of the screw rod can be placed in the screw rod sleeve, the bottom of the feeding component is installed on the top of the tapping clamp, the middle part of the feeding component is hinged to the middle part of the right side of the tapping stripping plate, and the tapping stripping plate can drive the feeding component to feed to the right.

[0007] The tap component includes a tap chuck, a tapping tap, a tapping gear and two bearings. The tapping tap is installed at the bottom of the tap chuck, the tapping gear is fixedly installed on the outer periphery of the tapping tap, the two bearings are fixedly installed outside the tapping tap, the tapping gear is located between the two bearings, the bearings of the four tap components are all installed in the tapping machine body, the tapping gears of the four tap components are meshed and transmitted in sequence respectively, a screw gear is also provided in the tapping machine body, the screw gear is sleeved outside the screw and is transmission-connected to the screw, and the screw gear is meshed and transmission-connected to the tapping gear nearest to it.

[0008] The feeding component includes a slider, a support seat and a connecting rod. The support seat is installed on the top right side of the tapping splint. The front and rear sides of the top of the support seat are installed with left and right sliding rails. The slider can be installed on the top of the sliding rail so as to slide left and right. The left and right ends of the connecting rod are respectively hinged to the right bottom of the tapping stripper plate and the left side of the sliding rail. A rebound unit is provided on the top of the sliding rail.

[0009] The rebound unit includes a rebound pin and a spring. A mounting blind hole is provided on the top of the slider. The lower end of the spring is installed on the bottom end of the blind hole. The upper end of the spring is connected to the bottom end of the rebound pin. The bottom of the rebound pin can be slid up and down on the mounting blind hole. The upper part of the rebound pin is provided with an inclined surface facing the left side.

[0010] The punching assembly includes a first upper backing plate, a first upper pad, a first upper clamping plate, a first stop plate, a first upper stripping plate, a first lower template and a first lower pad, the first upper backing plate is installed at the bottom of the upper die seat, the first upper pad is installed at the bottom of the first upper backing plate, the first upper clamping plate is installed at the bottom of the first upper pad, the bottom of the first upper clamping plate is installed with first inner guide pillars around the bottom, the bottom of the first stop plate is fixedly connected to the top of the first upper stripping plate, and the first stop plate and the first upper stripping plate can be slidably installed on the first inner guide pillars up and down. The first stop plate is located directly below the first upper clamping plate, the front and rear sides of the first upper clamping plate are both installed with first side hanging plates, the first lower pad is installed on the top of the lower die seat, the first lower template is installed on the top of the first lower pad, a plurality of punching punches are installed on the bottom of the first upper stripping plate, the first lower template is provided with a punch bottom mold corresponding to the plurality of punching punches, the lower template is also provided with four first inner guide holes matching the corresponding four first inner guides, and the bottom end of the first inner guide column can pass through the first upper stripping plate and fit into the corresponding first inner guide hole.

[0011] The bottom of the first upper stripping plate is also provided with four chamfering die heads, and the four chamfering die heads are located on the right side of the four punching punches. The first lower template is provided with four chamfering inner die holes that cooperate with the corresponding four chamfering punches.

[0012] The bending forming assembly includes a second upper backing plate, a second upper pad, a second upper clamping plate, a second stop plate, a second upper stripping plate, a second lower template and a second lower pad, the second upper backing plate is installed at the bottom of the upper mold base, the second upper pad is installed at the bottom of the second upper backing plate, the second upper clamping plate is installed at the bottom of the second upper pad, second inner guide pillars are installed around the bottom of the second upper clamping plate, the bottom of the second stop plate is fixedly connected to the top of the second upper stripping plate, the second stop plate and the second upper stripping plate can be slidably installed on the second inner guide pillars up and down, and the second The stop plate is located directly below the second upper clamp plate, and two second side hanging plates arranged at intervals on the left and right are installed on the front and rear sides of the second upper clamp plate, the second lower pad is installed on the top of the lower mold base, the second lower template is installed on the top of the second lower pad, and a bending forming module is installed on the bottom of the second upper stripping plate. The second lower template is provided with a bending forming bottom template that cooperates with the bending forming module, and the lower template is also provided with four second inner guide holes that cooperate with the corresponding four second inner guides, and the bottom end of the second inner guide column can pass through the second upper stripping plate and fit into the corresponding second inner guide hole.

[0013] The bending and forming module group includes a first bending and forming punch, a second bending and forming punch, a third bending and forming punch, a first bending and forming bottom die, a second bending and forming bottom die and a third bending and forming bottom die. The first bending and forming punch, the second bending and forming punch and the third bending and forming punch are installed on the bottom of the second upper stripping plate from left to right in sequence, and the first bending and forming bottom die, the second bending and forming bottom die and the third bending and forming bottom die are installed on the top of the second lower template in sequence from left to right. The first bending and forming punch and the first bending and forming bottom die, the second bending and forming punch and the second bending and forming bottom die, and the third bending and forming punch and the third bending and forming bottom die are respectively arranged in correspondence up and down.

[0014] A blanking punch is provided at the bottom of the second upper stripping plate, and a blanking bottom die is provided at the top of the second lower template. The blanking punch is located on the right side of the third bending forming punch, and the blanking punch and the blanking bottom die are arranged correspondingly up and down.

[0015] From the above description of the structure of the utility model, it can be seen that compared with the prior art, the utility model has the following advantages: the utility model is cleverly designed and easy to use. The material strip enters from the left side of the mold and is sent out from the right side. By setting a punching component, the incoming material strip can be punched. After the holes are punched, the material strip passes through the tapping and feeding component. The tapping and feeding component can tap the pre-punched holes and send the material strip to the next station at the same time, which is easy to use. Finally, it is formed and bent through the bending and molding component. The use of this mold to process the thyristor heat sink can complete punching, tapping and molding at one time. This processing not only does not require multiple manual processing, but also has consistent tapping standards and stable product processing, which can greatly improve production efficiency and ensure product qualification rate. At the same time, it can also feed automatically, which can save a feeding equipment and reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the utility model after mold separation.

[0017] Figure 2 It is a three-dimensional schematic diagram of the utility model after mold closing.

[0018] Figure 3 It is a partial three-dimensional schematic diagram of the tapping and feeding assembly of the utility model.

[0019] Figure 4 It is a three-dimensional schematic diagram of the feeding component of the utility model.

[0020] Figure 5 A three-dimensional schematic diagram of the feeding component and the material belt of the utility model cooperating to feed materials DETAILED DESCRIPTION

[0021] Reference Figure 1 and Figure 2. A thyristor heat sink in-mold tapping die, comprising an upper cover plate 1, an upper die base 2, a lower die base 3 and a plurality of lower pads 4, wherein the upper cover plate 1 is mounted on the top of the upper die base 2. The plurality of lower pads 4 are evenly mounted on the bottom of the lower die base 3, the bottom of the upper die base 2 is provided with outer guide sleeves 5 all around, the top of the lower die base 3 is provided with outer guide pillars 6 corresponding to the four outer guide sleeves 5, and the outer guide pillars 6 can be movably inserted in the outer guide sleeves 5 up and down. A punching assembly 7, a tapping feeding assembly 8 and a bending forming assembly 9 are sequentially arranged between the upper die base 2 and the lower die base 3 from left to right.

[0022] Reference Figure 1 and Figure 2 The upper cover plate 1 is installed on the punch press, the upper die seat 2 can play a role of connection and bearing, the lower die seat 3 can play a role of bearing and connection, and the lower pad 4 can be set to four pieces and evenly distributed to play a supporting role. The outer guide column 6 and the outer guide sleeve 5 can be connected up and down, so that the mold closing process can be accurately matched, which has a guiding role.

[0023] Reference Figures 1 to 3 . The tapping and feeding assembly 8 includes a tapping machine body 81, a positioning chuck 82, a screw 83, a screw sleeve 84, four tap components 85 and a feeding component 86. Support bars 10 are installed on both sides of the bottom of the tapping machine body 81. The middle part of the support bar 10 is provided with left and right through grooves, so that the material belt can pass through the through grooves, and the support bar 10 has the function of supporting and connecting the tapping machine body 81. A tapping stripping plate 11 is installed at the bottom of the support bar 10. The tapping stripping plate 11 can lift the material belt during the mold opening process to play a stripping role. A tapping splint 12 is provided below the tapping stripping plate 11. The tapping splint 12 is installed on the top of the lower mold base 3, and the tapping splint 12 has a connecting and fixing function. The top of the tapping clamp 12 is surrounded by tapping guide pins 13, and the tapping stripper plate 11 is mounted on the tapping guide pins 13 so as to be movable up and down. The tapping guide pins 13 are used to keep the tapping stripper plate 11 and the tapping clamp 12 corresponding to each other when sliding up and down, and will not deviate. The positioning chuck 82 is mounted on the bottom of the upper die base 2, and the top of the screw rod 83 is fixedly connected to the positioning chuck 82.

[0024] Reference Figures 1 to 3The four tap components 85 are evenly mounted on the tapping machine body 81, and the upper and lower ends of the four tap components 85 extend out of the top and bottom of the tapping machine body 81. The lower end of the screw rod 83 passes through the rear side of the tapping machine body 81 and can drive the four tap components 85 to rotate forward and reversely. The screw rod sleeve 84 is mounted on the top of the lower die base 3, and the lower end of the screw rod 83 can be placed in the screw rod sleeve 84. The bottom of the feeding component 86 is mounted on the top of the tapping clamping plate 12, and the middle part of the feeding component 86 is hinged to the middle part of the right side of the tapping stripping plate 11, and the tapping stripping plate 11 can drive the feeding component 86 to feed rightward.

[0025] Reference Figures 1 to 3 The tapping machine body 81 can be used to install the tap component 85 and the screw rod 83 , the positioning chuck 82 is used to install the screw rod 83 , the screw rod 83 can drive the four tap components 85 to rotate and tap by moving up and down, and the screw rod sleeve 84 has the function of protecting the screw rod 83 .

[0026] Reference Figures 1 to 3 The tap component 85 includes a tap chuck 851, a tapping tap 852, a tapping gear 853 and two bearings 854. The tapping tap 852 is installed at the bottom of the tap chuck 851. The tapping gear 853 is fixedly installed on the outer periphery of the tapping tap 852. The two bearings 854 are fixedly installed outside the tapping tap 852. The tapping gear 853 is located between the two bearings 854. The bearings 854 of the four tap components 85 are all installed in the tapping machine body 81. The tapping gears 853 of the four tap components 85 are meshed and transmitted in sequence. A screw gear 14 is also provided in the tapping machine body 81. The screw gear 14 is sleeved outside the screw 83 and is in transmission connection with the screw 83. The screw gear 14 is meshed and transmitted with the tapping gear 853 closest to it.

[0027] Reference Figures 1 to 3 The tap chuck 851 has the function of clamping the tap, the tapping tap 852 can tap the pre-punched hole of the material strip, the tapping gear 853 can mesh with the screw gear 14, and the adjacent tapping gear 853 can mesh with each other, so as to have the function of transmission rotation. The setting of the bearing 854 can ensure the rapid rotation of the tap and realize the smooth tapping.

[0028] Reference Figures 1 to 3. When the mold is closed, the upper die seat 2 drives the positioning chuck 82 to move downward, and the screw 83 moves downward at the same time. During the downward movement of the screw 83, the screw gear 14 rotates because the screw gear 14 is in spiral cooperation with the screw 83. After the screw gear 14 rotates, the tapping gear 853 meshing with it rotates, so the four tapping gears 853 all rotate. When the upper die seat 2 moves downward and contacts the tops of the four tap chucks 851, the four tap chucks 851 can extend into the upper die seat 2 and be driven downward by the upper die seat 2, so that the tapping machine body 81 and the four tap components 85 all move downward, and the support bar 10 moves downward together with the tapping stripping plate 11. An elastic member is arranged between the tapping stripping plate 11 and the tapping clamping plate 12, so that the four taps can tap the holes of the material strip. When the mold is separated, the elastic member drives the tapping stripping plate to move upward, so that the four taps are separated from the holes, and the tapping of the four holes is completed once.

[0029] Reference Figures 1 to 5 The feeding member 86 includes a slider 861, a support seat 862 and a connecting rod 863. The support seat 862 is installed on the top right side of the tapping clamp 12. The front and rear sides of the top of the support seat 862 are both installed with left and right sliding rails 864. The slider 861 can be installed on the top of the sliding rail 864 to slide left and right. The left and right ends of the connecting rod 863 are respectively hinged to the right bottom of the tapping stripping plate 11 and the left side of the sliding rail 864. The top of the sliding rail 864 is provided with a rebound unit 15. The rebound unit 15 includes a rebound pin 151 and a spring 152. The top of the slider 861 is provided with a mounting blind hole, and the lower end of the spring 152 is installed at the bottom end of the blind hole. The upper end of the spring 152 is connected to the bottom end of the rebound pin 151. The bottom of the rebound pin 151 can be slidably placed on the mounting blind hole up and down, and the upper part of the rebound pin 151 is provided with an inclined surface facing the left side.

[0030] Reference Figures 1 to 5 . The slider 861 can drive the material plate to move to the right, the support seat 862 can be used to support the slider 861 and the slide rail 864, and the connecting rod 863 has the function of pushing the slider 861 to move left and right. The rebound unit 15 has a rebound effect and can be used to cooperate with the hole position of the material belt to realize the material belt conveying. The rebound pin 151 can be plugged into the hole pre-punched in the material belt, and the spring 152 can drive the rebound pin 151 to move up and down. The installation blind hole can be used to install the spring 152 and the rebound pin 151. The left inclined surface of the rebound pin 151 can ensure that when the slider 861 moves to the left, the rebound pin 151 is separated from the feeding hole pre-punched in the material belt, so that the slider 861 returns to the left.

[0031] Reference Figures 1 to 5. Feeding process: When the mold is closed, the tapping stripper 11 moves down. At this time, the lower end of the connecting rod 863 is driven down by the tapping stripper 11, so that the upper end of the connecting rod 863 can drive the slider 861 to move to the left. Because the rebound unit 15 is set, the inclined surface of the rebound pin 151 of the rebound unit 15 is separated from the pre-punched hole of the material strip, so that the slider 861 moves back to the left until the tapping stripper 11 is pressed down to the bottom position, and the rebound pin 151 returns to and enters the previous feeding hole position. When the tapping is completed and the mold is separated, the tap leaves the hole position of the material plate. Since the tapping stripper 11 moves upward, the lower end of the connecting rod 863 moves upward, and the upper end of the connecting rod 863 drives the slider 861 to move to the right. Since the rebound pin 151 of the slider 861 enters the feeding hole position, it can drive the material strip to move one station to the right, so that automatic feeding can be completed.

[0032] Reference Figure 1 and Figure 3 The punching assembly 7 includes a first upper backing plate 71, a first upper pad 72, a first upper clamping plate 73, a first stop plate 74, a first upper stripping plate 75, a first lower template 76 and a first lower pad 77. The first upper backing plate 71 is installed at the bottom of the upper die seat 2, the first upper pad 72 is installed at the bottom of the first upper backing plate 71, and the first upper clamping plate 73 is installed at the bottom of the first upper pad 72. The bottom of the first upper clamping plate 73 is equipped with first inner guide pillars all around, and the bottom of the first stop plate 74 is fixedly connected to the top of the first upper stripping plate 75. The first stop plate 74 and the first upper stripping plate 75 can be slidably installed on the first inner guide pillar 18 up and down. The first stop plate 74 is located directly below the first upper clamping plate 73, and the front and rear sides of the first upper clamping plate 73 are equipped with first side hanging plates 16, the first lower pad 77 is installed at the top of the lower die seat 3, and the first lower template 76 is installed at the top of the first lower pad 77. A plurality of punching punches are installed at the bottom of the first upper stripping plate 75, and the first lower template 76 is provided with a punch bottom template corresponding to the plurality of punching punches. The lower template is also provided with four first inner guide holes matching the corresponding four first inner guides, and the bottom end of the first inner guide column can pass through the first upper stripping plate 75 and fit into the corresponding first inner guide hole.

[0033] Reference Figure 1 and Figure 3. The first upper backing plate 71 has a connecting function, the first upper pad 72 has a receiving and cushioning function, the first upper clamping plate 73 has a connecting and fixing function, the first stop plate 74 has a stopping function, and the first upper stripping plate 75 can play a role in stripping after punching and parting. The first lower template 76 can be installed with the punching bottom mold, and the first lower pad 77 can support the first lower template 76, which has a connecting and fixing function. The first side hanging plate 16 can limit and guide the first stop plate 74 and the first upper stripping plate 75 during the mold closing process. The punching punch corresponds to the punch bottom mold closing process, and can punch holes in the material strip. The punching station belongs to the existing conventional technology.

[0034] Reference Figure 1 , Figure 4 and Figure 5 By providing a plurality of punching punches, it is ensured that the through holes of the heat sink can be punched out smoothly, and at the same time, a feeding punch 19 is added, and in combination with the rebound pin 151, the feeding can be completed automatically.

[0035] Reference Figure 1 and Figure 2 The bottom of the first upper stripping plate 75 is also provided with four chamfering die heads, and the four chamfering die heads are located on the right side of the four punching punches. The first lower template 76 is provided with four chamfering inner die holes that cooperate with the corresponding four chamfering punches. Adding four chamfering die heads ensures that the four punched holes can be chamfered at one time, which facilitates the next tapping process to proceed more smoothly. The chamfering die head cooperates with the chamfering inner die hole to chamfer the holes punched in the previous station, which facilitates the tapping process in the next station.

[0036] Reference Figures 1 to 3. The bending forming assembly 9 includes a second upper backing plate 91, a second upper pad 92, a second upper clamping plate 93, a second stop plate 94, a second upper stripping plate 95, a second lower template 96 and a second lower pad 97. The second upper backing plate 91 is installed at the bottom of the upper mold base 2. The second upper pad 92 is installed at the bottom of the second upper backing plate 91, and the second upper clamping plate 93 is installed at the bottom of the second upper pad 92. Second inner guide pillars are installed around the bottom of the second upper clamping plate 93. The bottom of the second stop plate 94 is fixedly connected to the top of the second upper stripping plate 95. The second stop plate 94 and the second upper stripping plate 95 can be slidably installed on the second inner guide pillars up and down, and the second stop plate 94 is located directly below the second upper clamping plate 93. The front and rear sides of the second upper clamping plate 93 are installed with two second side hanging plates 17 arranged at intervals on the left and right. The second lower pad 97 is installed on the top of the lower die base 3, the second lower template 96 is installed on the top of the second lower pad 97, a bending and forming module is installed at the bottom of the second upper stripping plate 95, and the second lower template 96 is provided with a bending and forming bottom module matched with the bending and forming module. The lower template is also provided with four second inner guide holes matched with the corresponding four second inner guides, and the bottom end of the second inner guide column can pass through the second upper stripping plate 95 and fit into the corresponding second inner guide hole.

[0037] Reference Figures 1 to 3 . The second upper backing plate 91 has a connecting function, the second upper pad 92 has a receiving and cushioning function, the second upper clamping plate 93 has a connecting and fixing function, the second stop plate 94 has a stopping function, and the second upper stripping plate 95 can play a role in stripping after punching and parting. The second lower template 96 can be installed with the punching bottom mold, and the second lower pad 99 can support the second lower template 96, which has a connecting and fixing function. The second side hanging plate 17 can limit and guide the second stop plate 94 and the second upper stripping plate 95 during the mold closing process. The bending and forming module group corresponds to the bending and forming bottom mold combination mold process, and can perform bending and forming processing on the material strip, which belongs to the existing conventional technology.

[0038] Reference Figures 1 to 3 . The bending and forming module group includes a first bending and forming punch, a second bending and forming punch, a third bending and forming punch, a first bending and forming bottom die, a second bending and forming bottom die and a third bending and forming bottom die. The first bending and forming punch, the second bending and forming punch and the third bending and forming punch are sequentially installed at the bottom of the second upper stripping plate 95 from left to right. The first bending and forming bottom die, the second bending and forming bottom die and the third bending and forming bottom die are sequentially installed at the top of the second lower template 96 from left to right. The first bending and forming punch and the first bending and forming bottom die, the second bending and forming punch and the second bending and forming bottom die, and the third bending and forming punch and the third bending and forming bottom die are respectively arranged in upper and lower correspondence.

[0039] Reference Figures 1 to 3 The first bending forming punch, the second bending forming punch, the third bending forming punch and the first bending forming bottom die, the second bending forming bottom die and the third bending forming bottom die are arranged, so that the bending forming can be completed multiple times, so that the bending process will not be too large at one time, which will cause cracks in the product.

[0040] Reference Figures 1 to 3 The bottom of the second upper stripping plate 95 is provided with a blanking punch, and the top of the second lower template 96 is provided with a blanking bottom die. The blanking punch is located on the right side of the third bending forming punch, and the blanking punch and the blanking bottom die are arranged correspondingly up and down. This arrangement ensures that the processed heat sink can be automatically blanked, thereby improving processing efficiency.

[0041] Reference Figures 1 to 5 . Working process: The material strip enters from the left side of the mold and is sent out from the right side of the mold, passing through the punching station, chamfering station, tapping station, first bending and forming station, second bending and forming station, third bending and forming station and blanking station in turn. The punching punch punches the material strip, the chamfering die head chamfers the material strip, and the tapping feeding assembly 8 taps the material strip. At the same time, each time a stamping is performed, the tapping feeding assembly 8 transports the material strip to the right by one station, and then passes through the first bending and forming punch, the second bending and forming punch, and the third bending and forming punch in turn to form the tapped material strip, and finally the blanking punch blanks the material strip.

[0042] The above is only a specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any non-substantial changes to the utility model using this concept shall be deemed as an infringement of the protection scope of the utility model.

Claims

1. A silicon controlled radiator in-mold tapping die, characterized in that: It includes an upper cover plate, an upper die base, a lower die base and multiple lower pads, the upper cover plate is installed on the top of the upper die base, the multiple lower pads are evenly installed on the bottom of the lower die base, outer guide sleeves are provided around the bottom of the upper die base, and outer guide pillars corresponding to the four outer guide sleeves are provided on the top of the lower die base. The outer guide pillars can be movably inserted into the outer guide sleeves up and down, and a punching assembly, a tapping feeding assembly and a bending forming assembly are provided between the upper die base and the lower die base from left to right.

2. The in-mold tapping mold for a thyristor heat sink as claimed in claim 1, characterized in that: The tapping and feeding assembly includes a tapping machine body, a positioning chuck, a screw rod, a screw rod sleeve, four tap components and a feeding component. Support bars are installed on both sides of the bottom of the tapping machine body. The middle of the support bar is provided with left and right through grooves. A tapping stripping plate is installed at the bottom of the support bar. A tapping splint is provided below the tapping stripping plate. The tapping splint is installed on the top of the lower die seat. Tapping guide columns are provided around the top of the tapping splint. The tapping stripping plate can be installed on the tapping guide columns so as to move up and down. The positioning chuck is installed at the bottom of the upper die seat. The top end of the screw rod is fixedly connected to the positioning chuck, the four tap components are evenly installed on the tapping machine body, and the upper and lower ends of the four tap components extend out of the top and bottom of the tapping machine body, the lower end of the screw rod passes through the rear side of the tapping machine body and can drive the four tap components to rotate forward and reversely, the screw rod sleeve is installed on the top of the lower die seat, the lower end of the screw rod can be placed in the screw rod sleeve, the bottom of the feeding component is installed on the top of the tapping clamp, the middle part of the feeding component is hinged to the middle part of the right side of the tapping stripping plate, and the tapping stripping plate can drive the feeding component to feed to the right.

3. The in-mold tapping mold for a thyristor heat sink as claimed in claim 2, characterized in that: The tap component includes a tap chuck, a tapping tap, a tapping gear and two bearings. The tapping tap is installed at the bottom of the tap chuck, the tapping gear is fixedly installed on the outer periphery of the tapping tap, the two bearings are fixedly installed outside the tapping tap, the tapping gear is located between the two bearings, the bearings of the four tap components are all installed in the tapping machine body, the tapping gears of the four tap components are meshed and transmitted in sequence respectively, a screw gear is also provided in the tapping machine body, the screw gear is sleeved outside the screw and is transmission-connected to the screw, and the screw gear is meshed and transmission-connected to the tapping gear nearest to it.

4. The in-mold tapping mold for a thyristor heat sink as claimed in claim 3, characterized in that: The feeding component includes a slider, a support seat and a connecting rod. The support seat is installed on the top right side of the tapping splint. The front and rear sides of the top of the support seat are installed with left and right sliding rails. The slider can be installed on the top of the sliding rail so as to slide left and right. The left and right ends of the connecting rod are respectively hinged to the right bottom of the tapping stripper plate and the left side of the sliding rail. A rebound unit is provided on the top of the sliding rail.

5. The in-mold tapping mold for a thyristor heat sink as claimed in claim 4, characterized in that: The rebound unit includes a rebound pin and a spring. A mounting blind hole is provided on the top of the slider. The lower end of the spring is installed on the bottom end of the blind hole. The upper end of the spring is connected to the bottom end of the rebound pin. The bottom of the rebound pin can be slid up and down on the mounting blind hole. The upper part of the rebound pin is provided with an inclined surface facing the left side.

6. The in-mold tapping mold for a thyristor heat sink as claimed in claim 5, characterized in that: The punching assembly includes a first upper backing plate, a first upper pad, a first upper clamping plate, a first stop plate, a first upper stripping plate, a first lower template and a first lower pad, the first upper backing plate is installed at the bottom of the upper die seat, the first upper pad is installed at the bottom of the first upper backing plate, the first upper clamping plate is installed at the bottom of the first upper pad, the bottom of the first upper clamping plate is installed with first inner guide pillars around, the bottom of the first stop plate is fixedly connected to the top of the first upper stripping plate, the first stop plate and the first upper stripping plate can be slidably installed on the first inner guide pillars up and down, and The first stop plate is located directly below the first upper clamping plate, the front and rear sides of the first upper clamping plate are both installed with first side hanging plates, the first lower pad is installed on the top of the lower die seat, the first lower template is installed on the top of the first lower pad, a plurality of punching punches are installed on the bottom of the first upper stripping plate, the first lower template is provided with a punch bottom mold corresponding to the plurality of punching punches, the lower template is also provided with four first inner guide holes matching with the corresponding four first inner guide columns, the bottom end of the first inner guide column can pass through the first cross arm and the upper stripping plate and fit into the corresponding first inner guide hole.

7. The in-mold tapping mold for a thyristor heat sink as claimed in claim 6, characterized in that: The bottom of the first upper stripping plate is also provided with four chamfering die heads, and the four chamfering die heads are located on the right side of the four punching punches. The first lower template is provided with four chamfering inner die holes that cooperate with the corresponding four chamfering punches.

8. The in-mold tapping mold for a thyristor heat sink as claimed in claim 5, characterized in that: The bending forming assembly includes a second upper backing plate, a second upper pad, a second upper clamping plate, a second stop plate, a second upper stripping plate, a second lower template and a second lower pad, the second upper backing plate is installed at the bottom of the upper mold base, the second upper pad is installed at the bottom of the second upper backing plate, the second upper clamping plate is installed at the bottom of the second upper pad, second inner guide pillars are installed around the bottom of the second upper clamping plate, the bottom of the second stop plate is fixedly connected to the top of the second upper stripping plate, the second stop plate and the second upper stripping plate can be slidably installed on the second inner guide pillars up and down, and the second The stop plate is located directly below the second upper clamp plate, and two second side hanging plates arranged at intervals on the left and right are installed on the front and rear sides of the second upper clamp plate, the second lower pad is installed on the top of the lower mold base, the second lower template is installed on the top of the second lower pad, and a bending forming module is installed on the bottom of the second upper stripping plate. The second lower template is provided with a bending forming bottom template that cooperates with the bending forming module, and the lower template is also provided with four second inner guide holes that cooperate with the corresponding four second inner guides, and the bottom end of the second inner guide column can pass through the second upper stripping plate and fit into the corresponding second inner guide hole.

9. The in-mold tapping mold for a thyristor heat sink as claimed in claim 8, characterized in that: The bending and forming module group includes a first bending and forming punch, a second bending and forming punch, a third bending and forming punch, a first bending and forming bottom die, a second bending and forming bottom die and a third bending and forming bottom die. The first bending and forming punch, the second bending and forming punch and the third bending and forming punch are installed on the bottom of the second upper stripping plate from left to right in sequence, and the first bending and forming bottom die, the second bending and forming bottom die and the third bending and forming bottom die are installed on the top of the second lower template in sequence from left to right. The first bending and forming punch and the first bending and forming bottom die, the second bending and forming punch and the second bending and forming bottom die, and the third bending and forming punch and the third bending and forming bottom die are respectively arranged in correspondence up and down.

10. The in-mold tapping mold for a thyristor heat sink as claimed in claim 9, characterized in that: A blanking punch is provided at the bottom of the second upper stripping plate, and a blanking bottom die is provided at the top of the second lower template. The blanking punch is located on the right side of the third bending forming punch, and the blanking punch and the blanking bottom die are arranged correspondingly up and down.

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