Connecting terminal cutting device

Abstract

The invention discloses a connecting terminal cutting device, and belongs to the technical field of cutting, the connecting terminal cutting device comprises an upper module, a lower module, a jacking assembly for driving the upper module to move downwards and a lifting assembly for driving the lower module to lift, the lower surface of the upper module is provided with an upper mold core, the upper surface of the lower module is provided with an upper mold core, and the upper mold core is provided with a mounting groove; a rotatable cam pressing block is mounted in the mounting groove; a lower cutter is installed on the lower die core, a cam ejector rod enabling the cam pressing block to rotate is further installed on the lower die core, the cam ejector rod is located on one side of the lower cutter, and an insertion hole enabling the cam ejector rod to be inserted into the installation groove is formed in the upper die core. The die assembly cutting device has the beneficial effects that during die assembly cutting, the connecting terminal can be pressed tightly through the cam material pressing block firstly, then cutting is completed, and therefore the cutting quality of the connecting terminal is guaranteed; and in addition, during feeding, the lower die set can move downwards firstly, space is provided for feeding of the material belt, continuous feeding is achieved, and the dismounting efficiency is improved.

Description

Technical Field

[0001] The invention relates to cutting of connecting terminals of connectors, in particular to a connecting terminal cutting device. Background Art

[0002] Connectors are usually composed of several parts and components, among which the core components include connecting terminals. During the production process, the connecting terminals are usually conveyed by strips, then stamped and formed on the strips several times, and then punched and separated from the strips to obtain independent connecting terminals.

[0003] Since the connecting terminals are usually not regular parts, such as the springs of the connecting terminals are bending mechanisms, it is difficult for conventional cutting devices to achieve continuous feeding of the connecting terminals. In addition, in order to improve production efficiency, the connecting terminals need to be cut continuously. Therefore, after the connecting terminals are cut, they need to be taken away. However, the current cutting devices have the following problems after cutting: 1. After cutting, the material cannot be taken directly and needs to be manually arranged and packaged again, resulting in low production efficiency; 2. The connection terminals are high-precision products. Free falling will cause the connection terminals to deform and become uncontrollable. Manual arrangement will also cause secondary contamination of the product, affecting its transmission performance. 3. The structure of the connection terminal is not on the same horizontal dimension as the material strip, which makes it inconvenient to feed the material strip continuously. Summary of the invention

[0004] The purpose of the present invention is to overcome the disadvantages of the prior art and provide a connecting terminal cutting device.

[0005] The object of the present invention is achieved through the following technical solutions: a connecting terminal cutting device, comprising an upper die set, a lower die set, a lifting assembly for driving the upper die set downward, and a lifting assembly for driving the lower die set upward and downward, an upper die core is installed on the lower surface of the upper die set, an upper die core is installed on the upper surface of the lower die set, a guide rod is also installed between the upper die core and the lower die core, a through material taking trough is provided on the upper die core, an upper tool is installed on the upper die core, the upper tool is located on the left side of the material taking trough, an installation groove is provided on the upper die core, the installation groove is located on the right side of the material taking trough, and the installation groove is connected to the material taking trough, a rotatable cam pressing block is installed in the installation groove, and the cam pressing block includes a lever, and the head of the lever A pressure head made of soft material is provided at the bottom of the lever, a rotating shaft is provided at the bottom corner of the lever, and both ends of the rotating shaft are rotatably mounted on the upper die core. An inwardly recessed inner groove is also provided on the inner side of the lever, and the rotating shaft passes through the inner groove. A torsion spring is also installed on the rotating shaft in the inner groove, and one torsion arm of the torsion spring abuts against the bottom of the inner groove, and the other torsion arm of the torsion spring abuts against the side wall of the mounting groove, and a rotatable roller is installed at the tail of the lever; a lower tool for cutting in cooperation with the upper tool is installed on the lower die core, and a cam push rod for rotating the cam pressing block is also installed on the lower die core, and the cam push rod is located on one side of the lower tool, and a socket for inserting the cam push rod into the mounting groove is provided on the upper die core.

[0006] Optionally, the upper mold core includes a first plate body and a second plate body that are detachably connected, the upper tool is installed between the first plate body and the second plate body, and the blade of the upper tool protrudes from the lower surface of the second plate body, the contact surfaces of the first plate body and the second plate body are both provided with grooves, and the two grooves constitute an installation groove, and the second plate body is provided with a socket for facilitating the insertion of the cam push rod.

[0007] Optionally, the lower mold core includes a detachable third plate body and a fourth plate body, the bottom of the lower tool and the cam push rod are installed between the third plate body and the fourth plate body, and a blanking groove is opened on the third plate body, which extends downward and passes through the fourth plate body, and the protruding part of the upper tool can be inserted into the blanking groove.

[0008] Optionally, a notch is provided on the third plate body near the blanking groove, slots are provided on both side walls of the notch, the lower tool is installed in the notch, and blocks cooperating with the slots are provided on both sides of the lower tool, a storage groove is provided on the side of the upper surface of the lower tool away from the cutting edge, a receiving groove is provided on the upper surface of the third plate body, the receiving groove is connected with the storage groove, the side wall of the receiving groove near the storage groove is a slope surface, a plurality of blocking blocks are provided on the slope surface, a flange is provided at the bottom of the lower tool, and the flange is pressed between the third plate body and the fourth plate body.

[0009] Optionally, at least two groups of elastic columns arranged at intervals are installed on the upper mold core, and at least one group of elastic columns is located on the front side of the upper tool, and at least one group of elastic columns is located on the rear side of the material trough.

[0010] Optionally, the lifting assembly includes a base and a translation cylinder, which is installed on the base. Guide grooves are arranged in pairs on the top of the base. The guide grooves extend in the left and right directions. Sliding rails are slidably fitted in the guide grooves. A moving plate is connected to one end of the sliding rail. The telescopic shaft of the translation cylinder is connected to the moving plate. A climbing slope is arranged on the sliding rail. Side plates are installed on the front and rear side walls of the lower mold core. Rolling bodies are installed on the side plates. When the sliding rails move left and right, the rolling bodies roll along the surface of the sliding rails.

[0011] Optionally, the jacking assembly includes a base plate, on which a lifting cylinder and a rotating support are installed. The rotating support is located on one side of the jacking cylinder, and a rotating plate is rotatably installed on the rotating support. One end of the rotating plate is located above the telescopic axis of the jacking cylinder, and the lifting of the jacking cylinder causes the rotating plate to rotate around the rotating support. The other end of the rotating plate is provided with cantilevers in pairs, and a rotatable lower pressure wheel is provided on the inner side of the cantilever. At least two lower pull rods are provided on the upper mold group, and the lower end of the lower pull rod passes through the lower mold group and is connected to a lower pull plate. A lower pull groove corresponding to the lower pressure wheel is opened on the lower pull plate, and the lower pressure wheel rolls in the lower pull groove.

[0012] Optionally, the upper mold assembly also includes an upper mold, the upper mold core is installed on the lower surface of the upper mold, and the lower mold assembly also includes a lower mold, the lower mold core is installed on the upper surface of the lower mold, the top of the lower pull rod is installed on the upper mold, the bottom of the lower pull rod passes through the lower mold and is connected to the lower pull plate, and at least two guide columns are provided on the upper mold, the bottom of the guide column passes through the lower mold, and a reset spring is also installed on the guide column located between the upper mold and the lower mold.

[0013] Optionally, a pre-positioning groove is further provided on the upper surface of the third plate body, the pre-positioning groove is a step groove, and the pre-positioning groove is located at the front end of the accommodating groove.

[0014] Optionally, a positioning column is also installed on the upper mold core, and the positioning column is located on the front side of the elastic column. A positioning hole corresponding to the positioning column is opened on the lower mold core.

[0015] The present invention has the following advantages: 1. The connection terminal cutting device of the present invention can first press the connection terminal by the cam pressing block during mold closing and cutting, and then complete the cutting, thereby ensuring the cutting quality of the connection terminal; 2. Through the lifting assembly and the jacking assembly, when feeding, the lower die set can be moved downward first to provide space for the feeding belt to feed the material, and then the lower die set is reset to achieve the matching of the connecting terminal and the lower die core, and then the upper die set is moved downward through the jacking assembly to achieve the clamping of the upper and lower die sets. Therefore, the connecting terminal cutting device can achieve continuous feeding and improve the disassembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a structural schematic diagram of a connecting terminal cutting device; Figure 2 is a cross-sectional schematic diagram of a connecting terminal cutting device; Figure 3 It is a structural diagram of the mold core; Figure 4 It is a schematic diagram of the structure of demoulding the upper mold core and the lower mold core; Figure 5 It is a structural schematic diagram of the upper mold core and the lower mold core closing the mold; Figure 6 It is a structural schematic diagram of the cam pressing block; Figure 7 It is a cross-sectional schematic diagram of the cam pressing block; Figure 8 It is a structural schematic diagram of the lower mold core; Fig. 9 The schematic diagram of the structure of the lower die core without the lower tool; Fig.10 for Fig. 9 The enlarged schematic diagram of point A in the middle; Fig.11 is a schematic diagram of the structure of the lower tool; Fig.12 Schematic diagram of the structure of the upper tool; Fig.13 It is a structural diagram of the upper mold core; Fig.14 It is the installation diagram of the elastic column; Fig.15 is a structural schematic diagram of a lifting assembly; Fig.16 It is a structural schematic diagram of the jacking assembly; In the figure, 10-upper mold core, 20-lower mold core, 30-guide rod, 11-first plate, 12-second plate, 13-cam pressing block, 14-upper tool, 15-installation groove, 16-feeding groove, 17-positioning column, 18-elastic column, 19-cover plate, 21-third plate, 22-fourth plate, 23-cam push rod, 24-lower tool, 25-feeding groove, 131-lever, 132-roller, 133-pressing head, 134-torsion spring, 135-rotating shaft, 136-inner groove, 141-limiting block, 142-convex ridge, 211-pre-positioning groove, 212-accommodating groove, 213-slope surface, 214-spacer block, 215-slot , 216-positioning hole, 241-block, 242-flange, 243-storage slot, 100-upper mold group, 200-lower mold group, 300-lifting assembly, 400-lifting assembly, 500-base, 101-upper mold plate, 102-reset spring, 103-guide column, 104-lower pull rod, 201-lower mold plate, 202-side plate, 203-rolling body, 301-translational cylinder, 302-moving plate, 303-sliding rail, 304-guide groove, 305-climbing slope, 401-lifting cylinder, 402-rotating plate, 403-rotating support, 404-cantilever, 405-lower pressure wheel, 406-pull-down plate, 407-pull-down groove. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions 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. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0019] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other.

[0020] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] like Figure 1 and Figure 2 As shown, a connecting terminal cutting device includes an upper die set 100, a lower die set 200, a lifting assembly 400 for driving the upper die set 100 downward, and a lifting assembly 300 for driving the lower die set 200 upward and downward. An upper die core 10 is installed on the lower surface of the upper die set 100, and an upper die core 10 is installed on the upper surface of the lower die set 200. The upper die core 10 and the lower die core 20 are die cores of the connecting terminal cutting device, as shown in FIG. Figure 3 As shown, a guide rod 30 is also installed between the upper die core 10 and the lower die core 20. Figure 3 , Figure 4 and Figure 5 As shown, the upper mold core 10 is provided with a through material taking groove 16, the upper mold core 10 is installed with an upper cutter 14, the upper cutter 14 is located on the left side of the material taking groove 16, the upper mold core 10 is provided with a mounting groove 15, the mounting groove 15 is located on the right side of the material taking groove 16, and the mounting groove 15 is connected to the material taking groove 16, and a rotatable cam pressing block 13 is installed in the mounting groove 15, as shown in FIG. Figure 6 and Figure 7As shown, the cam pressing block 13 includes a lever 131, a pressure head 133 made of soft material is provided at the head of the lever 131, a rotating shaft 135 is provided at the bottom corner of the lever 131, and both ends of the rotating shaft 135 are rotatably mounted on the upper mold core 10, and an inner groove 136 recessed inward is also provided on the inner side of the lever 131, and the rotating shaft 135 passes through the inner groove 136, and a torsion spring 134 is also installed on the rotating shaft 135 located in the inner groove 136, one torsion arm of the torsion spring 134 abuts against the bottom of the inner groove 136, and the other torsion arm of the torsion spring 134 abuts against the side wall of the mounting groove 15, and a rotatable roller 132 is installed at the tail of the lever 131; Figure 8 , Fig. 9 and Fig.10 As shown, the lower die core 20 is equipped with a lower tool 24 for cutting in cooperation with the upper tool 14. The lower die core 20 is also equipped with a cam push rod 23 for rotating the cam pressing block 13. The cam push rod 23 is located on one side of the lower tool 24. Figure 4 and Figure 5 As shown, the upper mold core 10 is provided with a plug hole for inserting the cam push rod 23 into the mounting groove 15. Figure 5 As shown, when the upper mold core 10 and the lower mold core 20 are molded together, the cam push rod 23 is inserted into the installation groove 15 from the insertion hole. When the cam push rod 23 contacts the roller 132, the cam push rod 23 applies a thrust to the roller 132, so that the lever 131 rotates around the rotating shaft 135, and then the pressure head 133 presses the middle part of the connecting terminal. When the lever 131 rotates, the torsion spring 134 generates a torsion force. When the upper mold core 10 and the lower mold core 20 are demolded, the lever 131 is reset under the action of the torsion spring 134. In this embodiment, as shown in FIG. Figure 4 As shown, a resisting surface is provided on the mounting groove 15. When the lever contacts the resisting surface under the torsion of the torsion spring 134, the lever 131 is completely located in the mounting groove 15. During the mold closing process, when the pressure head 133 contacts the middle part of the connecting terminal, the pressure head 133 presses the connecting terminal. Then, as the upper mold core 10 and the lower mold core 20 are molded, the pressure head 133 is deformed. Preferably, the pressure head 133 is made of rubber or silicone. The pressure head 133 is compressed by the deformation, so as to ensure that the pressure head 133 can continuously apply pressure to the connecting terminal, thereby ensuring the clamping force of the connecting terminal. Then, when the upper tool 14 is in contact with the lower mold core 20, the pressure head 133 is pressed. The lower tool 24 then moves relatively to separate the connecting terminal from the material strip to achieve cutting. Since the connecting terminal is pressed during the cutting process, the connecting terminal will not shake during the cutting process, thereby ensuring the cutting quality of the connecting terminal. Moreover, during demolding, since the pressure head 133 is made of soft material, the pressure of the pressure head 133 on the connecting terminal is gradually reduced, so that the connecting terminal will not suddenly lose pressure, thereby ensuring that the connecting terminal will not shake, avoiding collision of the connecting terminal, ensuring that the position of the connecting terminal is fixed, and facilitating the grabbing of the connecting terminal.

[0024] In this embodiment, if Figure 5 As shown, after the ram 133 contacts the middle of the connector, as the mold is closed, the upper mold assembly 100 continues to move downward. Preferably, before the mold is closed, the roller 132 rolls from the top of the cam push rod 23 to the side wall of the cam push rod 23. At this time, although the upper mold assembly 100 moves downward, the roller 132 has rolled to the side wall of the cam push rod 23, and the pressing force of the ram 133 on the connecting terminal remains constant, thereby preventing the ram 133 from crushing the connecting terminal and preventing the ram 133 from being damaged due to excessive deformation, thereby ensuring the service life of the ram 133.

[0025] In this embodiment, if Figure 4 and Figure 5 As shown, the upper mold core 10 includes a first plate body 11 and a second plate body 12 that are detachably connected. Preferably, the first plate body 11 and the second plate body 12 are detachably connected by locking screws. The upper cutter 14 is installed between the first plate body 11 and the second plate body 12, and the blade of the upper cutter 14 protrudes from the lower surface of the second plate body 12. Further, as shown Fig.12 As shown, a limit stop 141 is provided on the top of the upper tool 14, and ridges 142 are provided on both sides of the upper tool 14, and a notch matching the upper tool 14 and a limit groove matching the ridge 142 are provided on the second plate body 12, and a groove corresponding to the limit stop 141 is provided at the bottom of the first plate body 11. When the first plate body 11 and the second plate body 12 are installed, the limit stop 141 is stuck in the groove, and the ridge 142 is stuck in the limit groove, thereby avoiding relative displacement between the upper tool 14 and the upper mold core 10.

[0026] In this embodiment, if Figure 4 and Figure 5 As shown, the contact surfaces of the first plate 11 and the second plate 12 are provided with grooves, and the two grooves constitute the mounting groove 15. The second plate 12 is provided with a plug hole for inserting the cam push rod 23. Further, as shown in FIG. Fig.13 As shown, the groove on the second plate body 12 is a through groove that passes through in the up and down directions, and then the bottom of the groove is covered by a cover plate 19, and a plug hole is opened on the cover plate 19. The cover plate 19 and the second plate body 12 are locked by locking screws. When the cover plate 19 is installed, the cover plate 19 does not protrude from the lower surface of the second plate body 12, and the corresponding torsion arm on the torsion spring 134 abuts against the cover plate 19.

[0027] In this embodiment, if Figure 8 and Fig. 9As shown, the lower mold core 20 includes a detachable third plate body 21 and a fourth plate body 22, and the third plate body 21 and the fourth plate body 22 are also detachably connected by locking screws. The lower tool 24 and the bottom of the cam push rod 23 are installed between the third plate body 21 and the fourth plate body 22. A blanking groove 25 is opened on the third plate body 21, and the blanking groove 25 extends downward and passes through the fourth plate body 22, and the protruding part of the upper tool 14 can be inserted into the blanking groove 25. Therefore, when the mold is closed, the upper tool 14 enters the blanking groove 25, and the cut end of the connecting terminal is received by the lower tool 24, thereby avoiding deformation of the cut end of the connecting terminal.

[0028] In this embodiment, if Fig. 9 and Fig.10 As shown, a notch is formed on the third plate 21 near the blanking groove 25, and slots 215 are formed on the two side walls of the notch. The lower cutter 24 is installed in the notch. Fig.11 As shown, the two sides of the lower cutter 24 are provided with blocks 241 that cooperate with the slot 215, and the upper surface of the lower cutter 24 is provided with a storage groove 243 on the side away from the cutting edge. Fig.10 As shown, the upper surface of the third plate body 21 is provided with a receiving groove 212, and the receiving groove 212 is connected with the storage groove 243. The side wall of the receiving groove 212 close to the storage groove 243 is a slope surface 213, and a plurality of blocking blocks 214 are provided on the slope surface 213, thereby forming a plurality of separation grooves on the slope surface 213. The bottom of the lower tool 24 is provided with a flange 242, and the flange 242 is pressed between the third plate body 21 and the fourth plate body 22. In this embodiment, a section of the material strip has a plurality of parallel connection Before cutting, the middle of the connecting terminal is located in the storage groove 243, and the shape of the storage groove 243 is set according to the shape and size of the middle of the connecting terminal, and the end of the spring piece of the connecting terminal is located in the receiving groove 212, and the two adjacent connecting terminals are separated by the blocking block 214, thereby avoiding collision between the connecting terminals, and during feeding, the relative position between the two connecting terminals can also be guaranteed, so that the spring pieces of the connecting terminals can independently enter the corresponding separation grooves.

[0029] In this embodiment, if Fig.14As shown, at least two groups of elastic columns 18 are also installed on the upper mold core 10, and at least one group of elastic columns 18 is located on the front side of the upper tool 14, and at least one group of elastic columns 18 is located on the rear side of the material trough 16. The elastic columns 18 include step columns, compression springs and plugs. A step hole is opened on the second plate body 12, and the step column is installed in the step hole. A corresponding through hole is opened on the first plate body 11, and a plug is installed in the through hole. Preferably, the plug is threadedly connected to the through hole, and the compression spring is compressed between the step column and the plug. When the mold is closed, the elastic columns 18 press the material strip so that the material strip does not move, thereby ensuring the problem of connecting terminals on the material strip. Preferably, each group of elastic columns 18 has two, and then when the mold is closed, the four corners of the material strip can be pressed, thereby preventing the material strip from moving, thereby ensuring the cutting quality of the connecting terminals.

[0030] In this embodiment, since the connection terminals and the material strip are not on the same horizontal dimension, it is difficult to feed the connection terminals during the horizontal movement of the material strip. Fig.15 As shown, the lifting assembly 300 includes a base 500 and a translation cylinder 301, the translation cylinder 301 is installed on the base 500, and the top of the base 500 is provided with a pair of guide grooves 304, the guide grooves 304 extend in the left and right directions, and a sliding rail 303 is slidably matched in the guide groove 304, one end of the sliding rail 303 is connected to a moving plate 302, the telescopic shaft of the translation cylinder 301 is connected to the moving plate 302, and a climbing slope 305 is provided on the sliding rail 303. Side plates 202 are installed on the front and rear side walls of the lower mold core 20, and rolling bodies 203 are installed on the side plates 202. When the sliding rail 303 moves left and right, the rolling bodies 203 roll along the surface of the sliding rail 303. Since the sliding rail 303 has a climbing slope 305, the sliding rail 303 has an upper rail surface and a lower rail surface. When the rolling body 203 moves from the lower rail surface to the upper rail surface, the lower mold assembly 200 rises, and when the rolling body 203 moves from the upper rail surface to the lower rail surface, the lower mold assembly 200 descends. Therefore, when feeding, the rolling body 203 is located on the lower rail surface. At this time, the lower mold assembly 200 is in the downstroke, so that the lower mold core 20 is away from the material belt, thereby making room for the forward and backward movement of the connecting terminal. After the material belt drives the connecting terminal to enter the cutting station, the translation cylinder 301 works again, so that the rolling body 203 moves from the lower rail surface to the upper rail surface. At this time, the lower mold assembly 200 moves upward, so that the middle part of the connecting terminal enters the storage groove 243, and the spring piece of the connecting terminal is located in the dividing groove, thereby realizing the continuous feeding of the connecting terminal driven by the material belt, thereby ensuring the cutting efficiency of the connecting terminal.

[0031] In this embodiment, if Fig.16As shown, the lifting assembly 400 includes a base plate, on which a lifting cylinder 401 and a rotating support 403 are installed. The rotating support 403 is located on one side of the lifting cylinder 401, and a rotating plate 402 is rotatably installed on the rotating support 403. One end of the rotating plate 402 is located above the telescopic axis of the lifting cylinder 401, and the lifting of the lifting cylinder 401 causes the rotating plate 402 to rotate around the rotating support 403. The other end of the rotating plate 402 is provided with a pair of cantilevers 404, and a rotatable lower pressure wheel 405 is provided on the inner side of the cantilever 404. At least two lower pull rods 104 are provided on the upper mold assembly 100, and the lower ends of the lower pull rods 104 pass through the lower mold assembly 200 and are connected to a lower pull rod 104. The pull-down plate 406 is connected, and a pull-down groove 407 corresponding to the lower pressure wheel 405 is provided on the pull-down plate 406, and the lower pressure wheel 405 rolls in the pull-down groove 407. When the piston rod of the jacking assembly 400 is extended, the rotating plate 402 rotates around the rotating support 403, and the other end of the rotating plate 402 swings downward. In the process of the lower pressure wheel 405 swinging downward, while rolling along the pull-down groove 407, it also applies a downward pulling force to the pull-down plate 406, thereby causing the pull-down plate 406 to move downward. After the pull-down plate 406 moves downward, the upper mold assembly 100 is driven downward through the pull-down rod 104, thereby realizing the mold closing of the upper mold assembly 100 and the lower mold assembly 200, and completing the cutting of the connecting terminal.

[0032] In this embodiment, the upper mold assembly 100 also includes an upper mold plate 101, and the upper mold core 10 is installed on the lower surface of the upper mold plate 101. The lower mold assembly 200 also includes a lower mold plate 201, and the lower mold core 20 is installed on the upper surface of the lower mold plate 201. The top of the lower pull rod 104 is installed on the upper mold plate 101, and the bottom of the lower pull rod 104 passes through the lower mold plate 201 and is connected to the lower pull plate 406. At least two guide columns 103 are also provided on the upper mold plate 101. The bottom of the guide column 103 passes through the lower mold plate 201. The guide column 103 located between the upper mold plate 101 and the lower mold plate 201 is also provided with a reset spring 102. When the upper mold plate 101 is in the downward process, the reset spring 102 is compressed, and when the lifting cylinder 401 is reset, the upper mold assembly 100 is in the reset spring. The upper die assembly 100 and the lower die assembly 200 are demoulded by the return spring 102. After the return spring 102 is installed, the return spring 102 is in a compressed state. When the upper die assembly 100 is stationary, when the rolling body 203 moves from the upper rail surface to the lower rail surface, the return spring 102 will also exert a downward pressure on the lower die assembly 200, causing the lower die assembly 200 to move downward, thereby ensuring the reliability of the downward movement of the lower die assembly 200. In the initial state, although the return spring 102 can also exert an upward thrust on the upper die assembly 100, after the thrust is transmitted to the lower pressure wheel 405 through the lower pull-down groove 407 on the lower pull-down plate 406, one end of the rotating plate 402 is in contact with the telescopic shaft of the lifting cylinder 401, thereby preventing the upper die assembly 100 from moving upward in the initial state.

[0033] In this embodiment, a pre-positioning groove 211 is further provided on the upper surface of the third plate body 21. The pre-positioning groove 211 is a step groove, and the pre-positioning groove 211 is located at the front end of the accommodating groove 212. When the upper section of the material strip is cut, the connecting terminal of the next section of the material strip is located in the pre-positioning groove 211. In this way, the blank area of ​​the two sections of the material strip can be shortened, thereby saving raw materials.

[0034] In this embodiment, a positioning column 17 is also installed on the upper mold core 10, and the positioning column 17 is located on the front side of the elastic column 18. A positioning hole 216 corresponding to the positioning column 17 is opened on the lower mold core 20. Through the positioning column 17 and the positioning hole 216, the accuracy of the mold closing between the upper mold core 10 and the lower mold core 20 can be further ensured, thereby ensuring the quality of the cutting of the connecting terminal.

[0035] In this embodiment, one end of the material belt is a belt unwinding mechanism, and the other end of the material belt is a traction mechanism. Both the belt unwinding mechanism and the traction mechanism are prior arts, and thus will not be described in detail.

[0036] The working process of the present invention is as follows: the material belt moves backward under the action of the traction mechanism. When the lower mold 200 needs to feed, the translation cylinder 301 works to move the rolling body 203 from the upper rail surface to the lower rail surface. When the rolling body 203 rolls down on the climbing slope 305, the lower mold 200 moves downward, thereby driving the lower mold core 20 downward, so that the material belt is separated from the lower mold core 20, thereby making room for the feeding of the connecting terminal. Then the traction mechanism works to make the connecting terminal on the material belt enter the cutting station, and then the translation cylinder 301 is reset, and the rolling body 203 is moved downward. The moving body 203 rolls from the lower rail surface to the upper rail surface, and the lower mold assembly 200 moves upward, so that the connecting terminal enters the corresponding accommodating groove 212 and the storage groove 243, and then the lifting cylinder 401 moves upward, and the rotating plate 402 rotates, so that the lower pressure wheel 405 applies a downward pulling force to the lower pressure plate, and the lower pressure plate moves downward, so that the return spring 102 is further compressed. During the downward movement of the lower pressure plate, the upper mold assembly 100 also moves downward, so that the upper mold assembly 100 and the lower mold assembly 200 are molded together. When the mold is closed, the cam push rod 23 is first inserted into the jack and then contacts the roller 132, so that The lever 131 rotates, so that the pressure head 133 gradually approaches the middle of the connecting terminal. When the pressure head 133 contacts the middle of the connecting terminal, as the mold is closed, the pressure head 133 continuously applies pressure to the middle of the connecting terminal, thereby ensuring the clamping force of the connecting terminal and preventing the connecting terminal from moving during cutting, thereby ensuring the cutting quality. After the mold is closed, the upper tool 14 and the lower tool 24 cooperate to cut the connecting terminal and the material strip, and then the lifting cylinder 401 is reset. During the reset process, the upper mold assembly 100 is elastically reset by the reset spring 102. Under the action of the restoring force, the upper mold group 100 moves upward and drives the pull-down plate 406 upward, so that the rotating plate 402 rotates in the opposite direction. When the other end of the rotating plate 402 abuts against the telescopic rod of the lifting cylinder 401, the upper mold group 100 stops moving upward. At this time, the upper mold group 100 returns to the initial state, and the upper mold group 100 and the lower mold group 200 are demolded. At this time, the connecting terminal is located on the lower mold core 20, and then a tool is inserted from the material trough 16 to clamp the connecting terminal, so that the connecting terminal can be taken out from the material trough 16, and then the next cutting can be carried out.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A connecting terminal cutting device, characterized in that: The invention comprises an upper die set, a lower die set, a lifting assembly for driving the upper die set downward, and a lifting assembly for driving the lower die set upward and downward, an upper die core is installed on the lower surface of the upper die set, an upper die core is installed on the upper surface of the lower die set, a guide rod is also installed between the upper die core and the lower die core, a through material taking trough is provided on the upper die core, an upper tool is installed on the upper die core, the upper tool is located on the left side of the material taking trough, an installation groove is provided on the upper die core, the installation groove is located on the right side of the material taking trough, and the installation groove is connected with the material taking trough, a rotatable cam pressing block is installed in the installation groove, the cam pressing block comprises a lever, the head of the lever is provided with a pressing head made of soft material, the lever A rotating shaft is provided at the bottom corner, and both ends of the rotating shaft are rotatably mounted on the upper die core. An inwardly recessed inner groove is also provided on the inner side of the lever, and the rotating shaft passes through the inner groove. A torsion spring is also installed on the rotating shaft located in the inner groove, and one torsion arm of the torsion spring abuts against the bottom of the inner groove, and the other torsion arm of the torsion spring abuts against the side wall of the mounting groove, and a rotatable roller is installed at the tail of the lever; a lower tool for cutting in cooperation with the upper tool is installed on the lower die core, and a cam push rod for rotating the cam pressing block is also installed on the lower die core, and the cam push rod is located on one side of the lower tool, and a socket for inserting the cam push rod into the mounting groove is provided on the upper die core.

2. A connecting terminal cutting device according to claim 1, characterized in that: The upper mold core includes a first plate body and a second plate body that are detachably connected, the upper tool is installed between the first plate body and the second plate body, and the blade of the upper tool protrudes from the lower surface of the second plate body, the contact surfaces of the first plate body and the second plate body are both provided with grooves, and the two grooves constitute a mounting groove, and the second plate body is provided with a socket for facilitating the insertion of the cam push rod.

3. A connecting terminal cutting device according to claim 2, characterized in that: The lower mold core includes a detachable third plate body and a fourth plate body, the bottom of the lower tool and the cam push rod are installed between the third plate body and the fourth plate body, and a blanking groove is opened on the third plate body. The blanking groove extends downward and passes through the fourth plate body, and the protruding part of the upper tool can be inserted into the blanking groove.

4. A connecting terminal cutting device according to claim 3, characterized in that: The third plate body is provided with a notch near the blanking groove, and slots are provided on both side walls of the notch. The lower tool is mounted in the notch, and blocks cooperating with the slots are provided on both sides of the lower tool. A storage groove is provided on the side of the upper surface of the lower tool away from the cutting edge, and a receiving groove is provided on the upper surface of the third plate body, and the receiving groove is connected with the storage groove. The side wall of the receiving groove near the storage groove is a slope surface, and a plurality of blocking blocks are provided on the slope surface. A flange is provided at the bottom of the lower tool, and the flange is pressed between the third plate body and the fourth plate body.

5. A connecting terminal cutting device according to claim 4, characterized in that: At least two groups of elastic columns arranged at intervals are also installed on the upper mold core, and at least one group of elastic columns is located on the front side of the upper tool, and at least one group of elastic columns is located on the rear side of the material taking trough.

6. A connecting terminal cutting device according to any one of claims 1 to 5, characterized in that: The lifting assembly includes a base and a translation cylinder, which is installed on the base. The top of the base is provided with guide grooves in pairs, which extend in the left and right directions. A sliding rail is slidably fitted in the guide groove, and a movable plate is connected to one end of the sliding rail. The telescopic shaft of the translation cylinder is connected to the movable plate. A climbing slope is provided on the sliding rail. Side plates are installed on the front and rear side walls of the lower mold core, and rolling bodies are installed on the side plates. When the sliding rail moves left and right, the rolling bodies roll along the surface of the sliding rail.

7. A connecting terminal cutting device according to claim 6, characterized in that: The jacking assembly includes a base plate, on which a lifting cylinder and a rotating support are installed, the rotating support is located on one side of the lifting cylinder, and a rotating plate is rotatably installed on the rotating support, one end of the rotating plate is located above the telescopic axis of the lifting cylinder, and the lifting of the lifting cylinder causes the rotating plate to rotate around the rotating support, and the other end of the rotating plate is provided with cantilevers in pairs, and a rotatable lower pressure wheel is provided on the inner side of the cantilever, at least two lower pull rods are provided on the upper mold group, the lower ends of the lower pull rods pass through the lower mold group and are connected to a lower pull plate, and a lower pull groove corresponding to the lower pressure wheel is opened on the lower pull plate, and the lower pressure wheel rolls in the lower pull groove.

8. A connecting terminal cutting device according to claim 7, characterized in that: The upper mold assembly also includes an upper mold, and the upper mold core is installed on the lower surface of the upper mold. The lower mold assembly also includes a lower mold, and the lower mold core is installed on the upper surface of the lower mold. The top of the lower pull rod is installed on the upper mold, and the bottom of the lower pull rod passes through the lower mold and is connected to the lower pull plate. At least two guide columns are also provided on the upper mold, and the bottom of the guide column passes through the lower mold. A reset spring is also installed on the guide column located between the upper mold and the lower mold.

9. The connecting terminal cutting device according to claim 5, characterized in that: The upper surface of the third plate body is also provided with a pre-positioning groove, the pre-positioning groove is a step groove, and the pre-positioning groove is located at the front end of the accommodating groove.

10. The connecting terminal cutting device according to claim 5, characterized in that: A positioning column is also installed on the upper die core, and the positioning column is located on the front side of the elastic column. A positioning hole corresponding to the positioning column is opened on the lower die core.

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