Terminal stamping and cutting device

Abstract

The invention relates to the technical field of stamping and cutting devices, in particular to a terminal stamping and cutting device. Comprising a workbench and a cutting mechanism arranged on the workbench through a mounting frame, a cavity is formed in the workbench, partition plates which are vertically distributed at intervals are arranged on the top wall of the cavity, a cavity is formed between every two adjacent partition plates, punching holes are communicated with the corresponding cavities, and negative pressure plates are arranged in the cavities. A frame is arranged on the workbench in a matched mode, a pressing block is arranged at one end of the frame in a floating mode, strip-shaped holes are formed in the two sides of the outer portion of the groove, the frame slidably penetrates through the strip-shaped holes in a matched mode, first track grooves forming a closed loop are formed in the side walls of the strip-shaped holes, and protrusions moving in the first track grooves in a matched mode are arranged on the frame. A power piece for driving the frame to move front and back is arranged in the cavity, and the negative pressure plate is driven to vertically move back and forth in the cavity while the frame moves. By means of the stamping and cutting device, machined materials are smoother, the subsequent stamping and cutting effect is improved, and the overall yield is increased.

Description

Technical Field

[0001] The invention relates to the technical field of punching and cutting devices, in particular to a terminal punching and cutting device. Background Art

[0002] In electrical engineering, terminals mostly refer to wiring terminals, that is, wiring terminals. This type of terminal has a variety of forms such as single-hole, double-hole, socket, hook, etc., and there are also many choices of materials, such as silver-plated copper, zinc-plated copper, copper, aluminum, iron, etc. Its main function is to transmit electrical signals or conduct electricity. The production process of terminals usually includes metal stamping, injection molding and other steps. Terminal stamping refers to the use of stamping equipment and molds to apply pressure to metal sheets to cause plastic deformation, so as to obtain terminal products of the desired shape and size.

[0003] The Chinese patent application document with publication number CN110860607A discloses a high-efficiency terminal stamping die, in which the punch includes a cutting die, a punching die, a bending die and a breaking die, and the lower die core is provided with a concave die compatible with the punch. During processing, the cutting die, the punching die and the bending die perform cutting, punching and bending processing in sequence, and then the breaking die breaks the processed terminal. The broken terminal falls on a transfer plate under the push of subsequent terminals. The transfer plate rotates under the action of a driving motor and drives the terminal to be transferred. When the terminal is transferred to the scraper assembly, the terminal is scraped off the transfer plate by the scraper assembly and falls into a receiving box to be collected, thereby realizing the continuous execution of the terminal cutting, punching, bending and collection processes.

[0004] In actual use, since the material used to constitute the terminal is generally very thin copper or aluminum sheet, when the copper or aluminum sheet is moved for punching, punching and bending operations, and when it is moved to the punching die to punch out the processed terminal, since the stamped terminal is still connected to the copper or aluminum sheet, during the movement of the terminal, it is easy to cause the copper or aluminum sheet to be punched to shake, or even bulge, which affects the stamping and cutting effect, and may result in incomplete stamping, increased burrs on the punching edge, etc., thereby affecting the subsequent punching accuracy and yield rate. Summary of the invention

[0005] The invention provides a terminal punching and cutting device to solve the technical problem in the prior art that when the terminal is punched and cut, the material is unstable, thus affecting the accuracy and yield of subsequent punching.

[0006] In order to solve the above problems, the present invention provides a terminal punching and cutting device adopting the following technical solution: It includes a workbench and a cutting mechanism installed on the workbench, the workbench is provided with a groove for limiting the placement of terminals, the groove is provided with a punching hole, a chamber is formed in the workbench, the top wall of the chamber is provided with vertically spaced partitions, a cavity is formed between adjacent partitions, the punching holes are connected with the corresponding cavities, a negative pressure plate is provided in the cavity, the negative pressure plate includes a first plate and a second plate, the opposite ends of the first plate and the second plate abut against each other, the other ends of the first plate and the second plate are hinged in the cavity through a hinge rod, the two ends of the hinge rod are slidably connected to the side walls of the cavity, the negative pressure plate moves vertically back and forth in the cavity, and when moving upward, the first plate and the second plate flip open, and when moving downward, the first plate and the second plate move downward synchronously to form a slight negative pressure in the cavity.

[0007] The workbench is provided with a frame, one end of the frame is floatingly provided with a pressure block, both sides of the outside of the groove are provided with strip holes, the frame slides through the strip holes, the side walls of the strip holes are provided with a first track groove forming a closed loop, the frame is provided with a protrusion that cooperates to move in the first track groove, and the chamber is provided with a power part that drives the frame to move forward and backward. When the frame moves forward and backward, the protrusion moves in the first track groove so that the frame is vertically displaced away from one end of the pressure block, and the frame moves, driving the negative pressure plate to move vertically back and forth in the cavity.

[0008] By adopting the above technical scheme, when the terminal is stamped, on the one hand, the movement of the frame drives the pressing block to perform a flattening operation. The movement of the frame drives the pressing block to flatten the processed material, making the processed material smoother and improving the subsequent stamping and cutting effect. On the other hand, the negative pressure plate moves back and forth vertically. When moving downward, the first plate and the second plate move downward synchronously to form a slight negative pressure in the cavity, which assists in adsorbing the processed material on the surface of the groove to avoid the processing material from being unevenly arched. On the other hand, it is convenient to adsorb and collect waste materials. When moving upward, the first plate and the second plate flip open to facilitate the discharge of waste materials.

[0009] Furthermore, a connecting block is provided below one end of the first plate and the second plate which are close to each other, and a connecting member is connected below the connecting block. The connecting member includes a connecting plate, an inner rod and an outer rod. The outer rod is rotatably mounted on the inner rod, and the connecting plates are two connected plates which are fixedly mounted on the inner rod and the outer rod respectively. The two connecting blocks are hinged to the two connecting plates through torsion springs.

[0010] A second track groove forming a closed loop is provided on the side wall of the frame, and the end of the inner rod away from the connecting plate is cooperated in the second track groove. The outer walls of the inner rod and the outer rod at one end close to the second track groove are circumferentially provided with teeth, and the second track groove is provided with an upper rack and a lower rack for driving the inner rod and the outer rod to rotate in opposite directions respectively.

[0011] The above technical solution is adopted, through the action of the upper rack and the lower rack in conjunction with the teeth on the outside of the inner rod and the outer rod, to achieve driving the inner rod and the outer rod to rotate in the opposite direction during the movement, and finally drive the first plate and the second plate to flip open. Through the torsion spring hinge, when the inner rod and the outer rod lose the rotational force, the first plate and the second plate can automatically reset, and the negative pressure plate is more flexible when moving up and down, ensuring that the waste can be discharged smoothly. At the same time, the addition of the torsion spring also provides a reliable guarantee for the reset of the negative pressure plate.

[0012] Furthermore, the first track groove and the second track groove are both triangular closed-loop grooves, the first track groove comprises a first transverse groove, a first vertical groove and a first oblique groove, and the first vertical groove and the first transverse groove are both inclined.

[0013] The second track groove includes a second transverse groove, a second vertical groove and a second oblique groove. The second vertical groove is vertically arranged to the second transverse groove. A slope gradually inclined from bottom to top is arranged in the second vertical groove. The groove depth of the second oblique groove is less than the groove depth of the second transverse groove.

[0014] By adopting the above technical solution, by designing the specific shape and configuration of the first track groove and the second track groove, and through the cooperation of the first track groove and the second track groove, the movement and resetting process of the frame on the workbench can be accurately controlled, and at the same time, the negative pressure plate can be controlled to move back and forth stably up and down.

[0015] Furthermore, an L-shaped plate is rotatably sleeved on the outer rod, a slider is floatingly connected to the bottom end of the L-shaped plate, a slide rail is provided at the lower end of the side plate of the frame, and the slider is slidably arranged in the slide rail.

[0016] By adopting the above technical solution, the L-shaped plate is rotatably mounted on the outer rod, and is slidably connected to the slide rail at the lower end of the frame side plate through the slider at its bottom end. This structural design greatly enhances the stability of the entire system.

[0017] Furthermore, the cutting mechanism includes a telescopic member which is arranged on the mounting frame and telescopically extends and contracts vertically, and a stamping plate assembled on the telescopic member, wherein the stamping plate is provided with a stamping knife corresponding to the stamping hole, and the stamping knife is vertically aligned with the stamping hole.

[0018] The frame comprises a top plate and a avoidance hole for avoiding the punching knife is arranged on the top plate.

[0019] Furthermore, a plurality of buffer members are provided between the stamping plate and the workbench, and the buffer members include a buffer cylinder installed on the workbench, a buffer rod corresponding to the buffer cylinder is provided on the stamping plate, and a buffer spring is provided in the buffer cylinder.

[0020] Furthermore, the pressing block is arranged below one end of the top plate of the frame, the pressing block is fixed to the lower end surface of the top plate by a first spring, and the lower end surface of the pressing block is in an arc shape.

[0021] By adopting the above technical solution, the floating connection is realized by the first spring, and the bottom end surface is set to an arc shape, so that the pressure block can reduce the interference with the moving material when contacting the processing material. This design reduces the contact stress concentration between the pressure block and the processing material, and avoids the deformation or damage of the material caused by excessive local pressure. At the same time, the arc design also enables the pressure block to slide more smoothly over the surface of the processing material during the movement process, thereby improving the processing efficiency.

[0022] Furthermore, the workbench also includes a trapezoidal table for placing processed terminals, and a reel for placing processed materials is provided on one side of the workbench away from the trapezoidal table.

[0023] The beneficial effects of the present invention are as follows: when stamping the terminal, on the one hand, the movement of the frame drives the pressing block to perform a flattening operation, and the movement of the frame drives the pressing block to flatten the processed material, thereby improving the subsequent stamping and cutting effect and the overall yield rate. On the other hand, the negative pressure plate moves back and forth vertically, and when moving downward, the first plate and the second plate move downward synchronously to form a slight negative pressure in the cavity, which assists in adsorbing the processed material on the surface of the groove to avoid the unevenness of the processed material. On the other hand, it is convenient to absorb and collect waste materials. When moving upward, the first plate and the second plate flip open to facilitate the discharge of waste materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein: Figure 1 It is a structural schematic diagram of the terminal punching and cutting device of the present invention; Figure 2 for Figure 1 A partial enlarged view of the middle area A; Figure 3 It is a front cross-sectional view of the terminal punching and cutting device of the present invention; Figure 4 for Figure 3 A partial enlarged view of the middle area F; Figure 5 It is a side sectional view of the terminal punching and cutting device of the present invention; Figure 6 for Figure 5 A partial enlarged view of the middle area M; Figure 7 This is one of the structural schematic diagrams of the cooperation of the frame, the pressing piece, the negative pressure plate, and the connecting piece in the present invention; Figure 8This is the second structural diagram of the coordination of the frame, the pressing piece, the negative pressure plate and the connecting piece in the present invention; Fig. 9 for Figure 8 A partial enlarged view of the middle area B; Fig.10 It is a structural schematic diagram of the connecting member in the present invention; Fig.11 A partial front cross-sectional view of the terminal punching and cutting device of the present invention; Fig.12 for Fig.11 A partial enlarged view of area C in the middle.

[0025] Description of reference numerals: 100, processing materials; 200, terminals; 1. workbench; 11. base; 12. processing table; 121. chamber; 122. cavity; 1221. slide; 123. groove; 124. punching hole; 125. strip hole; 1251. first track groove; 1251a. first transverse groove; 1251b. first vertical groove; 1251c. first slant groove; 13. trapezoidal table; 2. mounting frame; 3. cutting mechanism; 31. telescopic member; 32. punching plate; 33. punching knife; 4. frame; 41. top plate; 411. avoidance hole; 42. side plate; 421. second track groove; 421a. second transverse groove; 421a1. upper rack; 421a2. lower rack; 421b. second vertical groove; 421c. second slant groove; 4 22. protrusion; 423. slide rail; 43. connecting auxiliary plate; 5. pressure piece; 51. first spring; 52. pressure block; 6. power piece; 7. negative pressure plate; 71. first plate; 72. second plate; 73. hinged rod; 8. connecting piece; 81. connecting block; 811. first connecting block; 812. second connecting block; 82. connecting plate; 821. first connecting plate; 822. second connecting plate; 83. inner rod; 831. first gear; 84. outer rod; 841. second gear; 85. second spring; 86. limit block; 87. L-shaped plate; 88. third spring; 89. slider; 9. buffer piece; 91. buffer cylinder; 911. buffer spring; 92. buffer rod; 10. reel. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0027] Any number of elements in the drawings is for illustration and not limitation, and any naming is for distinction only and does not have any limiting meaning.

[0028] The principle and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0029] Embodiments of the terminal punching and cutting device provided by the present invention: like Figures 1 to 12 As shown, it includes a workbench 1, a mounting frame 2, a cutting mechanism 3, a frame 4, a pressing member 5, a negative pressure plate 7, a connecting member 8, a buffer member 9 and a reel 10.

[0030] The cutting mechanism 3 is arranged on the workbench 1 through the mounting frame 2, the frame 4 is arranged on the workbench 1, and the pressing member 5 is arranged on the frame 4. The workbench 1 is provided with a groove 123 for limiting the placement of the terminal 200, and a punching hole 124 is arranged in the groove 123. A chamber 121 is formed in the workbench 1, and the top wall of the chamber 121 is provided with partitions distributed vertically at intervals, and cavities 122 are formed between adjacent partitions. The punching hole 124 is connected with the corresponding cavity 122. The negative pressure plate 7 is arranged in the cavity 122, the connecting member 8 is arranged below the negative pressure plate 7, the buffer member 9 is arranged between the cutting mechanism 3 and the workbench 1, and the reel 10 is arranged at one end of the workbench 1.

[0031] In this embodiment, the workbench 1 also includes a trapezoidal table 13 for placing the processed terminals 200, the reel 10 is arranged on the side of the workbench 1 away from the trapezoidal table 13 and is used to place the processed terminals 200, the workbench 1 includes a processing table 12 and a base 11 and is used to stamp and cut the processing material 100.

[0032] Specifically, the groove 123 is disposed on the processing table 12, and strip holes 125 are disposed on both sides of the outside of the groove 123. The chamber 121 is disposed in the processing table 12 and penetrates the processing table 12 in the left-right direction.

[0033] In this embodiment, the cavities 122 are divided into four by partitions.

[0034] The cutting mechanism 3 includes a telescopic member 31, a stamping plate 32, and a stamping knife 33. The telescopic member 31 is installed on the mounting frame 2, and the stamping plate 32 is assembled under the telescopic member 31. A plurality of stamping knives 33 are arranged on the stamping plate 32 at intervals on the left and right, wherein the number of stamping knives 33 is consistent with the number of stamping holes 124, and the stamping knife 33 is aligned with the stamping hole 124 up and down. The telescopic member 31 drives the stamping plate 32 to move downward so that the stamping knife 33 extends into the stamping hole 124, and the processing material 100 placed on the stamping hole 124 is punched and processed to complete the processing and forming of the terminal 200. In this embodiment, the telescopic member 31 is a telescopic motor. In other embodiments, the telescopic member 31 can also be a telescopic oil cylinder or a telescopic air cylinder.

[0035] The buffer members 9 are multiple and are arranged between the stamping plate 32 and the processing table 12. The buffer members 9 include a buffer tube 91 and a buffer rod 92. The number of the buffer tubes 91 is multiple and they are installed on the processing table 12 at intervals. The buffer rods 92 are installed on the stamping plate 32 at intervals, and the number is the same as that of the buffer tubes 91. A buffer spring 911 is provided in the buffer tube 91, so that when the stamping plate 32 stamps the processing material 100, the buffer rod 92 installed on the stamping plate 32 enters the buffer tube 91, and the buffer spring 911 in the buffer tube 91 buffers and resists it, thereby preventing the stamping plate 32 from hitting the processing table 12 and causing damage to the equipment.

[0036] The frame 4 cooperates to slide through the strip hole 125, and a first track groove 1251 forming a closed loop is provided on the side wall of the strip hole 125. The frame 4 is provided with a protrusion 422 that cooperates to move in the first track groove 1251. Specifically, the protrusion 422 is located at the left end. The length of the strip hole 125 is greater than the length of the frame 4. When the frame 4 moves back and forth, the protrusion 422 moves in the first track groove 1251, causing one end of the frame 4 to produce a vertical displacement. When the frame 4 moves, it drives the negative pressure plate 7 to move vertically back and forth in the cavity 122.

[0037] In this embodiment, the first track groove 1251 is a triangular closed-loop groove, including a first transverse groove 1251a, a first vertical groove 1251b and a first inclined groove 1251c. The first vertical groove 1251b and the first transverse groove 1251a are both inclined.

[0038] The protrusion 422 cooperates with the first track groove 1251 . When the frame 4 moves left and right in the strip hole 125 , the protrusion 422 moves in the first track groove 1251 to drive the frame 4 to move up and down in the first track groove 1251 .

[0039] The frame 4 includes a top plate 41, a side plate 42, and a connecting auxiliary plate 43. There are two side plates 42, which are respectively arranged on both sides of the width direction of the top plate 41. The connecting auxiliary plates 43 are installed on the end surfaces of the two side plates 42. The frame 4 inserts the two side plates 42 into the strip holes 125. The length of the two side plates 42 is less than the length of the strip holes 125, which facilitates the frame 4 to move left and right in the strip holes 125.

[0040] A plurality of avoidance holes 411 penetrating the plate body are provided on the top plate 41, corresponding one to one with the punching knives 33. The number, shape and size of the avoidance holes 411 are consistent with the punching holes 124. The main function of the avoidance holes 411 is to avoid the punching knife 33 and allow the punching knife 33 to pass through the avoidance holes 411 and penetrate into the punching hole 124.

[0041] A second track groove 421 forming a closed loop is provided on the side wall of the frame 4. The second track groove 421 is a triangular closed loop groove. The second track groove 421 includes a second transverse groove 421a, a second vertical groove 421b and a second inclined groove 421c. The second vertical groove 421b is vertically arranged with the second transverse groove 421a. The second vertical groove 421b is provided with a slope gradually inclined from bottom to top. The groove depth of the second inclined groove 421c is less than the groove depth of the second transverse groove 421a, so that a step surface is formed at the intersection of the second inclined groove 421c and the second transverse groove 421a.

[0042] Specifically, in the initial state, the frame 4 is located at the rightmost end of the strip hole 125, the protrusion 422 is located at the intersection of the first inclined groove 1251c and the first transverse groove 1251a, the frame 4 moves from right to left in the strip hole 125, and the protrusion 422 moves in the first transverse groove 1251a. When the protrusion 422 moves to the intersection of the first vertical groove 1251b and the first transverse groove 1251a, the frame 4 continues to move to the left in the strip hole 125, and the protrusion 422 moves upward along the first vertical groove 1251b. The frame 4 moves to the left end of the strip hole 125, thereby lifting the left end of the frame 4 upward, so that the frame 4 is inclined on the table top of the processing table 12. When the frame 4 moves to the leftmost end in the strip hole 125, the protrusion 422 moves to the intersection of the first vertical groove 1251b and the first inclined groove 1251c. At this time, the frame 4 returns from left to right in the strip hole 125, and the protrusion 422 moves downward in the first inclined groove 1251c. The leftmost end of the frame 4 moves downward until the top plate 41 of the frame 4 is level with the table top of the processing table 12.

[0043] The power member 6 is disposed in the chamber 121 and is used to drive the frame 4 to move forward and backward. Specifically, the power member 6 is two symmetrically disposed cylinders.

[0044] The negative pressure plate 7 includes a first plate 71 and a second plate 72. The opposite ends of the first plate 71 and the second plate 72 abut against each other. The other ends of the first plate 71 and the second plate 72 are hinged in the cavity 122 through a hinge rod 73. The two ends of the hinge rod 73 are connected to the side wall of the cavity 122 by sliding. The side wall of the cavity 122 is provided with a slide groove 1221 that cooperates with the hinge rod 73. The negative pressure plate 7 moves back and forth vertically in the cavity 122. When moving upward, the first plate 71 and the second plate 72 flip open to discharge the waste material that falls into the cavity 122 into the chamber 121. When moving downward, the first plate 71 and the second plate 72 move downward synchronously to form a slight negative pressure in the cavity 122, so as to avoid the processing material 100 from arching and affecting the punching effect.

[0045] The connecting member 8 includes a connecting block 81, a connecting plate 82, an inner rod 83, an outer rod 84, a second spring 85, a stopper 86, an L-shaped plate 87, a third spring 88 and a slider 89. The connecting block 81 includes a first connecting block 811 and a second connecting block 812. The first connecting block 811 is mounted on the lower surface of the first plate 71, and the second connecting block 812 is mounted on the lower surface of the second plate 72. The connecting plate 82 includes a first connecting plate 821 and a second connecting plate 822. The first connecting plate 821 is hinged to the first connecting block 811 through a coil spring, and the second connecting plate 822 is hinged to the second connecting block 812 through a coil spring.

[0046] The outer rod 84 is mounted on the outer wall of the inner rod 83 and can rotate around the inner rod 83. One end of the inner rod 83 is mounted on the first connecting plate 821, and the other end is provided with a first gear tooth 831 formed by circumferentially distributed teeth. One end of the outer rod 84 is mounted on the second connecting plate 822, and the other end is provided with a second gear tooth 841 formed by circumferentially distributed teeth.

[0047] The second track groove 421 is provided with an upper rack 421a1 and a lower rack 421a2 for driving the inner rod 83 and the outer rod 84 to rotate in opposite directions. The first gear teeth 831 are used to mesh with the lower rack 421a2, and the second gear teeth 841 are used to mesh with the upper rack 421a1.

[0048] The second spring 85 and the stopper 86 are both arranged on the outer rod 84, and the two ends of the second spring 85 are respectively hinged to the side of the stopper 86 and the adjacent connecting plate 82. When the outer rod 84 moves relative to the inner rod 83, it plays a limiting role to prevent the outer rod 84 from being separated from the inner rod 83. The L-shaped plate 87 is sleeved on one end of the outer rod 84 close to the second gear 841, the third spring 88 is connected to the bottom of the L-shaped plate 87, the slider 89 is connected to the bottom of the third spring 88, and the slider 89 is located on the slide rail 423 at the lower end of the side plate 42 of the frame 4.

[0049] Specifically, in the initial state, the protrusion 422 on the frame 4 is located at the intersection of the first inclined groove 1251c and the first transverse groove 1251a, and the inner rod 83 is located at the intersection of the second inclined groove 421c and the second transverse groove 421a. The step surface at the intersection of the second inclined groove 421c and the second transverse groove 421a can prevent the inner rod 83 from entering the second inclined groove 421c. When the power member 6 drives the frame 4 to move from right to left in the strip hole 125, the protrusion 422 on the frame 4 moves from right to left in the first inclined groove 1251c, slowly lifting the frame 4 upward, the inner rod 83 does not move, and the second transverse groove 421a on the frame 4 is relative to the inner rod 83. Slide from right to left until the lower rack 421a2 on the second transverse groove 421a contacts the first gear tooth 831 of the inner rod 83, and the lower rack 421a2 drives the inner rod 83 to rotate and drives the first connecting plate 821 to rotate, and then the first plate 71 is flipped downward and opened through the first connecting block 811, and the upper rack 421a1 of the second transverse groove 421a contacts the second gear tooth 841 of the outer rod 84, and the upper rack 421a1 drives the outer rod 84 to rotate and drives the second connecting plate 822 to rotate, and then the second plate 72 is flipped downward and opened through the second connecting plate 822, and the waste material falling into the cavity 122 is discharged into the chamber 121.

[0050] After the lower rack 421a2 passes over the first gear tooth 831 on the inner rod 83, the first connecting block 811 is reset under the action of the coil spring, and the first plate 71 is flipped and closed. The outer rod 84 moves in the same manner as the inner rod 83, which will not be described in detail.

[0051] When the protrusion 422 starts to move downward along the first vertical groove 1251b, the slope in the second vertical groove 421b squeezes the inner rod 83 to move downward, and then pulls the negative pressure plate 7 downward through the connecting plate 82, so that the negative pressure plate 7 moves downward in the cavity 122. Negative pressure is formed between the negative pressure plate 7 and the cavity 122, and the processing material 100 is adsorbed on the upper surface of the groove 123 through the punching hole 124, so as to avoid the processing material 100 from arching and affecting the punching effect.

[0052] When the protrusion 422 on the frame 4 moves to the intersection of the first inclined groove 1251c and the first transverse groove 1251a, at this time, the intersection of the second inclined groove 421c and the second vertical groove 421b coincides with the inner rod 83, and when the protrusion 422 moves along the first transverse groove 1251a, the second inclined groove 421c drives the inner rod 83 to continue to move downward until the negative pressure plate 7 reaches the initial position, and then repeats the above operation.

[0053] In this embodiment, the pressing member 5 includes a pressing block 52 disposed below the right end of the top plate 41 of the frame 4. The pressing block 52 is fixed to the lower end surface of the top plate 41 by a first spring 51, and the lower end surface of the pressing block 52 is arc-shaped.

[0054] After the processing material 100 is placed in the groove 123, when the frame 4 moves from left to right in the strip hole 125, the pressing block 52 moves with the frame 4 and flattens the processing material 100 to the left. When the leftmost end of the frame 4 moves upward, the rightmost end squeezes the pressing block 52 through the first spring 51 to better flatten the processing material 100. When the leftmost end of the frame 4 starts to move downward, the rightmost end squeezes the pressing block 52 from left to right through the first spring 51 to further flatten the processing material 100, thereby preventing the processing material 100 from bulging and affecting the blanking result of the processing material 100.

[0055] When the terminal stamping and cutting device of this embodiment is used, the processing material 100 is placed in the groove 123, and the processing material 100 is moved from right to left in the groove 123 by a traction member (not shown in the figure). The pressure block 52 installed at the right end of the frame 4 is pressed downward on the processing material 100 under the action of the first spring 51.

[0056] The traction member can be a traction chain, a conveyor roller, etc., as long as it is a structure that can drive the processing material 100 to move on the processing table 12. The above-mentioned conveying methods are relatively conventional methods and will not be described in detail.

[0057] The power member 6 drives the frame 4 to move from right to left in the strip hole 125, and the protrusion 422 on the inner wall of the side plate 42 of the frame 4 moves in the first track groove 1251, thereby lifting the leftmost end of the frame 4 upward, so that the frame 4 is tilted on the table surface of the processing table 12. When the pressing block 52 moves with the frame 4, the processing material 100 is flattened to the left. When the leftmost end of the frame 4 moves upward, the rightmost end squeezes the pressing block 52 through the first spring 51 to better flatten the processing material 100. At the same time, when the left end of the frame 4 moves upward, the side plate 4 of the frame 4 The second track groove 421 on the inner wall of the plate 42 drives the inner rod 83 to move up and down, that is, pushes the negative pressure plate 7 upward through the connecting plate 82, so that the negative pressure plate 7 moves upward in the cavity 122, and drives the inner rod 83 and the outer rod 84 to open the negative pressure plate 7 through the upper rack 421a1 and the lower rack 421a2 on the second track groove 421, and discharges the waste material that falls into the cavity 122. When the inner rod 83 passes over the upper rack 421a1 and the lower rack 421a2 on the second track groove 421, it continues to push the negative pressure plate 7 to move upward in the cavity 122.

[0058] When the frame 4 returns from left to right in the strip hole 125, the leftmost end of the frame 4 starts to move downward, and the rightmost end squeezes the pressure block 52 from left to right through the first spring 51 to further flatten the processing material 100, and the second track groove 421 squeezes the inner rod 83 to move downward, and then pulls the negative pressure plate 7 downward through the connecting plate 82, so that the negative pressure plate 7 moves downward in the cavity 122, and the negative pressure plate 7 and the cavity 122 form a negative pressure, and the processing material 100 is adsorbed on the upper surface of the groove 123 through the punching hole 124, so as to avoid the processing material 100 from arching and affecting the punching result of the processing material 100.

[0059] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "width", "horizontal", "top", "bottom", "inside", "outside" and the like, which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the devices or elements involved must have the specific orientation, be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the present invention.

[0060] In addition, in the description of this specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. A terminal punching and cutting device, comprising a workbench and a cutting mechanism mounted on the workbench, wherein the workbench is provided with a groove for limiting the placement of the terminal, and the groove is provided with a punching hole, characterized in that: A chamber is formed in the workbench, and a top wall of the chamber is provided with partitions distributed vertically at intervals, and a cavity is formed between adjacent partitions. The punching hole is connected to the corresponding cavity, and a negative pressure plate is provided in the cavity, and the negative pressure plate includes a first plate and a second plate, and opposite ends of the first plate and the second plate abut against each other, and the other ends of the first plate and the second plate are hinged in the cavity through a hinge rod, and both ends of the hinge rod are connected with the side walls of the cavity in a sliding manner. The negative pressure plate moves back and forth vertically in the cavity, and when moving upward, the first plate and the second plate flip open, and when moving downward, the first plate and the second plate move downward synchronously to form a slight negative pressure in the cavity; The workbench is provided with a frame, one end of the frame is floatingly provided with a pressure block, both sides of the outside of the groove are provided with strip holes, the frame slides through the strip holes, the side walls of the strip holes are provided with a first track groove forming a closed loop, the frame is provided with a protrusion that cooperates to move in the first track groove, and the chamber is provided with a power part that drives the frame to move forward and backward. When the frame moves forward and backward, the protrusion moves in the first track groove so that the frame is vertically displaced away from one end of the pressure block, and the frame moves, driving the negative pressure plate to move vertically back and forth in the cavity.

2. The terminal punching and cutting device according to claim 1, characterized in that: A connecting block is provided below one end of the first plate and the second plate which are close to each other, and a connecting member is connected below the connecting block, and the connecting member includes a connecting plate, an inner rod and an outer rod, and the outer rod is rotatably sleeved on the inner rod, and the connecting plates are two respectively fixedly sleeved on the inner rod and the outer rod, and the two connecting blocks are respectively hinged to the two connecting plates through torsion springs; A second track groove forming a closed loop is provided on the side wall of the frame, and the end of the inner rod away from the connecting plate is cooperated in the second track groove. The outer walls of the inner rod and the outer rod at one end close to the second track groove are circumferentially provided with teeth, and the second track groove is provided with an upper rack and a lower rack for driving the inner rod and the outer rod to rotate in opposite directions respectively.

3. The terminal punching and cutting device according to claim 2, characterized in that: The first track groove and the second track groove are both triangular closed-loop grooves, the first track groove comprises a first transverse groove, a first vertical groove and a first oblique groove, and the first vertical groove and the first transverse groove are both inclined; The second track groove includes a second transverse groove, a second vertical groove and a second oblique groove. The second vertical groove is vertically arranged to the second transverse groove. A slope gradually inclined from bottom to top is arranged in the second vertical groove. The groove depth of the second oblique groove is less than the groove depth of the second transverse groove.

4. The terminal punching and cutting device according to claim 2, characterized in that: An L-shaped plate is rotatably sleeved on the outer rod, a slider is floatingly connected to the bottom end of the L-shaped plate, a slide rail is provided at the lower end of the side plate of the frame, and the slide rail is slidably arranged in the slide rail.

5. The terminal punching and cutting device according to claim 1, characterized in that: The cutting mechanism comprises a telescopic member which is arranged on the mounting frame and telescopically extends and contracts vertically, and a stamping plate which is mounted on the telescopic member, wherein a stamping knife corresponding to the stamping hole is arranged on the stamping plate, and the stamping knife is vertically aligned with the stamping hole; The frame comprises a top plate and a avoidance hole for avoiding the punching knife is arranged on the top plate.

6. The terminal punching and cutting device according to claim 5, characterized in that: A plurality of buffer members are also arranged between the stamping plate and the workbench. The buffer members include a buffer cylinder installed on the workbench. A buffer rod corresponding to the buffer cylinder is arranged on the stamping plate. A buffer spring is arranged in the buffer cylinder.

7. The terminal punching and cutting device according to claim 5, characterized in that: The pressing block is arranged below one end of the top plate of the frame, and the pressing block is fixed to the lower end surface of the top plate through a first spring, and the lower end surface of the pressing block is in an arc shape.

8. The terminal punching and cutting device according to claim 1, characterized in that: The workbench also includes a trapezoidal table for placing processed terminals, and a reel for placing processed materials is provided on one side of the workbench away from the trapezoidal table.

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