Processing module and processing technology for connectors

Abstract

The present invention discloses a processing module and processing technology for a connector. The lower fixed plate and the upper fixed plate are provided with at least a punching step, a stretching step, a rotary cutting step, a tearing step, a forming step, and a blanking step. The punching step is provided with a punching die, the stretching step is provided with a stretching die, the rotary cutting step is provided with a rotary cutting device, the tearing step is provided with a tearing die, the forming step is provided with a forming die, and the blanking step is provided with a blanking die. The present invention uses a module to process a material strip to obtain a connector that integrates a main body, a positioning piece, and a positioning groove. This saves subsequent welding or assembly procedures, simplifies the processing procedure, improves production efficiency, improves production efficiency, improves product consistency, saves the circulation cost of semi-finished workpieces, and avoids the generation of defective products during the handling process. This improves production efficiency, reduces processing costs, reduces processing errors, improves processing accuracy, and improves the yield rate.

Description

Technical Field

[0001] The present invention relates to the technical field of electrode connector processing, and in particular to a processing module and a processing technology for connectors. Background Art

[0002] Energy storage components include, but are not limited to, supercapacitors, hybrid supercapacitors, hybrid battery capacitors, and / or other capacitor and / or battery components (e.g., lithium-ion, lead-acid, nickel-cadmium, sodium-ion, and / or other). Energy storage components are widely used in various industries, including vehicles, electronics, energy storage systems, transportation, smart grids, and industrial energy conservation and consumption reduction. Energy storage component technology is a key factor in their development. A single energy storage component typically consists of a positive electrode, a negative electrode, a casing, an electrolyte, a cover, and a terminal.

[0003] The positive and negative electrodes of the battery cells of the energy storage element monomer are usually connected to the cover plate or the pole through the positive and negative connectors to achieve electrical conduction. In order to improve the positioning accuracy between the connector, the pole and the cover plate and prevent the relative positions of the three from shifting, some energy storage element monomers often provide positioning plates and positioning grooves on the connector to position the relative positions of the three. In the prior art, the connector with positioning plates and positioning grooves, the connector body and the positioning plates are usually independent structures. After the two are processed separately, they are fixed and connected by welding. The processing and assembly procedures are cumbersome and the production efficiency is low. The connector body and the positioning plates are usually processed by turning. During the turning process, the workpiece needs to be clamped and rotated by the corresponding fixture, and cut into shape by the turning tool. This processing method has a slow turning speed. At the same time, the reciprocating cumulative error of the lathe tool feeding mechanism causes poor consistency of the workpiece. Moreover, the turning tool will continue to wear as the processing time increases, which in turn affects the processing quality of the sleeve. It is necessary to regularly eliminate the accumulated error of the machine tool and maintain or replace the turning tool, which prolongs the processing cycle, reduces production efficiency, increases costs, and wastes a lot of materials. On the other hand, the fixture clamping on the workpiece surface is also prone to damage the workpiece surface, thus affecting the quality of the workpiece. Summary of the Invention

[0004] In response to the shortcomings of the above-mentioned existing electrode connector processing, the applicant provides a reasonable processing module and processing technology for connectors. The connectors are formed by modules to improve production efficiency, reduce costs, reduce material waste, avoid damage to the workpiece surface, and ensure the quality of the workpiece.

[0005] The technical solutions adopted in the present invention are as follows:

[0006] The cam is secured to the workbench and is configured to engage said sliding panel and to engage said adjusting base, wherein said sliding panel is secured to a position responsive to the load of said user. The cam is secured to an upper portion of said workbench and is configured to engage said user's load of equipment.

[0007] As a further improvement of the above technical solution:

[0008] A driving shaft and a knife rod are provided on the outer shell of the peeling device. The driving shaft is connected to the motor, and the lower end of the knife rod is connected to the knife holder. The driving shaft and the knife rod are driven by gear meshing. The knife arm of the knife holder is connected to the knife rod through a pin shaft. A cutting knife is provided at one end of the knife arm and a centrifugal block is provided at the other end. The cutting knife and the centrifugal block are located on opposite sides of the pin shaft. When the knife holder rotates, the centrifugal force generated by the centrifugal block causes the knife arm to rotate around the pin shaft and press the cutting knife onto the workpiece.

[0009] Several tool holders are provided on the knife rod, and the mass and / or rotation radius of the centrifugal block on each tool holder is the same or different; a limiting structure is provided on the knife arm to limit the rotation angle of the knife arm; a torsion spring is sleeved on the shaft portion of the pin located between the knife holder and the connecting rod, the upper free end of the torsion spring is clamped on the knife rod, and the lower free end of the torsion spring is clamped on the positioning column of the knife arm; the cutting knife and the centrifugal block are integrally formed on the knife arm, or assembled to the knife arm.

[0010] A bottom support assembly is provided on the lower fixed plate, directly below the peeling device. The bottom support seat of the bottom support assembly is connected to the fourth floating block through a number of transition pins. The fourth floating block is connected to the lower seat plate through a tenth spring. The bottom support rod is connected to the lower fixed plate. The bottom support rod is vertically passed through the center of the bottom support seat. When supporting, the bottom support seat is supported on the bottom of the workpiece, and the bottom support rod extends into the forming column for support.

[0011] A guide pin is provided on the upper fixed plate for each work step, a first guide hole is opened on the material strip corresponding to each work step, and a second guide hole is opened on the lower fixed plate corresponding to each work step; when the guide pin descends with the upper fixed plate, it passes through the first guide hole of the material strip and the second guide hole of the lower fixed plate in turn to guide the material strip; a punching rod is provided on the upper fixed plate in front of the punching die to punch guide holes in the material strip.

[0012] The punching step includes an incision step and an outcision step. An incision mold is provided on the incision step. The incision mold includes an incision lower mold, an incision upper mold, and an incision stripping block. The incision stripping block is connected to the lower seat plate through a second spring; an outcision mold is provided on the outcision step. The outcision mold includes an outcision lower mold, an outcision upper mold, and an outcision stripping block. The outcision stripping block is connected to the lower seat plate through a third spring; a cutting hole is provided in the center of the incision lower mold and the outcision lower mold, and the outer contours of the main bodies of the incision upper mold and the outcision upper mold match the inner contour of the cutting hole; a plurality of cutting notches are provided on the outer peripheral edges of the lower ends of the incision upper mold and the outcision upper mold, and the inner cutting notches of the incision upper mold and the outer cutting notches of the outcision upper mold are arranged side by side or staggered.

[0013] The stretching step includes a bulge drawing step, a pre-stretching step, and a stretching forming step. A bulge drawing mold is provided on the bulge drawing step, a pre-stretching mold is provided on the pre-stretching step, and a stretching forming mold is provided on the stretching forming step; the bulge drawing mold, the pre-stretching mold, and the lower mold of the stretching forming mold are connected with a floating block, and the floating block is connected to the lower seat plate through a spring, and a punch rod is vertically passed through the lower mold, and the punch rod is connected to the lower fixed plate; the upper mold of the bulge drawing mold, the pre-stretching mold, and the stretching forming mold is connected to the upper fixed plate, and an upper push rod is vertically passed through the upper mold, and the upper push rod is connected to the upper seat plate through a spring.

[0014] The lower mold of the tearing mold and the forming mold is connected with a floating block, which is connected to the lower seat plate through a spring, and a number of lower push rods are vertically passed through the lower mold, and the lower push rods are connected to the lower fixed plate; the upper mold of the tearing mold and the forming mold are connected to the upper fixed plate, and an upper push rod is vertically passed through the upper mold, and the upper push rod is connected to the upper seat plate through a spring; the position and number of the upper push rods and the lower push rods correspond to the position and number of the finished product positioning pieces; an upper mold hole is opened on the upper mold of the tearing mold and the forming mold; the upper end portion of the tearing lower push rod of the tearing mold and the lower end portion of the tearing upper push rod are both triangular slopes, the top end of the tearing lower push rod is a sharp end, and the bottom end of the tearing upper push rod is a sharp end; the upper end portion of the forming lower push rod of the forming mold and the upper end portion of the forming upper push rod are both square columns; a blanking hole is opened in the center of the blanking lower mold of the blanking mold, and the inner diameter of the blanking hole is larger than the outer contour size of the finished product; a third upper mold hole is opened in the center of the blanking upper mold.

[0015] A number of guide pillars are arranged between the lower fixed plate and the upper fixed plate, and the lower fixed plate and the upper fixed plate are respectively arranged on the guide pillars through guide sleeves; a stripper plate is also connected to the lower side of the upper fixed plate, and a number of first springs are arranged between the stripper plate and the upper fixed plate, and the guide pillars and guide pins pass through the stripper plate; on the lower fixed plate and the upper fixed plate, idle steps are respectively arranged between the external cutting step and the embossing step, between the stretching forming step and the rotary cutting step, and between the rotary cutting step and the tearing step.

[0016] A processing technology for connecting parts, using the above-mentioned processing module for connecting parts for processing, includes the following steps:

[0017] S0, punching the pilot hole, punching the first pilot hole on the strip through the punching rod on the upper fixed plate;

[0018] S1, punching, including two sub-steps: S11 internal cutting and S12 external cutting. In the S11 internal cutting sub-step, an internal cutting product is punched out on the material strip by an internal cutting die. In the S12 external cutting sub-step, an external cutting product is further punched on the internal cutting product by an external cutting die.

[0019] S2, stretching, including several stretching sub-steps, punching out a forming column on the externally cut product through a stretching die to obtain a stretched formed product;

[0020] S3, rotary cutting, using a rotary cutting device to rotary cut a ring groove on the forming column using a centrifugal processing method to obtain a rotary cut product;

[0021] S4, tearing, tearing oblique pieces on the rotary cut product through a tearing die to obtain a torn product;

[0022] S5, forming, shaping the oblique pieces into straight pieces on the torn product through a forming die to obtain a formed product;

[0023] S6, blanking, the formed product is punched out from the material belt through the blanking die to obtain the finished product.

[0024] The beneficial effects of the present invention are as follows:

[0025] The present invention adopts a module to process the material strip. The material strip only needs to be guided backward according to the working steps and processed in sequence through the mold of the corresponding working step to obtain a connector with a main body, a positioning piece, and a positioning groove integrated into one, which saves subsequent welding or assembly procedures, makes the processing procedure simpler, and increases production efficiency. Moreover, the processing of the main body and the positioning piece of the connector are both performed by mold stamping. On the one hand, the stamping processing speed is fast, and basically no waste is generated during the processing process. Moreover, the consistency of the products formed by the mold is good, thereby ensuring the processing quality of the connector, saving the maintenance and replacement procedures and time, shortening the processing cycle, improving production efficiency, reducing costs, and reducing material waste. On the other hand, through module molding, the cutting marks on the product surface caused by defects in the machining process can be eliminated. The positioning groove of the connector is performed in the mold by a rotary cutting device, which saves procedures, saves the circulation costs of semi-finished workpieces, and avoids the generation of defective products caused during the transportation process, thereby improving production efficiency, reducing processing costs, reducing processing errors, improving processing accuracy, and improving the yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1It is a schematic diagram of the process flow of the present invention.

[0027] Figure 2 Schematic diagram of the module structure of the present invention.

[0028] Figure 3 This is a schematic diagram of the structure and processing of the internal cutting mold.

[0029] Figure 4 This is a schematic diagram of the structure and processing of the external cutting mold.

[0030] Figure 5 This is a schematic diagram of the structure and processing of the convex hull drawing die.

[0031] Figure 6 Schematic diagram of the structure and processing of the pre-stretching mold.

[0032] Figure 7 Schematic diagram of the structure and processing of the stretch forming die.

[0033] Figure 8 It is the structure and processing diagram of the peeling device.

[0034] Figure 9 Schematic diagram of the structure and processing of the tearing die.

[0035] Figure 10 for Figure 9 Enlarged view of part A in the middle.

[0036] Figure 11 Schematic diagram of the structure and processing of the forming mold.

[0037] Figure 12 for Figure 11 Enlarged view of part B in the middle.

[0038] Figure 13 Schematic diagram of the structure and processing of the blanking die.

[0039] Figure 14 Schematic diagram of the structure of the rotary cutting device.

[0040] Figure 15 It is the right side view of the peeling device.

[0041] Figure 16 It is a partial structural schematic diagram of the rotary cutting device.

[0042] Figure 17 for Figure 16 Bottom view of .

[0043] In the figure: 100, material strip; 200, module;

[0044] 10. Lower seat plate; 20. Upper seat plate; 30. Lower fixed plate; 40. Upper fixed plate; 50. Guide pillar; 60. Lifting pin; 601. Material guide trough; 70. Guide pin; 80. Punching rod; 90. Stripper plate; 901. First spring;

[0045] 1. Internal cutting mold; 11. Internal cutting lower mold; 111. Internal cutting hole; 12. Internal cutting upper mold; 121. Internal cutting notch; 13. Internal cutting stripping block; 14. Second spring; 15. Internal cutting product;

[0046] 2. External cutting mold; 21. External cutting lower mold; 211. External cutting hole; 22. External cutting upper mold; 221. External cutting notch; 23. External cutting stripping block; 24. Third spring; 25. External cutting product;

[0047] 3. Bump mold; 31. Bump lower mold; 32. Bump upper mold; 33. Bump punch; 34. Bump upper ejector; 35. First floating block; 36. Fourth spring; 37. Fifth spring; 38. Bump product; 381. Bump;

[0048] 4. Pre-stretching die; 41. Pre-stretching lower die; 42. Pre-stretching upper die; 43. Pre-stretching punch; 44. Pre-stretching upper ejector; 45. Second floating block; 46. Sixth spring; 47. Seventh spring; 48. Pre-stretching product; 481. Pre-stretching column;

[0049] 5. Stretching die; 51. Stretching lower die; 52. Stretching upper die; 53. Stretching punch; 54. Stretching upper ejector; 55. Third floating block; 56. Eighth spring; 57. Ninth spring; 58. Stretching product; 581. Forming column;

[0050] 6. Peeling device; 61. Housing; 62. Driving shaft; 621. Driving gear; 63. Motor; 64. Cutter bar; 641. Rod; 642. Connecting rod; 643. Driven gear; 65. Cutter holder; 651. Cutter arm; 652. Cutter; 653. Centrifugal block; 654. Positioning column; 66. Pin; 67. Torsion spring; 671. Spring body; 672. Upper free end; 673. Lower free end; 68. Peeled product; 681. Ring groove; 69. Support assembly; 691. Support seat; 692. Support rod; 693. Fourth floating block; 694. Tenth spring;

[0051] 7. Tearing die; 71. Tearing lower die; 72. Tearing upper die; 721. First upper die hole; 73. Tearing lower ejector pin; 74. Tearing upper ejector pin; 75. Fifth floating block; 76. Eleventh spring; 77. Twelfth spring; 78. Tearing product; 781. Oblique piece;

[0052] 8. Molding die; 81. Molding lower die; 82. Molding upper die; 821. Second upper die hole; 83. Molding lower ejector pin; 84. Molding upper ejector pin; 85. Sixth floating block; 86. Thirteenth spring; 87. Fourteenth spring; 88. Molded product; 881. Straight piece;

[0053] 9. Blanking die; 91. Blanking lower die; 911. Blanking hole; 92. Blanking upper die; 921. Third upper die hole; 93. Finished product. DETAILED DESCRIPTION

[0054] The specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0055] like Figure 1 As shown, the present invention utilizes module 200 to sequentially process strip 100, which is fed forward and backward along the X-axis, through the following processing steps: S1 punching, S2 stretching, S3 peeling, S4 tearing, S5 forming, and S6 blanking, resulting in finished product 93. Prior to S1 punching, strip 100 must first undergo S0 pilot hole punching. The S1 punching step is divided into S11 internal cutting and S12 external cutting sub-steps; the S2 stretching step is divided into S21 convex bulging, S22 pre-stretching, and S23 stretching and forming sub-steps. Module 200 is equipped with at least one process step corresponding to each processing step or sub-step. Punching the pilot hole and incision are performed simultaneously in one process step, including: punching the pilot hole and incision, external cutting, bulging, pre-stretching, stretching, peeling, tearing, forming, and blanking. To avoid interference, idle steps are provided between the external cutting and bulging steps, between the stretching and peeling steps, and between the peeling and tearing steps. The material strip 100 is pushed backward by a feeder according to a set step distance. After the upper die of module 200 completes a stamping action, the upper die ascends, and the feeder pushes the material strip 100 backward by one step distance (the distance between two adjacent process steps is the step distance). Once in place, it waits for the upper die to descend for the next stamping action.

[0056] like Figure 2As shown, the lower base plate 10 and upper base plate 20 of the die assembly 200 are arranged in a downward and upward direction along the Z axis. A lower fixing plate 30 is located on the top of the lower base plate 10, and an upper fixing plate 40 is located on the bottom of the upper base plate 20. The lower base plate 10, upper base plate 20, lower fixing plate 30, and upper fixing plate 40 are all arranged horizontally along the XY plane. The lower base plate 10 and lower fixing plate 30 are connected to a workbench, while the upper base plate 20 and upper fixing plate 40 are connected to a punch press (not shown). The upper fixing plate 40 is connected to the slider of the punch press and can be driven by the punch press to move up and down. Several guide posts 50 are vertically arranged between the lower fixing plate 30 and the upper fixing plate 40 along the Z axis. The lower fixing plate 30 and the upper fixing plate 40 are respectively mounted on the guide posts 50 via guide sleeves. The guide posts 50 ensure that the upper and lower dies do not misalign when opening and closing. Two rows of lift pins 60 extend vertically upward along the X-direction from the lower fixed plate 30. Guide slots 601 are defined on the facing inner sides of the two rows of lift pins 60. The material strip 100 is pushed backward through the guide slots 601 of the two rows of lift pins 60. The lift pins 60 can lower the material strip 100 as the upper fixed plate 40 descends, and lift the material strip 100 when the upper fixed plate 40 is lifted, preventing interference between the material strip 100 and the mold during feeding. Guide pins 70 extend vertically downward along the Z-direction from the upper fixed plate 40 for each process step. Guide holes are defined for each process step on the material strip 100 and the lower fixed plate 30. As the guide pins 70 descend with the upper fixed plate 40, they pass through the guide holes of the material strip 100 and the lower fixed plate 30, sequentially from top to bottom, precisely positioning the material strip 100 and ensuring processing accuracy and quality. A punching rod 80 is also provided on the upper fixed plate 40, corresponding to the punching guide hole and incision process. When the punching rod 80 descends along with the upper fixed plate 40, it punches the material strip 100, punching out a first guide hole 1001 in the material strip 100. A stripper plate 90 is also connected to the lower portion of the upper fixed plate 40. A plurality of first springs 901 are provided between the stripper plate 90 and the upper fixed plate 40. The guide posts 50 and the guide pins 70 pass through the stripper plate 90. During the blanking process, the stripper plate 90 can play the role of pressing the material strip 100, and can press the material strip 100 tightly. After the blanking is completed, the stripper plate 90 can play the role of stripping the material, and the stripper plate 90 uses the spring force provided by the first springs 901 to separate the punch from the material strip 100.

[0057] On the lower fixed plate 30 and the upper fixed plate 40, corresponding to each processing step or sub-step, an inner cutting mold 1, an outer cutting mold 2, a convex hull pulling mold 3, a pre-stretching mold 4, a stretching forming mold 5, a rotary cutting device 6, a tearing mold 7, a forming mold 8, and a blanking mold 9 are arranged in sequence from front to back along the X direction; except for the rotary cutting device 6, the remaining molds include a lower mold and an upper mold, the lower mold is arranged on the lower fixed plate 30, and the upper mold is arranged on the upper fixed plate 40.

[0058] The specific steps of processing the strip 100 by the module 200 are as follows:

[0059] S0: Punching pilot holes. The material strip 100 is fed by a feeder to the punching and internal cutting process. The punching rod 80 on the upper fixed plate 40 punches the first pilot hole 1001 in the material strip 100. When the material strip 100 is first fed onto the die assembly 200, the pilot hole is punched separately. As the material strip 100 continues to be fed, the pilot hole and internal cutting are punched simultaneously.

[0060] S1, Punching. After the pilot holes are punched, the strip 100 is pushed back for punching. In this embodiment, punching is divided into two sub-steps: S11, internal cutting, and S12, external cutting. In other embodiments, depending on practical circumstances, punching can be performed in one step, or divided into three or more sub-steps.

[0061] S11, internal cutting. The material strip 100 is pushed by the feeder to the punching and internal cutting process, and the internal cutting die 1 performs the internal cutting process. Figure 3 As shown, the incision mold 1 includes an incision lower mold 11 mounted on a lower fixed plate 30 and an incision upper mold 12 mounted on an upper fixed plate 40. The incision lower mold 11 has an incision hole 111 at its center, within which is disposed an incision stripping block 13. The incision stripping block 13 is connected to the lower base plate 10 via a second spring 14. The outer contour of the main body of the incision upper mold 12 matches the inner contour of the incision hole 111, and an incision notch 121 is disposed on the outer peripheral edge of the lower end of the incision upper mold 12. After the incision lower mold 11 and the incision upper mold 12 are combined, an incision product 15 is punched out of the material strip 100. After the incision is completed, the incision lower mold 11 and the incision upper mold 12 are separated, and the incision stripping block 13 can eject the cut material from the incision lower mold 11. The incision product 15 is not cut at the portion corresponding to the incision notch 121 and remains connected to the material strip 100.

[0062] S12, external cutting. Push the internal cutting product 15 backward to the external cutting step, and the external cutting mold 2 performs external cutting. Figure 4As shown, the external cutting mold 2 includes an external cutting lower mold 21 mounted on the lower fixed plate 30 and an external cutting upper mold 22 mounted on the upper fixed plate 40. The external cutting lower mold 21 has an external cutting hole 211 in the center, and an external cutting stripping block 23 is disposed within the external cutting hole 211. The external cutting stripping block 23 is connected to the lower base plate 10 via a third spring 24. The outer contour of the main body of the external cutting upper mold 22 matches the inner contour of the external cutting hole 211, and an external cutting notch 221 is disposed on the outer peripheral edge of the lower end of the external cutting upper mold 22. After the external cutting lower mold 21 and the external cutting upper mold 22 are combined, further punching is performed on the internal cutting product 15 to obtain the external cutting product 25. After the external cutting is completed, the external cutting lower mold 21 and the external cutting upper mold 22 are separated, and the external cutting stripping block 23 can eject the cut material from the internal and external cutting lower molds 21. The external cutting product 25 is not cut at the portion corresponding to the external cutting notch 221 and remains connected to the material strip 100. The inner notches 121 and the outer notches 221 may be arranged side by side or staggered, and may be arranged in one row or multiple rows.

[0063] S2, stretching. After punching, the strip 100 is pushed back for stretching. In this embodiment, stretching is divided into three sub-steps: S21: bulge drawing, S22: pre-stretching, and S23: stretching and forming. In other embodiments, stretching can be performed in a single step, or divided into three or more sub-steps, depending on the actual situation.

[0064] S21, convex hulling. Push the cut product 25 backward to the convex hulling step, and the convex hulling mold 3 performs the convex hulling process. Figure 5 As shown, the bulge drawing mold 3 includes a bulge drawing lower mold 31, a bulge drawing upper mold 32, a bulge punch 33, and a bulge upper push rod 34; the bottom of the bulge drawing lower mold 31 is connected to the first floating block 35 through a number of transition pins, and the first floating block 35 is connected to the lower seat plate 10 through a fourth spring 36. The bulge punch 33 is connected to the lower fixed plate 30 and vertically penetrates the center of the bulge drawing lower mold 31. The bulge drawing upper mold 32 is connected to the upper fixed plate 40. The bulge upper push rod 34 is vertically penetrated in the center of the bulge drawing upper mold 32. The top of the bulge upper push rod 34 is connected to the upper seat plate 20 through the fifth spring 37. The convex bulge lower die 31 is combined with the convex bulge upper die 32, and the convex bulge punch 33 punches out a convex bulge 381 on the circumscribed product 25 to obtain a convex bulge product 38; after the convex bulge is completed, the convex bulge lower die 31 is separated from the convex bulge upper die 32, and the convex bulge upper ejector rod 34 ejects the convex bulge 381 of the convex bulge product 38 from the convex bulge upper die 32.

[0065] S22, pre-stretching. Push the convex product 38 backward to the pre-stretching step, and the pre-stretching mold 4 performs the pre-stretching process. Figure 6As shown, the pre-stretching mold 4 includes a pre-stretching lower mold 41, a pre-stretching upper mold 42, a pre-stretching punch 43, and a pre-stretching upper push rod 44; the bottom of the pre-stretching lower mold 41 is connected to a second floating block 45 through a number of transition pins, and the second floating block 45 is connected to the lower seat plate 10 through the sixth spring 46. The pre-stretching punch 43 is connected to the lower fixed plate 30 and vertically penetrates the center of the pre-stretching lower mold 41. The pre-stretching upper mold 42 is connected to the upper fixed plate 40. The pre-stretching upper push rod 44 is vertically penetrated in the center of the pre-stretching upper mold 42. The top of the pre-stretching upper push rod 44 is connected to the upper seat plate 20 through the seventh spring 47. The pre-stretching lower mold 41 is closed with the pre-stretching upper mold 42, and the pre-stretching punch 43 punches out the pre-stretching column 481 on the convex product 38 to obtain the pre-stretching product 48, and the pre-stretching is completed; after the pre-stretching is completed, the pre-stretching lower mold 41 is separated from the pre-stretching upper mold 42, and the pre-stretching upper ejector rod 44 ejects the pre-stretching column 481 from the pre-stretching upper mold 42.

[0066] S23, stretching forming. The pre-stretched product 48 is pushed back to the stretching forming step and is stretched and formed by the stretching forming die 5. Figure 7 As shown, the stretching forming mold 5 includes a stretching forming lower mold 51, a stretching forming upper mold 52, a stretching forming punch 53, and a stretching forming upper ejector rod 54; the bottom of the stretching forming lower mold 51 is connected to a third floating block 55 through a number of transition pins, and the third floating block 55 is connected to the lower seat plate 10 through an eighth spring 56. The stretching forming punch 53 is connected to the lower fixed plate 30 and vertically penetrates the center of the stretching forming lower mold 51. The stretching forming upper mold 52 is connected to the upper fixed plate 40. The stretching forming upper ejector rod 54 is vertically penetrated in the center of the stretching forming upper mold 52. The top of the stretching forming upper ejector rod 54 is connected to the upper seat plate 20 through a ninth spring 57. The stretching forming lower die 51 and the stretching forming upper die 52 are combined, and the stretching forming punch 53 punches out the forming column 581 on the pre-stretched product 48 to obtain the stretching formed product 58; after the stretching forming is completed, the stretching forming lower die 51 and the stretching forming upper die 52 are separated, and the stretching forming upper ejector 54 ejects the forming column 581 from the stretching forming upper die 52.

[0067] S3, peeling. After the stretching is completed, the strip 100 is pushed back further for peeling.

[0068] The stretched formed product 58 is pushed backward to the rotary cutting step, and the rotary cutting device 6 performs rotary cutting to rotary cut an annular groove 681 on the forming column 581 of the stretched formed product 58 to obtain the rotary cut product 68.

[0069] like Figure 8 、 Figures 14 to 17As shown, the housing 61 of the peeling device 6 is connected to the upper fixed plate 40. The housing 61 is orthogonally provided with a driving shaft 62 and a knife bar 64. The driving shaft 62 extends from the rear end of the housing 61 along the Y direction, and one end of the extension is connected to the motor 63. The knife bar 64 extends from the lower end of the housing 61 along the Z direction, and one end of the extension is connected to the knife holder 65. The driving shaft 62 is provided with a driving gear 621, and the knife bar 64 is provided with a driven gear 643. The driving gear 621 meshes with the driven gear 643, and the driving shaft 62 drives the knife bar 64 to rotate through a gear transmission. The driving gear 621 and the driven gear 643 are both bevel gears. In this embodiment, the knife bar 64 is driven by the motor 63 through a gear transmission. In other embodiments, it can also be driven by the motor 63 through a belt drive, or it can be driven directly by the motor 63.

[0070] like Figure 14 、 Figure 16 As shown, the knife rod 64 includes a vertical rod portion 641, which is inserted into the housing 61. Connecting rods 642 extend radially and symmetrically outward from opposite sides of the lower end of the rod portion 641. Each connecting rod 642 is connected to a knife holder 65, which is perpendicular to the knife rod 64. When the knife rod 64 rotates, it drives the two knife holders 65 to rotate about the central axis of the rod portion 641. In other embodiments, depending on the actual situation, the knife rod 64 may be provided with only one knife holder 65, or with two or more knife holders 65.

[0071] like Figure 16 、 Figure 17 As shown, the tool holder 65 includes a knife arm 651. The middle part of the knife arm 651 is connected to the connecting rod 642 through a pin 66. The knife arm 651 can rotate around the center axis of the pin 66. A cutter 652 is provided at the end of the knife arm 651 facing the rod 641 and the workpiece, and a centrifugal block 653 is provided at the other end of the knife arm 651. The cutter 652 and the centrifugal block 653 can be integrally formed on the knife arm 651, or they can be independently processed and then assembled to the knife arm 651. Figure 17 As shown, the pin 66 serves as a fulcrum, supporting and connecting the tool holder 65 to the tool rod 64. When the tool rod 64 drives the tool holder 65 to rotate about the central axis of the tool rod 64, the centrifugal weight 653 generates a centrifugal force F as it rotates with the tool holder 65. Under the action of the centrifugal force F, the knife arm 651 rotates about the pin 66 (i.e., the fulcrum). Because the cutter 652 and the centrifugal weight 653 are located on opposite sides of the pin 66, when the knife arm 651 rotates about the pin 66, the cutter 652 is pressed against the workpiece (the forming column 581 of the stretched formed product 58) for cutting, thereby rotary-cutting an annular groove 681 in the forming column 581. The centrifugal force F of the centrifugal weight 653 is calculated as F=mrω. 2, where m is the mass of the centrifugal mass 653, r is the rotation radius of the centrifugal mass 653, and ω is the rotation speed; adjusting the mass or rotation radius of the centrifugal mass 653 or the rotation speed of the cutter bar 64 can change the magnitude of the centrifugal force F, thereby adjusting the rotation angle of the cutter arm 651, and further controlling the cutting depth of the cutter 652 and the depth of the annular groove 681 to ensure the machining accuracy of the annular groove 681. In other embodiments, a limiting structure can also be provided on the cutter arm 651 to limit the rotation angle of the cutter arm 651, thereby preventing the cutter 652 from cutting too deeply and ensuring the machining accuracy of the annular groove 681. In this embodiment, the centrifugal blocks 653 on the two tool holders 65 can be configured with different masses and / or rotational radii, so that the cutters 652 on the two tool holders 65 have different cutting depths, which is more conducive to the single-cut cutting and forming of the annular groove 681, improving processing efficiency, reducing processing errors, and improving processing accuracy. Moreover, setting a different cutting depth for each cutter 652 also helps to reduce the extrusion force of the cutter 652 on the workpiece, reducing workpiece deformation, and improving workpiece quality. In other embodiments, when more than two tool holders 65 are provided, the centrifugal blocks 653 on each tool holder 65 can be configured with different masses and / or rotational radii according to actual processing requirements, so that the cutters 652 on each tool holder 65 have different cutting depths, thereby improving processing efficiency, reducing processing errors, and improving processing accuracy.

[0072] like Figure 16 As shown, a torsion spring 67 is sleeved on the pin 66. The spring body 671 of the torsion spring 67 is sleeved on the shaft portion of the pin 66 located between the tool holder 65 and the connecting rod 642. The upper free end 672 of the torsion spring 67 is engaged with the connecting rod 642, and the lower free end 673 of the torsion spring 67 is engaged with the positioning post 654, which is provided on the blade arm 651 of the tool holder 65. After grooving is completed, the tool holder 65 rotates in the opposite direction about the pin 66, disengaging the cutter 652 from the annular groove 681 of the workpiece. At this time, the torsion spring 67 is compressed. After the tool holder 65 is released, the torsion spring 67 can reset the tool holder 65.

[0073] The peeling device 6 is provided with a centrifugal block 653 on the tool holder 65, and the workpiece is grooved by the centrifugal force generated by the centrifugal block 653. The cutting extrusion force and the groove depth are controlled by adjusting the centrifugal force of the centrifugal block 653, so the processing error is small, the processing accuracy is high, and the processing efficiency is high.

[0074] like Figure 8As shown, a bottom support assembly 69 is provided on the lower fixed plate 30, directly below the peeling device 6, to support the workpiece on the material strip 100 during peeling. The bottom support assembly 69 includes a bottom support seat 691, a bottom support rod 692, a fourth floating block 693, and a tenth spring 694. The bottom support seat 691 is connected to the fourth floating block 693 via a plurality of transition pins. The fourth floating block 693 is connected to the lower seat plate 10 via the tenth spring 694. The bottom support rod 692 is connected to the lower fixed plate 30 and is vertically extended through the center of the bottom support seat 691. During support, the bottom support seat 691 rests on the bottom of the workpiece, and the bottom support rod 692 extends into and is supported within the forming column 581.

[0075] S4, tearing. After the peeling is completed, the material strip 100 is pushed back continuously for tearing.

[0076] The peeled product 68 is pushed back to the tearing step and the tearing die 7 performs the tearing process. Figure 9 、 Figure 10 As shown, the tearing die 7 includes a tearing lower die 71, an upper tearing die 72, a tearing lower ejector pin 73, and a tearing upper ejector pin 74. The bottom of the tearing lower die 71 is connected to a fifth floating block 75 via a plurality of transition pins. The fifth floating block 75 is connected to the lower base plate 10 via an eleventh spring 76. A plurality of tearing lower ejector pins 73 are connected to the lower fixed plate 30. The tearing lower ejector pins 73 are vertically inserted through the tearing lower die 71. The tearing upper die 72 is connected to the upper fixed plate 40. The tearing upper ejector pins 74 are vertically inserted through the tearing upper die 72. The tops of the tearing upper ejector pins 74 are connected to the upper base plate 20 via a twelfth spring 77. The positions and number of the tearing lower ejector pins 73 and the tearing upper ejector pins 74 correspond to the positions and number of the positioning pieces of the finished product 93. The upper ends of the tearing lower ejector pins 73 and the lower ends of the tearing upper ejector pins 74 are both triangularly sloped. The top ends of the tearing lower ejector pins 73 and the bottom ends of the tearing upper ejector pins 74 are sharpened. A first upper die hole 721 is defined in the center of the tearing upper die 72. The inner diameter of the first upper die hole 721 is larger than the outer diameter of the forming post 581. When the dies are closed, the forming post 581 extends into the first upper die hole 721. The tearing lower die 71 and the tearing upper die 72 are closed together. The tearing lower ejector pin 73 tears the inclined piece 781 from the peeled product 68, producing the tearing product 78. After the tearing is completed, the tearing upper ejector pin 74 ejects the inclined piece 781 from the tearing upper die 72.

[0077] S5, forming. After the tearing is completed, the material strip 100 is pushed back continuously for forming.

[0078] The torn product 78 is pushed back to the forming step and formed by the forming die 8. Figure 11 、 Figure 12As shown, the forming mold 8 includes a lower forming mold 81, an upper forming mold 82, a lower forming ejector pin 83, and an upper forming ejector pin 84. The lower forming mold 81 is connected to a sixth floating block 85 via a plurality of transition pins. The sixth floating block 85 is connected to the lower seat plate 10 via a thirteenth spring 86. A plurality of lower forming ejector pins 83 are connected to the lower fixed plate 30. The lower forming ejector pins 83 are vertically inserted through the lower forming mold 81. The upper forming mold 82 is connected to the upper fixed plate 40. The upper forming ejector pins 84 are vertically inserted through the upper forming mold 82. The tops of the upper forming ejector pins 84 are connected to the upper seat plate 20 via a fourteenth spring 87. The positions and number of the lower forming ejector pins 83 and 83 correspond to the positions and number of the positioning pieces of the finished product 93. The upper ends of the lower forming ejector pins 83 and the upper ends of the upper forming ejector pins 84 are both square pillars. A second upper die hole 821 is defined in the center of the upper die 82. The inner diameter of the second upper die hole 821 is larger than the outer diameter of the forming post 581. When the die is closed, the forming post 581 extends into the second upper die hole 821. The lower die 81 and the upper die 82 are closed together, and the lower ejector pin 83 reshapes the inclined piece 781 into a straight piece 881, resulting in the molded product 88. After molding is complete, the lower ejector pin 83 ejects the straight piece 881 from the upper die 82.

[0079] S6, blanking. After forming is completed, the material strip 100 is pushed back further for blanking to obtain the finished product 93.

[0080] The molded product 88 is pushed back to the blanking step and blanked by the blanking die 9. Figure 13 As shown, the blanking die 9 includes a blanking lower die 91 disposed on the lower fixed plate 30 and a blanking upper die 92 disposed on the upper fixed plate 40; a blanking hole 911 is provided in the center of the blanking lower die 91, and the inner diameter of the blanking hole 911 is larger than the outer contour size of the finished product 93; a third upper die hole 921 is provided in the center of the blanking upper die 92, and the inner diameter of the third upper die hole 921 is larger than the outer diameter of the forming column 581. When the mold is closed, the forming column 581 extends into the third upper die hole 921. A through hole is provided on the lower base plate 10 corresponding to the blanking hole 911, and the punched finished product 93 can fall out through the through hole. The blanking lower die 91 and the blanking upper die 92 are closed to punch the molded product 88 from the material strip 100 to obtain the finished product 93. The finished product 93 falls out from the blanking hole 911 and the through hole of the lower base plate 10.

[0081] The present invention adopts the module 200 to process the material strip 100. The material strip 100 only needs to be guided backward according to the working steps and processed in sequence by the molds of the corresponding working steps to obtain a connector with a main body, a positioning piece, and a positioning groove integrated into one, which saves the subsequent welding or assembly procedures, the processing procedure is simpler, and the production efficiency is higher; moreover, the processing of the main body and the positioning piece of the connector are both performed by mold stamping. On the one hand, the stamping processing speed is fast, and basically no waste is generated during the processing process, and the consistency of the products formed by the mold is good, thereby ensuring the processing quality of the connector, saving the maintenance and replacement procedures and time, shortening the processing cycle, improving production efficiency, reducing costs, and reducing material waste; on the other hand, through molding by the module 200, the cutting marks on the product surface caused by defects in the machining process can be eliminated; the positioning groove of the connector is performed in the mold by the rotary cutting device 6, which saves the process, saves the circulation cost of the semi-finished workpiece, and avoids the generation of defective products caused during the transportation process, thereby improving production efficiency, reducing processing costs, reducing processing errors, improving processing accuracy, and improving the yield rate.

[0082] The above description is an explanation of the present invention, not a limitation thereof. The present invention may be modified in any manner without violating the spirit of the present invention. In this embodiment, the die 200 uses a one-out-one method (i.e., one product is produced after one stroke of the punch press is completed). In other embodiments, a one-out-two, one-out-three, or one-out-multiple method may be used to better increase production capacity and reduce costs. Furthermore, a single motor 63 may be used to simultaneously drive two or more rotary cutting devices 6, thereby completing rotary cutting of multiple products simultaneously, reducing the investment in mold materials, and lowering maintenance costs.

Claims

1. A processing module for a connector, comprising a lower seat plate (10) and an upper seat plate (20), wherein a lower fixing plate (30) is provided on the top of the lower seat plate (10), and an upper fixing plate (40) is provided on the bottom of the upper seat plate (20), wherein the lower fixing plate (30) is connected to a workbench, and the upper fixing plate (40) is connected to a punch press; characterized in that: The lower fixed plate (30) is provided with a plurality of floating pins (60), and the floating pins (60) are provided with a material guide groove (601). When in use, the material strip (100) is pushed through the material guide groove (601); the lower fixed plate (30) and the upper fixed plate (40) are provided with at least a punching step, a stretching step, a rotary cutting step, a tearing step, a forming step and a blanking step, a punching die is provided on the punching step, a stretching die is provided on the stretching step, a rotary cutting device (6) is provided on the rotary cutting step, a tearing die (7) is provided on the tearing step, a forming die (8) is provided on the forming step, and a blanking die (9) is provided on the blanking step; the punching die, the stretching die, the tearing die (7), the forming die (8) and the blanking die (9) respectively include an upper die and a lower die, the lower die is provided on the lower fixed plate (30), and the upper die is provided on the upper fixed plate (40). The rotary cutting device (6) is connected to the upper fixed plate (40); a driving shaft (62) and a knife rod (64) are provided on the housing (61) of the rotary cutting device (6); the driving shaft (62) is connected to the motor (63); the lower end of the knife rod (64) is connected to the knife holder (65); a knife arm (651) of the knife holder (65) is connected to the knife rod (64) through a pin (66); a cutter (652) is provided at one end of the knife arm (651) and a centrifugal block (653) is provided at the other end; the cutter (652) and the centrifugal block (653) are located on opposite sides of the pin (66); when the knife holder (65) rotates, the centrifugal force generated by the centrifugal block (653) causes the knife arm (651) to rotate around the pin (66) and press the cutter (652) onto the workpiece; a bottom support assembly (69) is provided on the lower fixed plate (30) and located directly below the rotary cutting device (6).

2. The processing module for a connector according to claim 1, characterized in that: The driving shaft (62) and the cutter bar (64) are driven by gear meshing.

3. The processing module for a connector according to claim 2, characterized in that: A plurality of tool holders (65) are provided on the tool rod (64), and the mass and / or rotation radius of the centrifugal block (653) on each tool holder (65) is the same or different; a limiting structure is provided on the tool arm (651) to limit the rotation angle of the tool arm (651); a torsion spring (67) is sleeved on the shaft portion of the pin (66) located between the tool holder (65) and the connecting rod (642); the upper free end (672) of the torsion spring (67) is clamped on the tool rod (64), and the lower free end (673) of the torsion spring (67) is clamped on the positioning column (654) of the tool arm (651); the cutter (652) and the centrifugal block (653) are integrally formed on the tool arm (651), or assembled to the tool arm (651).

4. The processing module for a connector according to claim 1, characterized in that: The bottom support seat (691) of the bottom support assembly (69) is connected to the fourth floating block (693) through a plurality of transition pins. The fourth floating block (693) is connected to the lower seat plate (10) through a tenth spring (694). The bottom support rod (692) is connected to the lower fixed plate (30). The bottom support rod (692) is vertically penetrated through the center of the bottom support seat (691); when supporting, the bottom support seat (691) is supported on the bottom of the workpiece, and the bottom support rod (692) extends into and is supported in the forming column (581).

5. The processing module for a connector according to claim 1, characterized in that: A guide pin (70) is provided on the upper fixed plate (40) for each working step, a first guide hole (1001) is provided on the material strip (100) corresponding to each working step, and a second guide hole (301) is provided on the lower fixed plate (30) corresponding to each working step; when the guide pin (70) descends together with the upper fixed plate (40), it passes through the first guide hole (1001) of the material strip (100) and the second guide hole (301) of the lower fixed plate (30) in sequence to guide the material strip (100); a punching rod (80) is provided on the upper fixed plate (40) in front of the punching die to punch the guide hole for the material strip (100).

6. The processing module for a connector according to claim 1, characterized in that: The punching step includes an inner cutting step and an outer cutting step. The inner cutting step is provided with an inner cutting mold (1), the inner cutting mold (1) includes an inner cutting lower mold (11), an inner cutting upper mold (12), and an inner cutting stripping block (13). The inner cutting stripping block (13) is connected to the lower seat plate (10) via a second spring (14); the outer cutting step is provided with an outer cutting mold (2), the outer cutting mold (2) includes an outer cutting lower mold (21), an outer cutting upper mold (22), and an outer cutting stripping block (23). The outer cutting stripping block (23) The inner and outer dies (11 and 21) are connected to the lower seat plate (10) via a third spring (24); a cut hole is provided in the center of the inner and outer dies (11 and 21); the outer contours of the main bodies of the inner and outer dies (12 and 22) match the inner contours of the cut hole; a plurality of cut notches are provided on the outer peripheral edges of the lower ends of the inner and outer dies (12 and 22); the inner and outer notches (121) of the inner and outer dies (221) of the outer and outer dies (22) are arranged side by side or staggered.

7. The processing module for a connector according to claim 1, characterized in that: The stretching step includes a bulge drawing step, a pre-stretching step, and a stretching forming step. A bulge drawing die (3) is provided on the bulge drawing step, a pre-stretching die (4) is provided on the pre-stretching step, and a stretching forming die (5) is provided on the stretching forming step. The lower dies of the bulge drawing die (3), the pre-stretching die (4), and the stretching forming die (5) are connected with floating blocks, which are connected to the lower seat plate (10) through springs. A punch rod is vertically passed through the lower die, and the punch rod is connected to the lower fixed plate (30). The upper dies of the bulge drawing die (3), the pre-stretching die (4), and the stretching forming die (5) are connected to the upper fixed plate (40). An upper ejector rod is vertically passed through the upper die, and the upper ejector rod is connected to the upper seat plate (20) through a spring.

8. The processing module for a connector according to claim 1, characterized in that: The lower molds of the tearing mold (7) and the forming mold (8) are connected to floating blocks, which are connected to the lower seat plate (10) through springs. A plurality of lower ejector rods are vertically provided on the lower mold, and the lower ejector rods are connected to the lower fixed plate (30); the upper molds of the tearing mold (7) and the forming mold (8) are connected to the upper fixed plate (40), and upper ejector rods are vertically provided on the upper mold, and the upper ejector rods are connected to the upper seat plate (20) through springs; the positions and numbers of the upper ejector rods and the lower ejector rods correspond to the positions and numbers of the positioning pieces of the finished product (93); the upper molds of the tearing mold (7) and the forming mold (8) are provided with a plurality of lower ejector rods vertically provided on the lower mold, and the lower ejector rods are connected to the lower fixed plate (30); the upper molds of the tearing mold (7) and the forming mold (8) are provided with a plurality of lower ejector rods vertically provided on the upper fixed plate (4 ... There is an upper die hole; the upper end of the tearing lower ejector rod (73) of the tearing die (7) and the lower end of the tearing upper ejector rod (74) are both triangular slopes, the top of the tearing lower ejector rod (73) is a sharp end, and the bottom of the tearing upper ejector rod (74) is a sharp end; the upper end of the forming lower ejector rod (83) and the upper end of the forming upper ejector rod (84) of the forming die (8) are both square columns; a blanking hole (911) is provided in the center of the blanking lower die (91) of the blanking die (9), and the inner diameter of the blanking hole (911) is larger than the outer contour size of the finished product (93); and a third upper die hole (921) is provided in the center of the blanking upper die (92).

9. The processing module for a connector according to claim 1, characterized in that: A plurality of guide posts (50) are provided between the lower fixed plate (30) and the upper fixed plate (40), and the lower fixed plate (30) and the upper fixed plate (40) are respectively sleeved on the guide posts (50) through guide sleeves; a stripper plate (90) is further connected and provided below the upper fixed plate (40), and a plurality of first springs (901) are provided between the stripper plate (90) and the upper fixed plate (40), and the guide posts (50) and the guide pins (70) pass through the stripper plate (90); and idle steps are respectively provided on the lower fixed plate (30) and the upper fixed plate (40) between the external cutting step and the convex bulging step, between the stretching forming step and the rotary cutting step, and between the rotary cutting step and the tearing step.

10. A processing technology for a connector, characterized in that: The processing module for connecting parts according to claim 1 is used for processing, comprising the following steps: S0, punching a pilot hole, punching a first pilot hole (1001) on the material strip (100) by using a punching rod (80) on the upper fixed plate (40); S1, punching, including two sub-steps: S11 internal cutting and S12 external cutting. In the S11 internal cutting sub-step, an internal cutting product (15) is punched out on the material strip (100) by using an internal cutting die (1). In the S12 external cutting sub-step, an external cutting product (25) is further punched on the internal cutting product (15) by using an external cutting die (2). S2, stretching, including several stretching sub-steps, punching out a forming column (581) on the externally cut product (25) through a stretching die to obtain a stretched formed product (58); S3, rotary cutting, using a rotary cutting device (6) to rotary cut an annular groove (681) on the forming column (581) by a centrifugal processing method to obtain a rotary cut product (68); S4, tearing, tearing oblique pieces (771) from the rotary cut product (68) by a tearing die (7) to obtain a torn product (77); S5, forming, shaping the oblique piece (771) into a straight piece (871) on the torn product (77) by a forming mold (8) to obtain a formed product (87); S6, blanking, punching the formed product (87) from the material belt (100) through the blanking die (9) to obtain the finished product (93).

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