A cable wire spring crimping device

Abstract

The present application relates to cable crimping technical field, disclose a kind of cable spring's crimping device, including base, fixed seat is equipped on base upside, fixed seat top around fixedly connected slide rod, slide rod outside slide connection moving plate and fixedly connected fixed plate, moving plate bottom end connection hydraulic cylinder;Fixed plate and moving plate side edge are equipped with dismounting mechanism, contain intermeshing worm and worm wheel, worm wheel eccentric connection connecting rod and clamping plate;Base bottom is equipped with adjusting mechanism, contain screw rod and movable block, movable block is connected U type frame by connecting rod, base front side is equipped with level meter.The present application is driven worm wheel and connecting rod transmission by rotating worm, synchronous push-pull clamping plate, release or restore to mould's limit clamping, shorten mould replacement time;By observing level meter and rotating screw rod drive movable block translation, change base one side height by connecting rod to calibrate horizontal posture, avoid stress deviation caused by inclination, guarantee forming quality.

Description

Technical Field

[0001] This invention relates to the field of cable crimping technology, specifically to a cable crimping device with a spring. Background Technology

[0002] During cable processing, crimping equipment is needed to mechanically press the wire ends to the corresponding terminals. For spring-loaded cables, the terminal shape and size vary due to product batches and specifications. To meet different processing requirements, the equipment must disassemble and replace the matching upper and lower molds.

[0003] The existing mold fixing structure of crimping equipment mainly relies on independent bolts for multi-point interlocking locking. In actual mold changing operations, workers must use special tools to loosen and remove the fastening bolts around the pressure plate one by one. This separate, single-point disassembly and assembly method is complicated, and mold replacement and alignment are time-consuming. Repeated disassembly and tightening actions will accelerate the mechanical wear at the threaded connection, making it difficult for the mold to maintain a stable limiting clamping force after multiple replacements.

[0004] Meanwhile, existing crimping devices typically use a rigid, integral base placed directly on the processing table, lacking a horizontal alignment correction structure. If there is even a slight height difference or tilt on the external worktable, the device will operate at an angle after placement. During vertical crimping, the tilted posture of the base causes the closing force of the upper and lower dies to deviate from the reference vertical line. Uneven force distribution occurs between the dies, resulting in localized lateral deviation stress at the crimping position, leading to decreased terminal forming quality or insufficient connection strength. The inefficient die fastening method and the inability to adjust the horizontal alignment of the base jointly restrict the terminal crimping processing quality and production line changeover efficiency.

[0005] Therefore, this invention proposes a spring-loaded crimping device for cables to overcome the shortcomings of the prior art. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a cable crimping device with a spring, which solves the problems of cable crimping equipment, such as the complicated disassembly and assembly process caused by the use of independent bolts for multi-point locking of the mold, the easy wear of the threads leading to a decrease in clamping force, and the lack of a horizontal posture correction structure on the base causing the equipment to be placed tilted, resulting in crimping force deviation and reduced molding quality.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solution: a spring-loaded cable crimping device, comprising a base, a fixed seat provided on the upper side of the base, sliding rods fixedly connected to the top four sides of the fixed seat, a fixed plate fixedly connected to the upper outer side of a plurality of sliding rods, a movable plate slidably connected to the outer side of a plurality of sliding rods, a disassembly mechanism provided on one side of the fixed plate and the movable plate, and an adjustment mechanism provided at the bottom of the base; The disassembly mechanism includes worm gears and connecting rod one. Two worm gears are rotatably connected to the front sides of the fixed plate and the movable plate, respectively. The rear ends of the two worm gears are rotatably connected to the rear interior sides of the corresponding fixed plate and movable plate, respectively. Rotating rods are rotatably connected to the left and right ends of the interior sides of the fixed plate and the movable plate, respectively. A worm wheel is fixedly connected to one end of the rotating rod, and a fixed shaft is fixedly connected to one side of the worm wheel. A rotating shaft one is rotatably connected to one end of the fixed shaft. U-shaped plates are slidably connected to the left and right sides of the fixed plate and the movable plate, and a rotating shaft two is rotatably connected to one end of the U-shaped plate. A clamping plate is fixedly connected to one side of the U-shaped plate.

[0008] Preferably, the adjustment mechanism includes a placement plate and a connecting rod. The placement plate is located at the bottom of the base. Opening slots are provided on both the left and right sides of the interior of the placement plate. Lead screws are threaded to both the left and right sides of the placement plate. The adjacent ends of the two lead screws pass through the corresponding opening slots. A movable block is threaded to the outer side of the lead screw. A rotating shaft is rotatably connected to the top of the movable block. A U-shaped frame is fixedly connected to both the left and right sides of the bottom of the base. A rotating shaft is rotatably connected to the interior of the U-shaped frame. A level is fixedly connected to the front of the base.

[0009] Preferably, an upper mold is provided between the upper clamping plates, and a lower mold is provided between the lower clamping plates.

[0010] Preferably, the base has support seats on both the front and rear sides of its bottom, and telescopic rods are fixedly connected to the top left and right sides of the two support seats. The top ends of the multiple telescopic rods are fixedly connected to the bottom of the base.

[0011] Preferably, a hydraulic cylinder is fixedly connected to the top of the base, a connecting seat is fixedly connected to the front side of the top of the hydraulic cylinder, and a pressure rod is rotatably connected to the top inner side of the connecting seat.

[0012] Preferably, springs are fitted on the outer sides of the plurality of sliding rods, and the upper and lower ends of the plurality of springs are respectively in contact with the adjacent side of the fixed plate and the movable plate.

[0013] Preferably, the output end of the hydraulic cylinder passes through the fixed seat and is fixedly connected to the bottom of the movable plate, and the top ends of the plurality of slide rods are threaded with bolts.

[0014] Preferably, the plurality of worm gears are respectively meshed with the left and right sides of the corresponding worm, and a rubber pad is fixedly connected to one side of each of the plurality of clamps.

[0015] Preferably, the two movable blocks are slidably connected to the interior of the corresponding opening slots, and the two rotating shafts are respectively connected to the corresponding rotating shafts via the connecting rod.

[0016] Preferably, the top left and right sides of the base are fixedly connected to support plates, and the left and right sides of the fixed seat are respectively fixedly connected to the adjacent sides of the two support plates.

[0017] This invention provides a spring-loaded cable crimping device. It offers the following advantages: 1. This invention designs a mold clamping structure based on worm gear transmission and eccentric connecting rod linkage. By rotating the external worm gear, the operator can simultaneously push and pull the clamping plates on both sides using the internal mechanical connecting rod, quickly releasing or restoring the limiting state of the upper and lower molds. This structure changes the conventional method of fixing by disassembling and assembling bolts one by one, shortening the mold change preparation time when processing spring cable terminals of different specifications.

[0018] 2. This invention incorporates a leveling mechanism at the bottom of the device, consisting of a level and a lead screw. Before operation, the position of the bubble in the front level is observed. Rotating the bottom lead screw drives the movable block to move laterally along a defined trajectory, changing the vertical support height of one side of the base through the transmission between the connecting rod and the frame. The device can be calibrated to a horizontal working posture before crimping, avoiding pressure deviation caused by an inclined base surface and ensuring the quality of terminal crimping.

[0019] 3. This invention constructs a pressing execution architecture that combines multi-slide bar guidance with spring reset. The moving plate is driven by hydraulic power to rise and fall vertically along the surrounding slide bars, and the slide bar structure limits the lateral offset during the pressing and closing process. The springs sleeved on the outside of the slide bars compress and store energy when the mold moves upward and engages, and release elastic potential energy during the hydraulic decompression phase to push the moving plate downward and smoothly reset. The guiding constraint and elastic buffer mechanism work together to maintain the alignment accuracy of the upper and lower molds and reduce the rigid impact loss generated when the mechanical parts fall back. Attached Figure Description

[0020] Figure 1 This is a front view of the present invention; Figure 2 This is a side view of the present invention; Figure 3 This is a bottom view of the present invention; Figure 4 This is a partial structural cross-sectional view of the present invention; Figure 5 This is a cross-sectional view of the fixing plate structure of the present invention; Figure 6 for Figure 5 Enlarged view of point A in the image; Figure 7 This is a partial structural breakdown diagram of the present invention; Figure 8 This is a cross-sectional view of the adjusting mechanism of the present invention.

[0021] The components are as follows: 1. Base; 2. Support plate; 3. Fixed seat; 4. Slide rod; 5. Fixed plate; 6. Moving plate; 7. Disassembly mechanism; 71. Worm gear; 72. Rotating rod; 73. Worm wheel; 74. Fixed shaft; 75. Rotating shaft one; 76. U-shaped plate; 77. Rotating shaft two; 78. Connecting rod one; 79. Clamping plate; 710. Rubber pad; 711. Upper mold; 712. Lower mold; 8. Adjustment mechanism; 81. Placement plate one; 82. Support seat; 83. Opening slot; 84. Lead screw; 85. Movable block; 86. Rotating shaft three; 87. U-shaped frame; 88. Rotating shaft four; 89. Connecting rod two; 810. Level; 811. Telescopic rod; 9. Hydraulic cylinder; 10. Connecting seat; 11. Pressure rod; 12. Bolt; 13. Spring. Detailed Implementation

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example: Please refer to Figures 1 to 3 This invention provides a cable crimping device with a spring, which aims to solve the problems of cumbersome mold replacement and uneven base placement affecting crimping accuracy in the prior art.

[0024] Please refer to Figure 1 and Figure 2The spring-loaded cable crimping device includes a base 1 and a fixed seat 3 fixedly connected to the upper side of the base 1. The base 1 serves as the mounting base for the entire device, supporting the mechanical components above, while the fixed seat 3 supports the guide components. Support plates 2 are fixedly connected to the top left and right sides of the base 1. The left and right sides of the fixed seat 3 are fixedly connected to the adjacent inner sides of the two support plates 2 respectively. The support plates 2 enhance the structural rigidity and connection stability between the fixed seat 3 and the base 1. Slide rods 4 are fixedly connected to the top four edges of the fixed seat 3. The same fixed plate 5 is fixedly connected to the upper outer part of the multiple slide rods 4. Bolts 12 are threaded to the top of the multiple slide rods 4. The bolts 12 limit the top position of the fixed plate 5 to prevent the fixed plate 5 from being dislodged under force. The same moving plate 6 is slidably connected to the outer side of the multiple slide rods 4. The slide rods 4 serve as linear guides for the moving plate 6 to slide up and down, ensuring that the lifting trajectory of the moving plate 6 is vertical. Disassembly mechanisms 7 are installed on the same side of the fixed plate 5 and the moving plate 6. The disassembly mechanisms 7 are used for clamping and quick mold changing. An adjustment mechanism 8 is installed at the bottom of the base 1. The adjustment mechanism 8 adjusts the overall level of the base 1.

[0025] A hydraulic cylinder 9 is fixedly connected to the top center area of ​​the base 1. The hydraulic cylinder 9 provides the mold closing and pressing power. The output end of the hydraulic cylinder 9 passes through the center reserved hole of the fixed seat 3 and is fixedly connected to the bottom of the moving plate 6. A connecting seat 10 is fixedly connected to the top front shell of the hydraulic cylinder 9. A pressure rod 11 is rotatably connected to the top inner side of the connecting seat 10. When the operator presses down the pressure rod 11, it drives the internal hydraulic oil circuit of the hydraulic cylinder 9 to work, pushing the output end of the hydraulic cylinder 9 to extend and drive the moving plate 6 to slide upward along the slide rod 4 to perform the pressing action.

[0026] Springs 13 are fitted on the outer sides of multiple sliding rods 4. After the pressing stroke is completed, the springs 13 provide a reset buffer force. The upper and lower ends of the multiple springs 13 are in contact with the bottom surface of the fixed plate 5 and the top surface of the moving plate 6, respectively. When the hydraulic cylinder 9 drives the moving plate 6 to move upward, the moving plate 6 squeezes the springs 13 to put them in a compressed and stored state. After the hydraulic cylinder 9 is depressurized, the springs 13 release elastic potential energy to push the moving plate 6 to reset smoothly downward and reduce the mechanical fall impact force.

[0027] Please refer to Figure 4 , Figure 5 and Figure 6 The front sides of the fixed plate 5 and the movable plate 6 are respectively rotatably connected to the worm gear 71. The rear end of the worm gear 71 is rotatably connected to the rear side inside the corresponding fixed plate 5 and the movable plate 6. The left and right ends of the fixed plate 5 and the movable plate 6, which are far apart, are rotatably connected to the rotating rod 72. The end of the rotating rod 72 is fixedly connected to the worm wheel 73. The worm wheel 73 is respectively meshed with the left and right sides of the corresponding worm gear 71. The external tool drives the worm gear 71 to rotate, which drives the worm wheels 73 on both sides to rotate synchronously in opposite directions.

[0028] A fixed shaft 74 is fixedly connected to the eccentric position on the side surface of the worm gear 73. A rotating shaft 75 is rotatably connected to the end of the fixed shaft 74. U-shaped plates 76 are slidably connected to the left and right sides of the fixed plate 5 and the movable plate 6. A rotating shaft 77 is rotatably connected to the end of the U-shaped plate 76. The rotating shaft 75 and the rotating shaft 77 are movably connected by a connecting rod 78. The rotation of the worm gear 73 drives the rotating shaft 75 to make a circular motion. The rotating shaft 75 pulls the connecting rod 78 to push and pull the rotating shaft 77, driving the U-shaped plate 76 to slide horizontally on the left and right sides of the fixed plate 5 and the movable plate 6.

[0029] A clamping plate 79 is fixedly connected to the outside of the U-shaped plate 76. An upper mold 711 is set between the upper clamping plates 79, and a lower mold 712 is set between the lower clamping plates 79. Rubber pads 710 are fixedly connected to the inner sides of the clamping plates 79. The rubber pads 710 are in contact with the surfaces of the upper mold 711 and the lower mold 712, which increases the friction while preventing the clamping plates 79 from rigidly squeezing and damaging the outer wall of the mold.

[0030] In the assembled state, the U-shaped plate 76 slides against the left and right side walls of the fixed plate 5 and the movable plate 6. The rotation of the worm gear 71 is converted into a lateral pulling force of the connecting rod 78 through the worm gear transmission mechanism, which pulls the U-shaped plate 76 together with the clamping plate 79 to move outward to release the limiting clamping, and the upper mold 711 and lower mold 712 of the corresponding specifications are installed. The worm gear 71 is rotated in the opposite direction to drive the clamping plate 79 to retract inward to press the mold. This linkage clamping structure of worm gear and eccentric connecting rod combination ensures high stability of the installation position and anti-deflection ability of the upper mold 711 and lower mold 712 during the pressure receiving process.

[0031] Please refer to Figure 3 , Figure 7 and Figure 8 An adjustment mechanism 8 is installed at the bottom of the base 1. The adjustment mechanism 8 includes a placement plate 81 and a connecting rod 89. The placement plate 81 is located at the bottom of the base 1. Opening slots 83 are provided on both the left and right sides of the placement plate 81. A lead screw 84 is horizontally threaded to both the left and right sides of the placement plate 81. The adjacent ends of the lead screw 84 extend into the corresponding opening slots 83. A movable block 85 is threaded to the outer surface of the lead screw 84. The outer wall of the movable block 85 is slidably connected to the inside of the corresponding opening slot 83.

[0032] The top horizontal end face of the movable block 85 is rotatably connected to the rotating shaft 3 86. The bottom left and right sides of the base 1 are vertically fixed to the U-shaped frame 87. The two inner side walls of the U-shaped frame 87 are rotatably connected to the rotating shaft 4 88. The rotating shaft 4 88 is connected to the corresponding rotating shaft 3 86 through the connecting rod 2 89. The center area of ​​the front panel of the base 1 is fixedly connected to the level 810. The level 810 directly displays the horizontal tilt state of the base 1. The manually rotated screw 84 uses the threaded propulsion mechanism to drive the movable block 85 to move laterally along the limiting trajectory of the opening slot 83. The displacement of the movable block 85 pushes and pulls the connecting rod 2 89, changing the vertical height of the U-shaped frame 87.

[0033] Support seats 82 are provided on the front and rear sides of the bottom of the base 1. Telescopic rods 811 are vertically fixed to the left and right sides of the top horizontal end face of the support seat 82. The top of the telescopic rods 811 is fixedly connected to the bottom surface of the base 1. The bottom surface of the support seat 82 is in contact with the ground to provide basic support area. The telescopic rods 811 use the internal sleeve and the sliding rod to slide relative to each other and follow the adjustment mechanism 8 to change the vertical length synchronously. At the same time, the rigid structure of the telescopic rods 811 limits the lateral displacement and sway during the lifting and lowering process of the base 1.

[0034] Working principle: Before crimping, observe the position of the bubble inside the level 810 on the front side of the base 1. If the bubble deviates from the center position, it indicates that the equipment is placed at an angle. At this time, manually rotate the lead screw 84 corresponding to the angled side. The lead screw 84 drives the movable block 85 to move laterally along the opening groove 83 of the placement plate 1 81 using a threaded transmission mechanism. The displacement of the movable block 85 simultaneously pushes and pulls the top rotating shaft 3 86, causing it to move laterally. The rotating shaft 3 86, through the connecting rod 2 89, forces the rotating shaft 4 88 inside the U-shaped frame 87 to change its height. The mechanical transmission mechanism slowly raises the angled side of the base 1 until the bubble inside the level 810 returns to the center horizontal position, ensuring that the equipment is in a horizontal state and avoiding force deviation during crimping due to tilt.

[0035] When faced with crimping requirements for spring cable terminals of different shapes and sizes, a mold replacement operation is performed. The operator can manually rotate the worm gear 71 on the front side of the fixed plate 5 and the movable plate 6. The rotation of the worm gear 71 drives the meshing worm wheels 73 on both sides to rotate synchronously in the opposite direction. The rotating shaft 75 on the side of the worm wheel 73 then makes an eccentric circular motion. The rotating shaft 75 pulls the connecting rod 78 to move laterally outward. The connecting rod 78 drags the rotating shaft 77 and the end U-shaped plate 76 to slide outward on the side wall of the fixed plate 5 and the movable plate 6. The U-shaped plate 76 drives the outer clamping plate 79 and the rubber pad 710 to expand outward synchronously, releasing the limiting clamping state of the upper mold 711 and the lower mold 712. The original mold is taken out and the new upper mold 711 and lower mold 712 that are compatible with the terminal to be processed are installed. Then, the worm gear 71 is rotated in the opposite direction to lock it.

[0036] During cable crimping, the spring cable terminal is precisely placed into the cavity of the lower mold 712. The operator presses down the pressure rod 11 inside the connector 10, driving the hydraulic cylinder 9 to start working. The output end of the hydraulic cylinder 9 extends upward, pushing the moving plate 6 to rise vertically along the trajectory of the slide rod 4. The top of the moving plate 6 simultaneously squeezes the spring 13 upward, putting it in a compressed state. The moving plate 6 drives the lower mold 712 to close upward until it precisely engages with the upper mold 711 at the front end of the fixed plate 5, completing the terminal crimping process. After crimping, the hydraulic cylinder 9 is depressurized, and the spring 13 releases its elastic potential energy, pushing the moving plate 6 and the lower mold 712 downward to return to their original position, waiting for the next crimping cycle.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spring-loaded cable crimping device, comprising a base (1), characterized in that, A fixed seat (3) is provided on the upper side of the base (1). Slide rods (4) are fixedly connected to the top of the fixed seat (3) around its perimeter. The same fixed plate (5) is fixedly connected to the upper outer side of multiple slide rods (4). The same movable plate (6) is slidably connected to the outer side of multiple slide rods (4). A disassembly mechanism (7) is provided on one side of both the fixed plate (5) and the movable plate (6). An adjustment mechanism (8) is provided at the bottom of the base (1). The disassembly mechanism (7) includes a worm (71) and a connecting rod (78). The two worms (71) are rotatably connected to the front side of the fixed plate (5) and the moving plate (6), respectively. The rear ends of the two worms (71) are rotatably connected to the rear side of the corresponding fixed plate (5) and the moving plate (6), respectively. Rotating rods (72) are rotatably connected to the left and right ends of the interior of the fixed plate (5) and the moving plate (6), respectively. A worm wheel (73) is fixedly connected to one end of the rotating rod (72). A fixed shaft (74) is fixedly connected to one side of the worm wheel (73). A rotating shaft (75) is rotatably connected to one end of the fixed shaft (74). A U-shaped plate (76) is slidably connected to the left and right sides of the fixed plate (5) and the moving plate (6). A rotating shaft (77) is rotatably connected to one end of the U-shaped plate (76). A clamping plate (79) is fixedly connected to one side of the U-shaped plate (76).

2. The cable crimping device with spring according to claim 1, characterized in that, The adjustment mechanism (8) includes a placement plate (81) and a connecting rod (89). The placement plate (81) is located at the bottom of the base (1). The left and right sides of the placement plate (81) are provided with opening slots (83). The left and right sides of the placement plate (81) are threaded with lead screws (84). The adjacent ends of the two lead screws (84) pass through the corresponding opening slots (83). The outer side of the lead screws (84) is threaded with a movable block (85). The top of the movable block (85) is rotatably connected with a rotating shaft (86). The bottom left and right sides of the base (1) are fixedly connected with U-shaped frames (87). The inside of the U-shaped frames (87) is rotatably connected with a rotating shaft (88). The front side of the base (1) is fixedly connected with a level (810).

3. The cable crimping device with spring according to claim 1, characterized in that, An upper mold (711) is provided between the upper clamping plates (79), and a lower mold (712) is provided between the lower clamping plates (79).

4. The cable crimping device with spring according to claim 2, characterized in that, The base (1) has support seats (82) on the front and back sides of the bottom. The top left and right sides of the two support seats (82) are fixedly connected to telescopic rods (811). The tops of the multiple telescopic rods (811) are fixedly connected to the bottom of the base (1).

5. The cable crimping device with spring according to claim 1, characterized in that, A hydraulic cylinder (9) is fixedly connected to the top of the base (1), and a connecting seat (10) is fixedly connected to the front side of the top of the hydraulic cylinder (9). A pressure rod (11) is rotatably connected to the top inner side of the connecting seat (10).

6. The cable crimping device with spring according to claim 1, characterized in that, Springs (13) are fitted on the outer sides of the multiple sliding rods (4), and the upper and lower ends of the multiple springs (13) are in contact with the adjacent side of the fixed plate (5) and the moving plate (6), respectively.

7. A spring-loaded cable crimping device according to claim 5, characterized in that, The output end of the hydraulic cylinder (9) passes through the fixed seat (3) and is fixedly connected to the bottom of the moving plate (6). The top ends of the multiple sliding rods (4) are all threaded with bolts (12).

8. A spring-loaded cable crimping device according to claim 1, characterized in that, The multiple worm gears (73) are respectively engaged with the left and right sides of the corresponding worm (71), and a rubber pad (710) is fixedly connected to one side of each of the multiple clamping plates (79).

9. A spring-loaded cable crimping device according to claim 2, characterized in that, The two movable blocks (85) are slidably connected to the corresponding opening slots (83), and the two rotating shafts (88) are connected to the corresponding rotating shafts (86) through the connecting rods (89).

10. A spring-loaded cable crimping device according to claim 1, characterized in that, The top left and right sides of the base (1) are fixedly connected to support plates (2), and the left and right sides of the fixed seat (3) are respectively fixedly connected to the adjacent sides of the two support plates (2).

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