Die-change-free servo crimping device

Abstract

The utility model discloses a die-change-free servo crimping device, and relates to the technical field of wire harness processing. The upper part of the rack is fixedly provided with a vertical plate; the variable-diameter hexagonal crimping die is arranged at the lower part of the rack; the lifting mechanism comprises first guide rails, a first sliding block and a connecting rod, the first guide rails are vertically installed on the two sides of the front face of the vertical plate, the two sides of the first sliding block are slidably connected with the first guide rails, a rounded rectangular groove is formed in the back face of the first sliding block, the upper end of the connecting rod is connected with the first sliding block, and the lower end of the connecting rod is connected with the variable-diameter hexagonal crimping die; the driving device comprises a servo motor and a planetary reducer, the planetary reducer is installed on the back face of the vertical plate, an output shaft of the planetary reducer penetrates through the vertical plate, an eccentric wheel is arranged at the penetrating-out end of the planetary reducer, a bearing is arranged on the eccentric wheel, the bearing is attached to the inner side wall of the rounded rectangular groove to form rolling fit, and an output shaft of the servo motor is in transmission connection with the planetary reducer. According to the utility model, the terminal crimping height can be digitally set, and crimping of terminals of various specifications can be adapted.

Description

TECHNICAL FIELD

[0001] The utility model relates to a harness processing technical field, especially relates to a change-free mode servo crimping device. BACKGROUND

[0002] Terminal crimping refers to the process of connecting metal terminals and wire conductors together through mechanical pressure. By using a special crimping tool, pressure is applied to a specific part of the terminal, causing the metal part of the terminal to tightly wrap around the wire conductor, thereby achieving reliable electrical connection and mechanical fixation. However, the existing crimping devices on the market mostly use cam-type lifting mechanisms to adjust the crimping height of the metal terminals. When the cam-type lifting mechanism is working, the cam needs to rotate one circle, and the rotational motion of the cam is converted into the lifting motion of the driven part. However, this type of cam-type lifting mechanism cannot accurately adjust the driven part to a certain height, and it is not convenient to adjust the terminal crimping height. The existing crimping devices on the market mostly use a single crimping method. One specification of terminal is suitable for crimping with wire of the same specification. For different specifications of gold terminals, the corresponding crimping mold needs to be manually replaced, which has low automation degree and reduces production efficiency. SUMMARY

[0003] The technical problem solved by the utility model is to provide a change-free mode servo crimping device to solve the problems raised in the background.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme:

[0005] A change-free mode servo crimping device, comprising: a rack, a vertical plate is fixed on the upper part of the rack; a variable-diameter hexagonal crimping mold, the variable-diameter hexagonal crimping mold is arranged on the lower part of the rack; a lifting mechanism, the lifting mechanism comprises a first guide rail, a first sliding block and a connecting rod, the first guide rail is vertically installed on the front surface of the vertical plate on both sides, the first sliding block is slidably connected with the first guide rail on both sides, and a rounded rectangular groove is arranged on the back surface of the first sliding block, the upper end of the connecting rod is connected with the first sliding block, and the lower end of the connecting rod is connected with the variable-diameter hexagonal crimping mold; a driving device, the driving device comprises a servo motor and a planetary reducer, the planetary reducer is installed on the back surface of the vertical plate, the output shaft of the planetary reducer penetrates through the vertical plate and is provided with an eccentric wheel at the penetrating end, a bearing is arranged on the eccentric wheel, the bearing is in close contact with the inner side wall of the rounded rectangular groove to form a rolling fit, and the output shaft of the servo motor is in transmission connection with the planetary reducer.

[0006] In some embodiments, the variable-diameter hexagonal crimping die comprises a base, a movable crimping part which is slidably connected to the base, a connecting rod connected to the lower end of the movable crimping part, and a fixed crimping part fixedly connected to the base below the movable crimping part. Opposite sides of the movable crimping part and the fixed crimping part are provided with crimping surfaces, and the two crimping surfaces are butted against each other to form a variable-diameter hexagonal crimping interface.

[0007] In some embodiments, the die-changing-free servo crimping device further comprises a guide mechanism arranged on the front side of the variable-diameter hexagonal crimping die, and a plurality of pairs of guide blocks are arranged on the guide mechanism for guiding different sizes of wires to pass through to reach the variable-diameter hexagonal crimping die.

[0008] Compared with the prior art, the utility model at least realizes the following beneficial effects:

[0009] The servo motor drives the planetary reducer to work, the planetary reducer converts the high-speed rotation of the servo motor into low-speed high-torque output, the bearing on the eccentric wheel can roll along the inner side wall of the rounded rectangular groove, the rotation of the eccentric wheel can drive the first sliding block to slide up and down along the first guide rail, so that the connecting rod drives the movable crimping part to move up and down, and the movable crimping part cooperates with the fixed crimping part to realize terminal crimping work. In this process, the crimping height of the terminal is realized by digitally setting the rotation angle of the servo motor, the servo motor is accurately controlled to rotate to a specific angle by inputting a control signal, the eccentric wheel is rotated to a specific angle, so that the crimping height of the variable-diameter hexagonal crimping die on the terminal is accurately adjusted, and the adjustment is convenient. In addition, the variable-diameter hexagonal crimping die can correspondingly change the caliber of the hexagonal crimping interface according to the terminal specification, and can adapt to terminals of various specifications. BRIEF DESCRIPTION OF DRAWINGS

[0010] One or more embodiments of the utility model will now be described by way of example only, with reference to the accompanying drawings:

[0011] Figure 1 It is a structural schematic view of the embodiment of the application;

[0012] Figure 2 It is a structural schematic view of the variable-diameter hexagonal crimping die of the embodiment of the application;

[0013] Figure 3 It is a structural schematic view of the lifting mechanism and the driving device of the embodiment of the application;

[0014] Figure 4 It is a structural schematic view of the lifting mechanism and the driving device of the embodiment of the application from another perspective;

[0015] Figure 5 It is a structural schematic view of the guide mechanism of the embodiment of the application;

[0016] Figure 6 Structure diagram of a mold base of an embodiment of the present application.

[0017] The figure marks are: 1, rack; 11, vertical plate; 2, variable-diameter hexagonal crimping die; 21, base; 22, movable crimping part; 23, fixed crimping part; 3, lifting mechanism; 31, first guide rail; 32, first sliding block; 321, round rectangular groove; 33, connecting rod; 4, driving device; 41, servo motor; 42, planetary reducer; 421, eccentric wheel; 4211, bearing; 5, hexagonal crimping port; 6, guiding mechanism; 61, mounting seat; 62, air cylinder; 63, guiding plate; 7, guiding block; 71, guiding hole; 8, adjusting mechanism; 81, second guide rail; 82, rack; 9, mold base; 91, bottom plate; 911, limiting block; 912, stop block; 92, top block; 921, adjusting nut; 922, adjusting wrench; 923, protruding block. DETAILED DESCRIPTION

[0018] The utility model will be described in detail below with reference to the exemplary embodiments in the drawings. It should be understood that the present application can be realized in various different forms, and should not be understood as being limited to the embodiments described herein. The embodiments are provided to make the disclosure of the present application more complete and to fully convey the concept of the present application to those skilled in the art.

[0019] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "several", "a plurality of" is two or more, unless otherwise explicitly specified and limited. In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can include the first and second features directly contacting, or the first and second features not directly contacting but contacting through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0020] As Figures 1-4As shown, a die changing free servo crimping device includes a rack 1, a variable diameter hexagonal crimping die 2, a lifting mechanism 3 and a driving device 4; wherein: the upper part of the rack 1 is fixed with a vertical plate 11; the variable diameter hexagonal crimping die 2 is arranged at the lower part of the rack 1; the lifting mechanism 3 includes a first guide rail 31, a first sliding block 32 and a connecting rod 33, the first guide rail 31 is vertically installed on the front side of the vertical plate 11, the first sliding block 32 is slidably connected with the first guide rail 31 on both sides, and a rounded rectangular groove 321 is arranged on the back of the first sliding block 32, the upper end of the connecting rod 33 is connected with the first sliding block 32, and the lower end is connected with the variable diameter hexagonal crimping die 2; the driving device 4 includes a servo motor 41 and a planetary reducer 42, the planetary reducer 42 is installed on the back of the vertical plate 11, the output shaft of the planetary reducer 42 penetrates through the vertical plate 11 and the end penetrating out is provided with an eccentric wheel 421, specifically, the output shaft of the planetary reducer 42 is rotatably connected with the vertical plate 11, and the eccentric wheel 421 is provided with a bearing 4211, the bearing 4211 is fitted with the inner side wall of the rounded rectangular groove 321 to form a rolling fit, preferably, the bearing 4211 adopts a cylindrical roller bearing, and the output shaft of the servo motor 41 is drivingly connected with the planetary reducer 42.

[0021] Specifically, the variable diameter hexagonal crimping die 2 includes a base 21, a movable crimping part 22 and a fixed crimping part 23, the base 21 is provided with a circular hole for the power line to pass through, the movable crimping part 22 is slidably connected to the base 21, and the lower end of the connecting rod 33 is connected with the movable crimping part 22, the fixed crimping part 23 is fixedly connected to the base 21 and located below the movable crimping part 22, opposite sides of the movable crimping part 22 and the fixed crimping part 23 are provided with crimping surfaces, and the two crimping surfaces are butted to form a variable diameter hexagonal crimping interface 5. The structure of the variable diameter hexagonal crimping die 2 belongs to the prior art, for example, the Chinese patent document CN215452004U discloses a variable diameter hexagonal terminal crimping die, which includes an upper die and a lower die, the upper die and the lower die are slidably connected with wedge-shaped blocks having first crimping surfaces and straight sliding blocks having second crimping surfaces, and are connected with fixed blocks having inclined third crimping surfaces. Similarly, the wedge-shaped blocks and the straight sliding blocks are slidably connected to the movable crimping part 22 and the fixed crimping part 23 of the utility model, and the fixed blocks are also connected, and the crimping surfaces of the wedge-shaped blocks, the straight sliding blocks and the fixed blocks on the movable crimping part 22 and the fixed crimping part 23 are butted to form a crimping interface with a longitudinal cross section in the shape of a hexagon, so as to adapt to various specifications of terminal.

[0022] The working principle of the utility model is:

[0023] The servo motor 41 drives the planetary reducer 42 to work, the planetary reducer 42 converts the high-speed rotation of the servo motor 41 into a low-speed high-torque output, the eccentric wheel 421 rotates, and the bearing 4211 on the eccentric wheel 421 can be attached to the inner wall of the circular rectangular groove 321 to roll, so that the eccentric wheel 421 can drive the first sliding block 32 to slide up and down along the first guide rail 31, so that the connecting rod 33 drives the movable crimping part 22 to move up and down, and the movable crimping part 22 cooperates with the fixed crimping part 23 to realize the terminal crimping work. In this process, the crimping height of the terminal is realized by setting the rotation angle of the servo motor 41, and by setting the rotation angle of the servo motor 41, the rotation angle of the eccentric wheel 421 can be accurately controlled, so that the terminal crimping height can be accurately adjusted, and the variable-diameter hexagonal crimping die 2 can correspondingly change the caliber of the hexagonal crimping port 5 according to the terminal specification, and can adapt to terminals of various specifications.

[0024] As Figure 5 shown, in some embodiments of the utility model, the die changing free servo crimping device further includes a guide mechanism 6, the guide mechanism 6 is arranged on the front side of the variable-diameter hexagonal crimping die 2, a plurality of pairs of guide blocks 7 are arranged on the guide mechanism 6, and the guide blocks 7 are used to guide the wires of different sizes to pass through to reach the variable-diameter hexagonal crimping die 2.

[0025] Optionally, the guide mechanism 6 includes two oppositely arranged mounting seats 61, a cylinder 62 is arranged on each of the two mounting seats 61, a guide plate 63 is connected to the output end of the cylinder 62, the guide block 7 is installed on the guide plate 63, and the guide plates 63 on the two sides are driven to split by the cylinder 62 to form a guide hole 71 for the wire of different sizes to pass through.

[0026] As Figure 5 shown, in some embodiments of the utility model, the die changing free servo crimping device further includes an adjusting mechanism 8 for switching different guide blocks 7, the adjusting mechanism 8 includes a second guide rail 81, a rack 82 and an adjusting motor, the second guide rail 81 is vertically installed at the lower part of the rack 1, the rack 82 is parallel to the second guide rail 81, the adjusting motor (not shown in the figure) is in transmission connection with the rack 82, and the guide mechanism 6 is installed on the sliding block of the second guide rail 81 and is fixedly connected with the rack 82. The guide mechanism 6 is driven to move up and down along the second guide rail 81 by the adjusting motor, so that the corresponding guide block 7 is moved to the front side of the hexagonal crimping port 5 according to the size of the wire.

[0027] As Figure 6As shown, in some embodiments of the utility model, the die base 9 is arranged below the variable diameter hexagonal compression die 2, the die base 9 includes the bottom plate 91 and the top block 92, the bottom plate 91 is installed at the lower part of the rack 1, one end of the top block 92 is slidably connected with the bottom plate 91, the other end is threadedly connected with the adjusting nut 921, one end of the adjusting nut 921 is connected with the adjusting wrench 922, the other end side wall is provided with the lug 923, one end of the bottom plate 91 away from the top block 92 is provided with the limit block 911, the bottom plate 91 below the adjusting nut 921 is provided with the stop block 912, the stop block 912 is matched with the lug 923 and is used for locking the top block 92, the base 21 of the variable diameter hexagonal compression die 2 is arranged between the top block 92 and the limit block 911, the base 21 is locked by the top block 92 and the limit block 911, the lug 923 is separated from the stop block 912 by rotating the adjusting wrench 922, the locking of the top block 92 is released, and the base 21 is unlocked by sliding the top block 92 outward.

[0028] It should be understood that all the above embodiments are exemplary but not restrictive, any modification, equivalent change and modification made by the skilled in the art to the above described specific embodiments under the concept of the utility model still belong to the range of the technical scheme of the utility model.

Claims

1. A dieless servo crimping device, comprising: Include: Frame, the upper part of the frame is fixed with a vertical plate; Variable diameter hexagonal compression die, the variable diameter hexagonal compression die is provided in the lower part of the frame; Lifting mechanism, the lifting mechanism includes a first guide rail, a first sliding block and a connecting rod, the first guide rail is vertically installed on the front side of the vertical plate, the first sliding block is slidably connected with the first guide rail on both sides, and the back of the first sliding block is provided with a rounded rectangular groove, the upper end of the connecting rod is connected with the first sliding block, and the lower end of the connecting rod is connected with the variable diameter hexagonal compression die; Drive device, the drive device includes a servo motor and a planetary reducer, the planetary reducer is installed on the back of the vertical plate, the output shaft of the planetary reducer penetrates through the vertical plate and is provided with an eccentric wheel at the penetrating end, the eccentric wheel is provided with a bearing, the bearing is in close contact with the inner side wall of the rounded rectangular groove to form a rolling fit, and the output shaft of the servo motor is in transmission connection with the planetary reducer.

2. The servo crimping device of claim 1, wherein: The variable diameter hexagonal compression die includes a base, a movable compression part and a fixed compression part, the movable compression part is slidably connected to the base, the movable compression part is connected with the lower end of the connecting rod, the fixed compression part is fixedly connected to the base and located below the movable compression part, opposite sides of the movable compression part and the fixed compression part are provided with compression surfaces, and two compression surfaces are abutted and spliced to form a variable diameter hexagonal compression interface.

3. The servo crimping device of claim 1, wherein: Further including a guide mechanism, the guide mechanism is provided on the front side of the variable diameter hexagonal compression die, and a plurality of pairs of guide blocks for different sizes of wires to pass through to reach the variable diameter hexagonal compression die are provided on the guide mechanism.

4. The dieless servo crimping device of claim 3, wherein: Further including an adjusting mechanism for switching different guide blocks, the adjusting mechanism includes a second guide rail, a rack and an adjusting motor, the second guide rail is vertically installed on the lower part of the frame, the rack is parallel to the second guide rail, and the adjusting motor is in transmission connection with the rack; the guide mechanism is installed on the sliding block of the second guide rail and is fixedly connected with the rack, and the guide mechanism is driven by the adjusting motor to move up and down along the second guide rail.

5. The dieless servo crimping device of claim 4, wherein: The guide mechanism includes two oppositely arranged mounting seats, a cylinder is arranged on each of the two mounting seats, a guide plate is connected to the output end of each cylinder, the guide block is installed on the guide plate, and the guide plates on both sides are driven by the cylinders to spliced to form a plurality of pairs of guide blocks to form a guide hole for different wires to pass through.

6. The dieless servo crimping device of claim 2, wherein: Further including a die base, the die base is provided below the variable diameter hexagonal compression die, the die base includes a bottom plate and a top block, the bottom plate is installed on the lower part of the frame, one end of the top block is slidably connected with the bottom plate, the other end is threadedly connected with an adjusting nut, one end of the adjusting nut is connected with an adjusting wrench, the other end side wall is provided with a protrusion, a limiting block is arranged on the bottom plate away from the one end of the top block, a stop block is arranged below the adjusting nut on the bottom plate, and the stop block is matched with the protrusion to lock the top block; the base is connected between the top block and the limiting block.

Images