A tail fin mechanism for wire harness

Abstract

This utility model belongs to the field of wire harness welding technology, specifically providing a tail fin pressing mechanism for wire harnesses. It includes a base, a lower pressing die and a fixing frame mounted on the base, and a hydraulic cylinder mounted on the fixing frame. The extension end of the hydraulic cylinder is mounted with a pressing die via a fixing component. The pressing die is located above the lower pressing die, and a protrusion is mounted on the pressing die. The thickness of the protrusion is equal to the thickness of the tail fin. The protrusion is located above the cable and is offset from the contact area between the protrusion and the tail fin and the pressing die. A pressure switch is mounted on the protrusion, and the pressure switch is connected to the hydraulic cylinder via a control circuit. When the pressure value of the pressure switch reaches a set value, the control circuit is disconnected, and the hydraulic cylinder stops working. This utility model, through the protrusion, pressure switch, control circuit, and the equal thickness of the pressing block and the tail fin, can prevent weak crimping or excessive pressure exceeding the cable's load-bearing capacity during the crimping process, ensuring connection strength while protecting the cable structure from damage.

Description

Technical Field

[0001] This utility model relates to the field of wire harness welding technology, and specifically to a tail fin mechanism for wire harnesses. Background Technology

[0002] Traditional tail fin pressing mechanisms typically crimp the cable to the tail fin by controlling the movement of the pressing block, as illustrated in the tail fin crimping welding positioning fixture disclosed in utility model patent CN222679876U. However, in actual mass production, the dimensions of the tail fin and the cable will inevitably deviate to some extent, and it is also impossible to guarantee that their positions will be completely consistent during installation. If the crimping is performed according to the set pressing stroke, problems such as insecure crimping or damage to the cable may occur. Utility Model Content

[0003] To address the technical problems in the prior art, this utility model provides a tail fin pressing mechanism for a wire harness, including a base, a lower pressing mold and a fixing frame mounted on the base, a hydraulic cylinder mounted on the fixing frame, a fixing component fixedly mounted on the telescopic end of the hydraulic cylinder, a pressing mold mounted on the bottom of the fixing component, the pressing mold being located above the lower pressing mold, and a pressing space for placing a tail fin component being formed between the two, the pressing mold moving closer to or away from the lower pressing mold under the drive of the hydraulic cylinder, a protrusion matching its shape mounted on the bottom end of the pressing mold facing the lower pressing mold, the thickness of the protrusion being equal to the thickness of the tail fin component, the protrusion being located above the cable and offset from the contact part of the tail fin component and the pressing mold, a pressure switch mounted on the protrusion, and the pressure switch being connected to the hydraulic cylinder through a control circuit, the pressure switch abutting against the cable under the drive of the hydraulic cylinder, when the pressure value of the pressure switch reaches a set value, the control circuit is disconnected, and the hydraulic cylinder does not work.

[0004] Furthermore, a pressure display gauge is installed on the mounting bracket. The pressure display gauge is connected to the pressure switch via a connection circuit. The pressure display gauge is used to monitor the real-time pressure value between the pressure switch and the cable.

[0005] Furthermore, the pressure display gauge is also connected to the hydraulic cylinder via a connection circuit, and the pressure display gauge is used to monitor the real-time output pressure value of the hydraulic cylinder.

[0006] Furthermore, two guide rods are slidably mounted on the fixing frame. The two guide rods are symmetrically arranged on both sides of the hydraulic cylinder. The bottom end of the guide rod is fixedly connected to the top of the fixing assembly, and the top end extends out of the fixing frame.

[0007] Furthermore, a limiting nut is installed on the guide rod, and the limiting nut is threadedly connected to one end of the guide rod extending out of the fixing frame. When the limiting nut contacts the fixing frame, the mold is fixed relative to the fixing frame.

[0008] Furthermore, a booster pump is also installed on the base, and the booster pump is connected to the hydraulic cylinder.

[0009] Beneficial effects:

[0010] 1. In this utility model, by using protrusions, pressure switches, control circuits, and ensuring that the thickness of the pressure block and the tail wing is equal, it is possible to prevent the tail wing from being loosely crimped or the pressure exceeding the cable's bearing capacity during the crimping process. This ensures connection strength while protecting the cable structure from damage. Specifically, the cable and the terminal with the tail wing are first fixed using a corresponding positioning and clamping mechanism to ensure that the tail wing is located within the crimping space formed by the pressure mold and the lower pressure mold. Then, based on the cable parameters and previous experimental data, the optimal pressure value between the cable and the tail wing is determined. When the optimal pressure value is reached, the cable and the tail wing can ensure a firm connection, while the cable... The internal structure of the cable will not be damaged by compression. This optimal pressure value is the set value of the pressure switch. This set value can be a fixed value or a range value. Then, the hydraulic cylinder is activated to press the tail fin using the pressing die and the lower pressing die. During this process, the pressing die will first bend the bent section of the tail fin to form an arc structure that wraps around the cable. As the hydraulic cylinder continues to move, the arc structure will contact the cable and exert pressure on it. Since the thickness of the protrusion is equal to the thickness of the tail fin, the pressure switch will also contact the cable and exert pressure. As the hydraulic cylinder continues to move, the pressure will continue to increase until it reaches the set value of the pressure switch. At this time, the control circuit is disconnected and the hydraulic cylinder is forcibly stopped.

[0011] 2. In this utility model, the pressure display gauge, connected to the pressure switch via a connecting circuit, can display the pressure value of the pressure switch in real time. The pressure value can be used to roughly determine the progress of the crimping process. Furthermore, by observing the correlation between the pressure values ​​and time for different tail fin components, the dimensional deviation of the tail fin components can be preliminarily determined, allowing for the rapid screening of defective products. Combined with the connection between the pressure display gauge and the hydraulic cylinder via the connecting circuit, the output pressure value of the hydraulic cylinder can be monitored in real time. Comparing the output pressure value with the pressure value of the pressure switch can roughly determine the energy loss. Additionally, the energy loss of different tail fin components can be used to determine if the equipment is malfunctioning.

[0012] 3. In this utility model, the setting of two guide rods can improve the stability of the hydraulic cylinder and ensure that the die moves linearly up and down; combined with the setting of the limit nut, the extension and retraction stroke of the hydraulic cylinder can be adjusted, and the cable structure is further protected from damage by hard limit.

[0013] 4. In this utility model, by setting up a booster pump, the maximum output pressure value of the hydraulic cylinder can be increased, and the output pressure value can be steplessly adjusted to meet the crimping requirements of tail wing parts made of different materials. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall installation structure of this utility model.

[0016] Explanation of reference numerals in the attached figures:

[0017] 1. Lower pressing mold; 2. Fixing frame; 3. Hydraulic cylinder; 4. Fixing assembly; 5. Pressing mold; 6. Tail wing; 7. Pressure display gauge; 8. Guide rod; 9. Limit nut; 10. Booster pump. Detailed Implementation

[0018] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0019] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0021] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0022] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0023] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0024] This utility model provides a tail fin pressure mechanism for wire harnesses, such as... Figure 1As shown, the device includes a base on which a lower pressing mold 1 and a fixing frame 2 are mounted. A hydraulic cylinder 3 is mounted on the fixing frame 2. A fixing component 4 is fixedly mounted on the telescopic end of the hydraulic cylinder 3. A pressing mold 5 is mounted on the bottom of the fixing component 4. The pressing mold 5 is located above the lower pressing mold 1, and a pressing space for placing a tail fin 6 is formed between the two. Both the pressing mold 5 and the lower pressing mold 1 are provided with arc-shaped grooves for pressing the tail fin 6 onto a cable. The pressing mold 5 moves closer to or further away from the lower pressing mold 1 under the action of the hydraulic cylinder 3. The pressing mold 5 faces downwards. A protrusion matching its shape is installed on the bottom end of the mold 1. The thickness of the protrusion is equal to the thickness of the tail wing 6. The protrusion is located above the cable and is offset from the contact area between the tail wing 6 and the mold 5. A pressure switch is installed on the protrusion, and the pressure switch is connected to the hydraulic cylinder 3 through a control circuit. Specifically, the control circuit can be connected to the power supply circuit of the hydraulic cylinder 3. The pressure switch abuts against the cable under the action of the hydraulic cylinder 3. When the pressure value of the pressure switch reaches the set value, the control circuit is disconnected and the hydraulic cylinder 3 stops working.

[0025] In this embodiment, by using the protrusion, pressure switch, control circuit, and setting the thickness of the pressure block and tail wing 6 to be equal, it is possible to avoid the phenomenon of weak crimping or the pressure exceeding the cable's bearing capacity during the crimping process. This ensures connection strength while protecting the cable structure from damage. Specifically, the cable and the terminal with the tail wing 6 are first fixed by the corresponding positioning and clamping mechanism to ensure that the tail wing 6 is located within the crimping space formed by the pressure mold 5 and the lower pressure mold 1. Then, the optimal pressure value between the cable and the tail wing 6 is determined based on the cable parameters and previous experimental data. When the optimal pressure value is reached, the cable and the tail wing 6 can be securely connected, while the internal structure of the cable will not be damaged. Damage caused by compression; this optimal pressure value is the set value of the pressure switch. This set value can be a fixed value or a range value. Then, the hydraulic cylinder 3 is activated to press the tail fin 6 using the pressing mold 5 and the lower pressing mold 1. During this process, the pressing mold 5 will first bend the bent section of the tail fin 6 to form an arc-shaped structure that wraps around the cable. As the hydraulic cylinder 3 continues to move, the arc-shaped structure will contact the cable and exert pressure on it. Since the thickness of the protrusion is equal to the thickness of the tail fin 6, the pressure switch will also contact the cable and exert pressure. As the hydraulic cylinder 3 continues to move, the pressure will continue to increase until it reaches the set value of the pressure switch. At this time, the control circuit is disconnected, the power supply to the hydraulic cylinder 3 is cut off, and it is forced to stop working.

[0026] In this utility model, preferably, such as Figure 1As shown, a pressure display gauge 7 is installed on the mounting bracket 2. The pressure display gauge 7 is connected to the pressure switch via a connection circuit. The pressure display gauge 7 is used to monitor the real-time pressure value between the pressure switch and the cable. The pressure display gauge 7 is also connected to the hydraulic cylinder 3 via a connection circuit. The pressure display gauge 7 is used to monitor the real-time output pressure value of the hydraulic cylinder 3.

[0027] In this embodiment, the pressure display 7, connected to the pressure switch via a connecting circuit, can display the pressure value of the pressure switch in real time. The pressure value can be used to roughly determine the progress of the crimping process. Furthermore, by observing the correlation between the pressure values ​​and time for different tail fin parts 6, the dimensional deviation of the tail fin parts 6 can be preliminarily determined, allowing for the rapid screening of defective products. Combined with the connection between the pressure display 7 and the hydraulic cylinder 3 via the connecting circuit, the output pressure value of the hydraulic cylinder 3 can be monitored in real time. Comparing the output pressure value with the pressure value of the pressure switch can roughly determine the energy loss. Additionally, the energy loss of different tail fin parts 6 can be used to determine whether the equipment is malfunctioning.

[0028] In this utility model, preferably, such as Figure 1 As shown, two guide rods 8 are also slidably installed on the fixed frame 2. The two guide rods 8 are symmetrically arranged on both sides of the hydraulic cylinder 3. The bottom end of the guide rod 8 is fixedly connected to the top of the fixed assembly 4, and the top end extends out of the fixed frame 2. A limit nut 9 is installed on the guide rod 8. The limit nut 9 is threadedly connected to one end of the guide rod 8 that extends out of the fixed frame 2. When the limit nut 9 contacts the fixed frame 2, the pressure mold 5 is relatively fixed to the fixed frame 2.

[0029] In this embodiment, the stability of the hydraulic cylinder 3 can be improved by setting two guide rods 8, ensuring that the pressing mold 5 moves linearly up and down; combined with the setting of the limit nut 9, the extension and retraction stroke of the hydraulic cylinder 3 can be adjusted, and the cable structure can be further protected from damage by hard limit. In actual use, the movement stroke of the pressing mold 5 can be combined with pressure monitoring to control the pressing process.

[0030] In this utility model, preferably, such as Figure 1 As shown, a booster pump 10 is also installed on the base, and the booster pump 10 is connected to the hydraulic cylinder 3, wherein the maximum output pressure of the booster pump 10 is 1T.

[0031] In this embodiment, by setting up the booster pump 10, the maximum output pressure value of the hydraulic cylinder 3 can be increased, and the output pressure value can be steplessly adjusted to meet the crimping requirements of tail wing parts 6 made of different materials.

[0032] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0033] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A tail fin pressing mechanism for a wiring harness, comprising a base on which a lower pressing mold (1) and a fixing frame (2) are mounted, a hydraulic cylinder (3) is mounted on the fixing frame (2), a fixing component (4) is fixedly mounted on the telescopic end of the hydraulic cylinder (3), a pressing mold (5) is mounted on the bottom of the fixing component (4), the pressing mold (5) is located above the lower pressing mold (1), and a pressing space for placing a tail fin component (6) is formed between the two, the pressing mold (5) moves closer to or away from the lower pressing mold (1) under the drive of the hydraulic cylinder (3), characterized in that, The bottom end of the mold (5) facing the lower mold (1) is equipped with a protrusion that matches its shape. The thickness of the protrusion is equal to the thickness of the tail wing (6). The protrusion is located above the cable and is offset from the contact part of the tail wing (6) and the mold (5). A pressure switch is installed on the protrusion, and the pressure switch is connected to the hydraulic cylinder (3) through a control circuit. The pressure switch abuts against the cable under the drive of the hydraulic cylinder (3). When the pressure value of the pressure switch reaches the set value, the control circuit is disconnected and the hydraulic cylinder (3) does not work.

2. The tail fin mechanism for a wire harness according to claim 1, characterized in that, A pressure display gauge (7) is installed on the mounting bracket (2). The pressure display gauge (7) is connected to the pressure switch via a connection circuit. The pressure display gauge (7) is used to monitor the real-time pressure value between the pressure switch and the cable.

3. A pinch tail mechanism for a wiring harness as defined in claim 2, wherein, The pressure display (7) is also connected to the hydraulic cylinder (3) via a connection circuit. The pressure display (7) is used to monitor the real-time output pressure value of the hydraulic cylinder (3).

4. A tail compression wing mechanism for a wiring harness according to any one of claims 1 to 3, characterized in that Two guide rods (8) are also slidably installed on the fixed frame (2). The two guide rods (8) are symmetrically arranged on both sides of the hydraulic cylinder (3). The bottom end of the guide rod (8) is fixedly connected to the top of the fixed component (4), and the top end extends out of the fixed frame (2).

5. A pinch tail mechanism for a wiring harness as defined in claim 4, wherein, A limiting nut (9) is installed on the guide rod (8). The limiting nut (9) is threaded to one end of the guide rod (8) that extends out of the fixing frame (2). When the limiting nut (9) contacts the fixing frame (2), the mold (5) is fixed relative to the fixing frame (2).

6. A tail compression wing mechanism for a wiring harness as defined in claim 1, wherein, A booster pump (10) is also installed on the base, and the booster pump (10) is connected to the hydraulic cylinder (3).

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