A harness production cutting device for an engineering machine vehicle body

Abstract

The utility model discloses an engineering machinery vehicle body wire harness production cutting device relates to cutting device technical field, include: frame, its top is equipped with the wire slot of extending along length direction, gantry, is fixed in the frame top and is across the wire slot setting, cutting knife, install in the gantry below and with the wire slot intersection liftably, the protection subassembly that sets up in pairs, symmetrical arrangement is in the both sides of cutting knife along the wire slot direction, and every protection subassembly includes: the protection cylinder, and the inner chamber forms the exhaust cavity of variable volume, piston, the axial sliding installation in the protection cylinder and located exhaust cavity bottom, and its bottom end is connected with the piston rod that extends to the protection cylinder outside, elastic reset piece, connect between the protection cylinder top and piston, the utility model cutting knife drops, and the pressing plate first contacts wire harness and presses tightly in the wire slot, prevents wire harness from happening displacement in the cutting process, guarantees the accuracy and quality of cutting.

Description

Technical Field

[0001] This utility model relates to the field of cutting device technology, specifically a cutting device for manufacturing wiring harnesses for engineering machinery bodies. Background Technology

[0002] In the field of construction machinery manufacturing, the vehicle body wiring harness is a key component connecting various electrical parts, and its production quality directly affects the electrical performance and stability of the equipment. Among these processes, wiring harness cutting is a crucial step in the production process.

[0003] Currently, traditional wire harness cutting devices mostly employ simple mechanical cutting methods, relying solely on the up-and-down movement of a cutter to cut the wire harness. This method has many drawbacks. During the cutting process, due to the lack of an effective positioning and clamping structure, the wire harness is prone to displacement, making it difficult to guarantee cutting accuracy. This not only affects subsequent processing and assembly of the wire harness but may also cause the wire harness to be scrapped due to dimensional deviations, increasing production costs. Furthermore, the cutting process generates a large amount of debris, and existing devices often lack the function of timely debris removal. This debris remains in the working area, not only contaminating the working environment but also potentially entering the wire harness or adhering to the surface of the cutting cutter, affecting the electrical performance of subsequent wire harnesses and the lifespan of the cutter, and even causing equipment failure. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a cutting device for the production of wiring harnesses for engineering machinery bodies.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A cutting device for manufacturing wiring harnesses for engineering machinery bodies, comprising:

[0007] The frame has a wire groove extending along its length on its top;

[0008] A gantry frame is fixed to the top of the frame and spans the cable tray.

[0009] The cutting blade is mounted in a height-adjustable manner below the gantry and intersects with the wire trough;

[0010] Pairs of protective components are symmetrically arranged on both sides of the cutting blade along the groove direction. Each protective component includes:

[0011] The protective cylinder has an inner cavity that forms a variable-volume exhaust chamber;

[0012] The piston is axially slidably mounted inside the protective cylinder and located at the bottom of the exhaust chamber, with a piston rod extending out of the protective cylinder connected to its bottom end;

[0013] An elastic reset element is connected between the top of the protective cylinder and the piston;

[0014] The pressure plate is fixedly connected to the end of the piston rod and located below the cutting blade. When the cutting blade descends, it drives the pressure plate to contact the wire harness first to form a clamping effect.

[0015] The nozzle is located on the side of the pressure plate facing the cutting blade and is connected to the exhaust chamber. As the cutting blade continues to descend, it drives the piston to compress the exhaust chamber and generate directional airflow through the nozzle.

[0016] Preferably, the axis of the nozzle forms an angle of 15-75° with the extension direction of the groove.

[0017] Preferably, the axis of the nozzle forms a 30° angle with the extension direction of the groove.

[0018] Preferably, the nozzles on both sides of the cutting blade are arranged in an alternating pattern to form an alternating opposing airflow channel.

[0019] Preferably, the gantry is equipped with a hydraulic cylinder that drives the cutting blade.

[0020] Preferably, the elastic reset element is a cylindrical helical spring, the natural length of which is greater than 2 / 3 of the height of the protective cylinder.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] 1. Ensure cutting quality: When the cutting blade descends, the pressure plate first contacts the wire harness and presses it firmly into the wire groove to prevent the wire harness from shifting during the cutting process, thus ensuring the accuracy and quality of the cutting.

[0023] 2. Timely cleaning of debris: The cutting blade drives the piston to compress the exhaust chamber. The gas generates a directional airflow through the nozzles that are arranged at a certain angle to the extension direction of the wire groove and are staggered. This forms an interlaced airflow channel, which can promptly blow away the wire bundle debris generated before and during the cutting process, keep the working area clean, and prevent debris from affecting subsequent production operations. Attached Figure Description

[0024] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0025] Figure 1 This is a three-dimensional structural schematic diagram of the cutting device for producing wiring harnesses for engineering machinery bodies according to this utility model.

[0026] Figure 2 This is a second-view three-dimensional structural schematic diagram of the cutting device for producing wiring harnesses for engineering machinery bodies according to this utility model.

[0027] Figure 3This is a cross-sectional view of the cutting device for manufacturing wiring harnesses for engineering machinery bodies, as described in this utility model.

[0028] Figure 4 This utility model relates to a cutting device for manufacturing wiring harnesses for engineering machinery bodies. Figure 3 A schematic diagram of the structure of A in the middle.

[0029] The diagram is labeled as follows: 1. Frame; 2. Cable tray; 3. Cutting blade; 31. Protective cylinder; 32. Piston; 33. Elastic reset component; 34. Pressure plate; 35. Spray nozzle. Detailed Implementation

[0030] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0031] Example

[0032] like Figure 1-4 As shown, a cutting device for manufacturing wiring harnesses for engineering machinery bodies includes:

[0033] Frame 1: Frame 1 provides a stable support structure for the entire device, and its top is provided with a wire groove 2 extending along the length direction. The wire groove 2 is used to place the wire bundle to be cut, providing guidance and positioning functions for the wire bundle, ensuring that the wire bundle remains in a straight state during the cutting process, and improving cutting accuracy.

[0034] Gantry frame: Fixedly installed on the top of the frame 1 and spanning the cable tray 2, providing a support frame for the installation and movement of the cutting blade 3.

[0035] Cutting blade 3: It is mounted vertically below the gantry and intersects with the wire trough 2. It is driven to move up and down by a hydraulic cylinder mounted on the gantry. The hydraulic cylinder provides stable and controllable power, enabling the cutting blade 3 to quickly and accurately complete the wire harness cutting action.

[0036] Protective components: Pairs of protective components are symmetrically arranged on both sides of the cutting blade 3 along the direction of the groove 2. Each protective component includes the following parts:

[0037] Protective cylinder 31: Its inner cavity forms a variable volume exhaust chamber, which is a key component for generating directional airflow.

[0038] Piston 32: It is axially slidably mounted inside the protective cylinder 31 and located at the bottom of the exhaust chamber. Its bottom end is connected to a piston rod extending outside the protective cylinder 31. Driven by the downward movement of the cutting blade 3, the piston 32 slides inside the protective cylinder 31, thereby changing the volume of the exhaust chamber.

[0039] Elastic reset element 33: A cylindrical helical spring is used to connect the top of the protective cylinder 31 and the piston 32. The natural length of the elastic reset element 33 is greater than 2 / 3 of the height of the protective cylinder 31, which can provide a reliable reset force for the piston 32, ensuring that the piston 32 quickly returns to the initial position after completing one action, and is ready for the next cut-off.

[0040] Pressure plate 34: Fixedly connected to the end of the piston rod and located below the cutting blade 3. When the cutting blade 3 descends, the pressure plate 34 first contacts the wire harness and forms a clamping force to prevent displacement of the wire harness during the cutting process and ensure the cutting quality.

[0041] Nozzle 35: Located on the side of the pressure plate 34 facing the cutting blade 3 and connected to the exhaust chamber. As the cutting blade 3 continues to descend, it drives the piston 32 to compress the exhaust chamber, and the gas passes through the nozzle 35 to generate a directional airflow. The axis of the nozzle 35 forms an angle of 15-75° with the extension direction of the wire groove 2, preferably 30°. Simultaneously, the nozzles 35 on both sides of the cutting blade 3 are staggered to form staggered opposing airflow channels. The directional airflow can promptly blow away wire bundle debris generated before and during cutting, keeping the working area clean and preventing debris from affecting subsequent production operations.

[0042] When using the wire harness cutting device for manufacturing engineering machinery body wire harnesses, the wire harness to be cut is first placed in the wire groove 2 at the top of the frame 1. The wire groove 2 extends along the length of the frame, and its structural design provides guidance and positioning for the wire harness, ensuring that the wire harness remains in a straight line throughout the cutting process, laying the foundation for subsequent precise cutting.

[0043] When a cutting operation is required, the hydraulic cylinder mounted on the gantry starts working, driving the cutting blade 3, which is installed below the gantry and intersects with the wire groove 2, to move downwards. During the descent of the cutting blade 3, the pressure plate 34 (fixed to the end of the piston rod and located below the cutting blade 3) linked to the cutting blade 3 first contacts the wire harness. At this time, the pressure plate 34 presses the wire harness tightly into the wire groove 2, preventing the wire harness from shifting due to cutting force during the subsequent cutting process, thus ensuring the accuracy and quality of the cut.

[0044] As the cutting blade 3 continues to descend, the piston rod connected to the pressure plate 34 drives the piston 32 to slide axially within the protective cylinder 31. The inner cavity of the protective cylinder 31 forms a variable-volume exhaust chamber, and the sliding of the piston 32 causes the volume of the exhaust chamber to gradually decrease. Because the elastic reset member 33 (which is a cylindrical helical spring connected between the top of the protective cylinder 31 and the piston 32, and whose natural length is greater than 2 / 3 of the height of the protective cylinder 31) is compressed when the piston 32 moves down, it accumulates elastic potential energy.

[0045] When the exhaust chamber is compressed, the gas inside is discharged through nozzles 35 located on the pressure plate 34 facing the side of the cutting blade 3 and communicating with the exhaust chamber. The axis of the nozzles 35 forms an angle of 15-75° (preferably 30°) with the extension direction of the wire groove 2, and the nozzles 35 on both sides of the cutting blade 3 are staggered, thus forming staggered opposing air ducts. These directional airflows will promptly blow away the wire bundle debris generated when the cutting blade 3 is about to contact the wire bundle and during the cutting process, preventing debris from accumulating in the working area, affecting subsequent production operations, and maintaining a clean working environment.

[0046] Finally, driven by the hydraulic cylinder, the cutting blade 3 quickly and accurately completes the wire harness cutting action with stable and controllable power. After the cutting is completed, the hydraulic cylinder drives the cutting blade 3 to rise and reset. At this time, the compressed elastic reset member 33 releases its elastic potential energy, providing a reset force for the piston 32, causing the piston 32 to quickly return to its initial position, driving the pressure plate 34 to disengage from the wire harness. The entire device returns to its initial state, ready for the next wire harness cutting.

[0047] Improved cutting accuracy: The wire groove 2 at the top of the frame 1 provides guidance and positioning for the wire harness, ensuring that the wire harness remains straight during the cutting process, laying the foundation for precise cutting.

[0048] To ensure cutting quality: When the cutting blade 3 descends, the pressure plate 34 first contacts the wire harness and presses it firmly into the wire groove 2 to prevent the wire harness from shifting during the cutting process, thus ensuring the accuracy and quality of the cutting.

[0049] Timely cleaning of debris: The cutting blade 3 drives the piston 32 to compress the exhaust chamber. The gas generates directional airflow through the nozzles 35 arranged at a certain angle to the extension direction of the wire groove 2, forming an interlaced airflow channel. This can promptly blow away the wire bundle debris generated before and during the cutting process, keeping the working area clean and preventing debris from affecting subsequent production operations.

[0050] Achieving reliable reset: The elastic reset element 33 adopts a cylindrical helical spring with a natural length greater than 2 / 3 of the height of the protective cylinder 31, which can provide reliable reset force for the piston 32, ensuring that the piston 32 quickly returns to the initial position after completing one action, and is ready for the next cut-off.

[0051] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A cutting device for manufacturing wiring harnesses for engineering machinery bodies, characterized in that: include: The frame (1) has a wire groove (2) extending along its length on its top; A gantry frame is fixed to the top of the frame (1) and spans the cable tray (2); The cutting blade (3) is installed below the gantry frame in a height-adjustable manner and intersects with the wire trough (2); Pairs of protective components are symmetrically arranged on both sides of the cutting blade (3) along the direction of the groove (2), and each protective component includes: The protective cylinder (31) has an inner cavity that forms a variable-volume exhaust chamber; The piston (32) is axially slidably installed inside the protective cylinder (31) and located at the bottom of the exhaust chamber, with a piston rod extending to the outside of the protective cylinder (31) connected to its bottom end; An elastic reset element (33) is connected between the top of the protective cylinder (31) and the piston (32); The pressure plate (34) is fixedly connected to the end of the piston rod and located below the cutting blade (3). When the cutting blade (3) descends, it drives the pressure plate (34) to contact the wire harness first to form a clamping effect. The nozzle (35) is located on the side of the pressure plate (34) facing the cutter (3) and communicates with the exhaust chamber. The cutter (3) continues to descend, driving the piston (32) to compress the exhaust chamber and generate directional airflow through the nozzle (35).

2. The cutting device for manufacturing wiring harnesses for engineering machinery bodies according to claim 1, characterized in that: The axis of the nozzle (35) forms an angle of 15-75° with the extension direction of the groove (2).

3. The cutting device for manufacturing wiring harnesses for engineering machinery bodies according to claim 2, characterized in that: The axis of the nozzle (35) forms a 30° angle with the extension direction of the groove (2).

4. The cutting device for manufacturing wiring harnesses for engineering machinery bodies according to claim 3, characterized in that: The nozzles (35) on both sides of the cutting blade (3) are arranged in an alternating pattern to form an alternating opposing airflow channel.

5. The cutting device for manufacturing wiring harnesses for engineering machinery bodies according to claim 4, characterized in that: The gantry is equipped with a hydraulic cylinder that drives the cutting blade (3).

6. The cutting device for manufacturing wiring harnesses for engineering machinery bodies according to claim 5, characterized in that: The elastic reset element (33) is a cylindrical helical spring, and its natural length is greater than 2 / 3 of the height of the protective cylinder (31).

Images