Cutter device capable of automatically adjusting constant-pressure cutting depth

Abstract

The utility model relates to the field of wire harness processing equipment, in particular to a constant-pressure cutting depth automatic adjusting cutter device which comprises an equipment carrying table, a cutter component and an air pressure adjusting component. The cutter component and the air pressure adjusting component are both independently installed on the equipment carrying table, and the equipment carrying table drives the cutter component to do rotary motion or horizontal motion. The air pressure adjusting component provides compressed air for a driving air cylinder of the cutter component. The cutter component comprises an adapter plate I, the adapter plate I is connected with the equipment carrying table, a driving air cylinder is arranged on the adapter plate I, and the driving air cylinder is in driving connection with a cutter; the cutting mode that the cutting depth of the cutting tool is automatically and steplessly adjusted is achieved through the constant pressure applied to the blade; the cutter can stretch out or retract according to the counter-acting force applied by a cut object; the problems of non-removal layer damage and inconsistent notches caused by non-uniform thickness and material distribution in the processing process of multi-layer and composite material cables are solved, and meanwhile, the processing applicability of the type of cables is expanded and the debugging difficulty is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of wire harness processing equipment, and in particular to a cutter device with constant pressure cutting and automatic adjustment of cutting depth. Background Art

[0002] In order to meet the needs of various industries and working conditions, the new energy industry mostly uses multi-layer and composite materials for cables. When connecting cables and various types of connectors, higher requirements are constantly put forward for the processing quality of cables, and the non-removable layers are required to be free of damage during the removal of the cable removal layer. There are two processing methods for multi-layer and composite cable processing in the market: constant cutting depth and floating cutting depth when cutting the removal layer.

[0003] The existing constant cutting depth processing method mostly uses servo motor or stepper motor drive to accurately control the blade feed amount, that is, the same specification cable uses the same cutting depth, so as to control the cutting depth to avoid damaging the non-removable layer. This processing method can accurately control the cutting depth of the cutter, but due to the thickness and material distribution differences of multi-layer and multi-material composite cables, the constant cutting depth processing method cannot completely guarantee that the non-removable layer is not damaged, and it is difficult to ensure the consistency of the incision quality. The existing floating cutting depth cutting method mostly installs a spring between the blade and the drive part, relying on the spring force to overcome the uneven material and thickness when cutting multi-layer composite cables. This processing method cannot adjust the spring compression force steplessly, making it difficult to debug and change the model, and the equipment is not universal. Therefore, the market urgently needs a cutter device that can independently and quickly adjust the cutting depth in multiple stages according to the differences in the characteristics of different material layers of multi-layer composite cables. Utility Model Content

[0004] The present application provides a cutting device with automatic adjustment of cutting depth under constant pressure, which realizes a cutting method in which the cutting depth of the cutting tool is autonomously and steplessly adjusted by utilizing a constant pressure applied to the blade; that is, when cutting a cable, the cutting blade can extend or retract according to the reaction force applied by the object being cut; this solves the problem of non-removal layer damage and inconsistent incisions caused by uneven thickness and material distribution during the processing of multi-layer and composite material cables, while expanding the applicability of such cable processing and reducing the difficulty of debugging.

[0005] The present application provides a multi-layer composite cable lossless cutting device and cutting method using the following technical solutions:

[0006] A cutter device with constant pressure cutting and automatic cutting depth adjustment, comprising a device carrier, a cutter component and an air pressure adjustment component;

[0007] The cutter component and the air pressure regulating component are independently mounted on the equipment carrier, and the equipment carrier drives the cutter component to perform rotational motion or horizontal motion;

[0008] The air pressure regulating component provides compressed air to the driving cylinder of the cutter component;

[0009] The cutter component comprises an adapter plate 1, which is connected to the equipment carrier. A driving cylinder is arranged on the adapter plate 1, and the driving cylinder drives the cutter.

[0010] Preferably, the mounting groove of the adapter plate one is provided with an adapter plate two, and pin holes are opened on both the adapter plate one and the adapter plate two, and latches are inserted in the pin holes. The latches pass through the pin holes of the adapter plate one and the adapter plate two to connect the adapter plate one and the adapter plate two.

[0011] Preferably, a guide rail mounting plate is installed on the adapter plate 2, and the guide rail mounting plate is arranged parallel to the adapter plate 2. A guide rail is connected to one side of the guide rail mounting plate, and a driving cylinder is connected to the other side of the guide rail mounting plate near the top, and two air joints are provided on the driving cylinder. A cutter mounting plate is slidably provided on the guide rail.

[0012] Preferably, an extension rod is provided in the air supply port of the driving cylinder, the extension rod is connected to a floating joint, the cutter mounting plate is in an "L"-shaped structure, and a cylinder connecting plate is connected to the side of the cutter mounting plate close to the floating joint, and the cylinder connecting plate is connected to the floating joint.

[0013] Preferably, a cutter rotating shaft is connected to the cutter mounting plate at one side away from the cylinder connecting plate, and a cutter is rotatably provided on the cutter rotating shaft.

[0014] Preferably, the air pressure regulating component is an electrical proportional valve, a bracket is provided at the bottom of the electrical proportional valve, and the bracket is connected to the equipment carrier. One side of the electrical proportional valve is provided with air joint 2, and the other side is provided with air joint 3. The air joint 2 and air joint 3 are connected to the air joint 1 of the driving cylinder (the cylinder rod extends out of the air inlet) of the cutting knife component through the set air pipe.

[0015] Preferably, the cutter component is mounted on a device carrier, and the device carrier drives the cutter part to perform rotational motion or horizontal motion along the axis of the cutter shaft. The air pressure regulating part is fixed on the device carrier and is independent of the cutter part, and compressed air is supplied to the cutter drive cylinder of the cutter component. During the entire movement process, the cutter is perpendicular to the axis of the cutter shaft.

[0016] When cutting a multi-layer composite cable, the driving cylinder transmits the cylinder rod extension pressure to the cutter mounting plate through the cylinder connecting plate, and a cutter is installed on the cutter mounting plate, so that the driving cylinder pressure is transmitted to the cutter, thereby realizing the cable cutting. The compressed air of the driving cylinder is provided by an electric proportional valve, because the supply pressure of the electric proportional valve is steplessly adjustable, and thus the pressure on the cutter can be indirectly adjusted steplessly. When cutting a multi-layer composite cable, due to the difference in hardness of different material layers, when the same pressure is applied to the cutter, the cutting depth of the cutter is not determined by the stroke of the cylinder extension rod, but by the reaction force received by the blade when cutting the cable, that is, if the reaction force is less than the cutter pressure, the blade cuts in, and if the reaction force is greater than the cutter pressure, the blade rebounds; it can be briefly described as the cutting depth of the cutter is determined by the hardness of the cable removal layer, and is not affected by the thickness and roundness of the cable removal layer, thereby eliminating the influence of cable thickness and material unevenness on the cable cutting depth. Because of the electrical proportional valve, the output pressure can be quickly and steplessly adjusted through its own settings or an external display, and the cutter pressure can be quickly and steplessly adjusted, so that the cutting pressure setting for cables of different materials can be quickly realized, further expanding the convenience and applicability of this structure.

[0017] In summary, the present application includes at least one of the following beneficial technical effects:

[0018] It can eliminate the non-cut layer damage or poor incision consistency caused by uneven thickness of different cable material layers or deformation of some areas during the processing of multi-layer composite cables. At the same time, it can quickly set the cutter pressure manually or on the screen according to the material difference of the cable itself, thereby increasing its versatility, expanding its scope of application, and effectively shortening the debugging cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 The utility model is a schematic diagram of the cutter component Figure 1 .

[0021] Figure 3 The utility model is a schematic diagram of the cutter component Figure 2 .

[0022] Figure 4 It is a schematic diagram of the air pressure regulating component of the utility model. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1 —4 Provide further details of this application.

[0024] Reference Figure 1-3A cutter device with constant pressure cutting and automatic adjustment of cutting depth comprises a device carrier, a cutter component 2 and an air pressure regulating component 3; the cutter component 2 and the air pressure regulating component 3 are independently mounted on the device carrier, and the device carrier drives the cutter component 2 to perform rotational motion or horizontal motion; the air pressure regulating component 3 provides compressed air for the driving cylinder 210 of the cutter component 2; the cutter component 2 comprises an adapter plate 1 208, the adapter plate 1 208 is connected to the device carrier, a driving cylinder 210 is arranged on the adapter plate 1 208, and the driving cylinder 210 is drivingly connected to the cutter 204. The adapter plate 1 is an adapter between the cutter part and the device driving part, which is used to realize the connection between the cutter component and the device, and provide power transmission for the cutter component to perform linear motion or rotational motion along a fixed axis. The driving cylinder is the component that supplies the final cutting force of the cutter. Its cylinder rod extends out of the air supply port to supply air through the electrical proportional valve. After the output pressure value is set according to the multi-layer composite cable, when the cutter cuts the wire removal layer, the cutter continues to cut in when cutting the removal layer until it cuts the non-removable layer, that is, the cutting depth of the cutter is floating during the cutting process, and may extend or retract, thereby ensuring that the non-removable layer of the wire is not damaged during the cutting process. The driving cylinder is provided with a magnetic switch 211, which is used to detect the reset of the driving cylinder.

[0025] The installation slot of the adapter plate 1 208 is provided with an adapter plate 213. Pin holes are provided on the adapter plate 1 208 and the adapter plate 2 213. A plug 212 is inserted in the pin hole. The plug 212 passes through the pin holes of the adapter plate 1 208 and the adapter plate 2 213 to connect the adapter plate 1 208 and the adapter plate 2 213. The plug is a connecting piece between the adapter plate 1 and the adapter plate 2. The adapter plate 1 and the adapter plate 2 are limited to some degrees of freedom by the groove and step with tolerance. The remaining two directions of freedom can be further limited by the plug passing through the pin holes on the adapter plate 1 and the adapter plate 2. At the same time, since the plug can be quickly plugged in and out, the components can be quickly assembled and disassembled, which further improves the convenience of maintenance.

[0026] The guide rail mounting plate 201 is mounted on the adapter plate 213, and the guide rail mounting plate 201 is arranged parallel to the adapter plate 213. A guide rail 202 is connected to one side of the guide rail mounting plate 201, and a driving cylinder 210 is connected to the other side of the guide rail mounting plate 201 near the top. The driving cylinder 210 is provided with two gas joints 209; the gas joints 209 are connecting parts between the driving cylinder and the air pipe, and are gas supply parts for the driving cylinder; a cutter mounting plate 203 is slidably mounted on the guide rail 202. The guide rail is an auxiliary moving part of the cutter mounting plate, which is used to ensure the balance of the running track of the cutter mounting plate and the extension path of the driving cylinder rod; ensure its smooth operation and increase the carrying capacity; ensure that the running track of the cutter mounting plate and the cutter mounted thereon is a straight line, and ensure that it will not deflect due to the force during the cutting process, and finally ensure that the cutter cuts the cable evenly and consistently.

[0027] A cylinder rod is provided in the driving cylinder 210, and a floating joint 207 is connected to the cylinder rod. The cutter mounting plate 203 is in an "L" shape. A cylinder connecting plate 206 is connected to the side of the cutter mounting plate 203 close to the floating joint 207, and the cylinder connecting plate 206 is connected to the floating joint 207. The floating joint is a connecting part between the driving cylinder and the cylinder connecting plate, and its own tolerance can reduce the assembly accuracy requirements of the two.

[0028] A cutter shaft 205 is connected to the cutter mounting plate 203 at one side away from the cylinder connecting plate 206, and a cutter 204 is rotatably arranged on the cutter shaft 205. The cutter is a cutting tool with a cutting edge, and the inclination angle at the cutting edge affects its own sharpness. Its service life is improved by heat treatment and surface coating. A circular hole is opened in the center of the blade, and the cutter is fixed to the cutter mounting plate by the cutter shaft. When the cutter is performing linear or rotary cutting motion, it can rotate around the cutter shaft when subjected to force, which further improves the blade life. The cylinder connecting plate is a connecting component between the cutter mounting plate and the floating joint, which is used to realize the connection between the two parts, and indirectly transmit the output force of the driving cylinder to the cutter mounting plate, and then to the cutter through the rotation of the cutter shaft.

[0029] In another embodiment, reference Figure 4 The air pressure regulating component 3 is an electric proportional valve 301. A bracket 305 is provided at the bottom of the electric proportional valve 301, which is connected to the equipment platform through the bracket 305. A gas joint 2 303 is provided on one side of the electric proportional valve 301, and a gas joint 3 304 is provided on the other side. The gas joint 2 303 and the gas joint 3 304 are connected to the gas joint 1 209 in the cutter component 2 through the provided air pipe. The electric proportional valve precisely and steplessly adjusts the pressure of the compressed air supplied by the air source and supplies it to the driving cylinder rod to extend out of the air supply port. A muffler 302 is provided at the exhaust port of the electric proportional valve 301, and the electric proportional valve 301 is provided with an air inlet.

[0030] When cutting a multi-layer composite cable, the driving cylinder transmits the cylinder rod extension pressure to the cutter mounting plate through the cylinder connecting plate, and a cutter is installed on the cutter mounting plate, so that the driving cylinder pressure is transmitted to the cutter, thereby realizing the cable cutting. The compressed air of the driving cylinder is provided by an electric proportional valve, because the supply pressure of the electric proportional valve is steplessly adjustable, and thus the pressure on the cutter can be indirectly adjusted steplessly. When cutting a multi-layer composite cable, due to the difference in hardness of different material layers, when the same pressure is applied to the cutter, the cutting depth of the cutter is not determined by the stroke of the cylinder extension rod, but by the reaction force received by the blade when cutting the cable, that is, if the reaction force is less than the cutter pressure, the blade cuts in, and if the reaction force is greater than the cutter pressure, the blade rebounds; it can be briefly described as the cutting depth of the cutter is determined by the hardness of the cable removal layer, and is not affected by the thickness and roundness of the cable removal layer, thereby eliminating the influence of cable thickness and material unevenness on the cable cutting depth. Because of the electrical proportional valve, the output pressure can be quickly and steplessly adjusted through its own settings or an external display, and the cutter pressure can be quickly and steplessly adjusted, so that the cutting pressure setting for cables of different materials can be quickly realized, further expanding the convenience and applicability of this structure.

[0031] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cutting device with constant pressure cutting and automatic adjustment of cutting depth, characterized in that: It comprises an equipment carrier, a cutting blade component (2) and an air pressure regulating component (3); The cutter component (2) and the air pressure regulating component (3) are both independently mounted on the equipment carrier, and the equipment carrier drives the cutter component (2) to perform rotational motion or horizontal motion; The air pressure regulating component (3) provides compressed air to the driving cylinder (210) of the cutter component (2); The cutter component (2) comprises an adapter plate 1 (208), the adapter plate 1 (208) being connected to the equipment carrier, and a driving cylinder (210) being provided on the adapter plate 1 (208), and the driving cylinder (210) drivingly connects to the cutter (204).

2. A cutter device with constant pressure cutting and automatic cutting depth adjustment according to claim 1, characterized in that: The installation groove of the adapter plate 1 (208) is provided with an adapter plate 2 (213), and pin holes are opened on the adapter plate 1 (208) and the adapter plate 2 (213), and a plug pin (212) is inserted in the pin hole. The plug pin (212) passes through the pin holes of the adapter plate 1 (208) and the adapter plate 2 (213), so as to connect the adapter plate 1 (208) and the adapter plate 2 (213).

3. A cutter device with constant pressure cutting and automatic cutting depth adjustment according to claim 2, characterized in that: A guide rail mounting plate (201) is mounted on the adapter plate (213); one side of the guide rail mounting plate (201) is connected to a guide rail (202); the other side of the guide rail mounting plate (201) is connected to a driving cylinder (210) near the top; the driving cylinder (210) is provided with two air joints (209); and a cutter mounting plate (203) is slidably mounted on the guide rail (202).

4. A cutter device with constant pressure cutting and automatic cutting depth adjustment according to claim 3, characterized in that: A cylinder rod is provided in the air supply port of the driving cylinder (210), and the cylinder rod is connected to a floating joint (207). The cutter mounting plate (203) is in an "L"-shaped structure, and a cylinder connecting plate (206) is connected to a side of the cutter mounting plate (203) close to the floating joint (207), and the cylinder connecting plate (206) is connected to the floating joint (207).

5. A cutter device with constant pressure cutting and automatic cutting depth adjustment according to claim 4, characterized in that: A cutter rotating shaft (205) is connected to the cutter mounting plate (203) at one side away from the cylinder connecting plate (206), and a cutter (204) is rotatably mounted on the cutter rotating shaft (205).

6. A cutter device with constant pressure cutting and automatic cutting depth adjustment according to claim 1, characterized in that: The air pressure regulating component (3) is an electric proportional valve (301). A bracket (305) is provided at the bottom of the electric proportional valve (301). The bracket (305) is connected to the equipment platform. A second air connector (303) is provided on one side of the electric proportional valve (301), and a third air connector (304) is provided on the other side. The second air connector (303) and the third air connector (304) are connected to the first air connector (209) of the cutter component (2) via an air pipe.

7. A cutter device with constant pressure cutting and automatic cutting depth adjustment according to claim 6, characterized in that: A muffler (302) is provided at the exhaust port of the electrical proportional valve (301).

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