Precise numerical control feeding mechanism for spiral groove of resistive film layer

Abstract

This utility model relates to the field of CNC machine tool equipment technology, and discloses a precision CNC feed mechanism for spiral grooving of resistive film layers. It includes a mounting base, a base plate, and a worktable. Two partitions are fixedly connected to the top of the base plate. A vibration damping mechanism and a heat dissipation mechanism are provided on the inner wall of the mounting base. An active mechanism is provided on the outer wall of the two partitions. A driven mechanism is provided at the bottom of the worktable. The vibration damping mechanism includes a motor, the outer wall of which is fixedly connected to the outer wall of the mounting base. A mounting plate is fixedly connected to the outer wall of the mounting base. In this utility model, vibrations at the motor output end are absorbed by pads. When the thrust wave generated by the motor is transmitted, a portion is absorbed by the bottom elastic rubber pad. When transmitted to the vibration wave base plate, the vibration is reduced by the combined action of the vibration damping plate, pressure reducer, and damper, ensuring stable motor operation and thus improving the motion stability and grooving accuracy of the feed mechanism.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool equipment technology, and in particular to a precision CNC feed mechanism for spiral grooving of resistive film layers. Background Technology

[0002] Spiral grooving of resistive film is a micromachining technique used in the manufacturing of carbon film, metal film, or metal oxide film resistors to precisely adjust the resistance value. The core of this technique involves machining an extremely fine, uniformly pitched spiral groove on the conductive film layer on the surface of a cylindrical ceramic substrate using a diamond tool or laser. By extending the current path and reducing the effective conductive cross-sectional area, the resistance value is increased. Precision control is achieved through online resistance monitoring. Spiral grooving on the resistive film layer requires a precision CNC feed mechanism to drive the grooving tool.

[0003] The precision CNC feed mechanism for spiral grooving of the resistive film layer is a core piece of equipment used in resistor production to precisely machine spiral grooves and adjust the resistance value. Essentially, it is a mechatronic device that uses CNC precision control to precisely control the relative movement between the cutting tool and the resistor blank. The mechanism's function is to precisely control the movement of the grooving tool according to CNC instructions, thereby machining spiral grooves of specific shapes and sizes on the resistive film layer. By controlling parameters such as the groove density, the resistance value is precisely controlled. However, in practical applications, motor thrust fluctuations affect feed accuracy. Due to uneven distribution of electromagnetic force in the motor, thrust fluctuations occur during operation, causing vibrations in moving parts, affecting the surface quality of the grooves, and resulting in tiny ripples on the groove surface. Furthermore, the linear motor's heat dissipation is a significant issue; prolonged operation leads to increased motor temperature, affecting its performance and stability, and even causing motor damage. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a precision CNC feed mechanism for spiral grooving of resistive film layers, aiming to improve the problems of motor vibration and heat dissipation in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a precision CNC feeding mechanism for spiral grooving of a resistive film layer, comprising a mounting base, a base plate, and a worktable. Two partitions are fixedly connected to the top of the base plate. A vibration damping mechanism is provided on the inner wall of the mounting base. A heat dissipation mechanism is provided on the inner wall of the mounting base. An active mechanism is provided on the outer wall of the two partitions. A driven mechanism is provided at the bottom of the worktable.

[0006] The vibration damping mechanism includes a motor, the outer wall of which is fixedly connected to the outer wall of a mounting base. A mounting plate is fixedly connected to the outer wall of the mounting base. A gasket is fixedly connected to the right side of the mounting plate. An elastic rubber pad is fixedly connected to the outer wall of the mounting base. Two vibration damping plates are fixedly connected to the left side of each of the two vibration damping plates. A damper is fixedly connected to the left side of each of the two vibration damping plates. A sensor is fixedly connected to the outer wall of the partition on the right side. A mounting assembly is provided on the outer wall of the motor.

[0007] As a further description of the above technical solution:

[0008] The heat dissipation mechanism includes multiple fins, the outer walls of which are fixedly connected to the outer wall of the mounting base. Multiple heat pipes are fixedly connected to the outer wall of the mounting base. Two copper pipes are fixedly connected to the inner wall of the mounting base. Two water inlet pipes are fixedly connected to the top of the mounting base. Two drain pipes are fixedly connected to the right side of the mounting base. An air-cooling assembly is provided at the bottom of the mounting base.

[0009] As a further description of the above technical solution:

[0010] The active mechanism includes a lead screw, the right end of which is fixedly connected to the output end of a motor. The outer walls of both partitions are provided with through slots. The output end of the motor is fixedly connected to a coupling. The outer wall of the lead screw is rotatably connected to two bearings. The top of the base plate is fixedly connected to two guide rails.

[0011] As a further description of the above technical solution:

[0012] The driven mechanism includes two nuts, the outer walls of which are fixedly connected to the bottom of the worktable, and the bottom of the worktable has two sliding grooves.

[0013] As a further description of the above technical solution:

[0014] The mounting assembly includes multiple bolts, the outer walls of which are threaded to the outer wall of the motor, and the outer walls of which are threaded to nuts.

[0015] As a further description of the above technical solution:

[0016] The air-cooled assembly includes a heat transfer plate, the top of which is fixedly connected to the bottom of the mounting base, and the outer wall of the heat transfer plate is provided with multiple heat dissipation ducts.

[0017] As a further description of the above technical solution:

[0018] The top of the workbench is fixedly connected to two fixing plates, and the outer walls of the two fixing plates are fixedly connected to connecting columns.

[0019] As a further description of the above technical solution:

[0020] Both of the fixed plates have the same movable platform fixedly connected to their outer walls, and a cutting tool is fixedly connected to the left end of the movable platform.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the motor is mounted on the mounting plate via a threaded connection. The vibration at the output end is absorbed by the gasket. When the motor generates thrust fluctuations, a portion is absorbed by the bottom elastic rubber pad. When the vibration is transmitted to the vibration wave base plate, the vibration is reduced by the combined action of the damping plate, pressure reducer, and damper, converting kinetic energy into heat energy for dissipation. At the same time, the sensor monitors the motor in real time, increasing the suppression effect on vibration and ensuring the stable operation of the motor, thereby improving the motion stability and grooving accuracy of the feeding mechanism.

[0023] 2. In this utility model, the heat generated by the motor operation is expanded by the fins to increase the heat dissipation area and accelerate heat dissipation. The heat pipe is responsible for uniformly transferring heat, accelerating heat flow and avoiding accumulation. Coolant is injected into the water inlet pipe, and the heat is quickly neutralized by the copper pipe. The coolant is then discharged through the drain pipe, reducing heat through water cooling. The bottom heat transfer plate efficiently transfers heat, and the cool air is carried away by the heat dissipation duct, improving the heat dissipation efficiency of the motor and improving the performance and stability of the device. Attached Figure Description

[0024] Figure 1 This is a perspective view of the precision CNC feed mechanism for spiral grooving of the resistive film layer proposed in this utility model;

[0025] Figure 2 This is a front view of the precision CNC feed mechanism for spiral grooving of the resistive film layer proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the heat dissipation air duct of the precision CNC feed mechanism for spiral grooving of the resistive film layer proposed in this utility model;

[0027] Figure 4 This is a cross-sectional view of the lead screw of the precision CNC feed mechanism for spiral grooving of the resistive film layer proposed in this utility model.

[0028] Figure 5 This is a schematic diagram of the mounting plate for the precision CNC feed mechanism for spiral grooving of the resistive film layer proposed in this utility model.

[0029] Legend:

[0030] 1. Mounting base; 2. Vibration damping mechanism; 201. Motor; 202. Mounting plate; 203. Gasket; 204. Elastic rubber pad; 205. Vibration damping plate; 206. Pressure reducer; 207. Damper; 208. Sensor; 209. Mounting assembly; 2091. Bolt; 2092. Nut; 3. Heat dissipation mechanism; 301. Fin; 302. Heat pipe; 303. Copper pipe; 304. Water inlet pipe; 3 05. Drainage pipe; 306. Air-cooled assembly; 3061. Heat transfer plate; 3062. Heat dissipation duct; 4. Base plate; 5. Partition plate; 6. Drive mechanism; 601. Lead screw; 602. Through groove; 603. Coupling; 604. Bearing; 605. Guide rail; 7. Worktable; 8. Driven mechanism; 801. Nut; 802. Slide groove; 9. Fixed plate; 10. Connecting column; 11. Moving table; 12. Cutting tool. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1-5 An embodiment of this utility model provides a precision CNC feeding mechanism for spiral grooving of a resistive film layer, including a mounting base 1, a base plate 4, and a worktable 7. Two partitions 5 are fixedly connected to the top of the base plate 4. A vibration damping mechanism 2 is provided on the inner wall of the mounting base 1 for vibration damping of the motor 201. A heat dissipation mechanism 3 is provided on the inner wall of the mounting base 1 for heat dissipation of the motor 201. An active mechanism 6 is provided on the outer wall of the two partitions 5 for moving the device. A driven mechanism 8 is provided at the bottom of the worktable 7 for following.

[0033] The vibration damping mechanism 2 includes a motor 201. The outer wall of the motor 201 is fixedly connected to the outer wall of the mounting base 1. The motor 201 is the power component for the operation of the device, and it generates vibration and heat during operation. A mounting plate 202 is fixedly connected to the outer wall of the mounting base 1 for fixed connection with the motor 201. A gasket 203 is fixedly connected to the right side of the mounting plate 202 for anti-collision during installation and to absorb vibration amplitude when the motor 201 vibrates. An elastic rubber pad 204 is fixedly connected to the outer wall of the mounting base 1 to reduce the transmission of vibration amplitude. The left side of the mounting base 1... Two damping plates 205 are fixedly connected. The damping plates 205 can reduce the amplitude. Two pressure reducers 206 are fixedly connected to the left side of each of the two damping plates 205. A damper 207 is fixedly connected to the left side of each of the two damping plates 205. The pressure reducers 206 and dampers 207 are responsible for converting vibration, converting kinetic energy into mechanical energy, and finally into heat dissipation to reduce fluctuations. A sensor 208 is fixedly connected to the outer wall of the side partition 5. The sensor 208 is used to monitor the vibration of the motor 201 in real time. A mounting component 209 is provided on the outer wall of the motor 201. The mounting component 209 is used to mount the motor 201.

[0034] Mounting assembly 209 includes multiple bolts 2091, the outer walls of which are threaded to the outer wall of motor 201, and nuts 2092 are threaded to the outer walls of which are also threaded to the outer walls of motor 2091. Motor 201 is connected to mounting plate 202 via bolts 2091 and nuts 2092, which facilitates installation and replacement and facilitates vibration transmission.

[0035] Specifically, motor 201 is the power component for the device's operation, generating vibration and heat during operation. Mounting plate 202 is used for fixed connection with motor 201. Motor 201 is connected to mounting plate 202 via bolts 2091 and nuts 2092, facilitating installation and replacement and convenient vibration transmission. Shim 203 is used for collision protection during installation and absorbs amplitude when motor 201 vibrates. Elastic rubber pad 204 is used to reduce amplitude transmission. Vibration damping plate 205 can reduce amplitude. Pressure reducer 206 and damper 207 are responsible for converting vibration, converting kinetic energy into mechanical energy, and finally into heat dissipation, reducing fluctuations. Sensor 208 is used to monitor the vibration of motor 201 in real time and feeds back to damper 207 to dynamically change the damping coefficient, increasing the vibration suppression effect and ensuring the stable operation of motor 201, thereby improving the motion stability and grooving accuracy of the feeding mechanism.

[0036] Reference Figures 1-5The heat dissipation mechanism 3 includes multiple fins 301. The outer walls of the multiple fins 301 are fixedly connected to the outer wall of the mounting base 1. The fins 301 are used to expand the heat dissipation area and increase the contact area between the metal and the air. Multiple heat pipes 302 are fixedly connected to the outer wall of the mounting base 1. The heat pipes 302 are used to transfer heat and have good thermal conductivity. They distribute heat evenly and facilitate rapid heat transfer. Two copper pipes 303 are fixedly connected to the inner wall of the mounting base 1. The two copper pipes 303 themselves also have good thermal conductivity and are used to hold coolant and absorb surrounding heat. Two water inlet pipes 304 are fixedly connected to the top of the mounting base 1. The water inlet pipes 304 are used to fill water at the top and add coolant. Two drain pipes 305 are fixedly connected to the right side of the mounting base 1. The drain pipes 305 are used to drain water from the bottom. An air-cooling component 306 is provided at the bottom of the mounting base 1. The air-cooling component 306 is used for air-cooled heat dissipation.

[0037] The air-cooled assembly 306 includes a heat transfer plate 3061. The top of the heat transfer plate 3061 is fixedly connected to the bottom of the mounting base 1. The heat transfer plate 3061 is connected to the bottom of the mounting base 1 and the base plate 4. It has good thermal conductivity. The outer wall of the heat transfer plate 3061 is provided with multiple heat dissipation channels 3062. The heat dissipation channels 3062 are used to circulate cold air to form air-cooled heat dissipation and accelerate heat dissipation efficiency.

[0038] Specifically, fins 301 are used to expand the heat dissipation area and increase the contact area between the metal and the air. Heat pipes 302 are used to transfer heat, have good thermal conductivity, distribute heat evenly, and facilitate rapid heat transfer. The two copper pipes 303 themselves also have good thermal conductivity and are used to hold coolant and absorb surrounding heat. Water inlet pipe 304 is used to fill water at the top and add coolant. Drain pipe 305 is used to drain water at the bottom. Heat transfer plate 3061 is connected to the bottom of mounting base 1 and base plate 4 and has good thermal conductivity. Multiple heat dissipation ducts 3062 are opened on the outer wall of heat transfer plate 3061. Heat dissipation ducts 3062 are used to circulate cold air to form air cooling and accelerate heat dissipation efficiency. The combined effect of water cooling and air cooling significantly reduces the heat generated by motor 201, improves the heat dissipation efficiency of motor 201, and improves the performance and stability of the device.

[0039] Reference Figures 1-4The active mechanism 6 includes a lead screw 601, the right end of which is fixedly connected to the output end of the motor 201. The surface of the lead screw 601 is threaded, and when it rotates, it drives the thread groove to rotate, generating a forward or backward thrust. The outer walls of the two partitions 5 are provided with through grooves 602, and the through grooves 602 contain the unthreaded part of the lead screw 601. The output end of the motor 201 is fixedly connected to a coupling 603, which connects the motor 201 and the lead screw 601, so that the two rotate together. At the same time, it serves as a safety device to prevent the lead screw 601 from bearing excessive load, thus playing an overload protection role. The outer wall of the lead screw 601 is rotatably connected to two bearings 604, which reduce the coefficient of friction, reduce friction loss, and ensure rotational accuracy. The top of the base plate 4 is fixedly connected to two guide rails 605, which can engage with the slide groove 802 to play a limiting and stabilizing role.

[0040] The driven mechanism 8 includes two nuts 801, the outer walls of which are fixedly connected to the bottom of the worktable 7. The nuts 801 engage with the threaded part of the lead screw 601. The rotation of the lead screw 601 drives the thread to rotate, providing a moving force perpendicular to the direction of rotation. Two slide grooves 802 are provided at the bottom of the worktable 7. The slide grooves 802 engage with the guide rail 605 to ensure that the worktable 7 runs on the specified trajectory.

[0041] The top of the worktable 7 is fixedly connected to two fixed plates 9, which are used to fix the movable table 11. The outer walls of the two fixed plates 9 are fixedly connected to connecting columns 10, which strengthen the connection. The outer walls of the two fixed plates 9 are fixedly connected to the same movable table 11, which provides the power for rotating the groove. The left end of the movable table 11 is fixedly connected to a cutting tool 12, which is sharp and used for grooving.

[0042] Specifically, the lead screw 601 has a threaded surface, which rotates when the screw groove rotates, generating a forward or backward thrust. The through groove 602 contains the unthreaded part of the lead screw 601. The coupling 603 connects the motor 201 and the lead screw 601, allowing them to rotate together. It also serves as a safety device to prevent the lead screw 601 from bearing excessive loads, providing overload protection. The bearing 604 reduces the coefficient of friction, minimizes friction loss, and ensures rotational accuracy. The guide rail 605 engages with the slide rail 802, providing a limiting and stabilizing function. The nut 801 engages with the threaded part of the lead screw 601. The rotation of the lead screw 601 drives the threaded part to rotate, providing a moving force perpendicular to the direction of rotation, which moves the worktable 7. The slide rail 802 engages with the guide rail 605, ensuring that the worktable 7 runs on the specified trajectory. The fixing plate 9 is used to fix the moving table 11. The connecting column 10 strengthens the connection. The moving table 11 generates the power for rotating and grooving. The cutting tool 12 is sharp and used for grooving, ensuring that the device can perform precise spiral grooving of the resistance film layer.

[0043] Working principle: Motor 201 is the power component for the device's operation, generating vibration and heat during operation. Mounting plate 202 is used for fixed connection with motor 201. Motor 201 is connected to mounting plate 202 via bolts 2091 and nuts 2092, facilitating installation and replacement and convenient vibration transmission. Shim 203 is used to prevent collisions during installation and absorbs amplitude when motor 201 vibrates. Elastic rubber pad 204 is used to reduce amplitude transmission. Vibration damping plate 205 can reduce amplitude. Pressure reducer 206 and damper 207 are responsible for converting vibration, converting kinetic energy into mechanical energy, and finally into heat dissipation, reducing fluctuations. Sensor 208 is used to monitor the vibration of motor 201 in real time and feeds back to damper 207 to dynamically change the damping coefficient, increasing the vibration suppression effect and ensuring the stable operation of motor 201, thereby improving the motion stability and grooving accuracy of the feeding mechanism.

[0044] Furthermore, the motor 201 also requires heat dissipation. Fins 301 are used to expand the heat dissipation area and increase the contact area between the metal and the air. Heat pipes 302 are used to transfer heat, have good thermal conductivity, distribute heat evenly, and facilitate rapid heat transfer. Two copper pipes 303 themselves also have good thermal conductivity and are used to hold coolant and absorb surrounding heat. Water inlet pipe 304 is used to fill water at the top and add coolant. Drain pipe 305 is used to drain water at the bottom. Heat transfer plate 3061 is connected to the bottom of mounting base 1 and base plate 4 and has good thermal conductivity. Multiple heat dissipation air ducts 3062 are opened on the outer wall of heat transfer plate 3061. Heat dissipation air ducts 3062 are used to circulate cold air to form air cooling and accelerate heat dissipation efficiency. The combined effect of water cooling and air cooling significantly reduces the heat generated by motor 201, improves the heat dissipation efficiency of motor 201, and improves the performance and stability of the device.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A precision CNC feed mechanism for spiral grooving of resistive film layer, comprising a mounting base (1), a base plate (4), and a worktable (7), characterized in that: The top of the base plate (4) is fixedly connected to two partitions (5), the inner wall of the mounting base (1) is provided with a vibration damping mechanism (2), the inner wall of the mounting base (1) is provided with a heat dissipation mechanism (3), the outer wall of the two partitions (5) is provided with an active mechanism (6), and the bottom of the workbench (7) is provided with a driven mechanism (8). The vibration damping mechanism (2) includes a motor (201), the outer wall of which is fixedly connected to the outer wall of the mounting base (1). The outer wall of the mounting base (1) is fixedly connected to a mounting plate (202). A gasket (203) is fixedly connected to the right side of the mounting plate (202). An elastic rubber pad (204) is fixedly connected to the outer wall of the mounting base (1). Two vibration damping plates (205) are fixedly connected to the left side of the mounting base (1). Two pressure reducers (206) are fixedly connected to the left side of each of the two vibration damping plates (205). A damper (207) is fixedly connected to the left side of each of the two vibration damping plates (205). A sensor (208) is fixedly connected to the outer wall of the partition (5) on the right side. An installation assembly (209) is provided on the outer wall of the motor (201).

2. The precision CNC feed mechanism for spiral grooving of resistive film layer according to claim 1, characterized in that: The heat dissipation mechanism (3) includes multiple fins (301), the outer walls of the multiple fins (301) are fixedly connected to the outer wall of the mounting base (1), the outer wall of the mounting base (1) is fixedly connected to multiple heat pipes (302), the inner wall of the mounting base (1) is fixedly connected to two copper pipes (303), the top of the mounting base (1) is fixedly connected to two water inlet pipes (304), the right side of the mounting base (1) is fixedly connected to two drain pipes (305), and the bottom of the mounting base (1) is provided with an air-cooling component (306).

3. The precision CNC feed mechanism for spiral grooving of the resistive film layer according to claim 1, characterized in that: The active mechanism (6) includes a lead screw (601), the right end of which is fixedly connected to the output end of the motor (201). The outer walls of the two partitions (5) are provided with through slots (602). The output end of the motor (201) is fixedly connected to a coupling (603). The outer wall of the lead screw (601) is rotatably connected to two bearings (604). The top of the base plate (4) is fixedly connected to two guide rails (605).

4. The precision CNC feed mechanism for spiral grooving of the resistive film layer according to claim 1, characterized in that: The driven mechanism (8) includes two nuts (801), the outer walls of which are fixedly connected to the bottom of the workbench (7), and the bottom of the workbench (7) has two grooves (802).

5. The precision CNC feed mechanism for spiral grooving of resistive film layer according to claim 1, characterized in that: The mounting assembly (209) includes a plurality of bolts (2091), the outer walls of which are threaded to the outer wall of the motor (201), and the outer walls of which are threaded to nuts (2092).

6. The precision CNC feed mechanism for spiral grooving of the resistive film layer according to claim 2, characterized in that: The air-cooled assembly (306) includes a heat transfer plate (3061), the top of which is fixedly connected to the bottom of the mounting base (1), and the outer wall of the heat transfer plate (3061) is provided with multiple heat dissipation air ducts (3062).

7. The precision CNC feed mechanism for spiral grooving of resistive film layer according to claim 1, characterized in that: The top of the workbench (7) is fixedly connected to two fixing plates (9), and the outer walls of the two fixing plates (9) are fixedly connected to connecting columns (10).

8. The precision CNC feed mechanism for spiral grooving of resistive film layer according to claim 7, characterized in that: The outer walls of the two fixed plates (9) are fixedly connected to the same moving platform (11), and the left end of the moving platform (11) is fixedly connected to a cutting tool (12).

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