Auxiliary chamfering mechanism of edge grinding machine

Abstract

The utility model discloses an auxiliary chamfering mechanism of an edge grinding machine. The auxiliary chamfering mechanism comprises a base; the X-axis motor is mounted on the base and is connected with the lathe head through a screw rod; the lathe head is installed on the base through a guide rail sliding block and can move in the X direction along a guide rail; the left shaft is mounted in a left shaft hole of the lathe head, and the left chuck is mounted at the shaft end of the left shaft; the right shaft is mounted in a right shaft hole of the lathe head, and the right chuck is mounted at the shaft end of the right shaft; the grinding wheel is mounted on the base and can move back and forth; the displacement sensor is mounted on the headstock; the stop block is mounted on the right shaft; the mounting seat is mounted on the stop block; the handle mechanism is installed on the lathe head and used for controlling the right shaft to slide along the shaft hole. The position of the right shaft clamping the product is detected in real time through the displacement sensor, so that the change of the thickness of the product is detected, compensation is carried out in the control system, and the problem of inconsistent chamfers caused by the thickness error of the product is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of edge grinding machine equipment, specifically to an auxiliary chamfering mechanism for an edge grinding machine. Background Technology

[0002] Our company's independently developed CNC edge grinding machine uses a servo system to control the guide rail screw to move the headstock and grinding head frame left and right. It can accurately control the grinding dimensions and chamfer dimensions of the outer circle. However, due to the thickness error of the product, especially some spherical optical lens products, the thickness error can reach about 0.5mm, which causes a large difference in the chamfer produced each time the product is moved to a fixed right chamfer position. Utility Model Content

[0003] The purpose of this utility model is to solve the above-mentioned technical problems, thereby providing an auxiliary chamfering mechanism for an edge grinding machine;

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] This utility model provides an auxiliary chamfering mechanism for an edge grinding machine.

[0006] include:

[0007] Base;

[0008] An X-axis motor is mounted on the base and connected to the headstock via a lead screw. The X-axis motor is used to control the speed and position of the headstock moving along the guide rail in the X direction.

[0009] The front box is mounted on the base via a guide rail slider and can move along the guide rail in the X direction;

[0010] The left shaft installed in the left shaft hole of the front box, and the left chuck installed at the end of the left shaft;

[0011] The right shaft installed in the right shaft hole of the head box, and the right chuck installed at the end of the right shaft;

[0012] A grinding wheel mounted on the base and capable of moving back and forth;

[0013] Displacement sensors installed on the front of the vehicle;

[0014] A stop block mounted on the right shaft, and a mounting bracket mounted on the stop block;

[0015] A handle mechanism installed on the front of the vehicle for controlling the right axle to slide along the shaft hole.

[0016] Optionally, the headstock is connected to the base via a guide rail slider and can move along the guide rail in the X direction under the drive of the X-axis motor.

[0017] Optionally, the right shaft can be controlled by the handle mechanism to slide along the right shaft hole of the headstock to adjust the distance between the right chuck and the left chuck, adapting to the clamping requirements of workpieces of different sizes.

[0018] Optionally, the displacement sensor is installed on the front of the vehicle to monitor the movement of the front of the vehicle in the X direction in real time and feed the signal back to the control system to achieve precise position control.

[0019] Optionally, the stop is mounted on the right shaft and moves with the right shaft, and the mounting base is mounted on the stop for mounting or fixing other auxiliary tools or components.

[0020] Optionally, the grinding wheel is mounted on the base and can move back and forth to adjust the relative position between the grinding wheel and the workpiece, thereby achieving chamfering of the workpiece edge.

[0021] In summary, this utility model has the following beneficial effects:

[0022] The displacement sensor of this application is installed on the headstock and can monitor the movement of the headstock in the X direction in real time. It feeds the signal back to the control system, which then precisely controls the movement of the X-axis motor based on the feedback signal, forming a closed-loop control system. This effectively avoids headstock position deviation caused by mechanical transmission errors, motor inertia, and other factors, thereby achieving high-precision positioning of the workpiece, ensuring the dimensional accuracy of chamfering, and solving the problem of large differences in grinding chamfers caused by product thickness errors in the prior art. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Explanation of reference numerals in the attached diagram: 1-base, 2-X-axis motor, 3-headstock, 4-left shaft, 5-left chuck, 6-right shaft, 7-right chuck, 8-grinding wheel, 9-displacement sensor, 10-stop, 11-mounting base, 12-handle mechanism. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] Example:

[0027] like Figure 1 As shown, this utility model provides an auxiliary chamfering mechanism for an edge grinding machine.

[0028] include:

[0029] Base 1;

[0030] The X-axis motor 2 is mounted on the base 1 and is connected to the headstock 3 via a lead screw. It is used to control the moving speed and position of the headstock 3 along the guide rail in the X direction.

[0031] The front box 3 is mounted on the base 1 via a guide rail slider and can move along the guide rail in the X direction;

[0032] The left shaft 4 is installed in the left shaft hole of the head box 3, and the left chuck 5 is installed at the shaft end of the left shaft 4;

[0033] The right shaft 6 is installed in the right shaft hole of the head box 3, and the right chuck 7 is installed at the shaft end of the right shaft 6;

[0034] A grinding wheel 8 is mounted on the base 1 and can move back and forth;

[0035] Displacement sensor 9 is installed on the front box 3;

[0036] A stop 10 is installed on the right shaft 6, and a mounting base 11 is installed on the stop 10;

[0037] A handle mechanism 12, mounted on the front box 3, is used to control the right axle 6 to slide along the axle hole.

[0038] The base 1 serves as the supporting foundation. The X-axis motor 2 controls the movement of the headstock 3 in the X direction via a lead screw. The left shaft 4 and right shaft 6 mounted on the headstock 3 are equipped with left chuck 5 and right chuck 7 respectively for clamping the workpiece. The grinding wheel 8 can move back and forth for chamfering. The displacement sensor 9 is used to monitor the position. The handle mechanism 12 is used to adjust the position of the right shaft 6. The stop block 10 and the mounting base 11 can be used to expand other functional components. All components work together to complete the auxiliary chamfering function of the edge grinding machine.

[0039] Optionally, the head box 3 is connected to the base 1 via a guide rail slider, and can move along the guide rail in the X direction under the drive of the X-axis motor 2.

[0040] The headstock 3 is connected to the base 1 via a guide rail slider, ensuring the smoothness and accuracy of the headstock 3's movement in the X direction. The X-axis motor 2 drives the headstock 3 to move along the guide rail in the X direction via a lead screw, enabling the headstock 3 to move precisely at the set speed and position, thus providing a guarantee for the subsequent precise machining of the workpiece.

[0041] Optionally, the right shaft 6 can be controlled by the handle mechanism 12 to slide along the right shaft 6 hole of the headstock 3 to adjust the distance between the right chuck 7 and the left chuck 5, so as to adapt to the clamping requirements of workpieces of different sizes.

[0042] By controlling the right shaft 6 to slide along the right shaft 6 hole of the headstock 3 through the handle mechanism 12, the distance between the right chuck 7 and the left chuck 5 can be easily adjusted, so that the auxiliary chamfering mechanism can adapt to the clamping requirements of workpieces of different sizes, improve the versatility and flexibility of the mechanism, and avoid the need to change equipment or make complex adjustments due to different workpiece sizes.

[0043] Optionally, the displacement sensor 9 is installed on the front box 3 to monitor the movement position of the front box 3 in the X direction in real time and feed the signal back to the control system to achieve precise position control.

[0044] The displacement sensor 9 is installed on the front box 3, which can monitor the movement position of the front box 3 in the X direction in real time and feed the signal back to the control system. Through this feedback mechanism, the control system can achieve precise control of the position of the front box 3, thereby ensuring the accuracy of the chamfering process and effectively solving the problem of large chamfering differences caused by product thickness errors in the background technology.

[0045] In this application, the control system adopts a PLC system, and the displacement sensor 9 is installed on the head box 3. Its working principle is based on specific physical effects such as changes in resistance, capacitance, inductance, photoelectricity, magnetoelectricity, etc. to sense the position change of the head box 3 in the X direction, and converts these physical changes into electrical signals such as voltage, current, frequency, etc. After receiving these electrical signals, the control system processes and analyzes them through internal algorithms to obtain the precise position information of the head box 3 in real time. According to the preset processing parameters and target position, the control system compares the difference between the actual position and the target position, and then sends control commands to the X-axis motor 2 to adjust the motor speed, direction or running time, so that the head box 3 moves accurately to the target position, thereby achieving precise position control.

[0046] Taking a common grating displacement sensor 9 as an example, the grating displacement sensor 9 is usually composed of a scale grating and a grating reading head. The scale grating is fixed on the base 1, parallel to the X direction of movement of the cab 3. The grating reading head is installed on the cab 3 and moves with the cab 3. When the cab 3 moves in the X direction, the grating reading head moves relative to the scale grating. The scale grating has uniformly distributed grating stripes. The grating reading head contains a light source, an indicator grating, and a photoelectric detection element. The light emitted by the light source is modulated by the indicator grating and the scale grating to form alternating bright and dark moiré fringes. The photoelectric detection element converts the light intensity changes of the moiré fringes into electrical signals, usually sine or cosine signals. By processing and counting these electrical signals, the moving distance and position of the cab 3 can be accurately determined.

[0047] The grating displacement sensor 9 feeds back the detected position signal to the control system in real time. This signal is usually a pulse sequence, with each pulse representing a certain displacement, for example, 0.001 mm per pulse. After receiving the pulse sequence, the control system counts the pulses using an internal counter. Simultaneously, the control system calculates the deviation between the actual position and the target position of the headstock 3 based on preset processing parameters such as the target chamfer position and processing speed, and the current counting result. Based on the calculated deviation, the control system generates corresponding control commands. If the actual position of the headstock 3 is less than the target position, the control system sends a forward rotation command to the X-axis motor 2, causing the motor to drive the headstock 3 to move towards the target position. If the actual position is greater than the target position, the control system sends a reverse rotation command, causing the headstock 3 to move in the opposite direction.

[0048] During the movement of the cab 3, the grating displacement sensor 9 continuously feeds back position signals. The control system continuously adjusts the control commands based on the feedback signals, forming a closed-loop control system. For example, when the cab 3 approaches the target position, the control system will gradually reduce the speed of the motor, so that the cab 3 slowly approaches the target position, avoiding overshoot due to inertia, thereby achieving precise position control.

[0049] Optionally, the stop 10 is mounted on the right shaft 6 and moves with the right shaft 6, and the mounting base 11 is mounted on the stop 10 for mounting or fixing other auxiliary tools or components.

[0050] The stop block 10 is mounted on the right shaft 6 and moves with the right shaft 6. The mounting base 11 is mounted on the stop block 10, providing a position for installing or fixing other auxiliary tools or components. The function of the auxiliary chamfering mechanism can be easily expanded through the mounting base 11, such as installing measuring tools, cooling devices, etc., which improves the adaptability and versatility of the mechanism.

[0051] Optionally, the grinding wheel 8 is mounted on the base 1 and can move back and forth to adjust the relative position between the grinding wheel 8 and the workpiece, thereby achieving chamfering of the workpiece edge.

[0052] The grinding wheel 8 is mounted on the base 1 and can move back and forth. By adjusting the relative position between the grinding wheel 8 and the workpiece, the chamfering of the workpiece edge can be achieved. The adjustable position setting of the grinding wheel 8 allows the contact position between the grinding wheel 8 and the workpiece to be flexibly adjusted according to different workpiece requirements and processing technology, thereby ensuring the quality and effect of the chamfering process.

[0053] In this application, the X-axis motor 2 controls the movement of the headstock 3 in the X direction via a lead screw drive, thereby driving the left shaft 4, right shaft 6 mounted on the headstock 3 and the clamped workpiece to move in the X direction to adjust the relative position of the workpiece and the grinding wheel 8. The handle mechanism 12 controls the right shaft 6 to slide along the hole of the right shaft 6, thereby adjusting the distance between the right chuck 7 and the left chuck 5 to accommodate workpieces of different sizes. The displacement sensor 9 monitors the movement position of the headstock 3 in the X direction in real time and feeds the signal back to the control system. The control system accurately controls the movement of the X-axis motor 2 according to the feedback signal to achieve precise control of the position of the headstock 3. The grinding wheel 8 adjusts its relative position with the workpiece by moving back and forth to perform chamfering on the edge of the workpiece.

[0054] In the process of using this application, firstly, the operator controls the right shaft 6 to slide along the right shaft 6 hole of the headstock 3 through the handle mechanism 12, and adjusts the distance between the right chuck 7 and the left chuck 5 to adapt to the size of the workpiece to be processed. Then, the workpiece is placed between the left chuck 5 and the right chuck 7, and the position of the right shaft 6 is further adjusted through the handle mechanism 12 so that the left chuck 5 and the right chuck 7 firmly clamp the workpiece. The X-axis motor 2 is started, and the X-axis motor 2 drives the headstock 3 to move along the guide rail in the X direction through the lead screw drive, moving the workpiece to the approximate processing position. The displacement sensor 9 monitors the movement position of the headstock 3 in the X direction in real time and feeds the signal back to the control system. The control system precisely controls the movement of the X-axis motor 2 based on preset processing parameters and feedback signals from the displacement sensor 9, causing the headstock 3 to move the workpiece to a precise processing position. According to the chamfering requirements of the workpiece, the system adjusts the front-to-back position of the grinding wheel 8 on the base 1, ensuring that the grinding wheel 8 and the edge of the workpiece are in a suitable relative position to meet the size and shape requirements of the chamfering process. The grinding wheel 8 motor is started, causing the grinding wheel 8 to rotate at high speed. As the headstock 3 continues to move under the drive of the X-axis motor 2, the grinding wheel 8 performs chamfering on the edge of the workpiece. During the processing, the displacement sensor 9 continuously monitors the position of the headstock 3 to ensure processing accuracy. When the chamfering is completed, the X-axis motor 2 stops moving, and the grinding wheel 8 motor also stops working.

[0055] The operator controls the right shaft 6 to slide through the handle mechanism 12, releases the right chuck 7, and removes the machined workpiece from the chuck, completing one chamfering process. If it is necessary to continue machining the next workpiece, the above steps can be repeated.

[0056] The displacement sensor 9 of this application is installed on the headstock 3, which can monitor the movement position of the headstock 3 in the X direction in real time and feed the signal back to the control system. The control system accurately controls the movement of the X-axis motor 2 based on the feedback signal, forming a closed-loop control system. This effectively avoids the position deviation of the headstock 3 caused by mechanical transmission errors, motor inertia and other factors, thereby achieving high-precision positioning of the workpiece, ensuring the dimensional accuracy of chamfering, and solving the problem of large differences in grinding chamfers caused by product thickness errors in the prior art.

[0057] The handle mechanism 12 controls the right shaft 6 to slide along the right shaft 6 hole of the headstock 3, which can precisely adjust the distance between the right chuck 7 and the left chuck 5, ensuring the accuracy and stability of workpiece clamping. During the processing, even a slight change in the workpiece position may affect the chamfer quality, while precise adjustment of the chuck distance can ensure that the workpiece is always in the correct position during the processing, further improving the accuracy of chamfering.

[0058] The position of the right shaft 6 can be adjusted by the handle mechanism 12, so that the distance between the right chuck 7 and the left chuck 5 can be changed, which can adapt to the clamping requirements of workpieces of different sizes. Whether it is a small optical lens or a large mechanical part, this auxiliary chamfering mechanism can achieve stable clamping of the workpiece through simple operation without changing equipment or making complex adjustments, which greatly improves the versatility and applicability of the equipment.

[0059] The handle mechanism 12 allows operators to easily and quickly adjust the position of the right shaft 6, thereby changing the distance between the right chuck 7 and the left chuck 5. Compared with the traditional method of adjustment through complex mechanical structures or electronic control systems, the handle mechanism 12 is simple and intuitive to operate, reduces the skill requirements of operators, and improves work efficiency.

[0060] The displacement sensor 9 monitors the position of the cab 3 in real time and feeds the signal back to the control system. Operators can intuitively understand the current position and movement status of the cab 3 through the control system. During the processing, there is no need for frequent manual measurement and adjustment, which reduces the number of operation steps and sources of error, making the operation more convenient and efficient.

[0061] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An auxiliary chamfering mechanism for an edge grinding machine, characterized in that, include: Base; An X-axis motor is mounted on the base and connected to the headstock via a lead screw. The X-axis motor is used to control the speed and position of the headstock moving along the guide rail in the X direction. The front box is mounted on the base via a guide rail slider and can move along the guide rail in the X direction; The left shaft installed in the left shaft hole of the front box, and the left chuck installed at the end of the left shaft; The right shaft installed in the right shaft hole of the head box, and the right chuck installed at the end of the right shaft; A grinding wheel mounted on the base and capable of moving back and forth; Displacement sensors installed on the front of the vehicle; A stop block mounted on the right shaft, and a mounting bracket mounted on the stop block; A handle mechanism installed on the front of the vehicle for controlling the right axle to slide along the shaft hole.

2. The auxiliary chamfering mechanism of the edge grinding machine according to claim 1, characterized in that, The headstock is connected to the base via a guide rail slider and can move along the guide rail in the X direction under the drive of the X-axis motor.

3. The auxiliary chamfering mechanism of the edge grinding machine according to claim 1, characterized in that, The right shaft is controlled by the handle mechanism to slide along the right shaft hole of the headstock, so as to adjust the distance between the right chuck and the left chuck to meet the clamping requirements of workpieces of different sizes.

4. The auxiliary chamfering mechanism of the edge grinding machine according to claim 1, characterized in that, The displacement sensor is installed on the front of the vehicle to monitor the movement of the front of the vehicle in the X direction in real time and feed the signal back to the control system to achieve precise position control.

5. The auxiliary chamfering mechanism of the edge grinding machine according to claim 1, characterized in that, The stop block is mounted on the right shaft and moves with the right shaft. The mounting base is mounted on the stop block and is used to install or fix other auxiliary tools or components.

6. The auxiliary chamfering mechanism of the edge grinding machine according to claim 1, characterized in that, The grinding wheel is mounted on the base and can move back and forth to adjust the relative position between the grinding wheel and the workpiece, thereby achieving chamfering of the workpiece edge.

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