A high-precision thickness control device for diamond planar polishing

Abstract

The utility model relates to diamond processing equipment technical field discloses a high accuracy thickness control device for diamond plane grinding, including electrically conductive contact piece, elastic support, adjusting spare, fixed part, rotary base, sliding part and control module. Electrically conductive contact piece is set up sliding piece, and elastic support is set its outside and is in abutment sliding piece with electrically conductive contact piece lower part, adjusting spare drive sliding piece drive electrically conductive contact piece up and down movement, and fixed part fixes sliding piece position, rotary base is connected with the grinding head, and the lower end of electrically conductive contact piece can be in contact with the grinding machine grinding wheel surface and is electrically conductive, communicates through signal transmission assembly and control module, and after receiving short circuit signal, control grinding head drive mechanism stops and reverses to the preset zero point. The device solves the drawbacks of traditional shutdown multiple measurement, one-time grinding in place improves efficiency, and adapts old equipment, and simple structure low in cost.

Description

Technical Field

[0001] This utility model relates to the field of diamond processing equipment technology, and in particular to a high-precision thickness control device for diamond planar grinding. Background Technology

[0002] In the surface grinding of diamond, high-precision machining is crucial. First, a stable support fixture is needed to hold the diamond, which is then placed in a specialized grinding head and subjected to fine grinding with the grinding wheel. It is noteworthy that accurately controlling the grinding of the diamond sheet to achieve the customer's required thickness, while simultaneously achieving rapid measurement to minimize downtime and labor costs, is critical. This places significant demands on the grinding machine's structural design and high-precision thickness control to ensure the final product quality. The current method involves stopping the grinding head, removing the diamond sheet, and measuring it with measuring tools. This method is inefficient, wastes considerable downtime with each measurement, and fails to achieve accurate thickness control in a single operation, significantly impacting the production efficiency of surface grinding of diamond. Utility Model Content

[0003] Based on the aforementioned technical problems, this utility model proposes a high-precision thickness control device for diamond planar grinding. The lower end of the conductive contact can make contact with the grinding wheel surface of the mill and conduct electricity. It communicates with the control module through a signal transmission component. After receiving a short circuit signal, it controls the grinding head drive mechanism to stop and reverse to the preset zero point. This device solves the drawback of traditional multiple measurements after stopping the machine, improves efficiency by grinding in one go, and is compatible with old equipment. It has a simple structure and low cost.

[0004] To achieve the following objectives, this utility model adopts the following technical solution: a high-precision thickness control device for diamond planar grinding, comprising a conductive contact, an elastic support, an adjusting component, a fixing component, a rotating base, a sliding component, and a control module; the conductive contact is movably inserted through the sliding component, the elastic support is sleeved on the outside of the conductive contact and its two ends respectively abut against the lower part of the sliding component and the conductive contact; the adjusting component forms a mating connection with the sliding component, used to drive the sliding component to move the conductive contact in the vertical direction; the fixing component forms a mating connection with the mounting base of the sliding component, used to fix the position of the sliding component after adjustment; The rotating base is connected to the grinding head through a rotating structure. The lower end of the conductive contact can contact the grinding wheel surface of the mill and form a conductive connection. It is also connected to the control module through a signal transmission component. The control module is used to receive the short circuit signal generated by the contact between the conductive contact and the grinding wheel surface, and then control the driving mechanism of the grinding head to stop moving downward and move upward in the opposite direction to the preset zero position.

[0005] To further optimize this utility model, the following technical solutions may be preferred: Preferably, the upper end of the conductive contact is provided with an insulating part, and the lower end is made of a highly conductive and wear-resistant material.

[0006] Preferably, the elastic support is used to provide suspended support for the conductive contact when the diamond does not reach the required thickness, and to generate elastic deformation when the grinding head presses the conductive contact downward.

[0007] Preferably, the rotating structure is centered on the equal-height screw, includes two rotating plates (upper and lower), and is equipped with two ball screws for positioning the rotating plates at 90 degrees.

[0008] Preferably, the control module includes a self-made circuit control board, and the signals of the conductive contact are connected to the grinding head control circuit through the self-made circuit control board.

[0009] Preferably, the conductive contact, elastic support, adjusting component, fixing component, positioning component, shaft component, and signal transmission assembly adopt a combination structure of customized processed parts and general standard parts, and each component is assembled through a detachable connection structure.

[0010] Preferably, the adjusting component is an adjusting screw, the fixing component is a fixing screw, the conductive contact is a conductive pin, the elastic support is a spring sleeved on the conductive contact, and the control module is a 0V power line; the conductive pin, spring, adjusting screw, fixing screw, ball screw, equal-height screw, and 0V power line are detachably connected by screws.

[0011] This invention effectively solves the technical problems of existing diamond surface grinding, which requires multiple machine stops to measure thickness and results in low production efficiency, and has the following significant advantages: (1) Improved efficiency and precision: By contacting the conductive contact (conductive needle) with the grinding wheel surface to trigger a short circuit signal, the control module can directly drive the grinding head to stop moving down and return to its original position, so as to achieve one-time grinding and completely eliminate the traditional stop-and-take measurement mode, avoid equipment downtime and waste, and greatly improve batch grinding efficiency; at the same time, the elastic support (wire spring) forms a stable suspended support for the conductive contact when grinding is not in place, ensuring accurate signal triggering and ensuring the processing accuracy of diamond thickness.

[0012] (2) High ease of operation and maintenance: The rotating structure is centered on the equal height screw and uses ball screws to achieve 90-degree precise positioning. When the grinding wheel is worn and replaced, only the base needs to be rotated to avoid the operating space. There is no need to disassemble the device, which reduces the difficulty of maintenance. All parts are connected by detachable screws, making assembly and maintenance convenient.

[0013] (3) Strong adaptability and controllable cost: The device is compatible with the size of common grinding mills and grinding heads on the market, and can be directly installed on old equipment to achieve upgrades and transformations without replacing the whole machine, thus reducing the cost of equipment replacement; the components are a combination of customized processed parts (such as conductive needles) and common standard parts (such as adjusting screws), which are simple in structure and not easily damaged, further controlling manufacturing costs and subsequent maintenance costs. Attached Figure Description

[0014] Figure 1 This diagram shows the overall structure of the high-precision thickness control device for planar grinding according to this utility model. Figure 2 A top view of the high-precision thickness control device for planar grinding of this utility model is shown; Figure 3 A cross-sectional view of the high-precision thickness control device for planar grinding of this utility model is shown; Figure 4 This diagram illustrates the state of the present invention during machine shutdown and grinding wheel replacement. Figure 5 This diagram illustrates the contact of the conductive needle in the present invention where the thickness was not properly ground. Figure 6 The diagram shows a schematic of the conductive needle contact after the thickness grinding is completed according to this invention.

[0015] In the diagram: 1. Conductive pin; 2. Wire spring; 3. Adjusting screw; 4. Fixing screw; 5. Ball screw; 6. Equalizing screw; 7. 0V signal line; 8. First rotating plate; 9. Second rotating plate; 10. Slider mounting base. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the contents disclosed below.

[0018] The following combination Figures 1 to 6 The technical solution of this utility model will be further explained.

[0019] (I) Components of the apparatus In this embodiment, the high-precision thickness control device for diamond planar grinding specifically includes: Conductive contact: The conductive needle 1 is made of beryllium copper material. Its upper end is covered with a plastic insulating cap (to prevent accidental short circuit when the grinding head contacts it). Due to the properties of beryllium copper material, the lower end has both high conductivity and high wear resistance. Elastic support: A wire spring 2 sleeved on the outside of the conductive needle 1, with both ends of the wire spring 2 abutting against the sliding member (slider) and the lower part of the conductive needle 1 respectively; Adjustment and fixing components: The adjustment component is the adjustment screw 3 (which is threaded to the slider to drive the slider to move up and down), and the fixing component is the fixing screw 4 (which is threaded to the slider mounting base 10 to lock the slider position). Rotation and positioning components: The rotating base includes a rotating base plate and a slider mounting base. The upper and lower rotating plates (first rotating plate 8 and second rotating plate 9) are centered on the equal height screw 6 and are used in conjunction with two ball screws 5 to achieve 90-degree positioning. Control and signal components: The control module includes a self-made circuit control board. The signal transmission component is a 0V signal line 7, which connects the conductive pin 1 to the self-made circuit control board. The control board is also connected to the existing control circuit of the grinding head.

[0020] Each component is assembled by connecting detachable screws, and standard parts (such as adjusting screws and height equalizing screws) adopt common market specifications to ensure convenient procurement and replacement.

[0021] (II) Operation during the debugging phase Before commissioning, ensure the mill has completely stopped. The specific steps are as follows: (1) Attach the standard thickness gauge piece, which is consistent with the target thickness of the diamond to be ground, to the diamond bonding fixture and press it firmly. Then place the fixture into the fixture placement tray of the grinding head. (2) Press the "Function Up" button of the grinding head control module to drive the servo motor (grinding head drive mechanism) to rotate, which will drive the ball screw to move the grinding head downward until the grinding head and the grinding wheel surface of the grinding machine are completely locked (establish the starting point of the thickness reference). (3) Turn the adjusting screw 3 by hand. Because the adjusting screw 3 is threaded with the slider, it will drive the slider to move the conductive needle 1 downward synchronously until the lower end of the conductive needle 1 contacts the grinding wheel surface to conduct electricity. At this time, the buzzer of the grinding machine cabinet will sound an alarm, indicating that the thickness reference calibration is completed. (4) Immediately tighten the fixing screw 4 to lock the slider position. Then drive the grinding head upward through the servo motor, take out the standard thickness gauge piece, and the debugging is completed.

[0022] (III) Batch grinding process (1) Place the tooling with the diamond sheets to be ground on it into the tooling placement tray of the grinding head in batches, and start the grinding machine; (2) The servo motor drives the grinding head to move continuously downward, and the grinding wheel grinds the diamond sheets; when the grinding is not in place, the spring 2 forms a suspended support for the conductive needle 1, the conductive needle 1 does not contact the grinding wheel surface, and the circuit is not connected; (3) When the diamond sheets are ground to the target thickness, the large plate surface of the grinding head contacts the plastic insulating cap at the upper end of the conductive needle 1 (to avoid accidental short circuit), and continuously presses the conductive needle 1, forcing the spring 2 to deform elastically, and the conductive needle 1 moves down accordingly; (4) Until the lower end of the conductive needle 1 contacts the grinding wheel surface to conduct electricity, the 0V signal line 7 transmits the short circuit signal to the self-made circuit control board; after receiving the signal, the control board immediately controls the servo motor to stop moving downward and drives it to rotate in the opposite direction, driving the grinding head to move upward to the preset mechanical zero point position of the equipment, and completing the single batch grinding.

[0023] (iv) Grinding wheel replacement operation: When the grinding wheel is worn and needs to be replaced: (1) Turn off the power to the mill and wait for the grinding wheel to stop rotating completely; (2) Press the "Function Up" button on the grinding head to control the servo motor to raise the grinding head to the preset zero point; (3) Push the simple mold head on the rotating base, and with the equal height screw 6 as the axis, drive the upper and lower rotating plates to rotate 90 degrees to the left. The ball screw 5 positions the rotating plate to ensure that the grinding wheel removal space is avoided; (4) After removing the old grinding wheel and installing the new grinding wheel, rotate the rotating plate in the opposite direction to the initial position. The ball screw 5 is positioned again to restore the working state of the device, and the grinding can be restarted. Note: The beryllium copper material specifications of the conductive needle 1 and the elastic parameters of the wire spring 2 can be adjusted according to the diamond grinding thickness requirements to ensure that the device is compatible with diamond surface grinding operations of different specifications.

[0024] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-precision thickness control device for diamond planar grinding, characterized in that, The device includes a conductive contact, an elastic support, an adjusting component, a fixing component, a rotating base, a sliding component, and a control module. The conductive contact is movably inserted through the sliding component. The elastic support is sleeved on the outside of the conductive contact and its two ends abut against the lower parts of the sliding component and the conductive contact. The adjusting component is connected to the sliding component to drive the sliding component to move the conductive contact in the vertical direction. The fixing component is connected to the mounting base of the sliding component to fix the position of the sliding component after adjustment. The rotating base is connected to the grinding head through a rotating structure. The lower end of the conductive contact can contact the grinding wheel surface of the mill and form a conductive connection. It is also connected to the control module through a signal transmission component. The control module is used to receive the short circuit signal generated by the contact between the conductive contact and the grinding wheel surface, and then control the driving mechanism of the grinding head to stop moving downward and move upward in the opposite direction to the preset zero position.

2. The high-precision thickness control device for diamond planar grinding according to claim 1, characterized in that, The upper end of the conductive contact is provided with an insulating part, and the lower end is made of a highly conductive and wear-resistant material.

3. The high-precision thickness control device for diamond planar grinding according to claim 1, characterized in that, The elastic support is used to provide suspended support for the conductive contact when the diamond does not reach the required thickness, and to generate elastic deformation when the grinding head presses the conductive contact downward.

4. The high-precision thickness control device for diamond planar grinding according to claim 1, characterized in that, The rotating structure is centered on the equal height screw (6), includes two rotating plates, and is provided with two ball screws (5) to achieve 90-degree positioning of the rotating plate.

5. The high-precision thickness control device for diamond planar grinding according to claim 1, characterized in that, The conductive contact, elastic support, adjusting component, fixing component, positioning component, shaft component, and signal transmission assembly are assembled through a detachable connection structure.

6. The high-precision thickness control device for diamond planar grinding according to claim 4, characterized in that, The adjusting component is an adjusting screw (3), the fixing component is a fixing screw (4), the conductive contact is a conductive pin, the elastic support is a spring (2) sleeved on the conductive contact, and the control module is a 0V power line; the conductive pin (1), spring (2), adjusting screw (3), fixing screw (4), ball screw (5), equal height screw (6) and 0V power line are connected by detachable screws.

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