Grinding device for machining CD angle of ceramic chopper

Abstract

The utility model discloses a grinding device for machining a CD angle of a ceramic chopper. The grinding device comprises a base, an integrated microscope, a chopper fixing seat, a Z-axis driving device, a rotating main shaft, a grinding needle positioning shaft, a grinding needle chuck and a grinding needle, the chopper fixing seat and the Z-axis driving device are respectively arranged on the base, and the ceramic chopper is clamped on the upper end surface of the chopper fixing seat; the Z-axis driving device is provided with a rotating spindle, a grinding needle positioning shaft is arranged at the lower end of the rotating spindle, a grinding needle chuck is arranged in the grinding needle positioning shaft, the upper end of the grinding needle chuck is connected with a cylinder, and a grinding needle is fixed at the lower end; the integrated microscope is installed on the base and used for observing the relative position between the ceramic chopper and the grinding needle. The grinding device is simple in structure and convenient to operate, the ceramic chopper can be rapidly clamped, the positioning precision of the grinding needle and the inner hole of the chopper is high, and therefore the machining precision and efficiency of the CD angle of the chopper can be improved.

Description

Technical Field

[0001] This utility model relates to a grinding device for machining the CD angle of ceramic chopping tools, belonging to the field of ceramic chopping tool machining. Background Technology

[0002] A ceramic wedge, also known as a capillary wedge, is an axisymmetric ceramic tool with a vertically oriented hole, belonging to the category of precision microstructure ceramic components. Ceramic wedges are suitable for bonding and packaging circuits of silicon controlled rectifiers (SCRs), surface acoustic wave (SAW) chips, LEDs, diodes, transistors, and IC chips. In wire bonding, the ceramic wedge is used as a bonding tool, using fine metal wires (copper, gold, etc.) and heat, pressure, and ultrasonic energy to tightly bond the metal leads to the substrate pads, thereby achieving electrical interconnection between the chip and the substrate and information exchange between chips.

[0003] The CD angle (the chamfered inner hole of a ceramic chopping tool) is the area where the chopping tool comes into most frequent contact with the material and experiences the most concentrated stress during operation. Grinding the CD angle of a ceramic chopping tool involves precision machining technology, and traditional ceramic chopping tool CD angle grinding devices suffer from low machining accuracy and efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a grinding device for machining the CD angle of ceramic chopping cutters. This device uses a pneumatic chuck, which can quickly clamp the ceramic chopping cutter with high clamping accuracy. The grinding needle positioning shaft has an axial adjustment function, which can ensure that the grinding needle is coaxial with the inner hole of the ceramic chopping cutter, thereby improving the machining accuracy of the CD angle of the chopping cutter.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A grinding device for machining the CD angle of ceramic chopping tools, the grinding device includes a base, a stereo microscope, a chopping tool fixing seat, a Z-axis drive device, a rotary spindle, a grinding needle positioning shaft, a grinding needle chuck and a grinding needle;

[0007] The cleaver holder and the Z-axis drive device are respectively mounted on the base. The ceramic cleaver is clamped on the upper surface of the cleaver holder. The Z-axis drive device is equipped with a rotating spindle. The lower end of the rotating spindle is equipped with a grinding needle positioning shaft. The grinding needle positioning shaft contains a grinding needle chuck. The upper end of the grinding needle chuck is connected to a cylinder, and the lower end fixes the grinding needle. A stereomicroscope is mounted on the base to observe the relative position between the ceramic cleaver and the grinding needle.

[0008] Preferably, the chopping tool holder has X and Y direction fine adjustment functions, and the ceramic chopping tool is aligned with the grinding tool by observation and fine adjustment through a stereomicroscope.

[0009] Preferably, the grinding needle positioning shaft has a vertical positioning function to ensure that the grinding needle is coaxial with the rotating main shaft during rotation.

[0010] Preferably, the grinding needle chuck is a pull-back collet with a threaded hole at the rear for connection to the cylinder, and an open end at the front for fixing the grinding needle. The position of the grinding needle chuck relative to the positioning shaft of the grinding needle is determined by the up-and-down movement of the cylinder, thereby controlling the opening and closing state of the grinding needle chuck for disassembling and fixing the grinding needle.

[0011] Preferably, the Z-axis drive device is equipped with a servo drive system.

[0012] The beneficial effects of this utility model are:

[0013] The grinding device of this utility model adopts a pneumatic chuck, which can quickly clamp ceramic chopping tools with high clamping accuracy. The grinding needle positioning shaft has an axial adjustment function, which can ensure that the grinding needle is coaxial with the inner hole of the ceramic chopping tool, thereby improving the machining accuracy of the CD angle of the chopping tool.

[0014] The grinding device of this invention has a simple structure and is easy to operate, and can simultaneously improve the processing accuracy and efficiency of the CD angle of the chopping tool. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the grinding device of this utility model.

[0016] Figure 2 for Figure 1 Enlarged view of the area marked by the middle dashed line.

[0017] Figure label:

[0018] 1. Base; 2. Stereo microscope; 3. Cleaver holder; 4. Z-axis drive; 5. Rotary spindle; 6. Grinding needle positioning shaft; 7. Grinding needle chuck; 8. Grinding needle; 9. Ceramic cleaver; 10. Cylinder. Detailed Implementation

[0019] The specific embodiments of this utility model are described below with reference to the accompanying drawings. These specific embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0020] like Figure 1 , 2As shown, the grinding device for machining the CD angle of ceramic chopping cutters according to this utility model includes a base 1, a stereo microscope 2, a chopping cutter fixing seat 3, a Z-axis drive device 4, a rotating spindle 5, a grinding needle positioning shaft 6, a grinding needle chuck 7, and a grinding needle 8. The chopping cutter fixing seat 3 and the Z-axis drive device 4 are respectively mounted on the base 1. The ceramic chopping cutter 9 is clamped on the upper end face of the chopping cutter fixing seat 3. The Z-axis drive device 4 is equipped with a rotating spindle 5. The lower end of the rotating spindle 5 is equipped with a grinding needle positioning shaft 6. The grinding needle chuck 7 is installed inside the grinding needle positioning shaft 6. The upper end of the grinding needle chuck 7 is connected to a cylinder 10, and the lower end fixes the grinding needle 8. The stereo microscope 2 is mounted on the base 1 and is used to observe the relative position between the ceramic chopping cutter 9 and the grinding needle 8.

[0021] The chopping tool holder 3 has X and Y direction fine adjustment functions. By observing and fine-tuning through the stereo microscope 2, the ceramic chopping tool 9 can be aligned with the grinding needle 8.

[0022] The grinding needle positioning shaft 6 has a vertical (axial) positioning function, ensuring that the grinding needle 8 is perpendicular to the downward direction of the rotating spindle 5, thereby ensuring that the grinding needle 8 is coaxial with the inner hole of the ceramic chopping tool 9 during rotation, and improving the machining accuracy of the chopping tool's CD angle.

[0023] The grinding needle chuck 7 is a pull-back collet with a threaded hole at the rear for connection to the cylinder 10. Its open front end is used to fix the grinding needle 8. The position of the grinding needle chuck 7 relative to the grinding needle positioning shaft 6 is determined by the up-and-down movement of the cylinder, thus controlling the opening and closing state of the grinding needle chuck 7 for disassembling and fixing the grinding needle 8. Specifically, when the cylinder moves downwards, it disengages the grinding needle chuck from the grinding needle positioning shaft, opening the chuck and allowing the grinding needle to be disassembled; when the cylinder moves upwards, it engages with the grinding needle positioning shaft, clamping and fixing the grinding needle.

[0024] Z-axis drive unit 4 is equipped with a servo drive system, which has precise feed speed and feed control, ensuring the machining accuracy of the CD angle of the ceramic chopping tool.

[0025] The grinding device of this invention is used for machining the CD angle of a ceramic chamfering tool. The ceramic chamfering tool to be chamfered is clamped on the chamfering tool holder 3. The relative position between the ceramic chamfering tool 9 and the grinding needle 8 is observed through a stereomicroscope 2. The position of the ceramic chamfering tool 9 in the X and Y directions on the chamfering tool holder 3 is finely adjusted to align the ceramic chamfering tool 9 with the grinding needle 8. Then, the Z-axis drive device 4 is activated, and the CD angle (inner hole chamfer) of the ceramic chamfering tool is machined under the drive of the rotating spindle 5.

[0026] The above description is merely a preferred embodiment of this utility model and is not limited to the invention. It should be noted that those skilled in the art can make other equivalent improvements based on the technical teachings provided by this utility model, all of which can achieve the purpose of this utility model and should be considered within the protection scope of this utility model.

Claims

1. A lapping device for ceramic parting tool CD angle machining, characterized by, The grinding device includes a base, a stereo microscope, a cleaver fixing seat, a Z-axis drive device, a rotary spindle, a grinding needle positioning shaft, a grinding needle chuck, and a grinding needle. The cleaver holder and the Z-axis drive device are respectively mounted on the base. The ceramic cleaver is clamped on the upper surface of the cleaver holder. The Z-axis drive device is equipped with a rotating spindle. The lower end of the rotating spindle is equipped with a grinding needle positioning shaft. The grinding needle positioning shaft contains a grinding needle chuck. The upper end of the grinding needle chuck is connected to a cylinder, and the lower end fixes the grinding needle. A stereomicroscope is mounted on the base to observe the relative position between the ceramic cleaver and the grinding needle.

2. The lapping device for ceramic parting tool CD angle machining according to claim 1, characterized in that, The chopping tool holder has X and Y direction fine adjustment functions. It can be observed and finely adjusted using a stereomicroscope to align the ceramic chopping tool with the grinding tool.

3. The lapping device for ceramic parting tool CD angle machining according to claim 1, characterized in that, The grinding needle positioning shaft has an axial positioning function, ensuring that the grinding needle is coaxial with the inner hole of the ceramic chopping tool during rotation.

4. The grinding device for machining the CD angle of ceramic chopping tools according to claim 1, characterized in that, The grinding needle chuck is a pull-back collet with a threaded hole at the rear for connection to the cylinder. The open end at the front is used to fix the grinding needle. The position of the grinding needle chuck relative to the positioning shaft of the grinding needle is determined by the up-and-down movement of the cylinder, thereby controlling the opening and closing state of the grinding needle chuck for disassembling and fixing the grinding needle.

5. The grinding apparatus for machining the CD angle of ceramic chopping tools according to claim 1, characterized in that, The Z-axis drive unit is equipped with a servo drive system.

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