TWM494051U - Measurement equipment of micro drill bit - Google Patents

Description

Micro-drill measuring device

The novel patent relates to a measuring device, in particular to a measuring device for a micro-drilling needle with a rotatable angle.

In recent years, the product life cycle has shortened and the trend of manufacturing technology has developed, and the competition conditions of various enterprises have become increasingly stringent. In order to pursue sustainable development and development, the company introduces emerging technologies to reduce costs and improve quality in terms of product design, manufacturing, and quality control, so that enterprises can maintain market competitiveness, especially quality as a certification indicator on the market. .

At present, in the automated optical measuring equipment, the technical aspects of measuring the contour curve of the micro-drill finished product can be generally divided into two categories: non-destructive and destructive, and most of the manufacturers still use the destructive contour curve measurement. technology. Generally, the micro-needle measuring device used in the conventional method uses a grinder to destructively grind the drill portion of the micro-drill to a cross-sectional position of a certain end face, and then uses a tool microscope by an experienced measuring person ( Toolmaker's Measuring microscope) measures the core thickness of the end face. Wherein, the measuring personnel is to obtain the measurement data of the contours of different angles, for example, the contour curve measured by the cross section orthogonal to the spiral groove. However, since the feeding methods of the automated optical measuring equipment are mainly in the X-axis and Y-axis directions, the vertical end faces of the micro-drills can only be ground. If it is necessary to obtain the measurement data of the contours of different angles, it is necessary to The micro-drill is tilted at an angle for grinding. However, the current measuring device has no design of the rotating mechanism, so the accuracy and accuracy of the angled profile measurement are slightly different. Foot, and the operator also has difficulty in grinding angle, easy to make mistakes, resulting in inconsistent measurement quality and greater variability, and thus can not improve the overall measurement efficiency.

Therefore, how to make the micro-drill measuring device can carry out contour measurement at different angles, and has accurate calibration mode and measurement data, which is the target of the research and development of the industry.

In view of the above problems, the novel patent provides a micro-drill measuring device, which solves the problem that the conventional micro-drill measuring system has no rotating mechanism, and the design can only grind the vertical end surface of the micro-drill. Therefore, the accuracy and accuracy of the angle measurement are slightly insufficient, and the operator has difficulty in grinding the angle.

The present invention provides a micro-drill measuring device for destructively measuring a micro-drill. The measuring device comprises a grinding mechanism for grinding an end surface of the micro drill needle; an image capturing mechanism comprising a school image capturing component and a measuring image component; a transfer mechanism comprising a first pitch a component and a second pitching component, the second pitching component is movably mounted on the first pitching component and reciprocally displaced relative to the first pitching component along a first axis; a rotating mechanism is provided with a fixture The assembly, the clamp assembly is configured to sandwich the micro drill needle, the rotating mechanism is movably mounted on the second distance adjustment assembly, and is reciprocally displaced relative to the second distance adjustment assembly along a second axial direction, the rotation mechanism having an axis. The first axial direction and the second axial direction are perpendicular to each other, and the rotating mechanism drives the clamp assembly to rotate relative to the grinding mechanism with the axis as the rotating shaft.

When the clamp assembly is moved to a grinding position, the micro drill needle is inclined at an angle with respect to the grinding mechanism and corresponds to the calibration image capturing assembly. When the clamp assembly moves to a measuring position, the micro drill is adapted to measure Image capture component.

The effect of the novel is that it is convenient for the user to change the setting of the micro drill. The angle is ground to obtain contour curves at different angles to improve the accuracy and accuracy of the measurement results, and to make the user easy to operate and control to increase the usability.

100‧‧‧Measurement equipment

110‧‧‧ machine

120‧‧‧Transportation mechanism

121‧‧‧First pitch assembly

122‧‧‧Second pitch assembly

123‧‧‧ fine-tuning feed components

130‧‧‧Rotating mechanism

131‧‧‧Axis

132‧‧‧Clamp assembly

1321‧‧‧ support

1322‧‧‧ pads

1323‧‧ spring

140‧‧‧ grinding mechanism

141‧‧ ‧motor

142‧‧‧Transmission components

143‧‧‧ grinding wheel

150‧‧‧Image agency

151‧‧‧ School location imaging components

1511‧‧‧First light source

1512‧‧‧ first shot

1513‧‧‧First Image Sensor

152‧‧‧Measurement imaging components

1521‧‧‧second light source

1522‧‧‧second lens

1523‧‧‧Second image sensor

200‧‧‧Micro Drill

210‧‧‧Contour curve

220‧‧‧section to be tested

230‧‧‧ center axis

240‧‧‧Drill end face

250‧‧‧Spiral groove

A‧‧‧first light

B‧‧‧second light

Θ‧‧‧ angle

Figure 1 is a perspective view of a measuring device according to the present invention.

Figure 2 is a perspective view showing the rotation of the rotating mechanism according to the present invention at an angle.

Figure 3 is a perspective view of the clamp assembly and micro-drill according to the present invention.

Figure 4 is a top plan view of the clamp assembly in accordance with the present invention in a grinding position.

Figure 5 is a top plan view of the clamp assembly in accordance with the present invention in a measured position.

Figure 6 is a schematic view of the end face of the microneedle according to the present invention tilted at an angle relative to the grinding wheel.

Fig. 7 is a schematic view showing the image processing of the section to be tested of the micro-drill according to the present invention.

Figure 8 is a schematic diagram of the measurement and analysis of the contour curve of the micro-drill according to the present invention.

Please refer to Figures 1 to 5. Figure 1 is a perspective view of a measuring device according to the present invention. Figure 2 is a perspective view showing the rotation of the rotating mechanism according to the present invention at an angle. Figure 3 is a perspective view of the clamp assembly and micro-drill according to the present invention. Figure 4 is a top plan view of the clamp assembly in accordance with the present invention in a grinding position. Figure 5 is a top plan view of the clamp assembly in accordance with the present invention in a measured position. For convenience of explanation, X, Y, and Z indicated in the figure are the X-axis direction, the Y-axis direction, and the Z-axis direction, respectively, and the X-axis direction, the Y-axis direction, and the Z-axis direction are perpendicular to each other.

The micro-drill measuring device 100 of the present invention comprises a transfer mechanism 120, a The rotating mechanism 130, a grinding mechanism 140 and an image capturing mechanism 150. The transfer mechanism 120, the polishing mechanism 140, and the image capturing mechanism 150 are respectively disposed on a machine table 110, and the rotating mechanism 130 is disposed on the transfer mechanism 120 to provide a function of moving and rotating the object to be tested.

The transfer mechanism 120 of the present invention includes a first pitch adjustment component 121, a second pitch adjustment component 122, and a fine adjustment feed component 123. The second distance adjustment component 122 is movably mounted on the first distance adjustment component 121. The rotating mechanism 130 is provided with a clamp assembly 132 for clamping a micro drill 200, and the rotating mechanism 130 is movably mounted on the second shifting assembly 122. The fine adjustment feed assembly 123 is mounted on the rotating mechanism 130 for driving the clamp assembly 132 to fine-tune the movement on the rotating mechanism 130.

The first pitch adjustment component 121 is mounted on the machine table 110 along a first axial direction (ie, the X-axis direction), and the second distance adjustment component 122 is along a second axial direction (ie, the Y-axis direction). ) is mounted on the first pitch adjustment component 121. Similarly, the clamp assembly 132 and the fine adjustment feed assembly 123 are respectively disposed on the rotating mechanism 130 along the second axial direction (ie, the Y-axis direction). The above components may be assembled by components such as a ball lead screw, a linear slide rail or a stepping motor according to requirements or designs, but not limited thereto, only the above components are required to be in the first axial direction or the second Linear displacement is sufficient in the axial direction, and even if the second pitch adjustment assembly 122 is reciprocally displaced along the first axial direction on the first distance adjustment assembly 121, the rotation mechanism 130 causes the clamp assembly 132 to move along the second adjustment assembly 123. The second axial reciprocating displacement.

It should be noted that the first pitch adjustment component 121 and the second distance adjustment component 122 of the embodiment are mainly used for moving during the measurement process of the micro drill needle 200, and the fine adjustment feed component 123 can be It is convenient for the user to finely adjust the position of the micro drill needle 200 to accurately move to a preset position to reduce the generation of error values, thereby improving the overall measurement efficiency.

In addition, the rotating mechanism 130 of the present invention has a shaft center 131, and the shaft center 131 is perpendicular to the first axial direction (ie, the X-axis direction) and the second axial direction (ie, the Y-axis direction), and the rotating mechanism 130 is a rotating platform for driving the clamp assembly 132 to rotate relative to the grinding mechanism 140 with the axial center 131 as a rotating shaft, and the micro drill needle 200 clamped on the clamp assembly 132 can be inclined by an angle θ with respect to the grinding mechanism 140. In order to grind the micro drill 200 at different angles. The grinding mechanism 140 of the present invention includes a motor 141, a transmission assembly 142 and a grinding wheel 143. The motor 141 is used to drive the transmission assembly 142 and drive the grinding wheel 133 to perform a rotary motion to grind the micro drill 200.

In addition, in order to have a good clamping effect, the clamp assembly 132 of the present invention includes a support base 1321, a spacer 1322 and a spring 1323. The support block 1321 has an accommodating space, the spacer 1322 is mounted on the support base 1321, and the spring 1323 is installed in the accommodating space of the support base 1321, and the opposite ends of the spring 1323 are respectively supported by the support. Between the seat 1321 and the spacer 1322, a cushioning force is provided. When the micro drill 200 is clamped on the clamp assembly 132, a portion of the drill shank 200 is abutted against and supported on the spacer 1322. Therefore, when the micro drill 200 is ground, the vibration stress generated by the grinding can be greatly reduced, which not only makes the micro drill 200 less likely to be broken during grinding, but also extends the service life of the clamp assembly 132, as shown in FIG.

The image taking mechanism 150 of the present invention includes a school image capturing component 151 and a measuring image component 152. The image capturing component 151 includes a first light source 1511, a first lens 1512, and a first image sensor 1513. The first light source 1511 emits a first light A toward the first axial direction (ie, the X-axis direction), and the first lens 1512 receives the first light A, and the first image sensor 1513 can receive the first through the first lens 1512. A light A and output a first image.

The measurement imaging component 152 includes a second light source 1521, a second lens 1522 and a second image sensor 1523. The second light source 1521 emits a second light B toward the second axial direction (ie, the Y-axis direction) and is irradiated to one of the micro-drills 200 to be measured. The second light B is reflected to the second lens 1522 by the cross section 220 to be measured, and the second image is output by the second image sensor 1523 according to the reflected light.

The first image sensor 1513 and the second image sensor 1523 include, but are not limited to, a complementary CMOS camera or a CCD camera. The first lens 1512 and the second lens 1522 can respectively select a fixed focus group mirror and an automatic zoom lens. The main purpose of the automatic zoom lens is to increase the detection range of the object to be tested, such as the micro drill needle 200, and to match the size thereof. The magnification is taken to make the image of the section 220 to be measured to be more clear.

The measuring device 100 of the present invention is electrically coupled to a computer control system (not shown), wherein the computer control system refers to, but not limited to, a desktop computer, an industrial computer, or a notebook computer. A computer device that provides data calculations. The control, the rotation angle and the feedback of the optical rule signals of the components of the transfer mechanism 120, the rotating mechanism 130 or the polishing mechanism 140 can be performed by the computer control system to drive the transfer mechanism 120 and the rotating mechanism 130 to move and rotate. The calibration position can also be driven by the grinding mechanism 140 to enable the micro-drill measurement device 100 to achieve an automated measurement function.

In addition, the computer control system can serve as a communication channel between the user and the measuring device 100, and the purpose is to transmit the image capturing information of the image capturing mechanism 150, and provide the calibration calculation program and the image calculation program, which can be distinguished as correction and Measure the two parts. Therefore, the computer control system can be used on the one hand to receive the position parameter input by the user and the measurement related setting value for the quantity. The measurement system 100 adjusts according to the actual measurement requirements, and on the other hand can provide the operation processing of the first image and the second image.

The mode of operation and flow of the micro-needle measuring device 100 will be described below. The micro-drill 200 to be inspected is clamped on the clamp assembly 132, and the components of the transfer mechanism 120 and the rotating mechanism 130 are returned to an initial position, so that the micro-drill 200 can be easily mounted on the clamp assembly 132. The actual initial position can be adjusted according to actual needs, and is not limited to this. Thereafter, the user can input at least one position parameter using the computer control system to set the position and angle of the section 220 to be tested of the micro drill 200.

The computer control system controls the first distance adjustment component 121 and the second distance adjustment component 122 to move to a grinding position according to the position parameter value, and controls the rotation mechanism 130 to drive the clamp assembly 121 to rotate, so that the micro drill needle 200 is opposite to the grinding mechanism. The 140 is tilted by an angle θ setting, and the fine adjustment feed assembly 123 is used to fine tune the distance of the clamp assembly 132 in the second axial direction (i.e., the Y-axis direction) to finely adjust the distance between the micro-drill 200 and the grinding wheel 143.

The tilt angle θ is determined according to different contour curves 210 to be measured by the micro drill 200, and the embodiment is exemplified by an inclination angle θ perpendicular to the spiral groove 250 of the micro drill 200. And the micro-drilling needle 200 is tilted by the rotation mechanism 130 to the angle θ, and is ground by the grinding mechanism 140 to the section 220 to be tested after changing the angle to achieve the effect of changing the angle of the grinding, thereby obtaining the contour curve 210 of different angles. As shown in Figure 6.

When the school image capturing component 151 senses that the micro drill needle 200 is located within the image capturing range, the computer control system controls the school image capturing component 151 to capture the first image, and outputs the first image to the computer control system for performing a Analysis of the school's calculation program.

Further explain the analysis process of the school location calculation program. When the computer control system receives the first image, the first image is subjected to the calibration analysis, and the first image is subjected to boundary scan to obtain the drill end face 240 of the micro drill 200 tilted by an angle θ and the grinding mechanism 140. The end face of the grinding wheel 143 is simultaneously calculated and simultaneously measured for a plurality of horizontal image distances between the two end faces. Next, the length of each longitudinal distance is compared to obtain a value, that is, the pitch of the two end faces (the unit is the actual length physical quantity), and the tilt angle θ of the micro drill 200 can also be corrected. The above-mentioned calibration calculation program can achieve the purpose of calibration, so that not only the error value can be reduced, but also the accuracy and efficiency of the measurement can be improved.

In contrast, when the equivalent image capturing component 152 senses that the micro burs 200 are located within the image capturing range, the computer control system controls the image capturing component 152 to capture the second image and output the second image to the computer control. The system performs an analysis of an image calculation program. It should be noted that the measurement imaging component 152 in this embodiment also needs to perform correction, such as automatic circle correction or curve correction, before capturing the image. In addition, in the micro-drill 200 orientation, the computer control system can also use the image focus algorithm to construct the sharpness curve map, which has the coordinate position corresponding to the maximum clear value of the image, and can be used as the reference basis for the image positioning and fixed focus position.

Further, the analysis process of the image calculation program is performed. When the computer control system receives the second image, the image is analyzed by the second image, and the feature of the portion to be tested 220 of the second image is processed by the image, and the limited edge is collected. Information, curve fitting, and seeking relevant parameters in the fitting to measure the parameter value of the contour curve 210 of the section 220 to be measured after changing the angle, or by the Least Square Circle Method The optimum circle is taken out, and the core thickness value of the section to be tested 220 whose angle is not changed is measured. Wherein, before measuring the contour curve 210 or the core thickness value, an image processing action, such as brightness, is performed on the image of the section 220 to be measured. (Brightness), Contrast, Gamma, Thresholding, Morphological operation, etc., to avoid noise or background interference on the image to ensure the image of the section to be tested 220 The integrity, and thus the accurate contour curve 210 parameter values, as shown in Figures 7 and 8.

It can be clearly seen from the description of the embodiment of the present invention that the measuring device for the micro-drilling needle of the present invention solves the conventional measuring system by increasing the design of the rotating mechanism 130, and has no design of the rotating mechanism. The vertical end face of the micro bur is ground, so the accuracy and accuracy of the angle measurement are slightly insufficient, and the operator has difficulty in grinding the angle.

Therefore, compared with the prior art, the measuring device of the micro-drilling needle of the present invention can not only facilitate the user to change the setting angle of the micro-drilling needle for grinding, thereby obtaining contour curves of different angles, thereby improving the measurement result. The accuracy and precision also make it easy for users to operate and control to increase usability. In addition, the clamp assembly also has a cushioning design, in addition to having a good clamping effect, the vibration stress generated by the grinding can be greatly reduced, so that the micro drill needle is not easily broken during grinding, thereby prolonging the service life of the clamp assembly.

100‧‧‧Measurement equipment

110‧‧‧ machine

120‧‧‧Transportation mechanism

121‧‧‧First pitch assembly

122‧‧‧Second pitch assembly

123‧‧‧ fine-tuning feed components

130‧‧‧Rotating mechanism

140‧‧‧ grinding mechanism

150‧‧‧Image agency

Claims (9)

A micro-drill measuring device for destructively measuring a micro-drilling needle, the measuring device comprising: a grinding mechanism for grinding an end surface of the micro-drilling needle; an image taking mechanism comprising a school position An image capturing component and a measuring image component; a transfer mechanism comprising a first pitching component and a second pitching component, wherein the second pitching component is movably mounted on the first pitching component, and Reciprocatingly displaced relative to the first distance adjusting component along a first axial direction; and a rotating mechanism provided with a clamp assembly for clamping the micro drill needle, the rotating mechanism being movably mounted to the second a shifting assembly reciprocally displaced relative to the second pitching assembly along a second axis, the rotating mechanism having an axis perpendicular to the first axis and the second axis, the rotation The mechanism drives the clamp assembly to rotate relative to the grinding mechanism with the shaft as a rotating shaft; wherein, when the clamp assembly moves to a grinding position, the micro drill needle is inclined at an angle with respect to the grinding mechanism, and corresponds to The school location image capture component, when When the assembly has moved to a measuring position, which should be measured for the micro drill in the amount of image capturing devices. The measuring device of the micro-drill according to claim 1, wherein the image capturing component comprises a first light source, a first lens and a first image sensor, the first light source along the first The micro-needle is axially irradiated, and the first lens corresponds to the micro-drill, and the first image sensor captures an image of the micro-drill relative to the grinding mechanism in the second axial direction. The measuring device of the micro-drill according to claim 1, wherein the grinding mechanism grinds the end surface of the micro-drill to a cross-section to be measured, and the image-receiving image captures an image of the cross-section to be tested. A contour curve of the micro drill is obtained according to the image. The measuring device of the micro-drill according to claim 3, wherein the measuring image component comprises a second light source, a second lens and a second image sensor, the second light source along the second The second lens corresponds to the cross section to be tested, and the second image sensor captures an image of the cross section to be tested. The micro-drill measuring device according to claim 3, wherein the micro-drill has a spiral groove, and the cross-section to be measured is perpendicular to the spiral groove. The measuring device of the micro-drill according to claim 1, wherein the grinding mechanism comprises a motor, a transmission component and a grinding wheel, the motor drives the transmission component, and the transmission component drives the grinding wheel to rotate, the grinding wheel corresponding to The end face of the micro drill. The measuring device of the micro-drill according to claim 1, wherein the clamp assembly comprises a support base, a spacer and a spring, the spacer is disposed on the support base, and the spring is disposed on the support base and the support Between the blocks, when the micro-drill is clamped on the clamp assembly, the micro-drill is abutted against the spacer. The micro-needle measuring device of claim 1, wherein the transfer mechanism further comprises a fine-tuning feed assembly for driving the clamp assembly to fine-tune the displacement to adjust the distance of the micro-drill relative to the grinding mechanism. . The measuring device for a micro-drill according to claim 1, further comprising a computer control system for integrating the grinding mechanism, the image capturing mechanism, the transferring mechanism and the rotating mechanism, and for inputting by a user .