Drill point testing device

Abstract

The utility model provides a drill point testing device. The drill point testing device comprises a main box body, a camera shooting assembly, a first light source, a second light source, a first light path assembly, a second light path assembly and a light guide part, a detection position is arranged in the main box body, the first light source and the first light path assembly are located on the two sides of the detection position respectively, at least part of light emitted by the first light source is guided to the first surface of the light guide part through the first light path assembly, and incident light of the first surface is guided out in the preset direction through the light guide part; the second light source and the second light path assembly are located on the same side of the detection position, the second light path assembly guides light rays emitted by the second light source and reflected by the drill point to be detected in the detection position to the second surface of the light guide part, and the light guide part guides incident light of the second surface out in the preset direction. And the camera component forms an image according to the emergent light of the light guide part. According to the utility model, the length and diameter detection and wear detection of the drill point can be simultaneously realized through one camera component.

Description

TECHNICAL FIELD

[0001] The utility model relates to the test field more specifically, relate to a drill point testing device. BACKGROUND

[0002] The existing drill needle detector used by the drilling machine usually utilizes the optical fiber sensor to measure: when the optical fiber sensor senses the drill needle, the position is defined as zero point, then the lead screw for clamping the drill needle is moved, and the length and diameter of the drill needle are determined through the stroke of the lead screw. In addition, some drill needle detectors shoot the image of the end of the drill needle (i.e. drill bit), compare the image with the template image, and confirm whether the drill needle is worn.

[0003] However, the above-mentioned drill needle detector needs two or more groups of camera devices to shoot the image of the drill needle from different angles to detect different indicators of the drill needle. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is that the above-mentioned drill needle detector needs multiple camera devices to detect different indicators of the drill needle.

[0005] The technical scheme for solving the above-mentioned technical problem is to provide a drill needle testing device, which comprises a main box body, a first light source, a second light source, a first light path assembly, a second light path assembly, a light guide piece and a camera assembly. The main box body has a detection position for accommodating the drill needle to be measured, and the first light source, the second light source, the first light path assembly, the second light path assembly and the light guide piece are respectively arranged in the main box body.

[0006] The first light source and the first light path assembly are respectively located on both sides of the detection position. The first light path assembly is used for guiding at least part of the light emitted by the first light source to the first surface of the light guide piece, and guiding at least part of the incident light on the first surface of the light guide piece to a preset direction. The second light source and the second light path assembly are located on the same side of the detection position. The second light path assembly is used for guiding the light reflected by the drill needle to be measured in the detection position to the second surface of the light guide piece, and guiding at least part of the incident light on the second surface of the light guide piece to a preset direction. The camera assembly is located on the light exit path of the light guide piece and forms an image according to the light exit of the light guide piece.

[0007] As a further improvement of the utility model, the light guide piece is a reflective filter. The first light source generates light of a first wavelength when working, the second light source generates light of a second wavelength when working, and the light of the first wavelength is reflected on the surface of the reflective filter. The light of the second wavelength is transmitted on the surface of the reflective filter. The camera assembly is a color imaging device.

[0008] As a further improvement of the utility model, the first light path component includes a filter and is used for filtering light other than the first wavelength light.

[0009] As a further improvement of the utility model, the light guide member is a half-mirror, and the camera assembly is a black-and-white imaging device or a color imaging device.

[0010] As a further improvement of the utility model, the first light source and the first light path component are respectively located on the two sides of the radial direction of the drill needle to be detected in the detection position, and the second light source and the second light path component are respectively located on the same side of the axial direction of the drill needle to be detected in the detection position.

[0011] As a further improvement of the utility model, the first light source includes a plurality of first light emitters, and each first light emitter emits light perpendicular to the axial direction of the drill needle to be detected in the detection position when working, and the first light path component includes a first reflector, and the angle between the mirror surface of the first reflector and the axial direction of the drill needle to be detected is 45 degrees.

[0012] As a further improvement of the utility model, the second light source includes a plurality of second light emitters, and the plurality of second light emitters respectively emit light to different positions of the end of the drill needle to be detected in the detection position when working, and the second light path component includes a second reflector, and the angle between the mirror surface of the second reflector and the axial direction of the drill needle to be detected is 45 degrees.

[0013] As a further improvement of the utility model, the plurality of second light emitters are located on a plane perpendicular to the axial direction of the drill needle to be detected and are distributed in a ring shape, the plane where the plurality of second light emitters are located is below the end of the drill needle to be detected, and the plurality of second light emitters have a through hole in the middle, and the second reflector is located below the through hole.

[0014] As a further improvement of the utility model, the first surface of the light guide member is parallel to the mirror surface of the first reflector, and the second surface of the light guide member is parallel to the surface of the second reflector.

[0015] As a further improvement of the utility model, the drill needle testing device includes a control circuit board, and the first light source and the second light source are respectively connected with the control circuit board and emit light under the control of the control circuit board, and the camera assembly is connected with the control circuit board and takes images under the control of the control circuit board.

[0016] The utility model discloses have the following beneficial effects: through the first light path subassembly with the light of first light source is oriented to the first surface of light guide piece, through the second light path subassembly with the light of second light source is oriented to the second surface of light guide piece with the reflection of the drill needle for measurement in detection position, and according to the light imaging of light guide piece by camera subassembly, thereby through a camera subassembly can realize the length, diameter detection and wear detection of drill needle simultaneously. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the schematic diagram of the drill needle testing device provided by the utility model embodiment.

[0018] Figure 2 is the exploded structural schematic diagram of the drill needle testing device provided by the utility model embodiment.

[0019] Figure 3 is the cross-sectional structural schematic diagram of the drill needle testing device provided by the utility model embodiment.

[0020] Figure 4 is the schematic diagram of the drill needle testing device for detecting the drill needle for measurement provided by the utility model embodiment. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the following is in combination with the drawing and embodiment, and the utility model is further detailed.

[0022] As Figures 1-3 Shown, is the schematic diagram of the drill needle testing device provided by the utility model embodiment, and the drill needle testing device can be applied to PCB drill needle grinding equipment, and is used for the diameter, length and wear condition test of drill needle (for example, the drill needle for PCB punching). The drill needle testing device of the embodiment includes main box body 21, first light source 22, second light source 23, first light path subassembly, second light path subassembly, light guide piece 26 and camera subassembly 28, wherein main box body 21 has detection site 211 for accommodating the drill needle for measurement 30 in it, and first light source 22, second light source 23, first light path subassembly, second light path subassembly and light guide piece 26 are respectively installed in main box body 21. Specifically, the top of detection site 211 can have an opening, and the drill needle for measurement 30 can be vertically inserted into detection site 211 from the upper opening of detection site 211 by driving member 10 (for example, main shaft).

[0023] The first light source 22 and the second light source 23 can emit light rays of specific wavelengths or specific wavelength ranges, and the first light path assembly and the second light path assembly can change the transmission direction of the light rays and conduct the light rays to a predetermined position. The first light source 22 and the first light path assembly are located on the two sides of the detection position 211, respectively, and the light rays emitted by the first light source 22 are guided to the first surface of the light guide member 26 by the first light path assembly, that is, the light rays guided by the first light path assembly contain the "silhouette" of the drill bit 30 to be detected. The second light source 23 and the second light path assembly are located on the same side of the detection position 211, and the light rays emitted by the second light source 23 are guided to the second surface of the light guide member 26 by the second light path assembly, that is, the light rays guided by the second light path assembly contain the surface image of the drill bit 30 to be detected in the detection position. The light guide member 26 can reflect part of the light rays irradiated onto the first surface (the remaining part of the light rays penetrates), and at the same time, part of the light rays irradiated onto the second surface of the light guide member 26 penetrates (the remaining part of the light rays reflects), that is, either the first surface or the second surface of the light guide member 26 contains the light rays emitted by the first light path assembly and the light rays emitted by the second light path assembly.

[0024] The camera assembly 28 is located on the light emission path of the light guide member 26 and forms an image according to the light emission of the light guide member 26. Specifically, the main box body 21 can have a light transmission hole 215, and the light guide member 26 is located inside the light transmission hole 215, for example, the first surface of the light guide member 26 faces the light transmission hole 215. The camera assembly 28 can include a lens 281 and a camera 282 (the camera has a photosensitive chip and the like), wherein the lens 281 is located between the camera 282 and the light guide member 26, and can adjust the focal length, light transmission amount and the like of the imaging to ensure the imaging effect of the camera 282. The lens 281 and the camera 282 can adopt the conventional structure in the art, which will not be described here. The image formed by the camera assembly 28 contains the images of the drill bit to be detected in multiple directions, so that the length, diameter and wear condition of the drill bit to be detected can be judged by analyzing the image (for example, compared with the template image).

[0025] The drill bit testing device can guide the light rays emitted by the first light source 22 to the first surface of the light guide member 26 through the first light path assembly, guide the light rays emitted by the second light source 23 to the second surface of the light guide member 26 through the second light path assembly, and form an image according to the light emission of the light guide member 26 by the camera assembly 28, so that only one camera assembly 28 can realize the length, diameter and wear detection of the drill bit at the same time.

[0026] In an embodiment of the present application, the drill bit testing device further comprises a control circuit board (not shown in the figure), and the first light source 22 and the second light source 23 are connected with the control circuit board and emit light under the control of the control circuit board, and the camera assembly 28 is also connected with the control circuit board and takes images under the control of the control circuit board. In particular, an analysis module can also be integrated on the control circuit board, which can analyze the images formed by the camera assembly 28 to obtain the length, diameter and wear condition of the drill bit 30 to be tested. Of course, in actual application, the camera device can also be connected to a separate host computer, and the images formed by the camera assembly 28 are analyzed through the host computer.

[0027] In an embodiment of the present application, the light guide 26 is a reflective filter. Correspondingly, the first light source 22 generates light of the first wavelength when working, the second light source 23 generates light of the second wavelength when working, and the light of the first wavelength is reflected on the surface of the reflective filter (i.e. the light of the first wavelength cannot penetrate the light guide 26), and the light of the second wavelength is transmitted on the surface of the reflective filter (i.e. the light of the second wavelength will not be reflected on the surface of the light guide 26), so that the light guided to the two surfaces of the light guide 26 by the first light path assembly and the second light path assembly will be emitted in the same direction. And, in order to make the light of the first wavelength and the light of the second wavelength be imaged, the camera assembly 28 is a color imaging device. For example, the light guide 26 can adopt a red-reflecting blue-transmitting mirror, and correspondingly, the first light source 22 generates red light when working, and the second light source 23 generates blue light when working. In actual application, the first light source 22, the second light source 23 and the light guide 26 can be selected.

[0028] In particular, when the length, diameter and wear detection of the drill bit 30 to be tested are performed by using the drill bit testing device, the first light source 22 and the second light source 23 can be controlled (for example, through the control circuit board) to emit light at the same time, and the camera assembly 28 can be controlled to take images, and then the images formed by the camera assembly 28 are separated, that is, the side image and the end image of the drill bit 30 to be tested are formed by different colors, and then the length, diameter and wear detection of the drill bit 30 to be tested are performed.

[0029] In an embodiment of the present application, the light guide 26 can also adopt a half-reflective half-transmissive lens, at this time, the first light source 22 and the second light source 23 can emit light of the same wavelength when working, and the camera assembly 28 can adopt a black-and-white imaging device or a color imaging device. In this scheme, the first light source 22 and the second light source 23 can be controlled (for example, through the control circuit board) to emit light of the same wavelength at the same time, and the camera assembly 28 can be controlled to take images, and then the images formed by the camera assembly 28 are separated, that is, the side image and the end image of the drill bit 30 to be tested are formed by different colors, and then the length, diameter and wear detection of the drill bit 30 to be tested are performed.

[0030] The first light source 22 and the second light source 23 emit light in different time sequences, and the camera assembly 28 is controlled to capture images (at this time, the camera assembly 28 can form black-and-white images), and then the images formed by the camera assembly 28 at different times are analyzed, and the length, diameter and wear condition of the drill needle 30 to be measured are obtained.

[0031] In an embodiment of the utility model, the first light source 22 and the first light path assembly are respectively located at the two sides of the radial direction of the drill needle 30 to be measured in the detection position 211, that is, the light emitted by the first light path assembly is related to the length and diameter of the drill needle 30 to be measured, and the image generated by the light guide member 26 and the camera assembly 28 is the side profile image of the drill needle 30 to be measured, and by analyzing the side profile image (for example, by a certain scaling calculation), the length and diameter of the drill needle 30 to be measured can be confirmed.

[0032] The second light source 23 and the second light path assembly are respectively located at the same side of the axial direction of the drill needle 30 to be measured in the detection position 211, for example, the second light source 23 and the second light path assembly can be respectively located below the drill bit of the drill needle 30 to be measured, so that the light emitted by the second light path assembly is related to the shape of the end (that is, the drill bit) of the drill needle 30 to be measured, and the image generated by the light guide member 26 and the camera assembly 28 is the drill bit surface image of the drill needle 30 to be measured, and by analyzing the drill bit surface image (for example, by comparing with a template), the wear condition of the drill needle 30 to be measured can be confirmed.

[0033] Particularly, when the light guide member 26 adopts a reflective filter, the first light path assembly further includes a filter 24 and is used to filter out light other than the light (that is, the first wavelength light) emitted by the first light source 22. By the filter 24, the influence of external stray light on the side image of the drill needle 30 to be measured can be reduced, thereby providing the accuracy of the length and diameter detection of the drill needle 30 to be measured.

[0034] In an embodiment of the utility model, the first light source 22 includes a plurality of first light emitting bodies, for example, the first light emitting bodies can be LED lamp beads integrated into the same printed circuit board, and the LED lamp beads can emit light under the driving of the printed circuit board. Each first light emitting body emits light perpendicular to the axial direction of the drill needle 30 to be measured when working, that is, the plane where the LED lamp beads are located is parallel to the axial direction of the drill needle 30 to be measured, as shown in FIG. 2. Figure 4 Correspondingly, the first light path assembly includes a first reflector 25, and the angle between the mirror surface of the first reflector 25 and the axial direction of the drill needle 30 to be measured is 45°, that is, the mirror surface of the first reflector 25 faces the first light source 22 and the angle between the mirror surface of the first reflector 25 and the light emitted by the first light source 22 is 45° or close to 45°, so that the first reflector 25 can generate light parallel to the axial direction of the drill needle 30 to be measured and irradiate the first surface of the light guide member 26.

[0035] In an embodiment of the utility model, the second light source 23 includes a plurality of second light emitters, for example, the second light emitters can be LED lamp beads integrated into the same printed circuit board, and the LED lamp beads can emit light under the driving of the printed circuit board. The plurality of second light emitters respectively emit light to different positions of the end part (i.e. drill bit) of the drill needle 30 in the detection position 211 during work, for example, the angle between the light emitted by each second light emitter and the axial direction of the drill needle 30 is between 30-60°, so that the end part of the drill needle 30 is illuminated. Correspondingly, the second light path assembly includes a second reflector 27, and the angle between the mirror surface of the second reflector 27 and the axial direction of the drill needle 30 is 45°, that is, the mirror surface of the second reflector 27 faces the end part of the drill needle 30, and the angle between the mirror surface of the second reflector 27 and the light reflected by the end part of the drill needle 30 is 45° or close to 45°, so that the second reflector 27 can generate light perpendicular to the axial direction of the drill needle 30 and irradiate the second surface of the light guide piece 26.

[0036] Specifically, as shown in Figure 2 、 Figure 4 , in the second light source 23, a plurality of second light emitters are located on a plane perpendicular to the axial direction of the drill needle 30 and are distributed in a ring shape, and the plane where the plurality of second light emitters are located is located below the end part of the drill needle 30, for example, the distance from the end part of the drill needle 30 to the plane is the same as the distance from the second light emitters to the projection of the drill needle 30 on the plane. The plurality of second light emitters have a through hole 232 in the middle, and the second reflector 27 is located below the through hole 232. Through the above structure, the imaging effect can be ensured while the structure of the entire device is relatively compact, thereby reducing the overall volume.

[0037] In particular, the first surface of the light guide piece 26 is parallel to the mirror surface of the first reflector 25, and at the same time, the second surface of the light guide piece 26 is parallel to the surface of the second reflector 27. Through the above structure, the imaging effect of the side part and the imaging effect of the end part of the drill needle 30 can be considered, and the light path layout is facilitated.

[0038] In an embodiment of the utility model, the drill needle testing device further includes a bottom plate 29, and the main box body 21 and the camera assembly 28 are respectively fixed on the bottom plate 29. In particular, the bottom plate 29 can have a plurality of supporting legs below for height adjustment.

[0039] In addition, the main box body 21 has mounting holes 212, 213, 214 corresponding to the positions of the first reflector 25, the second reflector 27 and the light guide 26, respectively, and the first reflector 25, the second reflector 27 and the light guide 26 can be inserted into the main box body 21 through the mounting holes 212, 213, 214. This structure greatly facilitates the assembly of the first reflector 25, the second reflector 27 and the light guide 26. At the same time, in order to reduce the interference of stray light, in specific use, after the first reflector 25, the second reflector 27 and the light guide 26 are installed in place, the above-mentioned mounting holes 212, 213, 214 can be closed using a light shield plate or the like, or the main box body 21 can be directly placed in another box body.

[0040] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A drill bit testing device, characterized by, The application relates to a main box body, a first light source, a second light source, a first light path component, a second light path component, a light guide and a camera component, wherein the main box body is provided with a detection position for accommodating a drill needle to be detected, and the first light source, the second light source, the first light path component, the second light path component and the light guide are arranged in the main box body. The first light source and the first light path component are located on the two sides of the detection position, the first light path component is used for guiding at least part of the light emitted by the first light source to a first surface of the light guide, and the light guide guides at least part of the incident light on the first surface to a preset direction; the second light source and the second light path component are located on the same side of the detection position, the second light path component is used for guiding the light reflected by the drill needle to be detected in the detection position to a second surface of the light guide, and the light guide guides at least part of the incident light on the second surface to a preset direction; and the camera component is located on the light exit path of the light guide and forms an image according to the light exit of the light guide.

2. The drill bit testing device of claim 1, wherein, The light guide is a reflective filter, the first light source generates light of a first wavelength when working, the second light source generates light of a second wavelength when working, the light of the first wavelength is reflected on the surface of the reflective filter, and the light of the second wavelength is transmitted on the surface of the reflective filter; and the camera component is a color imaging device.

3. The drill bit testing device of claim 2, wherein, The first light path component comprises a filter and is used for filtering light other than the light of the first wavelength.

4. The drill bit testing device of claim 1, wherein, The light guide is a half-reflective and half-transmissive lens, and the camera component is a black-and-white imaging device or a color imaging device.

5. The drill bit testing device of any one of claims 1-4, wherein, The first light source and the first light path component are respectively located on the two sides of the radial direction of the drill needle to be detected in the detection position; and the second light source and the second light path component are respectively located on the same side of the axial direction of the drill needle to be detected in the detection position.

6. The drill bit testing device of claim 5, wherein, The first light source comprises a plurality of first light emitters, each of which emits light perpendicular to the axial direction of the drill needle to be detected when working; and the first light path component comprises a first reflector, and the angle between the mirror surface of the first reflector and the axial direction of the drill needle to be detected is 45 degrees.

7. The drill bit testing device of claim 6, wherein, The second light source comprises a plurality of second light emitters, each of which emits light to different positions of the end of the drill needle to be detected in the detection position when working; and the second light path component comprises a second reflector, and the angle between the mirror surface of the second reflector and the axial direction of the drill needle to be detected is 45 degrees.

8. The drill bit testing device of claim 7, wherein, The plurality of second light emitters are located on a plane perpendicular to the axial direction of the drill needle to be detected and are distributed in a ring shape; the plane where the plurality of second light emitters are located is below the end of the drill needle to be detected, and the plurality of second light emitters have a through hole in the middle, and the second reflector is located below the through hole.

9. The drill bit testing device of claim 8, wherein, The first surface of the light guide is parallel to the mirror surface of the first reflector, and the second surface of the light guide is parallel to the surface of the second reflector.

10. The drill bit testing device of any one of claims 1-9, wherein, The drill bit testing device comprises a control circuit board, and the first light source and the second light source are connected with the control circuit board and emit light under the control of the control circuit board, and the camera assembly is connected with the control circuit board and takes images under the control of the control circuit board.

Images