Combined detection light source for screw inspection

Abstract

This utility model discloses a combined detection light source for screw inspection, relating to the field of detection light source technology. The combined detection light source for screw inspection includes a first light-emitting component and a second light-emitting component; the first light-emitting component includes a first base and a first light-emitting element; the second light-emitting component includes a second base, a second light-emitting element, a slider, and a reflecting prism; a first opening is connected to the top wall of a second cavity and to the lower end of a light-emitting channel; a sliding groove and a mounting groove are respectively disposed on opposite horizontal side walls of the second cavity; the slider is slidably disposed in the sliding groove; the reflecting prism is connected to the slider; the second light-emitting element is positioned facing the reflecting surface of the reflecting prism. The horizontal position of the reflecting prism can be adjusted by sliding the slider, thereby adjusting the light path of the reflected light and adapting to different screw workpieces to be inspected within the first cavity. This provides high adaptability and ensures effective detection illumination.

Description

Technical Field

[0001] This utility model relates to the field of detection light source technology, and in particular to a combined detection light source for detecting screws. Background Technology

[0002] In the field of machine vision, when inspecting the appearance of precision structures such as screws, it is usually necessary to use a detection light source composed of a light-emitting structure and a prism structure to reflect light. However, because the overall structure of screws is small, different screws have different sizes and different threads, but the position of the prism structure of a general detection light source is usually fixed, resulting in a fixed illumination angle of the detection light source. When it is necessary to inspect screws of different sizes, it is impossible to guarantee the focusing effect, which affects the clear imaging effect and results in poor adaptability. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned defects in the prior art and provide a combined detection light source for detecting screws, which can detect different screw workpieces, has high adaptability, and can ensure the effect of detection illumination.

[0004] To achieve the above objectives, this utility model provides a combined detection light source for detecting screws. The combined detection light source for detecting screws includes a first light-emitting component and a second light-emitting component. The first light-emitting component includes a first base and a first light-emitting element. The first base is provided with a light-emitting port, a first cavity, and a light-emitting channel. The light-emitting port is located at the top of the first base and communicates with the top wall of the first cavity. The light-emitting channel is located below the first cavity and extends vertically. The upper end of the light-emitting channel communicates with the bottom wall of the first cavity. The top wall of the first cavity is an upwardly concave semi-circular surface. The first light-emitting element is disposed within the first cavity and faces the top wall of the first cavity. The second light-emitting component includes a second base and a second light-emitting element. The system comprises an optical element, a slider, and a reflecting prism; a second base is disposed below a first base; the second base has a first opening, a second cavity, a sliding groove, and a mounting groove; the first opening is disposed at the top of the second base and communicates with the top wall of the second cavity and the lower end of the light emission channel; the sliding groove and the mounting groove are respectively disposed on opposite side walls of the second cavity in the horizontal direction; the slider is slidably disposed in the sliding groove in the horizontal direction; the reflecting prism is connected to the slider; the reflecting surface of the reflecting prism is at least partially located in the second cavity; the second light-emitting element is disposed in the mounting groove and faces the reflecting surface of the reflecting prism, and the reflecting prism can reflect the light emitted by the second light-emitting element into the first cavity.

[0005] Furthermore, two of each of the sliding grooves and mounting slots are provided; the two sliding grooves are respectively a first sliding groove and a second sliding groove; the first sliding groove and one mounting slot are provided on opposite side walls of the second cavity along the first horizontal direction, and the first sliding groove extends along the first horizontal direction; the second sliding groove and the other mounting slot are provided on opposite side walls of the second cavity along the second horizontal direction, and the second sliding groove extends along the second horizontal direction; two sliders are provided, one slider is slidably disposed in the first sliding groove along the first horizontal direction, and the other slider is slidably disposed in the second sliding groove along the second horizontal direction; two reflecting prisms are provided, and are respectively connected to the two sliders; two second light-emitting elements are provided, and are respectively disposed in the two mounting slots, and are respectively opposite to the reflecting surfaces of the two reflecting prisms; wherein, the first horizontal direction and the second horizontal direction are perpendicular to each other.

[0006] Furthermore, a first limiting groove is provided on the bottom wall of the slide groove, and the first limiting groove extends along the horizontal direction; a limiting block is provided at the bottom end of the slider, and the limiting block is slidably disposed in the first limiting groove.

[0007] Furthermore, the slider includes a base plate and side plates; the limiting block is disposed at the bottom end of the base plate, and the reflecting prism is disposed on the base plate; two side plates are provided, both of which are disposed at the top end of the base plate; the two side plates are disposed opposite to each other and spaced apart, and respectively abut against the two sides of the reflecting prism.

[0008] Furthermore, the second light-emitting component also includes a mounting block and a first connector; the bottom of the second base is provided with a second limiting groove, the second limiting groove extends along the horizontal direction, the upper part of the second limiting groove communicates with the lower part of the first limiting groove, and the cross-section of the second limiting groove is larger than the cross-section of the first limiting groove; the mounting block is slidably disposed in the second limiting groove and abuts against the top wall of the second limiting groove, and the first connector is located in the second limiting groove and is detachably connected to the mounting block and the base plate.

[0009] Furthermore, the mounting block is provided with a first connecting hole, and the base plate is provided with a second connecting hole, with the first connecting hole and the second connecting hole being disposed opposite to each other; the first connector is detachably inserted through the first connecting hole and the second connecting hole to connect the mounting block and the base plate.

[0010] Furthermore, a second opening is provided on the bottom wall of the second cavity; the second opening is provided through the vertical direction, and the second opening, the first opening, the light emission channel and the light emission port are all arranged opposite each other in the vertical direction.

[0011] Furthermore, the first light-emitting element is annular; the first light-emitting element is disposed on the bottom wall of the first cavity and surrounds the upper end of the light-emitting channel; the first light-emitting element is disposed in the vertical direction to avoid the light-emitting channel and the light-emitting port.

[0012] Furthermore, it also includes a second connector; the first base body is provided with a third connecting hole, and the second base body is provided with a fourth connecting hole, the third connecting hole and the fourth connecting hole being disposed opposite to each other; the second connector is detachably inserted through the third connecting hole and the fourth connecting hole to detachably connect the first base body and the second base body.

[0013] Furthermore, the second light-emitting element includes a light-emitting structure, a diffuser plate, and a third base; the third base is provided with a third opening and a receiving cavity; the third opening is located at the side end of the third base and communicates with the receiving cavity, and is oriented towards the reflecting prism; the light-emitting structure is located inside the receiving cavity; the diffuser plate is located at the third opening.

[0014] Compared with the prior art, the present invention has the following advantages: In the embodiment of the present invention, the screw workpiece to be tested can be placed in the first cavity of the first base. The light emitted by the first light-emitting element shines on the top wall of the first cavity, and the light can be reflected to the screw workpiece to be tested through the top wall surface of the first cavity, so as to provide an illumination effect for the screw workpiece to be tested. Since the top wall surface of the first cavity is an upwardly concave semi-circular surface, it can achieve the effect of uniformly reflecting the light onto the screw workpiece to be tested, ensuring the illumination effect; the second light-emitting element is located in the second cavity, and the light emitted by the second light-emitting element shines on the reflecting prism. After being placed on the first cavity, the reflecting prism reflects the light emitted by the second light-emitting element through the second cavity, the second opening, and the light exit channel, so as to reflect it into the first cavity. This allows the light to illuminate the screw workpiece to be inspected located in the first cavity. The reflecting prism is mounted on the slider, which can move horizontally in the groove. The groove limits the sliding position of the slider. The horizontal position of the reflecting prism can be adjusted by sliding the slider, thereby adjusting the light path of the reflected light and adapting it to different screw workpieces to be inspected in the first cavity. This high adaptability ensures the effectiveness of the inspection illumination. Attached Figure Description

[0015] To more clearly illustrate the technology in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the combined detection light source for detecting screws according to the present invention;

[0017] Figure 2 This is a cross-sectional view of the combined detection light source for detecting screws according to this utility model;

[0018] Figure 3 This is a schematic diagram of the slider of the combined detection light source for detecting screws according to the present invention.

[0019] Figure 4 This is a schematic diagram of the structure of the second base of the combined detection light source for detecting screws according to this utility model;

[0020] Figure 5 for Figure 4 A schematic diagram of the second base of the combined detection light source for detecting screws according to this utility model from another perspective;

[0021] Figure 6 for Figure 1 This is a structural schematic diagram of the combined detection light source for detecting screws from another perspective.

[0022] Reference numerals: First light-emitting component 100; First base 110; Light outlet 111; First cavity 112; Light outlet channel 113; First light-emitting element 120; Second light-emitting component 200; Second base 210; First opening 211; Second cavity 212; Slide groove 213; Mounting groove 214; First limiting groove 215; Second limiting groove 216; Second opening 217; First slide groove 221; Second slide groove 222; Slider 230; Limiting block 231; Base plate 232; Side plate 233; Second connecting hole 234; Reflecting prism 240; Second light-emitting element 250; Light-emitting structure 251; Diffuser plate 252; Third base 253; Third opening 254; Receiving cavity 255; Mounting block 260; First connecting hole 261. Detailed Implementation

[0023] The technology of this embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiment is one embodiment of the present invention, and not all embodiments thereof. Based on this embodiment of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0025] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second", such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0026] like Figures 1 to 6As shown, the combined detection light source for detecting screws according to an embodiment of the present invention includes a first light-emitting component 100 and a second light-emitting component 200. The first light-emitting component 100 includes a first base 110 and a first light-emitting element 120. The first base 110 is provided with a light-emitting port 111, a first cavity 112, and a light-emitting channel 113. The light-emitting port 111 is located at the top of the first base 110 and communicates with the top wall of the first cavity 112. The light-emitting channel 113 is located below the first cavity 112 and extends vertically. The upper end of the light-emitting channel 113 communicates with the bottom wall of the first cavity 112. The top wall of the first cavity 112 is an upwardly concave semi-circular surface. The first light-emitting element 120 is disposed inside the first cavity 112 and faces the top wall of the first cavity 112. The second light-emitting component 200 includes a second base 210 and a second light-emitting element 25. 0. Slider 230 and reflecting prism 240; Second base 210 is disposed below first base 110; Second base 210 is provided with first opening 211, second cavity 212, sliding groove 213 and mounting groove 214; First opening 211 is disposed at the top of second base 210 and communicates with the top wall of second cavity 212 and communicates with the lower end of light emission channel 113; Sliding groove 213 and mounting groove 214 are respectively disposed on opposite side walls of second cavity 212 in the horizontal direction; Slider 230 is slidably disposed in sliding groove 213 in the horizontal direction; Reflecting prism 240 is connected to slider 230; Reflecting surface of reflecting prism 240 is at least partially located in second cavity 212; Second light-emitting element 250 is disposed in mounting groove 214 and faces the reflecting surface of reflecting prism 240, and reflecting prism 240 can reflect the light emitted by second light-emitting element 250 into first cavity 112.

[0027] In this embodiment of the invention, the screw workpiece to be tested can be placed in the first cavity 112 of the first base 110. The light emitted by the first light-emitting element 120 shines on the top wall of the first cavity 112, and the light can be reflected to the screw workpiece through the top wall surface of the first cavity 112 to provide illumination for the screw workpiece. Since the top wall surface of the first cavity 112 is an upwardly concave semi-circular surface, it can achieve the effect of uniformly reflecting the light onto the screw workpiece to be tested, ensuring the illumination effect. The second light-emitting element 250 is located in the second cavity 212. After the light emitted by the second light-emitting element 250 shines on the reflecting prism 240, the reflecting prism 240 can reflect the light emitted by the second light-emitting element 250. The light emitted from the 0 is reflected through the second cavity 212, the second opening 217, and the light exit channel 113, and reflected back into the first cavity 112, thereby illuminating the screw workpiece to be inspected located in the first cavity 112. The reflecting prism 240 is mounted on the slider 230, which can move horizontally within the groove 213. The groove 213 limits the sliding position of the slider 230. The horizontal position of the reflecting prism 240 can be adjusted by sliding the slider 230, thereby adjusting the light path of the reflected light and adapting it to different screw workpieces to be inspected within the first cavity 112. This high adaptability ensures the effectiveness of the inspection illumination.

[0028] Specifically, the reflective surface of the reflective prism 240 is at least partially located inside the second cavity 212, and this part of the reflective surface is vertically opposite to the top wall of the first cavity 112, so that after the light emitted by the second light-emitting element 250 shines on the reflective surface of the reflective prism 240, the light can be reflected to the top wall of the first cavity 112, and then reflected to the screw workpiece to be tested.

[0029] Reference Figure 4 and Figure 5In some embodiments of this utility model, two slide grooves 213 and two mounting grooves 214 are provided; the two slide grooves 213 are respectively a first slide groove 221 and a second slide groove 222; the first slide groove 221 and a mounting groove 214 are provided on opposite side walls of the second cavity 212 along the first horizontal direction, and the first slide groove 221 extends along the first horizontal direction; the second slide groove 222 and another mounting groove 214 are provided on opposite side walls of the second cavity 212 along the second horizontal direction, and the second slide groove 222 extends along the second horizontal direction. The system is configured with two sliders 230, one of which is slidably disposed in the first groove 221 along the first horizontal direction, and the other slider 230 is slidably disposed in the second groove 222 along the second horizontal direction; two reflecting prisms 240 are configured and connected to the two sliders 230 respectively; two second light-emitting elements 250 are configured and disposed in the two mounting slots 214 respectively, and are respectively disposed opposite to the reflecting surfaces of the two reflecting prisms 240; wherein the first horizontal direction and the second horizontal direction are perpendicular to each other.

[0030] Two sliding grooves 213 are provided to accommodate two sliders 230 and a reflecting prism 240. The first sliding groove 221 extends along a first horizontal direction, allowing the slider 230 located in the first sliding groove 221 to move along the first horizontal direction to adjust the position of the reflecting prism 240 connected to the slider 230 in the first horizontal direction. The second sliding groove 222 extends along a second horizontal direction, allowing the slider 230 located in the second sliding groove 222 to move along the second horizontal direction to adjust the position of the reflecting prism 240 connected to the slider 230 in the second horizontal direction. Two second light-emitting elements 250 are respectively provided in two mounting grooves 214. By providing two second light-emitting elements 250, light can be irradiated onto the reflective surfaces of the two reflecting prisms 240 respectively, so that the light is reflected into the first cavity 112. Therefore, the positions of the two sliders 230 can be adjusted independently to adjust the positions of the two reflecting prisms 240, further improving adaptability.

[0031] Specifically, the reflecting prism 240 is a triangular prism, and the reflecting surface of the reflecting prism 240 is an inclined surface that is tilted to the horizontal direction.

[0032] Reference Figure 2 , Figure 4 and Figure 5 In some embodiments of this utility model, a first limiting groove 215 is provided on the bottom wall of the slide groove 213, and the first limiting groove 215 extends in the horizontal direction; a limiting block 231 is provided at the bottom end of the slider 230, and the limiting block 231 is slidably disposed in the first limiting groove 215.

[0033] By setting the slide groove 213, the sliding direction of the slider 230 can be limited. By setting the first limiting groove 215, the sliding distance of the slider 230 in the slide groove 213 can be limited, so as to achieve the limiting effect and avoid the slider 230 from moving excessively and colliding with other structures.

[0034] Reference Figure 3 In some embodiments of this utility model, the slider 230 includes a base plate 232 and a side plate 233; a limiting block 231 is disposed at the bottom end of the base plate 232, and a reflecting prism 240 is disposed on the base plate 232; two side plates 233 are disposed, both of which are disposed at the top end of the base plate 232; the two side plates 233 are disposed opposite to each other and spaced apart, and respectively abut against the two sides of the reflecting prism 240.

[0035] The reflecting prism 240 can be placed on the top surface of the base plate 232. The two side plates 233 respectively abut against the two sides of the reflecting prism 240. Through the friction between the side plates 233 and the reflecting prism 240, the position of the reflecting prism 240 on the base plate 232 can be limited, reducing the degree of accidental slippage of the reflecting prism 240 on the base plate 232 and improving the stability of the reflected light.

[0036] Specifically, the reflecting prism 240 is a triangular prism, and the side plate 233 is triangular in shape to achieve a fitting effect.

[0037] Reference Figure 2 , Figure 5 and Figure 6 In some embodiments of this utility model, the second light-emitting component 200 further includes a mounting block 260 and a first connector; the bottom of the second base 210 is provided with a second limiting groove 216, which extends horizontally and is connected to the lower part of the first limiting groove 215. The cross-section of the second limiting groove 216 is larger than that of the first limiting groove 215; the mounting block 260 is slidably disposed in the second limiting groove 216 and abuts against the top wall of the second limiting groove 216; the first connector is located in the second limiting groove 216 and is detachably connected to the mounting block 260 and the base plate 232.

[0038] The mounting block 260 is disposed within the second limiting groove 216 and abuts against the top wall of the second limiting groove 216. After the mounting block 260 and the base plate 232 are connected to each other by the first connector, the position of the mounting block 260 and the second seat 210 can be limited by the friction between the mounting block 260 and the top wall of the second limiting groove 216, thereby limiting the position of the slider 230 relative to the second seat 210, achieving a fixing effect and preventing the slider 230 from accidentally shifting.

[0039] The first connector is located within the second limiting groove 216, allowing it to sink into the second limiting groove 216, thus eliminating the risk of collision with other external structures, such as assembly line fixtures, and improving installation compatibility.

[0040] Reference Figure 2 In some embodiments of this utility model, the mounting block 260 is provided with a first connecting hole 261, and the base plate 232 is provided with a second connecting hole 234. The first connecting hole 261 and the second connecting hole 234 are arranged opposite to each other. The first connector is detachably inserted through the first connecting hole 261 and the second connecting hole 234 to connect the mounting block 260 and the base plate 232.

[0041] The mounting block 260 can move within the second limiting groove 216, so that the first connecting hole 261 on the mounting block 260 can be opposite to the second connecting hole 234 of the base plate 232. The first connector can be a screw structure, and the first connecting hole 261 and the second connecting hole 234 can be threaded connecting holes.

[0042] Reference Figure 2 and Figure 4 In some embodiments of this utility model, a second opening 217 is provided on the bottom wall of the second cavity 212; the second opening 217 is arranged through in the vertical direction, and the second opening 217, the first opening 211, the light emission channel 113 and the light emission port 111 are all arranged opposite each other in the vertical direction.

[0043] The camera inspection module can inspect the bolt workpiece to be inspected located in the first cavity 112 through the second opening 217. The second opening 217, the first opening 211, the light output channel 113 and the light output port 111 are all arranged opposite each other in the vertical direction to ensure the smoothness of the light path and to ensure the lighting and inspection effects.

[0044] Reference Figure 2 In some embodiments of this utility model, the first light-emitting element 120 is annular; the first light-emitting element 120 is disposed on the bottom wall of the first cavity 112 and surrounds the upper end of the light-emitting channel 113, so as to enable large inner diameter and high uniformity of light emission, and realize 360° no dead angle illumination of the screw workpiece to be inspected.

[0045] Specifically, the first light-emitting element 120 can be an LED array light-emitting structure 251.

[0046] The first light-emitting element 120 is arranged to avoid obstructing the light reflected from the reflective prism 240 in the vertical direction, thereby ensuring the lighting effect.

[0047] In some embodiments of this utility model, a second connector is also included; the first base 110 is provided with a third connecting hole, and the second base 210 is provided with a fourth connecting hole, with the third connecting hole and the fourth connecting hole being disposed opposite to each other; the second connector is detachably inserted through the third connecting hole and the fourth connecting hole to detachably connect the first base 110 and the second base 210.

[0048] By providing a second connector for detachable connection, the first base 110 and the second base 210 can be detachably connected. When the internal structure of the first light-emitting component 100 or the second light-emitting component 200 is damaged, the second connector can be removed so that the first base 110 and the second base 210 can be separated from each other, thereby facilitating the maintenance of the first light-emitting component 100 and the second light-emitting component 200.

[0049] Reference Figure 2 In some embodiments of this utility model, the second light-emitting element 250 includes a light-emitting structure 251, a diffuser plate 252, and a third seat 253; the third seat 253 is provided with a third opening 254 and a receiving cavity 255; the third opening 254 is provided at the side end of the third seat 253 and communicates with the receiving cavity 255, and is positioned towards the reflecting prism 240; the light-emitting structure 251 is provided inside the receiving cavity 255; and the diffuser plate 252 is provided at the third opening 254.

[0050] The light-emitting structure 251 can emit light, and the light emitted by the light-emitting structure 251 can be emitted outward through the diffuser plate 252. The third opening 254 is arranged opposite to the reflective prism 240, so that the light emitted by the light-emitting structure 251 can shine on the reflective prism 240.

[0051] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A combined detection light source for detecting screws, characterized in that include: The first light-emitting component includes a first base and a first light-emitting element; the first base is provided with a light-emitting port, a first cavity, and a light-emitting channel; the light-emitting port is located at the top of the first base and communicates with the top wall of the first cavity; the light-emitting channel is located below the first cavity and extends vertically; the upper end of the light-emitting channel communicates with the bottom wall of the first cavity; the top wall of the first cavity is an upwardly concave semi-circular surface; the first light-emitting element is disposed inside the first cavity and faces the top wall of the first cavity; The second light-emitting component includes a second base, a second light-emitting element, a slider, and a reflective prism; the second base is disposed below the first base; the second base has a first opening, a second cavity, a sliding groove, and a mounting groove; the first opening is disposed at the top of the second base and communicates with the top wall of the second cavity and with the lower end of the light-emitting channel; the sliding groove and the mounting groove are respectively disposed on the two opposite side walls of the second cavity in the horizontal direction; The slider is slidably disposed in the groove along the horizontal direction; the reflecting prism is connected to the slider; the reflecting surface of the reflecting prism is at least partially located in the second cavity; the second light-emitting element is disposed in the mounting groove and is positioned facing the reflecting surface of the reflecting prism, and the reflecting prism is capable of reflecting the light emitted by the second light-emitting element into the first cavity.

2. The combined detection light source for detecting a screw according to claim 1, wherein Two sliding grooves and two mounting grooves are provided; the two sliding grooves are a first sliding groove and a second sliding groove; the first sliding groove and one mounting groove are provided on opposite side walls of the second cavity along the first horizontal direction, and the first sliding groove extends along the first horizontal direction; the second sliding groove and the other mounting groove are provided on opposite side walls of the second cavity along the second horizontal direction, and the second sliding groove extends along the second horizontal direction; two sliders are provided, one slider is slidably disposed in the first sliding groove along the first horizontal direction, and the other slider is slidably disposed in the second sliding groove along the second horizontal direction; two reflecting prisms are provided, and are respectively connected to the two sliders; two second light-emitting elements are provided, and are respectively disposed in the two mounting grooves, and are respectively opposite to the reflecting surfaces of the two reflecting prisms; wherein, the first horizontal direction and the second horizontal direction are perpendicular to each other.

3. The combined detection light source for detecting a screw according to claim 1, wherein A first limiting groove is provided on the bottom wall of the slide groove, and the first limiting groove extends along the horizontal direction; a limiting block is provided at the bottom end of the slider, and the limiting block is slidably disposed in the first limiting groove.

4. The combined detection light source for detecting a screw according to claim 3, wherein The slider includes a base plate and side plates; the limiting block is disposed at the bottom end of the base plate, and the reflecting prism is disposed on the base plate; there are two side plates, both of which are disposed at the top end of the base plate; the two side plates are disposed opposite to each other and spaced apart, and respectively abut against the two sides of the reflecting prism.

5. The combined detection light source for detecting a screw according to claim 3, wherein The second light-emitting component further includes a mounting block and a first connector; the bottom of the second base is provided with a second limiting groove, which extends along the horizontal direction, and the upper part of the second limiting groove communicates with the lower part of the first limiting groove. The cross-section of the second limiting groove is larger than the cross-section of the first limiting groove. The mounting block is slidably disposed in the second limiting groove and abuts against the top wall of the second limiting groove. The first connector is located in the second limiting groove and is detachably connected to the mounting block and the base plate.

6. The combined detection light source for detecting a screw according to claim 5, wherein The mounting block is provided with a first connecting hole, and the base plate is provided with a second connecting hole, with the first connecting hole and the second connecting hole being arranged opposite to each other; the first connector is detachably inserted through the first connecting hole and the second connecting hole to connect the mounting block and the base plate.

7. The combined detection light source for detecting a screw according to claim 1, wherein The bottom wall of the second cavity is provided with a second opening; the second opening is provided through the vertical direction, and the second opening, the first opening, the light emission channel and the light emission port are all provided opposite to each other in the vertical direction.

8. The combined detection light source for detecting a screw according to claim 1, wherein The first light-emitting element is ring-shaped; the first light-emitting element is disposed on the bottom wall of the first cavity and surrounds the upper end of the light-emitting channel; the first light-emitting element is disposed in the vertical direction to avoid the light-emitting channel and the light-emitting port.

9. The combined detection light source for detecting a screw according to claim 1, wherein, It also includes a second connector; the first base is provided with a third connecting hole, and the second base is provided with a fourth connecting hole, the third connecting hole and the fourth connecting hole being disposed opposite to each other; the second connector is detachably inserted through the third connecting hole and the fourth connecting hole to detachably connect the first base and the second base.

10. The combined detection light source for detecting a screw according to claim 1, wherein, The second light-emitting element includes a light-emitting structure, a diffuser plate, and a third base; the third base is provided with a third opening and a receiving cavity; the third opening is provided at the side end of the third base and communicates with the receiving cavity, and is oriented towards the reflecting prism; the light-emitting structure is disposed in the receiving cavity; the diffuser plate is disposed at the third opening.

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