Pin testing machine

Abstract

The utility model provides a kind of tube foot detection machine, including bottom plate and the detection site and installation site being set to bottom plate, the bottom plate is covered with box, the detection site, the installation site are located in the box, the box side is equipped with with the detection for internal communication material mouth, for component to take out or put into the detection site, fixed jig and light supplementing lamp are equipped in the detection site, the light supplementing lamp is used to the component tube foot on the fixed jig is irradiated, CCD camera is equipped in the installation site, the CCD camera is used to detect the component tube foot on the fixed jig, reduce the stray light that enters the detection site from outside, to improve the accuracy of the tube foot detection of CCD camera, to realize can better detect good product and defective product.

Description

Technical Field

[0001] This utility model belongs to the field of electronic component manufacturing, and specifically relates to a pin testing machine. Background Technology

[0002] Electronic components are the building blocks of small machines and instruments. They are typically composed of several parts, and pins, also called leads, are the connections between the internal circuitry of electronic components and external circuitry. Currently, after the manufacturing process of pin-based products is completed, the number and spacing of pins of electronic components are mainly detected by inspection devices such as CCD cameras. Backlighting is usually achieved by supplementing light to the pins to improve the detection accuracy of the inspection device. However, there is a lack of mechanisms to shield against external stray light, making the detection process susceptible to the influence of stray light and resulting in reduced accuracy. Utility Model Content

[0003] (1) Technical problems to be solved This invention provides a pin testing machine, which aims to solve the problem that the accuracy of testing is reduced due to the influence of external stray light during testing.

[0004] (2) Technical solution This utility model provides a pin inspection machine, including a base plate and inspection positions and mounting positions disposed on the base plate. The base plate is covered with a housing, and the inspection positions and mounting positions are both located inside the housing. A material inlet communicating with the inspection position is provided on one side of the housing for taking out or placing components into the inspection position. A fixing fixture and a supplementary light are provided in the inspection position. The supplementary light is used to illuminate the pins of the components on the fixing fixture. A CCD camera is provided in the mounting position for inspecting the pins of the components on the fixing fixture.

[0005] Preferably, the housing includes a mounting box and a light-shielding box, the mounting box covers the outside of the mounting position, the light-shielding box covers the outside of the detection position, and the material inlet is located on one side of the light-shielding box.

[0006] Preferably, the light-shielding box includes a light-shielding plate and a light-shielding cover, the light-shielding plate is located on one side of the detection position, and one side of the light-shielding cover is rotatably connected to the light-shielding plate.

[0007] Preferably, the light shield has an extension plate on the side near the light shield, the extension plate has a guide groove, a fixing member is movably connected in the guide groove, the side wall of the mounting box has a fixing hole, after the fixing member is fixedly installed between the fixing member and the fixing hole, the extension plate is clamped and fixed between the fixing member and the mounting box.

[0008] Preferably, the mounting box has a camera port for use with a CCD camera on the side near the detection position.

[0009] Preferably, the number of mounting positions is at least two sets, with the two mounting positions arranged on both sides of the detection position, and the number of CCD cameras and the number of mounting boxes corresponds to the number of mounting positions.

[0010] Preferably, the enclosure further includes a support box, and the mounting box and the light-shielding box are both installed on the top surface of the support box.

[0011] Preferably, the mounting position is provided with an adjustment mechanism for adjusting the position of the CCD camera.

[0012] Preferably, the adjustment mechanism includes a slide block and a slide rail. The slide block is used to mount the CCD camera, and the slide block is provided with an adjustment handle for adjusting the position of the slide block on the slide rail.

[0013] Preferably, it also includes a control module for displaying and controlling the detection of the pins of the CCD camera detection element.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: In use, electronic components are placed through the feed inlet onto a fixed fixture within the inspection position of the chamber. A supplementary light illuminates the pins of the electronic components, and a CCD camera inspects each pin to ensure they are aligned and level. By covering the inspection position with the chamber, stray light entering the inspection area is reduced, thereby improving the accuracy of the CCD camera's pin inspection and enabling better detection of good and defective products. Attached Figure Description

[0015] Figure 1 The diagram shows a structural schematic of some embodiments of this utility model.

[0016] Figure 2 This is a schematic diagram of the internal structure of the box in some embodiments of this utility model.

[0017] Figure 3 This is a diagram showing the usage state of the light shield in some embodiments of this utility model.

[0018] Figure 4 This is a schematic diagram of the structure in some other embodiments of the present invention.

[0019] Figure 5 This is a schematic diagram of the internal structure of the box in some other embodiments of this utility model.

[0020] Figure 6 This is a diagram showing the usage state of the light shield in some other embodiments of this utility model.

[0021] Figure label: Base plate 1, control module 10, material inlet 11, detection position 2, fixing fixture 21, supplementary light 22, mounting position 3, CCD camera 31, adjustment mechanism 32, slide base 321, slide rail 322, adjustment handle 323, housing 4, mounting box 41, fixing hole 411, camera port 412, light shield 42, light shield plate 421, light shield cover 422, extension plate 423, guide groove 424, fixing piece 43, support box 44. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] like Figures 1-6 As shown, this utility model provides a pin inspection machine, including a base plate 1 and inspection positions 2 and mounting positions 3 disposed on the base plate 1. The base plate 1 is covered with a housing 4. The inspection positions 2 and the mounting positions 3 are both located inside the housing 4. A material inlet 11 communicating with the inspection position is provided on one side of the housing 4 for taking out or placing components into the inspection position 2. The inspection position 2 is provided with a fixing fixture 21 and a supplementary light 22. The supplementary light 22 is used to illuminate the component pins on the fixing fixture 21. A CCD camera 31 is provided in the mounting position 3. The CCD camera 31 is used to inspect the component pins on the fixing fixture 21.

[0024] Furthermore, such as Figures 1-6 As shown, the housing 4 includes a mounting box 41 and a light-shielding box 42. The mounting box 41 covers the outside of the mounting position 3, and the light-shielding box 42 covers the outside of the detection position 2. The material inlet 11 is located on one side of the light-shielding box 42. The light-shielding box 42 includes a light-shielding plate 421 and a light-shielding cover 422. The light-shielding plate 421 is located on one side of the detection position 2, and one side of the light-shielding cover 422 is rotatably connected to the light-shielding plate 421. The light-shielding cover 422 has an extension plate 423 on the side near the light-shielding cover 422. The extension plate 423 has a guide groove 424, and a fixing member 43 is movably connected in the guide groove 424. The side wall of the mounting box 41 has a fixing hole 411. After the fixing member 43 is fixedly installed between the fixing hole 411, the extension plate 423 is clamped and fixed between the fixing member 43 and the mounting box 41.

[0025] Specifically, such as Figures 1-6As shown, the light-shielding box 42 of the housing 4 provides light protection for the detection position 2. The light-shielding plate 421 of the light-shielding box 42 is located on one side of the detection position 2 and is perpendicular to the base plate 1. One side of the light-shielding cover 422 is rotatably connected to the side of the light-shielding plate 421 closest to the detection position 2. The light-shielding cover 422 and the light-shielding plate 421 can be rotatably connected via a hinge, allowing the light-shielding cover 422 to swing in a fan shape towards the top of the detection position 2 and away from the detection position 2. In this embodiment, the feed inlet 11 is formed between the light-shielding cover 422 and the base plate 1, with the opening direction of the feed inlet 11 away from the light-shielding plate 421. In other embodiments, the light-shielding cover 422 can be connected to the base plate 1. The light shield 422 is rotated and connected by a hinge, allowing it to swing in a fan shape towards the side of the detection position 2 and away from the detection position 2. At this time, the material inlet 11 is formed between the light shield 422 and the light shield 421, with the opening direction of the material inlet 11 facing upward. The advantage of setting the light shield 421 to be movable is that during the transportation process of the pin inspection machine, by moving and swinging the light shield 421 towards the direction of covering the detection position 2, the light shield 421 is made flush with the surface of the mounting box 41. During use, the light shield 421 can remain flush with the surface of the mounting box 41, and can also swing away from the detection position 2 to enlarge the diameter of the material inlet 11, making it easier to put electronic components into the fixing fixture 21 in the detection position 2.

[0026] It is worth noting that, such as Figures 1-6 As shown, in some embodiments, the light shield 422 can stop and maintain its posture by relying on the damping of the hinge itself after the swing stops. In other embodiments, before the light shield 422 swings, the fixing member 43 is first pulled out from the fixing hole 411 of the mounting box 41. Taking the fixing hole 411 as a screw hole and the fixing member 43 and the fixing hole 411 as an example, the fixing member 43 is pulled out from the fixing hole 411 by thread, so that the light shield 422 can swing along the hinge. During the swing, the screw part of the fixing member 43 moves in the guide groove 424. After adjusting to a suitable angle, the fixing member 43 is screwed into the fixing hole 411 until the cap of the fixing member 43 and the side wall of the mounting groove are clamped to the extension plate 423 of the light shield 422, so as to achieve the fixing effect of the light shield 422.

[0027] Furthermore, such as Figures 1-6 As shown, the mounting box 41 has a camera port 412 for cooperating with the CCD camera 31 on the side near the detection position 2. The number of mounting positions 3 is at least two sets, with two mounting positions 3 arranged on both sides of the detection position 2. The number of CCD cameras 31 and the number of mounting boxes 41 correspond to the number of mounting positions 3.

[0028] Specifically, such as Figures 1-6As shown, based on the above, when the electronic component is placed on the fixture 21, the pins on both sides of the electronic component face the mounting position 3 respectively. After supplementary lighting by the supplementary light 22, the pins of the electronic component are detected by the CCD camera 31. It is worth noting that the mounting box 41 covers the CCD camera 31, and the camera of the CCD camera 31 does not exceed the camera port 412, so that the CCD camera 31 can only receive the light that passes through the camera port 412 and enters the mounting box 41. By setting the light shield 42, stray light passing through the camera port 412 and being captured by the CCD camera 31 can be reduced, thereby improving the detection accuracy. After the supplementary light 22 illuminates the pins of the electronic component, the light passes through the camera port 412 and is captured and detected by the CCD camera 31. In addition, more mounting positions 3, CCD cameras 31, and mounting boxes 41 can be set according to the pin distribution direction of the electronic component to achieve faster detection of the pins of the electronic component, or only the pins on both sides of the electronic component can be detected at one time.

[0029] Furthermore, the housing 4 also includes a support box 44, and the mounting box 41 and the light-shielding box 42 are both installed on the top surface of the support box 44.

[0030] In other embodiments, the support box 44 can raise the height of the bottom surface of the detection position 2, thereby reducing the area of ​​the feed inlet 11 and further reducing stray light entering the detection position 2 from the outside.

[0031] Furthermore, such as Figures 1-6 As shown, the mounting position 3 is provided with an adjustment mechanism 32 for adjusting the position of the CCD camera 31. The adjustment mechanism 32 includes a slide 321 and a slide rail 322. The slide 321 is used to mount the CCD camera 31, and the slide 321 is provided with an adjustment handle 323 for adjusting the position of the slide 321 on the slide rail 322.

[0032] Specifically, such as Figures 1-6As shown, since the electronic components are of different sizes, in order for the CCD camera 31 to detect the various pins on the electronic components, the position of the CCD camera 31 can be adjusted by the adjustment mechanism 32 to adjust the lateral field of view of the CCD camera 31. The CCD camera 31 is mounted on the slide 321, and the position adjustment is achieved by the slide 321 sliding on the slide rail 322. In some embodiments, a rack can be set on the slide rail 322. A gear that meshes with the rack is set at the output end of the adjustment handle 323. During adjustment, the gear is driven to rotate by twisting the adjustment handle 323, so that the gear meshes and rolls on the rack, thereby making the slide 321 slide on the slide rail 322. The adjustment accuracy is high, and a certain damping can be provided by the meshing between the gear and the rack, so that the slide 321 can be better kept stable after it reaches the designated position. The position adjustment achieved by the meshing and rolling between the gear and the rack is the prior art, and will not be described in detail here.

[0033] Furthermore, it also includes a control module 10 for displaying and controlling the detection of the pins of the detection element of the CCD camera 31.

[0034] Specifically, such as Figures 1-6 As shown, the CCD camera 31 is connected to the control module 10. In some embodiments, the control module 10 is mounted on the base plate 1, making the pin inspection machine an integrated structure. Alternatively, the control module 10 can be set to be independent of other structures and transmit signals through connecting lines, which facilitates the transportation of the equipment.

[0035] The following is a detailed explanation of the working principle of this utility model; In use, the electronic components are placed through the feed port 11 onto the fixture 21 in the detection position 2 inside the housing 4. The pins of the electronic components are illuminated by the supplementary light 22. The CCD camera 31 is used to check whether each pin of the electronic components is neat and located on the same horizontal plane. By setting the housing 4 to cover the outside of the detection position 2, stray light entering the detection position 2 from the outside can be reduced during detection, thereby improving the accuracy of the CCD camera 31 in detecting the pins, so as to better detect good products and defective products.

[0036] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A pin testing machine, characterized in that: The device includes a base plate (1) and a detection position (2) and a mounting position (3) set on the base plate (1). The base plate (1) is covered with a box (4). The detection position (2) and the mounting position (3) are both located inside the box (4). The box (4) has a material port (11) on one side that communicates with the detection position, which is used to take out or put the component into the detection position (2). The detection position (2) is equipped with a fixing fixture (21) and a supplementary light (22). The supplementary light (22) is used to irradiate the component pins on the fixing fixture (21). The mounting position (3) is equipped with a CCD camera (31), which is used to detect the component pins on the fixing fixture (21).

2. The pin testing machine according to claim 1, characterized in that: The housing (4) includes a mounting box (41) and a light-shielding box (42). The mounting box (41) covers the outside of the mounting position (3), and the light-shielding box (42) covers the outside of the detection position (2). The material inlet (11) is located on one side of the light-shielding box (42).

3. The pin testing machine according to claim 2, characterized in that: The light-shielding box (42) includes a light-shielding plate (421) and a light-shielding cover (422). The light-shielding plate (421) is located on one side of the detection position (2), and one side of the light-shielding cover (422) is rotatably connected to the light-shielding plate (421).

4. The pin testing machine according to claim 3, characterized in that: The light shield (422) has an extension plate (423) on one side near the light shield (422). The extension plate (423) has a guide groove (424). A fixing member (43) is movably connected in the guide groove (424). The mounting box (41) has a fixing hole (411) on its side wall. After the fixing member (43) is fixedly installed between the fixing hole (411), the extension plate (423) is clamped and fixed between the fixing member (43) and the mounting box (41).

5. The pin testing machine according to claim 2, characterized in that: The mounting box (41) has a camera port (412) for use with the CCD camera (31) on the side near the detection position (2).

6. The pin testing machine according to claim 5, characterized in that: The number of mounting positions (3) is at least two sets, and the two mounting positions (3) are set on both sides of the detection position (2). The number of CCD cameras (31) and mounting boxes (41) corresponds to the number of mounting positions (3).

7. The pin testing machine according to claim 2, characterized in that: The housing (4) also includes a support box (44), and the mounting box (41) and the light-shielding box (42) are both installed on the top surface of the support box (44).

8. The pin testing machine according to claim 1, characterized in that: The mounting position (3) is provided with an adjustment mechanism (32) for adjusting the position of the CCD camera (31).

9. The pin testing machine according to claim 8, characterized in that: The adjustment mechanism (32) includes a slide (321) and a slide rail (322). The slide (321) is used to mount the CCD camera (31). The slide (321) is provided with an adjustment handle (323) for adjusting the position of the slide (321) on the slide rail (322).

10. The pin testing machine according to claim 1, characterized in that: It also includes a control module (10) for displaying and controlling the detection of the pins of the detection element of the CCD camera (31).

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