Hole checking machine for circuit board

Abstract

The utility model relates to the technical field of hole checking machines, in particular to a hole checking machine for a circuit board, which comprises a rack, a conveying belt is arranged inside the upper part of the rack, and a detection head is arranged on the upper surface of the rack; the adjusting assembly comprises a stand column and an adjusting plate, the stand column is fixedly connected to the upper surface of the rack, the adjusting plate is fixedly connected to the upper surface of the detection head, a positioning plug pin and a positioning assembly penetrate through the position between the stand column and the adjusting plate, and the positioning assembly is located above the conveying belt. According to the utility model, the height of the detection head can be adjusted through arrangement of the adjusting assembly, so that reduction of detection precision caused by large deviation of the distance from the detection head to the circuit board is avoided, and meanwhile, auxiliary limiting can be performed on the circuit board through cooperation with arrangement of the positioning assembly, so that overlarge deviation during placement of the circuit board is avoided; and the detection precision of the circuit board is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hole inspection machines, in particular to a hole inspection machine for circuit boards. Background Art

[0002] The circuit board hole inspection machine is an advanced high-precision hole wall inspection instrument, which is mainly used to inspect tiny holes on printed circuit boards to ensure their quality. It is mainly composed of a frame, a detection head, a control system and a result display system. Among them, the detection head is the core part, including the light source, optical system and image acquisition device.

[0003] However, the height of the detection head of the existing hole inspection machine is fixed and cannot be adjusted up and down. Since the thickness standards of existing circuit boards mainly include conventional, ultra-thin, high-strength and special, the thickness difference can be as large as one centimeter. As a result, when the detection head is detecting circuit boards with large differences, its distance deviation is large, which will affect its detection efficiency. At the same time, the placement of the circuit board does not have an auxiliary positioning function, so that when the device manually places the circuit board, its deviation angle will be greater than thirty degrees, further reducing its detection accuracy. Utility Model Content

[0004] The purpose of the utility model is to provide a hole inspection machine for circuit boards, so as to solve the problem raised in the above-mentioned background technology that when the detection head detects circuit boards with large gaps, its distance deviation is large, which will affect its detection efficiency, and at the same time, the placement of the circuit board does not have an auxiliary positioning function, so that when the device manually places the circuit board, its deviation angle will be greater than thirty degrees, further reducing its detection accuracy.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hole inspection machine for a circuit board, comprising:

[0006] A frame, wherein a conveyor belt is arranged inside the upper part of the frame, and a detection head is arranged on the upper surface of the frame;

[0007] An adjustment component, the adjustment component includes a column and an adjustment plate, the column is fixedly connected to the upper surface of the frame, the adjustment plate is fixedly connected to the upper surface of the detection head, a positioning pin is passed through the column and the adjustment plate, a slider is fixedly connected to the outer wall of the detection head, a guide rail is slidably inserted inside the slider, and the guide rail is fixedly connected to the column;

[0008] A positioning assembly is located above the conveyor belt.

[0009] Preferably, two handles are fixedly connected to the upper surface of the detection head, and the two handles are symmetrically distributed at two ends of the upper surface of the detection head.

[0010] Preferably, two groups of the adjustment components are provided, and the two groups of the adjustment components are symmetrically distributed at both ends of the detection head, and the column is provided with a mounting groove corresponding to the detection head, and the inner wall of the mounting groove is fixedly connected with a guide rail.

[0011] Preferably, each group of the adjustment components is provided with two guide rails and sliders, and the sliders are connected to the inner wall of the column mounting groove in an up-and-down sliding manner.

[0012] Preferably, the positioning assembly includes a support, which is fixedly connected to the upper surface of the frame, and a threaded rod and a slider are fixedly connected between the corresponding supports. The threaded rod and the guide rod are externally sleeved with a partition, and the external thread of the threaded rod is connected with a nut.

[0013] Preferably, the supports are provided in two groups, and there are two symmetrically distributed supports in the two groups, each group of supports corresponds to a threaded rod and a guide rod respectively, and the partition is slidably connected to the guide rod.

[0014] Preferably, the partition is step-shaped, and an even number of the partitions are provided, a nut is provided on both sides of each of the partitions, and the lower surface of the partition is above the upper surface of the conveyor belt.

[0015] Compared with the prior art, the beneficial effect of the utility model is that the utility model can adjust the height of the detection head by adjusting the setting of the component, thereby avoiding the reduction of detection accuracy caused by a large deviation in the distance from the detection head to the circuit board. At the same time, in conjunction with the setting of the positioning component, the circuit board can be auxiliary limited, thereby avoiding excessive deviation when the circuit board is placed, and further improving the detection accuracy of the circuit board.

[0016] (1) The utility model can adjust the height of the detection head through the setting of the adjustment component by plug-in positioning, so that when the device detects circuit boards of different thicknesses, it can accurately adapt to different circuit boards for detection by adjusting the height of the detection head.

[0017] (2) The utility model, through the setting of the positioning component, can adjust the distance between adjacent partitions to assist in limiting the circuit board, thereby preventing it from being tilted more than 30 degrees, thereby improving the accuracy of circuit board detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 For the utility model Figure 1 A is a schematic diagram of the enlarged structure of the middle part;

[0020] Figure 3 It is a schematic diagram of the partial explosion structure of the utility model;

[0021] Figure 4 It is a partial cross-sectional structural schematic diagram of the utility model;

[0022] Figure 5 It is a schematic diagram of the structure of the positioning component of the utility model.

[0023] In the figure: 1, frame; 2, conveyor belt; 3, detection head; 4, adjustment assembly; 41, column; 42, handle; 43, guide rail; 44, slider; 45, adjustment plate; 46, positioning pin; 5, positioning assembly; 51, support; 52, threaded rod; 53, partition; 54, nut; 55, guide rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 The utility model provides an embodiment: a hole inspection machine for a circuit board, comprising:

[0026] A frame 1, a conveyor belt 2 is arranged inside the upper part of the frame 1, and a detection head 3 is arranged on the upper surface of the frame 1;

[0027] The adjusting component 4 includes a column 41 and an adjusting plate 45. The column 41 is fixedly connected to the upper surface of the frame 1, and the adjusting plate 45 is fixedly connected to the upper surface of the detection head 3. A positioning pin 46 runs through the column 41 and the adjusting plate 45. A slider 44 is fixedly connected to the outer wall of the detection head 3. A guide rail 43 is slidably inserted inside the slider 44, and the guide rail 43 is fixedly connected to the column 41. Through the height adjustment of the column 41 and the adjusting plate 45, the position of the detection head 3 can be flexibly adjusted, so that the detection head 3 can be highly adaptable when detecting circuit boards of different thicknesses, thereby avoiding a large deviation in the spacing between the two, thereby ensuring the high accuracy of its detection;

[0028] The positioning component 5 is located above the conveyor belt 2. The setting of the positioning component 5 can play an auxiliary limiting role for the circuit board, thereby preventing the circuit board from tilting too much during placement and affecting its detection accuracy.

[0029] Furthermore, two handles 42 are fixedly connected to the upper surface of the detection head 3 , and the two handles 42 are symmetrically distributed at both ends of the upper surface of the detection head 3 . The provision of the handles 42 facilitates hand-held control of the detection head 3 .

[0030] Furthermore, there are two groups of adjustment components 4, and the two groups of adjustment components 4 are symmetrically distributed at both ends of the detection head 3. The column 41 is provided with a mounting groove corresponding to the detection head 3, and the inner wall of the mounting groove is fixedly connected with a guide rail 43. Each group of adjustment components 4 is provided with two guide rails 43 and a slider 44. The slider 44 is slidably connected to the inner wall of the mounting groove of the column 41 up and down. Through the sliding connection between the guide rail 43 and the slider 44, a good guiding and limiting effect is played to ensure the stability of the up and down adjustment of the detection head 3.

[0031] Furthermore, the positioning assembly 5 includes a support 51, which is fixedly connected to the upper surface of the frame 1, and a threaded rod 52 and a slider 44 are fixedly connected between the corresponding supports 51. The outer sleeves of the threaded rod 52 and the guide rod 55 are provided with partitions 53, and the outer threads of the threaded rod 52 are connected with nuts 54. By adjusting the spacing between adjacent partitions 53, it can adapt to the placement of circuit boards of different sizes, so that when placing the circuit boards, they can only be placed between adjacent partitions 53 when the inclination angle is less than thirty degrees, thereby avoiding the circuit boards from being placed too tilted.

[0032] Furthermore, two groups of supports 51 are provided, and two groups of supports 51 are symmetrically distributed. Each group of supports 51 corresponds to the threaded rod 52 and the guide rod 55 respectively, and the partition plate 53 is slidably connected to the guide rod 55.

[0033] Furthermore, the partition 53 is in a step shape, and an even number of the partitions 53 are provided, a nut 54 is provided on both sides of each partition 53, and the lower surface of the partition 53 is above the upper surface of the conveyor belt 2.

[0034] Working principle: The frame 1, conveyor belt 2 and detection head 3 used in this application are all products that can be directly purchased on the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be repeated here. When the utility model is in use, the height of the detection head 3 is first adjusted according to the model of the circuit board, and the spacing between the partitions 53 is adjusted at the same time, and then the circuit board is placed between adjacent partitions 53, and is transported by the conveyor belt 2 and moved to the bottom of the detection head 3 for detection.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A hole inspection machine for a circuit board, characterized in that: include: A frame (1), a conveyor belt (2) is arranged inside the upper part of the frame (1), and a detection head (3) is arranged on the upper surface of the frame (1); An adjustment component (4), the adjustment component (4) comprising a column (41) and an adjustment plate (45), the column (41) being fixedly connected to the upper surface of the frame (1), the adjustment plate (45) being fixedly connected to the upper surface of the detection head (3), a positioning pin (46) passing through the column (41) and the adjustment plate (45), a slider (44) being fixedly connected to the outer wall of the detection head (3), a guide rail (43) being slidably inserted inside the slider (44), and the guide rail (43) being fixedly connected to the column (41); A positioning assembly (5), wherein the positioning assembly (5) is located above the conveyor belt (2).

2. A circuit board hole inspection machine according to claim 1, characterized in that: Two handles (42) are fixedly connected to the upper surface of the detection head (3), and the two handles (42) are symmetrically distributed at two ends of the upper surface of the detection head (3).

3. The circuit board hole inspection machine according to claim 1, characterized in that: The adjustment components (4) are provided in two groups in total, and the two groups of the adjustment components (4) are symmetrically distributed at both ends of the detection head (3); the column (41) is provided with a mounting groove corresponding to the detection head (3), and the inner wall of the mounting groove is fixedly connected with a guide rail (43).

4. A circuit board hole inspection machine according to claim 3, characterized in that: Each group of the adjustment components (4) is provided with two guide rails (43) and a slide block (44), and the slide block (44) is slidably connected to the inner wall of the installation groove of the column (41) up and down.

5. The circuit board hole inspection machine according to claim 1, characterized in that: The positioning assembly (5) comprises a support (51), wherein the support (51) is fixedly connected to the upper surface of the frame (1), and threaded rods (52) and sliders (44) are fixedly connected between corresponding supports (51), a partition plate (53) is sleeved on the outside of the threaded rod (52) and the guide rod (55), and a nut (54) is threadedly connected to the outside of the threaded rod (52).

6. A circuit board hole inspection machine according to claim 5, characterized in that: There are two groups of supports (51) in total, and two groups of supports (51) are symmetrically distributed. Each group of supports (51) corresponds to a threaded rod (52) and a guide rod (55), respectively, and the partition plate (53) is slidably connected to the guide rod (55).

7. The circuit board hole inspection machine according to claim 5, characterized in that: The partition (53) is in a step shape, and an even number of partitions (53) are provided. A nut (54) is provided on both sides of each partition (53), and the lower surface of the partition (53) is located above the upper surface of the conveyor belt (2).

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